mutter/src/core/display-private.h

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Mutter X display handler */
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/*
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* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2002 Red Hat, Inc.
* Copyright (C) 2003 Rob Adams
* 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
* 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.
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*
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* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
#ifndef META_DISPLAY_PRIVATE_H
#define META_DISPLAY_PRIVATE_H
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#include "meta/display.h"
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#include <glib.h>
#include <X11/extensions/sync.h>
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#include <X11/Xlib.h>
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#ifdef HAVE_STARTUP_NOTIFICATION
#include <libsn/sn.h>
#endif
#include "clutter/clutter.h"
#include "core/keybindings-private.h"
#include "core/meta-gesture-tracker-private.h"
#include "core/stack-tracker.h"
#include "core/startup-notification-private.h"
#include "meta/barrier.h"
#include "meta/boxes.h"
#include "meta/common.h"
#include "meta/meta-selection.h"
#include "meta/prefs.h"
typedef struct _MetaBell MetaBell;
typedef struct _MetaStack MetaStack;
typedef struct _MetaUISlave MetaUISlave;
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Merge of all the changes on the constraints_experiments branch. This is 2005-11-18 Elijah Newren <newren@gmail.com> Merge of all the changes on the constraints_experiments branch. This is just a summary, to get the full ChangeLog of those changes (approx. 2000 lines): cvs -q -z3 update -Pd -r constraints_experiments cvs -q -z3 diff -pu -r CONSTRAINTS_EXPERIMENTS_BRANCHPOINT ChangeLog Bugs fixed: unfiled - constraints.c is overly complicated[1] unfiled - constraints.c is not robust when all constraints cannot simultaneously be met (constraints need to be prioritized) unfiled - keep-titlebar-onscreen constraint is decoration unaware (since get_outermost_onscreen_positions() forgets to include decorations) unfiled - keyboard snap-moving and snap-resizing snap to hidden edges 109553 - gravity w/ simultaneous move & resize doesn't work 113601 - maximize vertical and horizontal should toggle and be constrained 122196 - windows show up under vertical panels 122670 - jerky/random resizing of window via keyboard[2] 124582 - keyboard and mouse snap-resizing and snap-moving erroneously moves the window multidimensionally 136307 - don't allow apps to resize themselves off the screen (*cough* filechooser *cough*) 142016, 143784 - windows should not span multiple xineramas unless placed there by the user 143145 - clamp new windows to screensize and force them onscreen, if they'll fit 144126 - Handle pathological strut lists sanely[3] 149867 - fixed aspect ratio windows are difficult to resize[4] 152898 - make screen edges consistent; allow easy slamming of windows into the left, right, and bottom edges of the screen too. 154706 - bouncing weirdness at screen edge with keyboard moving or resizing 156699 - avoid struts when placing windows, if possible (nasty a11y blocker) 302456 - dragging offscreen too restrictive 304857 - wireframe moving off the top of the screen is misleading 308521 - make uni-directional resizing easier with alt-middle-drag and prevent the occasional super annoying resize-the-wrong-side(s) behavior 312007 - snap-resize moves windows with a minimum size constraint 312104 - resizing the top of a window can cause the bottom to grow 319351 - don't instantly snap on mouse-move-snapping, remove braindeadedness of having order of releasing shift and releasing button press matter so much [1] fixed in my opinion, anyway. [2] Actually, it's not totally fixed--it's just annoying instead of almost completely unusable. Matthias had a suggestion that may fix the remainder of the problems (see http://tinyurl.com/bwzuu). [3] This bug was originally about not-quite-so-pathological cases but was left open for the worse cases. The code from the branch handles the remainder of the cases mentioned in this bug. [4] Actually, although it's far better there's still some minor issues left: a slight drift that's only noticeable after lots of resizing, and potential problems with partially onscreen constraints due to not clearing any fixed_directions flags (aspect ratio windows get resized in both directions and thus aren't fixed in one of them) New feature: 81704 - edge resistance for user move and resize operations; in particular 3 different kinds of resistance are implemented: Pixel-Distance: window movement is resisted when it aligns with an edge unless the movement is greater than a threshold number of pixels Timeout: window movement past an edge is prevented until a certain amount of time has elapsed during the operation since the first request to move it past that edge Keyboard-Buildup: when moving or resizing with the keyboard, once a window is aligned with a certain edge it cannot move past until the correct direction has been pressed enough times (e.g. 2 or 3 times) Major changes: - constraints.c has been rewritten; very few lines of code from the old version remain. There is a comment near the top of the function explaining the basics of how the new framework works. A more detailed explanation can be found in doc/how-constraints-works.txt - edge-resistance.[ch] are new files implementing edge-resistance. - boxes.[ch] are new files containing low-level error-prone functions used heavily in constraints.c and edge-resistance.c, among various places throughout the code. testboxes.c contains a thorough testsuite for the boxes.[ch] functions compiled into a program, testboxes. - meta_window_move_resize_internal() *must* be told the gravity of the associated operation (if it's just a move operation, the gravity will be ignored, but for resize and move+resize the correct value is needed) - the craziness of different values that meta_window_move_resize_internal() accepts has been documented in a large comment at the beginning of the function. It may be possible to clean this up some, but until then things will remain as they were before--caller beware. - screen and xinerama usable areas (i.e. places not covered by e.g. panels) are cached in the workspace now, as are the screen and xinerama edges. These get updated with the workarea in src/workspace.c:ensure_work_areas_validated()
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typedef struct MetaEdgeResistanceData MetaEdgeResistanceData;
typedef enum
{
META_LIST_DEFAULT = 0, /* normal windows */
META_LIST_INCLUDE_OVERRIDE_REDIRECT = 1 << 0, /* normal and O-R */
META_LIST_SORTED = 1 << 1, /* sort list by mru */
} MetaListWindowsFlags;
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#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */
#define _NET_WM_STATE_ADD 1 /* add/set property */
#define _NET_WM_STATE_TOGGLE 2 /* toggle property */
/* This is basically a bogus number, just has to be large enough
* to handle the expected case of the alt+tab operation, where
* we want to ignore serials from UnmapNotify on the tab popup,
* and the LeaveNotify/EnterNotify from the pointer ungrab. It
* also has to be big enough to hold ignored serials from the point
* where we reshape the stage to the point where we get events back.
*/
#define N_IGNORED_CROSSING_SERIALS 10
typedef enum
{
META_TILE_NONE,
META_TILE_LEFT,
META_TILE_RIGHT,
META_TILE_MAXIMIZED
} MetaTileMode;
typedef enum
{
/* Normal interaction where you're interacting with windows.
* Events go to windows normally. */
META_EVENT_ROUTE_NORMAL,
/* In a window operation like moving or resizing. All events
* goes to MetaWindow, but not to the actual client window. */
META_EVENT_ROUTE_WINDOW_OP,
/* In a compositor grab operation. All events go to the
* compositor plugin. */
META_EVENT_ROUTE_COMPOSITOR_GRAB,
/* A Wayland application has a popup open. All events go to
* the Wayland application. */
META_EVENT_ROUTE_WAYLAND_POPUP,
/* The user is clicking on a window button. */
META_EVENT_ROUTE_FRAME_BUTTON,
} MetaEventRoute;
typedef void (* MetaDisplayWindowFunc) (MetaWindow *window,
gpointer user_data);
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struct _MetaDisplay
{
GObject parent_instance;
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MetaX11Display *x11_display;
int clutter_event_filter;
/* Our best guess as to the "currently" focused window (that is, the
* window that we expect will be focused at the point when the X
* server processes our next request), and the serial of the request
* or event that caused this.
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*/
MetaWindow *focus_window;
Big patch to cover about 6 different issues in order to correct rare 2005-02-20 Elijah Newren <newren@gmail.com> Big patch to cover about 6 different issues in order to correct rare problems with timestamps (make sure window selected in tasklist actually gets focus, sanity check timestamps to avoid rogue apps hosing the system, correct the updating of net_wm_user_time, correctly handle timestamps of 0 when comparing xserver timestamps for those who have had their systems up for over 25 days or so, add some debugging information to verbose logs, some code cleanups). Fixes all issues listed in #167358. * src/display.h: (struct _MetaDisplay): clarify comment on last_focus_time, introduce a new variable--last_user_time, (XSERVER_TIME_IS_BEFORE macro): put this functionality into a separate macro and then introduce a new macro with this name that uses the old one but adds additional special-case checks for timestamps that are 0, (comment to meta_display_set_input_focus_window): add information about how last_user_time should be used in this function * src/display.c (santiy_check_timestamps): new function, (meta_display_open): intialize display->last_user_time, (meta_display_get_current_time_roundtrip): use the timestamp, which is known to be good, in order to sanity_check_timestamps, (event_callback): use the new meta_window_ste_user_time() function in order to correct problems, use the timestamp of KeyPress and ButtonPress events, which are known to be good, in order to sanity_check_timestamps, (timestamp_too_old): new function for common behavior of meta_display_focus_the_no_focus_window and meta_display_set_input_focus_window, with added checking for display->last_user_time in addition to display->last_focus_time, (meta_display_set_input_focus_window): replace some of the code with a call to timestamp_too_old(), (meta_display_focus_the_no_focus_window): replace some of th ecode with a call to timestamp_too_old() * src/window.h: (meta_window_set_user_time): new function to abstract the many things that need to be done when updating the net_wm_user_time of any window * src/window.c: (meta_window_activate): add debugging spew, make sure the comparison is made with last_user_time NOT last_focus_time, use meta_window_set_user_time() function in order to correct problems, (meta_window_client_message): add a newline to a debugging message to make them easier to read, (meta_window_set_user_time): new function * src/window-props.c (reload_net_wm_user_time): use the new meta_window_ste_user_time() function in order to correct problems
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/* last timestamp passed to XSetInputFocus */
Fix issues on 64-bit machines with timestamps by using guint32 (like gtk+ 2006-09-13 Elijah Newren <newren gmail com> * src/common.h (MetaWindowMenuFunc): * src/core.[ch] (meta_core_user_lower_and_unfocus, meta_core_user_focus, meta_core_show_window_menu, meta_core_begin_grab_op, meta_core_end_grab_op): * src/delete.c (delete_ping_reply_func, delete_ping_timeout_func, meta_window_delete): * src/display.[ch] (struct MetaDisplay, struct MetaPingData, sanity_check_timestamps, meta_display_open, event_callback, meta_spew_event, meta_display_set_grab_op_cursor, meta_display_begin_grab_op, meta_display_end_grab_op, meta_display_ping_timeout, meta_display_ping_window, process_pong_message, timestamp_too_old, meta_display_set_input_focus_window): * src/keybindings.[ch] (grab_keyboard, ungrab_keyboard, meta_screen_grab_all_keys, meta_window_grab_all_keys, meta_window_ungrab_all_keys, error_on_generic_command, error_on_command, error_on_terminal_command): * src/metacity-dialog.c (on_realize, warn_about_no_sm_support, error_about_command, main): * src/screen.[ch] (struct _MetaScreen, meta_screen_new, meta_screen_show_desktop, meta_screen_apply_startup_properties): * src/session.c (warn_about_lame_clients_and_finish_interact): * src/window.[ch] (struct _MetaWindow, intervening_user_event_occurred, window_activate, meta_window_delete, meta_window_focus, meta_window_send_icccm_message, meta_window_client_message, menu_callback, meta_window_show_menu, struct EventScannerData, check_use_this_motion_notify, meta_window_begin_grab_op, meta_window_set_user_time): * src/workspace.[ch] (focus_ancestor_or_mru_window, meta_workspace_activate_with_focus, meta_workspace_activate, meta_workspace_focus_default_window, focus_ancestor_or_mru_window): Fix issues on 64-bit machines with timestamps by using guint32 (like gtk+ does) instead of Time. #348305
2006-09-13 12:32:33 -04:00
guint32 last_focus_time;
Big patch to cover about 6 different issues in order to correct rare 2005-02-20 Elijah Newren <newren@gmail.com> Big patch to cover about 6 different issues in order to correct rare problems with timestamps (make sure window selected in tasklist actually gets focus, sanity check timestamps to avoid rogue apps hosing the system, correct the updating of net_wm_user_time, correctly handle timestamps of 0 when comparing xserver timestamps for those who have had their systems up for over 25 days or so, add some debugging information to verbose logs, some code cleanups). Fixes all issues listed in #167358. * src/display.h: (struct _MetaDisplay): clarify comment on last_focus_time, introduce a new variable--last_user_time, (XSERVER_TIME_IS_BEFORE macro): put this functionality into a separate macro and then introduce a new macro with this name that uses the old one but adds additional special-case checks for timestamps that are 0, (comment to meta_display_set_input_focus_window): add information about how last_user_time should be used in this function * src/display.c (santiy_check_timestamps): new function, (meta_display_open): intialize display->last_user_time, (meta_display_get_current_time_roundtrip): use the timestamp, which is known to be good, in order to sanity_check_timestamps, (event_callback): use the new meta_window_ste_user_time() function in order to correct problems, use the timestamp of KeyPress and ButtonPress events, which are known to be good, in order to sanity_check_timestamps, (timestamp_too_old): new function for common behavior of meta_display_focus_the_no_focus_window and meta_display_set_input_focus_window, with added checking for display->last_user_time in addition to display->last_focus_time, (meta_display_set_input_focus_window): replace some of the code with a call to timestamp_too_old(), (meta_display_focus_the_no_focus_window): replace some of th ecode with a call to timestamp_too_old() * src/window.h: (meta_window_set_user_time): new function to abstract the many things that need to be done when updating the net_wm_user_time of any window * src/window.c: (meta_window_activate): add debugging spew, make sure the comparison is made with last_user_time NOT last_focus_time, use meta_window_set_user_time() function in order to correct problems, (meta_window_client_message): add a newline to a debugging message to make them easier to read, (meta_window_set_user_time): new function * src/window-props.c (reload_net_wm_user_time): use the new meta_window_ste_user_time() function in order to correct problems
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/* last user interaction time in any app */
Fix issues on 64-bit machines with timestamps by using guint32 (like gtk+ 2006-09-13 Elijah Newren <newren gmail com> * src/common.h (MetaWindowMenuFunc): * src/core.[ch] (meta_core_user_lower_and_unfocus, meta_core_user_focus, meta_core_show_window_menu, meta_core_begin_grab_op, meta_core_end_grab_op): * src/delete.c (delete_ping_reply_func, delete_ping_timeout_func, meta_window_delete): * src/display.[ch] (struct MetaDisplay, struct MetaPingData, sanity_check_timestamps, meta_display_open, event_callback, meta_spew_event, meta_display_set_grab_op_cursor, meta_display_begin_grab_op, meta_display_end_grab_op, meta_display_ping_timeout, meta_display_ping_window, process_pong_message, timestamp_too_old, meta_display_set_input_focus_window): * src/keybindings.[ch] (grab_keyboard, ungrab_keyboard, meta_screen_grab_all_keys, meta_window_grab_all_keys, meta_window_ungrab_all_keys, error_on_generic_command, error_on_command, error_on_terminal_command): * src/metacity-dialog.c (on_realize, warn_about_no_sm_support, error_about_command, main): * src/screen.[ch] (struct _MetaScreen, meta_screen_new, meta_screen_show_desktop, meta_screen_apply_startup_properties): * src/session.c (warn_about_lame_clients_and_finish_interact): * src/window.[ch] (struct _MetaWindow, intervening_user_event_occurred, window_activate, meta_window_delete, meta_window_focus, meta_window_send_icccm_message, meta_window_client_message, menu_callback, meta_window_show_menu, struct EventScannerData, check_use_this_motion_notify, meta_window_begin_grab_op, meta_window_set_user_time): * src/workspace.[ch] (focus_ancestor_or_mru_window, meta_workspace_activate_with_focus, meta_workspace_activate, meta_workspace_focus_default_window, focus_ancestor_or_mru_window): Fix issues on 64-bit machines with timestamps by using guint32 (like gtk+ does) instead of Time. #348305
2006-09-13 12:32:33 -04:00
guint32 last_user_time;
Big patch to cover about 6 different issues in order to correct rare 2005-02-20 Elijah Newren <newren@gmail.com> Big patch to cover about 6 different issues in order to correct rare problems with timestamps (make sure window selected in tasklist actually gets focus, sanity check timestamps to avoid rogue apps hosing the system, correct the updating of net_wm_user_time, correctly handle timestamps of 0 when comparing xserver timestamps for those who have had their systems up for over 25 days or so, add some debugging information to verbose logs, some code cleanups). Fixes all issues listed in #167358. * src/display.h: (struct _MetaDisplay): clarify comment on last_focus_time, introduce a new variable--last_user_time, (XSERVER_TIME_IS_BEFORE macro): put this functionality into a separate macro and then introduce a new macro with this name that uses the old one but adds additional special-case checks for timestamps that are 0, (comment to meta_display_set_input_focus_window): add information about how last_user_time should be used in this function * src/display.c (santiy_check_timestamps): new function, (meta_display_open): intialize display->last_user_time, (meta_display_get_current_time_roundtrip): use the timestamp, which is known to be good, in order to sanity_check_timestamps, (event_callback): use the new meta_window_ste_user_time() function in order to correct problems, use the timestamp of KeyPress and ButtonPress events, which are known to be good, in order to sanity_check_timestamps, (timestamp_too_old): new function for common behavior of meta_display_focus_the_no_focus_window and meta_display_set_input_focus_window, with added checking for display->last_user_time in addition to display->last_focus_time, (meta_display_set_input_focus_window): replace some of the code with a call to timestamp_too_old(), (meta_display_focus_the_no_focus_window): replace some of th ecode with a call to timestamp_too_old() * src/window.h: (meta_window_set_user_time): new function to abstract the many things that need to be done when updating the net_wm_user_time of any window * src/window.c: (meta_window_activate): add debugging spew, make sure the comparison is made with last_user_time NOT last_focus_time, use meta_window_set_user_time() function in order to correct problems, (meta_window_client_message): add a newline to a debugging message to make them easier to read, (meta_window_set_user_time): new function * src/window-props.c (reload_net_wm_user_time): use the new meta_window_ste_user_time() function in order to correct problems
2005-02-20 12:14:16 -05:00
/* whether we're using mousenav (only relevant for sloppy&mouse focus modes;
* !mouse_mode means "keynav mode")
*/
guint mouse_mode : 1;
/* Helper var used when focus_new_windows setting is 'strict'; only
* relevant in 'strict' mode and if the focus window is a terminal.
* In that case, we don't allow new windows to take focus away from
* a terminal, but if the user explicitly did something that should
* allow a different window to gain focus (e.g. global keybinding or
* clicking on a dock), then we will allow the transfer.
*/
guint allow_terminal_deactivation : 1;
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/*< private-ish >*/
GHashTable *stamps;
GHashTable *wayland_windows;
/* serials of leave/unmap events that may
* correspond to an enter event we should
* ignore
*/
unsigned long ignored_crossing_serials[N_IGNORED_CROSSING_SERIALS];
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guint32 current_time;
/* We maintain a sequence counter, incremented for each #MetaWindow
* created. This is exposed by meta_window_get_stable_sequence()
* but is otherwise not used inside mutter.
*
* It can be useful to plugins which want to sort windows in a
* stable fashion.
*/
guint32 window_sequence_counter;
/* Pings which we're waiting for a reply from */
GSList *pending_pings;
/* Pending focus change */
guint focus_timeout_id;
/* Pending autoraise */
guint autoraise_timeout_id;
MetaWindow* autoraise_window;
/* Event routing */
MetaEventRoute event_route;
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/* current window operation */
MetaGrabOp grab_op;
MetaWindow *grab_window;
int grab_button;
Merge reduced_resources mode patch from the branch. Offers wireframe and 2003-10-12 Havoc Pennington <hp@redhat.com> Merge reduced_resources mode patch from the branch. Offers wireframe and no-animations. * src/window.c (implement_showing): no animation if we are in reduced resources mode * src/prefs.c: add REDUCED_RESOURCES pref * src/window.c (meta_window_update_keyboard_resize): fix to modify grab_anchor_window_pos to grab_wireframe_rect if appropriate instead of window->rect * src/display.h (struct _MetaDisplay): add grab_start_serial used to avoid responding to events that occurred prior to the grab initialization. Still broken in various ways, specifically EnterNotify that occurred prior to XGrabPointer is processed as if it occurred after. * src/window.c (meta_window_update_keyboard_move): add this instead of meta_window_warp_pointer() crack * src/effects.c (meta_effects_update_wireframe): draw a kind of grid for the wireframe, instead of just a rectangle, like twm * src/screen.c (meta_screen_new): line width of 3 for the XOR gc "Reduced resources" mode based on wireframe patch from Erwann Chenede. Still pretty buggy. * src/keybindings.c (process_keyboard_move_grab) (process_keyboard_resize_grab): add gruesome wireframe hacks * src/display.c (meta_display_end_grab_op): end wireframe (meta_display_begin_grab_op): begin wireframe * src/effects.c (meta_effects_end_wireframe) (meta_effects_update_wireframe, meta_effects_begin_wireframe): routines to draw the wireframe stuff * src/window.c (window_should_be_showing): hide window when doing wireframe, commented out as it breaks grab * src/window.c (meta_window_refresh_resize_popup): handle wireframe * src/screen.c (meta_screen_new): create a screen->root_xor_gc for use in drawing wireframes * src/frames.c (meta_frames_push_delay_exposes): repaint everything before we delay
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int grab_anchor_root_x;
int grab_anchor_root_y;
MetaRectangle grab_anchor_window_pos;
MetaTileMode grab_tile_mode;
int grab_tile_monitor_number;
int grab_latest_motion_x;
int grab_latest_motion_y;
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guint grab_have_pointer : 1;
guint grab_have_keyboard : 1;
guint grab_frame_action : 1;
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MetaRectangle grab_initial_window_pos;
int grab_initial_x, grab_initial_y; /* These are only relevant for */
gboolean grab_threshold_movement_reached; /* raise_on_click == FALSE. */
int64_t grab_last_moveresize_time;
Merge of all the changes on the constraints_experiments branch. This is 2005-11-18 Elijah Newren <newren@gmail.com> Merge of all the changes on the constraints_experiments branch. This is just a summary, to get the full ChangeLog of those changes (approx. 2000 lines): cvs -q -z3 update -Pd -r constraints_experiments cvs -q -z3 diff -pu -r CONSTRAINTS_EXPERIMENTS_BRANCHPOINT ChangeLog Bugs fixed: unfiled - constraints.c is overly complicated[1] unfiled - constraints.c is not robust when all constraints cannot simultaneously be met (constraints need to be prioritized) unfiled - keep-titlebar-onscreen constraint is decoration unaware (since get_outermost_onscreen_positions() forgets to include decorations) unfiled - keyboard snap-moving and snap-resizing snap to hidden edges 109553 - gravity w/ simultaneous move & resize doesn't work 113601 - maximize vertical and horizontal should toggle and be constrained 122196 - windows show up under vertical panels 122670 - jerky/random resizing of window via keyboard[2] 124582 - keyboard and mouse snap-resizing and snap-moving erroneously moves the window multidimensionally 136307 - don't allow apps to resize themselves off the screen (*cough* filechooser *cough*) 142016, 143784 - windows should not span multiple xineramas unless placed there by the user 143145 - clamp new windows to screensize and force them onscreen, if they'll fit 144126 - Handle pathological strut lists sanely[3] 149867 - fixed aspect ratio windows are difficult to resize[4] 152898 - make screen edges consistent; allow easy slamming of windows into the left, right, and bottom edges of the screen too. 154706 - bouncing weirdness at screen edge with keyboard moving or resizing 156699 - avoid struts when placing windows, if possible (nasty a11y blocker) 302456 - dragging offscreen too restrictive 304857 - wireframe moving off the top of the screen is misleading 308521 - make uni-directional resizing easier with alt-middle-drag and prevent the occasional super annoying resize-the-wrong-side(s) behavior 312007 - snap-resize moves windows with a minimum size constraint 312104 - resizing the top of a window can cause the bottom to grow 319351 - don't instantly snap on mouse-move-snapping, remove braindeadedness of having order of releasing shift and releasing button press matter so much [1] fixed in my opinion, anyway. [2] Actually, it's not totally fixed--it's just annoying instead of almost completely unusable. Matthias had a suggestion that may fix the remainder of the problems (see http://tinyurl.com/bwzuu). [3] This bug was originally about not-quite-so-pathological cases but was left open for the worse cases. The code from the branch handles the remainder of the cases mentioned in this bug. [4] Actually, although it's far better there's still some minor issues left: a slight drift that's only noticeable after lots of resizing, and potential problems with partially onscreen constraints due to not clearing any fixed_directions flags (aspect ratio windows get resized in both directions and thus aren't fixed in one of them) New feature: 81704 - edge resistance for user move and resize operations; in particular 3 different kinds of resistance are implemented: Pixel-Distance: window movement is resisted when it aligns with an edge unless the movement is greater than a threshold number of pixels Timeout: window movement past an edge is prevented until a certain amount of time has elapsed during the operation since the first request to move it past that edge Keyboard-Buildup: when moving or resizing with the keyboard, once a window is aligned with a certain edge it cannot move past until the correct direction has been pressed enough times (e.g. 2 or 3 times) Major changes: - constraints.c has been rewritten; very few lines of code from the old version remain. There is a comment near the top of the function explaining the basics of how the new framework works. A more detailed explanation can be found in doc/how-constraints-works.txt - edge-resistance.[ch] are new files implementing edge-resistance. - boxes.[ch] are new files containing low-level error-prone functions used heavily in constraints.c and edge-resistance.c, among various places throughout the code. testboxes.c contains a thorough testsuite for the boxes.[ch] functions compiled into a program, testboxes. - meta_window_move_resize_internal() *must* be told the gravity of the associated operation (if it's just a move operation, the gravity will be ignored, but for resize and move+resize the correct value is needed) - the craziness of different values that meta_window_move_resize_internal() accepts has been documented in a large comment at the beginning of the function. It may be possible to clean this up some, but until then things will remain as they were before--caller beware. - screen and xinerama usable areas (i.e. places not covered by e.g. panels) are cached in the workspace now, as are the screen and xinerama edges. These get updated with the workarea in src/workspace.c:ensure_work_areas_validated()
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MetaEdgeResistanceData *grab_edge_resistance_data;
unsigned int grab_last_user_action_was_snap;
int grab_resize_timeout_id;
MetaKeyBindingManager key_binding_manager;
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/* Monitor cache */
unsigned int monitor_cache_invalidated : 1;
/* Opening the display */
unsigned int display_opening : 1;
/* Closing down the display */
int closing;
/* Managed by compositor.c */
MetaCompositor *compositor;
MetaGestureTracker *gesture_tracker;
ClutterEventSequence *pointer_emulating_sequence;
ClutterActor *current_pad_osd;
MetaStartupNotification *startup_notification;
MetaCursor current_cursor;
MetaStack *stack;
MetaStackTracker *stack_tracker;
guint tile_preview_timeout_id;
guint preview_tile_mode : 2;
GSList *startup_sequences;
guint work_area_later;
guint check_fullscreen_later;
MetaBell *bell;
MetaWorkspaceManager *workspace_manager;
MetaSoundPlayer *sound_player;
MetaSelectionSource *selection_source;
GBytes *saved_clipboard;
gchar *saved_clipboard_mimetype;
MetaSelection *selection;
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};
struct _MetaDisplayClass
{
GObjectClass parent_class;
};
Big patch to cover about 6 different issues in order to correct rare 2005-02-20 Elijah Newren <newren@gmail.com> Big patch to cover about 6 different issues in order to correct rare problems with timestamps (make sure window selected in tasklist actually gets focus, sanity check timestamps to avoid rogue apps hosing the system, correct the updating of net_wm_user_time, correctly handle timestamps of 0 when comparing xserver timestamps for those who have had their systems up for over 25 days or so, add some debugging information to verbose logs, some code cleanups). Fixes all issues listed in #167358. * src/display.h: (struct _MetaDisplay): clarify comment on last_focus_time, introduce a new variable--last_user_time, (XSERVER_TIME_IS_BEFORE macro): put this functionality into a separate macro and then introduce a new macro with this name that uses the old one but adds additional special-case checks for timestamps that are 0, (comment to meta_display_set_input_focus_window): add information about how last_user_time should be used in this function * src/display.c (santiy_check_timestamps): new function, (meta_display_open): intialize display->last_user_time, (meta_display_get_current_time_roundtrip): use the timestamp, which is known to be good, in order to sanity_check_timestamps, (event_callback): use the new meta_window_ste_user_time() function in order to correct problems, use the timestamp of KeyPress and ButtonPress events, which are known to be good, in order to sanity_check_timestamps, (timestamp_too_old): new function for common behavior of meta_display_focus_the_no_focus_window and meta_display_set_input_focus_window, with added checking for display->last_user_time in addition to display->last_focus_time, (meta_display_set_input_focus_window): replace some of the code with a call to timestamp_too_old(), (meta_display_focus_the_no_focus_window): replace some of th ecode with a call to timestamp_too_old() * src/window.h: (meta_window_set_user_time): new function to abstract the many things that need to be done when updating the net_wm_user_time of any window * src/window.c: (meta_window_activate): add debugging spew, make sure the comparison is made with last_user_time NOT last_focus_time, use meta_window_set_user_time() function in order to correct problems, (meta_window_client_message): add a newline to a debugging message to make them easier to read, (meta_window_set_user_time): new function * src/window-props.c (reload_net_wm_user_time): use the new meta_window_ste_user_time() function in order to correct problems
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#define XSERVER_TIME_IS_BEFORE_ASSUMING_REAL_TIMESTAMPS(time1, time2) \
( (( (time1) < (time2) ) && ( (time2) - (time1) < ((guint32)-1)/2 )) || \
(( (time1) > (time2) ) && ( (time1) - (time2) > ((guint32)-1)/2 )) \
Big patch to cover about 6 different issues in order to correct rare 2005-02-20 Elijah Newren <newren@gmail.com> Big patch to cover about 6 different issues in order to correct rare problems with timestamps (make sure window selected in tasklist actually gets focus, sanity check timestamps to avoid rogue apps hosing the system, correct the updating of net_wm_user_time, correctly handle timestamps of 0 when comparing xserver timestamps for those who have had their systems up for over 25 days or so, add some debugging information to verbose logs, some code cleanups). Fixes all issues listed in #167358. * src/display.h: (struct _MetaDisplay): clarify comment on last_focus_time, introduce a new variable--last_user_time, (XSERVER_TIME_IS_BEFORE macro): put this functionality into a separate macro and then introduce a new macro with this name that uses the old one but adds additional special-case checks for timestamps that are 0, (comment to meta_display_set_input_focus_window): add information about how last_user_time should be used in this function * src/display.c (santiy_check_timestamps): new function, (meta_display_open): intialize display->last_user_time, (meta_display_get_current_time_roundtrip): use the timestamp, which is known to be good, in order to sanity_check_timestamps, (event_callback): use the new meta_window_ste_user_time() function in order to correct problems, use the timestamp of KeyPress and ButtonPress events, which are known to be good, in order to sanity_check_timestamps, (timestamp_too_old): new function for common behavior of meta_display_focus_the_no_focus_window and meta_display_set_input_focus_window, with added checking for display->last_user_time in addition to display->last_focus_time, (meta_display_set_input_focus_window): replace some of the code with a call to timestamp_too_old(), (meta_display_focus_the_no_focus_window): replace some of th ecode with a call to timestamp_too_old() * src/window.h: (meta_window_set_user_time): new function to abstract the many things that need to be done when updating the net_wm_user_time of any window * src/window.c: (meta_window_activate): add debugging spew, make sure the comparison is made with last_user_time NOT last_focus_time, use meta_window_set_user_time() function in order to correct problems, (meta_window_client_message): add a newline to a debugging message to make them easier to read, (meta_window_set_user_time): new function * src/window-props.c (reload_net_wm_user_time): use the new meta_window_ste_user_time() function in order to correct problems
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)
/**
* XSERVER_TIME_IS_BEFORE:
*
* See the docs for meta_display_xserver_time_is_before().
*/
Big patch to cover about 6 different issues in order to correct rare 2005-02-20 Elijah Newren <newren@gmail.com> Big patch to cover about 6 different issues in order to correct rare problems with timestamps (make sure window selected in tasklist actually gets focus, sanity check timestamps to avoid rogue apps hosing the system, correct the updating of net_wm_user_time, correctly handle timestamps of 0 when comparing xserver timestamps for those who have had their systems up for over 25 days or so, add some debugging information to verbose logs, some code cleanups). Fixes all issues listed in #167358. * src/display.h: (struct _MetaDisplay): clarify comment on last_focus_time, introduce a new variable--last_user_time, (XSERVER_TIME_IS_BEFORE macro): put this functionality into a separate macro and then introduce a new macro with this name that uses the old one but adds additional special-case checks for timestamps that are 0, (comment to meta_display_set_input_focus_window): add information about how last_user_time should be used in this function * src/display.c (santiy_check_timestamps): new function, (meta_display_open): intialize display->last_user_time, (meta_display_get_current_time_roundtrip): use the timestamp, which is known to be good, in order to sanity_check_timestamps, (event_callback): use the new meta_window_ste_user_time() function in order to correct problems, use the timestamp of KeyPress and ButtonPress events, which are known to be good, in order to sanity_check_timestamps, (timestamp_too_old): new function for common behavior of meta_display_focus_the_no_focus_window and meta_display_set_input_focus_window, with added checking for display->last_user_time in addition to display->last_focus_time, (meta_display_set_input_focus_window): replace some of the code with a call to timestamp_too_old(), (meta_display_focus_the_no_focus_window): replace some of th ecode with a call to timestamp_too_old() * src/window.h: (meta_window_set_user_time): new function to abstract the many things that need to be done when updating the net_wm_user_time of any window * src/window.c: (meta_window_activate): add debugging spew, make sure the comparison is made with last_user_time NOT last_focus_time, use meta_window_set_user_time() function in order to correct problems, (meta_window_client_message): add a newline to a debugging message to make them easier to read, (meta_window_set_user_time): new function * src/window-props.c (reload_net_wm_user_time): use the new meta_window_ste_user_time() function in order to correct problems
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#define XSERVER_TIME_IS_BEFORE(time1, time2) \
( (time1) == 0 || \
Big patch to cover about 6 different issues in order to correct rare 2005-02-20 Elijah Newren <newren@gmail.com> Big patch to cover about 6 different issues in order to correct rare problems with timestamps (make sure window selected in tasklist actually gets focus, sanity check timestamps to avoid rogue apps hosing the system, correct the updating of net_wm_user_time, correctly handle timestamps of 0 when comparing xserver timestamps for those who have had their systems up for over 25 days or so, add some debugging information to verbose logs, some code cleanups). Fixes all issues listed in #167358. * src/display.h: (struct _MetaDisplay): clarify comment on last_focus_time, introduce a new variable--last_user_time, (XSERVER_TIME_IS_BEFORE macro): put this functionality into a separate macro and then introduce a new macro with this name that uses the old one but adds additional special-case checks for timestamps that are 0, (comment to meta_display_set_input_focus_window): add information about how last_user_time should be used in this function * src/display.c (santiy_check_timestamps): new function, (meta_display_open): intialize display->last_user_time, (meta_display_get_current_time_roundtrip): use the timestamp, which is known to be good, in order to sanity_check_timestamps, (event_callback): use the new meta_window_ste_user_time() function in order to correct problems, use the timestamp of KeyPress and ButtonPress events, which are known to be good, in order to sanity_check_timestamps, (timestamp_too_old): new function for common behavior of meta_display_focus_the_no_focus_window and meta_display_set_input_focus_window, with added checking for display->last_user_time in addition to display->last_focus_time, (meta_display_set_input_focus_window): replace some of the code with a call to timestamp_too_old(), (meta_display_focus_the_no_focus_window): replace some of th ecode with a call to timestamp_too_old() * src/window.h: (meta_window_set_user_time): new function to abstract the many things that need to be done when updating the net_wm_user_time of any window * src/window.c: (meta_window_activate): add debugging spew, make sure the comparison is made with last_user_time NOT last_focus_time, use meta_window_set_user_time() function in order to correct problems, (meta_window_client_message): add a newline to a debugging message to make them easier to read, (meta_window_set_user_time): new function * src/window-props.c (reload_net_wm_user_time): use the new meta_window_ste_user_time() function in order to correct problems
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(XSERVER_TIME_IS_BEFORE_ASSUMING_REAL_TIMESTAMPS(time1, time2) && \
(time2) != 0) \
)
gboolean meta_display_open (void);
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void meta_display_manage_all_xwindows (MetaDisplay *display);
void meta_display_unmanage_windows (MetaDisplay *display,
guint32 timestamp);
/* Utility function to compare the stacking of two windows */
int meta_display_stack_cmp (const void *a,
const void *b);
/* Each MetaWindow is uniquely identified by a 64-bit "stamp"; unlike a
* a MetaWindow *, a stamp will never be recycled
*/
MetaWindow* meta_display_lookup_stamp (MetaDisplay *display,
guint64 stamp);
void meta_display_register_stamp (MetaDisplay *display,
guint64 *stampp,
MetaWindow *window);
void meta_display_unregister_stamp (MetaDisplay *display,
guint64 stamp);
/* A "stack id" is a XID or a stamp */
#define META_STACK_ID_IS_X11(id) ((id) < G_GUINT64_CONSTANT(0x100000000))
META_EXPORT_TEST
MetaWindow* meta_display_lookup_stack_id (MetaDisplay *display,
guint64 stack_id);
/* for debug logging only; returns a human-description of the stack
* ID - a small number of buffers are recycled, so the result must
* be used immediately or copied */
const char *meta_display_describe_stack_id (MetaDisplay *display,
guint64 stack_id);
void meta_display_register_wayland_window (MetaDisplay *display,
MetaWindow *window);
void meta_display_unregister_wayland_window (MetaDisplay *display,
MetaWindow *window);
void meta_display_notify_window_created (MetaDisplay *display,
MetaWindow *window);
META_EXPORT_TEST
GSList* meta_display_list_windows (MetaDisplay *display,
MetaListWindowsFlags flags);
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MetaDisplay* meta_display_for_x_display (Display *xdisplay);
META_EXPORT_TEST
MetaDisplay* meta_get_display (void);
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void meta_display_reload_cursor (MetaDisplay *display);
void meta_display_update_cursor (MetaDisplay *display);
void meta_display_check_threshold_reached (MetaDisplay *display,
int x,
int y);
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void meta_display_grab_window_buttons (MetaDisplay *display,
Window xwindow);
void meta_display_ungrab_window_buttons (MetaDisplay *display,
Window xwindow);
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void meta_display_grab_focus_window_button (MetaDisplay *display,
MetaWindow *window);
void meta_display_ungrab_focus_window_button (MetaDisplay *display,
MetaWindow *window);
/* Next function is defined in edge-resistance.c */
void meta_display_cleanup_edges (MetaDisplay *display);
Merge of all the changes on the constraints_experiments branch. This is 2005-11-18 Elijah Newren <newren@gmail.com> Merge of all the changes on the constraints_experiments branch. This is just a summary, to get the full ChangeLog of those changes (approx. 2000 lines): cvs -q -z3 update -Pd -r constraints_experiments cvs -q -z3 diff -pu -r CONSTRAINTS_EXPERIMENTS_BRANCHPOINT ChangeLog Bugs fixed: unfiled - constraints.c is overly complicated[1] unfiled - constraints.c is not robust when all constraints cannot simultaneously be met (constraints need to be prioritized) unfiled - keep-titlebar-onscreen constraint is decoration unaware (since get_outermost_onscreen_positions() forgets to include decorations) unfiled - keyboard snap-moving and snap-resizing snap to hidden edges 109553 - gravity w/ simultaneous move & resize doesn't work 113601 - maximize vertical and horizontal should toggle and be constrained 122196 - windows show up under vertical panels 122670 - jerky/random resizing of window via keyboard[2] 124582 - keyboard and mouse snap-resizing and snap-moving erroneously moves the window multidimensionally 136307 - don't allow apps to resize themselves off the screen (*cough* filechooser *cough*) 142016, 143784 - windows should not span multiple xineramas unless placed there by the user 143145 - clamp new windows to screensize and force them onscreen, if they'll fit 144126 - Handle pathological strut lists sanely[3] 149867 - fixed aspect ratio windows are difficult to resize[4] 152898 - make screen edges consistent; allow easy slamming of windows into the left, right, and bottom edges of the screen too. 154706 - bouncing weirdness at screen edge with keyboard moving or resizing 156699 - avoid struts when placing windows, if possible (nasty a11y blocker) 302456 - dragging offscreen too restrictive 304857 - wireframe moving off the top of the screen is misleading 308521 - make uni-directional resizing easier with alt-middle-drag and prevent the occasional super annoying resize-the-wrong-side(s) behavior 312007 - snap-resize moves windows with a minimum size constraint 312104 - resizing the top of a window can cause the bottom to grow 319351 - don't instantly snap on mouse-move-snapping, remove braindeadedness of having order of releasing shift and releasing button press matter so much [1] fixed in my opinion, anyway. [2] Actually, it's not totally fixed--it's just annoying instead of almost completely unusable. Matthias had a suggestion that may fix the remainder of the problems (see http://tinyurl.com/bwzuu). [3] This bug was originally about not-quite-so-pathological cases but was left open for the worse cases. The code from the branch handles the remainder of the cases mentioned in this bug. [4] Actually, although it's far better there's still some minor issues left: a slight drift that's only noticeable after lots of resizing, and potential problems with partially onscreen constraints due to not clearing any fixed_directions flags (aspect ratio windows get resized in both directions and thus aren't fixed in one of them) New feature: 81704 - edge resistance for user move and resize operations; in particular 3 different kinds of resistance are implemented: Pixel-Distance: window movement is resisted when it aligns with an edge unless the movement is greater than a threshold number of pixels Timeout: window movement past an edge is prevented until a certain amount of time has elapsed during the operation since the first request to move it past that edge Keyboard-Buildup: when moving or resizing with the keyboard, once a window is aligned with a certain edge it cannot move past until the correct direction has been pressed enough times (e.g. 2 or 3 times) Major changes: - constraints.c has been rewritten; very few lines of code from the old version remain. There is a comment near the top of the function explaining the basics of how the new framework works. A more detailed explanation can be found in doc/how-constraints-works.txt - edge-resistance.[ch] are new files implementing edge-resistance. - boxes.[ch] are new files containing low-level error-prone functions used heavily in constraints.c and edge-resistance.c, among various places throughout the code. testboxes.c contains a thorough testsuite for the boxes.[ch] functions compiled into a program, testboxes. - meta_window_move_resize_internal() *must* be told the gravity of the associated operation (if it's just a move operation, the gravity will be ignored, but for resize and move+resize the correct value is needed) - the craziness of different values that meta_window_move_resize_internal() accepts has been documented in a large comment at the beginning of the function. It may be possible to clean this up some, but until then things will remain as they were before--caller beware. - screen and xinerama usable areas (i.e. places not covered by e.g. panels) are cached in the workspace now, as are the screen and xinerama edges. These get updated with the workarea in src/workspace.c:ensure_work_areas_validated()
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/* utility goo */
const char* meta_event_mode_to_string (int m);
const char* meta_event_detail_to_string (int d);
void meta_display_queue_retheme_all_windows (MetaDisplay *display);
void meta_display_ping_window (MetaWindow *window,
guint32 serial);
void meta_display_pong_for_serial (MetaDisplay *display,
guint32 serial);
int meta_resize_gravity_from_grab_op (MetaGrabOp op);
gboolean meta_grab_op_is_moving (MetaGrabOp op);
gboolean meta_grab_op_is_resizing (MetaGrabOp op);
gboolean meta_grab_op_is_mouse (MetaGrabOp op);
gboolean meta_grab_op_is_keyboard (MetaGrabOp op);
void meta_display_queue_autoraise_callback (MetaDisplay *display,
MetaWindow *window);
void meta_display_remove_autoraise_callback (MetaDisplay *display);
void meta_display_overlay_key_activate (MetaDisplay *display);
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void meta_display_accelerator_activate (MetaDisplay *display,
guint action,
ClutterKeyEvent *event);
gboolean meta_display_modifiers_accelerator_activate (MetaDisplay *display);
void meta_display_sync_wayland_input_focus (MetaDisplay *display);
void meta_display_update_focus_window (MetaDisplay *display,
MetaWindow *window);
void meta_display_sanity_check_timestamps (MetaDisplay *display,
guint32 timestamp);
gboolean meta_display_timestamp_too_old (MetaDisplay *display,
guint32 *timestamp);
void meta_display_remove_pending_pings_for_window (MetaDisplay *display,
MetaWindow *window);
MetaGestureTracker * meta_display_get_gesture_tracker (MetaDisplay *display);
gboolean meta_display_show_restart_message (MetaDisplay *display,
const char *message);
gboolean meta_display_request_restart (MetaDisplay *display);
gboolean meta_display_show_resize_popup (MetaDisplay *display,
gboolean show,
MetaRectangle *rect,
int display_w,
int display_h);
void meta_set_is_restart (gboolean whether);
void meta_display_cancel_touch (MetaDisplay *display);
gboolean meta_display_windows_are_interactable (MetaDisplay *display);
void meta_display_show_tablet_mapping_notification (MetaDisplay *display,
ClutterInputDevice *pad,
const gchar *pretty_name);
void meta_display_notify_pad_group_switch (MetaDisplay *display,
ClutterInputDevice *pad,
const gchar *pretty_name,
guint n_group,
guint n_mode,
guint n_modes);
void meta_display_foreach_window (MetaDisplay *display,
MetaListWindowsFlags flags,
MetaDisplayWindowFunc func,
gpointer data);
void meta_display_restacked (MetaDisplay *display);
void meta_display_update_tile_preview (MetaDisplay *display,
gboolean delay);
void meta_display_hide_tile_preview (MetaDisplay *display);
gboolean meta_display_apply_startup_properties (MetaDisplay *display,
MetaWindow *window);
void meta_display_queue_workarea_recalc (MetaDisplay *display);
void meta_display_queue_check_fullscreen (MetaDisplay *display);
MetaWindow *meta_display_get_pointer_window (MetaDisplay *display,
MetaWindow *not_this_one);
MetaWindow *meta_display_get_window_from_id (MetaDisplay *display,
uint64_t window_id);
uint64_t meta_display_generate_window_id (MetaDisplay *display);
void meta_display_init_x11 (MetaDisplay *display,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
gboolean meta_display_init_x11_finish (MetaDisplay *display,
GAsyncResult *result,
GError **error);
void meta_display_shutdown_x11 (MetaDisplay *display);
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#endif