938 lines
38 KiB
C
938 lines
38 KiB
C
/*
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* vim:ts=8:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2009 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <time.h>
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#include <xcb/xcb.h>
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#include <xcb/xcb_wm.h>
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#include <xcb/xcb_icccm.h>
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#include <X11/XKBlib.h>
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#include "i3.h"
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#include "debug.h"
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#include "table.h"
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#include "layout.h"
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#include "commands.h"
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#include "data.h"
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#include "xcb.h"
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#include "util.h"
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#include "xinerama.h"
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#include "config.h"
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#include "queue.h"
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/* After mapping/unmapping windows, a notify event is generated. However, we don’t want it,
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since it’d trigger an infinite loop of switching between the different windows when
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changing workspaces */
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static SLIST_HEAD(ignore_head, Ignore_Event) ignore_events;
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static void add_ignore_event(const int sequence) {
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struct Ignore_Event *event = smalloc(sizeof(struct Ignore_Event));
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event->sequence = sequence;
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event->added = time(NULL);
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LOG("Adding sequence %d to ignorelist\n", sequence);
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SLIST_INSERT_HEAD(&ignore_events, event, ignore_events);
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}
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/*
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* Checks if the given sequence is ignored and returns true if so.
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*
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*/
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static bool event_is_ignored(const int sequence) {
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struct Ignore_Event *event;
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time_t now = time(NULL);
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for (event = SLIST_FIRST(&ignore_events); event != SLIST_END(&ignore_events);) {
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if ((now - event->added) > 5) {
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LOG("Entry is older than five seconds, cleaning up\n");
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struct Ignore_Event *save = event;
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event = SLIST_NEXT(event, ignore_events);
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SLIST_REMOVE(&ignore_events, save, Ignore_Event, ignore_events);
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free(save);
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} else event = SLIST_NEXT(event, ignore_events);
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}
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SLIST_FOREACH(event, &ignore_events, ignore_events) {
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if (event->sequence == sequence) {
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LOG("Ignoring event (sequence %d)\n", sequence);
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SLIST_REMOVE(&ignore_events, event, Ignore_Event, ignore_events);
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free(event);
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return true;
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}
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}
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return false;
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}
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/*
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* Due to bindings like Mode_switch + <a>, we need to bind some keys in XCB_GRAB_MODE_SYNC.
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* Therefore, we just replay all key presses.
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*
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*/
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int handle_key_release(void *ignored, xcb_connection_t *conn, xcb_key_release_event_t *event) {
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LOG("got key release, just passing\n");
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xcb_allow_events(conn, XCB_ALLOW_REPLAY_KEYBOARD, event->time);
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xcb_flush(conn);
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return 1;
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}
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/*
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* There was a key press. We compare this key code with our bindings table and pass
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* the bound action to parse_command().
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*
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*/
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int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
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LOG("Keypress %d\n", event->detail);
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/* We need to get the keysym group (There are group 1 to group 4, each holding
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two keysyms (without shift and with shift) using Xkb because X fails to
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provide them reliably (it works in Xephyr, it does not in real X) */
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XkbStateRec state;
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if (XkbGetState(xkbdpy, XkbUseCoreKbd, &state) == Success && (state.group+1) == 2)
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event->state |= 0x2;
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LOG("state %d\n", event->state);
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/* Remove the numlock bit, all other bits are modifiers we can bind to */
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uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK);
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/* Find the binding */
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Binding *bind;
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TAILQ_FOREACH(bind, &bindings, bindings)
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if (bind->keycode == event->detail && bind->mods == state_filtered)
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break;
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/* No match? Then it was an actively grabbed key, that is with Mode_switch, and
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the user did not press Mode_switch, so just pass it… */
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if (bind == TAILQ_END(&bindings)) {
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xcb_allow_events(conn, ReplayKeyboard, event->time);
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xcb_flush(conn);
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return 1;
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}
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parse_command(conn, bind->command);
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if (event->state & 0x2) {
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LOG("Mode_switch -> allow_events(SyncKeyboard)\n");
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xcb_allow_events(conn, SyncKeyboard, event->time);
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xcb_flush(conn);
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}
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return 1;
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}
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/*
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* When the user moves the mouse pointer onto a window, this callback gets called.
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*
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*/
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int handle_enter_notify(void *ignored, xcb_connection_t *conn, xcb_enter_notify_event_t *event) {
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LOG("enter_notify for %08x, mode = %d, detail %d, serial %d\n", event->event, event->mode, event->detail, event->sequence);
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if (event->mode != XCB_NOTIFY_MODE_NORMAL) {
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LOG("This was not a normal notify, ignoring\n");
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return 1;
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}
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/* Some events are not interesting, because they were not generated actively by the
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user, but be reconfiguration of windows */
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if (event_is_ignored(event->sequence))
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return 1;
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/* This was either a focus for a client’s parent (= titlebar)… */
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Client *client = table_get(byParent, event->event);
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/* …or the client itself */
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if (client == NULL)
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client = table_get(byChild, event->event);
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/* Check for stack windows */
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if (client == NULL) {
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struct Stack_Window *stack_win;
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SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
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if (stack_win->window == event->event) {
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client = stack_win->container->currently_focused;
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break;
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}
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}
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/* If not, then the user moved his cursor to the root window. In that case, we adjust c_ws */
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if (client == NULL) {
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LOG("Getting screen at %d x %d\n", event->root_x, event->root_y);
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i3Screen *screen = get_screen_containing(event->root_x, event->root_y);
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if (screen == NULL) {
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LOG("ERROR: No such screen\n");
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return 0;
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}
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c_ws = &workspaces[screen->current_workspace];
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LOG("We're now on virtual screen number %d\n", screen->num);
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return 1;
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}
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/* Do plausibility checks: This event may be useless for us if it occurs on a window
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which is in a stacked container but not the focused one */
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if (client->container != NULL &&
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client->container->mode == MODE_STACK &&
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client->container->currently_focused != client) {
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LOG("Plausibility check says: no\n");
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return 1;
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}
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set_focus(conn, client);
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return 1;
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}
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/*
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* Checks if the button press was on a stack window, handles focus setting and returns true
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* if so, or false otherwise.
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*
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*/
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static bool button_press_stackwin(xcb_connection_t *conn, xcb_button_press_event_t *event) {
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struct Stack_Window *stack_win;
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SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
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if (stack_win->window == event->event) {
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/* A stack window was clicked. We calculate the destination client by
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dividing the Y position of the event through the height of a window
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decoration and then set the focus to this client. */
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i3Font *font = load_font(conn, config.font);
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int decoration_height = (font->height + 2 + 2);
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int destination = (event->event_y / decoration_height),
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c = 0;
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Client *client;
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LOG("Click on stack_win for client %d\n", destination);
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CIRCLEQ_FOREACH(client, &(stack_win->container->clients), clients)
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if (c++ == destination) {
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set_focus(conn, client);
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return true;
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}
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return true;
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}
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return false;
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}
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/*
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* Checks if the button press was on a bar, switches to the workspace and returns true
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* if so, or false otherwise.
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*
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*/
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static bool button_press_bar(xcb_connection_t *conn, xcb_button_press_event_t *event) {
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i3Screen *screen;
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TAILQ_FOREACH(screen, virtual_screens, screens)
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if (screen->bar == event->event) {
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LOG("Click on a bar\n");
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i3Font *font = load_font(conn, config.font);
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int workspace = event->event_x / (font->height + 6),
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c = 0;
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/* Because workspaces can be on different screens, we need to loop
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through all of them and decide to count it based on its ->screen */
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for (int i = 0; i < 10; i++)
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if ((workspaces[i].screen == screen) && (c++ == workspace)) {
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show_workspace(conn, i+1);
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return true;
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}
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return true;
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}
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return false;
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}
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int handle_button_press(void *ignored, xcb_connection_t *conn, xcb_button_press_event_t *event) {
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LOG("button press!\n");
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/* This was either a focus for a client’s parent (= titlebar)… */
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Client *client = table_get(byChild, event->event);
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bool border_click = false;
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if (client == NULL) {
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client = table_get(byParent, event->event);
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border_click = true;
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}
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if (client == NULL) {
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/* The client was neither on a client’s titlebar nor on a client itself, maybe on a stack_window? */
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if (button_press_stackwin(conn, event))
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return 1;
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/* Or on a bar? */
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if (button_press_bar(conn, event))
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return 1;
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LOG("Could not handle this button press\n");
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return 1;
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}
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xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
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xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
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/* Set focus in any case */
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set_focus(conn, client);
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/* Let’s see if this was on the borders (= resize). If not, we’re done */
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LOG("press button on x=%d, y=%d\n", event->event_x, event->event_y);
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Container *con = client->container,
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*first = NULL,
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*second = NULL;
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enum { O_HORIZONTAL, O_VERTICAL } orientation = O_VERTICAL;
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int new_position;
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if (con == NULL) {
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LOG("dock. done.\n");
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xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
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xcb_flush(conn);
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return 1;
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}
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LOG("event->event_x = %d, client->rect.width = %d\n", event->event_x, client->rect.width);
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if (!border_click) {
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LOG("client. done.\n");
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xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
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xcb_flush(conn);
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return 1;
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}
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/* Don’t handle events inside the titlebar, only borders are interesting */
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i3Font *font = load_font(conn, config.font);
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if (event->event_y >= 2 && event->event_y <= (font->height + 2 + 2)) {
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LOG("click on titlebar\n");
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return 1;
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}
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if (event->event_y < 2) {
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/* This was a press on the top border */
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if (con->row == 0)
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return 1;
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first = con->workspace->table[con->col][con->row-1];
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second = con;
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orientation = O_HORIZONTAL;
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} else if (event->event_y >= (client->rect.height - 2)) {
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/* …bottom border */
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if (con->row == (con->workspace->rows-1))
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return 1;
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first = con;
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second = con->workspace->table[con->col][con->row+1];
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orientation = O_HORIZONTAL;
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} else if (event->event_x <= 2) {
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/* …left border */
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if (con->col == 0)
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return 1;
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first = con->workspace->table[con->col-1][con->row];
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second = con;
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} else if (event->event_x > 2) {
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/* …right border */
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if (con->col == (con->workspace->cols-1))
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return 1;
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first = con;
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second = con->workspace->table[con->col+1][con->row];
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}
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/* FIXME: horizontal resizing causes empty spaces to exist */
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if (orientation == O_HORIZONTAL) {
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LOG("Sorry, horizontal resizing is not yet activated due to creating layout bugs."
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"If you are brave, enable the code for yourself and try fixing it.\n");
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return 1;
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}
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uint32_t mask = 0;
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uint32_t values[2];
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mask = XCB_CW_OVERRIDE_REDIRECT;
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values[0] = 1;
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/* Open a new window, the resizebar. Grab the pointer and move the window around
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as the user moves the pointer. */
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Rect grabrect = {0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels};
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xcb_window_t grabwin = create_window(conn, grabrect, XCB_WINDOW_CLASS_INPUT_ONLY, -1, mask, values);
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Rect helprect;
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if (orientation == O_VERTICAL) {
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helprect.x = event->root_x;
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helprect.y = 0;
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helprect.width = 2;
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helprect.height = root_screen->height_in_pixels; /* this has to be the cell’s height */
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new_position = event->root_x;
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} else {
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helprect.x = 0;
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helprect.y = event->root_y;
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helprect.width = root_screen->width_in_pixels; /* this has to be the cell’s width */
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helprect.height = 2;
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new_position = event->root_y;
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}
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mask = XCB_CW_BACK_PIXEL;
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values[0] = get_colorpixel(conn, "#4c7899");
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mask |= XCB_CW_OVERRIDE_REDIRECT;
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values[1] = 1;
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xcb_window_t helpwin = create_window(conn, helprect, XCB_WINDOW_CLASS_INPUT_OUTPUT,
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(orientation == O_VERTICAL ?
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XCB_CURSOR_SB_V_DOUBLE_ARROW :
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XCB_CURSOR_SB_H_DOUBLE_ARROW), mask, values);
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xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin);
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|
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xcb_grab_pointer(conn, false, root, XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION,
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XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, grabwin, XCB_NONE, XCB_CURRENT_TIME);
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|
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xcb_flush(conn);
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|
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xcb_generic_event_t *inside_event;
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/* I’ve always wanted to have my own eventhandler… */
|
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while ((inside_event = xcb_wait_for_event(conn))) {
|
||
/* Same as get_event_handler in xcb */
|
||
int nr = inside_event->response_type;
|
||
if (nr == 0) {
|
||
/* An error occured */
|
||
handle_event(NULL, conn, inside_event);
|
||
free(inside_event);
|
||
continue;
|
||
}
|
||
assert(nr < 256);
|
||
nr &= XCB_EVENT_RESPONSE_TYPE_MASK;
|
||
assert(nr >= 2);
|
||
|
||
/* Check if we need to escape this loop */
|
||
if (nr == XCB_BUTTON_RELEASE)
|
||
break;
|
||
|
||
switch (nr) {
|
||
case XCB_MOTION_NOTIFY:
|
||
if (orientation == O_VERTICAL) {
|
||
values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_x;
|
||
xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_X, values);
|
||
} else {
|
||
values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_y;
|
||
xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_Y, values);
|
||
}
|
||
|
||
xcb_flush(conn);
|
||
break;
|
||
default:
|
||
LOG("Passing to original handler\n");
|
||
/* Use original handler */
|
||
xcb_event_handle(&evenths, inside_event);
|
||
break;
|
||
}
|
||
free(inside_event);
|
||
}
|
||
|
||
xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
|
||
xcb_destroy_window(conn, helpwin);
|
||
xcb_destroy_window(conn, grabwin);
|
||
xcb_flush(conn);
|
||
|
||
Workspace *ws = con->workspace;
|
||
if (orientation == O_VERTICAL) {
|
||
LOG("Resize was from X = %d to X = %d\n", event->root_x, new_position);
|
||
if (event->root_x == new_position) {
|
||
LOG("Nothing changed, not updating anything\n");
|
||
return 1;
|
||
}
|
||
|
||
/* Convert 0 (for default width_factor) to actual numbers */
|
||
if (first->width_factor == 0)
|
||
first->width_factor = ((float)ws->rect.width / ws->cols) / ws->rect.width;
|
||
if (second->width_factor == 0)
|
||
second->width_factor = ((float)ws->rect.width / ws->cols) / ws->rect.width;
|
||
|
||
first->width_factor *= (float)(first->width + (new_position - event->root_x)) / first->width;
|
||
second->width_factor *= (float)(second->width - (new_position - event->root_x)) / second->width;
|
||
} else {
|
||
LOG("Resize was from Y = %d to Y = %d\n", event->root_y, new_position);
|
||
if (event->root_y == new_position) {
|
||
LOG("Nothing changed, not updating anything\n");
|
||
return 1;
|
||
}
|
||
|
||
/* Convert 0 (for default height_factor) to actual numbers */
|
||
if (first->height_factor == 0)
|
||
first->height_factor = ((float)ws->rect.height / ws->rows) / ws->rect.height;
|
||
if (second->height_factor == 0)
|
||
second->height_factor = ((float)ws->rect.height / ws->rows) / ws->rect.height;
|
||
|
||
first->height_factor *= (float)(first->height + (new_position - event->root_y)) / first->height;
|
||
second->height_factor *= (float)(second->height - (new_position - event->root_y)) / second->height;
|
||
}
|
||
|
||
render_layout(conn);
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* A new window appeared on the screen (=was mapped), so let’s manage it.
|
||
*
|
||
*/
|
||
int handle_map_request(void *prophs, xcb_connection_t *conn, xcb_map_request_event_t *event) {
|
||
xcb_get_window_attributes_cookie_t cookie;
|
||
xcb_get_window_attributes_reply_t *reply;
|
||
|
||
cookie = xcb_get_window_attributes_unchecked(conn, event->window);
|
||
|
||
if ((reply = xcb_get_window_attributes_reply(conn, cookie, NULL)) == NULL) {
|
||
LOG("Could not get window attributes\n");
|
||
return -1;
|
||
}
|
||
|
||
window_attributes_t wa = { TAG_VALUE };
|
||
LOG("override_redirect = %d\n", reply->override_redirect);
|
||
wa.u.override_redirect = reply->override_redirect;
|
||
LOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
|
||
add_ignore_event(event->sequence);
|
||
|
||
manage_window(prophs, conn, event->window, wa);
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* Configure requests are received when the application wants to resize windows on their own.
|
||
*
|
||
* We generate a synthethic configure notify event to signalize the client its "new" position.
|
||
*
|
||
*/
|
||
int handle_configure_request(void *prophs, xcb_connection_t *conn, xcb_configure_request_event_t *event) {
|
||
LOG("configure-request, serial %d\n", event->sequence);
|
||
LOG("event->window = %08x\n", event->window);
|
||
LOG("application wants to be at %dx%d with %dx%d\n", event->x, event->y, event->width, event->height);
|
||
|
||
Client *client = table_get(byChild, event->window);
|
||
if (client == NULL) {
|
||
LOG("This client is not mapped, so we don't care and just tell the client that he will get its size\n");
|
||
Rect rect = {event->x, event->y, event->width, event->height};
|
||
fake_configure_notify(conn, rect, event->window);
|
||
return 1;
|
||
}
|
||
|
||
fake_configure_notify(conn, client->child_rect, client->child);
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* Configuration notifies are only handled because we need to set up ignore for the following
|
||
* enter notify events
|
||
*
|
||
*/
|
||
int handle_configure_event(void *prophs, xcb_connection_t *conn, xcb_configure_notify_event_t *event) {
|
||
xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
|
||
|
||
LOG("handle_configure_event for window %08x\n", event->window);
|
||
LOG("event->type = %d, \n", event->response_type);
|
||
LOG("event->x = %d, ->y = %d, ->width = %d, ->height = %d\n", event->x, event->y, event->width, event->height);
|
||
add_ignore_event(event->sequence);
|
||
|
||
if (event->event == root) {
|
||
LOG("reconfigure of the root window, need to xinerama\n");
|
||
/* FIXME: Somehow, this is occuring too often. Therefore, we check for 0/0,
|
||
but is there a better way? */
|
||
if (event->x == 0 && event->y == 0)
|
||
xinerama_requery_screens(conn);
|
||
return 1;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* Our window decorations were unmapped. That means, the window will be killed now,
|
||
* so we better clean up before.
|
||
*
|
||
*/
|
||
int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event) {
|
||
xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
|
||
|
||
add_ignore_event(event->sequence);
|
||
|
||
Client *client = table_get(byChild, event->window);
|
||
/* First, we need to check if the client is awaiting an unmap-request which
|
||
was generated by us reparenting the window. In that case, we just ignore it. */
|
||
if (client != NULL && client->awaiting_useless_unmap) {
|
||
LOG("Dropping this unmap request, it was generated by reparenting\n");
|
||
client->awaiting_useless_unmap = false;
|
||
return 1;
|
||
}
|
||
|
||
LOG("event->window = %08x, event->event = %08x\n", event->window, event->event);
|
||
LOG("UnmapNotify for 0x%08x (received from 0x%08x)\n", event->window, event->event);
|
||
if (client == NULL) {
|
||
LOG("not a managed window. Ignoring.\n");
|
||
return 0;
|
||
}
|
||
|
||
client = table_remove(byChild, event->window);
|
||
|
||
if (client->name != NULL)
|
||
free(client->name);
|
||
|
||
if (client->container != NULL) {
|
||
Container *con = client->container;
|
||
|
||
/* If this was the fullscreen client, we need to unset it */
|
||
if (client->fullscreen)
|
||
con->workspace->fullscreen_client = NULL;
|
||
|
||
/* Remove the client from the list of clients */
|
||
remove_client_from_container(conn, client, con);
|
||
|
||
/* Set focus to the last focused client in this container */
|
||
con->currently_focused = NULL;
|
||
Client *focus_client;
|
||
SLIST_FOREACH(focus_client, &(con->workspace->focus_stack), focus_clients)
|
||
if (focus_client->container == con) {
|
||
con->currently_focused = focus_client;
|
||
/* Only if this is the active container, we need to really change focus */
|
||
if (con == CUR_CELL)
|
||
set_focus(conn, focus_client);
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (client->dock) {
|
||
LOG("Removing from dock clients\n");
|
||
SLIST_REMOVE(&(client->workspace->dock_clients), client, Client, dock_clients);
|
||
}
|
||
|
||
LOG("child of 0x%08x.\n", client->frame);
|
||
xcb_reparent_window(conn, client->child, root, 0, 0);
|
||
xcb_destroy_window(conn, client->frame);
|
||
xcb_flush(conn);
|
||
table_remove(byParent, client->frame);
|
||
|
||
if (client->container != NULL)
|
||
cleanup_table(conn, client->container->workspace);
|
||
|
||
free(client);
|
||
|
||
render_layout(conn);
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* Called when a window changes its title
|
||
*
|
||
*/
|
||
int handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
|
||
xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
|
||
LOG("window's name changed.\n");
|
||
if (prop == NULL || xcb_get_property_value_length(prop) == 0) {
|
||
LOG("_NET_WM_NAME not specified, not changing\n");
|
||
return 1;
|
||
}
|
||
Client *client = table_get(byChild, window);
|
||
if (client == NULL)
|
||
return 1;
|
||
|
||
/* Save the old pointer to make the update atomic */
|
||
char *new_name;
|
||
int new_len;
|
||
asprintf(&new_name, "%.*s", xcb_get_property_value_length(prop), (char*)xcb_get_property_value(prop));
|
||
/* Convert it to UCS-2 here for not having to convert it later every time we want to pass it to X */
|
||
char *ucs2_name = convert_utf8_to_ucs2(new_name, &new_len);
|
||
LOG("Name should change to \"%s\"\n", new_name);
|
||
free(new_name);
|
||
|
||
/* Check if they are the same and don’t update if so.
|
||
Note the use of new_len * 2 to check all bytes as each glyph takes 2 bytes.
|
||
Also note the use of memcmp() instead of strncmp() because the latter stops on nullbytes,
|
||
but UCS-2 uses nullbytes to fill up glyphs which only use one byte. */
|
||
if ((new_len == client->name_len) &&
|
||
(client->name != NULL) &&
|
||
(memcmp(client->name, ucs2_name, new_len * 2) == 0)) {
|
||
LOG("Name did not change, not updating\n");
|
||
free(ucs2_name);
|
||
return 1;
|
||
}
|
||
|
||
char *old_name = client->name;
|
||
client->name = ucs2_name;
|
||
client->name_len = new_len;
|
||
client->uses_net_wm_name = true;
|
||
|
||
if (old_name != NULL)
|
||
free(old_name);
|
||
|
||
/* If the client is a dock window, we don’t need to render anything */
|
||
if (client->dock)
|
||
return 1;
|
||
|
||
if (client->container->mode == MODE_STACK)
|
||
render_container(conn, client->container);
|
||
else decorate_window(conn, client, client->frame, client->titlegc, 0);
|
||
xcb_flush(conn);
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* We handle legacy window names (titles) which are in COMPOUND_TEXT encoding. However, we
|
||
* just pass them along, so when containing non-ASCII characters, those will be rendering
|
||
* incorrectly. In order to correctly render unicode window titles in i3, an application
|
||
* has to set _NET_WM_NAME, which is in UTF-8 encoding.
|
||
*
|
||
* On every update, a message is put out to the user, so he may improve the situation and
|
||
* update applications which display filenames in their title to correctly use
|
||
* _NET_WM_NAME and therefore support unicode.
|
||
*
|
||
*/
|
||
int handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
|
||
xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
|
||
LOG("window's name changed (legacy).\n");
|
||
if (prop == NULL || xcb_get_property_value_length(prop) == 0) {
|
||
LOG("prop == NULL\n");
|
||
return 1;
|
||
}
|
||
Client *client = table_get(byChild, window);
|
||
if (client == NULL)
|
||
return 1;
|
||
|
||
if (client->uses_net_wm_name) {
|
||
LOG("This client is capable of _NET_WM_NAME, ignoring legacy name\n");
|
||
return 1;
|
||
}
|
||
|
||
/* Save the old pointer to make the update atomic */
|
||
char *new_name;
|
||
asprintf(&new_name, "%.*s", xcb_get_property_value_length(prop), (char*)xcb_get_property_value(prop));
|
||
/* Convert it to UCS-2 here for not having to convert it later every time we want to pass it to X */
|
||
LOG("Name should change to \"%s\"\n", new_name);
|
||
|
||
/* Check if they are the same and don’t update if so. */
|
||
if (client->name != NULL &&
|
||
strlen(new_name) == strlen(client->name) &&
|
||
strcmp(client->name, new_name) == 0) {
|
||
LOG("Name did not change, not updating\n");
|
||
free(new_name);
|
||
return 1;
|
||
}
|
||
|
||
LOG("Using legacy window title. Note that in order to get Unicode window titles in i3,"
|
||
"the application has to set _NET_WM_NAME which is in UTF-8 encoding.\n");
|
||
|
||
char *old_name = client->name;
|
||
client->name = new_name;
|
||
client->name_len = -1;
|
||
|
||
if (old_name != NULL)
|
||
free(old_name);
|
||
|
||
/* If the client is a dock window, we don’t need to render anything */
|
||
if (client->dock)
|
||
return 1;
|
||
|
||
if (client->container->mode == MODE_STACK)
|
||
render_container(conn, client->container);
|
||
else decorate_window(conn, client, client->frame, client->titlegc, 0);
|
||
xcb_flush(conn);
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* Expose event means we should redraw our windows (= title bar)
|
||
*
|
||
*/
|
||
int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event) {
|
||
/* event->count is the number of minimum remaining expose events for this window, so we
|
||
skip all events but the last one */
|
||
if (event->count != 0)
|
||
return 1;
|
||
LOG("window = %08x\n", event->window);
|
||
|
||
Client *client = table_get(byParent, event->window);
|
||
if (client == NULL) {
|
||
/* There was no client in the table, so this is probably an expose event for
|
||
one of our stack_windows. */
|
||
struct Stack_Window *stack_win;
|
||
SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
|
||
if (stack_win->window == event->window) {
|
||
render_container(conn, stack_win->container);
|
||
return 1;
|
||
}
|
||
|
||
/* …or one of the bars? */
|
||
i3Screen *screen;
|
||
TAILQ_FOREACH(screen, virtual_screens, screens) {
|
||
if (screen->bar == event->window) {
|
||
render_layout(conn);
|
||
}
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
LOG("got client %s\n", client->name);
|
||
if (client->dock) {
|
||
LOG("this is a dock\n");
|
||
return 1;
|
||
}
|
||
|
||
if (client->container->mode != MODE_STACK)
|
||
decorate_window(conn, client, client->frame, client->titlegc, 0);
|
||
else {
|
||
uint32_t background_color;
|
||
/* Distinguish if the window is currently focused… */
|
||
if (CUR_CELL->currently_focused == client)
|
||
background_color = get_colorpixel(conn, "#285577");
|
||
/* …or if it is the focused window in a not focused container */
|
||
else background_color = get_colorpixel(conn, "#555555");
|
||
|
||
/* Set foreground color to current focused color, line width to 2 */
|
||
uint32_t values[] = {background_color, 2};
|
||
xcb_change_gc(conn, client->titlegc, XCB_GC_FOREGROUND | XCB_GC_LINE_WIDTH, values);
|
||
|
||
/* Draw the border, the ±1 is for line width = 2 */
|
||
xcb_point_t points[] = {{1, 0}, /* left upper edge */
|
||
{1, client->rect.height-1}, /* left bottom edge */
|
||
{client->rect.width-1, client->rect.height-1}, /* right bottom edge */
|
||
{client->rect.width-1, 0}}; /* right upper edge */
|
||
xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, client->frame, client->titlegc, 4, points);
|
||
|
||
/* Draw a black background */
|
||
xcb_change_gc_single(conn, client->titlegc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
|
||
xcb_rectangle_t crect = {2, 0, client->rect.width - (2 + 2), client->rect.height - 2};
|
||
xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
|
||
}
|
||
xcb_flush(conn);
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* Handle client messages (EWMH)
|
||
*
|
||
*/
|
||
int handle_client_message(void *data, xcb_connection_t *conn, xcb_client_message_event_t *event) {
|
||
LOG("client_message\n");
|
||
|
||
if (event->type == atoms[_NET_WM_STATE]) {
|
||
if (event->format != 32 || event->data.data32[1] != atoms[_NET_WM_STATE_FULLSCREEN])
|
||
return 0;
|
||
|
||
LOG("fullscreen\n");
|
||
|
||
Client *client = table_get(byChild, event->window);
|
||
if (client == NULL)
|
||
return 0;
|
||
|
||
/* Check if the fullscreen state should be toggled */
|
||
if ((client->fullscreen &&
|
||
(event->data.data32[0] == _NET_WM_STATE_REMOVE ||
|
||
event->data.data32[0] == _NET_WM_STATE_TOGGLE)) ||
|
||
(!client->fullscreen &&
|
||
(event->data.data32[0] == _NET_WM_STATE_ADD ||
|
||
event->data.data32[0] == _NET_WM_STATE_TOGGLE)))
|
||
toggle_fullscreen(conn, client);
|
||
} else {
|
||
LOG("unhandled clientmessage\n");
|
||
return 0;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
int handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
|
||
xcb_atom_t atom, xcb_get_property_reply_t *property) {
|
||
/* TODO: Implement this one. To do this, implement a little test program which sleep(1)s
|
||
before changing this property. */
|
||
LOG("_NET_WM_WINDOW_TYPE changed, this is not yet implemented.\n");
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
* Handles the size hints set by a window, but currently only the part necessary for displaying
|
||
* clients proportionally inside their frames (mplayer for example)
|
||
*
|
||
* See ICCCM 4.1.2.3 for more details
|
||
*
|
||
*/
|
||
int handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
|
||
xcb_atom_t name, xcb_get_property_reply_t *reply) {
|
||
LOG("handle_normal_hints\n");
|
||
Client *client = table_get(byChild, window);
|
||
if (client == NULL) {
|
||
LOG("No such client\n");
|
||
return 1;
|
||
}
|
||
xcb_size_hints_t size_hints;
|
||
|
||
/* If the hints were already in this event, use them, if not, request them */
|
||
if (reply != NULL)
|
||
xcb_get_wm_size_hints_from_reply(&size_hints, reply);
|
||
else
|
||
xcb_get_wm_normal_hints_reply(conn, xcb_get_wm_normal_hints_unchecked(conn, client->child), &size_hints, NULL);
|
||
|
||
/* If no aspect ratio was set or if it was invalid, we ignore the hints */
|
||
if (!(size_hints.flags & XCB_SIZE_HINT_P_ASPECT) ||
|
||
(size_hints.min_aspect_num <= 0) ||
|
||
(size_hints.min_aspect_den <= 0)) {
|
||
LOG("No aspect ratio set, ignoring\n");
|
||
return 1;
|
||
}
|
||
|
||
LOG("window is %08x / %s\n", client->child, client->name);
|
||
|
||
int base_width = 0, base_height = 0,
|
||
min_width = 0, min_height = 0;
|
||
|
||
/* base_width/height are the desired size of the window.
|
||
We check if either the program-specified size or the program-specified
|
||
min-size is available */
|
||
if (size_hints.flags & XCB_SIZE_HINT_P_SIZE) {
|
||
base_width = size_hints.base_width;
|
||
base_height = size_hints.base_height;
|
||
} else if (size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) {
|
||
base_width = size_hints.min_width;
|
||
base_height = size_hints.min_height;
|
||
}
|
||
|
||
if (size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) {
|
||
min_width = size_hints.min_width;
|
||
min_height = size_hints.min_height;
|
||
} else if (size_hints.flags & XCB_SIZE_HINT_P_SIZE) {
|
||
min_width = size_hints.base_width;
|
||
min_height = size_hints.base_height;
|
||
}
|
||
|
||
double width = client->rect.width - base_width;
|
||
double height = client->rect.height - base_height;
|
||
/* Convert numerator/denominator to a double */
|
||
double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
|
||
double max_aspect = (double)size_hints.max_aspect_num / size_hints.min_aspect_den;
|
||
|
||
LOG("min_aspect = %f, max_aspect = %f\n", min_aspect, max_aspect);
|
||
LOG("width = %f, height = %f\n", width, height);
|
||
|
||
/* Sanity checks, this is user-input, in a way */
|
||
if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0)
|
||
return 1;
|
||
|
||
/* Check if we need to set proportional_* variables using the correct ratio */
|
||
if ((width / height) < min_aspect) {
|
||
client->proportional_width = width;
|
||
client->proportional_height = width / min_aspect;
|
||
} else if ((width / height) > max_aspect) {
|
||
client->proportional_width = width;
|
||
client->proportional_height = width / max_aspect;
|
||
} else return 1;
|
||
|
||
client->force_reconfigure = true;
|
||
|
||
if (client->container != NULL) {
|
||
render_container(conn, client->container);
|
||
xcb_flush(conn);
|
||
}
|
||
|
||
return 1;
|
||
}
|