479 lines
16 KiB
C
479 lines
16 KiB
C
/*
|
||
* vim:ts=8:expandtab
|
||
*
|
||
* i3 - an improved dynamic tiling window manager
|
||
*
|
||
* © 2009-2010 Michael Stapelberg and contributors
|
||
*
|
||
* See file LICENSE for license information.
|
||
*
|
||
* workspace.c: Functions for modifying workspaces
|
||
*
|
||
*/
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#include <limits.h>
|
||
#include <err.h>
|
||
|
||
#include "util.h"
|
||
#include "data.h"
|
||
#include "i3.h"
|
||
#include "config.h"
|
||
#include "xcb.h"
|
||
#include "table.h"
|
||
#include "randr.h"
|
||
#include "layout.h"
|
||
#include "workspace.h"
|
||
#include "client.h"
|
||
#include "log.h"
|
||
#include "ewmh.h"
|
||
#include "ipc.h"
|
||
|
||
/*
|
||
* Returns a pointer to the workspace with the given number (starting at 0),
|
||
* creating the workspace if necessary (by allocating the necessary amount of
|
||
* memory and initializing the data structures correctly).
|
||
*
|
||
*/
|
||
Workspace *workspace_get(int number) {
|
||
Workspace *ws = NULL;
|
||
TAILQ_FOREACH(ws, workspaces, workspaces)
|
||
if (ws->num == number)
|
||
return ws;
|
||
|
||
/* If we are still there, we could not find the requested workspace. */
|
||
int last_ws = TAILQ_LAST(workspaces, workspaces_head)->num;
|
||
|
||
DLOG("We need to initialize that one, last ws = %d\n", last_ws);
|
||
|
||
for (int c = last_ws; c < number; c++) {
|
||
DLOG("Creating new ws\n");
|
||
|
||
ws = scalloc(sizeof(Workspace));
|
||
ws->num = c+1;
|
||
TAILQ_INIT(&(ws->floating_clients));
|
||
expand_table_cols(ws);
|
||
expand_table_rows(ws);
|
||
workspace_set_name(ws, NULL);
|
||
|
||
TAILQ_INSERT_TAIL(workspaces, ws, workspaces);
|
||
|
||
ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"create\"}");
|
||
}
|
||
DLOG("done\n");
|
||
|
||
ewmh_update_workarea();
|
||
|
||
return ws;
|
||
}
|
||
|
||
/*
|
||
* Sets the name (or just its number) for the given workspace. This has to
|
||
* be called for every workspace as the rendering function
|
||
* (render_internal_bar) relies on workspace->name and workspace->name_len
|
||
* being ready-to-use.
|
||
*
|
||
*/
|
||
void workspace_set_name(Workspace *ws, const char *name) {
|
||
char *label;
|
||
int ret;
|
||
|
||
if (name != NULL)
|
||
ret = asprintf(&label, "%d: %s", ws->num + 1, name);
|
||
else ret = asprintf(&label, "%d", ws->num + 1);
|
||
|
||
if (ret == -1)
|
||
errx(1, "asprintf() failed");
|
||
|
||
FREE(ws->name);
|
||
FREE(ws->utf8_name);
|
||
|
||
ws->name = convert_utf8_to_ucs2(label, &(ws->name_len));
|
||
if (config.font != NULL)
|
||
ws->text_width = predict_text_width(global_conn, config.font, ws->name, ws->name_len);
|
||
else ws->text_width = 0;
|
||
ws->utf8_name = label;
|
||
}
|
||
|
||
/*
|
||
* Returns true if the workspace is currently visible. Especially important for
|
||
* multi-monitor environments, as they can have multiple currenlty active
|
||
* workspaces.
|
||
*
|
||
*/
|
||
bool workspace_is_visible(Workspace *ws) {
|
||
return (ws->output != NULL && ws->output->current_workspace == ws);
|
||
}
|
||
|
||
/*
|
||
* Switches to the given workspace
|
||
*
|
||
*/
|
||
void workspace_show(xcb_connection_t *conn, int workspace) {
|
||
bool need_warp = false;
|
||
/* t_ws (to workspace) is just a convenience pointer to the workspace we’re switching to */
|
||
Workspace *t_ws = workspace_get(workspace-1);
|
||
|
||
DLOG("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->output, false);
|
||
|
||
if (c_ws->output != t_ws->output) {
|
||
/* We need to switch to the other output first */
|
||
DLOG("moving over to other output.\n");
|
||
|
||
/* Store the old client */
|
||
Client *old_client = CUR_CELL->currently_focused;
|
||
|
||
c_ws = t_ws->output->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->output->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);
|
||
|
||
/* We need to check if a global fullscreen-client is blocking
|
||
* the t_ws and if necessary switch that to local fullscreen */
|
||
Client* client = c_ws->fullscreen_client;
|
||
if (client != NULL && client->workspace != c_ws) {
|
||
if (c_ws->fullscreen_client->workspace != c_ws)
|
||
c_ws->fullscreen_client = NULL;
|
||
client_enter_fullscreen(conn, client, false);
|
||
}
|
||
}
|
||
|
||
/* Check if we need to change something or if we’re already there */
|
||
if (c_ws->output->current_workspace->num == (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);
|
||
}
|
||
|
||
ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
|
||
|
||
return;
|
||
}
|
||
|
||
Workspace *old_workspace = c_ws;
|
||
c_ws = t_ws->output->current_workspace = workspace_get(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;
|
||
DLOG("new current row = %d, current col = %d\n", current_row, current_col);
|
||
|
||
ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
|
||
|
||
workspace_map_clients(conn, c_ws);
|
||
|
||
/* POTENTIAL TO IMPROVE HERE: due to the call to _map_clients first and
|
||
* render_layout afterwards, there is a short flickering on the source
|
||
* workspace (assign ws 3 to output 0, ws 4 to output 1, create single
|
||
* client on ws 4, move it to ws 3, switch to ws 3, you’ll see the
|
||
* flickering). */
|
||
|
||
/* 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);
|
||
else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
|
||
|
||
render_layout(conn);
|
||
|
||
/* We can warp the pointer only after the window has been
|
||
* reconfigured in render_layout, otherwise the pointer will
|
||
* be warped to the old position, which will not work when we
|
||
* moved it to another output. */
|
||
if (last_focused != SLIST_END(&(c_ws->focus_stack)) && need_warp) {
|
||
client_warp_pointer_into(conn, last_focused);
|
||
xcb_flush(conn);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Assigns the given workspace to the given output by correctly updating its
|
||
* state and reconfiguring all the clients on this workspace.
|
||
*
|
||
* This is called when initializing a output and when re-assigning it to a
|
||
* different output which just got available (if you configured it to be on
|
||
* output 1 and you just plugged in output 1).
|
||
*
|
||
*/
|
||
void workspace_assign_to(Workspace *ws, Output *output, bool hide_it) {
|
||
Client *client;
|
||
bool empty = true;
|
||
bool visible = workspace_is_visible(ws);
|
||
|
||
ws->output = output;
|
||
|
||
/* Copy the dimensions from the virtual output */
|
||
memcpy(&(ws->rect), &(ws->output->rect), sizeof(Rect));
|
||
|
||
ewmh_update_workarea();
|
||
|
||
/* Force reconfiguration for each client on that workspace */
|
||
SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) {
|
||
client->force_reconfigure = true;
|
||
empty = false;
|
||
}
|
||
|
||
if (empty)
|
||
return;
|
||
|
||
/* Render the workspace to reconfigure the clients. However, they will be visible now, so… */
|
||
render_workspace(global_conn, output, ws);
|
||
|
||
/* …unless we want to see them at the moment, we should hide that workspace */
|
||
if (visible && !hide_it)
|
||
return;
|
||
|
||
/* however, if this is the current workspace, we only need to adjust
|
||
* the output’s current_workspace pointer (and must not unmap the
|
||
* windows) */
|
||
if (c_ws == ws) {
|
||
DLOG("Need to adjust output->current_workspace...\n");
|
||
output->current_workspace = c_ws;
|
||
ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
|
||
return;
|
||
}
|
||
|
||
workspace_unmap_clients(global_conn, ws);
|
||
}
|
||
|
||
/*
|
||
* 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, Output *output, bool recheck) {
|
||
Output *old_output;
|
||
|
||
if (ws->output != NULL && !recheck) {
|
||
DLOG("Workspace already initialized\n");
|
||
return;
|
||
}
|
||
|
||
old_output = ws->output;
|
||
|
||
/* If this workspace has no preferred output or if the output it wants
|
||
* to be on is not available at the moment, we initialize it with
|
||
* the output which was given */
|
||
if (ws->preferred_output == NULL ||
|
||
(ws->output = get_output_by_name(ws->preferred_output)) == NULL)
|
||
ws->output = output;
|
||
|
||
DLOG("old_output = %p, ws->output = %p\n", old_output, ws->output);
|
||
/* If the assignment did not change, we do not need to update anything */
|
||
if (old_output != NULL && ws->output == old_output)
|
||
return;
|
||
|
||
workspace_assign_to(ws, ws->output, false);
|
||
|
||
ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"init\"}");
|
||
}
|
||
|
||
/*
|
||
* Gets the first unused workspace for the given screen, taking into account
|
||
* the preferred_output setting of every workspace (workspace assignments).
|
||
*
|
||
*/
|
||
Workspace *get_first_workspace_for_output(Output *output) {
|
||
Workspace *result = NULL;
|
||
|
||
Workspace *ws;
|
||
TAILQ_FOREACH(ws, workspaces, workspaces) {
|
||
if (ws->preferred_output == NULL ||
|
||
get_output_by_name(ws->preferred_output) != output)
|
||
continue;
|
||
|
||
result = ws;
|
||
break;
|
||
}
|
||
|
||
if (result == NULL) {
|
||
/* No assignment found, returning first unused workspace */
|
||
TAILQ_FOREACH(ws, workspaces, workspaces) {
|
||
if (ws->output != NULL)
|
||
continue;
|
||
|
||
result = ws;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (result == NULL) {
|
||
DLOG("No existing free workspace found to assign, creating a new one\n");
|
||
|
||
int last_ws = 0;
|
||
TAILQ_FOREACH(ws, workspaces, workspaces)
|
||
last_ws = ws->num;
|
||
result = workspace_get(last_ws + 1);
|
||
}
|
||
|
||
workspace_initialize(result, output, false);
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
* 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)
|
||
client_map(conn, client);
|
||
|
||
/* Map all floating clients */
|
||
if (!ws->floating_hidden)
|
||
TAILQ_FOREACH(client, &(ws->floating_clients), floating_clients)
|
||
client_map(conn, client);
|
||
|
||
/* 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 && stack_win->rect.height > 0)
|
||
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) {
|
||
DLOG("unmapping normal client %p / %p / %p\n", client, client->frame, client->child);
|
||
client_unmap(conn, client);
|
||
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;
|
||
|
||
DLOG("unmapping floating client %p / %p / %p\n", client, client->frame, client->child);
|
||
|
||
client_unmap(conn, client);
|
||
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;
|
||
DLOG("workspace %p is empty\n", u_ws);
|
||
SLIST_FOREACH(dock, &(u_ws->output->dock_clients), dock_clients) {
|
||
if (dock->workspace != u_ws)
|
||
continue;
|
||
|
||
DLOG("Re-assigning dock client to c_ws (%p)\n", c_ws);
|
||
dock->workspace = c_ws;
|
||
}
|
||
u_ws->output = 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);
|
||
}
|
||
|
||
/*
|
||
* Goes through all clients on the given workspace and updates the workspace’s
|
||
* urgent flag accordingly.
|
||
*
|
||
*/
|
||
void workspace_update_urgent_flag(Workspace *ws) {
|
||
Client *current;
|
||
bool old_flag = ws->urgent;
|
||
bool urgent = false;
|
||
|
||
SLIST_FOREACH(current, &(ws->focus_stack), focus_clients) {
|
||
if (!current->urgent)
|
||
continue;
|
||
|
||
urgent = true;
|
||
break;
|
||
}
|
||
|
||
ws->urgent = urgent;
|
||
|
||
if (old_flag != urgent)
|
||
ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"urgent\"}");
|
||
}
|
||
|
||
/*
|
||
* Returns the width of the workspace.
|
||
*
|
||
*/
|
||
int workspace_width(Workspace *ws) {
|
||
return ws->rect.width;
|
||
}
|
||
|
||
/*
|
||
* Returns the effective height of the workspace (without the internal bar and
|
||
* without dock clients).
|
||
*
|
||
*/
|
||
int workspace_height(Workspace *ws) {
|
||
int height = ws->rect.height;
|
||
i3Font *font = load_font(global_conn, config.font);
|
||
|
||
/* Reserve space for dock clients */
|
||
Client *client;
|
||
SLIST_FOREACH(client, &(ws->output->dock_clients), dock_clients)
|
||
height -= client->desired_height;
|
||
|
||
/* Space for the internal bar */
|
||
if (!config.disable_workspace_bar)
|
||
height -= (font->height + 6);
|
||
|
||
return height;
|
||
}
|