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comparison: mobile/android/components/DirectoryProvider.js
mobile/android/components/DirectoryProvider.js
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| 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 #filter substitution | |
| 6 | |
| 7 const Cc = Components.classes; | |
| 8 const Ci = Components.interfaces; | |
| 9 const Cu = Components.utils; | |
| 10 | |
| 11 Cu.import("resource://gre/modules/FileUtils.jsm"); | |
| 12 Cu.import("resource://gre/modules/Services.jsm"); | |
| 13 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 14 | |
| 15 // ----------------------------------------------------------------------- | |
| 16 // Directory Provider for special browser folders and files | |
| 17 // ----------------------------------------------------------------------- | |
| 18 | |
| 19 const NS_APP_CACHE_PARENT_DIR = "cachePDir"; | |
| 20 const NS_APP_SEARCH_DIR = "SrchPlugns"; | |
| 21 const NS_APP_SEARCH_DIR_LIST = "SrchPluginsDL"; | |
| 22 const NS_APP_USER_SEARCH_DIR = "UsrSrchPlugns"; | |
| 23 const NS_XPCOM_CURRENT_PROCESS_DIR = "XCurProcD"; | |
| 24 const XRE_APP_DISTRIBUTION_DIR = "XREAppDist"; | |
| 25 const XRE_UPDATE_ROOT_DIR = "UpdRootD"; | |
| 26 const ENVVAR_UPDATE_DIR = "UPDATES_DIRECTORY"; | |
| 27 const WEBAPPS_DIR = "webappsDir"; | |
| 28 const DOWNLOAD_DIR = "DfltDwnld" | |
| 29 | |
| 30 const SYSTEM_DIST_PATH = "/system/@ANDROID_PACKAGE_NAME@/distribution"; | |
| 31 | |
| 32 function DirectoryProvider() {} | |
| 33 | |
| 34 DirectoryProvider.prototype = { | |
| 35 classID: Components.ID("{ef0f7a87-c1ee-45a8-8d67-26f586e46a4b}"), | |
| 36 | |
| 37 QueryInterface: XPCOMUtils.generateQI([Ci.nsIDirectoryServiceProvider, | |
| 38 Ci.nsIDirectoryServiceProvider2]), | |
| 39 | |
| 40 getFile: function(prop, persistent) { | |
| 41 if (prop == NS_APP_CACHE_PARENT_DIR) { | |
| 42 let dirsvc = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties); | |
| 43 let profile = dirsvc.get("ProfD", Ci.nsIFile); | |
| 44 return profile; | |
| 45 } else if (prop == WEBAPPS_DIR) { | |
| 46 // returns the folder that should hold the webapps database file | |
| 47 // For fennec we will store that in the root profile folder so that all | |
| 48 // webapps can easily access it | |
| 49 let dirsvc = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties); | |
| 50 let profile = dirsvc.get("ProfD", Ci.nsIFile); | |
| 51 return profile.parent; | |
| 52 } else if (prop == XRE_APP_DISTRIBUTION_DIR) { | |
| 53 // First, check to see if there's a distribution in the data directory. | |
| 54 let dataDist = FileUtils.getDir(NS_XPCOM_CURRENT_PROCESS_DIR, ["distribution"], false); | |
| 55 if (!dataDist.exists()) { | |
| 56 // Then check to see if there's distribution in the system directory. | |
| 57 let systemDist = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile); | |
| 58 systemDist.initWithPath(SYSTEM_DIST_PATH); | |
| 59 // Only return the system distribution location if it exists. | |
| 60 if (systemDist.exists()) { | |
| 61 return systemDist; | |
| 62 } | |
| 63 } | |
| 64 return dataDist; | |
| 65 } else if (prop == XRE_UPDATE_ROOT_DIR) { | |
| 66 let env = Cc["@mozilla.org/process/environment;1"].getService(Ci.nsIEnvironment); | |
| 67 if (env.exists(ENVVAR_UPDATE_DIR)) { | |
| 68 let path = env.get(ENVVAR_UPDATE_DIR); | |
| 69 if (path) { | |
| 70 let localFile = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile); | |
| 71 localFile.initWithPath(path); | |
| 72 return localFile; | |
| 73 } | |
| 74 } | |
| 75 let dm = Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager); | |
| 76 return dm.defaultDownloadsDirectory; | |
| 77 } else if (prop == DOWNLOAD_DIR) { | |
| 78 let dm = Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager); | |
| 79 return dm.defaultDownloadsDirectory; | |
| 80 } | |
| 81 | |
| 82 // We are retuning null to show failure instead for throwing an error. The | |
| 83 // interface is called quite a bit and throwing an error is noisy. Returning | |
| 84 // null works with the way the interface is called [see bug 529077] | |
| 85 return null; | |
| 86 }, | |
| 87 | |
| 88 /** | |
| 89 * Appends the distribution-specific search engine directories to the array. | |
| 90 * The distribution directory structure is as follows: | |
| 91 * | |
| 92 * \- distribution/ | |
| 93 * \- searchplugins/ | |
| 94 * |- common/ | |
| 95 * \- locale/ | |
| 96 * |- <locale 1>/ | |
| 97 * ... | |
| 98 * \- <locale N>/ | |
| 99 * | |
| 100 * Common engines are loaded for all locales. If there is no locale directory for | |
| 101 * the current locale, there is a pref: "distribution.searchplugins.defaultLocale", | |
| 102 * which specifies a default locale to use. | |
| 103 */ | |
| 104 _appendDistroSearchDirs: function(array) { | |
| 105 let distro = this.getFile(XRE_APP_DISTRIBUTION_DIR); | |
| 106 if (!distro.exists()) | |
| 107 return; | |
| 108 | |
| 109 let searchPlugins = distro.clone(); | |
| 110 searchPlugins.append("searchplugins"); | |
| 111 if (!searchPlugins.exists()) | |
| 112 return; | |
| 113 | |
| 114 let commonPlugins = searchPlugins.clone(); | |
| 115 commonPlugins.append("common"); | |
| 116 if (commonPlugins.exists()) | |
| 117 array.push(commonPlugins); | |
| 118 | |
| 119 let localePlugins = searchPlugins.clone(); | |
| 120 localePlugins.append("locale"); | |
| 121 if (!localePlugins.exists()) | |
| 122 return; | |
| 123 | |
| 124 let curLocale = Services.prefs.getCharPref("general.useragent.locale"); | |
| 125 let curLocalePlugins = localePlugins.clone(); | |
| 126 curLocalePlugins.append(curLocale); | |
| 127 if (curLocalePlugins.exists()) { | |
| 128 array.push(curLocalePlugins); | |
| 129 return; | |
| 130 } | |
| 131 | |
| 132 // We didn't append the locale dir - try the default one. | |
| 133 let defLocale = Services.prefs.getCharPref("distribution.searchplugins.defaultLocale"); | |
| 134 let defLocalePlugins = localePlugins.clone(); | |
| 135 if (defLocalePlugins.exists()) | |
| 136 array.push(defLocalePlugins); | |
| 137 }, | |
| 138 | |
| 139 getFiles: function(prop) { | |
| 140 if (prop != NS_APP_SEARCH_DIR_LIST) | |
| 141 return; | |
| 142 | |
| 143 let result = []; | |
| 144 | |
| 145 /** | |
| 146 * We want to preserve the following order, since the search service loads | |
| 147 * engines in first-loaded-wins order. | |
| 148 * - distro search plugin locations | |
| 149 * - user search plugin locations (profile) | |
| 150 * - app search plugin location (shipped engines) | |
| 151 */ | |
| 152 this._appendDistroSearchDirs(result); | |
| 153 | |
| 154 let appUserSearchDir = FileUtils.getDir(NS_APP_USER_SEARCH_DIR, [], false); | |
| 155 if (appUserSearchDir.exists()) | |
| 156 result.push(appUserSearchDir); | |
| 157 | |
| 158 let appSearchDir = FileUtils.getDir(NS_APP_SEARCH_DIR, [], false); | |
| 159 if (appSearchDir.exists()) | |
| 160 result.push(appSearchDir); | |
| 161 | |
| 162 return { | |
| 163 QueryInterface: XPCOMUtils.generateQI([Ci.nsISimpleEnumerator]), | |
| 164 hasMoreElements: function() { | |
| 165 return result.length > 0; | |
| 166 }, | |
| 167 getNext: function() { | |
| 168 return result.shift(); | |
| 169 } | |
| 170 }; | |
| 171 } | |
| 172 }; | |
| 173 | |
| 174 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DirectoryProvider]); | |
| 175 |
