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Draggable: Added opacity backCompat along with some more comments in other areas

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This commit is contained in:
Dave Stein 2012-12-11 19:16:20 -05:00
parent 855416ef9b
commit 421f6afdc4
1 changed files with 46 additions and 2 deletions
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48
ui/jquery.ui.draggable.js vendored
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@ -578,7 +578,7 @@ if ( $.uiBackCompat !== false ) {
this._super(); this._super();
// No need to continue
if ( !this.options.cursorAt ) { if ( !this.options.cursorAt ) {
return; return;
} }
@ -619,15 +619,18 @@ if ( $.uiBackCompat !== false ) {
this._super(); this._super();
// No need to continue
if ( !this.options.grid ) { if ( !this.options.grid ) {
return; return;
} }
// Save off the intended intervals
x = this.options.grid[0]; x = this.options.grid[0];
y = this.options.grid[1]; y = this.options.grid[1];
this.element.on( "dragbeforestart", function( e, ui ) { this.element.on( "dragbeforestart", function( e, ui ) {
// Save off the start position
currentX = ui.position.left; currentX = ui.position.left;
currentY = ui.position.top; currentY = ui.position.top;
@ -635,6 +638,7 @@ if ( $.uiBackCompat !== false ) {
this.element.on( "drag", function( e, ui ) { this.element.on( "drag", function( e, ui ) {
// If x is actually something, check that user is at least half way to next point
if ( x ) { if ( x ) {
if ( ui.position.left - currentX > x/2 ) { if ( ui.position.left - currentX > x/2 ) {
currentX = currentX + x; currentX = currentX + x;
@ -644,6 +648,7 @@ if ( $.uiBackCompat !== false ) {
} }
} }
// If y is actually something, check that user is at least half way to next point
if ( y ) { if ( y ) {
if ( ui.position.top - currentY > y/2 ) { if ( ui.position.top - currentY > y/2 ) {
currentY = currentY + y; currentY = currentY + y;
@ -653,10 +658,49 @@ if ( $.uiBackCompat !== false ) {
} }
} }
// If there threshold wasn't crossed these variables wouldn't be changed
// Otherwise this will now bump the draggable to the next spot on grid
ui.position.left = currentX; ui.position.left = currentX;
ui.position.top = currentY; ui.position.top = currentY;
});
}
});
// opacity option
$.widget( "ui.draggable", $.ui.draggable, {
options: {
opacity: false
},
_create : function() {
var self = this,
originalOpacity;
this._super();
// No need to continue
if ( !this.options.opacity ) {
return;
}
this.element.on( "dragbeforestart", function( e, ui ) {
// Cache the original opacity of draggable element to reset later
originalOpacity = self.dragEl.css( 'opacity' );
// Set draggable element to new opacity
self.dragEl.css( 'opacity', self.options.opacity );
});
this.element.on( "dragstop", function( e, ui ) {
// Reset opacity
self.dragEl.css( 'opacity', originalOpacity );
}); });