packery
Version:
Gapless, draggable grid layouts
164 lines (133 loc) • 5.07 kB
HTML
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width" />
<title>save positions</title>
<style>
* { box-sizing: border-box; }
/* force scrollbar */
html { overflow-y: scroll; }
.grid {
opacity: 0;
transition: opacity 0.2s;
}
.grid.is-img-loaded {
opacity: 1;
}
.grid-sizer, .grid-item {
width: 20%;
}
.grid-item {
float: left;
}
.grid-item.is-dragging,
.grid-item.is-positioning-post-drag {
opacity: 0.8;
z-index: 2;
}
.grid-item--width2 {
width: 40%;
}
.grid-item img {
display: block;
max-width: 100%;
}
.packery-drop-placeholder {
background: white;
opacity: 0.5;
outline: 3px dashed black;
outline-offset: -6px;
-webkit-transition: -webkit-transform 0.2s;
transition: transform 0.2s;
}
</style>
</head>
<body>
<h1>save positions</h1>
<div class="grid">
<div class="grid-sizer"></div>
<div class="grid-item grid-item--width2" data-item-id="1"><img src="http://i.imgur.com/9xYjgCk.jpg" /></div>
<div class="grid-item" data-item-id="2"><img src="http://i.imgur.com/OZmQIVL.jpg" /></div>
<div class="grid-item" data-item-id="3"><img src="http://i.imgur.com/lBKi66i.jpg" /></div>
<div class="grid-item" data-item-id="4"><img src="http://i.imgur.com/LFelADP.jpg" /></div>
<div class="grid-item" data-item-id="5"><img src="http://i.imgur.com/ERMbVdn.jpg" /></div>
<div class="grid-item" data-item-id="6"><img src="http://i.imgur.com/4ifgQaR.jpg" /></div>
<div class="grid-item grid-item--width2" data-item-id="7"><img src="http://i.imgur.com/8lEJtbg.jpg" /></div>
<div class="grid-item" data-item-id="8"><img src="http://i.imgur.com/LkmcILl.jpg" /></div>
<div class="grid-item" data-item-id="9"><img src="http://i.imgur.com/aboaFoB.jpg" /></div>
<div class="grid-item" data-item-id="10"><img src="http://i.imgur.com/PgmEBSB.jpg" /></div>
<div class="grid-item" data-item-id="11"><img src="http://i.imgur.com/bAZWoqx.jpg" /></div>
<div class="grid-item" data-item-id="12"><img src="http://i.imgur.com/UORFJ3w.jpg" /></div>
<div class="grid-item" data-item-id="13"><img src="http://i.imgur.com/hODreXI.jpg" /></div>
<div class="grid-item" data-item-id="14"><img src="http://i.imgur.com/bwy74ok.jpg" /></div>
<div class="grid-item" data-item-id="15"><img src="http://i.imgur.com/q9zO6tw.jpg" /></div>
<div class="grid-item" data-item-id="16"><img src="http://i.imgur.com/r8p3Xgq.jpg" /></div>
<div class="grid-item" data-item-id="17"><img src="http://i.imgur.com/4O7U1Ob.jpg" /></div>
</div>
<script src="../bower_components/get-size/get-size.js"></script>
<script src="../bower_components/desandro-matches-selector/matches-selector.js"></script>
<script src="../bower_components/ev-emitter/ev-emitter.js"></script>
<script src="../bower_components/fizzy-ui-utils/utils.js"></script>
<script src="../bower_components/outlayer/item.js"></script>
<script src="../bower_components/outlayer/outlayer.js"></script>
<script src="../js/rect.js"></script>
<script src="../js/packer.js"></script>
<script src="../js/item.js"></script>
<script src="../js/packery.js"></script>
<script src="http://imagesloaded.desandro.com/imagesloaded.pkgd.js"></script>
<script src="../bower_components/unipointer/unipointer.js"></script>
<script src="../bower_components/unidragger/unidragger.js"></script>
<script src="../bower_components/draggabilly/draggabilly.js"></script>
<script>
var grid = document.querySelector('.grid');
var pckry = new Packery( grid, {
itemSelector: '.grid-item',
columnWidth: '.grid-sizer',
transitionDuration: '0.3s',
shiftPercentResize: true,
percentPosition: true,
initLayout: false
});
var itemElems = grid.querySelectorAll('.grid-item');
for ( var i=0; i < itemElems.length; i++ ) {
var itemElem = itemElems[i];
var draggie = new Draggabilly( itemElem );
pckry.bindDraggabillyEvents( draggie );
}
imagesLoaded( grid, function() {
grid.classList.add('is-img-loaded');
var itemPositions = localStorage.getItem( 'itemsShiftPositions' );
if ( itemPositions ) {
itemPositions = JSON.parse( itemPositions );
pckry._resetLayout();
// set item order and horizontal position from saved positions
pckry.items = itemPositions.map( function( itemPosition ) {
var itemElem = grid.querySelector('[data-item-id="' + itemPosition.id + '"]');
var item = pckry.getItem( itemElem );
item.rect.x = parseFloat( itemPosition.x ) * pckry.packer.width;
return item;
});
pckry.shiftLayout();
} else {
// if no initial positions, run packery layout
pckry.layout();
}
});
pckry.on( 'layoutComplete', savePositions );
pckry.on( 'dragItemPositioned', savePositions );
function savePositions() {
var positions = getItemsShiftPositions();
localStorage.setItem( 'itemsShiftPositions', JSON.stringify( positions ) );
}
function getItemsShiftPositions() {
return pckry.items.map( function( item ) {
return {
id: item.element.getAttribute('data-item-id'),
x: item.rect.x / pckry.packer.width
}
});
}
</script>
</body>
</html>