toolkit/modules/PageMenu.jsm@6474c204b198 (annotated)
toolkit/modules/PageMenu.jsm
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | this.EXPORTED_SYMBOLS = ["PageMenu"]; |
| michael@0 | 6 | |
| michael@0 | 7 | this.PageMenu = function PageMenu() { |
| michael@0 | 8 | } |
| michael@0 | 9 | |
| michael@0 | 10 | PageMenu.prototype = { |
| michael@0 | 11 | PAGEMENU_ATTR: "pagemenu", |
| michael@0 | 12 | GENERATEDITEMID_ATTR: "generateditemid", |
| michael@0 | 13 | |
| michael@0 | 14 | popup: null, |
| michael@0 | 15 | builder: null, |
| michael@0 | 16 | |
| michael@0 | 17 | maybeBuildAndAttachMenu: function(aTarget, aPopup) { |
| michael@0 | 18 | var pageMenu = null; |
| michael@0 | 19 | var target = aTarget; |
| michael@0 | 20 | while (target) { |
| michael@0 | 21 | var contextMenu = target.contextMenu; |
| michael@0 | 22 | if (contextMenu) { |
| michael@0 | 23 | pageMenu = contextMenu; |
| michael@0 | 24 | break; |
| michael@0 | 25 | } |
| michael@0 | 26 | target = target.parentNode; |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | if (!pageMenu) { |
| michael@0 | 30 | return false; |
| michael@0 | 31 | } |
| michael@0 | 32 | |
| michael@0 | 33 | var insertionPoint = this.getInsertionPoint(aPopup); |
| michael@0 | 34 | if (!insertionPoint) { |
| michael@0 | 35 | return false; |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | pageMenu.QueryInterface(Components.interfaces.nsIHTMLMenu); |
| michael@0 | 39 | pageMenu.sendShowEvent(); |
| michael@0 | 40 | // the show event is not cancelable, so no need to check a result here |
| michael@0 | 41 | |
| michael@0 | 42 | var fragment = aPopup.ownerDocument.createDocumentFragment(); |
| michael@0 | 43 | |
| michael@0 | 44 | var builder = pageMenu.createBuilder(); |
| michael@0 | 45 | if (!builder) { |
| michael@0 | 46 | return false; |
| michael@0 | 47 | } |
| michael@0 | 48 | builder.QueryInterface(Components.interfaces.nsIXULContextMenuBuilder); |
| michael@0 | 49 | builder.init(fragment, this.GENERATEDITEMID_ATTR); |
| michael@0 | 50 | |
| michael@0 | 51 | pageMenu.build(builder); |
| michael@0 | 52 | |
| michael@0 | 53 | var pos = insertionPoint.getAttribute(this.PAGEMENU_ATTR); |
| michael@0 | 54 | if (pos == "start") { |
| michael@0 | 55 | insertionPoint.insertBefore(fragment, |
| michael@0 | 56 | insertionPoint.firstChild); |
| michael@0 | 57 | } else { |
| michael@0 | 58 | insertionPoint.appendChild(fragment); |
| michael@0 | 59 | } |
| michael@0 | 60 | |
| michael@0 | 61 | this.builder = builder; |
| michael@0 | 62 | this.popup = aPopup; |
| michael@0 | 63 | |
| michael@0 | 64 | this.popup.addEventListener("command", this); |
| michael@0 | 65 | this.popup.addEventListener("popuphidden", this); |
| michael@0 | 66 | |
| michael@0 | 67 | return true; |
| michael@0 | 68 | }, |
| michael@0 | 69 | |
| michael@0 | 70 | handleEvent: function(event) { |
| michael@0 | 71 | var type = event.type; |
| michael@0 | 72 | var target = event.target; |
| michael@0 | 73 | if (type == "command" && target.hasAttribute(this.GENERATEDITEMID_ATTR)) { |
| michael@0 | 74 | this.builder.click(target.getAttribute(this.GENERATEDITEMID_ATTR)); |
| michael@0 | 75 | } else if (type == "popuphidden" && this.popup == target) { |
| michael@0 | 76 | this.removeGeneratedContent(this.popup); |
| michael@0 | 77 | |
| michael@0 | 78 | this.popup.removeEventListener("popuphidden", this); |
| michael@0 | 79 | this.popup.removeEventListener("command", this); |
| michael@0 | 80 | |
| michael@0 | 81 | this.popup = null; |
| michael@0 | 82 | this.builder = null; |
| michael@0 | 83 | } |
| michael@0 | 84 | }, |
| michael@0 | 85 | |
| michael@0 | 86 | getImmediateChild: function(element, tag) { |
| michael@0 | 87 | var child = element.firstChild; |
| michael@0 | 88 | while (child) { |
| michael@0 | 89 | if (child.localName == tag) { |
| michael@0 | 90 | return child; |
| michael@0 | 91 | } |
| michael@0 | 92 | child = child.nextSibling; |
| michael@0 | 93 | } |
| michael@0 | 94 | return null; |
| michael@0 | 95 | }, |
| michael@0 | 96 | |
| michael@0 | 97 | getInsertionPoint: function(aPopup) { |
| michael@0 | 98 | if (aPopup.hasAttribute(this.PAGEMENU_ATTR)) |
| michael@0 | 99 | return aPopup; |
| michael@0 | 100 | |
| michael@0 | 101 | var element = aPopup.firstChild; |
| michael@0 | 102 | while (element) { |
| michael@0 | 103 | if (element.localName == "menu") { |
| michael@0 | 104 | var popup = this.getImmediateChild(element, "menupopup"); |
| michael@0 | 105 | if (popup) { |
| michael@0 | 106 | var result = this.getInsertionPoint(popup); |
| michael@0 | 107 | if (result) { |
| michael@0 | 108 | return result; |
| michael@0 | 109 | } |
| michael@0 | 110 | } |
| michael@0 | 111 | } |
| michael@0 | 112 | element = element.nextSibling; |
| michael@0 | 113 | } |
| michael@0 | 114 | |
| michael@0 | 115 | return null; |
| michael@0 | 116 | }, |
| michael@0 | 117 | |
| michael@0 | 118 | removeGeneratedContent: function(aPopup) { |
| michael@0 | 119 | var ungenerated = []; |
| michael@0 | 120 | ungenerated.push(aPopup); |
| michael@0 | 121 | |
| michael@0 | 122 | var count; |
| michael@0 | 123 | while (0 != (count = ungenerated.length)) { |
| michael@0 | 124 | var last = count - 1; |
| michael@0 | 125 | var element = ungenerated[last]; |
| michael@0 | 126 | ungenerated.splice(last, 1); |
| michael@0 | 127 | |
| michael@0 | 128 | var i = element.childNodes.length; |
| michael@0 | 129 | while (i-- > 0) { |
| michael@0 | 130 | var child = element.childNodes[i]; |
| michael@0 | 131 | if (!child.hasAttribute(this.GENERATEDITEMID_ATTR)) { |
| michael@0 | 132 | ungenerated.push(child); |
| michael@0 | 133 | continue; |
| michael@0 | 134 | } |
| michael@0 | 135 | element.removeChild(child); |
| michael@0 | 136 | } |
| michael@0 | 137 | } |
| michael@0 | 138 | } |
| michael@0 | 139 | } |
