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      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 "ScrollView.h"
     32 
     33 #include <gtk/gtk.h>
     34 
     35 namespace WebCore {
     36 
     37 GtkPluginWidget::GtkPluginWidget(GtkWidget* widget)
     38     : Widget(widget)
     39 {
     40     gtk_widget_hide(widget);
     41 }
     42 
     43 void GtkPluginWidget::invalidateRect(const IntRect& _rect)
     44 {
     45     /* no need to */
     46     if (GTK_WIDGET_NO_WINDOW(platformWidget()))
     47         return;
     48 
     49     GdkWindow* window = platformWidget()->window;
     50     if (!window)
     51         return;
     52 
     53     GdkRectangle rect = _rect;
     54     gdk_window_invalidate_rect(window, &rect, FALSE);
     55 }
     56 
     57 void GtkPluginWidget::frameRectsChanged()
     58 {
     59     IntRect rect = frameRect();
     60     IntPoint loc = parent()->contentsToWindow(rect.location());
     61     GtkAllocation allocation = { loc.x(), loc.y(), rect.width(), rect.height() };
     62 
     63     gtk_widget_set_size_request(platformWidget(), rect.width(), rect.height());
     64     gtk_widget_size_allocate(platformWidget(), &allocation);
     65     gtk_widget_show(platformWidget());
     66 }
     67 
     68 void GtkPluginWidget::paint(GraphicsContext* context, const IntRect& rect)
     69 {
     70     if (!context->gdkExposeEvent())
     71         return;
     72 
     73     /* only paint widgets with NO_WINDOW this way */
     74     if (!GTK_WIDGET_NO_WINDOW(platformWidget()))
     75         return;
     76 
     77     GtkWidget* widget = platformWidget();
     78     ASSERT(GTK_WIDGET_NO_WINDOW(widget));
     79 
     80     GdkEvent* event = gdk_event_new(GDK_EXPOSE);
     81     event->expose = *context->gdkExposeEvent();
     82     event->expose.area = static_cast<GdkRectangle>(rect);
     83 
     84     IntPoint loc = parent()->contentsToWindow(rect.location());
     85 
     86     event->expose.area.x = loc.x();
     87     event->expose.area.y = loc.y();
     88 
     89     event->expose.region = gdk_region_rectangle(&event->expose.area);
     90 
     91     /*
     92      * This will be unref'ed by gdk_event_free.
     93      */
     94     g_object_ref(event->expose.window);
     95 
     96     /*
     97      * If we are going to paint do the translation and GtkAllocation manipulation.
     98      */
     99     if (!gdk_region_empty(event->expose.region))
    100         gtk_widget_send_expose(widget, event);
    101 
    102     gdk_event_free(event);
    103 }
    104 
    105 }
    106