1/*
2 * Window de/iconification handling
3 */
4
5#include "ctwm.h"
6
7#include <stdlib.h>
8#include <sys/time.h>
9
10#include <X11/extensions/shape.h>
11
12#include "events.h"
13#include "functions.h"
14#include "iconmgr.h"
15#include "icons.h"
16#include "list.h"
17#include "otp.h"
18#include "screen.h"
19#include "util.h"
20#include "vscreen.h"
21#include "win_iconify.h"
22#include "win_ops.h"
23#include "win_utils.h"
24#include "workspace_manager.h"
25
26
27/* Animations */
28static void MosaicFade(TwmWindow *tmp_win, Window blanket);
29static void ZoomInWindow(TwmWindow *tmp_win, Window blanket);
30static void ZoomOutWindow(TwmWindow *tmp_win, Window blanket);
31static void FadeWindow(TwmWindow *tmp_win, Window blanket);
32static void SweepWindow(TwmWindow *tmp_win, Window blanket);
33
34/* De/iconify utils */
35static void Zoom(Window wf, Window wt);
36static void ReMapOne(TwmWindow *t, TwmWindow *leader);
37static void waitamoment(float timeout);
38
39
40
41/*
42 * The main routines for iconifying...
43 */
44void
45Iconify(TwmWindow *tmp_win, int def_x, int def_y)
46{
47	TwmWindow *t;
48	bool iconify;
49	long eventMask;
50	WList *wl;
51	Window leader = (Window) - 1;
52	Window blanket = (Window) - 1;
53
54	iconify = (!tmp_win->iconify_by_unmapping);
55	t = NULL;
56	if(tmp_win->istransient) {
57		leader = tmp_win->transientfor;
58		t = GetTwmWindow(leader);
59	}
60	else if((leader = tmp_win->group) != 0 && leader != tmp_win->w) {
61		t = GetTwmWindow(leader);
62	}
63	if(t && t->icon_on) {
64		iconify = false;
65	}
66	if(iconify) {
67		if(!tmp_win->icon || !tmp_win->icon->w) {
68			CreateIconWindow(tmp_win, def_x, def_y);
69		}
70		else {
71			IconUp(tmp_win);
72		}
73		if(visible(tmp_win)) {
74			OtpRaise(tmp_win, IconWin);
75			XMapWindow(dpy, tmp_win->icon->w);
76		}
77	}
78	if(tmp_win->iconmanagerlist) {
79		for(wl = tmp_win->iconmanagerlist; wl != NULL; wl = wl->nextv) {
80			XMapWindow(dpy, wl->icon);
81		}
82	}
83
84	/* Don't mask anything yet, just get the current for various uses */
85	eventMask = mask_out_event(tmp_win->w, 0);
86
87	/* iconify transients and window group first */
88	UnmapTransients(tmp_win, iconify, eventMask);
89
90	if(iconify) {
91		Zoom(tmp_win->frame, tmp_win->icon->w);
92	}
93
94	/*
95	 * Prevent the receipt of an UnmapNotify, since that would
96	 * cause a transition to the Withdrawn state.
97	 */
98	tmp_win->mapped = false;
99
100	if((Scr->IconifyStyle != ICONIFY_NORMAL) && !Scr->WindowMask) {
101		XWindowAttributes winattrs;
102		XSetWindowAttributes attr;
103
104		XGetWindowAttributes(dpy, tmp_win->frame, &winattrs);
105		blanket = XCreateWindow(dpy, Scr->Root, winattrs.x, winattrs.y,
106		                        winattrs.width, winattrs.height, 0,
107		                        CopyFromParent, CopyFromParent,
108		                        CopyFromParent, None, &attr);
109		XMapWindow(dpy, blanket);
110	}
111
112	mask_out_event_mask(tmp_win->w, StructureNotifyMask, eventMask);
113	XUnmapWindow(dpy, tmp_win->w);
114	XUnmapWindow(dpy, tmp_win->frame);
115	restore_mask(tmp_win->w, eventMask);
116
117	SetMapStateProp(tmp_win, IconicState);
118
119	if((Scr->IconifyStyle != ICONIFY_NORMAL) && !Scr->WindowMask) {
120		switch(Scr->IconifyStyle) {
121			case ICONIFY_MOSAIC:
122				MosaicFade(tmp_win, blanket);
123				break;
124			case ICONIFY_ZOOMIN:
125				ZoomInWindow(tmp_win, blanket);
126				break;
127			case ICONIFY_ZOOMOUT:
128				ZoomOutWindow(tmp_win, blanket);
129				break;
130			case ICONIFY_FADE:
131				FadeWindow(tmp_win, blanket);
132				break;
133			case ICONIFY_SWEEP:
134				SweepWindow(tmp_win, blanket);
135				break;
136			case ICONIFY_NORMAL:
137				/* Placate insufficiently smart clang warning */
138				break;
139		}
140		XDestroyWindow(dpy, blanket);
141	}
142	if(tmp_win == Scr->Focus) {
143		SetFocus(NULL, EventTime);
144		if(! Scr->ClickToFocus) {
145			Scr->FocusRoot = true;
146		}
147	}
148	tmp_win->isicon = true;
149	tmp_win->icon_on = iconify;
150	WMapIconify(tmp_win);
151	if(! Scr->WindowMask && Scr->IconifyFunction.func != 0) {
152		char *action;
153		XEvent event;
154
155		action = Scr->IconifyFunction.item ? Scr->IconifyFunction.item->action : NULL;
156		ExecuteFunction(Scr->IconifyFunction.func, action,
157		                (Window) 0, tmp_win, &event, C_ROOT, false);
158	}
159	XSync(dpy, 0);
160}
161
162
163/*
164 * ... and its complement
165 */
166void
167DeIconify(TwmWindow *tmp_win)
168{
169	TwmWindow *t = tmp_win;
170	bool isicon = false;
171
172	/* de-iconify the main window */
173	if(Scr->WindowMask) {
174		XRaiseWindow(dpy, Scr->WindowMask);
175	}
176	if(tmp_win->isicon) {
177		isicon = true;
178		if(tmp_win->icon_on && tmp_win->icon && tmp_win->icon->w) {
179			Zoom(tmp_win->icon->w, tmp_win->frame);
180		}
181		else if(tmp_win->group != (Window) 0) {
182			TwmWindow *tmpt = GetTwmWindow(tmp_win->group);
183			if(tmpt) {
184				t = tmpt;
185				if(t->icon_on && t->icon && t->icon->w) {
186					Zoom(t->icon->w, tmp_win->frame);
187				}
188			}
189		}
190	}
191
192	ReMapOne(tmp_win, t);
193
194	if(isicon &&
195	                (Scr->WarpCursor ||
196	                 LookInList(Scr->WarpCursorL, tmp_win->name, &tmp_win->class))) {
197		WarpToWindow(tmp_win, false);
198	}
199
200	/* now de-iconify any window group transients */
201	ReMapTransients(tmp_win);
202
203	if(! Scr->WindowMask && Scr->DeIconifyFunction.func != 0) {
204		char *action;
205		XEvent event;
206
207		action = Scr->DeIconifyFunction.item ?
208		         Scr->DeIconifyFunction.item->action : NULL;
209		ExecuteFunction(Scr->DeIconifyFunction.func, action,
210		                (Window) 0, tmp_win, &event, C_ROOT, false);
211	}
212	XSync(dpy, 0);
213}
214
215
216
217/*
218 * Animations for popping windows around.
219 */
220static void
221MosaicFade(TwmWindow *tmp_win, Window blanket)
222{
223	int         srect;
224	int         i, j, nrects;
225	Pixmap      mask;
226	GC          gc;
227	XGCValues   gcv;
228	XRectangle *rectangles;
229	int  width = tmp_win->frame_width;
230	int height = tmp_win->frame_height;
231
232	srect = (width < height) ? (width / 20) : (height / 20);
233	mask  = XCreatePixmap(dpy, blanket, width, height, 1);
234
235	gcv.foreground = 1;
236	gc = XCreateGC(dpy, mask, GCForeground, &gcv);
237	XFillRectangle(dpy, mask, gc, 0, 0, width, height);
238	gcv.function = GXclear;
239	XChangeGC(dpy, gc, GCFunction, &gcv);
240
241	nrects = ((width * height) / (srect * srect)) / 10;
242	rectangles = calloc(nrects, sizeof(XRectangle));
243	for(j = 0; j < nrects; j++) {
244		rectangles [j].width  = srect;
245		rectangles [j].height = srect;
246	}
247	for(i = 0; i < 10; i++) {
248		for(j = 0; j < nrects; j++) {
249			rectangles [j].x = ((lrand48() %  width) / srect) * srect;
250			rectangles [j].y = ((lrand48() % height) / srect) * srect;
251		}
252		XFillRectangles(dpy, mask, gc, rectangles, nrects);
253		XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
254		XFlush(dpy);
255		waitamoment(0.020);
256	}
257	XFreePixmap(dpy, mask);
258	XFreeGC(dpy, gc);
259	free(rectangles);
260}
261
262
263static void
264ZoomInWindow(TwmWindow *tmp_win, Window blanket)
265{
266	Pixmap        mask;
267	GC            gc, gcn;
268	XGCValues     gcv;
269
270	int i, nsteps = 20;
271	int w = tmp_win->frame_width;
272	int h = tmp_win->frame_height;
273	int step = (MAX(w, h)) / (2.0 * nsteps);
274
275	mask = XCreatePixmap(dpy, blanket, w, h, 1);
276	gcv.foreground = 1;
277	gc  = XCreateGC(dpy, mask, GCForeground, &gcv);
278	gcv.function = GXclear;
279	gcn = XCreateGC(dpy, mask, GCForeground | GCFunction, &gcv);
280
281	for(i = 0; i < nsteps; i++) {
282		XFillRectangle(dpy, mask, gcn, 0, 0, w, h);
283		XFillArc(dpy, mask, gc, (w / 2) - ((nsteps - i) * step),
284		         (h / 2) - ((nsteps - i) * step),
285		         2 * (nsteps - i) * step,
286		         2 * (nsteps - i) * step,
287		         0, 360 * 64);
288		XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
289		XFlush(dpy);
290		waitamoment(0.020);
291	}
292}
293
294
295static void
296ZoomOutWindow(TwmWindow *tmp_win, Window blanket)
297{
298	Pixmap        mask;
299	GC            gc;
300	XGCValues     gcv;
301
302	int i, nsteps = 20;
303	int w = tmp_win->frame_width;
304	int h = tmp_win->frame_height;
305	int step = (MAX(w, h)) / (2.0 * nsteps);
306
307	mask  = XCreatePixmap(dpy, blanket, w, h, 1);
308	gcv.foreground = 1;
309	gc = XCreateGC(dpy, mask, GCForeground, &gcv);
310	XFillRectangle(dpy, mask, gc, 0, 0, w, h);
311	gcv.function = GXclear;
312	XChangeGC(dpy, gc, GCFunction, &gcv);
313
314	for(i = 0; i < nsteps; i++) {
315		XFillArc(dpy, mask, gc, (w / 2) - (i * step),
316		         (h / 2) - (i * step),
317		         2 * i * step,
318		         2 * i * step,
319		         0, 360 * 64);
320		XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
321		XFlush(dpy);
322		waitamoment(0.020);
323	}
324}
325
326
327void
328FadeWindow(TwmWindow *tmp_win, Window blanket)
329{
330	Pixmap        mask, stipple;
331	GC            gc;
332	XGCValues     gcv;
333	static unsigned char stipple_bits[] = { 0x0F, 0x0F,
334	                                        0xF0, 0xF0,
335	                                        0x0F, 0x0F,
336	                                        0xF0, 0xF0,
337	                                        0x0F, 0x0F,
338	                                        0xF0, 0xF0,
339	                                        0x0F, 0x0F,
340	                                        0xF0, 0xF0,
341	                                      };
342	int w = tmp_win->frame_width;
343	int h = tmp_win->frame_height;
344
345	stipple = XCreateBitmapFromData(dpy, blanket, (char *)stipple_bits, 8, 8);
346	mask    = XCreatePixmap(dpy, blanket, w, h, 1);
347	gcv.background = 0;
348	gcv.foreground = 1;
349	gcv.stipple    = stipple;
350	gcv.fill_style = FillOpaqueStippled;
351	gc = XCreateGC(dpy, mask, GCBackground | GCForeground | GCFillStyle | GCStipple,
352	               &gcv);
353	XFillRectangle(dpy, mask, gc, 0, 0, w, h);
354
355	XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
356	XFlush(dpy);
357	waitamoment(0.10);
358	XFreePixmap(dpy, stipple);
359	XFlush(dpy);
360}
361
362
363static void
364SweepWindow(TwmWindow *tmp_win, Window blanket)
365{
366	float step = 0.0;
367	int i, nsteps = 20;
368	int dir = 0, dist = tmp_win->frame_x, dist1;
369
370	dist1 = tmp_win->frame_y;
371	if(dist1 < dist) {
372		dir = 1;
373		dist = dist1;
374	}
375	dist1 = tmp_win->vs->w - (tmp_win->frame_x + tmp_win->frame_width);
376	if(dist1 < dist) {
377		dir = 2;
378		dist = dist1;
379	}
380	dist1 = tmp_win->vs->h - (tmp_win->frame_y + tmp_win->frame_height);
381	if(dist1 < dist) {
382		dir = 3;
383		dist = dist1;
384		ALLOW_DEAD_STORE(dist);
385	}
386
387	switch(dir) {
388		case 0:
389			step = tmp_win->frame_x + tmp_win->frame_width;
390			break;
391		case 1:
392			step = tmp_win->frame_y + tmp_win->frame_height;
393			break;
394		case 2:
395			step = tmp_win->vs->w - tmp_win->frame_x;
396			break;
397		case 3:
398			step = tmp_win->vs->h - tmp_win->frame_y;
399			break;
400	}
401	step /= (float) nsteps;
402	step /= (float) nsteps;
403	for(i = 0; i < 20; i++) {
404		int x = tmp_win->frame_x;
405		int y = tmp_win->frame_y;
406		switch(dir) {
407			case 0:
408				x -= i * i * step;
409				break;
410			case 1:
411				y -= i * i * step;
412				break;
413			case 2:
414				x += i * i * step;
415				break;
416			case 3:
417				y += i * i * step;
418				break;
419		}
420		XMoveWindow(dpy, blanket, x, y);
421		XFlush(dpy);
422		waitamoment(0.020);
423	}
424}
425
426
427
428/*
429 * Utils used by various bits above
430 */
431
432/***********************************************************************
433 *
434 *  Procedure:
435 *      Zoom - zoom in or out of an icon
436 *
437 *  Inputs:
438 *      wf      - window to zoom from
439 *      wt      - window to zoom to
440 *
441 ***********************************************************************
442 */
443static void
444Zoom(Window wf, Window wt)
445{
446	int fx, fy, tx, ty;                 /* from, to */
447	unsigned int fw, fh, tw, th;        /* from, to */
448	long dx, dy, dw, dh;
449	long z;
450	int j;
451
452	if((Scr->IconifyStyle != ICONIFY_NORMAL) || !Scr->DoZoom
453	                || Scr->ZoomCount < 1) {
454		return;
455	}
456
457	if(wf == None || wt == None) {
458		return;
459	}
460
461	XGetGeometry(dpy, wf, &JunkRoot, &fx, &fy, &fw, &fh, &JunkBW, &JunkDepth);
462	XGetGeometry(dpy, wt, &JunkRoot, &tx, &ty, &tw, &th, &JunkBW, &JunkDepth);
463
464	dx = (long) tx - (long) fx; /* going from -> to */
465	dy = (long) ty - (long) fy; /* going from -> to */
466	dw = (long) tw - (long) fw; /* going from -> to */
467	dh = (long) th - (long) fh; /* going from -> to */
468	z = (long)(Scr->ZoomCount + 1);
469
470	for(j = 0; j < 2; j++) {
471		long i;
472
473		XDrawRectangle(dpy, Scr->Root, Scr->DrawGC, fx, fy, fw, fh);
474		for(i = 1; i < z; i++) {
475			int x = fx + (int)((dx * i) / z);
476			int y = fy + (int)((dy * i) / z);
477			unsigned width = (unsigned)(((long) fw) + (dw * i) / z);
478			unsigned height = (unsigned)(((long) fh) + (dh * i) / z);
479
480			XDrawRectangle(dpy, Scr->Root, Scr->DrawGC,
481			               x, y, width, height);
482		}
483		XDrawRectangle(dpy, Scr->Root, Scr->DrawGC, tx, ty, tw, th);
484	}
485}
486
487
488static void
489ReMapOne(TwmWindow *t, TwmWindow *leader)
490{
491	if(t->icon_on) {
492		Zoom(t->icon->w, t->frame);
493	}
494	else if(leader->icon) {
495		Zoom(leader->icon->w, t->frame);
496	}
497
498	if(!t->squeezed) {
499		XMapWindow(dpy, t->w);
500	}
501	t->mapped = true;
502#ifdef CAPTIVE
503	if(false && Scr->Root != Scr->CaptiveRoot) {        /* XXX dubious test */
504		ReparentWindow(dpy, t, WinWin, Scr->Root, t->frame_x, t->frame_y);
505	}
506#endif
507	if(!Scr->NoRaiseDeicon) {
508		OtpRaise(t, WinWin);
509	}
510	XMapWindow(dpy, t->frame);
511	SetMapStateProp(t, NormalState);
512
513	if(t->icon && t->icon->w) {
514		XUnmapWindow(dpy, t->icon->w);
515		IconDown(t);
516		if(Scr->ShrinkIconTitles) {
517			t->icon->title_shrunk = true;
518		}
519	}
520	if(t->iconmanagerlist) {
521		WList *wl;
522
523		for(wl = t->iconmanagerlist; wl != NULL; wl = wl->nextv) {
524			XUnmapWindow(dpy, wl->icon);
525		}
526	}
527	t->isicon = false;
528	t->icon_on = false;
529	WMapDeIconify(t);
530}
531
532
533/*
534 * Mostly internal util of iconification, but squeezing code needs it
535 * too.
536 */
537void
538ReMapTransients(TwmWindow *tmp_win)
539{
540	TwmWindow *t;
541
542	/* find t such that it is a transient or group member window */
543	for(t = Scr->FirstWindow; t != NULL; t = t->next) {
544		if(t != tmp_win &&
545		                ((t->istransient && t->transientfor == tmp_win->w) ||
546		                 (t->group == tmp_win->w && t->isicon))) {
547			ReMapOne(t, tmp_win);
548		}
549	}
550}
551
552
553/*
554 * Ditto previous note about squeezing.
555 */
556void
557UnmapTransients(TwmWindow *tmp_win, bool iconify, long eventMask)
558{
559	TwmWindow *t;
560
561	for(t = Scr->FirstWindow; t != NULL; t = t->next) {
562		if(t != tmp_win &&
563		                ((t->istransient && t->transientfor == tmp_win->w) ||
564		                 t->group == tmp_win->w)) {
565			if(iconify) {
566				if(t->icon_on) {
567					Zoom(t->icon->w, tmp_win->icon->w);
568				}
569				else if(tmp_win->icon) {
570					Zoom(t->frame, tmp_win->icon->w);
571				}
572			}
573
574			/*
575			 * Prevent the receipt of an UnmapNotify, since that would
576			 * cause a transition to the Withdrawn state.
577			 */
578			t->mapped = false;
579
580			/*
581			 * Note that here, we're setting masks relative to what we
582			 * were passed, which is that of the window these are
583			 * transient for, rather than relative to these windows'
584			 * current masks.  I believe in practice it's the same thing,
585			 * and it saves getting attributes on each for masking.
586			 * Still, a little odd...
587			 */
588			mask_out_event_mask(t->w, StructureNotifyMask, eventMask);
589			XUnmapWindow(dpy, t->w);
590			XUnmapWindow(dpy, t->frame);
591			restore_mask(t->w, eventMask);
592
593			if(t->icon && t->icon->w) {
594				XUnmapWindow(dpy, t->icon->w);
595			}
596			SetMapStateProp(t, IconicState);
597			if(t == Scr->Focus) {
598				SetFocus(NULL, EventTime);
599				if(! Scr->ClickToFocus) {
600					Scr->FocusRoot = true;
601				}
602			}
603			if(t->iconmanagerlist) {
604				XMapWindow(dpy, t->iconmanagerlist->icon);
605			}
606			t->isicon = true;
607			t->icon_on = false;
608			WMapIconify(t);
609		}
610	}
611}
612
613
614static void
615waitamoment(float timeout)
616{
617	struct timeval timeoutstruct;
618	int usec = timeout * 1000000;
619	timeoutstruct.tv_usec = usec % (unsigned long) 1000000;
620	timeoutstruct.tv_sec  = usec / (unsigned long) 1000000;
621	select(0, NULL, NULL, NULL, &timeoutstruct);
622}
623