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Implement assignments of workspaces to screens, big cleanup of workspace code

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Please test this! Plug in screens, unplug them, use your video projector,
change resolutions, etc.

To use the assignments, use the following syntax:
workspace <number> [screen <screen>] [name]

Where screen can be one of:
<number> (It is not provided that these numbers stay constant, so use with care)
<x>x<y> (Coordinates where the screen starts, so 1280 will be fine to match the
	 screen right of the main screen if your main screen is 1280 pixels
	 width. However, 1281 will not match)
<x>
x<y>

Some examples follow:

 workspace 1 screen 0
 workspace 1 screen 1
 workspace 1 screen 1280x0
 workspace 2 screen 1280
 workspace 3 screen x0
 workspace 3 screen 1 www
 workspace 4 screen 0 mail
This commit is contained in:
Michael Stapelberg
2009-08-08 19:51:51 +02:00
parent 6192975a04
commit 47a798ac4a
14 changed files with 469 additions and 257 deletions
Download Patch File Download Diff File Expand all files Collapse all files

294
src/workspace.c
View File

@ -12,6 +12,8 @@
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <err.h>
#include "util.h"
@ -19,6 +21,11 @@
#include "i3.h"
#include "config.h"
#include "xcb.h"
#include "table.h"
#include "xinerama.h"
#include "layout.h"
#include "workspace.h"
#include "client.h"
/*
* Sets the name (or just its number) for the given workspace. This has to
@ -57,3 +64,290 @@ void workspace_set_name(Workspace *ws, const char *name) {
bool workspace_is_visible(Workspace *ws) {
return (ws->screen->current_workspace == ws->num);
}
/*
* Switches to the given workspace
*
*/
void workspace_show(xcb_connection_t *conn, int workspace) {
bool need_warp = false;
xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
/* t_ws (to workspace) is just a convenience pointer to the workspace we’re switching to */
Workspace *t_ws = &(workspaces[workspace-1]);
LOG("show_workspace(%d)\n", workspace);
/* Store current_row/current_col */
c_ws->current_row = current_row;
c_ws->current_col = current_col;
/* Check if the workspace has not been used yet */
workspace_initialize(t_ws, c_ws->screen);
if (c_ws->screen != t_ws->screen) {
/* We need to switch to the other screen first */
LOG("moving over to other screen.\n");
/* Store the old client */
Client *old_client = CUR_CELL->currently_focused;
c_ws = &(workspaces[t_ws->screen->current_workspace]);
current_col = c_ws->current_col;
current_row = c_ws->current_row;
if (CUR_CELL->currently_focused != NULL)
need_warp = true;
else {
Rect *dims = &(c_ws->screen->rect);
xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0,
dims->x + (dims->width / 2), dims->y + (dims->height / 2));
}
/* Re-decorate the old client, it’s not focused anymore */
if ((old_client != NULL) && !old_client->dock)
redecorate_window(conn, old_client);
else xcb_flush(conn);
}
/* Check if we need to change something or if we’re already there */
if (c_ws->screen->current_workspace == (workspace-1)) {
Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
if (last_focused != SLIST_END(&(c_ws->focus_stack))) {
set_focus(conn, last_focused, true);
if (need_warp) {
client_warp_pointer_into(conn, last_focused);
xcb_flush(conn);
}
}
return;
}
t_ws->screen->current_workspace = workspace-1;
Workspace *old_workspace = c_ws;
c_ws = &workspaces[workspace-1];
/* Unmap all clients of the old workspace */
workspace_unmap_clients(conn, old_workspace);
current_row = c_ws->current_row;
current_col = c_ws->current_col;
LOG("new current row = %d, current col = %d\n", current_row, current_col);
workspace_map_clients(conn, c_ws);
/* Restore focus on the new workspace */
Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
if (last_focused != SLIST_END(&(c_ws->focus_stack))) {
set_focus(conn, last_focused, true);
if (need_warp) {
client_warp_pointer_into(conn, last_focused);
xcb_flush(conn);
}
} else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
render_layout(conn);
}
/*
* Parses the preferred_screen property of a workspace. You can either specify
* the screen number (it is not given that the screen numbering always stays
* the same) or the screen coordinates (exact coordinates, e.g. 1280 will match
* the screen starting at x=1280, but 1281 will not). For coordinates, you can
* either specify an x coordinate ("1280") or an y coordinate ("x800") or both
* ("1280x800").
*
*/
static i3Screen *get_screen_from_preference(struct screens_head *slist, char *preference) {
i3Screen *screen;
char *rest;
int preferred_screen = strtol(preference, &rest, 10);
LOG("Getting screen for preference \"%s\" (%d)\n", preference, preferred_screen);
if ((rest == preference) || (preferred_screen >= num_screens)) {
int x = INT_MAX, y = INT_MAX;
if (strchr(preference, 'x') != NULL) {
/* Check if only the y coordinate was specified */
if (*preference == 'x')
y = atoi(preference+1);
else {
x = atoi(preference);
y = atoi(strchr(preference, 'x') + 1);
}
} else {
x = atoi(preference);
}
LOG("Looking for screen at %d x %d\n", x, y);
TAILQ_FOREACH(screen, slist, screens)
if ((x == INT_MAX || screen->rect.x == x) &&
(y == INT_MAX || screen->rect.y == y)) {
LOG("found %p\n", screen);
return screen;
}
LOG("none found\n");
return NULL;
} else {
int c = 0;
TAILQ_FOREACH(screen, slist, screens)
if (c++ == preferred_screen)
return screen;
}
return NULL;
}
/*
* Initializes the given workspace if it is not already initialized. The given
* screen is to be understood as a fallback, if the workspace itself either
* was not assigned to a particular screen or cannot be placed there because
* the screen is not attached at the moment.
*
*/
void workspace_initialize(Workspace *ws, i3Screen *screen) {
if (ws->screen != NULL) {
LOG("Workspace already initialized\n");
return;
}
/* If this workspace has no preferred screen or if the screen it wants
* to be on is not available at the moment, we initialize it with
* the screen which was given */
if (ws->preferred_screen == NULL ||
(ws->screen = get_screen_from_preference(virtual_screens, ws->preferred_screen)) == NULL)
ws->screen = screen;
else { LOG("yay, found assignment\n"); }
/* Copy the dimensions from the virtual screen */
memcpy(&(ws->rect), &(ws->screen->rect), sizeof(Rect));
}
/*
* Gets the first unused workspace for the given screen, taking into account
* the preferred_screen setting of every workspace (workspace assignments).
*
*/
Workspace *get_first_workspace_for_screen(struct screens_head *slist, i3Screen *screen) {
Workspace *result = NULL;
for (int c = 0; c < 10; c++) {
Workspace *ws = &(workspaces[c]);
if (ws->preferred_screen == NULL ||
!screens_are_equal(get_screen_from_preference(slist, ws->preferred_screen), screen))
continue;
result = ws;
break;
}
if (result == NULL) {
/* No assignment found, returning first unused workspace */
for (int c = 0; c < 10; c++) {
if (workspaces[c].screen != NULL)
continue;
result = &(workspaces[c]);
break;
}
}
if (result != NULL) {
workspace_initialize(result, screen);
return result;
}
LOG("WARNING: No free workspace found to assign!\n");
return NULL;
}
/*
* Maps all clients (and stack windows) of the given workspace.
*
*/
void workspace_map_clients(xcb_connection_t *conn, Workspace *ws) {
Client *client;
ignore_enter_notify_forall(conn, ws, true);
/* Map all clients on the new workspace */
FOR_TABLE(ws)
CIRCLEQ_FOREACH(client, &(ws->table[cols][rows]->clients), clients)
xcb_map_window(conn, client->frame);
/* Map all floating clients */
if (!ws->floating_hidden)
TAILQ_FOREACH(client, &(ws->floating_clients), floating_clients)
xcb_map_window(conn, client->frame);
/* Map all stack windows, if any */
struct Stack_Window *stack_win;
SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
if (stack_win->container->workspace == ws)
xcb_map_window(conn, stack_win->window);
ignore_enter_notify_forall(conn, ws, false);
}
/*
* Unmaps all clients (and stack windows) of the given workspace.
*
* This needs to be called separately when temporarily rendering
* a workspace which is not the active workspace to force
* reconfiguration of all clients, like in src/xinerama.c when
* re-assigning a workspace to another screen.
*
*/
void workspace_unmap_clients(xcb_connection_t *conn, Workspace *u_ws) {
Client *client;
struct Stack_Window *stack_win;
/* Ignore notify events because they would cause focus to be changed */
ignore_enter_notify_forall(conn, u_ws, true);
/* Unmap all clients of the given workspace */
int unmapped_clients = 0;
FOR_TABLE(u_ws)
CIRCLEQ_FOREACH(client, &(u_ws->table[cols][rows]->clients), clients) {
LOG("unmapping normal client %p / %p / %p\n", client, client->frame, client->child);
xcb_unmap_window(conn, client->frame);
unmapped_clients++;
}
/* To find floating clients, we traverse the focus stack */
SLIST_FOREACH(client, &(u_ws->focus_stack), focus_clients) {
if (!client_is_floating(client))
continue;
LOG("unmapping floating client %p / %p / %p\n", client, client->frame, client->child);
xcb_unmap_window(conn, client->frame);
unmapped_clients++;
}
/* If we did not unmap any clients, the workspace is empty and we can destroy it, at least
* if it is not the current workspace. */
if (unmapped_clients == 0 && u_ws != c_ws) {
/* Re-assign the workspace of all dock clients which use this workspace */
Client *dock;
LOG("workspace %p is empty\n", u_ws);
SLIST_FOREACH(dock, &(u_ws->screen->dock_clients), dock_clients) {
if (dock->workspace != u_ws)
continue;
LOG("Re-assigning dock client to c_ws (%p)\n", c_ws);
dock->workspace = c_ws;
}
u_ws->screen = NULL;
}
/* Unmap the stack windows on the given workspace, if any */
SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
if (stack_win->container->workspace == u_ws)
xcb_unmap_window(conn, stack_win->window);
ignore_enter_notify_forall(conn, u_ws, false);
}