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nested_constraint.html
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nested_constraint.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Constraint nested grids demo</title>
<link rel="stylesheet" href="demo.css"/>
<link rel="stylesheet" href="../dist/gridstack-extra.min.css"/>
<script src="../dist/gridstack-all.js"></script>
<style type="text/css">
.grid-stack-item.sub .grid-stack-item-content {
background: lightpink;
}
</style>
</head>
<body>
<div class="container-fluid">
<h1>Constraint Nested grids demo</h1>
<p>This example shows sub-grids only accepting pink items, while parent accept all.</p>
<a class="btn btn-primary" onClick="addNested()" href="#">Add Widget</a>
<a class="btn btn-primary" onClick="addNewWidget('.sub1')" href="#">Add Widget Grid1</a>
<a class="btn btn-primary" onClick="addNewWidget('.sub2')" href="#">Add Widget Grid2</a>
<span>entire save/re-create:</span>
<a class="btn btn-primary" onClick="save()" href="#">Save</a>
<a class="btn btn-primary" onClick="destroy()" href="#">Destroy</a>
<a class="btn btn-primary" onClick="load()" href="#">Create</a>
<span>partial save/load:</span>
<a class="btn btn-primary" onClick="save(true, false)" href="#">Save list</a>
<a class="btn btn-primary" onClick="save(false, false)" href="#">Save no content</a>
<a class="btn btn-primary" onClick="destroy(false)" href="#">Clear</a>
<a class="btn btn-primary" onClick="load(false)" href="#">Load</a>
<br><br>
<!-- grid will be added here -->
</div>
<script type="text/javascript">
let sub1 = [ {x:0, y:0}, {x:1, y:0}, {x:2, y:0}, {x:3, y:0}, {x:0, y:1}, {x:1, y:1}];
let sub2 = [ {x:0, y:0}, {x:0, y:1, w:2}];
let count = 0;
[...sub1, ...sub2].forEach(d => d.content = String(count++));
let subOptions = {
cellHeight: 50,
column: 'auto', // size to match container. make sure to include gridstack-extra.min.css
itemClass: 'sub', // style sub items differently and use to prevent dragging in/out
acceptWidgets: '.grid-stack-item.sub', // only pink sub items can be inserted
margin: 2,
minRow: 1, // don't collapse when empty
};
let options = { // main grid options
cellHeight: 50,
margin: 5,
minRow: 2, // don't collapse when empty
acceptWidgets: true,
id: 'main',
children: [
{y:0, content: 'regular item'},
{x:1, w:4, h:4, subGrid: {children: sub1, class: 'sub1', ...subOptions}},
{x:5, w:4, h:4, subGrid: {children: sub2, class: 'sub2', ...subOptions}},
]
};
// create and load it all from JSON above
let grid = GridStack.addGrid(document.querySelector('.container-fluid'), options);
addNested = function() {
grid.addWidget({x:0, y:100, content:"new item"});
}
addNewWidget = function(selector) {
let subGrid = document.querySelector(selector).gridstack;
let node = {
x: Math.round(6 * Math.random()),
y: Math.round(5 * Math.random()),
w: Math.round(1 + 1 * Math.random()),
h: Math.round(1 + 1 * Math.random()),
content: String(count++)
};
subGrid.addWidget(node);
return false;
};
save = function(content = true, full = true) {
options = grid.save(content, full);
console.log(options);
// console.log(JSON.stringify(options));
}
destroy = function(full = true) {
if (full) {
grid.destroy();
grid = undefined;
} else {
grid.removeAll();
}
}
load = function(full = true) {
if (full) {
grid = GridStack.addGrid(document.querySelector('.container-fluid'), options);
} else {
grid.load(options);
}
}
</script>
</body>
</html>