Adding alt-tab patch ref. #303
bakkeby
2 years ago
parent
4912e3129a
commit
cc58ad2ef4
@ -0,0 +1,222 @@
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int alttabn; /* move that many clients forward */
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int ntabs; /* number of active clients in tag */
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int isalt;
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Client **altsnext; /* array of all clients in the tag */
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Window alttabwin;
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void
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alttab()
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{
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Monitor *m = selmon;
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/* move to next window */
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if (m->sel && m->sel->snext) {
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alttabn++;
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if (alttabn >= ntabs)
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alttabn = 0; /* reset alttabn */
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focus(altsnext[alttabn]);
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restack(m);
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}
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/* redraw tab */
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XRaiseWindow(dpy, alttabwin);
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drawtab(ntabs, 0, m);
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}
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void
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alttabend()
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{
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Monitor *m = selmon;
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Client *buff;
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int i;
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if (!isalt)
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return;
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/* Move all clients between first and choosen position,
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* one down in stack and put choosen client to the first position
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* so they remain in right order for the next time that alt-tab is used
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*/
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if (ntabs > 1) {
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if (alttabn != 0) { /* if user picked original client do nothing */
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buff = altsnext[alttabn];
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if (alttabn > 1)
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for (i = alttabn; i > 0; i--)
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altsnext[i] = altsnext[i - 1];
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else /* swap them if there are just 2 clients */
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altsnext[alttabn] = altsnext[0];
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altsnext[0] = buff;
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}
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/* restack clients */
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for (i = ntabs - 1; i >= 0; i--) {
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focus(altsnext[i]);
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restack(m);
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}
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free(altsnext); /* free list of clients */
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}
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/* destroy the window */
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isalt = 0;
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ntabs = 0;
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XUnmapWindow(dpy, alttabwin);
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XDestroyWindow(dpy, alttabwin);
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}
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void
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drawtab(int nwins, int first, Monitor *m)
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{
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Client *c;
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int i, h;
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int y = 0;
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int px = m->mx;
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int py = m->my;
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if (first) {
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XSetWindowAttributes wa = {
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.override_redirect = True,
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#if BAR_ALPHA_PATCH
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.background_pixel = 0,
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.border_pixel = 0,
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.colormap = cmap,
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#else
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.background_pixmap = ParentRelative,
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#endif // BAR_ALPHA_PATCH
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.event_mask = ButtonPressMask|ExposureMask
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};
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/* decide position of tabwin */
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if (tabposx == 1)
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px = m->mx + (m->mw / 2) - (maxwtab / 2);
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else if (tabposx == 2)
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px = m->mx + m->mw - maxwtab;
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if (tabposy == 1)
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py = m->my + (m->mh / 2) - (maxhtab / 2);
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else if (tabposy == 2)
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py = m->my + m->mh - maxhtab;
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h = maxhtab;
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#if BAR_ALPHA_PATCH
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alttabwin = XCreateWindow(dpy, root, px, py, maxwtab, maxhtab, 2, depth,
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InputOutput, visual,
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CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &wa);
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#else
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alttabwin = XCreateWindow(dpy, root, px, py, maxwtab, maxhtab, 2, DefaultDepth(dpy, screen),
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CopyFromParent, DefaultVisual(dpy, screen),
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CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
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#endif // BAR_ALPHA_PATCH
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XDefineCursor(dpy, alttabwin, cursor[CurNormal]->cursor);
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XMapRaised(dpy, alttabwin);
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}
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h = maxhtab / ntabs;
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for (i = 0; i < ntabs; i++) { /* draw all clients into tabwin */
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c = altsnext[i];
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if (!ISVISIBLE(c))
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continue;
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if (HIDDEN(c))
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continue;
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drw_setscheme(drw, scheme[c == m->sel ? SchemeSel : SchemeNorm]);
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drw_text(drw, 0, y, maxwtab, h, 0, c->name, 0, 0);
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y += h;
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}
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drw_setscheme(drw, scheme[SchemeNorm]);
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drw_map(drw, alttabwin, 0, 0, maxwtab, maxhtab);
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}
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void
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alttabstart(const Arg *arg)
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{
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Client *c;
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Monitor *m = selmon;
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int grabbed;
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int i;
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altsnext = NULL;
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if (alttabwin)
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alttabend();
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if (isalt == 1) {
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alttabend();
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return;
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}
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isalt = 1;
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alttabn = 0;
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ntabs = 0;
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for (c = m->clients; c; c = c->next) {
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if (!ISVISIBLE(c))
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continue;
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if (HIDDEN(c))
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continue;
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++ntabs;
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}
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if (!ntabs) {
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alttabend();
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return;
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}
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altsnext = (Client **) malloc(ntabs * sizeof(Client *));
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for (i = 0, c = m->stack; c; c = c->snext, i++) {
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if (!ISVISIBLE(c))
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continue;
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if (HIDDEN(c))
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continue;
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altsnext[i] = c;
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}
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drawtab(ntabs, 1, m);
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struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 };
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/* grab keyboard (take all input from keyboard) */
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grabbed = 1;
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for (i = 0; i < 1000; i++) {
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if (XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
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break;
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nanosleep(&ts, NULL);
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if (i == 1000 - 1)
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grabbed = 0;
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}
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XEvent event;
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alttab();
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if (grabbed == 0) {
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alttabend();
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return;
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}
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while (grabbed) {
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XNextEvent(dpy, &event);
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if (event.type == KeyPress || event.type == KeyRelease) {
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if (event.type == KeyRelease && event.xkey.keycode == tabmodkey) /* if mod key is released break cycle */
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break;
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if (event.type == KeyPress) {
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if (event.xkey.keycode == tabcyclekey) { /* if tab is pressed move to the next window */
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alttab();
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}
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}
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}
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}
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c = m->sel;
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alttabend();
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XUngrabKeyboard(dpy, CurrentTime);
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focus(c);
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restack(m);
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}
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@ -0,0 +1,5 @@
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#include <time.h>
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static void drawtab(int nwins, int first, Monitor *m);
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static void alttabstart(const Arg *arg);
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static void alttabend();
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