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// 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.
#ifndef CHROME_BROWSER_UI_WEBUI_CONSTRAINED_HTML_UI_H_
#define CHROME_BROWSER_UI_WEBUI_CONSTRAINED_HTML_UI_H_
#pragma once
#include "base/compiler_specific.h"
#include "content/public/browser/web_ui_controller.h"
class ConstrainedWindow;
class HtmlDialogTabContentsDelegate;
class HtmlDialogUIDelegate;
class Profile;
class RenderViewHost;
class TabContentsWrapper;
namespace base {
template<class T> class PropertyAccessor;
}
class ConstrainedHtmlUIDelegate {
public:
virtual HtmlDialogUIDelegate* GetHtmlDialogUIDelegate() = 0;
// Called when the dialog is being closed in response to a "DialogClose"
// message from WebUI.
virtual void OnDialogCloseFromWebUI() = 0;
// If called, on dialog closure, the dialog will release its WebContents
// instead of destroying it. After which point, the caller will own the
// released WebContents.
virtual void ReleaseTabContentsOnDialogClose() = 0;
// Returns the ConstrainedWindow.
virtual ConstrainedWindow* window() = 0;
// Returns the TabContentsWrapper owned by the constrained window.
virtual TabContentsWrapper* tab() = 0;
protected:
virtual ~ConstrainedHtmlUIDelegate() {}
};
// ConstrainedHtmlUI is a facility to show HTML WebUI content
// in a tab-modal constrained dialog. It is implemented as an adapter
// between an HtmlDialogUI object and a ConstrainedWindow object.
//
// Since ConstrainedWindow requires platform-specific delegate
// implementations, this class is just a factory stub.
// TODO(thestig) Refactor the platform-independent code out of the
// platform-specific implementations.
class ConstrainedHtmlUI : public content::WebUIController {
public:
explicit ConstrainedHtmlUI(content::WebUI* web_ui);
virtual ~ConstrainedHtmlUI();
// WebUIController implementation:
virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
// Create a constrained HTML dialog. The actual object that gets created
// is a ConstrainedHtmlUIDelegate, which later triggers construction of a
// ConstrainedHtmlUI object.
// |profile| is used to construct the constrained HTML dialog's WebContents.
// |delegate| controls the behavior of the dialog.
// |tab_delegate| is optional, pass one in to use a custom
// HtmlDialogTabContentsDelegate with the dialog, or NULL to
// use the default one. The dialog takes ownership of
// |tab_delegate|.
// |overshadowed| is the tab being overshadowed by the dialog.
static ConstrainedHtmlUIDelegate* CreateConstrainedHtmlDialog(
Profile* profile,
HtmlDialogUIDelegate* delegate,
HtmlDialogTabContentsDelegate* tab_delegate,
TabContentsWrapper* overshadowed);
// Returns a property accessor that can be used to set the
// ConstrainedHtmlUIDelegate property on a WebContents.
static base::PropertyAccessor<ConstrainedHtmlUIDelegate*>&
GetPropertyAccessor();
protected:
// Returns the WebContents' PropertyBag's ConstrainedHtmlUIDelegate.
// Returns NULL if that property is not set.
ConstrainedHtmlUIDelegate* GetConstrainedDelegate();
private:
// JS Message Handler
void OnDialogCloseMessage(const base::ListValue* args);
DISALLOW_COPY_AND_ASSIGN(ConstrainedHtmlUI);
};
#endif // CHROME_BROWSER_UI_WEBUI_CONSTRAINED_HTML_UI_H_
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