[SCM] WebKit Debian packaging branch, debian/experimental, updated. upstream/1.3.3-9427-gc2be6fc

commit-queue at webkit.org commit-queue at webkit.org
Wed Dec 22 14:25:21 UTC 2010


The following commit has been merged in the debian/experimental branch:
commit efa067b5facadefe0d1b7056d33a429c40b2e9c0
Author: commit-queue at webkit.org <commit-queue at webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date:   Fri Oct 8 07:53:36 2010 +0000

    2010-10-08  Carlos Garcia Campos  <cgarcia at igalia.com>
    
            Reviewed by Xan Lopez.
    
            [GTK] Port GTK+ theming code to GTK+ 3.x APIs
            https://bugs.webkit.org/show_bug.cgi?id=47398
    
            Create a new gtk3drawing file for the widget drawing primitives in
            WebKit, using the GTK+ 3.x APIs. It's very similar to the GTK+ 2.x
            code at the moment, but we'll evolve it incrementally from here.
    
            * GNUmakefile.am:
            * platform/gtk/RenderThemeGtk.cpp:
            (WebCore::RenderThemeGtk::partsForDrawable):
            (WebCore::RenderThemeGtk::paintMozillaGtkWidget):
            * platform/gtk/gtk2drawing.c:
            (TSOffsetStyleGCArray):
            (TSOffsetStyleGCs):
            (moz_gtk_button_paint):
            (moz_gtk_scrollbar_thumb_paint):
            (moz_gtk_entry_paint):
            (moz_gtk_combo_box_paint):
            (moz_gtk_get_widget_border):
            * platform/gtk/gtk3drawing.c: Added.
            * platform/gtk/gtkdrawing.h:
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@69381 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/WebCore/ChangeLog b/WebCore/ChangeLog
index b92ad52..0783b13 100644
--- a/WebCore/ChangeLog
+++ b/WebCore/ChangeLog
@@ -1,3 +1,29 @@
+2010-10-08  Carlos Garcia Campos  <cgarcia at igalia.com>
+
+        Reviewed by Xan Lopez.
+
+        [GTK] Port GTK+ theming code to GTK+ 3.x APIs
+        https://bugs.webkit.org/show_bug.cgi?id=47398
+
+        Create a new gtk3drawing file for the widget drawing primitives in
+        WebKit, using the GTK+ 3.x APIs. It's very similar to the GTK+ 2.x
+        code at the moment, but we'll evolve it incrementally from here.
+
+        * GNUmakefile.am:
+        * platform/gtk/RenderThemeGtk.cpp:
+        (WebCore::RenderThemeGtk::partsForDrawable):
+        (WebCore::RenderThemeGtk::paintMozillaGtkWidget):
+        * platform/gtk/gtk2drawing.c:
+        (TSOffsetStyleGCArray):
+        (TSOffsetStyleGCs):
+        (moz_gtk_button_paint):
+        (moz_gtk_scrollbar_thumb_paint):
+        (moz_gtk_entry_paint):
+        (moz_gtk_combo_box_paint):
+        (moz_gtk_get_widget_border):
+        * platform/gtk/gtk3drawing.c: Added.
+        * platform/gtk/gtkdrawing.h:
+
 2010-10-07  Daniel Cheng  <dcheng at chromium.org>
 
         Reviewed by Kent Tamura.
diff --git a/WebCore/GNUmakefile.am b/WebCore/GNUmakefile.am
index 72ab647..4a2547b 100644
--- a/WebCore/GNUmakefile.am
+++ b/WebCore/GNUmakefile.am
@@ -3518,6 +3518,7 @@ webcoregtk_sources += \
 	WebCore/platform/gtk/GRefPtrGtk.cpp \
 	WebCore/platform/gtk/GRefPtrGtk.h \
 	WebCore/platform/gtk/gtk2drawing.c \
+	WebCore/platform/gtk/gtk3drawing.c \
 	WebCore/platform/gtk/gtkdrawing.h \
 	WebCore/platform/gtk/GtkPluginWidget.cpp \
 	WebCore/platform/gtk/GtkPluginWidget.h \
diff --git a/WebCore/platform/gtk/RenderThemeGtk.cpp b/WebCore/platform/gtk/RenderThemeGtk.cpp
index 9329179..887cbea 100644
--- a/WebCore/platform/gtk/RenderThemeGtk.cpp
+++ b/WebCore/platform/gtk/RenderThemeGtk.cpp
@@ -192,6 +192,7 @@ RenderThemeGtk::~RenderThemeGtk()
 
 GtkThemeParts* RenderThemeGtk::partsForDrawable(GdkDrawable* drawable) const
 {
+#ifdef GTK_API_VERSION_2
     // A null drawable represents the default screen colormap.
     GdkColormap* colormap = 0;
     if (!drawable)
@@ -205,6 +206,10 @@ GtkThemeParts* RenderThemeGtk::partsForDrawable(GdkDrawable* drawable) const
         parts->colormap = colormap;
         g_hash_table_insert(m_partsTable.get(), colormap, parts);
     }
+#else
+    // For GTK+ 3.0 we no longer have to worry about maintaining a set of widgets per-colormap.
+    static GtkThemeParts* parts = g_slice_new0(GtkThemeParts);
+#endif // GTK_API_VERSION_2
 
     return parts;
 }
@@ -284,6 +289,7 @@ static void adjustMozillaStyle(const RenderThemeGtk* theme, RenderStyle* style,
     style->setPaddingBottom(Length(ypadding + bottom, Fixed));
 }
 
+#ifdef GTK_API_VERSION_2
 bool RenderThemeGtk::paintMozillaGtkWidget(GtkThemeWidgetType type, GraphicsContext* context, const IntRect& rect, GtkWidgetState* widgetState, int flags, GtkTextDirection textDirection)
 {
     // Painting is disabled so just claim to have succeeded
@@ -333,6 +339,18 @@ bool RenderThemeGtk::paintMozillaGtkWidget(GtkThemeWidgetType type, GraphicsCont
 
     return !success;
 }
+#else
+bool RenderThemeGtk::paintMozillaGtkWidget(GtkThemeWidgetType type, GraphicsContext* context, const IntRect& rect, GtkWidgetState* widgetState, int flags, GtkTextDirection textDirection)
+{
+    // Painting is disabled so just claim to have succeeded
+    if (context->paintingDisabled())
+        return false;
+
+    // false == success, because of awesome.
+    GdkRectangle paintRect = rect;
+    return moz_gtk_widget_paint(type, context->platformContext(), &paintRect, widgetState, flags, textDirection) != MOZ_GTK_SUCCESS;
+}
+#endif
 
 bool RenderThemeGtk::paintRenderObject(GtkThemeWidgetType type, RenderObject* renderObject, GraphicsContext* context, const IntRect& rect, int flags)
 {
diff --git a/WebCore/platform/gtk/gtk2drawing.c b/WebCore/platform/gtk/gtk2drawing.c
index 246eeb5..941be58 100644
--- a/WebCore/platform/gtk/gtk2drawing.c
+++ b/WebCore/platform/gtk/gtk2drawing.c
@@ -44,6 +44,8 @@
  * Adapted from the gtkdrawing.c, and gtk+2.0 source.
  */
 
+#ifdef GTK_API_VERSION_2
+
 #include <gdk/gdkprivate.h>
 #include "gtkdrawing.h"
 #include "GtkVersioning.h"
@@ -340,7 +342,6 @@ ConvertGtkState(GtkWidgetState* state)
         return GTK_STATE_NORMAL;
 }
 
-#ifdef GTK_API_VERSION_2
 static gint
 TSOffsetStyleGCArray(GdkGC** gcs, gint xorigin, gint yorigin)
 {
@@ -350,12 +351,10 @@ TSOffsetStyleGCArray(GdkGC** gcs, gint xorigin, gint yorigin)
         gdk_gc_set_ts_origin(gcs[i], xorigin, yorigin);
     return MOZ_GTK_SUCCESS;
 }
-#endif
 
 static gint
 TSOffsetStyleGCs(GtkStyle* style, gint xorigin, gint yorigin)
 {
-#ifdef GTK_API_VERSION_2
     TSOffsetStyleGCArray(style->fg_gc, xorigin, yorigin);
     TSOffsetStyleGCArray(style->bg_gc, xorigin, yorigin);
     TSOffsetStyleGCArray(style->light_gc, xorigin, yorigin);
@@ -365,7 +364,6 @@ TSOffsetStyleGCs(GtkStyle* style, gint xorigin, gint yorigin)
     TSOffsetStyleGCArray(style->base_gc, xorigin, yorigin);
     gdk_gc_set_ts_origin(style->black_gc, xorigin, yorigin);
     gdk_gc_set_ts_origin(style->white_gc, xorigin, yorigin);
-#endif
     return MOZ_GTK_SUCCESS;
 }
 
@@ -394,19 +392,15 @@ moz_gtk_button_paint(GdkDrawable* drawable, GdkRectangle* rect,
     gtk_widget_set_state(widget, button_state);
     gtk_widget_set_direction(widget, direction);
 
-#ifdef GTK_API_VERSION_2
     if (state->isDefault)
         GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_DEFAULT);
-#endif
 
     gtk_button_set_relief(GTK_BUTTON(widget), relief);
 
     /* Some theme engines love to cause us pain in that gtk_paint_focus is a
        no-op on buttons and button-like widgets. They only listen to this flag. */
-#ifdef GTK_API_VERSION_2
     if (state->focused && !state->disabled)
         GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_FOCUS);
-#endif
 
     if (!interior_focus && state->focused) {
         x += focus_width + focus_pad;
@@ -453,10 +447,8 @@ moz_gtk_button_paint(GdkDrawable* drawable, GdkRectangle* rect,
                         widget, "button", x, y, width, height);
     }
 
-#ifdef GTK_API_VERSION_2
     GTK_WIDGET_UNSET_FLAGS(widget, GTK_HAS_DEFAULT);
     GTK_WIDGET_UNSET_FLAGS(widget, GTK_HAS_FOCUS);
-#endif
     return MOZ_GTK_SUCCESS;
 }
 
@@ -861,9 +853,7 @@ moz_gtk_scrollbar_thumb_paint(GtkThemeWidgetType widget,
     GtkStyle* style;
     GtkScrollbar *scrollbar;
     GtkAdjustment *adj;
-#ifdef GTK_API_VERSION_2
     gboolean activate_slider;
-#endif
 
     ensure_scrollbar_widget();
 
@@ -915,7 +905,6 @@ moz_gtk_scrollbar_thumb_paint(GtkThemeWidgetType widget,
 
     style = gtk_widget_get_style(GTK_WIDGET(scrollbar));
     
-#ifdef GTK_API_VERSION_2
     gtk_widget_style_get(GTK_WIDGET(scrollbar), "activate-slider",
                          &activate_slider, NULL);
     
@@ -923,7 +912,6 @@ moz_gtk_scrollbar_thumb_paint(GtkThemeWidgetType widget,
         shadow_type = GTK_SHADOW_IN;
         state_type = GTK_STATE_ACTIVE;
     }
-#endif
 
     TSOffsetStyleGCs(style, rect->x, rect->y);
 
@@ -1056,17 +1044,8 @@ moz_gtk_entry_paint(GdkDrawable* drawable, GdkRectangle* rect,
     if (theme_honors_transparency) {
         g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
     } else {
-#ifndef GTK_API_VERSION_2
-        cairo_t* cr = gdk_cairo_create(drawable);
-        gdk_cairo_set_source_color(cr, (const GdkColor*)&style->base[bg_state]);
-        cairo_pattern_set_extend (cairo_get_source(cr), CAIRO_EXTEND_REPEAT);
-        gdk_cairo_rectangle(cr, cliprect);
-        cairo_fill(cr);
-        cairo_destroy(cr);
-#else
         gdk_draw_rectangle(drawable, style->base_gc[bg_state], TRUE,
                            cliprect->x, cliprect->y, cliprect->width, cliprect->height);
-#endif
         g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(FALSE));
     }
 
@@ -1093,9 +1072,7 @@ moz_gtk_entry_paint(GdkDrawable* drawable, GdkRectangle* rect,
     if (state->focused && !state->disabled) {
         /* This will get us the lit borders that focused textboxes enjoy on
          * some themes. */
-#ifdef GTK_API_VERSION_2
         GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_FOCUS);
-#endif
 
         if (!interior_focus) {
             /* Indent the border a little bit if we have exterior focus 
@@ -1119,9 +1096,7 @@ moz_gtk_entry_paint(GdkDrawable* drawable, GdkRectangle* rect,
 
         /* Now unset the focus flag. We don't want other entries to look
          * like they're focused too! */
-#ifdef GTK_API_VERSION_2
         GTK_WIDGET_UNSET_FLAGS(widget, GTK_HAS_FOCUS);
-#endif
     }
 
     return MOZ_GTK_SUCCESS;
@@ -1151,11 +1126,7 @@ moz_gtk_combo_box_paint(GdkDrawable* drawable, GdkRectangle* rect,
                                 rect, &arrow_rect, direction, ishtml);
     /* Now arrow_rect contains the inner rect ; we want to correct the width
      * to what the arrow needs (see gtk_combo_box_size_allocate) */
-#ifdef GTK_API_VERSION_2
     gtk_widget_size_request(gParts->comboBoxArrowWidget, &arrow_req);
-#else
-    gtk_size_request_get_size(GTK_SIZE_REQUEST(gParts->comboBoxArrowWidget), &arrow_req, NULL);
-#endif
     if (direction == GTK_TEXT_DIR_LTR)
         arrow_rect.x += arrow_rect.width - arrow_req.width;
     arrow_rect.width = arrow_req.width;
@@ -1331,11 +1302,7 @@ moz_gtk_get_widget_border(GtkThemeWidgetType widget, gint* left, gint* top,
                         XTHICKNESS(style);
             }
 
-#ifdef GTK_API_VERSION_2
             gtk_widget_size_request(gParts->comboBoxArrowWidget, &arrow_req);
-#else
-            gtk_size_request_get_size(GTK_SIZE_REQUEST(gParts->comboBoxArrowWidget), &arrow_req, NULL);
-#endif
             if (direction == GTK_TEXT_DIR_RTL)
                 *left += separator_width + arrow_req.width;
             else
@@ -1532,3 +1499,5 @@ GtkWidget* moz_gtk_get_progress_widget()
     ensure_progress_widget();
     return gParts->progresWidget;
 }
+
+#endif // GTK_API_VERSION_2
diff --git a/WebCore/platform/gtk/gtk3drawing.c b/WebCore/platform/gtk/gtk3drawing.c
new file mode 100644
index 0000000..dda110d
--- /dev/null
+++ b/WebCore/platform/gtk/gtk3drawing.c
@@ -0,0 +1,1416 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Brian Ryner <bryner at brianryner.com>  (Original Author)
+ *  Pierre Chanial <p_ch at verizon.net>
+ *  Michael Ventnor <m.ventnor at gmail.com>
+ *  Alp Toker <alp at nuanti.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * This file contains painting functions for each of the gtk2 widgets.
+ * Adapted from the gtkdrawing.c, and gtk+2.0 source.
+ */
+
+#ifndef GTK_API_VERSION_2
+
+#include <gdk/gdkprivate.h>
+#include "gtkdrawing.h"
+#include "GtkVersioning.h"
+#include <math.h>
+#include <string.h>
+
+#define XTHICKNESS(style) (style->xthickness)
+#define YTHICKNESS(style) (style->ythickness)
+
+static GtkThemeParts *gParts = NULL;
+static style_prop_t style_prop_func;
+static gboolean have_arrow_scaling;
+static gboolean is_initialized;
+
+void
+moz_gtk_use_theme_parts(GtkThemeParts* parts)
+{
+    gParts = parts;
+}
+
+/* Because we have such an unconventional way of drawing widgets, signal to the GTK theme engine
+   that they are drawing for Mozilla instead of a conventional GTK app so they can do any specific
+   things they may want to do. */
+static void
+moz_gtk_set_widget_name(GtkWidget* widget)
+{
+    gtk_widget_set_name(widget, "MozillaGtkWidget");
+}
+
+gint
+moz_gtk_enable_style_props(style_prop_t styleGetProp)
+{
+    style_prop_func = styleGetProp;
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_window_widget()
+{
+    if (!gParts->protoWindow) {
+        gParts->protoWindow = gtk_window_new(GTK_WINDOW_POPUP);
+        gtk_widget_realize(gParts->protoWindow);
+        moz_gtk_set_widget_name(gParts->protoWindow);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+setup_widget_prototype(GtkWidget* widget)
+{
+    ensure_window_widget();
+    if (!gParts->protoLayout) {
+        gParts->protoLayout = gtk_fixed_new();
+        gtk_container_add(GTK_CONTAINER(gParts->protoWindow), gParts->protoLayout);
+    }
+
+    gtk_container_add(GTK_CONTAINER(gParts->protoLayout), widget);
+    gtk_widget_realize(widget);
+    g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_button_widget()
+{
+    if (!gParts->buttonWidget) {
+        gParts->buttonWidget = gtk_button_new_with_label("M");
+        setup_widget_prototype(gParts->buttonWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_toggle_button_widget()
+{
+    if (!gParts->toggleButtonWidget) {
+        gParts->toggleButtonWidget = gtk_toggle_button_new();
+        setup_widget_prototype(gParts->toggleButtonWidget);
+        /* toggle button must be set active to get the right style on hover. */
+        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(gParts->toggleButtonWidget), TRUE);
+  }
+  return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_button_arrow_widget()
+{
+    if (!gParts->buttonArrowWidget) {
+        ensure_toggle_button_widget();
+
+        gParts->buttonArrowWidget = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
+        gtk_container_add(GTK_CONTAINER(gParts->toggleButtonWidget), gParts->buttonArrowWidget);
+        gtk_widget_realize(gParts->buttonArrowWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_checkbox_widget()
+{
+    if (!gParts->checkboxWidget) {
+        gParts->checkboxWidget = gtk_check_button_new_with_label("M");
+        setup_widget_prototype(gParts->checkboxWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_radiobutton_widget()
+{
+    if (!gParts->radiobuttonWidget) {
+        gParts->radiobuttonWidget = gtk_radio_button_new_with_label(NULL, "M");
+        setup_widget_prototype(gParts->radiobuttonWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_scrollbar_widget()
+{
+    if (!gParts->vertScrollbarWidget) {
+        gParts->vertScrollbarWidget = gtk_vscrollbar_new(NULL);
+        setup_widget_prototype(gParts->vertScrollbarWidget);
+    }
+    if (!gParts->horizScrollbarWidget) {
+        gParts->horizScrollbarWidget = gtk_hscrollbar_new(NULL);
+        setup_widget_prototype(gParts->horizScrollbarWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_scale_widget()
+{
+  if (!gParts->hScaleWidget) {
+    gParts->hScaleWidget = gtk_hscale_new(NULL);
+    setup_widget_prototype(gParts->hScaleWidget);
+  }
+  if (!gParts->vScaleWidget) {
+    gParts->vScaleWidget = gtk_vscale_new(NULL);
+    setup_widget_prototype(gParts->vScaleWidget);
+  }
+  return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_entry_widget()
+{
+    if (!gParts->entryWidget) {
+        gParts->entryWidget = gtk_entry_new();
+        setup_widget_prototype(gParts->entryWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+/* We need to have pointers to the inner widgets (button, separator, arrow)
+ * of the ComboBox to get the correct rendering from theme engines which
+ * special cases their look. Since the inner layout can change, we ask GTK
+ * to NULL our pointers when they are about to become invalid because the
+ * corresponding widgets don't exist anymore. It's the role of
+ * g_object_add_weak_pointer().
+ * Note that if we don't find the inner widgets (which shouldn't happen), we
+ * fallback to use generic "non-inner" widgets, and they don't need that kind
+ * of weak pointer since they are explicit children of gParts->protoWindow and as
+ * such GTK holds a strong reference to them. */
+static void
+moz_gtk_get_combo_box_inner_button(GtkWidget *widget, gpointer client_data)
+{
+    if (GTK_IS_TOGGLE_BUTTON(widget)) {
+        gParts->comboBoxButtonWidget = widget;
+        g_object_add_weak_pointer(G_OBJECT(widget),
+                                  (gpointer) &gParts->comboBoxButtonWidget);
+        gtk_widget_realize(widget);
+        g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
+    }
+}
+
+static void
+moz_gtk_get_combo_box_button_inner_widgets(GtkWidget *widget,
+                                           gpointer client_data)
+{
+    if (GTK_IS_SEPARATOR(widget)) {
+        gParts->comboBoxSeparatorWidget = widget;
+        g_object_add_weak_pointer(G_OBJECT(widget),
+                                  (gpointer) &gParts->comboBoxSeparatorWidget);
+    } else if (GTK_IS_ARROW(widget)) {
+        gParts->comboBoxArrowWidget = widget;
+        g_object_add_weak_pointer(G_OBJECT(widget),
+                                  (gpointer) &gParts->comboBoxArrowWidget);
+    } else
+        return;
+    gtk_widget_realize(widget);
+    g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
+}
+
+static gint
+ensure_combo_box_widgets()
+{
+    GtkWidget* buttonChild;
+
+    if (gParts->comboBoxButtonWidget && gParts->comboBoxArrowWidget)
+        return MOZ_GTK_SUCCESS;
+
+    /* Create a ComboBox if needed */
+    if (!gParts->comboBoxWidget) {
+        gParts->comboBoxWidget = gtk_combo_box_new();
+        setup_widget_prototype(gParts->comboBoxWidget);
+    }
+
+    /* Get its inner Button */
+    gtk_container_forall(GTK_CONTAINER(gParts->comboBoxWidget),
+                         moz_gtk_get_combo_box_inner_button,
+                         NULL);
+
+    if (gParts->comboBoxButtonWidget) {
+        /* Get the widgets inside the Button */
+        buttonChild = gtk_bin_get_child(GTK_BIN(gParts->comboBoxButtonWidget));
+        if (GTK_IS_HBOX(buttonChild)) {
+            /* appears-as-list = FALSE, cell-view = TRUE; the button
+             * contains an hbox. This hbox is there because the ComboBox
+             * needs to place a cell renderer, a separator, and an arrow in
+             * the button when appears-as-list is FALSE. */
+            gtk_container_forall(GTK_CONTAINER(buttonChild),
+                                 moz_gtk_get_combo_box_button_inner_widgets,
+                                 NULL);
+        } else if(GTK_IS_ARROW(buttonChild)) {
+            /* appears-as-list = TRUE, or cell-view = FALSE;
+             * the button only contains an arrow */
+            gParts->comboBoxArrowWidget = buttonChild;
+            g_object_add_weak_pointer(G_OBJECT(buttonChild), (gpointer)
+                                      &gParts->comboBoxArrowWidget);
+            gtk_widget_realize(gParts->comboBoxArrowWidget);
+            g_object_set_data(G_OBJECT(gParts->comboBoxArrowWidget),
+                              "transparent-bg-hint", GINT_TO_POINTER(TRUE));
+        }
+    } else {
+        /* Shouldn't be reached with current internal gtk implementation; we
+         * use a generic toggle button as last resort fallback to avoid
+         * crashing. */
+        ensure_toggle_button_widget();
+        gParts->comboBoxButtonWidget = gParts->toggleButtonWidget;
+    }
+
+    if (!gParts->comboBoxArrowWidget) {
+        /* Shouldn't be reached with current internal gtk implementation;
+         * we gParts->buttonArrowWidget as last resort fallback to avoid
+         * crashing. */
+        ensure_button_arrow_widget();
+        gParts->comboBoxArrowWidget = gParts->buttonArrowWidget;
+    }
+
+    /* We don't test the validity of gParts->comboBoxSeparatorWidget since there
+     * is none when "appears-as-list" = TRUE or "cell-view" = FALSE; if it
+     * is invalid we just won't paint it. */
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_progress_widget()
+{
+    if (!gParts->progresWidget) {
+        gParts->progresWidget = gtk_progress_bar_new();
+        setup_widget_prototype(gParts->progresWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+ensure_scrolled_window_widget()
+{
+    if (!gParts->scrolledWindowWidget) {
+        gParts->scrolledWindowWidget = gtk_scrolled_window_new(NULL, NULL);
+        setup_widget_prototype(gParts->scrolledWindowWidget);
+    }
+    return MOZ_GTK_SUCCESS;
+}
+
+static GtkStateType
+ConvertGtkState(GtkWidgetState* state)
+{
+    if (state->disabled)
+        return GTK_STATE_INSENSITIVE;
+    else if (state->depressed)
+        return (state->inHover ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
+    else if (state->inHover)
+        return (state->active ? GTK_STATE_ACTIVE : GTK_STATE_PRELIGHT);
+    else
+        return GTK_STATE_NORMAL;
+}
+
+static gint
+moz_gtk_button_paint(cairo_t* cr, GdkRectangle* rect,
+                     GtkWidgetState* state, GtkReliefStyle relief,
+                     GtkWidget* widget, GtkTextDirection direction)
+{
+    GtkShadowType shadow_type;
+    GtkStyle* style = gtk_widget_get_style(widget);
+    GtkStateType button_state = ConvertGtkState(state);
+    gint x = rect->x, y=rect->y, width=rect->width, height=rect->height;
+    GdkWindow* window = gtk_widget_get_window(widget);
+
+    gboolean interior_focus;
+    gint focus_width, focus_pad;
+
+    moz_gtk_widget_get_focus(widget, &interior_focus, &focus_width, &focus_pad);
+
+    if (window && gdk_window_is_visible(window)) {
+        gdk_window_set_background_pattern(window, NULL);
+    }
+
+    gtk_widget_set_state(widget, button_state);
+    gtk_widget_set_direction(widget, direction);
+    gtk_button_set_relief(GTK_BUTTON(widget), relief);
+
+    if (!interior_focus && state->focused) {
+        x += focus_width + focus_pad;
+        y += focus_width + focus_pad;
+        width -= 2 * (focus_width + focus_pad);
+        height -= 2 * (focus_width + focus_pad);
+    }
+
+    shadow_type = button_state == GTK_STATE_ACTIVE ||
+                      state->depressed ? GTK_SHADOW_IN : GTK_SHADOW_OUT;
+
+    if (state->isDefault && relief == GTK_RELIEF_NORMAL) {
+        gtk_paint_box(style, cr, button_state, shadow_type,
+                      widget, "buttondefault", x, y, width, height);
+    }
+
+    if (relief != GTK_RELIEF_NONE || state->depressed ||
+           (button_state != GTK_STATE_NORMAL &&
+            button_state != GTK_STATE_INSENSITIVE)) {
+        /* the following line can trigger an assertion (Crux theme)
+           file ../../gdk/gdkwindow.c: line 1846 (gdk_window_clear_area):
+           assertion `GDK_IS_WINDOW (window)' failed */
+        gtk_paint_box(style, cr, button_state, shadow_type,
+                      widget, "button", x, y, width, height);
+    }
+
+    if (state->focused) {
+        if (interior_focus) {
+            GtkStyle* style = gtk_widget_get_style(widget);
+            x += style->xthickness + focus_pad;
+            y += style->ythickness + focus_pad;
+            width -= 2 * (style->xthickness + focus_pad);
+            height -= 2 * (style->ythickness + focus_pad);
+        } else {
+            x -= focus_width + focus_pad;
+            y -= focus_width + focus_pad;
+            width += 2 * (focus_width + focus_pad);
+            height += 2 * (focus_width + focus_pad);
+        }
+
+        gtk_paint_focus(style, cr, button_state,
+                        widget, "button", x, y, width, height);
+    }
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_init()
+{
+    GtkWidgetClass *entry_class;
+
+    is_initialized = TRUE;
+    have_arrow_scaling = (gtk_major_version > 2 ||
+                          (gtk_major_version == 2 && gtk_minor_version >= 12));
+
+    /* Add style property to GtkEntry.
+     * Adding the style property to the normal GtkEntry class means that it
+     * will work without issues inside GtkComboBox and for Spinbuttons. */
+    entry_class = g_type_class_ref(GTK_TYPE_ENTRY);
+    gtk_widget_class_install_style_property(entry_class,
+        g_param_spec_boolean("honors-transparent-bg-hint",
+                             "Transparent BG enabling flag",
+                             "If TRUE, the theme is able to draw the GtkEntry on non-prefilled background.",
+                             FALSE,
+                             G_PARAM_READWRITE));
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_checkbox_get_metrics(gint* indicator_size, gint* indicator_spacing)
+{
+    ensure_checkbox_widget();
+
+    gtk_widget_style_get (gParts->checkboxWidget,
+                          "indicator_size", indicator_size,
+                          "indicator_spacing", indicator_spacing,
+                          NULL);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_radio_get_metrics(gint* indicator_size, gint* indicator_spacing)
+{
+    ensure_radiobutton_widget();
+
+    gtk_widget_style_get (gParts->radiobuttonWidget,
+                          "indicator_size", indicator_size,
+                          "indicator_spacing", indicator_spacing,
+                          NULL);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_widget_get_focus(GtkWidget* widget, gboolean* interior_focus,
+                         gint* focus_width, gint* focus_pad)
+{
+    gtk_widget_style_get (widget,
+                          "interior-focus", interior_focus,
+                          "focus-line-width", focus_width,
+                          "focus-padding", focus_pad,
+                          NULL);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_button_get_inner_border(GtkWidget* widget, GtkBorder* inner_border)
+{
+    static const GtkBorder default_inner_border = { 1, 1, 1, 1 };
+    GtkBorder *tmp_border;
+
+    gtk_widget_style_get (widget, "inner-border", &tmp_border, NULL);
+
+    if (tmp_border) {
+        *inner_border = *tmp_border;
+        gtk_border_free(tmp_border);
+    }
+    else
+        *inner_border = default_inner_border;
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_toggle_paint(cairo_t* cr, GdkRectangle* rect,
+                     GtkWidgetState* state, gboolean selected,
+                     gboolean inconsistent, gboolean isradio,
+                     GtkTextDirection direction)
+{
+    GtkStateType state_type = ConvertGtkState(state);
+    GtkShadowType shadow_type = (selected)?GTK_SHADOW_IN:GTK_SHADOW_OUT;
+    gint indicator_size, indicator_spacing;
+    gint x, y, width, height;
+    gint focus_x, focus_y, focus_width, focus_height;
+    GtkWidget *w;
+    GtkStyle *style;
+
+    if (isradio) {
+        moz_gtk_radio_get_metrics(&indicator_size, &indicator_spacing);
+        w = gParts->radiobuttonWidget;
+    } else {
+        moz_gtk_checkbox_get_metrics(&indicator_size, &indicator_spacing);
+        w = gParts->checkboxWidget;
+    }
+
+    // "GetMinimumWidgetSize was ignored"
+    // FIXME: This assert causes a build failure in WebKitGTK+ debug
+    // builds, because it uses 'false' in its definition. We may want
+    // to force this file to be built with g++, by renaming it.
+    // ASSERT(rect->width == indicator_size);
+
+    /*
+     * vertically center in the box, since XUL sometimes ignores our
+     * GetMinimumWidgetSize in the vertical dimension
+     */
+    x = rect->x;
+    y = rect->y + (rect->height - indicator_size) / 2;
+    width = indicator_size;
+    height = indicator_size;
+
+    focus_x = x - indicator_spacing;
+    focus_y = y - indicator_spacing;
+    focus_width = width + 2 * indicator_spacing;
+    focus_height = height + 2 * indicator_spacing;
+
+    style = gtk_widget_get_style(w);
+
+    gtk_widget_set_sensitive(w, !state->disabled);
+    gtk_widget_set_direction(w, direction);
+    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), selected);
+
+    if (isradio) {
+        gtk_paint_option(style, cr, state_type, shadow_type,
+                         gParts->radiobuttonWidget, "radiobutton", x, y,
+                         width, height);
+        if (state->focused) {
+            gtk_paint_focus(style, cr, GTK_STATE_ACTIVE,
+                            gParts->radiobuttonWidget, "radiobutton", focus_x, focus_y,
+                            focus_width, focus_height);
+        }
+    }
+    else {
+       /*
+        * 'indeterminate' type on checkboxes. In GTK, the shadow type
+        * must also be changed for the state to be drawn.
+        */
+        if (inconsistent) {
+            gtk_toggle_button_set_inconsistent(GTK_TOGGLE_BUTTON(gParts->checkboxWidget), TRUE);
+            shadow_type = GTK_SHADOW_ETCHED_IN;
+        } else {
+            gtk_toggle_button_set_inconsistent(GTK_TOGGLE_BUTTON(gParts->checkboxWidget), FALSE);
+        }
+
+        gtk_paint_check(style, cr, state_type, shadow_type,
+                        gParts->checkboxWidget, "checkbutton", x, y, width, height);
+        if (state->focused) {
+            gtk_paint_focus(style, cr, GTK_STATE_ACTIVE,
+                            gParts->checkboxWidget, "checkbutton", focus_x, focus_y,
+                            focus_width, focus_height);
+        }
+    }
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+calculate_button_inner_rect(GtkWidget* button, GdkRectangle* rect,
+                            GdkRectangle* inner_rect,
+                            GtkTextDirection direction,
+                            gboolean ignore_focus)
+{
+    GtkBorder inner_border;
+    gboolean interior_focus;
+    gint focus_width, focus_pad;
+    GtkStyle* style;
+
+    style = gtk_widget_get_style(button);
+
+    /* This mirrors gtkbutton's child positioning */
+    moz_gtk_button_get_inner_border(button, &inner_border);
+    moz_gtk_widget_get_focus(button, &interior_focus,
+                             &focus_width, &focus_pad);
+
+    if (ignore_focus)
+        focus_width = focus_pad = 0;
+
+    inner_rect->x = rect->x + XTHICKNESS(style) + focus_width + focus_pad;
+    inner_rect->x += direction == GTK_TEXT_DIR_LTR ?
+                        inner_border.left : inner_border.right;
+    inner_rect->y = rect->y + inner_border.top + YTHICKNESS(style) +
+                    focus_width + focus_pad;
+    inner_rect->width = MAX(1, rect->width - inner_border.left -
+       inner_border.right - (XTHICKNESS(style) + focus_pad + focus_width) * 2);
+    inner_rect->height = MAX(1, rect->height - inner_border.top -
+       inner_border.bottom - (YTHICKNESS(style) + focus_pad + focus_width) * 2);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+
+static gint
+calculate_arrow_rect(GtkWidget* arrow, GdkRectangle* rect,
+                     GdkRectangle* arrow_rect, GtkTextDirection direction)
+{
+    /* defined in gtkarrow.c */
+    gfloat arrow_scaling = 0.7;
+    gfloat xalign, xpad;
+    gint extent;
+    GtkMisc* misc = GTK_MISC(arrow);
+    gfloat misc_xalign, misc_yalign;
+    gint misc_xpad, misc_ypad;
+
+    if (have_arrow_scaling)
+        gtk_widget_style_get(arrow, "arrow_scaling", &arrow_scaling, NULL);
+
+    gtk_misc_get_padding(misc, &misc_xpad, &misc_ypad);
+    gtk_misc_get_alignment(misc, &misc_xalign, &misc_yalign);
+
+    extent = MIN((rect->width - misc_xpad * 2),
+                 (rect->height - misc_ypad * 2)) * arrow_scaling;
+
+    xalign = direction == GTK_TEXT_DIR_LTR ? misc_xalign : 1.0 - misc_xalign;
+    xpad = misc_xpad + (rect->width - extent) * xalign;
+
+    arrow_rect->x = direction == GTK_TEXT_DIR_LTR ?
+                        floor(rect->x + xpad) : ceil(rect->x + xpad);
+    arrow_rect->y = floor(rect->y + misc_ypad +
+                          ((rect->height - extent) * misc_yalign));
+
+    arrow_rect->width = arrow_rect->height = extent;
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_scrolled_window_paint(cairo_t* cr, GdkRectangle* rect,
+                              GtkWidgetState* state)
+{
+    GtkStateType state_type = ConvertGtkState(state);
+    GtkShadowType shadow_type = (state->active) ?  GTK_SHADOW_IN : GTK_SHADOW_OUT;
+    GtkStyle* style;
+    GtkAllocation allocation;
+    GtkWidget* widget;
+
+    ensure_scrolled_window_widget();
+    widget = gParts->scrolledWindowWidget;
+
+    gtk_widget_get_allocation(widget, &allocation);
+    allocation.x = rect->x;
+    allocation.y = rect->y;
+    allocation.width = rect->width;
+    allocation.height = rect->height;
+    gtk_widget_set_allocation(widget, &allocation);
+
+    style = gtk_widget_get_style(widget);
+    gtk_paint_box(style, cr, state_type, shadow_type,
+                  widget, "scrolled_window", rect->x - 1, rect->y - 1,
+                  rect->width + 2, rect->height + 2);
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_scrollbar_button_paint(cairo_t* cr, GdkRectangle* rect,
+                               GtkWidgetState* state,
+                               GtkScrollbarButtonFlags flags,
+                               GtkTextDirection direction)
+{
+    GtkStateType state_type = ConvertGtkState(state);
+    GtkShadowType shadow_type = (state->active) ?
+        GTK_SHADOW_IN : GTK_SHADOW_OUT;
+    GdkRectangle arrow_rect;
+    GtkStyle* style;
+    GtkWidget *scrollbar;
+    GtkAllocation allocation;
+    GtkArrowType arrow_type;
+    gint arrow_displacement_x, arrow_displacement_y;
+    const char* detail = (flags & MOZ_GTK_STEPPER_VERTICAL) ?
+                           "vscrollbar" : "hscrollbar";
+
+    ensure_scrollbar_widget();
+
+    if (flags & MOZ_GTK_STEPPER_VERTICAL)
+        scrollbar = gParts->vertScrollbarWidget;
+    else
+        scrollbar = gParts->horizScrollbarWidget;
+
+    gtk_widget_set_direction(scrollbar, direction);
+
+    /* Some theme engines (i.e., ClearLooks) check the scrollbar's allocation
+       to determine where it should paint rounded corners on the buttons.
+       We need to trick them into drawing the buttons the way we want them. */
+
+    gtk_widget_get_allocation(scrollbar, &allocation);
+    allocation.x = rect->x;
+    allocation.y = rect->y;
+    allocation.width = rect->width;
+    allocation.height = rect->height;
+
+    if (flags & MOZ_GTK_STEPPER_VERTICAL) {
+        allocation.height *= 5;
+        if (flags & MOZ_GTK_STEPPER_DOWN) {
+            arrow_type = GTK_ARROW_DOWN;
+            if (flags & MOZ_GTK_STEPPER_BOTTOM)
+                allocation.y -= 4 * rect->height;
+            else
+                allocation.y -= rect->height;
+
+        } else {
+            arrow_type = GTK_ARROW_UP;
+            if (flags & MOZ_GTK_STEPPER_BOTTOM)
+                allocation.y -= 3 * rect->height;
+        }
+    } else {
+        allocation.width *= 5;
+        if (flags & MOZ_GTK_STEPPER_DOWN) {
+            arrow_type = GTK_ARROW_RIGHT;
+            if (flags & MOZ_GTK_STEPPER_BOTTOM)
+                allocation.x -= 4 * rect->width;
+            else
+                allocation.x -= rect->width;
+        } else {
+            arrow_type = GTK_ARROW_LEFT;
+            if (flags & MOZ_GTK_STEPPER_BOTTOM)
+                allocation.x -= 3 * rect->width;
+        }
+    }
+
+    gtk_widget_set_allocation(scrollbar, &allocation);
+    style = gtk_widget_get_style(scrollbar);
+
+    gtk_paint_box(style, cr, state_type, shadow_type,
+                  scrollbar, detail, rect->x, rect->y,
+                  rect->width, rect->height);
+
+    arrow_rect.width = rect->width / 2;
+    arrow_rect.height = rect->height / 2;
+    arrow_rect.x = rect->x + (rect->width - arrow_rect.width) / 2;
+    arrow_rect.y = rect->y + (rect->height - arrow_rect.height) / 2;
+
+    if (state_type == GTK_STATE_ACTIVE) {
+        gtk_widget_style_get(scrollbar,
+                             "arrow-displacement-x", &arrow_displacement_x,
+                             "arrow-displacement-y", &arrow_displacement_y,
+                             NULL);
+
+        arrow_rect.x += arrow_displacement_x;
+        arrow_rect.y += arrow_displacement_y;
+    }
+
+    gtk_paint_arrow(style, cr, state_type, shadow_type,
+                    scrollbar, detail, arrow_type, TRUE, arrow_rect.x,
+                    arrow_rect.y, arrow_rect.width, arrow_rect.height);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_scrollbar_trough_paint(GtkThemeWidgetType widget,
+                               cairo_t* cr, GdkRectangle* rect,
+                               GtkWidgetState* state,
+                               GtkTextDirection direction)
+{
+    GtkStyle* style;
+    GtkScrollbar *scrollbar;
+
+    ensure_scrollbar_widget();
+
+    if (widget ==  MOZ_GTK_SCROLLBAR_TRACK_HORIZONTAL)
+        scrollbar = GTK_SCROLLBAR(gParts->horizScrollbarWidget);
+    else
+        scrollbar = GTK_SCROLLBAR(gParts->vertScrollbarWidget);
+
+    gtk_widget_set_direction(GTK_WIDGET(scrollbar), direction);
+
+    style = gtk_widget_get_style(GTK_WIDGET(scrollbar));
+
+    gtk_paint_box(style, cr, GTK_STATE_ACTIVE, GTK_SHADOW_IN,
+                  GTK_WIDGET(scrollbar), "trough", rect->x, rect->y,
+                  rect->width, rect->height);
+
+    if (state->focused) {
+        gtk_paint_focus(style, cr, GTK_STATE_ACTIVE,
+                        GTK_WIDGET(scrollbar), "trough",
+                        rect->x, rect->y, rect->width, rect->height);
+    }
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_scrollbar_thumb_paint(GtkThemeWidgetType widget,
+                              cairo_t* cr, GdkRectangle* rect,
+                              GtkWidgetState* state,
+                              GtkTextDirection direction)
+{
+    GtkStateType state_type = (state->inHover || state->active) ?
+        GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
+    GtkShadowType shadow_type = GTK_SHADOW_OUT;
+    GtkStyle* style;
+    GtkScrollbar *scrollbar;
+    GtkAdjustment *adj;
+
+    ensure_scrollbar_widget();
+
+    if (widget == MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL)
+        scrollbar = GTK_SCROLLBAR(gParts->horizScrollbarWidget);
+    else
+        scrollbar = GTK_SCROLLBAR(gParts->vertScrollbarWidget);
+
+    gtk_widget_set_direction(GTK_WIDGET(scrollbar), direction);
+
+    /* Make sure to set the scrollbar range before painting so that
+       everything is drawn properly.  At least the bluecurve (and
+       maybe other) themes don't draw the top or bottom black line
+       surrounding the scrollbar if the theme thinks that it's butted
+       up against the scrollbar arrows.  Note the increases of the
+       clip rect below. */
+    adj = gtk_range_get_adjustment(GTK_RANGE(scrollbar));
+
+    if (widget == MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL) {
+        gtk_adjustment_set_page_size(adj, rect->width);
+    }
+    else {
+        gtk_adjustment_set_page_size(adj, rect->height);
+    }
+
+    gtk_adjustment_configure(adj,
+                             state->curpos,
+                             0,
+                             state->maxpos,
+                             gtk_adjustment_get_step_increment(adj),
+                             gtk_adjustment_get_page_increment(adj),
+                             gtk_adjustment_get_page_size(adj));
+
+    style = gtk_widget_get_style(GTK_WIDGET(scrollbar));
+
+    gtk_paint_slider(style, cr, state_type, shadow_type,
+                     GTK_WIDGET(scrollbar), "slider", rect->x, rect->y,
+                     rect->width,  rect->height,
+                     (widget == MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL) ?
+                     GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_scale_paint(cairo_t* cr, GdkRectangle* rect,
+                    GtkWidgetState* state, GtkOrientation flags,
+                    GtkTextDirection direction)
+{
+  gint x = 0, y = 0;
+  GtkStateType state_type = ConvertGtkState(state);
+  GtkStyle* style;
+  GtkWidget* widget;
+
+  ensure_scale_widget();
+  widget = ((flags == GTK_ORIENTATION_HORIZONTAL) ? gParts->hScaleWidget : gParts->vScaleWidget);
+  gtk_widget_set_direction(widget, direction);
+
+  style = gtk_widget_get_style(widget);
+
+  if (flags == GTK_ORIENTATION_HORIZONTAL) {
+    x = XTHICKNESS(style);
+    y++;
+  }
+  else {
+    x++;
+    y = YTHICKNESS(style);
+  }
+
+  gtk_style_apply_default_background(style, cr, gtk_widget_get_window (widget),
+                                     GTK_STATE_NORMAL,
+                                     rect->x, rect->y,
+                                     rect->width, rect->height);
+
+  gtk_paint_box(style, cr, GTK_STATE_ACTIVE, GTK_SHADOW_IN,
+                widget, "trough", rect->x + x, rect->y + y,
+                rect->width - 2*x, rect->height - 2*y);
+
+  if (state->focused)
+    gtk_paint_focus(style, cr, state_type, widget, "trough",
+                    rect->x, rect->y, rect->width, rect->height);
+
+  return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_scale_thumb_paint(cairo_t* cr, GdkRectangle* rect,
+                          GtkWidgetState* state, GtkOrientation flags,
+                          GtkTextDirection direction)
+{
+  GtkStateType state_type = ConvertGtkState(state);
+  GtkStyle* style;
+  GtkWidget* widget;
+  gint thumb_width, thumb_height, x, y;
+
+  ensure_scale_widget();
+  widget = ((flags == GTK_ORIENTATION_HORIZONTAL) ? gParts->hScaleWidget : gParts->vScaleWidget);
+  gtk_widget_set_direction(widget, direction);
+
+  style = gtk_widget_get_style(widget);
+
+  /* determine the thumb size, and position the thumb in the center in the opposite axis */
+  if (flags == GTK_ORIENTATION_HORIZONTAL) {
+    moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_HORIZONTAL, &thumb_width, &thumb_height);
+    x = rect->x;
+    y = rect->y + (rect->height - thumb_height) / 2;
+  }
+  else {
+    moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_VERTICAL, &thumb_height, &thumb_width);
+    x = rect->x + (rect->width - thumb_width) / 2;
+    y = rect->y;
+  }
+
+  gtk_paint_slider(style, cr, state_type, GTK_SHADOW_OUT,
+                   widget, (flags == GTK_ORIENTATION_HORIZONTAL) ? "hscale" : "vscale",
+                   x, y, thumb_width, thumb_height, flags);
+
+  return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_entry_paint(cairo_t* cr, GdkRectangle* rect,
+                    GtkWidgetState* state, GtkWidget* widget,
+                    GtkTextDirection direction)
+{
+    GtkStateType bg_state = state->disabled ?
+                                GTK_STATE_INSENSITIVE : GTK_STATE_NORMAL;
+    gint x, y, width = rect->width, height = rect->height;
+    GtkStyle* style;
+    gboolean interior_focus;
+    gboolean theme_honors_transparency = FALSE;
+    gint focus_width;
+
+    gtk_widget_set_direction(widget, direction);
+
+    style = gtk_widget_get_style(widget);
+
+    gtk_widget_style_get(widget,
+                         "interior-focus", &interior_focus,
+                         "focus-line-width", &focus_width,
+                         "honors-transparent-bg-hint", &theme_honors_transparency,
+                         NULL);
+
+    /* gtkentry.c uses two windows, one for the entire widget and one for the
+     * text area inside it. The background of both windows is set to the "base"
+     * color of the new state in gtk_entry_state_changed, but only the inner
+     * textarea window uses gtk_paint_flat_box when exposed */
+
+    /* This gets us a lovely greyish disabledish look */
+    gtk_widget_set_sensitive(widget, !state->disabled);
+
+    /* GTK fills the outer widget window with the base color before drawing the widget.
+     * Some older themes rely on this behavior, but many themes nowadays use rounded
+     * corners on their widgets. While most GTK apps are blissfully unaware of this
+     * problem due to their use of the default window background, we render widgets on
+     * many kinds of backgrounds on the web.
+     * If the theme is able to cope with transparency, then we can skip pre-filling
+     * and notify the theme it will paint directly on the canvas. */
+    if (theme_honors_transparency) {
+        g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
+    } else {
+        cairo_save(cr);
+        gdk_cairo_set_source_color(cr, (const GdkColor*)&style->base[bg_state]);
+        cairo_pattern_set_extend(cairo_get_source(cr), CAIRO_EXTEND_REPEAT);
+        cairo_fill(cr);
+        cairo_restore(cr);
+        g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(FALSE));
+    }
+
+    /* Get the position of the inner window, see _gtk_entry_get_borders */
+    x = XTHICKNESS(style);
+    y = YTHICKNESS(style);
+
+    if (!interior_focus) {
+        x += focus_width;
+        y += focus_width;
+    }
+
+    /* Simulate an expose of the inner window */
+    gtk_paint_flat_box(style, cr, bg_state, GTK_SHADOW_NONE,
+                       widget, "entry_bg",  rect->x + x,
+                       rect->y + y, rect->width - 2*x, rect->height - 2*y);
+
+    /* Now paint the shadow and focus border.
+     * We do like in gtk_entry_draw_frame, we first draw the shadow, a tad
+     * smaller when focused if the focus is not interior, then the focus. */
+    x = rect->x;
+    y = rect->y;
+
+    if (state->focused && !state->disabled) {
+        /* This will get us the lit borders that focused textboxes enjoy on
+         * some themes. */
+        if (!interior_focus) {
+            /* Indent the border a little bit if we have exterior focus
+               (this is what GTK does to draw native entries) */
+            x += focus_width;
+            y += focus_width;
+            width -= 2 * focus_width;
+            height -= 2 * focus_width;
+        }
+    }
+
+    gtk_paint_shadow(style, cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
+                     widget, "entry", x, y, width, height);
+
+    if (state->focused && !state->disabled) {
+        if (!interior_focus) {
+            gtk_paint_focus(style, cr,  GTK_STATE_NORMAL,
+                            widget, "entry",
+                            rect->x, rect->y, rect->width, rect->height);
+        }
+    }
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_combo_box_paint(cairo_t* cr, GdkRectangle* rect,
+                        GtkWidgetState* state, gboolean ishtml,
+                        GtkTextDirection direction)
+{
+    GdkRectangle arrow_rect, real_arrow_rect;
+    gint /* arrow_size, */ separator_width;
+    gboolean wide_separators;
+    GtkStateType state_type = ConvertGtkState(state);
+    GtkShadowType shadow_type = state->active ? GTK_SHADOW_IN : GTK_SHADOW_OUT;
+    GtkStyle* style;
+    GtkRequisition arrow_req;
+
+    ensure_combo_box_widgets();
+
+    /* Also sets the direction on gParts->comboBoxButtonWidget, which is then
+     * inherited by the separator and arrow */
+    moz_gtk_button_paint(cr, rect, state, GTK_RELIEF_NORMAL,
+                         gParts->comboBoxButtonWidget, direction);
+
+    calculate_button_inner_rect(gParts->comboBoxButtonWidget,
+                                rect, &arrow_rect, direction, ishtml);
+    /* Now arrow_rect contains the inner rect ; we want to correct the width
+     * to what the arrow needs (see gtk_combo_box_size_allocate) */
+    gtk_widget_get_preferred_size(gParts->comboBoxArrowWidget, &arrow_req, NULL);
+    if (direction == GTK_TEXT_DIR_LTR)
+        arrow_rect.x += arrow_rect.width - arrow_req.width;
+    arrow_rect.width = arrow_req.width;
+
+    calculate_arrow_rect(gParts->comboBoxArrowWidget,
+                         &arrow_rect, &real_arrow_rect, direction);
+
+    style = gtk_widget_get_style(gParts->comboBoxArrowWidget);
+
+    gtk_widget_size_allocate(gParts->comboBoxWidget, rect);
+
+    gtk_paint_arrow(style, cr, state_type, shadow_type,
+                    gParts->comboBoxArrowWidget, "arrow",  GTK_ARROW_DOWN, TRUE,
+                    real_arrow_rect.x, real_arrow_rect.y,
+                    real_arrow_rect.width, real_arrow_rect.height);
+
+
+    /* If there is no separator in the theme, there's nothing left to do. */
+    if (!gParts->comboBoxSeparatorWidget)
+        return MOZ_GTK_SUCCESS;
+
+    style = gtk_widget_get_style(gParts->comboBoxSeparatorWidget);
+
+    gtk_widget_style_get(gParts->comboBoxSeparatorWidget,
+                         "wide-separators", &wide_separators,
+                         "separator-width", &separator_width,
+                         NULL);
+
+    if (wide_separators) {
+        if (direction == GTK_TEXT_DIR_LTR)
+            arrow_rect.x -= separator_width;
+        else
+            arrow_rect.x += arrow_rect.width;
+
+        gtk_paint_box(style, cr,
+                      GTK_STATE_NORMAL, GTK_SHADOW_ETCHED_OUT,
+                      gParts->comboBoxSeparatorWidget, "vseparator",
+                      arrow_rect.x, arrow_rect.y,
+                      separator_width, arrow_rect.height);
+    } else {
+        if (direction == GTK_TEXT_DIR_LTR)
+            arrow_rect.x -= XTHICKNESS(style);
+        else
+            arrow_rect.x += arrow_rect.width;
+
+        gtk_paint_vline(style, cr, GTK_STATE_NORMAL,
+                        gParts->comboBoxSeparatorWidget, "vseparator",
+                        arrow_rect.y, arrow_rect.y + arrow_rect.height,
+                        arrow_rect.x);
+    }
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_progressbar_paint(cairo_t* cr, GdkRectangle* rect,
+                          GtkTextDirection direction)
+{
+    GtkStyle* style;
+
+    ensure_progress_widget();
+    gtk_widget_set_direction(gParts->progresWidget, direction);
+
+    style = gtk_widget_get_style(gParts->progresWidget);
+
+    gtk_paint_box(style, cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
+                  gParts->progresWidget, "trough", rect->x, rect->y,
+                  rect->width, rect->height);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+static gint
+moz_gtk_progress_chunk_paint(cairo_t* cr, GdkRectangle* rect,
+                             GtkTextDirection direction)
+{
+    GtkStyle* style;
+
+    ensure_progress_widget();
+    gtk_widget_set_direction(gParts->progresWidget, direction);
+
+    style = gtk_widget_get_style(gParts->progresWidget);
+
+    gtk_paint_box(style, cr, GTK_STATE_PRELIGHT, GTK_SHADOW_OUT,
+                  gParts->progresWidget, "bar", rect->x, rect->y,
+                  rect->width, rect->height);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_get_widget_border(GtkThemeWidgetType widget, gint* left, gint* top,
+                          gint* right, gint* bottom, GtkTextDirection direction,
+                          gboolean inhtml)
+{
+    GtkWidget* w;
+    GtkStyle *style;
+
+    switch (widget) {
+    case MOZ_GTK_BUTTON:
+        {
+            GtkBorder inner_border;
+            gboolean interior_focus;
+            gint focus_width, focus_pad;
+            GtkStyle *style;
+
+            ensure_button_widget();
+            *left = *top = *right = *bottom = gtk_container_get_border_width(GTK_CONTAINER(gParts->buttonWidget));
+
+            /* Don't add this padding in HTML, otherwise the buttons will
+               become too big and stuff the layout. */
+            if (!inhtml) {
+                moz_gtk_widget_get_focus(gParts->buttonWidget, &interior_focus, &focus_width, &focus_pad);
+                moz_gtk_button_get_inner_border(gParts->buttonWidget, &inner_border);
+                *left += focus_width + focus_pad + inner_border.left;
+                *right += focus_width + focus_pad + inner_border.right;
+                *top += focus_width + focus_pad + inner_border.top;
+                *bottom += focus_width + focus_pad + inner_border.bottom;
+            }
+
+            style = gtk_widget_get_style(gParts->buttonWidget);
+            *left += style->xthickness;
+            *right += style->xthickness;
+            *top += style->ythickness;
+            *bottom += style->ythickness;
+            return MOZ_GTK_SUCCESS;
+        }
+    case MOZ_GTK_ENTRY:
+        ensure_entry_widget();
+        w = gParts->entryWidget;
+        break;
+    case MOZ_GTK_DROPDOWN:
+        {
+            /* We need to account for the arrow on the dropdown, so text
+             * doesn't come too close to the arrow, or in some cases spill
+             * into the arrow. */
+            gboolean ignored_interior_focus, wide_separators;
+            gint focus_width, focus_pad, separator_width;
+            GtkRequisition arrow_req;
+            GtkStyle* style;
+
+            ensure_combo_box_widgets();
+
+            *left = gtk_container_get_border_width(GTK_CONTAINER(gParts->comboBoxButtonWidget));
+
+            if (!inhtml) {
+                moz_gtk_widget_get_focus(gParts->comboBoxButtonWidget,
+                                         &ignored_interior_focus,
+                                         &focus_width, &focus_pad);
+                *left += focus_width + focus_pad;
+            }
+
+            style = gtk_widget_get_style(gParts->comboBoxButtonWidget);
+            *top = *left + style->ythickness;
+            *left += style->xthickness;
+
+            *right = *left; *bottom = *top;
+
+            /* If there is no separator, don't try to count its width. */
+            separator_width = 0;
+            if (gParts->comboBoxSeparatorWidget) {
+                gtk_widget_style_get(gParts->comboBoxSeparatorWidget,
+                                     "wide-separators", &wide_separators,
+                                     "separator-width", &separator_width,
+                                     NULL);
+
+                if (!wide_separators)
+                    separator_width =
+                        XTHICKNESS(style);
+            }
+
+            gtk_widget_get_preferred_size(gParts->comboBoxArrowWidget, &arrow_req, NULL);
+            if (direction == GTK_TEXT_DIR_RTL)
+                *left += separator_width + arrow_req.width;
+            else
+                *right += separator_width + arrow_req.width;
+
+            return MOZ_GTK_SUCCESS;
+        }
+    case MOZ_GTK_PROGRESSBAR:
+        ensure_progress_widget();
+        w = gParts->progresWidget;
+        break;
+    case MOZ_GTK_SCALE_HORIZONTAL:
+        ensure_scale_widget();
+        w = gParts->hScaleWidget;
+        break;
+    case MOZ_GTK_SCALE_VERTICAL:
+        ensure_scale_widget();
+        w = gParts->vScaleWidget;
+        break;
+    /* These widgets have no borders, since they are not containers. */
+    case MOZ_GTK_CHECKBUTTON:
+    case MOZ_GTK_RADIOBUTTON:
+    case MOZ_GTK_SCROLLBAR_BUTTON:
+    case MOZ_GTK_SCROLLBAR_TRACK_HORIZONTAL:
+    case MOZ_GTK_SCROLLBAR_TRACK_VERTICAL:
+    case MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL:
+    case MOZ_GTK_SCROLLBAR_THUMB_VERTICAL:
+    case MOZ_GTK_SCALE_THUMB_HORIZONTAL:
+    case MOZ_GTK_SCALE_THUMB_VERTICAL:
+    case MOZ_GTK_PROGRESS_CHUNK:
+        *left = *top = *right = *bottom = 0;
+        return MOZ_GTK_SUCCESS;
+    default:
+        g_warning("Unsupported widget type: %d", widget);
+        return MOZ_GTK_UNKNOWN_WIDGET;
+    }
+
+    style = gtk_widget_get_style(w);
+    *right = *left = XTHICKNESS(style);
+    *bottom = *top = YTHICKNESS(style);
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_get_scalethumb_metrics(GtkOrientation orient, gint* thumb_length, gint* thumb_height)
+{
+  GtkWidget* widget;
+
+  ensure_scale_widget();
+  widget = ((orient == GTK_ORIENTATION_HORIZONTAL) ? gParts->hScaleWidget : gParts->vScaleWidget);
+
+  gtk_widget_style_get (widget,
+                        "slider_length", thumb_length,
+                        "slider_width", thumb_height,
+                        NULL);
+
+  return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_get_scrollbar_metrics(MozGtkScrollbarMetrics *metrics)
+{
+    ensure_scrollbar_widget();
+
+    gtk_widget_style_get (gParts->horizScrollbarWidget,
+                          "slider_width", &metrics->slider_width,
+                          "trough_border", &metrics->trough_border,
+                          "stepper_size", &metrics->stepper_size,
+                          "stepper_spacing", &metrics->stepper_spacing,
+                          "trough_under_steppers", &metrics->trough_under_steppers,
+                          "has_secondary_forward_stepper", &metrics->has_secondary_forward_stepper,
+                          "has_secondary_backward_stepper", &metrics->has_secondary_backward_stepper,
+                          NULL);
+
+    metrics->min_slider_size = gtk_range_get_min_slider_size(GTK_RANGE(gParts->horizScrollbarWidget));
+
+    return MOZ_GTK_SUCCESS;
+}
+
+gint
+moz_gtk_widget_paint(GtkThemeWidgetType widget, cairo_t* cr,
+                     GdkRectangle* rect, GtkWidgetState* state,
+                     gint flags, GtkTextDirection direction)
+{
+    switch (widget) {
+    case MOZ_GTK_BUTTON:
+        if (state->depressed) {
+            ensure_toggle_button_widget();
+            return moz_gtk_button_paint(cr, rect, state,
+                                        (GtkReliefStyle) flags,
+                                        gParts->toggleButtonWidget, direction);
+        }
+        ensure_button_widget();
+        return moz_gtk_button_paint(cr, rect, state,
+                                    (GtkReliefStyle) flags, gParts->buttonWidget,
+                                    direction);
+        break;
+    case MOZ_GTK_CHECKBUTTON:
+    case MOZ_GTK_RADIOBUTTON:
+        return moz_gtk_toggle_paint(cr, rect, state,
+                                    !!(flags & MOZ_GTK_WIDGET_CHECKED),
+                                    !!(flags & MOZ_GTK_WIDGET_INCONSISTENT),
+                                    (widget == MOZ_GTK_RADIOBUTTON),
+                                    direction);
+        break;
+    case MOZ_GTK_SCROLLBAR_BUTTON:
+        return moz_gtk_scrollbar_button_paint(cr, rect, state,
+                                              (GtkScrollbarButtonFlags) flags,
+                                              direction);
+        break;
+    case MOZ_GTK_SCROLLBAR_TRACK_HORIZONTAL:
+    case MOZ_GTK_SCROLLBAR_TRACK_VERTICAL:
+        return moz_gtk_scrollbar_trough_paint(widget, cr, rect,
+                                              state, direction);
+        break;
+    case MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL:
+    case MOZ_GTK_SCROLLBAR_THUMB_VERTICAL:
+        return moz_gtk_scrollbar_thumb_paint(widget, cr, rect,
+                                             state, direction);
+        break;
+    case MOZ_GTK_SCROLLED_WINDOW:
+        return moz_gtk_scrolled_window_paint(cr, rect, state);
+        break;
+    case MOZ_GTK_SCALE_HORIZONTAL:
+    case MOZ_GTK_SCALE_VERTICAL:
+        return moz_gtk_scale_paint(cr, rect, state,
+                                   (GtkOrientation) flags, direction);
+        break;
+    case MOZ_GTK_SCALE_THUMB_HORIZONTAL:
+    case MOZ_GTK_SCALE_THUMB_VERTICAL:
+        return moz_gtk_scale_thumb_paint(cr, rect, state,
+                                         (GtkOrientation) flags, direction);
+        break;
+    case MOZ_GTK_ENTRY:
+        ensure_entry_widget();
+        return moz_gtk_entry_paint(cr, rect, state,
+                                   gParts->entryWidget, direction);
+        break;
+    case MOZ_GTK_DROPDOWN:
+        return moz_gtk_combo_box_paint(cr, rect, state,
+                                       (gboolean) flags, direction);
+        break;
+    case MOZ_GTK_PROGRESSBAR:
+        return moz_gtk_progressbar_paint(cr, rect, direction);
+        break;
+    case MOZ_GTK_PROGRESS_CHUNK:
+        return moz_gtk_progress_chunk_paint(cr, rect, direction);
+        break;
+    default:
+        g_warning("Unknown widget type: %d", widget);
+    }
+
+    return MOZ_GTK_UNKNOWN_WIDGET;
+}
+
+GtkWidget* moz_gtk_get_scrollbar_widget(void)
+{
+    if (!is_initialized)
+        return NULL;
+    ensure_scrollbar_widget();
+    return gParts->horizScrollbarWidget;
+}
+
+gint
+moz_gtk_shutdown()
+{
+    GtkWidgetClass *entry_class;
+    entry_class = g_type_class_peek(GTK_TYPE_ENTRY);
+    g_type_class_unref(entry_class);
+
+    is_initialized = FALSE;
+
+    return MOZ_GTK_SUCCESS;
+}
+
+void moz_gtk_destroy_theme_parts_widgets(GtkThemeParts* parts)
+{
+    if (!parts)
+        return;
+
+    if (parts->protoWindow) {
+        gtk_widget_destroy(parts->protoWindow);
+        parts->protoWindow = NULL;
+    }
+}
+
+GtkWidget* moz_gtk_get_progress_widget()
+{
+    if (!is_initialized)
+        return NULL;
+    ensure_progress_widget();
+    return gParts->progresWidget;
+}
+
+#endif // GTK_API_VERSION_2
diff --git a/WebCore/platform/gtk/gtkdrawing.h b/WebCore/platform/gtk/gtkdrawing.h
index fd3e8f3..a981543 100644
--- a/WebCore/platform/gtk/gtkdrawing.h
+++ b/WebCore/platform/gtk/gtkdrawing.h
@@ -81,7 +81,9 @@ typedef struct {
 } MozGtkScrollbarMetrics;
 
 typedef struct _GtkThemeParts {
+#ifdef GTK_API_VERSION_2
     GdkColormap* colormap;
+#endif // GTK_API_VERSION_2
     GtkWidget* protoWindow;
     GtkWidget* protoLayout;
     GtkWidget* buttonWidget;
@@ -211,12 +213,18 @@ void moz_gtk_destroy_theme_parts_widgets(GtkThemeParts* parts);
  * flags:     widget-dependant flags; see the GtkThemeWidgetType definition.
  * direction: the text direction, to draw the widget correctly LTR and RTL.
  */
+#ifdef GTK_API_VERSION_2
 gint
 moz_gtk_widget_paint(GtkThemeWidgetType widget, GdkDrawable* drawable,
                      GdkRectangle* rect, GdkRectangle* cliprect,
                      GtkWidgetState* state, gint flags,
                      GtkTextDirection direction);
-
+#else
+gint
+moz_gtk_widget_paint(GtkThemeWidgetType widget, cairo_t* cr,
+                     GdkRectangle* rect, GtkWidgetState* state,
+                     gint flags, GtkTextDirection direction);
+#endif
 
 /*** Widget metrics ***/
 /**

-- 
WebKit Debian packaging



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