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File: FrontEndScripts/libs/codemirror/addon/display/placeholder.js

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  Classes of Aleksey Nemiro   PHP Small Server Administrator   FrontEndScripts/libs/codemirror/addon/display/placeholder.js   Download  
File: FrontEndScripts/libs/codemirror/addon/display/placeholder.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: PHP Small Server Administrator
Web panel for small Debian and Ubuntu servers
Author: By
Last change:
Date: 8 years ago
Size: 2,070 bytes
 

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// CodeMirror, copyright (c) by Marijn Haverbeke and others // Distributed under an MIT license: http://codemirror.net/LICENSE (function(mod) { if (typeof exports == "object" && typeof module == "object") // CommonJS mod(require("../../lib/codemirror")); else if (typeof define == "function" && define.amd) // AMD define(["../../lib/codemirror"], mod); else // Plain browser env mod(CodeMirror); })(function(CodeMirror) { CodeMirror.defineOption("placeholder", "", function(cm, val, old) { var prev = old && old != CodeMirror.Init; if (val && !prev) { cm.on("blur", onBlur); cm.on("change", onChange); onChange(cm); } else if (!val && prev) { cm.off("blur", onBlur); cm.off("change", onChange); clearPlaceholder(cm); var wrapper = cm.getWrapperElement(); wrapper.className = wrapper.className.replace(" CodeMirror-empty", ""); } if (val && !cm.hasFocus()) onBlur(cm); }); function clearPlaceholder(cm) { if (cm.state.placeholder) { cm.state.placeholder.parentNode.removeChild(cm.state.placeholder); cm.state.placeholder = null; } } function setPlaceholder(cm) { clearPlaceholder(cm); var elt = cm.state.placeholder = document.createElement("pre"); elt.style.cssText = "height: 0; overflow: visible"; elt.className = "CodeMirror-placeholder"; var placeHolder = cm.getOption("placeholder") if (typeof placeHolder == "string") placeHolder = document.createTextNode(placeHolder) elt.appendChild(placeHolder) cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild); } function onBlur(cm) { if (isEmpty(cm)) setPlaceholder(cm); } function onChange(cm) { var wrapper = cm.getWrapperElement(), empty = isEmpty(cm); wrapper.className = wrapper.className.replace(" CodeMirror-empty", "") + (empty ? " CodeMirror-empty" : ""); if (empty) setPlaceholder(cm); else clearPlaceholder(cm); } function isEmpty(cm) { return (cm.lineCount() === 1) && (cm.getLine(0) === ""); } });