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Bug 7931; Fixed bug that caused scrollTop and scrollLeft setters to return null when called on an empty jquery object

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This commit is contained in:
Xavi 2011-01-09 19:11:05 -05:00
parent fcf623786a
commit d03d2e9f26
2 changed files with 21 additions and 15 deletions
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28
src/offset.js
View File

@ -261,13 +261,9 @@ jQuery.each( ["Left", "Top"], function( i, name ) {
var method = "scroll" + name; var method = "scroll" + name;
jQuery.fn[ method ] = function(val) { jQuery.fn[ method ] = function(val) {
var elem = this[0], win; var elem, win;
if ( !elem ) { if ( val != undefined ) {
return null;
}
if ( val !== undefined ) {
// Set the scroll offset // Set the scroll offset
return this.each(function() { return this.each(function() {
win = getWindow( this ); win = getWindow( this );
@ -282,15 +278,19 @@ jQuery.each( ["Left", "Top"], function( i, name ) {
this[ method ] = val; this[ method ] = val;
} }
}); });
} else {
win = getWindow( elem );
// Return the scroll offset
return win ? ("pageXOffset" in win) ? win[ i ? "pageYOffset" : "pageXOffset" ] :
jQuery.support.boxModel && win.document.documentElement[ method ] ||
win.document.body[ method ] :
elem[ method ];
} }
elem = this[0];
if( !elem ) {
return null
}
win = getWindow( elem );
// Return the scroll offset
return win ? ("pageXOffset" in win) ? win[ i ? "pageYOffset" : "pageXOffset" ] :
jQuery.support.boxModel && win.document.documentElement[ method ] ||
win.document.body[ method ] :
elem[ method ];
}; };
}); });

8
test/unit/offset.js
View File

@ -333,7 +333,7 @@ testoffset("table", function( jQuery ) {
}); });
testoffset("scroll", function( jQuery, win ) { testoffset("scroll", function( jQuery, win ) {
expect(16); expect(20);
var ie = jQuery.browser.msie && parseInt( jQuery.browser.version, 10 ) < 8; var ie = jQuery.browser.msie && parseInt( jQuery.browser.version, 10 ) < 8;
@ -379,6 +379,12 @@ testoffset("scroll", function( jQuery, win ) {
equals( jQuery(window).scrollLeft(), 0, "jQuery(window).scrollLeft() other window" ); equals( jQuery(window).scrollLeft(), 0, "jQuery(window).scrollLeft() other window" );
equals( jQuery(document).scrollTop(), 0, "jQuery(window).scrollTop() other document" ); equals( jQuery(document).scrollTop(), 0, "jQuery(window).scrollTop() other document" );
equals( jQuery(document).scrollLeft(), 0, "jQuery(window).scrollLeft() other document" ); equals( jQuery(document).scrollLeft(), 0, "jQuery(window).scrollLeft() other document" );
// Tests scrollTop/Left with empty jquery objects
ok( jQuery().scrollTop(100) != null, "jQuery().scrollTop(100) testing setter on empty jquery object" );
ok( jQuery().scrollLeft(100) != null, "jQuery().scrollLeft(100) testing setter on empty jquery object" );
ok( jQuery().scrollTop() === null, "jQuery().scrollTop(100) testing setter on empty jquery object" );
ok( jQuery().scrollLeft() === null, "jQuery().scrollLeft(100) testing setter on empty jquery object" );
}); });
testoffset("body", function( jQuery ) { testoffset("body", function( jQuery ) {