#include "gdk/gdkkeysyms.h"
+#ifdef GDK_WINDOWING_X11
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+#include "gdk/x11/gdkx.h"
+#endif
+
#include "gtkdnd.h"
#include "gtkiconfactory.h"
#include "gtkicontheme.h"
}
+#ifdef GDK_WINDOWING_X11
+
+/*
+ * We want to handle a handful of keys during DND, e.g. Escape to abort.
+ * Grabbing the keyboard has the unfortunate side-effect of preventing
+ * useful things such as using Alt-Tab to cycle between windows or
+ * switching workspaces. Therefore, we just grab the few keys we are
+ * interested in. Note that we need to put the grabs on the root window
+ * in order for them to still work when the focus is moved to another
+ * app/workspace.
+ *
+ * GDK needs a little help to successfully deliver root key events...
+ */
+
+static GdkFilterReturn
+root_key_filter (GdkXEvent *xevent,
+ GdkEvent *event,
+ gpointer data)
+{
+ XEvent *ev = (XEvent *)xevent;
+
+ if ((ev->type == KeyPress || ev->type == KeyRelease) &&
+ ev->xkey.root == ev->xkey.window)
+ ev->xkey.window = (Window)data;
+
+ return GDK_FILTER_CONTINUE;
+}
+
+typedef struct {
+ gint keysym;
+ gint modifiers;
+} GrabKey;
+
+static GrabKey grab_keys[] = {
+ { XK_Escape, 0 },
+ { XK_space, 0 },
+ { XK_KP_Space, 0 },
+ { XK_Return, 0 },
+ { XK_KP_Enter, 0 },
+ { XK_Up, 0 },
+ { XK_Up, Mod1Mask },
+ { XK_Down, 0 },
+ { XK_Down, Mod1Mask },
+ { XK_Left, 0 },
+ { XK_Left, Mod1Mask },
+ { XK_Right, 0 },
+ { XK_Right, Mod1Mask },
+ { XK_KP_Up, 0 },
+ { XK_KP_Up, Mod1Mask },
+ { XK_KP_Down, 0 },
+ { XK_KP_Down, Mod1Mask },
+ { XK_KP_Left, 0 },
+ { XK_KP_Left, Mod1Mask },
+ { XK_KP_Right, 0 },
+ { XK_KP_Right, Mod1Mask }
+};
+
+static void
+grab_dnd_keys (GtkWidget *widget,
+ guint32 time)
+{
+ guint i;
+ GdkWindow *window, *root;
+ gint keycode;
+
+ window = widget->window;
+ root = gdk_screen_get_root_window (gtk_widget_get_screen (widget));
+
+ gdk_error_trap_push ();
+
+ for (i = 0; i < G_N_ELEMENTS (grab_keys); ++i)
+ {
+ keycode = XKeysymToKeycode (GDK_WINDOW_XDISPLAY (window), grab_keys[i].keysym);
+ XGrabKey (GDK_WINDOW_XDISPLAY (window),
+ keycode, grab_keys[i].modifiers,
+ GDK_WINDOW_XID (root),
+ FALSE,
+ GrabModeAsync,
+ GrabModeAsync);
+ }
+
+ gdk_flush ();
+ gdk_error_trap_pop ();
+
+ gdk_window_add_filter (NULL, root_key_filter, (gpointer) GDK_WINDOW_XID (window));
+}
+
+static void
+ungrab_dnd_keys (GtkWidget *widget,
+ guint32 time)
+{
+ guint i;
+ GdkWindow *window, *root;
+ gint keycode;
+
+ window = widget->window;
+ root = gdk_screen_get_root_window (gtk_widget_get_screen (widget));
+
+ gdk_window_remove_filter (NULL, root_key_filter, (gpointer) GDK_WINDOW_XID (window));
+
+ gdk_error_trap_push ();
+
+ for (i = 0; i < G_N_ELEMENTS (grab_keys); ++i)
+ {
+ keycode = XKeysymToKeycode (GDK_WINDOW_XDISPLAY (window), grab_keys[i].keysym);
+ XUngrabKey (GDK_WINDOW_XDISPLAY (window),
+ keycode, grab_keys[i].modifiers,
+ GDK_WINDOW_XID (root));
+ }
+
+ gdk_flush ();
+ gdk_error_trap_pop ();
+}
+
+#else
+
+static void
+grab_dnd_keys (GtkWidget *widget,
+ guint32 time)
+{
+ gdk_keyboard_grab (widget->window, FALSE, time);
+}
+
+static void
+ungrab_dnd_keys (GtkWidget *widget,
+ guint32 time)
+{
+ gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), time);
+}
+
+#endif
+
+
/***************************************************************
* gtk_drag_release_ipc_widget:
* Releases widget retrieved with gtk_drag_get_ipc_widget ()
GdkScreen *screen = gtk_widget_get_screen (widget);
GSList *drag_widgets = g_object_get_data (G_OBJECT (screen),
"gtk-dnd-ipc-widgets");
+ ungrab_dnd_keys (widget, GDK_CURRENT_TIME);
if (window->group)
gtk_window_group_remove_window (window->group, window);
drag_widgets = g_slist_prepend (drag_widgets, widget);
{
cairo_t *cr;
- if (GTK_WIDGET_NO_WINDOW (widget))
+ if (!gtk_widget_get_has_window (widget))
{
x = widget->allocation.x;
y = widget->allocation.y;
* and invokations of gtk_drag_finish() in #GtkWidget:drag-data-received.
* Especially the later is dramatic, when your own #GtkWidget:drag-motion
* handler calls gtk_drag_get_data() to inspect the dragged data.
+ *
+ * There's no way to set a default action here, you can use the
+ * #GtkWidget:drag-motion callback for that. Here's an example which selects
+ * the action to use depending on whether the control key is pressed or not:
+ * |[
+ * static void
+ * drag_motion (GtkWidget *widget,
+ * GdkDragContext *context,
+ * gint x,
+ * gint y,
+ * guint time)
+ * {
+ * GdkModifierType mask;
+ *
+ * gdk_window_get_pointer (gtk_widget_get_window (widget),
+ * NULL, NULL, &mask);
+ * if (mask & GDK_CONTROL_MASK)
+ * gdk_drag_status (context, GDK_ACTION_COPY, time);
+ * else
+ * gdk_drag_status (context, GDK_ACTION_MOVE, time);
+ * }
+ * ]|
*/
void
gtk_drag_dest_set (GtkWidget *widget,
allocation_to_window_x = widget->allocation.x;
allocation_to_window_y = widget->allocation.y;
- if (!GTK_WIDGET_NO_WINDOW (widget))
+ if (gtk_widget_get_has_window (widget))
{
/* The allocation is relative to the parent window for
* window widgets, not to widget->window.
{
GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
- if (GTK_WIDGET_TOPLEVEL (toplevel))
+ if (gtk_widget_is_toplevel (toplevel))
gdk_window_register_dnd (toplevel->window);
}
{
GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
- if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_WIDGET_REALIZED (toplevel))
+ if (gtk_widget_is_toplevel (toplevel) && GTK_WIDGET_REALIZED (toplevel))
gdk_window_register_dnd (toplevel->window);
}
return NULL;
}
- gdk_keyboard_grab (ipc_widget->window, FALSE, time);
-
+ grab_dnd_keys (ipc_widget, time);
+
/* We use a GTK grab here to override any grabs that the widget
* we are dragging from might have held
*/
* @widget: a #GtkWidget
* @colormap: the colormap of the icon
* @pixmap: the image data for the icon
- * @mask: the transparency mask for an image.
- *
+ * @mask: (allow-none): the transparency mask for an image.
+ *
* Sets the icon that will be used for drags from a particular widget
- * from a pixmap/mask. GTK+ retains references for the arguments, and
+ * from a pixmap/mask. GTK+ retains references for the arguments, and
* will release them when they are no longer needed.
* Use gtk_drag_source_set_icon_pixbuf() instead.
**/
*
* Changes the default drag icon. GTK+ retains references for the
* arguments, and will release them when they are no longer needed.
- * This function is obsolete. The default icon should now be changed
- * via the stock system by changing the stock pixbuf for #GTK_STOCK_DND.
+ *
+ * Deprecated: Change the default drag icon via the stock system by
+ * changing the stock pixbuf for #GTK_STOCK_DND instead.
**/
void
gtk_drag_set_default_icon (GdkColormap *colormap,
info);
gdk_display_pointer_ungrab (display, time);
- gdk_display_keyboard_ungrab (display, time);
+ ungrab_dnd_keys (info->ipc_widget, time);
gtk_grab_remove (info->ipc_widget);
/* Send on a release pair to the original
projects / ~andy / gtk / blobdiff