0.6.x/js/01_core/21_XViewPort.js

   1
   2 var X_ViewPort_readyState,
   3         X_ViewPort_active = !!window.parent || !!document.activeElement, // parent は frameに読み込まれた場合のieのerror回避
   4         X_ViewPort_activeTimerID,
   5         X_ViewPort_rootElement,
   6         X_ViewPort_lock,
   7         X_ViewPort_width,
   8         X_ViewPort_height,
   9         X_ViewPort_scrollX = 0,
  10         X_ViewPort_scrollY = 0,
  11         X_ViewPort_baseFontSize,
  12         X_ViewPort_vScrollbarSize,
  13         X_ViewPort_hScrollbarSize,
  14
  15         X_ViewPort_useDetectionLoop = X_UA[ 'IE' ] < 9 || X_UA[ 'iOS' ],
  16         X_ViewPort_detectFontSize = !X_ViewPort_useDetectionLoop && function(){
  17                         var size = X_Node_fontSizeNode[ '_rawObject' ].offsetHeight;
  18                         if( X_ViewPort_baseFontSize !== size ){
  19                                 X_ViewPort_baseFontSize = size;
  20                                 X_ViewPort_baseFontSize && X_ViewPort[ 'asyncDispatch' ]( X_EVENT_BASE_FONT_RESIZED );
  21                         };
  22         },
  23
  24         X_ViewPort_orientationFlag,
  25         X_ViewPort_orientationchange = window[ 'orientation' ] !== undefined && function( e ){
  26                 X_ViewPort_orientationFlag = true;
  27                 !X_UA[ 'Android' ] && X_ViewPort_resize();
  28                 //console.log( '-- orientationchange : ' + X[ 'ViewPort' ][ 'getSize' ][ 0 ] + ' ' + X[ 'ViewPort' ][ 'getSize' ][ 1 ] );
  29         },
  30
  31         X_ViewPort_document = X_EventDispatcher( document ),
  32
  33 X_ViewPort = X_Class_override(
  34         X_EventDispatcher( window ),
  35         {
  36
  37                 'handleEvent' : function( e ){
  38                         var href, i, name, active = false;
  39
  40                         switch( e.type ){
  41                                 case 'beforeunload' :
  42                                         // ie では　a href='javascript' な要素でも beforeunload が起こる
  43                                         href = e.target && e.target[ 'attr' ] && e.target[ 'attr' ]( 'href' );
  44                                         if( href && href.indexOf && href.indexOf( 'javascript:' ) === 0 ) return X_Callback_PREVENT_DEFAULT | X_Callback_STOP_PROPAGATION;
  45
  46                                         return X_ViewPort[ 'dispatch' ]( X_EVENT_BEFORE_UNLOAD );
  47
  48                                 case 'unload' :
  49                                         //https://developer.mozilla.org/ja/docs/Web/JavaScript/A_re-introduction_to_JavaScript
  50                                         //Firefox 1.5 の bfcache が無効になりますので、他に理由がない限り Firefox では unload リスナを登録するべきではないことに注意してください。
  51                                         X_ViewPort[ 'dispatch' ]( X_EVENT_UNLOAD );
  52                                 //alert('unload');
  53                                         X_ViewPort_document[ 'kill' ]();
  54                                         this[ 'kill' ]();
  55
  56                                         //X_System[ 'dispatch' ]( X_EVENT_SHUT_DOWN );
  57                                         break;
  58
  59                                 case 'visibilitychange' :
  60                                         X_ViewPort[ 'dispatch' ]( ( X_ViewPort_active = document[ 'hidden' ] ) ? X_EVENT_VIEW_DEACTIVATE : X_EVENT_VIEW_ACTIVATE );
  61                                         break;
  62                                 case 'mozvisibilitychange' :
  63                                         X_ViewPort[ 'dispatch' ]( ( X_ViewPort_active = document[ 'mozHidden' ] ) ? X_EVENT_VIEW_DEACTIVATE : X_EVENT_VIEW_ACTIVATE );
  64                                         break;
  65                                 case 'webkitvisibilitychange' :
  66                                         X_ViewPort[ 'dispatch' ]( ( X_ViewPort_active = document[ 'webkitHidden' ] ) ? X_EVENT_VIEW_DEACTIVATE : X_EVENT_VIEW_ACTIVATE );
  67                                         break;
  68
  69
  70                                 case 'blur' :
  71                                 case 'focusout' :
  72                                 case 'pagehide' :
  73                                         active = true;
  74                                 case 'focus' :
  75                                 case 'focusin' :
  76                                 case 'pageshow' :
  77                                         if( X_ViewPort_active === active ){
  78                                                 X_ViewPort_active = !active;
  79                                                 if( X_ViewPort_activeTimerID ){
  80                                                         X_ViewPort_activeTimerID = X_Timer_remove( X_ViewPort_activeTimerID );
  81                                                 } else {
  82                                                         X_ViewPort_activeTimerID = X_Timer_once( 1, X_ViewPort_changeFocus );
  83                                                 };
  84                                         };
  85                                         break;
  86                         };
  87                 }
  88
  89         }
  90 );
  91
  92 function X_ViewPort_changeFocus(){
  93         X_ViewPort[ 'dispatch' ]( X_ViewPort_active ? X_EVENT_VIEW_ACTIVATE : X_EVENT_VIEW_DEACTIVATE );
  94         X_ViewPort_activeTimerID = 0;
  95 };
  96
  97
  98 /**
  99  * window に相当する ViewPort 情報を提供するオブジェクト。
 100  * @namespace X.ViewPort
 101  * @alias X.ViewPort
 102  */
 103 X[ 'ViewPort' ] = {
 104
 105         'listen' : function( type, arg1, arg2, arg3 ){
 106                 if( type <= X_ViewPort_readyState ){
 107                         /*
 108                          * X_EVENT_XDOM_READY 以後に listen した場合の対策
 109                          */
 110                         X_ViewPort[ 'asyncDispatch' ]( type );
 111                 };
 112                 // ie8-では keydown -> documentへ
 113                 type && arg1 && X_ViewPort[ 'listen' ]( type, arg1, arg2, arg3 );
 114                 return X[ 'ViewPort' ];
 115         },
 116
 117
 118         'listenOnce' : function( type, arg1, arg2, arg3 ){
 119                 if( type <= X_ViewPort_readyState ){
 120                         /*
 121                          * X.Event.XDOM_READY 以後に listen した場合の対策
 122                          */
 123                         X_ViewPort[ 'asyncDispatch' ]( type );
 124                 };
 125                 type && arg1 && X_ViewPort[ 'listenOnce' ]( type, arg1, arg2, arg3 );
 126                 return X[ 'ViewPort' ];
 127         },
 128
 129         'unlisten' : function( type, arg1, arg2, arg3 ){
 130                 type && arg1 && X_ViewPort[ 'unlisten' ]( type, arg1, arg2, arg3 );
 131                 return X[ 'ViewPort' ];
 132         },
 133
 134         'listening' : function( type, arg1, arg2, arg3 ){
 135                 return X_ViewPort[ 'listening' ]( type, arg1, arg2, arg3 );
 136         },
 137
 138         // hammer のテストファイルだけが使用
 139         'asyncDispatch' : function(){
 140                 return X_ViewPort[ 'asyncDispatch' ].apply( X_ViewPort, arguments );
 141         },
 142
 143         'getPointerPosition' : function(){
 144
 145         },
 146
 147         /* 要素が視界に入った  http://remysharp.com/2009/01/26/element-in-view-event-plugin/
 148          * TODO -> Node.call('inView')
 149          */
 150         'inView' : function( elm ){
 151
 152         },
 153
 154         'getSize' : function(){
 155                 return [ X_ViewPort_width, X_ViewPort_height ];
 156         },
 157 //https://developer.mozilla.org/en-US/docs/Web/API/Element.getBoundingClientRect
 158 //use window.pageXOffset and window.pageYOffset instead of window.scrollX and window.scrollY
 159 //(((t = document.documentElement) || (t = document.body.parentNode)) && typeof t.ScrollLeft == 'number' ? t : document.body).ScrollLeft;
 160 //(((t = document.documentElement) || (t = document.body.parentNode)) && typeof t.ScrollTop == 'number' ? t : document.body).ScrollTop
 161
 162         'getDocumentSize' : function(){
 163                 // Opera は互換モードでは document.body.scrollHeight、標準モードでは document.documentElement.scrollHeight でページの高さが取れる。と思ってたんだけど、例外があった。
 164                 // http://orera.g.hatena.ne.jp/edvakf/20100515/1273908051
 165         //http://onozaty.hatenablog.com/entry/20060803/p1
 166         // Safari2.0.4では標準・互換どちらも document.body
 167
 168                 X_Node_updateTimerID && X_Node_startUpdate();
 169                 /*X_UA[ 'Opera' ] ?
 170                         ( document.documentElement && document.documentElement.clientWidth ?
 171                                 new Function( 'return[document.documentElement.clientWidth,document.documentElement.clientHeight]' ) :
 172                                 new Function( 'return[document.body.clientWidth,document.body.clientHeight]' )
 173                         ) :*/
 174                 return [
 175                         X_ViewPort_rootElement.scrollWidth  || X_ViewPort_rootElement.offsetWidth,
 176                         X_ViewPort_rootElement.scrollHeight || X_ViewPort_rootElement.offsetHeight
 177                 ];
 178         },
 179
 180         'getScrollPosition' :
 181                 window.pageXOffset !== undefined ?
 182                         ( function(){
 183                                 X_Node_updateTimerID && X_Node_startUpdate();
 184                                 return[ X_ViewPort_scrollX = window.pageXOffset, X_ViewPort_scrollY = window.pageYOffset ];
 185                         } ) :
 186                 window.scrollLeft  !== undefined ?
 187                         ( function(){
 188                                 X_Node_updateTimerID && X_Node_startUpdate();
 189                                 return[ X_ViewPort_scrollX = window.scrollLeft, X_ViewPort_scrollY = window.scrollTop ];
 190                         } ) :
 191                         ( function(){
 192                                 X_Node_updateTimerID && X_Node_startUpdate();
 193                                 // body は Safari2-
 194                                 return[ X_ViewPort_scrollX = X_ViewPort_rootElement.scrollLeft || document.body.scrollLeft, X_ViewPort_scrollY = X_ViewPort_rootElement.scrollTop || document.body.scrollTop ];
 195                         } ),
 196
 197         'getScrollbarSize' : function(){
 198                 return [ X_ViewPort_vScrollbarSize, X_ViewPort_hScrollbarSize ];
 199         },
 200
 201         'getBaseFontSize' : function(){
 202                 if( X_Node_updateTimerID ){
 203                         X_Node_startUpdate();
 204                         return X_ViewPort_baseFontSize = X_Node_fontSizeNode[ '_rawObject' ].offsetHeight;
 205                 };
 206                 return X_ViewPort_baseFontSize;
 207         }
 208
 209 };
 210
 211
 212
 213 /* -----------------------------------------------
 214  * Resize
 215  *  original : uupaa.js
 216  *
 217  * TODO
 218  *  https://w3g.jp/blog/studies/ios7_1_minimal-ui_warning
 219  *  iOS7.0からあったiPad Safariの高さ100%コンテンツでlandscape（横向き）時に起きる不具合
 220  *
 221  * http://looxu.blogspot.jp/2013/11/ios7mobile-safariwindowinnerheight.html
 222  * iOS7にて、Mobile Safariのwindow.innerHeightを正しく取得する方法
 223  *
 224  *  http://tenderfeel.xsrv.jp/javascript/1182/
 225  *  アドレスバーの高さの算出
 226  *
 227  * http://sssslide.com/www.slideshare.net/hiroakiwakamatsu/javascript-14514208
 228  * 1. 傾き時の画面サイズ取得ー 対処方法の例
 229  * (1)ー? タイマーを使って、画面サイズ取得の タイミングを少しだけ遅延させる
 230  * window.onorientationchange = function() { setTimeout(function() { alert('W: ' + window.innerWidth + ', H: ' + window.innerHeight); }, 200); }
 231  * 横に傾けた時、正常に横向け時の 幅と高さが取得できている ただし、端末によってはうまく取得できな い場合がある(Galaxy S IIIとか・・・) 7
 232  *
 233  * http://sssslide.com/www.slideshare.net/hiroakiwakamatsu/ss-12718639
 234  *
 235  *
 236  * getBoundingClientRect で　fontsize の調査
 237  */
 238                 var X_ViewPort_resize =
 239                         // iOS もループで回す,,,iOS3.1.3, iOS6 で確認
 240                         X_ViewPort_useDetectionLoop ?
 241                                 (function(){
 242                                         var size;
 243                                         if( !X_ViewPort_lock ){
 244                                                 size = X_ViewPort_getWindowSize();
 245                                                 if( X_ViewPort_width !== size[ 0 ] || X_ViewPort_height !== size[ 1 ] ){
 246                                                         X_ViewPort_width = size[ 0 ];
 247                                                         X_ViewPort_height = size[ 1 ];
 248                                                         X_Timer_once( 100, X_ViewPort_detectFinishResizing );
 249                                                         X_ViewPort_lock = true;
 250                                                 };
 251                                         };
 252
 253                                         size = X_Node_fontSizeNode[ '_rawObject' ].offsetHeight;
 254                                         if( X_ViewPort_baseFontSize !== size ){
 255                                                 X_ViewPort_baseFontSize && X_ViewPort[ 'asyncDispatch' ]( X_EVENT_BASE_FONT_RESIZED );
 256                                                 X_ViewPort_baseFontSize = size;
 257                                         };
 258
 259                                 }) :
 260                                 (function( e ){
 261                                         console.log( '-- resize : ' + X_Timer_now() );
 262
 263                                         !X_ViewPort_lock && ( X_ViewPort_lock = true ) && X_Timer_once( 100, X_ViewPort_detectFinishResizing );
 264                                         return X_Callback_PREVENT_DEFAULT | X_Callback_STOP_PROPAGATION;
 265                                 });
 266
 267                 function X_ViewPort_detectFinishResizing(){
 268                         var size = X_ViewPort_getWindowSize();
 269                         if( X_ViewPort_width !== size[ 0 ] || X_ViewPort_height !== size[ 1 ] ){
 270                                 X_ViewPort_width  = size[ 0 ];
 271                                 X_ViewPort_height = size[ 1 ];
 272                                 X_Timer_once( 100, X_ViewPort_detectFinishResizing );
 273                         } else {
 274                                 console.log( '-- detectFinishResizing : ' + X_Timer_now() );
 275
 276                                 X_ViewPort[ 'asyncDispatch' ]( X_EVENT_VIEW_RESIZED );
 277                                 X_ViewPort_lock = false;
 278                                 if( X_ViewPort_orientationFlag ){
 279                                         X_ViewPort_orientationFlag = false;
 280                                         X_ViewPort[ 'asyncDispatch' ]( 100, { type : X_EVENT_VIEW_TURNED, 'orientation' : window.orientation } );
 281                                 };
 282                         };
 283                 };
 284
 285                 X_TEMP.onDomContentLoaded = function(){
 286                         var s, size, elmHtml, elmHead, elmBody, html, head, body;
 287
 288                         console.log( '> X_TEMP.onDomContentLoaded rs:' + X_ViewPort_readyState );
 289
 290                         if( X_EVENT_PRE_INIT <= X_ViewPort_readyState ) return X_Callback_UN_LISTEN;
 291                         X_ViewPort_readyState = X_EVENT_PRE_INIT;
 292
 293                         // DOMContentLoaded の無いブラウザで X_TEMP.onDomContentLoaded への参照が残り続けるのを回避
 294                         X_TEMP.onDomContentLoaded && X_ViewPort_document[ 'unlisten' ]( 'DOMContentLoaded', X_TEMP.onDomContentLoaded );
 295                         delete X_TEMP.onDomContentLoaded;
 296
 297                         elmHtml = document.documentElement ||
 298                                 X_UA_DOM.W3C ? document.getElementsByTagName( 'html' )[ 0 ] :
 299                                 X_UA_DOM.IE4 ? document.all.tags( 'html' )[ 0 ] : null;
 300
 301                         elmHead =
 302                                 X_UA_DOM.W3C ? document.getElementsByTagName( 'head' )[ 0 ] :
 303                                 X_UA_DOM.IE4 ? document.all.tags( 'head' )[ 0 ] : null;
 304
 305                         elmBody = document.body;
 306
 307                         X_ViewPort_rootElement = document.compatMode !== 'CSS1Compat' ? elmBody : elmHtml || elmBody;
 308
 309         /**
 310          * Node( documentElement )
 311          * @alias X.Doc.html
 312          * @type {Node}
 313          */
 314                         X[ 'Doc' ][ 'html' ] = html = X_Node_html = elmHtml && Node( elmHtml )[ 'removeClass' ]( 'js-disabled' )[ 'addClass' ]( X_UA_classNameForHTML );
 315                         html[ '_flags' ] |= X_NodeFlags_IN_TREE;
 316
 317         /**
 318          * Node( head )
 319          * @alias X.Doc.head
 320          * @type {Node}
 321          */
 322                         X[ 'Doc' ][ 'head' ] = head = X_Node_head = elmHead && Node( elmHead );
 323
 324         /**
 325          * Node( documentElement )
 326          * @alias X.Doc.body
 327          * @type {Node}
 328          */
 329                         X[ 'Doc' ][ 'body' ] = body = X_Node_body = Node( elmBody );
 330
 331                         body[ 'parent ' ] = head[ 'parent' ] = html;
 332                         html[ '_xnodes' ] = [ head, body ];
 333
 334                         html[ 'appendTo' ] = html[ 'prev' ] = html[ 'next' ] = html[ 'clone' ] = html[ 'remove' ] = html[ 'kill' ] =
 335                         html[ 'create' ] = html[ 'createText' ] = html[ 'createAt' ] = html[ 'createTextAt' ] = html[ 'append' ] = html[ 'appendAt' ] = html[ 'empty' ] = html[ 'html' ] = html[ 'text' ] =
 336                         html[ 'css' ] = html[ 'cssText' ] =
 337                         head[ 'appendTo' ] = head[ 'prev' ] = head[ 'next' ] = head[ 'clone' ] = head[ 'remove' ] = head[ 'kill' ] =
 338                         head[ 'createText' ] = head[ 'createTextAt' ] = head[ 'empty' ] = head[ 'html' ] = head[ 'text' ] = head[ 'css' ] = head[ 'cssText' ] =
 339                         body[ 'appendTo' ] = body[ 'prev' ] = body[ 'next' ] = body[ 'clone' ] = body[ 'remove' ] = body[ 'kill' ] = new Function( 'return this' );
 340
 341                         X_ViewPort[ 'listenOnce' ]( X_EVENT_PRE_INIT, function(){
 342                                 X_ViewPort_readyState = X_EVENT_XTREE_READY;
 343                                 if( X_TEMP.X_Dom_useBuilder ) X_TEMP.X_Dom_useBuilder = !!document.body.children.length;
 344                                 !X_TEMP.X_Dom_useBuilder && X_ViewPort[ 'asyncDispatch' ]( X_EVENT_XTREE_READY );
 345                         } );
 346
 347                         X_ViewPort[ 'listenOnce' ]( X_EVENT_XTREE_READY, function(){
 348                                 X_ViewPort_readyState = X_EVENT_INIT;
 349                                 //X_UA[ 'Opera7' ] && alert( 'bc' );
 350                                 X_Node_body[ 'appendAt' ]( 0,
 351                                         X_Node_systemNode = X_Doc_create( 'div', { 'class' : 'hidden-system-node' } ),
 352                                         X_Node_fontSizeNode = X_Doc_create( 'div', { 'class' : 'hidden-system-node' } )[ 'cssText' ]( 'line-height:1;height:1em;' )[ 'text' ]( 'X' )
 353                                 );
 354                                 X_Node_startUpdate();
 355
 356                                 X_ViewPort[ 'asyncDispatch' ]( X_EVENT_INIT );
 357                         } );
 358
 359                         X_ViewPort[ 'listenOnce' ]( X_EVENT_INIT, function(){
 360                                 var size = X_ViewPort_getWindowSize(),
 361
 362                                 // http://jsdo.it/imaya/kTYg
 363                                         body = document.body,
 364                                         defaultOverflow = document.body.style.overflow,
 365                                         w, h;
 366
 367                                 X_ViewPort_width  = size[ 0 ];
 368                                 X_ViewPort_height = size[ 1 ];
 369
 370                                 body.style.overflow = 'hidden';
 371                                 w = body.clientWidth;
 372                                 h = body.clientHeight;
 373
 374                                 body.style.overflow = 'scroll';
 375                                 w -= body.clientWidth;
 376                                 h -= body.clientHeight;
 377
 378                                 if( !w ) w = body.offsetWidth  - body.clientWidth;
 379                                 if( !h ) h = body.offsetHeight - body.clientHeight;
 380                                 body.style.overflow = defaultOverflow;
 381
 382                                 X_ViewPort_vScrollbarSize = w;
 383                                 X_ViewPort_hScrollbarSize = h;
 384                                 if( h <= 0 ){ // ie6, ie11, firefox で　負の値が返る
 385                                         console.log( 'invalid hScrollbarSize: ' + h );
 386                                         X_ViewPort_hScrollbarSize = w;
 387                                 };
 388
 389                                 //
 390                                 if( X_ViewPort_orientationchange ){
 391                                         X_EventDispatcher_systemListen( X_ViewPort, 'orientationchange', X_ViewPort_orientationchange );
 392                                 };
 393
 394                                 if( X_ViewPort_detectFontSize ){
 395                                         X_EventDispatcher_systemListen( X_ViewPort, 'resize', X_ViewPort_resize );
 396                                         X_Timer_add( 333, X_ViewPort_detectFontSize );
 397                                 } else {
 398                                         X_Timer_add( 333, X_ViewPort_resize );
 399                                 };
 400
 401                                 X_ViewPort_baseFontSize = X_Node_fontSizeNode[ '_rawObject' ].offsetHeight;
 402
 403                                 X_ViewPort[ 'asyncDispatch' ]( X_ViewPort_readyState = X_EVENT_XDOM_READY );
 404                         } );
 405
 406                         X_ViewPort[ 'asyncDispatch' ]( X_EVENT_PRE_INIT );
 407
 408
 409                         X_EventDispatcher_systemListen( X_ViewPort, [ 'beforeunload', 'unload' ] );
 410
 411 //ブラウザの戻るボタンで戻ったときに呼ばれるイベントとかキャッシュとかそこらへんのこと
 412 //http://d.hatena.ne.jp/koumiya/20080916/1221580149
 413
 414                         if( document[ 'hidden' ] !== undefined ){// iOS 7+
 415                                 X_EventDispatcher_systemListen( X_ViewPort_document, 'visibilitychange', X_ViewPort );
 416                         } else
 417                         if( document[ 'mozHidden' ] !== undefined ){
 418                                 X_EventDispatcher_systemListen( X_ViewPort_document, 'mozvisibilitychange', X_ViewPort );
 419                         } else
 420                         if( document[ 'webkitHidden' ] !== undefined ){
 421                                 X_EventDispatcher_systemListen( X_ViewPort_document, 'webkitvisibilitychange', X_ViewPort );
 422                         } else
 423                         if( X_UA[ 'iOS' ] && window[ 'onpageshow' ] !== undefined ){
 424                                 X_EventDispatcher_systemListen( X_ViewPort, [ 'pageshow', 'pagehide' ] );
 425                         } else
 426                         if( document[ 'onfocusin' ] !== undefined ){
 427                                 // https://github.com/ai/visibilityjs/blob/master/lib/visibility.fallback.js
 428                                 X_EventDispatcher_systemListen( X_ViewPort_document, [ 'focusin', 'focusout' ], X_ViewPort );
 429                         } else {
 430                                 X_EventDispatcher_systemListen( X_ViewPort, [ 'focus', 'blur' ] );
 431                         };
 432
 433                         return X_Callback_UN_LISTEN;
 434                 };
 435
 436                 function X_ViewPort_getWindowSize(){
 437                         return X_UA[ 'IE' ] ? // Opera10.1 では ズーム時に表示領域のサイズが取れない！
 438                                 [ X_ViewPort_rootElement.clientWidth, X_ViewPort_rootElement.clientHeight ] :
 439                                 X_UA[ 'Opera' ] < 12 ? // Opera10.1 では ズーム + resize 時に表示領域のサイズが取れない！
 440                                 [ X_ViewPort_rootElement.offsetWidth, X_ViewPort_rootElement.offsetHeight ] :
 441                                 [ window.innerWidth, window.innerHeight ];
 442                 };
 443
 444
 445 console.log( 'X.Dom dom:w3c=' + X_UA_DOM.W3C + ' ev:w3c=' + X_UA_EVENT.W3C );
 446
 447 /* -----------------------------------------------
 448  * Document Ready
 449  *  Dean Edwards/Matthias Miller/John Resig
 450  */
 451
 452 // SafariでJavaScriptのデバッグをする方法
 453 // safari1.3 可
 454 // http://shimax.cocolog-nifty.com/search/2006/09/safarijavascrip_c54d.html
 455
 456 /* for ie9+/Mozilla/Opera9 */
 457 if( X_UA_EVENT.W3C ){
 458         X_ViewPort_document[ 'listenOnce' ]( 'DOMContentLoaded', X_TEMP.onDomContentLoaded );
 459 } else
 460 if( 6 <= X_UA[ 'IE' ] && X[ 'inHead' ] ){
 461         // if this script in Head
 462         //document.write( '<script id="__ie_onload" defer src="javascript:void(0)"></script>' );
 463         //X_TEMP._script = document.getElementById( '__ie_onload' );
 464
 465         // 上のコードはスタンドアローン版ie6でエラー
 466     X_TEMP._script = document.createElement( '<script id="__ie_onload" defer src="javascript:void(0)"></script>' ) ;
 467     document.getElementsByTagName("head")[ 0 ].appendChild( X_TEMP._script );
 468
 469         X_TEMP._script.onreadystatechange = function(){
 470                 var s = X_TEMP._script;
 471                 if( s && s.readyState === 'complete' ){
 472                         s.onreadystatechange = X_emptyFunction;
 473                         s.onreadystatechange = null;
 474                         s.parentNode.removeChild( s );
 475                         delete X_TEMP._script;
 476                         X_TEMP.onDomContentLoaded && X_TEMP.onDomContentLoaded();
 477                 };
 478         };
 479 };
 480 // Re: onLoad doesn't work with Safari?
 481 // http://lists.apple.com/archives/web-dev/2003/Oct/msg00036.html
 482 if( X_UA[ 'WebKit' ] || X_UA[ 'Safari' ]  < 3 ){ // sniff
 483         X_Timer_add( 16, function(){
 484                 if( !X_TEMP.onDomContentLoaded ) return X_Callback_UN_LISTEN;
 485                 if( document.readyState === 'loaded' || document.readyState === 'complete' ) return X_TEMP.onDomContentLoaded();
 486         });
 487 };
 488
 489 /* for other browsers */
 490 X_ViewPort[ 'listenOnce' ]( 'load', X_TEMP.onDomContentLoaded );