mirror of
https://github.com/jquery/jquery.git
synced 2024-12-09 08:04:24 +00:00
505 lines
15 KiB
JavaScript
505 lines
15 KiB
JavaScript
// Require more than a few needed variables
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// Keep in mind that a dependency array cannot be used with CommonJS+AMD syntax
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define(function( require ) {
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var
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jQuery = require( "./core" ),
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pnum = require( "./var/pnum" ),
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access = require( "./core/access" ),
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rmargin = require( "./css/var/rmargin" ),
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rnumnonpx = require( "./css/var/rnumnonpx" ),
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cssExpand = require( "./css/var/cssExpand" ),
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isHidden = require( "./css/var/isHidden" ),
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// This format is here to facilitate easy removal when building
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getStyles = require( "./css/curCSS" ).getStyles,
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curCSS = require( "./css/curCSS" ).curCSS,
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support = require( "./css/support" ),
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defaultDisplay = require( "./css/defaultDisplay" ),
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addGetHookIf = require( "./css/addGetHookIf" ),
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ralpha = /alpha\([^)]*\)/i,
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ropacity = /opacity\s*=\s*([^)]*)/,
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// swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
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// see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
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rdisplayswap = /^(none|table(?!-c[ea]).+)/,
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rnumsplit = new RegExp( "^(" + pnum + ")(.*)$", "i" ),
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rrelNum = new RegExp( "^([+-])=(" + pnum + ")", "i" ),
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cssShow = { position: "absolute", visibility: "hidden", display: "block" },
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cssNormalTransform = {
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letterSpacing: 0,
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fontWeight: 400
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},
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cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
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// Dependencies not needed as vars
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require( "./core/init" );
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require( "./css/swap" );
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require( "./core/ready" );
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require( "./selector" ); // contains
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// return a css property mapped to a potentially vendor prefixed property
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function vendorPropName( style, name ) {
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// shortcut for names that are not vendor prefixed
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if ( name in style ) {
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return name;
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}
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// check for vendor prefixed names
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var capName = name.charAt(0).toUpperCase() + name.slice(1),
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origName = name,
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i = cssPrefixes.length;
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while ( i-- ) {
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name = cssPrefixes[ i ] + capName;
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if ( name in style ) {
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return name;
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}
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}
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return origName;
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}
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function showHide( elements, show ) {
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var display, elem, hidden,
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values = [],
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index = 0,
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length = elements.length;
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for ( ; index < length; index++ ) {
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elem = elements[ index ];
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if ( !elem.style ) {
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continue;
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}
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values[ index ] = jQuery._data( elem, "olddisplay" );
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display = elem.style.display;
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if ( show ) {
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// Reset the inline display of this element to learn if it is
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// being hidden by cascaded rules or not
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if ( !values[ index ] && display === "none" ) {
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elem.style.display = "";
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}
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// Set elements which have been overridden with display: none
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// in a stylesheet to whatever the default browser style is
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// for such an element
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if ( elem.style.display === "" && isHidden( elem ) ) {
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values[ index ] = jQuery._data( elem, "olddisplay", defaultDisplay(elem.nodeName) );
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}
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} else {
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if ( !values[ index ] ) {
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hidden = isHidden( elem );
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if ( display && display !== "none" || !hidden ) {
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jQuery._data( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
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}
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}
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}
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}
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// Set the display of most of the elements in a second loop
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// to avoid the constant reflow
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for ( index = 0; index < length; index++ ) {
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elem = elements[ index ];
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if ( !elem.style ) {
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continue;
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}
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if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
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elem.style.display = show ? values[ index ] || "" : "none";
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}
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}
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return elements;
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}
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function setPositiveNumber( elem, value, subtract ) {
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var matches = rnumsplit.exec( value );
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return matches ?
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// Guard against undefined "subtract", e.g., when used as in cssHooks
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Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
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value;
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}
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function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
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var i = extra === ( isBorderBox ? "border" : "content" ) ?
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// If we already have the right measurement, avoid augmentation
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4 :
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// Otherwise initialize for horizontal or vertical properties
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name === "width" ? 1 : 0,
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val = 0;
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for ( ; i < 4; i += 2 ) {
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// both box models exclude margin, so add it if we want it
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if ( extra === "margin" ) {
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val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
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}
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if ( isBorderBox ) {
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// border-box includes padding, so remove it if we want content
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if ( extra === "content" ) {
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val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
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}
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// at this point, extra isn't border nor margin, so remove border
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if ( extra !== "margin" ) {
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val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
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}
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} else {
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// at this point, extra isn't content, so add padding
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val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
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// at this point, extra isn't content nor padding, so add border
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if ( extra !== "padding" ) {
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val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
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}
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}
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}
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return val;
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}
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function getWidthOrHeight( elem, name, extra ) {
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// Start with offset property, which is equivalent to the border-box value
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var valueIsBorderBox = true,
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val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
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styles = getStyles( elem ),
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isBorderBox = support.boxSizing() && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
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// some non-html elements return undefined for offsetWidth, so check for null/undefined
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// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
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// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
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if ( val <= 0 || val == null ) {
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// Fall back to computed then uncomputed css if necessary
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val = curCSS( elem, name, styles );
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if ( val < 0 || val == null ) {
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val = elem.style[ name ];
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}
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// Computed unit is not pixels. Stop here and return.
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if ( rnumnonpx.test(val) ) {
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return val;
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}
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// we need the check for style in case a browser which returns unreliable values
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// for getComputedStyle silently falls back to the reliable elem.style
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valueIsBorderBox = isBorderBox && ( support.boxSizingReliable() || val === elem.style[ name ] );
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// Normalize "", auto, and prepare for extra
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val = parseFloat( val ) || 0;
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}
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// use the active box-sizing model to add/subtract irrelevant styles
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return ( val +
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augmentWidthOrHeight(
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elem,
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name,
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extra || ( isBorderBox ? "border" : "content" ),
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valueIsBorderBox,
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styles
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)
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) + "px";
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}
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jQuery.extend({
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// Add in style property hooks for overriding the default
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// behavior of getting and setting a style property
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cssHooks: {
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opacity: {
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get: function( elem, computed ) {
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if ( computed ) {
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// We should always get a number back from opacity
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var ret = curCSS( elem, "opacity" );
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return ret === "" ? "1" : ret;
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}
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}
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}
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},
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// Don't automatically add "px" to these possibly-unitless properties
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cssNumber: {
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"columnCount": true,
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"fillOpacity": true,
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"fontWeight": true,
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"lineHeight": true,
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"opacity": true,
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"order": true,
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"orphans": true,
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"widows": true,
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"zIndex": true,
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"zoom": true
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},
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// Add in properties whose names you wish to fix before
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// setting or getting the value
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cssProps: {
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// normalize float css property
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"float": support.cssFloat ? "cssFloat" : "styleFloat"
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},
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// Get and set the style property on a DOM Node
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style: function( elem, name, value, extra ) {
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// Don't set styles on text and comment nodes
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if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
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return;
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}
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// Make sure that we're working with the right name
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var ret, type, hooks,
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origName = jQuery.camelCase( name ),
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style = elem.style;
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name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
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// gets hook for the prefixed version
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// followed by the unprefixed version
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hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
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// Check if we're setting a value
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if ( value !== undefined ) {
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type = typeof value;
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// convert relative number strings (+= or -=) to relative numbers. #7345
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if ( type === "string" && (ret = rrelNum.exec( value )) ) {
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value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
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// Fixes bug #9237
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type = "number";
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}
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// Make sure that null and NaN values aren't set. See: #7116
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if ( value == null || value !== value ) {
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return;
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}
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// If a number was passed in, add 'px' to the (except for certain CSS properties)
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if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
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value += "px";
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}
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// Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
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// but it would mean to define eight (for every problematic property) identical functions
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if ( !support.clearCloneStyle && value === "" && name.indexOf("background") === 0 ) {
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style[ name ] = "inherit";
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}
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// If a hook was provided, use that value, otherwise just set the specified value
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if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
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// Wrapped to prevent IE from throwing errors when 'invalid' values are provided
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// Fixes bug #5509
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try {
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style[ name ] = value;
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} catch(e) {}
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}
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} else {
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// If a hook was provided get the non-computed value from there
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if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
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return ret;
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}
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// Otherwise just get the value from the style object
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return style[ name ];
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}
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},
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css: function( elem, name, extra, styles ) {
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var num, val, hooks,
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origName = jQuery.camelCase( name );
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// Make sure that we're working with the right name
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name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
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// gets hook for the prefixed version
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// followed by the unprefixed version
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hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
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// If a hook was provided get the computed value from there
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if ( hooks && "get" in hooks ) {
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val = hooks.get( elem, true, extra );
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}
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// Otherwise, if a way to get the computed value exists, use that
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if ( val === undefined ) {
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val = curCSS( elem, name, styles );
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}
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//convert "normal" to computed value
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if ( val === "normal" && name in cssNormalTransform ) {
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val = cssNormalTransform[ name ];
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}
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// Return, converting to number if forced or a qualifier was provided and val looks numeric
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if ( extra === "" || extra ) {
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num = parseFloat( val );
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return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
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}
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return val;
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}
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});
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jQuery.each([ "height", "width" ], function( i, name ) {
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jQuery.cssHooks[ name ] = {
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get: function( elem, computed, extra ) {
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if ( computed ) {
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// certain elements can have dimension info if we invisibly show them
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// however, it must have a current display style that would benefit from this
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return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
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jQuery.swap( elem, cssShow, function() {
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return getWidthOrHeight( elem, name, extra );
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}) :
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getWidthOrHeight( elem, name, extra );
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}
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},
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set: function( elem, value, extra ) {
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var styles = extra && getStyles( elem );
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return setPositiveNumber( elem, value, extra ?
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augmentWidthOrHeight(
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elem,
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name,
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extra,
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support.boxSizing() && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
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styles
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) : 0
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);
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}
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};
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});
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if ( !support.opacity ) {
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jQuery.cssHooks.opacity = {
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get: function( elem, computed ) {
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// IE uses filters for opacity
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return ropacity.test( (computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "" ) ?
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( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
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computed ? "1" : "";
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},
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set: function( elem, value ) {
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var style = elem.style,
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currentStyle = elem.currentStyle,
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opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
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filter = currentStyle && currentStyle.filter || style.filter || "";
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// IE has trouble with opacity if it does not have layout
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// Force it by setting the zoom level
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style.zoom = 1;
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// if setting opacity to 1, and no other filters exist - attempt to remove filter attribute #6652
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// if value === "", then remove inline opacity #12685
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if ( ( value >= 1 || value === "" ) &&
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jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
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style.removeAttribute ) {
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// Setting style.filter to null, "" & " " still leave "filter:" in the cssText
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// if "filter:" is present at all, clearType is disabled, we want to avoid this
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// style.removeAttribute is IE Only, but so apparently is this code path...
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style.removeAttribute( "filter" );
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// if there is no filter style applied in a css rule or unset inline opacity, we are done
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if ( value === "" || currentStyle && !currentStyle.filter ) {
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return;
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}
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}
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// otherwise, set new filter values
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style.filter = ralpha.test( filter ) ?
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filter.replace( ralpha, opacity ) :
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filter + " " + opacity;
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}
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};
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}
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jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
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function ( elem, computed ) {
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if ( computed ) {
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// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
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// Work around by temporarily setting element display to inline-block
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return jQuery.swap( elem, { "display": "inline-block" },
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curCSS, [ elem, "marginRight" ] );
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}
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}
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);
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// These hooks are used by animate to expand properties
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jQuery.each({
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margin: "",
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padding: "",
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border: "Width"
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}, function( prefix, suffix ) {
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jQuery.cssHooks[ prefix + suffix ] = {
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expand: function( value ) {
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var i = 0,
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expanded = {},
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// assumes a single number if not a string
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parts = typeof value === "string" ? value.split(" ") : [ value ];
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for ( ; i < 4; i++ ) {
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expanded[ prefix + cssExpand[ i ] + suffix ] =
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parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
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}
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return expanded;
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}
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};
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if ( !rmargin.test( prefix ) ) {
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jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
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}
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});
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jQuery.fn.extend({
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css: function( name, value ) {
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return access( this, function( elem, name, value ) {
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var styles, len,
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map = {},
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i = 0;
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if ( jQuery.isArray( name ) ) {
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styles = getStyles( elem );
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len = name.length;
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for ( ; i < len; i++ ) {
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map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
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}
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return map;
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}
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return value !== undefined ?
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jQuery.style( elem, name, value ) :
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jQuery.css( elem, name );
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}, name, value, arguments.length > 1 );
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},
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show: function() {
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return showHide( this, true );
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},
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hide: function() {
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return showHide( this );
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},
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toggle: function( state ) {
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if ( typeof state === "boolean" ) {
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return state ? this.show() : this.hide();
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}
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return this.each(function() {
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if ( isHidden( this ) ) {
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jQuery( this ).show();
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} else {
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jQuery( this ).hide();
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}
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});
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}
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});
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return jQuery;
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});
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