css: Queue resize for properties that affect clip

This fixes shadows that are animated not updating the clip of the widget
they are drawn on. An example of this are the buttons in the CSS shadows
example in gtk-demo.

Reftest included

5 files changed, 167 insertions, 0 deletions

diff --git a/testsuite/reftests/Makefile.am b/testsuite/reftests/Makefile.am
index 47c4864c97..7479dae2ce 100644
--- a/testsuite/reftests/Makefile.am
+++ b/testsuite/reftests/Makefile.am
@@ -307,6 +307,9 @@ testdata = \
 	label-text-shadow-clipping.css \
 	label-text-shadow-clipping.ref.ui \
 	label-text-shadow-clipping.ui \
+	label-text-shadow-changes-modify-clip.css \
+	label-text-shadow-changes-modify-clip.ref.ui \
+	label-text-shadow-changes-modify-clip.ui \
 	label-width-chars-dont-shrink.ref.ui \
 	label-width-chars-dont-shrink.ui \
 	label-wrap-justify.ref.ui \
@@ -478,6 +481,7 @@ libreftest_la_CFLAGS = $(gtk_reftest_CFLAGS)
 libreftest_la_LIBADD = $(gtk_reftest_LDADD)
 libreftest_la_SOURCES =			\
 	expand-expander.c		\
+	label-text-shadow-changes-modify-clip.c	\
 	set-default-direction.c		\
 	statusbar-remove-all.c		\
 	textview-border-windows.c	\
diff --git a/testsuite/reftests/label-text-shadow-changes-modify-clip.c b/testsuite/reftests/label-text-shadow-changes-modify-clip.c
new file mode 100644
index 0000000000..0507c36c44
--- /dev/null
+++ b/testsuite/reftests/label-text-shadow-changes-modify-clip.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Author:
+ *      Matthias Clasen <mclasen@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gtk/gtk.h>
+
+#include "gtk-reftest.h"
+
+static gboolean 
+tick_callback_for_1_frame (GtkWidget     *widget,
+                           GdkFrameClock *frame_clock,
+                           gpointer       unused)
+{
+  reftest_uninhibit_snapshot ();
+
+  return G_SOURCE_REMOVE;
+}
+
+G_MODULE_EXPORT gboolean
+inhibit_for_1_frame (GtkWidget *widget)
+{
+  reftest_inhibit_snapshot ();
+  gtk_widget_add_tick_callback (widget,
+                                tick_callback_for_1_frame,
+                                NULL, NULL);
+
+  return FALSE;
+}
+
+static gboolean 
+tick_callback_for_2_frames (GtkWidget     *widget,
+                            GdkFrameClock *frame_clock,
+                            gpointer       unused)
+{
+  inhibit_for_1_frame (widget);
+  reftest_uninhibit_snapshot ();
+
+  return G_SOURCE_REMOVE;
+}
+
+G_MODULE_EXPORT gboolean
+inhibit_for_2_frames (GtkWidget *widget)
+{
+  reftest_inhibit_snapshot ();
+  gtk_widget_add_tick_callback (widget,
+                                tick_callback_for_2_frames,
+                                NULL, NULL);
+
+  return FALSE;
+}
+
+static gboolean 
+tick_callback_for_3_frames (GtkWidget     *widget,
+                            GdkFrameClock *frame_clock,
+                            gpointer       unused)
+{
+  inhibit_for_2_frames (widget);
+  reftest_uninhibit_snapshot ();
+
+  return G_SOURCE_REMOVE;
+}
+
+G_MODULE_EXPORT gboolean
+inhibit_for_3_frames (GtkWidget *widget)
+{
+  reftest_inhibit_snapshot ();
+  gtk_widget_add_tick_callback (widget,
+                                tick_callback_for_3_frames,
+                                NULL, NULL);
+
+  return FALSE;
+}
diff --git a/testsuite/reftests/label-text-shadow-changes-modify-clip.css b/testsuite/reftests/label-text-shadow-changes-modify-clip.css
new file mode 100644
index 0000000000..87bd265191
--- /dev/null
+++ b/testsuite/reftests/label-text-shadow-changes-modify-clip.css
@@ -0,0 +1,19 @@
+@import "reset-to-defaults.css";
+
+@keyframes foo {
+  0% { text-shadow: 20px 20px tomato; }
+  100% { text-shadow: 20px 20px tomato; }
+}
+
+GtkLabel {
+  font-size: 40px;
+  animation-name: foo;
+  animation-duration: 100s;
+  animation-timing-function: linear;
+  animation-delay: 1ms;
+}
+
+#reference {
+  animation: initial;
+  text-shadow: 20px 20px tomato;
+}
diff --git a/testsuite/reftests/label-text-shadow-changes-modify-clip.ref.ui b/testsuite/reftests/label-text-shadow-changes-modify-clip.ref.ui
new file mode 100644
index 0000000000..85245c16fe
--- /dev/null
+++ b/testsuite/reftests/label-text-shadow-changes-modify-clip.ref.ui
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.18.1 -->
+<interface>
+  <requires lib="gtk+" version="3.12"/>
+  <object class="GtkWindow" id="window1">
+    <property name="width_request">500</property>
+    <property name="height_request">100</property>
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <child>
+      <object class="GtkLabel" id="label1">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes">Hello World</property>
+        <style>
+          <class name="reference"/>
+        </style>
+      </object>
+    </child>
+  </object>
+</interface>
diff --git a/testsuite/reftests/label-text-shadow-changes-modify-clip.ui b/testsuite/reftests/label-text-shadow-changes-modify-clip.ui
new file mode 100644
index 0000000000..0d029fd0a2
--- /dev/null
+++ b/testsuite/reftests/label-text-shadow-changes-modify-clip.ui
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.18.1 -->
+<interface>
+  <requires lib="gtk+" version="3.12"/>
+  <object class="GtkWindow" id="window1">
+    <property name="width_request">500</property>
+    <property name="height_request">100</property>
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <signal name="map" handler="reftest:inhibit_for_3_frames" swapped="no"/>
+    <child>
+      <object class="GtkBox" id="box2">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="halign">center</property>
+        <property name="valign">center</property>
+        <property name="orientation">vertical</property>
+        <child>
+          <object class="GtkLabel" id="label1">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">Hello World</property>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>