Initial skeleton for System Indicator API

chrome/common/extensions/api/system_indicator.idl

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Manages an app's system indicator icon, an image displayed in the system's
+// menubar, system tray, or other visible area provided by the OS.

[not at google - send to devlin, 2012/11/21 23:39:23]

could you add note like "this is modelled as an extension action API, so
analogous to browserAction.json and pageAction.json".

[dewittj, 2012/11/26 18:32:58]

Done.

+namespace systemIndicator {
+  dictionary SetIconDetails {
+    any? path;
+    any? imageData;
+  };
+
+  callback DoneCallback = void ();
+
+  interface Functions {
+    // Set the image to be used as an indicator icon, using a set of ImageData
+    // objects. These objects should have multiple resolutions so that an
+    // appropriate size can be selected for the given icon size and DPI scaling
+    // settings. Only square ImageData objects are accepted.
+    static void setIcon(SetIconDetails details, optional DoneCallback callback);
+
+    // Show the icon in the status tray.
+    static void enable(optional DoneCallback callback);
+
+    // Hide the icon from the status tray.
+    static void disable(optional DoneCallback callback);
+  };
+
+  interface Events {
+    // Fired only when a click on the icon does not result in a menu being
+    // shown.
+    static void onClicked();
+  };
+};