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Add a fixedposition option #86

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Add a fixedposition option #86

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95 changes: 83 additions & 12 deletions jquery.popupoverlay.js
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,9 @@
options.background = false;
options.scrolllock = false;
}
if (options.fixedposition) {
options.backgroundactive = true;
}

if (options.backgroundactive) {
options.background = false;
Expand Down Expand Up @@ -156,7 +159,7 @@
if (options.type == 'overlay') {
$el.css({
textAlign: 'left',
position: 'relative',
position: options.fixedposition ? 'fixed' : 'relative',
verticalAlign: 'middle'
});

Expand Down Expand Up @@ -241,6 +244,22 @@
} else {
$wrapper.hide();
}

//we save the initial margins
$el.data('margins', {
top : $el.css('margin-top'),
bottom : $el.css('margin-bottom'),
left : $el.css('margin-left'),
right : $el.css('margin-right'),
});

if (options.backgroundactive &&
(options.horizontal == 'center' || options.vertical != 'top')) {
//we add a resize listner to resize the popup
$(window).resize(function() {
methods.show(el, undefined, true);
});
}
},

/**
Expand All @@ -249,10 +268,11 @@
* @param {object} el - popup instance DOM node
* @param {number} ordinal - order number of an `open` element
*/
show: function (el, ordinal) {
show: function (el, ordinal, resize) {
var $el = $(el);

if ($el.data('popup-visible')) return;
if ($el.data('popup-visible') && !resize) return;
if (!$el.data('popup-visible') && resize) return;

// Initialize if not initialized. Required for: $('#popup').popup('show')
if (!$el.data('popup-initialized')) {
Expand Down Expand Up @@ -343,15 +363,65 @@

if(options.backgroundactive){
//calculates the vertical align
$el.css({
top:(
$window.height() - (
$el.get(0).offsetHeight +
parseInt($el.css('margin-top'), 10) +
parseInt($el.css('margin-bottom'), 10)
)
)/2 +'px'
});
if (options.vertical == 'bottom') {
if (options.fixedposition) {
$el.css({
bottom:0
});
} else {
$el.css({
top:(
$window.height() - (
$el.get(0).offsetHeight +
parseInt($el.css('margin-top'), 10) +
parseInt($el.css('margin-bottom'), 10)
)
) +'px'
});
}
} else if (options.vertical == 'top') {
$el.css({
top:0
});
} else {
$el.css({
top:(
$window.height() - (
$el.get(0).offsetHeight +
parseInt($el.css('margin-top'), 10) +
parseInt($el.css('margin-bottom'), 10)
)
)/2 +'px'
});
}
if (options.fixedposition) {
if (options.horizontal == "left") {
$el.css({
'left':0
});
} else if (options.horizontal == "right") {
$el.css({
'right':0
});
} else {
//reset before calculate outerWidth
$el.css({
'margin-left' : $el.data('margins').left,
'margin-right' : $el.data('margins').right,
'position': 'relative',
'width':'auto'
});
var outerWidth = $el.outerWidth();
//calculates the left margin to center horizontaly
$el.css({
'margin-left' : -(outerWidth/2) +'px',
'margin-right' : (outerWidth*3/4) +'px',
'left':'50%',
'width' : outerWidth,
'position': 'fixed'
});
}
}
}

$el.css({
Expand Down Expand Up @@ -816,6 +886,7 @@
autoopen: false,
background: true,
backgroundactive: false,
fixedposition: false,
color: 'black',
opacity: '0.5',
horizontal: 'center',
Expand Down