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      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/views/linux_ui/linux_ui.h"
     14 
     15 namespace {
     16 
     17 class NativeThemeX11 : public CustomThemeSupplier {
     18  public:
     19   explicit NativeThemeX11(PrefService* pref_service);
     20 
     21   // Overridden from CustomThemeSupplier:
     22   virtual void StartUsingTheme() OVERRIDE;
     23   virtual void StopUsingTheme() OVERRIDE;
     24   virtual bool GetColor(int id, SkColor* color) const OVERRIDE;
     25   virtual gfx::Image GetImageNamed(int id) OVERRIDE;
     26   virtual bool HasCustomImage(int id) const OVERRIDE;
     27 
     28  private:
     29   virtual ~NativeThemeX11();
     30 
     31   // These pointers are not owned by us.
     32   views::LinuxUI* const linux_ui_;
     33   PrefService* const pref_service_;
     34 
     35   DISALLOW_COPY_AND_ASSIGN(NativeThemeX11);
     36 };
     37 
     38 NativeThemeX11::NativeThemeX11(PrefService* pref_service)
     39     : CustomThemeSupplier(NATIVE_X11),
     40       linux_ui_(views::LinuxUI::instance()),
     41       pref_service_(pref_service) {}
     42 
     43 void NativeThemeX11::StartUsingTheme() {
     44   if (linux_ui_)
     45     linux_ui_->SetUseSystemTheme(true);
     46 
     47   pref_service_->SetBoolean(prefs::kUsesSystemTheme, true);
     48 }
     49 
     50 void NativeThemeX11::StopUsingTheme() {
     51   if (linux_ui_)
     52     linux_ui_->SetUseSystemTheme(false);
     53 
     54   pref_service_->SetBoolean(prefs::kUsesSystemTheme, false);
     55 }
     56 
     57 bool NativeThemeX11::GetColor(int id, SkColor* color) const {
     58   return linux_ui_ && linux_ui_->GetColor(id, color);
     59 }
     60 
     61 gfx::Image NativeThemeX11::GetImageNamed(int id) {
     62   return linux_ui_ ? linux_ui_->GetThemeImageNamed(id) : gfx::Image();
     63 }
     64 
     65 bool NativeThemeX11::HasCustomImage(int id) const {
     66   return linux_ui_ && linux_ui_->HasCustomImage(id);
     67 }
     68 
     69 NativeThemeX11::~NativeThemeX11() {}
     70 
     71 }  // namespace
     72 
     73 ThemeServiceAuraX11::ThemeServiceAuraX11() {}
     74 
     75 ThemeServiceAuraX11::~ThemeServiceAuraX11() {}
     76 
     77 bool ThemeServiceAuraX11::ShouldInitWithNativeTheme() const {
     78   return profile()->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme);
     79 }
     80 
     81 void ThemeServiceAuraX11::SetNativeTheme() {
     82   SetCustomDefaultTheme(new NativeThemeX11(profile()->GetPrefs()));
     83 }
     84 
     85 bool ThemeServiceAuraX11::UsingDefaultTheme() const {
     86   return ThemeService::UsingDefaultTheme() && !UsingNativeTheme();
     87 }
     88 
     89 bool ThemeServiceAuraX11::UsingNativeTheme() const {
     90   const CustomThemeSupplier* theme_supplier = get_theme_supplier();
     91   return theme_supplier &&
     92          theme_supplier->get_theme_type() == CustomThemeSupplier::NATIVE_X11;
     93 }
     94