node-screen.js revision 1909339da3105dc509908ff39ecc298f2f94f446
YUI.add('node-screen', function(Y) {
/**
* Extended Node interface for managing regions and screen positioning.
* Adds support for positioning elements and normalizes window size and scroll detection.
* @module node
* @submodule node-screen
*/
// these are all "safe" returns, no wrapping required
Y.each([
/**
* Returns the inner width of the viewport (exludes scrollbar).
* @config winWidth
* @for Node
* @type {Int}
*/
'winWidth',
/**
* Returns the inner height of the viewport (exludes scrollbar).
* @config winHeight
* @type {Int}
*/
'winHeight',
/**
* Document width
* @config winHeight
* @type {Int}
*/
'docWidth',
/**
* Document height
* @config docHeight
* @type {Int}
*/
'docHeight',
/**
* Amount page has been scroll vertically
* @config docScrollX
* @type {Int}
*/
'docScrollX',
/**
* Amount page has been scroll horizontally
* @config docScrollY
* @type {Int}
*/
'docScrollY'
],
function(name) {
Y.Node.ATTRS[name] = {
getter: function() {
var args = Array.prototype.slice.call(arguments);
args.unshift(Y.Node.getDOMNode(this));
return Y.DOM[name].apply(this, args);
}
};
}
);
Y.Node.ATTRS.scrollLeft = {
getter: function() {
var node = Y.Node.getDOMNode(this);
return ('scrollLeft' in node) ? node.scrollLeft : Y.DOM.docScrollX(node);
},
setter: function(val) {
var node = Y.Node.getDOMNode(this);
if (node) {
if ('scrollLeft' in node) {
node.scrollLeft = val;
} else if (node.document || node.nodeType === 9) {
Y.DOM._getWin(node).scrollTo(val, Y.DOM.docScrollY(node)); // scroll window if win or doc
}
} else {
}
}
};
Y.Node.ATTRS.scrollTop = {
getter: function() {
var node = Y.Node.getDOMNode(this);
return ('scrollTop' in node) ? node.scrollTop : Y.DOM.docScrollY(node);
},
setter: function(val) {
var node = Y.Node.getDOMNode(this);
if (node) {
if ('scrollTop' in node) {
node.scrollTop = val;
} else if (node.document || node.nodeType === 9) {
Y.DOM._getWin(node).scrollTo(Y.DOM.docScrollX(node), val); // scroll window if win or doc
}
} else {
}
}
};
Y.Node.importMethod(Y.DOM, [
/**
* Gets the current position of the node in page coordinates.
* @method getXY
* @for Node
* @return {Array} The XY position of the node
*/
'getXY',
/**
* Set the position of the node in page coordinates, regardless of how the node is positioned.
* @method setXY
* @param {Array} xy Contains X & Y values for new position (coordinates are page-based)
* @chainable
*/
'setXY',
/**
* Gets the current position of the node in page coordinates.
* @method getX
* @return {Int} The X position of the node
*/
'getX',
/**
* Set the position of the node in page coordinates, regardless of how the node is positioned.
* @method setX
* @param {Int} x X value for new position (coordinates are page-based)
* @chainable
*/
'setX',
/**
* Gets the current position of the node in page coordinates.
* @method getY
* @return {Int} The Y position of the node
*/
'getY',
/**
* Set the position of the node in page coordinates, regardless of how the node is positioned.
* @method setY
* @param {Int} y Y value for new position (coordinates are page-based)
* @chainable
*/
'setY',
/**
* Swaps the XY position of this node with another node.
* @method swapXY
* @param {Y.Node || HTMLElement} otherNode The node to swap with.
* @chainable
*/
'swapXY'
]);
/**
* @module node
* @submodule node-screen
*/
/**
* Returns a region object for the node
* @config region
* @for Node
* @type Node
*/
Y.Node.ATTRS.region = {
getter: function() {
var node = this.getDOMNode(),
region;
if (node && !node.tagName) {
if (node.nodeType === 9) { // document
node = node.documentElement;
}
}
if (Y.DOM.isWindow(node)) {
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 (Y.instanceOf(node2, 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 (Y.instanceOf(node2, Y.Node)) { // might be a region object
node2 = Y.Node.getDOMNode(node2);
}
return Y.DOM.inRegion(node1, node2, all, altRegion);
};
}, '@VERSION@' ,{requires:['node-base', 'dom-screen']});