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Added ability to toggle the Popover #721

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Added ability to toggle the Popover #721

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70a83a1
Modified showHidePopover to toggle the popover if already visible. A…
mmacmillan Dec 4, 2014
6979545
Added rapid-click protection that could cause the popover to get stuc…
mmacmillan Dec 4, 2014
f3c11cb
Minor changes to satisfy jshint
mmacmillan Dec 4, 2014
a7dd7f0
Minor changes to satisfy jscs
mmacmillan Dec 4, 2014
c5fd255
Added a global accessor for the popover implementation, POPOVER, allo…
mmacmillan Dec 5, 2014
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45 changes: 30 additions & 15 deletions js/popovers.js
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Expand Up @@ -10,6 +10,7 @@
'use strict';

var popover;
var listener;

var findPopovers = function (target) {
var i;
Expand All @@ -24,34 +25,36 @@
}
};

var hidePopover = function () {
popover.addEventListener('webkitTransitionEnd', (listener = onPopoverHidden));
popover.classList.remove('visible');
popover.parentNode.removeChild(backdrop);
};

var onPopoverHidden = function () {
popover.style.display = 'none';
popover.removeEventListener('webkitTransitionEnd', onPopoverHidden);
listener = popover.removeEventListener('webkitTransitionEnd', onPopoverHidden);
};

var backdrop = (function () {
var element = document.createElement('div');

element.classList.add('backdrop');

element.addEventListener('touchend', function () {
popover.addEventListener('webkitTransitionEnd', onPopoverHidden);
popover.classList.remove('visible');
popover.parentNode.removeChild(backdrop);
});
element.addEventListener('touchend', hidePopover);
element.addEventListener('click', hidePopover);

return element;
}());

var getPopover = function (e) {
var anchor = findPopovers(e.target);
var getPopover = function (e, id) {
var anchor = e && findPopovers(e.target);

if (!anchor || !anchor.hash || (anchor.hash.indexOf('/') > 0)) {
if ((!anchor || !anchor.hash || (anchor.hash.indexOf('/') > 0)) && !id) {
return;
}

try {
popover = document.querySelector(anchor.hash);
popover = document.querySelector(id || anchor.hash);
}
catch (error) {
popover = null;
Expand All @@ -68,13 +71,17 @@
return popover;
};

var showHidePopover = function (e) {
var popover = getPopover(e);
var showHidePopover = function (e, id) {
var popover = getPopover(e, id);

if (!popover) {
if (!popover || !!listener) {
return;
}

if (popover.classList.contains('visible')) {
return hidePopover();
}

popover.style.display = 'block';
popover.offsetHeight;
popover.classList.add('visible');
Expand All @@ -83,5 +90,13 @@
};

window.addEventListener('touchend', showHidePopover);

window.addEventListener('click', showHidePopover);
window.POPOVER = {
show: function (id) {
showHidePopover(null, id);
},
hide: function () {
popover && hidePopover();
}
};
}());