Function TextInput

ServerEditorWeb/ace/ace.js:1890–2322

(parentNode, host)

var USE_IE_MIME_TYPE =  useragent.isIE;

var TextInput = function(parentNode, host) {
    var text = dom.createElement("textarea");
    text.className = "ace_text-input";

    if (useragent.isTouchPad)
        text.setAttribute("x-palm-disable-auto-cap", true);

    text.setAttribute("wrap", "off");
    text.setAttribute("autocorrect", "off");
    text.setAttribute("autocapitalize", "off");
    text.setAttribute("spellcheck", false);

    text.style.opacity = "0";
    if (useragent.isOldIE) text.style.top = "-1000px";
    parentNode.insertBefore(text, parentNode.firstChild);

    var PLACEHOLDER = "\x01\x01";

    var copied = false;
    var pasted = false;
    var inComposition = false;
    var tempStyle = '';
    var isSelectionEmpty = true;
    try { var isFocused = document.activeElement === text; } catch(e) {}
    
    event.addListener(text, "blur", function(e) {
        host.onBlur(e);
        isFocused = false;
    });
    event.addListener(text, "focus", function(e) {
        isFocused = true;
        host.onFocus(e);
        resetSelection();
    });
    this.focus = function() {
        text.style.position = "fixed";
        text.style.top = "-1000px";
        text.focus();
        setTimeout(function() {
            text.style.position = "";
        }, 0);
    };
    this.blur = function() { text.blur(); };
    this.isFocused = function() {
        return isFocused;
    };
    var syncSelection = lang.delayedCall(function() {
        isFocused && resetSelection(isSelectionEmpty);
    });
    var syncValue = lang.delayedCall(function() {
         if (!inComposition) {
            text.value = PLACEHOLDER;
            isFocused && resetSelection();
         }
    });

    function resetSelection(isEmpty) {
        if (inComposition)