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mutter-performance-source/src/core/workspace.c
Jasper St. Pierre a3bf9b01aa workspace: Don't try to use per-workspace MRU lists as a hint for focusing 
Commit 2fc880db switched from focusing the topmost window as the default
window to focusing the MRU window. This was done in alignment with the
introduction of per-workspace MRU lists to avoid problems where the window
stack was inadvertently changed when focusing windows during window switches.

Now that focusing windows don't have as big an impact on the stacking order,
we can revert back to focusing the top window, which is less confusing to the
user.

For now, leave per-workspace MRU lists, as they're a pretty good approximation
of a global MRU list, and it works well enough.

https://bugzilla.gnome.org/show_bug.cgi?id=620744
2012-03-20 17:08:34 -04:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Mutter Workspaces */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2003 Rob Adams
* Copyright (C) 2004, 2005 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.
*/
#include <config.h>
#include "screen-private.h"
#include <meta/workspace.h>
#include "workspace-private.h"
#include "boxes-private.h"
#include <meta/errors.h>
#include <meta/prefs.h>
#include <meta/compositor.h>
#include <X11/Xatom.h>
#include <string.h>
#ifdef HAVE_LIBCANBERRA
#include <canberra-gtk.h>
#endif
enum {
PROP_0,
PROP_N_WINDOWS,
};
void meta_workspace_queue_calc_showing (MetaWorkspace *workspace);
static void focus_ancestor_or_top_window (MetaWorkspace *workspace,
MetaWindow *not_this_one,
guint32 timestamp);
static void free_this (gpointer candidate,
gpointer dummy);
G_DEFINE_TYPE (MetaWorkspace, meta_workspace, G_TYPE_OBJECT);
enum
{
WINDOW_ADDED,
WINDOW_REMOVED,
LAST_SIGNAL
};
static guint signals [LAST_SIGNAL] = { 0 };
static void
meta_workspace_finalize (GObject *object)
{
/* Actual freeing done in meta_workspace_remove() for now */
}
static void
meta_workspace_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
switch (prop_id)
{
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_workspace_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaWorkspace *ws = META_WORKSPACE (object);
switch (prop_id)
{
case PROP_N_WINDOWS:
/*
* This is reliable, but not very efficient; should we store
* the list lenth ?
*/
g_value_set_uint (value, g_list_length (ws->windows));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_workspace_class_init (MetaWorkspaceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
object_class->finalize = meta_workspace_finalize;
object_class->get_property = meta_workspace_get_property;
object_class->set_property = meta_workspace_set_property;
signals[WINDOW_ADDED] = g_signal_new ("window-added",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
META_TYPE_WINDOW);
signals[WINDOW_REMOVED] = g_signal_new ("window-removed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
META_TYPE_WINDOW);
pspec = g_param_spec_uint ("n-windows",
"N Windows",
"Number of windows",
0, G_MAXUINT, 0,
G_PARAM_READABLE);
g_object_class_install_property (object_class,
PROP_N_WINDOWS,
pspec);
}
static void
meta_workspace_init (MetaWorkspace *workspace)
{
}
static void
maybe_add_to_list (MetaScreen *screen, MetaWindow *window, gpointer data)
{
GList **mru_list = data;
if (window->on_all_workspaces)
*mru_list = g_list_prepend (*mru_list, window);
}
MetaWorkspace*
meta_workspace_new (MetaScreen *screen)
{
MetaWorkspace *workspace;
workspace = g_object_new (META_TYPE_WORKSPACE, NULL);
workspace->screen = screen;
workspace->screen->workspaces =
g_list_append (workspace->screen->workspaces, workspace);
workspace->windows = NULL;
workspace->mru_list = NULL;
meta_screen_foreach_window (screen, maybe_add_to_list, &workspace->mru_list);
workspace->work_areas_invalid = TRUE;
workspace->work_area_monitor = NULL;
workspace->work_area_screen.x = 0;
workspace->work_area_screen.y = 0;
workspace->work_area_screen.width = 0;
workspace->work_area_screen.height = 0;
workspace->screen_region = NULL;
workspace->monitor_region = NULL;
workspace->screen_edges = NULL;
workspace->monitor_edges = NULL;
workspace->list_containing_self = g_list_prepend (NULL, workspace);
workspace->builtin_struts = NULL;
workspace->all_struts = NULL;
workspace->showing_desktop = FALSE;
return workspace;
}
/** Foreach function for workspace_free_struts() */
static void
free_this (gpointer candidate, gpointer dummy)
{
g_free (candidate);
}
/**
* Frees the combined struts list of a workspace.
*
* \param workspace The workspace.
*/
static void
workspace_free_all_struts (MetaWorkspace *workspace)
{
if (workspace->all_struts == NULL)
return;
g_slist_foreach (workspace->all_struts, free_this, NULL);
g_slist_free (workspace->all_struts);
workspace->all_struts = NULL;
}
/**
* Frees the struts list set with meta_workspace_set_builtin_struts
*
* \param workspace The workspace.
*/
static void
workspace_free_builtin_struts (MetaWorkspace *workspace)
{
if (workspace->builtin_struts == NULL)
return;
g_slist_foreach (workspace->builtin_struts, free_this, NULL);
g_slist_free (workspace->builtin_struts);
workspace->builtin_struts = NULL;
}
void
meta_workspace_remove (MetaWorkspace *workspace)
{
GList *tmp;
MetaScreen *screen;
int i;
g_return_if_fail (workspace != workspace->screen->active_workspace);
/* Here we assume all the windows are already on another workspace
* as well, so they won't be "orphaned"
*/
tmp = workspace->windows;
while (tmp != NULL)
{
GList *next;
MetaWindow *window = tmp->data;
next = tmp->next;
/* pop front of list we're iterating over */
meta_workspace_remove_window (workspace, window);
g_assert (window->workspace != NULL);
tmp = next;
}
g_assert (workspace->windows == NULL);
screen = workspace->screen;
workspace->screen->workspaces =
g_list_remove (workspace->screen->workspaces, workspace);
g_free (workspace->work_area_monitor);
g_list_free (workspace->mru_list);
g_list_free (workspace->list_containing_self);
workspace_free_builtin_struts (workspace);
/* screen.c:update_num_workspaces(), which calls us, removes windows from
* workspaces first, which can cause the workareas on the workspace to be
* invalidated (and hence for struts/regions/edges to be freed).
* So, no point trying to double free it; that causes a crash
* anyway. #361804.
*/
if (!workspace->work_areas_invalid)
{
workspace_free_all_struts (workspace);
for (i = 0; i < screen->n_monitor_infos; i++)
meta_rectangle_free_list_and_elements (workspace->monitor_region[i]);
g_free (workspace->monitor_region);
meta_rectangle_free_list_and_elements (workspace->screen_region);
meta_rectangle_free_list_and_elements (workspace->screen_edges);
meta_rectangle_free_list_and_elements (workspace->monitor_edges);
}
g_object_unref (workspace);
/* don't bother to reset names, pagers can just ignore
* extra ones
*/
}
void
meta_workspace_add_window (MetaWorkspace *workspace,
MetaWindow *window)
{
g_return_if_fail (window->workspace == NULL);
/* If the window is on all workspaces, we want to add it to all mru
* lists, otherwise just add it to this workspaces mru list
*/
if (window->on_all_workspaces)
{
if (window->workspace == NULL)
{
GList* tmp = window->screen->workspaces;
while (tmp)
{
MetaWorkspace* work = (MetaWorkspace*) tmp->data;
if (!g_list_find (work->mru_list, window))
work->mru_list = g_list_prepend (work->mru_list, window);
tmp = tmp->next;
}
}
}
else
{
g_assert (g_list_find (workspace->mru_list, window) == NULL);
workspace->mru_list = g_list_prepend (workspace->mru_list, window);
}
workspace->windows = g_list_prepend (workspace->windows, window);
window->workspace = workspace;
meta_window_set_current_workspace_hint (window);
if (window->struts)
{
meta_topic (META_DEBUG_WORKAREA,
"Invalidating work area of workspace %d since we're adding window %s to it\n",
meta_workspace_index (workspace), window->desc);
meta_workspace_invalidate_work_area (workspace);
}
/* queue a move_resize since changing workspaces may change
* the relevant struts
*/
meta_window_queue (window, META_QUEUE_CALC_SHOWING|META_QUEUE_MOVE_RESIZE);
g_signal_emit (workspace, signals[WINDOW_ADDED], 0, window);
g_object_notify (G_OBJECT (workspace), "n-windows");
}
void
meta_workspace_remove_window (MetaWorkspace *workspace,
MetaWindow *window)
{
g_return_if_fail (window->workspace == workspace);
workspace->windows = g_list_remove (workspace->windows, window);
window->workspace = NULL;
/* If the window is on all workspaces, we don't want to remove it
* from the MRU list unless this causes it to be removed from all
* workspaces
*/
if (window->on_all_workspaces)
{
GList* tmp = window->screen->workspaces;
while (tmp)
{
MetaWorkspace* work = (MetaWorkspace*) tmp->data;
work->mru_list = g_list_remove (work->mru_list, window);
tmp = tmp->next;
}
}
else
{
workspace->mru_list = g_list_remove (workspace->mru_list, window);
g_assert (g_list_find (workspace->mru_list, window) == NULL);
}
meta_window_set_current_workspace_hint (window);
if (window->struts)
{
meta_topic (META_DEBUG_WORKAREA,
"Invalidating work area of workspace %d since we're removing window %s from it\n",
meta_workspace_index (workspace), window->desc);
meta_workspace_invalidate_work_area (workspace);
}
/* queue a move_resize since changing workspaces may change
* the relevant struts
*/
meta_window_queue (window, META_QUEUE_CALC_SHOWING|META_QUEUE_MOVE_RESIZE);
g_signal_emit (workspace, signals[WINDOW_REMOVED], 0, window);
g_object_notify (G_OBJECT (workspace), "n-windows");
}
void
meta_workspace_relocate_windows (MetaWorkspace *workspace,
MetaWorkspace *new_home)
{
GList *tmp;
GList *copy;
g_return_if_fail (workspace != new_home);
/* can't modify list we're iterating over */
copy = g_list_copy (workspace->windows);
tmp = copy;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
meta_workspace_remove_window (workspace, window);
meta_workspace_add_window (new_home, window);
tmp = tmp->next;
}
g_list_free (copy);
g_assert (workspace->windows == NULL);
}
void
meta_workspace_queue_calc_showing (MetaWorkspace *workspace)
{
GList *tmp;
tmp = workspace->windows;
while (tmp != NULL)
{
meta_window_queue (tmp->data, META_QUEUE_CALC_SHOWING);
tmp = tmp->next;
}
}
static void
workspace_switch_sound(MetaWorkspace *from,
MetaWorkspace *to)
{
#ifdef HAVE_LIBCANBERRA
MetaWorkspaceLayout layout;
int i, nw, x, y, fi, ti;
const char *e;
nw = meta_screen_get_n_workspaces(from->screen);
fi = meta_workspace_index(from);
ti = meta_workspace_index(to);
meta_screen_calc_workspace_layout(from->screen,
nw,
fi,
&layout);
for (i = 0; i < nw; i++)
if (layout.grid[i] == ti)
break;
if (i >= nw)
{
meta_bug("Failed to find destination workspace in layout\n");
goto finish;
}
y = i / layout.cols;
x = i % layout.cols;
/* We priorize horizontal over vertical movements here. The
rationale for this is that horizontal movements are probably more
interesting for sound effects because speakers are usually
positioned on a horizontal and not a vertical axis. i.e. your
spatial "Woosh!" effects will easily be able to encode horizontal
movement but not such much vertical movement. */
if (x < layout.current_col)
e = "desktop-switch-left";
else if (x > layout.current_col)
e = "desktop-switch-right";
else if (y < layout.current_row)
e = "desktop-switch-up";
else if (y > layout.current_row)
e = "desktop-switch-down";
else
{
meta_bug("Uh, origin and destination workspace at same logic position!\n");
goto finish;
}
ca_context_play(ca_gtk_context_get(), 1,
CA_PROP_EVENT_ID, e,
CA_PROP_EVENT_DESCRIPTION, "Desktop switched",
CA_PROP_CANBERRA_CACHE_CONTROL, "permanent",
NULL);
finish:
meta_screen_free_workspace_layout (&layout);
#endif /* HAVE_LIBCANBERRA */
}
/**
* meta_workspace_activate_with_focus:
* @workspace: a #MetaWorkspace
* @focus_this: the #MetaWindow to be focused, or %NULL
* @timestamp: timestamp for @focus_this
*
* Switches to @workspace and possibly activates the window @focus_this.
*
* The window @focus_this is activated by calling meta_window_activate()
* which will unminimize it and transient parents, raise it and give it
* the focus.
*
* If a window is currently being moved by the user, it will be
* moved to @workspace.
*
* The advantage of calling this function instead of meta_workspace_activate()
* followed by meta_window_activate() is that it happens as a unit, so
* no other window gets focused first before @focus_this.
*/
void
meta_workspace_activate_with_focus (MetaWorkspace *workspace,
MetaWindow *focus_this,
guint32 timestamp)
{
MetaWorkspace *old;
MetaWindow *move_window;
MetaScreen *screen;
MetaDisplay *display;
MetaCompositor *comp;
MetaWorkspaceLayout layout1, layout2;
gint num_workspaces, current_space, new_space;
MetaMotionDirection direction;
meta_verbose ("Activating workspace %d\n",
meta_workspace_index (workspace));
if (workspace->screen->active_workspace == workspace)
return;
/* Free any cached pointers to the workspaces's edges from
* a current resize or move operation */
meta_display_cleanup_edges (workspace->screen->display);
if (workspace->screen->active_workspace)
workspace_switch_sound (workspace->screen->active_workspace, workspace);
/* Note that old can be NULL; e.g. when starting up */
old = workspace->screen->active_workspace;
workspace->screen->active_workspace = workspace;
meta_screen_set_active_workspace_hint (workspace->screen);
/* If the "show desktop" mode is active for either the old workspace
* or the new one *but not both*, then update the
* _net_showing_desktop hint
*/
if (old && (old->showing_desktop ^ workspace->showing_desktop))
meta_screen_update_showing_desktop_hint (workspace->screen);
if (old == NULL)
return;
move_window = NULL;
if (workspace->screen->display->grab_op == META_GRAB_OP_MOVING ||
workspace->screen->display->grab_op == META_GRAB_OP_KEYBOARD_MOVING)
move_window = workspace->screen->display->grab_window;
if (move_window != NULL)
{
if (move_window->on_all_workspaces)
move_window = NULL; /* don't move it after all */
/* We put the window on the new workspace, flip spaces,
* then remove from old workspace, so the window
* never gets unmapped and we maintain the button grab
* on it.
*
* \bug This comment appears to be the reverse of what happens
*/
if (move_window && (move_window->workspace != workspace))
{
meta_workspace_remove_window (old, move_window);
meta_workspace_add_window (workspace, move_window);
}
}
meta_workspace_queue_calc_showing (old);
meta_workspace_queue_calc_showing (workspace);
/* FIXME: Why do we need this?!? Isn't it handled in the lines above? */
if (move_window)
/* Removes window from other spaces */
meta_window_change_workspace (move_window, workspace);
/*
* Notify the compositor that the active workspace is changing.
*/
screen = workspace->screen;
display = meta_screen_get_display (screen);
comp = meta_display_get_compositor (display);
direction = 0;
current_space = meta_workspace_index (old);
new_space = meta_workspace_index (workspace);
num_workspaces = meta_screen_get_n_workspaces (workspace->screen);
meta_screen_calc_workspace_layout (workspace->screen, num_workspaces,
current_space, &layout1);
meta_screen_calc_workspace_layout (workspace->screen, num_workspaces,
new_space, &layout2);
if (meta_ui_get_direction() == META_UI_DIRECTION_RTL)
{
if (layout1.current_col > layout2.current_col)
direction = META_MOTION_RIGHT;
else if (layout1.current_col < layout2.current_col)
direction = META_MOTION_LEFT;
}
else
{
if (layout1.current_col < layout2.current_col)
direction = META_MOTION_RIGHT;
else if (layout1.current_col > layout2.current_col)
direction = META_MOTION_LEFT;
}
if (layout1.current_row < layout2.current_row)
{
if (!direction)
direction = META_MOTION_DOWN;
else if (direction == META_MOTION_RIGHT)
direction = META_MOTION_DOWN_RIGHT;
else
direction = META_MOTION_DOWN_LEFT;
}
if (layout1.current_row > layout2.current_row)
{
if (!direction)
direction = META_MOTION_UP;
else if (direction == META_MOTION_RIGHT)
direction = META_MOTION_UP_RIGHT;
else
direction = META_MOTION_UP_LEFT;
}
meta_screen_free_workspace_layout (&layout1);
meta_screen_free_workspace_layout (&layout2);
meta_compositor_switch_workspace (comp, screen, old, workspace, direction);
/* This needs to be done after telling the compositor we are switching
* workspaces since focusing a window will cause it to be immediately
* shown and that would confuse the compositor if it didn't know we
* were in a workspace switch.
*/
if (focus_this)
{
meta_window_activate (focus_this, timestamp);
}
else if (move_window)
{
meta_window_raise (move_window);
}
else
{
meta_topic (META_DEBUG_FOCUS, "Focusing default window on new workspace\n");
meta_workspace_focus_default_window (workspace, NULL, timestamp);
}
/* Emit switched signal from screen.c */
meta_screen_workspace_switched (screen, current_space, new_space, direction);
}
void
meta_workspace_activate (MetaWorkspace *workspace,
guint32 timestamp)
{
meta_workspace_activate_with_focus (workspace, NULL, timestamp);
}
int
meta_workspace_index (MetaWorkspace *workspace)
{
int ret;
ret = g_list_index (workspace->screen->workspaces, workspace);
if (ret < 0)
meta_bug ("Workspace does not exist to index!\n");
return ret;
}
void
meta_workspace_update_window_hints (MetaWorkspace *workspace)
{
GList *l = workspace->windows;
while (l)
{
MetaWindow *win = l->data;
meta_window_set_current_workspace_hint (win);
l = l->next;
}
}
/**
* meta_workspace_list_windows:
* @workspace: a #MetaWorkspace
*
* Gets windows contained on the workspace, including workspace->windows
* and also sticky windows. Override-redirect windows are not included.
*
* Return value: (transfer container) (element-type MetaWindow): the list of windows.
*/
GList*
meta_workspace_list_windows (MetaWorkspace *workspace)
{
GSList *display_windows;
GSList *tmp;
GList *workspace_windows;
display_windows = meta_display_list_windows (workspace->screen->display,
META_LIST_DEFAULT);
workspace_windows = NULL;
tmp = display_windows;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
if (meta_window_located_on_workspace (window, workspace))
workspace_windows = g_list_prepend (workspace_windows,
window);
tmp = tmp->next;
}
g_slist_free (display_windows);
return workspace_windows;
}
void
meta_workspace_invalidate_work_area (MetaWorkspace *workspace)
{
GList *tmp;
GList *windows;
int i;
if (workspace->work_areas_invalid)
{
meta_topic (META_DEBUG_WORKAREA,
"Work area for workspace %d is already invalid\n",
meta_workspace_index (workspace));
return;
}
meta_topic (META_DEBUG_WORKAREA,
"Invalidating work area for workspace %d\n",
meta_workspace_index (workspace));
/* If we are in the middle of a resize or move operation, we
* might have cached pointers to the workspace's edges */
if (workspace == workspace->screen->active_workspace)
meta_display_cleanup_edges (workspace->screen->display);
g_free (workspace->work_area_monitor);
workspace->work_area_monitor = NULL;
workspace_free_all_struts (workspace);
for (i = 0; i < workspace->screen->n_monitor_infos; i++)
meta_rectangle_free_list_and_elements (workspace->monitor_region[i]);
g_free (workspace->monitor_region);
meta_rectangle_free_list_and_elements (workspace->screen_region);
meta_rectangle_free_list_and_elements (workspace->screen_edges);
meta_rectangle_free_list_and_elements (workspace->monitor_edges);
workspace->monitor_region = NULL;
workspace->screen_region = NULL;
workspace->screen_edges = NULL;
workspace->monitor_edges = NULL;
workspace->work_areas_invalid = TRUE;
/* redo the size/position constraints on all windows */
windows = meta_workspace_list_windows (workspace);
tmp = windows;
while (tmp != NULL)
{
MetaWindow *w = tmp->data;
meta_window_queue (w, META_QUEUE_MOVE_RESIZE);
tmp = tmp->next;
}
g_list_free (windows);
meta_screen_queue_workarea_recalc (workspace->screen);
}
static MetaStrut *
copy_strut(MetaStrut *original)
{
return g_memdup(original, sizeof(MetaStrut));
}
static GSList *
copy_strut_list(GSList *original)
{
GSList *result = NULL;
while (original)
{
result = g_slist_prepend (result, copy_strut (original->data));
original = original->next;
}
return g_slist_reverse (result);
}
static void
ensure_work_areas_validated (MetaWorkspace *workspace)
{
GList *windows;
GList *tmp;
MetaRectangle work_area;
int i; /* C89 absolutely sucks... */
if (!workspace->work_areas_invalid)
return;
g_assert (workspace->all_struts == NULL);
g_assert (workspace->monitor_region == NULL);
g_assert (workspace->screen_region == NULL);
g_assert (workspace->screen_edges == NULL);
g_assert (workspace->monitor_edges == NULL);
/* STEP 1: Get the list of struts */
workspace->all_struts = copy_strut_list (workspace->builtin_struts);
windows = meta_workspace_list_windows (workspace);
for (tmp = windows; tmp != NULL; tmp = tmp->next)
{
MetaWindow *win = tmp->data;
GSList *s_iter;
for (s_iter = win->struts; s_iter != NULL; s_iter = s_iter->next) {
workspace->all_struts = g_slist_prepend (workspace->all_struts,
copy_strut(s_iter->data));
}
}
g_list_free (windows);
/* STEP 2: Get the maximal/spanning rects for the onscreen and
* on-single-monitor regions
*/
g_assert (workspace->monitor_region == NULL);
g_assert (workspace->screen_region == NULL);
workspace->monitor_region = g_new (GList*,
workspace->screen->n_monitor_infos);
for (i = 0; i < workspace->screen->n_monitor_infos; i++)
{
workspace->monitor_region[i] =
meta_rectangle_get_minimal_spanning_set_for_region (
&workspace->screen->monitor_infos[i].rect,
workspace->all_struts);
}
workspace->screen_region =
meta_rectangle_get_minimal_spanning_set_for_region (
&workspace->screen->rect,
workspace->all_struts);
/* STEP 3: Get the work areas (region-to-maximize-to) for the screen and
* monitors.
*/
work_area = workspace->screen->rect; /* start with the screen */
if (workspace->screen_region == NULL)
work_area = meta_rect (0, 0, -1, -1);
else
meta_rectangle_clip_to_region (workspace->screen_region,
FIXED_DIRECTION_NONE,
&work_area);
/* Lots of paranoia checks, forcing work_area_screen to be sane */
#define MIN_SANE_AREA 100
if (work_area.width < MIN_SANE_AREA)
{
meta_warning ("struts occupy an unusually large percentage of the screen; "
"available remaining width = %d < %d",
work_area.width, MIN_SANE_AREA);
if (work_area.width < 1)
{
work_area.x = (workspace->screen->rect.width - MIN_SANE_AREA)/2;
work_area.width = MIN_SANE_AREA;
}
else
{
int amount = (MIN_SANE_AREA - work_area.width)/2;
work_area.x -= amount;
work_area.width += 2*amount;
}
}
if (work_area.height < MIN_SANE_AREA)
{
meta_warning ("struts occupy an unusually large percentage of the screen; "
"available remaining height = %d < %d",
work_area.height, MIN_SANE_AREA);
if (work_area.height < 1)
{
work_area.y = (workspace->screen->rect.height - MIN_SANE_AREA)/2;
work_area.height = MIN_SANE_AREA;
}
else
{
int amount = (MIN_SANE_AREA - work_area.height)/2;
work_area.y -= amount;
work_area.height += 2*amount;
}
}
workspace->work_area_screen = work_area;
meta_topic (META_DEBUG_WORKAREA,
"Computed work area for workspace %d: %d,%d %d x %d\n",
meta_workspace_index (workspace),
workspace->work_area_screen.x,
workspace->work_area_screen.y,
workspace->work_area_screen.width,
workspace->work_area_screen.height);
/* Now find the work areas for each monitor */
g_free (workspace->work_area_monitor);
workspace->work_area_monitor = g_new (MetaRectangle,
workspace->screen->n_monitor_infos);
for (i = 0; i < workspace->screen->n_monitor_infos; i++)
{
work_area = workspace->screen->monitor_infos[i].rect;
if (workspace->monitor_region[i] == NULL)
/* FIXME: constraints.c untested with this, but it might be nice for
* a screen reader or magnifier.
*/
work_area = meta_rect (work_area.x, work_area.y, -1, -1);
else
meta_rectangle_clip_to_region (workspace->monitor_region[i],
FIXED_DIRECTION_NONE,
&work_area);
workspace->work_area_monitor[i] = work_area;
meta_topic (META_DEBUG_WORKAREA,
"Computed work area for workspace %d "
"monitor %d: %d,%d %d x %d\n",
meta_workspace_index (workspace),
i,
workspace->work_area_monitor[i].x,
workspace->work_area_monitor[i].y,
workspace->work_area_monitor[i].width,
workspace->work_area_monitor[i].height);
}
/* STEP 4: Make sure the screen_region is nonempty (separate from step 2
* since it relies on step 3).
*/
if (workspace->screen_region == NULL)
{
MetaRectangle *nonempty_region;
nonempty_region = g_new (MetaRectangle, 1);
*nonempty_region = workspace->work_area_screen;
workspace->screen_region = g_list_prepend (NULL, nonempty_region);
}
/* STEP 5: Cache screen and monitor edges for edge resistance and snapping */
g_assert (workspace->screen_edges == NULL);
g_assert (workspace->monitor_edges == NULL);
workspace->screen_edges =
meta_rectangle_find_onscreen_edges (&workspace->screen->rect,
workspace->all_struts);
tmp = NULL;
for (i = 0; i < workspace->screen->n_monitor_infos; i++)
tmp = g_list_prepend (tmp, &workspace->screen->monitor_infos[i].rect);
workspace->monitor_edges =
meta_rectangle_find_nonintersected_monitor_edges (tmp,
workspace->all_struts);
g_list_free (tmp);
/* We're all done, YAAY! Record that everything has been validated. */
workspace->work_areas_invalid = FALSE;
{
/*
* Notify the compositor that the workspace geometry has changed.
*/
MetaScreen *screen = workspace->screen;
MetaDisplay *display = meta_screen_get_display (screen);
MetaCompositor *comp = meta_display_get_compositor (display);
if (comp)
meta_compositor_update_workspace_geometry (comp, workspace);
}
}
static gboolean
strut_lists_equal (GSList *l,
GSList *m)
{
for (; l && m; l = l->next, m = m->next)
{
MetaStrut *a = l->data;
MetaStrut *b = m->data;
if (a->side != b->side ||
!meta_rectangle_equal (&a->rect, &b->rect))
return FALSE;
}
return l == NULL && m == NULL;
}
/**
* meta_workspace_set_builtin_struts:
* @workspace: a #MetaWorkspace
* @struts: (element-type Meta.Strut) (transfer none): list of #MetaStrut
*
* Sets a list of struts that will be used in addition to the struts
* of the windows in the workspace when computing the work area of
* the workspace.
*/
void
meta_workspace_set_builtin_struts (MetaWorkspace *workspace,
GSList *struts)
{
/* Reordering doesn't actually matter, so we don't catch all
* no-impact changes, but this is just a (possibly unnecessary
* anyways) optimization */
if (strut_lists_equal (struts, workspace->builtin_struts))
return;
workspace_free_builtin_struts (workspace);
workspace->builtin_struts = copy_strut_list (struts);
meta_workspace_invalidate_work_area (workspace);
}
void
meta_workspace_get_work_area_for_monitor (MetaWorkspace *workspace,
int which_monitor,
MetaRectangle *area)
{
g_assert (which_monitor >= 0);
ensure_work_areas_validated (workspace);
g_assert (which_monitor < workspace->screen->n_monitor_infos);
*area = workspace->work_area_monitor[which_monitor];
}
void
meta_workspace_get_work_area_all_monitors (MetaWorkspace *workspace,
MetaRectangle *area)
{
ensure_work_areas_validated (workspace);
*area = workspace->work_area_screen;
}
GList*
meta_workspace_get_onscreen_region (MetaWorkspace *workspace)
{
ensure_work_areas_validated (workspace);
return workspace->screen_region;
}
GList*
meta_workspace_get_onmonitor_region (MetaWorkspace *workspace,
int which_monitor)
{
ensure_work_areas_validated (workspace);
return workspace->monitor_region[which_monitor];
}
#ifdef WITH_VERBOSE_MODE
static char *
meta_motion_direction_to_string (MetaMotionDirection direction)
{
switch (direction)
{
case META_MOTION_UP:
return "Up";
case META_MOTION_DOWN:
return "Down";
case META_MOTION_LEFT:
return "Left";
case META_MOTION_RIGHT:
return "Right";
case META_MOTION_UP_RIGHT:
return "Up-Right";
case META_MOTION_DOWN_RIGHT:
return "Down-Right";
case META_MOTION_UP_LEFT:
return "Up-Left";
case META_MOTION_DOWN_LEFT:
return "Down-Left";
}
return "Unknown";
}
#endif /* WITH_VERBOSE_MODE */
MetaWorkspace*
meta_workspace_get_neighbor (MetaWorkspace *workspace,
MetaMotionDirection direction)
{
MetaWorkspaceLayout layout;
int i, current_space, num_workspaces;
gboolean ltr;
current_space = meta_workspace_index (workspace);
num_workspaces = meta_screen_get_n_workspaces (workspace->screen);
meta_screen_calc_workspace_layout (workspace->screen, num_workspaces,
current_space, &layout);
meta_verbose ("Getting neighbor of %d in direction %s\n",
current_space, meta_motion_direction_to_string (direction));
ltr = meta_ui_get_direction() == META_UI_DIRECTION_LTR;
switch (direction)
{
case META_MOTION_LEFT:
layout.current_col -= ltr ? 1 : -1;
break;
case META_MOTION_RIGHT:
layout.current_col += ltr ? 1 : -1;
break;
case META_MOTION_UP:
layout.current_row -= 1;
break;
case META_MOTION_DOWN:
layout.current_row += 1;
break;
default:;
}
if (layout.current_col < 0)
layout.current_col = 0;
if (layout.current_col >= layout.cols)
layout.current_col = layout.cols - 1;
if (layout.current_row < 0)
layout.current_row = 0;
if (layout.current_row >= layout.rows)
layout.current_row = layout.rows - 1;
i = layout.grid[layout.current_row * layout.cols + layout.current_col];
if (i < 0)
i = current_space;
if (i >= num_workspaces)
meta_bug ("calc_workspace_layout left an invalid (too-high) workspace number %d in the grid\n",
i);
meta_verbose ("Neighbor workspace is %d at row %d col %d\n",
i, layout.current_row, layout.current_col);
meta_screen_free_workspace_layout (&layout);
return meta_screen_get_workspace_by_index (workspace->screen, i);
}
const char*
meta_workspace_get_name (MetaWorkspace *workspace)
{
return meta_prefs_get_workspace_name (meta_workspace_index (workspace));
}
void
meta_workspace_focus_default_window (MetaWorkspace *workspace,
MetaWindow *not_this_one,
guint32 timestamp)
{
if (timestamp == CurrentTime)
{
meta_warning ("CurrentTime used to choose focus window; "
"focus window may not be correct.\n");
}
if (meta_prefs_get_focus_mode () == G_DESKTOP_FOCUS_MODE_CLICK ||
!workspace->screen->display->mouse_mode)
focus_ancestor_or_top_window (workspace, not_this_one, timestamp);
else
{
MetaWindow * window;
window = meta_screen_get_mouse_window (workspace->screen, not_this_one);
if (window &&
window->type != META_WINDOW_DOCK &&
window->type != META_WINDOW_DESKTOP)
{
if (timestamp == CurrentTime)
{
/* We would like for this to never happen. However, if
* it does happen then we kludge since using CurrentTime
* can mean ugly race conditions--and we can avoid these
* by allowing EnterNotify events (which come with
* timestamps) to handle focus.
*/
meta_topic (META_DEBUG_FOCUS,
"Not focusing mouse window %s because EnterNotify events should handle that\n", window->desc);
}
else
{
meta_topic (META_DEBUG_FOCUS,
"Focusing mouse window %s\n", window->desc);
meta_window_focus (window, timestamp);
}
if (workspace->screen->display->autoraise_window != window &&
meta_prefs_get_auto_raise ())
{
meta_display_queue_autoraise_callback (workspace->screen->display,
window);
}
}
else if (meta_prefs_get_focus_mode () == G_DESKTOP_FOCUS_MODE_SLOPPY)
focus_ancestor_or_top_window (workspace, not_this_one, timestamp);
else if (meta_prefs_get_focus_mode () == G_DESKTOP_FOCUS_MODE_MOUSE)
{
meta_topic (META_DEBUG_FOCUS,
"Setting focus to no_focus_window, since no valid "
"window to focus found.\n");
meta_display_focus_the_no_focus_window (workspace->screen->display,
workspace->screen,
timestamp);
}
}
}
static gboolean
record_ancestor (MetaWindow *window,
void *data)
{
MetaWindow **result = data;
*result = window;
return FALSE; /* quit with the first ancestor we find */
}
/* Focus ancestor of not_this_one if there is one */
static void
focus_ancestor_or_top_window (MetaWorkspace *workspace,
MetaWindow *not_this_one,
guint32 timestamp)
{
MetaWindow *window = NULL;
if (not_this_one)
meta_topic (META_DEBUG_FOCUS,
"Focusing MRU window excluding %s\n", not_this_one->desc);
else
meta_topic (META_DEBUG_FOCUS,
"Focusing MRU window\n");
/* First, check to see if we need to focus an ancestor of a window */
if (not_this_one)
{
MetaWindow *ancestor;
ancestor = NULL;
meta_window_foreach_ancestor (not_this_one, record_ancestor, &ancestor);
if (ancestor != NULL &&
(ancestor->on_all_workspaces ||
ancestor->workspace == workspace) &&
meta_window_showing_on_its_workspace (ancestor))
{
meta_topic (META_DEBUG_FOCUS,
"Focusing %s, ancestor of %s\n",
ancestor->desc, not_this_one->desc);
meta_window_focus (ancestor, timestamp);
/* Also raise the window if in click-to-focus */
if (meta_prefs_get_focus_mode () == G_DESKTOP_FOCUS_MODE_CLICK)
meta_window_raise (ancestor);
return;
}
}
window = meta_stack_get_default_focus_window (workspace->screen->stack,
workspace,
NULL);
if (window)
{
meta_topic (META_DEBUG_FOCUS,
"Focusing workspace MRU window %s\n", window->desc);
meta_window_focus (window, timestamp);
/* Also raise the window if in click-to-focus */
if (meta_prefs_get_focus_mode () == G_DESKTOP_FOCUS_MODE_CLICK)
meta_window_raise (window);
}
else
{
meta_topic (META_DEBUG_FOCUS, "No MRU window to focus found; focusing no_focus_window.\n");
meta_display_focus_the_no_focus_window (workspace->screen->display,
workspace->screen,
timestamp);
}
}
/**
* meta_workspace_get_screen:
* @workspace: a #MetaWorkspace
*
* Gets the #MetaScreen that the workspace is part of.
*
* Return value: (transfer none): the #MetaScreen for the workspace
*/
MetaScreen *
meta_workspace_get_screen (MetaWorkspace *workspace)
{
return workspace->screen;
}
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