The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/chrome/content/SelectHelper.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,138 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +"use strict";
     1.8 +
     1.9 +var SelectHelper = {
    1.10 +  _uiBusy: false,
    1.11 +
    1.12 +  handleEvent: function(aEvent) {
    1.13 +    this.handleClick(aEvent.target);
    1.14 +  },
    1.15 +
    1.16 +  handleClick: function(aTarget) {
    1.17 +    // if we're busy looking at a select we want to eat any clicks that
    1.18 +    // come to us, but not to process them
    1.19 +    if (this._uiBusy || !this._isMenu(aTarget) || aTarget.disabled)
    1.20 +        return;
    1.21 +
    1.22 +    this._uiBusy = true;
    1.23 +    this.show(aTarget);
    1.24 +    this._uiBusy = false;
    1.25 +  },
    1.26 +
    1.27 +  show: function(aElement) {
    1.28 +    let list = this.getListForElement(aElement);
    1.29 +
    1.30 +    let p = new Prompt({
    1.31 +      window: aElement.contentDocument
    1.32 +    });
    1.33 +
    1.34 +    if (aElement.multiple) {
    1.35 +      p.addButton({
    1.36 +        label: Strings.browser.GetStringFromName("selectHelper.closeMultipleSelectDialog")
    1.37 +      }).setMultiChoiceItems(list);
    1.38 +    } else {
    1.39 +      p.setSingleChoiceItems(list);
    1.40 +    }
    1.41 +
    1.42 +    p.show((function(data) {
    1.43 +      let selected = data.list;
    1.44 +
    1.45 +      if (aElement instanceof Ci.nsIDOMXULMenuListElement) {
    1.46 +        if (aElement.selectedIndex != selected[0]) {
    1.47 +          aElement.selectedIndex = selected[0];
    1.48 +          this.fireOnCommand(aElement);
    1.49 +        }
    1.50 +      } else if (aElement instanceof HTMLSelectElement) {
    1.51 +        let changed = false;
    1.52 +        let i = 0;
    1.53 +        this.forOptions(aElement, function(aNode) {
    1.54 +          if (aNode.selected && selected.indexOf(i) == -1) {
    1.55 +            changed = true;
    1.56 +            aNode.selected = false;
    1.57 +          } else if (!aNode.selected && selected.indexOf(i) != -1) {
    1.58 +            changed = true;
    1.59 +            aNode.selected = true;
    1.60 +          }
    1.61 +          i++;
    1.62 +        });
    1.63 +
    1.64 +        if (changed)
    1.65 +          this.fireOnChange(aElement);
    1.66 +      }
    1.67 +    }).bind(this));
    1.68 +  },
    1.69 +
    1.70 +  _isMenu: function(aElement) {
    1.71 +    return (aElement instanceof HTMLSelectElement ||
    1.72 +            aElement instanceof Ci.nsIDOMXULMenuListElement);
    1.73 +  },
    1.74 +
    1.75 +  getListForElement: function(aElement) {
    1.76 +    let index = 0;
    1.77 +    let items = [];
    1.78 +    this.forOptions(aElement, function(aNode, aOptions, aParent) {
    1.79 +      let item = {
    1.80 +        label: aNode.text || aNode.label,
    1.81 +        header: aOptions.isGroup,
    1.82 +        disabled: aNode.disabled,
    1.83 +        id: index,
    1.84 +        selected: aNode.selected
    1.85 +      }
    1.86 +
    1.87 +      if (aParent) {
    1.88 +        item.child = true;
    1.89 +        item.disabled = item.disabled || aParent.disabled;
    1.90 +      }
    1.91 +      items.push(item);
    1.92 +
    1.93 +      index++;
    1.94 +    });
    1.95 +    return items;
    1.96 +  },
    1.97 +
    1.98 +  forOptions: function(aElement, aFunction, aParent = null) {
    1.99 +    let element = aElement;
   1.100 +    if (aElement instanceof Ci.nsIDOMXULMenuListElement)
   1.101 +      element = aElement.menupopup;
   1.102 +    let children = element.children;
   1.103 +    let numChildren = children.length;
   1.104 +
   1.105 +    // if there are no children in this select, we add a dummy row so that at least something appears
   1.106 +    if (numChildren == 0)
   1.107 +      aFunction.call(this, { label: "" }, { isGroup: false }, aParent);
   1.108 +
   1.109 +    for (let i = 0; i < numChildren; i++) {
   1.110 +      let child = children[i];
   1.111 +      if (child instanceof HTMLOptionElement ||
   1.112 +          child instanceof Ci.nsIDOMXULSelectControlItemElement) {
   1.113 +        aFunction.call(this, child, { isGroup: false }, aParent);
   1.114 +      } else if (child instanceof HTMLOptGroupElement) {
   1.115 +        aFunction.call(this, child, { isGroup: true });
   1.116 +        this.forOptions(child, aFunction, child);
   1.117 +
   1.118 +      }
   1.119 +    }
   1.120 +  },
   1.121 +
   1.122 +  fireOnChange: function(aElement) {
   1.123 +    let evt = aElement.ownerDocument.createEvent("Events");
   1.124 +    evt.initEvent("change", true, true, aElement.defaultView, 0,
   1.125 +                  false, false,
   1.126 +                  false, false, null);
   1.127 +    setTimeout(function() {
   1.128 +      aElement.dispatchEvent(evt);
   1.129 +    }, 0);
   1.130 +  },
   1.131 +
   1.132 +  fireOnCommand: function(aElement) {
   1.133 +    let evt = aElement.ownerDocument.createEvent("XULCommandEvent");
   1.134 +    evt.initCommandEvent("command", true, true, aElement.defaultView, 0,
   1.135 +                  false, false,
   1.136 +                  false, false, null);
   1.137 +    setTimeout(function() {
   1.138 +      aElement.dispatchEvent(evt);
   1.139 +    }, 0);
   1.140 +  }
   1.141 +};