Add clicked signal to GritsObject

[grits] / src / objects / grits-object.c

diff --git a/src/objects/grits-object.c b/src/objects/grits-object.c
index 6abc4eb26f3ba70b3ff25a945f2af5918cd38d44..65d7b420aae2e44e55e6585b327a385d104a273f 100644 (file)
--- a/src/objects/grits-object.c
+++ b/src/objects/grits-object.c
@@ -38,6 +38,12 @@
 enum {
        SIG_ENTER,
        SIG_LEAVE,
+       SIG_CLICKED,
+       SIG_BUTTON_PRESS,
+       SIG_BUTTON_RELEASE,
+       SIG_KEY_PRESS,
+       SIG_KEY_RELEASE,
+       SIG_MOTION,
        NUM_SIGNALS,
 };
 static guint signals[NUM_SIGNALS];
@@ -185,6 +191,35 @@ void grits_object_pick_end(GritsObject *object)
        }
 }
 
+void grits_object_event(GritsObject *object, GdkEvent *event)
+{
+       const int map[GDK_EVENT_LAST] = {
+               [GDK_BUTTON_PRESS  ] SIG_BUTTON_PRESS,
+               [GDK_2BUTTON_PRESS ] SIG_BUTTON_PRESS,
+               [GDK_3BUTTON_PRESS ] SIG_BUTTON_PRESS,
+               [GDK_BUTTON_RELEASE] SIG_BUTTON_RELEASE,
+               [GDK_KEY_PRESS     ] SIG_KEY_PRESS,
+               [GDK_KEY_RELEASE   ] SIG_KEY_RELEASE,
+               [GDK_MOTION_NOTIFY ] SIG_MOTION,
+       };
+       if (!object->state.selected)
+               return;
+       guint sig = map[event->type];
+
+       /* Handle button click */
+       if (sig == SIG_BUTTON_PRESS)
+               object->state.clicking = TRUE;
+       if (sig == SIG_BUTTON_RELEASE && object->state.clicking)
+               g_signal_emit(object, signals[SIG_CLICKED], 0, event);
+       if (sig == SIG_BUTTON_RELEASE || sig == SIG_MOTION)
+               object->state.clicking = FALSE;
+
+       /* Emit this signal */
+       if (!g_signal_has_handler_pending(object, signals[sig], 0, FALSE))
+               return;
+       g_signal_emit(object, signals[sig], 0, event);
+}
+
 /* GObject stuff */
 G_DEFINE_ABSTRACT_TYPE(GritsObject, grits_object, G_TYPE_OBJECT);
 static void grits_object_init(GritsObject *object)
@@ -232,4 +267,118 @@ static void grits_object_class_init(GritsObjectClass *klass)
                        g_cclosure_marshal_VOID__VOID,
                        G_TYPE_NONE,
                        0);
+
+       /**
+        * GritsViewer::clicked:
+        * @object: the object.
+        *
+        * The ::clicked signal is emitted when the user clicks on the object
+        */
+       signals[SIG_CLICKED] = g_signal_new(
+                       "clicked",
+                       G_TYPE_FROM_CLASS(gobject_class),
+                       G_SIGNAL_RUN_LAST,
+                       0,
+                       NULL,
+                       NULL,
+                       g_cclosure_marshal_VOID__VOID,
+                       G_TYPE_NONE,
+                       0);
+
+       /**
+        * GritsViewer::button-press:
+        * @object: the object.
+        * @event:  the GdkEventButton which triggered this signal
+        *
+        * The ::button-press signal is emitted when a button (typically from a
+        * mouse) is pressed.
+        */
+       signals[SIG_BUTTON_PRESS] = g_signal_new(
+                       "button-press",
+                       G_TYPE_FROM_CLASS(gobject_class),
+                       G_SIGNAL_RUN_LAST,
+                       0,
+                       NULL,
+                       NULL,
+                       g_cclosure_marshal_VOID__POINTER,
+                       G_TYPE_NONE,
+                       1,
+                       G_TYPE_POINTER);
+
+       /**
+        * GritsViewer::button-release:
+        * @object: the object.
+        * @event:  the GdkEventButton which triggered this signal
+        *
+        * The ::button-release signal is emitted when a button (typically from
+        * a mouse) is released.
+        */
+       signals[SIG_BUTTON_RELEASE] = g_signal_new(
+                       "button-release",
+                       G_TYPE_FROM_CLASS(gobject_class),
+                       G_SIGNAL_RUN_LAST,
+                       0,
+                       NULL,
+                       NULL,
+                       g_cclosure_marshal_VOID__POINTER,
+                       G_TYPE_NONE,
+                       1,
+                       G_TYPE_POINTER);
+
+       /**
+        * GritsViewer::key-press:
+        * @object: the object.
+        * @event:  the GdkEventKey which triggered this signal
+        *
+        * The ::key-press signal is emitted when a key is pressed.
+        */
+       signals[SIG_KEY_PRESS] = g_signal_new(
+                       "key-press",
+                       G_TYPE_FROM_CLASS(gobject_class),
+                       G_SIGNAL_RUN_LAST,
+                       0,
+                       NULL,
+                       NULL,
+                       g_cclosure_marshal_VOID__POINTER,
+                       G_TYPE_NONE,
+                       1,
+                       G_TYPE_POINTER);
+
+       /**
+        * GritsViewer::key-release:
+        * @object: the object.
+        * @event:  the GdkEventKey which triggered this signal
+        *
+        * The ::key-release signal is emitted when a key is released.
+        */
+       signals[SIG_KEY_RELEASE] = g_signal_new(
+                       "key-release",
+                       G_TYPE_FROM_CLASS(gobject_class),
+                       G_SIGNAL_RUN_LAST,
+                       0,
+                       NULL,
+                       NULL,
+                       g_cclosure_marshal_VOID__POINTER,
+                       G_TYPE_NONE,
+                       1,
+                       G_TYPE_POINTER);
+
+       /**
+        * GritsViewer::motion:
+        * @object: the object.
+        * @event:  the GdkEventMotion which triggered this signal
+        *
+        * The ::motion signal is emitted the pointer moves over the object
+        */
+       signals[SIG_MOTION] = g_signal_new(
+                       "motion",
+                       G_TYPE_FROM_CLASS(gobject_class),
+                       G_SIGNAL_RUN_LAST,
+                       0,
+                       NULL,
+                       NULL,
+                       g_cclosure_marshal_VOID__POINTER,
+                       G_TYPE_NONE,
+                       1,
+                       G_TYPE_POINTER);
 }