Mercurial > hg > batmud > maputils

changeset 2392:1885ccfe9ee8

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Cleanup.
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 06 Nov 2021 19:13:06 +0200
parents c603badcad70
children a5cbe64e04c0
files src/tooltip.js
diffstat 1 files changed, 34 insertions(+), 25 deletions(-) [+]
line wrap: on
line diff
--- a/src/tooltip.js	Sat Nov 06 18:32:06 2021 +0200
+++ b/src/tooltip.js	Sat Nov 06 19:13:06 2021 +0200
@@ -9,6 +9,34 @@
 var myy = 0;
 
 
+function mapGetWindowSize()
+{
+  var winW = 0, winH = 0;
+  if (typeof(window.innerWidth) == 'number')
+  {
+    // Non-MSIE
+    winW = window.innerWidth;
+    winH = window.innerHeight;
+  }
+  else
+  if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight))
+  {
+    // MSIE 6+ in 'standards compliant mode'
+    winW = document.documentElement.clientWidth;
+    winH = document.documentElement.clientHeight;
+  }
+  else
+  if (document.body && (document.body.clientWidth || document.body.clientHeight))
+  {
+    // MSIE 4 compatible
+    winW = document.body.clientWidth;
+    winH = document.body.clientHeight;
+  }
+
+  return { w: winW, h: winH };
+}
+
+
 // Add or remove given CSS class to specified element
 function mapSetStyle(uid, ustyle, uset)
 {
@@ -56,40 +84,21 @@
 
 
 // Update the tooltip box
-function mapUpdateTooltip(e)
+function mapUpdateTooltip(ev)
 {
-  var x = document.all ? (window.event.x + document.body.scrollLeft) : e.pageX;
-  var y = document.all ? (window.event.y + document.body.scrollTop)  : e.pageY;
+  var x = document.all ? (window.event.x + document.body.scrollLeft) : ev.pageX;
+  var y = document.all ? (window.event.y + document.body.scrollTop)  : ev.pageY;
   if (mytt != null)
   {
-    var winW = 0, winH = 0;
+    const dim = mapGetWindowSize();
     var boxW = mytt.clientWidth + 25, boxH = mytt.clientHeight + 25;
 
-    if (typeof(window.innerWidth) == 'number')
-    {
-      // Non-MSIE
-      winW = window.innerWidth;
-      winH = window.innerHeight;
-    } else
-    if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight))
-    {
-      // MSIE 6+ in 'standards compliant mode'
-      winW = document.documentElement.clientWidth;
-      winH = document.documentElement.clientHeight;
-    } else
-    if (document.body && (document.body.clientWidth || document.body.clientHeight))
-    {
-      // MSIE 4 compatible
-      winW = document.body.clientWidth;
-      winH = document.body.clientHeight;
-    }
-
-    if (x + boxW + 15 >= winW)
+    if (x + boxW + 15 >= dim.w)
       x -= boxW;
     else
       x += 15;
 
-    if (y + boxH + 15 >= winH)
+    if (y + boxH + 15 >= dim.h)
       y -= boxH;
     else
       y += 15;