javascript在网页中实现读取剪贴板粘贴截图功能(2)

document.getElementById( 'testInput' ).addEventListener( 'paste', function( e ){
    var clipboardData = e.clipboardData,
        i = 0,
        items, item, types;

    if( clipboardData ){
        items = clipboardData.items;

        if( !items ){
            return;
        }

        item = items[0];
        types = clipboardData.types || [];

        for( ; i < types.length; i++ ){
            if( types[i] === 'Files' ){
                item = items[i];
                break;
            }
        }

        if( item && item.kind === 'file' && item.type.match(/^image\//i) ){
            imgReader( item );
        }
    }
    });
})(); 
</script>

</body>
</html>

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