TaskManager: Added functionality to remember the size of the task manager dialog.

chrome/browser/ui/webui/task_manager_dialog.cc

 // Copyright (c) 2011 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/task_manager_dialog.h"
 
 #include "base/bind.h"
 #include "base/memory/singleton.h"
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/platform_util.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/dialog_style.h"
 #include "chrome/browser/ui/webui/html_dialog_ui.h"
+#include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "grit/google_chrome_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if defined(OS_CHROMEOS)
 #include "ui/views/widget/widget.h"
 #endif
 
 using content::BrowserThread;
 
@@ skipping 24 matching lines @@
     url_string += "showclose=1&showtitle=1&";
 #endif  // defined(OS_CHROMEOS)
     if (is_background_page_mode_)
       url_string += "background=1";
     return GURL(url_string);
   }
   virtual void GetWebUIMessageHandlers(
       std::vector<WebUIMessageHandler*>* handlers) const OVERRIDE {
   }
   virtual void GetDialogSize(gfx::Size* size) const OVERRIDE {
+    // If dialog's bounds are previously saved, use them.
+    if (g_browser_process->local_state()) {
+      const DictionaryValue* placement_pref =
+          g_browser_process->local_state()->GetDictionary(
+          prefs::kTaskManagerWindowPlacement);
+      int width, height;
+      if (placement_pref &&
+          placement_pref->GetInteger("width", &width) &&
+          placement_pref->GetInteger("height", &height)) {
+        size->SetSize(std::max(1, width), std::max(1, height));
+        return;
+      }
+    }
+
+    // Otherwise set default size.
     size->SetSize(640, 480);
   }
   virtual std::string GetDialogArgs() const OVERRIDE {
     return std::string();
   }
   virtual void OnDialogClosed(const std::string& json_retval) OVERRIDE {
     OnCloseDialog();
   }
   virtual void OnCloseContents(TabContents* source, bool* out_close_dialog)
       OVERRIDE {
     *out_close_dialog = true;
   }
   virtual bool ShouldShowDialogTitle() const OVERRIDE {
     return false;
   }
   virtual bool HandleContextMenu(const ContextMenuParams& params) OVERRIDE {
     return true;
   }
+  virtual void StoreDialogSize(const gfx::Rect dialog_bounds) OVERRIDE {
+   // Store the dialog's bounds so that it can be restored with the same bounds
+   // the next time it's opened.
+   if (g_browser_process->local_state()) {
+     DictionaryPrefUpdate update(g_browser_process->local_state(),
+                                 prefs::kTaskManagerWindowPlacement);
+     DictionaryValue* placement_pref = update.Get();
+     placement_pref->SetInteger("width", dialog_bounds.width());
+     placement_pref->SetInteger("height", dialog_bounds.height());
+   }
+ }
 
  private:
   void ShowDialog(bool is_background_page_mode);
   void OpenHtmlDialog();
 
   int show_count_;
 
   gfx::NativeWindow window_;
   bool is_background_page_mode_;
 
@@ skipping 59 matching lines @@
       BrowserThread::UI, FROM_HERE,
       base::Bind(&TaskManagerDialogImpl::Show, false));
 }
 
 // static
 void TaskManagerDialog::ShowBackgroundPages() {
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&TaskManagerDialogImpl::Show, true));
 }