several changes, new stuff
[dwm.git] / event.c
1 /*
2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
4 */
5
6 #include <fcntl.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include <X11/keysym.h>
10 #include <X11/Xatom.h>
11
12 #include "wm.h"
13
14 /* local functions */
15 static void configurerequest(XEvent *e);
16 static void destroynotify(XEvent *e);
17 static void enternotify(XEvent *e);
18 static void leavenotify(XEvent *e);
19 static void expose(XEvent *e);
20 static void keymapnotify(XEvent *e);
21 static void maprequest(XEvent *e);
22 static void propertynotify(XEvent *e);
23 static void unmapnotify(XEvent *e);
24
25 void (*handler[LASTEvent]) (XEvent *) = {
26 [ConfigureRequest] = configurerequest,
27 [DestroyNotify] = destroynotify,
28 [EnterNotify] = enternotify,
29 [LeaveNotify] = leavenotify,
30 [Expose] = expose,
31 [KeyPress] = keypress,
32 [KeymapNotify] = keymapnotify,
33 [MapRequest] = maprequest,
34 [PropertyNotify] = propertynotify,
35 [UnmapNotify] = unmapnotify
36 };
37
38 unsigned int
39 flush_events(long even_mask)
40 {
41 XEvent ev;
42 unsigned int n = 0;
43 while(XCheckMaskEvent(dpy, even_mask, &ev)) n++;
44 return n;
45 }
46
47 static void
48 configurerequest(XEvent *e)
49 {
50 XConfigureRequestEvent *ev = &e->xconfigurerequest;
51 XWindowChanges wc;
52 Client *c;
53
54 c = getclient(ev->window);
55 ev->value_mask &= ~CWSibling;
56 if(c) {
57 if(ev->value_mask & CWX)
58 c->r[RFloat].x = ev->x;
59 if(ev->value_mask & CWY)
60 c->r[RFloat].y = ev->y;
61 if(ev->value_mask & CWWidth)
62 c->r[RFloat].width = ev->width;
63 if(ev->value_mask & CWHeight)
64 c->r[RFloat].height = ev->height;
65 if(ev->value_mask & CWBorderWidth)
66 c->border = ev->border_width;
67 }
68
69 wc.x = ev->x;
70 wc.y = ev->y;
71 wc.width = ev->width;
72 wc.height = ev->height;
73 wc.border_width = 0;
74 wc.sibling = None;
75 wc.stack_mode = Above;
76 ev->value_mask &= ~CWStackMode;
77 ev->value_mask |= CWBorderWidth;
78 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
79 XFlush(dpy);
80 }
81
82 static void
83 destroynotify(XEvent *e)
84 {
85 Client *c;
86 XDestroyWindowEvent *ev = &e->xdestroywindow;
87
88 if((c = getclient(ev->window)))
89 unmanage(c);
90 }
91
92 static void
93 enternotify(XEvent *e)
94 {
95 XCrossingEvent *ev = &e->xcrossing;
96 Client *c;
97
98 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
99 return;
100
101 if((c = getclient(ev->window)))
102 focus(c);
103 else if(ev->window == root) {
104 sel_screen = True;
105 /*draw_frames();*/
106 }
107 }
108
109 static void
110 leavenotify(XEvent *e)
111 {
112 XCrossingEvent *ev = &e->xcrossing;
113
114 if((ev->window == root) && !ev->same_screen) {
115 sel_screen = True;
116 /*draw_frames();*/
117 }
118 }
119
120 static void
121 expose(XEvent *e)
122 {
123 XExposeEvent *ev = &e->xexpose;
124
125 if(ev->count == 0) {
126 if(ev->window == barwin)
127 draw_bar();
128 }
129 }
130
131 static void
132 keymapnotify(XEvent *e)
133 {
134 update_keys();
135 }
136
137 static void
138 maprequest(XEvent *e)
139 {
140 XMapRequestEvent *ev = &e->xmaprequest;
141 static XWindowAttributes wa;
142
143 if(!XGetWindowAttributes(dpy, ev->window, &wa))
144 return;
145
146 if(wa.override_redirect) {
147 XSelectInput(dpy, ev->window,
148 (StructureNotifyMask | PropertyChangeMask));
149 return;
150 }
151
152 if(!getclient(ev->window))
153 manage(ev->window, &wa);
154 }
155
156 static void
157 propertynotify(XEvent *e)
158 {
159 XPropertyEvent *ev = &e->xproperty;
160 long msize;
161 Client *c;
162
163 if(ev->state == PropertyDelete)
164 return; /* ignore */
165
166 if(ev->atom == wm_atom[WMProtocols]) {
167 c->proto = win_proto(c->win);
168 return;
169 }
170 if((c = getclient(ev->window))) {
171 switch (ev->atom) {
172 default: break;
173 case XA_WM_TRANSIENT_FOR:
174 XGetTransientForHint(dpy, c->win, &c->trans);
175 break;
176 case XA_WM_NORMAL_HINTS:
177 if(!XGetWMNormalHints(dpy, c->win, &c->size, &msize)
178 || !c->size.flags)
179 c->size.flags = PSize;
180 if(c->size.flags & PMinSize && c->size.flags & PMaxSize
181 && c->size.min_width == c->size.max_width
182 && c->size.min_height == c->size.max_height)
183 c->fixedsize = True;
184 else
185 c->fixedsize = False;
186 break;
187 }
188 if(ev->atom == XA_WM_NAME || ev->atom == net_atom[NetWMName]) {
189 update_name(c);
190 }
191 }
192 }
193
194 static void
195 unmapnotify(XEvent *e)
196 {
197 Client *c;
198 XUnmapEvent *ev = &e->xunmap;
199
200 if((c = getclient(ev->window)))
201 unmanage(c);
202 }