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// Copyright (c) 2006-2008 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 WEBKIT_GLUE_WEBWIDGET_DELEGATE_H__
#define WEBKIT_GLUE_WEBWIDGET_DELEGATE_H__
#include "base/gfx/native_widget_types.h"
#include "webkit/glue/window_open_disposition.h"
namespace gfx {
class Point;
class Rect;
}
class WebWidget;
class WebCursor;
struct WebPluginGeometry;
class WebWidgetDelegate {
public:
// Returns the view in which the WebWidget is embedded.
virtual gfx::NativeViewId GetContainingView(WebWidget* webwidget) = 0;
// Called when a region of the WebWidget needs to be re-painted.
virtual void DidInvalidateRect(WebWidget* webwidget, const gfx::Rect& rect) = 0;
// Called when a region of the WebWidget, given by clip_rect, should be
// scrolled by the specified dx and dy amounts.
virtual void DidScrollRect(WebWidget* webwidget, int dx, int dy,
const gfx::Rect& clip_rect) = 0;
// This method is called to instruct the window containing the WebWidget to
// show itself as the topmost window. This method is only used after a
// successful call to CreateWebWidget. |disposition| indicates how this new
// window should be displayed, but generally only means something for WebViews.
virtual void Show(WebWidget* webwidget, WindowOpenDisposition disposition) = 0;
// This method is called to instruct the window containing the WebWidget to
// close. Note: This method should just be the trigger that causes the
// WebWidget to eventually close. It should not actually be destroyed until
// after this call returns.
virtual void CloseWidgetSoon(WebWidget* webwidget) = 0;
// This method is called to focus the window containing the WebWidget so
// that it receives keyboard events.
virtual void Focus(WebWidget* webwidget) = 0;
// This method is called to unfocus the window containing the WebWidget so that
// it no longer receives keyboard events.
virtual void Blur(WebWidget* webwidget) = 0;
virtual void SetCursor(WebWidget* webwidget,
const WebCursor& cursor) = 0;
// Returns the rectangle of the WebWidget in screen coordinates.
virtual void GetWindowRect(WebWidget* webwidget, gfx::Rect* rect) = 0;
// This method is called to re-position the WebWidget on the screen. The given
// rect is in screen coordinates. The implementation may choose to ignore
// this call or modify the given rect. This method may be called before Show
// has been called.
// TODO(darin): this is more of a request; does this need to take effect
// synchronously?
virtual void SetWindowRect(WebWidget* webwidget, const gfx::Rect& rect) = 0;
// Returns the rectangle of the window in which this WebWidget is embeded.
virtual void GetRootWindowRect(WebWidget* webwidget, gfx::Rect* rect) = 0;
// Returns the resizer rectangle of the window this WebWidget is in. This
// is used on Mac to determine if a scrollbar is over the in-window resize
// area at the bottom right corner.
virtual void GetRootWindowResizerRect(WebWidget* webwidget, gfx::Rect* rect) = 0;
// Keeps track of the necessary window move for a plugin window that resulted
// from a scroll operation. That way, all plugin windows can be moved at the
// same time as each other and the page.
virtual void DidMove(WebWidget* webwidget, const WebPluginGeometry& move) = 0;
// Suppress input events to other windows, and do not return until the widget
// is closed. This is used to support |window.showModalDialog|.
virtual void RunModal(WebWidget* webwidget) = 0;
// Owners depend on the delegates living as long as they do, so we ref them.
virtual void AddRef() = 0;
virtual void Release() = 0;
// Returns true if the widget is in a background tab.
virtual bool IsHidden() = 0;
WebWidgetDelegate() { }
virtual ~WebWidgetDelegate() { }
private:
DISALLOW_EVIL_CONSTRUCTORS(WebWidgetDelegate);
};
#endif // #ifndef WEBKIT_GLUE_WEBWIDGET_DELEGATE_H__
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