/* Actor's reactive state changed */
static void _xfdashboard_actor_on_reactive_changed(GObject *inObject,
GParamSpec *inSpec,
gpointer inUserData)
{
XfdashboardActor *self;
g_return_if_fail(XFDASHBOARD_IS_ACTOR(inObject));
self=XFDASHBOARD_ACTOR(inObject);
/* Add pseudo-class ':insensitive' if actor is now not reactive
* and remove this pseudo-class if actor is now reactive.
*/
if(clutter_actor_get_reactive(CLUTTER_ACTOR(self)))
{
xfdashboard_stylable_remove_pseudo_class(XFDASHBOARD_STYLABLE(self), "insensitive");
}
else
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(self), "insensitive");
}
/* Invalide styling to get it recomputed */
_xfdashboard_actor_invalidate_recursive(CLUTTER_ACTOR(self));
}
/* The active workspace has changed */
static void _xfdashboard_workspace_selector_on_active_workspace_changed(XfdashboardWorkspaceSelector *self,
XfdashboardWindowTrackerWorkspace *inPrevWorkspace,
gpointer inUserData)
{
XfdashboardWorkspaceSelectorPrivate *priv;
XfdashboardLiveWorkspace *liveWorkspace;
XfdashboardWindowTrackerWorkspace *workspace;
g_return_if_fail(XFDASHBOARD_IS_WORKSPACE_SELECTOR(self));
priv=self->priv;
/* Unmark previous workspace */
if(inPrevWorkspace)
{
liveWorkspace=_xfdashboard_workspace_selector_find_actor_for_workspace(self, inPrevWorkspace);
if(liveWorkspace) xfdashboard_stylable_remove_pseudo_class(XFDASHBOARD_STYLABLE(liveWorkspace), "active");
priv->activeWorkspace=NULL;
}
/* Mark new active workspace */
workspace=xfdashboard_window_tracker_get_active_workspace(priv->windowTracker);
if(workspace)
{
priv->activeWorkspace=workspace;
liveWorkspace=_xfdashboard_workspace_selector_find_actor_for_workspace(self, priv->activeWorkspace);
if(liveWorkspace) xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(liveWorkspace), "active");
}
}
/* Set press state */
static void _xfdashboard_click_action_set_pressed(XfdashboardClickAction *self, gboolean isPressed)
{
XfdashboardClickActionPrivate *priv;
ClutterActor *actor;
g_return_if_fail(XFDASHBOARD_IS_CLICK_ACTION(self));
priv=self->priv;
/* Set value if changed */
isPressed=!!isPressed;
if(priv->isPressed!=isPressed)
{
/* Set value */
priv->isPressed=isPressed;
/* Style state */
actor=clutter_actor_meta_get_actor(CLUTTER_ACTOR_META(self));
if(XFDASHBOARD_IS_ACTOR(actor))
{
if(priv->isPressed) xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(actor), "pressed");
else xfdashboard_stylable_remove_pseudo_class(XFDASHBOARD_STYLABLE(actor), "pressed");
}
/* Notify about property change */
g_object_notify_by_pspec(G_OBJECT(self), XfdashboardClickActionProperties[PROP_PRESSED]);
}
}
/* Drag handle has changed so unset styles on old handle and set style on new one */
static void _xfdashboard_drag_action_on_drag_handle_changed(XfdashboardDragAction *self,
GParamSpec *inSpec,
gpointer inUserData)
{
XfdashboardDragActionPrivate *priv;
gchar *styleClass;
g_return_if_fail(XFDASHBOARD_IS_DRAG_ACTION(self));
priv=self->priv;
/* Unset styles on current drag handle */
if(priv->dragHandle &&
XFDASHBOARD_IS_ACTOR(priv->dragHandle))
{
/* Unset style */
if(priv->source)
{
styleClass=g_strdup_printf("drag-source-%s", G_OBJECT_TYPE_NAME(priv->source));
xfdashboard_stylable_remove_class(XFDASHBOARD_STYLABLE(priv->dragHandle), styleClass);
g_free(styleClass);
}
styleClass=g_strdup_printf("drag-actor-%s", G_OBJECT_TYPE_NAME(priv->actor));
xfdashboard_stylable_remove_class(XFDASHBOARD_STYLABLE(priv->dragHandle), styleClass);
g_free(styleClass);
xfdashboard_stylable_remove_pseudo_class(XFDASHBOARD_STYLABLE(priv->dragHandle), "drag-handle");
/* Forget drag handle */
priv->dragHandle=NULL;
}
/* Remember new drag handle and set styles */
priv->dragHandle=clutter_drag_action_get_drag_handle(CLUTTER_DRAG_ACTION(self));
if(priv->dragHandle &&
XFDASHBOARD_IS_ACTOR(priv->dragHandle))
{
/* Set style */
if(priv->source)
{
styleClass=g_strdup_printf("drag-source-%s", G_OBJECT_TYPE_NAME(priv->source));
xfdashboard_stylable_add_class(XFDASHBOARD_STYLABLE(priv->dragHandle), styleClass);
g_free(styleClass);
}
styleClass=g_strdup_printf("drag-actor-%s", G_OBJECT_TYPE_NAME(priv->actor));
xfdashboard_stylable_add_class(XFDASHBOARD_STYLABLE(priv->dragHandle), styleClass);
g_free(styleClass);
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(priv->dragHandle), "drag-handle");
}
}
/* Call virtual function "set_focus" */
void xfdashboard_focusable_set_focus(XfdashboardFocusable *self)
{
XfdashboardFocusableInterface *iface;
ClutterActor *selection;
g_return_if_fail(XFDASHBOARD_IS_FOCUSABLE(self));
iface=XFDASHBOARD_FOCUSABLE_GET_IFACE(self);
/* Call virtual function */
if(iface->set_focus)
{
iface->set_focus(self);
}
/* Style newly focused actor */
if(XFDASHBOARD_IS_STYLABLE(self))
{
xfdashboard_stylable_add_class(XFDASHBOARD_STYLABLE(self), "focus");
}
/* If actor supports selection get current selection and style it */
if(xfdashboard_focusable_supports_selection(self))
{
/* Get current selection. If no selection is available then select first item. */
selection=xfdashboard_focusable_get_selection(self);
if(!selection)
{
selection=xfdashboard_focusable_find_selection(self, NULL, XFDASHBOARD_SELECTION_TARGET_FIRST);
if(selection) xfdashboard_focusable_set_selection(self, selection);
}
/* Style selection if available */
if(selection &&
XFDASHBOARD_IS_STYLABLE(selection))
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(selection), "selected");
}
g_debug("Set selection to %s for focused actor %s",
G_OBJECT_TYPE_NAME(self),
selection ? G_OBJECT_TYPE_NAME(selection) : "<nil>");
}
/* Emit signal */
g_signal_emit(self, XfdashboardFocusableSignals[SIGNAL_FOCUS_GAINED], 0, self);
g_debug("Emitted signal 'focus-gained' for focused actor %s", G_OBJECT_TYPE_NAME(self));
}
/* Default signal handler for "drag-enter" */
static void _xfdashboard_drop_action_class_real_drag_enter(XfdashboardDropAction *self,
XfdashboardDragAction *inDragAction)
{
XfdashboardDropActionPrivate *priv;
g_return_if_fail(XFDASHBOARD_IS_DROP_ACTION(self));
priv=self->priv;
/* Unset style */
if(priv->actor &&
XFDASHBOARD_IS_ACTOR(priv->actor))
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(priv->actor), "drop-target");
}
}
/* Pointer entered actor */
static gboolean _xfdashboard_actor_enter_event(ClutterActor *inActor, ClutterCrossingEvent *inEvent)
{
XfdashboardActor *self;
ClutterActorClass *parentClass;
g_return_val_if_fail(XFDASHBOARD_IS_ACTOR(inActor), CLUTTER_EVENT_PROPAGATE);
self=XFDASHBOARD_ACTOR(inActor);
/* Call parent's virtual function */
parentClass=CLUTTER_ACTOR_CLASS(xfdashboard_actor_parent_class);
if(parentClass->enter_event)
{
parentClass->enter_event(inActor, inEvent);
}
/* Add pseudo-class ":hover" because pointer entered actor */
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(self), "hover");
return(CLUTTER_EVENT_PROPAGATE);
}
void xfdashboard_text_box_set_editable(XfdashboardTextBox *self, gboolean isEditable)
{
XfdashboardTextBoxPrivate *priv;
const gchar *text;
g_return_if_fail(XFDASHBOARD_IS_TEXT_BOX(self));
priv=self->priv;
/* Set value if changed */
if(priv->isEditable!=isEditable)
{
priv->isEditable=isEditable;
if(priv->isEditable) xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(self), "editable");
else xfdashboard_stylable_remove_pseudo_class(XFDASHBOARD_STYLABLE(self), "editable");
/* Set up actors */
clutter_text_set_selectable(CLUTTER_TEXT(priv->actorTextBox), priv->isEditable);
clutter_text_set_editable(CLUTTER_TEXT(priv->actorTextBox), priv->isEditable);
text=clutter_text_get_text(CLUTTER_TEXT(priv->actorTextBox));
if((text==NULL || *text==0) && priv->isEditable)
{
clutter_actor_show(priv->actorHintLabel);
}
else
{
clutter_actor_hide(priv->actorHintLabel);
}
clutter_actor_queue_relayout(CLUTTER_ACTOR(self));
/* Notify about property change */
g_object_notify_by_pspec(G_OBJECT(self), XfdashboardTextBoxProperties[PROP_EDITABLE]);
}
}
/* Actor is shown */
static void _xfdashboard_actor_show(ClutterActor *inActor)
{
XfdashboardActor *self;
ClutterActorClass *parentClass;
g_return_if_fail(XFDASHBOARD_IS_ACTOR(inActor));
self=XFDASHBOARD_ACTOR(inActor);
/* Call parent's virtual function */
parentClass=CLUTTER_ACTOR_CLASS(xfdashboard_actor_parent_class);
if(parentClass->show)
{
parentClass->show(inActor);
}
/* If actor is visible now check if pointer is inside this actor
* then add pseudo-class ":hover" to it
*/
if(clutter_actor_has_pointer(inActor))
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(self), "hover");
}
}
/* Call virtual function "set_selection" */
gboolean xfdashboard_focusable_set_selection(XfdashboardFocusable *self, ClutterActor *inSelection)
{
XfdashboardFocusableInterface *iface;
ClutterActor *oldSelection;
gboolean success;
g_return_val_if_fail(XFDASHBOARD_IS_FOCUSABLE(self), FALSE);
g_return_val_if_fail(!inSelection || CLUTTER_IS_ACTOR(inSelection), FALSE);
iface=XFDASHBOARD_FOCUSABLE_GET_IFACE(self);
/* If this focusable actor does not support selection we should ask for
* the current selection and avoid the warning being printed if this
* virtual function was not overridden.
*/
if(!xfdashboard_focusable_supports_selection(self)) return(FALSE);
/* First get current selection */
oldSelection=xfdashboard_focusable_get_selection(self);
/* Do nothing if new selection is the same as the current one */
if(inSelection==oldSelection) return(TRUE);
/* Call virtual function */
if(iface->set_selection)
{
/* Call virtual function to set selection */
success=iface->set_selection(self, inSelection);
/* If new selection could be set successfully, remove signal handlers
* from old selection and set up signal handlers for new selection.
*/
if(success)
{
/* Remove signal handlers and styles from old selection */
if(oldSelection)
{
/* Remove signal handlers at old selection*/
g_signal_handlers_disconnect_by_func(oldSelection,
G_CALLBACK(_xfdashboard_focusable_on_selection_unavailable),
self);
/* Remove style from old selection */
if(XFDASHBOARD_IS_STYLABLE(oldSelection))
{
xfdashboard_stylable_remove_pseudo_class(XFDASHBOARD_STYLABLE(oldSelection), "selected");
}
}
/* Set up signal handlers and styles at new selection */
if(inSelection)
{
/* Set up signal handlers to get notified if new selection
* is going to be unavailable (e.g. hidden or destroyed)
*/
g_signal_connect_swapped(inSelection,
"destroy",
G_CALLBACK(_xfdashboard_focusable_on_selection_unavailable),
self);
g_signal_connect_swapped(inSelection,
"hide",
G_CALLBACK(_xfdashboard_focusable_on_selection_unavailable),
self);
/* Style new selection if this focusable actor has the focus */
if(_xfdashboard_focusable_has_focus(self) &&
XFDASHBOARD_IS_STYLABLE(inSelection))
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(inSelection), "selected");
}
}
/* Emit signal */
g_signal_emit(self, XfdashboardFocusableSignals[SIGNAL_SELECTION_CHANGED], 0, oldSelection, inSelection);
}
/* Return result of calling virtual function */
return(success);
}
/* If we get here the virtual function was not overridden */
XFDASHBOARD_FOCUSABLE_WARN_NOT_IMPLEMENTED(self, "set_selection");
return(FALSE);
}
/* The current selection of a focusable actor (if focussed or not) is not available anymore
* (e.g. hidden or destroyed). So move selection at focusable actor to next available and
* selectable item.
*/
static void _xfdashboard_focusable_on_selection_unavailable(XfdashboardFocusable *self,
gpointer inUserData)
{
XfdashboardFocusableInterface *iface;
ClutterActor *oldSelection;
ClutterActor *newSelection;
gboolean success;
XfdashboardApplication *application;
g_return_if_fail(XFDASHBOARD_IS_FOCUSABLE(self));
g_return_if_fail(CLUTTER_IS_ACTOR(inUserData));
iface=XFDASHBOARD_FOCUSABLE_GET_IFACE(self);
oldSelection=CLUTTER_ACTOR(inUserData);
newSelection=NULL;
success=FALSE;
/* If application is not quitting then call virtual function to set selection
* which have to be available because this signal handler was set in
* xfdashboard_focusable_set_selection() when this virtual function was available
* and successfully called.
* If setting new selection was unsuccessful we set selection to nothing (NULL);
*/
application=xfdashboard_application_get_default();
if(!xfdashboard_application_is_quitting(application))
{
/* Get next selection */
newSelection=xfdashboard_focusable_find_selection(self, oldSelection, XFDASHBOARD_SELECTION_TARGET_NEXT);
/* Set new selection */
success=iface->set_selection(self, newSelection);
if(!success)
{
success=iface->set_selection(self, newSelection);
if(!success)
{
g_critical(_("Old selection %s at %s is unavailable but setting new selection either to %s or nothing failed!"),
G_OBJECT_TYPE_NAME(oldSelection),
G_OBJECT_TYPE_NAME(self),
newSelection ? G_OBJECT_TYPE_NAME(newSelection) : "<nil>");
}
/* Now reset new selection to NULL regardless if setting selection at
* focusable actor was successful or not. A critical warning was displayed
* if is was unsuccessful because setting nothing (NULL) must succeed usually.
*/
newSelection=NULL;
}
}
/* Regardless if setting selection was successful, remove signal handlers
* and styles from old selection.
*/
if(oldSelection)
{
/* Remove signal handlers at old selection*/
g_signal_handlers_disconnect_by_func(oldSelection,
G_CALLBACK(_xfdashboard_focusable_on_selection_unavailable),
self);
/* Remove style from old selection */
if(XFDASHBOARD_IS_STYLABLE(oldSelection))
{
xfdashboard_stylable_remove_pseudo_class(XFDASHBOARD_STYLABLE(oldSelection), "selected");
}
}
/* If setting selection was successful, set up signal handlers and styles at new selection */
if(success && newSelection)
{
/* Set up signal handlers to get notified if new selection
* is going to be unavailable (e.g. hidden or destroyed)
*/
g_signal_connect_swapped(newSelection,
"destroy",
G_CALLBACK(_xfdashboard_focusable_on_selection_unavailable),
self);
g_signal_connect_swapped(newSelection,
"hide",
G_CALLBACK(_xfdashboard_focusable_on_selection_unavailable),
self);
/* Check if this focusable actor has the focus because if it has
* the have to style new selection.
*/
if(_xfdashboard_focusable_has_focus(self) &&
XFDASHBOARD_IS_STYLABLE(newSelection))
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(newSelection), "selected");
}
}
/* Emit signal because at least old selection has changed */
g_signal_emit(self, XfdashboardFocusableSignals[SIGNAL_SELECTION_CHANGED], 0, oldSelection, newSelection);
}
/* Dragging of actor begins */
static void _xfdashboard_drag_action_drag_begin(ClutterDragAction *inAction,
ClutterActor *inActor,
gfloat inStageX,
gfloat inStageY,
ClutterModifierType inModifiers)
{
XfdashboardDragAction *self;
XfdashboardDragActionPrivate *priv;
ClutterDragActionClass *dragActionClass;
GSList *list;
g_return_if_fail(XFDASHBOARD_IS_DRAG_ACTION(inAction));
self=XFDASHBOARD_DRAG_ACTION(inAction);
priv=self->priv;
dragActionClass=CLUTTER_DRAG_ACTION_CLASS(xfdashboard_drag_action_parent_class);
/* Call parent's class method */
if(dragActionClass->drag_begin) dragActionClass->drag_begin(inAction, inActor, inStageX, inStageY, inModifiers);
/* Remember dragged actor while dragging and listen to possible 'destroy' signal emissions */
priv->actor=inActor;
priv->actorDestroySignalID=g_signal_connect_swapped(priv->actor, "destroy", G_CALLBACK(_xfdashboard_drag_action_on_dragged_actor_destroyed), self);
/* Get list of drop targets. It is a new list with all current
* drop targets already reffed. So the drop targets will be valid
* while dragging
*/
priv->targets=xfdashboard_drop_action_get_targets();
/* Emit "begin" signal on all drop targets to determine if they
* can handle dragged actor and to prepare them for dragging.
* All targets returning TRUE (and therefore telling us they
* can handle dragged actor and are prepared for drag'n'drop)
* will be sorted.
*/
list=priv->targets;
while(list)
{
XfdashboardDropAction *dropTarget=XFDASHBOARD_DROP_ACTION(list->data);
gboolean canHandle=FALSE;
g_signal_emit_by_name(dropTarget, "begin", self, &canHandle);
if(!canHandle)
{
GSList *next;
/* Drop target cannot handle dragged actor so unref it and
* remove it from list of drop targets
*/
next=g_slist_next(list);
priv->targets=g_slist_remove_link(priv->targets, list);
g_object_unref(list->data);
g_slist_free_1(list);
list=next;
}
else list=g_slist_next(list);
}
_xfdashboard_drag_action_sort_targets(self);
/* We should listen to allocation changes for each actor which
* is an active drop target.
*/
for(list=priv->targets; list; list=g_slist_next(list))
{
XfdashboardDropAction *dropTarget=XFDASHBOARD_DROP_ACTION(list->data);
ClutterActorMeta *actorMeta=CLUTTER_ACTOR_META(dropTarget);
ClutterActor *actor=clutter_actor_meta_get_actor(actorMeta);
g_signal_connect_swapped(actor, "allocation-changed", G_CALLBACK(_xfdashboard_drag_on_drop_target_allocation_changed), self);
}
/* Setup for dragging */
priv->dragCancelled=FALSE;
priv->lastDropTarget=NULL;
priv->lastMotionActors=NULL;
/* Set styles */
if(priv->source && XFDASHBOARD_IS_ACTOR(priv->source))
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(priv->source), "drag-source");
}
if(XFDASHBOARD_IS_ACTOR(priv->actor))
{
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(priv->actor), "dragged");
}
priv->dragHandle=clutter_drag_action_get_drag_handle(CLUTTER_DRAG_ACTION(self));
if(priv->dragHandle &&
XFDASHBOARD_IS_ACTOR(priv->dragHandle))
{
gchar *styleClass;
if(priv->source)
{
styleClass=g_strdup_printf("drag-source-%s", G_OBJECT_TYPE_NAME(priv->source));
xfdashboard_stylable_add_class(XFDASHBOARD_STYLABLE(priv->dragHandle), styleClass);
g_free(styleClass);
}
styleClass=g_strdup_printf("drag-actor-%s", G_OBJECT_TYPE_NAME(priv->actor));
xfdashboard_stylable_add_class(XFDASHBOARD_STYLABLE(priv->dragHandle), styleClass);
g_free(styleClass);
xfdashboard_stylable_add_pseudo_class(XFDASHBOARD_STYLABLE(priv->dragHandle), "drag-handle");
/* Get notified if drag handle changes */
priv->dragHandleChangedID=g_signal_connect(self, "notify::drag-handle", G_CALLBACK(_xfdashboard_drag_action_on_drag_handle_changed), NULL);
}
}