0.6.x/js/01_core/14_XTimer.js

   1 /**\r
   2  * use X.Callback\r
   3  */\r
   4 \r
   5 /*\r
   6  * \r
   7  * http://please-sleep.cou929.nu/script-yielding-with-setimmediate.html\r
   8  * setImmediate での script yielding\r
   9  * \r
  10  * http://ie.microsoft.com/testdrive/Performance/setImmediateSorting/Default.html\r
  11  * setImmediate API\r
  12  * \r
  13  * if( timer < 4ms ) useSetImmediate\r
  14  * \r
  15  *         if (window.msSetImmediate)\r
  16         {\r
  17             this.timer = msSetImmediate(function () { t.stepper(); });        \r
  18         }\r
  19         else if (window.MozSetImmediate)\r
  20         {\r
  21             this.timer = MozSetImmediate(function () { t.stepper(); });        \r
  22         }\r
  23         else if (window.WebkitSetImmediate) {\r
  24             this.timer = WebkitSetImmediate(function () { t.stepper(); });\r
  25         }\r
  26         else if (window.OSetImmediate)\r
  27         {\r
  28             this.timer = OSetImmediate(function () { t.stepper(); });        \r
  29         }\r
  30  */\r
  31 \r
  32 \r
  33 // ------------------------------------------------------------------------- //\r
  34 // ------------ local variables -------------------------------------------- //\r
  35 // ------------------------------------------------------------------------- //\r
  36 \r
  37 var X_Timer_now = Date.now || function(){ return +new Date; },\r
  38 \r
  39         X_Timer_SET_TIMEOUT   = window.setTimeout,\r
  40         X_Timer_CLEAR_TIMEOUT = window.clearTimeout,\r
  41 \r
  42         // http://uupaa.hatenablog.com/entry/2012/02/01/083607\r
  43         // Firefox 4 partial (request only), Mobile Firefox5 ready (request only), Firefox 11 ready (cancel impl)       \r
  44         X_Timer_REQ_ANIME_FRAME =\r
  45                 window.requestAnimationFrame ||\r
  46                 window.webkitRequestAnimationFrame ||\r
  47                 window.mozRequestAnimationFrame && window.mozCancelRequestAnimationFrame ||\r
  48                 window.oRequestAnimationFrame ||\r
  49                 window.msRequestAnimationFrame ||\r
  50                 false,\r
  51 \r
  52         X_Timer_CANCEL_ANIME_FRAME =\r
  53                 window.cancelRequestAnimationFrame ||\r
  54                 window.webkitCancelAnimationFrame ||\r
  55                 window.webkitCancelRequestAnimationFrame ||\r
  56                 window.mozCancelRequestAnimationFrame ||\r
  57                 window.oCancelRequestAnimationFrame ||\r
  58                 window.msCancelRequestAnimationFrame ||\r
  59                 false,\r
  60                 \r
  61         X_Timer_INTERVAL_TIME  = 16,\r
  62         X_Timer_TICKET_LIST    = [],\r
  63         X_Timer_removal        = null,\r
  64         X_Timer_skipUpdate     = false,\r
  65         X_Timer_uid            = 0,\r
  66         X_Timer_timerId        = 0,\r
  67         X_Timer_busyTimeout    = false,\r
  68         X_Timer_timeStamp      = 0, // setTimeout に登録した時間\r
  69         X_Timer_waitTime       = 0,     // 待ち時間\r
  70         \r
  71         X_Timer_REQ_FRAME_LIST = [],\r
  72         X_Timer_requestID      = 0,\r
  73         X_Timer_busyOnFrame    = false;\r
  74 \r
  75 // ------------------------------------------------------------------------- //\r
  76 // --- interface ----------------------------------------------------------- //\r
  77 // ------------------------------------------------------------------------- //\r
  78 X.Timer = {\r
  79         \r
  80         now : X_Timer_now,\r
  81         \r
  82         add : function( time, opt_count, args1, args2, args3 ){\r
  83                 var list = X_Timer_TICKET_LIST,\r
  84                         hash, obj;\r
  85                 time = time < X_Timer_INTERVAL_TIME ? 1 : time / X_Timer_INTERVAL_TIME | 0; // 正の数で使える「Math.floor(x)」を「(x | 0)」に;\r
  86                 \r
  87                 if( !X.Type.isNumber( opt_count ) ){\r
  88                         args3 = args2;\r
  89                         args2 = args1;\r
  90                         args1 = opt_count;\r
  91                         opt_count = 0;\r
  92                 };\r
  93                 \r
  94                 hash = X_Callback_classifyCallbackArgs( args1, args2, args3 );\r
  95                 if( !hash ) return -1; // dev only\r
  96                 \r
  97                 if( !hash.k ) hash = { f : hash };\r
  98                 hash.time  = time;\r
  99                 hash.last  = time;\r
 100                 hash.count = opt_count;\r
 101                 hash.uid   = ++X_Timer_uid;\r
 102                 list[ list.length ] = hash;\r
 103                 \r
 104             !X_Timer_busyTimeout && X_Timer_update();\r
 105             return X_Timer_uid;\r
 106         },\r
 107         \r
 108         once : function( time, args1, args2, args3 ){\r
 109                 return X.Timer.add( time, 1, args1, args2, args3 );\r
 110         },\r
 111         \r
 112         remove : function( uid ){\r
 113                 var list = X_Timer_TICKET_LIST,\r
 114                         i    = list.length,\r
 115                         l    = i,\r
 116                         f, q;\r
 117                 // fire 中の cancel\r
 118                 if( X_Timer_busyTimeout ){\r
 119                         if( !X_Timer_removal ) X_Timer_removal = {};\r
 120                         X_Timer_removal[ uid ] = true;\r
 121                 } else {\r
 122                         for( ; i; ){\r
 123                                 if( ( q = list[ --i ] ).uid === uid ){\r
 124                                         list.splice( i, 1 );\r
 125                                         !X_Timer_skipUpdate && ( q.last <= X_Timer_waitTime || l === 1 ) && X_Timer_update();\r
 126                                         break;\r
 127                                 };\r
 128                         };                              \r
 129                 };\r
 130         },\r
 131         \r
 132         requestFrame : X_Timer_REQ_ANIME_FRAME ?\r
 133                 (function( args1, args2, args3 ){\r
 134                         var i = X_Timer_REQ_FRAME_LIST.length,\r
 135                                 f;\r
 136                         i === 0 && ( X_Timer_requestID = X_Timer_REQ_ANIME_FRAME( X_Timer_onEnterFrame ) );\r
 137                         f = X_Timer_REQ_FRAME_LIST[ i ] = X_Callback_classifyCallbackArgs( args1, args2, args3 );\r
 138                         return f.uid = ++X_Timer_uid;\r
 139                 }) :\r
 140                 (function( args1, args2, args3 ){\r
 141                         var i = X_Timer_REQ_FRAME_LIST.length,\r
 142                                 f;\r
 143                         i === 0 && ( X_Timer_requestID = X.Timer.add( 0, 1, X_Timer_onEnterFrame ) );\r
 144                         f = X_Timer_REQ_FRAME_LIST[ i ] = X_Callback_classifyCallbackArgs( args1, args2, args3 );\r
 145                         return f.uid = ++X_Timer_uid;\r
 146                 }),\r
 147         \r
 148         cancelFrame : X_Timer_CANCEL_ANIME_FRAME ?\r
 149                 (function( uid ){\r
 150                         var list = X_Timer_REQ_FRAME_LIST,\r
 151                                 l    = list.length,\r
 152                                 i    = l,\r
 153                                 f;\r
 154                         // fire 中の cancel\r
 155                         if( X_Timer_busyOnFrame ){\r
 156                                 if( !X_Timer_removal ) X_Timer_removal = {};\r
 157                                 X_Timer_removal[ uid ] = true;\r
 158                         } else {\r
 159                                 for( ; i; ){\r
 160                                         if( ( f = list[ --i ] ).uid < uid ) break;\r
 161                                         if( f.uid === uid ){\r
 162                                                 list.splice( i, 1 );\r
 163                                                 l === 1 && X_Timer_CANCEL_ANIME_FRAME( X_Timer_requestID );\r
 164                                                 break;\r
 165                                         };\r
 166                                 };                              \r
 167                         };\r
 168                 }) :\r
 169                 (function( uid ){\r
 170                         var list = X_Timer_REQ_FRAME_LIST,\r
 171                                 l    = list.length,\r
 172                                 i    = l,\r
 173                                 f;\r
 174                         // fire 中の cancel\r
 175                         if( X_Timer_busyOnFrame ){\r
 176                                 if( !X_Timer_removal ) X_Timer_removal = {};\r
 177                                 X_Timer_removal[ uid ] = true;\r
 178                         } else {\r
 179                                 for( ; i; ){\r
 180                                         if( ( f = list[ --i ] ).uid < uid ) break;\r
 181                                         if( f.uid === uid ){\r
 182                                                 list.splice( i, 1 );\r
 183                                                 l === 1 && X.Timer.remove( X_Timer_requestID );\r
 184                                                 break;\r
 185                                         };\r
 186                                 };\r
 187                         };\r
 188                 })\r
 189         \r
 190 };\r
 191 \r
 192 // ------------------------------------------------------------------------- //\r
 193 // --- implements ---------------------------------------------------------- //\r
 194 // ------------------------------------------------------------------------- //\r
 195 \r
 196 if( X_UA.IE4 || X_UA.MacIE ){\r
 197         X.Timer[ '_' ] = X_Timer_onTimeout;\r
 198         X_Timer_onTimeout = 'X.Timer._()';\r
 199 };\r
 200 \r
 201 function X_Timer_onTimeout(){\r
 202         var now   = X_Timer_now(),\r
 203                 minus = ( ( now - X_Timer_timeStamp ) / X_Timer_INTERVAL_TIME | 0 ) || 1,\r
 204                 list  = X_Timer_TICKET_LIST,\r
 205                 i     = 0,\r
 206                 l     = list.length,\r
 207                 limit = X_Timer_now() + X_Timer_INTERVAL_TIME / 2,\r
 208                 heavy,\r
 209                 q, f, c, r, uid;\r
 210         \r
 211         //console.log( '予定時間と発火時間の差:' + ( now - X_Timer_timeStamp - X_Timer_waitTime * X_Timer_INTERVAL_TIME ) + ' -:' + minus + ' next:' + X_Timer_waitTime );\r
 212         \r
 213         if( X_Timer_busyTimeout ){\r
 214                 alert( 'X_Timer_busyTimeout フラグが立ったまま!エラーの可能性' );\r
 215         };\r
 216         \r
 217         X_Timer_busyTimeout = true;\r
 218         \r
 219     for( ; i < l; ++i ){\r
 220         q = list[ i ];\r
 221         if(\r
 222                 ( X_Timer_removal && X_Timer_removal[ q.uid ] ) || // timerId は remove 登録されている\r
 223                         0 < ( q.last -= minus ) || // 時間が経過していない\r
 224                         heavy && ( q.last = 1 ) // 時間は経過したが、ヘビーフラグが立っている\r
 225                 ){\r
 226                         continue;\r
 227                 };\r
 228                 c = q.count;\r
 229                 \r
 230                 if( q.k ){\r
 231                         //q.a = [];\r
 232                         r = X_Callback_proxyCallback( q, [] );\r
 233                 } else {\r
 234                         r = q.f();\r
 235                 };\r
 236                 \r
 237                 //console.log( 'fire....' );\r
 238                 \r
 239                 if( limit <= X_Timer_now() ){\r
 240                         //console.log( '******* heavy!' );\r
 241                         // 関数の実行に時間がかかる場合、次のタイミングに\r
 242                         heavy = true;\r
 243                 };\r
 244                 \r
 245                 if( r & X_Callback_UN_LISTEN || c === 1 ){\r
 246                         list.splice( i, 1 );\r
 247                         --i;\r
 248                         --l;\r
 249                         continue;\r
 250                 } else\r
 251                 if( 1 < c ) --q.count;\r
 252                 q.last = q.time;\r
 253     };\r
 254     X_Timer_timerId     = 0;\r
 255     X_Timer_busyTimeout = false;\r
 256     \r
 257     if( X_Timer_removal ){\r
 258         X_Timer_skipUpdate = true;\r
 259         for( uid in X_Timer_removal ){\r
 260                 X.Timer.remove( uid );\r
 261         };\r
 262         X_Timer_skipUpdate = false;\r
 263         X_Timer_removal = null;\r
 264     };\r
 265     X_Timer_update();\r
 266 };\r
 267 \r
 268 function X_Timer_update(){\r
 269         var list = X_Timer_TICKET_LIST,\r
 270                 i    = list.length,\r
 271                 n;\r
 272         if( i === 0 ){\r
 273                 X_Timer_timerId && X_Timer_CLEAR_TIMEOUT( X_Timer_timerId );\r
 274                 X_Timer_timerId = 0;\r
 275                 return;\r
 276         };\r
 277         \r
 278         1 < i && list.sort( X_Timer_compareQueue );\r
 279         \r
 280     n = list[ i - 1 ].last;\r
 281     \r
 282     if( n < X_Timer_waitTime || X_Timer_timerId === 0 ){\r
 283         if( X_Timer_timerId ){\r
 284                 X_Timer_CLEAR_TIMEOUT( X_Timer_timerId );\r
 285                 n -= ( X_Timer_now() - X_Timer_timeStamp ) / X_Timer_INTERVAL_TIME | 0;\r
 286                 0 <= n || ( n = 0 ); // 負の数は 0 に\r
 287         };\r
 288         X_Timer_timeStamp = X_Timer_now();\r
 289         X_Timer_timerId   = X_Timer_SET_TIMEOUT( X_Timer_onTimeout, X_Timer_INTERVAL_TIME * n );\r
 290         X_Timer_waitTime  = n;\r
 291     };\r
 292 };\r
 293 \r
 294 // 大きい -> 小さい\r
 295 function X_Timer_compareQueue( a, b ){\r
 296         return a.last < b.last ? 1 : a.last === b.last ? 0 : -1;\r
 297 };\r
 298 \r
 299 // http://havelog.ayumusato.com/develop/javascript/e528-ios6_scrolling_timer_notcall.html\r
 300 // iOS6 スクロール中のタイマー発火絡みのバグ備忘\r
 301 if( X_UA.iOS ){\r
 302         window.addEventListener( 'scroll', function(){\r
 303                 var last, now;\r
 304                 if( X_Timer_timerId ){\r
 305                         X_Timer_CLEAR_TIMEOUT( X_Timer_timerId );\r
 306                         now  = X_Timer_now();\r
 307                         last = X_Timer_timeStamp + X_Timer_INTERVAL_TIME * X_Timer_waitTime - now;\r
 308                         X_Timer_timerId = X_Timer_SET_TIMEOUT( X_Timer_onTimeout, 0 < last ? last : 0 );\r
 309                         // 更新\r
 310                         X_Timer_timeStamp = now;\r
 311                         X_Timer_waitTime  = last / X_Timer_INTERVAL_TIME | 0;\r
 312                 };\r
 313         });\r
 314 };\r
 315 \r
 316 \r
 317 // ページを読み込んでからの時間\r
 318 function X_Timer_onEnterFrame( time ){\r
 319         var list = X_Timer_REQ_FRAME_LIST,\r
 320                 l    = list.length,\r
 321                 i    = 0, q, uid, args;\r
 322 \r
 323         time = time || X_Timer_now();\r
 324         X_Timer_busyOnFrame = true;\r
 325         // console.log( X_Timer_now() + ' , ' + time );\r
 326     for( ; i < l; ++i ){\r
 327         q = list[ i ];\r
 328         \r
 329         if( X_Timer_removal && X_Timer_removal[ q.uid ] ) continue;\r
 330         \r
 331                 if( q.k ){\r
 332                         X_Callback_proxyCallback( q, args || ( args = [ time ] ) );\r
 333                 } else {\r
 334                         q( time );\r
 335                 };\r
 336     };\r
 337 \r
 338     list.splice( 0, l );\r
 339     if( list.length ){\r
 340         X_Timer_requestID = X_Timer_REQ_ANIME_FRAME ? X_Timer_REQ_ANIME_FRAME( X_Timer_onEnterFrame ) : X.Timer.add( 0, 1, X_Timer_onEnterFrame );\r
 341     };\r
 342     \r
 343     X_Timer_busyOnFrame = false;\r
 344     if( X_Timer_removal ){\r
 345         for( uid in X_Timer_removal ){\r
 346                 X.Timer.cancelFrame( X_Timer_removal[ uid ] );\r
 347         };\r
 348         X_Timer_removal = null;\r
 349     };\r
 350 };\r
 351 \r
 352 console.log( 'X.Core.Timer' );\r