Bug 783092: LightweightThemeConsumer for Fennec. [r=bmcbride, r=mfinkle]

mobile/android/modules/LightweightThemeConsumer.jsm

@@ -0,0 +1,43 @@
+/* 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/. */
+
+let EXPORTED_SYMBOLS = ["LightweightThemeConsumer"];
+let Cc = Components.classes;
+let Ci = Components.interfaces;
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
+
+function LightweightThemeConsumer(aDocument) {
+  this._doc = aDocument;
+  Services.obs.addObserver(this, "lightweight-theme-styling-update", false);
+
+  this._update(LightweightThemeManager.currentThemeForDisplay);
+}
+
+LightweightThemeConsumer.prototype = {
+  observe: function (aSubject, aTopic, aData) {
+    if (aTopic != "lightweight-theme-styling-update")
+      return;
+
+    this._update(JSON.parse(aData));
+  },
+
+  destroy: function () {
+    Services.obs.removeObserver(this, "lightweight-theme-styling-update");
+    this._doc = null;
+  },
+
+  _update: function (aData) {
+    if (!aData)
+      aData = { headerURL: "", footerURL: "", textcolor: "", accentcolor: "" };
+
+    let active = !!aData.headerURL;
+
+    let msg = active ? { gecko: { type: "LightweightTheme:Update", data: aData } } :
+                       { gecko: { type: "LightweightTheme:Disable" } };
+    let bridge = Cc["@mozilla.org/android/bridge;1"].getService(Ci.nsIAndroidBridge);
+    bridge.handleGeckoMessage(JSON.stringify(msg));
+  }
+}

mobile/android/modules/Makefile.in

@@ -10,6 +10,7 @@ VPATH      = @srcdir@
 include $(DEPTH)/config/autoconf.mk
 
 EXTRA_JS_MODULES = \
+  LightweightThemeConsumer.jsm \
   LocaleRepository.jsm \
   linuxTypes.jsm \
   video.jsm \

toolkit/content/Makefile.in

@@ -70,11 +70,14 @@ EXTRA_JS_MODULES = \
   $(NULL)
 
 EXTRA_PP_JS_MODULES = \
-  LightweightThemeConsumer.jsm \
   PrivateBrowsingUtils.jsm \
   Services.jsm \
   WindowDraggingUtils.jsm \
   Troubleshoot.jsm \
   $(NULL)
 
+ifneq (Android,$(OS_TARGET))
+EXTRA_PP_JS_MODULES += LightweightThemeConsumer.jsm
+endif
+
 include $(topsrcdir)/config/rules.mk