Ajax Layer
JavaScript DHTML
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JavaScript DHTML
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Ajax Layer
- Drag and drop
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
script.aculo.us Drag and drop functional test file
div.box { background: green; width:100px; height:100px }
div.box-container { background: yellow; width:200px; height:200px }
script.aculo.us Drag and drop functional test file
Draggables/Droppables
Normal box
snap: 25
snap: [5,25]
snap: procedural (e.g. constrain to box)
snap: procedural (e.g. constrain to parent element)
new Draggable('box-normal',{snap:false,revert:true});
new Draggable('box-grid-numeric',{snap:25,revert:true});
new Draggable('box-grid-array',{snap:[5,25],revert:true});
new Draggable('box-grid-procedural',{
snap: function(x,y) {
return[
x<100 ? (x > 0 ? x : 0 ) : 100,
y<50 ? (y > 0 ? y : 0) : 50];
},
revert:true
});
new Draggable('box-grid-procedural-gets-draggable',{
snap: function(x,y,draggable) {
function constrain(n, lower, upper) {
if (n > upper) return upper;
else if (n < lower) return lower;
else return n;
}
element_dimensions = Element.getDimensions(draggable.element);
parent_dimensions = Element.getDimensions(draggable.element.parentNode);
return[
constrain(x, 0, parent_dimensions.width - element_dimensions.width),
constrain(y, 0, parent_dimensions.height - element_dimensions.height)];
},
revert:true
});