",
+ name: 'vddl-draggable',
+ // css: vddl-dragging, vddl-dragging-source
+ props: {
+ draggable: [ Object, Array ],
+ wrapper: Array,
+ index: Number,
+
+ effectAllowed: String,
+ type: String,
+
+ // diable
+ disableIf: Boolean,
+
+ // callback fn
+ dragstart: Function,
+ selected: Function,
+ dragend: Function,
+ moved: Function,
+ copied: Function,
+ canceled: Function,
+ },
+ data: function data() {
+ return {};
+ },
+ computed: {},
+ methods: {
+ handleDragstart: function handleDragstart(event) {
+ var this$1 = this;
+
+ var draggable = JSON.stringify(this.draggable);
+ // Check whether the element is draggable, since dragstart might be triggered on a child.
+ if (draggable == 'false' || this.disableIf) { return true; }
+
+ // Serialize the data associated with this element. IE only supports the Text drag type
+ event.dataTransfer.setData("Text", draggable);
+
+ // Only allow actions specified in effect-allowed attribute
+ event.dataTransfer.effectAllowed = this.effectAllowed || "move";
+
+ // Add CSS classes. IE9 not support 'classList'
+ this.$el.className = this.$el.className.trim() + " vddl-dragging";
+ setTimeout(function () {
+ this$1.$el.className = this$1.$el.className.trim() + " vddl-dragging-source";
+ }, 0);
+
+ // Workarounds for stupid browsers, see description below
+ this.vddlDropEffectWorkaround.dropEffect = "none";
+ this.vddlDragTypeWorkaround.isDragging = true;
+
+ // Save type of item in global state. Usually, this would go into the dataTransfer
+ // typename, but we have to use "Text" there to support IE
+ this.vddlDragTypeWorkaround.dragType = this.type || undefined;
+
+ // Try setting a proper drag image if triggered on a vddl-handle (won't work in IE).
+ if (event._dndHandle && event.dataTransfer.setDragImage) {
+ event.dataTransfer.setDragImage(this.$el, event._dndHandleLeft, event._dndHandleTop);
+ }
+
+ // Invoke callback
+ if (typeof(this.dragstart) === 'function') {
+ this.dragstart.call(this, event.target);
+ }
+ },
+
+ handleDragend: function handleDragend(event) {
+ var this$1 = this;
+
+ var dropEffect = this.vddlDropEffectWorkaround.dropEffect;
+ switch (dropEffect) {
+ case "move":
+ if (typeof(this.moved) === 'function') {
+ this.$nextTick(function () {
+ this$1.moved({
+ index: this$1.index,
+ list: this$1.wrapper,
+ event: event.target,
+ draggable: this$1.draggable,
+ });
+ });
+ } else {
+ this.$nextTick(function () {
+ this$1.wrapper.splice(this$1.index, 1);
+ });
+ }
+ break;
+ case "copy":
+ if (typeof(this.copied) === 'function') {
+ this.copied(this.draggable, event.target);
+ }
+ break;
+ case "none":
+ if (typeof(this.canceled) === 'function') {
+ this.canceled(event.target);
+ }
+ break;
+ }
+ if (typeof(this.dragend) === 'function') {
+ this.dragend(dropEffect, event.target);
+ }
+
+ // Clean up
+ this.$el.className = this.$el.className.replace("vddl-dragging", "").trim();
+ setTimeout(function () {
+ if (this$1.$el) { this$1.$el.className = this$1.$el.className.replace("vddl-dragging-source", "").trim(); }
+ }, 0);
+ this.vddlDragTypeWorkaround.isDragging = false;
+ },
+
+ handleClick: function handleClick(event) {
+ if (!this.selected) { return; }
+
+ if (typeof(this.selected) === 'function') {
+ this.selected(this.wrapper[this.index], event.target);
+ }
+ },
+
+ /**
+ * Workaround to make element draggable in IE9
+ * http://stackoverflow.com/questions/5500615/internet-explorer-9-drag-and-drop-dnd
+ */
+ handleSelected: function handleSelected() {
+ if (this.dragDrop) { this.dragDrop(); }
+ return false;
+ },
+
+ // init
+ init: function init() {
+ var status = true;
+ if (this.disableIf) { status = false; }
+ this.$el.setAttribute('draggable', status);
+ },
+ },
+ watch: {
+ disableIf: function disableIf(val) {
+ this.$el.setAttribute('draggable', !val);
+ },
+ },
+ // For Vue 1.0
+ ready: function ready() {
+ this.init();
+ },
+ mounted: function mounted() {
+ this.init();
+ },
+};
+
+var List = { template: "
",
+ name: 'vddl-list',
+ // css: placeholder, dragover
+ props: {
+ list: Array,
+
+ allowedTypes: Array,
+ disableIf: Boolean,
+ horizontal: Boolean,
+ externalSources: Boolean,
+
+ dragover: Function,
+ inserted: Function,
+ drop: Function,
+ },
+ data: function data() {
+ return {};
+ },
+ computed: {},
+ methods: {
+ handleDragenter: function handleDragenter(event) {
+ if (!this.isDropAllowed(event)) { return true; }
+ },
+
+ handleDragover: function handleDragover(event) {
+ var this$1 = this;
+
+ if (!this.isDropAllowed(event)) { return true; }
+
+ if (this.placeholderNode.parentNode != this.listNode) {
+ this.listNode.appendChild(this.placeholderNode);
+ }
+
+ if (event.target !== this.listNode) {
+ // Try to find the node direct directly below the list node.
+ var listItemNode = event.target;
+ while (listItemNode.parentNode !== this.listNode && listItemNode.parentNode) {
+ listItemNode = listItemNode.parentNode;
+ }
+ if (listItemNode.parentNode === this.listNode && listItemNode !== this.placeholderNode) {
+ // If the mouse pointer is in the upper half of the child element,
+ // we place it before the child element, otherwise below it.
+ if (this.isMouseInFirstHalf(event, listItemNode)) {
+ this.listNode.insertBefore(this.placeholderNode, listItemNode);
+ } else {
+ this.listNode.insertBefore(this.placeholderNode, listItemNode.nextSibling);
+ }
+ }
+ } else {
+ // This branch is reached when we are dragging directly over the list element.
+ // Usually we wouldn't need to do anything here, but the IE does not fire it's
+ // events for the child element, only for the list directly. Therefore, we repeat
+ // the positioning algorithm for IE here.
+ if (this.isMouseInFirstHalf(event, this.placeholderNode, true)) {
+ // Check if we should move the placeholder element one spot towards the top.
+ // Note that display none elements will have offsetTop and offsetHeight set to
+ // zero, therefore we need a special check for them.
+ while (this.placeholderNode.previousElementSibling
+ && (this.isMouseInFirstHalf(event, this.placeholderNode.previousElementSibling, true)
+ || this.placeholderNode.previousElementSibling.offsetHeight === 0)) {
+ this$1.listNode.insertBefore(this$1.placeholderNode, this$1.placeholderNode.previousElementSibling);
+ }
+ } else {
+ // Check if we should move the placeholder element one spot towards the bottom
+ while (this.placeholderNode.nextElementSibling &&
+ !this.isMouseInFirstHalf(event, this.placeholderNode.nextElementSibling, true)) {
+ this$1.listNode.insertBefore(this$1.placeholderNode,
+ this$1.placeholderNode.nextElementSibling.nextElementSibling);
+ }
+ }
+ }
+
+ // At this point we invoke the callback, which still can disallow the drop.
+ // We can't do this earlier because we want to pass the index of the placeholder.
+ if (this.dragover && !this.invokeCallback('dragover', event, this.getPlaceholderIndex())) {
+ return this.stopDragover(event);
+ }
+
+ if (this.$el.className.indexOf("vddl-dragover") < 0) { this.$el.className = this.$el.className.trim() + " vddl-dragover"; }
+ return false;
+ },
+ handleDrop: function handleDrop(event) {
+ if (!this.isDropAllowed(event)) { return true; }
+
+ // The default behavior in Firefox is to interpret the dropped element as URL and
+ // forward to it. We want to prevent that even if our drop is aborted.
+
+ // Unserialize the data that was serialized in dragstart. According to the HTML5 specs,
+ // the "Text" drag type will be converted to text/plain, but IE does not do that.
+ var data = event.dataTransfer.getData("Text") || event.dataTransfer.getData("text/plain");
+ var transferredObject;
+ try {
+ transferredObject = JSON.parse(data);
+ } catch(e) {
+ return this.stopDragover();
+ }
+
+ // Invoke the callback, which can transform the transferredObject and even abort the drop.
+ var index = this.getPlaceholderIndex();
+ if (this.drop) {
+ transferredObject = this.invokeCallback('drop', event, index, transferredObject);
+ if (!transferredObject) {
+ return this.stopDragover();
+ }
+ }
+
+ // Insert the object into the array, unless drop took care of that (returned true).
+ if (transferredObject !== true) {
+ this.list.splice(index, 0, transferredObject);
+ }
+ this.invokeCallback('inserted', event, index, transferredObject);
+
+ // In Chrome on Windows the dropEffect will always be none...
+ // We have to determine the actual effect manually from the allowed effects
+ if (event.dataTransfer.dropEffect === "none") {
+ if (event.dataTransfer.effectAllowed === "copy" ||
+ event.dataTransfer.effectAllowed === "move") {
+ this.vddlDropEffectWorkaround.dropEffect = event.dataTransfer.effectAllowed;
+ } else {
+ this.vddlDropEffectWorkaround.dropEffect = event.ctrlKey ? "copy" : "move";
+ }
+ } else {
+ this.vddlDropEffectWorkaround.dropEffect = event.dataTransfer.dropEffect;
+ }
+
+ // Clean up
+ this.stopDragover();
+ return false;
+ },
+ handleDragleave: function handleDragleave(event) {
+ var this$1 = this;
+
+ this.$el.className = this.$el.className.replace("vddl-dragover", "").trim();
+ setTimeout(function () {
+ if (this$1.$el.className.indexOf("vddl-dragover") < 0) {
+ this$1.placeholderNode.parentNode && this$1.placeholderNode.parentNode.removeChild(this$1.placeholderNode);
+ }
+ }, 100);
+ },
+
+ // Checks whether the mouse pointer is in the first half of the given target element.
+ isMouseInFirstHalf: function isMouseInFirstHalf(event, targetNode, relativeToParent) {
+ var mousePointer = this.horizontal ? (event.offsetX || event.layerX)
+ : (event.offsetY || event.layerY);
+ var targetSize = this.horizontal ? targetNode.offsetWidth : targetNode.offsetHeight;
+ var targetPosition = this.horizontal ? targetNode.offsetLeft : targetNode.offsetTop;
+ targetPosition = relativeToParent ? targetPosition : 0;
+ return mousePointer < targetPosition + targetSize / 2;
+ },
+
+ /**
+ * Tries to find a child element that has the 'vddl-placeholder' class set. If none was found, a
+ * new div element is created.
+ */
+ getPlaceholderElement: function getPlaceholderElement() {
+ var placeholder,
+ oldPlaceholder = this.$el.parentNode.querySelectorAll('.vddl-placeholder');
+ if (oldPlaceholder.length > 0) {
+ placeholder = oldPlaceholder[0];
+ return placeholder;
+ }
+ var newPlaceholder = document.createElement('div');
+ newPlaceholder.setAttribute('class', 'vddl-placeholder');
+ return newPlaceholder;
+ },
+
+ getPlaceholderIndex: function getPlaceholderIndex() {
+ return Array.prototype.indexOf.call(this.listNode.children, this.placeholderNode);
+ },
+
+ /**
+ * Checks various conditions that must be fulfilled for a drop to be allowed
+ */
+ isDropAllowed: function isDropAllowed(event) {
+ // Disallow drop from external source unless it's allowed explicitly.
+ if (!this.vddlDragTypeWorkaround.isDragging && !this.externalSources) { return false; }
+
+ // Check mimetype. Usually we would use a custom drag type instead of Text, but IE doesn't
+ // support that.
+ if (!this.hasTextMimetype(event.dataTransfer.types)) { return false; }
+
+ // Now check the allowed-types against the type of the incoming element. For drops from
+ // external sources we don't know the type, so it will need to be checked via drop.
+ if (this.allowedTypes && this.vddlDragTypeWorkaround.isDragging) {
+ var allowed = this.allowedTypes;
+ if (Array.isArray(allowed) && allowed.indexOf(this.vddlDragTypeWorkaround.dragType) === -1) {
+ return false;
+ }
+ }
+
+ // Check whether droping is disabled completely
+ if (this.disableIf) { return false; }
+
+ return true;
+ },
+
+ /**
+ * Small helper function that cleans up if we aborted a drop.
+ */
+ stopDragover: function stopDragover() {
+ this.placeholderNode.parentNode && this.placeholderNode.parentNode.removeChild(this.placeholderNode);
+ this.$el.className = this.$el.className.replace("vddl-dragover", "").trim();
+ return true;
+ },
+
+ /**
+ * Invokes a callback with some interesting parameters and returns the callbacks return value.
+ */
+ invokeCallback: function invokeCallback(expression, event, index, item) {
+ var fn = this[expression];
+ if (fn) {
+ fn({
+ event: event,
+ index: index,
+ item: item || undefined,
+ list: this.list,
+ external: !this.vddlDragTypeWorkaround.isDragging,
+ type: this.vddlDragTypeWorkaround.isDragging ? this.vddlDragTypeWorkaround.dragType : undefined
+ });
+ }
+ return fn ? true : false;
+ },
+
+ /**
+ * Check if the dataTransfer object contains a drag type that we can handle. In old versions
+ * of IE the types collection will not even be there, so we just assume a drop is possible.
+ */
+ hasTextMimetype: function hasTextMimetype(types) {
+ if (!types) { return true; }
+ for (var i = 0; i < types.length; i += 1) {
+ if (types[i] === "Text" || types[i] === "text/plain") { return true; }
+ }
+
+ return false;
+ },
+ init: function init() {
+ this.placeholderNode = this.getPlaceholderElement();
+ this.listNode = this.$el;
+ this.placeholderNode.parentNode && this.placeholderNode.parentNode.removeChild(this.placeholderNode);
+ },
+ },
+ ready: function ready() {
+ this.init();
+ },
+ mounted: function mounted() {
+ this.init();
+ },
+};
+
+var Handle = { template: "
",
+ name: 'vddl-nodrag',
+ props: {},
+ data: function data() {
+ return {};
+ },
+ computed: {},
+ methods: {
+ handleDragstart: function handleDragstart(event) {
+ if (!event._dndHandle) {
+ // If a child element already reacted to dragstart and set a dataTransfer object, we will
+ // allow that. For example, this is the case for user selections inside of input elements.
+ if (!(event.dataTransfer.types && event.dataTransfer.types.length)) {
+ event.preventDefault();
+ }
+ event.stopPropagation();
+ }
+ },
+ handleDragend: function handleDragend(event) {
+ if (!event._dndHandle) {
+ event.stopPropagation();
+ }
+ },
+ init: function init() {
+ this.$el.setAttribute('draggable', true);
+ },
+ },
+ ready: function ready() {
+ this.init();
+ },
+ mounted: function mounted() {
+ this.init();
+ },
+};
+
+var Placeholder = { template: "
",
+ name: 'vddl-placeholder',
+};
+
+var install = function (Vue) {
+ /* eslint no-param-reassign: 0 */
+ Vue.prototype.vddlDropEffectWorkaround = {};
+ Vue.prototype.vddlDragTypeWorkaround = {};
+
+ Vue.component(Draggable.name, Draggable);
+ Vue.component(List.name, List);
+ Vue.component(Handle.name, Handle);
+ Vue.component(Nodrag.name, Nodrag);
+ Vue.component(Placeholder.name, Placeholder);
+};
+
+/* eslint no-undef:0 */
+if (typeof window !== 'undefined' && window.Vue) {
+ install(window.Vue);
+}
+
+var install$1 = { install: install };
+
+return install$1;
+
+})));
diff --git a/view/adminhtml/web/js/lib/vue-select.js b/view/adminhtml/web/js/lib/vue-select.js
new file mode 100755
index 0000000..c166a29
--- /dev/null
+++ b/view/adminhtml/web/js/lib/vue-select.js
@@ -0,0 +1,2 @@
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.VueSelect=e():t.VueSelect=e()}(this,function(){return function(t){function e(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return t[r].call(o.exports,o,o.exports,e),o.loaded=!0,o.exports}var n={};return e.m=t,e.c=n,e.p="/",e(0)}([function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{default:t}}Object.defineProperty(e,"__esModule",{value:!0}),e.mixins=e.VueSelect=void 0;var o=n(83),i=r(o),a=n(42),s=r(a);e.default=i.default,e.VueSelect=i.default,e.mixins=s.default},function(t,e){var n=t.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=n)},function(t,e,n){t.exports=!n(9)(function(){return 7!=Object.defineProperty({},"a",{get:function(){return 7}}).a})},function(t,e){var 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e=document.createElement("style");return e.type="text/css",i(t,e),e}function u(t,e){var n,r,o;if(e.singleton){var i=v++;n=b||(b=s(e)),r=l.bind(null,n,i,!1),o=l.bind(null,n,i,!0)}else n=s(e),r=c.bind(null,n),o=function(){a(n)};return r(t),function(e){if(e){if(e.css===t.css&&e.media===t.media&&e.sourceMap===t.sourceMap)return;r(t=e)}else o()}}function l(t,e,n,r){var o=n?"":r.css;if(t.styleSheet)t.styleSheet.cssText=y(e,o);else{var i=document.createTextNode(o),a=t.childNodes;a[e]&&t.removeChild(a[e]),a.length?t.insertBefore(i,a[e]):t.appendChild(i)}}function c(t,e){var n=e.css,r=e.media,o=e.sourceMap;if(r&&t.setAttribute("media",r),o&&(n+="\n/*# sourceURL="+o.sources[0]+" */",n+="\n/*# sourceMappingURL=data:application/json;base64,"+btoa(unescape(encodeURIComponent(JSON.stringify(o))))+" */"),t.styleSheet)t.styleSheet.cssText=n;else{for(;t.firstChild;)t.removeChild(t.firstChild);t.appendChild(document.createTextNode(n))}}var f={},p=function(t){var e;return function(){return"undefined"==typeof e&&(e=t.apply(this,arguments)),e}},d=p(function(){return/msie [6-9]\b/.test(window.navigator.userAgent.toLowerCase())}),h=p(function(){return document.head||document.getElementsByTagName("head")[0]}),b=null,v=0,g=[];t.exports=function(t,e){e=e||{},"undefined"==typeof e.singleton&&(e.singleton=d()),"undefined"==typeof e.insertAt&&(e.insertAt="bottom");var n=o(t);return r(n,e),function(t){for(var i=[],a=0;a= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+ return val == null
+ ? ''
+ : typeof val === 'object'
+ ? JSON.stringify(val, null, 2)
+ : String(val)
+}
+
+/**
+ * Convert a input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+ var n = parseFloat(val);
+ return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+ str,
+ expectsLowerCase
+) {
+ var map = Object.create(null);
+ var list = str.split(',');
+ for (var i = 0; i < list.length; i++) {
+ map[list[i]] = true;
+ }
+ return expectsLowerCase
+ ? function (val) { return map[val.toLowerCase()]; }
+ : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if a attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array
+ */
+function remove (arr, item) {
+ if (arr.length) {
+ var index = arr.indexOf(item);
+ if (index > -1) {
+ return arr.splice(index, 1)
+ }
+ }
+}
+
+/**
+ * Check whether the object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+ return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+ var cache = Object.create(null);
+ return (function cachedFn (str) {
+ var hit = cache[str];
+ return hit || (cache[str] = fn(str))
+ })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+ return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = cached(function (str) {
+ return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+ return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind, faster than native
+ */
+function bind (fn, ctx) {
+ function boundFn (a) {
+ var l = arguments.length;
+ return l
+ ? l > 1
+ ? fn.apply(ctx, arguments)
+ : fn.call(ctx, a)
+ : fn.call(ctx)
+ }
+ // record original fn length
+ boundFn._length = fn.length;
+ return boundFn
+}
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+ start = start || 0;
+ var i = list.length - start;
+ var ret = new Array(i);
+ while (i--) {
+ ret[i] = list[i + start];
+ }
+ return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+ for (var key in _from) {
+ to[key] = _from[key];
+ }
+ return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+ var res = {};
+ for (var i = 0; i < arr.length; i++) {
+ if (arr[i]) {
+ extend(res, arr[i]);
+ }
+ }
+ return res
+}
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/**
+ * Return same value
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Generate a static keys string from compiler modules.
+ */
+function genStaticKeys (modules) {
+ return modules.reduce(function (keys, m) {
+ return keys.concat(m.staticKeys || [])
+ }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+ if (a === b) { return true }
+ var isObjectA = isObject(a);
+ var isObjectB = isObject(b);
+ if (isObjectA && isObjectB) {
+ try {
+ var isArrayA = Array.isArray(a);
+ var isArrayB = Array.isArray(b);
+ if (isArrayA && isArrayB) {
+ return a.length === b.length && a.every(function (e, i) {
+ return looseEqual(e, b[i])
+ })
+ } else if (!isArrayA && !isArrayB) {
+ var keysA = Object.keys(a);
+ var keysB = Object.keys(b);
+ return keysA.length === keysB.length && keysA.every(function (key) {
+ return looseEqual(a[key], b[key])
+ })
+ } else {
+ /* istanbul ignore next */
+ return false
+ }
+ } catch (e) {
+ /* istanbul ignore next */
+ return false
+ }
+ } else if (!isObjectA && !isObjectB) {
+ return String(a) === String(b)
+ } else {
+ return false
+ }
+}
+
+function looseIndexOf (arr, val) {
+ for (var i = 0; i < arr.length; i++) {
+ if (looseEqual(arr[i], val)) { return i }
+ }
+ return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+ var called = false;
+ return function () {
+ if (!called) {
+ called = true;
+ fn.apply(this, arguments);
+ }
+ }
+}
+
+var SSR_ATTR = 'data-server-rendered';
+
+var ASSET_TYPES = [
+ 'component',
+ 'directive',
+ 'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+ 'beforeCreate',
+ 'created',
+ 'beforeMount',
+ 'mounted',
+ 'beforeUpdate',
+ 'updated',
+ 'beforeDestroy',
+ 'destroyed',
+ 'activated',
+ 'deactivated',
+ 'errorCaptured'
+];
+
+/* */
+
+var config = ({
+ /**
+ * Option merge strategies (used in core/util/options)
+ */
+ // $flow-disable-line
+ optionMergeStrategies: Object.create(null),
+
+ /**
+ * Whether to suppress warnings.
+ */
+ silent: false,
+
+ /**
+ * Show production mode tip message on boot?
+ */
+ productionTip: "development" !== 'production',
+
+ /**
+ * Whether to enable devtools
+ */
+ devtools: "development" !== 'production',
+
+ /**
+ * Whether to record perf
+ */
+ performance: false,
+
+ /**
+ * Error handler for watcher errors
+ */
+ errorHandler: null,
+
+ /**
+ * Warn handler for watcher warns
+ */
+ warnHandler: null,
+
+ /**
+ * Ignore certain custom elements
+ */
+ ignoredElements: [],
+
+ /**
+ * Custom user key aliases for v-on
+ */
+ // $flow-disable-line
+ keyCodes: Object.create(null),
+
+ /**
+ * Check if a tag is reserved so that it cannot be registered as a
+ * component. This is platform-dependent and may be overwritten.
+ */
+ isReservedTag: no,
+
+ /**
+ * Check if an attribute is reserved so that it cannot be used as a component
+ * prop. This is platform-dependent and may be overwritten.
+ */
+ isReservedAttr: no,
+
+ /**
+ * Check if a tag is an unknown element.
+ * Platform-dependent.
+ */
+ isUnknownElement: no,
+
+ /**
+ * Get the namespace of an element
+ */
+ getTagNamespace: noop,
+
+ /**
+ * Parse the real tag name for the specific platform.
+ */
+ parsePlatformTagName: identity,
+
+ /**
+ * Check if an attribute must be bound using property, e.g. value
+ * Platform-dependent.
+ */
+ mustUseProp: no,
+
+ /**
+ * Exposed for legacy reasons
+ */
+ _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/* */
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+ var c = (str + '').charCodeAt(0);
+ return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+ Object.defineProperty(obj, key, {
+ value: val,
+ enumerable: !!enumerable,
+ writable: true,
+ configurable: true
+ });
+}
+
+/**
+ * Parse simple path.
+ */
+var bailRE = /[^\w.$]/;
+function parsePath (path) {
+ if (bailRE.test(path)) {
+ return
+ }
+ var segments = path.split('.');
+ return function (obj) {
+ for (var i = 0; i < segments.length; i++) {
+ if (!obj) { return }
+ obj = obj[segments[i]];
+ }
+ return obj
+ }
+}
+
+/* */
+
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+ try {
+ var opts = {};
+ Object.defineProperty(opts, 'passive', ({
+ get: function get () {
+ /* istanbul ignore next */
+ supportsPassive = true;
+ }
+ })); // https://github.com/facebook/flow/issues/285
+ window.addEventListener('test-passive', null, opts);
+ } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+ if (_isServer === undefined) {
+ /* istanbul ignore if */
+ if (!inBrowser && typeof global !== 'undefined') {
+ // detect presence of vue-server-renderer and avoid
+ // Webpack shimming the process
+ _isServer = global['process'].env.VUE_ENV === 'server';
+ } else {
+ _isServer = false;
+ }
+ }
+ return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+ return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+ typeof Symbol !== 'undefined' && isNative(Symbol) &&
+ typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+ // use native Set when available.
+ _Set = Set;
+} else {
+ // a non-standard Set polyfill that only works with primitive keys.
+ _Set = (function () {
+ function Set () {
+ this.set = Object.create(null);
+ }
+ Set.prototype.has = function has (key) {
+ return this.set[key] === true
+ };
+ Set.prototype.add = function add (key) {
+ this.set[key] = true;
+ };
+ Set.prototype.clear = function clear () {
+ this.set = Object.create(null);
+ };
+
+ return Set;
+ }());
+}
+
+/* */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+{
+ var hasConsole = typeof console !== 'undefined';
+ var classifyRE = /(?:^|[-_])(\w)/g;
+ var classify = function (str) { return str
+ .replace(classifyRE, function (c) { return c.toUpperCase(); })
+ .replace(/[-_]/g, ''); };
+
+ warn = function (msg, vm) {
+ var trace = vm ? generateComponentTrace(vm) : '';
+
+ if (config.warnHandler) {
+ config.warnHandler.call(null, msg, vm, trace);
+ } else if (hasConsole && (!config.silent)) {
+ console.error(("[Vue warn]: " + msg + trace));
+ }
+ };
+
+ tip = function (msg, vm) {
+ if (hasConsole && (!config.silent)) {
+ console.warn("[Vue tip]: " + msg + (
+ vm ? generateComponentTrace(vm) : ''
+ ));
+ }
+ };
+
+ formatComponentName = function (vm, includeFile) {
+ if (vm.$root === vm) {
+ return ''
+ }
+ var options = typeof vm === 'function' && vm.cid != null
+ ? vm.options
+ : vm._isVue
+ ? vm.$options || vm.constructor.options
+ : vm || {};
+ var name = options.name || options._componentTag;
+ var file = options.__file;
+ if (!name && file) {
+ var match = file.match(/([^/\\]+)\.vue$/);
+ name = match && match[1];
+ }
+
+ return (
+ (name ? ("<" + (classify(name)) + ">") : "") +
+ (file && includeFile !== false ? (" at " + file) : '')
+ )
+ };
+
+ var repeat = function (str, n) {
+ var res = '';
+ while (n) {
+ if (n % 2 === 1) { res += str; }
+ if (n > 1) { str += str; }
+ n >>= 1;
+ }
+ return res
+ };
+
+ generateComponentTrace = function (vm) {
+ if (vm._isVue && vm.$parent) {
+ var tree = [];
+ var currentRecursiveSequence = 0;
+ while (vm) {
+ if (tree.length > 0) {
+ var last = tree[tree.length - 1];
+ if (last.constructor === vm.constructor) {
+ currentRecursiveSequence++;
+ vm = vm.$parent;
+ continue
+ } else if (currentRecursiveSequence > 0) {
+ tree[tree.length - 1] = [last, currentRecursiveSequence];
+ currentRecursiveSequence = 0;
+ }
+ }
+ tree.push(vm);
+ vm = vm.$parent;
+ }
+ return '\n\nfound in\n\n' + tree
+ .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+ ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+ : formatComponentName(vm))); })
+ .join('\n')
+ } else {
+ return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+ }
+ };
+}
+
+/* */
+
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+ this.id = uid++;
+ this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+ this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+ remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+ if (Dep.target) {
+ Dep.target.addDep(this);
+ }
+};
+
+Dep.prototype.notify = function notify () {
+ // stabilize the subscriber list first
+ var subs = this.subs.slice();
+ for (var i = 0, l = subs.length; i < l; i++) {
+ subs[i].update();
+ }
+};
+
+// the current target watcher being evaluated.
+// this is globally unique because there could be only one
+// watcher being evaluated at any time.
+Dep.target = null;
+var targetStack = [];
+
+function pushTarget (_target) {
+ if (Dep.target) { targetStack.push(Dep.target); }
+ Dep.target = _target;
+}
+
+function popTarget () {
+ Dep.target = targetStack.pop();
+}
+
+/* */
+
+var VNode = function VNode (
+ tag,
+ data,
+ children,
+ text,
+ elm,
+ context,
+ componentOptions,
+ asyncFactory
+) {
+ this.tag = tag;
+ this.data = data;
+ this.children = children;
+ this.text = text;
+ this.elm = elm;
+ this.ns = undefined;
+ this.context = context;
+ this.fnContext = undefined;
+ this.fnOptions = undefined;
+ this.fnScopeId = undefined;
+ this.key = data && data.key;
+ this.componentOptions = componentOptions;
+ this.componentInstance = undefined;
+ this.parent = undefined;
+ this.raw = false;
+ this.isStatic = false;
+ this.isRootInsert = true;
+ this.isComment = false;
+ this.isCloned = false;
+ this.isOnce = false;
+ this.asyncFactory = asyncFactory;
+ this.asyncMeta = undefined;
+ this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+ return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+ if ( text === void 0 ) text = '';
+
+ var node = new VNode();
+ node.text = text;
+ node.isComment = true;
+ return node
+};
+
+function createTextVNode (val) {
+ return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+ var componentOptions = vnode.componentOptions;
+ var cloned = new VNode(
+ vnode.tag,
+ vnode.data,
+ vnode.children,
+ vnode.text,
+ vnode.elm,
+ vnode.context,
+ componentOptions,
+ vnode.asyncFactory
+ );
+ cloned.ns = vnode.ns;
+ cloned.isStatic = vnode.isStatic;
+ cloned.key = vnode.key;
+ cloned.isComment = vnode.isComment;
+ cloned.fnContext = vnode.fnContext;
+ cloned.fnOptions = vnode.fnOptions;
+ cloned.fnScopeId = vnode.fnScopeId;
+ cloned.isCloned = true;
+ if (deep) {
+ if (vnode.children) {
+ cloned.children = cloneVNodes(vnode.children, true);
+ }
+ if (componentOptions && componentOptions.children) {
+ componentOptions.children = cloneVNodes(componentOptions.children, true);
+ }
+ }
+ return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+ var len = vnodes.length;
+ var res = new Array(len);
+ for (var i = 0; i < len; i++) {
+ res[i] = cloneVNode(vnodes[i], deep);
+ }
+ return res
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);[
+ 'push',
+ 'pop',
+ 'shift',
+ 'unshift',
+ 'splice',
+ 'sort',
+ 'reverse'
+].forEach(function (method) {
+ // cache original method
+ var original = arrayProto[method];
+ def(arrayMethods, method, function mutator () {
+ var args = [], len = arguments.length;
+ while ( len-- ) args[ len ] = arguments[ len ];
+
+ var result = original.apply(this, args);
+ var ob = this.__ob__;
+ var inserted;
+ switch (method) {
+ case 'push':
+ case 'unshift':
+ inserted = args;
+ break
+ case 'splice':
+ inserted = args.slice(2);
+ break
+ }
+ if (inserted) { ob.observeArray(inserted); }
+ // notify change
+ ob.dep.notify();
+ return result
+ });
+});
+
+/* */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * By default, when a reactive property is set, the new value is
+ * also converted to become reactive. However when passing down props,
+ * we don't want to force conversion because the value may be a nested value
+ * under a frozen data structure. Converting it would defeat the optimization.
+ */
+var observerState = {
+ shouldConvert: true
+};
+
+/**
+ * Observer class that are attached to each observed
+ * object. Once attached, the observer converts target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatches updates.
+ */
+var Observer = function Observer (value) {
+ this.value = value;
+ this.dep = new Dep();
+ this.vmCount = 0;
+ def(value, '__ob__', this);
+ if (Array.isArray(value)) {
+ var augment = hasProto
+ ? protoAugment
+ : copyAugment;
+ augment(value, arrayMethods, arrayKeys);
+ this.observeArray(value);
+ } else {
+ this.walk(value);
+ }
+};
+
+/**
+ * Walk through each property and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+ var keys = Object.keys(obj);
+ for (var i = 0; i < keys.length; i++) {
+ defineReactive(obj, keys[i], obj[keys[i]]);
+ }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+ for (var i = 0, l = items.length; i < l; i++) {
+ observe(items[i]);
+ }
+};
+
+// helpers
+
+/**
+ * Augment an target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src, keys) {
+ /* eslint-disable no-proto */
+ target.__proto__ = src;
+ /* eslint-enable no-proto */
+}
+
+/**
+ * Augment an target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+ for (var i = 0, l = keys.length; i < l; i++) {
+ var key = keys[i];
+ def(target, key, src[key]);
+ }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+ if (!isObject(value) || value instanceof VNode) {
+ return
+ }
+ var ob;
+ if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+ ob = value.__ob__;
+ } else if (
+ observerState.shouldConvert &&
+ !isServerRendering() &&
+ (Array.isArray(value) || isPlainObject(value)) &&
+ Object.isExtensible(value) &&
+ !value._isVue
+ ) {
+ ob = new Observer(value);
+ }
+ if (asRootData && ob) {
+ ob.vmCount++;
+ }
+ return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive (
+ obj,
+ key,
+ val,
+ customSetter,
+ shallow
+) {
+ var dep = new Dep();
+
+ var property = Object.getOwnPropertyDescriptor(obj, key);
+ if (property && property.configurable === false) {
+ return
+ }
+
+ // cater for pre-defined getter/setters
+ var getter = property && property.get;
+ var setter = property && property.set;
+
+ var childOb = !shallow && observe(val);
+ Object.defineProperty(obj, key, {
+ enumerable: true,
+ configurable: true,
+ get: function reactiveGetter () {
+ var value = getter ? getter.call(obj) : val;
+ if (Dep.target) {
+ dep.depend();
+ if (childOb) {
+ childOb.dep.depend();
+ if (Array.isArray(value)) {
+ dependArray(value);
+ }
+ }
+ }
+ return value
+ },
+ set: function reactiveSetter (newVal) {
+ var value = getter ? getter.call(obj) : val;
+ /* eslint-disable no-self-compare */
+ if (newVal === value || (newVal !== newVal && value !== value)) {
+ return
+ }
+ /* eslint-enable no-self-compare */
+ if ("development" !== 'production' && customSetter) {
+ customSetter();
+ }
+ if (setter) {
+ setter.call(obj, newVal);
+ } else {
+ val = newVal;
+ }
+ childOb = !shallow && observe(newVal);
+ dep.notify();
+ }
+ });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+ if (Array.isArray(target) && isValidArrayIndex(key)) {
+ target.length = Math.max(target.length, key);
+ target.splice(key, 1, val);
+ return val
+ }
+ if (key in target && !(key in Object.prototype)) {
+ target[key] = val;
+ return val
+ }
+ var ob = (target).__ob__;
+ if (target._isVue || (ob && ob.vmCount)) {
+ "development" !== 'production' && warn(
+ 'Avoid adding reactive properties to a Vue instance or its root $data ' +
+ 'at runtime - declare it upfront in the data option.'
+ );
+ return val
+ }
+ if (!ob) {
+ target[key] = val;
+ return val
+ }
+ defineReactive(ob.value, key, val);
+ ob.dep.notify();
+ return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+ if (Array.isArray(target) && isValidArrayIndex(key)) {
+ target.splice(key, 1);
+ return
+ }
+ var ob = (target).__ob__;
+ if (target._isVue || (ob && ob.vmCount)) {
+ "development" !== 'production' && warn(
+ 'Avoid deleting properties on a Vue instance or its root $data ' +
+ '- just set it to null.'
+ );
+ return
+ }
+ if (!hasOwn(target, key)) {
+ return
+ }
+ delete target[key];
+ if (!ob) {
+ return
+ }
+ ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+ for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+ e = value[i];
+ e && e.__ob__ && e.__ob__.dep.depend();
+ if (Array.isArray(e)) {
+ dependArray(e);
+ }
+ }
+}
+
+/* */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+ strats.el = strats.propsData = function (parent, child, vm, key) {
+ if (!vm) {
+ warn(
+ "option \"" + key + "\" can only be used during instance " +
+ 'creation with the `new` keyword.'
+ );
+ }
+ return defaultStrat(parent, child)
+ };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+ if (!from) { return to }
+ var key, toVal, fromVal;
+ var keys = Object.keys(from);
+ for (var i = 0; i < keys.length; i++) {
+ key = keys[i];
+ toVal = to[key];
+ fromVal = from[key];
+ if (!hasOwn(to, key)) {
+ set(to, key, fromVal);
+ } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+ mergeData(toVal, fromVal);
+ }
+ }
+ return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+ parentVal,
+ childVal,
+ vm
+) {
+ if (!vm) {
+ // in a Vue.extend merge, both should be functions
+ if (!childVal) {
+ return parentVal
+ }
+ if (!parentVal) {
+ return childVal
+ }
+ // when parentVal & childVal are both present,
+ // we need to return a function that returns the
+ // merged result of both functions... no need to
+ // check if parentVal is a function here because
+ // it has to be a function to pass previous merges.
+ return function mergedDataFn () {
+ return mergeData(
+ typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+ typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+ )
+ }
+ } else {
+ return function mergedInstanceDataFn () {
+ // instance merge
+ var instanceData = typeof childVal === 'function'
+ ? childVal.call(vm, vm)
+ : childVal;
+ var defaultData = typeof parentVal === 'function'
+ ? parentVal.call(vm, vm)
+ : parentVal;
+ if (instanceData) {
+ return mergeData(instanceData, defaultData)
+ } else {
+ return defaultData
+ }
+ }
+ }
+}
+
+strats.data = function (
+ parentVal,
+ childVal,
+ vm
+) {
+ if (!vm) {
+ if (childVal && typeof childVal !== 'function') {
+ "development" !== 'production' && warn(
+ 'The "data" option should be a function ' +
+ 'that returns a per-instance value in component ' +
+ 'definitions.',
+ vm
+ );
+
+ return parentVal
+ }
+ return mergeDataOrFn(parentVal, childVal)
+ }
+
+ return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+ parentVal,
+ childVal
+) {
+ return childVal
+ ? parentVal
+ ? parentVal.concat(childVal)
+ : Array.isArray(childVal)
+ ? childVal
+ : [childVal]
+ : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+ strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+ parentVal,
+ childVal,
+ vm,
+ key
+) {
+ var res = Object.create(parentVal || null);
+ if (childVal) {
+ "development" !== 'production' && assertObjectType(key, childVal, vm);
+ return extend(res, childVal)
+ } else {
+ return res
+ }
+}
+
+ASSET_TYPES.forEach(function (type) {
+ strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+ parentVal,
+ childVal,
+ vm,
+ key
+) {
+ // work around Firefox's Object.prototype.watch...
+ if (parentVal === nativeWatch) { parentVal = undefined; }
+ if (childVal === nativeWatch) { childVal = undefined; }
+ /* istanbul ignore if */
+ if (!childVal) { return Object.create(parentVal || null) }
+ {
+ assertObjectType(key, childVal, vm);
+ }
+ if (!parentVal) { return childVal }
+ var ret = {};
+ extend(ret, parentVal);
+ for (var key$1 in childVal) {
+ var parent = ret[key$1];
+ var child = childVal[key$1];
+ if (parent && !Array.isArray(parent)) {
+ parent = [parent];
+ }
+ ret[key$1] = parent
+ ? parent.concat(child)
+ : Array.isArray(child) ? child : [child];
+ }
+ return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+ parentVal,
+ childVal,
+ vm,
+ key
+) {
+ if (childVal && "development" !== 'production') {
+ assertObjectType(key, childVal, vm);
+ }
+ if (!parentVal) { return childVal }
+ var ret = Object.create(null);
+ extend(ret, parentVal);
+ if (childVal) { extend(ret, childVal); }
+ return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+ return childVal === undefined
+ ? parentVal
+ : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+ for (var key in options.components) {
+ validateComponentName(key);
+ }
+}
+
+function validateComponentName (name) {
+ if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+ warn(
+ 'Invalid component name: "' + name + '". Component names ' +
+ 'can only contain alphanumeric characters and the hyphen, ' +
+ 'and must start with a letter.'
+ );
+ }
+ if (isBuiltInTag(name) || config.isReservedTag(name)) {
+ warn(
+ 'Do not use built-in or reserved HTML elements as component ' +
+ 'id: ' + name
+ );
+ }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+ var props = options.props;
+ if (!props) { return }
+ var res = {};
+ var i, val, name;
+ if (Array.isArray(props)) {
+ i = props.length;
+ while (i--) {
+ val = props[i];
+ if (typeof val === 'string') {
+ name = camelize(val);
+ res[name] = { type: null };
+ } else {
+ warn('props must be strings when using array syntax.');
+ }
+ }
+ } else if (isPlainObject(props)) {
+ for (var key in props) {
+ val = props[key];
+ name = camelize(key);
+ res[name] = isPlainObject(val)
+ ? val
+ : { type: val };
+ }
+ } else {
+ warn(
+ "Invalid value for option \"props\": expected an Array or an Object, " +
+ "but got " + (toRawType(props)) + ".",
+ vm
+ );
+ }
+ options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+ var inject = options.inject;
+ if (!inject) { return }
+ var normalized = options.inject = {};
+ if (Array.isArray(inject)) {
+ for (var i = 0; i < inject.length; i++) {
+ normalized[inject[i]] = { from: inject[i] };
+ }
+ } else if (isPlainObject(inject)) {
+ for (var key in inject) {
+ var val = inject[key];
+ normalized[key] = isPlainObject(val)
+ ? extend({ from: key }, val)
+ : { from: val };
+ }
+ } else {
+ warn(
+ "Invalid value for option \"inject\": expected an Array or an Object, " +
+ "but got " + (toRawType(inject)) + ".",
+ vm
+ );
+ }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+ var dirs = options.directives;
+ if (dirs) {
+ for (var key in dirs) {
+ var def = dirs[key];
+ if (typeof def === 'function') {
+ dirs[key] = { bind: def, update: def };
+ }
+ }
+ }
+}
+
+function assertObjectType (name, value, vm) {
+ if (!isPlainObject(value)) {
+ warn(
+ "Invalid value for option \"" + name + "\": expected an Object, " +
+ "but got " + (toRawType(value)) + ".",
+ vm
+ );
+ }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+ parent,
+ child,
+ vm
+) {
+ {
+ checkComponents(child);
+ }
+
+ if (typeof child === 'function') {
+ child = child.options;
+ }
+
+ normalizeProps(child, vm);
+ normalizeInject(child, vm);
+ normalizeDirectives(child);
+ var extendsFrom = child.extends;
+ if (extendsFrom) {
+ parent = mergeOptions(parent, extendsFrom, vm);
+ }
+ if (child.mixins) {
+ for (var i = 0, l = child.mixins.length; i < l; i++) {
+ parent = mergeOptions(parent, child.mixins[i], vm);
+ }
+ }
+ var options = {};
+ var key;
+ for (key in parent) {
+ mergeField(key);
+ }
+ for (key in child) {
+ if (!hasOwn(parent, key)) {
+ mergeField(key);
+ }
+ }
+ function mergeField (key) {
+ var strat = strats[key] || defaultStrat;
+ options[key] = strat(parent[key], child[key], vm, key);
+ }
+ return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+ options,
+ type,
+ id,
+ warnMissing
+) {
+ /* istanbul ignore if */
+ if (typeof id !== 'string') {
+ return
+ }
+ var assets = options[type];
+ // check local registration variations first
+ if (hasOwn(assets, id)) { return assets[id] }
+ var camelizedId = camelize(id);
+ if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+ var PascalCaseId = capitalize(camelizedId);
+ if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+ // fallback to prototype chain
+ var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+ if ("development" !== 'production' && warnMissing && !res) {
+ warn(
+ 'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+ options
+ );
+ }
+ return res
+}
+
+/* */
+
+function validateProp (
+ key,
+ propOptions,
+ propsData,
+ vm
+) {
+ var prop = propOptions[key];
+ var absent = !hasOwn(propsData, key);
+ var value = propsData[key];
+ // handle boolean props
+ if (isType(Boolean, prop.type)) {
+ if (absent && !hasOwn(prop, 'default')) {
+ value = false;
+ } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
+ value = true;
+ }
+ }
+ // check default value
+ if (value === undefined) {
+ value = getPropDefaultValue(vm, prop, key);
+ // since the default value is a fresh copy,
+ // make sure to observe it.
+ var prevShouldConvert = observerState.shouldConvert;
+ observerState.shouldConvert = true;
+ observe(value);
+ observerState.shouldConvert = prevShouldConvert;
+ }
+ {
+ assertProp(prop, key, value, vm, absent);
+ }
+ return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+ // no default, return undefined
+ if (!hasOwn(prop, 'default')) {
+ return undefined
+ }
+ var def = prop.default;
+ // warn against non-factory defaults for Object & Array
+ if ("development" !== 'production' && isObject(def)) {
+ warn(
+ 'Invalid default value for prop "' + key + '": ' +
+ 'Props with type Object/Array must use a factory function ' +
+ 'to return the default value.',
+ vm
+ );
+ }
+ // the raw prop value was also undefined from previous render,
+ // return previous default value to avoid unnecessary watcher trigger
+ if (vm && vm.$options.propsData &&
+ vm.$options.propsData[key] === undefined &&
+ vm._props[key] !== undefined
+ ) {
+ return vm._props[key]
+ }
+ // call factory function for non-Function types
+ // a value is Function if its prototype is function even across different execution context
+ return typeof def === 'function' && getType(prop.type) !== 'Function'
+ ? def.call(vm)
+ : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+ prop,
+ name,
+ value,
+ vm,
+ absent
+) {
+ if (prop.required && absent) {
+ warn(
+ 'Missing required prop: "' + name + '"',
+ vm
+ );
+ return
+ }
+ if (value == null && !prop.required) {
+ return
+ }
+ var type = prop.type;
+ var valid = !type || type === true;
+ var expectedTypes = [];
+ if (type) {
+ if (!Array.isArray(type)) {
+ type = [type];
+ }
+ for (var i = 0; i < type.length && !valid; i++) {
+ var assertedType = assertType(value, type[i]);
+ expectedTypes.push(assertedType.expectedType || '');
+ valid = assertedType.valid;
+ }
+ }
+ if (!valid) {
+ warn(
+ "Invalid prop: type check failed for prop \"" + name + "\"." +
+ " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+ ", got " + (toRawType(value)) + ".",
+ vm
+ );
+ return
+ }
+ var validator = prop.validator;
+ if (validator) {
+ if (!validator(value)) {
+ warn(
+ 'Invalid prop: custom validator check failed for prop "' + name + '".',
+ vm
+ );
+ }
+ }
+}
+
+var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+ var valid;
+ var expectedType = getType(type);
+ if (simpleCheckRE.test(expectedType)) {
+ var t = typeof value;
+ valid = t === expectedType.toLowerCase();
+ // for primitive wrapper objects
+ if (!valid && t === 'object') {
+ valid = value instanceof type;
+ }
+ } else if (expectedType === 'Object') {
+ valid = isPlainObject(value);
+ } else if (expectedType === 'Array') {
+ valid = Array.isArray(value);
+ } else {
+ valid = value instanceof type;
+ }
+ return {
+ valid: valid,
+ expectedType: expectedType
+ }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+ var match = fn && fn.toString().match(/^\s*function (\w+)/);
+ return match ? match[1] : ''
+}
+
+function isType (type, fn) {
+ if (!Array.isArray(fn)) {
+ return getType(fn) === getType(type)
+ }
+ for (var i = 0, len = fn.length; i < len; i++) {
+ if (getType(fn[i]) === getType(type)) {
+ return true
+ }
+ }
+ /* istanbul ignore next */
+ return false
+}
+
+/* */
+
+function handleError (err, vm, info) {
+ if (vm) {
+ var cur = vm;
+ while ((cur = cur.$parent)) {
+ var hooks = cur.$options.errorCaptured;
+ if (hooks) {
+ for (var i = 0; i < hooks.length; i++) {
+ try {
+ var capture = hooks[i].call(cur, err, vm, info) === false;
+ if (capture) { return }
+ } catch (e) {
+ globalHandleError(e, cur, 'errorCaptured hook');
+ }
+ }
+ }
+ }
+ }
+ globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+ if (config.errorHandler) {
+ try {
+ return config.errorHandler.call(null, err, vm, info)
+ } catch (e) {
+ logError(e, null, 'config.errorHandler');
+ }
+ }
+ logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+ {
+ warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+ }
+ /* istanbul ignore else */
+ if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+ console.error(err);
+ } else {
+ throw err
+ }
+}
+
+/* */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+ pending = false;
+ var copies = callbacks.slice(0);
+ callbacks.length = 0;
+ for (var i = 0; i < copies.length; i++) {
+ copies[i]();
+ }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+ macroTimerFunc = function () {
+ setImmediate(flushCallbacks);
+ };
+} else if (typeof MessageChannel !== 'undefined' && (
+ isNative(MessageChannel) ||
+ // PhantomJS
+ MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+ var channel = new MessageChannel();
+ var port = channel.port2;
+ channel.port1.onmessage = flushCallbacks;
+ macroTimerFunc = function () {
+ port.postMessage(1);
+ };
+} else {
+ /* istanbul ignore next */
+ macroTimerFunc = function () {
+ setTimeout(flushCallbacks, 0);
+ };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+ var p = Promise.resolve();
+ microTimerFunc = function () {
+ p.then(flushCallbacks);
+ // in problematic UIWebViews, Promise.then doesn't completely break, but
+ // it can get stuck in a weird state where callbacks are pushed into the
+ // microtask queue but the queue isn't being flushed, until the browser
+ // needs to do some other work, e.g. handle a timer. Therefore we can
+ // "force" the microtask queue to be flushed by adding an empty timer.
+ if (isIOS) { setTimeout(noop); }
+ };
+} else {
+ // fallback to macro
+ microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+ return fn._withTask || (fn._withTask = function () {
+ useMacroTask = true;
+ var res = fn.apply(null, arguments);
+ useMacroTask = false;
+ return res
+ })
+}
+
+function nextTick (cb, ctx) {
+ var _resolve;
+ callbacks.push(function () {
+ if (cb) {
+ try {
+ cb.call(ctx);
+ } catch (e) {
+ handleError(e, ctx, 'nextTick');
+ }
+ } else if (_resolve) {
+ _resolve(ctx);
+ }
+ });
+ if (!pending) {
+ pending = true;
+ if (useMacroTask) {
+ macroTimerFunc();
+ } else {
+ microTimerFunc();
+ }
+ }
+ // $flow-disable-line
+ if (!cb && typeof Promise !== 'undefined') {
+ return new Promise(function (resolve) {
+ _resolve = resolve;
+ })
+ }
+}
+
+/* */
+
+var mark;
+var measure;
+
+{
+ var perf = inBrowser && window.performance;
+ /* istanbul ignore if */
+ if (
+ perf &&
+ perf.mark &&
+ perf.measure &&
+ perf.clearMarks &&
+ perf.clearMeasures
+ ) {
+ mark = function (tag) { return perf.mark(tag); };
+ measure = function (name, startTag, endTag) {
+ perf.measure(name, startTag, endTag);
+ perf.clearMarks(startTag);
+ perf.clearMarks(endTag);
+ perf.clearMeasures(name);
+ };
+ }
+}
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+var initProxy;
+
+{
+ var allowedGlobals = makeMap(
+ 'Infinity,undefined,NaN,isFinite,isNaN,' +
+ 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+ 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+ 'require' // for Webpack/Browserify
+ );
+
+ var warnNonPresent = function (target, key) {
+ warn(
+ "Property or method \"" + key + "\" is not defined on the instance but " +
+ 'referenced during render. Make sure that this property is reactive, ' +
+ 'either in the data option, or for class-based components, by ' +
+ 'initializing the property. ' +
+ 'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+ target
+ );
+ };
+
+ var hasProxy =
+ typeof Proxy !== 'undefined' &&
+ Proxy.toString().match(/native code/);
+
+ if (hasProxy) {
+ var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+ config.keyCodes = new Proxy(config.keyCodes, {
+ set: function set (target, key, value) {
+ if (isBuiltInModifier(key)) {
+ warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+ return false
+ } else {
+ target[key] = value;
+ return true
+ }
+ }
+ });
+ }
+
+ var hasHandler = {
+ has: function has (target, key) {
+ var has = key in target;
+ var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+ if (!has && !isAllowed) {
+ warnNonPresent(target, key);
+ }
+ return has || !isAllowed
+ }
+ };
+
+ var getHandler = {
+ get: function get (target, key) {
+ if (typeof key === 'string' && !(key in target)) {
+ warnNonPresent(target, key);
+ }
+ return target[key]
+ }
+ };
+
+ initProxy = function initProxy (vm) {
+ if (hasProxy) {
+ // determine which proxy handler to use
+ var options = vm.$options;
+ var handlers = options.render && options.render._withStripped
+ ? getHandler
+ : hasHandler;
+ vm._renderProxy = new Proxy(vm, handlers);
+ } else {
+ vm._renderProxy = vm;
+ }
+ };
+}
+
+/* */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+ _traverse(val, seenObjects);
+ seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+ var i, keys;
+ var isA = Array.isArray(val);
+ if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+ return
+ }
+ if (val.__ob__) {
+ var depId = val.__ob__.dep.id;
+ if (seen.has(depId)) {
+ return
+ }
+ seen.add(depId);
+ }
+ if (isA) {
+ i = val.length;
+ while (i--) { _traverse(val[i], seen); }
+ } else {
+ keys = Object.keys(val);
+ i = keys.length;
+ while (i--) { _traverse(val[keys[i]], seen); }
+ }
+}
+
+/* */
+
+var normalizeEvent = cached(function (name) {
+ var passive = name.charAt(0) === '&';
+ name = passive ? name.slice(1) : name;
+ var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+ name = once$$1 ? name.slice(1) : name;
+ var capture = name.charAt(0) === '!';
+ name = capture ? name.slice(1) : name;
+ return {
+ name: name,
+ once: once$$1,
+ capture: capture,
+ passive: passive
+ }
+});
+
+function createFnInvoker (fns) {
+ function invoker () {
+ var arguments$1 = arguments;
+
+ var fns = invoker.fns;
+ if (Array.isArray(fns)) {
+ var cloned = fns.slice();
+ for (var i = 0; i < cloned.length; i++) {
+ cloned[i].apply(null, arguments$1);
+ }
+ } else {
+ // return handler return value for single handlers
+ return fns.apply(null, arguments)
+ }
+ }
+ invoker.fns = fns;
+ return invoker
+}
+
+function updateListeners (
+ on,
+ oldOn,
+ add,
+ remove$$1,
+ vm
+) {
+ var name, def, cur, old, event;
+ for (name in on) {
+ def = cur = on[name];
+ old = oldOn[name];
+ event = normalizeEvent(name);
+ /* istanbul ignore if */
+ if (isUndef(cur)) {
+ "development" !== 'production' && warn(
+ "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+ vm
+ );
+ } else if (isUndef(old)) {
+ if (isUndef(cur.fns)) {
+ cur = on[name] = createFnInvoker(cur);
+ }
+ add(event.name, cur, event.once, event.capture, event.passive, event.params);
+ } else if (cur !== old) {
+ old.fns = cur;
+ on[name] = old;
+ }
+ }
+ for (name in oldOn) {
+ if (isUndef(on[name])) {
+ event = normalizeEvent(name);
+ remove$$1(event.name, oldOn[name], event.capture);
+ }
+ }
+}
+
+/* */
+
+function mergeVNodeHook (def, hookKey, hook) {
+ if (def instanceof VNode) {
+ def = def.data.hook || (def.data.hook = {});
+ }
+ var invoker;
+ var oldHook = def[hookKey];
+
+ function wrappedHook () {
+ hook.apply(this, arguments);
+ // important: remove merged hook to ensure it's called only once
+ // and prevent memory leak
+ remove(invoker.fns, wrappedHook);
+ }
+
+ if (isUndef(oldHook)) {
+ // no existing hook
+ invoker = createFnInvoker([wrappedHook]);
+ } else {
+ /* istanbul ignore if */
+ if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+ // already a merged invoker
+ invoker = oldHook;
+ invoker.fns.push(wrappedHook);
+ } else {
+ // existing plain hook
+ invoker = createFnInvoker([oldHook, wrappedHook]);
+ }
+ }
+
+ invoker.merged = true;
+ def[hookKey] = invoker;
+}
+
+/* */
+
+function extractPropsFromVNodeData (
+ data,
+ Ctor,
+ tag
+) {
+ // we are only extracting raw values here.
+ // validation and default values are handled in the child
+ // component itself.
+ var propOptions = Ctor.options.props;
+ if (isUndef(propOptions)) {
+ return
+ }
+ var res = {};
+ var attrs = data.attrs;
+ var props = data.props;
+ if (isDef(attrs) || isDef(props)) {
+ for (var key in propOptions) {
+ var altKey = hyphenate(key);
+ {
+ var keyInLowerCase = key.toLowerCase();
+ if (
+ key !== keyInLowerCase &&
+ attrs && hasOwn(attrs, keyInLowerCase)
+ ) {
+ tip(
+ "Prop \"" + keyInLowerCase + "\" is passed to component " +
+ (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+ " \"" + key + "\". " +
+ "Note that HTML attributes are case-insensitive and camelCased " +
+ "props need to use their kebab-case equivalents when using in-DOM " +
+ "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+ );
+ }
+ }
+ checkProp(res, props, key, altKey, true) ||
+ checkProp(res, attrs, key, altKey, false);
+ }
+ }
+ return res
+}
+
+function checkProp (
+ res,
+ hash,
+ key,
+ altKey,
+ preserve
+) {
+ if (isDef(hash)) {
+ if (hasOwn(hash, key)) {
+ res[key] = hash[key];
+ if (!preserve) {
+ delete hash[key];
+ }
+ return true
+ } else if (hasOwn(hash, altKey)) {
+ res[key] = hash[altKey];
+ if (!preserve) {
+ delete hash[altKey];
+ }
+ return true
+ }
+ }
+ return false
+}
+
+/* */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+ for (var i = 0; i < children.length; i++) {
+ if (Array.isArray(children[i])) {
+ return Array.prototype.concat.apply([], children)
+ }
+ }
+ return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. , , v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+ return isPrimitive(children)
+ ? [createTextVNode(children)]
+ : Array.isArray(children)
+ ? normalizeArrayChildren(children)
+ : undefined
+}
+
+function isTextNode (node) {
+ return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+ var res = [];
+ var i, c, lastIndex, last;
+ for (i = 0; i < children.length; i++) {
+ c = children[i];
+ if (isUndef(c) || typeof c === 'boolean') { continue }
+ lastIndex = res.length - 1;
+ last = res[lastIndex];
+ // nested
+ if (Array.isArray(c)) {
+ if (c.length > 0) {
+ c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+ // merge adjacent text nodes
+ if (isTextNode(c[0]) && isTextNode(last)) {
+ res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+ c.shift();
+ }
+ res.push.apply(res, c);
+ }
+ } else if (isPrimitive(c)) {
+ if (isTextNode(last)) {
+ // merge adjacent text nodes
+ // this is necessary for SSR hydration because text nodes are
+ // essentially merged when rendered to HTML strings
+ res[lastIndex] = createTextVNode(last.text + c);
+ } else if (c !== '') {
+ // convert primitive to vnode
+ res.push(createTextVNode(c));
+ }
+ } else {
+ if (isTextNode(c) && isTextNode(last)) {
+ // merge adjacent text nodes
+ res[lastIndex] = createTextVNode(last.text + c.text);
+ } else {
+ // default key for nested array children (likely generated by v-for)
+ if (isTrue(children._isVList) &&
+ isDef(c.tag) &&
+ isUndef(c.key) &&
+ isDef(nestedIndex)) {
+ c.key = "__vlist" + nestedIndex + "_" + i + "__";
+ }
+ res.push(c);
+ }
+ }
+ }
+ return res
+}
+
+/* */
+
+function ensureCtor (comp, base) {
+ if (
+ comp.__esModule ||
+ (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+ ) {
+ comp = comp.default;
+ }
+ return isObject(comp)
+ ? base.extend(comp)
+ : comp
+}
+
+function createAsyncPlaceholder (
+ factory,
+ data,
+ context,
+ children,
+ tag
+) {
+ var node = createEmptyVNode();
+ node.asyncFactory = factory;
+ node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+ return node
+}
+
+function resolveAsyncComponent (
+ factory,
+ baseCtor,
+ context
+) {
+ if (isTrue(factory.error) && isDef(factory.errorComp)) {
+ return factory.errorComp
+ }
+
+ if (isDef(factory.resolved)) {
+ return factory.resolved
+ }
+
+ if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+ return factory.loadingComp
+ }
+
+ if (isDef(factory.contexts)) {
+ // already pending
+ factory.contexts.push(context);
+ } else {
+ var contexts = factory.contexts = [context];
+ var sync = true;
+
+ var forceRender = function () {
+ for (var i = 0, l = contexts.length; i < l; i++) {
+ contexts[i].$forceUpdate();
+ }
+ };
+
+ var resolve = once(function (res) {
+ // cache resolved
+ factory.resolved = ensureCtor(res, baseCtor);
+ // invoke callbacks only if this is not a synchronous resolve
+ // (async resolves are shimmed as synchronous during SSR)
+ if (!sync) {
+ forceRender();
+ }
+ });
+
+ var reject = once(function (reason) {
+ "development" !== 'production' && warn(
+ "Failed to resolve async component: " + (String(factory)) +
+ (reason ? ("\nReason: " + reason) : '')
+ );
+ if (isDef(factory.errorComp)) {
+ factory.error = true;
+ forceRender();
+ }
+ });
+
+ var res = factory(resolve, reject);
+
+ if (isObject(res)) {
+ if (typeof res.then === 'function') {
+ // () => Promise
+ if (isUndef(factory.resolved)) {
+ res.then(resolve, reject);
+ }
+ } else if (isDef(res.component) && typeof res.component.then === 'function') {
+ res.component.then(resolve, reject);
+
+ if (isDef(res.error)) {
+ factory.errorComp = ensureCtor(res.error, baseCtor);
+ }
+
+ if (isDef(res.loading)) {
+ factory.loadingComp = ensureCtor(res.loading, baseCtor);
+ if (res.delay === 0) {
+ factory.loading = true;
+ } else {
+ setTimeout(function () {
+ if (isUndef(factory.resolved) && isUndef(factory.error)) {
+ factory.loading = true;
+ forceRender();
+ }
+ }, res.delay || 200);
+ }
+ }
+
+ if (isDef(res.timeout)) {
+ setTimeout(function () {
+ if (isUndef(factory.resolved)) {
+ reject(
+ "timeout (" + (res.timeout) + "ms)"
+ );
+ }
+ }, res.timeout);
+ }
+ }
+ }
+
+ sync = false;
+ // return in case resolved synchronously
+ return factory.loading
+ ? factory.loadingComp
+ : factory.resolved
+ }
+}
+
+/* */
+
+function isAsyncPlaceholder (node) {
+ return node.isComment && node.asyncFactory
+}
+
+/* */
+
+function getFirstComponentChild (children) {
+ if (Array.isArray(children)) {
+ for (var i = 0; i < children.length; i++) {
+ var c = children[i];
+ if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+ return c
+ }
+ }
+ }
+}
+
+/* */
+
+/* */
+
+function initEvents (vm) {
+ vm._events = Object.create(null);
+ vm._hasHookEvent = false;
+ // init parent attached events
+ var listeners = vm.$options._parentListeners;
+ if (listeners) {
+ updateComponentListeners(vm, listeners);
+ }
+}
+
+var target;
+
+function add (event, fn, once) {
+ if (once) {
+ target.$once(event, fn);
+ } else {
+ target.$on(event, fn);
+ }
+}
+
+function remove$1 (event, fn) {
+ target.$off(event, fn);
+}
+
+function updateComponentListeners (
+ vm,
+ listeners,
+ oldListeners
+) {
+ target = vm;
+ updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+ target = undefined;
+}
+
+function eventsMixin (Vue) {
+ var hookRE = /^hook:/;
+ Vue.prototype.$on = function (event, fn) {
+ var this$1 = this;
+
+ var vm = this;
+ if (Array.isArray(event)) {
+ for (var i = 0, l = event.length; i < l; i++) {
+ this$1.$on(event[i], fn);
+ }
+ } else {
+ (vm._events[event] || (vm._events[event] = [])).push(fn);
+ // optimize hook:event cost by using a boolean flag marked at registration
+ // instead of a hash lookup
+ if (hookRE.test(event)) {
+ vm._hasHookEvent = true;
+ }
+ }
+ return vm
+ };
+
+ Vue.prototype.$once = function (event, fn) {
+ var vm = this;
+ function on () {
+ vm.$off(event, on);
+ fn.apply(vm, arguments);
+ }
+ on.fn = fn;
+ vm.$on(event, on);
+ return vm
+ };
+
+ Vue.prototype.$off = function (event, fn) {
+ var this$1 = this;
+
+ var vm = this;
+ // all
+ if (!arguments.length) {
+ vm._events = Object.create(null);
+ return vm
+ }
+ // array of events
+ if (Array.isArray(event)) {
+ for (var i = 0, l = event.length; i < l; i++) {
+ this$1.$off(event[i], fn);
+ }
+ return vm
+ }
+ // specific event
+ var cbs = vm._events[event];
+ if (!cbs) {
+ return vm
+ }
+ if (!fn) {
+ vm._events[event] = null;
+ return vm
+ }
+ if (fn) {
+ // specific handler
+ var cb;
+ var i$1 = cbs.length;
+ while (i$1--) {
+ cb = cbs[i$1];
+ if (cb === fn || cb.fn === fn) {
+ cbs.splice(i$1, 1);
+ break
+ }
+ }
+ }
+ return vm
+ };
+
+ Vue.prototype.$emit = function (event) {
+ var vm = this;
+ {
+ var lowerCaseEvent = event.toLowerCase();
+ if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+ tip(
+ "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+ (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+ "Note that HTML attributes are case-insensitive and you cannot use " +
+ "v-on to listen to camelCase events when using in-DOM templates. " +
+ "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+ );
+ }
+ }
+ var cbs = vm._events[event];
+ if (cbs) {
+ cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+ var args = toArray(arguments, 1);
+ for (var i = 0, l = cbs.length; i < l; i++) {
+ try {
+ cbs[i].apply(vm, args);
+ } catch (e) {
+ handleError(e, vm, ("event handler for \"" + event + "\""));
+ }
+ }
+ }
+ return vm
+ };
+}
+
+/* */
+
+
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+ children,
+ context
+) {
+ var slots = {};
+ if (!children) {
+ return slots
+ }
+ for (var i = 0, l = children.length; i < l; i++) {
+ var child = children[i];
+ var data = child.data;
+ // remove slot attribute if the node is resolved as a Vue slot node
+ if (data && data.attrs && data.attrs.slot) {
+ delete data.attrs.slot;
+ }
+ // named slots should only be respected if the vnode was rendered in the
+ // same context.
+ if ((child.context === context || child.fnContext === context) &&
+ data && data.slot != null
+ ) {
+ var name = data.slot;
+ var slot = (slots[name] || (slots[name] = []));
+ if (child.tag === 'template') {
+ slot.push.apply(slot, child.children || []);
+ } else {
+ slot.push(child);
+ }
+ } else {
+ (slots.default || (slots.default = [])).push(child);
+ }
+ }
+ // ignore slots that contains only whitespace
+ for (var name$1 in slots) {
+ if (slots[name$1].every(isWhitespace)) {
+ delete slots[name$1];
+ }
+ }
+ return slots
+}
+
+function isWhitespace (node) {
+ return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+ fns, // see flow/vnode
+ res
+) {
+ res = res || {};
+ for (var i = 0; i < fns.length; i++) {
+ if (Array.isArray(fns[i])) {
+ resolveScopedSlots(fns[i], res);
+ } else {
+ res[fns[i].key] = fns[i].fn;
+ }
+ }
+ return res
+}
+
+/* */
+
+var activeInstance = null;
+var isUpdatingChildComponent = false;
+
+function initLifecycle (vm) {
+ var options = vm.$options;
+
+ // locate first non-abstract parent
+ var parent = options.parent;
+ if (parent && !options.abstract) {
+ while (parent.$options.abstract && parent.$parent) {
+ parent = parent.$parent;
+ }
+ parent.$children.push(vm);
+ }
+
+ vm.$parent = parent;
+ vm.$root = parent ? parent.$root : vm;
+
+ vm.$children = [];
+ vm.$refs = {};
+
+ vm._watcher = null;
+ vm._inactive = null;
+ vm._directInactive = false;
+ vm._isMounted = false;
+ vm._isDestroyed = false;
+ vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+ Vue.prototype._update = function (vnode, hydrating) {
+ var vm = this;
+ if (vm._isMounted) {
+ callHook(vm, 'beforeUpdate');
+ }
+ var prevEl = vm.$el;
+ var prevVnode = vm._vnode;
+ var prevActiveInstance = activeInstance;
+ activeInstance = vm;
+ vm._vnode = vnode;
+ // Vue.prototype.__patch__ is injected in entry points
+ // based on the rendering backend used.
+ if (!prevVnode) {
+ // initial render
+ vm.$el = vm.__patch__(
+ vm.$el, vnode, hydrating, false /* removeOnly */,
+ vm.$options._parentElm,
+ vm.$options._refElm
+ );
+ // no need for the ref nodes after initial patch
+ // this prevents keeping a detached DOM tree in memory (#5851)
+ vm.$options._parentElm = vm.$options._refElm = null;
+ } else {
+ // updates
+ vm.$el = vm.__patch__(prevVnode, vnode);
+ }
+ activeInstance = prevActiveInstance;
+ // update __vue__ reference
+ if (prevEl) {
+ prevEl.__vue__ = null;
+ }
+ if (vm.$el) {
+ vm.$el.__vue__ = vm;
+ }
+ // if parent is an HOC, update its $el as well
+ if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+ vm.$parent.$el = vm.$el;
+ }
+ // updated hook is called by the scheduler to ensure that children are
+ // updated in a parent's updated hook.
+ };
+
+ Vue.prototype.$forceUpdate = function () {
+ var vm = this;
+ if (vm._watcher) {
+ vm._watcher.update();
+ }
+ };
+
+ Vue.prototype.$destroy = function () {
+ var vm = this;
+ if (vm._isBeingDestroyed) {
+ return
+ }
+ callHook(vm, 'beforeDestroy');
+ vm._isBeingDestroyed = true;
+ // remove self from parent
+ var parent = vm.$parent;
+ if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+ remove(parent.$children, vm);
+ }
+ // teardown watchers
+ if (vm._watcher) {
+ vm._watcher.teardown();
+ }
+ var i = vm._watchers.length;
+ while (i--) {
+ vm._watchers[i].teardown();
+ }
+ // remove reference from data ob
+ // frozen object may not have observer.
+ if (vm._data.__ob__) {
+ vm._data.__ob__.vmCount--;
+ }
+ // call the last hook...
+ vm._isDestroyed = true;
+ // invoke destroy hooks on current rendered tree
+ vm.__patch__(vm._vnode, null);
+ // fire destroyed hook
+ callHook(vm, 'destroyed');
+ // turn off all instance listeners.
+ vm.$off();
+ // remove __vue__ reference
+ if (vm.$el) {
+ vm.$el.__vue__ = null;
+ }
+ // release circular reference (#6759)
+ if (vm.$vnode) {
+ vm.$vnode.parent = null;
+ }
+ };
+}
+
+function mountComponent (
+ vm,
+ el,
+ hydrating
+) {
+ vm.$el = el;
+ if (!vm.$options.render) {
+ vm.$options.render = createEmptyVNode;
+ {
+ /* istanbul ignore if */
+ if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+ vm.$options.el || el) {
+ warn(
+ 'You are using the runtime-only build of Vue where the template ' +
+ 'compiler is not available. Either pre-compile the templates into ' +
+ 'render functions, or use the compiler-included build.',
+ vm
+ );
+ } else {
+ warn(
+ 'Failed to mount component: template or render function not defined.',
+ vm
+ );
+ }
+ }
+ }
+ callHook(vm, 'beforeMount');
+
+ var updateComponent;
+ /* istanbul ignore if */
+ if ("development" !== 'production' && config.performance && mark) {
+ updateComponent = function () {
+ var name = vm._name;
+ var id = vm._uid;
+ var startTag = "vue-perf-start:" + id;
+ var endTag = "vue-perf-end:" + id;
+
+ mark(startTag);
+ var vnode = vm._render();
+ mark(endTag);
+ measure(("vue " + name + " render"), startTag, endTag);
+
+ mark(startTag);
+ vm._update(vnode, hydrating);
+ mark(endTag);
+ measure(("vue " + name + " patch"), startTag, endTag);
+ };
+ } else {
+ updateComponent = function () {
+ vm._update(vm._render(), hydrating);
+ };
+ }
+
+ // we set this to vm._watcher inside the watcher's constructor
+ // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+ // component's mounted hook), which relies on vm._watcher being already defined
+ new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+ hydrating = false;
+
+ // manually mounted instance, call mounted on self
+ // mounted is called for render-created child components in its inserted hook
+ if (vm.$vnode == null) {
+ vm._isMounted = true;
+ callHook(vm, 'mounted');
+ }
+ return vm
+}
+
+function updateChildComponent (
+ vm,
+ propsData,
+ listeners,
+ parentVnode,
+ renderChildren
+) {
+ {
+ isUpdatingChildComponent = true;
+ }
+
+ // determine whether component has slot children
+ // we need to do this before overwriting $options._renderChildren
+ var hasChildren = !!(
+ renderChildren || // has new static slots
+ vm.$options._renderChildren || // has old static slots
+ parentVnode.data.scopedSlots || // has new scoped slots
+ vm.$scopedSlots !== emptyObject // has old scoped slots
+ );
+
+ vm.$options._parentVnode = parentVnode;
+ vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+ if (vm._vnode) { // update child tree's parent
+ vm._vnode.parent = parentVnode;
+ }
+ vm.$options._renderChildren = renderChildren;
+
+ // update $attrs and $listeners hash
+ // these are also reactive so they may trigger child update if the child
+ // used them during render
+ vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+ vm.$listeners = listeners || emptyObject;
+
+ // update props
+ if (propsData && vm.$options.props) {
+ observerState.shouldConvert = false;
+ var props = vm._props;
+ var propKeys = vm.$options._propKeys || [];
+ for (var i = 0; i < propKeys.length; i++) {
+ var key = propKeys[i];
+ props[key] = validateProp(key, vm.$options.props, propsData, vm);
+ }
+ observerState.shouldConvert = true;
+ // keep a copy of raw propsData
+ vm.$options.propsData = propsData;
+ }
+
+ // update listeners
+ if (listeners) {
+ var oldListeners = vm.$options._parentListeners;
+ vm.$options._parentListeners = listeners;
+ updateComponentListeners(vm, listeners, oldListeners);
+ }
+ // resolve slots + force update if has children
+ if (hasChildren) {
+ vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+ vm.$forceUpdate();
+ }
+
+ {
+ isUpdatingChildComponent = false;
+ }
+}
+
+function isInInactiveTree (vm) {
+ while (vm && (vm = vm.$parent)) {
+ if (vm._inactive) { return true }
+ }
+ return false
+}
+
+function activateChildComponent (vm, direct) {
+ if (direct) {
+ vm._directInactive = false;
+ if (isInInactiveTree(vm)) {
+ return
+ }
+ } else if (vm._directInactive) {
+ return
+ }
+ if (vm._inactive || vm._inactive === null) {
+ vm._inactive = false;
+ for (var i = 0; i < vm.$children.length; i++) {
+ activateChildComponent(vm.$children[i]);
+ }
+ callHook(vm, 'activated');
+ }
+}
+
+function deactivateChildComponent (vm, direct) {
+ if (direct) {
+ vm._directInactive = true;
+ if (isInInactiveTree(vm)) {
+ return
+ }
+ }
+ if (!vm._inactive) {
+ vm._inactive = true;
+ for (var i = 0; i < vm.$children.length; i++) {
+ deactivateChildComponent(vm.$children[i]);
+ }
+ callHook(vm, 'deactivated');
+ }
+}
+
+function callHook (vm, hook) {
+ var handlers = vm.$options[hook];
+ if (handlers) {
+ for (var i = 0, j = handlers.length; i < j; i++) {
+ try {
+ handlers[i].call(vm);
+ } catch (e) {
+ handleError(e, vm, (hook + " hook"));
+ }
+ }
+ }
+ if (vm._hasHookEvent) {
+ vm.$emit('hook:' + hook);
+ }
+}
+
+/* */
+
+
+var MAX_UPDATE_COUNT = 100;
+
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+ index = queue.length = activatedChildren.length = 0;
+ has = {};
+ {
+ circular = {};
+ }
+ waiting = flushing = false;
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+ flushing = true;
+ var watcher, id;
+
+ // Sort queue before flush.
+ // This ensures that:
+ // 1. Components are updated from parent to child. (because parent is always
+ // created before the child)
+ // 2. A component's user watchers are run before its render watcher (because
+ // user watchers are created before the render watcher)
+ // 3. If a component is destroyed during a parent component's watcher run,
+ // its watchers can be skipped.
+ queue.sort(function (a, b) { return a.id - b.id; });
+
+ // do not cache length because more watchers might be pushed
+ // as we run existing watchers
+ for (index = 0; index < queue.length; index++) {
+ watcher = queue[index];
+ id = watcher.id;
+ has[id] = null;
+ watcher.run();
+ // in dev build, check and stop circular updates.
+ if ("development" !== 'production' && has[id] != null) {
+ circular[id] = (circular[id] || 0) + 1;
+ if (circular[id] > MAX_UPDATE_COUNT) {
+ warn(
+ 'You may have an infinite update loop ' + (
+ watcher.user
+ ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+ : "in a component render function."
+ ),
+ watcher.vm
+ );
+ break
+ }
+ }
+ }
+
+ // keep copies of post queues before resetting state
+ var activatedQueue = activatedChildren.slice();
+ var updatedQueue = queue.slice();
+
+ resetSchedulerState();
+
+ // call component updated and activated hooks
+ callActivatedHooks(activatedQueue);
+ callUpdatedHooks(updatedQueue);
+
+ // devtool hook
+ /* istanbul ignore if */
+ if (devtools && config.devtools) {
+ devtools.emit('flush');
+ }
+}
+
+function callUpdatedHooks (queue) {
+ var i = queue.length;
+ while (i--) {
+ var watcher = queue[i];
+ var vm = watcher.vm;
+ if (vm._watcher === watcher && vm._isMounted) {
+ callHook(vm, 'updated');
+ }
+ }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+ // setting _inactive to false here so that a render function can
+ // rely on checking whether it's in an inactive tree (e.g. router-view)
+ vm._inactive = false;
+ activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+ for (var i = 0; i < queue.length; i++) {
+ queue[i]._inactive = true;
+ activateChildComponent(queue[i], true /* true */);
+ }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+ var id = watcher.id;
+ if (has[id] == null) {
+ has[id] = true;
+ if (!flushing) {
+ queue.push(watcher);
+ } else {
+ // if already flushing, splice the watcher based on its id
+ // if already past its id, it will be run next immediately.
+ var i = queue.length - 1;
+ while (i > index && queue[i].id > watcher.id) {
+ i--;
+ }
+ queue.splice(i + 1, 0, watcher);
+ }
+ // queue the flush
+ if (!waiting) {
+ waiting = true;
+ nextTick(flushSchedulerQueue);
+ }
+ }
+}
+
+/* */
+
+var uid$2 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+ vm,
+ expOrFn,
+ cb,
+ options,
+ isRenderWatcher
+) {
+ this.vm = vm;
+ if (isRenderWatcher) {
+ vm._watcher = this;
+ }
+ vm._watchers.push(this);
+ // options
+ if (options) {
+ this.deep = !!options.deep;
+ this.user = !!options.user;
+ this.lazy = !!options.lazy;
+ this.sync = !!options.sync;
+ } else {
+ this.deep = this.user = this.lazy = this.sync = false;
+ }
+ this.cb = cb;
+ this.id = ++uid$2; // uid for batching
+ this.active = true;
+ this.dirty = this.lazy; // for lazy watchers
+ this.deps = [];
+ this.newDeps = [];
+ this.depIds = new _Set();
+ this.newDepIds = new _Set();
+ this.expression = expOrFn.toString();
+ // parse expression for getter
+ if (typeof expOrFn === 'function') {
+ this.getter = expOrFn;
+ } else {
+ this.getter = parsePath(expOrFn);
+ if (!this.getter) {
+ this.getter = function () {};
+ "development" !== 'production' && warn(
+ "Failed watching path: \"" + expOrFn + "\" " +
+ 'Watcher only accepts simple dot-delimited paths. ' +
+ 'For full control, use a function instead.',
+ vm
+ );
+ }
+ }
+ this.value = this.lazy
+ ? undefined
+ : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+ pushTarget(this);
+ var value;
+ var vm = this.vm;
+ try {
+ value = this.getter.call(vm, vm);
+ } catch (e) {
+ if (this.user) {
+ handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+ } else {
+ throw e
+ }
+ } finally {
+ // "touch" every property so they are all tracked as
+ // dependencies for deep watching
+ if (this.deep) {
+ traverse(value);
+ }
+ popTarget();
+ this.cleanupDeps();
+ }
+ return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+ var id = dep.id;
+ if (!this.newDepIds.has(id)) {
+ this.newDepIds.add(id);
+ this.newDeps.push(dep);
+ if (!this.depIds.has(id)) {
+ dep.addSub(this);
+ }
+ }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+ var this$1 = this;
+
+ var i = this.deps.length;
+ while (i--) {
+ var dep = this$1.deps[i];
+ if (!this$1.newDepIds.has(dep.id)) {
+ dep.removeSub(this$1);
+ }
+ }
+ var tmp = this.depIds;
+ this.depIds = this.newDepIds;
+ this.newDepIds = tmp;
+ this.newDepIds.clear();
+ tmp = this.deps;
+ this.deps = this.newDeps;
+ this.newDeps = tmp;
+ this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+ /* istanbul ignore else */
+ if (this.lazy) {
+ this.dirty = true;
+ } else if (this.sync) {
+ this.run();
+ } else {
+ queueWatcher(this);
+ }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+ if (this.active) {
+ var value = this.get();
+ if (
+ value !== this.value ||
+ // Deep watchers and watchers on Object/Arrays should fire even
+ // when the value is the same, because the value may
+ // have mutated.
+ isObject(value) ||
+ this.deep
+ ) {
+ // set new value
+ var oldValue = this.value;
+ this.value = value;
+ if (this.user) {
+ try {
+ this.cb.call(this.vm, value, oldValue);
+ } catch (e) {
+ handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+ }
+ } else {
+ this.cb.call(this.vm, value, oldValue);
+ }
+ }
+ }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+ this.value = this.get();
+ this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+ var this$1 = this;
+
+ var i = this.deps.length;
+ while (i--) {
+ this$1.deps[i].depend();
+ }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+ var this$1 = this;
+
+ if (this.active) {
+ // remove self from vm's watcher list
+ // this is a somewhat expensive operation so we skip it
+ // if the vm is being destroyed.
+ if (!this.vm._isBeingDestroyed) {
+ remove(this.vm._watchers, this);
+ }
+ var i = this.deps.length;
+ while (i--) {
+ this$1.deps[i].removeSub(this$1);
+ }
+ this.active = false;
+ }
+};
+
+/* */
+
+var sharedPropertyDefinition = {
+ enumerable: true,
+ configurable: true,
+ get: noop,
+ set: noop
+};
+
+function proxy (target, sourceKey, key) {
+ sharedPropertyDefinition.get = function proxyGetter () {
+ return this[sourceKey][key]
+ };
+ sharedPropertyDefinition.set = function proxySetter (val) {
+ this[sourceKey][key] = val;
+ };
+ Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+ vm._watchers = [];
+ var opts = vm.$options;
+ if (opts.props) { initProps(vm, opts.props); }
+ if (opts.methods) { initMethods(vm, opts.methods); }
+ if (opts.data) {
+ initData(vm);
+ } else {
+ observe(vm._data = {}, true /* asRootData */);
+ }
+ if (opts.computed) { initComputed(vm, opts.computed); }
+ if (opts.watch && opts.watch !== nativeWatch) {
+ initWatch(vm, opts.watch);
+ }
+}
+
+function initProps (vm, propsOptions) {
+ var propsData = vm.$options.propsData || {};
+ var props = vm._props = {};
+ // cache prop keys so that future props updates can iterate using Array
+ // instead of dynamic object key enumeration.
+ var keys = vm.$options._propKeys = [];
+ var isRoot = !vm.$parent;
+ // root instance props should be converted
+ observerState.shouldConvert = isRoot;
+ var loop = function ( key ) {
+ keys.push(key);
+ var value = validateProp(key, propsOptions, propsData, vm);
+ /* istanbul ignore else */
+ {
+ var hyphenatedKey = hyphenate(key);
+ if (isReservedAttribute(hyphenatedKey) ||
+ config.isReservedAttr(hyphenatedKey)) {
+ warn(
+ ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+ vm
+ );
+ }
+ defineReactive(props, key, value, function () {
+ if (vm.$parent && !isUpdatingChildComponent) {
+ warn(
+ "Avoid mutating a prop directly since the value will be " +
+ "overwritten whenever the parent component re-renders. " +
+ "Instead, use a data or computed property based on the prop's " +
+ "value. Prop being mutated: \"" + key + "\"",
+ vm
+ );
+ }
+ });
+ }
+ // static props are already proxied on the component's prototype
+ // during Vue.extend(). We only need to proxy props defined at
+ // instantiation here.
+ if (!(key in vm)) {
+ proxy(vm, "_props", key);
+ }
+ };
+
+ for (var key in propsOptions) loop( key );
+ observerState.shouldConvert = true;
+}
+
+function initData (vm) {
+ var data = vm.$options.data;
+ data = vm._data = typeof data === 'function'
+ ? getData(data, vm)
+ : data || {};
+ if (!isPlainObject(data)) {
+ data = {};
+ "development" !== 'production' && warn(
+ 'data functions should return an object:\n' +
+ 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+ vm
+ );
+ }
+ // proxy data on instance
+ var keys = Object.keys(data);
+ var props = vm.$options.props;
+ var methods = vm.$options.methods;
+ var i = keys.length;
+ while (i--) {
+ var key = keys[i];
+ {
+ if (methods && hasOwn(methods, key)) {
+ warn(
+ ("Method \"" + key + "\" has already been defined as a data property."),
+ vm
+ );
+ }
+ }
+ if (props && hasOwn(props, key)) {
+ "development" !== 'production' && warn(
+ "The data property \"" + key + "\" is already declared as a prop. " +
+ "Use prop default value instead.",
+ vm
+ );
+ } else if (!isReserved(key)) {
+ proxy(vm, "_data", key);
+ }
+ }
+ // observe data
+ observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+ try {
+ return data.call(vm, vm)
+ } catch (e) {
+ handleError(e, vm, "data()");
+ return {}
+ }
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+ // $flow-disable-line
+ var watchers = vm._computedWatchers = Object.create(null);
+ // computed properties are just getters during SSR
+ var isSSR = isServerRendering();
+
+ for (var key in computed) {
+ var userDef = computed[key];
+ var getter = typeof userDef === 'function' ? userDef : userDef.get;
+ if ("development" !== 'production' && getter == null) {
+ warn(
+ ("Getter is missing for computed property \"" + key + "\"."),
+ vm
+ );
+ }
+
+ if (!isSSR) {
+ // create internal watcher for the computed property.
+ watchers[key] = new Watcher(
+ vm,
+ getter || noop,
+ noop,
+ computedWatcherOptions
+ );
+ }
+
+ // component-defined computed properties are already defined on the
+ // component prototype. We only need to define computed properties defined
+ // at instantiation here.
+ if (!(key in vm)) {
+ defineComputed(vm, key, userDef);
+ } else {
+ if (key in vm.$data) {
+ warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+ } else if (vm.$options.props && key in vm.$options.props) {
+ warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+ }
+ }
+ }
+}
+
+function defineComputed (
+ target,
+ key,
+ userDef
+) {
+ var shouldCache = !isServerRendering();
+ if (typeof userDef === 'function') {
+ sharedPropertyDefinition.get = shouldCache
+ ? createComputedGetter(key)
+ : userDef;
+ sharedPropertyDefinition.set = noop;
+ } else {
+ sharedPropertyDefinition.get = userDef.get
+ ? shouldCache && userDef.cache !== false
+ ? createComputedGetter(key)
+ : userDef.get
+ : noop;
+ sharedPropertyDefinition.set = userDef.set
+ ? userDef.set
+ : noop;
+ }
+ if ("development" !== 'production' &&
+ sharedPropertyDefinition.set === noop) {
+ sharedPropertyDefinition.set = function () {
+ warn(
+ ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+ this
+ );
+ };
+ }
+ Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+ return function computedGetter () {
+ var watcher = this._computedWatchers && this._computedWatchers[key];
+ if (watcher) {
+ if (watcher.dirty) {
+ watcher.evaluate();
+ }
+ if (Dep.target) {
+ watcher.depend();
+ }
+ return watcher.value
+ }
+ }
+}
+
+function initMethods (vm, methods) {
+ var props = vm.$options.props;
+ for (var key in methods) {
+ {
+ if (methods[key] == null) {
+ warn(
+ "Method \"" + key + "\" has an undefined value in the component definition. " +
+ "Did you reference the function correctly?",
+ vm
+ );
+ }
+ if (props && hasOwn(props, key)) {
+ warn(
+ ("Method \"" + key + "\" has already been defined as a prop."),
+ vm
+ );
+ }
+ if ((key in vm) && isReserved(key)) {
+ warn(
+ "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+ "Avoid defining component methods that start with _ or $."
+ );
+ }
+ }
+ vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+ }
+}
+
+function initWatch (vm, watch) {
+ for (var key in watch) {
+ var handler = watch[key];
+ if (Array.isArray(handler)) {
+ for (var i = 0; i < handler.length; i++) {
+ createWatcher(vm, key, handler[i]);
+ }
+ } else {
+ createWatcher(vm, key, handler);
+ }
+ }
+}
+
+function createWatcher (
+ vm,
+ keyOrFn,
+ handler,
+ options
+) {
+ if (isPlainObject(handler)) {
+ options = handler;
+ handler = handler.handler;
+ }
+ if (typeof handler === 'string') {
+ handler = vm[handler];
+ }
+ return vm.$watch(keyOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+ // flow somehow has problems with directly declared definition object
+ // when using Object.defineProperty, so we have to procedurally build up
+ // the object here.
+ var dataDef = {};
+ dataDef.get = function () { return this._data };
+ var propsDef = {};
+ propsDef.get = function () { return this._props };
+ {
+ dataDef.set = function (newData) {
+ warn(
+ 'Avoid replacing instance root $data. ' +
+ 'Use nested data properties instead.',
+ this
+ );
+ };
+ propsDef.set = function () {
+ warn("$props is readonly.", this);
+ };
+ }
+ Object.defineProperty(Vue.prototype, '$data', dataDef);
+ Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+ Vue.prototype.$set = set;
+ Vue.prototype.$delete = del;
+
+ Vue.prototype.$watch = function (
+ expOrFn,
+ cb,
+ options
+ ) {
+ var vm = this;
+ if (isPlainObject(cb)) {
+ return createWatcher(vm, expOrFn, cb, options)
+ }
+ options = options || {};
+ options.user = true;
+ var watcher = new Watcher(vm, expOrFn, cb, options);
+ if (options.immediate) {
+ cb.call(vm, watcher.value);
+ }
+ return function unwatchFn () {
+ watcher.teardown();
+ }
+ };
+}
+
+/* */
+
+function initProvide (vm) {
+ var provide = vm.$options.provide;
+ if (provide) {
+ vm._provided = typeof provide === 'function'
+ ? provide.call(vm)
+ : provide;
+ }
+}
+
+function initInjections (vm) {
+ var result = resolveInject(vm.$options.inject, vm);
+ if (result) {
+ observerState.shouldConvert = false;
+ Object.keys(result).forEach(function (key) {
+ /* istanbul ignore else */
+ {
+ defineReactive(vm, key, result[key], function () {
+ warn(
+ "Avoid mutating an injected value directly since the changes will be " +
+ "overwritten whenever the provided component re-renders. " +
+ "injection being mutated: \"" + key + "\"",
+ vm
+ );
+ });
+ }
+ });
+ observerState.shouldConvert = true;
+ }
+}
+
+function resolveInject (inject, vm) {
+ if (inject) {
+ // inject is :any because flow is not smart enough to figure out cached
+ var result = Object.create(null);
+ var keys = hasSymbol
+ ? Reflect.ownKeys(inject).filter(function (key) {
+ /* istanbul ignore next */
+ return Object.getOwnPropertyDescriptor(inject, key).enumerable
+ })
+ : Object.keys(inject);
+
+ for (var i = 0; i < keys.length; i++) {
+ var key = keys[i];
+ var provideKey = inject[key].from;
+ var source = vm;
+ while (source) {
+ if (source._provided && provideKey in source._provided) {
+ result[key] = source._provided[provideKey];
+ break
+ }
+ source = source.$parent;
+ }
+ if (!source) {
+ if ('default' in inject[key]) {
+ var provideDefault = inject[key].default;
+ result[key] = typeof provideDefault === 'function'
+ ? provideDefault.call(vm)
+ : provideDefault;
+ } else {
+ warn(("Injection \"" + key + "\" not found"), vm);
+ }
+ }
+ }
+ return result
+ }
+}
+
+/* */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+ val,
+ render
+) {
+ var ret, i, l, keys, key;
+ if (Array.isArray(val) || typeof val === 'string') {
+ ret = new Array(val.length);
+ for (i = 0, l = val.length; i < l; i++) {
+ ret[i] = render(val[i], i);
+ }
+ } else if (typeof val === 'number') {
+ ret = new Array(val);
+ for (i = 0; i < val; i++) {
+ ret[i] = render(i + 1, i);
+ }
+ } else if (isObject(val)) {
+ keys = Object.keys(val);
+ ret = new Array(keys.length);
+ for (i = 0, l = keys.length; i < l; i++) {
+ key = keys[i];
+ ret[i] = render(val[key], key, i);
+ }
+ }
+ if (isDef(ret)) {
+ (ret)._isVList = true;
+ }
+ return ret
+}
+
+/* */
+
+/**
+ * Runtime helper for rendering
+ */
+function renderSlot (
+ name,
+ fallback,
+ props,
+ bindObject
+) {
+ var scopedSlotFn = this.$scopedSlots[name];
+ var nodes;
+ if (scopedSlotFn) { // scoped slot
+ props = props || {};
+ if (bindObject) {
+ if ("development" !== 'production' && !isObject(bindObject)) {
+ warn(
+ 'slot v-bind without argument expects an Object',
+ this
+ );
+ }
+ props = extend(extend({}, bindObject), props);
+ }
+ nodes = scopedSlotFn(props) || fallback;
+ } else {
+ var slotNodes = this.$slots[name];
+ // warn duplicate slot usage
+ if (slotNodes) {
+ if ("development" !== 'production' && slotNodes._rendered) {
+ warn(
+ "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+ "- this will likely cause render errors.",
+ this
+ );
+ }
+ slotNodes._rendered = true;
+ }
+ nodes = slotNodes || fallback;
+ }
+
+ var target = props && props.slot;
+ if (target) {
+ return this.$createElement('template', { slot: target }, nodes)
+ } else {
+ return nodes
+ }
+}
+
+/* */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+ return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/* */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+ eventKeyCode,
+ key,
+ builtInAlias,
+ eventKeyName
+) {
+ var keyCodes = config.keyCodes[key] || builtInAlias;
+ if (keyCodes) {
+ if (Array.isArray(keyCodes)) {
+ return keyCodes.indexOf(eventKeyCode) === -1
+ } else {
+ return keyCodes !== eventKeyCode
+ }
+ } else if (eventKeyName) {
+ return hyphenate(eventKeyName) !== key
+ }
+}
+
+/* */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+ data,
+ tag,
+ value,
+ asProp,
+ isSync
+) {
+ if (value) {
+ if (!isObject(value)) {
+ "development" !== 'production' && warn(
+ 'v-bind without argument expects an Object or Array value',
+ this
+ );
+ } else {
+ if (Array.isArray(value)) {
+ value = toObject(value);
+ }
+ var hash;
+ var loop = function ( key ) {
+ if (
+ key === 'class' ||
+ key === 'style' ||
+ isReservedAttribute(key)
+ ) {
+ hash = data;
+ } else {
+ var type = data.attrs && data.attrs.type;
+ hash = asProp || config.mustUseProp(tag, type, key)
+ ? data.domProps || (data.domProps = {})
+ : data.attrs || (data.attrs = {});
+ }
+ if (!(key in hash)) {
+ hash[key] = value[key];
+
+ if (isSync) {
+ var on = data.on || (data.on = {});
+ on[("update:" + key)] = function ($event) {
+ value[key] = $event;
+ };
+ }
+ }
+ };
+
+ for (var key in value) loop( key );
+ }
+ }
+ return data
+}
+
+/* */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+ index,
+ isInFor
+) {
+ var cached = this._staticTrees || (this._staticTrees = []);
+ var tree = cached[index];
+ // if has already-rendered static tree and not inside v-for,
+ // we can reuse the same tree by doing a shallow clone.
+ if (tree && !isInFor) {
+ return Array.isArray(tree)
+ ? cloneVNodes(tree)
+ : cloneVNode(tree)
+ }
+ // otherwise, render a fresh tree.
+ tree = cached[index] = this.$options.staticRenderFns[index].call(
+ this._renderProxy,
+ null,
+ this // for render fns generated for functional component templates
+ );
+ markStatic(tree, ("__static__" + index), false);
+ return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+ tree,
+ index,
+ key
+) {
+ markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+ return tree
+}
+
+function markStatic (
+ tree,
+ key,
+ isOnce
+) {
+ if (Array.isArray(tree)) {
+ for (var i = 0; i < tree.length; i++) {
+ if (tree[i] && typeof tree[i] !== 'string') {
+ markStaticNode(tree[i], (key + "_" + i), isOnce);
+ }
+ }
+ } else {
+ markStaticNode(tree, key, isOnce);
+ }
+}
+
+function markStaticNode (node, key, isOnce) {
+ node.isStatic = true;
+ node.key = key;
+ node.isOnce = isOnce;
+}
+
+/* */
+
+function bindObjectListeners (data, value) {
+ if (value) {
+ if (!isPlainObject(value)) {
+ "development" !== 'production' && warn(
+ 'v-on without argument expects an Object value',
+ this
+ );
+ } else {
+ var on = data.on = data.on ? extend({}, data.on) : {};
+ for (var key in value) {
+ var existing = on[key];
+ var ours = value[key];
+ on[key] = existing ? [].concat(existing, ours) : ours;
+ }
+ }
+ }
+ return data
+}
+
+/* */
+
+function installRenderHelpers (target) {
+ target._o = markOnce;
+ target._n = toNumber;
+ target._s = toString;
+ target._l = renderList;
+ target._t = renderSlot;
+ target._q = looseEqual;
+ target._i = looseIndexOf;
+ target._m = renderStatic;
+ target._f = resolveFilter;
+ target._k = checkKeyCodes;
+ target._b = bindObjectProps;
+ target._v = createTextVNode;
+ target._e = createEmptyVNode;
+ target._u = resolveScopedSlots;
+ target._g = bindObjectListeners;
+}
+
+/* */
+
+function FunctionalRenderContext (
+ data,
+ props,
+ children,
+ parent,
+ Ctor
+) {
+ var options = Ctor.options;
+ this.data = data;
+ this.props = props;
+ this.children = children;
+ this.parent = parent;
+ this.listeners = data.on || emptyObject;
+ this.injections = resolveInject(options.inject, parent);
+ this.slots = function () { return resolveSlots(children, parent); };
+
+ // ensure the createElement function in functional components
+ // gets a unique context - this is necessary for correct named slot check
+ var contextVm = Object.create(parent);
+ var isCompiled = isTrue(options._compiled);
+ var needNormalization = !isCompiled;
+
+ // support for compiled functional template
+ if (isCompiled) {
+ // exposing $options for renderStatic()
+ this.$options = options;
+ // pre-resolve slots for renderSlot()
+ this.$slots = this.slots();
+ this.$scopedSlots = data.scopedSlots || emptyObject;
+ }
+
+ if (options._scopeId) {
+ this._c = function (a, b, c, d) {
+ var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+ if (vnode) {
+ vnode.fnScopeId = options._scopeId;
+ vnode.fnContext = parent;
+ }
+ return vnode
+ };
+ } else {
+ this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+ }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+ Ctor,
+ propsData,
+ data,
+ contextVm,
+ children
+) {
+ var options = Ctor.options;
+ var props = {};
+ var propOptions = options.props;
+ if (isDef(propOptions)) {
+ for (var key in propOptions) {
+ props[key] = validateProp(key, propOptions, propsData || emptyObject);
+ }
+ } else {
+ if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+ if (isDef(data.props)) { mergeProps(props, data.props); }
+ }
+
+ var renderContext = new FunctionalRenderContext(
+ data,
+ props,
+ children,
+ contextVm,
+ Ctor
+ );
+
+ var vnode = options.render.call(null, renderContext._c, renderContext);
+
+ if (vnode instanceof VNode) {
+ vnode.fnContext = contextVm;
+ vnode.fnOptions = options;
+ if (data.slot) {
+ (vnode.data || (vnode.data = {})).slot = data.slot;
+ }
+ }
+
+ return vnode
+}
+
+function mergeProps (to, from) {
+ for (var key in from) {
+ to[camelize(key)] = from[key];
+ }
+}
+
+/* */
+
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/* */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/* */
+
+/* */
+
+// hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+ init: function init (
+ vnode,
+ hydrating,
+ parentElm,
+ refElm
+ ) {
+ if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+ var child = vnode.componentInstance = createComponentInstanceForVnode(
+ vnode,
+ activeInstance,
+ parentElm,
+ refElm
+ );
+ child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+ } else if (vnode.data.keepAlive) {
+ // kept-alive components, treat as a patch
+ var mountedNode = vnode; // work around flow
+ componentVNodeHooks.prepatch(mountedNode, mountedNode);
+ }
+ },
+
+ prepatch: function prepatch (oldVnode, vnode) {
+ var options = vnode.componentOptions;
+ var child = vnode.componentInstance = oldVnode.componentInstance;
+ updateChildComponent(
+ child,
+ options.propsData, // updated props
+ options.listeners, // updated listeners
+ vnode, // new parent vnode
+ options.children // new children
+ );
+ },
+
+ insert: function insert (vnode) {
+ var context = vnode.context;
+ var componentInstance = vnode.componentInstance;
+ if (!componentInstance._isMounted) {
+ componentInstance._isMounted = true;
+ callHook(componentInstance, 'mounted');
+ }
+ if (vnode.data.keepAlive) {
+ if (context._isMounted) {
+ // vue-router#1212
+ // During updates, a kept-alive component's child components may
+ // change, so directly walking the tree here may call activated hooks
+ // on incorrect children. Instead we push them into a queue which will
+ // be processed after the whole patch process ended.
+ queueActivatedComponent(componentInstance);
+ } else {
+ activateChildComponent(componentInstance, true /* direct */);
+ }
+ }
+ },
+
+ destroy: function destroy (vnode) {
+ var componentInstance = vnode.componentInstance;
+ if (!componentInstance._isDestroyed) {
+ if (!vnode.data.keepAlive) {
+ componentInstance.$destroy();
+ } else {
+ deactivateChildComponent(componentInstance, true /* direct */);
+ }
+ }
+ }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+ Ctor,
+ data,
+ context,
+ children,
+ tag
+) {
+ if (isUndef(Ctor)) {
+ return
+ }
+
+ var baseCtor = context.$options._base;
+
+ // plain options object: turn it into a constructor
+ if (isObject(Ctor)) {
+ Ctor = baseCtor.extend(Ctor);
+ }
+
+ // if at this stage it's not a constructor or an async component factory,
+ // reject.
+ if (typeof Ctor !== 'function') {
+ {
+ warn(("Invalid Component definition: " + (String(Ctor))), context);
+ }
+ return
+ }
+
+ // async component
+ var asyncFactory;
+ if (isUndef(Ctor.cid)) {
+ asyncFactory = Ctor;
+ Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+ if (Ctor === undefined) {
+ // return a placeholder node for async component, which is rendered
+ // as a comment node but preserves all the raw information for the node.
+ // the information will be used for async server-rendering and hydration.
+ return createAsyncPlaceholder(
+ asyncFactory,
+ data,
+ context,
+ children,
+ tag
+ )
+ }
+ }
+
+ data = data || {};
+
+ // resolve constructor options in case global mixins are applied after
+ // component constructor creation
+ resolveConstructorOptions(Ctor);
+
+ // transform component v-model data into props & events
+ if (isDef(data.model)) {
+ transformModel(Ctor.options, data);
+ }
+
+ // extract props
+ var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+ // functional component
+ if (isTrue(Ctor.options.functional)) {
+ return createFunctionalComponent(Ctor, propsData, data, context, children)
+ }
+
+ // extract listeners, since these needs to be treated as
+ // child component listeners instead of DOM listeners
+ var listeners = data.on;
+ // replace with listeners with .native modifier
+ // so it gets processed during parent component patch.
+ data.on = data.nativeOn;
+
+ if (isTrue(Ctor.options.abstract)) {
+ // abstract components do not keep anything
+ // other than props & listeners & slot
+
+ // work around flow
+ var slot = data.slot;
+ data = {};
+ if (slot) {
+ data.slot = slot;
+ }
+ }
+
+ // merge component management hooks onto the placeholder node
+ mergeHooks(data);
+
+ // return a placeholder vnode
+ var name = Ctor.options.name || tag;
+ var vnode = new VNode(
+ ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+ data, undefined, undefined, undefined, context,
+ { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+ asyncFactory
+ );
+
+ // Weex specific: invoke recycle-list optimized @render function for
+ // extracting cell-slot template.
+ // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+ /* istanbul ignore if */
+ return vnode
+}
+
+function createComponentInstanceForVnode (
+ vnode, // we know it's MountedComponentVNode but flow doesn't
+ parent, // activeInstance in lifecycle state
+ parentElm,
+ refElm
+) {
+ var options = {
+ _isComponent: true,
+ parent: parent,
+ _parentVnode: vnode,
+ _parentElm: parentElm || null,
+ _refElm: refElm || null
+ };
+ // check inline-template render functions
+ var inlineTemplate = vnode.data.inlineTemplate;
+ if (isDef(inlineTemplate)) {
+ options.render = inlineTemplate.render;
+ options.staticRenderFns = inlineTemplate.staticRenderFns;
+ }
+ return new vnode.componentOptions.Ctor(options)
+}
+
+function mergeHooks (data) {
+ if (!data.hook) {
+ data.hook = {};
+ }
+ for (var i = 0; i < hooksToMerge.length; i++) {
+ var key = hooksToMerge[i];
+ var fromParent = data.hook[key];
+ var ours = componentVNodeHooks[key];
+ data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
+ }
+}
+
+function mergeHook$1 (one, two) {
+ return function (a, b, c, d) {
+ one(a, b, c, d);
+ two(a, b, c, d);
+ }
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+ var prop = (options.model && options.model.prop) || 'value';
+ var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+ var on = data.on || (data.on = {});
+ if (isDef(on[event])) {
+ on[event] = [data.model.callback].concat(on[event]);
+ } else {
+ on[event] = data.model.callback;
+ }
+}
+
+/* */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+ context,
+ tag,
+ data,
+ children,
+ normalizationType,
+ alwaysNormalize
+) {
+ if (Array.isArray(data) || isPrimitive(data)) {
+ normalizationType = children;
+ children = data;
+ data = undefined;
+ }
+ if (isTrue(alwaysNormalize)) {
+ normalizationType = ALWAYS_NORMALIZE;
+ }
+ return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+ context,
+ tag,
+ data,
+ children,
+ normalizationType
+) {
+ if (isDef(data) && isDef((data).__ob__)) {
+ "development" !== 'production' && warn(
+ "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+ 'Always create fresh vnode data objects in each render!',
+ context
+ );
+ return createEmptyVNode()
+ }
+ // object syntax in v-bind
+ if (isDef(data) && isDef(data.is)) {
+ tag = data.is;
+ }
+ if (!tag) {
+ // in case of component :is set to falsy value
+ return createEmptyVNode()
+ }
+ // warn against non-primitive key
+ if ("development" !== 'production' &&
+ isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+ ) {
+ {
+ warn(
+ 'Avoid using non-primitive value as key, ' +
+ 'use string/number value instead.',
+ context
+ );
+ }
+ }
+ // support single function children as default scoped slot
+ if (Array.isArray(children) &&
+ typeof children[0] === 'function'
+ ) {
+ data = data || {};
+ data.scopedSlots = { default: children[0] };
+ children.length = 0;
+ }
+ if (normalizationType === ALWAYS_NORMALIZE) {
+ children = normalizeChildren(children);
+ } else if (normalizationType === SIMPLE_NORMALIZE) {
+ children = simpleNormalizeChildren(children);
+ }
+ var vnode, ns;
+ if (typeof tag === 'string') {
+ var Ctor;
+ ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+ if (config.isReservedTag(tag)) {
+ // platform built-in elements
+ vnode = new VNode(
+ config.parsePlatformTagName(tag), data, children,
+ undefined, undefined, context
+ );
+ } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+ // component
+ vnode = createComponent(Ctor, data, context, children, tag);
+ } else {
+ // unknown or unlisted namespaced elements
+ // check at runtime because it may get assigned a namespace when its
+ // parent normalizes children
+ vnode = new VNode(
+ tag, data, children,
+ undefined, undefined, context
+ );
+ }
+ } else {
+ // direct component options / constructor
+ vnode = createComponent(tag, data, context, children);
+ }
+ if (isDef(vnode)) {
+ if (ns) { applyNS(vnode, ns); }
+ return vnode
+ } else {
+ return createEmptyVNode()
+ }
+}
+
+function applyNS (vnode, ns, force) {
+ vnode.ns = ns;
+ if (vnode.tag === 'foreignObject') {
+ // use default namespace inside foreignObject
+ ns = undefined;
+ force = true;
+ }
+ if (isDef(vnode.children)) {
+ for (var i = 0, l = vnode.children.length; i < l; i++) {
+ var child = vnode.children[i];
+ if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+ applyNS(child, ns, force);
+ }
+ }
+ }
+}
+
+/* */
+
+function initRender (vm) {
+ vm._vnode = null; // the root of the child tree
+ vm._staticTrees = null; // v-once cached trees
+ var options = vm.$options;
+ var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+ var renderContext = parentVnode && parentVnode.context;
+ vm.$slots = resolveSlots(options._renderChildren, renderContext);
+ vm.$scopedSlots = emptyObject;
+ // bind the createElement fn to this instance
+ // so that we get proper render context inside it.
+ // args order: tag, data, children, normalizationType, alwaysNormalize
+ // internal version is used by render functions compiled from templates
+ vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+ // normalization is always applied for the public version, used in
+ // user-written render functions.
+ vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+ // $attrs & $listeners are exposed for easier HOC creation.
+ // they need to be reactive so that HOCs using them are always updated
+ var parentData = parentVnode && parentVnode.data;
+
+ /* istanbul ignore else */
+ {
+ defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+ !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+ }, true);
+ defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+ !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+ }, true);
+ }
+}
+
+function renderMixin (Vue) {
+ // install runtime convenience helpers
+ installRenderHelpers(Vue.prototype);
+
+ Vue.prototype.$nextTick = function (fn) {
+ return nextTick(fn, this)
+ };
+
+ Vue.prototype._render = function () {
+ var vm = this;
+ var ref = vm.$options;
+ var render = ref.render;
+ var _parentVnode = ref._parentVnode;
+
+ if (vm._isMounted) {
+ // if the parent didn't update, the slot nodes will be the ones from
+ // last render. They need to be cloned to ensure "freshness" for this render.
+ for (var key in vm.$slots) {
+ var slot = vm.$slots[key];
+ // _rendered is a flag added by renderSlot, but may not be present
+ // if the slot is passed from manually written render functions
+ if (slot._rendered || (slot[0] && slot[0].elm)) {
+ vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+ }
+ }
+ }
+
+ vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+
+ // set parent vnode. this allows render functions to have access
+ // to the data on the placeholder node.
+ vm.$vnode = _parentVnode;
+ // render self
+ var vnode;
+ try {
+ vnode = render.call(vm._renderProxy, vm.$createElement);
+ } catch (e) {
+ handleError(e, vm, "render");
+ // return error render result,
+ // or previous vnode to prevent render error causing blank component
+ /* istanbul ignore else */
+ {
+ if (vm.$options.renderError) {
+ try {
+ vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+ } catch (e) {
+ handleError(e, vm, "renderError");
+ vnode = vm._vnode;
+ }
+ } else {
+ vnode = vm._vnode;
+ }
+ }
+ }
+ // return empty vnode in case the render function errored out
+ if (!(vnode instanceof VNode)) {
+ if ("development" !== 'production' && Array.isArray(vnode)) {
+ warn(
+ 'Multiple root nodes returned from render function. Render function ' +
+ 'should return a single root node.',
+ vm
+ );
+ }
+ vnode = createEmptyVNode();
+ }
+ // set parent
+ vnode.parent = _parentVnode;
+ return vnode
+ };
+}
+
+/* */
+
+var uid$1 = 0;
+
+function initMixin (Vue) {
+ Vue.prototype._init = function (options) {
+ var vm = this;
+ // a uid
+ vm._uid = uid$1++;
+
+ var startTag, endTag;
+ /* istanbul ignore if */
+ if ("development" !== 'production' && config.performance && mark) {
+ startTag = "vue-perf-start:" + (vm._uid);
+ endTag = "vue-perf-end:" + (vm._uid);
+ mark(startTag);
+ }
+
+ // a flag to avoid this being observed
+ vm._isVue = true;
+ // merge options
+ if (options && options._isComponent) {
+ // optimize internal component instantiation
+ // since dynamic options merging is pretty slow, and none of the
+ // internal component options needs special treatment.
+ initInternalComponent(vm, options);
+ } else {
+ vm.$options = mergeOptions(
+ resolveConstructorOptions(vm.constructor),
+ options || {},
+ vm
+ );
+ }
+ /* istanbul ignore else */
+ {
+ initProxy(vm);
+ }
+ // expose real self
+ vm._self = vm;
+ initLifecycle(vm);
+ initEvents(vm);
+ initRender(vm);
+ callHook(vm, 'beforeCreate');
+ initInjections(vm); // resolve injections before data/props
+ initState(vm);
+ initProvide(vm); // resolve provide after data/props
+ callHook(vm, 'created');
+
+ /* istanbul ignore if */
+ if ("development" !== 'production' && config.performance && mark) {
+ vm._name = formatComponentName(vm, false);
+ mark(endTag);
+ measure(("vue " + (vm._name) + " init"), startTag, endTag);
+ }
+
+ if (vm.$options.el) {
+ vm.$mount(vm.$options.el);
+ }
+ };
+}
+
+function initInternalComponent (vm, options) {
+ var opts = vm.$options = Object.create(vm.constructor.options);
+ // doing this because it's faster than dynamic enumeration.
+ var parentVnode = options._parentVnode;
+ opts.parent = options.parent;
+ opts._parentVnode = parentVnode;
+ opts._parentElm = options._parentElm;
+ opts._refElm = options._refElm;
+
+ var vnodeComponentOptions = parentVnode.componentOptions;
+ opts.propsData = vnodeComponentOptions.propsData;
+ opts._parentListeners = vnodeComponentOptions.listeners;
+ opts._renderChildren = vnodeComponentOptions.children;
+ opts._componentTag = vnodeComponentOptions.tag;
+
+ if (options.render) {
+ opts.render = options.render;
+ opts.staticRenderFns = options.staticRenderFns;
+ }
+}
+
+function resolveConstructorOptions (Ctor) {
+ var options = Ctor.options;
+ if (Ctor.super) {
+ var superOptions = resolveConstructorOptions(Ctor.super);
+ var cachedSuperOptions = Ctor.superOptions;
+ if (superOptions !== cachedSuperOptions) {
+ // super option changed,
+ // need to resolve new options.
+ Ctor.superOptions = superOptions;
+ // check if there are any late-modified/attached options (#4976)
+ var modifiedOptions = resolveModifiedOptions(Ctor);
+ // update base extend options
+ if (modifiedOptions) {
+ extend(Ctor.extendOptions, modifiedOptions);
+ }
+ options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+ if (options.name) {
+ options.components[options.name] = Ctor;
+ }
+ }
+ }
+ return options
+}
+
+function resolveModifiedOptions (Ctor) {
+ var modified;
+ var latest = Ctor.options;
+ var extended = Ctor.extendOptions;
+ var sealed = Ctor.sealedOptions;
+ for (var key in latest) {
+ if (latest[key] !== sealed[key]) {
+ if (!modified) { modified = {}; }
+ modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+ }
+ }
+ return modified
+}
+
+function dedupe (latest, extended, sealed) {
+ // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+ // between merges
+ if (Array.isArray(latest)) {
+ var res = [];
+ sealed = Array.isArray(sealed) ? sealed : [sealed];
+ extended = Array.isArray(extended) ? extended : [extended];
+ for (var i = 0; i < latest.length; i++) {
+ // push original options and not sealed options to exclude duplicated options
+ if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+ res.push(latest[i]);
+ }
+ }
+ return res
+ } else {
+ return latest
+ }
+}
+
+function Vue$3 (options) {
+ if ("development" !== 'production' &&
+ !(this instanceof Vue$3)
+ ) {
+ warn('Vue is a constructor and should be called with the `new` keyword');
+ }
+ this._init(options);
+}
+
+initMixin(Vue$3);
+stateMixin(Vue$3);
+eventsMixin(Vue$3);
+lifecycleMixin(Vue$3);
+renderMixin(Vue$3);
+
+/* */
+
+function initUse (Vue) {
+ Vue.use = function (plugin) {
+ var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+ if (installedPlugins.indexOf(plugin) > -1) {
+ return this
+ }
+
+ // additional parameters
+ var args = toArray(arguments, 1);
+ args.unshift(this);
+ if (typeof plugin.install === 'function') {
+ plugin.install.apply(plugin, args);
+ } else if (typeof plugin === 'function') {
+ plugin.apply(null, args);
+ }
+ installedPlugins.push(plugin);
+ return this
+ };
+}
+
+/* */
+
+function initMixin$1 (Vue) {
+ Vue.mixin = function (mixin) {
+ this.options = mergeOptions(this.options, mixin);
+ return this
+ };
+}
+
+/* */
+
+function initExtend (Vue) {
+ /**
+ * Each instance constructor, including Vue, has a unique
+ * cid. This enables us to create wrapped "child
+ * constructors" for prototypal inheritance and cache them.
+ */
+ Vue.cid = 0;
+ var cid = 1;
+
+ /**
+ * Class inheritance
+ */
+ Vue.extend = function (extendOptions) {
+ extendOptions = extendOptions || {};
+ var Super = this;
+ var SuperId = Super.cid;
+ var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+ if (cachedCtors[SuperId]) {
+ return cachedCtors[SuperId]
+ }
+
+ var name = extendOptions.name || Super.options.name;
+ if ("development" !== 'production' && name) {
+ validateComponentName(name);
+ }
+
+ var Sub = function VueComponent (options) {
+ this._init(options);
+ };
+ Sub.prototype = Object.create(Super.prototype);
+ Sub.prototype.constructor = Sub;
+ Sub.cid = cid++;
+ Sub.options = mergeOptions(
+ Super.options,
+ extendOptions
+ );
+ Sub['super'] = Super;
+
+ // For props and computed properties, we define the proxy getters on
+ // the Vue instances at extension time, on the extended prototype. This
+ // avoids Object.defineProperty calls for each instance created.
+ if (Sub.options.props) {
+ initProps$1(Sub);
+ }
+ if (Sub.options.computed) {
+ initComputed$1(Sub);
+ }
+
+ // allow further extension/mixin/plugin usage
+ Sub.extend = Super.extend;
+ Sub.mixin = Super.mixin;
+ Sub.use = Super.use;
+
+ // create asset registers, so extended classes
+ // can have their private assets too.
+ ASSET_TYPES.forEach(function (type) {
+ Sub[type] = Super[type];
+ });
+ // enable recursive self-lookup
+ if (name) {
+ Sub.options.components[name] = Sub;
+ }
+
+ // keep a reference to the super options at extension time.
+ // later at instantiation we can check if Super's options have
+ // been updated.
+ Sub.superOptions = Super.options;
+ Sub.extendOptions = extendOptions;
+ Sub.sealedOptions = extend({}, Sub.options);
+
+ // cache constructor
+ cachedCtors[SuperId] = Sub;
+ return Sub
+ };
+}
+
+function initProps$1 (Comp) {
+ var props = Comp.options.props;
+ for (var key in props) {
+ proxy(Comp.prototype, "_props", key);
+ }
+}
+
+function initComputed$1 (Comp) {
+ var computed = Comp.options.computed;
+ for (var key in computed) {
+ defineComputed(Comp.prototype, key, computed[key]);
+ }
+}
+
+/* */
+
+function initAssetRegisters (Vue) {
+ /**
+ * Create asset registration methods.
+ */
+ ASSET_TYPES.forEach(function (type) {
+ Vue[type] = function (
+ id,
+ definition
+ ) {
+ if (!definition) {
+ return this.options[type + 's'][id]
+ } else {
+ /* istanbul ignore if */
+ if ("development" !== 'production' && type === 'component') {
+ validateComponentName(id);
+ }
+ if (type === 'component' && isPlainObject(definition)) {
+ definition.name = definition.name || id;
+ definition = this.options._base.extend(definition);
+ }
+ if (type === 'directive' && typeof definition === 'function') {
+ definition = { bind: definition, update: definition };
+ }
+ this.options[type + 's'][id] = definition;
+ return definition
+ }
+ };
+ });
+}
+
+/* */
+
+function getComponentName (opts) {
+ return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+ if (Array.isArray(pattern)) {
+ return pattern.indexOf(name) > -1
+ } else if (typeof pattern === 'string') {
+ return pattern.split(',').indexOf(name) > -1
+ } else if (isRegExp(pattern)) {
+ return pattern.test(name)
+ }
+ /* istanbul ignore next */
+ return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+ var cache = keepAliveInstance.cache;
+ var keys = keepAliveInstance.keys;
+ var _vnode = keepAliveInstance._vnode;
+ for (var key in cache) {
+ var cachedNode = cache[key];
+ if (cachedNode) {
+ var name = getComponentName(cachedNode.componentOptions);
+ if (name && !filter(name)) {
+ pruneCacheEntry(cache, key, keys, _vnode);
+ }
+ }
+ }
+}
+
+function pruneCacheEntry (
+ cache,
+ key,
+ keys,
+ current
+) {
+ var cached$$1 = cache[key];
+ if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+ cached$$1.componentInstance.$destroy();
+ }
+ cache[key] = null;
+ remove(keys, key);
+}
+
+var patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+ name: 'keep-alive',
+ abstract: true,
+
+ props: {
+ include: patternTypes,
+ exclude: patternTypes,
+ max: [String, Number]
+ },
+
+ created: function created () {
+ this.cache = Object.create(null);
+ this.keys = [];
+ },
+
+ destroyed: function destroyed () {
+ var this$1 = this;
+
+ for (var key in this$1.cache) {
+ pruneCacheEntry(this$1.cache, key, this$1.keys);
+ }
+ },
+
+ watch: {
+ include: function include (val) {
+ pruneCache(this, function (name) { return matches(val, name); });
+ },
+ exclude: function exclude (val) {
+ pruneCache(this, function (name) { return !matches(val, name); });
+ }
+ },
+
+ render: function render () {
+ var slot = this.$slots.default;
+ var vnode = getFirstComponentChild(slot);
+ var componentOptions = vnode && vnode.componentOptions;
+ if (componentOptions) {
+ // check pattern
+ var name = getComponentName(componentOptions);
+ var ref = this;
+ var include = ref.include;
+ var exclude = ref.exclude;
+ if (
+ // not included
+ (include && (!name || !matches(include, name))) ||
+ // excluded
+ (exclude && name && matches(exclude, name))
+ ) {
+ return vnode
+ }
+
+ var ref$1 = this;
+ var cache = ref$1.cache;
+ var keys = ref$1.keys;
+ var key = vnode.key == null
+ // same constructor may get registered as different local components
+ // so cid alone is not enough (#3269)
+ ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+ : vnode.key;
+ if (cache[key]) {
+ vnode.componentInstance = cache[key].componentInstance;
+ // make current key freshest
+ remove(keys, key);
+ keys.push(key);
+ } else {
+ cache[key] = vnode;
+ keys.push(key);
+ // prune oldest entry
+ if (this.max && keys.length > parseInt(this.max)) {
+ pruneCacheEntry(cache, keys[0], keys, this._vnode);
+ }
+ }
+
+ vnode.data.keepAlive = true;
+ }
+ return vnode || (slot && slot[0])
+ }
+};
+
+var builtInComponents = {
+ KeepAlive: KeepAlive
+};
+
+/* */
+
+function initGlobalAPI (Vue) {
+ // config
+ var configDef = {};
+ configDef.get = function () { return config; };
+ {
+ configDef.set = function () {
+ warn(
+ 'Do not replace the Vue.config object, set individual fields instead.'
+ );
+ };
+ }
+ Object.defineProperty(Vue, 'config', configDef);
+
+ // exposed util methods.
+ // NOTE: these are not considered part of the public API - avoid relying on
+ // them unless you are aware of the risk.
+ Vue.util = {
+ warn: warn,
+ extend: extend,
+ mergeOptions: mergeOptions,
+ defineReactive: defineReactive
+ };
+
+ Vue.set = set;
+ Vue.delete = del;
+ Vue.nextTick = nextTick;
+
+ Vue.options = Object.create(null);
+ ASSET_TYPES.forEach(function (type) {
+ Vue.options[type + 's'] = Object.create(null);
+ });
+
+ // this is used to identify the "base" constructor to extend all plain-object
+ // components with in Weex's multi-instance scenarios.
+ Vue.options._base = Vue;
+
+ extend(Vue.options.components, builtInComponents);
+
+ initUse(Vue);
+ initMixin$1(Vue);
+ initExtend(Vue);
+ initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue$3);
+
+Object.defineProperty(Vue$3.prototype, '$isServer', {
+ get: isServerRendering
+});
+
+Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+ get: function get () {
+ /* istanbul ignore next */
+ return this.$vnode && this.$vnode.ssrContext
+ }
+});
+
+Vue$3.version = '2.5.13';
+
+/* */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+ return (
+ (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+ (attr === 'selected' && tag === 'option') ||
+ (attr === 'checked' && tag === 'input') ||
+ (attr === 'muted' && tag === 'video')
+ )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+ 'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+ 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+ 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+ 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+ 'required,reversed,scoped,seamless,selected,sortable,translate,' +
+ 'truespeed,typemustmatch,visible'
+);
+
+var xlinkNS = 'http://www.w3.org/1999/xlink';
+
+var isXlink = function (name) {
+ return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+var getXlinkProp = function (name) {
+ return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+var isFalsyAttrValue = function (val) {
+ return val == null || val === false
+};
+
+/* */
+
+function genClassForVnode (vnode) {
+ var data = vnode.data;
+ var parentNode = vnode;
+ var childNode = vnode;
+ while (isDef(childNode.componentInstance)) {
+ childNode = childNode.componentInstance._vnode;
+ if (childNode && childNode.data) {
+ data = mergeClassData(childNode.data, data);
+ }
+ }
+ while (isDef(parentNode = parentNode.parent)) {
+ if (parentNode && parentNode.data) {
+ data = mergeClassData(data, parentNode.data);
+ }
+ }
+ return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+ return {
+ staticClass: concat(child.staticClass, parent.staticClass),
+ class: isDef(child.class)
+ ? [child.class, parent.class]
+ : parent.class
+ }
+}
+
+function renderClass (
+ staticClass,
+ dynamicClass
+) {
+ if (isDef(staticClass) || isDef(dynamicClass)) {
+ return concat(staticClass, stringifyClass(dynamicClass))
+ }
+ /* istanbul ignore next */
+ return ''
+}
+
+function concat (a, b) {
+ return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+ if (Array.isArray(value)) {
+ return stringifyArray(value)
+ }
+ if (isObject(value)) {
+ return stringifyObject(value)
+ }
+ if (typeof value === 'string') {
+ return value
+ }
+ /* istanbul ignore next */
+ return ''
+}
+
+function stringifyArray (value) {
+ var res = '';
+ var stringified;
+ for (var i = 0, l = value.length; i < l; i++) {
+ if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+ if (res) { res += ' '; }
+ res += stringified;
+ }
+ }
+ return res
+}
+
+function stringifyObject (value) {
+ var res = '';
+ for (var key in value) {
+ if (value[key]) {
+ if (res) { res += ' '; }
+ res += key;
+ }
+ }
+ return res
+}
+
+/* */
+
+var namespaceMap = {
+ svg: 'http://www.w3.org/2000/svg',
+ math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+var isHTMLTag = makeMap(
+ 'html,body,base,head,link,meta,style,title,' +
+ 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+ 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+ 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+ 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+ 'embed,object,param,source,canvas,script,noscript,del,ins,' +
+ 'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+ 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+ 'output,progress,select,textarea,' +
+ 'details,dialog,menu,menuitem,summary,' +
+ 'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+ 'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+ 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+ 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+ true
+);
+
+var isPreTag = function (tag) { return tag === 'pre'; };
+
+var isReservedTag = function (tag) {
+ return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+ if (isSVG(tag)) {
+ return 'svg'
+ }
+ // basic support for MathML
+ // note it doesn't support other MathML elements being component roots
+ if (tag === 'math') {
+ return 'math'
+ }
+}
+
+var unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+ /* istanbul ignore if */
+ if (!inBrowser) {
+ return true
+ }
+ if (isReservedTag(tag)) {
+ return false
+ }
+ tag = tag.toLowerCase();
+ /* istanbul ignore if */
+ if (unknownElementCache[tag] != null) {
+ return unknownElementCache[tag]
+ }
+ var el = document.createElement(tag);
+ if (tag.indexOf('-') > -1) {
+ // http://stackoverflow.com/a/28210364/1070244
+ return (unknownElementCache[tag] = (
+ el.constructor === window.HTMLUnknownElement ||
+ el.constructor === window.HTMLElement
+ ))
+ } else {
+ return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+ }
+}
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/* */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+ if (typeof el === 'string') {
+ var selected = document.querySelector(el);
+ if (!selected) {
+ "development" !== 'production' && warn(
+ 'Cannot find element: ' + el
+ );
+ return document.createElement('div')
+ }
+ return selected
+ } else {
+ return el
+ }
+}
+
+/* */
+
+function createElement$1 (tagName, vnode) {
+ var elm = document.createElement(tagName);
+ if (tagName !== 'select') {
+ return elm
+ }
+ // false or null will remove the attribute but undefined will not
+ if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+ elm.setAttribute('multiple', 'multiple');
+ }
+ return elm
+}
+
+function createElementNS (namespace, tagName) {
+ return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+ return document.createTextNode(text)
+}
+
+function createComment (text) {
+ return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+ parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+ node.removeChild(child);
+}
+
+function appendChild (node, child) {
+ node.appendChild(child);
+}
+
+function parentNode (node) {
+ return node.parentNode
+}
+
+function nextSibling (node) {
+ return node.nextSibling
+}
+
+function tagName (node) {
+ return node.tagName
+}
+
+function setTextContent (node, text) {
+ node.textContent = text;
+}
+
+function setAttribute (node, key, val) {
+ node.setAttribute(key, val);
+}
+
+
+var nodeOps = Object.freeze({
+ createElement: createElement$1,
+ createElementNS: createElementNS,
+ createTextNode: createTextNode,
+ createComment: createComment,
+ insertBefore: insertBefore,
+ removeChild: removeChild,
+ appendChild: appendChild,
+ parentNode: parentNode,
+ nextSibling: nextSibling,
+ tagName: tagName,
+ setTextContent: setTextContent,
+ setAttribute: setAttribute
+});
+
+/* */
+
+var ref = {
+ create: function create (_, vnode) {
+ registerRef(vnode);
+ },
+ update: function update (oldVnode, vnode) {
+ if (oldVnode.data.ref !== vnode.data.ref) {
+ registerRef(oldVnode, true);
+ registerRef(vnode);
+ }
+ },
+ destroy: function destroy (vnode) {
+ registerRef(vnode, true);
+ }
+};
+
+function registerRef (vnode, isRemoval) {
+ var key = vnode.data.ref;
+ if (!key) { return }
+
+ var vm = vnode.context;
+ var ref = vnode.componentInstance || vnode.elm;
+ var refs = vm.$refs;
+ if (isRemoval) {
+ if (Array.isArray(refs[key])) {
+ remove(refs[key], ref);
+ } else if (refs[key] === ref) {
+ refs[key] = undefined;
+ }
+ } else {
+ if (vnode.data.refInFor) {
+ if (!Array.isArray(refs[key])) {
+ refs[key] = [ref];
+ } else if (refs[key].indexOf(ref) < 0) {
+ // $flow-disable-line
+ refs[key].push(ref);
+ }
+ } else {
+ refs[key] = ref;
+ }
+ }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+var emptyNode = new VNode('', {}, []);
+
+var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function sameVnode (a, b) {
+ return (
+ a.key === b.key && (
+ (
+ a.tag === b.tag &&
+ a.isComment === b.isComment &&
+ isDef(a.data) === isDef(b.data) &&
+ sameInputType(a, b)
+ ) || (
+ isTrue(a.isAsyncPlaceholder) &&
+ a.asyncFactory === b.asyncFactory &&
+ isUndef(b.asyncFactory.error)
+ )
+ )
+ )
+}
+
+function sameInputType (a, b) {
+ if (a.tag !== 'input') { return true }
+ var i;
+ var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+ var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+ return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+ var i, key;
+ var map = {};
+ for (i = beginIdx; i <= endIdx; ++i) {
+ key = children[i].key;
+ if (isDef(key)) { map[key] = i; }
+ }
+ return map
+}
+
+function createPatchFunction (backend) {
+ var i, j;
+ var cbs = {};
+
+ var modules = backend.modules;
+ var nodeOps = backend.nodeOps;
+
+ for (i = 0; i < hooks.length; ++i) {
+ cbs[hooks[i]] = [];
+ for (j = 0; j < modules.length; ++j) {
+ if (isDef(modules[j][hooks[i]])) {
+ cbs[hooks[i]].push(modules[j][hooks[i]]);
+ }
+ }
+ }
+
+ function emptyNodeAt (elm) {
+ return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+ }
+
+ function createRmCb (childElm, listeners) {
+ function remove () {
+ if (--remove.listeners === 0) {
+ removeNode(childElm);
+ }
+ }
+ remove.listeners = listeners;
+ return remove
+ }
+
+ function removeNode (el) {
+ var parent = nodeOps.parentNode(el);
+ // element may have already been removed due to v-html / v-text
+ if (isDef(parent)) {
+ nodeOps.removeChild(parent, el);
+ }
+ }
+
+ function isUnknownElement$$1 (vnode, inVPre) {
+ return (
+ !inVPre &&
+ !vnode.ns &&
+ !(
+ config.ignoredElements.length &&
+ config.ignoredElements.some(function (ignore) {
+ return isRegExp(ignore)
+ ? ignore.test(vnode.tag)
+ : ignore === vnode.tag
+ })
+ ) &&
+ config.isUnknownElement(vnode.tag)
+ )
+ }
+
+ var creatingElmInVPre = 0;
+ function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+ vnode.isRootInsert = !nested; // for transition enter check
+ if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+ return
+ }
+
+ var data = vnode.data;
+ var children = vnode.children;
+ var tag = vnode.tag;
+ if (isDef(tag)) {
+ {
+ if (data && data.pre) {
+ creatingElmInVPre++;
+ }
+ if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+ warn(
+ 'Unknown custom element: <' + tag + '> - did you ' +
+ 'register the component correctly? For recursive components, ' +
+ 'make sure to provide the "name" option.',
+ vnode.context
+ );
+ }
+ }
+ vnode.elm = vnode.ns
+ ? nodeOps.createElementNS(vnode.ns, tag)
+ : nodeOps.createElement(tag, vnode);
+ setScope(vnode);
+
+ /* istanbul ignore if */
+ {
+ createChildren(vnode, children, insertedVnodeQueue);
+ if (isDef(data)) {
+ invokeCreateHooks(vnode, insertedVnodeQueue);
+ }
+ insert(parentElm, vnode.elm, refElm);
+ }
+
+ if ("development" !== 'production' && data && data.pre) {
+ creatingElmInVPre--;
+ }
+ } else if (isTrue(vnode.isComment)) {
+ vnode.elm = nodeOps.createComment(vnode.text);
+ insert(parentElm, vnode.elm, refElm);
+ } else {
+ vnode.elm = nodeOps.createTextNode(vnode.text);
+ insert(parentElm, vnode.elm, refElm);
+ }
+ }
+
+ function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+ var i = vnode.data;
+ if (isDef(i)) {
+ var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+ if (isDef(i = i.hook) && isDef(i = i.init)) {
+ i(vnode, false /* hydrating */, parentElm, refElm);
+ }
+ // after calling the init hook, if the vnode is a child component
+ // it should've created a child instance and mounted it. the child
+ // component also has set the placeholder vnode's elm.
+ // in that case we can just return the element and be done.
+ if (isDef(vnode.componentInstance)) {
+ initComponent(vnode, insertedVnodeQueue);
+ if (isTrue(isReactivated)) {
+ reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+ }
+ return true
+ }
+ }
+ }
+
+ function initComponent (vnode, insertedVnodeQueue) {
+ if (isDef(vnode.data.pendingInsert)) {
+ insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+ vnode.data.pendingInsert = null;
+ }
+ vnode.elm = vnode.componentInstance.$el;
+ if (isPatchable(vnode)) {
+ invokeCreateHooks(vnode, insertedVnodeQueue);
+ setScope(vnode);
+ } else {
+ // empty component root.
+ // skip all element-related modules except for ref (#3455)
+ registerRef(vnode);
+ // make sure to invoke the insert hook
+ insertedVnodeQueue.push(vnode);
+ }
+ }
+
+ function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+ var i;
+ // hack for #4339: a reactivated component with inner transition
+ // does not trigger because the inner node's created hooks are not called
+ // again. It's not ideal to involve module-specific logic in here but
+ // there doesn't seem to be a better way to do it.
+ var innerNode = vnode;
+ while (innerNode.componentInstance) {
+ innerNode = innerNode.componentInstance._vnode;
+ if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+ for (i = 0; i < cbs.activate.length; ++i) {
+ cbs.activate[i](emptyNode, innerNode);
+ }
+ insertedVnodeQueue.push(innerNode);
+ break
+ }
+ }
+ // unlike a newly created component,
+ // a reactivated keep-alive component doesn't insert itself
+ insert(parentElm, vnode.elm, refElm);
+ }
+
+ function insert (parent, elm, ref$$1) {
+ if (isDef(parent)) {
+ if (isDef(ref$$1)) {
+ if (ref$$1.parentNode === parent) {
+ nodeOps.insertBefore(parent, elm, ref$$1);
+ }
+ } else {
+ nodeOps.appendChild(parent, elm);
+ }
+ }
+ }
+
+ function createChildren (vnode, children, insertedVnodeQueue) {
+ if (Array.isArray(children)) {
+ {
+ checkDuplicateKeys(children);
+ }
+ for (var i = 0; i < children.length; ++i) {
+ createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+ }
+ } else if (isPrimitive(vnode.text)) {
+ nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+ }
+ }
+
+ function isPatchable (vnode) {
+ while (vnode.componentInstance) {
+ vnode = vnode.componentInstance._vnode;
+ }
+ return isDef(vnode.tag)
+ }
+
+ function invokeCreateHooks (vnode, insertedVnodeQueue) {
+ for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+ cbs.create[i$1](emptyNode, vnode);
+ }
+ i = vnode.data.hook; // Reuse variable
+ if (isDef(i)) {
+ if (isDef(i.create)) { i.create(emptyNode, vnode); }
+ if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+ }
+ }
+
+ // set scope id attribute for scoped CSS.
+ // this is implemented as a special case to avoid the overhead
+ // of going through the normal attribute patching process.
+ function setScope (vnode) {
+ var i;
+ if (isDef(i = vnode.fnScopeId)) {
+ nodeOps.setAttribute(vnode.elm, i, '');
+ } else {
+ var ancestor = vnode;
+ while (ancestor) {
+ if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+ nodeOps.setAttribute(vnode.elm, i, '');
+ }
+ ancestor = ancestor.parent;
+ }
+ }
+ // for slot content they should also get the scopeId from the host instance.
+ if (isDef(i = activeInstance) &&
+ i !== vnode.context &&
+ i !== vnode.fnContext &&
+ isDef(i = i.$options._scopeId)
+ ) {
+ nodeOps.setAttribute(vnode.elm, i, '');
+ }
+ }
+
+ function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+ for (; startIdx <= endIdx; ++startIdx) {
+ createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+ }
+ }
+
+ function invokeDestroyHook (vnode) {
+ var i, j;
+ var data = vnode.data;
+ if (isDef(data)) {
+ if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+ for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+ }
+ if (isDef(i = vnode.children)) {
+ for (j = 0; j < vnode.children.length; ++j) {
+ invokeDestroyHook(vnode.children[j]);
+ }
+ }
+ }
+
+ function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+ for (; startIdx <= endIdx; ++startIdx) {
+ var ch = vnodes[startIdx];
+ if (isDef(ch)) {
+ if (isDef(ch.tag)) {
+ removeAndInvokeRemoveHook(ch);
+ invokeDestroyHook(ch);
+ } else { // Text node
+ removeNode(ch.elm);
+ }
+ }
+ }
+ }
+
+ function removeAndInvokeRemoveHook (vnode, rm) {
+ if (isDef(rm) || isDef(vnode.data)) {
+ var i;
+ var listeners = cbs.remove.length + 1;
+ if (isDef(rm)) {
+ // we have a recursively passed down rm callback
+ // increase the listeners count
+ rm.listeners += listeners;
+ } else {
+ // directly removing
+ rm = createRmCb(vnode.elm, listeners);
+ }
+ // recursively invoke hooks on child component root node
+ if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+ removeAndInvokeRemoveHook(i, rm);
+ }
+ for (i = 0; i < cbs.remove.length; ++i) {
+ cbs.remove[i](vnode, rm);
+ }
+ if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+ i(vnode, rm);
+ } else {
+ rm();
+ }
+ } else {
+ removeNode(vnode.elm);
+ }
+ }
+
+ function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+ var oldStartIdx = 0;
+ var newStartIdx = 0;
+ var oldEndIdx = oldCh.length - 1;
+ var oldStartVnode = oldCh[0];
+ var oldEndVnode = oldCh[oldEndIdx];
+ var newEndIdx = newCh.length - 1;
+ var newStartVnode = newCh[0];
+ var newEndVnode = newCh[newEndIdx];
+ var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+ // removeOnly is a special flag used only by
+ // to ensure removed elements stay in correct relative positions
+ // during leaving transitions
+ var canMove = !removeOnly;
+
+ {
+ checkDuplicateKeys(newCh);
+ }
+
+ while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+ if (isUndef(oldStartVnode)) {
+ oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+ } else if (isUndef(oldEndVnode)) {
+ oldEndVnode = oldCh[--oldEndIdx];
+ } else if (sameVnode(oldStartVnode, newStartVnode)) {
+ patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+ oldStartVnode = oldCh[++oldStartIdx];
+ newStartVnode = newCh[++newStartIdx];
+ } else if (sameVnode(oldEndVnode, newEndVnode)) {
+ patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+ oldEndVnode = oldCh[--oldEndIdx];
+ newEndVnode = newCh[--newEndIdx];
+ } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+ patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+ canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+ oldStartVnode = oldCh[++oldStartIdx];
+ newEndVnode = newCh[--newEndIdx];
+ } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+ patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+ canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+ oldEndVnode = oldCh[--oldEndIdx];
+ newStartVnode = newCh[++newStartIdx];
+ } else {
+ if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+ idxInOld = isDef(newStartVnode.key)
+ ? oldKeyToIdx[newStartVnode.key]
+ : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+ if (isUndef(idxInOld)) { // New element
+ createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+ } else {
+ vnodeToMove = oldCh[idxInOld];
+ if (sameVnode(vnodeToMove, newStartVnode)) {
+ patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+ oldCh[idxInOld] = undefined;
+ canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+ } else {
+ // same key but different element. treat as new element
+ createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+ }
+ }
+ newStartVnode = newCh[++newStartIdx];
+ }
+ }
+ if (oldStartIdx > oldEndIdx) {
+ refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+ addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+ } else if (newStartIdx > newEndIdx) {
+ removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+ }
+ }
+
+ function checkDuplicateKeys (children) {
+ var seenKeys = {};
+ for (var i = 0; i < children.length; i++) {
+ var vnode = children[i];
+ var key = vnode.key;
+ if (isDef(key)) {
+ if (seenKeys[key]) {
+ warn(
+ ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+ vnode.context
+ );
+ } else {
+ seenKeys[key] = true;
+ }
+ }
+ }
+ }
+
+ function findIdxInOld (node, oldCh, start, end) {
+ for (var i = start; i < end; i++) {
+ var c = oldCh[i];
+ if (isDef(c) && sameVnode(node, c)) { return i }
+ }
+ }
+
+ function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+ if (oldVnode === vnode) {
+ return
+ }
+
+ var elm = vnode.elm = oldVnode.elm;
+
+ if (isTrue(oldVnode.isAsyncPlaceholder)) {
+ if (isDef(vnode.asyncFactory.resolved)) {
+ hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+ } else {
+ vnode.isAsyncPlaceholder = true;
+ }
+ return
+ }
+
+ // reuse element for static trees.
+ // note we only do this if the vnode is cloned -
+ // if the new node is not cloned it means the render functions have been
+ // reset by the hot-reload-api and we need to do a proper re-render.
+ if (isTrue(vnode.isStatic) &&
+ isTrue(oldVnode.isStatic) &&
+ vnode.key === oldVnode.key &&
+ (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+ ) {
+ vnode.componentInstance = oldVnode.componentInstance;
+ return
+ }
+
+ var i;
+ var data = vnode.data;
+ if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+ i(oldVnode, vnode);
+ }
+
+ var oldCh = oldVnode.children;
+ var ch = vnode.children;
+ if (isDef(data) && isPatchable(vnode)) {
+ for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+ if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+ }
+ if (isUndef(vnode.text)) {
+ if (isDef(oldCh) && isDef(ch)) {
+ if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+ } else if (isDef(ch)) {
+ if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+ addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+ } else if (isDef(oldCh)) {
+ removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+ } else if (isDef(oldVnode.text)) {
+ nodeOps.setTextContent(elm, '');
+ }
+ } else if (oldVnode.text !== vnode.text) {
+ nodeOps.setTextContent(elm, vnode.text);
+ }
+ if (isDef(data)) {
+ if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+ }
+ }
+
+ function invokeInsertHook (vnode, queue, initial) {
+ // delay insert hooks for component root nodes, invoke them after the
+ // element is really inserted
+ if (isTrue(initial) && isDef(vnode.parent)) {
+ vnode.parent.data.pendingInsert = queue;
+ } else {
+ for (var i = 0; i < queue.length; ++i) {
+ queue[i].data.hook.insert(queue[i]);
+ }
+ }
+ }
+
+ var hydrationBailed = false;
+ // list of modules that can skip create hook during hydration because they
+ // are already rendered on the client or has no need for initialization
+ // Note: style is excluded because it relies on initial clone for future
+ // deep updates (#7063).
+ var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+ // Note: this is a browser-only function so we can assume elms are DOM nodes.
+ function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+ var i;
+ var tag = vnode.tag;
+ var data = vnode.data;
+ var children = vnode.children;
+ inVPre = inVPre || (data && data.pre);
+ vnode.elm = elm;
+
+ if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+ vnode.isAsyncPlaceholder = true;
+ return true
+ }
+ // assert node match
+ {
+ if (!assertNodeMatch(elm, vnode, inVPre)) {
+ return false
+ }
+ }
+ if (isDef(data)) {
+ if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+ if (isDef(i = vnode.componentInstance)) {
+ // child component. it should have hydrated its own tree.
+ initComponent(vnode, insertedVnodeQueue);
+ return true
+ }
+ }
+ if (isDef(tag)) {
+ if (isDef(children)) {
+ // empty element, allow client to pick up and populate children
+ if (!elm.hasChildNodes()) {
+ createChildren(vnode, children, insertedVnodeQueue);
+ } else {
+ // v-html and domProps: innerHTML
+ if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+ if (i !== elm.innerHTML) {
+ /* istanbul ignore if */
+ if ("development" !== 'production' &&
+ typeof console !== 'undefined' &&
+ !hydrationBailed
+ ) {
+ hydrationBailed = true;
+ console.warn('Parent: ', elm);
+ console.warn('server innerHTML: ', i);
+ console.warn('client innerHTML: ', elm.innerHTML);
+ }
+ return false
+ }
+ } else {
+ // iterate and compare children lists
+ var childrenMatch = true;
+ var childNode = elm.firstChild;
+ for (var i$1 = 0; i$1 < children.length; i$1++) {
+ if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+ childrenMatch = false;
+ break
+ }
+ childNode = childNode.nextSibling;
+ }
+ // if childNode is not null, it means the actual childNodes list is
+ // longer than the virtual children list.
+ if (!childrenMatch || childNode) {
+ /* istanbul ignore if */
+ if ("development" !== 'production' &&
+ typeof console !== 'undefined' &&
+ !hydrationBailed
+ ) {
+ hydrationBailed = true;
+ console.warn('Parent: ', elm);
+ console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+ }
+ return false
+ }
+ }
+ }
+ }
+ if (isDef(data)) {
+ var fullInvoke = false;
+ for (var key in data) {
+ if (!isRenderedModule(key)) {
+ fullInvoke = true;
+ invokeCreateHooks(vnode, insertedVnodeQueue);
+ break
+ }
+ }
+ if (!fullInvoke && data['class']) {
+ // ensure collecting deps for deep class bindings for future updates
+ traverse(data['class']);
+ }
+ }
+ } else if (elm.data !== vnode.text) {
+ elm.data = vnode.text;
+ }
+ return true
+ }
+
+ function assertNodeMatch (node, vnode, inVPre) {
+ if (isDef(vnode.tag)) {
+ return vnode.tag.indexOf('vue-component') === 0 || (
+ !isUnknownElement$$1(vnode, inVPre) &&
+ vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+ )
+ } else {
+ return node.nodeType === (vnode.isComment ? 8 : 3)
+ }
+ }
+
+ return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+ if (isUndef(vnode)) {
+ if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+ return
+ }
+
+ var isInitialPatch = false;
+ var insertedVnodeQueue = [];
+
+ if (isUndef(oldVnode)) {
+ // empty mount (likely as component), create new root element
+ isInitialPatch = true;
+ createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+ } else {
+ var isRealElement = isDef(oldVnode.nodeType);
+ if (!isRealElement && sameVnode(oldVnode, vnode)) {
+ // patch existing root node
+ patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+ } else {
+ if (isRealElement) {
+ // mounting to a real element
+ // check if this is server-rendered content and if we can perform
+ // a successful hydration.
+ if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+ oldVnode.removeAttribute(SSR_ATTR);
+ hydrating = true;
+ }
+ if (isTrue(hydrating)) {
+ if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+ invokeInsertHook(vnode, insertedVnodeQueue, true);
+ return oldVnode
+ } else {
+ warn(
+ 'The client-side rendered virtual DOM tree is not matching ' +
+ 'server-rendered content. This is likely caused by incorrect ' +
+ 'HTML markup, for example nesting block-level elements inside ' +
+ '
, or missing
. Bailing hydration and performing ' +
+ 'full client-side render.'
+ );
+ }
+ }
+ // either not server-rendered, or hydration failed.
+ // create an empty node and replace it
+ oldVnode = emptyNodeAt(oldVnode);
+ }
+
+ // replacing existing element
+ var oldElm = oldVnode.elm;
+ var parentElm$1 = nodeOps.parentNode(oldElm);
+
+ // create new node
+ createElm(
+ vnode,
+ insertedVnodeQueue,
+ // extremely rare edge case: do not insert if old element is in a
+ // leaving transition. Only happens when combining transition +
+ // keep-alive + HOCs. (#4590)
+ oldElm._leaveCb ? null : parentElm$1,
+ nodeOps.nextSibling(oldElm)
+ );
+
+ // update parent placeholder node element, recursively
+ if (isDef(vnode.parent)) {
+ var ancestor = vnode.parent;
+ var patchable = isPatchable(vnode);
+ while (ancestor) {
+ for (var i = 0; i < cbs.destroy.length; ++i) {
+ cbs.destroy[i](ancestor);
+ }
+ ancestor.elm = vnode.elm;
+ if (patchable) {
+ for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+ cbs.create[i$1](emptyNode, ancestor);
+ }
+ // #6513
+ // invoke insert hooks that may have been merged by create hooks.
+ // e.g. for directives that uses the "inserted" hook.
+ var insert = ancestor.data.hook.insert;
+ if (insert.merged) {
+ // start at index 1 to avoid re-invoking component mounted hook
+ for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+ insert.fns[i$2]();
+ }
+ }
+ } else {
+ registerRef(ancestor);
+ }
+ ancestor = ancestor.parent;
+ }
+ }
+
+ // destroy old node
+ if (isDef(parentElm$1)) {
+ removeVnodes(parentElm$1, [oldVnode], 0, 0);
+ } else if (isDef(oldVnode.tag)) {
+ invokeDestroyHook(oldVnode);
+ }
+ }
+ }
+
+ invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+ return vnode.elm
+ }
+}
+
+/* */
+
+var directives = {
+ create: updateDirectives,
+ update: updateDirectives,
+ destroy: function unbindDirectives (vnode) {
+ updateDirectives(vnode, emptyNode);
+ }
+};
+
+function updateDirectives (oldVnode, vnode) {
+ if (oldVnode.data.directives || vnode.data.directives) {
+ _update(oldVnode, vnode);
+ }
+}
+
+function _update (oldVnode, vnode) {
+ var isCreate = oldVnode === emptyNode;
+ var isDestroy = vnode === emptyNode;
+ var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+ var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+ var dirsWithInsert = [];
+ var dirsWithPostpatch = [];
+
+ var key, oldDir, dir;
+ for (key in newDirs) {
+ oldDir = oldDirs[key];
+ dir = newDirs[key];
+ if (!oldDir) {
+ // new directive, bind
+ callHook$1(dir, 'bind', vnode, oldVnode);
+ if (dir.def && dir.def.inserted) {
+ dirsWithInsert.push(dir);
+ }
+ } else {
+ // existing directive, update
+ dir.oldValue = oldDir.value;
+ callHook$1(dir, 'update', vnode, oldVnode);
+ if (dir.def && dir.def.componentUpdated) {
+ dirsWithPostpatch.push(dir);
+ }
+ }
+ }
+
+ if (dirsWithInsert.length) {
+ var callInsert = function () {
+ for (var i = 0; i < dirsWithInsert.length; i++) {
+ callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+ }
+ };
+ if (isCreate) {
+ mergeVNodeHook(vnode, 'insert', callInsert);
+ } else {
+ callInsert();
+ }
+ }
+
+ if (dirsWithPostpatch.length) {
+ mergeVNodeHook(vnode, 'postpatch', function () {
+ for (var i = 0; i < dirsWithPostpatch.length; i++) {
+ callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+ }
+ });
+ }
+
+ if (!isCreate) {
+ for (key in oldDirs) {
+ if (!newDirs[key]) {
+ // no longer present, unbind
+ callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+ }
+ }
+ }
+}
+
+var emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+ dirs,
+ vm
+) {
+ var res = Object.create(null);
+ if (!dirs) {
+ // $flow-disable-line
+ return res
+ }
+ var i, dir;
+ for (i = 0; i < dirs.length; i++) {
+ dir = dirs[i];
+ if (!dir.modifiers) {
+ // $flow-disable-line
+ dir.modifiers = emptyModifiers;
+ }
+ res[getRawDirName(dir)] = dir;
+ dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+ }
+ // $flow-disable-line
+ return res
+}
+
+function getRawDirName (dir) {
+ return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+ var fn = dir.def && dir.def[hook];
+ if (fn) {
+ try {
+ fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+ } catch (e) {
+ handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+ }
+ }
+}
+
+var baseModules = [
+ ref,
+ directives
+];
+
+/* */
+
+function updateAttrs (oldVnode, vnode) {
+ var opts = vnode.componentOptions;
+ if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+ return
+ }
+ if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+ return
+ }
+ var key, cur, old;
+ var elm = vnode.elm;
+ var oldAttrs = oldVnode.data.attrs || {};
+ var attrs = vnode.data.attrs || {};
+ // clone observed objects, as the user probably wants to mutate it
+ if (isDef(attrs.__ob__)) {
+ attrs = vnode.data.attrs = extend({}, attrs);
+ }
+
+ for (key in attrs) {
+ cur = attrs[key];
+ old = oldAttrs[key];
+ if (old !== cur) {
+ setAttr(elm, key, cur);
+ }
+ }
+ // #4391: in IE9, setting type can reset value for input[type=radio]
+ // #6666: IE/Edge forces progress value down to 1 before setting a max
+ /* istanbul ignore if */
+ if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+ setAttr(elm, 'value', attrs.value);
+ }
+ for (key in oldAttrs) {
+ if (isUndef(attrs[key])) {
+ if (isXlink(key)) {
+ elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+ } else if (!isEnumeratedAttr(key)) {
+ elm.removeAttribute(key);
+ }
+ }
+ }
+}
+
+function setAttr (el, key, value) {
+ if (isBooleanAttr(key)) {
+ // set attribute for blank value
+ // e.g.
+ if (isFalsyAttrValue(value)) {
+ el.removeAttribute(key);
+ } else {
+ // technically allowfullscreen is a boolean attribute for