Bug 1361333 - move sdk/util/indexed-db to devtools;r=ochameau

MozReview-Commit-ID: Lt4V6kmQACq

--HG--
extra : rebase_source : 80bdaa517bdfa6863f963c7ed8a5275ba7415c18

devtools/shared/Loader.jsm

@@ -20,8 +20,6 @@ this.EXPORTED_SYMBOLS = ["DevToolsLoader", "devtools", "BuiltinProvider",
  * Providers are different strategies for loading the devtools.
  */
 
-var sharedGlobalBlocklist = ["sdk/indexed-db"];
-
 /**
  * Used when the tools should be loaded from the Firefox package itself.
  * This is the default case.
@@ -73,7 +71,7 @@ BuiltinProvider.prototype = {
       paths,
       invisibleToDebugger: this.invisibleToDebugger,
       sharedGlobal: true,
-      sharedGlobalBlocklist,
+      sharedGlobalBlocklist: [],
       sandboxName: "DevTools (Module loader)",
       noSandboxAddonId: true,
       requireHook: (id, require) => {

devtools/shared/builtin-modules.js

@@ -302,5 +302,7 @@ lazyGlobal("WebSocket", () => {
   return Services.appShell.hiddenDOMWindow.WebSocket;
 });
 lazyGlobal("indexedDB", () => {
-  return require("sdk/indexed-db").indexedDB;
+  let { indexedDB } = Cu.Sandbox(CC("@mozilla.org/systemprincipal;1", "nsIPrincipal")(),
+                 {wantGlobalProperties: ["indexedDB"]});
+  return require("devtools/shared/indexed-db").createDevToolsIndexedDB(indexedDB);
 });

devtools/shared/indexed-db.js

@@ -0,0 +1,52 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * This indexedDB helper is a simplified version of sdk/indexed-db. It creates a DB with
+ * a principal dedicated to DevTools.
+ */
+
+const { Cc, Ci } = require("chrome");
+
+const PSEUDOURI = "indexeddb://fx-devtools";
+const principaluri = Cc["@mozilla.org/network/io-service;1"]
+                     .getService(Ci.nsIIOService).newURI(PSEUDOURI);
+
+const ssm = Cc["@mozilla.org/scriptsecuritymanager;1"]
+            .getService(Ci.nsIScriptSecurityManager);
+
+const principal = ssm.createCodebasePrincipal(principaluri, {});
+
+/**
+ * Create the DevTools dedicated DB, by relying on the real indexedDB object passed as a
+ * parameter here.
+ *
+ * @param {IDBFactory} indexedDB
+ *        Real indexedDB object.
+ * @return {Object} Wrapper object that implements IDBFactory methods, but for a devtools
+ *         specific principal.
+ */
+exports.createDevToolsIndexedDB = function (indexedDB) {
+  return Object.freeze({
+    /**
+     * Only the standard version of indexedDB.open is supported.
+     */
+    open(name, version) {
+      let options = { storage: "persistent" };
+      if (typeof version === "number") {
+        options.version = version;
+      }
+      return indexedDB.openForPrincipal(principal, name, options);
+    },
+    /**
+     * Only the standard version of indexedDB.deleteDatabase is supported.
+     */
+    deleteDatabase(name) {
+      return indexedDB.deleteForPrincipal(principal, name, { storage: "persistent" });
+    },
+    cmp: indexedDB.cmp.bind(indexedDB),
+  });
+};

devtools/shared/moz.build

@@ -57,6 +57,7 @@ DevToolsModules(
     'flags.js',
     'generate-uuid.js',
     'indentation.js',
+    'indexed-db.js',
     'l10n.js',
     'loader-plugin-raw.jsm',
     'Loader.jsm',