[gtk/gtk-3-24: 2/5] GtkFileChooserWidget: export a11y action "show_location"

[Emmanuele Bassi <ebassi src gnome org>]

commit 50cbb8f9a2436eb4abbaadb88d2bf90e2ae0ca53
Author: Yann Dirson <ydirson free fr>
Date:   Mon Oct 19 20:49:06 2020 +0200

    GtkFileChooserWidget: export a11y action "show_location"
    
    Note that this changes the accessible role of the widget to "file
    chooser" instead of "filler".

 gtk/a11y/Makefile.inc                     |   2 +
 gtk/a11y/gtkfilechooserwidgetaccessible.c | 122 ++++++++++++++++++++++++++++++
 gtk/a11y/gtkfilechooserwidgetaccessible.h |  57 ++++++++++++++
 gtk/a11y/meson.build                      |   2 +
 gtk/gtkfilechooserwidget.c                |   2 +
 5 files changed, 185 insertions(+)
---
diff --git a/gtk/a11y/Makefile.inc b/gtk/a11y/Makefile.inc
index 35c35cfc0d..c116a1f131 100644
--- a/gtk/a11y/Makefile.inc
+++ b/gtk/a11y/Makefile.inc
@@ -11,6 +11,7 @@ a11y_h_sources =                              \
        a11y/gtkcontainercellaccessible.h       \
        a11y/gtkentryaccessible.h               \
        a11y/gtkexpanderaccessible.h            \
+       a11y/gtkfilechooserwidgetaccessible.h   \
        a11y/gtkflowboxaccessible.h             \
        a11y/gtkflowboxchildaccessible.h        \
        a11y/gtkframeaccessible.h               \
@@ -88,6 +89,7 @@ a11y_c_sources =                              \
        a11y/gtkcontainercellaccessible.c       \
        a11y/gtkentryaccessible.c               \
        a11y/gtkexpanderaccessible.c            \
+       a11y/gtkfilechooserwidgetaccessible.c   \
        a11y/gtkflowboxaccessible.c             \
        a11y/gtkflowboxchildaccessible.c        \
        a11y/gtkframeaccessible.c               \
diff --git a/gtk/a11y/gtkfilechooserwidgetaccessible.c b/gtk/a11y/gtkfilechooserwidgetaccessible.c
new file mode 100644
index 0000000000..9f4e362efb
--- /dev/null
+++ b/gtk/a11y/gtkfilechooserwidgetaccessible.c
@@ -0,0 +1,122 @@
+/* GTK+ - accessibility implementations
+ * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser 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
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <gtk/gtk.h>
+#include <glib/gi18n-lib.h>
+#include "gtkfilechooserwidgetaccessible.h"
+
+
+static void atk_action_interface_init (AtkActionIface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (GtkFileChooserWidgetAccessible, gtk_file_chooser_widget_accessible, 
GTK_TYPE_CONTAINER_ACCESSIBLE,
+                         G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init))
+
+static void
+gtk_file_chooser_widget_accessible_initialize (AtkObject *obj,
+                                  gpointer   data)
+{
+  ATK_OBJECT_CLASS (gtk_file_chooser_widget_accessible_parent_class)->initialize (obj, data);
+  obj->role = ATK_ROLE_FILE_CHOOSER;
+}
+
+static void
+gtk_file_chooser_widget_accessible_class_init (GtkFileChooserWidgetAccessibleClass *klass)
+{
+  AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
+  GtkContainerAccessibleClass *container_class = (GtkContainerAccessibleClass*)klass;
+
+  class->initialize = gtk_file_chooser_widget_accessible_initialize;
+
+  container_class->add_gtk = NULL;
+  container_class->remove_gtk = NULL;
+}
+
+static void
+gtk_file_chooser_widget_accessible_init (GtkFileChooserWidgetAccessible *file_chooser_widget)
+{
+}
+
+static gboolean
+gtk_file_chooser_widget_accessible_do_action (AtkAction *action,
+                                   gint       i)
+{
+  GtkWidget *widget;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
+  if (widget == NULL)
+    return FALSE;
+
+  if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_visible (widget))
+    return FALSE;
+
+  switch (i)
+    {
+    case 0:
+      g_signal_emit_by_name (GTK_FILE_CHOOSER_WIDGET (widget), "location-popup", "");
+      return TRUE;
+    default:
+      break;
+    }
+
+  return FALSE;
+}
+
+static gint
+gtk_file_chooser_widget_accessible_get_n_actions (AtkAction *action)
+{
+  return 1;
+}
+
+static const gchar *
+gtk_file_chooser_widget_accessible_action_get_name (AtkAction *action,
+                                       gint       i)
+{
+  if (i == 0)
+    return "show_location";
+  return NULL;
+}
+
+static const gchar *
+gtk_file_chooser_widget_accessible_action_get_localized_name (AtkAction *action,
+                                                 gint       i)
+{
+  if (i == 0)
+    return C_("Action name", "Show location");
+  return NULL;
+}
+
+static const gchar *
+gtk_file_chooser_widget_accessible_action_get_description (AtkAction *action,
+                                              gint       i)
+{
+  if (i == 0)
+    return C_("Action description", "Show the File Chooser's Location text field");
+  return NULL;
+}
+
+static void
+atk_action_interface_init (AtkActionIface *iface)
+{
+  iface->do_action = gtk_file_chooser_widget_accessible_do_action;
+  iface->get_n_actions = gtk_file_chooser_widget_accessible_get_n_actions;
+  iface->get_name = gtk_file_chooser_widget_accessible_action_get_name;
+  iface->get_localized_name = gtk_file_chooser_widget_accessible_action_get_localized_name;
+  iface->get_description = gtk_file_chooser_widget_accessible_action_get_description;
+}
diff --git a/gtk/a11y/gtkfilechooserwidgetaccessible.h b/gtk/a11y/gtkfilechooserwidgetaccessible.h
new file mode 100644
index 0000000000..6310c35921
--- /dev/null
+++ b/gtk/a11y/gtkfilechooserwidgetaccessible.h
@@ -0,0 +1,57 @@
+/* GTK+ - accessibility implementations
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * 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/>.
+ */
+
+#ifndef __GTK_FILE_CHOOSER_WIDGET_ACCESSIBLE_H__
+#define __GTK_FILE_CHOOSER_WIDGET_ACCESSIBLE_H__
+
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
+#include <gtk/a11y/gtkcontaineraccessible.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_FILE_CHOOSER_WIDGET_ACCESSIBLE                     
(gtk_file_chooser_widget_accessible_get_type ())
+#define GTK_FILE_CHOOSER_WIDGET_ACCESSIBLE(obj)                     (G_TYPE_CHECK_INSTANCE_CAST ((obj), 
GTK_TYPE_FILE_CHOOSER_WIDGET_ACCESSIBLE, GtkFileChooserWidgetAccessible))
+#define GTK_FILE_CHOOSER_WIDGET_ACCESSIBLE_CLASS(klass)             (G_TYPE_CHECK_CLASS_CAST ((klass), 
GTK_TYPE_FILE_CHOOSER_WIDGET_ACCESSIBLE, GtkFileChooserWidgetAccessibleClass))
+#define GTK_IS_FILE_CHOOSER_WIDGET_ACCESSIBLE(obj)                  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), 
GTK_TYPE_FILE_CHOOSER_WIDGET_ACCESSIBLE))
+#define GTK_IS_FILE_CHOOSER_WIDGET_ACCESSIBLE_CLASS(klass)          (G_TYPE_CHECK_CLASS_TYPE ((klass), 
GTK_TYPE_FILE_CHOOSER_WIDGET_ACCESSIBLE))
+#define GTK_FILE_CHOOSER_WIDGET_ACCESSIBLE_GET_CLASS(obj)           (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GTK_TYPE_FILE_CHOOSER_WIDGET_ACCESSIBLE, GtkFileChooserWidgetAccessibleClass))
+
+typedef struct _GtkFileChooserWidgetAccessible        GtkFileChooserWidgetAccessible;
+typedef struct _GtkFileChooserWidgetAccessibleClass   GtkFileChooserWidgetAccessibleClass;
+typedef struct _GtkFileChooserWidgetAccessiblePrivate GtkFileChooserWidgetAccessiblePrivate;
+
+struct _GtkFileChooserWidgetAccessible
+{
+  GtkContainerAccessible parent;
+
+  GtkFileChooserWidgetAccessiblePrivate *priv;
+};
+
+struct _GtkFileChooserWidgetAccessibleClass
+{
+  GtkContainerAccessibleClass parent_class;
+};
+
+GDK_AVAILABLE_IN_ALL
+GType gtk_file_chooser_widget_accessible_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GTK_FILE_CHOOSER_WIDGET_ACCESSIBLE_H__ */
diff --git a/gtk/a11y/meson.build b/gtk/a11y/meson.build
index a250319c77..8c615c84cf 100644
--- a/gtk/a11y/meson.build
+++ b/gtk/a11y/meson.build
@@ -14,6 +14,7 @@ a11y_sources = files(
   'gtkcontainercellaccessible.c',
   'gtkentryaccessible.c',
   'gtkexpanderaccessible.c',
+  'gtkfilechooserwidgetaccessible.c',
   'gtkflowboxaccessible.c',
   'gtkflowboxchildaccessible.c',
   'gtkframeaccessible.c',
@@ -72,6 +73,7 @@ a11y_headers = files(
   'gtkcontainercellaccessible.h',
   'gtkentryaccessible.h',
   'gtkexpanderaccessible.h',
+  'gtkfilechooserwidgetaccessible.h',
   'gtkflowboxaccessible.h',
   'gtkflowboxchildaccessible.h',
   'gtkframeaccessible.h',
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index d75a3f7857..6a29f3fcf8 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -69,6 +69,7 @@
 #include "gtkcheckbutton.h"
 #include "gtkwindowgroup.h"
 #include "gtkintl.h"
+#include "a11y/gtkfilechooserwidgetaccessible.h"
 #include "gtkshow.h"
 #include "gtkmain.h"
 #include "gtkscrollable.h"
@@ -8752,6 +8753,7 @@ gtk_file_chooser_widget_class_init (GtkFileChooserWidgetClass *class)
   gtk_widget_class_bind_template_callback (widget_class, rename_file_rename_clicked);
   gtk_widget_class_bind_template_callback (widget_class, rename_file_end);
 
+  gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_FILE_CHOOSER_WIDGET_ACCESSIBLE);
   gtk_widget_class_set_css_name (widget_class, "filechooser");
 }