chrome/browser/themes/theme_service_aurax11.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/themes/theme_service_aurax11.h"
   6
   7 #include "base/bind.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/browser/themes/custom_theme_supplier.h"
  11 #include "chrome/common/pref_names.h"
  12 #include "ui/gfx/image/image.h"
  13 #include "ui/native_theme/native_theme_aura.h"
  14 #include "ui/views/linux_ui/linux_ui.h"
  15
  16 namespace {
  17
  18 class SystemThemeX11 : public CustomThemeSupplier {
  19  public:
  20   explicit SystemThemeX11(PrefService* pref_service);
  21
  22   // Overridden from CustomThemeSupplier:
  23   void StartUsingTheme() override;
  24   void StopUsingTheme() override;
  25   bool GetColor(int id, SkColor* color) const override;
  26   gfx::Image GetImageNamed(int id) override;
  27   bool HasCustomImage(int id) const override;
  28
  29  private:
  30   ~SystemThemeX11() override;
  31
  32   // These pointers are not owned by us.
  33   views::LinuxUI* const linux_ui_;
  34   PrefService* const pref_service_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(SystemThemeX11);
  37 };
  38
  39 SystemThemeX11::SystemThemeX11(PrefService* pref_service)
  40     : CustomThemeSupplier(NATIVE_X11),
  41       linux_ui_(views::LinuxUI::instance()),
  42       pref_service_(pref_service) {}
  43
  44 void SystemThemeX11::StartUsingTheme() {
  45   pref_service_->SetBoolean(prefs::kUsesSystemTheme, true);
  46   // Have the former theme notify its observers of change.
  47   ui::NativeThemeAura::instance()->NotifyObservers();
  48 }
  49
  50 void SystemThemeX11::StopUsingTheme() {
  51   pref_service_->SetBoolean(prefs::kUsesSystemTheme, false);
  52   // Have the former theme notify its observers of change.
  53   if (linux_ui_)
  54     linux_ui_->GetNativeTheme(NULL)->NotifyObservers();
  55 }
  56
  57 bool SystemThemeX11::GetColor(int id, SkColor* color) const {
  58   return linux_ui_ && linux_ui_->GetColor(id, color);
  59 }
  60
  61 gfx::Image SystemThemeX11::GetImageNamed(int id) {
  62   return linux_ui_ ? linux_ui_->GetThemeImageNamed(id) : gfx::Image();
  63 }
  64
  65 bool SystemThemeX11::HasCustomImage(int id) const {
  66   return linux_ui_ && linux_ui_->HasCustomImage(id);
  67 }
  68
  69 SystemThemeX11::~SystemThemeX11() {}
  70
  71 }  // namespace
  72
  73 ThemeServiceAuraX11::ThemeServiceAuraX11() {}
  74
  75 ThemeServiceAuraX11::~ThemeServiceAuraX11() {}
  76
  77 bool ThemeServiceAuraX11::ShouldInitWithSystemTheme() const {
  78   return profile()->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme);
  79 }
  80
  81 void ThemeServiceAuraX11::UseSystemTheme() {
  82   SetCustomDefaultTheme(new SystemThemeX11(profile()->GetPrefs()));
  83 }
  84
  85 bool ThemeServiceAuraX11::IsSystemThemeDistinctFromDefaultTheme() const {
  86   return true;
  87 }
  88
  89 bool ThemeServiceAuraX11::UsingDefaultTheme() const {
  90   return ThemeService::UsingDefaultTheme() && !UsingSystemTheme();
  91 }
  92
  93 bool ThemeServiceAuraX11::UsingSystemTheme() const {
  94   const CustomThemeSupplier* theme_supplier = get_theme_supplier();
  95   return theme_supplier &&
  96          theme_supplier->get_theme_type() == CustomThemeSupplier::NATIVE_X11;
  97 }