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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 UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_
#define UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_
#include "base/compiler_specific.h"
#include "content/public/browser/web_ui_controller.h"
#include "ui/web_dialogs/web_dialogs_export.h"
class ConstrainedWindow;
class Profile;
class TabContents;
namespace content {
class RenderViewHost;
class WebContents;
}
namespace ui {
class WebDialogDelegate;
class WebDialogWebContentsDelegate;
class WEB_DIALOGS_EXPORT ConstrainedWebDialogDelegate {
public:
virtual const WebDialogDelegate* GetWebDialogDelegate() const = 0;
virtual WebDialogDelegate* GetWebDialogDelegate() = 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.
// TODO: fix this function name and the one below to conform to the style
// guide (i.e. GetWindow, GetTab).
virtual ConstrainedWindow* window() = 0;
// Returns the TabContents owned by the constrained window.
virtual TabContents* tab() = 0;
protected:
virtual ~ConstrainedWebDialogDelegate() {}
};
// ConstrainedWebDialogUI is a facility to show HTML WebUI content
// in a tab-modal constrained dialog. It is implemented as an adapter
// between an WebDialogUI 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 WEB_DIALOGS_EXPORT ConstrainedWebDialogUI
: public content::WebUIController {
public:
explicit ConstrainedWebDialogUI(content::WebUI* web_ui);
virtual ~ConstrainedWebDialogUI();
// WebUIController implementation:
virtual void RenderViewCreated(
content::RenderViewHost* render_view_host) OVERRIDE;
// Sets the delegate on the WebContents.
static void SetConstrainedDelegate(content::WebContents* web_contents,
ConstrainedWebDialogDelegate* delegate);
protected:
// Returns the ConstrainedWebDialogDelegate saved with the WebContents.
// Returns NULL if no such delegate is set.
ConstrainedWebDialogDelegate* GetConstrainedDelegate();
private:
// JS Message Handler
void OnDialogCloseMessage(const base::ListValue* args);
DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogUI);
};
// Create a constrained HTML dialog. The actual object that gets created
// is a ConstrainedWebDialogDelegate, which later triggers construction of a
// ConstrainedWebDialogUI 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
// WebDialogWebContentsDelegate 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.
ConstrainedWebDialogDelegate* CreateConstrainedWebDialog(
Profile* profile,
WebDialogDelegate* delegate,
WebDialogWebContentsDelegate* tab_delegate,
TabContents* overshadowed);
} // namespace ui
#endif // UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_
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