1 /*

     2  * Copyright (C) 2009 Holger Hans Peter Freyther

     3  * All rights reserved.

     4  *

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

     6  * modification, are permitted provided that the following conditions

     7  * are met:

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

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

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

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

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

    13  *

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

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

    16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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

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

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

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

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

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

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

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

    25  */

    26 

    27 #include "config.h"

    28 #include "GtkPluginWidget.h"

    29 

    30 #include "GraphicsContext.h"

    31 #include "GtkVersioning.h"

    32 #include "ScrollView.h"

    33 

    34 #include <gtk/gtk.h>

    35 

    36 namespace WebCore {

    37 

    38 GtkPluginWidget::GtkPluginWidget(GtkWidget* widget)

    39     : Widget(widget)

    40 {

    41     gtk_widget_hide(widget);

    42 }

    43 

    44 void GtkPluginWidget::invalidateRect(const IntRect& _rect)

    45 {

    46     /* no need to */

    47     if (!gtk_widget_get_has_window(platformWidget()))

    48         return;

    49 

    50     GdkWindow* window = gtk_widget_get_window(platformWidget());

    51     if (!window)

    52         return;

    53 

    54     GdkRectangle rect = _rect;

    55     gdk_window_invalidate_rect(window, &rect, FALSE);

    56 }

    57 

    58 void GtkPluginWidget::frameRectsChanged()

    59 {

    60     IntRect rect = frameRect();

    61     IntPoint loc = parent()->contentsToWindow(rect.location());

    62     GtkAllocation allocation = { loc.x(), loc.y(), rect.width(), rect.height() };

    63 

    64     gtk_widget_set_size_request(platformWidget(), rect.width(), rect.height());

    65     gtk_widget_size_allocate(platformWidget(), &allocation);

    66     gtk_widget_show(platformWidget());

    67 }

    68 

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

    70 {

    71     if (!context->gdkExposeEvent())

    72         return;

    73 

    74     /* only paint widgets with no window this way */

    75     if (gtk_widget_get_has_window(platformWidget()))

    76         return;

    77 

    78     GtkWidget* widget = platformWidget();

    79     ASSERT(!gtk_widget_get_has_window(widget));

    80 

    81     GdkEvent* event = gdk_event_new(GDK_EXPOSE);

    82     event->expose = *context->gdkExposeEvent();

    83     event->expose.area = static_cast<GdkRectangle>(rect);

    84 

    85     IntPoint loc = parent()->contentsToWindow(rect.location());

    86 

    87     event->expose.area.x = loc.x();

    88     event->expose.area.y = loc.y();

    89 

    90 #ifdef GTK_API_VERSION_2

    91     event->expose.region = gdk_region_rectangle(&event->expose.area);

    92 #else

    93     event->expose.region = cairo_region_create_rectangle(&event->expose.area);

    94 #endif

    95 

    96     /*

    97      * This will be unref'ed by gdk_event_free.

    98      */

    99     g_object_ref(event->expose.window);

   100 

   101     /*

   102      * If we are going to paint do the translation and GtkAllocation manipulation.

   103      */

   104 #ifdef GTK_API_VERSION_2

   105     if (!gdk_region_empty(event->expose.region))

   106 #else

   107     if (!cairo_region_is_empty(event->expose.region))

   108 #endif

   109         gtk_widget_send_expose(widget, event);

   110 

   111     gdk_event_free(event);

   112 }

   113 

   114 }