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mutter-performance-source/src/core/workspace.c
Jonas Ådahl 1fb0e8e9bb monitor-manager: Store logical monitors in a GList 
Instead of storing the logical monitors in an array and having users
either look up them in the array given an index or iterate using
indices, put it in a GList, and use GList iterators when iterating and
alternative API where array indices were previously used.

This allows for more liberty regarding the type of the logical monitor.

https://bugzilla.gnome.org/show_bug.cgi?id=777732
2017-01-25 16:28:52 +08:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* 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, see <http://www.gnu.org/licenses/>.
*/
/**
* SECTION:workspace
* @title:MetaWorkspace
* @short_description:Workspaces
*
* A workspace is a set of windows which all live on the same
* screen. (You may also see the name "desktop" around the place,
* which is the EWMH's name for the same thing.) Only one workspace
* of a screen may be active at once; all windows on all other workspaces
* are unmapped.
*/
#include <config.h>
#include "backends/meta-backend-private.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
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 {
PROP_0,
PROP_N_WINDOWS,
PROP_WORKSPACE_INDEX,
LAST_PROP,
};
static GParamSpec *obj_props[LAST_PROP];
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 */
G_OBJECT_CLASS (meta_workspace_parent_class)->finalize (object);
}
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;
case PROP_WORKSPACE_INDEX:
g_value_set_uint (value, meta_workspace_index (ws));
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);
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);
obj_props[PROP_N_WINDOWS] = g_param_spec_uint ("n-windows",
"N Windows",
"Number of windows",
0, G_MAXUINT, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_props[PROP_WORKSPACE_INDEX] = g_param_spec_uint ("workspace-index",
"Workspace index",
"The workspace's index",
0, G_MAXUINT, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, LAST_PROP, obj_props);
}
static void
meta_workspace_init (MetaWorkspace *workspace)
{
}
MetaWorkspace*
meta_workspace_new (MetaScreen *screen)
{
MetaWorkspace *workspace;
GSList *windows, *l;
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;
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;
/* make sure sticky windows are in our mru_list */
windows = meta_display_list_windows (screen->display, META_LIST_SORTED);
for (l = windows; l; l = l->next)
if (meta_window_located_on_workspace (l->data, workspace))
meta_workspace_add_window (workspace, l->data);
g_slist_free (windows);
return workspace;
}
/* Foreach function for workspace_free_struts() */
static void
free_this (gpointer candidate, gpointer dummy)
{
g_free (candidate);
}
/**
* workspace_free_all_struts:
* @workspace: The workspace.
*
* Frees the combined struts list of a 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;
}
/**
* workspace_free_builtin_struts:
* @workspace: The workspace.
*
* Frees the struts list set with meta_workspace_set_builtin_struts
*/
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;
}
/* Ensure that the workspace is empty by making sure that
* all of our windows are on-all-workspaces. */
static void
assert_workspace_empty (MetaWorkspace *workspace)
{
GList *l;
for (l = workspace->windows; l != NULL; l = l->next)
{
MetaWindow *window = l->data;
g_assert (window->on_all_workspaces);
}
}
void
meta_workspace_remove (MetaWorkspace *workspace)
{
g_return_if_fail (workspace != workspace->screen->active_workspace);
assert_workspace_empty (workspace);
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)
{
int i;
workspace_free_all_struts (workspace);
for (i = 0; i < workspace->n_monitor_regions; 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_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);
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);
}
g_signal_emit (workspace, signals[WINDOW_ADDED], 0, window);
g_object_notify_by_pspec (G_OBJECT (workspace), obj_props[PROP_N_WINDOWS]);
}
void
meta_workspace_remove_window (MetaWorkspace *workspace,
MetaWindow *window)
{
workspace->windows = g_list_remove (workspace->windows, window);
workspace->mru_list = g_list_remove (workspace->mru_list, window);
g_assert (g_list_find (workspace->mru_list, window) == NULL);
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);
}
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 *copy, *l;
g_return_if_fail (workspace != new_home);
/* can't modify list we're iterating over */
copy = g_list_copy (workspace->windows);
for (l = copy; l != NULL; l = l->next)
{
MetaWindow *window = l->data;
if (!window->on_all_workspaces)
meta_window_change_workspace (window, new_home);
}
g_list_free (copy);
assert_workspace_empty (workspace);
}
void
meta_workspace_queue_calc_showing (MetaWorkspace *workspace)
{
GList *l;
for (l = workspace->windows; l != NULL; l = l->next)
meta_window_queue (l->data, META_QUEUE_CALC_SHOWING);
}
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 (meta_grab_op_is_moving (workspace->screen->display->grab_op))
move_window = workspace->screen->display->grab_window;
if (move_window != NULL)
{
/* 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 (!meta_window_located_on_workspace (move_window, workspace))
meta_window_change_workspace (move_window, workspace);
}
meta_workspace_queue_calc_showing (old);
meta_workspace_queue_calc_showing (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_get_locale_direction () == META_LOCALE_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, 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_index_changed (MetaWorkspace *workspace)
{
GList *l;
for (l = workspace->windows; l != NULL; l = l->next)
{
MetaWindow *win = l->data;
meta_window_current_workspace_changed (win);
}
g_object_notify_by_pspec (G_OBJECT (workspace), obj_props[PROP_WORKSPACE_INDEX]);
}
/**
* 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, *l;
GList *workspace_windows;
display_windows = meta_display_list_windows (workspace->screen->display,
META_LIST_DEFAULT);
workspace_windows = NULL;
for (l = display_windows; l != NULL; l = l->next)
{
MetaWindow *window = l->data;
if (meta_window_located_on_workspace (window, workspace))
workspace_windows = g_list_prepend (workspace_windows,
window);
}
g_slist_free (display_windows);
return workspace_windows;
}
void
meta_workspace_invalidate_work_area (MetaWorkspace *workspace)
{
int i;
GList *windows, *l;
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->n_monitor_regions; 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);
for (l = windows; l != NULL; l = l->next)
{
MetaWindow *w = l->data;
meta_window_queue (w, META_QUEUE_MOVE_RESIZE);
}
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;
for (; original != NULL; original = original->next)
result = g_slist_prepend (result, copy_strut (original->data));
return g_slist_reverse (result);
}
static void
ensure_work_areas_validated (MetaWorkspace *workspace)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
GList *windows;
GList *tmp;
GList *logical_monitors, *l;
int i;
MetaRectangle work_area;
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);
logical_monitors =
meta_monitor_manager_get_logical_monitors (monitor_manager);
workspace->n_monitor_regions =
(int) meta_monitor_manager_get_num_logical_monitors (monitor_manager);
workspace->monitor_region = g_new (GList*, workspace->n_monitor_regions);
i = 0;
for (l = logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
workspace->monitor_region[i] =
meta_rectangle_get_minimal_spanning_set_for_region (
&logical_monitor->rect,
workspace->all_struts);
i++;
}
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->n_work_area_monitor =
meta_monitor_manager_get_num_logical_monitors (monitor_manager);
workspace->work_area_monitor = g_new (MetaRectangle,
workspace->n_work_area_monitor);
i = 0;
for (l = logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
work_area = logical_monitor->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);
i++;
}
/* 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 (l = logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
tmp = g_list_prepend (tmp, &logical_monitor->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;
}
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)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaScreen *screen = workspace->screen;
GSList *l;
for (l = struts; l; l = l->next)
{
MetaStrut *strut = l->data;
MetaLogicalMonitor *logical_monitor;
logical_monitor =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager,
&strut->rect);
switch (strut->side)
{
case META_SIDE_TOP:
if (meta_monitor_manager_get_logical_monitor_neighbor (monitor_manager,
logical_monitor,
META_SCREEN_UP))
continue;
strut->rect.height += strut->rect.y;
strut->rect.y = 0;
break;
case META_SIDE_BOTTOM:
if (meta_monitor_manager_get_logical_monitor_neighbor (monitor_manager,
logical_monitor,
META_SCREEN_DOWN))
continue;
strut->rect.height = screen->rect.height - strut->rect.y;
break;
case META_SIDE_LEFT:
if (meta_monitor_manager_get_logical_monitor_neighbor (monitor_manager,
logical_monitor,
META_SCREEN_LEFT))
continue;
strut->rect.width += strut->rect.x;
strut->rect.x = 0;
break;
case META_SIDE_RIGHT:
if (meta_monitor_manager_get_logical_monitor_neighbor (monitor_manager,
logical_monitor,
META_SCREEN_RIGHT))
continue;
strut->rect.width = screen->rect.width - strut->rect.x;
break;
}
}
/* 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_logical_monitor (MetaWorkspace *workspace,
MetaLogicalMonitor *logical_monitor,
MetaRectangle *area)
{
meta_workspace_get_work_area_for_monitor (workspace,
logical_monitor->number,
area);
}
/**
* meta_workspace_get_work_area_for_monitor:
* @workspace: a #MetaWorkspace
* @which_monitor: a monitor index
* @area: (out): location to store the work area
*
* Stores the work area for @which_monitor on @workspace
* in @area.
*/
void
meta_workspace_get_work_area_for_monitor (MetaWorkspace *workspace,
int which_monitor,
MetaRectangle *area)
{
#ifndef G_DISABLE_ASSERT
MetaBackend *backend = meta_get_backend();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
int n_logical_monitors =
meta_monitor_manager_get_num_logical_monitors (monitor_manager);
#endif
g_assert (which_monitor >= 0);
ensure_work_areas_validated (workspace);
g_assert (which_monitor < n_logical_monitors);
*area = workspace->work_area_monitor[which_monitor];
}
/**
* meta_workspace_get_work_area_all_monitors:
* @workspace: a #MetaWorkspace
* @area: (out): location to store the work area
*
* Stores the work area in @area.
*/
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 const 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 */
/**
* meta_workspace_get_neighbor:
* @workspace: a #MetaWorkspace
* @direction: a #MetaMotionDirection, relative to @workspace
*
* Calculate and retrive the workspace that is next to @workspace,
* according to @direction and the current workspace layout, as set
* by meta_screen_override_workspace_layout().
*
* Returns: (transfer none): the workspace next to @workspace, or
* @workspace itself if the neighbor would be outside the layout
*/
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_get_locale_direction () == META_LOCALE_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 &&
meta_window_located_on_workspace (ancestor, 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,
not_this_one);
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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