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view event.c @ 20:4560e0882c1d

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made code more readable
author Anselm R. Garbe <garbeam@wmii.de>
date Tue, 11 Jul 2006 22:49:09 +0200
parents b5510d0c6d43
children 3ef108a5ca0a
line source
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 buttonpress(XEvent *e);
16 static void configurerequest(XEvent *e);
17 static void destroynotify(XEvent *e);
18 static void enternotify(XEvent *e);
19 static void leavenotify(XEvent *e);
20 static void expose(XEvent *e);
21 static void keymapnotify(XEvent *e);
22 static void maprequest(XEvent *e);
23 static void propertynotify(XEvent *e);
24 static void unmapnotify(XEvent *e);
25
26 void (*handler[LASTEvent]) (XEvent *) = {
27 [ButtonPress] = buttonpress,
28 [ConfigureRequest] = configurerequest,
29 [DestroyNotify] = destroynotify,
30 [EnterNotify] = enternotify,
31 [LeaveNotify] = leavenotify,
32 [Expose] = expose,
33 [KeyPress] = keypress,
34 [KeymapNotify] = keymapnotify,
35 [MapRequest] = maprequest,
36 [PropertyNotify] = propertynotify,
37 [UnmapNotify] = unmapnotify
38 };
39
40 unsigned int
41 discard_events(long even_mask)
42 {
43 XEvent ev;
44 unsigned int n = 0;
45 while(XCheckMaskEvent(dpy, even_mask, &ev)) n++;
46 return n;
47 }
48
49 static void
50 buttonpress(XEvent *e)
51 {
52 XButtonPressedEvent *ev = &e->xbutton;
53 Client *c;
54
55 if((c = getclient(ev->window))) {
56 switch(ev->button) {
57 default:
58 break;
59 case Button1:
60 mmove(c);
61 break;
62 case Button2:
63 XLowerWindow(dpy, c->win);
64 break;
65 case Button3:
66 mresize(c);
67 break;
68 }
69 }
70 }
71
72 static void
73 configurerequest(XEvent *e)
74 {
75 XConfigureRequestEvent *ev = &e->xconfigurerequest;
76 XWindowChanges wc;
77 Client *c;
78
79 ev->value_mask &= ~CWSibling;
80 if((c = getclient(ev->window))) {
81 if(ev->value_mask & CWX)
82 c->x = ev->x;
83 if(ev->value_mask & CWY)
84 c->y = ev->y;
85 if(ev->value_mask & CWWidth)
86 c->w = ev->width;
87 if(ev->value_mask & CWHeight)
88 c->h = ev->height;
89 }
90
91 wc.x = ev->x;
92 wc.y = ev->y;
93 wc.width = ev->width;
94 wc.height = ev->height;
95 wc.border_width = 0;
96 wc.sibling = None;
97 wc.stack_mode = Above;
98 ev->value_mask &= ~CWStackMode;
99 ev->value_mask |= CWBorderWidth;
100 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
101 XFlush(dpy);
102 }
103
104 static void
105 destroynotify(XEvent *e)
106 {
107 Client *c;
108 XDestroyWindowEvent *ev = &e->xdestroywindow;
109
110 if((c = getclient(ev->window)))
111 unmanage(c);
112 }
113
114 static void
115 enternotify(XEvent *e)
116 {
117 XCrossingEvent *ev = &e->xcrossing;
118 Client *c;
119
120 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
121 return;
122
123 if((c = getclient(ev->window)))
124 focus(c);
125 else if(ev->window == root) {
126 sel_screen = True;
127 /*draw_frames();*/
128 }
129 }
130
131 static void
132 leavenotify(XEvent *e)
133 {
134 XCrossingEvent *ev = &e->xcrossing;
135
136 if((ev->window == root) && !ev->same_screen) {
137 sel_screen = True;
138 /*draw_frames();*/
139 }
140 }
141
142 static void
143 expose(XEvent *e)
144 {
145 XExposeEvent *ev = &e->xexpose;
146
147 if(ev->count == 0) {
148 if(ev->window == barwin)
149 draw_bar();
150 }
151 }
152
153 static void
154 keymapnotify(XEvent *e)
155 {
156 update_keys();
157 }
158
159 static void
160 maprequest(XEvent *e)
161 {
162 XMapRequestEvent *ev = &e->xmaprequest;
163 static XWindowAttributes wa;
164
165 if(!XGetWindowAttributes(dpy, ev->window, &wa))
166 return;
167
168 if(wa.override_redirect) {
169 XSelectInput(dpy, ev->window,
170 (StructureNotifyMask | PropertyChangeMask));
171 return;
172 }
173
174 if(!getclient(ev->window))
175 manage(ev->window, &wa);
176 }
177
178 static void
179 propertynotify(XEvent *e)
180 {
181 XPropertyEvent *ev = &e->xproperty;
182 Client *c;
183
184 if(ev->state == PropertyDelete)
185 return; /* ignore */
186
187 if(ev->atom == wm_atom[WMProtocols]) {
188 c->proto = win_proto(c->win);
189 return;
190 }
191 if((c = getclient(ev->window))) {
192 switch (ev->atom) {
193 default: break;
194 case XA_WM_TRANSIENT_FOR:
195 XGetTransientForHint(dpy, c->win, &c->trans);
196 break;
197 update_size(c);
198 case XA_WM_NORMAL_HINTS:
199 update_size(c);
200 break;
201 }
202 if(ev->atom == XA_WM_NAME || ev->atom == net_atom[NetWMName]) {
203 update_name(c);
204 }
205 }
206 }
207
208 static void
209 unmapnotify(XEvent *e)
210 {
211 Client *c;
212 XUnmapEvent *ev = &e->xunmap;
213
214 if((c = getclient(ev->window)))
215 unmanage(c);
216 }