Add root.c

cmd/wmii/root.c

@@ -0,0 +1,89 @@
+/* Copyright ©2008 Kris Maglione <maglione.k at Gmail>
+ * See LICENSE file for license details.
+ */
+#include "dat.h"
+#include "fns.h"
+
+static Handlers handlers;
+
+void
+root_init(void) {
+	WinAttr wa;
+
+	wa.event_mask = EnterWindowMask
+		      | FocusChangeMask
+		      | LeaveWindowMask
+		      | PointerMotionMask
+		      | SubstructureNotifyMask
+		      | SubstructureRedirectMask;
+	wa.cursor = cursor[CurNormal];
+	setwinattr(&scr.root, &wa,
+			  CWEventMask
+			| CWCursor);
+	sethandler(&scr.root, &handlers);
+}
+
+static void
+enter_event(Window *w, XCrossingEvent *e) {
+	disp.sel = true;
+	frame_draw_all();
+}
+
+static void
+leave_event(Window *w, XCrossingEvent *e) {
+	if(!e->same_screen) {
+		disp.sel = false;
+		frame_draw_all();
+	}
+}
+
+static void
+focusin_event(Window *w, XFocusChangeEvent *e) {
+	if(e->mode == NotifyGrab)
+		disp.hasgrab = &c_root;
+}
+
+static void
+mapreq_event(Window *w, XMapRequestEvent *e) {
+	XWindowAttributes wa;
+
+	if(!XGetWindowAttributes(display, e->window, &wa))
+		return;
+	if(wa.override_redirect) {
+		/* Do I really want these? */
+		/* Probably not.
+		XSelectInput(display, e->window,
+			 PropertyChangeMask | StructureNotifyMask);
+		*/
+		return;
+	}
+	if(!win2client(e->window))
+		client_create(e->window, &wa);
+}
+
+static void
+motion_event(Window *w, XMotionEvent *e) {
+	Rectangle r, r2;
+
+	r = rectsetorigin(Rect(0, 0, 1, 1), Pt(e->x_root, e->y_root));
+	r2 = constrain(r, 1);
+	if(!eqrect(r, r2))
+ 		warppointer(r2.min);
+}
+
+static void
+kdown_event(Window *w, XKeyEvent *e) {
+
+	e->state &= valid_mask;
+	kpress(w->w, e->state, (KeyCode)e->keycode);
+}
+
+static Handlers handlers = {
+	.enter = enter_event,
+	.focusin = focusin_event,
+	.kdown = kdown_event,
+	.leave = leave_event,
+	.mapreq = mapreq_event,
+	.motion = motion_event,
+};
+