/*

 * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#include "config.h"

#include "Widget.h"

#include "Cursor.h"

#include "Document.h"

#include "Element.h"

#include "GraphicsContext.h"

#include "FrameWin.h"

#include "IntRect.h"

#include "FrameView.h"

#include "WidgetClient.h"

#include <winsock2.h>

#include <windows.h>

namespace WebCore {

class WidgetPrivate

{

public:

    WidgetClient* client;

    ScrollView* parent;

    HWND containingWindow;

    IntRect frameRect;

    bool enabled;

    Widget* capturingChild;

    bool suppressInvalidation;

};

Widget::Widget()

    : data(new WidgetPrivate)

{

    data->client = 0;

    data->parent = 0;

    data->containingWindow = 0;

    data->enabled = true;

    data->capturingChild = 0;

    data->suppressInvalidation = false;

}

Widget::~Widget() 

{

    ASSERT(!parent());

    delete data;

}

void Widget::setContainingWindow(HWND containingWindow)

{

    data->containingWindow = containingWindow;

}

HWND Widget::containingWindow() const

{

    return data->containingWindow;

}

void Widget::setClient(WidgetClient* c)

{

    data->client = c;

}

WidgetClient* Widget::client() const

{

    return data->client;

}

IntRect Widget::frameGeometry() const

{

    return data->frameRect;

}

void Widget::setFrameGeometry(const IntRect &rect)

{

    data->frameRect = rect;

}

void Widget::setParent(ScrollView* v)

{

    data->parent = v;

}

ScrollView* Widget::parent() const

{

    return data->parent;

}

void Widget::removeFromParent()

{

    if (parent())

        parent()->removeChild(this);

}

void Widget::show()

{

}

void Widget::hide()

{

}

HCURSOR lastSetCursor = 0;

bool ignoreNextSetCursor = false;

void Widget::setCursor(const Cursor& cursor)

{

    // This is set by PluginViewWin so it can ignore set setCursor call made by

    // EventHandler.cpp.

    if (ignoreNextSetCursor) {

        ignoreNextSetCursor = false;

        return;

    }

    if (HCURSOR c = cursor.impl()->nativeCursor()) {

        lastSetCursor = c;

        SetCursor(c);

    }

}

IntPoint Widget::convertToContainingWindow(const IntPoint& point) const

{

    IntPoint windowPoint = point;

    for (const Widget *parentWidget = parent(), *childWidget = this;

         parentWidget;

         childWidget = parentWidget, parentWidget = parentWidget->parent())

        windowPoint = parentWidget->convertChildToSelf(childWidget, windowPoint);

    return windowPoint;

}

IntPoint Widget::convertFromContainingWindow(const IntPoint& point) const

{

    IntPoint widgetPoint = point;

    for (const Widget *parentWidget = parent(), *childWidget = this;

         parentWidget;

         childWidget = parentWidget, parentWidget = parentWidget->parent())

        widgetPoint = parentWidget->convertSelfToChild(childWidget, widgetPoint);

    return widgetPoint;

}

IntRect Widget::convertToContainingWindow(const IntRect& rect) const

{

    IntRect convertedRect = rect;

    convertedRect.setLocation(convertToContainingWindow(convertedRect.location()));

    return convertedRect;

}

IntPoint Widget::convertChildToSelf(const Widget* child, const IntPoint& point) const

{

    return IntPoint(point.x() + child->x(), point.y() + child->y());

}

IntPoint Widget::convertSelfToChild(const Widget* child, const IntPoint& point) const

{

    return IntPoint(point.x() - child->x(), point.y() - child->y());

}

void Widget::paint(GraphicsContext*, const IntRect&)

{

}

bool Widget::isEnabled() const

{

    return data->enabled;

}

void Widget::setEnabled(bool e)

{

    if (e != data->enabled) {

        data->enabled = e;

        invalidate();

    }

}

bool Widget::suppressInvalidation() const

{

    return data->suppressInvalidation;

}

void Widget::setSuppressInvalidation(bool suppress)

{

    data->suppressInvalidation = suppress;

}

void Widget::invalidate()

{

    invalidateRect(IntRect(0, 0, width(), height()));

}

void Widget::invalidateRect(const IntRect& r)

{

    if (data->suppressInvalidation)

        return;

    if (!parent()) {

        RECT rect = r;

        ::InvalidateRect(containingWindow(), &rect, false);

        if (isFrameView())

            static_cast<FrameView*>(this)->addToDirtyRegion(r);

        return;

    }

    // Get the root widget.

    ScrollView* outermostView = parent();

    while (outermostView && outermostView->parent())

        outermostView = outermostView->parent();

    if (!outermostView)

        return;

    IntRect windowRect = convertToContainingWindow(r);

    // Get our clip rect and intersect with it to ensure we don't invalidate too much.

    IntRect clipRect = windowClipRect();

    windowRect.intersect(clipRect);

    RECT rect = windowRect;

    ::InvalidateRect(containingWindow(), &rect, false);

    outermostView->addToDirtyRegion(windowRect);

}

void Widget::setFocus()

{

}

} // namespace WebCore