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Position: Fix single var, whitespace. Clone targetOffset to avoid reading that twice

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Jörn Zaefferer 2012-04-10 23:41:41 +02:00
parent e5ba731019
commit c0cceee8e4
1 changed files with 19 additions and 15 deletions
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34
ui/jquery.ui.position.js vendored
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@ -69,26 +69,29 @@ $.fn.position = function( options ) {
atOffset,
targetWidth,
targetHeight,
targetOffset,
basePosition;
if ( targetElem.nodeType === 9 ) {
targetWidth = target.width();
targetHeight = target.height();
basePosition = { top: 0, left: 0 };
targetOffset = { top: 0, left: 0 };
} else if ( $.isWindow( targetElem ) ) {
targetWidth = target.width();
targetHeight = target.height();
basePosition = { top: target.scrollTop(), left: target.scrollLeft() };
targetOffset = { top: target.scrollTop(), left: target.scrollLeft() };
} else if ( targetElem.preventDefault ) {
// force left top to allow flipping
options.at = "left top";
targetWidth = targetHeight = 0;
basePosition = { top: options.of.pageY, left: options.of.pageX };
targetOffset = { top: options.of.pageY, left: options.of.pageX };
} else {
targetWidth = target.outerWidth();
targetHeight = target.outerHeight();
basePosition = target.offset();
targetOffset = target.offset();
}
// clone to reuse original targetOffset later
basePosition = $.extend( {}, targetOffset );
// force my and at to have valid horizontal and vertical positions
// if a value is missing or invalid, it will be converted to center
@ -166,7 +169,8 @@ $.fn.position = function( options ) {
parseInt( offsets.my[ 1 ], 10 ) *
( rpercent.test( offsets.my[ 1 ] ) ? elem.outerHeight() / 100 : 1 )
],
collisionPosition;
collisionPosition,
using = options.using;
if ( options.my[ 0 ] === "right" ) {
position.left -= elemWidth;
@ -216,20 +220,19 @@ $.fn.position = function( options ) {
if ( $.fn.bgiframe ) {
elem.bgiframe();
}
var using = options.using;
if ( using ) {
// we have to proxy, as jQuery.offset.setOffset throws away other props then left/top
// we have to proxy, as jQuery.offset.setOffset throws away props other than left/top
options.using = function( props ) {
// can't use basePosition, as that gets modified
var targetOffset = target.offset(),
left = targetOffset.left - props.left,
var left = targetOffset.left - props.left,
right = (targetOffset.left + targetWidth) - (props.left + elemWidth),
top = targetOffset.top - props.top,
bottom = (targetOffset.top + targetHeight) - (props.top + elemHeight);
var feedback = {};
feedback.horizontal = right < 0 ? "left" : left > 0 ? "right" : "center";
feedback.vertical = bottom < 0 ? "top" : top > 0 ? "bottom" : "middle";
if (Math.max(Math.abs(left), Math.abs(right)) > Math.max(Math.abs(top), Math.abs(bottom))) {
bottom = (targetOffset.top + targetHeight) - (props.top + elemHeight),
feedback = {
horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
};
if ( Math.max( Math.abs( left ), Math.abs( right ) ) > Math.max( Math.abs( top ), Math.abs( bottom ) ) ) {
feedback.important = "horizontal";
} else {
feedback.important = "vertical";
@ -237,6 +240,7 @@ $.fn.position = function( options ) {
using.call( this, props, feedback );
};
}
elem.offset( $.extend( position, { using: options.using } ) );
});
};