mirror of
https://github.com/leahneukirchen/cwm.git
synced 2023-08-10 21:13:12 +03:00
423 lines
9.9 KiB
C
423 lines
9.9 KiB
C
/*
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* calmwm - the calm window manager
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*
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* Copyright (c) 2004 Marius Aamodt Eriksen <marius@monkey.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $OpenBSD$
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*/
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/*
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* NOTE:
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* It is the responsibility of the caller to deal with memory
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* management of the xevent's.
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*/
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#include <sys/param.h>
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#include "queue.h"
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#include <err.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "calmwm.h"
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static void xev_handle_maprequest(XEvent *);
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static void xev_handle_unmapnotify(XEvent *);
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static void xev_handle_destroynotify(XEvent *);
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static void xev_handle_configurerequest(XEvent *);
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static void xev_handle_propertynotify(XEvent *);
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static void xev_handle_enternotify(XEvent *);
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static void xev_handle_buttonpress(XEvent *);
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static void xev_handle_buttonrelease(XEvent *);
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static void xev_handle_keypress(XEvent *);
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static void xev_handle_keyrelease(XEvent *);
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static void xev_handle_clientmessage(XEvent *);
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static void xev_handle_randr(XEvent *);
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static void xev_handle_mappingnotify(XEvent *);
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static void xev_handle_expose(XEvent *);
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void (*xev_handlers[LASTEvent])(XEvent *) = {
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[MapRequest] = xev_handle_maprequest,
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[UnmapNotify] = xev_handle_unmapnotify,
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[DestroyNotify] = xev_handle_destroynotify,
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[ConfigureRequest] = xev_handle_configurerequest,
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[PropertyNotify] = xev_handle_propertynotify,
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[EnterNotify] = xev_handle_enternotify,
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[ButtonPress] = xev_handle_buttonpress,
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[ButtonRelease] = xev_handle_buttonrelease,
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[KeyPress] = xev_handle_keypress,
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[KeyRelease] = xev_handle_keyrelease,
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[ClientMessage] = xev_handle_clientmessage,
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[MappingNotify] = xev_handle_mappingnotify,
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[Expose] = xev_handle_expose,
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};
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static KeySym modkeys[] = { XK_Alt_L, XK_Alt_R, XK_Super_L, XK_Super_R,
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XK_Control_L, XK_Control_R };
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static void
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xev_handle_maprequest(XEvent *ee)
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{
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XMapRequestEvent *e = &ee->xmaprequest;
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struct client_ctx *cc = NULL, *old_cc;
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XWindowAttributes xattr;
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if ((old_cc = client_current()))
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client_ptrsave(old_cc);
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if ((cc = client_find(e->window)) == NULL) {
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XGetWindowAttributes(X_Dpy, e->window, &xattr);
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cc = client_init(e->window, screen_fromroot(xattr.root), 1);
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}
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if ((cc->flags & CLIENT_IGNORE) == 0)
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client_ptrwarp(cc);
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}
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static void
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xev_handle_unmapnotify(XEvent *ee)
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{
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XUnmapEvent *e = &ee->xunmap;
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struct client_ctx *cc;
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if ((cc = client_find(e->window)) != NULL) {
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if (e->send_event) {
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client_set_wm_state(cc, WithdrawnState);
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} else {
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if (!(cc->flags & CLIENT_HIDDEN))
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client_delete(cc);
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}
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}
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}
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static void
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xev_handle_destroynotify(XEvent *ee)
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{
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XDestroyWindowEvent *e = &ee->xdestroywindow;
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struct client_ctx *cc;
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if ((cc = client_find(e->window)) != NULL)
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client_delete(cc);
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}
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static void
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xev_handle_configurerequest(XEvent *ee)
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{
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XConfigureRequestEvent *e = &ee->xconfigurerequest;
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struct client_ctx *cc;
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struct screen_ctx *sc;
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XWindowChanges wc;
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if ((cc = client_find(e->window)) != NULL) {
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sc = cc->sc;
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if (e->value_mask & CWWidth)
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cc->geom.w = e->width;
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if (e->value_mask & CWHeight)
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cc->geom.h = e->height;
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if (e->value_mask & CWX)
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cc->geom.x = e->x;
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if (e->value_mask & CWY)
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cc->geom.y = e->y;
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if (e->value_mask & CWBorderWidth)
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cc->bwidth = e->border_width;
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if (e->value_mask & CWSibling)
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wc.sibling = e->above;
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if (e->value_mask & CWStackMode)
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wc.stack_mode = e->detail;
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if (cc->geom.x == 0 && cc->geom.w >= sc->view.w)
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cc->geom.x -= cc->bwidth;
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if (cc->geom.y == 0 && cc->geom.h >= sc->view.h)
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cc->geom.y -= cc->bwidth;
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wc.x = cc->geom.x;
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wc.y = cc->geom.y;
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wc.width = cc->geom.w;
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wc.height = cc->geom.h;
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wc.border_width = cc->bwidth;
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XConfigureWindow(X_Dpy, cc->win, e->value_mask, &wc);
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client_config(cc);
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} else {
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/* let it do what it wants, it'll be ours when we map it. */
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wc.x = e->x;
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wc.y = e->y;
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wc.width = e->width;
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wc.height = e->height;
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wc.border_width = e->border_width;
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wc.stack_mode = Above;
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e->value_mask &= ~CWStackMode;
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XConfigureWindow(X_Dpy, e->window, e->value_mask, &wc);
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}
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}
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static void
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xev_handle_propertynotify(XEvent *ee)
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{
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XPropertyEvent *e = &ee->xproperty;
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struct screen_ctx *sc;
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struct client_ctx *cc;
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if ((cc = client_find(e->window)) != NULL) {
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switch (e->atom) {
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case XA_WM_NORMAL_HINTS:
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client_getsizehints(cc);
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break;
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case XA_WM_NAME:
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client_setname(cc);
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break;
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case XA_WM_HINTS:
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client_wm_hints(cc);
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client_draw_border(cc);
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break;
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case XA_WM_TRANSIENT_FOR:
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client_transient(cc);
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break;
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default:
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/* do nothing */
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break;
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}
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} else {
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TAILQ_FOREACH(sc, &Screenq, entry) {
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if (sc->rootwin == e->window) {
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if (e->atom == ewmh[_NET_DESKTOP_NAMES])
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group_update_names(sc);
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}
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}
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}
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}
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static void
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xev_handle_enternotify(XEvent *ee)
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{
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XCrossingEvent *e = &ee->xcrossing;
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struct client_ctx *cc;
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Last_Event_Time = e->time;
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if ((cc = client_find(e->window)) != NULL)
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client_setactive(cc);
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}
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/* We can split this into two event handlers. */
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static void
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xev_handle_buttonpress(XEvent *ee)
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{
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XButtonEvent *e = &ee->xbutton;
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struct client_ctx *cc, fakecc;
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struct binding *mb;
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e->state &= ~IGNOREMODMASK;
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TAILQ_FOREACH(mb, &Conf.mousebindingq, entry) {
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if (e->button == mb->press.button && e->state == mb->modmask)
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break;
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}
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if (mb == NULL)
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return;
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if (mb->flags & CWM_WIN) {
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if (((cc = client_find(e->window)) == NULL) &&
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(cc = client_current()) == NULL)
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return;
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} else {
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if (e->window != e->root)
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return;
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cc = &fakecc;
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cc->sc = screen_fromroot(e->window);
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}
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(*mb->callback)(cc, &mb->argument);
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}
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static void
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xev_handle_buttonrelease(XEvent *ee)
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{
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struct client_ctx *cc;
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if ((cc = client_current()))
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group_sticky_toggle_exit(cc);
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}
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static void
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xev_handle_keypress(XEvent *ee)
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{
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XKeyEvent *e = &ee->xkey;
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struct client_ctx *cc = NULL, fakecc;
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struct binding *kb;
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KeySym keysym, skeysym;
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unsigned int modshift;
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keysym = XkbKeycodeToKeysym(X_Dpy, e->keycode, 0, 0);
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skeysym = XkbKeycodeToKeysym(X_Dpy, e->keycode, 0, 1);
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e->state &= ~IGNOREMODMASK;
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TAILQ_FOREACH(kb, &Conf.keybindingq, entry) {
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if (keysym != kb->press.keysym && skeysym == kb->press.keysym)
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modshift = ShiftMask;
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else
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modshift = 0;
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if ((kb->modmask | modshift) != e->state)
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continue;
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if (kb->press.keysym == (modshift == 0 ? keysym : skeysym))
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break;
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}
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if (kb == NULL)
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return;
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if (kb->flags & CWM_WIN) {
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if (((cc = client_find(e->window)) == NULL) &&
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(cc = client_current()) == NULL)
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return;
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} else {
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cc = &fakecc;
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cc->sc = screen_fromroot(e->window);
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}
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(*kb->callback)(cc, &kb->argument);
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}
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/*
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* This is only used for the modifier suppression detection.
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*/
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static void
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xev_handle_keyrelease(XEvent *ee)
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{
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XKeyEvent *e = &ee->xkey;
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struct screen_ctx *sc;
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KeySym keysym;
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unsigned int i;
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sc = screen_fromroot(e->root);
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keysym = XkbKeycodeToKeysym(X_Dpy, e->keycode, 0, 0);
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for (i = 0; i < nitems(modkeys); i++) {
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if (keysym == modkeys[i]) {
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client_cycle_leave(sc);
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break;
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}
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}
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}
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static void
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xev_handle_clientmessage(XEvent *ee)
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{
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XClientMessageEvent *e = &ee->xclient;
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struct client_ctx *cc, *old_cc;
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struct screen_ctx *sc;
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sc = screen_fromroot(e->window);
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if ((cc = client_find(e->window)) == NULL && e->window != sc->rootwin)
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return;
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if (e->message_type == cwmh[WM_CHANGE_STATE] && e->format == 32 &&
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e->data.l[0] == IconicState)
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client_hide(cc);
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if (e->message_type == ewmh[_NET_CLOSE_WINDOW])
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client_send_delete(cc);
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if (e->message_type == ewmh[_NET_ACTIVE_WINDOW] && e->format == 32) {
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if ((old_cc = client_current()))
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client_ptrsave(old_cc);
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client_ptrwarp(cc);
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}
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if (e->message_type == ewmh[_NET_WM_DESKTOP] && e->format == 32) {
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/*
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* The EWMH spec states that if the cardinal returned is
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* 0xFFFFFFFF (-1) then the window should appear on all
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* desktops, which in our case is assigned to group 0.
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*/
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if (e->data.l[0] == (unsigned long)-1)
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group_movetogroup(cc, 0);
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else
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group_movetogroup(cc, e->data.l[0]);
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}
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if (e->message_type == ewmh[_NET_WM_STATE] && e->format == 32)
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xu_ewmh_handle_net_wm_state_msg(cc,
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e->data.l[0], e->data.l[1], e->data.l[2]);
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if (e->message_type == ewmh[_NET_CURRENT_DESKTOP] && e->format == 32)
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group_only(sc, e->data.l[0]);
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}
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static void
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xev_handle_randr(XEvent *ee)
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{
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XRRScreenChangeNotifyEvent *rev = (XRRScreenChangeNotifyEvent *)ee;
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struct screen_ctx *sc;
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int i;
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i = XRRRootToScreen(X_Dpy, rev->root);
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TAILQ_FOREACH(sc, &Screenq, entry) {
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if (sc->which == i) {
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XRRUpdateConfiguration(ee);
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screen_update_geometry(sc);
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}
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}
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}
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/*
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* Called when the keymap has changed.
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* Ungrab all keys, reload keymap and then regrab
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*/
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static void
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xev_handle_mappingnotify(XEvent *ee)
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{
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XMappingEvent *e = &ee->xmapping;
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struct screen_ctx *sc;
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XRefreshKeyboardMapping(e);
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if (e->request == MappingKeyboard) {
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TAILQ_FOREACH(sc, &Screenq, entry)
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conf_grab_kbd(sc->rootwin);
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}
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}
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static void
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xev_handle_expose(XEvent *ee)
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{
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XExposeEvent *e = &ee->xexpose;
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struct client_ctx *cc;
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if ((cc = client_find(e->window)) != NULL && e->count == 0)
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client_draw_border(cc);
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}
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void
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xev_process(void)
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{
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XEvent e;
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XNextEvent(X_Dpy, &e);
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if (e.type - Randr_ev == RRScreenChangeNotify)
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xev_handle_randr(&e);
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else if (e.type < LASTEvent && xev_handlers[e.type] != NULL)
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(*xev_handlers[e.type])(&e);
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}
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