GTK: disable theme buttons in options dialog when we are already using that t...

chrome/browser/gtk/options/content_page_gtk.cc

 // Copyright (c) 2009 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/options/content_page_gtk.h"
 
 #include "app/gfx/gtk_util.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/gtk/clear_browsing_data_dialog_gtk.h"
 #include "chrome/browser/gtk/gtk_chrome_link_button.h"
+#include "chrome/browser/gtk/gtk_theme_provider.h"
 #include "chrome/browser/gtk/import_dialog_gtk.h"
 #include "chrome/browser/gtk/options/options_layout_gtk.h"
 #include "chrome/browser/gtk/options/passwords_exceptions_window_gtk.h"
 #include "chrome/common/gtk_util.h"
+#include "chrome/common/notification_service.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
 #include "chrome/common/url_constants.h"
 #include "grit/app_resources.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 // ContentPageGtk, public:
@@ skipping 21 matching lines @@
   // Add preferences observers.
   ask_to_save_passwords_.Init(prefs::kPasswordManagerEnabled,
                               profile->GetPrefs(), this);
   ask_to_save_form_autofill_.Init(prefs::kFormAutofillEnabled,
                                   profile->GetPrefs(), this);
   if (browser_defaults::kCanToggleSystemTitleBar) {
     use_custom_chrome_frame_.Init(prefs::kUseCustomChromeFrame,
                                   profile->GetPrefs(), this);
   }
 
-  // Load initial values
+  // Load initial values.
   NotifyPrefChanged(NULL);
+
+  registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED,
+                 NotificationService::AllSources());
+  ObserveThemeChanged();
 }
 
 ContentPageGtk::~ContentPageGtk() {
 }
 
+///////////////////////////////////////////////////////////////////////////////
+// ContentPageGtk, private:
+
 // If |pref_name| is NULL, set the state of all the widgets. (This is used
 // in ContentPageGtk() above to initialize the dialog.) Otherwise, reset the
 // state of the widget for the given preference name, as it has changed.
 void ContentPageGtk::NotifyPrefChanged(const std::wstring* pref_name) {
   initializing_ = true;
   if (!pref_name || *pref_name == prefs::kPasswordManagerEnabled) {
     if (ask_to_save_passwords_.GetValue()) {
       gtk_toggle_button_set_active(
           GTK_TOGGLE_BUTTON(passwords_asktosave_radio_), TRUE);
     } else {
@@ skipping 16 matching lines @@
       gtk_toggle_button_set_active(
           GTK_TOGGLE_BUTTON(system_title_bar_hide_radio_), TRUE);
     } else {
       gtk_toggle_button_set_active(
           GTK_TOGGLE_BUTTON(system_title_bar_show_radio_), TRUE);
     }
   }
   initializing_ = false;
 }
 
-///////////////////////////////////////////////////////////////////////////////
-// ContentPageGtk, private:
+void ContentPageGtk::Observe(NotificationType type,
+                             const NotificationSource& source,
+                             const NotificationDetails& details) {
+  if (type == NotificationType::BROWSER_THEME_CHANGED)
+    ObserveThemeChanged();
+  else
+    OptionsPageBase::Observe(type, source, details);
+}
+
+void ContentPageGtk::ObserveThemeChanged() {
+#if defined(TOOLKIT_GTK)
+  GtkThemeProvider* provider = GtkThemeProvider::GetFrom(profile());
+  bool is_gtk_theme = provider->UseGtkTheme();
+  gtk_widget_set_sensitive(gtk_theme_button_, !is_gtk_theme);
+#else
+  BrowserThemeProvider* provider =
+      reinterpret_cast<BrowserThemeProvider*>profile()->GetThemeProvider();
+  bool is_gtk_theme = false;
+#endif
+
+  bool is_classic_theme = !is_gtk_theme && provider->GetThemeID().empty();
+  gtk_widget_set_sensitive(themes_reset_button_, !is_classic_theme);
+}
 
 GtkWidget* ContentPageGtk::InitPasswordSavingGroup() {
   GtkWidget* vbox = gtk_vbox_new(FALSE, gtk_util::kControlSpacing);
 
   // Ask to save radio button.
   passwords_asktosave_radio_ = gtk_radio_button_new_with_label(NULL,
       l10n_util::GetStringUTF8(IDS_OPTIONS_PASSWORDS_ASKTOSAVE).c_str());
   g_signal_connect(G_OBJECT(passwords_asktosave_radio_), "toggled",
                    G_CALLBACK(OnPasswordRadioToggled), this);
   gtk_box_pack_start(GTK_BOX(vbox), passwords_asktosave_radio_, FALSE,
@@ skipping 75 matching lines @@
 
   return vbox;
 }
 
 GtkWidget* ContentPageGtk::InitThemesGroup() {
   GtkWidget* vbox = gtk_vbox_new(FALSE, gtk_util::kControlSpacing);
   GtkWidget* hbox = gtk_hbox_new(FALSE, gtk_util::kControlSpacing);
 
 #if defined(TOOLKIT_GTK)
   // GTK theme button.
-  GtkWidget* gtk_theme_button = gtk_button_new_with_label(
+  gtk_theme_button_ = gtk_button_new_with_label(
       l10n_util::GetStringUTF8(IDS_THEMES_GTK_BUTTON).c_str());
-  g_signal_connect(G_OBJECT(gtk_theme_button), "clicked",
+  g_signal_connect(G_OBJECT(gtk_theme_button_), "clicked",
                    G_CALLBACK(OnGtkThemeButtonClicked), this);
-  gtk_box_pack_start(GTK_BOX(hbox), gtk_theme_button, FALSE, FALSE, 0);
+  gtk_box_pack_start(GTK_BOX(hbox), gtk_theme_button_, FALSE, FALSE, 0);
 #endif
 
   // Reset theme button.
-  GtkWidget* themes_reset_button = gtk_button_new_with_label(
+  themes_reset_button_ = gtk_button_new_with_label(
       l10n_util::GetStringUTF8(IDS_THEMES_SET_CLASSIC).c_str());
-  g_signal_connect(G_OBJECT(themes_reset_button), "clicked",
+  g_signal_connect(G_OBJECT(themes_reset_button_), "clicked",
                    G_CALLBACK(OnResetDefaultThemeButtonClicked), this);
-  gtk_box_pack_start(GTK_BOX(hbox), themes_reset_button, FALSE, FALSE, 0);
+  gtk_box_pack_start(GTK_BOX(hbox), themes_reset_button_, FALSE, FALSE, 0);
 
   // Get themes button.
   GtkWidget* themes_gallery_button = gtk_chrome_link_button_new(
       l10n_util::GetStringUTF8(IDS_THEMES_GALLERY_BUTTON).c_str());
   g_signal_connect(G_OBJECT(themes_gallery_button), "clicked",
                    G_CALLBACK(OnGetThemesButtonClicked), this);
   gtk_box_pack_start(GTK_BOX(hbox), themes_gallery_button, FALSE, FALSE, 0);
 
   gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 
@@ skipping 134 matching lines @@
       GTK_TOGGLE_BUTTON(page->form_autofill_asktosave_radio_));
   if (enabled) {
     page->UserMetricsRecordAction(L"Options_FormAutofill_Enable",
                                   page->profile()->GetPrefs());
   } else {
     page->UserMetricsRecordAction(L"Options_FormAutofill_Disable",
                                   page->profile()->GetPrefs());
   }
   page->ask_to_save_form_autofill_.SetValue(enabled);
 }