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
 11#include "wm.h"
 12
 13/* local functions */
 14static void configurerequest(XEvent *e);
 15static void destroynotify(XEvent *e);
 16static void enternotify(XEvent *e);
 17static void leavenotify(XEvent *e);
 18static void expose(XEvent *e);
 19static void keymapnotify(XEvent *e);
 20static void maprequest(XEvent *e);
 21static void propertynotify(XEvent *e);
 22static void unmapnotify(XEvent *e);
 23
 24void (*handler[LASTEvent]) (XEvent *) = {
 25	[ConfigureRequest] = configurerequest,
 26	[DestroyNotify] = destroynotify,
 27	[EnterNotify] = enternotify,
 28	[LeaveNotify] = leavenotify,
 29	[Expose] = expose,
 30	[KeyPress] = keypress,
 31	[KeymapNotify] = keymapnotify,
 32	[MapRequest] = maprequest,
 33	[PropertyNotify] = propertynotify,
 34	[UnmapNotify] = unmapnotify
 35};
 36
 37unsigned int
 38flush_masked_events(long even_mask)
 39{
 40	XEvent ev;
 41	unsigned int n = 0;
 42	while(XCheckMaskEvent(dpy, even_mask, &ev)) n++;
 43	return n;
 44}
 45
 46static void
 47configurerequest(XEvent *e)
 48{
 49	XConfigureRequestEvent *ev = &e->xconfigurerequest;
 50	XWindowChanges wc;
 51	Client *c;
 52
 53	c = getclient(ev->window);
 54	ev->value_mask &= ~CWSibling;
 55	if(c) {
 56		if(ev->value_mask & CWX)
 57			c->r[RFloat].x = ev->x;
 58		if(ev->value_mask & CWY)
 59			c->r[RFloat].y = ev->y;
 60		if(ev->value_mask & CWWidth)
 61			c->r[RFloat].width = ev->width;
 62		if(ev->value_mask & CWHeight)
 63			c->r[RFloat].height = ev->height;
 64		if(ev->value_mask & CWBorderWidth)
 65			c->border = ev->border_width;
 66	}
 67
 68	wc.x = ev->x;
 69	wc.y = ev->y;
 70	wc.width = ev->width;
 71	wc.height = ev->height;
 72	wc.border_width = 0;
 73	wc.sibling = None;
 74	wc.stack_mode = Above;
 75	ev->value_mask &= ~CWStackMode;
 76	ev->value_mask |= CWBorderWidth;
 77	XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
 78	XFlush(dpy);
 79}
 80
 81static void
 82destroynotify(XEvent *e)
 83{
 84	Client *c;
 85	XDestroyWindowEvent *ev = &e->xdestroywindow;
 86
 87	if((c = getclient(ev->window)))
 88		unmanage(c);
 89}
 90
 91static void
 92enternotify(XEvent *e)
 93{
 94#if 0
 95	XCrossingEvent *ev = &e->xcrossing;
 96	Client *c;
 97
 98	if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
 99		return;
100
101	if((c = client_of_win(ev->window))) {
102		Frame *f = c->sel;
103		Area *a = f->area;
104		if(a->mode == Colmax)
105			c = a->sel->client;
106		focus(c, False);
107	}
108	else if(ev->window == root) {
109		sel_screen = True;
110		draw_frames();
111	}
112#endif
113}
114
115static void
116leavenotify(XEvent *e)
117{
118	XCrossingEvent *ev = &e->xcrossing;
119
120	if((ev->window == root) && !ev->same_screen) {
121		sel_screen = True;
122		/*draw_frames();*/
123	}
124}
125
126static void
127expose(XEvent *e)
128{
129	XExposeEvent *ev = &e->xexpose;
130
131	if(ev->count == 0) {
132		if(ev->window == barwin)
133			draw_bar();
134	}
135}
136
137static void
138keymapnotify(XEvent *e)
139{
140#if 0
141	update_keys();
142#endif
143}
144
145static void
146maprequest(XEvent *e)
147{
148	XMapRequestEvent *ev = &e->xmaprequest;
149	static XWindowAttributes wa;
150
151	if(!XGetWindowAttributes(dpy, ev->window, &wa))
152		return;
153
154	if(wa.override_redirect) {
155		XSelectInput(dpy, ev->window,
156				(StructureNotifyMask | PropertyChangeMask));
157		return;
158	}
159
160	if(!getclient(ev->window))
161		manage(ev->window, &wa);
162}
163
164static void
165propertynotify(XEvent *e)
166{
167#if 0
168	XPropertyEvent *ev = &e->xproperty;
169	Client *c;
170
171	if(ev->state == PropertyDelete)
172		return; /* ignore */
173
174	if((c = client_of_win(ev->window)))
175		prop_client(c, ev);
176#endif
177}
178
179static void
180unmapnotify(XEvent *e)
181{
182	Client *c;
183	XUnmapEvent *ev = &e->xunmap;
184
185	if((c = getclient(ev->window)))
186		unmanage(c);
187}