Implemented mouse_warping_position command to adjust position of mouse warp.

include/sway/commands.h

@@ -155,6 +155,7 @@ sway_cmd cmd_mark;
 sway_cmd cmd_max_render_time;
 sway_cmd cmd_mode;
 sway_cmd cmd_mouse_warping;
+sway_cmd cmd_mouse_warping_position;
 sway_cmd cmd_move;
 sway_cmd cmd_new_float;
 sway_cmd cmd_new_window;

include/sway/config.h

@@ -461,6 +461,14 @@ enum mouse_warping_mode {
 	WARP_CONTAINER,
 };
 
+enum mouse_warping_position {
+        WARP_POS_CENTER,
+        WARP_POS_TOPLEFT,
+        WARP_POS_TOPRIGHT,
+        WARP_POS_BOTLEFT,
+        WARP_POS_BOTRIGHT,
+};
+
 enum alignment {
 	ALIGN_LEFT,
 	ALIGN_CENTER,
@@ -524,6 +532,7 @@ struct sway_config {
 	// Flags
 	enum focus_follows_mouse_mode focus_follows_mouse;
 	enum mouse_warping_mode mouse_warping;
+        enum mouse_warping_position mouse_warping_position;
 	enum focus_wrapping_mode focus_wrapping;
 	bool active;
 	bool failed;

include/sway/input/cursor.h

@@ -127,7 +127,9 @@ void cursor_set_image_surface(struct sway_cursor *cursor,
 		struct wl_client *client);
 
 void cursor_warp_to_container(struct sway_cursor *cursor,
-	struct sway_container *container, bool force);
+	struct sway_container *container,
+                              enum mouse_warping_position pos,
+                              bool force);
 
 void cursor_warp_to_workspace(struct sway_cursor *cursor,
 		struct sway_workspace *workspace);

sway/commands.c

@@ -76,6 +76,7 @@ static const struct cmd_handler handlers[] = {
 	{ "input", cmd_input },
 	{ "mode", cmd_mode },
 	{ "mouse_warping", cmd_mouse_warping },
+        { "mouse_warping_position", cmd_mouse_warping_position },
 	{ "new_float", cmd_new_float },
 	{ "new_window", cmd_new_window },
 	{ "no_focus", cmd_no_focus },

sway/commands/focus.c

@@ -279,7 +279,7 @@ static struct cmd_results *focus_mode(struct sway_workspace *ws,
 		// `seat_consider_warp_to_focus` would decide not to warp, but we need
 		// to anyway.
 		if (config->mouse_warping == WARP_CONTAINER) {
-			cursor_warp_to_container(seat->cursor, new_focus, true);
+                    cursor_warp_to_container(seat->cursor, new_focus, config->mouse_warping_position, true);
 		} else {
 			seat_consider_warp_to_focus(seat);
 		}

sway/commands/mouse_warping.c

@@ -19,3 +19,23 @@ struct cmd_results *cmd_mouse_warping(int argc, char **argv) {
 	return cmd_results_new(CMD_SUCCESS, NULL);
 }
 
+struct cmd_results *cmd_mouse_warping_position(int argc, char **argv) {
+        struct cmd_results *error = NULL;
+        if ((error = checkarg(argc, "mouse_warping_position", EXPECTED_EQUAL_TO, 1))) {
+		return error;
+	} else if (strcasecmp(argv[0], "center") == 0) {
+		config->mouse_warping_position = WARP_POS_CENTER;
+	} else if (strcasecmp(argv[0], "topleft") == 0) {
+		config->mouse_warping_position = WARP_POS_TOPLEFT;
+        } else if (strcasecmp(argv[0], "topright") == 0) {
+		config->mouse_warping_position = WARP_POS_TOPRIGHT;
+        } else if (strcasecmp(argv[0], "bottomleft") == 0) {
+		config->mouse_warping_position = WARP_POS_BOTLEFT;
+	} else if (strcasecmp(argv[0], "bottomright") == 0) {
+		config->mouse_warping_position = WARP_POS_BOTRIGHT;
+	} else {
+		return cmd_results_new(CMD_FAILURE,
+                                       "Expected 'mouse_warping_position center|topleft|topright|bottomleft|bottomright");
+	}
+	return cmd_results_new(CMD_SUCCESS, NULL);
+}

sway/config.c

@@ -270,6 +270,7 @@ static void config_defaults(struct sway_config *config) {
 	// Flags
 	config->focus_follows_mouse = FOLLOWS_YES;
 	config->mouse_warping = WARP_OUTPUT;
+        config->mouse_warping_position = WARP_POS_CENTER;
 	config->focus_wrapping = WRAP_YES;
 	config->validating = false;
 	config->reloading = false;

sway/input/cursor.c

@@ -1162,7 +1162,9 @@ struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
  * false. If container is NULL, returns without doing anything.
  */
 void cursor_warp_to_container(struct sway_cursor *cursor,
-		struct sway_container *container, bool force) {
+                              struct sway_container *container,
+                              enum mouse_warping_position pos,
+                              bool force) {
 	if (!container) {
 		return;
 	}
@@ -1174,9 +1176,31 @@ void cursor_warp_to_container(struct sway_cursor *cursor,
 		return;
 	}
 
+        // Initialize to center
 	double x = container->pending.x + container->pending.width / 2.0;
 	double y = container->pending.y + container->pending.height / 2.0;
 
+        switch (pos) {
+        case WARP_POS_CENTER:
+            // Already initialized above
+            break;
+        case WARP_POS_TOPLEFT:
+            x = container->pending.x;
+            y = container->pending.y;
+            break;
+        case WARP_POS_TOPRIGHT:
+            x = container->pending.x + container->pending.width;
+            y = container->pending.y;
+            break;
+        case WARP_POS_BOTLEFT:
+            x = container->pending.x;
+            y = container->pending.y + container->pending.height;
+            break;
+        case WARP_POS_BOTRIGHT:
+            x = container->pending.x + container->pending.width;
+            y = container->pending.y + container->pending.height;
+            break;
+        }
 	wlr_cursor_warp(cursor->cursor, NULL, x, y);
 	cursor_unhide(cursor);
 }

sway/input/seat.c

@@ -1552,7 +1552,7 @@ void seat_consider_warp_to_focus(struct sway_seat *seat) {
 	}
 
 	if (focus->type == N_CONTAINER) {
-		cursor_warp_to_container(seat->cursor, focus->sway_container, false);
+            cursor_warp_to_container(seat->cursor, focus->sway_container, config->mouse_warping_position, false);
 	} else {
 		cursor_warp_to_workspace(seat->cursor, focus->sway_workspace);
 	}

sway/sway.5.scd

@@ -791,7 +791,12 @@ The default colors are:
 *mouse_warping* output|container|none
 	If _output_ is specified, the mouse will be moved to new outputs as you
 	move focus between them. If _container_ is specified, the mouse will be
-	moved to the middle of the container on switch. Default is _output_.
+	moved into the container on switch. The mouse warp position can be adjusted
+        with *mouse_warping_position*. Default is _output_.
+
+*mouse_warping_position* center|topleft|topright|bottomleft|bottomright
+        Which corner of the container to move the mouse to when mouse warping occurs.
+        Default is _center_.
 
 *no_focus* <criteria>
 	Prevents windows matching <criteria> from being focused automatically when