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Prevent instance init collision

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This commit is contained in:
斟酌 鵬兄 2016-04-04 00:35:59 +08:00
parent a72dcd8ca9
commit cde4dd8c60
1 changed files with 15 additions and 4 deletions
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19
botanjs/src/Components/Vim/VimArea.js
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@ -44,14 +44,25 @@
/* stage @param {Dandelion.IDOMElement} */
var VimArea = function( stage )
{
if( !stage ) return;
if( !stage ) throw new Error( "Invalid argument" );
stage = IDOMElement( stage );
var element = stage.element;
if( element.nodeName != "TEXTAREA" )
if(!( element && element.nodeName == "TEXTAREA" ))
{
debug.Error( "Element is not compatible for VimArea" );
return;
throw new Error( "This element is not compatible for VimArea" );
}
for( var i in Insts )
{
var inst = Insts[ i ];
if( inst.stage.element == element )
{
debug.Info( "Instance exists" );
return inst;
}
}
stage.setAttribute( new DataKey( "vimarea", 1 ) );