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