mirror of
https://github.com/jquery/jquery-ui.git
synced 2024-12-07 06:14:24 +00:00
cb69f0025f
Collapses "UI Core" and "Core" into just "Core". Fixes bad paths for CSS dependencies. Regressed when moving widgets into the widgets subfolder.
516 lines
15 KiB
JavaScript
516 lines
15 KiB
JavaScript
/*!
|
|
* jQuery UI Position @VERSION
|
|
* http://jqueryui.com
|
|
*
|
|
* Copyright jQuery Foundation and other contributors
|
|
* Released under the MIT license.
|
|
* http://jquery.org/license
|
|
*
|
|
* http://api.jqueryui.com/position/
|
|
*/
|
|
|
|
//>>label: Position
|
|
//>>group: Core
|
|
//>>description: Positions elements relative to other elements.
|
|
//>>docs: http://api.jqueryui.com/position/
|
|
//>>demos: http://jqueryui.com/position/
|
|
|
|
( function( factory ) {
|
|
if ( typeof define === "function" && define.amd ) {
|
|
|
|
// AMD. Register as an anonymous module.
|
|
define( [ "jquery", "./version" ], factory );
|
|
} else {
|
|
|
|
// Browser globals
|
|
factory( jQuery );
|
|
}
|
|
}( function( $ ) {
|
|
( function() {
|
|
var cachedScrollbarWidth, supportsOffsetFractions,
|
|
max = Math.max,
|
|
abs = Math.abs,
|
|
round = Math.round,
|
|
rhorizontal = /left|center|right/,
|
|
rvertical = /top|center|bottom/,
|
|
roffset = /[\+\-]\d+(\.[\d]+)?%?/,
|
|
rposition = /^\w+/,
|
|
rpercent = /%$/,
|
|
_position = $.fn.position;
|
|
|
|
// Support: IE <=9 only
|
|
supportsOffsetFractions = function() {
|
|
var element = $( "<div>" )
|
|
.css( "position", "absolute" )
|
|
.appendTo( "body" )
|
|
.offset( {
|
|
top: 1.5,
|
|
left: 1.5
|
|
} ),
|
|
support = element.offset().top === 1.5;
|
|
|
|
element.remove();
|
|
|
|
supportsOffsetFractions = function() {
|
|
return support;
|
|
};
|
|
|
|
return support;
|
|
};
|
|
|
|
function getOffsets( offsets, width, height ) {
|
|
return [
|
|
parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),
|
|
parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )
|
|
];
|
|
}
|
|
|
|
function parseCss( element, property ) {
|
|
return parseInt( $.css( element, property ), 10 ) || 0;
|
|
}
|
|
|
|
function getDimensions( elem ) {
|
|
var raw = elem[ 0 ];
|
|
if ( raw.nodeType === 9 ) {
|
|
return {
|
|
width: elem.width(),
|
|
height: elem.height(),
|
|
offset: { top: 0, left: 0 }
|
|
};
|
|
}
|
|
if ( $.isWindow( raw ) ) {
|
|
return {
|
|
width: elem.width(),
|
|
height: elem.height(),
|
|
offset: { top: elem.scrollTop(), left: elem.scrollLeft() }
|
|
};
|
|
}
|
|
if ( raw.preventDefault ) {
|
|
return {
|
|
width: 0,
|
|
height: 0,
|
|
offset: { top: raw.pageY, left: raw.pageX }
|
|
};
|
|
}
|
|
return {
|
|
width: elem.outerWidth(),
|
|
height: elem.outerHeight(),
|
|
offset: elem.offset()
|
|
};
|
|
}
|
|
|
|
$.position = {
|
|
scrollbarWidth: function() {
|
|
if ( cachedScrollbarWidth !== undefined ) {
|
|
return cachedScrollbarWidth;
|
|
}
|
|
var w1, w2,
|
|
div = $( "<div style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),
|
|
innerDiv = div.children()[ 0 ];
|
|
|
|
$( "body" ).append( div );
|
|
w1 = innerDiv.offsetWidth;
|
|
div.css( "overflow", "scroll" );
|
|
|
|
w2 = innerDiv.offsetWidth;
|
|
|
|
if ( w1 === w2 ) {
|
|
w2 = div[ 0 ].clientWidth;
|
|
}
|
|
|
|
div.remove();
|
|
|
|
return ( cachedScrollbarWidth = w1 - w2 );
|
|
},
|
|
getScrollInfo: function( within ) {
|
|
var overflowX = within.isWindow || within.isDocument ? "" :
|
|
within.element.css( "overflow-x" ),
|
|
overflowY = within.isWindow || within.isDocument ? "" :
|
|
within.element.css( "overflow-y" ),
|
|
hasOverflowX = overflowX === "scroll" ||
|
|
( overflowX === "auto" && within.width < within.element[ 0 ].scrollWidth ),
|
|
hasOverflowY = overflowY === "scroll" ||
|
|
( overflowY === "auto" && within.height < within.element[ 0 ].scrollHeight );
|
|
return {
|
|
width: hasOverflowY ? $.position.scrollbarWidth() : 0,
|
|
height: hasOverflowX ? $.position.scrollbarWidth() : 0
|
|
};
|
|
},
|
|
getWithinInfo: function( element ) {
|
|
var withinElement = $( element || window ),
|
|
isWindow = $.isWindow( withinElement[ 0 ] ),
|
|
isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9,
|
|
hasOffset = !isWindow && !isDocument;
|
|
return {
|
|
element: withinElement,
|
|
isWindow: isWindow,
|
|
isDocument: isDocument,
|
|
offset: hasOffset ? $( element ).offset() : { left: 0, top: 0 },
|
|
scrollLeft: withinElement.scrollLeft(),
|
|
scrollTop: withinElement.scrollTop(),
|
|
width: withinElement.outerWidth(),
|
|
height: withinElement.outerHeight()
|
|
};
|
|
}
|
|
};
|
|
|
|
$.fn.position = function( options ) {
|
|
if ( !options || !options.of ) {
|
|
return _position.apply( this, arguments );
|
|
}
|
|
|
|
// Make a copy, we don't want to modify arguments
|
|
options = $.extend( {}, options );
|
|
|
|
var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,
|
|
target = $( options.of ),
|
|
within = $.position.getWithinInfo( options.within ),
|
|
scrollInfo = $.position.getScrollInfo( within ),
|
|
collision = ( options.collision || "flip" ).split( " " ),
|
|
offsets = {};
|
|
|
|
dimensions = getDimensions( target );
|
|
if ( target[ 0 ].preventDefault ) {
|
|
|
|
// Force left top to allow flipping
|
|
options.at = "left top";
|
|
}
|
|
targetWidth = dimensions.width;
|
|
targetHeight = dimensions.height;
|
|
targetOffset = dimensions.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
|
|
$.each( [ "my", "at" ], function() {
|
|
var pos = ( options[ this ] || "" ).split( " " ),
|
|
horizontalOffset,
|
|
verticalOffset;
|
|
|
|
if ( pos.length === 1 ) {
|
|
pos = rhorizontal.test( pos[ 0 ] ) ?
|
|
pos.concat( [ "center" ] ) :
|
|
rvertical.test( pos[ 0 ] ) ?
|
|
[ "center" ].concat( pos ) :
|
|
[ "center", "center" ];
|
|
}
|
|
pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";
|
|
pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";
|
|
|
|
// Calculate offsets
|
|
horizontalOffset = roffset.exec( pos[ 0 ] );
|
|
verticalOffset = roffset.exec( pos[ 1 ] );
|
|
offsets[ this ] = [
|
|
horizontalOffset ? horizontalOffset[ 0 ] : 0,
|
|
verticalOffset ? verticalOffset[ 0 ] : 0
|
|
];
|
|
|
|
// Reduce to just the positions without the offsets
|
|
options[ this ] = [
|
|
rposition.exec( pos[ 0 ] )[ 0 ],
|
|
rposition.exec( pos[ 1 ] )[ 0 ]
|
|
];
|
|
} );
|
|
|
|
// Normalize collision option
|
|
if ( collision.length === 1 ) {
|
|
collision[ 1 ] = collision[ 0 ];
|
|
}
|
|
|
|
if ( options.at[ 0 ] === "right" ) {
|
|
basePosition.left += targetWidth;
|
|
} else if ( options.at[ 0 ] === "center" ) {
|
|
basePosition.left += targetWidth / 2;
|
|
}
|
|
|
|
if ( options.at[ 1 ] === "bottom" ) {
|
|
basePosition.top += targetHeight;
|
|
} else if ( options.at[ 1 ] === "center" ) {
|
|
basePosition.top += targetHeight / 2;
|
|
}
|
|
|
|
atOffset = getOffsets( offsets.at, targetWidth, targetHeight );
|
|
basePosition.left += atOffset[ 0 ];
|
|
basePosition.top += atOffset[ 1 ];
|
|
|
|
return this.each( function() {
|
|
var collisionPosition, using,
|
|
elem = $( this ),
|
|
elemWidth = elem.outerWidth(),
|
|
elemHeight = elem.outerHeight(),
|
|
marginLeft = parseCss( this, "marginLeft" ),
|
|
marginTop = parseCss( this, "marginTop" ),
|
|
collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) + scrollInfo.width,
|
|
collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) + scrollInfo.height,
|
|
position = $.extend( {}, basePosition ),
|
|
myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );
|
|
|
|
if ( options.my[ 0 ] === "right" ) {
|
|
position.left -= elemWidth;
|
|
} else if ( options.my[ 0 ] === "center" ) {
|
|
position.left -= elemWidth / 2;
|
|
}
|
|
|
|
if ( options.my[ 1 ] === "bottom" ) {
|
|
position.top -= elemHeight;
|
|
} else if ( options.my[ 1 ] === "center" ) {
|
|
position.top -= elemHeight / 2;
|
|
}
|
|
|
|
position.left += myOffset[ 0 ];
|
|
position.top += myOffset[ 1 ];
|
|
|
|
// If the browser doesn't support fractions, then round for consistent results
|
|
if ( !supportsOffsetFractions() ) {
|
|
position.left = round( position.left );
|
|
position.top = round( position.top );
|
|
}
|
|
|
|
collisionPosition = {
|
|
marginLeft: marginLeft,
|
|
marginTop: marginTop
|
|
};
|
|
|
|
$.each( [ "left", "top" ], function( i, dir ) {
|
|
if ( $.ui.position[ collision[ i ] ] ) {
|
|
$.ui.position[ collision[ i ] ][ dir ]( position, {
|
|
targetWidth: targetWidth,
|
|
targetHeight: targetHeight,
|
|
elemWidth: elemWidth,
|
|
elemHeight: elemHeight,
|
|
collisionPosition: collisionPosition,
|
|
collisionWidth: collisionWidth,
|
|
collisionHeight: collisionHeight,
|
|
offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],
|
|
my: options.my,
|
|
at: options.at,
|
|
within: within,
|
|
elem: elem
|
|
} );
|
|
}
|
|
} );
|
|
|
|
if ( options.using ) {
|
|
|
|
// Adds feedback as second argument to using callback, if present
|
|
using = function( props ) {
|
|
var left = targetOffset.left - position.left,
|
|
right = left + targetWidth - elemWidth,
|
|
top = targetOffset.top - position.top,
|
|
bottom = top + targetHeight - elemHeight,
|
|
feedback = {
|
|
target: {
|
|
element: target,
|
|
left: targetOffset.left,
|
|
top: targetOffset.top,
|
|
width: targetWidth,
|
|
height: targetHeight
|
|
},
|
|
element: {
|
|
element: elem,
|
|
left: position.left,
|
|
top: position.top,
|
|
width: elemWidth,
|
|
height: elemHeight
|
|
},
|
|
horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
|
|
vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
|
|
};
|
|
if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {
|
|
feedback.horizontal = "center";
|
|
}
|
|
if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {
|
|
feedback.vertical = "middle";
|
|
}
|
|
if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {
|
|
feedback.important = "horizontal";
|
|
} else {
|
|
feedback.important = "vertical";
|
|
}
|
|
options.using.call( this, props, feedback );
|
|
};
|
|
}
|
|
|
|
elem.offset( $.extend( position, { using: using } ) );
|
|
} );
|
|
};
|
|
|
|
$.ui.position = {
|
|
fit: {
|
|
left: function( position, data ) {
|
|
var within = data.within,
|
|
withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,
|
|
outerWidth = within.width,
|
|
collisionPosLeft = position.left - data.collisionPosition.marginLeft,
|
|
overLeft = withinOffset - collisionPosLeft,
|
|
overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,
|
|
newOverRight;
|
|
|
|
// Element is wider than within
|
|
if ( data.collisionWidth > outerWidth ) {
|
|
|
|
// Element is initially over the left side of within
|
|
if ( overLeft > 0 && overRight <= 0 ) {
|
|
newOverRight = position.left + overLeft + data.collisionWidth - outerWidth - withinOffset;
|
|
position.left += overLeft - newOverRight;
|
|
|
|
// Element is initially over right side of within
|
|
} else if ( overRight > 0 && overLeft <= 0 ) {
|
|
position.left = withinOffset;
|
|
|
|
// Element is initially over both left and right sides of within
|
|
} else {
|
|
if ( overLeft > overRight ) {
|
|
position.left = withinOffset + outerWidth - data.collisionWidth;
|
|
} else {
|
|
position.left = withinOffset;
|
|
}
|
|
}
|
|
|
|
// Too far left -> align with left edge
|
|
} else if ( overLeft > 0 ) {
|
|
position.left += overLeft;
|
|
|
|
// Too far right -> align with right edge
|
|
} else if ( overRight > 0 ) {
|
|
position.left -= overRight;
|
|
|
|
// Adjust based on position and margin
|
|
} else {
|
|
position.left = max( position.left - collisionPosLeft, position.left );
|
|
}
|
|
},
|
|
top: function( position, data ) {
|
|
var within = data.within,
|
|
withinOffset = within.isWindow ? within.scrollTop : within.offset.top,
|
|
outerHeight = data.within.height,
|
|
collisionPosTop = position.top - data.collisionPosition.marginTop,
|
|
overTop = withinOffset - collisionPosTop,
|
|
overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,
|
|
newOverBottom;
|
|
|
|
// Element is taller than within
|
|
if ( data.collisionHeight > outerHeight ) {
|
|
|
|
// Element is initially over the top of within
|
|
if ( overTop > 0 && overBottom <= 0 ) {
|
|
newOverBottom = position.top + overTop + data.collisionHeight - outerHeight - withinOffset;
|
|
position.top += overTop - newOverBottom;
|
|
|
|
// Element is initially over bottom of within
|
|
} else if ( overBottom > 0 && overTop <= 0 ) {
|
|
position.top = withinOffset;
|
|
|
|
// Element is initially over both top and bottom of within
|
|
} else {
|
|
if ( overTop > overBottom ) {
|
|
position.top = withinOffset + outerHeight - data.collisionHeight;
|
|
} else {
|
|
position.top = withinOffset;
|
|
}
|
|
}
|
|
|
|
// Too far up -> align with top
|
|
} else if ( overTop > 0 ) {
|
|
position.top += overTop;
|
|
|
|
// Too far down -> align with bottom edge
|
|
} else if ( overBottom > 0 ) {
|
|
position.top -= overBottom;
|
|
|
|
// Adjust based on position and margin
|
|
} else {
|
|
position.top = max( position.top - collisionPosTop, position.top );
|
|
}
|
|
}
|
|
},
|
|
flip: {
|
|
left: function( position, data ) {
|
|
var within = data.within,
|
|
withinOffset = within.offset.left + within.scrollLeft,
|
|
outerWidth = within.width,
|
|
offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,
|
|
collisionPosLeft = position.left - data.collisionPosition.marginLeft,
|
|
overLeft = collisionPosLeft - offsetLeft,
|
|
overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,
|
|
myOffset = data.my[ 0 ] === "left" ?
|
|
-data.elemWidth :
|
|
data.my[ 0 ] === "right" ?
|
|
data.elemWidth :
|
|
0,
|
|
atOffset = data.at[ 0 ] === "left" ?
|
|
data.targetWidth :
|
|
data.at[ 0 ] === "right" ?
|
|
-data.targetWidth :
|
|
0,
|
|
offset = -2 * data.offset[ 0 ],
|
|
newOverRight,
|
|
newOverLeft;
|
|
|
|
if ( overLeft < 0 ) {
|
|
newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth - outerWidth - withinOffset;
|
|
if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {
|
|
position.left += myOffset + atOffset + offset;
|
|
}
|
|
} else if ( overRight > 0 ) {
|
|
newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset + atOffset + offset - offsetLeft;
|
|
if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {
|
|
position.left += myOffset + atOffset + offset;
|
|
}
|
|
}
|
|
},
|
|
top: function( position, data ) {
|
|
var within = data.within,
|
|
withinOffset = within.offset.top + within.scrollTop,
|
|
outerHeight = within.height,
|
|
offsetTop = within.isWindow ? within.scrollTop : within.offset.top,
|
|
collisionPosTop = position.top - data.collisionPosition.marginTop,
|
|
overTop = collisionPosTop - offsetTop,
|
|
overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,
|
|
top = data.my[ 1 ] === "top",
|
|
myOffset = top ?
|
|
-data.elemHeight :
|
|
data.my[ 1 ] === "bottom" ?
|
|
data.elemHeight :
|
|
0,
|
|
atOffset = data.at[ 1 ] === "top" ?
|
|
data.targetHeight :
|
|
data.at[ 1 ] === "bottom" ?
|
|
-data.targetHeight :
|
|
0,
|
|
offset = -2 * data.offset[ 1 ],
|
|
newOverTop,
|
|
newOverBottom;
|
|
if ( overTop < 0 ) {
|
|
newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight - outerHeight - withinOffset;
|
|
if ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) {
|
|
position.top += myOffset + atOffset + offset;
|
|
}
|
|
} else if ( overBottom > 0 ) {
|
|
newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset + offset - offsetTop;
|
|
if ( newOverTop > 0 || abs( newOverTop ) < overBottom ) {
|
|
position.top += myOffset + atOffset + offset;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
flipfit: {
|
|
left: function() {
|
|
$.ui.position.flip.left.apply( this, arguments );
|
|
$.ui.position.fit.left.apply( this, arguments );
|
|
},
|
|
top: function() {
|
|
$.ui.position.flip.top.apply( this, arguments );
|
|
$.ui.position.fit.top.apply( this, arguments );
|
|
}
|
|
}
|
|
};
|
|
|
|
} )();
|
|
|
|
return $.ui.position;
|
|
|
|
} ) );
|