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Draggable: Uncommented failing scrolling tests and fixed them

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This commit is contained in:
Dave Stein 2013-01-07 14:44:00 -05:00
parent 1495a61298
commit d84cf1d716
2 changed files with 41 additions and 15 deletions
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4
tests/unit/draggable/draggable_test_helpers.js
View File

@ -38,9 +38,7 @@ TestHelpers.draggable = {
},
setScroll: function( what ) {
if(what) {
// todo: currently, the draggable interaction doesn't properly account for scrolled pages,
// uncomment the line below to make the tests fail that should when the page is scrolled
// $(document).scrollTop(100); $(document).scrollLeft(100);
$(document).scrollTop(100); $(document).scrollLeft(100);
} else {
$("#main").scrollTop(100); $("#main").scrollLeft(100);
}

52
ui/jquery.ui.draggable.js vendored
View File

@ -305,7 +305,9 @@ $.widget( "ui.draggable", $.ui.interaction, {
},
_handleScrolling: function( pointerPosition ) {
var scrollTop = this.scrollParent.scrollTop(),
var newScrollTop, newScrollLeft,
scrollTop = this.scrollParent.scrollTop(),
scrollLeft = this.scrollParent.scrollLeft(),
scrollSensitivity = this.scrollSensitivity,
// overflowOffset is only set when scrollParent is not doc/html
@ -318,24 +320,49 @@ $.widget( "ui.draggable", $.ui.interaction, {
xRight = this.overflow.width + overflowLeft - pointerPosition.x,
xLeft = pointerPosition.x- overflowLeft,
yBottom = this.overflow.height + overflowTop - pointerPosition.y,
yTop = pointerPosition.y - overflowTop;
yTop = pointerPosition.y - overflowTop,
// accounts for change in scrollbar to modify "original" pointer so calc
change;
// Handle vertical scrolling
if ( yBottom < scrollSensitivity ) {
this.scrollParent.scrollTop( scrollTop +
this._speed( scrollSensitivity - yBottom ) );
change = this._speed( scrollSensitivity - yBottom );
this.scrollParent.scrollTop( scrollTop + change );
this.originalPointer.y = this.originalPointer.y + change;
} else if ( yTop < scrollSensitivity ) {
this.scrollParent.scrollTop( scrollTop -
this._speed( scrollSensitivity - yTop ) );
change = this._speed( scrollSensitivity - yTop );
newScrollTop = scrollTop - change;
// Don't do anything unless new value is "real"
if ( newScrollTop >= 0 ) {
this.scrollParent.scrollTop( newScrollTop );
this._speed( scrollSensitivity - yTop )
this.originalPointer.y = this.originalPointer.y - change;
}
}
// Handle horizontal scrolling
if ( xRight < scrollSensitivity ) {
this.scrollParent.scrollLeft( scrollLeft +
this._speed( scrollSensitivity - xRight ) );
change = this._speed( scrollSensitivity - xRight );
this.scrollParent.scrollLeft( scrollLeft + change);
this.originalPointer.x = this.originalPointer.x + change;
} else if ( xLeft < scrollSensitivity ) {
this.scrollParent.scrollLeft( scrollLeft -
this._speed( scrollSensitivity - xLeft ) );
change = this._speed( scrollSensitivity - xLeft );
newScrollLeft = scrollLeft - change;
// Don't do anything unless new value is "real"
if ( newScrollLeft >= 0 ) {
this.scrollParent.scrollLeft( newScrollLeft );
this.originalPointer.x = this.originalPointer.x - change;
}
}
},
@ -370,6 +397,7 @@ $.widget( "ui.draggable", $.ui.interaction, {
// Places draggable where event, or user via event/callback, indicates
_setCss: function() {
var newLeft = this.position.left,
newTop = this.position.top;
@ -382,11 +410,11 @@ $.widget( "ui.draggable", $.ui.interaction, {
}
// TODO: does this work with nested scrollable parents?
if ( this.cssPosition !== "fixed" ) {
if ( this.cssPosition !== "fixed") {
newLeft += this.scrollParent.scrollLeft();
newTop += this.scrollParent.scrollTop();
}
this.dragEl.css({
left: newLeft,
top: newTop