Major refactoring in preparation for bar modules

1 files changed, 194 insertions, 0 deletions

diff --git a/patch/bar_systray.c b/patch/bar_systray.c
new file mode 100644
index 0000000..9938543
--- /dev/null
+++ b/patch/bar_systray.c
@@ -0,0 +1,194 @@
+static Systray *systray = NULL;
+static unsigned long systrayorientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
+static int systraybaridx = -1;
+static int systraybarrule = -1;
+static int systrayxpos = 0;
+
+int
+width_systray(Monitor *m, int max_width)
+{
+	unsigned int w = 0;
+	Client *i;
+	if (!systray)
+		return 1;
+	if (showsystray)
+		for (i = systray->icons; i; w += i->w + systrayspacing, i = i->next);
+	return w ? w + systrayspacing : 0;
+}
+
+int
+draw_systray(Monitor *m, int x_pos, int w)
+{
+	systrayxpos = x_pos;
+	updatesystray();
+	return systrayxpos + w;
+}
+
+int
+click_systray(Monitor *m, Arg *arg, int rel_x, int rel_y, int rel_w, int rel_h)
+{
+	return -1;
+}
+
+void
+removesystrayicon(Client *i)
+{
+	Client **ii;
+
+	if (!showsystray || !i)
+		return;
+	for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
+	if (ii)
+		*ii = i->next;
+	free(i);
+}
+
+void
+resizerequest(XEvent *e)
+{
+	XResizeRequestEvent *ev = &e->xresizerequest;
+	Client *i;
+
+	if ((i = wintosystrayicon(ev->window))) {
+		updatesystrayicongeom(i, ev->width, ev->height);
+		updatesystray();
+	}
+}
+
+void
+updatesystray(void)
+{
+	if (!showsystray)
+		return;
+	XSetWindowAttributes wa;
+	Client *i;
+	Monitor *m;
+	unsigned int w = 1, r, mi;
+	const BarRule *br;
+
+	if (!systray) {
+		/* init systray */
+		if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
+			die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
+
+		/* Work out which bar the systray is to be displayed on */
+		for (r = 0; r < LENGTH(barrules); r++) {
+			br = &barrules[r];
+			if (br->drawfunc == &draw_systray) {
+				systraybaridx = br->bar;
+				systraybarrule = r;
+				if (br->monitor == -1 || br->monitor == 'A')
+					m = selmon;
+				else
+					for (m = mons, mi = 0; m && mi < br->monitor && m->next; m = m->next, mi++);
+				systray->win = m->bars[systraybaridx]->win;
+				systray->mon = m;
+
+				break;
+			}
+		}
+		if (systraybaridx == -1) {
+			fprintf(stderr, "dwm: unable to obtain system tray, no draw_systray in bar rules.\n");
+			free(systray);
+			systray = NULL;
+			return;
+		}
+
+		XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
+				PropModeReplace, (unsigned char *)&systrayorientation, 1);
+		#if BAR_ALPHA_PATCH
+		XChangeProperty(dpy, systray->win, netatom[NetSystemTrayVisual], XA_VISUALID, 32,
+				PropModeReplace, (unsigned char *)&visual->visualid, 1);
+		#endif // BAR_ALPHA_PATCH
+		XChangeProperty(dpy, systray->win, netatom[NetWMWindowType], XA_ATOM, 32,
+				PropModeReplace, (unsigned char *)&netatom[NetWMWindowTypeDock], 1);
+		XMapRaised(dpy, systray->win);
+		XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
+		if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
+			sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
+			XSync(dpy, False);
+		} else {
+			fprintf(stderr, "dwm: unable to obtain system tray.\n");
+			free(systray);
+			systray = NULL;
+			return;
+		}
+	}
+
+	for (w = 0, i = systray->icons; i; i = i->next) {
+		/* make sure the background color stays the same */
+		wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
+		XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
+		XMapRaised(dpy, i->win);
+		w += systrayspacing;
+		i->x = systrayxpos + w;
+		XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
+		w += i->w;
+		if (i->mon != systray->mon)
+		    i->mon = systray->mon;
+	}
+}
+
+void
+updatesystrayicongeom(Client *i, int w, int h)
+{
+	if (i) {
+		i->h = bh;
+		if (w == h)
+			i->w = bh;
+		else if (h == bh)
+			i->w = w;
+		else
+			i->w = (int) ((float)bh * ((float)w / (float)h));
+		applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
+		/* force icons into the systray dimensions if they don't want to */
+		if (i->h > bh) {
+			if (i->w == i->h)
+				i->w = bh;
+			else
+				i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
+			i->h = bh;
+		}
+		if (i->w > 2*bh)
+			i->w = bh;
+	}
+}
+
+void
+updatesystrayiconstate(Client *i, XPropertyEvent *ev)
+{
+	long flags;
+	int code = 0;
+
+	if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
+			!(flags = getatomprop(i, xatom[XembedInfo])))
+		return;
+
+	if (flags & XEMBED_MAPPED && !i->tags) {
+		i->tags = 1;
+		code = XEMBED_WINDOW_ACTIVATE;
+		XMapRaised(dpy, i->win);
+		setclientstate(i, NormalState);
+	}
+	else if (!(flags & XEMBED_MAPPED) && i->tags) {
+		i->tags = 0;
+		code = XEMBED_WINDOW_DEACTIVATE;
+		XUnmapWindow(dpy, i->win);
+		setclientstate(i, WithdrawnState);
+	}
+	else
+		return;
+	sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
+			systray->win, XEMBED_EMBEDDED_VERSION);
+}
+
+Client *
+wintosystrayicon(Window w)
+{
+	Client *i = NULL;
+
+	if (!showsystray || !w)
+		return i;
+	for (i = systray->icons; i && i->win != w; i = i->next);
+	return i;
+}
\ No newline at end of file