suzanne.soy/scribble-math
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Merge branch 'issue435' into develop

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Resolves issue #435.
This commit is contained in:
Davide P. Cervone 2013-04-19 09:28:46 -04:00
commit 796c6b484d
1 changed files with 40 additions and 10 deletions
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50
unpacked/extensions/MathZoom.js
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@ -23,7 +23,7 @@
*/
(function (HUB,HTML,AJAX,HTMLCSS,nMML) {
var VERSION = "2.1";
var VERSION = "2.1.1";
var CONFIG = HUB.CombineConfig("MathZoom",{
styles: {
@ -225,24 +225,54 @@
//
Resize: function (event) {
if (ZOOM.onresize) {ZOOM.onresize(event)}
var x = 0, y = 0, obj,
div = document.getElementById("MathJax_ZoomFrame"),
var div = document.getElementById("MathJax_ZoomFrame"),
overlay = document.getElementById("MathJax_ZoomOverlay");
obj = div; while (obj.offsetParent) {x += obj.offsetLeft; obj = obj.offsetParent}
if (ZOOM.operaPositionBug) {div.style.border = "1px solid"} // to get vertical position right
obj = div; while (obj.offsetParent) {y += obj.offsetTop; obj = obj.offsetParent}
if (ZOOM.operaPositionBug) {div.style.border = ""}
overlay.style.left = (-x)+"px"; overlay.style.top = (-y)+"px";
var xy = ZOOM.getXY(div);
var obj = div.parentNode, overflow = ZOOM.getOverflow(obj);
while (obj.parentNode && overflow === "visible") {
obj = obj.parentNode;
overflow = ZOOM.getOverflow(obj);
}
if (overflow !== "visible") {
overlay.scroll_parent = obj; // Save this for future reference.
var XY = ZOOM.getXY(obj); // Remove container position
xy.x -= XY.x; xy.y -= XY.y;
XY = ZOOM.getBorder(obj); // Remove container border
xy.x -= XY.x; xy.y -= XY.y;
}
overlay.style.left = (-xy.x)+"px"; overlay.style.top = (-xy.y)+"px";
if (ZOOM.msiePositionBug) {setTimeout(ZOOM.SetWH,0)} else {ZOOM.SetWH()}
return {x:x, y:y};
return xy;
},
SetWH: function () {
var overlay = document.getElementById("MathJax_ZoomOverlay");
overlay.style.width = overlay.style.height = "1px"; // so scrollWidth/Height will be right below
var doc = document.documentElement || document.body;
var doc = overlay.scroll_parent || document.documentElement || document.body;
overlay.style.width = doc.scrollWidth + "px";
overlay.style.height = Math.max(doc.clientHeight,doc.scrollHeight) + "px";
},
//
// Look up CSS properties (use getComputeStyle if available, or currentStyle if not)
//
getOverflow: (window.getComputedStyle ?
function (obj) {return getComputedStyle(obj).overflow} :
function (obj) {return (obj.currentStyle||{overflow:"visible"}).overflow}),
getBorder: function (obj) {
var style = (window.getComputedStyle ? getComputedStyle(obj) :
(object.currentStyle || {borderLeftWidth:0,borderTopWidth:0}));
return {x:parseInt(style.borderLeftWidth), y:parseInt(style.borderTopWidth)};
},
//
// Get the position of an element on the page
//
getXY: function (div) {
var x = 0, y = 0, obj;
obj = div; while (obj.offsetParent) {x += obj.offsetLeft; obj = obj.offsetParent}
if (ZOOM.operaPositionBug) {div.style.border = "1px solid"} // to get vertical position right
obj = div; while (obj.offsetParent) {y += obj.offsetTop; obj = obj.offsetParent}
if (ZOOM.operaPositionBug) {div.style.border = ""}
return {x:x, y:y};
},
//
// Remove zoom display and event handlers