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Ensure that a given element always has the highest z-index
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| (function(){ | |
| // To see the elements with the highest z-index on a page | |
| var highestZindex = 0; | |
| var forEach = function (array, callback, scope) { | |
| for (var i = 0; i < array.length; i++) { | |
| callback.call(scope, i, array[i]); | |
| } | |
| }; | |
| var elements = []; | |
| forEach(document.querySelectorAll('*'), function (index, element) { | |
| zindex = getComputedStyle(element).getPropertyValue("z-index") | |
| if (['auto', 0].indexOf(zindex) === -1 && parseInt(zindex, 10) >= highestZindex) { | |
| elements.push({zindex: parseInt(zindex, 10), element: element}) | |
| highestZindex = parseInt(zindex, 10) | |
| } | |
| }); | |
| elements.forEach(function(item){ | |
| if (item.zindex === highestZindex) { | |
| console.log(item.element) | |
| console.log('zindex: ', item.zindex) | |
| } | |
| }) | |
| }()) | |
| // ensure that elements on the page do not have a | |
| // z-index higher than a given element. | |
| //var highestZindex = 0; | |
| //$('body').('*').each(function(index, el){ | |
| // highestZindex = $(el).css('z-index') || highestZindex; | |
| //}); | |
| $('.our-element-that-should-always-be-on-top').css({'z-index': highestZindex + 1}) |
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