[javascript] execCommand에서 ‘일반 텍스트로 붙여 넣기’에 대한 Javascript 트릭

Firefox는 클립 보드 데이터에 액세스하는 것을 허용하지 않으므로 작동하려면 ‘핵’을 만들어야합니다. 완전한 솔루션을 찾을 수 없었지만 텍스트 영역을 만들고 대신 붙여 넣어 ctrl + v 붙여 넣기로 수정할 수 있습니다.

//Test if browser has the clipboard object
if (!window.Clipboard)
{
    /*Create a text area element to hold your pasted text
    Textarea is a good choice as it will make anything added to it in to plain text*/           
    var paster = document.createElement("textarea");
    //Hide the textarea
    paster.style.display = "none";              
    document.body.appendChild(paster);
    //Add a new keydown event tou your editor
    editor.addEventListener("keydown", function(e){

        function handlePaste()
        {
            //Get the text from the textarea
            var pastedText = paster.value;
            //Move the cursor back to the editor
            editor.focus();
            //Check that there is a value. FF throws an error for insertHTML with an empty string
            if (pastedText !== "") document.execCommand("insertHTML", false, pastedText);
            //Reset the textarea
            paster.value = "";
        }

        if (e.which === 86 && e.ctrlKey)
        {
            //ctrl+v => paste
            //Set the focus on your textarea
            paster.focus();
            //We need to wait a bit, otherwise FF will still try to paste in the editor => settimeout
            window.setTimeout(handlePaste, 1);
        }

    }, false);
}
else //Pretty much the answer given by pimvdb above
{
    //Add listener for paster to force paste-as-plain-text
    editor.addEventListener("paste", function(e){

        //Get the plain text from the clipboard
        var plain = (!!e.clipboardData)? e.clipboardData.getData("text/plain") : window.clipboardData.getData("Text");
            //Stop default paste action
        e.preventDefault();
        //Paste plain text
        document.execCommand("insertHTML", false, plain);

    }, false);
}

답변

$('#editor').bind('paste', function(){
    var before = document.getElementById('editor').innerHTML;
    setTimeout(function(){
        var after = document.getElementById('editor').innerHTML;
        var pos1 = -1;
        var pos2 = -1;
        for (var i=0; i<after.length; i++) {
            if (pos1 == -1 && before.substr(i, 1) != after.substr(i, 1)) pos1 = i;
            if (pos2 == -1 && before.substr(before.length-i-1, 1) != after.substr(after.length-i-1, 1)) pos2 = i;
        }
        var pasted = after.substr(pos1, after.length-pos2-pos1);
        var replace = pasted.replace(/<[^>]+>/g, '');
        var replaced = after.substr(0, pos1)+replace+after.substr(pos1+pasted.length);
        document.getElementById('editor').innerHTML = replaced;
    }, 100);
});