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81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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const Cr = Components.results;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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const XRE_OS_UPDATE_APPLY_TO_DIR = "OSUpdApplyToD"
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const LOCAL_DIR = "/data/local";
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XPCOMUtils.defineLazyServiceGetter(Services, "env",
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"@mozilla.org/process/environment;1",
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"nsIEnvironment");
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function DirectoryProvider() {
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}
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DirectoryProvider.prototype = {
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classID: Components.ID("{9181eb7c-6f87-11e1-90b1-4f59d80dd2e5}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIDirectoryServiceProvider]),
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getFile: function dp_getFile(prop, persistent) {
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#ifdef MOZ_WIDGET_GONK
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let localProps = ["cachePDir", "webappsDir", "PrefD", "indexedDBPDir",
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"permissionDBPDir", "UpdRootD"];
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if (localProps.indexOf(prop) != -1) {
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let file = Cc["@mozilla.org/file/local;1"]
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.createInstance(Ci.nsILocalFile)
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file.initWithPath(LOCAL_DIR);
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persistent.value = true;
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return file;
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} else if (prop == "coreAppsDir") {
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let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile)
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file.initWithPath("/system/b2g");
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persistent.value = true;
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return file;
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} else if (prop == XRE_OS_UPDATE_APPLY_TO_DIR) {
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return this.getOSUpdateApplyToDir(persistent);
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}
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#endif
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return null;
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},
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getOSUpdateApplyToDir: function dp_getOSUpdateApplyToDir(persistent) {
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// TODO add logic to check available storage space,
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// and iterate through pref(s) to find alternative dirs if
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// necessary.
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let path = Services.env.get("EXTERNAL_STORAGE");
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if (!path) {
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path = LOCAL_PATH;
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}
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let dir = Cc["@mozilla.org/file/local;1"]
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.createInstance(Ci.nsILocalFile)
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dir.initWithPath(path);
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if (!dir.exists() && path != LOCAL_PATH) {
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// Fallback to LOCAL_PATH if we didn't fallback earlier
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dir.initWithPath(LOCAL_PATH);
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if (!dir.exists()) {
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throw Cr.NS_ERROR_FILE_NOT_FOUND;
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}
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}
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dir.appendRelativePath("updates");
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persistent.value = false;
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return dir;
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}
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};
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const NSGetFactory = XPCOMUtils.generateNSGetFactory([DirectoryProvider]);
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