public/assets/jquery-ui-1-10-4/ui/jquery.ui.spinner.js

   1 /*!
   2  * jQuery UI Spinner 1.10.4
   3  * http://jqueryui.com
   4  *
   5  * Copyright 2014 jQuery Foundation and other contributors
   6  * Released under the MIT license.
   7  * http://jquery.org/license
   8  *
   9  * http://api.jqueryui.com/spinner/
  10  *
  11  * Depends:
  12  *  jquery.ui.core.js
  13  *  jquery.ui.widget.js
  14  *  jquery.ui.button.js
  15  */
  16 (function( $ ) {
  17
  18 function modifier( fn ) {
  19         return function() {
  20                 var previous = this.element.val();
  21                 fn.apply( this, arguments );
  22                 this._refresh();
  23                 if ( previous !== this.element.val() ) {
  24                         this._trigger( "change" );
  25                 }
  26         };
  27 }
  28
  29 $.widget( "ui.spinner", {
  30         version: "1.10.4",
  31         defaultElement: "<input>",
  32         widgetEventPrefix: "spin",
  33         options: {
  34                 culture: null,
  35                 icons: {
  36                         down: "ui-icon-triangle-1-s",
  37                         up: "ui-icon-triangle-1-n"
  38                 },
  39                 incremental: true,
  40                 max: null,
  41                 min: null,
  42                 numberFormat: null,
  43                 page: 10,
  44                 step: 1,
  45
  46                 change: null,
  47                 spin: null,
  48                 start: null,
  49                 stop: null
  50         },
  51
  52         _create: function() {
  53                 // handle string values that need to be parsed
  54                 this._setOption( "max", this.options.max );
  55                 this._setOption( "min", this.options.min );
  56                 this._setOption( "step", this.options.step );
  57
  58                 // Only format if there is a value, prevents the field from being marked
  59                 // as invalid in Firefox, see #9573.
  60                 if ( this.value() !== "" ) {
  61                         // Format the value, but don't constrain.
  62                         this._value( this.element.val(), true );
  63                 }
  64
  65                 this._draw();
  66                 this._on( this._events );
  67                 this._refresh();
  68
  69                 // turning off autocomplete prevents the browser from remembering the
  70                 // value when navigating through history, so we re-enable autocomplete
  71                 // if the page is unloaded before the widget is destroyed. #7790
  72                 this._on( this.window, {
  73                         beforeunload: function() {
  74                                 this.element.removeAttr( "autocomplete" );
  75                         }
  76                 });
  77         },
  78
  79         _getCreateOptions: function() {
  80                 var options = {},
  81                         element = this.element;
  82
  83                 $.each( [ "min", "max", "step" ], function( i, option ) {
  84                         var value = element.attr( option );
  85                         if ( value !== undefined && value.length ) {
  86                                 options[ option ] = value;
  87                         }
  88                 });
  89
  90                 return options;
  91         },
  92
  93         _events: {
  94                 keydown: function( event ) {
  95                         if ( this._start( event ) && this._keydown( event ) ) {
  96                                 event.preventDefault();
  97                         }
  98                 },
  99                 keyup: "_stop",
 100                 focus: function() {
 101                         this.previous = this.element.val();
 102                 },
 103                 blur: function( event ) {
 104                         if ( this.cancelBlur ) {
 105                                 delete this.cancelBlur;
 106                                 return;
 107                         }
 108
 109                         this._stop();
 110                         this._refresh();
 111                         if ( this.previous !== this.element.val() ) {
 112                                 this._trigger( "change", event );
 113                         }
 114                 },
 115                 mousewheel: function( event, delta ) {
 116                         if ( !delta ) {
 117                                 return;
 118                         }
 119                         if ( !this.spinning && !this._start( event ) ) {
 120                                 return false;
 121                         }
 122
 123                         this._spin( (delta > 0 ? 1 : -1) * this.options.step, event );
 124                         clearTimeout( this.mousewheelTimer );
 125                         this.mousewheelTimer = this._delay(function() {
 126                                 if ( this.spinning ) {
 127                                         this._stop( event );
 128                                 }
 129                         }, 100 );
 130                         event.preventDefault();
 131                 },
 132                 "mousedown .ui-spinner-button": function( event ) {
 133                         var previous;
 134
 135                         // We never want the buttons to have focus; whenever the user is
 136                         // interacting with the spinner, the focus should be on the input.
 137                         // If the input is focused then this.previous is properly set from
 138                         // when the input first received focus. If the input is not focused
 139                         // then we need to set this.previous based on the value before spinning.
 140                         previous = this.element[0] === this.document[0].activeElement ?
 141                                 this.previous : this.element.val();
 142                         function checkFocus() {
 143                                 var isActive = this.element[0] === this.document[0].activeElement;
 144                                 if ( !isActive ) {
 145                                         this.element.focus();
 146                                         this.previous = previous;
 147                                         // support: IE
 148                                         // IE sets focus asynchronously, so we need to check if focus
 149                                         // moved off of the input because the user clicked on the button.
 150                                         this._delay(function() {
 151                                                 this.previous = previous;
 152                                         });
 153                                 }
 154                         }
 155
 156                         // ensure focus is on (or stays on) the text field
 157                         event.preventDefault();
 158                         checkFocus.call( this );
 159
 160                         // support: IE
 161                         // IE doesn't prevent moving focus even with event.preventDefault()
 162                         // so we set a flag to know when we should ignore the blur event
 163                         // and check (again) if focus moved off of the input.
 164                         this.cancelBlur = true;
 165                         this._delay(function() {
 166                                 delete this.cancelBlur;
 167                                 checkFocus.call( this );
 168                         });
 169
 170                         if ( this._start( event ) === false ) {
 171                                 return;
 172                         }
 173
 174                         this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
 175                 },
 176                 "mouseup .ui-spinner-button": "_stop",
 177                 "mouseenter .ui-spinner-button": function( event ) {
 178                         // button will add ui-state-active if mouse was down while mouseleave and kept down
 179                         if ( !$( event.currentTarget ).hasClass( "ui-state-active" ) ) {
 180                                 return;
 181                         }
 182
 183                         if ( this._start( event ) === false ) {
 184                                 return false;
 185                         }
 186                         this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
 187                 },
 188                 // TODO: do we really want to consider this a stop?
 189                 // shouldn't we just stop the repeater and wait until mouseup before
 190                 // we trigger the stop event?
 191                 "mouseleave .ui-spinner-button": "_stop"
 192         },
 193
 194         _draw: function() {
 195                 var uiSpinner = this.uiSpinner = this.element
 196                         .addClass( "ui-spinner-input" )
 197                         .attr( "autocomplete", "off" )
 198                         .wrap( this._uiSpinnerHtml() )
 199                         .parent()
 200                                 // add buttons
 201                                 .append( this._buttonHtml() );
 202
 203                 this.element.attr( "role", "spinbutton" );
 204
 205                 // button bindings
 206                 this.buttons = uiSpinner.find( ".ui-spinner-button" )
 207                         .attr( "tabIndex", -1 )
 208                         .button()
 209                         .removeClass( "ui-corner-all" );
 210
 211                 // IE 6 doesn't understand height: 50% for the buttons
 212                 // unless the wrapper has an explicit height
 213                 if ( this.buttons.height() > Math.ceil( uiSpinner.height() * 0.5 ) &&
 214                                 uiSpinner.height() > 0 ) {
 215                         uiSpinner.height( uiSpinner.height() );
 216                 }
 217
 218                 // disable spinner if element was already disabled
 219                 if ( this.options.disabled ) {
 220                         this.disable();
 221                 }
 222         },
 223
 224         _keydown: function( event ) {
 225                 var options = this.options,
 226                         keyCode = $.ui.keyCode;
 227
 228                 switch ( event.keyCode ) {
 229                 case keyCode.UP:
 230                         this._repeat( null, 1, event );
 231                         return true;
 232                 case keyCode.DOWN:
 233                         this._repeat( null, -1, event );
 234                         return true;
 235                 case keyCode.PAGE_UP:
 236                         this._repeat( null, options.page, event );
 237                         return true;
 238                 case keyCode.PAGE_DOWN:
 239                         this._repeat( null, -options.page, event );
 240                         return true;
 241                 }
 242
 243                 return false;
 244         },
 245
 246         _uiSpinnerHtml: function() {
 247                 return "<span class='ui-spinner ui-widget ui-widget-content ui-corner-all'></span>";
 248         },
 249
 250         _buttonHtml: function() {
 251                 return "" +
 252                         "<a class='ui-spinner-button ui-spinner-up ui-corner-tr'>" +
 253                                 "<span class='ui-icon " + this.options.icons.up + "'>&#9650;</span>" +
 254                         "</a>" +
 255                         "<a class='ui-spinner-button ui-spinner-down ui-corner-br'>" +
 256                                 "<span class='ui-icon " + this.options.icons.down + "'>&#9660;</span>" +
 257                         "</a>";
 258         },
 259
 260         _start: function( event ) {
 261                 if ( !this.spinning && this._trigger( "start", event ) === false ) {
 262                         return false;
 263                 }
 264
 265                 if ( !this.counter ) {
 266                         this.counter = 1;
 267                 }
 268                 this.spinning = true;
 269                 return true;
 270         },
 271
 272         _repeat: function( i, steps, event ) {
 273                 i = i || 500;
 274
 275                 clearTimeout( this.timer );
 276                 this.timer = this._delay(function() {
 277                         this._repeat( 40, steps, event );
 278                 }, i );
 279
 280                 this._spin( steps * this.options.step, event );
 281         },
 282
 283         _spin: function( step, event ) {
 284                 var value = this.value() || 0;
 285
 286                 if ( !this.counter ) {
 287                         this.counter = 1;
 288                 }
 289
 290                 value = this._adjustValue( value + step * this._increment( this.counter ) );
 291
 292                 if ( !this.spinning || this._trigger( "spin", event, { value: value } ) !== false) {
 293                         this._value( value );
 294                         this.counter++;
 295                 }
 296         },
 297
 298         _increment: function( i ) {
 299                 var incremental = this.options.incremental;
 300
 301                 if ( incremental ) {
 302                         return $.isFunction( incremental ) ?
 303                                 incremental( i ) :
 304                                 Math.floor( i*i*i/50000 - i*i/500 + 17*i/200 + 1 );
 305                 }
 306
 307                 return 1;
 308         },
 309
 310         _precision: function() {
 311                 var precision = this._precisionOf( this.options.step );
 312                 if ( this.options.min !== null ) {
 313                         precision = Math.max( precision, this._precisionOf( this.options.min ) );
 314                 }
 315                 return precision;
 316         },
 317
 318         _precisionOf: function( num ) {
 319                 var str = num.toString(),
 320                         decimal = str.indexOf( "." );
 321                 return decimal === -1 ? 0 : str.length - decimal - 1;
 322         },
 323
 324         _adjustValue: function( value ) {
 325                 var base, aboveMin,
 326                         options = this.options;
 327
 328                 // make sure we're at a valid step
 329                 // - find out where we are relative to the base (min or 0)
 330                 base = options.min !== null ? options.min : 0;
 331                 aboveMin = value - base;
 332                 // - round to the nearest step
 333                 aboveMin = Math.round(aboveMin / options.step) * options.step;
 334                 // - rounding is based on 0, so adjust back to our base
 335                 value = base + aboveMin;
 336
 337                 // fix precision from bad JS floating point math
 338                 value = parseFloat( value.toFixed( this._precision() ) );
 339
 340                 // clamp the value
 341                 if ( options.max !== null && value > options.max) {
 342                         return options.max;
 343                 }
 344                 if ( options.min !== null && value < options.min ) {
 345                         return options.min;
 346                 }
 347
 348                 return value;
 349         },
 350
 351         _stop: function( event ) {
 352                 if ( !this.spinning ) {
 353                         return;
 354                 }
 355
 356                 clearTimeout( this.timer );
 357                 clearTimeout( this.mousewheelTimer );
 358                 this.counter = 0;
 359                 this.spinning = false;
 360                 this._trigger( "stop", event );
 361         },
 362
 363         _setOption: function( key, value ) {
 364                 if ( key === "culture" || key === "numberFormat" ) {
 365                         var prevValue = this._parse( this.element.val() );
 366                         this.options[ key ] = value;
 367                         this.element.val( this._format( prevValue ) );
 368                         return;
 369                 }
 370
 371                 if ( key === "max" || key === "min" || key === "step" ) {
 372                         if ( typeof value === "string" ) {
 373                                 value = this._parse( value );
 374                         }
 375                 }
 376                 if ( key === "icons" ) {
 377                         this.buttons.first().find( ".ui-icon" )
 378                                 .removeClass( this.options.icons.up )
 379                                 .addClass( value.up );
 380                         this.buttons.last().find( ".ui-icon" )
 381                                 .removeClass( this.options.icons.down )
 382                                 .addClass( value.down );
 383                 }
 384
 385                 this._super( key, value );
 386
 387                 if ( key === "disabled" ) {
 388                         if ( value ) {
 389                                 this.element.prop( "disabled", true );
 390                                 this.buttons.button( "disable" );
 391                         } else {
 392                                 this.element.prop( "disabled", false );
 393                                 this.buttons.button( "enable" );
 394                         }
 395                 }
 396         },
 397
 398         _setOptions: modifier(function( options ) {
 399                 this._super( options );
 400                 this._value( this.element.val() );
 401         }),
 402
 403         _parse: function( val ) {
 404                 if ( typeof val === "string" && val !== "" ) {
 405                         val = window.Globalize && this.options.numberFormat ?
 406                                 Globalize.parseFloat( val, 10, this.options.culture ) : +val;
 407                 }
 408                 return val === "" || isNaN( val ) ? null : val;
 409         },
 410
 411         _format: function( value ) {
 412                 if ( value === "" ) {
 413                         return "";
 414                 }
 415                 return window.Globalize && this.options.numberFormat ?
 416                         Globalize.format( value, this.options.numberFormat, this.options.culture ) :
 417                         value;
 418         },
 419
 420         _refresh: function() {
 421                 this.element.attr({
 422                         "aria-valuemin": this.options.min,
 423                         "aria-valuemax": this.options.max,
 424                         // TODO: what should we do with values that can't be parsed?
 425                         "aria-valuenow": this._parse( this.element.val() )
 426                 });
 427         },
 428
 429         // update the value without triggering change
 430         _value: function( value, allowAny ) {
 431                 var parsed;
 432                 if ( value !== "" ) {
 433                         parsed = this._parse( value );
 434                         if ( parsed !== null ) {
 435                                 if ( !allowAny ) {
 436                                         parsed = this._adjustValue( parsed );
 437                                 }
 438                                 value = this._format( parsed );
 439                         }
 440                 }
 441                 this.element.val( value );
 442                 this._refresh();
 443         },
 444
 445         _destroy: function() {
 446                 this.element
 447                         .removeClass( "ui-spinner-input" )
 448                         .prop( "disabled", false )
 449                         .removeAttr( "autocomplete" )
 450                         .removeAttr( "role" )
 451                         .removeAttr( "aria-valuemin" )
 452                         .removeAttr( "aria-valuemax" )
 453                         .removeAttr( "aria-valuenow" );
 454                 this.uiSpinner.replaceWith( this.element );
 455         },
 456
 457         stepUp: modifier(function( steps ) {
 458                 this._stepUp( steps );
 459         }),
 460         _stepUp: function( steps ) {
 461                 if ( this._start() ) {
 462                         this._spin( (steps || 1) * this.options.step );
 463                         this._stop();
 464                 }
 465         },
 466
 467         stepDown: modifier(function( steps ) {
 468                 this._stepDown( steps );
 469         }),
 470         _stepDown: function( steps ) {
 471                 if ( this._start() ) {
 472                         this._spin( (steps || 1) * -this.options.step );
 473                         this._stop();
 474                 }
 475         },
 476
 477         pageUp: modifier(function( pages ) {
 478                 this._stepUp( (pages || 1) * this.options.page );
 479         }),
 480
 481         pageDown: modifier(function( pages ) {
 482                 this._stepDown( (pages || 1) * this.options.page );
 483         }),
 484
 485         value: function( newVal ) {
 486                 if ( !arguments.length ) {
 487                         return this._parse( this.element.val() );
 488                 }
 489                 modifier( this._value ).call( this, newVal );
 490         },
 491
 492         widget: function() {
 493                 return this.uiSpinner;
 494         }
 495 });
 496
 497 }( jQuery ) );