js2/mwEmbed/jquery/jquery.ui-1.7.1/ui/ui.slider.js

   1 /*
   2  * jQuery UI Slider 1.7.1
   3  *
   4  * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
   5  * Dual licensed under the MIT (MIT-LICENSE.txt)
   6  * and GPL (GPL-LICENSE.txt) licenses.
   7  *
   8  * http://docs.jquery.com/UI/Slider
   9  *
  10  * Depends:
  11  *      ui.core.js
  12  */
  13
  14 (function($) {
  15
  16 $.widget("ui.slider", $.extend({}, $.ui.mouse, {
  17
  18         _init: function() {
  19
  20                 var self = this, o = this.options;
  21                 this._keySliding = false;
  22                 this._handleIndex = null;
  23                 this._detectOrientation();
  24                 this._mouseInit();
  25
  26                 this.element
  27                         .addClass("ui-slider"
  28                                 + " ui-slider-" + this.orientation
  29                                 + " ui-widget"
  30                                 + " ui-widget-content"
  31                                 + " ui-corner-all");
  32
  33                 this.range = $([]);
  34
  35                 if (o.range) {
  36
  37                         if (o.range === true) {
  38                                 this.range = $('<div></div>');
  39                                 if (!o.values) o.values = [this._valueMin(), this._valueMin()];
  40                                 if (o.values.length && o.values.length != 2) {
  41                                         o.values = [o.values[0], o.values[0]];
  42                                 }
  43                         } else {
  44                                 this.range = $('<div></div>');
  45                         }
  46
  47                         this.range
  48                                 .appendTo(this.element)
  49                                 .addClass("ui-slider-range");
  50
  51                         if (o.range == "min" || o.range == "max") {
  52                                 this.range.addClass("ui-slider-range-" + o.range);
  53                         }
  54
  55                         // note: this isn't the most fittingly semantic framework class for this element,
  56                         // but worked best visually with a variety of themes
  57                         this.range.addClass("ui-widget-header");
  58
  59                 }
  60
  61                 if ($(".ui-slider-handle", this.element).length == 0)
  62                         $('<a href="#"></a>')
  63                                 .appendTo(this.element)
  64                                 .addClass("ui-slider-handle");
  65
  66                 if (o.values && o.values.length) {
  67                         while ($(".ui-slider-handle", this.element).length < o.values.length)
  68                                 $('<a href="#"></a>')
  69                                         .appendTo(this.element)
  70                                         .addClass("ui-slider-handle");
  71                 }
  72
  73                 this.handles = $(".ui-slider-handle", this.element)
  74                         .addClass("ui-state-default"
  75                                 + " ui-corner-all");
  76
  77                 this.handle = this.handles.eq(0);
  78
  79                 this.handles.add(this.range).filter("a")
  80                         .click(function(event) { event.preventDefault(); })
  81                         .hover(function() { $(this).addClass('ui-state-hover'); }, function() { $(this).removeClass('ui-state-hover'); })
  82                         .focus(function() { $(".ui-slider .ui-state-focus").removeClass('ui-state-focus'); $(this).addClass('ui-state-focus'); })
  83                         .blur(function() { $(this).removeClass('ui-state-focus'); });
  84
  85                 this.handles.each(function(i) {
  86                         $(this).data("index.ui-slider-handle", i);
  87                 });
  88
  89                 this.handles.keydown(function(event) {
  90
  91                         var ret = true;
  92
  93                         var index = $(this).data("index.ui-slider-handle");
  94
  95                         if (self.options.disabled)
  96                                 return;
  97
  98                         switch (event.keyCode) {
  99                                 case $.ui.keyCode.HOME:
 100                                 case $.ui.keyCode.END:
 101                                 case $.ui.keyCode.UP:
 102                                 case $.ui.keyCode.RIGHT:
 103                                 case $.ui.keyCode.DOWN:
 104                                 case $.ui.keyCode.LEFT:
 105                                         ret = false;
 106                                         if (!self._keySliding) {
 107                                                 self._keySliding = true;
 108                                                 $(this).addClass("ui-state-active");
 109                                                 self._start(event, index);
 110                                         }
 111                                         break;
 112                         }
 113
 114                         var curVal, newVal, step = self._step();
 115                         if (self.options.values && self.options.values.length) {
 116                                 curVal = newVal = self.values(index);
 117                         } else {
 118                                 curVal = newVal = self.value();
 119                         }
 120
 121                         switch (event.keyCode) {
 122                                 case $.ui.keyCode.HOME:
 123                                         newVal = self._valueMin();
 124                                         break;
 125                                 case $.ui.keyCode.END:
 126                                         newVal = self._valueMax();
 127                                         break;
 128                                 case $.ui.keyCode.UP:
 129                                 case $.ui.keyCode.RIGHT:
 130                                         if(curVal == self._valueMax()) return;
 131                                         newVal = curVal + step;
 132                                         break;
 133                                 case $.ui.keyCode.DOWN:
 134                                 case $.ui.keyCode.LEFT:
 135                                         if(curVal == self._valueMin()) return;
 136                                         newVal = curVal - step;
 137                                         break;
 138                         }
 139
 140                         self._slide(event, index, newVal);
 141
 142                         return ret;
 143
 144                 }).keyup(function(event) {
 145
 146                         var index = $(this).data("index.ui-slider-handle");
 147
 148                         if (self._keySliding) {
 149                                 self._stop(event, index);
 150                                 self._change(event, index);
 151                                 self._keySliding = false;
 152                                 $(this).removeClass("ui-state-active");
 153                         }
 154
 155                 });
 156
 157                 this._refreshValue();
 158
 159         },
 160
 161         destroy: function() {
 162
 163                 this.handles.remove();
 164                 this.range.remove();
 165
 166                 this.element
 167                         .removeClass("ui-slider"
 168                                 + " ui-slider-horizontal"
 169                                 + " ui-slider-vertical"
 170                                 + " ui-slider-disabled"
 171                                 + " ui-widget"
 172                                 + " ui-widget-content"
 173                                 + " ui-corner-all")
 174                         .removeData("slider")
 175                         .unbind(".slider");
 176
 177                 this._mouseDestroy();
 178
 179         },
 180
 181         _mouseCapture: function(event) {
 182
 183                 var o = this.options;
 184
 185                 if (o.disabled)
 186                         return false;
 187
 188                 this.elementSize = {
 189                         width: this.element.outerWidth(),
 190                         height: this.element.outerHeight()
 191                 };
 192                 this.elementOffset = this.element.offset();
 193
 194                 var position = { x: event.pageX, y: event.pageY };
 195                 var normValue = this._normValueFromMouse(position);
 196
 197                 var distance = this._valueMax() - this._valueMin() + 1, closestHandle;
 198                 var self = this, index;
 199                 this.handles.each(function(i) {
 200                         var thisDistance = Math.abs(normValue - self.values(i));
 201                         if (distance > thisDistance) {
 202                                 distance = thisDistance;
 203                                 closestHandle = $(this);
 204                                 index = i;
 205                         }
 206                 });
 207
 208                 // workaround for bug #3736 (if both handles of a range are at 0,
 209                 // the first is always used as the one with least distance,
 210                 // and moving it is obviously prevented by preventing negative ranges)
 211                 if(o.range == true && this.values(1) == o.min) {
 212                         closestHandle = $(this.handles[++index]);
 213                 }
 214
 215                 this._start(event, index);
 216
 217                 self._handleIndex = index;
 218
 219                 closestHandle
 220                         .addClass("ui-state-active")
 221                         .focus();
 222
 223                 var offset = closestHandle.offset();
 224                 var mouseOverHandle = !$(event.target).parents().andSelf().is('.ui-slider-handle');
 225                 this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : {
 226                         left: event.pageX - offset.left - (closestHandle.width() / 2),
 227                         top: event.pageY - offset.top
 228                                 - (closestHandle.height() / 2)
 229                                 - (parseInt(closestHandle.css('borderTopWidth'),10) || 0)
 230                                 - (parseInt(closestHandle.css('borderBottomWidth'),10) || 0)
 231                                 + (parseInt(closestHandle.css('marginTop'),10) || 0)
 232                 };
 233
 234                 normValue = this._normValueFromMouse(position);
 235                 this._slide(event, index, normValue);
 236                 return true;
 237
 238         },
 239
 240         _mouseStart: function(event) {
 241                 return true;
 242         },
 243
 244         _mouseDrag: function(event) {
 245
 246                 var position = { x: event.pageX, y: event.pageY };
 247                 var normValue = this._normValueFromMouse(position);
 248
 249                 this._slide(event, this._handleIndex, normValue);
 250
 251                 return false;
 252
 253         },
 254
 255         _mouseStop: function(event) {
 256
 257                 this.handles.removeClass("ui-state-active");
 258                 this._stop(event, this._handleIndex);
 259                 this._change(event, this._handleIndex);
 260                 this._handleIndex = null;
 261                 this._clickOffset = null;
 262
 263                 return false;
 264
 265         },
 266
 267         _detectOrientation: function() {
 268                 this.orientation = this.options.orientation == 'vertical' ? 'vertical' : 'horizontal';
 269         },
 270
 271         _normValueFromMouse: function(position) {
 272
 273                 var pixelTotal, pixelMouse;
 274                 if ('horizontal' == this.orientation) {
 275                         pixelTotal = this.elementSize.width;
 276                         pixelMouse = position.x - this.elementOffset.left - (this._clickOffset ? this._clickOffset.left : 0);
 277                 } else {
 278                         pixelTotal = this.elementSize.height;
 279                         pixelMouse = position.y - this.elementOffset.top - (this._clickOffset ? this._clickOffset.top : 0);
 280                 }
 281
 282                 var percentMouse = (pixelMouse / pixelTotal);
 283                 if (percentMouse > 1) percentMouse = 1;
 284                 if (percentMouse < 0) percentMouse = 0;
 285                 if ('vertical' == this.orientation)
 286                         percentMouse = 1 - percentMouse;
 287
 288                 var valueTotal = this._valueMax() - this._valueMin(),
 289                         valueMouse = percentMouse * valueTotal,
 290                         valueMouseModStep = valueMouse % this.options.step,
 291                         normValue = this._valueMin() + valueMouse - valueMouseModStep;
 292
 293                 if (valueMouseModStep > (this.options.step / 2))
 294                         normValue += this.options.step;
 295
 296                 // Since JavaScript has problems with large floats, round
 297                 // the final value to 5 digits after the decimal point (see #4124)
 298                 return parseFloat(normValue.toFixed(5));
 299
 300         },
 301
 302         _start: function(event, index) {
 303                 var uiHash = {
 304                         handle: this.handles[index],
 305                         value: this.value()
 306                 };
 307                 if (this.options.values && this.options.values.length) {
 308                         uiHash.value = this.values(index)
 309                         uiHash.values = this.values()
 310                 }
 311                 this._trigger("start", event, uiHash);
 312         },
 313
 314         _slide: function(event, index, newVal) {
 315
 316                 var handle = this.handles[index];
 317
 318                 if (this.options.values && this.options.values.length) {
 319
 320                         var otherVal = this.values(index ? 0 : 1);
 321
 322                         if ((index == 0 && newVal >= otherVal) || (index == 1 && newVal <= otherVal))
 323                                 newVal = otherVal;
 324
 325                         if (newVal != this.values(index)) {
 326                                 var newValues = this.values();
 327                                 newValues[index] = newVal;
 328                                 // A slide can be canceled by returning false from the slide callback
 329                                 var allowed = this._trigger("slide", event, {
 330                                         handle: this.handles[index],
 331                                         value: newVal,
 332                                         values: newValues
 333                                 });
 334                                 var otherVal = this.values(index ? 0 : 1);
 335                                 if (allowed !== false) {
 336                                         this.values(index, newVal, ( event.type == 'mousedown' && this.options.animate ), true);
 337                                 }
 338                         }
 339
 340                 } else {
 341
 342                         if (newVal != this.value()) {
 343                                 // A slide can be canceled by returning false from the slide callback
 344                                 var allowed = this._trigger("slide", event, {
 345                                         handle: this.handles[index],
 346                                         value: newVal
 347                                 });
 348                                 if (allowed !== false) {
 349                                         this._setData('value', newVal, ( event.type == 'mousedown' && this.options.animate ));
 350                                 }
 351
 352                         }
 353
 354                 }
 355
 356         },
 357
 358         _stop: function(event, index) {
 359                 var uiHash = {
 360                         handle: this.handles[index],
 361                         value: this.value()
 362                 };
 363                 if (this.options.values && this.options.values.length) {
 364                         uiHash.value = this.values(index)
 365                         uiHash.values = this.values()
 366                 }
 367                 this._trigger("stop", event, uiHash);
 368         },
 369
 370         _change: function(event, index) {
 371                 var uiHash = {
 372                         handle: this.handles[index],
 373                         value: this.value()
 374                 };
 375                 if (this.options.values && this.options.values.length) {
 376                         uiHash.value = this.values(index)
 377                         uiHash.values = this.values()
 378                 }
 379                 this._trigger("change", event, uiHash);
 380         },
 381
 382         value: function(newValue) {
 383
 384                 if (arguments.length) {
 385                         this._setData("value", newValue);
 386                         this._change(null, 0);
 387                 }
 388
 389                 return this._value();
 390
 391         },
 392
 393         values: function(index, newValue, animated, noPropagation) {
 394
 395                 if (arguments.length > 1) {
 396                         this.options.values[index] = newValue;
 397                         this._refreshValue(animated);
 398                         if(!noPropagation) this._change(null, index);
 399                 }
 400
 401                 if (arguments.length) {
 402                         if (this.options.values && this.options.values.length) {
 403                                 return this._values(index);
 404                         } else {
 405                                 return this.value();
 406                         }
 407                 } else {
 408                         return this._values();
 409                 }
 410
 411         },
 412
 413         _setData: function(key, value, animated) {
 414
 415                 $.widget.prototype._setData.apply(this, arguments);
 416
 417                 switch (key) {
 418                         case 'orientation':
 419
 420                                 this._detectOrientation();
 421
 422                                 this.element
 423                                         .removeClass("ui-slider-horizontal ui-slider-vertical")
 424                                         .addClass("ui-slider-" + this.orientation);
 425                                 this._refreshValue(animated);
 426                                 break;
 427                         case 'value':
 428                                 this._refreshValue(animated);
 429                                 break;
 430                 }
 431
 432         },
 433
 434         _step: function() {
 435                 var step = this.options.step;
 436                 return step;
 437         },
 438
 439         _value: function() {
 440
 441                 var val = this.options.value;
 442                 if (val < this._valueMin()) val = this._valueMin();
 443                 if (val > this._valueMax()) val = this._valueMax();
 444
 445                 return val;
 446
 447         },
 448
 449         _values: function(index) {
 450
 451                 if (arguments.length) {
 452                         var val = this.options.values[index];
 453                         if (val < this._valueMin()) val = this._valueMin();
 454                         if (val > this._valueMax()) val = this._valueMax();
 455
 456                         return val;
 457                 } else {
 458                         return this.options.values;
 459                 }
 460
 461         },
 462
 463         _valueMin: function() {
 464                 var valueMin = this.options.min;
 465                 return valueMin;
 466         },
 467
 468         _valueMax: function() {
 469                 var valueMax = this.options.max;
 470                 return valueMax;
 471         },
 472
 473         _refreshValue: function(animate) {
 474
 475                 var oRange = this.options.range, o = this.options, self = this;
 476
 477                 if (this.options.values && this.options.values.length) {
 478                         var vp0, vp1;
 479                         this.handles.each(function(i, j) {
 480                                 var valPercent = (self.values(i) - self._valueMin()) / (self._valueMax() - self._valueMin()) * 100;
 481                                 var _set = {}; _set[self.orientation == 'horizontal' ? 'left' : 'bottom'] = valPercent + '%';
 482                                 $(this).stop(1,1)[animate ? 'animate' : 'css'](_set, o.animate);
 483                                 if (self.options.range === true) {
 484                                         if (self.orientation == 'horizontal') {
 485                                                 (i == 0) && self.range.stop(1,1)[animate ? 'animate' : 'css']({ left: valPercent + '%' }, o.animate);
 486                                                 (i == 1) && self.range[animate ? 'animate' : 'css']({ width: (valPercent - lastValPercent) + '%' }, { queue: false, duration: o.animate });
 487                                         } else {
 488                                                 (i == 0) && self.range.stop(1,1)[animate ? 'animate' : 'css']({ bottom: (valPercent) + '%' }, o.animate);
 489                                                 (i == 1) && self.range[animate ? 'animate' : 'css']({ height: (valPercent - lastValPercent) + '%' }, { queue: false, duration: o.animate });
 490                                         }
 491                                 }
 492                                 lastValPercent = valPercent;
 493                         });
 494                 } else {
 495                         var value = this.value(),
 496                                 valueMin = this._valueMin(),
 497                                 valueMax = this._valueMax(),
 498                                 valPercent = valueMax != valueMin
 499                                         ? (value - valueMin) / (valueMax - valueMin) * 100
 500                                         : 0;
 501                         var _set = {}; _set[self.orientation == 'horizontal' ? 'left' : 'bottom'] = valPercent + '%';
 502                         this.handle.stop(1,1)[animate ? 'animate' : 'css'](_set, o.animate);
 503
 504                         (oRange == "min") && (this.orientation == "horizontal") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ width: valPercent + '%' }, o.animate);
 505                         (oRange == "max") && (this.orientation == "horizontal") && this.range[animate ? 'animate' : 'css']({ width: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
 506                         (oRange == "min") && (this.orientation == "vertical") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ height: valPercent + '%' }, o.animate);
 507                         (oRange == "max") && (this.orientation == "vertical") && this.range[animate ? 'animate' : 'css']({ height: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
 508                 }
 509
 510         }
 511
 512 }));
 513
 514 $.extend($.ui.slider, {
 515         getter: "value values",
 516         version: "1.7.1",
 517         eventPrefix: "slide",
 518         defaults: {
 519                 animate: false,
 520                 delay: 0,
 521                 distance: 0,
 522                 max: 100,
 523                 min: 0,
 524                 orientation: 'horizontal',
 525                 range: false,
 526                 step: 1,
 527                 value: 0,
 528                 values: null
 529         }
 530 });
 531
 532 })(jQuery);
 533