node-region.js revision b0614bd702ed299874c87fd5d4d48bccda498c73
/**
* Returns a region object for the node
* @config region
* @for Node
* @type Node
*/
Y.Node.ATTRS.region = {
getter: function() {
var node = Y.Node.getDOMNode(this),
region;
if (node && !node.tagName) {
if (node.nodeType === 9) { // document
node = node.documentElement;
}
}
if (node.alert) {
region = Y.DOM.viewportRegion(node);
} else {
region = Y.DOM.region(node);
}
return region;
}
};
/**
* Returns a region object for the node's viewport
* @config viewportRegion
* @type Node
*/
Y.Node.ATTRS.viewportRegion = {
getter: function() {
return Y.DOM.viewportRegion(Y.Node.getDOMNode(this));
}
};
Y.Node.importMethod(Y.DOM, 'inViewportRegion');
// these need special treatment to extract 2nd node arg
/**
* Compares the intersection of the node with another node or region
* @method intersect
* @for Node
* @param {Node|Object} node2 The node or region to compare with.
* @param {Object} altRegion An alternate region to use (rather than this node's).
* @return {Object} An object representing the intersection of the regions.
*/
Y.Node.prototype.intersect = function(node2, altRegion) {
var node1 = Y.Node.getDOMNode(this);
if (node2 instanceof Y.Node) { // might be a region object
node2 = Y.Node.getDOMNode(node2);
}
return Y.DOM.intersect(node1, node2, altRegion);
};
/**
* Determines whether or not the node is within the giving region.
* @method inRegion
* @param {Node|Object} node2 The node or region to compare with.
* @param {Boolean} all Whether or not all of the node must be in the region.
* @param {Object} altRegion An alternate region to use (rather than this node's).
* @return {Object} An object representing the intersection of the regions.
*/
Y.Node.prototype.inRegion = function(node2, all, altRegion) {
var node1 = Y.Node.getDOMNode(this);
if (node2 instanceof Y.Node) { // might be a region object
node2 = Y.Node.getDOMNode(node2);
}
return Y.DOM.inRegion(node1, node2, all, altRegion);
};