The Tor Browser / file comparison
comparison: browser/components/tabview/favicons.js
browser/components/tabview/favicons.js
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
equal
deleted
inserted
replaced
| -1:000000000000 | 0:8527366eb07e |
|---|---|
| 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 | |
| 5 let FavIcons = { | |
| 6 // Pref that controls whether to display site icons. | |
| 7 PREF_CHROME_SITE_ICONS: "browser.chrome.site_icons", | |
| 8 | |
| 9 // Pref that controls whether to display fav icons. | |
| 10 PREF_CHROME_FAVICONS: "browser.chrome.favicons", | |
| 11 | |
| 12 // Lazy getter for pref browser.chrome.site_icons. | |
| 13 get _prefSiteIcons() { | |
| 14 delete this._prefSiteIcons; | |
| 15 this._prefSiteIcons = Services.prefs.getBoolPref(this.PREF_CHROME_SITE_ICONS); | |
| 16 }, | |
| 17 | |
| 18 // Lazy getter for pref browser.chrome.favicons. | |
| 19 get _prefFavicons() { | |
| 20 delete this._prefFavicons; | |
| 21 this._prefFavicons = Services.prefs.getBoolPref(this.PREF_CHROME_FAVICONS); | |
| 22 }, | |
| 23 | |
| 24 get defaultFavicon() this._favIconService.defaultFavicon.spec, | |
| 25 | |
| 26 init: function FavIcons_init() { | |
| 27 XPCOMUtils.defineLazyServiceGetter(this, "_favIconService", | |
| 28 "@mozilla.org/browser/favicon-service;1", "nsIFaviconService"); | |
| 29 | |
| 30 Services.prefs.addObserver(this.PREF_CHROME_SITE_ICONS, this, false); | |
| 31 Services.prefs.addObserver(this.PREF_CHROME_FAVICONS, this, false); | |
| 32 }, | |
| 33 | |
| 34 uninit: function FavIcons_uninit() { | |
| 35 Services.prefs.removeObserver(this.PREF_CHROME_SITE_ICONS, this); | |
| 36 Services.prefs.removeObserver(this.PREF_CHROME_FAVICONS, this); | |
| 37 }, | |
| 38 | |
| 39 observe: function FavIcons_observe(subject, topic, data) { | |
| 40 let value = Services.prefs.getBoolPref(data); | |
| 41 | |
| 42 if (data == this.PREF_CHROME_SITE_ICONS) | |
| 43 this._prefSiteIcons = value; | |
| 44 else if (data == this.PREF_CHROME_FAVICONS) | |
| 45 this._prefFavicons = value; | |
| 46 }, | |
| 47 | |
| 48 // ---------- | |
| 49 // Function: getFavIconUrlForTab | |
| 50 // Gets the "favicon link URI" for the given xul:tab, or null if unavailable. | |
| 51 getFavIconUrlForTab: function FavIcons_getFavIconUrlForTab(tab, callback) { | |
| 52 this._isImageDocument(tab, function (isImageDoc) { | |
| 53 if (isImageDoc) { | |
| 54 callback(tab.pinned ? tab.image : null); | |
| 55 } else { | |
| 56 this._getFavIconForNonImageDocument(tab, callback); | |
| 57 } | |
| 58 }.bind(this)); | |
| 59 }, | |
| 60 | |
| 61 // ---------- | |
| 62 // Function: _getFavIconForNonImageDocument | |
| 63 // Retrieves the favicon for a tab containing a non-image document. | |
| 64 _getFavIconForNonImageDocument: | |
| 65 function FavIcons_getFavIconForNonImageDocument(tab, callback) { | |
| 66 | |
| 67 if (tab.image) | |
| 68 this._getFavIconFromTabImage(tab, callback); | |
| 69 else if (this._shouldLoadFavIcon(tab)) | |
| 70 this._getFavIconForHttpDocument(tab, callback); | |
| 71 else | |
| 72 callback(null); | |
| 73 }, | |
| 74 | |
| 75 // ---------- | |
| 76 // Function: _getFavIconFromTabImage | |
| 77 // Retrieves the favicon for tab with a tab image. | |
| 78 _getFavIconFromTabImage: | |
| 79 function FavIcons_getFavIconFromTabImage(tab, callback) { | |
| 80 | |
| 81 let tabImage = gBrowser.getIcon(tab); | |
| 82 | |
| 83 // If the tab image's url starts with http(s), fetch icon from favicon | |
| 84 // service via the moz-anno protocol. | |
| 85 if (/^https?:/.test(tabImage)) { | |
| 86 let tabImageURI = gWindow.makeURI(tabImage); | |
| 87 tabImage = this._favIconService.getFaviconLinkForIcon(tabImageURI).spec; | |
| 88 } | |
| 89 | |
| 90 callback(tabImage); | |
| 91 }, | |
| 92 | |
| 93 // ---------- | |
| 94 // Function: _getFavIconForHttpDocument | |
| 95 // Retrieves the favicon for tab containg a http(s) document. | |
| 96 _getFavIconForHttpDocument: | |
| 97 function FavIcons_getFavIconForHttpDocument(tab, callback) { | |
| 98 | |
| 99 let {currentURI} = tab.linkedBrowser; | |
| 100 this._favIconService.getFaviconURLForPage(currentURI, function (uri) { | |
| 101 if (uri) { | |
| 102 callback(this._favIconService.getFaviconLinkForIcon(uri).spec); | |
| 103 } else { | |
| 104 callback(this.defaultFavicon); | |
| 105 } | |
| 106 }.bind(this)); | |
| 107 }, | |
| 108 | |
| 109 // ---------- | |
| 110 // Function: _isImageDocument | |
| 111 // Checks whether an image is loaded into the given tab. | |
| 112 _isImageDocument: function UI__isImageDocument(tab, callback) { | |
| 113 let mm = tab.linkedBrowser.messageManager; | |
| 114 let message = "Panorama:isImageDocument"; | |
| 115 | |
| 116 mm.addMessageListener(message, function onMessage(cx) { | |
| 117 mm.removeMessageListener(cx.name, onMessage); | |
| 118 callback(cx.json.isImageDocument); | |
| 119 }); | |
| 120 | |
| 121 mm.sendAsyncMessage(message); | |
| 122 }, | |
| 123 | |
| 124 // ---------- | |
| 125 // Function: _shouldLoadFavIcon | |
| 126 // Checks whether fav icon should be loaded for a given tab. | |
| 127 _shouldLoadFavIcon: function FavIcons_shouldLoadFavIcon(tab) { | |
| 128 // No need to load a favicon if the user doesn't want site or favicons. | |
| 129 if (!this._prefSiteIcons || !this._prefFavicons) | |
| 130 return false; | |
| 131 | |
| 132 let uri = tab.linkedBrowser.currentURI; | |
| 133 | |
| 134 // Stop here if we don't have a valid nsIURI. | |
| 135 if (!uri || !(uri instanceof Ci.nsIURI)) | |
| 136 return false; | |
| 137 | |
| 138 // Load favicons for http(s) pages only. | |
| 139 return uri.schemeIs("http") || uri.schemeIs("https"); | |
| 140 } | |
| 141 }; |
