linux_aura: Three fixes for switching themes.

chrome/browser/themes/theme_service_aurax11.cc

+// Copyright (c) 2013 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/themes/theme_service_aurax11.h"
+
+#include "base/bind.h"
+#include "base/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/pref_names.h"
+#include "ui/gfx/image/image.h"
+#include "ui/linux_ui/linux_ui.h"
+
+ThemeServiceAuraX11::ThemeServiceAuraX11()
+    : use_system_theme_(false) {
+}
+
+ThemeServiceAuraX11::~ThemeServiceAuraX11() {}
+
+void ThemeServiceAuraX11::Init(Profile* profile) {
+  registrar_.Init(profile->GetPrefs());
+  registrar_.Add(prefs::kUsesSystemTheme,
+                 base::Bind(&ThemeServiceAuraX11::OnUsesSystemThemeChanged,
+                            base::Unretained(this)));
+  use_system_theme_ = profile->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme);
+
+  ThemeService::Init(profile);
+}
+
+gfx::Image ThemeServiceAuraX11::GetImageNamed(int id) const {
+  const ui::LinuxUI* linux_ui = ui::LinuxUI::instance();
+  if (use_system_theme_ && linux_ui) {
+    gfx::Image image = linux_ui->GetThemeImageNamed(id);
+    if (!image.IsEmpty())
+      return image;
+  }
+
+  return ThemeService::GetImageNamed(id);
+}
+
+SkColor ThemeServiceAuraX11::GetColor(int id) const {
+  const ui::LinuxUI* linux_ui = ui::LinuxUI::instance();
+  SkColor color;
+  if (use_system_theme_ && linux_ui && linux_ui->GetColor(id, &color))
+    return color;
+
+  return ThemeService::GetColor(id);
+}
+
+bool ThemeServiceAuraX11::HasCustomImage(int id) const {
+  const ui::LinuxUI* linux_ui = ui::LinuxUI::instance();
+  if (use_system_theme_ && linux_ui)
+    return linux_ui->HasCustomImage(id);
+
+  return ThemeService::HasCustomImage(id);
+}
+
+void ThemeServiceAuraX11::SetTheme(const extensions::Extension* extension) {
+  profile()->GetPrefs()->SetBoolean(prefs::kUsesSystemTheme, false);
+  ThemeService::SetTheme(extension);
+}
+
+void ThemeServiceAuraX11::UseDefaultTheme() {
+  profile()->GetPrefs()->SetBoolean(prefs::kUsesSystemTheme, false);
+  ThemeService::UseDefaultTheme();
+}
+
+void ThemeServiceAuraX11::SetNativeTheme() {
+  profile()->GetPrefs()->SetBoolean(prefs::kUsesSystemTheme, true);
+  ClearAllThemeData();
+  NotifyThemeChanged();
+}
+
+bool ThemeServiceAuraX11::UsingDefaultTheme() const {
+  return !use_system_theme_ && ThemeService::UsingDefaultTheme();
+}
+
+bool ThemeServiceAuraX11::UsingNativeTheme() const {
+  return use_system_theme_;
+}
+
+void ThemeServiceAuraX11::OnUsesSystemThemeChanged() {
+  use_system_theme_ =
+      profile()->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme);
+}