The Tor Browser / file comparison
comparison: mobile/android/chrome/content/SelectHelper.js
mobile/android/chrome/content/SelectHelper.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:06f971ddfa1d |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 "use strict"; | |
| 5 | |
| 6 var SelectHelper = { | |
| 7 _uiBusy: false, | |
| 8 | |
| 9 handleEvent: function(aEvent) { | |
| 10 this.handleClick(aEvent.target); | |
| 11 }, | |
| 12 | |
| 13 handleClick: function(aTarget) { | |
| 14 // if we're busy looking at a select we want to eat any clicks that | |
| 15 // come to us, but not to process them | |
| 16 if (this._uiBusy || !this._isMenu(aTarget) || aTarget.disabled) | |
| 17 return; | |
| 18 | |
| 19 this._uiBusy = true; | |
| 20 this.show(aTarget); | |
| 21 this._uiBusy = false; | |
| 22 }, | |
| 23 | |
| 24 show: function(aElement) { | |
| 25 let list = this.getListForElement(aElement); | |
| 26 | |
| 27 let p = new Prompt({ | |
| 28 window: aElement.contentDocument | |
| 29 }); | |
| 30 | |
| 31 if (aElement.multiple) { | |
| 32 p.addButton({ | |
| 33 label: Strings.browser.GetStringFromName("selectHelper.closeMultipleSelectDialog") | |
| 34 }).setMultiChoiceItems(list); | |
| 35 } else { | |
| 36 p.setSingleChoiceItems(list); | |
| 37 } | |
| 38 | |
| 39 p.show((function(data) { | |
| 40 let selected = data.list; | |
| 41 | |
| 42 if (aElement instanceof Ci.nsIDOMXULMenuListElement) { | |
| 43 if (aElement.selectedIndex != selected[0]) { | |
| 44 aElement.selectedIndex = selected[0]; | |
| 45 this.fireOnCommand(aElement); | |
| 46 } | |
| 47 } else if (aElement instanceof HTMLSelectElement) { | |
| 48 let changed = false; | |
| 49 let i = 0; | |
| 50 this.forOptions(aElement, function(aNode) { | |
| 51 if (aNode.selected && selected.indexOf(i) == -1) { | |
| 52 changed = true; | |
| 53 aNode.selected = false; | |
| 54 } else if (!aNode.selected && selected.indexOf(i) != -1) { | |
| 55 changed = true; | |
| 56 aNode.selected = true; | |
| 57 } | |
| 58 i++; | |
| 59 }); | |
| 60 | |
| 61 if (changed) | |
| 62 this.fireOnChange(aElement); | |
| 63 } | |
| 64 }).bind(this)); | |
| 65 }, | |
| 66 | |
| 67 _isMenu: function(aElement) { | |
| 68 return (aElement instanceof HTMLSelectElement || | |
| 69 aElement instanceof Ci.nsIDOMXULMenuListElement); | |
| 70 }, | |
| 71 | |
| 72 getListForElement: function(aElement) { | |
| 73 let index = 0; | |
| 74 let items = []; | |
| 75 this.forOptions(aElement, function(aNode, aOptions, aParent) { | |
| 76 let item = { | |
| 77 label: aNode.text || aNode.label, | |
| 78 header: aOptions.isGroup, | |
| 79 disabled: aNode.disabled, | |
| 80 id: index, | |
| 81 selected: aNode.selected | |
| 82 } | |
| 83 | |
| 84 if (aParent) { | |
| 85 item.child = true; | |
| 86 item.disabled = item.disabled || aParent.disabled; | |
| 87 } | |
| 88 items.push(item); | |
| 89 | |
| 90 index++; | |
| 91 }); | |
| 92 return items; | |
| 93 }, | |
| 94 | |
| 95 forOptions: function(aElement, aFunction, aParent = null) { | |
| 96 let element = aElement; | |
| 97 if (aElement instanceof Ci.nsIDOMXULMenuListElement) | |
| 98 element = aElement.menupopup; | |
| 99 let children = element.children; | |
| 100 let numChildren = children.length; | |
| 101 | |
| 102 // if there are no children in this select, we add a dummy row so that at least something appears | |
| 103 if (numChildren == 0) | |
| 104 aFunction.call(this, { label: "" }, { isGroup: false }, aParent); | |
| 105 | |
| 106 for (let i = 0; i < numChildren; i++) { | |
| 107 let child = children[i]; | |
| 108 if (child instanceof HTMLOptionElement || | |
| 109 child instanceof Ci.nsIDOMXULSelectControlItemElement) { | |
| 110 aFunction.call(this, child, { isGroup: false }, aParent); | |
| 111 } else if (child instanceof HTMLOptGroupElement) { | |
| 112 aFunction.call(this, child, { isGroup: true }); | |
| 113 this.forOptions(child, aFunction, child); | |
| 114 | |
| 115 } | |
| 116 } | |
| 117 }, | |
| 118 | |
| 119 fireOnChange: function(aElement) { | |
| 120 let evt = aElement.ownerDocument.createEvent("Events"); | |
| 121 evt.initEvent("change", true, true, aElement.defaultView, 0, | |
| 122 false, false, | |
| 123 false, false, null); | |
| 124 setTimeout(function() { | |
| 125 aElement.dispatchEvent(evt); | |
| 126 }, 0); | |
| 127 }, | |
| 128 | |
| 129 fireOnCommand: function(aElement) { | |
| 130 let evt = aElement.ownerDocument.createEvent("XULCommandEvent"); | |
| 131 evt.initCommandEvent("command", true, true, aElement.defaultView, 0, | |
| 132 false, false, | |
| 133 false, false, null); | |
| 134 setTimeout(function() { | |
| 135 aElement.dispatchEvent(evt); | |
| 136 }, 0); | |
| 137 } | |
| 138 }; |
