mutter/src/workspace.c

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/* Metacity Workspaces */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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>
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#include "workspace.h"
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#include "errors.h"
#include "prefs.h"
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#include <X11/Xatom.h>
#include <string.h>
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void meta_workspace_queue_calc_showing (MetaWorkspace *workspace);
static void set_active_space_hint (MetaScreen *screen);
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MetaWorkspace*
meta_workspace_new (MetaScreen *screen)
{
MetaWorkspace *workspace;
workspace = g_new (MetaWorkspace, 1);
workspace->screen = screen;
workspace->screen->workspaces =
g_list_append (workspace->screen->workspaces, workspace);
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workspace->windows = NULL;
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workspace->work_area.x = 0;
workspace->work_area.y = 0;
workspace->work_area.width = screen->width;
workspace->work_area.height = screen->height;
workspace->work_area_invalid = TRUE;
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return workspace;
}
void
meta_workspace_free (MetaWorkspace *workspace)
{
GList *tmp;
MetaScreen *screen;
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"
*/
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tmp = workspace->windows;
while (tmp != NULL)
{
GList *next;
MetaWindow *window = tmp->data;
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next = tmp->next;
/* pop front of list we're iterating over */
meta_workspace_remove_window (workspace, window);
g_assert (window->workspaces != NULL);
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tmp = next;
}
g_assert (workspace->windows == NULL);
screen = workspace->screen;
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workspace->screen->workspaces =
g_list_remove (workspace->screen->workspaces, workspace);
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g_free (workspace);
/* don't bother to reset names, pagers can just ignore
* extra ones
*/
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}
void
meta_workspace_add_window (MetaWorkspace *workspace,
MetaWindow *window)
{
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g_return_if_fail (!meta_workspace_contains_window (workspace, window));
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workspace->windows = g_list_prepend (workspace->windows, window);
window->workspaces = g_list_prepend (window->workspaces, workspace);
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meta_window_set_current_workspace_hint (window);
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meta_window_queue_calc_showing (window);
if (window->has_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_move_resize (window);
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}
void
meta_workspace_remove_window (MetaWorkspace *workspace,
MetaWindow *window)
{
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g_return_if_fail (meta_workspace_contains_window (workspace, window));
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workspace->windows = g_list_remove (workspace->windows, window);
window->workspaces = g_list_remove (window->workspaces, workspace);
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meta_window_set_current_workspace_hint (window);
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meta_window_queue_calc_showing (window);
if (window->has_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_move_resize (window);
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}
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_add_window (new_home, window);
meta_workspace_remove_window (workspace, window);
tmp = tmp->next;
}
g_list_free (copy);
g_assert (workspace->windows == NULL);
}
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gboolean
meta_workspace_contains_window (MetaWorkspace *workspace,
MetaWindow *window)
{
return g_list_find (workspace->windows, window) != NULL;
}
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void
meta_workspace_queue_calc_showing (MetaWorkspace *workspace)
{
GList *tmp;
tmp = workspace->windows;
while (tmp != NULL)
{
meta_window_queue_calc_showing (tmp->data);
tmp = tmp->next;
}
}
void
meta_workspace_activate (MetaWorkspace *workspace)
{
MetaWorkspace *old;
meta_verbose ("Activating workspace %d\n",
meta_workspace_index (workspace));
if (workspace->screen->active_workspace == workspace)
return;
old = workspace->screen->active_workspace;
workspace->screen->active_workspace = workspace;
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set_active_space_hint (workspace->screen);
if (old == NULL)
return;
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meta_workspace_queue_calc_showing (old);
meta_workspace_queue_calc_showing (workspace);
/* in mouse focus modes, this will probably get undone by an EnterNotify,
* but that's OK
*/
meta_topic (META_DEBUG_FOCUS, "Focusing top window on new workspace\n");
meta_screen_focus_top_window (workspace->screen, NULL);
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}
int
meta_workspace_index (MetaWorkspace *workspace)
{
GList *tmp;
int i;
i = 0;
tmp = workspace->screen->workspaces;
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while (tmp != NULL)
{
if (tmp->data == workspace)
return i;
++i;
tmp = tmp->next;
}
meta_bug ("Workspace does not exist to index!\n");
return -1; /* compiler warnings */
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}
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/* get windows contained on workspace, including workspace->windows
* and also sticky 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);
workspace_windows = NULL;
tmp = display_windows;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
if (meta_window_visible_on_workspace (window, workspace))
workspace_windows = g_list_prepend (workspace_windows,
window);
tmp = tmp->next;
}
g_slist_free (display_windows);
return workspace_windows;
}
static void
on unminimize, queue calc_showing on all transients 2002-05-05 Havoc Pennington <hp@pobox.com> * src/window.c (meta_window_unminimize): on unminimize, queue calc_showing on all transients (meta_window_activate): on activate, unminimize all a window's ancestors, not just the window itself. * src/workspace.c (set_work_area_hint): don't increment "tmp" by 16 unsigned long, increment by 4 * src/window.c (meta_window_free): if a window isn't minimized, restore its WM_STATE to NormalState instead of IconicState, since IconicState on initial window map means that the window should be minimized. * src/workspace.c (meta_workspace_invalidate_work_area): queue an idle to recompute the work area hint. (set_work_area_hint): we need 4*num_workspaces ints, not just num_workspaces. * src/screen.c (meta_screen_new): add work_area_idle field, handle it on screen shutdown * src/common.h (META_PRIORITY_PREFS_NOTIFY, META_PRIORITY_WORK_AREA_HINT): define some idle priorities * src/window.c (meta_window_calc_showing): hide windows if their parent window is minimized (meta_window_minimize): also queue_calc_showing on all transients of the window being minimized * src/place.c (constrain_placement): function to apply placement-time-only constraints, such as "not off the left of the screen" (meta_window_place): put dialogs down a bit over their parent, not right at the top. (meta_window_place): when centering a dialog, center it on the current xinerama screen, rather than the entire screen. * src/screen.c (meta_screen_get_current_xinerama): new function, but not implemented
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set_active_space_hint (MetaScreen *screen)
{
unsigned long data[1];
/* this is because we destroy the spaces in order,
* so we always end up setting a current desktop of
* 0 when closing a screen, so lose the current desktop
* on restart. By doing this we keep the current
* desktop on restart.
*/
if (screen->closing > 0)
return;
on unminimize, queue calc_showing on all transients 2002-05-05 Havoc Pennington <hp@pobox.com> * src/window.c (meta_window_unminimize): on unminimize, queue calc_showing on all transients (meta_window_activate): on activate, unminimize all a window's ancestors, not just the window itself. * src/workspace.c (set_work_area_hint): don't increment "tmp" by 16 unsigned long, increment by 4 * src/window.c (meta_window_free): if a window isn't minimized, restore its WM_STATE to NormalState instead of IconicState, since IconicState on initial window map means that the window should be minimized. * src/workspace.c (meta_workspace_invalidate_work_area): queue an idle to recompute the work area hint. (set_work_area_hint): we need 4*num_workspaces ints, not just num_workspaces. * src/screen.c (meta_screen_new): add work_area_idle field, handle it on screen shutdown * src/common.h (META_PRIORITY_PREFS_NOTIFY, META_PRIORITY_WORK_AREA_HINT): define some idle priorities * src/window.c (meta_window_calc_showing): hide windows if their parent window is minimized (meta_window_minimize): also queue_calc_showing on all transients of the window being minimized * src/place.c (constrain_placement): function to apply placement-time-only constraints, such as "not off the left of the screen" (meta_window_place): put dialogs down a bit over their parent, not right at the top. (meta_window_place): when centering a dialog, center it on the current xinerama screen, rather than the entire screen. * src/screen.c (meta_screen_get_current_xinerama): new function, but not implemented
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data[0] = meta_workspace_index (screen->active_workspace);
on unminimize, queue calc_showing on all transients 2002-05-05 Havoc Pennington <hp@pobox.com> * src/window.c (meta_window_unminimize): on unminimize, queue calc_showing on all transients (meta_window_activate): on activate, unminimize all a window's ancestors, not just the window itself. * src/workspace.c (set_work_area_hint): don't increment "tmp" by 16 unsigned long, increment by 4 * src/window.c (meta_window_free): if a window isn't minimized, restore its WM_STATE to NormalState instead of IconicState, since IconicState on initial window map means that the window should be minimized. * src/workspace.c (meta_workspace_invalidate_work_area): queue an idle to recompute the work area hint. (set_work_area_hint): we need 4*num_workspaces ints, not just num_workspaces. * src/screen.c (meta_screen_new): add work_area_idle field, handle it on screen shutdown * src/common.h (META_PRIORITY_PREFS_NOTIFY, META_PRIORITY_WORK_AREA_HINT): define some idle priorities * src/window.c (meta_window_calc_showing): hide windows if their parent window is minimized (meta_window_minimize): also queue_calc_showing on all transients of the window being minimized * src/place.c (constrain_placement): function to apply placement-time-only constraints, such as "not off the left of the screen" (meta_window_place): put dialogs down a bit over their parent, not right at the top. (meta_window_place): when centering a dialog, center it on the current xinerama screen, rather than the entire screen. * src/screen.c (meta_screen_get_current_xinerama): new function, but not implemented
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meta_verbose ("Setting _NET_CURRENT_DESKTOP to %ld\n", data[0]);
meta_error_trap_push (screen->display);
XChangeProperty (screen->display->xdisplay, screen->xroot,
screen->display->atom_net_current_desktop,
XA_CARDINAL,
32, PropModeReplace, (guchar*) data, 1);
meta_error_trap_pop (screen->display, FALSE);
on unminimize, queue calc_showing on all transients 2002-05-05 Havoc Pennington <hp@pobox.com> * src/window.c (meta_window_unminimize): on unminimize, queue calc_showing on all transients (meta_window_activate): on activate, unminimize all a window's ancestors, not just the window itself. * src/workspace.c (set_work_area_hint): don't increment "tmp" by 16 unsigned long, increment by 4 * src/window.c (meta_window_free): if a window isn't minimized, restore its WM_STATE to NormalState instead of IconicState, since IconicState on initial window map means that the window should be minimized. * src/workspace.c (meta_workspace_invalidate_work_area): queue an idle to recompute the work area hint. (set_work_area_hint): we need 4*num_workspaces ints, not just num_workspaces. * src/screen.c (meta_screen_new): add work_area_idle field, handle it on screen shutdown * src/common.h (META_PRIORITY_PREFS_NOTIFY, META_PRIORITY_WORK_AREA_HINT): define some idle priorities * src/window.c (meta_window_calc_showing): hide windows if their parent window is minimized (meta_window_minimize): also queue_calc_showing on all transients of the window being minimized * src/place.c (constrain_placement): function to apply placement-time-only constraints, such as "not off the left of the screen" (meta_window_place): put dialogs down a bit over their parent, not right at the top. (meta_window_place): when centering a dialog, center it on the current xinerama screen, rather than the entire screen. * src/screen.c (meta_screen_get_current_xinerama): new function, but not implemented
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}
void
meta_workspace_invalidate_work_area (MetaWorkspace *workspace)
{
GList *tmp;
GList *windows;
if (workspace->work_area_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));
workspace->work_area_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_move_resize (w);
tmp = tmp->next;
}
g_list_free (windows);
on unminimize, queue calc_showing on all transients 2002-05-05 Havoc Pennington <hp@pobox.com> * src/window.c (meta_window_unminimize): on unminimize, queue calc_showing on all transients (meta_window_activate): on activate, unminimize all a window's ancestors, not just the window itself. * src/workspace.c (set_work_area_hint): don't increment "tmp" by 16 unsigned long, increment by 4 * src/window.c (meta_window_free): if a window isn't minimized, restore its WM_STATE to NormalState instead of IconicState, since IconicState on initial window map means that the window should be minimized. * src/workspace.c (meta_workspace_invalidate_work_area): queue an idle to recompute the work area hint. (set_work_area_hint): we need 4*num_workspaces ints, not just num_workspaces. * src/screen.c (meta_screen_new): add work_area_idle field, handle it on screen shutdown * src/common.h (META_PRIORITY_PREFS_NOTIFY, META_PRIORITY_WORK_AREA_HINT): define some idle priorities * src/window.c (meta_window_calc_showing): hide windows if their parent window is minimized (meta_window_minimize): also queue_calc_showing on all transients of the window being minimized * src/place.c (constrain_placement): function to apply placement-time-only constraints, such as "not off the left of the screen" (meta_window_place): put dialogs down a bit over their parent, not right at the top. (meta_window_place): when centering a dialog, center it on the current xinerama screen, rather than the entire screen. * src/screen.c (meta_screen_get_current_xinerama): new function, but not implemented
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meta_screen_queue_workarea_recalc (workspace->screen);
}
void
meta_workspace_get_work_area (MetaWorkspace *workspace,
MetaRectangle *area)
{
if (workspace->work_area_invalid)
{
int left_strut = 0;
int right_strut = 0;
int top_strut = 0;
int bottom_strut = 0;
GList *tmp;
GList *windows;
windows = meta_workspace_list_windows (workspace);
tmp = windows;
while (tmp != NULL)
{
MetaWindow *w = tmp->data;
if (w->has_struts)
{
meta_topic (META_DEBUG_WORKAREA,
"Merging win %s with %d %d %d %d with %d %d %d %d\n",
w->desc,
w->left_strut, w->right_strut, w->top_strut, w->bottom_strut,
left_strut, right_strut, top_strut, bottom_strut);
left_strut = MAX (left_strut, w->left_strut);
right_strut = MAX (right_strut, w->right_strut);
top_strut = MAX (top_strut, w->top_strut);
bottom_strut = MAX (bottom_strut, w->bottom_strut);
}
tmp = tmp->next;
}
g_list_free (windows);
/* Some paranoid robustness */
#define MIN_SANE_AREA 100
if ((left_strut + right_strut) > (workspace->screen->width - MIN_SANE_AREA))
{
meta_topic (META_DEBUG_WORKAREA,
"Making left/right struts %d %d sane\n",
left_strut, right_strut);
left_strut = (workspace->screen->width - MIN_SANE_AREA) / 2;
right_strut = left_strut;
}
if ((top_strut + bottom_strut) > (workspace->screen->height - MIN_SANE_AREA))
{
meta_topic (META_DEBUG_WORKAREA,
"Making top/bottom struts %d %d sane\n",
top_strut, bottom_strut);
top_strut = (workspace->screen->height - MIN_SANE_AREA) / 2;
bottom_strut = top_strut;
}
workspace->work_area.x = left_strut;
workspace->work_area.y = top_strut;
workspace->work_area.width = workspace->screen->width - left_strut - right_strut;
workspace->work_area.height = workspace->screen->height - top_strut - bottom_strut;
workspace->work_area_invalid = FALSE;
meta_topic (META_DEBUG_WORKAREA,
"Computed work area for workspace %d: %d,%d %d x %d\n",
meta_workspace_index (workspace),
workspace->work_area.x,
workspace->work_area.y,
workspace->work_area.width,
workspace->work_area.height);
}
*area = workspace->work_area;
}
#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";
}
return "Unknown";
}
#endif /* WITH_VERBOSE_MODE */
#ifdef WITH_VERBOSE_MODE
static char *
meta_screen_corner_to_string (MetaScreenCorner corner)
{
switch (corner)
{
case META_SCREEN_TOPLEFT:
return "TopLeft";
case META_SCREEN_TOPRIGHT:
return "TopRight";
case META_SCREEN_BOTTOMLEFT:
return "BottomLeft";
case META_SCREEN_BOTTOMRIGHT:
return "BottomRight";
}
return "Unknown";
}
#endif /* WITH_VERBOSE_MODE */
MetaWorkspace*
meta_workspace_get_neighbor (MetaWorkspace *workspace,
MetaMotionDirection direction)
{
int i, num_workspaces, grid_area;
int rows, cols;
int new_workspace_idx;
int up_diff, down_diff, left_diff, right_diff;
int current_row, current_col;
i = meta_workspace_index (workspace);
num_workspaces = meta_screen_get_n_workspaces (workspace->screen);
meta_screen_calc_workspace_layout (workspace->screen, num_workspaces,
&rows, &cols);
g_assert (rows != 0 && cols != 0);
grid_area = rows * cols;
meta_verbose ("Getting neighbor rows = %d cols = %d current = %d "
"num_spaces = %d vertical = %s direction = %s corner = %s\n",
rows, cols, i, num_workspaces,
workspace->screen->vertical_workspaces ? "(true)" : "(false)",
meta_motion_direction_to_string (direction),
meta_screen_corner_to_string (workspace->screen->starting_corner));
/* ok, we want to setup the distances in the workspace array to go
* in each direction. Remember, there are many ways that a workspace
* array can be setup.
* see http://www.freedesktop.org/standards/wm-spec/1.2/html/x109.html
* and look at the _NET_DESKTOP_LAYOUT section for details.
* For instance:
*/
/* starting_corner = META_SCREEN_TOPLEFT
* vertical_workspaces = 0 vertical_workspaces=1
* 1234 1357
* 5678 2468
*
* starting_corner = META_SCREEN_TOPRIGHT
* vertical_workspaces = 0 vertical_workspaces=1
* 4321 7531
* 8765 8642
*
* starting_corner = META_SCREEN_BOTTOMLEFT
* vertical_workspaces = 0 vertical_workspaces=1
* 5678 2468
* 1234 1357
*
* starting_corner = META_SCREEN_BOTTOMRIGHT
* vertical_workspaces = 0 vertical_workspaces=1
* 8765 8642
* 4321 7531
*
*/
if (workspace->screen->vertical_workspaces)
{
up_diff = -1;
down_diff = 1;
left_diff = -1 * rows;
right_diff = rows;
current_col = ((i - 1) / rows) + 1;
current_row = ((i - 1) % rows) + 1;
}
else
{
up_diff = -1 * cols;
down_diff = cols;
left_diff = -1;
right_diff = 1;
current_col = (i % cols) + 1;
current_row = ((i - 1) / cols) + 1;
}
switch (workspace->screen->starting_corner)
{
default:
case META_SCREEN_TOPLEFT:
/* this was the default case setup in the if() above */
break;
case META_SCREEN_TOPRIGHT:
/* ok, we need to inverse the left/right values */
left_diff = -1 * left_diff;
right_diff = -1 * right_diff;
/* also, current column needs to be mirrored */
current_col = rows - ((current_col-1)%rows) ;
break;
case META_SCREEN_BOTTOMLEFT:
/* ok, we need to inverse the up/down values */
up_diff = -1 * up_diff;
down_diff = -1 * up_diff;
/* also, current row needs to be mirrored */
current_row = cols - ((current_row-1)%cols);
break;
case META_SCREEN_BOTTOMRIGHT:
/* in this case, we need to inverse everything */
up_diff = -1 * up_diff;
down_diff = -1 * up_diff;
left_diff = -1 * left_diff;
right_diff = -1 * right_diff;
/* also, current column and row need to be reversed */
current_col = rows - ((current_col-1)%rows);
current_row = cols - ((current_row-1)%cols);
break;
}
meta_verbose ("Workspace deltas: up = %d down = %d left = %d right = %d. "
"Current col = %d row = %d\n", up_diff, down_diff, left_diff,
right_diff, current_col, current_row);
/* calculate what we think the next spot should be */
new_workspace_idx = i;
switch (direction)
{
case META_MOTION_LEFT:
if (current_col >= 1)
new_workspace_idx = i + left_diff;
break;
case META_MOTION_RIGHT:
if (current_col <= cols)
new_workspace_idx = i + right_diff;
break;
case META_MOTION_UP:
if (current_row >= 1)
new_workspace_idx = i + up_diff;
break;
case META_MOTION_DOWN:
if (current_row <= rows)
new_workspace_idx = i + down_diff;
break;
default:
new_workspace_idx = 0;
break;
}
/* and now make sure we don't over/under flow */
if ((new_workspace_idx >= 0) && (new_workspace_idx < num_workspaces))
i = new_workspace_idx;
meta_verbose ("Neighbor workspace is %d\n", i);
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));
}