moving from https://github.com/perberos/mate-desktop-environment

1 files changed, 621 insertions, 0 deletions

diff --git a/libslab/tile.c b/libslab/tile.c
new file mode 100644
index 00000000..870944d9
--- /dev/null
+++ b/libslab/tile.c
@@ -0,0 +1,621 @@
+/*
+ * This file is part of libtile.
+ *
+ * Copyright (c) 2006 Novell, Inc.
+ *
+ * Libtile 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.
+ *
+ * Libtile 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 libslab; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "tile.h"
+
+#include <gdk/gdkkeysyms.h>
+#include <string.h>
+
+#include "double-click-detector.h"
+
+G_DEFINE_TYPE (Tile, tile, GTK_TYPE_BUTTON)
+
+typedef struct
+{
+	DoubleClickDetector *double_click_detector;
+	
+	gboolean is_dragging;
+} TilePrivate;
+
+static void tile_finalize (GObject *);
+static void tile_get_property (GObject *, guint, GValue *, GParamSpec *);
+static void tile_set_property (GObject *, guint, const GValue *, GParamSpec *);
+static GObject *tile_constructor (GType, guint, GObjectConstructParam *);
+
+static void tile_setup (Tile *);
+
+static void tile_enter (GtkButton * widget);
+static void tile_leave (GtkButton * widget);
+static void tile_clicked (GtkButton *widget);
+
+static gboolean tile_focus_in (GtkWidget *, GdkEventFocus *);
+static gboolean tile_focus_out (GtkWidget *, GdkEventFocus *);
+static gboolean tile_expose (GtkWidget *, GdkEventExpose *);
+static gboolean tile_button_release (GtkWidget *, GdkEventButton *);
+static gboolean tile_key_release (GtkWidget *, GdkEventKey *);
+static gboolean tile_popup_menu (GtkWidget *);
+
+static void tile_popup_menu_position (GtkMenu *, gint *, gint *, gboolean *, gpointer);
+
+static void tile_drag_begin (GtkWidget *, GdkDragContext *);
+static void tile_drag_data_get (GtkWidget *, GdkDragContext *, GtkSelectionData *, guint,
+guint);
+
+static void tile_emit_resource_event (Tile *, TileEventType, guint32);
+
+static void tile_tile_action_triggered (Tile *, TileEvent *, TileAction *);
+static void tile_action_triggered_event_marshal (GClosure *, GValue *, guint, const GValue *,
+gpointer, gpointer);
+
+typedef void (*marshal_func_VOID__POINTER_POINTER) (gpointer, gpointer, gpointer, gpointer);
+
+#define TILE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), TILE_TYPE, TilePrivate))
+
+enum
+{
+	TILE_ACTIVATED_SIGNAL,
+	TILE_IMPLICIT_ENABLE_SIGNAL,
+	TILE_IMPLICIT_DISABLE_SIGNAL,
+	TILE_ACTION_TRIGGERED_SIGNAL,
+	LAST_SIGNAL
+};
+
+static guint tile_signals[LAST_SIGNAL] = { 0 };
+
+enum
+{
+	PROP_0,
+	PROP_TILE_URI,
+	PROP_TILE_CONTEXT_MENU,
+	PROP_TILE_ACTIONS
+};
+
+static void
+tile_class_init (TileClass * this_class)
+{
+	GObjectClass *g_obj_class = G_OBJECT_CLASS (this_class);
+	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (this_class);
+	GtkButtonClass *button_class = GTK_BUTTON_CLASS (this_class);
+
+	g_obj_class->constructor = tile_constructor;
+	g_obj_class->get_property = tile_get_property;
+	g_obj_class->set_property = tile_set_property;
+	g_obj_class->finalize = tile_finalize;
+
+	widget_class->focus_in_event = tile_focus_in;
+	widget_class->focus_out_event = tile_focus_out;
+	widget_class->expose_event = tile_expose;
+	widget_class->button_release_event = tile_button_release;
+	widget_class->key_release_event = tile_key_release;
+	widget_class->drag_begin = tile_drag_begin;
+	widget_class->drag_data_get = tile_drag_data_get;
+	widget_class->popup_menu = tile_popup_menu;
+
+	button_class->enter = tile_enter;
+	button_class->leave = tile_leave;
+	button_class->clicked = tile_clicked;
+
+	this_class->tile_explicit_enable = NULL;
+	this_class->tile_explicit_disable = NULL;
+	this_class->tile_activated = NULL;
+	this_class->tile_implicit_enable = NULL;
+	this_class->tile_implicit_disable = NULL;
+	this_class->tile_action_triggered = tile_tile_action_triggered;
+
+	g_type_class_add_private (this_class, sizeof (TilePrivate));
+
+	g_object_class_install_property (g_obj_class, PROP_TILE_URI,
+		g_param_spec_string ("tile-uri", "tile-uri", "the uri of the tile", NULL,
+			G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+
+	g_object_class_install_property (g_obj_class, PROP_TILE_CONTEXT_MENU,
+		g_param_spec_object ("context-menu", "context-menu",
+			"the context menu for the tile", GTK_TYPE_MENU, G_PARAM_READWRITE));
+
+	tile_signals[TILE_ACTIVATED_SIGNAL] = g_signal_new ("tile-activated",
+		G_TYPE_FROM_CLASS (this_class),
+		G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
+		G_STRUCT_OFFSET (TileClass, tile_activated),
+		NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER);
+
+	tile_signals[TILE_IMPLICIT_ENABLE_SIGNAL] = g_signal_new ("tile-implicit-enable",
+		G_TYPE_FROM_CLASS (this_class),
+		G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
+		G_STRUCT_OFFSET (TileClass, tile_implicit_enable),
+		NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER);
+
+	tile_signals[TILE_IMPLICIT_DISABLE_SIGNAL] = g_signal_new ("tile-implicit-disable",
+		G_TYPE_FROM_CLASS (this_class),
+		G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
+		G_STRUCT_OFFSET (TileClass, tile_implicit_disable),
+		NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER);
+
+	tile_signals[TILE_ACTION_TRIGGERED_SIGNAL] = g_signal_new ("tile-action-triggered",
+		G_TYPE_FROM_CLASS (this_class),
+		G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
+		G_STRUCT_OFFSET (TileClass, tile_action_triggered),
+		NULL, NULL, tile_action_triggered_event_marshal, G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER);
+}
+
+static GObject *
+tile_constructor (GType type, guint n_param, GObjectConstructParam * param)
+{
+	GObject *g_obj;
+	TilePrivate *priv;
+
+	g_obj = (*G_OBJECT_CLASS (tile_parent_class)->constructor) (type, n_param, param);
+
+	priv = TILE_GET_PRIVATE (g_obj);
+	priv->double_click_detector = double_click_detector_new ();
+
+	tile_setup (TILE (g_obj));
+
+	return g_obj;
+}
+
+static void
+tile_init (Tile * tile)
+{
+	TilePrivate *priv = TILE_GET_PRIVATE (tile);
+
+	tile->uri = NULL;
+	tile->context_menu = NULL;
+	tile->entered = FALSE;
+	tile->enabled = TRUE;
+
+	tile->actions = NULL;
+	tile->n_actions = 0;
+
+	tile->default_action = NULL;
+
+	priv->double_click_detector = NULL;
+	priv->is_dragging = FALSE;
+}
+
+static void
+tile_finalize (GObject * g_object)
+{
+	Tile *tile = TILE (g_object);
+	TilePrivate *priv = TILE_GET_PRIVATE (g_object);
+
+	if (tile->n_actions)	/* this will also free "default_action" entry */
+	{
+		gint x;
+		for (x = 0; x < tile->n_actions; x++)
+		{
+			if (tile->actions[x])
+				g_object_unref (tile->actions[x]);
+		}
+		g_free (tile->actions);
+	}
+
+	if (tile->uri)
+		g_free (tile->uri);
+	if (tile->context_menu)
+		gtk_widget_destroy (GTK_WIDGET (tile->context_menu));
+
+	g_object_unref (priv->double_click_detector);
+
+	(*G_OBJECT_CLASS (tile_parent_class)->finalize) (g_object);
+}
+
+static void
+tile_get_property (GObject * g_obj, guint prop_id, GValue * value, GParamSpec * param_spec)
+{
+	if (!IS_TILE (g_obj))
+		return;
+
+	switch (prop_id)
+	{
+	case PROP_TILE_URI:
+		g_value_set_string (value, TILE (g_obj)->uri);
+		break;
+
+	case PROP_TILE_CONTEXT_MENU:
+		g_value_set_object (value, TILE (g_obj)->context_menu);
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void
+tile_set_property (GObject * g_obj, guint prop_id, const GValue * value, GParamSpec * param_spec)
+{
+	Tile *tile;
+	GtkMenu *menu;
+
+	if (!IS_TILE (g_obj))
+		return;
+
+	tile = TILE (g_obj);
+
+	switch (prop_id)
+	{
+	case PROP_TILE_URI:
+		tile->uri = g_strdup (g_value_get_string (value));
+		break;
+
+	case PROP_TILE_CONTEXT_MENU:
+		menu = g_value_get_object (value);
+
+		if (menu == tile->context_menu)
+			break;
+
+		if (tile->context_menu)
+			gtk_menu_detach (tile->context_menu);
+
+		tile->context_menu = menu;
+
+		if (tile->context_menu)
+			gtk_menu_attach_to_widget (tile->context_menu, GTK_WIDGET (tile), NULL);
+
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void
+tile_setup (Tile * tile)
+{
+	gtk_button_set_relief (GTK_BUTTON (tile), GTK_RELIEF_NONE);
+
+	if (tile->uri)
+	{
+		gtk_drag_source_set (GTK_WIDGET (tile), GDK_BUTTON1_MASK, NULL, 0,
+			GDK_ACTION_COPY | GDK_ACTION_MOVE);
+
+		gtk_drag_source_add_uri_targets (GTK_WIDGET (tile));
+	}
+}
+
+static void
+tile_enter (GtkButton * widget)
+{
+	gtk_widget_set_state (GTK_WIDGET (widget), TILE_STATE_ENTERED);
+
+	TILE (widget)->entered = TRUE;
+}
+
+static void
+tile_leave (GtkButton * widget)
+{
+	if (GTK_WIDGET_HAS_FOCUS (widget))
+		gtk_widget_set_state (GTK_WIDGET (widget), TILE_STATE_FOCUSED);
+	else
+		gtk_widget_set_state (GTK_WIDGET (widget), GTK_STATE_NORMAL);
+
+	TILE (widget)->entered = FALSE;
+}
+
+static void
+tile_clicked (GtkButton * widget)
+{
+	TileEvent *tile_event;
+
+	tile_event = g_new0 (TileEvent, 1);
+	tile_event->type = TILE_EVENT_ACTIVATED_DOUBLE_CLICK;
+	tile_event->time = gtk_get_current_event_time ();
+
+	g_signal_emit (widget, tile_signals[TILE_ACTIVATED_SIGNAL], 0, tile_event);
+
+	gtk_button_released (widget);
+	g_free (tile_event);
+}
+
+static gboolean
+tile_focus_in (GtkWidget * widget, GdkEventFocus * event)
+{
+	gtk_widget_set_state (widget, TILE_STATE_FOCUSED);
+
+	return FALSE;
+}
+
+static gboolean
+tile_focus_out (GtkWidget * widget, GdkEventFocus * event)
+{
+	if (TILE (widget)->entered)
+		gtk_widget_set_state (widget, TILE_STATE_ENTERED);
+	else
+		gtk_widget_set_state (widget, GTK_STATE_NORMAL);
+
+	return FALSE;
+}
+
+static gboolean
+tile_expose (GtkWidget * widget, GdkEventExpose * event)
+{
+	/* FIXME: there ought to be a better way to prevent the focus from being rendered. */
+
+	gboolean has_focus;
+	gboolean retval;
+
+	if ((has_focus = GTK_WIDGET_HAS_FOCUS (widget)))
+		GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
+
+	retval = (*GTK_WIDGET_CLASS (tile_parent_class)->expose_event) (widget, event);
+
+	if (has_focus)
+		GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
+
+	return retval;
+}
+
+static gboolean
+tile_button_release (GtkWidget * widget, GdkEventButton * event)
+{
+	Tile *tile = TILE (widget);
+	TilePrivate *priv = TILE_GET_PRIVATE (tile);
+
+	TileEvent *tile_event;
+
+	if (priv->is_dragging)
+	{
+		priv->is_dragging = FALSE;
+
+		return TRUE;
+	}
+
+	switch (event->button)
+	{
+	case 1:
+		tile_event = g_new0 (TileEvent, 1);
+		tile_event->time = event->time;
+
+		if (double_click_detector_is_double_click (priv->double_click_detector, event->time,
+				TRUE))
+			tile_event->type = TILE_EVENT_ACTIVATED_DOUBLE_CLICK;
+		else
+			tile_event->type = TILE_EVENT_ACTIVATED_SINGLE_CLICK;
+
+		g_signal_emit (tile, tile_signals[TILE_ACTIVATED_SIGNAL], 0, tile_event);
+
+		gtk_button_released (GTK_BUTTON (widget));
+		g_free (tile_event);
+
+		break;
+
+	case 3:
+		if (GTK_IS_MENU (tile->context_menu))
+			gtk_menu_popup (tile->context_menu, NULL, NULL, NULL, NULL, event->button,
+				event->time);
+
+		break;
+
+	default:
+		break;
+	}
+
+	return TRUE;
+}
+
+static gboolean
+tile_key_release (GtkWidget * widget, GdkEventKey * event)
+{
+	TileEvent *tile_event;
+
+	if (event->keyval == GDK_Return)
+	{
+		tile_event = g_new0 (TileEvent, 1);
+		tile_event->type = TILE_EVENT_ACTIVATED_KEYBOARD;
+		tile_event->time = event->time;
+
+		g_signal_emit (widget, tile_signals[TILE_ACTIVATED_SIGNAL], 0, tile_event);
+
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+static void
+tile_popup_menu_position (GtkMenu * menu, gint * x, gint * y, gboolean * push_in, gpointer data)
+{
+	Tile *tile = TILE (data);
+
+	GtkRequisition req;
+	GtkWidget *top;
+
+	if (!GTK_WIDGET_REALIZED (tile))
+		return;
+
+	gtk_widget_size_request (GTK_WIDGET (menu), &req);
+
+	top = gtk_widget_get_toplevel (GTK_WIDGET (tile));
+
+	gdk_window_get_origin (top->window, x, y);
+
+	*x += (top->allocation.width / 2) - (req.width / 2);
+	*y += (top->allocation.height / 2) - (req.height / 2);
+
+	*push_in = FALSE;
+}
+
+static gboolean
+tile_popup_menu (GtkWidget * widget)
+{
+	Tile *tile = TILE (widget);
+
+	if (GTK_IS_MENU (tile->context_menu))
+	{
+		gtk_menu_popup (tile->context_menu, NULL, NULL, tile_popup_menu_position, tile, 0,
+			gtk_get_current_event_time ());
+
+		return TRUE;
+	}
+
+	else
+		return FALSE;
+}
+
+static void
+tile_drag_begin (GtkWidget * widget, GdkDragContext * context)
+{
+	TILE_GET_PRIVATE (widget)->is_dragging = TRUE;
+}
+
+static void
+tile_drag_data_get (GtkWidget * widget, GdkDragContext * context, GtkSelectionData * data,
+	guint info, guint time)
+{
+	gchar *uris[2];
+
+	if (TILE (widget)->uri)
+	{
+		uris[0] = TILE (widget)->uri;
+		uris[1] = NULL;
+
+		gtk_selection_data_set_uris (data, uris);
+	}
+}
+
+static void
+tile_tile_action_triggered (Tile * tile, TileEvent * event, TileAction * action)
+{
+	if (action && action->func)
+		(*action->func) (tile, event, action);
+}
+
+gint
+tile_compare (gconstpointer a, gconstpointer b)
+{
+	if (IS_TILE (a) && IS_TILE (b))
+		return strcmp (TILE (a)->uri, TILE (b)->uri);
+
+	return a - b;
+}
+
+void
+tile_explicit_enable (Tile * this)
+{
+	TileClass *this_class = TILE_GET_CLASS (this);
+
+	if (this_class->tile_explicit_enable)
+		(*this_class->tile_explicit_enable) (this);
+}
+
+void
+tile_explicit_disable (Tile * this)
+{
+	TileClass *this_class = TILE_GET_CLASS (this);
+
+	if (this_class->tile_explicit_disable)
+		(*this_class->tile_explicit_disable) (this);
+}
+
+void
+tile_implicit_enable (Tile * tile)
+{
+	tile_implicit_enable_with_time (tile, GDK_CURRENT_TIME);
+}
+
+void
+tile_implicit_disable (Tile * tile)
+{
+	tile_implicit_disable_with_time (tile, GDK_CURRENT_TIME);
+}
+
+void
+tile_implicit_enable_with_time (Tile * tile, guint32 time)
+{
+	tile_emit_resource_event (tile, TILE_EVENT_IMPLICIT_ENABLE, time);
+}
+
+void
+tile_implicit_disable_with_time (Tile * tile, guint32 time)
+{
+	tile_emit_resource_event (tile, TILE_EVENT_IMPLICIT_DISABLE, time);
+}
+
+static void
+tile_emit_resource_event (Tile * tile, TileEventType type, guint32 time)
+{
+	TileEvent *event;
+	guint signal_id;
+
+	event = g_new0 (TileEvent, 1);
+	event->type = type;
+	event->time = time;
+
+	if (type == TILE_EVENT_IMPLICIT_ENABLE)
+	{
+		signal_id = tile_signals[TILE_IMPLICIT_ENABLE_SIGNAL];
+		tile->enabled = TRUE;
+	}
+	else
+	{
+		signal_id = tile_signals[TILE_IMPLICIT_DISABLE_SIGNAL];
+		tile->enabled = FALSE;
+	}
+
+	g_signal_emit (tile, signal_id, 0, event);
+	g_free (event);
+}
+
+void
+tile_trigger_action (Tile * tile, TileAction * action)
+{
+	tile_trigger_action_with_time (tile, action, GDK_CURRENT_TIME);
+}
+
+void
+tile_trigger_action_with_time (Tile * tile, TileAction * action, guint32 time)
+{
+	TileEvent *event = g_new0 (TileEvent, 1);
+
+	event->type = TILE_EVENT_ACTION_TRIGGERED;
+	event->time = time;
+
+	g_signal_emit (tile, tile_signals[TILE_ACTION_TRIGGERED_SIGNAL], 0, event, action);
+	g_free (event);
+}
+
+static void
+tile_action_triggered_event_marshal (GClosure * closure, GValue * retval, guint n_param,
+	const GValue * param, gpointer invocation_hint, gpointer marshal_data)
+{
+	marshal_func_VOID__POINTER_POINTER callback;
+	GCClosure *cc = (GCClosure *) closure;
+	gpointer data_0, data_1;
+
+	g_return_if_fail (n_param == 3);
+
+	if (G_CCLOSURE_SWAP_DATA (closure))
+	{
+		data_0 = closure->data;
+		data_1 = g_value_peek_pointer (param);
+	}
+	else
+	{
+		data_0 = g_value_peek_pointer (param);
+		data_1 = closure->data;
+	}
+
+	if (marshal_data)
+		callback = (marshal_func_VOID__POINTER_POINTER) marshal_data;
+	else
+		callback = (marshal_func_VOID__POINTER_POINTER) cc->callback;
+
+	callback (data_0, g_value_peek_pointer (param + 1), g_value_peek_pointer (param + 2),
+		data_1);
+}