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// 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/memory/singleton.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/webui/html_dialog_ui.h"
#include "chrome/common/url_constants.h"
#include "grit/google_chrome_strings.h"
#include "ui/base/l10n/l10n_util.h"
class TaskManagerDialogImpl : public HtmlDialogUIDelegate {
public:
TaskManagerDialogImpl();
static void Show();
static TaskManagerDialogImpl* GetInstance();
void ShowDialog();
protected:
friend struct DefaultSingletonTraits<TaskManagerDialogImpl>;
virtual ~TaskManagerDialogImpl();
void OnCloseDialog();
// Overridden from HtmlDialogUIDelegate:
virtual bool IsDialogModal() const {
return false;
}
virtual std::wstring GetDialogTitle() const {
return UTF16ToWide(l10n_util::GetStringUTF16(IDS_TASK_MANAGER_TITLE));
}
virtual GURL GetDialogContentURL() const {
std::string url_string(chrome::kChromeUITaskManagerURL);
return GURL(url_string);
}
virtual void GetWebUIMessageHandlers(
std::vector<WebUIMessageHandler*>* handlers) const {
}
virtual void GetDialogSize(gfx::Size* size) const {
size->SetSize(640, 480);
}
virtual std::string GetDialogArgs() const {
return std::string();
}
virtual void OnDialogClosed(const std::string& json_retval) {
OnCloseDialog();
}
virtual void OnCloseContents(TabContents* source, bool* out_close_dialog) {
*out_close_dialog = true;
OnCloseDialog();
}
virtual bool ShouldShowDialogTitle() const {
return false;
}
virtual bool HandleContextMenu(const ContextMenuParams& params) {
return true;
}
private:
void OpenHtmlDialog();
bool is_shown_;
DISALLOW_COPY_AND_ASSIGN(TaskManagerDialogImpl);
};
// ****************************************************
// static
TaskManagerDialogImpl* TaskManagerDialogImpl::GetInstance() {
DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::IO));
DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::FILE));
return Singleton<TaskManagerDialogImpl>::get();
}
TaskManagerDialogImpl::TaskManagerDialogImpl() : is_shown_(false) {
}
TaskManagerDialogImpl::~TaskManagerDialogImpl() {
}
void TaskManagerDialogImpl::ShowDialog() {
// TODO(yoshiki): Brings up existing UI when called with is_shown_ == TRUE
if (!is_shown_) {
is_shown_ = true;
OpenHtmlDialog();
}
}
void TaskManagerDialogImpl::OnCloseDialog() {
if (is_shown_)
is_shown_ = false;
}
void TaskManagerDialogImpl::OpenHtmlDialog() {
Browser* browser = BrowserList::GetLastActive();
browser->BrowserShowHtmlDialog(this, NULL);
}
// ****************************************************
//
// static
void TaskManagerDialog::Show() {
TaskManagerDialogImpl* dialog = TaskManagerDialogImpl::GetInstance();
dialog->ShowDialog();
}
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