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view event.c @ 26:e8f627998d6f

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simplified several portions of code through replacing rect structs with x,y,h,w counterparts (much more readable)
author Anselm R. Garbe <garbeam@wmii.de>
date Wed, 12 Jul 2006 15:17:22 +0200
parents e238dc4844d7
children 8ad86d0a6a53
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 void
41 discard_events(long even_mask)
42 {
43 XEvent ev;
44 while(XCheckMaskEvent(dpy, even_mask, &ev));
45 }
46
47 static void
48 buttonpress(XEvent *e)
49 {
50 XButtonPressedEvent *ev = &e->xbutton;
51 Client *c;
52
53 if((c = getclient(ev->window))) {
54 raise(c);
55 switch(ev->button) {
56 default:
57 break;
58 case Button1:
59 mmove(c);
60 break;
61 case Button2:
62 lower(c);
63 break;
64 case Button3:
65 mresize(c);
66 break;
67 }
68 }
69 }
70
71 static void
72 configurerequest(XEvent *e)
73 {
74 XConfigureRequestEvent *ev = &e->xconfigurerequest;
75 XWindowChanges wc;
76 Client *c;
77
78 ev->value_mask &= ~CWSibling;
79 if((c = getclient(ev->window))) {
80 if(ev->value_mask & CWX)
81 c->x = ev->x;
82 if(ev->value_mask & CWY)
83 c->y = ev->y;
84 if(ev->value_mask & CWWidth)
85 c->w = ev->width;
86 if(ev->value_mask & CWHeight)
87 c->h = ev->height;
88 }
89
90 wc.x = ev->x;
91 wc.y = ev->y;
92 wc.width = ev->width;
93 wc.height = ev->height;
94 wc.border_width = 1;
95 wc.sibling = None;
96 wc.stack_mode = Above;
97 ev->value_mask &= ~CWStackMode;
98 ev->value_mask |= CWBorderWidth;
99 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
100 XFlush(dpy);
101 }
102
103 static void
104 destroynotify(XEvent *e)
105 {
106 Client *c;
107 XDestroyWindowEvent *ev = &e->xdestroywindow;
108
109 if((c = getclient(ev->window)))
110 unmanage(c);
111 }
112
113 static void
114 enternotify(XEvent *e)
115 {
116 XCrossingEvent *ev = &e->xcrossing;
117 Client *c;
118
119 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
120 return;
121
122 if((c = getclient(ev->window)))
123 focus(c);
124 else if(ev->window == root)
125 sel_screen = True;
126 }
127
128 static void
129 leavenotify(XEvent *e)
130 {
131 XCrossingEvent *ev = &e->xcrossing;
132
133 if((ev->window == root) && !ev->same_screen)
134 sel_screen = True;
135 }
136
137 static void
138 expose(XEvent *e)
139 {
140 XExposeEvent *ev = &e->xexpose;
141 Client *c;
142
143 if(ev->count == 0) {
144 if((c = gettitle(ev->window)))
145 draw_client(c);
146 else if(ev->window == barwin)
147 draw_bar();
148 }
149 }
150
151 static void
152 keymapnotify(XEvent *e)
153 {
154 update_keys();
155 }
156
157 static void
158 maprequest(XEvent *e)
159 {
160 XMapRequestEvent *ev = &e->xmaprequest;
161 static XWindowAttributes wa;
162
163 if(!XGetWindowAttributes(dpy, ev->window, &wa))
164 return;
165
166 if(wa.override_redirect) {
167 XSelectInput(dpy, ev->window,
168 (StructureNotifyMask | PropertyChangeMask));
169 return;
170 }
171
172 if(!getclient(ev->window))
173 manage(ev->window, &wa);
174 }
175
176 static void
177 propertynotify(XEvent *e)
178 {
179 XPropertyEvent *ev = &e->xproperty;
180 Client *c;
181
182 if(ev->state == PropertyDelete)
183 return; /* ignore */
184
185 if(ev->atom == wm_atom[WMProtocols]) {
186 c->proto = win_proto(c->win);
187 return;
188 }
189 if((c = getclient(ev->window))) {
190 switch (ev->atom) {
191 default: break;
192 case XA_WM_TRANSIENT_FOR:
193 XGetTransientForHint(dpy, c->win, &c->trans);
194 break;
195 update_size(c);
196 case XA_WM_NORMAL_HINTS:
197 update_size(c);
198 break;
199 }
200 if(ev->atom == XA_WM_NAME || ev->atom == net_atom[NetWMName]) {
201 update_name(c);
202 if(c == stack)
203 draw_bar();
204 else
205 draw_client(c);
206 }
207 }
208 }
209
210 static void
211 unmapnotify(XEvent *e)
212 {
213 Client *c;
214 XUnmapEvent *ev = &e->xunmap;
215
216 if((c = getclient(ev->window)))
217 unmanage(c);
218 }