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Diffstat (limited to 'src/core/display.c')
| -rw-r--r-- | src/core/display.c | 5355 |
1 files changed, 5355 insertions, 0 deletions
diff --git a/src/core/display.c b/src/core/display.c new file mode 100644 index 00000000..59ec9021 --- /dev/null +++ b/src/core/display.c @@ -0,0 +1,5355 @@ +/* Marco X display handler */ + +/* + * Copyright (C) 2001 Havoc Pennington + * Copyright (C) 2002, 2003, 2004 Red Hat, Inc. + * Copyright (C) 2003, 2004 Rob Adams + * Copyright (C) 2004-2006 Elijah Newren + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +/** + * \file display.c Handles operations on an X display. + * + * The display is represented as a MetaDisplay struct. + */ + +#include <config.h> +#include "display-private.h" +#include "util.h" +#include "main.h" +#include "screen-private.h" +#include "window-private.h" +#include "window-props.h" +#include "group-props.h" +#include "frame-private.h" +#include "errors.h" +#include "keybindings.h" +#include "prefs.h" +#include "resizepopup.h" +#include "xprops.h" +#include "workspace.h" +#include "bell.h" +#include "effects.h" +#include "compositor.h" +#include <X11/Xatom.h> +#include <X11/cursorfont.h> + +#ifdef HAVE_SOLARIS_XINERAMA + #include <X11/extensions/xinerama.h> +#endif + +#ifdef HAVE_XFREE_XINERAMA + #include <X11/extensions/Xinerama.h> +#endif + +#ifdef HAVE_RANDR + #include <X11/extensions/Xrandr.h> +#endif + +#ifdef HAVE_SHAPE + #include <X11/extensions/shape.h> +#endif + +#ifdef HAVE_RENDER + #include <X11/extensions/Xrender.h> +#endif + +#ifdef HAVE_XKB + #include <X11/XKBlib.h> +#endif + +#ifdef HAVE_XCURSOR + #include <X11/Xcursor/Xcursor.h> +#endif + +#ifdef HAVE_COMPOSITE_EXTENSIONS + #include <X11/extensions/Xcomposite.h> + #include <X11/extensions/Xdamage.h> + #include <X11/extensions/Xfixes.h> + #include <gtk/gtk.h> +#endif + +#include <string.h> + +#define GRAB_OP_IS_WINDOW_SWITCH(g) \ + (g == META_GRAB_OP_KEYBOARD_TABBING_NORMAL || \ + g == META_GRAB_OP_KEYBOARD_TABBING_DOCK || \ + g == META_GRAB_OP_KEYBOARD_TABBING_GROUP || \ + g == META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL || \ + g == META_GRAB_OP_KEYBOARD_ESCAPING_DOCK || \ + g == META_GRAB_OP_KEYBOARD_ESCAPING_GROUP) + +/** + * \defgroup pings Pings + * + * Sometimes we want to see whether a window is responding, + * so we send it a "ping" message and see whether it sends us back a "pong" + * message within a reasonable time. Here we have a system which lets us + * nominate one function to be called if we get the pong in time and another + * function if we don't. The system is rather more complicated than it needs + * to be, since we only ever use it to destroy windows which are asked to + * close themselves and don't do so within a reasonable amount of time, and + * therefore we always use the same callbacks. It's possible that we might + * use it for other things in future, or on the other hand we might decide + * that we're never going to do so and simplify it a bit. + */ + +/** + * Describes a ping on a window. When we send a ping to a window, we build + * one of these structs, and it eventually gets passed to the timeout function + * or to the function which handles the response from the window. If the window + * does or doesn't respond to the ping, we use this information to deal with + * these facts; we have a handler function for each. + * + * \ingroup pings + */ +typedef struct +{ + MetaDisplay *display; + Window xwindow; + guint32 timestamp; + MetaWindowPingFunc ping_reply_func; + MetaWindowPingFunc ping_timeout_func; + void *user_data; + guint ping_timeout_id; +} MetaPingData; + +typedef struct +{ + MetaDisplay *display; + Window xwindow; +} MetaAutoRaiseData; + +/** + * The display we're managing. This is a singleton object. (Historically, + * this was a list of displays, but there was never any way to add more + * than one element to it.) The goofy name is because we don't want it + * to shadow the parameter in its object methods. + */ +static MetaDisplay *the_display = NULL; + +#ifdef WITH_VERBOSE_MODE +static void meta_spew_event (MetaDisplay *display, + XEvent *event); +#endif + +static gboolean event_callback (XEvent *event, + gpointer data); +static Window event_get_modified_window (MetaDisplay *display, + XEvent *event); +static guint32 event_get_time (MetaDisplay *display, + XEvent *event); +static void process_request_frame_extents (MetaDisplay *display, + XEvent *event); +static void process_pong_message (MetaDisplay *display, + XEvent *event); +static void process_selection_request (MetaDisplay *display, + XEvent *event); +static void process_selection_clear (MetaDisplay *display, + XEvent *event); + +static void update_window_grab_modifiers (MetaDisplay *display); + +static void prefs_changed_callback (MetaPreference pref, + void *data); + +static void sanity_check_timestamps (MetaDisplay *display, + guint32 known_good_timestamp); + +MetaGroup* get_focussed_group (MetaDisplay *display); + +/** + * Destructor for MetaPingData structs. Will destroy the + * event source for the struct as well. + * + * \ingroup pings + */ +static void +ping_data_free (MetaPingData *ping_data) +{ + /* Remove the timeout */ + if (ping_data->ping_timeout_id != 0) + g_source_remove (ping_data->ping_timeout_id); + + g_free (ping_data); +} + +/** + * Frees every pending ping structure for the given X window on the + * given display. This means that we also destroy the timeouts. + * + * \param display The display the window appears on + * \param xwindow The X ID of the window whose pings we should remove + * + * \ingroup pings + * + */ +static void +remove_pending_pings_for_window (MetaDisplay *display, Window xwindow) +{ + GSList *tmp; + GSList *dead; + + /* could obviously be more efficient, don't care */ + + /* build list to be removed */ + dead = NULL; + for (tmp = display->pending_pings; tmp; tmp = tmp->next) + { + MetaPingData *ping_data = tmp->data; + + if (ping_data->xwindow == xwindow) + dead = g_slist_prepend (dead, ping_data); + } + + /* remove what we found */ + for (tmp = dead; tmp; tmp = tmp->next) + { + MetaPingData *ping_data = tmp->data; + + display->pending_pings = g_slist_remove (display->pending_pings, ping_data); + ping_data_free (ping_data); + } + + g_slist_free (dead); +} + + +#ifdef HAVE_STARTUP_NOTIFICATION +static void +sn_error_trap_push (SnDisplay *sn_display, + Display *xdisplay) +{ + MetaDisplay *display; + display = meta_display_for_x_display (xdisplay); + if (display != NULL) + meta_error_trap_push (display); +} + +static void +sn_error_trap_pop (SnDisplay *sn_display, + Display *xdisplay) +{ + MetaDisplay *display; + display = meta_display_for_x_display (xdisplay); + if (display != NULL) + meta_error_trap_pop (display, FALSE); +} +#endif + +static void +enable_compositor (MetaDisplay *display, + gboolean composite_windows) +{ + GSList *list; + + if (!META_DISPLAY_HAS_COMPOSITE (display) || + !META_DISPLAY_HAS_DAMAGE (display) || + !META_DISPLAY_HAS_XFIXES (display) || + !META_DISPLAY_HAS_RENDER (display)) + { + meta_warning (_("Missing %s extension required for compositing"), + !META_DISPLAY_HAS_COMPOSITE (display) ? "composite" : + !META_DISPLAY_HAS_DAMAGE (display) ? "damage" : + !META_DISPLAY_HAS_XFIXES (display) ? "xfixes" : "render"); + return; + } + + if (!display->compositor) + display->compositor = meta_compositor_new (display); + + if (!display->compositor) + return; + + for (list = display->screens; list != NULL; list = list->next) + { + MetaScreen *screen = list->data; + + meta_compositor_manage_screen (screen->display->compositor, + screen); + + if (composite_windows) + meta_screen_composite_all_windows (screen); + } +} + +static void +disable_compositor (MetaDisplay *display) +{ + GSList *list; + + if (!display->compositor) + return; + + for (list = display->screens; list != NULL; list = list->next) + { + MetaScreen *screen = list->data; + + meta_compositor_unmanage_screen (screen->display->compositor, + screen); + } + + meta_compositor_destroy (display->compositor); + display->compositor = NULL; +} + +/** + * Opens a new display, sets it up, initialises all the X extensions + * we will need, and adds it to the list of displays. + * + * \return True if the display was opened successfully, and False + * otherwise-- that is, if the display doesn't exist or it already + * has a window manager. + * + * \ingroup main + */ +gboolean +meta_display_open (void) +{ + Display *xdisplay; + GSList *screens; + GSList *tmp; + int i; + guint32 timestamp; + + /* A list of all atom names, so that we can intern them in one go. */ + char *atom_names[] = { +#define item(x) #x, +#include "atomnames.h" +#undef item + }; + Atom atoms[G_N_ELEMENTS(atom_names)]; + + meta_verbose ("Opening display '%s'\n", XDisplayName (NULL)); + + xdisplay = meta_ui_get_display (); + + if (xdisplay == NULL) + { + meta_warning (_("Failed to open X Window System display '%s'\n"), + XDisplayName (NULL)); + return FALSE; + } + + if (meta_is_syncing ()) + XSynchronize (xdisplay, True); + + g_assert (the_display == NULL); + the_display = g_new (MetaDisplay, 1); + + the_display->closing = 0; + + /* here we use XDisplayName which is what the user + * probably put in, vs. DisplayString(display) which is + * canonicalized by XOpenDisplay() + */ + the_display->name = g_strdup (XDisplayName (NULL)); + the_display->xdisplay = xdisplay; + the_display->error_trap_synced_at_last_pop = TRUE; + the_display->error_traps = 0; + the_display->error_trap_handler = NULL; + the_display->server_grab_count = 0; + the_display->display_opening = TRUE; + + the_display->pending_pings = NULL; + the_display->autoraise_timeout_id = 0; + the_display->autoraise_window = NULL; + the_display->focus_window = NULL; + the_display->expected_focus_window = NULL; + the_display->grab_old_window_stacking = NULL; + + the_display->mouse_mode = TRUE; /* Only relevant for mouse or sloppy focus */ + the_display->allow_terminal_deactivation = TRUE; /* Only relevant for when a + terminal has the focus */ + +#ifdef HAVE_XSYNC + the_display->grab_sync_request_alarm = None; +#endif + + /* FIXME copy the checks from GDK probably */ + the_display->static_gravity_works = g_getenv ("MARCO_USE_STATIC_GRAVITY") != NULL; + + meta_bell_init (the_display); + + meta_display_init_keys (the_display); + + update_window_grab_modifiers (the_display); + + meta_prefs_add_listener (prefs_changed_callback, the_display); + + meta_verbose ("Creating %d atoms\n", (int) G_N_ELEMENTS (atom_names)); + XInternAtoms (the_display->xdisplay, atom_names, G_N_ELEMENTS (atom_names), + False, atoms); + { + int i = 0; +#define item(x) the_display->atom_##x = atoms[i++]; +#include "atomnames.h" +#undef item + } + + the_display->prop_hooks = NULL; + meta_display_init_window_prop_hooks (the_display); + the_display->group_prop_hooks = NULL; + meta_display_init_group_prop_hooks (the_display); + + /* Offscreen unmapped window used for _NET_SUPPORTING_WM_CHECK, + * created in screen_new + */ + the_display->leader_window = None; + the_display->timestamp_pinging_window = None; + + the_display->xinerama_cache_invalidated = TRUE; + + the_display->groups_by_leader = NULL; + + the_display->window_with_menu = NULL; + the_display->window_menu = NULL; + + the_display->screens = NULL; + the_display->active_screen = NULL; + +#ifdef HAVE_STARTUP_NOTIFICATION + the_display->sn_display = sn_display_new (the_display->xdisplay, + sn_error_trap_push, + sn_error_trap_pop); +#endif + + the_display->events = NULL; + + /* Get events */ + meta_ui_add_event_func (the_display->xdisplay, + event_callback, + the_display); + + the_display->window_ids = g_hash_table_new (meta_unsigned_long_hash, + meta_unsigned_long_equal); + + i = 0; + while (i < N_IGNORED_SERIALS) + { + the_display->ignored_serials[i] = 0; + ++i; + } + the_display->ungrab_should_not_cause_focus_window = None; + + the_display->current_time = CurrentTime; + the_display->sentinel_counter = 0; + + the_display->grab_resize_timeout_id = 0; + the_display->grab_have_keyboard = FALSE; + +#ifdef HAVE_XKB + the_display->last_bell_time = 0; +#endif + + the_display->grab_op = META_GRAB_OP_NONE; + the_display->grab_wireframe_active = FALSE; + the_display->grab_window = NULL; + the_display->grab_screen = NULL; + the_display->grab_resize_popup = NULL; + + the_display->grab_edge_resistance_data = NULL; + +#ifdef HAVE_XSYNC + { + int major, minor; + + the_display->have_xsync = FALSE; + + the_display->xsync_error_base = 0; + the_display->xsync_event_base = 0; + + /* I don't think we really have to fill these in */ + major = SYNC_MAJOR_VERSION; + minor = SYNC_MINOR_VERSION; + + if (!XSyncQueryExtension (the_display->xdisplay, + &the_display->xsync_event_base, + &the_display->xsync_error_base) || + !XSyncInitialize (the_display->xdisplay, + &major, &minor)) + { + the_display->xsync_error_base = 0; + the_display->xsync_event_base = 0; + } + else + the_display->have_xsync = TRUE; + + meta_verbose ("Attempted to init Xsync, found version %d.%d error base %d event base %d\n", + major, minor, + the_display->xsync_error_base, + the_display->xsync_event_base); + } +#else /* HAVE_XSYNC */ + meta_verbose ("Not compiled with Xsync support\n"); +#endif /* !HAVE_XSYNC */ + + +#ifdef HAVE_SHAPE + { + the_display->have_shape = FALSE; + + the_display->shape_error_base = 0; + the_display->shape_event_base = 0; + + if (!XShapeQueryExtension (the_display->xdisplay, + &the_display->shape_event_base, + &the_display->shape_error_base)) + { + the_display->shape_error_base = 0; + the_display->shape_event_base = 0; + } + else + the_display->have_shape = TRUE; + + meta_verbose ("Attempted to init Shape, found error base %d event base %d\n", + the_display->shape_error_base, + the_display->shape_event_base); + } +#else /* HAVE_SHAPE */ + meta_verbose ("Not compiled with Shape support\n"); +#endif /* !HAVE_SHAPE */ + +#ifdef HAVE_RENDER + { + the_display->have_render = FALSE; + + the_display->render_error_base = 0; + the_display->render_event_base = 0; + + if (!XRenderQueryExtension (the_display->xdisplay, + &the_display->render_event_base, + &the_display->render_error_base)) + { + the_display->render_error_base = 0; + the_display->render_event_base = 0; + } + else + the_display->have_render = TRUE; + + meta_verbose ("Attempted to init Render, found error base %d event base %d\n", + the_display->render_error_base, + the_display->render_event_base); + } +#else /* HAVE_RENDER */ + meta_verbose ("Not compiled with Render support\n"); +#endif /* !HAVE_RENDER */ + +#ifdef HAVE_COMPOSITE_EXTENSIONS + { + the_display->have_composite = FALSE; + + the_display->composite_error_base = 0; + the_display->composite_event_base = 0; + + if (!XCompositeQueryExtension (the_display->xdisplay, + &the_display->composite_event_base, + &the_display->composite_error_base)) + { + the_display->composite_error_base = 0; + the_display->composite_event_base = 0; + } + else + { + the_display->composite_major_version = 0; + the_display->composite_minor_version = 0; + if (XCompositeQueryVersion (the_display->xdisplay, + &the_display->composite_major_version, + &the_display->composite_minor_version)) + { + the_display->have_composite = TRUE; + } + else + { + the_display->composite_major_version = 0; + the_display->composite_minor_version = 0; + } + } + + meta_verbose ("Attempted to init Composite, found error base %d event base %d " + "extn ver %d %d\n", + the_display->composite_error_base, + the_display->composite_event_base, + the_display->composite_major_version, + the_display->composite_minor_version); + + the_display->have_damage = FALSE; + + the_display->damage_error_base = 0; + the_display->damage_event_base = 0; + + if (!XDamageQueryExtension (the_display->xdisplay, + &the_display->damage_event_base, + &the_display->damage_error_base)) + { + the_display->damage_error_base = 0; + the_display->damage_event_base = 0; + } + else + the_display->have_damage = TRUE; + + meta_verbose ("Attempted to init Damage, found error base %d event base %d\n", + the_display->damage_error_base, + the_display->damage_event_base); + + the_display->have_xfixes = FALSE; + + the_display->xfixes_error_base = 0; + the_display->xfixes_event_base = 0; + + if (!XFixesQueryExtension (the_display->xdisplay, + &the_display->xfixes_event_base, + &the_display->xfixes_error_base)) + { + the_display->xfixes_error_base = 0; + the_display->xfixes_event_base = 0; + } + else + the_display->have_xfixes = TRUE; + + meta_verbose ("Attempted to init XFixes, found error base %d event base %d\n", + the_display->xfixes_error_base, + the_display->xfixes_event_base); + } +#else /* HAVE_COMPOSITE_EXTENSIONS */ + meta_verbose ("Not compiled with Composite support\n"); +#endif /* !HAVE_COMPOSITE_EXTENSIONS */ + +#ifdef HAVE_XCURSOR + { + XcursorSetTheme (the_display->xdisplay, meta_prefs_get_cursor_theme ()); + XcursorSetDefaultSize (the_display->xdisplay, meta_prefs_get_cursor_size ()); + } +#else /* HAVE_XCURSOR */ + meta_verbose ("Not compiled with Xcursor support\n"); +#endif /* !HAVE_XCURSOR */ + + /* Create the leader window here. Set its properties and + * use the timestamp from one of the PropertyNotify events + * that will follow. + */ + { + gulong data[1]; + XEvent event; + + /* We only care about the PropertyChangeMask in the next 30 or so lines of + * code. Note that gdk will at some point unset the PropertyChangeMask for + * this window, so we can't rely on it still being set later. See bug + * 354213 for details. + */ + the_display->leader_window = + meta_create_offscreen_window (the_display->xdisplay, + DefaultRootWindow (the_display->xdisplay), + PropertyChangeMask); + + meta_prop_set_utf8_string_hint (the_display, + the_display->leader_window, + the_display->atom__NET_WM_NAME, + "Marco"); + + meta_prop_set_utf8_string_hint (the_display, + the_display->leader_window, + the_display->atom__MARCO_VERSION, + VERSION); + + data[0] = the_display->leader_window; + XChangeProperty (the_display->xdisplay, + the_display->leader_window, + the_display->atom__NET_SUPPORTING_WM_CHECK, + XA_WINDOW, + 32, PropModeReplace, (guchar*) data, 1); + + XWindowEvent (the_display->xdisplay, + the_display->leader_window, + PropertyChangeMask, + &event); + + timestamp = event.xproperty.time; + + /* Make it painfully clear that we can't rely on PropertyNotify events on + * this window, as per bug 354213. + */ + XSelectInput(the_display->xdisplay, + the_display->leader_window, + NoEventMask); + } + + /* Make a little window used only for pinging the server for timestamps; note + * that meta_create_offscreen_window already selects for PropertyChangeMask. + */ + the_display->timestamp_pinging_window = + meta_create_offscreen_window (the_display->xdisplay, + DefaultRootWindow (the_display->xdisplay), + PropertyChangeMask); + + the_display->last_focus_time = timestamp; + the_display->last_user_time = timestamp; + the_display->compositor = NULL; + + screens = NULL; + + i = 0; + while (i < ScreenCount (xdisplay)) + { + MetaScreen *screen; + + screen = meta_screen_new (the_display, i, timestamp); + + if (screen) + screens = g_slist_prepend (screens, screen); + ++i; + } + + the_display->screens = screens; + + if (screens == NULL) + { + /* This would typically happen because all the screens already + * have window managers. + */ + meta_display_close (the_display, timestamp); + return FALSE; + } + + /* We don't composite the windows here because they will be composited + faster with the call to meta_screen_manage_all_windows further down + the code */ + if (meta_prefs_get_compositing_manager ()) + enable_compositor (the_display, FALSE); + + meta_display_grab (the_display); + + /* Now manage all existing windows */ + tmp = the_display->screens; + while (tmp != NULL) + { + MetaScreen *screen = tmp->data; + + meta_screen_manage_all_windows (screen); + + tmp = tmp->next; + } + + { + Window focus; + int ret_to; + + /* kinda bogus because GetInputFocus has no possible errors */ + meta_error_trap_push (the_display); + + /* FIXME: This is totally broken; see comment 9 of bug 88194 about this */ + focus = None; + ret_to = RevertToPointerRoot; + XGetInputFocus (the_display->xdisplay, &focus, &ret_to); + + /* Force a new FocusIn (does this work?) */ + + /* Use the same timestamp that was passed to meta_screen_new(), + * as it is the most recent timestamp. + */ + if (focus == None || focus == PointerRoot) + /* Just focus the no_focus_window on the first screen */ + meta_display_focus_the_no_focus_window (the_display, + the_display->screens->data, + timestamp); + else + { + MetaWindow * window; + window = meta_display_lookup_x_window (the_display, focus); + if (window) + meta_display_set_input_focus_window (the_display, window, FALSE, timestamp); + else + /* Just focus the no_focus_window on the first screen */ + meta_display_focus_the_no_focus_window (the_display, + the_display->screens->data, + timestamp); + } + + meta_error_trap_pop (the_display, FALSE); + } + + meta_display_ungrab (the_display); + + /* Done opening new display */ + the_display->display_opening = FALSE; + + return TRUE; +} + +static void +listify_func (gpointer key, gpointer value, gpointer data) +{ + GSList **listp; + + listp = data; + *listp = g_slist_prepend (*listp, value); +} + +static gint +ptrcmp (gconstpointer a, gconstpointer b) +{ + if (a < b) + return -1; + else if (a > b) + return 1; + else + return 0; +} + +GSList* +meta_display_list_windows (MetaDisplay *display) +{ + GSList *winlist; + GSList *tmp; + GSList *prev; + + winlist = NULL; + g_hash_table_foreach (display->window_ids, + listify_func, + &winlist); + + /* Uniquify the list, since both frame windows and plain + * windows are in the hash + */ + winlist = g_slist_sort (winlist, ptrcmp); + + prev = NULL; + tmp = winlist; + while (tmp != NULL) + { + GSList *next; + + next = tmp->next; + + if (next && + next->data == tmp->data) + { + /* Delete tmp from list */ + + if (prev) + prev->next = next; + + if (tmp == winlist) + winlist = next; + + g_slist_free_1 (tmp); + + /* leave prev unchanged */ + } + else + { + prev = tmp; + } + + tmp = next; + } + + return winlist; +} + +void +meta_display_close (MetaDisplay *display, + guint32 timestamp) +{ + GSList *tmp; + + g_assert (display != NULL); + + if (display->closing != 0) + { + /* The display's already been closed. */ + return; + } + + if (display->error_traps > 0) + meta_bug ("Display closed with error traps pending\n"); + + display->closing += 1; + + meta_prefs_remove_listener (prefs_changed_callback, display); + + meta_display_remove_autoraise_callback (display); + + if (display->grab_old_window_stacking) + g_list_free (display->grab_old_window_stacking); + + /* Stop caring about events */ + meta_ui_remove_event_func (display->xdisplay, + event_callback, + display); + + /* Free all screens */ + tmp = display->screens; + while (tmp != NULL) + { + MetaScreen *screen = tmp->data; + meta_screen_free (screen, timestamp); + tmp = tmp->next; + } + + g_slist_free (display->screens); + display->screens = NULL; + +#ifdef HAVE_STARTUP_NOTIFICATION + if (display->sn_display) + { + sn_display_unref (display->sn_display); + display->sn_display = NULL; + } +#endif + + /* Must be after all calls to meta_window_free() since they + * unregister windows + */ + g_hash_table_destroy (display->window_ids); + + if (display->leader_window != None) + XDestroyWindow (display->xdisplay, display->leader_window); + + XFlush (display->xdisplay); + + meta_display_free_window_prop_hooks (display); + meta_display_free_group_prop_hooks (display); + + g_free (display->name); + + meta_display_shutdown_keys (display); + + if (display->compositor) + meta_compositor_destroy (display->compositor); + + g_free (display); + display = NULL; + + meta_quit (META_EXIT_SUCCESS); +} + +MetaScreen* +meta_display_screen_for_root (MetaDisplay *display, + Window xroot) +{ + GSList *tmp; + + tmp = display->screens; + while (tmp != NULL) + { + MetaScreen *screen = tmp->data; + + if (xroot == screen->xroot) + return screen; + + tmp = tmp->next; + } + + return NULL; +} + +MetaScreen* +meta_display_screen_for_xwindow (MetaDisplay *display, + Window xwindow) +{ + XWindowAttributes attr; + int result; + + meta_error_trap_push (display); + attr.screen = NULL; + result = XGetWindowAttributes (display->xdisplay, xwindow, &attr); + meta_error_trap_pop (display, TRUE); + + /* Note, XGetWindowAttributes is on all kinds of crack + * and returns 1 on success 0 on failure, rather than Success + * on success. + */ + if (result == 0 || attr.screen == NULL) + return NULL; + + return meta_display_screen_for_x_screen (display, attr.screen); +} + +MetaScreen* +meta_display_screen_for_x_screen (MetaDisplay *display, + Screen *xscreen) +{ + GSList *tmp; + + tmp = display->screens; + while (tmp != NULL) + { + MetaScreen *screen = tmp->data; + + if (xscreen == screen->xscreen) + return screen; + + tmp = tmp->next; + } + + return NULL; +} + +/* Grab/ungrab routines taken from fvwm */ +void +meta_display_grab (MetaDisplay *display) +{ + if (display->server_grab_count == 0) + { + XGrabServer (display->xdisplay); + } + display->server_grab_count += 1; + meta_verbose ("Grabbing display, grab count now %d\n", + display->server_grab_count); +} + +void +meta_display_ungrab (MetaDisplay *display) +{ + if (display->server_grab_count == 0) + meta_bug ("Ungrabbed non-grabbed server\n"); + + display->server_grab_count -= 1; + if (display->server_grab_count == 0) + { + /* FIXME we want to purge all pending "queued" stuff + * at this point, such as window hide/show + */ + XUngrabServer (display->xdisplay); + XFlush (display->xdisplay); + } + + meta_verbose ("Ungrabbing display, grab count now %d\n", + display->server_grab_count); +} + +/** + * Returns the singleton MetaDisplay if "xdisplay" matches the X display it's + * managing; otherwise gives a warning and returns NULL. When we were claiming + * to be able to manage multiple displays, this was supposed to find the + * display out of the list which matched that display. Now it's merely an + * extra sanity check. + * + * \param xdisplay An X display + * \return The singleton X display, or NULL if "xdisplay" isn't the one + * we're managing. + */ +MetaDisplay* +meta_display_for_x_display (Display *xdisplay) +{ + if (the_display->xdisplay == xdisplay) + return the_display; + + meta_warning ("Could not find display for X display %p, probably going to crash\n", + xdisplay); + + return NULL; +} + +/** + * Accessor for the singleton MetaDisplay. + * + * \return The only MetaDisplay there is. This can be NULL, but only + * during startup. + */ +MetaDisplay* +meta_get_display (void) +{ + return the_display; +} + +#ifdef WITH_VERBOSE_MODE +static gboolean dump_events = TRUE; +#endif + +static gboolean +grab_op_is_mouse_only (MetaGrabOp op) +{ + switch (op) + { + case META_GRAB_OP_MOVING: + case META_GRAB_OP_RESIZING_SE: + case META_GRAB_OP_RESIZING_S: + case META_GRAB_OP_RESIZING_SW: + case META_GRAB_OP_RESIZING_N: + case META_GRAB_OP_RESIZING_NE: + case META_GRAB_OP_RESIZING_NW: + case META_GRAB_OP_RESIZING_W: + case META_GRAB_OP_RESIZING_E: + return TRUE; + + default: + return FALSE; + } +} + +static gboolean +grab_op_is_mouse (MetaGrabOp op) +{ + switch (op) + { + case META_GRAB_OP_MOVING: + case META_GRAB_OP_RESIZING_SE: + case META_GRAB_OP_RESIZING_S: + case META_GRAB_OP_RESIZING_SW: + case META_GRAB_OP_RESIZING_N: + case META_GRAB_OP_RESIZING_NE: + case META_GRAB_OP_RESIZING_NW: + case META_GRAB_OP_RESIZING_W: + case META_GRAB_OP_RESIZING_E: + case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN: + case META_GRAB_OP_KEYBOARD_RESIZING_S: + case META_GRAB_OP_KEYBOARD_RESIZING_N: + case META_GRAB_OP_KEYBOARD_RESIZING_W: + case META_GRAB_OP_KEYBOARD_RESIZING_E: + case META_GRAB_OP_KEYBOARD_RESIZING_SE: + case META_GRAB_OP_KEYBOARD_RESIZING_NE: + case META_GRAB_OP_KEYBOARD_RESIZING_SW: + case META_GRAB_OP_KEYBOARD_RESIZING_NW: + case META_GRAB_OP_KEYBOARD_MOVING: + return TRUE; + + default: + return FALSE; + } +} + +static gboolean +grab_op_is_keyboard (MetaGrabOp op) +{ + switch (op) + { + case META_GRAB_OP_KEYBOARD_MOVING: + case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN: + case META_GRAB_OP_KEYBOARD_RESIZING_S: + case META_GRAB_OP_KEYBOARD_RESIZING_N: + case META_GRAB_OP_KEYBOARD_RESIZING_W: + case META_GRAB_OP_KEYBOARD_RESIZING_E: + case META_GRAB_OP_KEYBOARD_RESIZING_SE: + case META_GRAB_OP_KEYBOARD_RESIZING_NE: + case META_GRAB_OP_KEYBOARD_RESIZING_SW: + case META_GRAB_OP_KEYBOARD_RESIZING_NW: + case META_GRAB_OP_KEYBOARD_TABBING_NORMAL: + case META_GRAB_OP_KEYBOARD_TABBING_DOCK: + case META_GRAB_OP_KEYBOARD_TABBING_GROUP: + case META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL: + case META_GRAB_OP_KEYBOARD_ESCAPING_DOCK: + case META_GRAB_OP_KEYBOARD_ESCAPING_GROUP: + case META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING: + return TRUE; + + default: + return FALSE; + } +} + +gboolean +meta_grab_op_is_resizing (MetaGrabOp op) +{ + switch (op) + { + case META_GRAB_OP_RESIZING_SE: + case META_GRAB_OP_RESIZING_S: + case META_GRAB_OP_RESIZING_SW: + case META_GRAB_OP_RESIZING_N: + case META_GRAB_OP_RESIZING_NE: + case META_GRAB_OP_RESIZING_NW: + case META_GRAB_OP_RESIZING_W: + case META_GRAB_OP_RESIZING_E: + case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN: + case META_GRAB_OP_KEYBOARD_RESIZING_S: + case META_GRAB_OP_KEYBOARD_RESIZING_N: + case META_GRAB_OP_KEYBOARD_RESIZING_W: + case META_GRAB_OP_KEYBOARD_RESIZING_E: + case META_GRAB_OP_KEYBOARD_RESIZING_SE: + case META_GRAB_OP_KEYBOARD_RESIZING_NE: + case META_GRAB_OP_KEYBOARD_RESIZING_SW: + case META_GRAB_OP_KEYBOARD_RESIZING_NW: + return TRUE; + + default: + return FALSE; + } +} + +gboolean +meta_grab_op_is_moving (MetaGrabOp op) +{ + switch (op) + { + case META_GRAB_OP_MOVING: + case META_GRAB_OP_KEYBOARD_MOVING: + return TRUE; + + default: + return FALSE; + } +} + +/* Get time of current event, or CurrentTime if none. */ +guint32 +meta_display_get_current_time (MetaDisplay *display) +{ + return display->current_time; +} + +/* Get a timestamp, even if it means a roundtrip */ +guint32 +meta_display_get_current_time_roundtrip (MetaDisplay *display) +{ + guint32 timestamp; + + timestamp = meta_display_get_current_time (display); + if (timestamp == CurrentTime) + { + XEvent property_event; + + /* Using the property XA_PRIMARY because it's safe; nothing + * would use it as a property. The type doesn't matter. + */ + XChangeProperty (display->xdisplay, + display->timestamp_pinging_window, + XA_PRIMARY, XA_STRING, 8, + PropModeAppend, NULL, 0); + XWindowEvent (display->xdisplay, + display->timestamp_pinging_window, + PropertyChangeMask, + &property_event); + timestamp = property_event.xproperty.time; + } + + sanity_check_timestamps (display, timestamp); + + return timestamp; +} + +static void +add_ignored_serial (MetaDisplay *display, + unsigned long serial) +{ + int i; + + /* don't add the same serial more than once */ + if (display->ignored_serials[N_IGNORED_SERIALS-1] == serial) + return; + + /* shift serials to the left */ + i = 0; + while (i < (N_IGNORED_SERIALS - 1)) + { + display->ignored_serials[i] = display->ignored_serials[i+1]; + ++i; + } + /* put new one on the end */ + display->ignored_serials[i] = serial; +} + +static gboolean +serial_is_ignored (MetaDisplay *display, + unsigned long serial) +{ + int i; + + i = 0; + while (i < N_IGNORED_SERIALS) + { + if (display->ignored_serials[i] == serial) + return TRUE; + ++i; + } + return FALSE; +} + +static void +reset_ignores (MetaDisplay *display) +{ + int i; + + i = 0; + while (i < N_IGNORED_SERIALS) + { + display->ignored_serials[i] = 0; + ++i; + } + + display->ungrab_should_not_cause_focus_window = None; +} + +static gboolean +window_raise_with_delay_callback (void *data) +{ + MetaWindow *window; + MetaAutoRaiseData *auto_raise; + + auto_raise = data; + + meta_topic (META_DEBUG_FOCUS, + "In autoraise callback for window 0x%lx\n", + auto_raise->xwindow); + + auto_raise->display->autoraise_timeout_id = 0; + auto_raise->display->autoraise_window = NULL; + + window = meta_display_lookup_x_window (auto_raise->display, + auto_raise->xwindow); + + if (window == NULL) + return FALSE; + + /* If we aren't already on top, check whether the pointer is inside + * the window and raise the window if so. + */ + if (meta_stack_get_top (window->screen->stack) != window) + { + int x, y, root_x, root_y; + Window root, child; + unsigned int mask; + gboolean same_screen; + gboolean point_in_window; + + meta_error_trap_push (window->display); + same_screen = XQueryPointer (window->display->xdisplay, + window->xwindow, + &root, &child, + &root_x, &root_y, &x, &y, &mask); + meta_error_trap_pop (window->display, TRUE); + + point_in_window = + (window->frame && POINT_IN_RECT (root_x, root_y, window->frame->rect)) || + (window->frame == NULL && POINT_IN_RECT (root_x, root_y, window->rect)); + if (same_screen && point_in_window) + meta_window_raise (window); + else + meta_topic (META_DEBUG_FOCUS, + "Pointer not inside window, not raising %s\n", + window->desc); + } + + return FALSE; +} + +void +meta_display_queue_autoraise_callback (MetaDisplay *display, + MetaWindow *window) +{ + MetaAutoRaiseData *auto_raise_data; + + meta_topic (META_DEBUG_FOCUS, + "Queuing an autoraise timeout for %s with delay %d\n", + window->desc, + meta_prefs_get_auto_raise_delay ()); + + auto_raise_data = g_new (MetaAutoRaiseData, 1); + auto_raise_data->display = window->display; + auto_raise_data->xwindow = window->xwindow; + + if (display->autoraise_timeout_id != 0) + g_source_remove (display->autoraise_timeout_id); + + display->autoraise_timeout_id = + g_timeout_add_full (G_PRIORITY_DEFAULT, + meta_prefs_get_auto_raise_delay (), + window_raise_with_delay_callback, + auto_raise_data, + g_free); + display->autoraise_window = window; +} + +#if 0 +static void +handle_net_restack_window (MetaDisplay* display, + XEvent *event) +{ + MetaWindow *window; + + window = meta_display_lookup_x_window (display, + event->xclient.window); + + if (window) + { + /* FIXME: The EWMH includes a sibling for the restack request, but we + * (stupidly) don't currently support these types of raises. + * + * Also, unconditionally following these is REALLY stupid--we should + * combine this code with the stuff in + * meta_window_configure_request() which is smart about whether to + * follow the request or do something else (though not smart enough + * and is also too stupid to handle the sibling stuff). + */ + switch (event->xclient.data.l[2]) + { + case Above: + meta_window_raise (window); + break; + case Below: + meta_window_lower (window); + break; + case TopIf: + case BottomIf: + case Opposite: + break; + } + } +} +#endif + +/* We do some of our event handling in core/frames.c, which expects + * GDK events delivered by GTK+. However, since the transition to + * client side windows, we can't let GDK see button events, since the + * client-side tracking of implicit and explicit grabs it does will + * get confused by our direct use of X grabs. + * + * So we do a very minimal GDK => GTK event conversion here and send on the + * events we care about, and then filter them out so they don't go + * through the normal GDK event handling. + * + * To reduce the amount of code, the only events fields filled out + * below are the ones that frames.c uses. If frames.c is modified to + * use more fields, more fields need to be filled out below. + * + * https://github.com/stefano-k/Mate-Desktop-Environment/commit/b0e5fb03eb21dae8f02692f11ef391bfc5ccba33 + */ + +static gboolean maybe_send_event_to_gtk(MetaDisplay* display, XEvent* xevent) +{ + /* We're always using the default display */ + GdkDisplay* gdk_display = gdk_display_get_default(); + GdkEvent gdk_event; + GdkWindow* gdk_window; + Window window; + + switch (xevent->type) + { + case ButtonPress: + case ButtonRelease: + window = xevent->xbutton.window; + break; + + case MotionNotify: + window = xevent->xmotion.window; + break; + + case EnterNotify: + + case LeaveNotify: + window = xevent->xcrossing.window; + break; + + default: + return FALSE; + } + + gdk_window = gdk_window_lookup_for_display(gdk_display, window); + + if (gdk_window == NULL) + { + return FALSE; + } + + /* If GDK already things it has a grab, we better let it see events; this + * is the menu-navigation case and events need to get sent to the appropriate + * (client-side) subwindow for individual menu items. + */ + + if (gdk_display_pointer_is_grabbed(gdk_display)) + { + return FALSE; + } + + memset(&gdk_event, 0, sizeof(gdk_event)); + + switch (xevent->type) + { + + case ButtonPress: + + case ButtonRelease: + + if (xevent->type == ButtonPress) + { + GtkSettings* settings = gtk_settings_get_default(); + + int double_click_time; + int double_click_distance; + + g_object_get (settings, + "gtk-double-click-time", &double_click_time, + "gtk-double-click-distance", &double_click_distance, + NULL); + + if (xevent->xbutton.button == display->button_click_number && + xevent->xbutton.window == display->button_click_window && + xevent->xbutton.time < display->button_click_time + double_click_time && + ABS(xevent->xbutton.x - display->button_click_x) <= double_click_distance && + ABS (xevent->xbutton.y - display->button_click_y) <= double_click_distance) + { + + gdk_event.button.type = GDK_2BUTTON_PRESS; + display->button_click_number = 0; + } + else + { + gdk_event.button.type = GDK_BUTTON_PRESS; + display->button_click_number = xevent->xbutton.button; + display->button_click_window = xevent->xbutton.window; + display->button_click_time = xevent->xbutton.time; + display->button_click_x = xevent->xbutton.x; + display->button_click_y = xevent->xbutton.y; + } + } + else + { + gdk_event.button.type = GDK_BUTTON_RELEASE; + } + + gdk_event.button.window = gdk_window; + gdk_event.button.button = xevent->xbutton.button; + gdk_event.button.time = xevent->xbutton.time; + gdk_event.button.x = xevent->xbutton.x; + gdk_event.button.y = xevent->xbutton.y; + gdk_event.button.x_root = xevent->xbutton.x_root; + gdk_event.button.y_root = xevent->xbutton.y_root; + + break; + + case MotionNotify: + gdk_event.motion.type = GDK_MOTION_NOTIFY; + gdk_event.motion.window = gdk_window; + break; + + case EnterNotify: + + case LeaveNotify: + gdk_event.crossing.type = xevent->type == EnterNotify ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY; + gdk_event.crossing.window = gdk_window; + gdk_event.crossing.x = xevent->xcrossing.x; + gdk_event.crossing.y = xevent->xcrossing.y; + break; + + default: + g_assert_not_reached(); + break; + } + + /* If we've gotten here, we've filled in the gdk_event and should send it on */ + gtk_main_do_event(&gdk_event); + return TRUE; +} + +/** + * This is the most important function in the whole program. It is the heart, + * it is the nexus, it is the Grand Central Station of Marco's world. + * When we create a MetaDisplay, we ask GDK to pass *all* events for *all* + * windows to this function. So every time anything happens that we might + * want to know about, this function gets called. You see why it gets a bit + * busy around here. Most of this function is a ginormous switch statement + * dealing with all the kinds of events that might turn up. + * + * \param event The event that just happened + * \param data The MetaDisplay that events are coming from, cast to a gpointer + * so that it can be sent to a callback + * + * \ingroup main + */ +static gboolean event_callback(XEvent* event, gpointer data) +{ + MetaWindow *window; + MetaWindow *property_for_window; + MetaDisplay *display; + Window modified; + gboolean frame_was_receiver; + gboolean filter_out_event; + + display = data; + +#ifdef WITH_VERBOSE_MODE + if (dump_events) + meta_spew_event (display, event); +#endif + +#ifdef HAVE_STARTUP_NOTIFICATION + sn_display_process_event (display->sn_display, event); +#endif + + filter_out_event = FALSE; + display->current_time = event_get_time (display, event); + display->xinerama_cache_invalidated = TRUE; + + modified = event_get_modified_window (display, event); + + if (event->type == ButtonPress) + { + /* filter out scrollwheel */ + if (event->xbutton.button == 4 || + event->xbutton.button == 5) + return FALSE; + } + else if (event->type == UnmapNotify) + { + if (meta_ui_window_should_not_cause_focus (display->xdisplay, + modified)) + { + add_ignored_serial (display, event->xany.serial); + meta_topic (META_DEBUG_FOCUS, + "Adding EnterNotify serial %lu to ignored focus serials\n", + event->xany.serial); + } + } + else if (event->type == LeaveNotify && + event->xcrossing.mode == NotifyUngrab && + modified == display->ungrab_should_not_cause_focus_window) + { + add_ignored_serial (display, event->xany.serial); + meta_topic (META_DEBUG_FOCUS, + "Adding LeaveNotify serial %lu to ignored focus serials\n", + event->xany.serial); + } + + if (modified != None) + window = meta_display_lookup_x_window (display, modified); + else + window = NULL; + + /* We only want to respond to _NET_WM_USER_TIME property notify + * events on _NET_WM_USER_TIME_WINDOW windows; in particular, + * responding to UnmapNotify events is kind of bad. + */ + property_for_window = NULL; + if (window && modified == window->user_time_window) + { + property_for_window = window; + window = NULL; + } + + + frame_was_receiver = FALSE; + if (window && + window->frame && + modified == window->frame->xwindow) + { + /* Note that if the frame and the client both have an + * XGrabButton (as is normal with our setup), the event + * goes to the frame. + */ + frame_was_receiver = TRUE; + meta_topic (META_DEBUG_EVENTS, "Frame was receiver of event for %s\n", + window->desc); + } + +#ifdef HAVE_XSYNC + if (META_DISPLAY_HAS_XSYNC (display) && + event->type == (display->xsync_event_base + XSyncAlarmNotify) && + ((XSyncAlarmNotifyEvent*)event)->alarm == display->grab_sync_request_alarm) + { + filter_out_event = TRUE; /* GTK doesn't want to see this really */ + + if (display->grab_op != META_GRAB_OP_NONE && + display->grab_window != NULL && + grab_op_is_mouse (display->grab_op)) + meta_window_handle_mouse_grab_op_event (display->grab_window, event); + } +#endif /* HAVE_XSYNC */ + +#ifdef HAVE_SHAPE + if (META_DISPLAY_HAS_SHAPE (display) && + event->type == (display->shape_event_base + ShapeNotify)) + { + filter_out_event = TRUE; /* GTK doesn't want to see this really */ + + if (window && !frame_was_receiver) + { + XShapeEvent *sev = (XShapeEvent*) event; + + if (sev->kind == ShapeBounding) + { + if (sev->shaped && !window->has_shape) + { + window->has_shape = TRUE; + meta_topic (META_DEBUG_SHAPES, + "Window %s now has a shape\n", + window->desc); + } + else if (!sev->shaped && window->has_shape) + { + window->has_shape = FALSE; + meta_topic (META_DEBUG_SHAPES, + "Window %s no longer has a shape\n", + window->desc); + } + else + { + meta_topic (META_DEBUG_SHAPES, + "Window %s shape changed\n", + window->desc); + } + + if (window->frame) + { + window->frame->need_reapply_frame_shape = TRUE; + meta_warning("from event callback\n"); + meta_window_queue (window, META_QUEUE_MOVE_RESIZE); + } + } + } + else + { + meta_topic (META_DEBUG_SHAPES, + "ShapeNotify not on a client window (window %s frame_was_receiver = %d)\n", + window ? window->desc : "(none)", + frame_was_receiver); + } + } +#endif /* HAVE_SHAPE */ + + if (window && ((event->type == KeyPress) || (event->type == ButtonPress))) + { + if (CurrentTime == display->current_time) + { + /* We can't use missing (i.e. invalid) timestamps to set user time, + * nor do we want to use them to sanity check other timestamps. + * See bug 313490 for more details. + */ + meta_warning ("Event has no timestamp! You may be using a broken " + "program such as xse. Please ask the authors of that " + "program to fix it.\n"); + } + else + { + meta_window_set_user_time (window, display->current_time); + sanity_check_timestamps (display, display->current_time); + } + } + + switch (event->type) + { + case KeyPress: + case KeyRelease: + meta_display_process_key_event (display, window, event); + break; + case ButtonPress: + if ((window && + grab_op_is_mouse (display->grab_op) && + display->grab_button != (int) event->xbutton.button && + display->grab_window == window) || + grab_op_is_keyboard (display->grab_op)) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Ending grab op %u on window %s due to button press\n", + display->grab_op, + (display->grab_window ? + display->grab_window->desc : + "none")); + if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op)) + { + MetaScreen *screen; + meta_topic (META_DEBUG_WINDOW_OPS, + "Syncing to old stack positions.\n"); + screen = + meta_display_screen_for_root (display, event->xany.window); + + if (screen!=NULL) + meta_stack_set_positions (screen->stack, + display->grab_old_window_stacking); + } + meta_display_end_grab_op (display, + event->xbutton.time); + } + else if (window && display->grab_op == META_GRAB_OP_NONE) + { + gboolean begin_move = FALSE; + unsigned int grab_mask; + gboolean unmodified; + + grab_mask = display->window_grab_modifiers; + if (g_getenv ("MARCO_DEBUG_BUTTON_GRABS")) + grab_mask |= ControlMask; + + /* Two possible sources of an unmodified event; one is a + * client that's letting button presses pass through to the + * frame, the other is our focus_window_grab on unmodified + * button 1. So for all such events we focus the window. + */ + unmodified = (event->xbutton.state & grab_mask) == 0; + + if (unmodified || + event->xbutton.button == 1) + { + /* don't focus if frame received, will be lowered in + * frames.c or special-cased if the click was on a + * minimize/close button. + */ + if (!frame_was_receiver) + { + if (meta_prefs_get_raise_on_click ()) + meta_window_raise (window); + else + meta_topic (META_DEBUG_FOCUS, + "Not raising window on click due to don't-raise-on-click option\n"); + + /* Don't focus panels--they must explicitly request focus. + * See bug 160470 + */ + if (window->type != META_WINDOW_DOCK) + { + meta_topic (META_DEBUG_FOCUS, + "Focusing %s due to unmodified button %u press (display.c)\n", + window->desc, event->xbutton.button); + meta_window_focus (window, event->xbutton.time); + } + else + /* However, do allow terminals to lose focus due to new + * window mappings after the user clicks on a panel. + */ + display->allow_terminal_deactivation = TRUE; + } + + /* you can move on alt-click but not on + * the click-to-focus + */ + if (!unmodified) + begin_move = TRUE; + } + else if (!unmodified && event->xbutton.button == meta_prefs_get_mouse_button_resize()) + { + if (window->has_resize_func) + { + gboolean north, south; + gboolean west, east; + int root_x, root_y; + MetaGrabOp op; + + meta_window_get_position (window, &root_x, &root_y); + + west = event->xbutton.x_root < (root_x + 1 * window->rect.width / 3); + east = event->xbutton.x_root > (root_x + 2 * window->rect.width / 3); + north = event->xbutton.y_root < (root_y + 1 * window->rect.height / 3); + south = event->xbutton.y_root > (root_y + 2 * window->rect.height / 3); + + if (north && west) + op = META_GRAB_OP_RESIZING_NW; + else if (north && east) + op = META_GRAB_OP_RESIZING_NE; + else if (south && west) + op = META_GRAB_OP_RESIZING_SW; + else if (south && east) + op = META_GRAB_OP_RESIZING_SE; + else if (north) + op = META_GRAB_OP_RESIZING_N; + else if (west) + op = META_GRAB_OP_RESIZING_W; + else if (east) + op = META_GRAB_OP_RESIZING_E; + else if (south) + op = META_GRAB_OP_RESIZING_S; + else /* Middle region is no-op to avoid user triggering wrong action */ + op = META_GRAB_OP_NONE; + + if (op != META_GRAB_OP_NONE) + meta_display_begin_grab_op (display, + window->screen, + window, + op, + TRUE, + FALSE, + event->xbutton.button, + 0, + event->xbutton.time, + event->xbutton.x_root, + event->xbutton.y_root); + } + } + else if (event->xbutton.button == meta_prefs_get_mouse_button_menu()) + { + if (meta_prefs_get_raise_on_click ()) + meta_window_raise (window); + meta_window_show_menu (window, + event->xbutton.x_root, + event->xbutton.y_root, + event->xbutton.button, + event->xbutton.time); + } + + if (!frame_was_receiver && unmodified) + { + /* This is from our synchronous grab since + * it has no modifiers and was on the client window + */ + int mode; + + /* When clicking a different app in click-to-focus + * in application-based mode, and the different + * app is not a dock or desktop, eat the focus click. + */ + if (meta_prefs_get_focus_mode () == META_FOCUS_MODE_CLICK && + meta_prefs_get_application_based () && + !window->has_focus && + window->type != META_WINDOW_DOCK && + window->type != META_WINDOW_DESKTOP && + (display->focus_window == NULL || + !meta_window_same_application (window, + display->focus_window))) + mode = AsyncPointer; /* eat focus click */ + else + mode = ReplayPointer; /* give event back */ + + meta_verbose ("Allowing events mode %s time %u\n", + mode == AsyncPointer ? "AsyncPointer" : "ReplayPointer", + (unsigned int)event->xbutton.time); + + XAllowEvents (display->xdisplay, + mode, event->xbutton.time); + } + + if (begin_move && window->has_move_func) + { + meta_display_begin_grab_op (display, + window->screen, + window, + META_GRAB_OP_MOVING, + TRUE, + FALSE, + event->xbutton.button, + 0, + event->xbutton.time, + event->xbutton.x_root, + event->xbutton.y_root); + } + } + break; + case ButtonRelease: + if (display->grab_window == window && + grab_op_is_mouse (display->grab_op)) + meta_window_handle_mouse_grab_op_event (window, event); + break; + case MotionNotify: + if (display->grab_window == window && + grab_op_is_mouse (display->grab_op)) + meta_window_handle_mouse_grab_op_event (window, event); + break; + case EnterNotify: + if (display->grab_window == window && + grab_op_is_mouse (display->grab_op)) + { + meta_window_handle_mouse_grab_op_event (window, event); + break; + } + + /* If the mouse switches screens, active the default window on the new + * screen; this will make keybindings and workspace-launched items + * actually appear on the right screen. + */ + { + MetaScreen *new_screen = + meta_display_screen_for_root (display, event->xcrossing.root); + + if (new_screen != NULL && display->active_screen != new_screen) + meta_workspace_focus_default_window (new_screen->active_workspace, + NULL, + event->xcrossing.time); + } + + /* Check if we've entered a window; do this even if window->has_focus to + * avoid races. + */ + if (window && !serial_is_ignored (display, event->xany.serial) && + event->xcrossing.mode != NotifyGrab && + event->xcrossing.mode != NotifyUngrab && + event->xcrossing.detail != NotifyInferior && + meta_display_focus_sentinel_clear (display)) + { + switch (meta_prefs_get_focus_mode ()) + { + case META_FOCUS_MODE_SLOPPY: + case META_FOCUS_MODE_MOUSE: + display->mouse_mode = TRUE; + if (window->type != META_WINDOW_DOCK && + window->type != META_WINDOW_DESKTOP) + { + meta_topic (META_DEBUG_FOCUS, + "Focusing %s due to enter notify with serial %lu " + "at time %lu, and setting display->mouse_mode to " + "TRUE.\n", + window->desc, + event->xany.serial, + event->xcrossing.time); + + meta_window_focus (window, event->xcrossing.time); + + /* stop ignoring stuff */ + reset_ignores (display); + + if (meta_prefs_get_auto_raise ()) + { + meta_display_queue_autoraise_callback (display, window); + } + else + { + meta_topic (META_DEBUG_FOCUS, + "Auto raise is disabled\n"); + } + } + /* In mouse focus mode, we defocus when the mouse *enters* + * the DESKTOP window, instead of defocusing on LeaveNotify. + * This is because having the mouse enter override-redirect + * child windows unfortunately causes LeaveNotify events that + * we can't distinguish from the mouse actually leaving the + * toplevel window as we expect. But, since we filter out + * EnterNotify events on override-redirect windows, this + * alternative mechanism works great. + */ + if (window->type == META_WINDOW_DESKTOP && + meta_prefs_get_focus_mode() == META_FOCUS_MODE_MOUSE && + display->expected_focus_window != NULL) + { + meta_topic (META_DEBUG_FOCUS, + "Unsetting focus from %s due to mouse entering " + "the DESKTOP window\n", + display->expected_focus_window->desc); + meta_display_focus_the_no_focus_window (display, + window->screen, + event->xcrossing.time); + } + break; + case META_FOCUS_MODE_CLICK: + break; + } + + if (window->type == META_WINDOW_DOCK) + meta_window_raise (window); + } + break; + case LeaveNotify: + if (display->grab_window == window && + grab_op_is_mouse (display->grab_op)) + meta_window_handle_mouse_grab_op_event (window, event); + else if (window != NULL) + { + if (window->type == META_WINDOW_DOCK && + event->xcrossing.mode != NotifyGrab && + event->xcrossing.mode != NotifyUngrab && + !window->has_focus) + meta_window_lower (window); + } + break; + case FocusIn: + case FocusOut: + if (window) + { + meta_window_notify_focus (window, event); + } + else if (meta_display_xwindow_is_a_no_focus_window (display, + event->xany.window)) + { + meta_topic (META_DEBUG_FOCUS, + "Focus %s event received on no_focus_window 0x%lx " + "mode %s detail %s\n", + event->type == FocusIn ? "in" : + event->type == FocusOut ? "out" : + "???", + event->xany.window, + meta_event_mode_to_string (event->xfocus.mode), + meta_event_detail_to_string (event->xfocus.detail)); + } + else + { + MetaScreen *screen = + meta_display_screen_for_root(display, + event->xany.window); + if (screen == NULL) + break; + + meta_topic (META_DEBUG_FOCUS, + "Focus %s event received on root window 0x%lx " + "mode %s detail %s\n", + event->type == FocusIn ? "in" : + event->type == FocusOut ? "out" : + "???", + event->xany.window, + meta_event_mode_to_string (event->xfocus.mode), + meta_event_detail_to_string (event->xfocus.detail)); + + if (event->type == FocusIn && + event->xfocus.detail == NotifyDetailNone) + { + meta_topic (META_DEBUG_FOCUS, + "Focus got set to None, probably due to " + "brain-damage in the X protocol (see bug " + "125492). Setting the default focus window.\n"); + meta_workspace_focus_default_window (screen->active_workspace, + NULL, + meta_display_get_current_time_roundtrip (display)); + } + else if (event->type == FocusIn && + event->xfocus.mode == NotifyNormal && + event->xfocus.detail == NotifyInferior) + { + meta_topic (META_DEBUG_FOCUS, + "Focus got set to root window, probably due to " + "mate-session logout dialog usage (see bug " + "153220). Setting the default focus window.\n"); + meta_workspace_focus_default_window (screen->active_workspace, + NULL, + meta_display_get_current_time_roundtrip (display)); + } + + } + break; + case KeymapNotify: + break; + case Expose: + break; + case GraphicsExpose: + break; + case NoExpose: + break; + case VisibilityNotify: + break; + case CreateNotify: + break; + + case DestroyNotify: + if (window) + { + /* FIXME: It sucks that DestroyNotify events don't come with + * a timestamp; could we do something better here? Maybe X + * will change one day? + */ + guint32 timestamp; + timestamp = meta_display_get_current_time_roundtrip (display); + + if (display->grab_op != META_GRAB_OP_NONE && + display->grab_window == window) + meta_display_end_grab_op (display, timestamp); + + if (frame_was_receiver) + { + meta_warning ("Unexpected destruction of frame 0x%lx, not sure if this should silently fail or be considered a bug\n", + window->frame->xwindow); + meta_error_trap_push (display); + meta_window_destroy_frame (window->frame->window); + meta_error_trap_pop (display, FALSE); + } + else + { + /* Unmanage destroyed window */ + meta_window_free (window, timestamp); + window = NULL; + } + } + break; + case UnmapNotify: + if (window) + { + /* FIXME: It sucks that UnmapNotify events don't come with + * a timestamp; could we do something better here? Maybe X + * will change one day? + */ + guint32 timestamp; + timestamp = meta_display_get_current_time_roundtrip (display); + + if (display->grab_op != META_GRAB_OP_NONE && + display->grab_window == window && + ((window->frame == NULL) || !window->frame->mapped)) + meta_display_end_grab_op (display, timestamp); + + if (!frame_was_receiver) + { + if (window->unmaps_pending == 0) + { + meta_topic (META_DEBUG_WINDOW_STATE, + "Window %s withdrawn\n", + window->desc); + + meta_effect_run_close (window, NULL, NULL); + + /* Unmanage withdrawn window */ + window->withdrawn = TRUE; + meta_window_free (window, timestamp); + window = NULL; + } + else + { + window->unmaps_pending -= 1; + meta_topic (META_DEBUG_WINDOW_STATE, + "Received pending unmap, %d now pending\n", + window->unmaps_pending); + } + } + + /* Unfocus on UnmapNotify, do this after the possible + * window_free above so that window_free can see if window->has_focus + * and move focus to another window + */ + if (window) + meta_window_notify_focus (window, event); + } + break; + case MapNotify: + break; + case MapRequest: + if (window == NULL) + { + window = meta_window_new (display, event->xmaprequest.window, + FALSE); + } + /* if frame was receiver it's some malicious send event or something */ + else if (!frame_was_receiver && window) + { + meta_verbose ("MapRequest on %s mapped = %d minimized = %d\n", + window->desc, window->mapped, window->minimized); + if (window->minimized) + { + meta_window_unminimize (window); + if (window->workspace != window->screen->active_workspace) + { + meta_verbose ("Changing workspace due to MapRequest mapped = %d minimized = %d\n", + window->mapped, window->minimized); + meta_window_change_workspace (window, + window->screen->active_workspace); + } + } + } + break; + case ReparentNotify: + break; + case ConfigureNotify: + /* Handle screen resize */ + { + MetaScreen *screen; + + screen = meta_display_screen_for_root (display, + event->xconfigure.window); + + if (screen != NULL) + { +#ifdef HAVE_RANDR + /* do the resize the official way */ + XRRUpdateConfiguration (event); +#else + /* poke around in Xlib */ + screen->xscreen->width = event->xconfigure.width; + screen->xscreen->height = event->xconfigure.height; +#endif + + meta_screen_resize (screen, + event->xconfigure.width, + event->xconfigure.height); + } + } + break; + case ConfigureRequest: + /* This comment and code is found in both twm and fvwm */ + /* + * According to the July 27, 1988 ICCCM draft, we should ignore size and + * position fields in the WM_NORMAL_HINTS property when we map a window. + * Instead, we'll read the current geometry. Therefore, we should respond + * to configuration requests for windows which have never been mapped. + */ + if (window == NULL) + { + unsigned int xwcm; + XWindowChanges xwc; + + xwcm = event->xconfigurerequest.value_mask & + (CWX | CWY | CWWidth | CWHeight | CWBorderWidth); + + xwc.x = event->xconfigurerequest.x; + xwc.y = event->xconfigurerequest.y; + xwc.width = event->xconfigurerequest.width; + xwc.height = event->xconfigurerequest.height; + xwc.border_width = event->xconfigurerequest.border_width; + + meta_verbose ("Configuring withdrawn window to %d,%d %dx%d border %d (some values may not be in mask)\n", + xwc.x, xwc.y, xwc.width, xwc.height, xwc.border_width); + meta_error_trap_push (display); + XConfigureWindow (display->xdisplay, event->xconfigurerequest.window, + xwcm, &xwc); + meta_error_trap_pop (display, FALSE); + } + else + { + if (!frame_was_receiver) + meta_window_configure_request (window, event); + } + break; + case GravityNotify: + break; + case ResizeRequest: + break; + case CirculateNotify: + break; + case CirculateRequest: + break; + case PropertyNotify: + { + MetaGroup *group; + MetaScreen *screen; + + if (window && !frame_was_receiver) + meta_window_property_notify (window, event); + else if (property_for_window && !frame_was_receiver) + meta_window_property_notify (property_for_window, event); + + group = meta_display_lookup_group (display, + event->xproperty.window); + if (group != NULL) + meta_group_property_notify (group, event); + + screen = NULL; + if (window == NULL && + group == NULL) /* window/group != NULL means it wasn't a root window */ + screen = meta_display_screen_for_root (display, + event->xproperty.window); + + if (screen != NULL) + { + if (event->xproperty.atom == + display->atom__NET_DESKTOP_LAYOUT) + meta_screen_update_workspace_layout (screen); + else if (event->xproperty.atom == + display->atom__NET_DESKTOP_NAMES) + meta_screen_update_workspace_names (screen); +#if 0 + else if (event->xproperty.atom == + display->atom__NET_RESTACK_WINDOW) + handle_net_restack_window (display, event); +#endif + + /* we just use this property as a sentinel to avoid + * certain race conditions. See the comment for the + * sentinel_counter variable declaration in display.h + */ + if (event->xproperty.atom == + display->atom__MARCO_SENTINEL) + { + meta_display_decrement_focus_sentinel (display); + } + } + } + break; + case SelectionClear: + /* do this here instead of at end of function + * so we can return + */ + + /* FIXME: Clearing display->current_time here makes no sense to + * me; who put this here and why? + */ + display->current_time = CurrentTime; + + process_selection_clear (display, event); + /* Note that processing that may have resulted in + * closing the display... so return right away. + */ + return FALSE; + case SelectionRequest: + process_selection_request (display, event); + break; + case SelectionNotify: + break; + case ColormapNotify: + if (window && !frame_was_receiver) + window->colormap = event->xcolormap.colormap; + break; + case ClientMessage: + if (window) + { + if (!frame_was_receiver) + meta_window_client_message (window, event); + } + else + { + MetaScreen *screen; + + screen = meta_display_screen_for_root (display, + event->xclient.window); + + if (screen) + { + if (event->xclient.message_type == + display->atom__NET_CURRENT_DESKTOP) + { + int space; + MetaWorkspace *workspace; + guint32 time; + + space = event->xclient.data.l[0]; + time = event->xclient.data.l[1]; + + meta_verbose ("Request to change current workspace to %d with " + "specified timestamp of %u\n", + space, time); + + workspace = + meta_screen_get_workspace_by_index (screen, + space); + + /* Handle clients using the older version of the spec... */ + if (time == 0 && workspace) + { + meta_warning ("Received a NET_CURRENT_DESKTOP message " + "from a broken (outdated) client who sent " + "a 0 timestamp\n"); + time = meta_display_get_current_time_roundtrip (display); + } + + if (workspace) + meta_workspace_activate (workspace, time); + else + meta_verbose ("Don't know about workspace %d\n", space); + } + else if (event->xclient.message_type == + display->atom__NET_NUMBER_OF_DESKTOPS) + { + int num_spaces; + + num_spaces = event->xclient.data.l[0]; + + meta_verbose ("Request to set number of workspaces to %d\n", + num_spaces); + + meta_prefs_set_num_workspaces (num_spaces); + } + else if (event->xclient.message_type == + display->atom__NET_SHOWING_DESKTOP) + { + gboolean showing_desktop; + guint32 timestamp; + + showing_desktop = event->xclient.data.l[0] != 0; + /* FIXME: Braindead protocol doesn't have a timestamp */ + timestamp = meta_display_get_current_time_roundtrip (display); + meta_verbose ("Request to %s desktop\n", + showing_desktop ? "show" : "hide"); + + if (showing_desktop) + meta_screen_show_desktop (screen, timestamp); + else + { + meta_screen_unshow_desktop (screen); + meta_workspace_focus_default_window (screen->active_workspace, NULL, timestamp); + } + } + else if (event->xclient.message_type == + display->atom__MARCO_RESTART_MESSAGE) + { + meta_verbose ("Received restart request\n"); + meta_restart (); + } + else if (event->xclient.message_type == + display->atom__MARCO_RELOAD_THEME_MESSAGE) + { + meta_verbose ("Received reload theme request\n"); + meta_ui_set_current_theme (meta_prefs_get_theme (), + TRUE); + meta_display_retheme_all (); + } + else if (event->xclient.message_type == + display->atom__MARCO_SET_KEYBINDINGS_MESSAGE) + { + meta_verbose ("Received set keybindings request = %d\n", + (int) event->xclient.data.l[0]); + meta_set_keybindings_disabled (!event->xclient.data.l[0]); + } + else if (event->xclient.message_type == + display->atom__MARCO_TOGGLE_VERBOSE) + { + meta_verbose ("Received toggle verbose message\n"); + meta_set_verbose (!meta_is_verbose ()); + } + else if (event->xclient.message_type == + display->atom_WM_PROTOCOLS) + { + meta_verbose ("Received WM_PROTOCOLS message\n"); + + if ((Atom)event->xclient.data.l[0] == display->atom__NET_WM_PING) + { + process_pong_message (display, event); + + /* We don't want ping reply events going into + * the GTK+ event loop because gtk+ will treat + * them as ping requests and send more replies. + */ + filter_out_event = TRUE; + } + } + } + + if (event->xclient.message_type == + display->atom__NET_REQUEST_FRAME_EXTENTS) + { + meta_verbose ("Received _NET_REQUEST_FRAME_EXTENTS message\n"); + process_request_frame_extents (display, event); + } + } + break; + case MappingNotify: + { + gboolean ignore_current; + + ignore_current = FALSE; + + /* Check whether the next event is an identical MappingNotify + * event. If it is, ignore the current event, we'll update + * when we get the next one. + */ + if (XPending (display->xdisplay)) + { + XEvent next_event; + + XPeekEvent (display->xdisplay, &next_event); + + if (next_event.type == MappingNotify && + next_event.xmapping.request == event->xmapping.request) + ignore_current = TRUE; + } + + if (!ignore_current) + { + /* Let XLib know that there is a new keyboard mapping. + */ + XRefreshKeyboardMapping (&event->xmapping); + meta_display_process_mapping_event (display, event); + } + } + break; + default: +#ifdef HAVE_XKB + if (event->type == display->xkb_base_event_type) + { + XkbAnyEvent *xkb_ev = (XkbAnyEvent *) event; + + switch (xkb_ev->xkb_type) + { + case XkbBellNotify: + if (XSERVER_TIME_IS_BEFORE(display->last_bell_time, + xkb_ev->time - 100)) + { + display->last_bell_time = xkb_ev->time; + meta_bell_notify (display, xkb_ev); + } + break; + } + } +#endif + break; + } + + if (display->compositor) + { + meta_compositor_process_event (display->compositor, event, window); + } + + /* generates event on wrong window. + * https://github.com/stefano-k/Mate-Desktop-Environment/commit/b0e5fb03eb21dae8f02692f11ef391bfc5ccba33 + */ + if (maybe_send_event_to_gtk(display, event)) + { + filter_out_event = TRUE; + } + + display->current_time = CurrentTime; + return filter_out_event; +} + +/* Return the window this has to do with, if any, rather + * than the frame or root window that was selecting + * for substructure + */ +static Window +event_get_modified_window (MetaDisplay *display, + XEvent *event) +{ + switch (event->type) + { + case KeyPress: + case KeyRelease: + case ButtonPress: + case ButtonRelease: + case MotionNotify: + case FocusIn: + case FocusOut: + case KeymapNotify: + case Expose: + case GraphicsExpose: + case NoExpose: + case VisibilityNotify: + case ResizeRequest: + case PropertyNotify: + case SelectionClear: + case SelectionRequest: + case SelectionNotify: + case ColormapNotify: + case ClientMessage: + case EnterNotify: + case LeaveNotify: + return event->xany.window; + + case CreateNotify: + return event->xcreatewindow.window; + + case DestroyNotify: + return event->xdestroywindow.window; + + case UnmapNotify: + return event->xunmap.window; + + case MapNotify: + return event->xmap.window; + + case MapRequest: + return event->xmaprequest.window; + + case ReparentNotify: + return event->xreparent.window; + + case ConfigureNotify: + return event->xconfigure.window; + + case ConfigureRequest: + return event->xconfigurerequest.window; + + case GravityNotify: + return event->xgravity.window; + + case CirculateNotify: + return event->xcirculate.window; + + case CirculateRequest: + return event->xcirculaterequest.window; + + case MappingNotify: + return None; + + default: +#ifdef HAVE_SHAPE + if (META_DISPLAY_HAS_SHAPE (display) && + event->type == (display->shape_event_base + ShapeNotify)) + { + XShapeEvent *sev = (XShapeEvent*) event; + return sev->window; + } +#endif + + return None; + } +} + +static guint32 +event_get_time (MetaDisplay *display, + XEvent *event) +{ + switch (event->type) + { + case KeyPress: + case KeyRelease: + return event->xkey.time; + + case ButtonPress: + case ButtonRelease: + return event->xbutton.time; + + case MotionNotify: + return event->xmotion.time; + + case PropertyNotify: + return event->xproperty.time; + + case SelectionClear: + case SelectionRequest: + case SelectionNotify: + return event->xselection.time; + + case EnterNotify: + case LeaveNotify: + return event->xcrossing.time; + + case FocusIn: + case FocusOut: + case KeymapNotify: + case Expose: + case GraphicsExpose: + case NoExpose: + case MapNotify: + case UnmapNotify: + case VisibilityNotify: + case ResizeRequest: + case ColormapNotify: + case ClientMessage: + case CreateNotify: + case DestroyNotify: + case MapRequest: + case ReparentNotify: + case ConfigureNotify: + case ConfigureRequest: + case GravityNotify: + case CirculateNotify: + case CirculateRequest: + case MappingNotify: + default: + return CurrentTime; + } +} + +#ifdef WITH_VERBOSE_MODE +const char* +meta_event_detail_to_string (int d) +{ + const char *detail = "???"; + switch (d) + { + /* We are an ancestor in the A<->B focus change relationship */ + case NotifyAncestor: + detail = "NotifyAncestor"; + break; + case NotifyDetailNone: + detail = "NotifyDetailNone"; + break; + /* We are a descendant in the A<->B focus change relationship */ + case NotifyInferior: + detail = "NotifyInferior"; + break; + case NotifyNonlinear: + detail = "NotifyNonlinear"; + break; + case NotifyNonlinearVirtual: + detail = "NotifyNonlinearVirtual"; + break; + case NotifyPointer: + detail = "NotifyPointer"; + break; + case NotifyPointerRoot: + detail = "NotifyPointerRoot"; + break; + case NotifyVirtual: + detail = "NotifyVirtual"; + break; + } + + return detail; +} +#endif /* WITH_VERBOSE_MODE */ + +#ifdef WITH_VERBOSE_MODE +const char* +meta_event_mode_to_string (int m) +{ + const char *mode = "???"; + switch (m) + { + case NotifyNormal: + mode = "NotifyNormal"; + break; + case NotifyGrab: + mode = "NotifyGrab"; + break; + case NotifyUngrab: + mode = "NotifyUngrab"; + break; + /* not sure any X implementations are missing this, but + * it seems to be absent from some docs. + */ +#ifdef NotifyWhileGrabbed + case NotifyWhileGrabbed: + mode = "NotifyWhileGrabbed"; + break; +#endif + } + + return mode; +} +#endif /* WITH_VERBOSE_MODE */ + +#ifdef WITH_VERBOSE_MODE +static const char* +stack_mode_to_string (int mode) +{ + switch (mode) + { + case Above: + return "Above"; + case Below: + return "Below"; + case TopIf: + return "TopIf"; + case BottomIf: + return "BottomIf"; + case Opposite: + return "Opposite"; + } + + return "Unknown"; +} +#endif /* WITH_VERBOSE_MODE */ + +#ifdef WITH_VERBOSE_MODE +static char* +key_event_description (Display *xdisplay, + XEvent *event) +{ + KeySym keysym; + const char *str; + + keysym = XKeycodeToKeysym (xdisplay, event->xkey.keycode, 0); + + str = XKeysymToString (keysym); + + return g_strdup_printf ("Key '%s' state 0x%x", + str ? str : "none", event->xkey.state); +} +#endif /* WITH_VERBOSE_MODE */ + +#ifdef HAVE_XSYNC +#ifdef WITH_VERBOSE_MODE +static gint64 +sync_value_to_64 (const XSyncValue *value) +{ + gint64 v; + + v = XSyncValueLow32 (*value); + v |= (((gint64)XSyncValueHigh32 (*value)) << 32); + + return v; +} +#endif /* WITH_VERBOSE_MODE */ + +#ifdef WITH_VERBOSE_MODE +static const char* +alarm_state_to_string (XSyncAlarmState state) +{ + switch (state) + { + case XSyncAlarmActive: + return "Active"; + case XSyncAlarmInactive: + return "Inactive"; + case XSyncAlarmDestroyed: + return "Destroyed"; + default: + return "(unknown)"; + } +} +#endif /* WITH_VERBOSE_MODE */ + +#endif /* HAVE_XSYNC */ + +#ifdef WITH_VERBOSE_MODE +static void +meta_spew_event (MetaDisplay *display, + XEvent *event) +{ + const char *name = NULL; + char *extra = NULL; + char *winname; + MetaScreen *screen; + + if (!meta_is_verbose()) + return; + + /* filter overnumerous events */ + if (event->type == Expose || event->type == MotionNotify || + event->type == NoExpose) + return; + + switch (event->type) + { + case KeyPress: + name = "KeyPress"; + extra = key_event_description (display->xdisplay, event); + break; + case KeyRelease: + name = "KeyRelease"; + extra = key_event_description (display->xdisplay, event); + break; + case ButtonPress: + name = "ButtonPress"; + extra = g_strdup_printf ("button %u state 0x%x x %d y %d root 0x%lx same_screen %d", + event->xbutton.button, + event->xbutton.state, + event->xbutton.x, + event->xbutton.y, + event->xbutton.root, + event->xbutton.same_screen); + break; + case ButtonRelease: + name = "ButtonRelease"; + extra = g_strdup_printf ("button %u state 0x%x x %d y %d root 0x%lx same_screen %d", + event->xbutton.button, + event->xbutton.state, + event->xbutton.x, + event->xbutton.y, + event->xbutton.root, + event->xbutton.same_screen); + break; + case MotionNotify: + name = "MotionNotify"; + extra = g_strdup_printf ("win: 0x%lx x: %d y: %d", + event->xmotion.window, + event->xmotion.x, + event->xmotion.y); + break; + case EnterNotify: + name = "EnterNotify"; + extra = g_strdup_printf ("win: 0x%lx root: 0x%lx subwindow: 0x%lx mode: %s detail: %s focus: %d x: %d y: %d", + event->xcrossing.window, + event->xcrossing.root, + event->xcrossing.subwindow, + meta_event_mode_to_string (event->xcrossing.mode), + meta_event_detail_to_string (event->xcrossing.detail), + event->xcrossing.focus, + event->xcrossing.x, + event->xcrossing.y); + break; + case LeaveNotify: + name = "LeaveNotify"; + extra = g_strdup_printf ("win: 0x%lx root: 0x%lx subwindow: 0x%lx mode: %s detail: %s focus: %d x: %d y: %d", + event->xcrossing.window, + event->xcrossing.root, + event->xcrossing.subwindow, + meta_event_mode_to_string (event->xcrossing.mode), + meta_event_detail_to_string (event->xcrossing.detail), + event->xcrossing.focus, + event->xcrossing.x, + event->xcrossing.y); + break; + case FocusIn: + name = "FocusIn"; + extra = g_strdup_printf ("detail: %s mode: %s\n", + meta_event_detail_to_string (event->xfocus.detail), + meta_event_mode_to_string (event->xfocus.mode)); + break; + case FocusOut: + name = "FocusOut"; + extra = g_strdup_printf ("detail: %s mode: %s\n", + meta_event_detail_to_string (event->xfocus.detail), + meta_event_mode_to_string (event->xfocus.mode)); + break; + case KeymapNotify: + name = "KeymapNotify"; + break; + case Expose: + name = "Expose"; + break; + case GraphicsExpose: + name = "GraphicsExpose"; + break; + case NoExpose: + name = "NoExpose"; + break; + case VisibilityNotify: + name = "VisibilityNotify"; + break; + case CreateNotify: + name = "CreateNotify"; + extra = g_strdup_printf ("parent: 0x%lx window: 0x%lx", + event->xcreatewindow.parent, + event->xcreatewindow.window); + break; + case DestroyNotify: + name = "DestroyNotify"; + extra = g_strdup_printf ("event: 0x%lx window: 0x%lx", + event->xdestroywindow.event, + event->xdestroywindow.window); + break; + case UnmapNotify: + name = "UnmapNotify"; + extra = g_strdup_printf ("event: 0x%lx window: 0x%lx from_configure: %d", + event->xunmap.event, + event->xunmap.window, + event->xunmap.from_configure); + break; + case MapNotify: + name = "MapNotify"; + extra = g_strdup_printf ("event: 0x%lx window: 0x%lx override_redirect: %d", + event->xmap.event, + event->xmap.window, + event->xmap.override_redirect); + break; + case MapRequest: + name = "MapRequest"; + extra = g_strdup_printf ("window: 0x%lx parent: 0x%lx\n", + event->xmaprequest.window, + event->xmaprequest.parent); + break; + case ReparentNotify: + name = "ReparentNotify"; + extra = g_strdup_printf ("window: 0x%lx parent: 0x%lx event: 0x%lx\n", + event->xreparent.window, + event->xreparent.parent, + event->xreparent.event); + break; + case ConfigureNotify: + name = "ConfigureNotify"; + extra = g_strdup_printf ("x: %d y: %d w: %d h: %d above: 0x%lx override_redirect: %d", + event->xconfigure.x, + event->xconfigure.y, + event->xconfigure.width, + event->xconfigure.height, + event->xconfigure.above, + event->xconfigure.override_redirect); + break; + case ConfigureRequest: + name = "ConfigureRequest"; + extra = g_strdup_printf ("parent: 0x%lx window: 0x%lx x: %d %sy: %d %sw: %d %sh: %d %sborder: %d %sabove: %lx %sstackmode: %s %s", + event->xconfigurerequest.parent, + event->xconfigurerequest.window, + event->xconfigurerequest.x, + event->xconfigurerequest.value_mask & + CWX ? "" : "(unset) ", + event->xconfigurerequest.y, + event->xconfigurerequest.value_mask & + CWY ? "" : "(unset) ", + event->xconfigurerequest.width, + event->xconfigurerequest.value_mask & + CWWidth ? "" : "(unset) ", + event->xconfigurerequest.height, + event->xconfigurerequest.value_mask & + CWHeight ? "" : "(unset) ", + event->xconfigurerequest.border_width, + event->xconfigurerequest.value_mask & + CWBorderWidth ? "" : "(unset)", + event->xconfigurerequest.above, + event->xconfigurerequest.value_mask & + CWSibling ? "" : "(unset)", + stack_mode_to_string (event->xconfigurerequest.detail), + event->xconfigurerequest.value_mask & + CWStackMode ? "" : "(unset)"); + break; + case GravityNotify: + name = "GravityNotify"; + break; + case ResizeRequest: + name = "ResizeRequest"; + extra = g_strdup_printf ("width = %d height = %d", + event->xresizerequest.width, + event->xresizerequest.height); + break; + case CirculateNotify: + name = "CirculateNotify"; + break; + case CirculateRequest: + name = "CirculateRequest"; + break; + case PropertyNotify: + { + char *str; + const char *state; + + name = "PropertyNotify"; + + meta_error_trap_push (display); + str = XGetAtomName (display->xdisplay, + event->xproperty.atom); + meta_error_trap_pop (display, TRUE); + + if (event->xproperty.state == PropertyNewValue) + state = "PropertyNewValue"; + else if (event->xproperty.state == PropertyDelete) + state = "PropertyDelete"; + else + state = "???"; + + extra = g_strdup_printf ("atom: %s state: %s", + str ? str : "(unknown atom)", + state); + meta_XFree (str); + } + break; + case SelectionClear: + name = "SelectionClear"; + break; + case SelectionRequest: + name = "SelectionRequest"; + break; + case SelectionNotify: + name = "SelectionNotify"; + break; + case ColormapNotify: + name = "ColormapNotify"; + break; + case ClientMessage: + { + char *str; + name = "ClientMessage"; + meta_error_trap_push (display); + str = XGetAtomName (display->xdisplay, + event->xclient.message_type); + meta_error_trap_pop (display, TRUE); + extra = g_strdup_printf ("type: %s format: %d\n", + str ? str : "(unknown atom)", + event->xclient.format); + meta_XFree (str); + } + break; + case MappingNotify: + name = "MappingNotify"; + break; + default: +#ifdef HAVE_XSYNC + if (META_DISPLAY_HAS_XSYNC (display) && + event->type == (display->xsync_event_base + XSyncAlarmNotify)) + { + XSyncAlarmNotifyEvent *aevent = (XSyncAlarmNotifyEvent*) event; + + name = "XSyncAlarmNotify"; + extra = + g_strdup_printf ("alarm: 0x%lx" + " counter_value: %" G_GINT64_FORMAT + " alarm_value: %" G_GINT64_FORMAT + " time: %u alarm state: %s", + aevent->alarm, + (gint64) sync_value_to_64 (&aevent->counter_value), + (gint64) sync_value_to_64 (&aevent->alarm_value), + (unsigned int)aevent->time, + alarm_state_to_string (aevent->state)); + } + else +#endif /* HAVE_XSYNC */ +#ifdef HAVE_SHAPE + if (META_DISPLAY_HAS_SHAPE (display) && + event->type == (display->shape_event_base + ShapeNotify)) + { + XShapeEvent *sev = (XShapeEvent*) event; + + name = "ShapeNotify"; + + extra = + g_strdup_printf ("kind: %s " + "x: %d y: %d w: %u h: %u " + "shaped: %d", + sev->kind == ShapeBounding ? + "ShapeBounding" : + (sev->kind == ShapeClip ? + "ShapeClip" : "(unknown)"), + sev->x, sev->y, sev->width, sev->height, + sev->shaped); + } + else +#endif /* HAVE_SHAPE */ + { + name = "(Unknown event)"; + extra = g_strdup_printf ("type: %d", event->xany.type); + } + break; + } + + screen = meta_display_screen_for_root (display, event->xany.window); + + if (screen) + winname = g_strdup_printf ("root %d", screen->number); + else + winname = g_strdup_printf ("0x%lx", event->xany.window); + + meta_topic (META_DEBUG_EVENTS, + "%s on %s%s %s %sserial %lu\n", name, winname, + extra ? ":" : "", extra ? extra : "", + event->xany.send_event ? "SEND " : "", + event->xany.serial); + + g_free (winname); + + if (extra) + g_free (extra); +} +#endif /* WITH_VERBOSE_MODE */ + +MetaWindow* +meta_display_lookup_x_window (MetaDisplay *display, + Window xwindow) +{ + return g_hash_table_lookup (display->window_ids, &xwindow); +} + +void +meta_display_register_x_window (MetaDisplay *display, + Window *xwindowp, + MetaWindow *window) +{ + g_return_if_fail (g_hash_table_lookup (display->window_ids, xwindowp) == NULL); + + g_hash_table_insert (display->window_ids, xwindowp, window); +} + +void +meta_display_unregister_x_window (MetaDisplay *display, + Window xwindow) +{ + g_return_if_fail (g_hash_table_lookup (display->window_ids, &xwindow) != NULL); + + g_hash_table_remove (display->window_ids, &xwindow); + + /* Remove any pending pings */ + remove_pending_pings_for_window (display, xwindow); +} + +gboolean +meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display, + Window xwindow) +{ + gboolean is_a_no_focus_window = FALSE; + GSList *temp = display->screens; + while (temp != NULL) { + MetaScreen *screen = temp->data; + if (screen->no_focus_window == xwindow) { + is_a_no_focus_window = TRUE; + break; + } + temp = temp->next; + } + + return is_a_no_focus_window; +} + +Cursor +meta_display_create_x_cursor (MetaDisplay *display, + MetaCursor cursor) +{ + Cursor xcursor; + guint glyph; + + switch (cursor) + { + case META_CURSOR_DEFAULT: + glyph = XC_left_ptr; + break; + case META_CURSOR_NORTH_RESIZE: + glyph = XC_top_side; + break; + case META_CURSOR_SOUTH_RESIZE: + glyph = XC_bottom_side; + break; + case META_CURSOR_WEST_RESIZE: + glyph = XC_left_side; + break; + case META_CURSOR_EAST_RESIZE: + glyph = XC_right_side; + break; + case META_CURSOR_SE_RESIZE: + glyph = XC_bottom_right_corner; + break; + case META_CURSOR_SW_RESIZE: + glyph = XC_bottom_left_corner; + break; + case META_CURSOR_NE_RESIZE: + glyph = XC_top_right_corner; + break; + case META_CURSOR_NW_RESIZE: + glyph = XC_top_left_corner; + break; + case META_CURSOR_MOVE_OR_RESIZE_WINDOW: + glyph = XC_fleur; + break; + case META_CURSOR_BUSY: + glyph = XC_watch; + break; + + default: + g_assert_not_reached (); + glyph = 0; /* silence compiler */ + break; + } + + xcursor = XCreateFontCursor (display->xdisplay, glyph); + + return xcursor; +} + +static Cursor +xcursor_for_op (MetaDisplay *display, + MetaGrabOp op) +{ + MetaCursor cursor = META_CURSOR_DEFAULT; + + switch (op) + { + case META_GRAB_OP_RESIZING_SE: + case META_GRAB_OP_KEYBOARD_RESIZING_SE: + cursor = META_CURSOR_SE_RESIZE; + break; + case META_GRAB_OP_RESIZING_S: + case META_GRAB_OP_KEYBOARD_RESIZING_S: + cursor = META_CURSOR_SOUTH_RESIZE; + break; + case META_GRAB_OP_RESIZING_SW: + case META_GRAB_OP_KEYBOARD_RESIZING_SW: + cursor = META_CURSOR_SW_RESIZE; + break; + case META_GRAB_OP_RESIZING_N: + case META_GRAB_OP_KEYBOARD_RESIZING_N: + cursor = META_CURSOR_NORTH_RESIZE; + break; + case META_GRAB_OP_RESIZING_NE: + case META_GRAB_OP_KEYBOARD_RESIZING_NE: + cursor = META_CURSOR_NE_RESIZE; + break; + case META_GRAB_OP_RESIZING_NW: + case META_GRAB_OP_KEYBOARD_RESIZING_NW: + cursor = META_CURSOR_NW_RESIZE; + break; + case META_GRAB_OP_RESIZING_W: + case META_GRAB_OP_KEYBOARD_RESIZING_W: + cursor = META_CURSOR_WEST_RESIZE; + break; + case META_GRAB_OP_RESIZING_E: + case META_GRAB_OP_KEYBOARD_RESIZING_E: + cursor = META_CURSOR_EAST_RESIZE; + break; + case META_GRAB_OP_MOVING: + case META_GRAB_OP_KEYBOARD_MOVING: + case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN: + cursor = META_CURSOR_MOVE_OR_RESIZE_WINDOW; + break; + + default: + break; + } + + if (cursor == META_CURSOR_DEFAULT) + return None; + return meta_display_create_x_cursor (display, cursor); +} + +void +meta_display_set_grab_op_cursor (MetaDisplay *display, + MetaScreen *screen, + MetaGrabOp op, + gboolean change_pointer, + Window grab_xwindow, + guint32 timestamp) +{ + Cursor cursor; + + cursor = xcursor_for_op (display, op); + +#define GRAB_MASK (PointerMotionMask | \ + ButtonPressMask | ButtonReleaseMask | \ + EnterWindowMask | LeaveWindowMask) + + if (change_pointer) + { + meta_error_trap_push_with_return (display); + XChangeActivePointerGrab (display->xdisplay, + GRAB_MASK, + cursor, + timestamp); + + meta_topic (META_DEBUG_WINDOW_OPS, + "Changed pointer with XChangeActivePointerGrab()\n"); + + if (meta_error_trap_pop_with_return (display, FALSE) != Success) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Error trapped from XChangeActivePointerGrab()\n"); + if (display->grab_have_pointer) + display->grab_have_pointer = FALSE; + } + } + else + { + g_assert (screen != NULL); + + meta_error_trap_push (display); + if (XGrabPointer (display->xdisplay, + grab_xwindow, + False, + GRAB_MASK, + GrabModeAsync, GrabModeAsync, + screen->xroot, + cursor, + timestamp) == GrabSuccess) + { + display->grab_have_pointer = TRUE; + meta_topic (META_DEBUG_WINDOW_OPS, + "XGrabPointer() returned GrabSuccess time %u\n", + timestamp); + } + else + { + meta_topic (META_DEBUG_WINDOW_OPS, + "XGrabPointer() failed time %u\n", + timestamp); + } + meta_error_trap_pop (display, TRUE); + } + +#undef GRAB_MASK + + if (cursor != None) + XFreeCursor (display->xdisplay, cursor); +} + +gboolean +meta_display_begin_grab_op (MetaDisplay *display, + MetaScreen *screen, + MetaWindow *window, + MetaGrabOp op, + gboolean pointer_already_grabbed, + gboolean frame_action, + int button, + gulong modmask, + guint32 timestamp, + int root_x, + int root_y) +{ + Window grab_xwindow; + + if (grab_op_is_mouse (op) && meta_grab_op_is_moving (op)) + { + if (display->compositor) + { + meta_compositor_begin_move (display->compositor, + window, &window->rect, + root_x, root_y); + } + } + + meta_topic (META_DEBUG_WINDOW_OPS, + "Doing grab op %u on window %s button %d pointer already grabbed: %d pointer pos %d,%d\n", + op, window ? window->desc : "none", button, pointer_already_grabbed, + root_x, root_y); + + if (display->grab_op != META_GRAB_OP_NONE) + { + if (window) + meta_warning ("Attempt to perform window operation %u on window %s when operation %u on %s already in effect\n", + op, window->desc, display->grab_op, + display->grab_window ? display->grab_window->desc : "none"); + return FALSE; + } + + if (window && + (meta_grab_op_is_moving (op) || meta_grab_op_is_resizing (op))) + { + if (meta_prefs_get_raise_on_click ()) + meta_window_raise (window); + else + { + display->grab_initial_x = root_x; + display->grab_initial_y = root_y; + display->grab_threshold_movement_reached = FALSE; + } + } + + /* FIXME: + * If we have no MetaWindow we do our best + * and try to do the grab on the RootWindow. + * This will fail if anyone else has any + * key grab on the RootWindow. + */ + if (window) + grab_xwindow = window->frame ? window->frame->xwindow : window->xwindow; + else + grab_xwindow = screen->xroot; + + display->grab_have_pointer = FALSE; + + if (pointer_already_grabbed) + display->grab_have_pointer = TRUE; + + meta_display_set_grab_op_cursor (display, screen, op, FALSE, grab_xwindow, + timestamp); + + if (!display->grab_have_pointer) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "XGrabPointer() failed\n"); + return FALSE; + } + + /* Grab keys for keyboard ops and mouse move/resizes; see #126497 */ + if (grab_op_is_keyboard (op) || grab_op_is_mouse_only (op)) + { + if (window) + display->grab_have_keyboard = + meta_window_grab_all_keys (window, timestamp); + + else + display->grab_have_keyboard = + meta_screen_grab_all_keys (screen, timestamp); + + if (!display->grab_have_keyboard) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "grabbing all keys failed, ungrabbing pointer\n"); + XUngrabPointer (display->xdisplay, timestamp); + display->grab_have_pointer = FALSE; + return FALSE; + } + } + + display->grab_op = op; + display->grab_window = window; + display->grab_screen = screen; + display->grab_xwindow = grab_xwindow; + display->grab_button = button; + display->grab_mask = modmask; + display->grab_anchor_root_x = root_x; + display->grab_anchor_root_y = root_y; + display->grab_latest_motion_x = root_x; + display->grab_latest_motion_y = root_y; + display->grab_last_moveresize_time.tv_sec = 0; + display->grab_last_moveresize_time.tv_usec = 0; + display->grab_motion_notify_time = 0; + display->grab_old_window_stacking = NULL; +#ifdef HAVE_XSYNC + display->grab_sync_request_alarm = None; + display->grab_last_user_action_was_snap = FALSE; +#endif + display->grab_was_cancelled = FALSE; + display->grab_frame_action = frame_action; + + if (display->grab_resize_timeout_id) + { + g_source_remove (display->grab_resize_timeout_id); + display->grab_resize_timeout_id = 0; + } + + if (display->grab_window) + { + meta_window_get_client_root_coords (display->grab_window, + &display->grab_initial_window_pos); + display->grab_anchor_window_pos = display->grab_initial_window_pos; + + display->grab_wireframe_active = + (meta_prefs_get_reduced_resources () && !meta_prefs_get_mate_accessibility ()) && + (meta_grab_op_is_resizing (display->grab_op) || + meta_grab_op_is_moving (display->grab_op)); + + if (display->grab_wireframe_active) + { + meta_window_calc_showing (display->grab_window); + meta_window_begin_wireframe (window); + } + +#ifdef HAVE_XSYNC + if (!display->grab_wireframe_active && + meta_grab_op_is_resizing (display->grab_op) && + display->grab_window->sync_request_counter != None) + { + XSyncAlarmAttributes values; + XSyncValue init; + + meta_error_trap_push_with_return (display); + + /* Set the counter to 0, so we know that the application's + * responses to the client messages will always trigger + * a PositiveTransition + */ + + XSyncIntToValue (&init, 0); + XSyncSetCounter (display->xdisplay, + display->grab_window->sync_request_counter, init); + + display->grab_window->sync_request_serial = 0; + display->grab_window->sync_request_time.tv_sec = 0; + display->grab_window->sync_request_time.tv_usec = 0; + + values.trigger.counter = display->grab_window->sync_request_counter; + values.trigger.value_type = XSyncAbsolute; + values.trigger.test_type = XSyncPositiveTransition; + XSyncIntToValue (&values.trigger.wait_value, + display->grab_window->sync_request_serial + 1); + + /* After triggering, increment test_value by this. + * (NOT wait_value above) + */ + XSyncIntToValue (&values.delta, 1); + + /* we want events (on by default anyway) */ + values.events = True; + + display->grab_sync_request_alarm = XSyncCreateAlarm (display->xdisplay, + XSyncCACounter | + XSyncCAValueType | + XSyncCAValue | + XSyncCATestType | + XSyncCADelta | + XSyncCAEvents, + &values); + + if (meta_error_trap_pop_with_return (display, FALSE) != Success) + display->grab_sync_request_alarm = None; + + meta_topic (META_DEBUG_RESIZING, + "Created update alarm 0x%lx\n", + display->grab_sync_request_alarm); + } +#endif + } + + meta_topic (META_DEBUG_WINDOW_OPS, + "Grab op %u on window %s successful\n", + display->grab_op, window ? window->desc : "(null)"); + + g_assert (display->grab_window != NULL || display->grab_screen != NULL); + g_assert (display->grab_op != META_GRAB_OP_NONE); + + /* If this is a move or resize, cache the window edges for + * resistance/snapping + */ + if (meta_grab_op_is_resizing (display->grab_op) || + meta_grab_op_is_moving (display->grab_op)) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Computing edges to resist-movement or snap-to for %s.\n", + window->desc); + meta_display_compute_resistance_and_snapping_edges (display); + } + + /* Save the old stacking */ + if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op)) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Saving old stack positions; old pointer was %p.\n", + display->grab_old_window_stacking); + display->grab_old_window_stacking = + meta_stack_get_positions (screen->stack); + } + + /* Do this last, after everything is set up. */ + switch (op) + { + case META_GRAB_OP_KEYBOARD_TABBING_NORMAL: + meta_screen_ensure_tab_popup (screen, + META_TAB_LIST_NORMAL, + META_TAB_SHOW_ICON); + break; + case META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL: + meta_screen_ensure_tab_popup (screen, + META_TAB_LIST_NORMAL, + META_TAB_SHOW_INSTANTLY); + break; + + case META_GRAB_OP_KEYBOARD_TABBING_DOCK: + meta_screen_ensure_tab_popup (screen, + META_TAB_LIST_DOCKS, + META_TAB_SHOW_ICON); + break; + case META_GRAB_OP_KEYBOARD_ESCAPING_DOCK: + meta_screen_ensure_tab_popup (screen, + META_TAB_LIST_DOCKS, + META_TAB_SHOW_INSTANTLY); + break; + case META_GRAB_OP_KEYBOARD_TABBING_GROUP: + meta_screen_ensure_tab_popup (screen, + META_TAB_LIST_GROUP, + META_TAB_SHOW_ICON); + break; + case META_GRAB_OP_KEYBOARD_ESCAPING_GROUP: + meta_screen_ensure_tab_popup (screen, + META_TAB_LIST_GROUP, + META_TAB_SHOW_INSTANTLY); + + case META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING: + meta_screen_ensure_workspace_popup (screen); + break; + + default: + break; + } + + if (display->grab_window) + { + meta_window_refresh_resize_popup (display->grab_window); + } + + return TRUE; +} + +void +meta_display_end_grab_op (MetaDisplay *display, + guint32 timestamp) +{ + meta_topic (META_DEBUG_WINDOW_OPS, + "Ending grab op %u at time %u\n", display->grab_op, timestamp); + + if (display->grab_op == META_GRAB_OP_NONE) + return; + + if (display->grab_window != NULL) + display->grab_window->shaken_loose = FALSE; + + if (display->grab_window != NULL && + !meta_prefs_get_raise_on_click () && + (meta_grab_op_is_moving (display->grab_op) || + meta_grab_op_is_resizing (display->grab_op))) + { + /* Only raise the window in orthogonal raise + * ('do-not-raise-on-click') mode if the user didn't try to move + * or resize the given window by at least a threshold amount. + * For raise on click mode, the window was raised at the + * beginning of the grab_op. + */ + if (!display->grab_threshold_movement_reached) + meta_window_raise (display->grab_window); + } + + if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op) || + display->grab_op == META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING) + { + meta_ui_tab_popup_free (display->grab_screen->tab_popup); + display->grab_screen->tab_popup = NULL; + + /* If the ungrab here causes an EnterNotify, ignore it for + * sloppy focus + */ + display->ungrab_should_not_cause_focus_window = display->grab_xwindow; + } + + /* If this was a move or resize clear out the edge cache */ + if (meta_grab_op_is_resizing (display->grab_op) || + meta_grab_op_is_moving (display->grab_op)) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Clearing out the edges for resistance/snapping"); + meta_display_cleanup_edges (display); + } + + if (display->grab_old_window_stacking != NULL) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Clearing out the old stack position, which was %p.\n", + display->grab_old_window_stacking); + g_list_free (display->grab_old_window_stacking); + display->grab_old_window_stacking = NULL; + } + + if (display->grab_wireframe_active) + { + display->grab_wireframe_active = FALSE; + meta_window_end_wireframe (display->grab_window); + + if (!display->grab_was_cancelled) + { + if (meta_grab_op_is_moving (display->grab_op)) + meta_window_move (display->grab_window, + TRUE, + display->grab_wireframe_rect.x, + display->grab_wireframe_rect.y); + if (meta_grab_op_is_resizing (display->grab_op)) + meta_window_resize_with_gravity (display->grab_window, + TRUE, + display->grab_wireframe_rect.width, + display->grab_wireframe_rect.height, + meta_resize_gravity_from_grab_op (display->grab_op)); + } + meta_window_calc_showing (display->grab_window); + } + + if (display->compositor && + display->grab_window && + grab_op_is_mouse (display->grab_op) && + meta_grab_op_is_moving (display->grab_op)) + { + meta_compositor_end_move (display->compositor, + display->grab_window); + } + + if (display->grab_have_pointer) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Ungrabbing pointer with timestamp %u\n", timestamp); + XUngrabPointer (display->xdisplay, timestamp); + } + + if (display->grab_have_keyboard) + { + meta_topic (META_DEBUG_WINDOW_OPS, + "Ungrabbing all keys timestamp %u\n", timestamp); + if (display->grab_window) + meta_window_ungrab_all_keys (display->grab_window, timestamp); + else + meta_screen_ungrab_all_keys (display->grab_screen, timestamp); + } + +#ifdef HAVE_XSYNC + if (display->grab_sync_request_alarm != None) + { + XSyncDestroyAlarm (display->xdisplay, + display->grab_sync_request_alarm); + display->grab_sync_request_alarm = None; + } +#endif /* HAVE_XSYNC */ + + display->grab_window = NULL; + display->grab_screen = NULL; + display->grab_xwindow = None; + display->grab_op = META_GRAB_OP_NONE; + + if (display->grab_resize_popup) + { + meta_ui_resize_popup_free (display->grab_resize_popup); + display->grab_resize_popup = NULL; + } + + if (display->grab_resize_timeout_id) + { + g_source_remove (display->grab_resize_timeout_id); + display->grab_resize_timeout_id = 0; + } +} + +void +meta_display_check_threshold_reached (MetaDisplay *display, + int x, + int y) +{ + /* Don't bother doing the check again if we've already reached the threshold */ + if (meta_prefs_get_raise_on_click () || + display->grab_threshold_movement_reached) + return; + + if (ABS (display->grab_initial_x - x) >= 8 || + ABS (display->grab_initial_y - y) >= 8) + display->grab_threshold_movement_reached = TRUE; +} + +static void +meta_change_button_grab (MetaDisplay *display, + Window xwindow, + gboolean grab, + gboolean sync, + int button, + int modmask) +{ + unsigned int ignored_mask; + + meta_verbose ("%s 0x%lx sync = %d button = %d modmask 0x%x\n", + grab ? "Grabbing" : "Ungrabbing", + xwindow, + sync, button, modmask); + + meta_error_trap_push (display); + + ignored_mask = 0; + while (ignored_mask <= display->ignored_modifier_mask) + { + if (ignored_mask & ~(display->ignored_modifier_mask)) + { + /* Not a combination of ignored modifiers + * (it contains some non-ignored modifiers) + */ + ++ignored_mask; + continue; + } + + if (meta_is_debugging ()) + meta_error_trap_push_with_return (display); + + /* GrabModeSync means freeze until XAllowEvents */ + + if (grab) + XGrabButton (display->xdisplay, button, modmask | ignored_mask, + xwindow, False, + ButtonPressMask | ButtonReleaseMask | + PointerMotionMask | PointerMotionHintMask, + sync ? GrabModeSync : GrabModeAsync, + GrabModeAsync, + False, None); + else + XUngrabButton (display->xdisplay, button, modmask | ignored_mask, + xwindow); + + if (meta_is_debugging ()) + { + int result; + + result = meta_error_trap_pop_with_return (display, FALSE); + + if (result != Success) + meta_verbose ("Failed to %s button %d with mask 0x%x for window 0x%lx error code %d\n", + grab ? "grab" : "ungrab", + button, modmask | ignored_mask, xwindow, result); + } + + ++ignored_mask; + } + + meta_error_trap_pop (display, FALSE); +} + +void +meta_display_grab_window_buttons (MetaDisplay *display, + Window xwindow) +{ + /* Grab Alt + button1 for moving window. + * Grab Alt + button2 for resizing window. + * Grab Alt + button3 for popping up window menu. + * Grab Alt + Shift + button1 for snap-moving window. + */ + meta_verbose ("Grabbing window buttons for 0x%lx\n", xwindow); + + /* FIXME If we ignored errors here instead of spewing, we could + * put one big error trap around the loop and avoid a bunch of + * XSync() + */ + + if (display->window_grab_modifiers != 0) + { + gboolean debug = g_getenv ("MARCO_DEBUG_BUTTON_GRABS") != NULL; + int i; + for (i = 1; i < 4; i++) + { + meta_change_button_grab (display, xwindow, + TRUE, + FALSE, + i, display->window_grab_modifiers); + + /* This is for debugging, since I end up moving the Xnest + * otherwise ;-) + */ + if (debug) + meta_change_button_grab (display, xwindow, + TRUE, + FALSE, + i, ControlMask); + } + + /* In addition to grabbing Alt+Button1 for moving the window, + * grab Alt+Shift+Button1 for snap-moving the window. See bug + * 112478. Unfortunately, this doesn't work with + * Shift+Alt+Button1 for some reason; so at least part of the + * order still matters, which sucks (please FIXME). + */ + meta_change_button_grab (display, xwindow, + TRUE, + FALSE, + 1, display->window_grab_modifiers | ShiftMask); + } +} + +void +meta_display_ungrab_window_buttons (MetaDisplay *display, + Window xwindow) +{ + gboolean debug; + int i; + + if (display->window_grab_modifiers == 0) + return; + + debug = g_getenv ("MARCO_DEBUG_BUTTON_GRABS") != NULL; + i = 1; + while (i < 4) + { + meta_change_button_grab (display, xwindow, + FALSE, FALSE, i, + display->window_grab_modifiers); + + if (debug) + meta_change_button_grab (display, xwindow, + FALSE, FALSE, i, ControlMask); + + ++i; + } +} + +/* Grab buttons we only grab while unfocused in click-to-focus mode */ +#define MAX_FOCUS_BUTTON 4 +void +meta_display_grab_focus_window_button (MetaDisplay *display, + MetaWindow *window) +{ + /* Grab button 1 for activating unfocused windows */ + meta_verbose ("Grabbing unfocused window buttons for %s\n", window->desc); + +#if 0 + /* FIXME:115072 */ + /* Don't grab at all unless in click to focus mode. In click to + * focus, we may sometimes be clever about intercepting and eating + * the focus click. But in mouse focus, we never do that since the + * focus window may not be raised, and who wants to think about + * mouse focus anyway. + */ + if (meta_prefs_get_focus_mode () != META_FOCUS_MODE_CLICK) + { + meta_verbose (" (well, not grabbing since not in click to focus mode)\n"); + return; + } +#endif + + if (window->have_focus_click_grab) + { + meta_verbose (" (well, not grabbing since we already have the grab)\n"); + return; + } + + /* FIXME If we ignored errors here instead of spewing, we could + * put one big error trap around the loop and avoid a bunch of + * XSync() + */ + + { + int i = 1; + while (i < MAX_FOCUS_BUTTON) + { + meta_change_button_grab (display, + window->xwindow, + TRUE, TRUE, + i, 0); + + ++i; + } + + window->have_focus_click_grab = TRUE; + } +} + +void +meta_display_ungrab_focus_window_button (MetaDisplay *display, + MetaWindow *window) +{ + meta_verbose ("Ungrabbing unfocused window buttons for %s\n", window->desc); + + if (!window->have_focus_click_grab) + return; + + { + int i = 1; + while (i < MAX_FOCUS_BUTTON) + { + meta_change_button_grab (display, window->xwindow, + FALSE, FALSE, i, 0); + + ++i; + } + + window->have_focus_click_grab = FALSE; + } +} + +void +meta_display_increment_event_serial (MetaDisplay *display) +{ + /* We just make some random X request */ + XDeleteProperty (display->xdisplay, display->leader_window, + display->atom__MOTIF_WM_HINTS); +} + +void +meta_display_update_active_window_hint (MetaDisplay *display) +{ + GSList *tmp; + + gulong data[1]; + + if (display->focus_window) + data[0] = display->focus_window->xwindow; + else + data[0] = None; + + tmp = display->screens; + while (tmp != NULL) + { + MetaScreen *screen = tmp->data; + + meta_error_trap_push (display); + XChangeProperty (display->xdisplay, screen->xroot, + display->atom__NET_ACTIVE_WINDOW, + XA_WINDOW, + 32, PropModeReplace, (guchar*) data, 1); + + meta_error_trap_pop (display, FALSE); + + tmp = tmp->next; + } +} + +void +meta_display_queue_retheme_all_windows (MetaDisplay *display) +{ + GSList* windows; + GSList *tmp; + + windows = meta_display_list_windows (display); + tmp = windows; + while (tmp != NULL) + { + MetaWindow *window = tmp->data; + + meta_window_queue (window, META_QUEUE_MOVE_RESIZE); + if (window->frame) + { + window->frame->need_reapply_frame_shape = TRUE; + + meta_frame_queue_draw (window->frame); + } + + tmp = tmp->next; + } + + g_slist_free (windows); +} + +void +meta_display_retheme_all (void) +{ + meta_display_queue_retheme_all_windows (meta_get_display ()); +} + +void +meta_display_set_cursor_theme (const char *theme, + int size) +{ +#ifdef HAVE_XCURSOR + GSList *tmp; + + MetaDisplay *display = meta_get_display (); + + XcursorSetTheme (display->xdisplay, theme); + XcursorSetDefaultSize (display->xdisplay, size); + + tmp = display->screens; + while (tmp != NULL) + { + MetaScreen *screen = tmp->data; + + meta_screen_update_cursor (screen); + + tmp = tmp->next; + } + +#endif +} + +/** + * Stores whether syncing is currently enabled. + */ +static gboolean is_syncing = FALSE; + +/** + * Returns whether X synchronisation is currently enabled. + * + * \return true if we must wait for events whenever we send X requests; + * false otherwise. + * + * \bug This is *only* called by meta_display_open, but by that time + * we have already turned syncing on or off on startup, and we don't + * have any way to do so while Marco is running, so it's rather + * pointless. + */ +gboolean +meta_is_syncing (void) +{ + return is_syncing; +} + +/** + * A handy way to turn on synchronisation on or off for every display. + * + * \bug Of course there is only one display ever anyway, so this can + * be rather hugely simplified. + */ +void +meta_set_syncing (gboolean setting) +{ + if (setting != is_syncing) + { + is_syncing = setting; + if (meta_get_display ()) + XSynchronize (meta_get_display ()->xdisplay, is_syncing); + } +} + +/** + * How long, in milliseconds, we should wait after pinging a window + * before deciding it's not going to get back to us. + */ +#define PING_TIMEOUT_DELAY 5000 + +/** + * Does whatever it is we decided to do when a window didn't respond + * to a ping. We also remove the ping from the display's list of + * pending pings. This function is called by the event loop when the timeout + * times out which we created at the start of the ping. + * + * \param data All the information about this ping. It is a MetaPingData + * cast to a void* in order to be passable to a timeout function. + * This function will also free this parameter. + * + * \return Always returns false, because this function is called as a + * timeout and we don't want to run the timer again. + * + * \ingroup pings + */ +static gboolean +meta_display_ping_timeout (gpointer data) +{ + MetaPingData *ping_data; + + ping_data = data; + + ping_data->ping_timeout_id = 0; + + meta_topic (META_DEBUG_PING, + "Ping %u on window %lx timed out\n", + ping_data->timestamp, ping_data->xwindow); + + (* ping_data->ping_timeout_func) (ping_data->display, ping_data->xwindow, + ping_data->timestamp, ping_data->user_data); + + ping_data->display->pending_pings = + g_slist_remove (ping_data->display->pending_pings, + ping_data); + ping_data_free (ping_data); + + return FALSE; +} + +/** + * Sends a ping request to a window. The window must respond to + * the request within a certain amount of time. If it does, we + * will call one callback; if the time passes and we haven't had + * a response, we call a different callback. The window must have + * the hint showing that it can respond to a ping; if it doesn't, + * we call the "got a response" callback immediately and return. + * This function returns straight away after setting things up; + * the callbacks will be called from the event loop. + * + * \param display The MetaDisplay that the window is on + * \param window The MetaWindow to send the ping to + * \param timestamp The timestamp of the ping. Used for uniqueness. + * Cannot be CurrentTime; use a real timestamp! + * \param ping_reply_func The callback to call if we get a response. + * \param ping_timeout_func The callback to call if we don't get a response. + * \param user_data Arbitrary data that will be passed to the callback + * function. (In practice it's often a pointer to + * the window.) + * + * \bug This should probably be a method on windows, rather than displays + * for one of their windows. + * + * \ingroup pings + */ +void +meta_display_ping_window (MetaDisplay *display, + MetaWindow *window, + guint32 timestamp, + MetaWindowPingFunc ping_reply_func, + MetaWindowPingFunc ping_timeout_func, + gpointer user_data) +{ + MetaPingData *ping_data; + + if (timestamp == CurrentTime) + { + meta_warning ("Tried to ping a window with CurrentTime! Not allowed.\n"); + return; + } + + if (!window->net_wm_ping) + { + if (ping_reply_func) + (* ping_reply_func) (display, window->xwindow, timestamp, user_data); + + return; + } + + ping_data = g_new (MetaPingData, 1); + ping_data->display = display; + ping_data->xwindow = window->xwindow; + ping_data->timestamp = timestamp; + ping_data->ping_reply_func = ping_reply_func; + ping_data->ping_timeout_func = ping_timeout_func; + ping_data->user_data = user_data; + ping_data->ping_timeout_id = g_timeout_add (PING_TIMEOUT_DELAY, + meta_display_ping_timeout, + ping_data); + + display->pending_pings = g_slist_prepend (display->pending_pings, ping_data); + + meta_topic (META_DEBUG_PING, + "Sending ping with timestamp %u to window %s\n", + timestamp, window->desc); + meta_window_send_icccm_message (window, + display->atom__NET_WM_PING, + timestamp); +} + +static void +process_request_frame_extents (MetaDisplay *display, + XEvent *event) +{ + /* The X window whose frame extents will be set. */ + Window xwindow = event->xclient.window; + unsigned long data[4] = { 0, 0, 0, 0 }; + + MotifWmHints *hints = NULL; + gboolean hints_set = FALSE; + + meta_verbose ("Setting frame extents for 0x%lx\n", xwindow); + + /* See if the window is decorated. */ + hints_set = meta_prop_get_motif_hints (display, + xwindow, + display->atom__MOTIF_WM_HINTS, + &hints); + if ((hints_set && hints->decorations) || !hints_set) + { + int top = 0; + int bottom = 0; + int left = 0; + int right = 0; + + MetaScreen *screen; + + screen = meta_display_screen_for_xwindow (display, + event->xclient.window); + if (screen == NULL) + { + meta_warning ("Received request to set _NET_FRAME_EXTENTS " + "on 0x%lx which is on a screen we are not managing\n", + event->xclient.window); + meta_XFree (hints); + return; + } + + /* Return estimated frame extents for a normal window. */ + meta_ui_theme_get_frame_borders (screen->ui, + META_FRAME_TYPE_NORMAL, + 0, + &top, + &bottom, + &left, + &right); + + data[0] = left; + data[1] = right; + data[2] = top; + data[3] = bottom; + } + + meta_topic (META_DEBUG_GEOMETRY, + "Setting _NET_FRAME_EXTENTS on unmanaged window 0x%lx " + "to top = %lu, left = %lu, bottom = %lu, right = %lu\n", + xwindow, data[0], data[1], data[2], data[3]); + + meta_error_trap_push (display); + XChangeProperty (display->xdisplay, xwindow, + display->atom__NET_FRAME_EXTENTS, + XA_CARDINAL, + 32, PropModeReplace, (guchar*) data, 4); + meta_error_trap_pop (display, FALSE); + + meta_XFree (hints); +} + +/** + * Process the pong (the response message) from the ping we sent + * to the window. This involves removing the timeout, calling the + * reply handler function, and freeing memory. + * + * \param display the display we got the pong from + * \param event the XEvent which is a pong; we can tell which + * ping it corresponds to because it bears the + * same timestamp. + * + * \ingroup pings + */ +static void +process_pong_message (MetaDisplay *display, + XEvent *event) +{ + GSList *tmp; + guint32 timestamp = event->xclient.data.l[1]; + + meta_topic (META_DEBUG_PING, "Received a pong with timestamp %u\n", + timestamp); + + for (tmp = display->pending_pings; tmp; tmp = tmp->next) + { + MetaPingData *ping_data = tmp->data; + + if (timestamp == ping_data->timestamp) + { + meta_topic (META_DEBUG_PING, + "Matching ping found for pong %u\n", + ping_data->timestamp); + + /* Remove the ping data from the list */ + display->pending_pings = g_slist_remove (display->pending_pings, + ping_data); + + /* Remove the timeout */ + if (ping_data->ping_timeout_id != 0) + { + g_source_remove (ping_data->ping_timeout_id); + ping_data->ping_timeout_id = 0; + } + + /* Call callback */ + (* ping_data->ping_reply_func) (display, + ping_data->xwindow, + ping_data->timestamp, + ping_data->user_data); + + ping_data_free (ping_data); + + break; + } + } +} + +/** + * Finds whether a window has any pings waiting on it. + * + * \param display The MetaDisplay of the window. + * \param window The MetaWindow whose pings we want to know about. + * + * \return True if there is at least one ping which has been sent + * to the window without getting a response; false otherwise. + * + * \bug This should probably be a method on windows, rather than displays + * for one of their windows. + * + * \ingroup pings + */ +gboolean +meta_display_window_has_pending_pings (MetaDisplay *display, + MetaWindow *window) +{ + GSList *tmp; + + for (tmp = display->pending_pings; tmp; tmp = tmp->next) + { + MetaPingData *ping_data = tmp->data; + + if (ping_data->xwindow == window->xwindow) + return TRUE; + } + + return FALSE; +} + +MetaGroup* +get_focussed_group (MetaDisplay *display) +{ + if (display->focus_window) + return display->focus_window->group; + else + return NULL; +} + +#define IN_TAB_CHAIN(w,t) (((t) == META_TAB_LIST_NORMAL && META_WINDOW_IN_NORMAL_TAB_CHAIN (w)) \ + || ((t) == META_TAB_LIST_DOCKS && META_WINDOW_IN_DOCK_TAB_CHAIN (w)) \ + || ((t) == META_TAB_LIST_GROUP && META_WINDOW_IN_GROUP_TAB_CHAIN (w, get_focussed_group(w->display)))) + +static MetaWindow* +find_tab_forward (MetaDisplay *display, + MetaTabList type, + MetaScreen *screen, + MetaWorkspace *workspace, + GList *start, + gboolean skip_first) +{ + GList *tmp; + + g_return_val_if_fail (start != NULL, NULL); + g_return_val_if_fail (workspace != NULL, NULL); + + tmp = start; + if (skip_first) + tmp = tmp->next; + + while (tmp != NULL) + { + MetaWindow *window = tmp->data; + + if (window->screen == screen && + IN_TAB_CHAIN (window, type)) + return window; + + tmp = tmp->next; + } + + tmp = workspace->mru_list; + while (tmp != start && tmp != NULL) + { + MetaWindow *window = tmp->data; + + if (IN_TAB_CHAIN (window, type)) + return window; + + tmp = tmp->next; + } + + return NULL; +} + +static MetaWindow* +find_tab_backward (MetaDisplay *display, + MetaTabList type, + MetaScreen *screen, + MetaWorkspace *workspace, + GList *start, + gboolean skip_last) +{ + GList *tmp; + + g_return_val_if_fail (start != NULL, NULL); + g_return_val_if_fail (workspace != NULL, NULL); + + tmp = start; + if (skip_last) + tmp = tmp->prev; + while (tmp != NULL) + { + MetaWindow *window = tmp->data; + + if (window->screen == screen && + IN_TAB_CHAIN (window, type)) + return window; + + tmp = tmp->prev; + } + + tmp = g_list_last (workspace->mru_list); + while (tmp != start) + { + MetaWindow *window = tmp->data; + + if (IN_TAB_CHAIN (window, type)) + return window; + + tmp = tmp->prev; + } + + return NULL; +} + +GList* +meta_display_get_tab_list (MetaDisplay *display, + MetaTabList type, + MetaScreen *screen, + MetaWorkspace *workspace) +{ + GList *tab_list; + + g_return_val_if_fail (workspace != NULL, NULL); + + /* Windows sellout mode - MRU order. Collect unminimized windows + * then minimized so minimized windows aren't in the way so much. + */ + { + GList *tmp; + + tab_list = NULL; + tmp = workspace->mru_list; + while (tmp != NULL) + { + MetaWindow *window = tmp->data; + + if (!window->minimized && + window->screen == screen && + IN_TAB_CHAIN (window, type)) + tab_list = g_list_prepend (tab_list, window); + + tmp = tmp->next; + } + } + + { + GList *tmp; + + tmp = workspace->mru_list; + while (tmp != NULL) + { + MetaWindow *window = tmp->data; + + if (window->minimized && + window->screen == screen && + IN_TAB_CHAIN (window, type)) + tab_list = g_list_prepend (tab_list, window); + + tmp = tmp->next; + } + } + + tab_list = g_list_reverse (tab_list); + + { + GSList *tmp; + MetaWindow *l_window; + + tmp = meta_display_list_windows (display); + + /* Go through all windows */ + while (tmp != NULL) + { + l_window=tmp->data; + + /* Check to see if it demands attention */ + if (l_window->wm_state_demands_attention && + l_window->workspace!=workspace && + IN_TAB_CHAIN (l_window, type)) + { + /* if it does, add it to the popup */ + tab_list = g_list_prepend (tab_list, l_window); + } + + tmp = tmp->next; + } /* End while tmp!=NULL */ + } + + return tab_list; +} + +MetaWindow* +meta_display_get_tab_next (MetaDisplay *display, + MetaTabList type, + MetaScreen *screen, + MetaWorkspace *workspace, + MetaWindow *window, + gboolean backward) +{ + gboolean skip; + GList *tab_list; + MetaWindow *ret; + tab_list = meta_display_get_tab_list(display, + type, + screen, + workspace); + + if (tab_list == NULL) + return NULL; + + if (window != NULL) + { + g_assert (window->display == display); + + if (backward) + ret = find_tab_backward (display, type, screen, workspace, + g_list_find (tab_list, + window), + TRUE); + else + ret = find_tab_forward (display, type, screen, workspace, + g_list_find (tab_list, + window), + TRUE); + } + else + { + skip = display->focus_window != NULL && + tab_list->data == display->focus_window; + if (backward) + ret = find_tab_backward (display, type, screen, workspace, + tab_list, skip); + else + ret = find_tab_forward (display, type, screen, workspace, + tab_list, skip); + } + + g_list_free (tab_list); + return ret; +} + +MetaWindow* +meta_display_get_tab_current (MetaDisplay *display, + MetaTabList type, + MetaScreen *screen, + MetaWorkspace *workspace) +{ + MetaWindow *window; + + window = display->focus_window; + + if (window != NULL && + window->screen == screen && + IN_TAB_CHAIN (window, type) && + (workspace == NULL || + meta_window_located_on_workspace (window, workspace))) + return window; + else + return NULL; +} + +int +meta_resize_gravity_from_grab_op (MetaGrabOp op) +{ + int gravity; + + gravity = -1; + switch (op) + { + case META_GRAB_OP_RESIZING_SE: + case META_GRAB_OP_KEYBOARD_RESIZING_SE: + gravity = NorthWestGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_S: + case META_GRAB_OP_RESIZING_S: + gravity = NorthGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_SW: + case META_GRAB_OP_RESIZING_SW: + gravity = NorthEastGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_N: + case META_GRAB_OP_RESIZING_N: + gravity = SouthGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_NE: + case META_GRAB_OP_RESIZING_NE: + gravity = SouthWestGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_NW: + case META_GRAB_OP_RESIZING_NW: + gravity = SouthEastGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_E: + case META_GRAB_OP_RESIZING_E: + gravity = WestGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_W: + case META_GRAB_OP_RESIZING_W: + gravity = EastGravity; + break; + case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN: + gravity = CenterGravity; + break; + default: + break; + } + + return gravity; +} + +static MetaScreen* +find_screen_for_selection (MetaDisplay *display, + Window owner, + Atom selection) +{ + GSList *tmp; + + tmp = display->screens; + while (tmp != NULL) + { + MetaScreen *screen = tmp->data; + + if (screen->wm_sn_selection_window == owner && + screen->wm_sn_atom == selection) + return screen; + + tmp = tmp->next; + } + + return NULL; +} + +/* from fvwm2, Copyright Matthias Clasen, Dominik Vogt */ +static gboolean +convert_property (MetaDisplay *display, + MetaScreen *screen, + Window w, + Atom target, + Atom property) +{ +#define N_TARGETS 4 + Atom conversion_targets[N_TARGETS]; + long icccm_version[] = { 2, 0 }; + + conversion_targets[0] = display->atom_TARGETS; + conversion_targets[1] = display->atom_MULTIPLE; + conversion_targets[2] = display->atom_TIMESTAMP; + conversion_targets[3] = display->atom_VERSION; + + meta_error_trap_push_with_return (display); + if (target == display->atom_TARGETS) + XChangeProperty (display->xdisplay, w, property, + XA_ATOM, 32, PropModeReplace, + (unsigned char *)conversion_targets, N_TARGETS); + else if (target == display->atom_TIMESTAMP) + XChangeProperty (display->xdisplay, w, property, + XA_INTEGER, 32, PropModeReplace, + (unsigned char *)&screen->wm_sn_timestamp, 1); + else if (target == display->atom_VERSION) + XChangeProperty (display->xdisplay, w, property, + XA_INTEGER, 32, PropModeReplace, + (unsigned char *)icccm_version, 2); + else + { + meta_error_trap_pop_with_return (display, FALSE); + return FALSE; + } + + if (meta_error_trap_pop_with_return (display, FALSE) != Success) + return FALSE; + + /* Be sure the PropertyNotify has arrived so we + * can send SelectionNotify + */ + /* FIXME the error trap pop synced anyway, right? */ + meta_topic (META_DEBUG_SYNC, "Syncing on %s\n", G_STRFUNC); + XSync (display->xdisplay, False); + + return TRUE; +} + +/* from fvwm2, Copyright Matthias Clasen, Dominik Vogt */ +static void +process_selection_request (MetaDisplay *display, + XEvent *event) +{ + XSelectionEvent reply; + MetaScreen *screen; + + screen = find_screen_for_selection (display, + event->xselectionrequest.owner, + event->xselectionrequest.selection); + + if (screen == NULL) + { + char *str; + + meta_error_trap_push (display); + str = XGetAtomName (display->xdisplay, + event->xselectionrequest.selection); + meta_error_trap_pop (display, TRUE); + + meta_verbose ("Selection request with selection %s window 0x%lx not a WM_Sn selection we recognize\n", + str ? str : "(bad atom)", event->xselectionrequest.owner); + + meta_XFree (str); + + return; + } + + reply.type = SelectionNotify; + reply.display = display->xdisplay; + reply.requestor = event->xselectionrequest.requestor; + reply.selection = event->xselectionrequest.selection; + reply.target = event->xselectionrequest.target; + reply.property = None; + reply.time = event->xselectionrequest.time; + + if (event->xselectionrequest.target == display->atom_MULTIPLE) + { + if (event->xselectionrequest.property != None) + { + Atom type, *adata; + int i, format; + unsigned long num, rest; + unsigned char *data; + + meta_error_trap_push_with_return (display); + if (XGetWindowProperty (display->xdisplay, + event->xselectionrequest.requestor, + event->xselectionrequest.property, 0, 256, False, + display->atom_ATOM_PAIR, + &type, &format, &num, &rest, &data) != Success) + { + meta_error_trap_pop_with_return (display, TRUE); + return; + } + + if (meta_error_trap_pop_with_return (display, TRUE) == Success) + { + /* FIXME: to be 100% correct, should deal with rest > 0, + * but since we have 4 possible targets, we will hardly ever + * meet multiple requests with a length > 8 + */ + adata = (Atom*)data; + i = 0; + while (i < (int) num) + { + if (!convert_property (display, screen, + event->xselectionrequest.requestor, + adata[i], adata[i+1])) + adata[i+1] = None; + i += 2; + } + + meta_error_trap_push (display); + XChangeProperty (display->xdisplay, + event->xselectionrequest.requestor, + event->xselectionrequest.property, + display->atom_ATOM_PAIR, + 32, PropModeReplace, data, num); + meta_error_trap_pop (display, FALSE); + meta_XFree (data); + } + } + } + else + { + if (event->xselectionrequest.property == None) + event->xselectionrequest.property = event->xselectionrequest.target; + + if (convert_property (display, screen, + event->xselectionrequest.requestor, + event->xselectionrequest.target, + event->xselectionrequest.property)) + reply.property = event->xselectionrequest.property; + } + + XSendEvent (display->xdisplay, + event->xselectionrequest.requestor, + False, 0L, (XEvent*)&reply); + + meta_verbose ("Handled selection request\n"); +} + +static void +process_selection_clear (MetaDisplay *display, + XEvent *event) +{ + /* We need to unmanage the screen on which we lost the selection */ + MetaScreen *screen; + + screen = find_screen_for_selection (display, + event->xselectionclear.window, + event->xselectionclear.selection); + + + if (screen != NULL) + { + meta_verbose ("Got selection clear for screen %d on display %s\n", + screen->number, display->name); + + meta_display_unmanage_screen (&display, + screen, + event->xselectionclear.time); + + if (!display) + the_display = NULL; + + /* display and screen may both be invalid memory... */ + + return; + } + + { + char *str; + + meta_error_trap_push (display); + str = XGetAtomName (display->xdisplay, + event->xselectionclear.selection); + meta_error_trap_pop (display, TRUE); + + meta_verbose ("Selection clear with selection %s window 0x%lx not a WM_Sn selection we recognize\n", + str ? str : "(bad atom)", event->xselectionclear.window); + + meta_XFree (str); + } +} + +void +meta_display_unmanage_screen (MetaDisplay **displayp, + MetaScreen *screen, + guint32 timestamp) +{ + MetaDisplay *display = *displayp; + + meta_verbose ("Unmanaging screen %d on display %s\n", + screen->number, display->name); + + g_return_if_fail (g_slist_find (display->screens, screen) != NULL); + + meta_screen_free (screen, timestamp); + display->screens = g_slist_remove (display->screens, screen); + + if (display->screens == NULL) + { + meta_display_close (display, timestamp); + *displayp = NULL; + } +} + +void +meta_display_unmanage_windows_for_screen (MetaDisplay *display, + MetaScreen *screen, + guint32 timestamp) +{ + GSList *tmp; + GSList *winlist; + + winlist = meta_display_list_windows (display); + winlist = g_slist_sort (winlist, meta_display_stack_cmp); + + /* Unmanage all windows */ + tmp = winlist; + while (tmp != NULL) + { + meta_window_free (tmp->data, timestamp); + + tmp = tmp->next; + } + g_slist_free (winlist); +} + +int +meta_display_stack_cmp (const void *a, + const void *b) +{ + MetaWindow *aw = (void*) a; + MetaWindow *bw = (void*) b; + + if (aw->screen == bw->screen) + return meta_stack_windows_cmp (aw->screen->stack, aw, bw); + /* Then assume screens are stacked by number */ + else if (aw->screen->number < bw->screen->number) + return -1; + else if (aw->screen->number > bw->screen->number) + return 1; + else + return 0; /* not reached in theory, if windows on same display */ +} + +void +meta_display_devirtualize_modifiers (MetaDisplay *display, + MetaVirtualModifier modifiers, + unsigned int *mask) +{ + *mask = 0; + + if (modifiers & META_VIRTUAL_SHIFT_MASK) + *mask |= ShiftMask; + if (modifiers & META_VIRTUAL_CONTROL_MASK) + *mask |= ControlMask; + if (modifiers & META_VIRTUAL_ALT_MASK) + *mask |= Mod1Mask; + if (modifiers & META_VIRTUAL_META_MASK) + *mask |= display->meta_mask; + if (modifiers & META_VIRTUAL_HYPER_MASK) + *mask |= display->hyper_mask; + if (modifiers & META_VIRTUAL_SUPER_MASK) + *mask |= display->super_mask; + if (modifiers & META_VIRTUAL_MOD2_MASK) + *mask |= Mod2Mask; + if (modifiers & META_VIRTUAL_MOD3_MASK) + *mask |= Mod3Mask; + if (modifiers & META_VIRTUAL_MOD4_MASK) + *mask |= Mod4Mask; + if (modifiers & META_VIRTUAL_MOD5_MASK) + *mask |= Mod5Mask; +} + +static void +update_window_grab_modifiers (MetaDisplay *display) + +{ + MetaVirtualModifier virtual_mods; + unsigned int mods; + + virtual_mods = meta_prefs_get_mouse_button_mods (); + meta_display_devirtualize_modifiers (display, virtual_mods, + &mods); + + display->window_grab_modifiers = mods; +} + +static void +prefs_changed_callback (MetaPreference pref, + void *data) +{ + MetaDisplay *display = data; + + /* It may not be obvious why we regrab on focus mode + * change; it's because we handle focus clicks a + * bit differently for the different focus modes. + */ + if (pref == META_PREF_MOUSE_BUTTON_MODS || + pref == META_PREF_FOCUS_MODE) + { + MetaDisplay *display = data; + GSList *windows; + GSList *tmp; + + windows = meta_display_list_windows (display); + + /* Ungrab all */ + tmp = windows; + while (tmp != NULL) + { + MetaWindow *w = tmp->data; + meta_display_ungrab_window_buttons (display, w->xwindow); + meta_display_ungrab_focus_window_button (display, w); + tmp = tmp->next; + } + + /* change our modifier */ + if (pref == META_PREF_MOUSE_BUTTON_MODS) + update_window_grab_modifiers (display); + + /* Grab all */ + tmp = windows; + while (tmp != NULL) + { + MetaWindow *w = tmp->data; + if (w->type != META_WINDOW_DOCK) + { + meta_display_grab_focus_window_button (display, w); + meta_display_grab_window_buttons (display, w->xwindow); + } + tmp = tmp->next; + } + + g_slist_free (windows); + } + else if (pref == META_PREF_AUDIBLE_BELL) + { + meta_bell_set_audible (display, meta_prefs_bell_is_audible ()); + } + else if (pref == META_PREF_COMPOSITING_MANAGER) + { + gboolean cm = meta_prefs_get_compositing_manager (); + + if (cm) + enable_compositor (display, TRUE); + else + disable_compositor (display); + } +} + +void +meta_display_increment_focus_sentinel (MetaDisplay *display) +{ + unsigned long data[1]; + + data[0] = meta_display_get_current_time (display); + + XChangeProperty (display->xdisplay, + ((MetaScreen*) display->screens->data)->xroot, + display->atom__MARCO_SENTINEL, + XA_CARDINAL, + 32, PropModeReplace, (guchar*) data, 1); + + display->sentinel_counter += 1; +} + +void +meta_display_decrement_focus_sentinel (MetaDisplay *display) +{ + display->sentinel_counter -= 1; + + if (display->sentinel_counter < 0) + display->sentinel_counter = 0; +} + +gboolean +meta_display_focus_sentinel_clear (MetaDisplay *display) +{ + return (display->sentinel_counter == 0); +} + +static void +sanity_check_timestamps (MetaDisplay *display, + guint32 timestamp) +{ + if (XSERVER_TIME_IS_BEFORE (timestamp, display->last_focus_time)) + { + meta_warning ("last_focus_time (%u) is greater than comparison " + "timestamp (%u). This most likely represents a buggy " + "client sending inaccurate timestamps in messages such as " + "_NET_ACTIVE_WINDOW. Trying to work around...\n", + display->last_focus_time, timestamp); + display->last_focus_time = timestamp; + } + if (XSERVER_TIME_IS_BEFORE (timestamp, display->last_user_time)) + { + GSList *windows; + GSList *tmp; + + meta_warning ("last_user_time (%u) is greater than comparison " + "timestamp (%u). This most likely represents a buggy " + "client sending inaccurate timestamps in messages such as " + "_NET_ACTIVE_WINDOW. Trying to work around...\n", + display->last_user_time, timestamp); + display->last_user_time = timestamp; + + windows = meta_display_list_windows (display); + tmp = windows; + while (tmp != NULL) + { + MetaWindow *window = tmp->data; + + if (XSERVER_TIME_IS_BEFORE (timestamp, window->net_wm_user_time)) + { + meta_warning ("%s appears to be one of the offending windows " + "with a timestamp of %u. Working around...\n", + window->desc, window->net_wm_user_time); + window->net_wm_user_time = timestamp; + } + + tmp = tmp->next; + } + + g_slist_free (windows); + } +} + +static gboolean +timestamp_too_old (MetaDisplay *display, + MetaWindow *window, + guint32 *timestamp) +{ + /* FIXME: If Soeren's suggestion in bug 151984 is implemented, it will allow + * us to sanity check the timestamp here and ensure it doesn't correspond to + * a future time (though we would want to rename to + * timestamp_too_old_or_in_future). + */ + + if (*timestamp == CurrentTime) + { + meta_warning ("Got a request to focus %s with a timestamp of 0. This " + "shouldn't happen!\n", + window ? window->desc : "the no_focus_window"); + meta_print_backtrace (); + *timestamp = meta_display_get_current_time_roundtrip (display); + return FALSE; + } + else if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_focus_time)) + { + if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_user_time)) + { + meta_topic (META_DEBUG_FOCUS, + "Ignoring focus request for %s since %u " + "is less than %u and %u.\n", + window ? window->desc : "the no_focus_window", + *timestamp, + display->last_user_time, + display->last_focus_time); + return TRUE; + } + else + { + meta_topic (META_DEBUG_FOCUS, + "Received focus request for %s which is newer than most " + "recent user_time, but less recent than " + "last_focus_time (%u < %u < %u); adjusting " + "accordingly. (See bug 167358)\n", + window ? window->desc : "the no_focus_window", + display->last_user_time, + *timestamp, + display->last_focus_time); + *timestamp = display->last_focus_time; + return FALSE; + } + } + + return FALSE; +} + +void +meta_display_set_input_focus_window (MetaDisplay *display, + MetaWindow *window, + gboolean focus_frame, + guint32 timestamp) +{ + if (timestamp_too_old (display, window, ×tamp)) + return; + + meta_error_trap_push (display); + XSetInputFocus (display->xdisplay, + focus_frame ? window->frame->xwindow : window->xwindow, + RevertToPointerRoot, + timestamp); + meta_error_trap_pop (display, FALSE); + + display->expected_focus_window = window; + display->last_focus_time = timestamp; + display->active_screen = window->screen; + + if (window != display->autoraise_window) + meta_display_remove_autoraise_callback (window->display); +} + +void +meta_display_focus_the_no_focus_window (MetaDisplay *display, + MetaScreen *screen, + guint32 timestamp) +{ + if (timestamp_too_old (display, NULL, ×tamp)) + return; + + XSetInputFocus (display->xdisplay, + screen->no_focus_window, + RevertToPointerRoot, + timestamp); + display->expected_focus_window = NULL; + display->last_focus_time = timestamp; + display->active_screen = screen; + + meta_display_remove_autoraise_callback (display); +} + +void +meta_display_remove_autoraise_callback (MetaDisplay *display) +{ + if (display->autoraise_timeout_id != 0) + { + g_source_remove (display->autoraise_timeout_id); + display->autoraise_timeout_id = 0; + display->autoraise_window = NULL; + } +} + +#ifdef HAVE_COMPOSITE_EXTENSIONS +void +meta_display_get_compositor_version (MetaDisplay *display, + int *major, + int *minor) +{ + *major = display->composite_major_version; + *minor = display->composite_minor_version; +} +#endif + +Display * +meta_display_get_xdisplay (MetaDisplay *display) +{ + return display->xdisplay; +} + +MetaCompositor * +meta_display_get_compositor (MetaDisplay *display) +{ + return display->compositor; +} + +GSList * +meta_display_get_screens (MetaDisplay *display) +{ + return display->screens; +} + +gboolean +meta_display_has_shape (MetaDisplay *display) +{ + return META_DISPLAY_HAS_SHAPE (display); +} + +MetaWindow * +meta_display_get_focus_window (MetaDisplay *display) +{ + return display->focus_window; +} + +#ifdef HAVE_COMPOSITE_EXTENSIONS +int +meta_display_get_damage_event_base (MetaDisplay *display) +{ + return display->damage_event_base; +} +#endif + +#ifdef HAVE_COMPOSITE_EXTENSIONS +#ifdef HAVE_SHAPE +int +meta_display_get_shape_event_base (MetaDisplay *display) +{ + return display->shape_event_base; +} +#endif +#endif |