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gtk: clean up GtkWidget signals

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- add slots for damage-event, move-focus and keynav-failed
- reorder signals a bit so related stuff is grouped together
- some indentation fixes in the GtkWidgetClass
- remove the move-focus compat hack from GtkTextView
- turn the move-focus compat hack in GtkWindow into properly
  implementing GtkWidget::move-focus()
This commit is contained in:
Michael Natterer 2010-10-20 16:58:18 +02:00
parent ef9a6f205c
commit c2f29f2cef
6 changed files with 100 additions and 165 deletions
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55
gtk/gtktextview.c
View File

@ -308,8 +308,6 @@ static void gtk_text_view_draw_focus (GtkWidget *widget,
cairo_t *cr);
static gboolean gtk_text_view_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_text_view_move_focus (GtkWidget *widget,
GtkDirectionType direction_type);
static void gtk_text_view_select_all (GtkWidget *widget,
gboolean select);
@ -379,8 +377,7 @@ static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
static void gtk_text_view_toggle_cursor_visible (GtkTextView *text_view);
static void gtk_text_view_compat_move_focus(GtkTextView *text_view,
GtkDirectionType direction_type);
static void gtk_text_view_unselect (GtkTextView *text_view);
static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
@ -593,14 +590,6 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
widget_class->motion_notify_event = gtk_text_view_motion_event;
widget_class->draw = gtk_text_view_draw;
widget_class->focus = gtk_text_view_focus;
/* need to override the base class function via override_class_handler,
* because the signal slot is not available in GtkWidgetCLass
*/
g_signal_override_class_handler ("move-focus",
GTK_TYPE_TEXT_VIEW,
G_CALLBACK (gtk_text_view_move_focus));
widget_class->drag_begin = gtk_text_view_drag_begin;
widget_class->drag_end = gtk_text_view_drag_end;
widget_class->drag_data_get = gtk_text_view_drag_data_get;
@ -626,7 +615,6 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
klass->copy_clipboard = gtk_text_view_copy_clipboard;
klass->paste_clipboard = gtk_text_view_paste_clipboard;
klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
klass->move_focus = gtk_text_view_compat_move_focus;
klass->set_scroll_adjustments = gtk_text_view_set_scroll_adjustments;
/*
@ -4932,17 +4920,6 @@ gtk_text_view_focus (GtkWidget *widget,
}
}
static void
gtk_text_view_move_focus (GtkWidget *widget,
GtkDirectionType direction_type)
{
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
if (GTK_TEXT_VIEW_GET_CLASS (text_view)->move_focus)
GTK_TEXT_VIEW_GET_CLASS (text_view)->move_focus (text_view,
direction_type);
}
/*
* Container
*/
@ -6149,36 +6126,6 @@ gtk_text_view_get_accepts_tab (GtkTextView *text_view)
return text_view->priv->accepts_tab;
}
static void
gtk_text_view_compat_move_focus (GtkTextView *text_view,
GtkDirectionType direction_type)
{
GSignalInvocationHint *hint = g_signal_get_invocation_hint (text_view);
/* as of GTK+ 2.12, the "move-focus" signal has been moved to GtkWidget,
* the evil code below makes sure that both emitting the signal and
* calling the virtual function directly continue to work as expetcted
*/
if (hint->signal_id == g_signal_lookup ("move-focus", GTK_TYPE_WIDGET))
{
/* if this is a signal emission, chain up */
gboolean retval;
g_signal_chain_from_overridden_handler (text_view,
direction_type, &retval);
}
else
{
/* otherwise emit the signal, since somebody called the virtual
* function directly
*/
g_signal_emit_by_name (text_view, "move-focus", direction_type);
}
}
/*
* Selections
*/

7
gtk/gtktextview.h
View File

@ -106,13 +106,6 @@ struct _GtkTextViewClass
/* overwrite */
void (* toggle_overwrite) (GtkTextView *text_view);
/* as of GTK+ 2.12 the "move-focus" signal has been moved to GtkWidget,
* so this is merley a virtual function now. Overriding it in subclasses
* continues to work though.
*/
void (* move_focus) (GtkTextView *text_view,
GtkDirectionType direction);
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);

95
gtk/gtkwidget.c
View File

@ -337,6 +337,7 @@ enum {
GRAB_FOCUS,
FOCUS,
MOVE_FOCUS,
KEYNAV_FAILED,
EVENT,
EVENT_AFTER,
BUTTON_PRESS_EVENT,
@ -363,6 +364,12 @@ enum {
SELECTION_RECEIVED,
PROXIMITY_IN_EVENT,
PROXIMITY_OUT_EVENT,
CLIENT_EVENT,
NO_EXPOSE_EVENT,
VISIBILITY_NOTIFY_EVENT,
WINDOW_STATE_EVENT,
DAMAGE_EVENT,
GRAB_BROKEN_EVENT,
DRAG_BEGIN,
DRAG_END,
DRAG_DATA_DELETE,
@ -371,21 +378,14 @@ enum {
DRAG_DROP,
DRAG_DATA_GET,
DRAG_DATA_RECEIVED,
CLIENT_EVENT,
NO_EXPOSE_EVENT,
VISIBILITY_NOTIFY_EVENT,
WINDOW_STATE_EVENT,
POPUP_MENU,
SHOW_HELP,
ACCEL_CLOSURES_CHANGED,
SCREEN_CHANGED,
CAN_ACTIVATE_ACCEL,
GRAB_BROKEN,
COMPOSITED_CHANGED,
QUERY_TOOLTIP,
KEYNAV_FAILED,
DRAG_FAILED,
DAMAGE_EVENT,
LAST_SIGNAL
};
@ -768,6 +768,8 @@ gtk_widget_class_init (GtkWidgetClass *klass)
klass->mnemonic_activate = gtk_widget_real_mnemonic_activate;
klass->grab_focus = gtk_widget_real_grab_focus;
klass->focus = gtk_widget_real_focus;
klass->move_focus = gtk_widget_real_move_focus;
klass->keynav_failed = gtk_widget_real_keynav_failed;
klass->event = NULL;
klass->button_press_event = NULL;
klass->button_release_event = NULL;
@ -1594,15 +1596,39 @@ gtk_widget_class_init (GtkWidgetClass *klass)
* @direction:
*/
widget_signals[MOVE_FOCUS] =
g_signal_new_class_handler (I_("move-focus"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_widget_real_move_focus),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_TYPE_NONE,
1,
GTK_TYPE_DIRECTION_TYPE);
g_signal_new (I_("move-focus"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkWidgetClass, move_focus),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_TYPE_NONE,
1,
GTK_TYPE_DIRECTION_TYPE);
/**
* GtkWidget::keynav-failed:
* @widget: the object which received the signal
* @direction: the direction of movement
*
* Gets emitted if keyboard navigation fails.
* See gtk_widget_keynav_failed() for details.
*
* Returns: %TRUE if stopping keyboard navigation is fine, %FALSE
* if the emitting widget should try to handle the keyboard
* navigation attempt in its parent container(s).
*
* Since: 2.12
**/
widget_signals[KEYNAV_FAILED] =
g_signal_new (I_("keynav-failed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkWidgetClass, keynav_failed),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__ENUM,
G_TYPE_BOOLEAN, 1,
GTK_TYPE_DIRECTION_TYPE);
/**
* GtkWidget::event:
@ -1777,30 +1803,6 @@ gtk_widget_class_init (GtkWidgetClass *klass)
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkWidget::keynav-failed:
* @widget: the object which received the signal
* @direction: the direction of movement
*
* Gets emitted if keyboard navigation fails.
* See gtk_widget_keynav_failed() for details.
*
* Returns: %TRUE if stopping keyboard navigation is fine, %FALSE
* if the emitting widget should try to handle the keyboard
* navigation attempt in its parent container(s).
*
* Since: 2.12
**/
widget_signals[KEYNAV_FAILED] =
g_signal_new_class_handler (I_("keynav-failed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_CALLBACK (gtk_widget_real_keynav_failed),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__ENUM,
G_TYPE_BOOLEAN, 1,
GTK_TYPE_DIRECTION_TYPE);
/**
* GtkWidget::delete-event:
* @widget: the object which received the signal
@ -2729,7 +2731,7 @@ gtk_widget_class_init (GtkWidgetClass *klass)
g_signal_new (I_("damage-event"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
G_STRUCT_OFFSET (GtkWidgetClass, damage_event),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__BOXED,
G_TYPE_BOOLEAN, 1,
@ -2752,7 +2754,7 @@ gtk_widget_class_init (GtkWidgetClass *klass)
*
* Since: 2.8
*/
widget_signals[GRAB_BROKEN] =
widget_signals[GRAB_BROKEN_EVENT] =
g_signal_new (I_("grab-broken-event"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
@ -5809,7 +5811,7 @@ gtk_widget_event_internal (GtkWidget *widget,
signal_num = VISIBILITY_NOTIFY_EVENT;
break;
case GDK_GRAB_BROKEN:
signal_num = GRAB_BROKEN;
signal_num = GRAB_BROKEN_EVENT;
break;
case GDK_DAMAGE:
signal_num = DAMAGE_EVENT;
@ -6296,11 +6298,10 @@ gtk_widget_real_move_focus (GtkWidget *widget,
{
GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
if (GTK_IS_WINDOW (toplevel) &&
GTK_WINDOW_GET_CLASS (toplevel)->move_focus)
if (widget != toplevel && GTK_IS_WINDOW (toplevel))
{
GTK_WINDOW_GET_CLASS (toplevel)->move_focus (GTK_WINDOW (toplevel),
direction);
g_signal_emit (toplevel, widget_signals[MOVE_FOCUS], 0,
direction);
}
}

69
gtk/gtkwidget.h
View File

@ -168,7 +168,7 @@ struct _GtkWidgetClass
GInitiallyUnownedClass parent_class;
/*< public >*/
guint activate_signal;
guint set_scroll_adjustments_signal;
@ -207,7 +207,7 @@ struct _GtkWidgetClass
GParamSpec *pspec);
gboolean (* draw) (GtkWidget *widget,
cairo_t *cr);
/* size requests */
GtkSizeRequestMode (* get_request_mode) (GtkWidget *widget);
@ -227,14 +227,20 @@ struct _GtkWidgetClass
gint *natural_height);
/* Mnemonics */
gboolean (* mnemonic_activate) (GtkWidget *widget,
gboolean group_cycling);
gboolean (* mnemonic_activate) (GtkWidget *widget,
gboolean group_cycling);
/* explicit focus */
void (* grab_focus) (GtkWidget *widget);
gboolean (* focus) (GtkWidget *widget,
GtkDirectionType direction);
void (* grab_focus) (GtkWidget *widget);
gboolean (* focus) (GtkWidget *widget,
GtkDirectionType direction);
/* keyboard navigation */
void (* move_focus) (GtkWidget *widget,
GtkDirectionType direction);
gboolean (* keynav_failed) (GtkWidget *widget,
GtkDirectionType direction);
/* events */
gboolean (* event) (GtkWidget *widget,
GdkEvent *event);
@ -288,31 +294,35 @@ struct _GtkWidgetClass
GdkEventAny *event);
gboolean (* window_state_event) (GtkWidget *widget,
GdkEventWindowState *event);
gboolean (* damage_event) (GtkWidget *widget,
GdkEventExpose *event);
gboolean (* grab_broken_event) (GtkWidget *widget,
GdkEventGrabBroken *event);
/* selection */
void (* selection_get) (GtkWidget *widget,
void (* selection_get) (GtkWidget *widget,
GtkSelectionData *selection_data,
guint info,
guint time_);
void (* selection_received) (GtkWidget *widget,
void (* selection_received) (GtkWidget *widget,
GtkSelectionData *selection_data,
guint time_);
/* Source side drag signals */
void (* drag_begin) (GtkWidget *widget,
void (* drag_begin) (GtkWidget *widget,
GdkDragContext *context);
void (* drag_end) (GtkWidget *widget,
void (* drag_end) (GtkWidget *widget,
GdkDragContext *context);
void (* drag_data_get) (GtkWidget *widget,
void (* drag_data_get) (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time_);
void (* drag_data_delete) (GtkWidget *widget,
void (* drag_data_delete) (GtkWidget *widget,
GdkDragContext *context);
/* Target side drag signals */
void (* drag_leave) (GtkWidget *widget,
void (* drag_leave) (GtkWidget *widget,
GdkDragContext *context,
guint time_);
gboolean (* drag_motion) (GtkWidget *widget,
@ -325,7 +335,7 @@ struct _GtkWidgetClass
gint x,
gint y,
guint time_);
void (* drag_data_received) (GtkWidget *widget,
void (* drag_data_received) (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
@ -343,19 +353,16 @@ struct _GtkWidgetClass
*/
gboolean (* show_help) (GtkWidget *widget,
GtkWidgetHelpType help_type);
/* accessibility support
/* accessibility support
*/
AtkObject* (*get_accessible) (GtkWidget *widget);
AtkObject * (* get_accessible) (GtkWidget *widget);
void (*screen_changed) (GtkWidget *widget,
GdkScreen *previous_screen);
gboolean (*can_activate_accel) (GtkWidget *widget,
guint signal_id);
void (* screen_changed) (GtkWidget *widget,
GdkScreen *previous_screen);
gboolean (* can_activate_accel) (GtkWidget *widget,
guint signal_id);
/* Sent when a grab is broken. */
gboolean (*grab_broken_event) (GtkWidget *widget,
GdkEventGrabBroken *event);
void (* composited_changed) (GtkWidget *widget);
@ -365,7 +372,6 @@ struct _GtkWidgetClass
gboolean keyboard_tooltip,
GtkTooltip *tooltip);
/*< public >*/
void (* compute_expand) (GtkWidget *widget,
gboolean *hexpand_p,
gboolean *vexpand_p);
@ -380,11 +386,6 @@ struct _GtkWidgetClass
/*< private >*/
/* Signals without a C default handler class slot:
* gboolean (*damage_event) (GtkWidget *widget,
* GdkEventExpose *event);
*/
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);

28
gtk/gtkwindow.c
View File

@ -354,6 +354,8 @@ static gboolean gtk_window_state_event (GtkWidget *widget,
static void gtk_window_check_resize (GtkContainer *container);
static gint gtk_window_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_window_move_focus (GtkWidget *widget,
GtkDirectionType dir);
static void gtk_window_real_set_focus (GtkWindow *window,
GtkWidget *focus);
static void gtk_window_direction_changed (GtkWidget *widget,
@ -363,8 +365,6 @@ static void gtk_window_state_changed (GtkWidget *widget,
static void gtk_window_real_activate_default (GtkWindow *window);
static void gtk_window_real_activate_focus (GtkWindow *window);
static void gtk_window_move_focus (GtkWindow *window,
GtkDirectionType dir);
static void gtk_window_keys_changed (GtkWindow *window);
static gint gtk_window_draw (GtkWidget *widget,
cairo_t *cr);
@ -587,6 +587,7 @@ gtk_window_class_init (GtkWindowClass *klass)
widget_class->focus_out_event = gtk_window_focus_out_event;
widget_class->client_event = gtk_window_client_event;
widget_class->focus = gtk_window_focus;
widget_class->move_focus = gtk_window_move_focus;
widget_class->draw = gtk_window_draw;
widget_class->get_preferred_width = gtk_window_get_preferred_width;
widget_class->get_preferred_height = gtk_window_get_preferred_height;
@ -602,7 +603,6 @@ gtk_window_class_init (GtkWindowClass *klass)
klass->activate_default = gtk_window_real_activate_default;
klass->activate_focus = gtk_window_real_activate_focus;
klass->move_focus = gtk_window_move_focus;
klass->keys_changed = gtk_window_keys_changed;
g_type_class_add_private (gobject_class, sizeof (GtkWindowPrivate));
@ -4690,7 +4690,7 @@ gtk_window_show (GtkWidget *widget)
/* Try to make sure that we have some focused widget
*/
if (!priv->focus_widget && !GTK_IS_PLUG (window))
gtk_window_move_focus (window, GTK_DIR_TAB_FORWARD);
gtk_window_move_focus (widget, GTK_DIR_TAB_FORWARD);
if (priv->modal)
gtk_grab_add (widget);
@ -5883,16 +5883,6 @@ gtk_window_real_activate_focus (GtkWindow *window)
gtk_window_activate_focus (window);
}
static void
gtk_window_move_focus (GtkWindow *window,
GtkDirectionType dir)
{
gtk_widget_child_focus (GTK_WIDGET (window), dir);
if (!gtk_container_get_focus_child (GTK_CONTAINER (window)))
gtk_window_set_focus (window, NULL);
}
static gint
gtk_window_enter_notify_event (GtkWidget *widget,
GdkEventCrossing *event)
@ -6119,6 +6109,16 @@ gtk_window_focus (GtkWidget *widget,
return FALSE;
}
static void
gtk_window_move_focus (GtkWidget *widget,
GtkDirectionType dir)
{
gtk_widget_child_focus (widget, dir);
if (! gtk_container_get_focus_child (GTK_CONTAINER (widget)))
gtk_window_set_focus (GTK_WINDOW (widget), NULL);
}
static void
gtk_window_real_set_focus (GtkWindow *window,
GtkWidget *focus)

11
gtk/gtkwindow.h
View File

@ -75,15 +75,8 @@ struct _GtkWindowClass
void (* activate_focus) (GtkWindow *window);
void (* activate_default) (GtkWindow *window);
/* as of GTK+ 2.12 the "move-focus" signal has been moved to GtkWidget,
* so this is merley a virtual function now. Overriding it in subclasses
* continues to work though.
*/
void (* move_focus) (GtkWindow *window,
GtkDirectionType direction);
void (*keys_changed) (GtkWindow *window);
void (* keys_changed) (GtkWindow *window);
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);