JavaScript DHTML/Ajax Layer/Drag Constrain
Содержание
Drag and drop: constrain to parent element
<source lang="html4strict">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head>
<title>script.aculo.us Drag and drop functional test file</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<script src="./scriptaculous-js-1.6.4src/prototype.js" type="text/javascript"></script>
<script src="./scriptaculous-js-1.6.4src/scriptaculous.js" type="text/javascript"></script>
<script src="./scriptaculous-js-1.6.4src/unittest.js" type="text/javascript"></script>
<style type="text/css" media="screen">
div.box { background: green; width:100px; height:100px }
div.box-container { background: yellow; width:200px; height:200px }
</style>
</head> <body>
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)
<script type="text/javascript" language="javascript" charset="utf-8">
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
});
</script>
</body> </html>
</source>
<A href="http://www.wbex.ru/Code/JavaScriptDownload/scriptaculous-js-1.6.4.zip">scriptaculous-js-1.6.4.zip( 139 k)</a>
Drag and drop: snap 25
<source lang="html4strict">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head>
<title>script.aculo.us Drag and drop functional test file</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<script src="./scriptaculous-js-1.6.4src/prototype.js" type="text/javascript"></script>
<script src="./scriptaculous-js-1.6.4src/scriptaculous.js" type="text/javascript"></script>
<script src="./scriptaculous-js-1.6.4src/unittest.js" type="text/javascript"></script>
<style type="text/css" media="screen">
div.box { background: green; width:100px; height:100px }
div.box-container { background: yellow; width:200px; height:200px }
</style>
</head> <body>
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)
<script type="text/javascript" language="javascript" charset="utf-8">
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
});
</script>
</body> </html>
</source>
<A href="http://www.wbex.ru/Code/JavaScriptDownload/scriptaculous-js-1.6.4.zip">scriptaculous-js-1.6.4.zip( 139 k)</a>
Drag and drop: snap to a box
<source lang="html4strict">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head>
<title>script.aculo.us Drag and drop functional test file</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<script src="./scriptaculous-js-1.6.4src/prototype.js" type="text/javascript"></script>
<script src="./scriptaculous-js-1.6.4src/scriptaculous.js" type="text/javascript"></script>
<script src="./scriptaculous-js-1.6.4src/unittest.js" type="text/javascript"></script>
<style type="text/css" media="screen">
div.box { background: green; width:100px; height:100px }
div.box-container { background: yellow; width:200px; height:200px }
</style>
</head> <body>
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)
<script type="text/javascript" language="javascript" charset="utf-8">
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
});
</script>
</body> </html>
</source>
<A href="http://www.wbex.ru/Code/JavaScriptDownload/scriptaculous-js-1.6.4.zip">scriptaculous-js-1.6.4.zip( 139 k)</a>
