1 #include "x11-inc.h"
2 
3 #include <u.h>
4 #include <libc.h>
5 #include <draw.h>
6 #include <cursor.h>
7 #include <event.h>
8 
9 #include <memdraw.h>
10 #include "x11-memdraw.h"
11 
12 ulong
13 event(Event *e)
14 {
15 	return eread(~0UL, e);
16 }
17 
18 ulong
19 eread(ulong keys, Event *e)
20 {
21 	ulong xmask;
22 	XEvent xevent;
23 
24 	xmask = ExposureMask;
25 
26 	if(keys&Emouse)
27 		xmask |= MouseMask|StructureNotifyMask;
28 	if(keys&Ekeyboard)
29 		xmask |= KeyPressMask;
30 
31 	XSelectInput(_x.display, _x.drawable, xmask);
32 again:
33 	XWindowEvent(_x.display, _x.drawable, xmask, &xevent);
34 
35 	switch(xevent.type){
36 	case Expose:
37 		xexpose(&xevent, _x.display);
38 		goto again;
39 	case ConfigureNotify:
40 		if(xconfigure(&xevent, _x.display))
41 			eresized(1);
42 		goto again;
43 	case ButtonPress:
44 	case ButtonRelease:
45 	case MotionNotify:
46 		if(xtoplan9mouse(&xevent, &e->mouse) < 0)
47 			goto again;
48 		return Emouse;
49 	case KeyPress:
50 		e->kbdc = xtoplan9kbd(&xevent);
51 		if(e->kbdc == -1)
52 			goto again;
53 		return Ekeyboard;
54 	default:
55 		return 0;
56 	}
57 }
58 
59 void
60 einit(ulong keys)
61 {
62 	keys &= ~(Emouse|Ekeyboard);
63 	if(keys){
64 		fprint(2, "unknown keys in einit\n");
65 		abort();
66 	}
67 }
68 
69 int
70 ekbd(void)
71 {
72 	Event e;
73 
74 	eread(Ekeyboard, &e);
75 	return e.kbdc;
76 }
77 
78 Mouse
79 emouse(void)
80 {
81 	Event e;
82 
83 	eread(Emouse, &e);
84 	return e.mouse;
85 }
86 
87 int
88 ecanread(ulong keys)
89 {
90 	int can;
91 
92 	can = 0;
93 	if(keys&Emouse)
94 		can |= ecanmouse();
95 	if(keys&Ekeyboard)
96 		can |= ecankbd();
97 	return can;
98 }
99 
100 int
101 ecanmouse(void)
102 {
103 	XEvent xe;
104 	Mouse m;
105 
106 again:
107 	if(XCheckWindowEvent(_x.display, _x.drawable, MouseMask, &xe)){
108 		if(xtoplan9mouse(&xe, &m) < 0)
109 			goto again;
110 		XPutBackEvent(_x.display, &xe);
111 		return 1;
112 	}
113 	return 0;
114 }
115 
116 int
117 ecankbd(void)
118 {
119 	XEvent xe;
120 
121 again:
122 	if(XCheckWindowEvent(_x.display, _x.drawable, KeyPressMask, &xe)){
123 		if(xtoplan9kbd(&xe) == -1)
124 			goto again;
125 		XPutBackEvent(_x.display, &xe);
126 		return 1;
127 	}
128 	return 0;
129 }
130 
131 void
132 emoveto(Point p)
133 {
134 	xmoveto(p);
135 }
136