Drag and drop Interaction Mode: Intersect
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YUI is issued by Yahoo! under the BSD license above. Below is a list of certain publicly available software that is the source of intellectual property in YUI, along with the licensing terms that pertain to thosesources of IP. This list is for informational purposes only and is not intended to represent an exhaustive list of third party contributions to the YUI.
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Using Interaction Groups</title>
<style type="text/css">
/*margin and padding on body element
can introduce errors in determining
element position and are not recommended;
we turn them off as a foundation for YUI
CSS treatments. */
body {
margin:0;
padding:0;
}
</style>
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/fonts/fonts-min.css" />
<script type="text/javascript" src="yui_2.7.0b-lib/yahoo-dom-event/yahoo-dom-event.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/dragdrop/dragdrop-min.js"></script>
<!--begin custom header content for this example-->
<style type="text/css">
.slot { border:2px solid #aaaaaa; background-color:#dddddd; color:#666666; text-align:center; position: absolute; width:60px; height:60px; }
.player { border:2px solid #bbbbbb; color:#eeeeee; text-align:center; position: absolute; width:60px; height:60px; }
.target { border:2px solid #574188; background-color:#cccccc; text-align:center; position: absolute; width:60px; height:60px; }
#t1 { left: 10px; top: 0px; }
#t2 { left: 378px; top: 0px; }
#b1 { left: 84px; top: 50px; }
#b2 { left: 158px; top: 50px; }
#b3 { left: 232px; top: 50px; }
#b4 { left: 306px; top: 50px; }
#pt1 { background-color:#7E695E; left: 84px; top: 150px; }
#pt2 { background-color:#7E695E; left: 84px; top: 230px; }
#pb1 { background-color:#416153; left: 195px; top: 150px; }
#pb2 { background-color:#416153; left: 195px; top: 230px; }
#pboth1 { background-color:#552E37; left: 306px; top: 150px; }
#pboth2 { background-color:#552E37; left: 306px; top: 230px; }
#usercontrols {
top: -36px;
}
#workarea {
position: relative;
height: 300px;
}
</style>
<!--end custom header content for this example-->
</head>
<body class=" yui-skin-sam">
<h1>Using Interaction Groups</h1>
<div class="exampleIntro">
<p>Using interaction groups, this example demonstrates how to
tie into the <a href="http://developer.yahoo.com/yui/dragdrop/">Drag & Drop Utility</a>'s interesting moments to provide visual
affordances for the current drag operation.</p>
</div>
<!--BEGIN SOURCE CODE FOR EXAMPLE -->
<div id="usercontrols">
Interaction Mode:
<select id="ddmode" >
<option value="0" selected>Point</option>
<option value="1">Intersect</option>
</select>
</div>
<div id="workarea">
<div class="slot" id="t1" >1</div>
<div class="slot" id="t2" >2</div>
<div class="slot" id="b1" >3</div>
<div class="slot" id="b2" >4</div>
<div class="slot" id="b3" >5</div>
<div class="slot" id="b4" >6</div>
<div class="player" id="pt1" >1</div>
<div class="player" id="pt2" >2</div>
<div class="player" id="pb1" >3</div>
<div class="player" id="pb2" >4</div>
<div class="player" id="pboth1" >5</div>
<div class="player" id="pboth2" >6</div>
</div>
<script type="text/javascript">
(function() {
YAHOO.example.DDPlayer = function(id, sGroup, config) {
YAHOO.example.DDPlayer.superclass.constructor.apply(this, arguments);
this.initPlayer(id, sGroup, config);
};
YAHOO.extend(YAHOO.example.DDPlayer, YAHOO.util.DDProxy, {
TYPE: "DDPlayer",
initPlayer: function(id, sGroup, config) {
if (!id) {
return;
}
var el = this.getDragEl()
YAHOO.util.Dom.setStyle(el, "borderColor", "transparent");
YAHOO.util.Dom.setStyle(el, "opacity", 0.76);
// specify that this is not currently a drop target
this.isTarget = false;
this.originalStyles = [];
this.type = YAHOO.example.DDPlayer.TYPE;
this.slot = null;
this.startPos = YAHOO.util.Dom.getXY( this.getEl() );
YAHOO.log(id + " startpos: " + this.startPos, "info", "example");
},
startDrag: function(x, y) {
YAHOO.log(this.id + " startDrag", "info", "example");
var Dom = YAHOO.util.Dom;
var dragEl = this.getDragEl();
var clickEl = this.getEl();
dragEl.innerHTML = clickEl.innerHTML;
dragEl.className = clickEl.className;
Dom.setStyle(dragEl, "color", Dom.getStyle(clickEl, "color"));
Dom.setStyle(dragEl, "backgroundColor", Dom.getStyle(clickEl, "backgroundColor"));
Dom.setStyle(clickEl, "opacity", 0.1);
var targets = YAHOO.util.DDM.getRelated(this, true);
YAHOO.log(targets.length + " targets", "info", "example");
for (var i=0; i<targets.length; i++) {
var targetEl = this.getTargetDomRef(targets[i]);
if (!this.originalStyles[targetEl.id]) {
this.originalStyles[targetEl.id] = targetEl.className;
}
targetEl.className = "target";
}
},
getTargetDomRef: function(oDD) {
if (oDD.player) {
return oDD.player.getEl();
} else {
return oDD.getEl();
}
},
endDrag: function(e) {
// reset the linked element styles
YAHOO.util.Dom.setStyle(this.getEl(), "opacity", 1);
this.resetTargets();
},
resetTargets: function() {
// reset the target styles
var targets = YAHOO.util.DDM.getRelated(this, true);
for (var i=0; i<targets.length; i++) {
var targetEl = this.getTargetDomRef(targets[i]);
var oldStyle = this.originalStyles[targetEl.id];
if (oldStyle) {
targetEl.className = oldStyle;
}
}
},
onDragDrop: function(e, id) {
// get the drag and drop object that was targeted
var oDD;
if ("string" == typeof id) {
oDD = YAHOO.util.DDM.getDDById(id);
} else {
oDD = YAHOO.util.DDM.getBestMatch(id);
}
var el = this.getEl();
// check if the slot has a player in it already
if (oDD.player) {
// check if the dragged player was already in a slot
if (this.slot) {
// check to see if the player that is already in the
// slot can go to the slot the dragged player is in
// YAHOO.util.DDM.isLegalTarget is a new method
if ( YAHOO.util.DDM.isLegalTarget(oDD.player, this.slot) ) {
YAHOO.log("swapping player positions", "info", "example");
YAHOO.util.DDM.moveToEl(oDD.player.getEl(), el);
this.slot.player = oDD.player;
oDD.player.slot = this.slot;
} else {
YAHOO.log("moving player in slot back to start", "info", "example");
YAHOO.util.Dom.setXY(oDD.player.getEl(), oDD.player.startPos);
this.slot.player = null;
oDD.player.slot = null
}
} else {
// the player in the slot will be moved to the dragged
// players start position
oDD.player.slot = null;
YAHOO.util.DDM.moveToEl(oDD.player.getEl(), el);
}
} else {
// Move the player into the emply slot
// I may be moving off a slot so I need to clear the player ref
if (this.slot) {
this.slot.player = null;
}
}
YAHOO.util.DDM.moveToEl(el, oDD.getEl());
this.resetTargets();
this.slot = oDD;
this.slot.player = this;
},
swap: function(el1, el2) {
var Dom = YAHOO.util.Dom;
var pos1 = Dom.getXY(el1);
var pos2 = Dom.getXY(el2);
Dom.setXY(el1, pos2);
Dom.setXY(el2, pos1);
},
onDragOver: function(e, id) {
},
onDrag: function(e, id) {
}
});
var slots = [], players = [],
Event = YAHOO.util.Event, DDM = YAHOO.util.DDM;
Event.onDOMReady(function() {
// slots
slots[0] = new YAHOO.util.DDTarget("t1", "topslots");
slots[1] = new YAHOO.util.DDTarget("t2", "topslots");
slots[2] = new YAHOO.util.DDTarget("b1", "bottomslots");
slots[3] = new YAHOO.util.DDTarget("b2", "bottomslots");
slots[4] = new YAHOO.util.DDTarget("b3", "bottomslots");
slots[5] = new YAHOO.util.DDTarget("b4", "bottomslots");
// players
players[0] = new YAHOO.example.DDPlayer("pt1", "topslots");
players[1] = new YAHOO.example.DDPlayer("pt2", "topslots");
players[2] = new YAHOO.example.DDPlayer("pb1", "bottomslots");
players[3] = new YAHOO.example.DDPlayer("pb2", "bottomslots");
players[4] = new YAHOO.example.DDPlayer("pboth1", "topslots");
players[4].addToGroup("bottomslots");
players[5] = new YAHOO.example.DDPlayer("pboth2", "topslots");
players[5].addToGroup("bottomslots");
DDM.mode = document.getElementById("ddmode").selectedIndex;
Event.on("ddmode", "change", function(e) {
YAHOO.util.DDM.mode = this.selectedIndex;
});
});
})();
</script>
<!--END SOURCE CODE FOR EXAMPLE -->
</body>
</html>
<!-- presentbright.corp.yahoo.com uncompressed/chunked Thu Feb 19 10:53:13 PST 2009 -->
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