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share/files/public/skins/default/jquery-ui-1.9.1.custom/development-bundle/ui/jquery.ui.slider.js  view on Meta::CPAN

		this._mouseSliding = true;

		this._handleIndex = index;

		closestHandle
			.addClass( "ui-state-active" )
			.focus();

		offset = closestHandle.offset();
		mouseOverHandle = !$( event.target ).parents().andSelf().is( ".ui-slider-handle" );
		this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : {
			left: event.pageX - offset.left - ( closestHandle.width() / 2 ),
			top: event.pageY - offset.top -
				( closestHandle.height() / 2 ) -
				( parseInt( closestHandle.css("borderTopWidth"), 10 ) || 0 ) -
				( parseInt( closestHandle.css("borderBottomWidth"), 10 ) || 0) +
				( parseInt( closestHandle.css("marginTop"), 10 ) || 0)
		};

		if ( !this.handles.hasClass( "ui-state-hover" ) ) {
			this._slide( event, index, normValue );
		}
		this._animateOff = true;
		return true;
	},

	_mouseStart: function() {
		return true;
	},

	_mouseDrag: function( event ) {
		var position = { x: event.pageX, y: event.pageY },
			normValue = this._normValueFromMouse( position );

		this._slide( event, this._handleIndex, normValue );

		return false;
	},

	_mouseStop: function( event ) {
		this.handles.removeClass( "ui-state-active" );
		this._mouseSliding = false;

		this._stop( event, this._handleIndex );
		this._change( event, this._handleIndex );

		this._handleIndex = null;
		this._clickOffset = null;
		this._animateOff = false;

		return false;
	},

	_detectOrientation: function() {
		this.orientation = ( this.options.orientation === "vertical" ) ? "vertical" : "horizontal";
	},

	_normValueFromMouse: function( position ) {
		var pixelTotal,
			pixelMouse,
			percentMouse,
			valueTotal,
			valueMouse;

		if ( this.orientation === "horizontal" ) {
			pixelTotal = this.elementSize.width;
			pixelMouse = position.x - this.elementOffset.left - ( this._clickOffset ? this._clickOffset.left : 0 );
		} else {
			pixelTotal = this.elementSize.height;
			pixelMouse = position.y - this.elementOffset.top - ( this._clickOffset ? this._clickOffset.top : 0 );
		}

		percentMouse = ( pixelMouse / pixelTotal );
		if ( percentMouse > 1 ) {
			percentMouse = 1;
		}
		if ( percentMouse < 0 ) {
			percentMouse = 0;
		}
		if ( this.orientation === "vertical" ) {
			percentMouse = 1 - percentMouse;
		}

		valueTotal = this._valueMax() - this._valueMin();
		valueMouse = this._valueMin() + percentMouse * valueTotal;

		return this._trimAlignValue( valueMouse );
	},

	_start: function( event, index ) {
		var uiHash = {
			handle: this.handles[ index ],
			value: this.value()
		};
		if ( this.options.values && this.options.values.length ) {
			uiHash.value = this.values( index );
			uiHash.values = this.values();
		}
		return this._trigger( "start", event, uiHash );
	},

	_slide: function( event, index, newVal ) {
		var otherVal,
			newValues,
			allowed;

		if ( this.options.values && this.options.values.length ) {
			otherVal = this.values( index ? 0 : 1 );

			if ( ( this.options.values.length === 2 && this.options.range === true ) &&
					( ( index === 0 && newVal > otherVal) || ( index === 1 && newVal < otherVal ) )
				) {
				newVal = otherVal;
			}

			if ( newVal !== this.values( index ) ) {
				newValues = this.values();
				newValues[ index ] = newVal;
				// A slide can be canceled by returning false from the slide callback
				allowed = this._trigger( "slide", event, {
					handle: this.handles[ index ],
					value: newVal,
					values: newValues
				} );
				otherVal = this.values( index ? 0 : 1 );
				if ( allowed !== false ) {
					this.values( index, newVal, true );
				}
			}
		} else {
			if ( newVal !== this.value() ) {
				// A slide can be canceled by returning false from the slide callback
				allowed = this._trigger( "slide", event, {
					handle: this.handles[ index ],
					value: newVal
				} );
				if ( allowed !== false ) {
					this.value( newVal );
				}
			}
		}
	},

	_stop: function( event, index ) {
		var uiHash = {