Allow storing display preferences per device.

chrome/browser/ui/webui/options/chromeos/display_options_handler.cc

 // Copyright (c) 2012 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/ui/webui/options/chromeos/display_options_handler.h"
 
 #include <string>
 
 #include "ash/display/display_controller.h"
 #include "ash/display/output_configurator_animation.h"
 #include "ash/shell.h"
 #include "base/bind.h"
 #include "base/json/json_value_converter.h"
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
-#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/chromeos/display/display_preferences.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/display/output_configurator.h"
 #include "content/public/browser/web_ui.h"
 #include "grit/generated_resources.h"
 #include "ui/aura/env.h"
 #include "ui/aura/display_manager.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/rect.h"
 
 namespace chromeos {
 namespace options {
 
-using ash::internal::DisplayController;
-
 DisplayOptionsHandler::DisplayOptionsHandler() {
   aura::Env::GetInstance()->display_manager()->AddObserver(this);
 }
 
 DisplayOptionsHandler::~DisplayOptionsHandler() {
   aura::Env::GetInstance()->display_manager()->RemoveObserver(this);
 }
 
 void DisplayOptionsHandler::GetLocalizedValues(
     DictionaryValue* localized_strings) {
@@ skipping 52 matching lines @@
       output_state != chromeos::STATE_INVALID &&
       output_state != chromeos::STATE_HEADLESS &&
       output_state != chromeos::STATE_SINGLE);
   web_ui()->CallJavascriptFunction(
       "options.BrowserOptions.showDisplayOptions", show_options);
 }
 
 void DisplayOptionsHandler::SendDisplayInfo() {
   aura::DisplayManager* display_manager =
       aura::Env::GetInstance()->display_manager();
+  ash::DisplayController* display_controller =
+      ash::Shell::GetInstance()->display_controller();
   chromeos::OutputConfigurator* output_configurator =
       ash::Shell::GetInstance()->output_configurator();
   base::FundamentalValue mirroring(
       output_configurator->output_state() == chromeos::STATE_DUAL_MIRROR);
 
   base::ListValue displays;
   for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
     const gfx::Display* display = display_manager->GetDisplayAt(i);
     const gfx::Rect& bounds = display->bounds();
     base::DictionaryValue* js_display = new base::DictionaryValue();
     js_display->SetDouble("id", display->id());
     js_display->SetDouble("x", bounds.x());
     js_display->SetDouble("y", bounds.y());
     js_display->SetDouble("width", bounds.width());
     js_display->SetDouble("height", bounds.height());
     js_display->SetString("name", display_manager->GetDisplayNameAt(i));
     displays.Set(i, js_display);
   }
 
-  PrefService* pref_service = Profile::FromWebUI(web_ui())->GetPrefs();
-  base::FundamentalValue layout(
-      pref_service->GetInteger(prefs::kSecondaryDisplayLayout));
-  base::FundamentalValue offset(
-      pref_service->GetInteger(prefs::kSecondaryDisplayOffset));
+  scoped_ptr<base::Value> layout_value(base::Value::CreateNullValue());
+  scoped_ptr<base::Value> offset_value(base::Value::CreateNullValue());
+  if (display_manager->GetNumDisplays() > 1) {
+    const std::string& secondary_display_name =
+        display_manager->GetDisplayNameAt(1);
+    const ash::DisplayLayout& layout =
+        display_controller->GetLayoutForDisplayName(secondary_display_name);
+    layout_value.reset(new base::FundamentalValue(layout.position));
+    offset_value.reset(new base::FundamentalValue(layout.offset));
+  }
 
   web_ui()->CallJavascriptFunction(
       "options.DisplayOptions.setDisplayInfo",
-      mirroring, displays, layout, offset);
+      mirroring, displays, *layout_value.get(), *offset_value.get());
 }
 
 void DisplayOptionsHandler::FadeOutForMirroringFinished(bool is_mirroring) {
   // We use 'PRIMARY_ONLY' for non-mirroring state for now.
   // TODO(mukai): fix this and support multiple display modes.
   chromeos::OutputState new_state =
       is_mirroring ? STATE_DUAL_MIRROR : STATE_DUAL_PRIMARY_ONLY;
   ash::Shell::GetInstance()->output_configurator()->SetDisplayMode(new_state);
   SendDisplayInfo();
   // Not necessary to start fade-in animation.  OutputConfigurator will do that.
 }
 
 void DisplayOptionsHandler::FadeOutForDisplayLayoutFinished(
     int layout, int offset) {
   PrefService* pref_service = Profile::FromWebUI(web_ui())->GetPrefs();
-  pref_service->SetInteger(prefs::kSecondaryDisplayLayout, layout);
-  pref_service->SetInteger(prefs::kSecondaryDisplayOffset, offset);
+  aura::DisplayManager* display_manager =
+      aura::Env::GetInstance()->display_manager();
+  // Assumes that there are two displays at most and the second item is the
+  // secondary display.
+  if (display_manager->GetNumDisplays() > 1) {
+    gfx::Display* display = display_manager->GetDisplayAt(1);
+    SetDisplayLayoutPref(pref_service, *display, layout, offset);
+  }
+
   SendDisplayInfo();
   ash::Shell::GetInstance()->output_configurator_animation()->
       StartFadeInAnimation();
 }
 
 void DisplayOptionsHandler::HandleDisplayInfo(
     const base::ListValue* unused_args) {
   SendDisplayInfo();
 }
 
 void DisplayOptionsHandler::HandleMirroring(const base::ListValue* args) {
   DCHECK(!args->empty());
   bool is_mirroring = false;
   args->GetBoolean(0, &is_mirroring);
   ash::Shell::GetInstance()->output_configurator_animation()->
       StartFadeOutAnimation(base::Bind(
           &DisplayOptionsHandler::FadeOutForMirroringFinished,
           base::Unretained(this),
           is_mirroring));
 }
 
 void DisplayOptionsHandler::HandleDisplayLayout(const base::ListValue* args) {
   double layout = -1;
   double offset = -1;
   if (!args->GetDouble(0, &layout) || !args->GetDouble(1, &offset)) {
     LOG(ERROR) << "Invalid parameter";
     SendDisplayInfo();
     return;
   }
-  DCHECK_LE(DisplayController::TOP, layout);
-  DCHECK_GE(DisplayController::LEFT, layout);
+  DCHECK_LE(ash::DisplayLayout::TOP, layout);
+  DCHECK_GE(ash::DisplayLayout::LEFT, layout);
   ash::Shell::GetInstance()->output_configurator_animation()->
       StartFadeOutAnimation(base::Bind(
           &DisplayOptionsHandler::FadeOutForDisplayLayoutFinished,
           base::Unretained(this),
           static_cast<int>(layout),
           static_cast<int>(offset)));
 }
 
 }  // namespace options
 }  // namespace chromeos