Linux status icon for Ubuntu Unity

chrome/browser/ui/libgtk2ui/gtk2_ui.cc

 // 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.
 
 #include "chrome/browser/ui/libgtk2ui/gtk2_ui.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "base/nix/mime_util_xdg.h"
 #include "base/stl_util.h"
+#include "base/strings/stringprintf.h"
 #include "chrome/browser/themes/theme_properties.h"
+#include "chrome/browser/ui/libgtk2ui/app_indicator_icon.h"
 #include "chrome/browser/ui/libgtk2ui/chrome_gtk_frame.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_util.h"
 #include "chrome/browser/ui/libgtk2ui/native_theme_gtk2.h"
 #include "chrome/browser/ui/libgtk2ui/select_file_dialog_impl.h"
 #include "chrome/browser/ui/libgtk2ui/skia_utils_gtk2.h"
 #include "chrome/browser/ui/libgtk2ui/unity_service.h"
 #include "grit/theme_resources.h"
 #include "grit/ui_resources.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
@@ skipping 16 matching lines @@
 // - Render and inject the button overlay from the gtk theme.
 // - Render and inject the omnibox background.
 // - Listen for the "style-set" signal on |fake_frame_| and recreate theme
 //   colors and images.
 // - Allow not using the theme.
 // - Make sure to test with a light on dark theme, too.
 // - Everything else that we're not doing.
 
 namespace {
 
+// Prefix for app indicator ids
+const char kAppIndicatorIdPrefix[] = "chrome_app_indicator_";
+
+// Number of app indicators used (used as part of app-indicator id).
+int indicators_count;
+
 // The size of the rendered toolbar image.
 const int kToolbarImageWidth = 64;
 const int kToolbarImageHeight = 128;
 
 // How much to tint the GTK+ color lighter at the top of the window.
 const color_utils::HSL kGtkFrameShift = { -1, -1, 0.58 };
 
 // How much to tint the GTK+ color when an explicit frame color hasn't been
 // specified.
 const color_utils::HSL kDefaultFrameShift = { -1, -1, 0.4 };
@@ skipping 235 matching lines @@
   // broadcast new theme images and colors. Only realized widgets have style
   // properties, too, which we query for some colors.
   gtk_widget_realize(fake_frame_);
   gtk_widget_realize(fake_window_);
   // TODO: Also listen for "style-set" on the fake frame.
 
   // TODO(erg): Be lazy about generating this data and connect it to the
   // style-set signal handler.
   LoadGtkValues();
   SetXDGIconTheme();
+
+  indicators_count = 0;
 }
 
 Gtk2UI::~Gtk2UI() {
   gtk_widget_destroy(fake_window_);
   gtk_widget_destroy(fake_frame_);
   fake_label_.Destroy();
   fake_entry_.Destroy();
 
   ClearAllThemeData();
 }
@@ skipping 57 matching lines @@
 void Gtk2UI::SetDownloadCount(int count) const {
   if (unity::IsRunning())
     unity::SetDownloadCount(count);
 }
 
 void Gtk2UI::SetProgressFraction(float percentage) const {
   if (unity::IsRunning())
     unity::SetProgressFraction(percentage);
 }
 
+bool Gtk2UI::IsStatusIconSupported() const {
+  return AppIndicatorIcon::CouldOpen();
+}
+
+scoped_ptr<StatusIconLinux> Gtk2UI::CreateLinuxStatusIcon() const {
+  if (AppIndicatorIcon::CouldOpen()) {
+    ++indicators_count;
+    return scoped_ptr<StatusIconLinux>(new AppIndicatorIcon(
+        base::StringPrintf("%s%d", kAppIndicatorIdPrefix, indicators_count)));
+  } else {
+    return scoped_ptr<StatusIconLinux>();
+  }
+}
+
 ui::SelectFileDialog* Gtk2UI::CreateSelectFileDialog(
     ui::SelectFileDialog::Listener* listener,
     ui::SelectFilePolicy* policy) const {
   return SelectFileDialogImpl::Create(listener, policy);
 }
 
 void Gtk2UI::GetScrollbarColors(GdkColor* thumb_active_color,
                                 GdkColor* thumb_inactive_color,
                                 GdkColor* track_color) {
   const GdkColor* theme_thumb_active = NULL;
@@ skipping 616 matching lines @@
 
 void Gtk2UI::ClearAllThemeData() {
   gtk_images_.clear();
 }
 
 }  // namespace libgtk2ui
 
 ui::LinuxUI* BuildGtk2UI() {
   return new libgtk2ui::Gtk2UI;
 }