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a11y: Only emit signals when cells change; not upon creation

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This is a workaround for atspi-atk behaviour.

atspi-atk uses signal emission hooks. So it to already catches
signal emissions on creation of objects, before anyone could even
think of g_signal_connect()ing.

https://bugzilla.gnome.org/show_bug.cgi?id=746706
This commit is contained in:
Joanmarie Diggs 2015-04-08 20:08:25 -04:00 committed by Benjamin Otte
parent f87b08ddd3
commit 8f644101b9
7 changed files with 29 additions and 17 deletions
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9
gtk/a11y/gtkbooleancellaccessible.c
View File

@ -113,7 +113,8 @@ gtk_boolean_cell_accessible_ref_state_set (AtkObject *accessible)
}
static void
gtk_boolean_cell_accessible_update_cache (GtkCellAccessible *cell)
gtk_boolean_cell_accessible_update_cache (GtkCellAccessible *cell,
gboolean emit_signal)
{
GtkBooleanCellAccessible *boolean_cell = GTK_BOOLEAN_CELL_ACCESSIBLE (cell);
gboolean active;
@ -131,14 +132,16 @@ gtk_boolean_cell_accessible_update_cache (GtkCellAccessible *cell)
{
boolean_cell->priv->cell_value = !boolean_cell->priv->cell_value;
atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_CHECKED, active);
if (emit_signal)
atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_CHECKED, active);
}
if (boolean_cell->priv->cell_sensitive != sensitive)
{
boolean_cell->priv->cell_sensitive = !boolean_cell->priv->cell_sensitive;
atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_SENSITIVE, sensitive);
if (emit_signal)
atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_SENSITIVE, sensitive);
}
}

10
gtk/a11y/gtkcellaccessible.c
View File

@ -419,19 +419,23 @@ _gtk_cell_accessible_state_changed (GtkCellAccessible *cell,
/*
* gtk_cell_accessible_update_cache:
* @cell: the cell that is changed
* @emit_signal: whether or not to notify the ATK bridge
*
* Notifies the cell that the values in the data in the row that
* is used to feed the cell renderer with has changed. The
* cell_changed function of @cell is called to send update
* notifications for the properties it takes from its cell
* renderer.
* renderer. If @emit_signal is TRUE, also notify the ATK bridge
* of the change. The bridge should be notified when an existing
* cell changes; not when a newly-created cell is being set up.
*
* Note that there is no higher granularity available about which
* properties changed, so you will need to make do with this
* function.
**/
void
_gtk_cell_accessible_update_cache (GtkCellAccessible *cell)
_gtk_cell_accessible_update_cache (GtkCellAccessible *cell,
gboolean emit_signal)
{
GtkCellAccessibleClass *klass;
@ -440,5 +444,5 @@ _gtk_cell_accessible_update_cache (GtkCellAccessible *cell)
klass = GTK_CELL_ACCESSIBLE_GET_CLASS (cell);
if (klass->update_cache)
klass->update_cache (cell);
klass->update_cache (cell, emit_signal);
}

3
gtk/a11y/gtkcellaccessible.h
View File

@ -48,7 +48,8 @@ struct _GtkCellAccessible
struct _GtkCellAccessibleClass
{
GtkAccessibleClass parent_class;
void (*update_cache) (GtkCellAccessible *cell);
void (*update_cache) (GtkCellAccessible *cell,
gboolean emit_signal);
};
GDK_AVAILABLE_IN_ALL

3
gtk/a11y/gtkcellaccessibleprivate.h
View File

@ -25,7 +25,8 @@ G_BEGIN_DECLS
void _gtk_cell_accessible_state_changed (GtkCellAccessible *cell,
GtkCellRendererState added,
GtkCellRendererState removed);
void _gtk_cell_accessible_update_cache (GtkCellAccessible *cell);
void _gtk_cell_accessible_update_cache (GtkCellAccessible *cell,
gboolean emit_signal);
void _gtk_cell_accessible_initialize (GtkCellAccessible *cell,
GtkWidget *widget,
AtkObject *parent);

5
gtk/a11y/gtkcontainercellaccessible.c
View File

@ -64,13 +64,14 @@ gtk_container_cell_accessible_ref_child (AtkObject *obj,
}
static void
gtk_container_cell_accessible_update_cache (GtkCellAccessible *cell)
gtk_container_cell_accessible_update_cache (GtkCellAccessible *cell,
gboolean emit_signal)
{
GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (cell);
GList *l;
for (l = container->priv->children; l; l = l->next)
_gtk_cell_accessible_update_cache (l->data);
_gtk_cell_accessible_update_cache (l->data, emit_signal);
}
static void

12
gtk/a11y/gtktextcellaccessible.c
View File

@ -87,7 +87,8 @@ static void add_attr (PangoAttrList *attr_li
/* Misc */
static void gtk_text_cell_accessible_update_cache (GtkCellAccessible *cell);
static void gtk_text_cell_accessible_update_cache (GtkCellAccessible *cell,
gboolean emit_signal);
static void atk_text_interface_init (AtkTextIface *iface);
@ -132,7 +133,8 @@ gtk_text_cell_accessible_get_name (AtkObject *atk_obj)
}
static void
gtk_text_cell_accessible_update_cache (GtkCellAccessible *cell)
gtk_text_cell_accessible_update_cache (GtkCellAccessible *cell,
gboolean emit_signal)
{
GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (cell);
AtkObject *obj = ATK_OBJECT (cell);
@ -154,7 +156,7 @@ gtk_text_cell_accessible_update_cache (GtkCellAccessible *cell)
if (g_strcmp0 (text_cell->priv->cell_text, text) != 0)
{
if (text_cell->priv->cell_length)
if (text_cell->priv->cell_length && emit_signal)
{
g_signal_emit_by_name (cell, "text-changed::delete",
0, text_cell->priv->cell_length);
@ -164,13 +166,13 @@ gtk_text_cell_accessible_update_cache (GtkCellAccessible *cell)
text_cell->priv->cell_text = g_strdup (text);
text_cell->priv->cell_length = text_length;
if (text_length)
if (text_length && emit_signal)
{
g_signal_emit_by_name (cell, "text-changed::insert",
0, text_cell->priv->cell_length);
}
if (obj->name == NULL)
if (obj->name == NULL && emit_signal)
g_object_notify (G_OBJECT (obj), "accessible-name");
}

4
gtk/a11y/gtktreeviewaccessible.c
View File

@ -425,7 +425,7 @@ create_cell (GtkTreeView *treeview,
cell_info_new (accessible, tree, node, column, cell);
set_cell_data (treeview, accessible, cell);
_gtk_cell_accessible_update_cache (cell);
_gtk_cell_accessible_update_cache (cell, FALSE);
return cell;
}
@ -1705,7 +1705,7 @@ _gtk_tree_view_accessible_changed (GtkTreeView *treeview,
continue;
set_cell_data (treeview, accessible, cell);
_gtk_cell_accessible_update_cache (cell);
_gtk_cell_accessible_update_cache (cell, TRUE);
}
g_signal_emit_by_name (accessible, "visible-data-changed");