tclient.c - plan9port - [fork] Plan 9 from user space
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tclient.c (5495B)
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1 /* Copyright (c) 1994-1996 David Hogan, see README for licence details */
2 #include <stdio.h>
3 #include <unistd.h>
4 #include <stdlib.h>
5 #include <string.h>
6 #include <X11/X.h>
7 #include <X11/Xlib.h>
8 #include <X11/Xutil.h>
9 #include "dat.h"
10 #include "fns.h"
11
12 Client *clients;
13 Client *current;
14
15 void
16 setactive(Client *c, int on)
17 {
18 /* dbg("setactive client %x %d", c->window, c->on); */
19
20 if(c->parent == c->screen->root)
21 return;
22
23 if(on){
24 XUngrabButton(dpy, AnyButton, AnyModifier, c->parent);
25 XSetInputFocus(dpy, c->window, RevertToPointerRoot, timestamp());
26 if(c->proto & Ptakefocus)
27 sendcmessage(c->window, wm_protocols, wm_take_focus, 0, 1);
28 cmapfocus(c);
29 }else{
30 if(c->proto & Plosefocus)
31 sendcmessage(c->window, wm_protocols, wm_lose_focus, 0, 1);
32 XGrabButton(dpy, AnyButton, AnyModifier, c->parent, False,
33 ButtonMask, GrabModeAsync, GrabModeSync, None, None);
34 }
35 draw_border(c, on);
36 }
37
38 void
39 draw_border(Client *c, int active)
40 {
41 unsigned long pixel;
42
43 if(active){
44 if(c->hold)
45 pixel = c->screen->activeholdborder;
46 else
47 pixel = c->screen->activeborder;
48 }else{
49 if(c->hold)
50 pixel = c->screen->inactiveholdborder;
51 else
52 pixel = c->screen->inactiveborder;
53 }
54
55 if(debug) fprintf(stderr, "draw_border %p pixel %ld active %d hold %d\n", (void*)c, pixel, active, c->hold);
56 XSetWindowBackground(dpy, c->parent, pixel);
57 XClearWindow(dpy, c->parent);
58 }
59
60 void
61 active(Client *c)
62 {
63 Client *cc;
64
65 if(c == 0){
66 fprintf(stderr, "rio: active(c==0)\n");
67 return;
68 }
69 if(c == current)
70 return;
71 if(current){
72 setactive(current, 0);
73 if(current->screen != c->screen)
74 cmapnofocus(current->screen);
75 }
76 setactive(c, 1);
77 for(cc = clients; cc; cc = cc->next)
78 if(cc->revert == c)
79 cc->revert = c->revert;
80 c->revert = current;
81 while(c->revert && !normal(c->revert))
82 c->revert = c->revert->revert;
83 current = c;
84 #ifdef DEBUG
85 if(debug)
86 dump_revert();
87 #endif
88 }
89
90 void
91 nofocus(void)
92 {
93 static Window w = 0;
94 int mask;
95 XSetWindowAttributes attr;
96 Client *c;
97
98 if(current){
99 setactive(current, 0);
100 for(c = current->revert; c; c = c->revert)
101 if(normal(c)){
102 active(c);
103 return;
104 }
105 cmapnofocus(current->screen);
106 /* if no candidates to revert to, fall through */
107 }
108 current = 0;
109 if(w == 0){
110 mask = CWOverrideRedirect/*|CWColormap*/;
111 attr.override_redirect = 1;
112 /* attr.colormap = screens[0].def_cmap;*/
113 w = XCreateWindow(dpy, screens[0].root, 0, 0, 1, 1, 0,
114 0 /*screens[0].depth*/, InputOnly, screens[0].vis, mask, &attr);
115 XMapWindow(dpy, w);
116 }
117 XSetInputFocus(dpy, w, RevertToPointerRoot, timestamp());
118 }
119
120 void
121 top(Client *c)
122 {
123 Client **l, *cc;
124
125 l = &clients;
126 for(cc = *l; cc; cc = *l){
127 if(cc == c){
128 *l = c->next;
129 c->next = clients;
130 clients = c;
131 return;
132 }
133 l = &cc->next;
134 }
135 fprintf(stderr, "rio: %p not on client list in top()\n", (void*)c);
136 }
137
138 Client *
139 getclient(Window w, int create)
140 {
141 Client *c;
142
143 if(w == 0 || getscreen(w))
144 return 0;
145
146 for(c = clients; c; c = c->next)
147 if(c->window == w || c->parent == w)
148 return c;
149
150 if(!create)
151 return 0;
152
153 c = (Client *)malloc(sizeof(Client));
154 memset(c, 0, sizeof(Client));
155 c->window = w;
156 /* c->parent will be set by the caller */
157 c->parent = None;
158 c->reparenting = 0;
159 c->state = WithdrawnState;
160 c->init = 0;
161 c->cmap = None;
162 c->label = c->class = 0;
163 c->revert = 0;
164 c->is9term = 0;
165 c->hold = 0;
166 c->ncmapwins = 0;
167 c->cmapwins = 0;
168 c->wmcmaps = 0;
169 c->next = clients;
170 c->virt = virt;
171 clients = c;
172 return c;
173 }
174
175 void
176 rmclient(Client *c)
177 {
178 Client *cc;
179
180 for(cc = current; cc && cc->revert; cc = cc->revert)
181 if(cc->revert == c)
182 cc->revert = cc->revert->revert;
183
184 if(c == clients)
185 clients = c->next;
186 for(cc = clients; cc && cc->next; cc = cc->next)
187 if(cc->next == c)
188 cc->next = cc->next->next;
189
190 if(hidden(c))
191 unhidec(c, 0);
192
193 if(c->parent != c->screen->root)
194 XDestroyWindow(dpy, c->parent);
195
196 c->parent = c->window = None; /* paranoia */
197 if(current == c){
198 current = c->revert;
199 if(current == 0)
200 nofocus();
201 else {
202 if(current->screen != c->screen)
203 cmapnofocus(c->screen);
204 setactive(current, 1);
205 }
206 }
207 if(c->ncmapwins != 0){
208 XFree((char *)c->cmapwins);
209 free((char *)c->wmcmaps);
210 }
211 if(c->iconname != 0)
212 XFree((char*) c->iconname);
213 if(c->name != 0)
214 XFree((char*) c->name);
215 if(c->instance != 0)
216 XFree((char*) c->instance);
217 if(c->class != 0)
218 XFree((char*) c->class);
219 memset(c, 0, sizeof(Client)); /* paranoia */
220 free(c);
221 }
222
223 #ifdef DEBUG
224 void
225 dump_revert(void)
226 {
227 Client *c;
228 int i;
229
230 i = 0;
231 for(c = current; c; c = c->revert){
232 fprintf(stderr, "%s(%x:%d)", c->label ? c->label : "?", (int)c->window, c->state);
233 if(i++ > 100)
234 break;
235 if(c->revert)
236 fprintf(stderr, " -> ");
237 }
238 if(current == 0)
239 fprintf(stderr, "empty");
240 fprintf(stderr, "\n");
241 }
242
243 void
244 dump_clients(void)
245 {
246 Client *c;
247
248 for(c = clients; c; c = c->next)
249 fprintf(stderr, "w 0x%x parent 0x%x @ (%d, %d)\n", (int)c->window, (int)c->parent, c->x, c->y);
250 }
251 #endif
252
253 void
254 shuffle(int up)
255 {
256 Client **l, *c;
257
258 if(clients == 0 || clients->next == 0)
259 return;
260 if(!up){
261 c = 0;
262 /*for(c=clients; c->next; c=c->next) */
263 /* ; */
264 for(l=&clients; (*l)->next; l=&(*l)->next)
265 if ((*l)->state == 1)
266 c = *l;
267 if (c == 0)
268 return;
269 XMapRaised(dpy, c->parent);
270 top(c);
271 active(c);
272 }else{
273 c = clients;
274 for(l=&clients; *l; l=&(*l)->next)
275 ;
276 clients = c->next;
277 *l = c;
278 c->next = 0;
279 XLowerWindow(dpy, c->window);
280 }
281 /* XMapRaised(dpy, clients->parent); */
282 /* top(clients); */
283 /* active(clients); */
284 }