/usr/share/javascript/jquery-ui/ui/widgets
Edit: /usr/share/javascript/jquery-ui/ui/widgets/slider.js (19595B)
/*!
* jQuery UI Slider 1.13.1
* 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 ) {
"use strict";
if ( typeof define === "function" && define.amd ) {
// AMD. Register as an anonymous module.
define( [
"jquery",
"./mouse",
"../keycode",
"../version",
"../widget"
], factory );
} else {
// Browser globals
factory( jQuery );
}
} )( function( $ ) {
"use strict";
return $.widget( "ui.slider", $.ui.mouse, {
version: "1.13.1",
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 = "
",
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 ( Array.isArray( options.values ) ) {
options.values = options.values.slice( 0 );
}
}
if ( !this.range || !this.range.length ) {
this.range = $( "
" )
.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 ( Array.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 ( Array.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" );
}
}
}
} );
} );