1 76193d7c 2003-09-30 devnull #include <u.h>
  2 be22ae2d 2004-03-26 devnull #include "x11-inc.h"
  3 76193d7c 2003-09-30 devnull #include <libc.h>
  4 76193d7c 2003-09-30 devnull #include <draw.h>
  5 76193d7c 2003-09-30 devnull #include <cursor.h>
  6 76193d7c 2003-09-30 devnull #include <event.h>
  7 76193d7c 2003-09-30 devnull #include <memdraw.h>
  8 76193d7c 2003-09-30 devnull #include "x11-memdraw.h"
  9 76193d7c 2003-09-30 devnull 
 10 fc7c0c59 2005-01-18 devnull /*
 11 fc7c0c59 2005-01-18 devnull  * Should change this to support etimer and estartfn again.
 12 fc7c0c59 2005-01-18 devnull  * The main eread() would prepare a select mask from the keys
 13 fc7c0c59 2005-01-18 devnull  * and then call select() to wait for input.  Then it would read an
 14 fc7c0c59 2005-01-18 devnull  * event from the readied fd and return it.  Use XCheckWindowEvent
 15 fc7c0c59 2005-01-18 devnull  * to poll the X connection.
 16 fc7c0c59 2005-01-18 devnull  */
 17 fc7c0c59 2005-01-18 devnull 
 18 76193d7c 2003-09-30 devnull ulong
 19 76193d7c 2003-09-30 devnull event(Event *e)
 20 76193d7c 2003-09-30 devnull {
 21 76193d7c 2003-09-30 devnull 	return eread(~0UL, e);
 22 76193d7c 2003-09-30 devnull }
 23 76193d7c 2003-09-30 devnull 
 24 59d7d92e 2003-10-13 devnull static void
 25 59d7d92e 2003-10-13 devnull eflush(void)
 26 59d7d92e 2003-10-13 devnull {
 27 59d7d92e 2003-10-13 devnull 	/* avoid generating a message if there's nothing to show. */
 28 59d7d92e 2003-10-13 devnull 	/* this test isn't perfect, though; could do flushimage(display, 0) then call extract */
 29 59d7d92e 2003-10-13 devnull 	/* also: make sure we don't interfere if we're multiprocessing the display */
 30 59d7d92e 2003-10-13 devnull 	if(display->locking){
 31 59d7d92e 2003-10-13 devnull 		/* if locking is being done by program, this means it can't depend on automatic flush in emouse() etc. */
 32 59d7d92e 2003-10-13 devnull 		if(canqlock(&display->qlock)){
 33 59d7d92e 2003-10-13 devnull 			if(display->bufp > display->buf)
 34 59d7d92e 2003-10-13 devnull 				flushimage(display, 1);
 35 59d7d92e 2003-10-13 devnull 			unlockdisplay(display);
 36 59d7d92e 2003-10-13 devnull 		}
 37 59d7d92e 2003-10-13 devnull 	}else
 38 59d7d92e 2003-10-13 devnull 		if(display->bufp > display->buf)
 39 59d7d92e 2003-10-13 devnull 			flushimage(display, 1);
 40 59d7d92e 2003-10-13 devnull }
 41 59d7d92e 2003-10-13 devnull 
 42 76193d7c 2003-09-30 devnull ulong
 43 76193d7c 2003-09-30 devnull eread(ulong keys, Event *e)
 44 76193d7c 2003-09-30 devnull {
 45 16a70966 2003-11-23 devnull 	int r;
 46 76193d7c 2003-09-30 devnull 	ulong xmask;
 47 76193d7c 2003-09-30 devnull 	XEvent xevent;
 48 76193d7c 2003-09-30 devnull 
 49 76193d7c 2003-09-30 devnull 	xmask = ExposureMask;
 50 76193d7c 2003-09-30 devnull 
 51 59d7d92e 2003-10-13 devnull 	eflush();
 52 59d7d92e 2003-10-13 devnull 
 53 76193d7c 2003-09-30 devnull 	if(keys&Emouse)
 54 76193d7c 2003-09-30 devnull 		xmask |= MouseMask|StructureNotifyMask;
 55 16a70966 2003-11-23 devnull 	if(keys&Ekeyboard){
 56 76193d7c 2003-09-30 devnull 		xmask |= KeyPressMask;
 57 32f69c36 2003-12-11 devnull 		if((r = _xtoplan9kbd(nil)) >= 0){
 58 16a70966 2003-11-23 devnull 			e->kbdc = r;
 59 16a70966 2003-11-23 devnull 			return Ekeyboard;
 60 16a70966 2003-11-23 devnull 		}
 61 16a70966 2003-11-23 devnull 	}
 62 76193d7c 2003-09-30 devnull 
 63 1818ce0f 2005-01-04 devnull 	xmask |= EnterWindowMask|LeaveWindowMask;
 64 1818ce0f 2005-01-04 devnull 
 65 76193d7c 2003-09-30 devnull 	XSelectInput(_x.display, _x.drawable, xmask);
 66 76193d7c 2003-09-30 devnull again:
 67 76193d7c 2003-09-30 devnull 	XWindowEvent(_x.display, _x.drawable, xmask, &xevent);
 68 76193d7c 2003-09-30 devnull 
 69 76193d7c 2003-09-30 devnull 	switch(xevent.type){
 70 76193d7c 2003-09-30 devnull 	case Expose:
 71 32f69c36 2003-12-11 devnull 		_xexpose(&xevent, _x.display);
 72 76193d7c 2003-09-30 devnull 		goto again;
 73 16a70966 2003-11-23 devnull 	case DestroyNotify:
 74 32f69c36 2003-12-11 devnull 		if(_xdestroy(&xevent, _x.display))
 75 16a70966 2003-11-23 devnull 			postnote(PNGROUP, getpgrp(), "hangup");
 76 16a70966 2003-11-23 devnull 		goto again;
 77 76193d7c 2003-09-30 devnull 	case ConfigureNotify:
 78 32f69c36 2003-12-11 devnull 		if(_xconfigure(&xevent, _x.display))
 79 76193d7c 2003-09-30 devnull 			eresized(1);
 80 76193d7c 2003-09-30 devnull 		goto again;
 81 76193d7c 2003-09-30 devnull 	case ButtonPress:
 82 76193d7c 2003-09-30 devnull 	case ButtonRelease:
 83 76193d7c 2003-09-30 devnull 	case MotionNotify:
 84 32f69c36 2003-12-11 devnull 		if(_xtoplan9mouse(_x.display, &xevent, &e->mouse) < 0)
 85 76193d7c 2003-09-30 devnull 			goto again;
 86 76193d7c 2003-09-30 devnull 		return Emouse;
 87 76193d7c 2003-09-30 devnull 	case KeyPress:
 88 32f69c36 2003-12-11 devnull 		e->kbdc = _xtoplan9kbd(&xevent);
 89 76193d7c 2003-09-30 devnull 		if(e->kbdc == -1)
 90 76193d7c 2003-09-30 devnull 			goto again;
 91 76193d7c 2003-09-30 devnull 		return Ekeyboard;
 92 76193d7c 2003-09-30 devnull 	default:
 93 8e06ea1b 2005-09-15 devnull 		goto again;
 94 76193d7c 2003-09-30 devnull 	}
 95 76193d7c 2003-09-30 devnull }
 96 76193d7c 2003-09-30 devnull 
 97 76193d7c 2003-09-30 devnull void
 98 76193d7c 2003-09-30 devnull einit(ulong keys)
 99 76193d7c 2003-09-30 devnull {
100 76193d7c 2003-09-30 devnull 	keys &= ~(Emouse|Ekeyboard);
101 76193d7c 2003-09-30 devnull 	if(keys){
102 76193d7c 2003-09-30 devnull 		fprint(2, "unknown keys in einit\n");
103 76193d7c 2003-09-30 devnull 		abort();
104 76193d7c 2003-09-30 devnull 	}
105 76193d7c 2003-09-30 devnull }
106 76193d7c 2003-09-30 devnull 
107 76193d7c 2003-09-30 devnull int
108 76193d7c 2003-09-30 devnull ekbd(void)
109 76193d7c 2003-09-30 devnull {
110 76193d7c 2003-09-30 devnull 	Event e;
111 76193d7c 2003-09-30 devnull 
112 76193d7c 2003-09-30 devnull 	eread(Ekeyboard, &e);
113 76193d7c 2003-09-30 devnull 	return e.kbdc;
114 76193d7c 2003-09-30 devnull }
115 76193d7c 2003-09-30 devnull 
116 76193d7c 2003-09-30 devnull Mouse
117 76193d7c 2003-09-30 devnull emouse(void)
118 76193d7c 2003-09-30 devnull {
119 76193d7c 2003-09-30 devnull 	Event e;
120 76193d7c 2003-09-30 devnull 
121 76193d7c 2003-09-30 devnull 	eread(Emouse, &e);
122 76193d7c 2003-09-30 devnull 	return e.mouse;
123 76193d7c 2003-09-30 devnull }
124 76193d7c 2003-09-30 devnull 
125 76193d7c 2003-09-30 devnull int
126 76193d7c 2003-09-30 devnull ecanread(ulong keys)
127 76193d7c 2003-09-30 devnull {
128 76193d7c 2003-09-30 devnull 	int can;
129 76193d7c 2003-09-30 devnull 
130 76193d7c 2003-09-30 devnull 	can = 0;
131 76193d7c 2003-09-30 devnull 	if(keys&Emouse)
132 76193d7c 2003-09-30 devnull 		can |= ecanmouse();
133 76193d7c 2003-09-30 devnull 	if(keys&Ekeyboard)
134 76193d7c 2003-09-30 devnull 		can |= ecankbd();
135 76193d7c 2003-09-30 devnull 	return can;
136 76193d7c 2003-09-30 devnull }
137 76193d7c 2003-09-30 devnull 
138 76193d7c 2003-09-30 devnull int
139 76193d7c 2003-09-30 devnull ecanmouse(void)
140 76193d7c 2003-09-30 devnull {
141 76193d7c 2003-09-30 devnull 	XEvent xe;
142 76193d7c 2003-09-30 devnull 	Mouse m;
143 76193d7c 2003-09-30 devnull 
144 59d7d92e 2003-10-13 devnull 	eflush();
145 76193d7c 2003-09-30 devnull again:
146 76193d7c 2003-09-30 devnull 	if(XCheckWindowEvent(_x.display, _x.drawable, MouseMask, &xe)){
147 32f69c36 2003-12-11 devnull 		if(_xtoplan9mouse(_x.display, &xe, &m) < 0)
148 76193d7c 2003-09-30 devnull 			goto again;
149 76193d7c 2003-09-30 devnull 		XPutBackEvent(_x.display, &xe);
150 76193d7c 2003-09-30 devnull 		return 1;
151 76193d7c 2003-09-30 devnull 	}
152 76193d7c 2003-09-30 devnull 	return 0;
153 76193d7c 2003-09-30 devnull }
154 76193d7c 2003-09-30 devnull 
155 76193d7c 2003-09-30 devnull int
156 76193d7c 2003-09-30 devnull ecankbd(void)
157 76193d7c 2003-09-30 devnull {
158 76193d7c 2003-09-30 devnull 	XEvent xe;
159 16a70966 2003-11-23 devnull 	int r;
160 76193d7c 2003-09-30 devnull 
161 59d7d92e 2003-10-13 devnull 	eflush();
162 32f69c36 2003-12-11 devnull 	if((r = _xtoplan9kbd(nil)) >= 0){
163 32f69c36 2003-12-11 devnull 		_xtoplan9kbd((XEvent*)-1);
164 16a70966 2003-11-23 devnull 		return 1;
165 16a70966 2003-11-23 devnull 	}
166 76193d7c 2003-09-30 devnull again:
167 76193d7c 2003-09-30 devnull 	if(XCheckWindowEvent(_x.display, _x.drawable, KeyPressMask, &xe)){
168 32f69c36 2003-12-11 devnull 		if(_xtoplan9kbd(&xe) == -1)
169 76193d7c 2003-09-30 devnull 			goto again;
170 76193d7c 2003-09-30 devnull 		XPutBackEvent(_x.display, &xe);
171 76193d7c 2003-09-30 devnull 		return 1;
172 76193d7c 2003-09-30 devnull 	}
173 76193d7c 2003-09-30 devnull 	return 0;
174 76193d7c 2003-09-30 devnull }
175 76193d7c 2003-09-30 devnull 
176 76193d7c 2003-09-30 devnull void
177 76193d7c 2003-09-30 devnull emoveto(Point p)
178 76193d7c 2003-09-30 devnull {
179 32f69c36 2003-12-11 devnull 	_xmoveto(p);
180 76193d7c 2003-09-30 devnull }
181 76193d7c 2003-09-30 devnull 
182 59d7d92e 2003-10-13 devnull void
183 59d7d92e 2003-10-13 devnull esetcursor(Cursor *c)
184 59d7d92e 2003-10-13 devnull {
185 32f69c36 2003-12-11 devnull 	_xsetcursor(c);
186 59d7d92e 2003-10-13 devnull }
187 59d7d92e 2003-10-13 devnull