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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 WidgetClientWin_H__
#define WidgetClientWin_H__
#include "WidgetClient.h"
class SkBitmap;
namespace WebCore {
class Cursor;
class IntRect;
class Range;
// Generic interface for features needed by the Widget.
class WidgetClientWin : public WidgetClient {
public:
// Returns the containing window for the Widget.
virtual HWND containingWindow() = 0;
// Invalidate a region of the widget's containing window.
virtual void invalidateRect(const IntRect& damagedRect) = 0;
// Scroll the region of the widget's containing window within the given
// clipRect by the specified dx and dy.
virtual void scrollRect(int dx, int dy, const IntRect& clipRect) = 0;
// Notifies the client of a new popup widget. The client should place
// and size the widget with the given bounds, relative to the screen.
virtual void popupOpened(Widget* widget, const IntRect& bounds) = 0;
// Notifies the client that the given popup widget has closed.
virtual void popupClosed(Widget* widget) = 0;
// Indicates that a new cursor should be shown.
virtual void setCursor(const Cursor& cursor) = 0;
// Indicates the widget thinks it has focus. This should give focus to the
// window hosting the widget.
virtual void setFocus() = 0;
// This function is called to retrieve a resource bitmap from the
// renderer that was cached as a result of the renderer receiving a
// ViewMsg_Preload_Bitmap message from the browser.
virtual const SkBitmap* getPreloadedResourceBitmap(int resource_id) = 0;
// Notification that the given widget's scroll position has changed. This
// function is called AFTER the position has been updated.
virtual void onScrollPositionChanged(Widget* widget) = 0;
// Retrieves the tick-marks for a given frame.
virtual const WTF::Vector<RefPtr<WebCore::Range> >* getTickmarks(
WebCore::Frame* frame) = 0;
// Retrieves the index of the active tickmark for a given frame. If the
// frame does not have an active tickmark (for example if the active
// tickmark resides in another frame) this function returns kNoTickmark.
static const size_t kNoTickmark = -1;
virtual size_t getActiveTickmarkIndex(WebCore::Frame* frame) = 0;
};
} // namespace WebCore
#endif // WidgetClientWin_H__
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