mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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343 lines
9.7 KiB
C
343 lines
9.7 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifdef XINPUT_XFREE
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/* forward declarations */
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static gint gdk_input_xfree_set_mode (guint32 deviceid, GdkInputMode mode);
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static void gdk_input_check_proximity();
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static void gdk_input_xfree_configure_event (XConfigureEvent *xevent,
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GdkWindow *window);
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static void gdk_input_xfree_enter_event (XCrossingEvent *xevent,
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GdkWindow *window);
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static gint gdk_input_xfree_other_event (GdkEvent *event,
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XEvent *xevent,
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GdkWindow *window);
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static gint gdk_input_xfree_enable_window(GdkWindow *window,
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GdkDevicePrivate *gdkdev);
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static gint gdk_input_xfree_disable_window(GdkWindow *window,
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GdkDevicePrivate *gdkdev);
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static gint gdk_input_xfree_grab_pointer (GdkWindow * window,
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gint owner_events,
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GdkEventMask event_mask,
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GdkWindow * confine_to,
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guint32 time);
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static void gdk_input_xfree_ungrab_pointer (guint32 time);
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void
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gdk_input_init(void)
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{
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gdk_input_vtable.set_mode = gdk_input_xfree_set_mode;
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gdk_input_vtable.set_axes = gdk_input_common_set_axes;
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gdk_input_vtable.set_key = gdk_input_common_set_key;
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gdk_input_vtable.motion_events = gdk_input_common_motion_events;
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gdk_input_vtable.get_pointer = gdk_input_common_get_pointer;
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gdk_input_vtable.grab_pointer = gdk_input_xfree_grab_pointer;
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gdk_input_vtable.ungrab_pointer = gdk_input_xfree_ungrab_pointer;
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gdk_input_vtable.configure_event = gdk_input_xfree_configure_event;
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gdk_input_vtable.enter_event = gdk_input_xfree_enter_event;
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gdk_input_vtable.other_event = gdk_input_xfree_other_event;
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gdk_input_vtable.window_none_event = NULL;
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gdk_input_vtable.enable_window = gdk_input_xfree_enable_window;
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gdk_input_vtable.disable_window = gdk_input_xfree_disable_window;
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gdk_input_ignore_core = FALSE;
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gdk_input_common_init(FALSE);
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}
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static gint
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gdk_input_xfree_set_mode (guint32 deviceid, GdkInputMode mode)
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{
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GList *tmp_list;
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GdkDevicePrivate *gdkdev;
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GdkInputMode old_mode;
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GdkInputWindow *input_window;
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gdkdev = gdk_input_find_device(deviceid);
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g_return_val_if_fail (gdkdev != NULL,FALSE);
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old_mode = gdkdev->info.mode;
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if (gdkdev->info.mode == mode)
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return TRUE;
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gdkdev->info.mode = mode;
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if (mode == GDK_MODE_WINDOW)
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{
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gdkdev->info.has_cursor = FALSE;
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for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
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{
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input_window = (GdkInputWindow *)tmp_list->data;
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if (input_window->mode != GDK_EXTENSION_EVENTS_CURSOR)
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gdk_input_enable_window (input_window->window, gdkdev);
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else
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if (old_mode != GDK_MODE_DISABLED)
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gdk_input_disable_window (input_window->window, gdkdev);
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}
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}
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else if (mode == GDK_MODE_SCREEN)
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{
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gdkdev->info.has_cursor = TRUE;
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for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
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gdk_input_enable_window (((GdkInputWindow *)tmp_list->data)->window,
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gdkdev);
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}
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else /* mode == GDK_MODE_DISABLED */
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{
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for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
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{
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input_window = (GdkInputWindow *)tmp_list->data;
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if (old_mode != GDK_MODE_WINDOW ||
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input_window->mode != GDK_EXTENSION_EVENTS_CURSOR)
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gdk_input_disable_window (input_window->window, gdkdev);
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}
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}
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return TRUE;
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}
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static void
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gdk_input_check_proximity()
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{
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gint new_proximity = 0;
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GList *tmp_list = gdk_input_devices;
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while (tmp_list && !new_proximity)
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{
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GdkDevicePrivate *gdkdev = (GdkDevicePrivate *)(tmp_list->data);
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if (gdkdev->info.mode != GDK_MODE_DISABLED
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&& gdkdev->info.deviceid != GDK_CORE_POINTER
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&& gdkdev->xdevice)
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{
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XDeviceState *state = XQueryDeviceState(GDK_DISPLAY(),
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gdkdev->xdevice);
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XInputClass *xic;
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int i;
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xic = state->data;
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for (i=0; i<state->num_classes; i++)
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{
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if (xic->class == ValuatorClass)
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{
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XValuatorState *xvs = (XValuatorState *)xic;
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if ((xvs->mode & ProximityState) == InProximity)
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{
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new_proximity = TRUE;
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}
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break;
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}
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xic = (XInputClass *)((char *)xic + xic->length);
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}
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}
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tmp_list = tmp_list->next;
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}
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gdk_input_ignore_core = new_proximity;
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}
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static void
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gdk_input_xfree_configure_event (XConfigureEvent *xevent, GdkWindow *window)
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{
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GdkInputWindow *input_window;
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gint root_x, root_y;
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input_window = gdk_input_window_find(window);
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g_return_if_fail (window != NULL);
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gdk_input_get_root_relative_geometry(GDK_DISPLAY(),GDK_WINDOW_XWINDOW(window),
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&root_x,
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&root_y, NULL, NULL);
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input_window->root_x = root_x;
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input_window->root_y = root_y;
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}
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static void
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gdk_input_xfree_enter_event (XCrossingEvent *xevent,
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GdkWindow *window)
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{
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GdkInputWindow *input_window;
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gint root_x, root_y;
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input_window = gdk_input_window_find(window);
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g_return_if_fail (window != NULL);
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gdk_input_check_proximity();
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gdk_input_get_root_relative_geometry(GDK_DISPLAY(),GDK_WINDOW_XWINDOW(window),
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&root_x,
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&root_y, NULL, NULL);
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input_window->root_x = root_x;
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input_window->root_y = root_y;
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}
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static gint
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gdk_input_xfree_other_event (GdkEvent *event,
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XEvent *xevent,
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GdkWindow *window)
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{
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GdkInputWindow *input_window;
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GdkDevicePrivate *gdkdev;
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gint return_val;
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input_window = gdk_input_window_find(window);
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g_return_val_if_fail (window != NULL, -1);
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/* This is a sort of a hack, as there isn't any XDeviceAnyEvent -
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but it's potentially faster than scanning through the types of
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every device. If we were deceived, then it won't match any of
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the types for the device anyways */
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gdkdev = gdk_input_find_device(((XDeviceButtonEvent *)xevent)->deviceid);
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if (!gdkdev) {
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return -1; /* we don't handle it - not an XInput event */
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}
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/* FIXME: It would be nice if we could just get rid of the events
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entirely, instead of having to ignore them */
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if (gdkdev->info.mode == GDK_MODE_DISABLED ||
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(gdkdev->info.mode == GDK_MODE_WINDOW
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&& input_window->mode == GDK_EXTENSION_EVENTS_CURSOR))
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return FALSE;
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if (!gdk_input_ignore_core)
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gdk_input_check_proximity();
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return_val = gdk_input_common_other_event (event, xevent,
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input_window, gdkdev);
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if (return_val > 0 && event->type == GDK_PROXIMITY_OUT &&
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gdk_input_ignore_core)
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gdk_input_check_proximity();
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return return_val;
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}
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static gint
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gdk_input_xfree_enable_window(GdkWindow *window, GdkDevicePrivate *gdkdev)
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{
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/* FIXME: watchout, gdkdev might be core pointer, never opened */
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gdk_input_common_select_events (window, gdkdev);
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return TRUE;
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}
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static gint
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gdk_input_xfree_disable_window(GdkWindow *window, GdkDevicePrivate *gdkdev)
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{
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gdk_input_common_select_events (window, gdkdev);
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return TRUE;
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}
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static gint
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gdk_input_xfree_grab_pointer (GdkWindow * window,
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gint owner_events,
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GdkEventMask event_mask,
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GdkWindow * confine_to,
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guint32 time)
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{
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GdkInputWindow *input_window, *new_window;
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GdkDevicePrivate *gdkdev;
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GList *tmp_list;
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XEventClass event_classes[GDK_MAX_DEVICE_CLASSES];
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gint num_classes;
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gint result;
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tmp_list = gdk_input_windows;
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new_window = NULL;
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while (tmp_list)
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{
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input_window = (GdkInputWindow *)tmp_list->data;
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if (input_window->grabbed)
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return AlreadyGrabbed;
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if (input_window->window == window)
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new_window = input_window;
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tmp_list = tmp_list->next;
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}
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g_return_val_if_fail (new_window != NULL, Success); /* shouldn't happen */
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new_window->grabbed = TRUE;
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tmp_list = gdk_input_devices;
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while (tmp_list)
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{
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gdkdev = (GdkDevicePrivate *)tmp_list->data;
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if (gdkdev->info.deviceid != GDK_CORE_POINTER &&
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gdkdev->xdevice)
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{
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gdk_input_common_find_events (window, gdkdev,
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event_mask,
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event_classes, &num_classes);
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result = XGrabDevice( GDK_DISPLAY(), gdkdev->xdevice,
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GDK_WINDOW_XWINDOW (window),
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owner_events, num_classes, event_classes,
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GrabModeAsync, GrabModeAsync, time);
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/* FIXME: if failure occurs on something other than the first
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device, things will be badly inconsistent */
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if (result != Success)
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return result;
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}
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tmp_list = tmp_list->next;
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}
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return Success;
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}
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static void
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gdk_input_xfree_ungrab_pointer (guint32 time)
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{
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GdkInputWindow *input_window;
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GdkDevicePrivate *gdkdev;
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GList *tmp_list;
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tmp_list = gdk_input_windows;
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while (tmp_list)
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{
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input_window = (GdkInputWindow *)tmp_list->data;
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if (input_window->grabbed)
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break;
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tmp_list = tmp_list->next;
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}
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if (tmp_list) /* we found a grabbed window */
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{
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input_window->grabbed = FALSE;
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tmp_list = gdk_input_devices;
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while (tmp_list)
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{
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gdkdev = (GdkDevicePrivate *)tmp_list->data;
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if (gdkdev->info.deviceid != GDK_CORE_POINTER && gdkdev->xdevice)
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XUngrabDevice( gdk_display, gdkdev->xdevice, time);
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tmp_list = tmp_list->next;
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}
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}
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}
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#endif /* XINPUT_XFREE */
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