From: Michael D. Lowis <mike.lowis@gentex.com>
Date: Wed, 29 May 2019 21:46:35 +0000 (-0400)
Subject: strip down wm to bare minimum handling of requests
X-Git-Url: https://git.mdlowis.com/?a=commitdiff_plain;h=43fa1fda99947326e4d207e5b599a77e2119385b;p=projs%2Ftide.git

strip down wm to bare minimum handling of requests
---

diff --git a/TODO.md b/TODO.md
index b6a3559..c1a3bfa 100644
--- a/TODO.md
+++ b/TODO.md
@@ -17,6 +17,7 @@
 * encode EOL setting in log entries?
 * implement a mini-sed command to standardize scripts across platforms without relying on sed
 * add tag to enable/disable scrolling on command output insertion
+* 9term-like terminal window
 
 ### TFRAME
 
diff --git a/src/anvil.c b/src/anvil.c
index 284ca55..e223130 100644
--- a/src/anvil.c
+++ b/src/anvil.c
@@ -46,27 +46,6 @@ void xfree(void* p) {
 
 /* Client Handling
  *****************************************************************************/
-void client_setstate(XConf* x, Client* c, int state) {
-    uint32_t data[2] = { state, None };
-    Atom wm_state = atom(x, "WM_STATE");
-    XChangeProperty(x->display, c->win, wm_state, wm_state, 32, PropModeReplace, (unsigned char *)data, 2);
-}
-
-void client_config(XConf* x, Client *c) {
-    XConfigureEvent e = {0};
-    e.type = ConfigureNotify;
-    e.event = c->win;
-    e.window = c->win;
-    e.x = c->x;
-    e.y = c->y;
-    e.width = c->w;
-    e.height = c->h;
-    e.border_width = 0;
-    e.above = None;
-    e.override_redirect = 0;
-    XSendEvent(x->display, c->win, False, StructureNotifyMask, (XEvent *)&e);
-}
-
 void client_add(XConf* x, Window win) {
     Client* c = calloc(1, sizeof(Client));
     c->win = win;
@@ -75,11 +54,11 @@ void client_add(XConf* x, Window win) {
     XGrabServer(x->display);
     XFetchName(x->display, win, &c->name);
 
+    /* create the frame window */
     XWindowAttributes attr;
     XGetWindowAttributes(x->display, win, &attr);
     c->x = attr.x, c->y = attr.y;
     c->w = attr.width, c->h = attr.height;
-    client_setstate(x, c, NormalState);
     XSetWindowAttributes pattr = {0};
     pattr.override_redirect = True;
     c->frame = XCreateWindow(
@@ -87,29 +66,19 @@ void client_add(XConf* x, Window win) {
         x->depth, CopyFromParent, x->visual,
         CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWEventMask, &pattr);
     c->xft = XftDrawCreate(x->display, (Drawable) c->frame, x->visual, x->colormap);
-//    XSetWindowBorderWidth(x->display, c->frame, 1);
-//    XSetWindowBorderWidth(x->display, c->win, 1);
+
+    /* setup event handling on both windows */
     XSelectInput(x->display, c->frame,
         ButtonPressMask|ButtonReleaseMask|FocusChangeMask|StructureNotifyMask);
     XSelectInput(x->display, c->win,
         EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
 
-#if 0
-    XSetWindowBorderWidth(x->display, c->win, 0);
-    XResizeWindow(x->display, c->win, c->w, c->h);
-    XReparentWindow(x->display, c->win, c->frame, 0, 20);
-    client_config(x, c);
-    c->xft = XftDrawCreate(x->display, (Drawable) c->frame, x->visual, x->colormap);
-    XMapWindow(x->display, c->win);
-    XMapRaised(x->display, c->frame);
-#else
+    /* position the window and frame */
     XSetWindowBorderWidth(x->display, c->win, 0);
     XMoveResizeWindow(x->display, c->frame, 100, 100 - x->font->height, c->w, x->font->height);
     XMoveResizeWindow(x->display, c->win, 100, 100, c->w, c->h);
-    client_config(x, c);
     XMapRaised(x->display, c->frame);
     XMapRaised(x->display, c->win);
-#endif
 
     XSync(x->display, False);
     XUngrabServer(x->display);
@@ -121,7 +90,6 @@ Client* client_del(XConf* x, Client* curr, Client* c) {
     } else if (curr == c) {
         Client* next = c->next;
         XGrabServer(x->display);
-        client_setstate(x, c, WithdrawnState);
         XftDrawDestroy(c->xft);
         XDestroyWindow(x->display, c->frame);
         xfree(c->name);
@@ -155,33 +123,30 @@ static void xbtnpress(XConf* x, XEvent* e) {
 
 static void xconfigrequest(XConf* x, XEvent* e) {
     dbg("config\n");
+    /*
+        Check if it's a window we care about. If it is, and it's floating, just
+        grant the request. Otherwise, deny it as we have it tiled already. All
+        other windows have their requests granted.
+    */
     Client* c = client_find(e->xconfigurerequest.window);
     XWindowChanges wc;
-    if (c != NULL) {
-        wc.x = c->x;
-        wc.y = c->y - 20;
-        wc.width = c->w;
-        wc.height = c->h + 20;
-        wc.border_width = 1;
-        XConfigureWindow(x->display, c->frame, e->xconfigurerequest.value_mask, &wc);
-        client_config(x, c);
-        wc.x = 0;
-        wc.y = 20;
-    } else {
-        wc.x = e->xconfigurerequest.x;
-        wc.y = e->xconfigurerequest.y;
-    }
+    wc.x = e->xconfigurerequest.x;
+    wc.y = e->xconfigurerequest.y;
     wc.width = e->xconfigurerequest.width;
     wc.height = e->xconfigurerequest.height;
+    wc.border_width = e->xconfigurerequest.border_width;
+    wc.sibling = e->xconfigurerequest.above;
+    wc.stack_mode = e->xconfigurerequest.detail;
+    if (c /* && !(c->flags & FLOATING) */)
+        return;
     XConfigureWindow(x->display, e->xconfigurerequest.window, e->xconfigurerequest.value_mask, &wc);
-    XSync(x->display, False);
 }
 
 static void xmaprequest(XConf* x, XEvent* e) {
     dbg("map\n");
     static XWindowAttributes attr = {0};
     if (XGetWindowAttributes(x->display, e->xmaprequest.window, &attr)) {
-        if (attr.override_redirect) return; /* ??? */
+        if (attr.override_redirect) return; /* ignore certain windows (like frames) */
         if (!client_find(e->xmaprequest.window))
             client_add(x, e->xmaprequest.window);
     }
@@ -189,12 +154,13 @@ static void xmaprequest(XConf* x, XEvent* e) {
 
 static void xunmapnotify(XConf* x, XEvent* e) {
     dbg("unmap\n");
-    Client* c = client_find(e->xunmap.window);
-    if (c) Clients = client_del(x, Clients, c);
 }
 
 static void xdestroynotify(XConf* x, XEvent* e) {
     dbg("destroy\n");
+    /*
+        This is where we cleanup windows we care about. destroy them and their frames.
+    */
     Client* c = client_find(e->xdestroywindow.window);
     if (c) Clients = client_del(x, Clients, c);
 }
@@ -205,10 +171,16 @@ static void xclientmsg(XConf* x, XEvent* e) {
 
 static void xpropnotify(XConf* x, XEvent* e) {
     dbg("prop\n");
+    /*
+        We only care about updating the window titles here for now
+    */
 }
 
 static void xenternotify(XConf* x, XEvent* e) {
     dbg("enter\n");
+    /*
+        Handle focus follows mouse here.
+    */
 }
 
 static void xexpose(XConf* x, XEvent* e) {
@@ -218,10 +190,9 @@ static void xexpose(XConf* x, XEvent* e) {
 #pragma GCC diagnostic pop
 
 int main(void) {
-//    dbg("start\n");
     x11_init(&X);
     X.font = x11_font_load(&X, Fonts[0]);
-    XSelectInput(X.display, X.root, SubstructureRedirectMask);
+    XSelectInput(X.display, X.root, SubstructureRedirectMask|SubstructureNotifyMask);
     XSync(X.display, False);
     if (x11_error_get())
         die("Could not start. Is another WM running?\n");
@@ -234,7 +205,6 @@ int main(void) {
     X.eventfns[PropertyNotify] = xpropnotify;
     X.eventfns[EnterNotify] = xenternotify;
     X.eventfns[Expose] = xexpose;
-//    dbg("loop\n");
     x11_event_loop(&X, 0);
     return 0;
 }
diff --git a/src/lib/x11_gc.c b/src/lib/x11_gc.c
index bf2fc12..ee42e4f 100644
--- a/src/lib/x11_gc.c
+++ b/src/lib/x11_gc.c
@@ -16,6 +16,11 @@ void x11_resize(XConf* x, XEvent* e) {
     }
 }
 
+void x11_mapnotify(XConf* x, XEvent* e) {
+    x11_resize(x, e);
+    XWarpPointer(x->display, None, x->self, 0, 0, x->width, x->height, x->width/2, x->height/2);
+}
+
 void x11_init_gc(XConf* x) {
     /* set input methods */
     if ((x->xim = XOpenIM(x->display, 0, 0, 0)))
@@ -31,6 +36,7 @@ void x11_init_gc(XConf* x) {
     x->eventfns[FocusIn] = xfocus;
     x->eventfns[FocusOut] = xfocus;
     x->eventfns[ConfigureNotify] = x11_resize;
+    x->eventfns[MappingNotify] = x11_mapnotify;
 }
 
 void x11_centerwin(XConf* x) {
@@ -62,16 +68,6 @@ void x11_show(XConf* x) {
     XSendEvent(x->display, x->self, False, StructureNotifyMask, (XEvent *)&ce);
     XMapWindow(x->display, x->self);
     XSync(x->display, False);
-
-    /* Waiting for window mapping */
-    XEvent ev;
-    do {
-        XNextEvent(x->display, &ev);
-        if (XFilterEvent(&ev, None))
-            continue;
-        x11_resize(x, &ev);
-    } while (ev.type != MapNotify);
-    XWarpPointer(x->display, None, x->self, 0, 0, x->width, x->height, x->width/2, x->height/2);
 }
 
 XftFont* x11_font_load(XConf* x, char* name) {