1 files changed, 96 insertions, 0 deletions
diff --git a/toolkit/modules/RemoteController.jsm b/toolkit/modules/RemoteController.jsm
new file mode 100644
index 000000000..23f1bd949
--- /dev/null
+++ b/toolkit/modules/RemoteController.jsm
@@ -0,0 +1,96 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+// 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/.
+
+this.EXPORTED_SYMBOLS = ["RemoteController"];
+
+const Ci = Components.interfaces;
+const Cc = Components.classes;
+const Cu = Components.utils;
+const Cr = Components.results;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+function RemoteController(browser)
+{
+  this._browser = browser;
+
+  // A map of commands that have had their enabled/disabled state assigned. The
+  // value of each key will be true if enabled, and false if disabled.
+  this._supportedCommands = { };
+}
+
+RemoteController.prototype = {
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIController,
+                                         Ci.nsICommandController]),
+
+  isCommandEnabled: function(aCommand) {
+    return this._supportedCommands[aCommand] || false;
+  },
+
+  supportsCommand: function(aCommand) {
+    return aCommand in this._supportedCommands;
+  },
+
+  doCommand: function(aCommand) {
+    this._browser.messageManager.sendAsyncMessage("ControllerCommands:Do", aCommand);
+  },
+
+  getCommandStateWithParams: function(aCommand, aCommandParams) {
+    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+  },
+
+  doCommandWithParams: function(aCommand, aCommandParams) {
+    let cmd = {
+      cmd: aCommand,
+      params: null
+    };
+    if (aCommand == "cmd_lookUpDictionary") {
+      // Although getBoundingClientRect of the element is logical pixel, but
+      // x and y parameter of cmd_lookUpDictionary are device pixel.
+      // So we need calculate child process's coordinate using correct unit.
+      let rect = this._browser.getBoundingClientRect();
+      let scale = this._browser.ownerDocument.defaultView.devicePixelRatio;
+      cmd.params = {
+        x:  {
+          type: "long",
+          value: aCommandParams.getLongValue("x") - rect.left * scale
+        },
+        y: {
+          type: "long",
+          value: aCommandParams.getLongValue("y") - rect.top * scale
+        }
+      };
+    } else {
+      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    }
+    this._browser.messageManager.sendAsyncMessage(
+      "ControllerCommands:DoWithParams", cmd);
+  },
+
+  getSupportedCommands: function(aCount, aCommands) {
+    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+  },
+
+  onEvent: function () {},
+
+  // This is intended to be called from the remote-browser binding to update
+  // the enabled and disabled commands.
+  enableDisableCommands: function(aAction,
+                                  aEnabledLength, aEnabledCommands,
+                                  aDisabledLength, aDisabledCommands) {
+    // Clear the list first
+    this._supportedCommands = { };
+
+    for (let c = 0; c < aEnabledLength; c++) {
+      this._supportedCommands[aEnabledCommands[c]] = true;
+    }
+
+    for (let c = 0; c < aDisabledLength; c++) {
+      this._supportedCommands[aDisabledCommands[c]] = false;
+    }
+
+    this._browser.ownerDocument.defaultView.updateCommands(aAction);
+  }
+};