diff options
Diffstat (limited to 'gdk/gdkinputxfree.h')
| -rw-r--r-- | gdk/gdkinputxfree.h | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/gdk/gdkinputxfree.h b/gdk/gdkinputxfree.h new file mode 100644 index 000000000..f74249008 --- /dev/null +++ b/gdk/gdkinputxfree.h @@ -0,0 +1,368 @@ +/* GDK - The GIMP Drawing Kit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifdef XINPUT_XFREE + +/* forward declarations */ + +static gint gdk_input_xfree_set_mode (guint32 deviceid, GdkInputMode mode); +static void gdk_input_check_proximity(); +static void gdk_input_xfree_configure_event (XConfigureEvent *xevent, + GdkWindow *window); +static void gdk_input_xfree_enter_event (XCrossingEvent *xevent, + GdkWindow *window); +static gint gdk_input_xfree_other_event (GdkEvent *event, + XEvent *xevent, + GdkWindow *window); +static gint gdk_input_xfree_enable_window(GdkWindow *window, + GdkDevicePrivate *gdkdev); +static gint gdk_input_xfree_disable_window(GdkWindow *window, + GdkDevicePrivate *gdkdev); +static gint gdk_input_xfree_grab_pointer (GdkWindow * window, + gint owner_events, + GdkEventMask event_mask, + GdkWindow * confine_to, + guint32 time); +static void gdk_input_xfree_ungrab_pointer (guint32 time); + +void +gdk_input_init(void) +{ + gdk_input_vtable.set_mode = gdk_input_xfree_set_mode; + gdk_input_vtable.set_axes = gdk_input_common_set_axes; + gdk_input_vtable.motion_events = gdk_input_common_motion_events; + gdk_input_vtable.get_pointer = gdk_input_common_get_pointer; + gdk_input_vtable.grab_pointer = gdk_input_xfree_grab_pointer; + gdk_input_vtable.ungrab_pointer = gdk_input_xfree_ungrab_pointer; + gdk_input_vtable.configure_event = gdk_input_xfree_configure_event; + gdk_input_vtable.enter_event = gdk_input_xfree_enter_event; + gdk_input_vtable.other_event = gdk_input_xfree_other_event; + gdk_input_vtable.window_none_event = NULL; + gdk_input_vtable.enable_window = gdk_input_xfree_enable_window; + gdk_input_vtable.disable_window = gdk_input_xfree_disable_window; + + gdk_input_ignore_core = FALSE; + gdk_input_common_init(FALSE); +} + +static gint +gdk_input_xfree_set_mode (guint32 deviceid, GdkInputMode mode) +{ + GList *tmp_list; + GdkDevicePrivate *gdkdev; + GdkInputMode old_mode; + GdkInputWindow *input_window; + + gdkdev = gdk_input_find_device(deviceid); + g_return_val_if_fail (gdkdev != NULL,FALSE); + old_mode = gdkdev->info.mode; + + if (gdkdev->info.mode == mode) + return TRUE; + + gdkdev->info.mode = mode; + + if (mode == GDK_MODE_WINDOW) + { + gdkdev->info.has_cursor = FALSE; + for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next) + { + input_window = (GdkInputWindow *)tmp_list->data; + if (input_window->mode != GDK_EXTENSION_EVENTS_CURSOR) + gdk_input_enable_window (input_window->window, gdkdev); + else + if (old_mode != GDK_MODE_DISABLED) + gdk_input_disable_window (input_window->window, gdkdev); + } + } + else if (mode == GDK_MODE_SCREEN) + { + gdkdev->info.has_cursor = TRUE; + for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next) + gdk_input_enable_window (((GdkInputWindow *)tmp_list->data)->window, + gdkdev); + } + else /* mode == GDK_MODE_DISABLED */ + { + for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next) + { + input_window = (GdkInputWindow *)tmp_list->data; + if (old_mode != GDK_MODE_WINDOW || + input_window->mode != GDK_EXTENSION_EVENTS_CURSOR) + gdk_input_disable_window (input_window->window, gdkdev); + } + } + + return TRUE; + +} + +static void +gdk_input_check_proximity() +{ + gint new_proximity = 0; + GList *tmp_list = gdk_input_devices; + + while (tmp_list && !new_proximity) + { + GdkDevicePrivate *gdkdev = (GdkDevicePrivate *)(tmp_list->data); + + if (gdkdev->info.mode != GDK_MODE_DISABLED + && gdkdev->info.deviceid != GDK_CORE_POINTER + && gdkdev->xdevice) + { + XDeviceState *state = XQueryDeviceState(GDK_DISPLAY(), + gdkdev->xdevice); + XInputClass *xic; + int i; + + xic = state->data; + for (i=0; i<state->num_classes; i++) + { + if (xic->class == ValuatorClass) + { + XValuatorState *xvs = (XValuatorState *)xic; + if ((xvs->mode & ProximityState) == InProximity) + { + new_proximity = TRUE; + } + break; + } + xic = (XInputClass *)((char *)xic + xic->length); + } + } + tmp_list = tmp_list->next; + } + + gdk_input_ignore_core = new_proximity; +} + +static void +gdk_input_xfree_configure_event (XConfigureEvent *xevent, GdkWindow *window) +{ + GdkInputWindow *input_window; + gint root_x, root_y; + + input_window = gdk_input_window_find(window); + g_return_if_fail (window != NULL); + + gdk_input_get_root_relative_geometry(GDK_DISPLAY(),GDK_WINDOW_XWINDOW(window), + &root_x, + &root_y, NULL, NULL); + + input_window->root_x = root_x; + input_window->root_y = root_y; +} + +static void +gdk_input_xfree_enter_event (XCrossingEvent *xevent, + GdkWindow *window) +{ + GdkInputWindow *input_window; + gint root_x, root_y; + + input_window = gdk_input_window_find(window); + g_return_if_fail (window != NULL); + + gdk_input_check_proximity(); + + gdk_input_get_root_relative_geometry(GDK_DISPLAY(),GDK_WINDOW_XWINDOW(window), + &root_x, + &root_y, NULL, NULL); + + input_window->root_x = root_x; + input_window->root_y = root_y; +} + +static gint +gdk_input_xfree_other_event (GdkEvent *event, + XEvent *xevent, + GdkWindow *window) +{ + GdkInputWindow *input_window; + + GdkDevicePrivate *gdkdev; + gint return_val; + + input_window = gdk_input_window_find(window); + g_return_val_if_fail (window != NULL, -1); + + /* This is a sort of a hack, as there isn't any XDeviceAnyEvent - + but it's potentially faster than scanning through the types of + every device. If we were deceived, then it won't match any of + the types for the device anyways */ + gdkdev = gdk_input_find_device(((XDeviceButtonEvent *)xevent)->deviceid); + + if (!gdkdev) { + return -1; /* we don't handle it - not an XInput event */ + } + + /* FIXME: It would be nice if we could just get rid of the events + entirely, instead of having to ignore them */ + if (gdkdev->info.mode == GDK_MODE_DISABLED || + (gdkdev->info.mode == GDK_MODE_WINDOW + && input_window->mode == GDK_EXTENSION_EVENTS_CURSOR)) + return FALSE; + + if (!gdk_input_ignore_core) + gdk_input_check_proximity(); + + return_val = gdk_input_common_other_event (event, xevent, + input_window, gdkdev); + + if (return_val > 0 && event->type == GDK_PROXIMITY_OUT && + gdk_input_ignore_core) + gdk_input_check_proximity(); + + /* Do a passive button grab. We have to be careful not to release + an explicit grab, if any. Doubling the grab should be harmless, + but we check anyways. */ + + /* FIXME, finding the proper events here is going to be SLOW - but + we might have different sets for each window/device combination */ + + if (return_val> 0 && !input_window->grabbed) + { + if (event->type == GDK_BUTTON_PRESS) + { + XEventClass event_classes[6]; + gint num_classes; + + gdk_input_common_find_events (window, gdkdev, + ((GdkWindowPrivate *)window)->extension_events, + event_classes, &num_classes); + + XGrabDevice( GDK_DISPLAY(), gdkdev->xdevice, + GDK_WINDOW_XWINDOW (window), + TRUE, num_classes, event_classes, + GrabModeAsync, GrabModeAsync, event->button.time); + } + else if (event->type == GDK_BUTTON_RELEASE) + XUngrabDevice( GDK_DISPLAY(), gdkdev->xdevice, event->button.time); + } + + return return_val; +} + +static gint +gdk_input_xfree_enable_window(GdkWindow *window, GdkDevicePrivate *gdkdev) +{ + /* FIXME: watchout, gdkdev might be core pointer, never opened */ + gdk_input_common_select_events (window, gdkdev); + return TRUE; +} + +static gint +gdk_input_xfree_disable_window(GdkWindow *window, GdkDevicePrivate *gdkdev) +{ + gdk_input_common_select_events (window, gdkdev); + return TRUE; +} + +static gint +gdk_input_xfree_grab_pointer (GdkWindow * window, + gint owner_events, + GdkEventMask event_mask, + GdkWindow * confine_to, + guint32 time) +{ + GdkInputWindow *input_window, *new_window; + GdkDevicePrivate *gdkdev; + GList *tmp_list; + XEventClass event_classes[6]; + gint num_classes; + + tmp_list = gdk_input_windows; + new_window = NULL; + while (tmp_list) + { + input_window = (GdkInputWindow *)tmp_list->data; + if (input_window->grabbed) + return AlreadyGrabbed; + + if (input_window->window == window) + { + new_window = input_window; + break; + } + + tmp_list = tmp_list->next; + } + + g_return_if_fail (new_window == NULL); + + new_window->grabbed = TRUE; + + tmp_list = gdk_input_devices; + while (tmp_list) + { + gdkdev = (GdkDevicePrivate *)tmp_list->data; + if (gdkdev->info.deviceid != GDK_CORE_POINTER && + gdkdev->xdevice && !gdkdev->button_state) + { + gdk_input_common_find_events (window, gdkdev, + ((GdkWindowPrivate *)window)->extension_events, + event_classes, &num_classes); + + /* FIXME: we should do something on failure */ + XGrabDevice( GDK_DISPLAY(), gdkdev->xdevice, + GDK_WINDOW_XWINDOW (window), + TRUE, num_classes, event_classes, + GrabModeAsync, GrabModeAsync, time); + } + tmp_list = tmp_list->next; + } + + return Success; +} + +static void +gdk_input_xfree_ungrab_pointer (guint32 time) +{ + GdkInputWindow *input_window; + GdkDevicePrivate *gdkdev; + GList *tmp_list; + + tmp_list = gdk_input_windows; + while (tmp_list) + { + input_window = (GdkInputWindow *)tmp_list->data; + if (input_window->grabbed) + break; + tmp_list = tmp_list->next; + } + + if (tmp_list) /* we found a grabbed window */ + { + input_window->grabbed = FALSE; + + tmp_list = gdk_input_devices; + while (tmp_list) + { + gdkdev = (GdkDevicePrivate *)tmp_list->data; + if (gdkdev->info.deviceid != GDK_CORE_POINTER && + gdkdev->xdevice && !gdkdev->button_state) + { + XUngrabDevice( gdk_display, gdkdev->xdevice, time); + } + tmp_list = tmp_list->next; + } + } +} + +#endif /* XINPUT_XFREE */ |