77631d0413
to push attributes around, so things get a lot simplier, while fixing a few issues in the meantime; original suggestion by Edd Barrett many many moons ago. annoying window placement and race, found in c2k8 by todd, fix by oga! lots of feedback from todd and oga - thanks! "commit that bad boy" oga@
549 lines
11 KiB
C
549 lines
11 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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* $Id: xevents.c,v 1.33 2009/01/16 15:24:14 okan Exp $
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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 "headers.h"
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#include "calmwm.h"
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/*
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* NOTE: in reality, many of these should move to client.c now that
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* we've got this nice event layer.
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*/
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void
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xev_handle_maprequest(struct xevent *xev, XEvent *ee)
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{
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XMapRequestEvent *e = &ee->xmaprequest;
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XWindowAttributes xattr;
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struct client_ctx *cc = NULL, *old_cc;
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#ifdef notyet
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int state;
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#endif
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if ((old_cc = client_current()) != NULL)
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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_new(e->window, screen_fromroot(xattr.root), 1);
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}
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#ifdef notyet /* XXX - possibly, we shouldn't map if
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* the window is withdrawn. */
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if (xu_getstate(cc, &state) == 0 && state == WithdrawnState)
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warnx("WITHDRAWNSTATE for %s", cc->name);
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#endif
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client_ptrwarp(cc);
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xev_register(xev);
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}
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void
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xev_handle_unmapnotify(struct xevent *xev, 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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client_hide(cc);
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xev_register(xev);
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}
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void
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xev_handle_destroynotify(struct xevent *xev, 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, 1, 1);
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xev_register(xev);
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}
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void
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xev_handle_configurerequest(struct xevent *xev, 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 = CCTOSC(cc);
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if (e->value_mask & CWWidth)
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cc->geom.width = e->width;
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if (e->value_mask & CWHeight)
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cc->geom.height = 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 (cc->geom.x == 0 &&
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cc->geom.width >= DisplayWidth(X_Dpy, sc->which))
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cc->geom.x -= cc->bwidth;
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if (cc->geom.y == 0 &&
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cc->geom.height >= DisplayHeight(X_Dpy, sc->which))
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cc->geom.y -= cc->bwidth;
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wc.x = cc->geom.x - cc->bwidth;
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wc.y = cc->geom.y - cc->bwidth;
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wc.width = cc->geom.width + cc->bwidth*2;
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wc.height = cc->geom.height + cc->bwidth*2;
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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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xev_reconfig(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.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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xev_register(xev);
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}
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void
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xev_handle_propertynotify(struct xevent *xev, XEvent *ee)
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{
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XPropertyEvent *e = &ee->xproperty;
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struct client_ctx *cc;
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long tmp;
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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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XGetWMNormalHints(X_Dpy, cc->win, cc->size, &tmp);
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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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default:
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/* do nothing */
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break;
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}
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}
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xev_register(xev);
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}
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void
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xev_reconfig(struct client_ctx *cc)
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{
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XConfigureEvent ce;
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ce.type = ConfigureNotify;
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ce.event = cc->win;
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ce.window = cc->win;
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ce.x = cc->geom.x;
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ce.y = cc->geom.y;
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ce.width = cc->geom.width;
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ce.height = cc->geom.height;
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ce.border_width = cc->bwidth;
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ce.above = None;
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ce.override_redirect = 0;
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XSendEvent(X_Dpy, cc->win, False, StructureNotifyMask, (XEvent *)&ce);
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}
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void
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xev_handle_enternotify(struct xevent *xev, 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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if ((cc = client_find(e->window)) == NULL) {
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/*
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* XXX - later. messes up unclutter. but may be
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* needed when we introduce menu windows and such into
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* the main event loop.
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*/
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#ifdef notyet
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if (e->window != e->root)
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client_nocurrent();
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#endif
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} else
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client_setactive(cc, 1);
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xev_register(xev);
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}
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void
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xev_handle_leavenotify(struct xevent *xev, XEvent *ee)
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{
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client_leave(NULL);
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xev_register(xev);
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}
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/* We can split this into two event handlers. */
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void
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xev_handle_buttonpress(struct xevent *xev, XEvent *ee)
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{
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XButtonEvent *e = &ee->xbutton;
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struct client_ctx *cc;
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struct screen_ctx *sc;
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struct mousebinding *mb;
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sc = screen_fromroot(e->root);
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cc = client_find(e->window);
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/* Ignore caps lock and numlock */
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e->state &= ~(Mod2Mask | LockMask);
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TAILQ_FOREACH(mb, &Conf.mousebindingq, entry) {
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if (e->button == mb->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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goto out;
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if (mb->context == MOUSEBIND_CTX_ROOT) {
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if (e->window != sc->rootwin)
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goto out;
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} else if (mb->context == MOUSEBIND_CTX_WIN) {
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cc = client_find(e->window);
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if (cc == NULL)
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goto out;
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}
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(*mb->callback)(cc, e);
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out:
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xev_register(xev);
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}
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void
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xev_handle_buttonrelease(struct xevent *xev, XEvent *ee)
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{
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struct client_ctx *cc;
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if ((cc = client_current()) != NULL)
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group_sticky_toggle_exit(cc);
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xev_register(xev);
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}
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void
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xev_handle_keypress(struct xevent *xev, XEvent *ee)
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{
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XKeyEvent *e = &ee->xkey;
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struct client_ctx *cc = NULL;
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struct keybinding *kb;
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KeySym keysym, skeysym;
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int modshift;
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keysym = XKeycodeToKeysym(X_Dpy, e->keycode, 0);
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skeysym = XKeycodeToKeysym(X_Dpy, e->keycode, 1);
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/* we don't care about caps lock and numlock here */
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e->state &= ~(LockMask | Mod2Mask);
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TAILQ_FOREACH(kb, &Conf.keybindingq, entry) {
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if (keysym != kb->keysym && skeysym == kb->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->keycode != 0 && kb->keysym == NoSymbol &&
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kb->keycode == e->keycode) || kb->keysym ==
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(modshift == 0 ? keysym : skeysym))
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break;
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}
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if (kb == NULL)
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goto out;
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if ((kb->flags & (KBFLAG_NEEDCLIENT)) &&
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(cc = client_find(e->window)) == NULL &&
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(cc = client_current()) == NULL)
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if (kb->flags & KBFLAG_NEEDCLIENT)
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goto out;
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(*kb->callback)(cc, kb->argument);
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out:
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xev_register(xev);
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}
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/*
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* This is only used for the alt suppression detection.
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*/
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void
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xev_handle_keyrelease(struct xevent *xev, 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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struct client_ctx *cc;
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int keysym;
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sc = screen_fromroot(e->root);
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cc = client_current();
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keysym = XKeycodeToKeysym(X_Dpy, e->keycode, 0);
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if (keysym != XK_Alt_L && keysym != XK_Alt_R)
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goto out;
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sc->altpersist = 0;
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/*
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* XXX - better interface... xevents should not know about
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* how/when to mtf.
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*/
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client_mtf(NULL);
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if (cc != NULL) {
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group_sticky_toggle_exit(cc);
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XUngrabKeyboard(X_Dpy, CurrentTime);
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}
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out:
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xev_register(xev);
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}
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void
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xev_handle_clientmessage(struct xevent *xev, XEvent *ee)
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{
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XClientMessageEvent *e = &ee->xclient;
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Atom xa_wm_change_state;
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struct client_ctx *cc;
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xa_wm_change_state = XInternAtom(X_Dpy, "WM_CHANGE_STATE", False);
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if ((cc = client_find(e->window)) == NULL)
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goto out;
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if (e->message_type == xa_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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out:
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xev_register(xev);
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}
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void
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xev_handle_randr(struct xevent *xev, XEvent *ee)
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{
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XRRScreenChangeNotifyEvent *rev = (XRRScreenChangeNotifyEvent *)ee;
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struct client_ctx *cc;
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struct screen_ctx *sc;
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if ((cc = client_find(rev->window)) != NULL) {
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XRRUpdateConfiguration(ee);
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sc = CCTOSC(cc);
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sc->xmax = rev->width;
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sc->ymax = rev->height;
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screen_init_xinerama(sc);
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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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void
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xev_handle_mapping(struct xevent *xev, XEvent *ee)
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{
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XMappingEvent *e = &ee->xmapping;
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struct keybinding *kb;
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TAILQ_FOREACH(kb, &Conf.keybindingq, entry)
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conf_ungrab(&Conf, kb);
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XRefreshKeyboardMapping(e);
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TAILQ_FOREACH(kb, &Conf.keybindingq, entry)
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conf_grab(&Conf, kb);
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xev_register(xev);
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}
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/*
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* X Event handling
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*/
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static struct xevent_q _xevq, _xevq_putaway;
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static short _xev_q_lock = 0;
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volatile sig_atomic_t _xev_quit = 0;
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void
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xev_init(void)
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{
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TAILQ_INIT(&_xevq);
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TAILQ_INIT(&_xevq_putaway);
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}
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struct xevent *
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xev_new(Window *win, Window *root,
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int type, void (*cb)(struct xevent *, XEvent *), void *arg)
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{
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struct xevent *xev;
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XMALLOC(xev, struct xevent);
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xev->xev_win = win;
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xev->xev_root = root;
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xev->xev_type = type;
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xev->xev_cb = cb;
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xev->xev_arg = arg;
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return (xev);
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}
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void
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xev_register(struct xevent *xev)
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{
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struct xevent_q *xq;
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xq = _xev_q_lock ? &_xevq_putaway : &_xevq;
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TAILQ_INSERT_TAIL(xq, xev, entry);
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}
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void
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_xev_reincorporate(void)
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{
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struct xevent *xev;
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while ((xev = TAILQ_FIRST(&_xevq_putaway)) != NULL) {
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TAILQ_REMOVE(&_xevq_putaway, xev, entry);
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TAILQ_INSERT_TAIL(&_xevq, xev, entry);
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}
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}
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void
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xev_handle_expose(struct xevent *xev, 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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xev_register(xev);
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}
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#define ASSIGN(xtype) do { \
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root = e. xtype .root; \
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win = e. xtype .window; \
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} while (0)
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#define ASSIGN1(xtype) do { \
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win = e. xtype .window; \
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} while (0)
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void
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xev_loop(void)
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{
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Window win, root;
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XEvent e;
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struct xevent *xev = NULL, *nextxev;
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int type;
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while (_xev_quit == 0) {
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#ifdef DIAGNOSTIC
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if (TAILQ_EMPTY(&_xevq))
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errx(1, "X event queue empty");
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#endif
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XNextEvent(X_Dpy, &e);
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type = e.type;
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win = root = 0;
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switch (type) {
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case MapRequest:
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ASSIGN1(xmaprequest);
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break;
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case UnmapNotify:
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ASSIGN1(xunmap);
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break;
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case ConfigureRequest:
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ASSIGN1(xconfigurerequest);
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break;
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case PropertyNotify:
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ASSIGN1(xproperty);
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break;
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case EnterNotify:
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case LeaveNotify:
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ASSIGN(xcrossing);
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break;
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case ButtonPress:
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ASSIGN(xbutton);
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break;
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case ButtonRelease:
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ASSIGN(xbutton);
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break;
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case KeyPress:
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case KeyRelease:
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ASSIGN(xkey);
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break;
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case DestroyNotify:
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ASSIGN1(xdestroywindow);
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break;
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case ClientMessage:
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ASSIGN1(xclient);
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break;
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default:
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if (e.type == Randr_ev)
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xev_handle_randr(xev, &e);
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break;
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}
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/*
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* Now, search for matches, and call each of them.
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*/
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_xev_q_lock = 1;
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for (xev = TAILQ_FIRST(&_xevq); xev != NULL; xev = nextxev) {
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nextxev = TAILQ_NEXT(xev, entry);
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if ((type != xev->xev_type && xev->xev_type != 0) ||
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(xev->xev_win != NULL && win != *xev->xev_win) ||
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(xev->xev_root != NULL && root != *xev->xev_root))
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continue;
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TAILQ_REMOVE(&_xevq, xev, entry);
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(*xev->xev_cb)(xev, &e);
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}
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_xev_q_lock = 0;
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_xev_reincorporate();
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}
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}
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#undef ASSIGN
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#undef ASSIGN1
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