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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_TOOLS_TEST_SHELL_WEBWIDGET_HOST_H__
#define WEBKIT_TOOLS_TEST_SHELL_WEBWIDGET_HOST_H__
#include <windows.h>
#include "base/gfx/rect.h"
#include "base/scoped_ptr.h"
class WebWidget;
class WebWidgetDelegate;
namespace gfx {
class PlatformCanvasWin;
class Size;
}
// This class is a simple HWND-based host for a WebWidget
class WebWidgetHost {
public:
// The new instance is deleted once the associated HWND is destroyed. The
// newly created window should be resized after it is created, using the
// MoveWindow (or equivalent) function.
static WebWidgetHost* Create(HWND parent_window, WebWidgetDelegate* delegate);
static WebWidgetHost* FromWindow(HWND hwnd);
HWND window_handle() const { return hwnd_; }
WebWidget* webwidget() const { return webwidget_; }
void DidInvalidateRect(const gfx::Rect& rect);
void DidScrollRect(int dx, int dy, const gfx::Rect& clip_rect);
void SetCursor(HCURSOR cursor);
void DiscardBackingStore();
protected:
WebWidgetHost();
~WebWidgetHost();
// Per-class wndproc. Returns true if the event should be swallowed.
virtual bool WndProc(UINT message, WPARAM wparam, LPARAM lparam);
void Paint();
void Resize(LPARAM lparam);
void MouseEvent(UINT message, WPARAM wparam, LPARAM lparam);
void WheelEvent(WPARAM wparam, LPARAM lparam);
void KeyEvent(UINT message, WPARAM wparam, LPARAM lparam);
void CaptureLostEvent();
void SetFocus(bool enable);
void TrackMouseLeave(bool enable);
void ResetScrollRect();
void PaintRect(const gfx::Rect& rect);
void set_painting(bool value) {
#ifndef NDEBUG
painting_ = value;
#endif
}
static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
HWND hwnd_;
WebWidget* webwidget_;
scoped_ptr<gfx::PlatformCanvasWin> canvas_;
// specifies the portion of the webwidget that needs painting
gfx::Rect paint_rect_;
// specifies the portion of the webwidget that needs scrolling
gfx::Rect scroll_rect_;
int scroll_dx_;
int scroll_dy_;
bool track_mouse_leave_;
#ifndef NDEBUG
bool painting_;
#endif
};
#endif // WEBKIT_TOOLS_TEST_SHELL_WEBWIDGET_HOST_H__
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