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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.
#ifndef CHROME_BROWSER_UI_VIEWS_HTML_DIALOG_VIEW_H_
#define CHROME_BROWSER_UI_VIEWS_HTML_DIALOG_VIEW_H_
#pragma once
#include <string>
#include "base/gtest_prod_util.h"
#include "chrome/browser/ui/views/dom_view.h"
#include "chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h"
#include "chrome/browser/ui/webui/html_dialog_ui.h"
#include "content/common/notification_observer.h"
#include "content/common/notification_registrar.h"
#include "ui/gfx/size.h"
#include "views/widget/widget_delegate.h"
class Browser;
////////////////////////////////////////////////////////////////////////////////
//
// HtmlDialogView is a view used to display an HTML dialog to the user. The
// content of the dialogs is determined by the delegate
// (HtmlDialogUIDelegate), but is basically a file URL along with a
// JSON input string. The HTML is supposed to show a UI to the user and is
// expected to send back a JSON file as a return value.
//
////////////////////////////////////////////////////////////////////////////////
//
// TODO(akalin): Make HtmlDialogView contain an HtmlDialogTabContentsDelegate
// instead of inheriting from it to avoid violating the "no multiple
// inheritance" rule.
class HtmlDialogView
: public DOMView,
public HtmlDialogTabContentsDelegate,
public HtmlDialogUIDelegate,
public views::WidgetDelegate,
public NotificationObserver {
public:
HtmlDialogView(Profile* profile, HtmlDialogUIDelegate* delegate);
virtual ~HtmlDialogView();
// Initializes the contents of the dialog (the DOMView and the callbacks).
void InitDialog();
// Overridden from views::View:
virtual gfx::Size GetPreferredSize() OVERRIDE;
virtual bool AcceleratorPressed(const views::Accelerator& accelerator)
OVERRIDE;
virtual void ViewHierarchyChanged(bool is_add, View* parent, View* child)
OVERRIDE;
// Overridden from views::WidgetDelegate:
virtual bool CanResize() const OVERRIDE;
virtual bool IsModal() const OVERRIDE;
virtual std::wstring GetWindowTitle() const OVERRIDE;
virtual void WindowClosing() OVERRIDE;
virtual views::View* GetContentsView() OVERRIDE;
virtual views::View* GetInitiallyFocusedView() OVERRIDE;
virtual bool ShouldShowWindowTitle() const OVERRIDE;
virtual views::Widget* GetWidget() OVERRIDE;
virtual const views::Widget* GetWidget() const OVERRIDE;
// Overridden from HtmlDialogUIDelegate:
virtual bool IsDialogModal() const OVERRIDE;
virtual string16 GetDialogTitle() const OVERRIDE;
virtual GURL GetDialogContentURL() const OVERRIDE;
virtual void GetWebUIMessageHandlers(
std::vector<WebUIMessageHandler*>* handlers) const OVERRIDE;
virtual void GetDialogSize(gfx::Size* size) const OVERRIDE;
virtual std::string GetDialogArgs() const OVERRIDE;
virtual void OnDialogClosed(const std::string& json_retval) OVERRIDE;
virtual void OnCloseContents(TabContents* source, bool* out_close_dialog)
OVERRIDE;
virtual bool ShouldShowDialogTitle() const OVERRIDE;
virtual bool HandleContextMenu(const ContextMenuParams& params) OVERRIDE;
// Overridden from TabContentsDelegate:
virtual void MoveContents(TabContents* source, const gfx::Rect& pos) OVERRIDE;
virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event)
OVERRIDE;
virtual void CloseContents(TabContents* source) OVERRIDE;
// Overridden from NotificationObserver
virtual void Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) OVERRIDE;
protected:
// Register accelerators for this dialog.
virtual void RegisterDialogAccelerators();
private:
FRIEND_TEST_ALL_PREFIXES(HtmlDialogBrowserTest, TestStateTransition);
// A state used to ensure that we show the window only after the
// renderer painted the full page.
enum DialogState {
NONE,
INITIALIZED, // FreezeUpdates property is set to prevent WM from showing
// the window until the property is remoevd.
LOADED, // Renderer loaded the page.
PAINTED, // 1st paint event after the page is loaded.
// FreezeUpdates property is removed to tell WM to shows
// the window.
};
DialogState state_;
// This view is a delegate to the HTML content since it needs to get notified
// about when the dialog is closing. For all other actions (besides dialog
// closing) we delegate to the creator of this view, which we keep track of
// using this variable.
HtmlDialogUIDelegate* delegate_;
NotificationRegistrar notification_registrar_;
DISALLOW_COPY_AND_ASSIGN(HtmlDialogView);
};
#endif // CHROME_BROWSER_UI_VIEWS_HTML_DIALOG_VIEW_H_
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