gtk: Implement status icons on linux.

BUG=37375
TEST=out/Debug/unit_tests --gtest_filter=StatusTrayGtkTest.*

Patch from Thiago Farina <thiago.farina@gmail.com>

Review URL: http://codereview.chromium.org/1421001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@43553 0039d316-1c4b-4281-b951-d872f2087c98

6 files changed, 173 insertions, 1 deletions

diff --git a/chrome/browser/gtk/status_icons/status_icon_gtk.cc b/chrome/browser/gtk/status_icons/status_icon_gtk.cc
new file mode 100644
index 0000000..c42b761
--- /dev/null
+++ b/chrome/browser/gtk/status_icons/status_icon_gtk.cc
@@ -0,0 +1,44 @@
+// Copyright (c) 2010 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/gtk/status_icons/status_icon_gtk.h"
+
+#include "base/string16.h"
+#include "base/logging.h"
+#include "base/utf_string_conversions.h"
+#include "gfx/gtk_util.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+
+StatusIconGtk::StatusIconGtk() {
+  icon_ = gtk_status_icon_new();
+  gtk_status_icon_set_visible(icon_, TRUE);
+
+  g_signal_connect(icon_, "activate",
+                   G_CALLBACK(OnClick), this);
+}
+
+StatusIconGtk::~StatusIconGtk() {
+  g_object_unref(icon_);
+}
+
+void StatusIconGtk::SetImage(const SkBitmap& image) {
+  if (image.isNull())
+    return;
+
+  GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(&image);
+  gtk_status_icon_set_from_pixbuf(icon_, pixbuf);
+}
+
+void StatusIconGtk::SetPressedImage(const SkBitmap& image) {
+  // Ignore pressed images, since the standard on Linux is to not highlight
+  // pressed status icons.
+}
+
+void StatusIconGtk::SetToolTip(const string16& tool_tip) {
+  gtk_status_icon_set_tooltip(icon_, UTF16ToUTF8(tool_tip).c_str());
+}
+
+void StatusIconGtk::OnClick(GtkWidget* widget, StatusIconGtk* status_icon) {
+  status_icon->DispatchClickEvent();
+}
diff --git a/chrome/browser/gtk/status_icons/status_icon_gtk.h b/chrome/browser/gtk/status_icons/status_icon_gtk.h
new file mode 100644
index 0000000..7ce1df2
--- /dev/null
+++ b/chrome/browser/gtk/status_icons/status_icon_gtk.h
@@ -0,0 +1,34 @@
+// Copyright (c) 2010 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.
+
+#ifndef CHROME_BROWSER_GTK_STATUS_ICONS_STATUS_ICON_GTK_H_
+#define CHROME_BROWSER_GTK_STATUS_ICONS_STATUS_ICON_GTK_H_
+
+#include <gtk/gtk.h>
+
+#include "chrome/browser/status_icons/status_icon.h"
+
+class SkBitmap;
+
+class StatusIconGtk : public StatusIcon {
+ public:
+  StatusIconGtk();
+  virtual ~StatusIconGtk();
+
+  // Overridden from StatusIcon:
+  virtual void SetImage(const SkBitmap& image);
+  virtual void SetPressedImage(const SkBitmap& image);
+  virtual void SetToolTip(const string16& tool_tip);
+
+  // Exposed for testing.
+  static void OnClick(GtkWidget* widget, StatusIconGtk* status_icon);
+
+ private:
+  // The currently-displayed icon for the window.
+  GtkStatusIcon* icon_;
+
+  DISALLOW_COPY_AND_ASSIGN(StatusIconGtk);
+};
+
+#endif  // CHROME_BROWSER_GTK_STATUS_ICONS_STATUS_ICON_GTK_H_
diff --git a/chrome/browser/gtk/status_icons/status_tray_gtk.cc b/chrome/browser/gtk/status_icons/status_tray_gtk.cc
new file mode 100644
index 0000000..6b2764e
--- /dev/null
+++ b/chrome/browser/gtk/status_icons/status_tray_gtk.cc
@@ -0,0 +1,21 @@
+// Copyright (c) 2010 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/gtk/status_icons/status_tray_gtk.h"
+
+#include "chrome/browser/gtk/status_icons/status_icon_gtk.h"
+
+StatusTrayGtk::StatusTrayGtk() {
+}
+
+StatusTrayGtk::~StatusTrayGtk() {
+}
+
+StatusIcon* StatusTrayGtk::CreateStatusIcon() {
+  return new StatusIconGtk();
+}
+
+StatusTray* StatusTray::Create() {
+  return new StatusTrayGtk();
+}
diff --git a/chrome/browser/gtk/status_icons/status_tray_gtk.h b/chrome/browser/gtk/status_icons/status_tray_gtk.h
new file mode 100644
index 0000000..a41e5df0
--- /dev/null
+++ b/chrome/browser/gtk/status_icons/status_tray_gtk.h
@@ -0,0 +1,23 @@
+// Copyright (c) 2010 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.
+
+#ifndef CHROME_BROWSER_GTK_STATUS_ICONS_STATUS_TRAY_GTK_H_
+#define CHROME_BROWSER_GTK_STATUS_ICONS_STATUS_TRAY_GTK_H_
+
+#include "chrome/browser/status_icons/status_tray.h"
+
+class StatusTrayGtk : public StatusTray {
+ public:
+  StatusTrayGtk();
+  ~StatusTrayGtk();
+
+ protected:
+  // Overriden from StatusTray:
+  virtual StatusIcon* CreateStatusIcon();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(StatusTrayGtk);
+};
+
+#endif  // CHROME_BROWSER_GTK_STATUS_ICONS_STATUS_TRAY_GTK_H_
diff --git a/chrome/browser/gtk/status_icons/status_tray_gtk_unittest.cc b/chrome/browser/gtk/status_icons/status_tray_gtk_unittest.cc
new file mode 100644
index 0000000..58b2616
--- /dev/null
+++ b/chrome/browser/gtk/status_icons/status_tray_gtk_unittest.cc
@@ -0,0 +1,50 @@
+// Copyright (c) 2010 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 "app/resource_bundle.h"
+#include "base/string_util.h"
+#include "chrome/browser/gtk/status_icons/status_icon_gtk.h"
+#include "chrome/browser/gtk/status_icons/status_tray_gtk.h"
+#include "grit/browser_resources.h"
+#include "grit/theme_resources.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class MockStatusIconObserver : public StatusIcon::Observer {
+ public:
+  MOCK_METHOD0(OnClicked, void());
+};
+
+TEST(StatusTrayGtkTest, CreateTray) {
+  // Just tests creation/destruction.
+  StatusTrayGtk tray;
+}
+
+TEST(StatusTrayGtkTest, CreateIcon) {
+  // Create an icon, set the images and tooltip, then shut it down.
+  StatusTrayGtk tray;
+  StatusIcon* icon = tray.GetStatusIcon(ASCIIToUTF16("test"));
+  SkBitmap* bitmap = ResourceBundle::GetSharedInstance().GetBitmapNamed(
+      IDR_STATUS_TRAY_ICON);
+  icon->SetImage(*bitmap);
+  icon->SetPressedImage(*bitmap);
+  icon->SetToolTip(ASCIIToUTF16("tool tip"));
+}
+
+TEST(StatusTrayGtkTest, ClickOnIcon) {
+  // Create an icon, send a fake click event, make sure observer is called.
+  StatusTrayGtk tray;
+  StatusIconGtk* icon = static_cast<StatusIconGtk*>(
+      tray.GetStatusIcon(ASCIIToUTF16("test")));
+  MockStatusIconObserver observer;
+  icon->AddObserver(&observer);
+  EXPECT_CALL(observer, OnClicked());
+  // Mimic a click.
+  icon->OnClick(NULL, icon);
+  icon->RemoveObserver(&observer);
+}
+
+}  // namespace
diff --git a/chrome/browser/status_icons/status_tray_manager.cc b/chrome/browser/status_icons/status_tray_manager.cc
index b5465c3..4040a51 100644
--- a/chrome/browser/status_icons/status_tray_manager.cc
+++ b/chrome/browser/status_icons/status_tray_manager.cc
@@ -23,7 +23,7 @@ StatusTrayManager::~StatusTrayManager() {
 }
 
 void StatusTrayManager::Init(Profile* profile) {
-#if !defined(OS_LINUX)
+#if !defined(OS_CHROMEOS)
   DCHECK(profile);
   profile_ = profile;
   status_tray_.reset(StatusTray::Create());