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Merge pull request #1556 from dpvc/issue1434

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Improve menu placement.  #1434
This commit is contained in:
Davide P. Cervone 2016-08-05 10:25:00 -04:00 committed by GitHub
commit c45629f7a0
1 changed files with 6 additions and 3 deletions
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9
unpacked/extensions/MathMenu.js
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@ -313,6 +313,9 @@
this.posted = true;
if (menu.offsetWidth) menu.style.width = (menu.offsetWidth+2) + "px";
var x = event.pageX, y = event.pageY;
var bbox = document.body.getBoundingClientRect();
var styles = (window.getComputedStyle ? window.getComputedStyle(document.body) : {marginLeft: "0px"});
var bodyRight = bbox.right - Math.min(0,bbox.left) + parseFloat(styles.marginLeft);
if (!x && !y && "clientX" in event) {
x = event.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
y = event.clientY + document.body.scrollTop + document.documentElement.scrollTop;
@ -326,8 +329,8 @@
x = (rect.right + rect.left) / 2 + offsetX;
y = (rect.bottom + rect.top) / 2 + offsetY;
}
if (x + menu.offsetWidth > document.body.offsetWidth - this.margin)
{x = document.body.offsetWidth - menu.offsetWidth - this.margin}
if (x + menu.offsetWidth > bodyRight - this.margin)
{x = bodyRight - menu.offsetWidth - this.margin}
if (MENU.isMobile) {x = Math.max(5,x-Math.floor(menu.offsetWidth/2)); y -= 20}
MENU.skipUp = event.isContextMenu;
} else {
@ -339,7 +342,7 @@
}
if (!MENU.isMobile) {
if ((MENU.isRTL && x - mw - menu.offsetWidth > this.margin) ||
(!MENU.isRTL && x + menu.offsetWidth > document.body.offsetWidth - this.margin))
(!MENU.isRTL && x + menu.offsetWidth > bodyRight - this.margin))
{side = "right"; x = Math.max(this.margin,x - mw - menu.offsetWidth + 6)}
}
if (!isPC) {