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paper-swatch-picker.js
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/**
@license
Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
*/
/**
This is a simple color picker element that will allow you to choose one
of the Material Design colors from a list of available swatches.
Example:
<paper-swatch-picker></paper-swatch-picker>
<paper-swatch-picker color="{{selectedColor}}"></paper-swatch-picker>
You can configure the color palette being used using the `colorList` array and
the `columnCount` property, which specifies how many "generic" colours (i.e. columns
in the picker) you want to display.
<paper-swatch-picker column-count=5 color-list='["#65a5f2", "#83be54", "#f0d551", "#e5943c", "#a96ddb"]'></paper-swatch-picker>
### Styling
The following custom properties and mixins are available for styling:
Custom property | Description | Default
----------------|-------------|----------
`--paper-swatch-picker-color-size` | The size of each of the color boxes | `20px`
`--paper-swatch-picker-icon-size` | The size of the color picker icon | `24px`
`--paper-swatch-picker-icon` | Mixin applied to the color picker icon | `{}`
@element paper-swatch-picker
@demo demo/index.html
*/
/*
FIXME(polymer-modulizer): the above comments were extracted
from HTML and may be out of place here. Review them and
then delete this comment!
*/
import '../../@polymer/polymer/polymer-legacy.js';
import '../../@polymer/iron-flex-layout/iron-flex-layout.js';
import '../../@polymer/paper-icon-button/paper-icon-button.js';
import '../../@polymer/paper-item/paper-item.js';
import '../../@polymer/paper-listbox/paper-listbox.js';
import '../../@polymer/paper-menu-button/paper-menu-button.js';
import './paper-swatch-picker-icon.js';
import { Polymer } from '../../@polymer/polymer/lib/legacy/polymer-fn.js';
import { html } from '../../@polymer/polymer/lib/utils/html-tag.js';
Polymer({
_template: html`
<style>
:host {
display: inline-block;
position: relative;
}
:host(:focus) {
outline: none;
}
.color {
box-sizing: border-box;
width: var(--paper-swatch-picker-color-size, 25px);
height: var(--paper-swatch-picker-color-size, 25px);
display: inline-block;
padding: 0;
margin: 0;
cursor: pointer;
font-size: 0;
position: relative;
}
.rgbaColor {
box-sizing: border-box;
width: var(--paper-swatch-picker-color-size, 40px);
height: var(--paper-swatch-picker-color-size, 40px);
display: inline-block;
padding: 0;
margin-right: 35px;
cursor: pointer;
font-size: 0;
position: relative;
}
/* If we just scale the paper-item when hovering, this will end up
* adding scrollbars to the paper-listbox that are hard to get rid of.
* An easy workaround is to use an :after pseudo element instead. */
.color:after, .rgbaColor:after {
@apply(--layout-fit);
background: currentColor;
content: '';
-webkit-transition: -webkit-transform 0.2s;
transition: transform .2s;
z-index: 0;
}
.color:hover:after, .rgbaColor:hover:after {
-webkit-transform: scale(1.2, 1.2);
transform: scale(1.2, 1.2);
outline: none;
z-index: 1;
}
.rgbaPicker {
width: 100px;
height: 150px;
margin: 0px 15px 0px;
display: inline-block;
}
.rgbaInput {
display: inline-block;
width: 50px;
margin-left: 5px;
/* height: 20px; */
}
.rgbaRow {
display: flex;
align-items: flex-end;
margin-top: 5px;
height: 30px;
}
.rgbaRow span {
margin-bottom: 5px;
}
paper-menu-button {
@apply(--paper-swatch-picker-button);
}
paper-icon-button {
@apply(--paper-swatch-picker-icon);
}
paper-item {
margin: 0;
padding: 0;
min-height: 0;
--paper-item-focused-before: {
opacity: 0;
};
}
paper-listbox {
padding: 0;
font-size: 0;
overflow: hidden;
@apply(--layout-vertical);
@apply(--layout-wrap);
}
#customColor {
border:1px solid black;
}
#iconButton {
height: 24px;
width: 24px;
@apply --shadow-elevation-2dp;
border-radius: 4px;
box-sizing: border-box;
}
</style>
<paper-menu-button id="menu" vertical-align="[[verticalAlign]]" horizontal-align="[[horizontalAlign]]" no-overlap="[[noOverlap]]">
<!--<paper-icon-button-->
<!-- id="iconButton"-->
<!-- icon="[[icon]]"-->
<!-- slot="dropdown-trigger" class="dropdown-trigger"-->
<!-- alt="color picker"-->
<!-- noink\$="[[noink]]">-->
<!--</paper-icon-button>-->
<div id="iconButton" slot="dropdown-trigger" class="dropdown-trigger" alt="color picker"></div>
<div slot="dropdown-content">
<slot></slot>
<div style="display: flex; flex-direction: row; align-items: center; padding: 10px">
<paper-listbox class="dropdown-content" id="container">
<template is="dom-repeat" items="{{colorList}}">
<paper-item class="color">{{item}}</paper-item>
</template>
</paper-listbox>
<div class="rgbaPicker">
<div class="rgbaRow">
<span style="margin-right: 3.109px">r:</span><paper-input id="rValue" no-label-float="" class="rgbaInput" value="{{rgbaR}}" type="number" min="0" max="255" step="1"></paper-input>
</div>
<div class="rgbaRow">
<span>g:</span><paper-input id="gValue" no-label-float="" class="rgbaInput" value="{{rgbaG}}" type="number" min="0" max="255" step="1"></paper-input>
</div>
<div class="rgbaRow">
<span>b:</span><paper-input id="bValue" no-label-float="" class="rgbaInput" value="{{rgbaB}}" type="number" min="0" max="255" step="1"></paper-input>
</div>
<div class="rgbaRow">
<span>a:</span><paper-input id="aValue" no-label-float="" class="rgbaInput" value="{{rgbaA}}" type="number" min="0" max="1" step="0.1"></paper-input>
</div>
</div>
<paper-item style\$="color: rgba([[rgbaR]], [[rgbaG]], [[rgbaB]], [[rgbaA]])" id="customColor" class="rgbaColor" on-click="_onColorTap"></paper-item>
</div>
</div>
</paper-menu-button>
`,
is: 'paper-swatch-picker',
hostAttributes: {
'tabindex': 0
},
listeners: {
'paper-dropdown-open': '_onOpen',
'iron-select': '_onColorTap'
},
/**
* Fired when a color has been selected
*
* @event color-picker-selected
*/
properties: {
/**
* The selected color, as hex (i.e. #ffffff).
* value.
*/
color: {
type: String,
notify: true,
observer: '_colorChanged'
},
rgbaR: {
type: Number,
value: 0
},
rgbaG: {
type: Number,
value: 0
},
rgbaB: {
type: Number,
value: 0
},
rgbaA: {
type: Number,
value: 1
},
/**
* The colors to be displayed. By default, these are the Material Design
* colors. This array is arranged by "generic color", so for example,
* all the reds (from light to dark), then the pinks, then the blues, etc.
* Depending on how many of these generic colors you have, you should
* update the `columnCount` property.
*/
colorList: {
type: Array,
value: function() {
return this.defaultColors();
},
observer: '_colorListChanged'
},
/* The number of columns to display in the picker. This corresponds to
* the number of generic colors (i.e. not counting the light/dark) variants
* of a specific color) you are using in your `colorList`. For example,
* the Material Design palette has 18 colors */
columnCount: {
type: Number,
value: 18,
observer: '_columnCountChanged'
},
noOverlap:{
type:Boolean,
reflectToAttribute:true
},
/**
* The orientation against which to align the menu dropdown
* horizontally relative to the dropdown trigger.
*/
horizontalAlign: {
type: String,
value: 'left',
reflectToAttribute: true
},
/**
* The orientation against which to align the menu dropdown
* vertically relative to the dropdown trigger.
*/
verticalAlign: {
type: String,
value: 'top',
reflectToAttribute: true
},
/**
* The name of the icon to use for the button used as a dropdown trigger.
* The name should be of the form: `iconset_name:icon_name`.
* You must manually import the icon/iconset you wish you use.
*/
icon: {
type: String,
value: 'swatch:format-color-fill'
},
/**
* If true, the color picker button will not produce a ripple effect when interacted
* with via the pointer.
*/
noink: {
type: Boolean
}
},
created: function() {
// Note: we won't actually render these color boxes unless the menu is
// actually tapped.
this._renderedColors = false;
},
attached: function() {
this._updateSize();
},
/**
* Returns the default Material Design colors.
*
* @return {Array[string]}
*/
defaultColors: function() {
return [
// '#ffffff', '#ffcdd2', '#ef9a9a', '#e57373', '#ef5350', '#f44336', '#e53935', '#d32f2f', '#c62828', '#b71c1c',
// '#fce4ec', '#f8bbd0', '#f48fb1', '#f06292', '#ec407a', '#e91e63', '#d81b60', '#c2185b', '#ad1457', '#880e4f',
// '#f3e5f5', '#e1bee7', '#ce93d8', '#ba68c8', '#ab47bc', '#9c27b0', '#8e24aa', '#7b1fa2', '#6a1b9a', '#4a148c',
// '#ede7f6', '#d1c4e9', '#b39ddb', '#9575cd', '#7e57c2', '#673ab7', '#5e35b1', '#512da8', '#4527a0', '#311b92',
// '#e8eaf6', '#c5cae9', '#9fa8da', '#7986cb', '#5c6bc0', '#3f51b5', '#3949ab', '#303f9f', '#283593', '#1a237e',
// '#e3f2fd', '#bbdefb', '#90caf9', '#64b5f6', '#42a5f5', '#2196f3', '#1e88e5', '#1976d2', '#1565c0', '#0d47a1',
// '#e1f5fe', '#b3e5fc', '#81d4fa', '#4fc3f7', '#29b6f6', '#03a9f4', '#039be5', '#0288d1', '#0277bd', '#01579b',
// '#e0f7fa', '#b2ebf2', '#80deea', '#4dd0e1', '#26c6da', '#00bcd4', '#00acc1', '#0097a7', '#00838f', '#006064',
// '#e0f2f1', '#b2dfdb', '#80cbc4', '#4db6ac', '#26a69a', '#009688', '#00897b', '#00796b', '#00695c', '#004d40',
// '#e8f5e9', '#c8e6c9', '#a5d6a7', '#81c784', '#66bb6a', '#4caf50', '#43a047', '#388e3c', '#2e7d32', '#1b5e20',
// '#f1f8e9', '#dcedc8', '#c5e1a5', '#aed581', '#9ccc65', '#8bc34a', '#7cb342', '#689f38', '#558b2f', '#33691e',
// '#f9fbe7', '#f0f4c3', '#e6ee9c', '#dce775', '#d4e157', '#cddc39', '#c0ca33', '#afb42b', '#9e9d24', '#827717',
// '#fffde7', '#fff9c4', '#fff59d', '#fff176', '#ffee58', '#ffeb3b', '#fdd835', '#fbc02d', '#f9a825', '#f57f17',
// '#fff8e1', '#ffecb3', '#ffe082', '#ffd54f', '#ffca28', '#ffc107', '#ffb300', '#ffa000', '#ff8f00', '#ff6f00',
// '#fff3e0', '#ffe0b2', '#ffcc80', '#ffb74d', '#ffa726', '#ff9800', '#fb8c00', '#f57c00', '#ef6c00', '#e65100',
// '#fbe9e7', '#ffccbc', '#ffab91', '#ff8a65', '#ff7043', '#ff5722', '#f4511e', '#e64a19', '#d84315', '#bf360c',
// '#efebe9', '#d7ccc8', '#bcaaa4', '#a1887f', '#8d6e63', '#795548', '#6d4c41', '#5d4037', '#4e342e', '#3e2723',
// '#fafafa', '#f5f5f5', '#eeeeee', '#e0e0e0', '#bdbdbd', '#9e9e9e', '#757575', '#616161', '#424242', '#000000'
'#ffebee', '#ffcdd2', '#ef9a9a', '#e57373', '#ef5350', '#f44336', '#e53935', '#d32f2f', '#c62828', '#b71c1c',
'#fce4ec', '#f8bbd0', '#f48fb1', '#f06292', '#ec407a', '#e91e63', '#d81b60', '#c2185b', '#ad1457', '#880e4f',
'#f3e5f5', '#e1bee7', '#ce93d8', '#ba68c8', '#ab47bc', '#9c27b0', '#8e24aa', '#7b1fa2', '#6a1b9a', '#4a148c',
'#ede7f6', '#d1c4e9', '#b39ddb', '#9575cd', '#7e57c2', '#673ab7', '#5e35b1', '#512da8', '#4527a0', '#311b92',
'#e8eaf6', '#c5cae9', '#9fa8da', '#7986cb', '#5c6bc0', '#3f51b5', '#3949ab', '#303f9f', '#283593', '#1a237e',
'#e3f2fd', '#bbdefb', '#90caf9', '#64b5f6', '#42a5f5', '#2196f3', '#1e88e5', '#1976d2', '#1565c0', '#0d47a1',
'#e1f5fe', '#b3e5fc', '#81d4fa', '#4fc3f7', '#29b6f6', '#03a9f4', '#039be5', '#0288d1', '#0277bd', '#01579b',
'#e0f7fa', '#b2ebf2', '#80deea', '#4dd0e1', '#26c6da', '#00bcd4', '#00acc1', '#0097a7', '#00838f', '#006064',
'#e0f2f1', '#b2dfdb', '#80cbc4', '#4db6ac', '#26a69a', '#009688', '#00897b', '#00796b', '#00695c', '#004d40',
'#e8f5e9', '#c8e6c9', '#a5d6a7', '#81c784', '#66bb6a', '#4caf50', '#43a047', '#388e3c', '#2e7d32', '#1b5e20',
'#f1f8e9', '#dcedc8', '#c5e1a5', '#aed581', '#9ccc65', '#8bc34a', '#7cb342', '#689f38', '#558b2f', '#33691e',
'#f9fbe7', '#f0f4c3', '#e6ee9c', '#dce775', '#d4e157', '#cddc39', '#c0ca33', '#afb42b', '#9e9d24', '#827717',
'#fffde7', '#fff9c4', '#fff59d', '#fff176', '#ffee58', '#ffeb3b', '#fdd835', '#fbc02d', '#f9a825', '#f57f17',
'#fff8e1', '#ffecb3', '#ffe082', '#ffd54f', '#ffca28', '#ffc107', '#ffb300', '#ffa000', '#ff8f00', '#ff6f00',
'#fff3e0', '#ffe0b2', '#ffcc80', '#ffb74d', '#ffa726', '#ff9800', '#fb8c00', '#f57c00', '#ef6c00', '#e65100',
'#fbe9e7', '#ffccbc', '#ffab91', '#ff8a65', '#ff7043', '#ff5722', '#f4511e', '#e64a19', '#d84315', '#bf360c',
'#efebe9', '#d7ccc8', '#bcaaa4', '#a1887f', '#8d6e63', '#795548', '#6d4c41', '#5d4037', '#4e342e', '#3e2723',
'#ffffff', '#f5f5f5', '#eeeeee', '#e0e0e0', '#bdbdbd', '#9e9e9e', '#757575', '#616161', '#424242', '#000000'
];
},
_onOpen: function() {
// Fill in the colors if we haven't already.
if (this._renderedColors)
return;
var colorBoxes = this.$.container.querySelectorAll('.color');
for (var i = 0; i < colorBoxes.length; i++) {
colorBoxes[i].style.color = colorBoxes[i].innerHTML;
}
this._renderedColors = true;
},
_addOverflowClass: function() {
this.$.container.toggleClass('opened', true);
},
_removeOverflowClass: function() {
this.$.container.toggleClass('opened', false);
},
_onColorTap: function(event) {
var item = event.detail.item;
if (item != undefined) {
// The inner `span` element has the background color;
this.color = w3color(item.style.color).toRgb();
this.rgbaR = this.color.r
this.rgbaG = this.color.g
this.rgbaB = this.color.b
this.rgbaA = this.color.a
}
else {
if (!Number.isInteger(Number(this.rgbaR)) || !Number.isInteger(Number(this.rgbaG)) || !Number.isInteger(Number(this.rgbaB)) || isNaN(this.rgbaA)
|| this.rgbaR < 0 || this.rgbaR > 255 || this.rgbaG < 0 || this.rgbaG > 255 || this.rgbaB < 0 || this.rgbaB > 255 || this.rgbaA < 0 || this.rgbaA > 1) {
this.fire('toast', 'Please enter valid numbers');
return;
}
else {
this.color = w3color('rgba(' + this.rgbaR + ',' + this.rgbaG + ',' + this.rgbaB + ',' + this.rgbaA + ')').toRgb();
}
this.$.menu.close();
}
this.color = 'rgba(' + this.rgbaR + ',' + this.rgbaG + ',' + this.rgbaB + ',' + this.rgbaA + ')'
this.fire('color-picker-selected', {color: this.color});
},
_colorChanged: function() {
this.$.iconButton.style.backgroundColor = this.color;
},
_colorListChanged: function() {
// Fall back to the first color, if the new color list doesn't contain the selected color
//if (this.color && this.color !== '' && this.colorList.indexOf(this.color) === -1) {
// this.color = this.colorList[0];
//}
this._updateSize();
},
_columnCountChanged: function() {
this._updateSize();
},
/**
* Takes an rgb(r, g, b) style string and converts it to a #ffffff hex value.
*/
_rgbToHex: function(rgb) {
// Split the rgb(r, g, b) string up.
var split = rgb.split('(')[1].split(')')[0].split(',');
if (split.length != 3)
return '';
// From https://gist.github.com/lrvick/2080648.
var bin = split[0] << 16 | split[1] << 8 | split[2];
return (function(h) {
return '#' + new Array(7 - h.length).join('0') + h;
})(bin.toString(16).toLowerCase());
},
_updateSize: function() {
// Fit the color boxes in columns. We first need to get the width of
// a color box (which is customizable), and then change the box's
// width to fit all the columns.
var sizeOfAColorDiv = this.getComputedStyleValue('--paper-swatch-picker-color-size');
if (!sizeOfAColorDiv || sizeOfAColorDiv == '') { // Default value case
sizeOfAColorDiv = 25;
} else {
sizeOfAColorDiv = sizeOfAColorDiv.replace('px', '');
}
var rowCount = Math.ceil(this.colorList.length / this.columnCount);
this.$.container.style.height = rowCount * sizeOfAColorDiv + 'px';
this.$.container.style.width = this.columnCount * sizeOfAColorDiv + 'px';
this._renderedColors = false;
}
});