wp/wp-includes/js/jquery/ui/slider.js
changeset 18 be944660c56a
child 19 3d72ae0968f4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/js/jquery/ui/slider.js	Wed Sep 21 18:19:35 2022 +0200
@@ -0,0 +1,750 @@
+/*!
+ * jQuery UI Slider 1.12.1
+ * http://jqueryui.com
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license.
+ * http://jquery.org/license
+ */
+
+//>>label: Slider
+//>>group: Widgets
+//>>description: Displays a flexible slider with ranges and accessibility via keyboard.
+//>>docs: http://api.jqueryui.com/slider/
+//>>demos: http://jqueryui.com/slider/
+//>>css.structure: ../../themes/base/core.css
+//>>css.structure: ../../themes/base/slider.css
+//>>css.theme: ../../themes/base/theme.css
+
+( function( factory ) {
+	if ( typeof define === "function" && define.amd ) {
+
+		// AMD. Register as an anonymous module.
+		define( [
+			"jquery",
+			"./mouse",
+			"./core"
+		], factory );
+	} else {
+
+		// Browser globals
+		factory( jQuery );
+	}
+}( function( $ ) {
+
+return $.widget( "ui.slider", $.ui.mouse, {
+	version: "1.12.1",
+	widgetEventPrefix: "slide",
+
+	options: {
+		animate: false,
+		classes: {
+			"ui-slider": "ui-corner-all",
+			"ui-slider-handle": "ui-corner-all",
+
+			// Note: ui-widget-header isn't the most fittingly semantic framework class for this
+			// element, but worked best visually with a variety of themes
+			"ui-slider-range": "ui-corner-all ui-widget-header"
+		},
+		distance: 0,
+		max: 100,
+		min: 0,
+		orientation: "horizontal",
+		range: false,
+		step: 1,
+		value: 0,
+		values: null,
+
+		// Callbacks
+		change: null,
+		slide: null,
+		start: null,
+		stop: null
+	},
+
+	// Number of pages in a slider
+	// (how many times can you page up/down to go through the whole range)
+	numPages: 5,
+
+	_create: function() {
+		this._keySliding = false;
+		this._mouseSliding = false;
+		this._animateOff = true;
+		this._handleIndex = null;
+		this._detectOrientation();
+		this._mouseInit();
+		this._calculateNewMax();
+
+		this._addClass( "ui-slider ui-slider-" + this.orientation,
+			"ui-widget ui-widget-content" );
+
+		this._refresh();
+
+		this._animateOff = false;
+	},
+
+	_refresh: function() {
+		this._createRange();
+		this._createHandles();
+		this._setupEvents();
+		this._refreshValue();
+	},
+
+	_createHandles: function() {
+		var i, handleCount,
+			options = this.options,
+			existingHandles = this.element.find( ".ui-slider-handle" ),
+			handle = "<span tabindex='0'></span>",
+			handles = [];
+
+		handleCount = ( options.values && options.values.length ) || 1;
+
+		if ( existingHandles.length > handleCount ) {
+			existingHandles.slice( handleCount ).remove();
+			existingHandles = existingHandles.slice( 0, handleCount );
+		}
+
+		for ( i = existingHandles.length; i < handleCount; i++ ) {
+			handles.push( handle );
+		}
+
+		this.handles = existingHandles.add( $( handles.join( "" ) ).appendTo( this.element ) );
+
+		this._addClass( this.handles, "ui-slider-handle", "ui-state-default" );
+
+		this.handle = this.handles.eq( 0 );
+
+		this.handles.each( function( i ) {
+			$( this )
+				.data( "ui-slider-handle-index", i )
+				.attr( "tabIndex", 0 );
+		} );
+	},
+
+	_createRange: function() {
+		var options = this.options;
+
+		if ( options.range ) {
+			if ( options.range === true ) {
+				if ( !options.values ) {
+					options.values = [ this._valueMin(), this._valueMin() ];
+				} else if ( options.values.length && options.values.length !== 2 ) {
+					options.values = [ options.values[ 0 ], options.values[ 0 ] ];
+				} else if ( $.isArray( options.values ) ) {
+					options.values = options.values.slice( 0 );
+				}
+			}
+
+			if ( !this.range || !this.range.length ) {
+				this.range = $( "<div>" )
+					.appendTo( this.element );
+
+				this._addClass( this.range, "ui-slider-range" );
+			} else {
+				this._removeClass( this.range, "ui-slider-range-min ui-slider-range-max" );
+
+				// Handle range switching from true to min/max
+				this.range.css( {
+					"left": "",
+					"bottom": ""
+				} );
+			}
+			if ( options.range === "min" || options.range === "max" ) {
+				this._addClass( this.range, "ui-slider-range-" + options.range );
+			}
+		} else {
+			if ( this.range ) {
+				this.range.remove();
+			}
+			this.range = null;
+		}
+	},
+
+	_setupEvents: function() {
+		this._off( this.handles );
+		this._on( this.handles, this._handleEvents );
+		this._hoverable( this.handles );
+		this._focusable( this.handles );
+	},
+
+	_destroy: function() {
+		this.handles.remove();
+		if ( this.range ) {
+			this.range.remove();
+		}
+
+		this._mouseDestroy();
+	},
+
+	_mouseCapture: function( event ) {
+		var position, normValue, distance, closestHandle, index, allowed, offset, mouseOverHandle,
+			that = this,
+			o = this.options;
+
+		if ( o.disabled ) {
+			return false;
+		}
+
+		this.elementSize = {
+			width: this.element.outerWidth(),
+			height: this.element.outerHeight()
+		};
+		this.elementOffset = this.element.offset();
+
+		position = { x: event.pageX, y: event.pageY };
+		normValue = this._normValueFromMouse( position );
+		distance = this._valueMax() - this._valueMin() + 1;
+		this.handles.each( function( i ) {
+			var thisDistance = Math.abs( normValue - that.values( i ) );
+			if ( ( distance > thisDistance ) ||
+				( distance === thisDistance &&
+					( i === that._lastChangedValue || that.values( i ) === o.min ) ) ) {
+				distance = thisDistance;
+				closestHandle = $( this );
+				index = i;
+			}
+		} );
+
+		allowed = this._start( event, index );
+		if ( allowed === false ) {
+			return false;
+		}
+		this._mouseSliding = true;
+
+		this._handleIndex = index;
+
+		this._addClass( closestHandle, null, "ui-state-active" );
+		closestHandle.trigger( "focus" );
+
+		offset = closestHandle.offset();
+		mouseOverHandle = !$( event.target ).parents().addBack().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._removeClass( this.handles, null, "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 );
+	},
+
+	_uiHash: function( index, value, values ) {
+		var uiHash = {
+			handle: this.handles[ index ],
+			handleIndex: index,
+			value: value !== undefined ? value : this.value()
+		};
+
+		if ( this._hasMultipleValues() ) {
+			uiHash.value = value !== undefined ? value : this.values( index );
+			uiHash.values = values || this.values();
+		}
+
+		return uiHash;
+	},
+
+	_hasMultipleValues: function() {
+		return this.options.values && this.options.values.length;
+	},
+
+	_start: function( event, index ) {
+		return this._trigger( "start", event, this._uiHash( index ) );
+	},
+
+	_slide: function( event, index, newVal ) {
+		var allowed, otherVal,
+			currentValue = this.value(),
+			newValues = this.values();
+
+		if ( this._hasMultipleValues() ) {
+			otherVal = this.values( index ? 0 : 1 );
+			currentValue = this.values( index );
+
+			if ( this.options.values.length === 2 && this.options.range === true ) {
+				newVal =  index === 0 ? Math.min( otherVal, newVal ) : Math.max( otherVal, newVal );
+			}
+
+			newValues[ index ] = newVal;
+		}
+
+		if ( newVal === currentValue ) {
+			return;
+		}
+
+		allowed = this._trigger( "slide", event, this._uiHash( index, newVal, newValues ) );
+
+		// A slide can be canceled by returning false from the slide callback
+		if ( allowed === false ) {
+			return;
+		}
+
+		if ( this._hasMultipleValues() ) {
+			this.values( index, newVal );
+		} else {
+			this.value( newVal );
+		}
+	},
+
+	_stop: function( event, index ) {
+		this._trigger( "stop", event, this._uiHash( index ) );
+	},
+
+	_change: function( event, index ) {
+		if ( !this._keySliding && !this._mouseSliding ) {
+
+			//store the last changed value index for reference when handles overlap
+			this._lastChangedValue = index;
+			this._trigger( "change", event, this._uiHash( index ) );
+		}
+	},
+
+	value: function( newValue ) {
+		if ( arguments.length ) {
+			this.options.value = this._trimAlignValue( newValue );
+			this._refreshValue();
+			this._change( null, 0 );
+			return;
+		}
+
+		return this._value();
+	},
+
+	values: function( index, newValue ) {
+		var vals,
+			newValues,
+			i;
+
+		if ( arguments.length > 1 ) {
+			this.options.values[ index ] = this._trimAlignValue( newValue );
+			this._refreshValue();
+			this._change( null, index );
+			return;
+		}
+
+		if ( arguments.length ) {
+			if ( $.isArray( arguments[ 0 ] ) ) {
+				vals = this.options.values;
+				newValues = arguments[ 0 ];
+				for ( i = 0; i < vals.length; i += 1 ) {
+					vals[ i ] = this._trimAlignValue( newValues[ i ] );
+					this._change( null, i );
+				}
+				this._refreshValue();
+			} else {
+				if ( this._hasMultipleValues() ) {
+					return this._values( index );
+				} else {
+					return this.value();
+				}
+			}
+		} else {
+			return this._values();
+		}
+	},
+
+	_setOption: function( key, value ) {
+		var i,
+			valsLength = 0;
+
+		if ( key === "range" && this.options.range === true ) {
+			if ( value === "min" ) {
+				this.options.value = this._values( 0 );
+				this.options.values = null;
+			} else if ( value === "max" ) {
+				this.options.value = this._values( this.options.values.length - 1 );
+				this.options.values = null;
+			}
+		}
+
+		if ( $.isArray( this.options.values ) ) {
+			valsLength = this.options.values.length;
+		}
+
+		this._super( key, value );
+
+		switch ( key ) {
+			case "orientation":
+				this._detectOrientation();
+				this._removeClass( "ui-slider-horizontal ui-slider-vertical" )
+					._addClass( "ui-slider-" + this.orientation );
+				this._refreshValue();
+				if ( this.options.range ) {
+					this._refreshRange( value );
+				}
+
+				// Reset positioning from previous orientation
+				this.handles.css( value === "horizontal" ? "bottom" : "left", "" );
+				break;
+			case "value":
+				this._animateOff = true;
+				this._refreshValue();
+				this._change( null, 0 );
+				this._animateOff = false;
+				break;
+			case "values":
+				this._animateOff = true;
+				this._refreshValue();
+
+				// Start from the last handle to prevent unreachable handles (#9046)
+				for ( i = valsLength - 1; i >= 0; i-- ) {
+					this._change( null, i );
+				}
+				this._animateOff = false;
+				break;
+			case "step":
+			case "min":
+			case "max":
+				this._animateOff = true;
+				this._calculateNewMax();
+				this._refreshValue();
+				this._animateOff = false;
+				break;
+			case "range":
+				this._animateOff = true;
+				this._refresh();
+				this._animateOff = false;
+				break;
+		}
+	},
+
+	_setOptionDisabled: function( value ) {
+		this._super( value );
+
+		this._toggleClass( null, "ui-state-disabled", !!value );
+	},
+
+	//internal value getter
+	// _value() returns value trimmed by min and max, aligned by step
+	_value: function() {
+		var val = this.options.value;
+		val = this._trimAlignValue( val );
+
+		return val;
+	},
+
+	//internal values getter
+	// _values() returns array of values trimmed by min and max, aligned by step
+	// _values( index ) returns single value trimmed by min and max, aligned by step
+	_values: function( index ) {
+		var val,
+			vals,
+			i;
+
+		if ( arguments.length ) {
+			val = this.options.values[ index ];
+			val = this._trimAlignValue( val );
+
+			return val;
+		} else if ( this._hasMultipleValues() ) {
+
+			// .slice() creates a copy of the array
+			// this copy gets trimmed by min and max and then returned
+			vals = this.options.values.slice();
+			for ( i = 0; i < vals.length; i += 1 ) {
+				vals[ i ] = this._trimAlignValue( vals[ i ] );
+			}
+
+			return vals;
+		} else {
+			return [];
+		}
+	},
+
+	// Returns the step-aligned value that val is closest to, between (inclusive) min and max
+	_trimAlignValue: function( val ) {
+		if ( val <= this._valueMin() ) {
+			return this._valueMin();
+		}
+		if ( val >= this._valueMax() ) {
+			return this._valueMax();
+		}
+		var step = ( this.options.step > 0 ) ? this.options.step : 1,
+			valModStep = ( val - this._valueMin() ) % step,
+			alignValue = val - valModStep;
+
+		if ( Math.abs( valModStep ) * 2 >= step ) {
+			alignValue += ( valModStep > 0 ) ? step : ( -step );
+		}
+
+		// Since JavaScript has problems with large floats, round
+		// the final value to 5 digits after the decimal point (see #4124)
+		return parseFloat( alignValue.toFixed( 5 ) );
+	},
+
+	_calculateNewMax: function() {
+		var max = this.options.max,
+			min = this._valueMin(),
+			step = this.options.step,
+			aboveMin = Math.round( ( max - min ) / step ) * step;
+		max = aboveMin + min;
+		if ( max > this.options.max ) {
+
+			//If max is not divisible by step, rounding off may increase its value
+			max -= step;
+		}
+		this.max = parseFloat( max.toFixed( this._precision() ) );
+	},
+
+	_precision: function() {
+		var precision = this._precisionOf( this.options.step );
+		if ( this.options.min !== null ) {
+			precision = Math.max( precision, this._precisionOf( this.options.min ) );
+		}
+		return precision;
+	},
+
+	_precisionOf: function( num ) {
+		var str = num.toString(),
+			decimal = str.indexOf( "." );
+		return decimal === -1 ? 0 : str.length - decimal - 1;
+	},
+
+	_valueMin: function() {
+		return this.options.min;
+	},
+
+	_valueMax: function() {
+		return this.max;
+	},
+
+	_refreshRange: function( orientation ) {
+		if ( orientation === "vertical" ) {
+			this.range.css( { "width": "", "left": "" } );
+		}
+		if ( orientation === "horizontal" ) {
+			this.range.css( { "height": "", "bottom": "" } );
+		}
+	},
+
+	_refreshValue: function() {
+		var lastValPercent, valPercent, value, valueMin, valueMax,
+			oRange = this.options.range,
+			o = this.options,
+			that = this,
+			animate = ( !this._animateOff ) ? o.animate : false,
+			_set = {};
+
+		if ( this._hasMultipleValues() ) {
+			this.handles.each( function( i ) {
+				valPercent = ( that.values( i ) - that._valueMin() ) / ( that._valueMax() -
+					that._valueMin() ) * 100;
+				_set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
+				$( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );
+				if ( that.options.range === true ) {
+					if ( that.orientation === "horizontal" ) {
+						if ( i === 0 ) {
+							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
+								left: valPercent + "%"
+							}, o.animate );
+						}
+						if ( i === 1 ) {
+							that.range[ animate ? "animate" : "css" ]( {
+								width: ( valPercent - lastValPercent ) + "%"
+							}, {
+								queue: false,
+								duration: o.animate
+							} );
+						}
+					} else {
+						if ( i === 0 ) {
+							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
+								bottom: ( valPercent ) + "%"
+							}, o.animate );
+						}
+						if ( i === 1 ) {
+							that.range[ animate ? "animate" : "css" ]( {
+								height: ( valPercent - lastValPercent ) + "%"
+							}, {
+								queue: false,
+								duration: o.animate
+							} );
+						}
+					}
+				}
+				lastValPercent = valPercent;
+			} );
+		} else {
+			value = this.value();
+			valueMin = this._valueMin();
+			valueMax = this._valueMax();
+			valPercent = ( valueMax !== valueMin ) ?
+					( value - valueMin ) / ( valueMax - valueMin ) * 100 :
+					0;
+			_set[ this.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
+			this.handle.stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );
+
+			if ( oRange === "min" && this.orientation === "horizontal" ) {
+				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
+					width: valPercent + "%"
+				}, o.animate );
+			}
+			if ( oRange === "max" && this.orientation === "horizontal" ) {
+				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
+					width: ( 100 - valPercent ) + "%"
+				}, o.animate );
+			}
+			if ( oRange === "min" && this.orientation === "vertical" ) {
+				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
+					height: valPercent + "%"
+				}, o.animate );
+			}
+			if ( oRange === "max" && this.orientation === "vertical" ) {
+				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
+					height: ( 100 - valPercent ) + "%"
+				}, o.animate );
+			}
+		}
+	},
+
+	_handleEvents: {
+		keydown: function( event ) {
+			var allowed, curVal, newVal, step,
+				index = $( event.target ).data( "ui-slider-handle-index" );
+
+			switch ( event.keyCode ) {
+				case $.ui.keyCode.HOME:
+				case $.ui.keyCode.END:
+				case $.ui.keyCode.PAGE_UP:
+				case $.ui.keyCode.PAGE_DOWN:
+				case $.ui.keyCode.UP:
+				case $.ui.keyCode.RIGHT:
+				case $.ui.keyCode.DOWN:
+				case $.ui.keyCode.LEFT:
+					event.preventDefault();
+					if ( !this._keySliding ) {
+						this._keySliding = true;
+						this._addClass( $( event.target ), null, "ui-state-active" );
+						allowed = this._start( event, index );
+						if ( allowed === false ) {
+							return;
+						}
+					}
+					break;
+			}
+
+			step = this.options.step;
+			if ( this._hasMultipleValues() ) {
+				curVal = newVal = this.values( index );
+			} else {
+				curVal = newVal = this.value();
+			}
+
+			switch ( event.keyCode ) {
+				case $.ui.keyCode.HOME:
+					newVal = this._valueMin();
+					break;
+				case $.ui.keyCode.END:
+					newVal = this._valueMax();
+					break;
+				case $.ui.keyCode.PAGE_UP:
+					newVal = this._trimAlignValue(
+						curVal + ( ( this._valueMax() - this._valueMin() ) / this.numPages )
+					);
+					break;
+				case $.ui.keyCode.PAGE_DOWN:
+					newVal = this._trimAlignValue(
+						curVal - ( ( this._valueMax() - this._valueMin() ) / this.numPages ) );
+					break;
+				case $.ui.keyCode.UP:
+				case $.ui.keyCode.RIGHT:
+					if ( curVal === this._valueMax() ) {
+						return;
+					}
+					newVal = this._trimAlignValue( curVal + step );
+					break;
+				case $.ui.keyCode.DOWN:
+				case $.ui.keyCode.LEFT:
+					if ( curVal === this._valueMin() ) {
+						return;
+					}
+					newVal = this._trimAlignValue( curVal - step );
+					break;
+			}
+
+			this._slide( event, index, newVal );
+		},
+		keyup: function( event ) {
+			var index = $( event.target ).data( "ui-slider-handle-index" );
+
+			if ( this._keySliding ) {
+				this._keySliding = false;
+				this._stop( event, index );
+				this._change( event, index );
+				this._removeClass( $( event.target ), null, "ui-state-active" );
+			}
+		}
+	}
+} );
+
+} ) );