The Tor Browser / file comparison
comparison: toolkit/modules/PageMenu.jsm
toolkit/modules/PageMenu.jsm
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:b25bb8087a42 |
|---|---|
| 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 | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 this.EXPORTED_SYMBOLS = ["PageMenu"]; | |
| 6 | |
| 7 this.PageMenu = function PageMenu() { | |
| 8 } | |
| 9 | |
| 10 PageMenu.prototype = { | |
| 11 PAGEMENU_ATTR: "pagemenu", | |
| 12 GENERATEDITEMID_ATTR: "generateditemid", | |
| 13 | |
| 14 popup: null, | |
| 15 builder: null, | |
| 16 | |
| 17 maybeBuildAndAttachMenu: function(aTarget, aPopup) { | |
| 18 var pageMenu = null; | |
| 19 var target = aTarget; | |
| 20 while (target) { | |
| 21 var contextMenu = target.contextMenu; | |
| 22 if (contextMenu) { | |
| 23 pageMenu = contextMenu; | |
| 24 break; | |
| 25 } | |
| 26 target = target.parentNode; | |
| 27 } | |
| 28 | |
| 29 if (!pageMenu) { | |
| 30 return false; | |
| 31 } | |
| 32 | |
| 33 var insertionPoint = this.getInsertionPoint(aPopup); | |
| 34 if (!insertionPoint) { | |
| 35 return false; | |
| 36 } | |
| 37 | |
| 38 pageMenu.QueryInterface(Components.interfaces.nsIHTMLMenu); | |
| 39 pageMenu.sendShowEvent(); | |
| 40 // the show event is not cancelable, so no need to check a result here | |
| 41 | |
| 42 var fragment = aPopup.ownerDocument.createDocumentFragment(); | |
| 43 | |
| 44 var builder = pageMenu.createBuilder(); | |
| 45 if (!builder) { | |
| 46 return false; | |
| 47 } | |
| 48 builder.QueryInterface(Components.interfaces.nsIXULContextMenuBuilder); | |
| 49 builder.init(fragment, this.GENERATEDITEMID_ATTR); | |
| 50 | |
| 51 pageMenu.build(builder); | |
| 52 | |
| 53 var pos = insertionPoint.getAttribute(this.PAGEMENU_ATTR); | |
| 54 if (pos == "start") { | |
| 55 insertionPoint.insertBefore(fragment, | |
| 56 insertionPoint.firstChild); | |
| 57 } else { | |
| 58 insertionPoint.appendChild(fragment); | |
| 59 } | |
| 60 | |
| 61 this.builder = builder; | |
| 62 this.popup = aPopup; | |
| 63 | |
| 64 this.popup.addEventListener("command", this); | |
| 65 this.popup.addEventListener("popuphidden", this); | |
| 66 | |
| 67 return true; | |
| 68 }, | |
| 69 | |
| 70 handleEvent: function(event) { | |
| 71 var type = event.type; | |
| 72 var target = event.target; | |
| 73 if (type == "command" && target.hasAttribute(this.GENERATEDITEMID_ATTR)) { | |
| 74 this.builder.click(target.getAttribute(this.GENERATEDITEMID_ATTR)); | |
| 75 } else if (type == "popuphidden" && this.popup == target) { | |
| 76 this.removeGeneratedContent(this.popup); | |
| 77 | |
| 78 this.popup.removeEventListener("popuphidden", this); | |
| 79 this.popup.removeEventListener("command", this); | |
| 80 | |
| 81 this.popup = null; | |
| 82 this.builder = null; | |
| 83 } | |
| 84 }, | |
| 85 | |
| 86 getImmediateChild: function(element, tag) { | |
| 87 var child = element.firstChild; | |
| 88 while (child) { | |
| 89 if (child.localName == tag) { | |
| 90 return child; | |
| 91 } | |
| 92 child = child.nextSibling; | |
| 93 } | |
| 94 return null; | |
| 95 }, | |
| 96 | |
| 97 getInsertionPoint: function(aPopup) { | |
| 98 if (aPopup.hasAttribute(this.PAGEMENU_ATTR)) | |
| 99 return aPopup; | |
| 100 | |
| 101 var element = aPopup.firstChild; | |
| 102 while (element) { | |
| 103 if (element.localName == "menu") { | |
| 104 var popup = this.getImmediateChild(element, "menupopup"); | |
| 105 if (popup) { | |
| 106 var result = this.getInsertionPoint(popup); | |
| 107 if (result) { | |
| 108 return result; | |
| 109 } | |
| 110 } | |
| 111 } | |
| 112 element = element.nextSibling; | |
| 113 } | |
| 114 | |
| 115 return null; | |
| 116 }, | |
| 117 | |
| 118 removeGeneratedContent: function(aPopup) { | |
| 119 var ungenerated = []; | |
| 120 ungenerated.push(aPopup); | |
| 121 | |
| 122 var count; | |
| 123 while (0 != (count = ungenerated.length)) { | |
| 124 var last = count - 1; | |
| 125 var element = ungenerated[last]; | |
| 126 ungenerated.splice(last, 1); | |
| 127 | |
| 128 var i = element.childNodes.length; | |
| 129 while (i-- > 0) { | |
| 130 var child = element.childNodes[i]; | |
| 131 if (!child.hasAttribute(this.GENERATEDITEMID_ATTR)) { | |
| 132 ungenerated.push(child); | |
| 133 continue; | |
| 134 } | |
| 135 element.removeChild(child); | |
| 136 } | |
| 137 } | |
| 138 } | |
| 139 } |
