0.6.x/js/05_util/01_XNinjaIframe.js

   1 /**\r
   2  * http://msdn.microsoft.com/ja-jp/library/ie/hh180174%28v=vs.85%29.aspx\r
   3  * 孤立するとウィンドウ オブジェクトのプロパティが消去される\r
   4  * \r
   5  * http://qiita.com/sou/items/3380d4fa9b08b27bb387\r
   6  * モバイルブラウザでの iframe の挙動（Mobile Safari, Chrome for Android)\r
   7  * \r
   8  * @alias X.Util.NinjaIframe\r
   9  * @class NinjaIframe 隠し iframe 機能を提供します。\r
  10  * @extends {Node}\r
  11  */\r
  12 var X_NinjaIframe = X[ 'Util' ][ 'NinjaIframe' ] = Node[ 'inherits' ](\r
  13         'NinjaIframe',\r
  14         \r
  15         /** @lends NinjaIframe.prototype */\r
  16         {\r
  17                 /* autoRefresh  : 0, */\r
  18                 \r
  19                 /**\r
  20                  * iframe の contentWindow\r
  21                  * @private\r
  22                  * @type {window} */\r
  23                 _iwin        : null,\r
  24                 \r
  25                 /**\r
  26                  * iframe に write する html 文字時列\r
  27                  * @type {string} */\r
  28                 _contentHTML : '',\r
  29                 \r
  30                 /**\r
  31                  * iframe の name\r
  32                  * @private\r
  33                  * @type {string} */\r
  34                 _name        : '',\r
  35                 \r
  36                 /**\r
  37                  * iframe への　html 文字列の write が完了した\r
  38                  * @private\r
  39                  * @type {string} */\r
  40                 _ready       : false,\r
  41                 \r
  42                 'Constructor' : function( html ){\r
  43                         // TODO src も設定可能に\r
  44                         \r
  45                         this._name = 'hidden-iframe-' + X_Timer_now();\r
  46                         // https://github.com/polygonplanet/Pot.js/blob/master/src/Worker.js\r
  47 \r
  48                         X_Node_newByTag = true;\r
  49 \r
  50                         this[ 'Super' ](\r
  51                                 'IFRAME',\r
  52                                 {\r
  53                                         className         : 'hidden-iframe',\r
  54                                         scrolling         : 'no',\r
  55                                         allowtransparency : 'no',                                       \r
  56                                         frameborder       : 0,\r
  57                                         tabindex          : -1,\r
  58                                         name              : this._name,\r
  59                                         id                : this._name\r
  60                                 }\r
  61                         );\r
  62                         \r
  63                         // http://nanto.asablo.jp/blog/2011/12/08/6237308\r
  64                         // IE 6/7 で文書間通信を実現するための一案\r
  65                         if( X_UA[ 'IE' ] < 9 ){\r
  66                                 this[ 'attr' ]( 'src', 'about:blank' );\r
  67                         };\r
  68                         // Safari 2.0.* bug: iframe's absolute position and src set.\r
  69                         if( !X_UA[ 'Webkit' ]  ){\r
  70                                 this[ 'css' ]( { position : 'absolute' } );\r
  71                         };\r
  72                         \r
  73                         if( html ) this._contentHTML = html;                    \r
  74                         \r
  75                         this[ 'appendTo' ]( X_Node_systemNode )\r
  76                                 [ 'listenOnce' ]( X_EVENT_KILL_INSTANCE, X_Util_NinjaIframe_handleEvent );\r
  77                         \r
  78                         X_ViewPort[ 'listenOnce' ]( X_EVENT_AFTER_UPDATE, this, X_Util_NinjaIframe_handleEvent );\r
  79                 },\r
  80                 \r
  81                 /**\r
  82                  * iframe 内をリフレッシュ、または内容を上書きする\r
  83                  * @param {string=} opt_contentHTML html文字列\r
  84                  * @return {NinjaIframe} チェーンメソッド\r
  85                  */\r
  86                 'refresh' : function( opt_contentHTML ){\r
  87                         var raw = this[ '_rawObject' ],\r
  88                                 idoc;\r
  89                                 \r
  90                         this._ready = false;\r
  91                         \r
  92                         if( !this._iwin ){\r
  93                                 this._contentHTML = opt_contentHTML;\r
  94                                 return this;\r
  95                         };\r
  96                         \r
  97                         if( X_UA[ 'IE5x' ] ){\r
  98                                 this._iwin.location.href = 'about:blank'; // reload() では、IE5.5(IETester)で2回目移行の操作でerrorが出る(doc取得やopen,writeで)\r
  99                         } else {\r
 100                                 this._iwin.location.reload();\r
 101                         };\r
 102                         \r
 103                         if( !X_Type_isString( opt_contentHTML ) ) return this;\r
 104                         \r
 105                         this._contentHTML = opt_contentHTML;\r
 106 \r
 107                         if( !( X_UA[ 'IE' ] < 9 ) ){\r
 108                                 X_Util_NinjaIframe_writeToIframe( this );\r
 109                         };\r
 110                         \r
 111                         return this;\r
 112                 }\r
 113                 \r
 114         }\r
 115 );\r
 116 \r
 117 \r
 118 function X_Util_NinjaIframe_handleEvent( e ){\r
 119         var raw = this[ '_rawObject' ];\r
 120         \r
 121         switch( e.type ){\r
 122                 case X_EVENT_AFTER_UPDATE :\r
 123                         this._iwin = raw.contentWindow || ( raw.contentDocument && raw.contentDocument.parentWindow ) || window.frames[ this._name ];\r
 124                         // http://d.hatena.ne.jp/NeoCat/20080921/1221940658\r
 125                         // こちらに名前をsetしないとtargetが動作しない\r
 126                         if( X_UA[ 'IE' ] ) this._iwin.name = this._name;\r
 127                         \r
 128                         this[ 'listen' ]( X_UA[ 'IE' ] < 9 ? 'readystatechange' : [ 'load', 'error' ], X_Util_NinjaIframe_handleEvent );\r
 129                         \r
 130                         if( !( X_UA[ 'IE' ] < 9 ) ){\r
 131                                 X_Util_NinjaIframe_writeToIframe( this );\r
 132                                 return;\r
 133                         };\r
 134                         //break; これあると IE8 で駄目！\r
 135                         \r
 136                 case 'readystatechange' :\r
 137                         if( ( raw.readyState !== 'complete' && raw.readyState !== 'loaded' ) ) break;\r
 138                         // ie9-\r
 139                         if( !this._ready ){\r
 140                                 X_Util_NinjaIframe_writeToIframe( this );\r
 141                                 break;\r
 142                         };\r
 143                         // onload\r
 144                 case 'load' :\r
 145                         console.log( 'iframe load.' );\r
 146                         this[ 'asyncDispatch' ]( 'ninjaload' );\r
 147                         break;\r
 148 \r
 149                 case 'error' :\r
 150                         this[ 'asyncDispatch' ]( 'ninjaerror' );\r
 151                         break;\r
 152                 \r
 153                 case X_EVENT_KILL_INSTANCE :\r
 154                         X_ViewPort[ 'unlisten' ]( X_EVENT_AFTER_UPDATE, this, X_Util_NinjaIframe_handleEvent );\r
 155                         this._iwin && this._iwin.close();\r
 156                         break;\r
 157         };\r
 158         \r
 159         return X_CALLBACK_STOP_PROPAGATION;\r
 160 };\r
 161 \r
 162 function X_Util_NinjaIframe_writeToIframe( that ){\r
 163         var raw  = that[ '_rawObject' ],\r
 164                 idoc = raw.contentDocument || that._iwin.document,\r
 165                 html = that._contentHTML;\r
 166         \r
 167         that._ready = true; // これを削除すると ie6,7,8 で Stack overflow at line : 0 意味不明　'readystatechange' が繰り返し起こりループする??\r
 168         delete that._contentHTML;\r
 169 \r
 170         idoc.open();\r
 171         idoc.writeln( html );\r
 172         idoc.close();\r
 173 };\r
 174 \r