]> Pileus Git - ~andy/gtk/blobdiff - gtk/gtkbutton.c
stylecontext: Do invalidation on first resize container
[~andy/gtk] / gtk / gtkbutton.c
index 71fb865f437f11c3dff75b2c7bc0df9a789a588f..3ac36a71b8d37ddeccc5ee2b95a641466345d1eb 100644 (file)
@@ -12,9 +12,7 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
 
 /**
  * SECTION:gtkbutton
- * @Short_description: A widget that creates a signal when clicked on
+ * @Short_description: A widget that emits a signal when clicked on
  * @Title: GtkButton
  *
- * The #GtkButton widget is generally used to attach a function to that is
+ * The #GtkButton widget is generally used to trigger a callback function that is
  * called when the button is pressed.  The various signals and how to use them
  * are outlined below.
  *
- * The #GtkButton widget can hold any valid child widget.  That is it can hold
- * most any other standard #GtkWidget.  The most commonly used child is the
+ * The #GtkButton widget can hold any valid child widget.  That is, it can hold
+ * almost any other standard #GtkWidget.  The most commonly used child is the
  * #GtkLabel.
  */
 
 #include "gtkmain.h"
 #include "gtkmarshalers.h"
 #include "gtkimage.h"
-#include "gtkhbox.h"
-#include "gtkvbox.h"
+#include "gtkbox.h"
 #include "gtkstock.h"
 #include "gtkiconfactory.h"
 #include "gtkactivatable.h"
 #include "gtksizerequest.h"
+#include "gtktypebuiltins.h"
 #include "gtkprivate.h"
 #include "gtkintl.h"
-
+#include "a11y/gtkbuttonaccessible.h"
+#include "gtkapplicationprivate.h"
+#include "gtkactionhelper.h"
 
 static const GtkBorder default_default_border = { 1, 1, 1, 1 };
 static const GtkBorder default_default_outside_border = { 0, 0, 0, 0 };
-static const GtkBorder default_inner_border = { 1, 1, 1, 1 };
 
 /* Time out before giving up on getting a key release when animating
  * the close button.
@@ -90,6 +89,9 @@ enum {
   PROP_XALIGN,
   PROP_YALIGN,
   PROP_IMAGE_POSITION,
+  PROP_ACTION_NAME,
+  PROP_ACTION_TARGET,
+  PROP_ALWAYS_SHOW_IMAGE,
 
   /* activatable properties */
   PROP_ACTIVATABLE_RELATED_ACTION,
@@ -113,7 +115,7 @@ static void gtk_button_realize (GtkWidget * widget);
 static void gtk_button_unrealize (GtkWidget * widget);
 static void gtk_button_map (GtkWidget * widget);
 static void gtk_button_unmap (GtkWidget * widget);
-static void gtk_button_style_set (GtkWidget * widget, GtkStyle * prev_style);
+static void gtk_button_style_updated (GtkWidget * widget);
 static void gtk_button_size_allocate (GtkWidget * widget,
                                      GtkAllocation * allocation);
 static gint gtk_button_draw (GtkWidget * widget, cairo_t *cr);
@@ -121,6 +123,8 @@ static gint gtk_button_button_press (GtkWidget * widget,
                                     GdkEventButton * event);
 static gint gtk_button_button_release (GtkWidget * widget,
                                       GdkEventButton * event);
+static gboolean gtk_button_touch (GtkWidget     *widget,
+                                  GdkEventTouch *event);
 static gint gtk_button_grab_broken (GtkWidget * widget,
                                    GdkEventGrabBroken * event);
 static gint gtk_button_key_release (GtkWidget * widget, GdkEventKey * event);
@@ -148,7 +152,7 @@ static void gtk_button_state_changed   (GtkWidget             *widget,
 static void gtk_button_grab_notify     (GtkWidget             *widget,
                                        gboolean               was_grabbed);
 
-
+static void gtk_button_actionable_iface_init     (GtkActionableInterface *iface);
 static void gtk_button_activatable_interface_init(GtkActivatableIface  *iface);
 static void gtk_button_update                    (GtkActivatable       *activatable,
                                                  GtkAction            *action,
@@ -170,6 +174,7 @@ static void gtk_button_get_preferred_height      (GtkWidget           *widget,
 static guint button_signals[LAST_SIGNAL] = { 0 };
 
 G_DEFINE_TYPE_WITH_CODE (GtkButton, gtk_button, GTK_TYPE_BIN,
+                         G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIONABLE, gtk_button_actionable_iface_init)
                         G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIVATABLE,
                                                gtk_button_activatable_interface_init))
 
@@ -197,11 +202,12 @@ gtk_button_class_init (GtkButtonClass *klass)
   widget_class->unrealize = gtk_button_unrealize;
   widget_class->map = gtk_button_map;
   widget_class->unmap = gtk_button_unmap;
-  widget_class->style_set = gtk_button_style_set;
+  widget_class->style_updated = gtk_button_style_updated;
   widget_class->size_allocate = gtk_button_size_allocate;
   widget_class->draw = gtk_button_draw;
   widget_class->button_press_event = gtk_button_button_press;
   widget_class->button_release_event = gtk_button_button_release;
+  widget_class->touch_event = gtk_button_touch;
   widget_class->grab_broken_event = gtk_button_grab_broken;
   widget_class->key_release_event = gtk_button_key_release;
   widget_class->enter_notify_event = gtk_button_enter_notify;
@@ -265,7 +271,7 @@ gtk_button_class_init (GtkButtonClass *klass)
    * GtkButton:xalign:
    *
    * If the child of the button is a #GtkMisc or #GtkAlignment, this property 
-   * can be used to control it's horizontal alignment. 0.0 is left aligned, 
+   * can be used to control its horizontal alignment. 0.0 is left aligned, 
    * 1.0 is right aligned.
    *
    * Since: 2.4
@@ -284,7 +290,7 @@ gtk_button_class_init (GtkButtonClass *klass)
    * GtkButton:yalign:
    *
    * If the child of the button is a #GtkMisc or #GtkAlignment, this property 
-   * can be used to control it's vertical alignment. 0.0 is top aligned, 
+   * can be used to control its vertical alignment. 0.0 is top aligned, 
    * 1.0 is bottom aligned.
    *
    * Since: 2.4
@@ -300,7 +306,7 @@ gtk_button_class_init (GtkButtonClass *klass)
                                                       GTK_PARAM_READWRITE));
 
   /**
-   * GtkButton::image:
+   * GtkButton:image:
    *
    * The child widget to appear next to the button text.
    *
@@ -330,6 +336,28 @@ gtk_button_class_init (GtkButtonClass *klass)
                                                       GTK_POS_LEFT,
                                                       GTK_PARAM_READWRITE));
 
+  /**
+   * GtkButton:always-show-image:
+   *
+   * If %TRUE, the button will ignore the #GtkSettings:gtk-button-images
+   * setting and always show the image, if available.
+   *
+   * Use this property if the button would be useless or hard to use
+   * without the image.
+   *
+   * Since: 3.6
+   */
+  g_object_class_install_property (gobject_class,
+                                   PROP_ALWAYS_SHOW_IMAGE,
+                                   g_param_spec_boolean ("always-show-image",
+                                                         P_("Always show image"),
+                                                         P_("Whether the image will always be shown"),
+                                                         FALSE,
+                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+
+  g_object_class_override_property (gobject_class, PROP_ACTION_NAME, "action-name");
+  g_object_class_override_property (gobject_class, PROP_ACTION_TARGET, "action-target");
+
   g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_RELATED_ACTION, "related-action");
   g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_USE_ACTION_APPEARANCE, "use-action-appearance");
 
@@ -502,6 +530,9 @@ gtk_button_class_init (GtkButtonClass *klass)
    * Sets the border between the button edges and child.
    *
    * Since: 2.10
+   *
+   * Deprecated: 3.4: Use the standard border and padding CSS properties;
+   *   the value of this style property is ignored.
    */
   gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_boxed ("inner-border",
@@ -527,12 +558,15 @@ gtk_button_class_init (GtkButtonClass *klass)
                                                             GTK_PARAM_READABLE));
 
   g_type_class_add_private (gobject_class, sizeof (GtkButtonPrivate));
+
+  gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_BUTTON_ACCESSIBLE);
 }
 
 static void
 gtk_button_init (GtkButton *button)
 {
   GtkButtonPrivate *priv;
+  GtkStyleContext *context;
 
   button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
                                               GTK_TYPE_BUTTON,
@@ -561,6 +595,9 @@ gtk_button_init (GtkButton *button)
   priv->image_is_stock = TRUE;
   priv->image_position = GTK_POS_LEFT;
   priv->use_action_appearance = TRUE;
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (button));
+  gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
 }
 
 static void
@@ -657,6 +694,8 @@ gtk_button_dispose (GObject *object)
   GtkButton *button = GTK_BUTTON (object);
   GtkButtonPrivate *priv = button->priv;
 
+  g_clear_object (&priv->action_helper);
+
   if (priv->action)
     {
       gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (button), NULL);
@@ -665,6 +704,36 @@ gtk_button_dispose (GObject *object)
   G_OBJECT_CLASS (gtk_button_parent_class)->dispose (object);
 }
 
+static void
+gtk_button_set_action_name (GtkActionable *actionable,
+                            const gchar   *action_name)
+{
+  GtkButton *button = GTK_BUTTON (actionable);
+
+  g_return_if_fail (button->priv->action == NULL);
+
+  if (!button->priv->action_helper)
+    button->priv->action_helper = gtk_action_helper_new (actionable);
+
+  g_signal_handlers_disconnect_by_func (button, gtk_real_button_clicked, NULL);
+  if (action_name)
+    g_signal_connect_after (button, "clicked", G_CALLBACK (gtk_real_button_clicked), NULL);
+
+  gtk_action_helper_set_action_name (button->priv->action_helper, action_name);
+}
+
+static void
+gtk_button_set_action_target_value (GtkActionable *actionable,
+                                    GVariant      *action_target)
+{
+  GtkButton *button = GTK_BUTTON (actionable);
+
+  if (!button->priv->action_helper)
+    button->priv->action_helper = gtk_action_helper_new (actionable);
+
+  gtk_action_helper_set_action_target_value (button->priv->action_helper, action_target);
+}
+
 static void
 gtk_button_set_property (GObject         *object,
                          guint            prop_id,
@@ -682,6 +751,9 @@ gtk_button_set_property (GObject         *object,
     case PROP_IMAGE:
       gtk_button_set_image (button, (GtkWidget *) g_value_get_object (value));
       break;
+    case PROP_ALWAYS_SHOW_IMAGE:
+      gtk_button_set_always_show_image (button, g_value_get_boolean (value));
+      break;
     case PROP_RELIEF:
       gtk_button_set_relief (button, g_value_get_enum (value));
       break;
@@ -709,6 +781,12 @@ gtk_button_set_property (GObject         *object,
     case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
       gtk_button_set_use_action_appearance (button, g_value_get_boolean (value));
       break;
+    case PROP_ACTION_NAME:
+      gtk_button_set_action_name (GTK_ACTIONABLE (button), g_value_get_string (value));
+      break;
+    case PROP_ACTION_TARGET:
+      gtk_button_set_action_target_value (GTK_ACTIONABLE (button), g_value_get_variant (value));
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -732,6 +810,9 @@ gtk_button_get_property (GObject         *object,
     case PROP_IMAGE:
       g_value_set_object (value, (GObject *)priv->image);
       break;
+    case PROP_ALWAYS_SHOW_IMAGE:
+      g_value_set_boolean (value, gtk_button_get_always_show_image (button));
+      break;
     case PROP_RELIEF:
       g_value_set_enum (value, priv->relief);
       break;
@@ -759,12 +840,43 @@ gtk_button_get_property (GObject         *object,
     case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
       g_value_set_boolean (value, priv->use_action_appearance);
       break;
+    case PROP_ACTION_NAME:
+      g_value_set_string (value, gtk_action_helper_get_action_name (priv->action_helper));
+      break;
+    case PROP_ACTION_TARGET:
+      g_value_set_variant (value, gtk_action_helper_get_action_target_value (priv->action_helper));
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
     }
 }
 
+static const gchar *
+gtk_button_get_action_name (GtkActionable *actionable)
+{
+  GtkButton *button = GTK_BUTTON (actionable);
+
+  return gtk_action_helper_get_action_name (button->priv->action_helper);
+}
+
+static GVariant *
+gtk_button_get_action_target_value (GtkActionable *actionable)
+{
+  GtkButton *button = GTK_BUTTON (actionable);
+
+  return gtk_action_helper_get_action_target_value (button->priv->action_helper);
+}
+
+static void
+gtk_button_actionable_iface_init (GtkActionableInterface *iface)
+{
+  iface->get_action_name = gtk_button_get_action_name;
+  iface->set_action_name = gtk_button_set_action_name;
+  iface->get_action_target_value = gtk_button_get_action_target_value;
+  iface->set_action_target_value = gtk_button_set_action_target_value;
+}
+
 static void 
 gtk_button_activatable_interface_init (GtkActivatableIface  *iface)
 {
@@ -891,6 +1003,9 @@ gtk_button_sync_action_properties (GtkActivatable *activatable,
       activatable_update_gicon (GTK_BUTTON (activatable), action);
       activatable_update_icon_name (GTK_BUTTON (activatable), action);
     }
+
+  gtk_button_set_always_show_image (button,
+                                    gtk_action_get_always_show_image (action));
 }
 
 static void
@@ -899,6 +1014,8 @@ gtk_button_set_related_action (GtkButton *button,
 {
   GtkButtonPrivate *priv = button->priv;
 
+  g_return_if_fail (gtk_action_helper_get_action_name (button->priv->action_helper) == NULL);
+
   if (priv->action == action)
     return;
 
@@ -950,7 +1067,7 @@ show_image (GtkButton *button)
   GtkButtonPrivate *priv = button->priv;
   gboolean show;
 
-  if (priv->label_text)
+  if (priv->label_text && !priv->always_show_image)
     {
       GtkSettings *settings;
 
@@ -963,10 +1080,12 @@ show_image (GtkButton *button)
   return show;
 }
 
+
 static void
 gtk_button_construct_child (GtkButton *button)
 {
   GtkButtonPrivate *priv = button->priv;
+  GtkStyleContext *context;
   GtkStockItem item;
   GtkWidget *child;
   GtkWidget *label;
@@ -982,9 +1101,11 @@ gtk_button_construct_child (GtkButton *button)
   if (!priv->label_text && !priv->image)
     return;
 
-  gtk_widget_style_get (GTK_WIDGET (button),
-                       "image-spacing", &image_spacing,
-                       NULL);
+  context = gtk_widget_get_style_context (GTK_WIDGET (button));
+
+  gtk_style_context_get_style (context,
+                               "image-spacing", &image_spacing,
+                               NULL);
 
   if (priv->image && !priv->image_is_stock)
     {
@@ -1125,14 +1246,15 @@ gtk_button_new_from_stock (const gchar *stock_id)
  * gtk_button_new_with_mnemonic:
  * @label: The text of the button, with an underscore in front of the
  *         mnemonic character
- * @returns: a new #GtkButton
  *
  * Creates a new #GtkButton containing a label.
  * If characters in @label are preceded by an underscore, they are underlined.
- * If you need a literal underscore character in a label, use '__' (two 
- * underscores). The first underlined character represents a keyboard 
+ * If you need a literal underscore character in a label, use '__' (two
+ * underscores). The first underlined character represents a keyboard
  * accelerator called a mnemonic.
  * Pressing Alt and that key activates the button.
+ *
+ * Returns: a new #GtkButton
  **/
 GtkWidget*
 gtk_button_new_with_mnemonic (const gchar *label)
@@ -1285,9 +1407,10 @@ gtk_button_realize (GtkWidget *widget)
   attributes.wclass = GDK_INPUT_ONLY;
   attributes.event_mask = gtk_widget_get_events (widget);
   attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
-                           GDK_BUTTON_RELEASE_MASK |
-                           GDK_ENTER_NOTIFY_MASK |
-                           GDK_LEAVE_NOTIFY_MASK);
+                            GDK_BUTTON_RELEASE_MASK |
+                            GDK_TOUCH_MASK |
+                            GDK_ENTER_NOTIFY_MASK |
+                            GDK_LEAVE_NOTIFY_MASK);
 
   attributes_mask = GDK_WA_X | GDK_WA_Y;
 
@@ -1297,9 +1420,7 @@ gtk_button_realize (GtkWidget *widget)
 
   priv->event_window = gdk_window_new (window,
                                        &attributes, attributes_mask);
-  gdk_window_set_user_data (priv->event_window, button);
-
-  gtk_widget_style_attach (widget);
+  gtk_widget_register_window (widget, priv->event_window);
 }
 
 static void
@@ -1313,7 +1434,7 @@ gtk_button_unrealize (GtkWidget *widget)
 
   if (priv->event_window)
     {
-      gdk_window_set_user_data (priv->event_window, NULL);
+      gtk_widget_unregister_window (widget, priv->event_window);
       gdk_window_destroy (priv->event_window);
       priv->event_window = NULL;
     }
@@ -1340,13 +1461,17 @@ gtk_button_unmap (GtkWidget *widget)
   GtkButtonPrivate *priv = button->priv;
 
   if (priv->event_window)
-    gdk_window_hide (priv->event_window);
+    {
+      gdk_window_hide (priv->event_window);
+      priv->in_button = FALSE;
+    }
 
   GTK_WIDGET_CLASS (gtk_button_parent_class)->unmap (widget);
 }
 
 static void
-gtk_button_update_image_spacing (GtkButton *button)
+gtk_button_update_image_spacing (GtkButton       *button,
+                                 GtkStyleContext *context)
 {
   GtkButtonPrivate *priv = button->priv;
   GtkWidget *child; 
@@ -1365,35 +1490,47 @@ gtk_button_update_image_spacing (GtkButton *button)
       child = gtk_bin_get_child (GTK_BIN (child));
       if (GTK_IS_BOX (child))
         {
-          gtk_widget_style_get (GTK_WIDGET (button),
-                                "image-spacing", &spacing,
-                                NULL);
+          gtk_style_context_get_style (context,
+                                       "image-spacing", &spacing,
+                                       NULL);
 
           gtk_box_set_spacing (GTK_BOX (child), spacing);
         }
-    }   
+    }
 }
 
 static void
-gtk_button_style_set (GtkWidget *widget,
-                     GtkStyle  *prev_style)
+gtk_button_style_updated (GtkWidget *widget)
 {
-  gtk_button_update_image_spacing (GTK_BUTTON (widget));
+  GtkStyleContext *context;
+
+  GTK_WIDGET_CLASS (gtk_button_parent_class)->style_updated (widget);
+
+  context = gtk_widget_get_style_context (widget);
+
+  gtk_button_update_image_spacing (GTK_BUTTON (widget), context);
 }
 
 static void
 gtk_button_get_props (GtkButton *button,
                      GtkBorder *default_border,
                      GtkBorder *default_outside_border,
-                      GtkBorder *inner_border,
+                      GtkBorder *padding,
+                      GtkBorder *border,
                      gboolean  *interior_focus)
 {
-  GtkWidget *widget =  GTK_WIDGET (button);
+  GtkStyleContext *context;
+  GtkStateFlags state;
   GtkBorder *tmp_border;
 
+  context = gtk_widget_get_style_context (GTK_WIDGET (button));
+  state = gtk_style_context_get_state (context);
+
   if (default_border)
     {
-      gtk_widget_style_get (widget, "default-border", &tmp_border, NULL);
+      gtk_style_context_get_style (context,
+                                   "default-border", &tmp_border,
+                                   NULL);
 
       if (tmp_border)
        {
@@ -1406,7 +1543,9 @@ gtk_button_get_props (GtkButton *button,
 
   if (default_outside_border)
     {
-      gtk_widget_style_get (widget, "default-outside-border", &tmp_border, NULL);
+      gtk_style_context_get_style (context,
+                                   "default-outside-border", &tmp_border,
+                                   NULL);
 
       if (tmp_border)
        {
@@ -1417,21 +1556,18 @@ gtk_button_get_props (GtkButton *button,
        *default_outside_border = default_default_outside_border;
     }
 
-  if (inner_border)
+  if (interior_focus)
     {
-      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;
+      gtk_style_context_get_style (context,
+                                   "interior-focus", interior_focus,
+                                   NULL);
     }
 
-  if (interior_focus)
-    gtk_widget_style_get (widget, "interior-focus", interior_focus, NULL);
+  if (padding)
+    gtk_style_context_get_padding (context, state, padding);
+
+  if (border)
+    gtk_style_context_get_border (context, state, border);
 }
 
 static void
@@ -1441,24 +1577,22 @@ gtk_button_size_allocate (GtkWidget     *widget,
   GtkButton *button = GTK_BUTTON (widget);
   GtkButtonPrivate *priv = button->priv;
   GtkAllocation child_allocation;
-  GtkStyle *style;
+  GtkStyleContext *context;
   GtkWidget *child;
-
-  gint xthickness, ythickness;
   GtkBorder default_border;
-  GtkBorder inner_border;
+  GtkBorder padding;
+  GtkBorder border;
   gint focus_width;
   gint focus_pad;
 
-  style = gtk_widget_get_style (widget);
-  xthickness = style->xthickness;
-  ythickness = style->ythickness;
+  context = gtk_widget_get_style_context (widget);
 
-  gtk_button_get_props (button, &default_border, NULL, &inner_border, NULL);
-  gtk_widget_style_get (GTK_WIDGET (widget),
-                       "focus-line-width", &focus_width,
-                       "focus-padding", &focus_pad,
-                       NULL);
+  gtk_button_get_props (button, &default_border, NULL,
+                        &padding, &border, NULL);
+  gtk_style_context_get_style (context,
+                              "focus-line-width", &focus_width,
+                              "focus-padding", &focus_pad,
+                              NULL);
 
   gtk_widget_set_allocation (widget, allocation);
 
@@ -1472,20 +1606,18 @@ gtk_button_size_allocate (GtkWidget     *widget,
   child = gtk_bin_get_child (GTK_BIN (button));
   if (child && gtk_widget_get_visible (child))
     {
-      child_allocation.x = allocation->x + inner_border.left + xthickness;
-      child_allocation.y = allocation->y + inner_border.top + ythickness;
+      child_allocation.x = allocation->x + padding.left + border.left;
+      child_allocation.y = allocation->y + padding.top + border.top;
 
       child_allocation.width =
        allocation->width -
-       xthickness * 2 -
-       inner_border.left -
-       inner_border.right;
+        (padding.left + padding.right) -
+       (border.left + border.right);
 
       child_allocation.height = 
        allocation->height -
-       ythickness * 2 -
-       inner_border.top -
-       inner_border.bottom;
+        (padding.top + padding.bottom) -
+        (border.top + border.bottom);
 
       if (gtk_widget_get_can_default (GTK_WIDGET (button)))
        {
@@ -1507,11 +1639,11 @@ gtk_button_size_allocate (GtkWidget     *widget,
        {
          gint child_displacement_x;
          gint child_displacement_y;
-         
-         gtk_widget_style_get (widget,
-                               "child-displacement-x", &child_displacement_x, 
-                               "child-displacement-y", &child_displacement_y,
-                               NULL);
+
+          gtk_style_context_get_style (context,
+                                       "child-displacement-x", &child_displacement_x,
+                                       "child-displacement-y", &child_displacement_y,
+                                       NULL);
          child_allocation.x += child_displacement_x;
          child_allocation.y += child_displacement_y;
        }
@@ -1523,18 +1655,12 @@ gtk_button_size_allocate (GtkWidget     *widget,
     }
 }
 
-void
-_gtk_button_paint (GtkButton          *button,
-                  cairo_t            *cr,
-                   int                 width,
-                   int                 height,
-                  GtkStateType        state_type,
-                  GtkShadowType       shadow_type,
-                  const gchar        *main_detail,
-                  const gchar        *default_detail)
+static gboolean
+gtk_button_draw (GtkWidget *widget,
+                cairo_t   *cr)
 {
+  GtkButton *button = GTK_BUTTON (widget);
   GtkButtonPrivate *priv = button->priv;
-  GtkWidget *widget;
   gint x, y;
   GtkBorder default_border;
   GtkBorder default_outside_border;
@@ -1542,32 +1668,30 @@ _gtk_button_paint (GtkButton          *button,
   gint focus_width;
   gint focus_pad;
   GtkAllocation allocation;
-  GdkWindow *window;
-  GtkStyle *style;
+  GtkStyleContext *context;
+  GtkStateFlags state;
+  gboolean draw_focus;
+  gint width, height;
 
-  widget = GTK_WIDGET (button);
+  context = gtk_widget_get_style_context (widget);
+  state = gtk_style_context_get_state (context);
 
-  gtk_button_get_props (button, &default_border, &default_outside_border, NULL, &interior_focus);
-  gtk_widget_style_get (widget,
-                        "focus-line-width", &focus_width,
-                        "focus-padding", &focus_pad,
-                        NULL); 
+  gtk_button_get_props (button, &default_border, &default_outside_border, NULL, NULL, &interior_focus);
+  gtk_style_context_get_style (context,
+                               "focus-line-width", &focus_width,
+                               "focus-padding", &focus_pad,
+                               NULL);
 
   gtk_widget_get_allocation (widget, &allocation);
-  style = gtk_widget_get_style (widget);
-  window = gtk_widget_get_window (widget);
 
   x = 0;
   y = 0;
+  width = allocation.width;
+  height = allocation.height;
 
   if (gtk_widget_has_default (widget) &&
       priv->relief == GTK_RELIEF_NORMAL)
     {
-      gtk_paint_box (style, cr,
-                     GTK_STATE_NORMAL, GTK_SHADOW_IN,
-                     widget, "buttondefault",
-                     x, y, width, height);
-
       x += default_border.left;
       y += default_border.top;
       width -= default_border.left + default_border.right;
@@ -1580,8 +1704,11 @@ _gtk_button_paint (GtkButton          *button,
       width -= default_outside_border.left + default_outside_border.right;
       height -= default_outside_border.top + default_outside_border.bottom;
     }
-   
-  if (!interior_focus && gtk_widget_has_focus (widget))
+
+  draw_focus = gtk_widget_has_visible_focus (widget);
+
+
+  if (!interior_focus && draw_focus)
     {
       x += focus_width + focus_pad;
       y += focus_width + focus_pad;
@@ -1590,30 +1717,34 @@ _gtk_button_paint (GtkButton          *button,
     }
 
   if (priv->relief != GTK_RELIEF_NONE || priv->depressed ||
-      gtk_widget_get_state(widget) == GTK_STATE_PRELIGHT)
-    gtk_paint_box (style, cr,
-                   state_type,
-                   shadow_type, widget, "button",
-                   x, y, width, height);
-   
-  if (gtk_widget_has_focus (widget))
+      state & GTK_STATE_FLAG_PRELIGHT)
+    {
+      gtk_render_background (context, cr,
+                            x, y, width, height);
+      gtk_render_frame (context, cr,
+                       x, y, width, height);
+    }
+
+  if (draw_focus)
     {
       gint child_displacement_x;
       gint child_displacement_y;
       gboolean displace_focus;
-      
-      gtk_widget_style_get (widget,
-                            "child-displacement-y", &child_displacement_y,
-                            "child-displacement-x", &child_displacement_x,
-                            "displace-focus", &displace_focus,
-                            NULL);
+      GtkBorder border;
+
+      gtk_style_context_get_style (context,
+                                   "child-displacement-y", &child_displacement_y,
+                                   "child-displacement-x", &child_displacement_x,
+                                   "displace-focus", &displace_focus,
+                                   NULL);
+      gtk_style_context_get_border (context, state, &border);
 
       if (interior_focus)
         {
-          x += style->xthickness + focus_pad;
-          y += style->ythickness + focus_pad;
-          width -= 2 * (style->xthickness + focus_pad);
-          height -=  2 * (style->ythickness + focus_pad);
+          x += border.left + focus_pad;
+          y += border.top + focus_pad;
+          width -= (2 * focus_pad) + border.left + border.right;
+          height -=  (2 * focus_pad) + border.top + border.bottom;
         }
       else
         {
@@ -1629,26 +1760,8 @@ _gtk_button_paint (GtkButton          *button,
           y += child_displacement_y;
         }
 
-      gtk_paint_focus (style, cr,
-                       gtk_widget_get_state (widget),
-                       widget, "button",
-                       x, y, width, height);
+      gtk_render_focus (context, cr, x, y, width, height);
     }
-}
-
-static gboolean
-gtk_button_draw (GtkWidget *widget,
-                cairo_t   *cr)
-{
-  GtkButton *button = GTK_BUTTON (widget);
-  GtkButtonPrivate *priv = button->priv;
-
-  _gtk_button_paint (button, cr, 
-                     gtk_widget_get_allocated_width (widget),
-                     gtk_widget_get_allocated_height (widget),
-                     gtk_widget_get_state (widget),
-                     priv->depressed ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
-                     "button", "buttondefault");
 
   GTK_WIDGET_CLASS (gtk_button_parent_class)->draw (widget, cr);
 
@@ -1670,8 +1783,8 @@ gtk_button_button_press (GtkWidget      *widget,
       if (priv->focus_on_click && !gtk_widget_has_focus (widget))
        gtk_widget_grab_focus (widget);
 
-      if (event->button == 1)
-       gtk_button_pressed (button);
+      if (event->button == GDK_BUTTON_PRIMARY)
+        g_signal_emit (button, button_signals[PRESSED], 0);
     }
 
   return TRUE;
@@ -1683,10 +1796,32 @@ gtk_button_button_release (GtkWidget      *widget,
 {
   GtkButton *button;
 
-  if (event->button == 1)
+  if (event->button == GDK_BUTTON_PRIMARY)
     {
       button = GTK_BUTTON (widget);
-      gtk_button_released (button);
+      g_signal_emit (button, button_signals[RELEASED], 0);
+    }
+
+  return TRUE;
+}
+
+static gboolean
+gtk_button_touch (GtkWidget     *widget,
+                  GdkEventTouch *event)
+{
+  GtkButton *button = GTK_BUTTON (widget);
+  GtkButtonPrivate *priv = button->priv;
+
+  if (event->type == GDK_TOUCH_BEGIN)
+    {
+      if (priv->focus_on_click && !gtk_widget_has_focus (widget))
+        gtk_widget_grab_focus (widget);
+
+      g_signal_emit (button, button_signals[PRESSED], 0);
+    }
+  else if (event->type == GDK_TOUCH_END)
+    {
+      g_signal_emit (button, button_signals[RELEASED], 0);
     }
 
   return TRUE;
@@ -1705,7 +1840,7 @@ gtk_button_grab_broken (GtkWidget          *widget,
     {
       save_in = priv->in_button;
       priv->in_button = FALSE;
-      gtk_button_released (button);
+      g_signal_emit (button, button_signals[RELEASED], 0);
       if (save_in != priv->in_button)
        {
          priv->in_button = save_in;
@@ -1745,7 +1880,7 @@ gtk_button_enter_notify (GtkWidget        *widget,
       (event->detail != GDK_NOTIFY_INFERIOR))
     {
       priv->in_button = TRUE;
-      gtk_button_enter (button);
+      g_signal_emit (button, button_signals[ENTER], 0);
     }
 
   return FALSE;
@@ -1763,7 +1898,7 @@ gtk_button_leave_notify (GtkWidget        *widget,
       (gtk_widget_get_sensitive (widget)))
     {
       priv->in_button = FALSE;
-      gtk_button_leave (button);
+      g_signal_emit (button, button_signals[LEAVE], 0);
     }
 
   return FALSE;
@@ -1781,6 +1916,40 @@ gtk_real_button_pressed (GtkButton *button)
   gtk_button_update_state (button);
 }
 
+static gboolean
+touch_release_in_button (GtkButton *button)
+{
+  GtkButtonPrivate *priv;
+  gint width, height;
+  GdkEvent *event;
+  gdouble x, y;
+
+  priv = button->priv;
+  event = gtk_get_current_event ();
+
+  if (!event)
+    return FALSE;
+
+  if (event->type != GDK_TOUCH_END ||
+      event->touch.window != priv->event_window)
+    {
+      gdk_event_free (event);
+      return FALSE;
+    }
+
+  gdk_event_get_coords (event, &x, &y);
+  width = gdk_window_get_width (priv->event_window);
+  height = gdk_window_get_height (priv->event_window);
+
+  gdk_event_free (event);
+
+  if (x >= 0 && x <= width &&
+      y >= 0 && y <= height)
+    return TRUE;
+
+  return FALSE;
+}
+
 static void
 gtk_real_button_released (GtkButton *button)
 {
@@ -1793,7 +1962,8 @@ gtk_real_button_released (GtkButton *button)
       if (priv->activate_timeout)
        return;
 
-      if (priv->in_button)
+      if (priv->in_button ||
+          touch_release_in_button (button))
        gtk_button_clicked (button);
 
       gtk_button_update_state (button);
@@ -1805,6 +1975,9 @@ gtk_real_button_clicked (GtkButton *button)
 {
   GtkButtonPrivate *priv = button->priv;
 
+  if (priv->action_helper)
+    gtk_action_helper_activate (priv->action_helper);
+
   if (priv->action)
     gtk_action_activate (priv->action);
 }
@@ -1830,20 +2003,24 @@ gtk_real_button_activate (GtkButton *button)
   if (device && gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
     device = gdk_device_get_associated_device (device);
 
-  g_return_if_fail (device && gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD);
-
   if (gtk_widget_get_realized (widget) && !priv->activate_timeout)
     {
       time = gtk_get_current_event_time ();
 
-      if (gdk_device_grab (device, priv->event_window,
-                           GDK_OWNERSHIP_WINDOW, TRUE,
-                           GDK_KEY_PRESS | GDK_KEY_RELEASE,
-                           NULL, time) == GDK_GRAB_SUCCESS)
-        {
-          gtk_device_grab_add (widget, device, TRUE);
-         priv->grab_keyboard = device;
-         priv->grab_time = time;
+      /* bgo#626336 - Only grab if we have a device (from an event), not if we
+       * were activated programmatically when no event is available.
+       */
+      if (device && gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
+       {
+         if (gdk_device_grab (device, priv->event_window,
+                              GDK_OWNERSHIP_WINDOW, TRUE,
+                              GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
+                              NULL, time) == GDK_GRAB_SUCCESS)
+           {
+             gtk_device_grab_add (widget, device, TRUE);
+             priv->grab_keyboard = device;
+             priv->grab_time = time;
+           }
        }
 
       priv->activate_timeout = gdk_threads_add_timeout (ACTIVATE_TIMEOUT,
@@ -1889,34 +2066,36 @@ gtk_button_get_size (GtkWidget      *widget,
                     gint           *natural_size)
 {
   GtkButton *button = GTK_BUTTON (widget);
-  GtkStyle *style;
+  GtkStyleContext *context;
   GtkWidget *child;
   GtkBorder default_border;
-  GtkBorder inner_border;
+  GtkBorder padding;
+  GtkBorder border;
   gint focus_width;
   gint focus_pad;
   gint minimum, natural;
 
-  gtk_button_get_props (button, &default_border, NULL, &inner_border, NULL);
-  gtk_widget_style_get (GTK_WIDGET (widget),
-                       "focus-line-width", &focus_width,
-                       "focus-padding", &focus_pad,
-                       NULL);
+  context = gtk_widget_get_style_context (widget);
 
-  style = gtk_widget_get_style (GTK_WIDGET (widget));
+  gtk_button_get_props (button, &default_border, NULL,
+                        &padding, &border, NULL);
+  gtk_style_context_get_style (context,
+                               "focus-line-width", &focus_width,
+                               "focus-padding", &focus_pad,
+                               NULL);
 
   if (orientation == GTK_ORIENTATION_HORIZONTAL)
     {
-      minimum = (style->xthickness * 2 +
-                inner_border.left + inner_border.right);
+      minimum = padding.left + padding.right +
+        border.left + border.right;
 
       if (gtk_widget_get_can_default (GTK_WIDGET (widget)))
        minimum += default_border.left + default_border.right;
     }
   else
     {
-      minimum = (style->ythickness * 2 +
-                inner_border.top + inner_border.bottom);
+      minimum = padding.top + padding.bottom +
+        border.top + border.bottom;
 
       if (gtk_widget_get_can_default (GTK_WIDGET (widget)))
        minimum += default_border.top + default_border.bottom;
@@ -2006,7 +2185,7 @@ gtk_button_set_label (GtkButton   *button,
  * Return value: The text of the label widget. This string is owned
  * by the widget and must not be modified or freed.
  **/
-G_CONST_RETURN gchar *
+const gchar *
 gtk_button_get_label (GtkButton *button)
 {
   g_return_val_if_fail (GTK_IS_BUTTON (button), NULL);
@@ -2201,8 +2380,8 @@ gtk_button_set_alignment (GtkButton *button,
 /**
  * gtk_button_get_alignment:
  * @button: a #GtkButton
- * @xalign: return location for horizontal alignment
- * @yalign: return location for vertical alignment
+ * @xalign: (out): return location for horizontal alignment
+ * @yalign: (out): return location for vertical alignment
  *
  * Gets the alignment of the child in the button.
  *
@@ -2255,7 +2434,7 @@ static void
 gtk_button_update_state (GtkButton *button)
 {
   GtkButtonPrivate *priv = button->priv;
-  GtkStateType new_state;
+  GtkStateFlags new_state;
   gboolean depressed;
 
   if (priv->activate_timeout)
@@ -2263,13 +2442,17 @@ gtk_button_update_state (GtkButton *button)
   else
     depressed = priv->in_button && priv->button_down;
 
-  if (priv->in_button && (!priv->button_down || !depressed))
-    new_state = GTK_STATE_PRELIGHT;
-  else
-    new_state = depressed ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL;
+  new_state = gtk_widget_get_state_flags (GTK_WIDGET (button)) &
+    ~(GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_ACTIVE);
 
-  _gtk_button_set_depressed (button, depressed); 
-  gtk_widget_set_state (GTK_WIDGET (button), new_state);
+  if (priv->in_button)
+    new_state |= GTK_STATE_FLAG_PRELIGHT;
+
+  if (depressed)
+    new_state |= GTK_STATE_FLAG_ACTIVE;
+
+  _gtk_button_set_depressed (button, depressed);
+  gtk_widget_set_state_flags (GTK_WIDGET (button), new_state, TRUE);
 }
 
 static void 
@@ -2498,6 +2681,63 @@ gtk_button_get_image_position (GtkButton *button)
   return button->priv->image_position;
 }
 
+/**
+ * gtk_button_set_always_show_image:
+ * @button: a #GtkButton
+ * @always_show: %TRUE if the menuitem should always show the image
+ *
+ * If %TRUE, the button will ignore the #GtkSettings:gtk-button-images
+ * setting and always show the image, if available.
+ *
+ * Use this property if the button  would be useless or hard to use
+ * without the image.
+ *
+ * Since: 3.6
+ */
+void
+gtk_button_set_always_show_image (GtkButton *button,
+                                  gboolean    always_show)
+{
+  GtkButtonPrivate *priv;
+
+  g_return_if_fail (GTK_IS_BUTTON (button));
+
+  priv = button->priv;
+
+  if (priv->always_show_image != always_show)
+    {
+      priv->always_show_image = always_show;
+
+      if (priv->image)
+        {
+          if (show_image (button))
+            gtk_widget_show (priv->image);
+          else
+            gtk_widget_hide (priv->image);
+        }
+
+      g_object_notify (G_OBJECT (button), "always-show-image");
+    }
+}
+
+/**
+ * gtk_button_get_always_show_image:
+ * @button: a #GtkButton
+ *
+ * Returns whether the button will ignore the #GtkSettings:gtk-button-images
+ * setting and always show the image, if available.
+ *
+ * Returns: %TRUE if the button will always show the image
+ *
+ * Since: 3.6
+ */
+gboolean
+gtk_button_get_always_show_image (GtkButton *button)
+{
+  g_return_val_if_fail (GTK_IS_BUTTON (button), FALSE);
+
+  return button->priv->always_show_image;
+}
 
 /**
  * gtk_button_get_event_window: