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Make too tall menus scrollable

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This commit is contained in:
buinsky
2016-07-18 22:33:16 +03:00
parent 134e4c1eb9
commit 3dfcd6db6a
4 changed files with 16 additions and 4 deletions
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11
src/webui/www/public/scripts/contextmenu.js
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@@ -57,6 +57,11 @@ var ContextMenu = new Class({
adjustMenuPosition: function(e) {
this.updateMenuItems();
var scrollableMenuMaxHeight = document.documentElement.clientHeight * 0.75;
if (this.menu.hasClass('scrollableMenu'))
this.menu.setStyle('max-height', scrollableMenuMaxHeight);
// draw the menu off-screen to know the menu dimentions
this.menu.setStyles({
left: '-999em',
@@ -69,7 +74,7 @@ var ContextMenu = new Class({
if (xPos + this.menu.offsetWidth > document.documentElement.clientWidth)
xPos -= this.menu.offsetWidth;
if (yPos + this.menu.offsetHeight > document.documentElement.clientHeight)
yPos -= this.menu.offsetHeight;
yPos = document.documentElement.clientHeight - this.menu.offsetHeight;
if (xPos < 0)
xPos = 0;
if (yPos < 0)
@@ -85,6 +90,8 @@ var ContextMenu = new Class({
var uls = this.menu.getElementsByTagName('ul');
for (var i = 0; i < uls.length; i++) {
var ul = uls[i];
if (ul.hasClass('scrollableMenu'))
ul.setStyle('max-height', scrollableMenuMaxHeight);
var rectParent = ul.parentNode.getBoundingClientRect();
var xPosOrigin = rectParent.left;
var yPosOrigin = rectParent.bottom;
@@ -93,7 +100,7 @@ var ContextMenu = new Class({
if (xPos + ul.offsetWidth > document.documentElement.clientWidth)
xPos -= (ul.offsetWidth + rectParent.width - 2);
if (yPos + ul.offsetHeight > document.documentElement.clientHeight)
yPos -= (ul.offsetHeight - rectParent.height - 2);
yPos = document.documentElement.clientHeight - ul.offsetHeight;
if (xPos < 0)
xPos = 0;
if (yPos < 0)