From a5c86e540052b5f7a2111ca522f61134503fad3a Mon Sep 17 00:00:00 2001
From: Weng Xuetian <wengxt@gmail.com>
Date: Mon, 18 Apr 2016 21:16:59 -0700
Subject: [PATCH] do not resize window that overlaps with current window.

---
 contents/code/main.js | 44 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/contents/code/main.js b/contents/code/main.js
index 5910036..371dd47 100644
--- a/contents/code/main.js
+++ b/contents/code/main.js
@@ -27,6 +27,7 @@ var config = {
 	enabledUsually: true,
 	ignoreMaximized: true,
 	ignoreShaded: true,
+	ignoreOverlapped: true,
 	liveUpdate: true,
 	opacityOfSnapped: 0.75
 };
@@ -80,6 +81,46 @@ function clientRemoved(client) {
 	}
 }
 
+
+function rectIntersects(rt1, rt2)
+{
+    var l1 = rt1.x1;
+    var r1 = rt1.x1;
+    if (rt1.x2 - rt1.x1 + 1 < 0)
+        l1 = rt1.x2;
+    else
+        r1 = rt1.x2;
+
+    var l2 = rt2.x1;
+    var r2 = rt2.x1;
+    if (rt2.x2 - rt2.x1 + 1 < 0)
+        l2 = rt2.x2;
+    else
+        r2 = rt2.x2;
+
+    if (l1 >= r2 || l2 >= r1)
+        return false;
+
+    var t1 = rt1.y1;
+    var b1 = rt1.y1;
+    if (rt1.y2 - rt1.y1 + 1 < 0)
+        t1 = rt1.y2;
+    else
+        b1 = rt1.y2;
+
+    var t2 = rt2.y1;
+    var b2 = rt2.y1;
+    if (rt2.y2 - rt2.y1 + 1 < 0)
+        t2 = rt2.y2;
+    else
+        b2 = rt2.y2;
+
+    if (t1 >= b2 || t2 >= b1)
+        return false;
+
+    return true;
+}
+
 function clientStartUserMovedResized(client) {
 	if (!config.enabledCurrently) return;
 	if (!client.resize) return;
@@ -105,6 +146,9 @@ function clientStartUserMovedResized(client) {
 		if (config.ignoreShaded && c.shade) continue;
 		if (config.ignoreMaximized && shallowEquals(g, workspace.clientArea(workspace.MaximizeArea, c))) continue;
 		if (c.activities.length !== 0 && c.activities.indexOf(workspace.currentActivity) === -1) continue;
+		var rt1 = { x1 : l1, x2 : r1, y1 : t1, y2 : b1 };
+		var rt2 = { x1 : l2, x2 : r2, y1 : t2, y2 : b2 };
+		if (config.ignoreOverlapped && rectIntersects(rt1, rt2)) continue;
 
 		var snap = {
 			lr: l1 === r2,