From 65d80d7fcec33b0d18512c8b092b10177eb51a76 Mon Sep 17 00:00:00 2001
From: "Michael D. Lowis" <mike@mdlowis.com>
Date: Sat, 28 Mar 2020 15:06:59 -0400
Subject: [PATCH] added grab pointer to change cursor and control event
 delivery

---
 anvil.c  | 8 +++++++-
 anvil.h  | 4 +---
 client.c | 2 +-
 mouse.c  | 1 -
 4 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/anvil.c b/anvil.c
index ed0b085..e13db64 100644
--- a/anvil.c
+++ b/anvil.c
@@ -14,6 +14,9 @@ static void check_for_wm(void)
 static void xbtnpress(XEvent* e)
 {
     XButtonEvent* ev = &(e->xbutton);
+    XGrabPointer(X.disp, ev->window, False,
+        ButtonPressMask | ButtonReleaseMask | ButtonMotionMask,
+        GrabModeAsync, GrabModeAsync, None, X.csr_move, CurrentTime);
     printf("BTN_DN(w: 0x%lx x: %d y: %d rx: %d ry: %d)\n", ev->window, ev->x, ev->y, ev->x_root, ev->y_root);
     X.start_x = ev->x_root, X.start_y = ev->y_root;
     X.last_x  = ev->x_root, X.last_y  = ev->y_root;
@@ -56,6 +59,7 @@ static void xbtnrelease(XEvent* e)
         mouse_up(ev, &loc);
     }
     X.mode = M_IDLE;
+    XUngrabPointer(X.disp, CurrentTime);
 }
 
 static void xbtnmotion(XEvent* e)
@@ -170,9 +174,9 @@ static void xenternotify(XEvent* e)
 static void xexpose(XEvent* e)
 {
     XExposeEvent* ev = &(e->xexpose);
-//    printf("EXPOSE(w: 0x%lx)\n", ev->window);
     if (ev->count == 0)
     {
+        printf("EXPOSE(w: 0x%lx)\n", ev->window);
         Client* c = client_get(ev->window, NULL);
         if (c)
         {
@@ -197,6 +201,8 @@ static void init_cursors(void)
     XAllocNamedColor(X.disp, cmap, "white", &white, &exact);
     X.csr_point = XCreateFontCursor(X.disp, XC_left_ptr);
     XRecolorCursor(X.disp, X.csr_point, &red, &white);
+    X.csr_move = XCreateFontCursor(X.disp, XC_fleur);
+    XRecolorCursor(X.disp, X.csr_move, &red, &white);
     XDefineCursor(X.disp, X.root, X.csr_root);
 }
 
diff --git a/anvil.h b/anvil.h
index 1433f22..c485a57 100644
--- a/anvil.h
+++ b/anvil.h
@@ -17,8 +17,6 @@
 #define max(a,b) (a > b ? a : b)
 
 /* TODO: warp mouse pointer to title bars on new windows */
-/* TODO: implement mouse handling for tiling methods */
-/* TODO: add logic to add/del columns and retile */
 
 enum {
     M_INIT,
@@ -41,7 +39,7 @@ typedef struct {
     int screen, mode, edge, start_x, start_y, last_x, last_y;
     Window root;
     unsigned long black, white, gray;
-    Cursor csr_root, csr_point;
+    Cursor csr_root, csr_point, csr_move;
     XFontSet font;
     XFontSetExtents *font_ext;
     GC graphics;
diff --git a/client.c b/client.c
index 56f2802..7e23284 100644
--- a/client.c
+++ b/client.c
@@ -220,5 +220,5 @@ void client_setshade(Client* c, int shade)
 void client_warpmouse(Client* c)
 {
     (void)c;
-//    XWarpPointer(X.disp, None, X.root, 0, 0, 0, 0, (c->x + c->w/2), c->y + (MIN_HEIGHT/2));
+    //XWarpPointer(X.disp, None, X.root, 0, 0, 0, 0, (c->x + c->w/2), c->y + (MIN_HEIGHT/2));
 }
diff --git a/mouse.c b/mouse.c
index 6a3e51f..c781af3 100644
--- a/mouse.c
+++ b/mouse.c
@@ -116,7 +116,6 @@ static void float_drag(XMotionEvent* ev, Location* loc)
 
 void mouse_up(XButtonEvent* ev, Location* loc)
 {
-    /* TODO: handle button 1 drag to resize, reposition, and move windows */
     if (X.mode == M_TILE_RESIZE)
     {
         mons_tilemove(loc, ev->y_root - X.start_y);
-- 
2.52.0