/*

 * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com

 * Copyright (C) 2007, 2009 Holger Hans Peter Freyther

 * 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 "FrameView.h"

#include "GraphicsContext.h"

#include "GtkVersioning.h"

#include "HostWindow.h"

#include "IntRect.h"

#include "RenderObject.h"

#include <gdk/gdk.h>

#include <gtk/gtk.h>

namespace WebCore {

static GdkCursor* lastSetCursor;

Widget::Widget(PlatformWidget widget)

{

    init(widget);

}

Widget::~Widget()

{

    ASSERT(!parent());

    releasePlatformWidget();

}

void Widget::setFocus(bool focused)

{

    if (focused)

        gtk_widget_grab_focus(platformWidget() ? platformWidget() : GTK_WIDGET(root()->hostWindow()->platformPageClient()));

}

static GdkDrawable* gdkDrawable(PlatformWidget widget)

{

    return widget ? gtk_widget_get_window(widget) : 0;

}

void Widget::setCursor(const Cursor& cursor)

{

    GdkCursor* platformCursor = cursor.impl();

    // http://bugs.webkit.org/show_bug.cgi?id=16388

    // [GTK] Widget::setCursor() gets called frequently

    //

    // gdk_window_set_cursor() in certain GDK backends seems to be an

    // expensive operation, so avoid it if possible.

    if (platformCursor == lastSetCursor)

        return;

    gdk_window_set_cursor(gdkDrawable(platformWidget()) ? GDK_WINDOW(gdkDrawable(platformWidget())) : gtk_widget_get_window(GTK_WIDGET(root()->hostWindow()->platformPageClient())), platformCursor);

    lastSetCursor = platformCursor;

}

void Widget::show()

{

    setSelfVisible(true);

    if (isParentVisible() && platformWidget())

        gtk_widget_show(platformWidget());

}

void Widget::hide()

{

    setSelfVisible(false);

    if (isParentVisible() && platformWidget())

        gtk_widget_hide(platformWidget());

}

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

{

}

void Widget::setIsSelected(bool isSelected)

{

    if (!platformWidget())

        return;

    // See if the platformWidget has a webkit-widget-is-selected property

    // and set it afterwards.

    GParamSpec* spec = g_object_class_find_property(G_OBJECT_GET_CLASS(platformWidget()),

                                                    "webkit-widget-is-selected");

    if (!spec)

        return;

    g_object_set(platformWidget(), "webkit-widget-is-selected", isSelected, NULL);

}

IntRect Widget::frameRect() const

{

    return m_frame;

}

void Widget::setFrameRect(const IntRect& rect)

{

    m_frame = rect;

}

void Widget::releasePlatformWidget()

{

    if (!platformWidget())

         return;

    g_object_unref(platformWidget());

}

void Widget::retainPlatformWidget()

{

    if (!platformWidget())

         return;

    g_object_ref_sink(platformWidget());

}

}