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e1362562b4
The ignored_serials member of Display refers explicitly to crossing serials - rename the member and associated functions and constants for clarity. https://bugzilla.gnome.org/show_bug.cgi?id=597190
451 lines
16 KiB
C
451 lines
16 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* Mutter X display handler */
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/*
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* Copyright (C) 2001 Havoc Pennington
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* Copyright (C) 2002 Red Hat, Inc.
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* Copyright (C) 2003 Rob Adams
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* Copyright (C) 2004-2006 Elijah Newren
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_DISPLAY_PRIVATE_H
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#define META_DISPLAY_PRIVATE_H
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#ifndef PACKAGE
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#error "config.h not included"
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#endif
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#include <glib.h>
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#include <X11/Xlib.h>
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#include "eventqueue.h"
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#include <meta/common.h>
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#include <meta/boxes.h>
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#include <meta/display.h>
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#include "keybindings-private.h"
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#include <meta/prefs.h>
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#ifdef HAVE_STARTUP_NOTIFICATION
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#include <libsn/sn.h>
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#endif
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#ifdef HAVE_XSYNC
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#include <X11/extensions/sync.h>
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#endif
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typedef struct _MetaStack MetaStack;
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typedef struct _MetaUISlave MetaUISlave;
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typedef struct _MetaGroupPropHooks MetaGroupPropHooks;
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typedef struct _MetaWindowPropHooks MetaWindowPropHooks;
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typedef struct MetaEdgeResistanceData MetaEdgeResistanceData;
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typedef void (* MetaWindowPingFunc) (MetaDisplay *display,
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Window xwindow,
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guint32 timestamp,
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gpointer user_data);
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typedef enum {
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META_LIST_DEFAULT = 0, /* normal windows */
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META_LIST_INCLUDE_OVERRIDE_REDIRECT = 1 << 0, /* normal and O-R */
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} MetaListWindowsFlags;
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#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */
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#define _NET_WM_STATE_ADD 1 /* add/set property */
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#define _NET_WM_STATE_TOGGLE 2 /* toggle property */
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/* This is basically a bogus number, just has to be large enough
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* to handle the expected case of the alt+tab operation, where
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* we want to ignore serials from UnmapNotify on the tab popup,
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* and the LeaveNotify/EnterNotify from the pointer ungrab. It
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* also has to be big enough to hold ignored serials from the point
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* where we reshape the stage to the point where we get events back.
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*/
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#define N_IGNORED_CROSSING_SERIALS 10
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typedef enum {
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META_TILE_NONE,
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META_TILE_LEFT,
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META_TILE_RIGHT,
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META_TILE_MAXIMIZED
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} MetaTileMode;
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struct _MetaDisplay
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{
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GObject parent_instance;
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char *name;
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Display *xdisplay;
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char *hostname;
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Window leader_window;
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Window timestamp_pinging_window;
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/* Pull in all the names of atoms as fields; we will intern them when the
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* class is constructed.
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*/
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#define item(x) Atom atom_##x;
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#include <meta/atomnames.h>
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#undef item
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/* This is the actual window from focus events,
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* not the one we last set
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*/
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MetaWindow *focus_window;
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/* window we are expecting a FocusIn event for or the current focus
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* window if we are not expecting any FocusIn/FocusOut events; not
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* perfect because applications can call XSetInputFocus directly.
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* (It could also be messed up if a timestamp later than current
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* time is sent to meta_display_set_input_focus_window, though that
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* would be a programming error). See bug 154598 for more info.
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*/
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MetaWindow *expected_focus_window;
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/* last timestamp passed to XSetInputFocus */
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guint32 last_focus_time;
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/* last user interaction time in any app */
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guint32 last_user_time;
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/* whether we're using mousenav (only relevant for sloppy&mouse focus modes;
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* !mouse_mode means "keynav mode")
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*/
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guint mouse_mode : 1;
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/* Helper var used when focus_new_windows setting is 'strict'; only
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* relevant in 'strict' mode and if the focus window is a terminal.
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* In that case, we don't allow new windows to take focus away from
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* a terminal, but if the user explicitly did something that should
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* allow a different window to gain focus (e.g. global keybinding or
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* clicking on a dock), then we will allow the transfer.
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*/
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guint allow_terminal_deactivation : 1;
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guint static_gravity_works : 1;
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/*< private-ish >*/
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guint error_trap_synced_at_last_pop : 1;
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MetaEventQueue *events;
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GSList *screens;
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MetaScreen *active_screen;
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GHashTable *window_ids;
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int error_traps;
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int (* error_trap_handler) (Display *display,
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XErrorEvent *error);
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int server_grab_count;
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/* serials of leave/unmap events that may
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* correspond to an enter event we should
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* ignore
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*/
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unsigned long ignored_crossing_serials[N_IGNORED_CROSSING_SERIALS];
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Window ungrab_should_not_cause_focus_window;
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guint32 current_time;
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/* We maintain a sequence counter, incremented for each #MetaWindow
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* created. This is exposed by meta_window_get_stable_sequence()
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* but is otherwise not used inside mutter.
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*
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* It can be useful to plugins which want to sort windows in a
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* stable fashion.
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*/
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guint32 window_sequence_counter;
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/* Pings which we're waiting for a reply from */
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GSList *pending_pings;
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/* Pending autoraise */
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guint autoraise_timeout_id;
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MetaWindow* autoraise_window;
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/* Alt+click button grabs */
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unsigned int window_grab_modifiers;
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/* current window operation */
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MetaGrabOp grab_op;
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MetaScreen *grab_screen;
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MetaWindow *grab_window;
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Window grab_xwindow;
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int grab_button;
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int grab_anchor_root_x;
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int grab_anchor_root_y;
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MetaRectangle grab_anchor_window_pos;
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MetaTileMode grab_tile_mode;
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int grab_latest_motion_x;
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int grab_latest_motion_y;
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gulong grab_mask;
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guint grab_have_pointer : 1;
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guint grab_have_keyboard : 1;
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guint grab_frame_action : 1;
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/* During a resize operation, the directions in which we've broken
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* out of the initial maximization state */
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guint grab_resize_unmaximize : 2; /* MetaMaximizeFlags */
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MetaRectangle grab_initial_window_pos;
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int grab_initial_x, grab_initial_y; /* These are only relevant for */
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gboolean grab_threshold_movement_reached; /* raise_on_click == FALSE. */
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MetaResizePopup *grab_resize_popup;
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GTimeVal grab_last_moveresize_time;
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guint32 grab_motion_notify_time;
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GList* grab_old_window_stacking;
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MetaEdgeResistanceData *grab_edge_resistance_data;
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unsigned int grab_last_user_action_was_snap;
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/* we use property updates as sentinels for certain window focus events
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* to avoid some race conditions on EnterNotify events
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*/
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int sentinel_counter;
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#ifdef HAVE_XKB
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int xkb_base_event_type;
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guint32 last_bell_time;
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#endif
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#ifdef HAVE_XSYNC
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/* alarm monitoring client's _NET_WM_SYNC_REQUEST_COUNTER */
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XSyncAlarm grab_sync_request_alarm;
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#endif
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int grab_resize_timeout_id;
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/* Keybindings stuff */
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MetaKeyBinding *key_bindings;
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int n_key_bindings;
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int min_keycode;
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int max_keycode;
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KeySym *keymap;
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int keysyms_per_keycode;
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XModifierKeymap *modmap;
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unsigned int above_tab_keycode;
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unsigned int ignored_modifier_mask;
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unsigned int num_lock_mask;
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unsigned int scroll_lock_mask;
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unsigned int hyper_mask;
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unsigned int super_mask;
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unsigned int meta_mask;
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MetaKeyCombo overlay_key_combo;
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gboolean overlay_key_only_pressed;
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/* Monitor cache */
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unsigned int monitor_cache_invalidated : 1;
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/* Opening the display */
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unsigned int display_opening : 1;
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/* Closing down the display */
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int closing;
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/* Managed by group.c */
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GHashTable *groups_by_leader;
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/* currently-active window menu if any */
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MetaWindowMenu *window_menu;
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MetaWindow *window_with_menu;
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/* Managed by window-props.c */
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MetaWindowPropHooks *prop_hooks_table;
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GHashTable *prop_hooks;
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int n_prop_hooks;
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/* Managed by group-props.c */
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MetaGroupPropHooks *group_prop_hooks;
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/* Managed by compositor.c */
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MetaCompositor *compositor;
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int render_event_base;
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int render_error_base;
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int composite_event_base;
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int composite_error_base;
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int composite_major_version;
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int composite_minor_version;
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int damage_event_base;
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int damage_error_base;
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int xfixes_event_base;
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int xfixes_error_base;
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#ifdef HAVE_STARTUP_NOTIFICATION
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SnDisplay *sn_display;
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#endif
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#ifdef HAVE_XSYNC
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int xsync_event_base;
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int xsync_error_base;
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#endif
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#ifdef HAVE_SHAPE
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int shape_event_base;
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int shape_error_base;
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#endif
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#ifdef HAVE_XSYNC
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unsigned int have_xsync : 1;
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#define META_DISPLAY_HAS_XSYNC(display) ((display)->have_xsync)
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#else
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#define META_DISPLAY_HAS_XSYNC(display) FALSE
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#endif
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#ifdef HAVE_SHAPE
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unsigned int have_shape : 1;
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#define META_DISPLAY_HAS_SHAPE(display) ((display)->have_shape)
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#else
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#define META_DISPLAY_HAS_SHAPE(display) FALSE
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#endif
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unsigned int have_render : 1;
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#define META_DISPLAY_HAS_RENDER(display) ((display)->have_render)
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unsigned int have_composite : 1;
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unsigned int have_damage : 1;
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unsigned int have_xfixes : 1;
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#define META_DISPLAY_HAS_COMPOSITE(display) ((display)->have_composite)
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#define META_DISPLAY_HAS_DAMAGE(display) ((display)->have_damage)
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#define META_DISPLAY_HAS_XFIXES(display) ((display)->have_xfixes)
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};
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struct _MetaDisplayClass
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{
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GObjectClass parent_class;
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};
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#define XSERVER_TIME_IS_BEFORE_ASSUMING_REAL_TIMESTAMPS(time1, time2) \
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( (( (time1) < (time2) ) && ( (time2) - (time1) < ((guint32)-1)/2 )) || \
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(( (time1) > (time2) ) && ( (time1) - (time2) > ((guint32)-1)/2 )) \
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)
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/**
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* XSERVER_TIME_IS_BEFORE:
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*
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* See the docs for meta_display_xserver_time_is_before().
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*/
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#define XSERVER_TIME_IS_BEFORE(time1, time2) \
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( (time1) == 0 || \
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(XSERVER_TIME_IS_BEFORE_ASSUMING_REAL_TIMESTAMPS(time1, time2) && \
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(time2) != 0) \
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)
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gboolean meta_display_open (void);
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void meta_display_close (MetaDisplay *display,
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guint32 timestamp);
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MetaScreen* meta_display_screen_for_x_screen (MetaDisplay *display,
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Screen *screen);
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MetaScreen* meta_display_screen_for_xwindow (MetaDisplay *display,
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Window xindow);
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void meta_display_grab (MetaDisplay *display);
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void meta_display_ungrab (MetaDisplay *display);
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void meta_display_unmanage_screen (MetaDisplay *display,
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MetaScreen *screen,
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guint32 timestamp);
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void meta_display_unmanage_windows_for_screen (MetaDisplay *display,
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MetaScreen *screen,
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guint32 timestamp);
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/* Utility function to compare the stacking of two windows */
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int meta_display_stack_cmp (const void *a,
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const void *b);
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/* A given MetaWindow may have various X windows that "belong"
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* to it, such as the frame window.
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*/
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MetaWindow* meta_display_lookup_x_window (MetaDisplay *display,
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Window xwindow);
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void meta_display_register_x_window (MetaDisplay *display,
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Window *xwindowp,
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MetaWindow *window);
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void meta_display_unregister_x_window (MetaDisplay *display,
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Window xwindow);
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void meta_display_notify_window_created (MetaDisplay *display,
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MetaWindow *window);
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GSList* meta_display_list_windows (MetaDisplay *display,
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MetaListWindowsFlags flags);
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MetaDisplay* meta_display_for_x_display (Display *xdisplay);
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MetaDisplay* meta_get_display (void);
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Cursor meta_display_create_x_cursor (MetaDisplay *display,
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MetaCursor cursor);
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void meta_display_set_grab_op_cursor (MetaDisplay *display,
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MetaScreen *screen,
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MetaGrabOp op,
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gboolean change_pointer,
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Window grab_xwindow,
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guint32 timestamp);
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void meta_display_check_threshold_reached (MetaDisplay *display,
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int x,
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int y);
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void meta_display_grab_window_buttons (MetaDisplay *display,
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Window xwindow);
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void meta_display_ungrab_window_buttons (MetaDisplay *display,
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Window xwindow);
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void meta_display_grab_focus_window_button (MetaDisplay *display,
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MetaWindow *window);
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void meta_display_ungrab_focus_window_button (MetaDisplay *display,
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MetaWindow *window);
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/* Next function is defined in edge-resistance.c */
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void meta_display_cleanup_edges (MetaDisplay *display);
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/* make a request to ensure the event serial has changed */
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void meta_display_increment_event_serial (MetaDisplay *display);
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void meta_display_update_active_window_hint (MetaDisplay *display);
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/* utility goo */
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const char* meta_event_mode_to_string (int m);
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const char* meta_event_detail_to_string (int d);
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void meta_display_queue_retheme_all_windows (MetaDisplay *display);
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void meta_display_retheme_all (void);
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void meta_display_set_cursor_theme (const char *theme,
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int size);
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void meta_display_ping_window (MetaDisplay *display,
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MetaWindow *window,
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guint32 timestamp,
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MetaWindowPingFunc ping_reply_func,
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MetaWindowPingFunc ping_timeout_func,
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void *user_data);
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gboolean meta_display_window_has_pending_pings (MetaDisplay *display,
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MetaWindow *window);
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int meta_resize_gravity_from_grab_op (MetaGrabOp op);
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gboolean meta_grab_op_is_moving (MetaGrabOp op);
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gboolean meta_grab_op_is_resizing (MetaGrabOp op);
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void meta_display_devirtualize_modifiers (MetaDisplay *display,
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MetaVirtualModifier modifiers,
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unsigned int *mask);
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void meta_display_increment_focus_sentinel (MetaDisplay *display);
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void meta_display_decrement_focus_sentinel (MetaDisplay *display);
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gboolean meta_display_focus_sentinel_clear (MetaDisplay *display);
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void meta_display_queue_autoraise_callback (MetaDisplay *display,
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MetaWindow *window);
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void meta_display_remove_autoraise_callback (MetaDisplay *display);
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void meta_display_overlay_key_activate (MetaDisplay *display);
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/* In above-tab-keycode.c */
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guint meta_display_get_above_tab_keycode (MetaDisplay *display);
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#endif
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