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/* |
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insert text at the position of the cursor in a HTML textarea |
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Version: 1.0 |
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Original code: Arnan de Gans |
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Copyright: (c) 2020 Arnan de Gans |
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*/ |
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function textatcursor(areaId,text) { |
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var txtarea = document.getElementById(areaId); |
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var scrollPos = txtarea.scrollTop; |
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var strPos = 0; |
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var br = ((txtarea.selectionStart || txtarea.selectionStart == '0') ? "ff" : (document.selection ? "ie" : false ) ); |
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|
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if(br == "ie") { |
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txtarea.focus(); |
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var range = document.selection.createRange(); |
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range.moveStart ('character', -txtarea.value.length); |
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strPos = range.text.length; |
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} else if(br == "ff") { |
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strPos = txtarea.selectionStart; |
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} |
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|
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var front = (txtarea.value).substring(0,strPos); |
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var back = (txtarea.value).substring(strPos,txtarea.value.length); |
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txtarea.value=front+text+back; |
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strPos = strPos + text.length; |
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if(br == "ie") { |
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txtarea.focus(); |
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var range = document.selection.createRange(); |
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range.moveStart ('character', -txtarea.value.length); |
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range.moveStart ('character', strPos); |
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range.moveEnd ('character', 0); |
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range.select(); |
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} else if(br == "ff") { |
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txtarea.selectionStart = strPos; |
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txtarea.selectionEnd = strPos; |
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txtarea.focus(); |
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} |
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txtarea.scrollTop = scrollPos; |
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} |
