search.js

goog.provide('jvjsdoc');

goog.require('goog.dom');
goog.require('goog.dom.classes');
goog.require('goog.events');
goog.require('goog.events.EventType');
goog.require('goog.events.KeyHandler');
goog.require('goog.ui.ac');
goog.require('goog.ui.ac.AutoComplete.EventType');


/**
 * Initialise the javascript supported search box.
 */
jvjsdoc.enableSearch = function() {
  var search = goog.dom.getElement('search');
  var go = goog.dom.getElement('go');
  var xRef = window['jvXRef'];
  var baseDir = window['jvBaseDir'];

  var keys = [];
  for (var key in xRef) {
    keys.push(key);
  }

  var ac = goog.ui.ac.createSimpleAutoComplete(keys, search);
  ac.setMaxMatches(20);
  goog.events.listen(ac, goog.ui.ac.AutoComplete.EventType.UPDATE,
                     function(e) { go.click(); });
  goog.events.listen(search, goog.events.EventType.KEYDOWN,
                     function(e) {
                       if (e.keyCode == 13) {
                         setTimeout(function() {
                           go.click();
                         }, 1);
                       }
                     });

  goog.events.listen(go, goog.events.EventType.CLICK,
                     function(e) {
                       var key = search.value;
                       var next = xRef[key];
                       if (next) {
                         window.location.href = baseDir + '/' + next;
                       } else {
                         alert('unknown symbol ' + key);
                       }
                       return true;
                     });

  var allKeys = new goog.events.KeyHandler(document);
  goog.events.listen(allKeys, 'key',
                     function(e) {
                       if (e.target != search &&
                           e.charCode === "f".charCodeAt(0) &&
                           !e.altKey &&
                           !e.ctrlKey &&
                           !e.metaKey) {
                         search.focus();
                         search.select();
                         e.preventDefault();
                       }
                     });

  goog.dom.classes.remove(search.parentElement, 'off');
};


/**
 * Allow to un-hide information about protected and deprecated methods.
 */
jvjsdoc.enableHiddenContent = function() {
  var hidden = goog.dom.getElementsByClass('hidden');
  function helper(elem, e) {
    goog.dom.classes.toggle(elem, 'hidden');
  };
  for (var i = 0; i < hidden.length; ++i) {
    var elem = hidden[i];
    var trigger = elem.firstChild;
    goog.events.listen(trigger, goog.events.EventType.CLICK,
                       goog.bind(helper, undefined, elem));
  }
};


/**
 * Initialise our javascript helpers.
 */
jvjsdoc.init = function() {
  jvjsdoc.enableSearch();
  jvjsdoc.enableHiddenContent();
};

goog.exportSymbol('init', jvjsdoc.init);