110 lines
3.5 KiB
HTML
Executable File
110 lines
3.5 KiB
HTML
Executable File
<!doctype html>
|
|
|
|
<title>CodeMirror: Multiple Buffer & Split View Demo</title>
|
|
<meta charset="utf-8"/>
|
|
<link rel=stylesheet href="../doc/docs.css">
|
|
|
|
<link rel="stylesheet" href="../lib/codemirror.css">
|
|
<script src="../lib/codemirror.js"></script>
|
|
<script src="../mode/javascript/javascript.js"></script>
|
|
<script src="../mode/css/css.js"></script>
|
|
<style id=style>
|
|
.CodeMirror {border: 1px solid black; height: 250px;}
|
|
</style>
|
|
<div id=nav>
|
|
<a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a>
|
|
|
|
<ul>
|
|
<li><a href="../index.html">Home</a>
|
|
<li><a href="../doc/manual.html">Manual</a>
|
|
<li><a href="https://github.com/codemirror/codemirror">Code</a>
|
|
</ul>
|
|
<ul>
|
|
<li><a class=active href="#">Multiple Buffer & Split View</a>
|
|
</ul>
|
|
</div>
|
|
|
|
<article>
|
|
<h2>Multiple Buffer & Split View Demo</h2>
|
|
|
|
|
|
<div id=code_top></div>
|
|
<div>
|
|
Select buffer: <select id=buffers_top></select>
|
|
<button onclick="newBuf('top')">New buffer</button>
|
|
</div>
|
|
<div id=code_bot></div>
|
|
<div>
|
|
Select buffer: <select id=buffers_bot></select>
|
|
<button onclick="newBuf('bot')">New buffer</button>
|
|
</div>
|
|
|
|
<script id=script>
|
|
var sel_top = document.getElementById("buffers_top");
|
|
CodeMirror.on(sel_top, "change", function() {
|
|
selectBuffer(ed_top, sel_top.options[sel_top.selectedIndex].value);
|
|
});
|
|
|
|
var sel_bot = document.getElementById("buffers_bot");
|
|
CodeMirror.on(sel_bot, "change", function() {
|
|
selectBuffer(ed_bot, sel_bot.options[sel_bot.selectedIndex].value);
|
|
});
|
|
|
|
var buffers = {};
|
|
|
|
function openBuffer(name, text, mode) {
|
|
buffers[name] = CodeMirror.Doc(text, mode);
|
|
var opt = document.createElement("option");
|
|
opt.appendChild(document.createTextNode(name));
|
|
sel_top.appendChild(opt);
|
|
sel_bot.appendChild(opt.cloneNode(true));
|
|
}
|
|
|
|
function newBuf(where) {
|
|
var name = prompt("Name for the buffer", "*scratch*");
|
|
if (name == null) return;
|
|
if (buffers.hasOwnProperty(name)) {
|
|
alert("There's already a buffer by that name.");
|
|
return;
|
|
}
|
|
openBuffer(name, "", "javascript");
|
|
selectBuffer(where == "top" ? ed_top : ed_bot, name);
|
|
var sel = where == "top" ? sel_top : sel_bot;
|
|
sel.value = name;
|
|
}
|
|
|
|
function selectBuffer(editor, name) {
|
|
var buf = buffers[name];
|
|
if (buf.getEditor()) buf = buf.linkedDoc({sharedHist: true});
|
|
var old = editor.swapDoc(buf);
|
|
var linked = old.iterLinkedDocs(function(doc) {linked = doc;});
|
|
if (linked) {
|
|
// Make sure the document in buffers is the one the other view is looking at
|
|
for (var name in buffers) if (buffers[name] == old) buffers[name] = linked;
|
|
old.unlinkDoc(linked);
|
|
}
|
|
editor.focus();
|
|
}
|
|
|
|
function nodeContent(id) {
|
|
var node = document.getElementById(id), val = node.textContent || node.innerText;
|
|
val = val.slice(val.match(/^\s*/)[0].length, val.length - val.match(/\s*$/)[0].length) + "\n";
|
|
return val;
|
|
}
|
|
openBuffer("js", nodeContent("script"), "javascript");
|
|
openBuffer("css", nodeContent("style"), "css");
|
|
|
|
var ed_top = CodeMirror(document.getElementById("code_top"), {lineNumbers: true});
|
|
selectBuffer(ed_top, "js");
|
|
var ed_bot = CodeMirror(document.getElementById("code_bot"), {lineNumbers: true});
|
|
selectBuffer(ed_bot, "js");
|
|
</script>
|
|
|
|
<p>Demonstration of
|
|
using <a href="../doc/manual.html#linkedDoc">linked documents</a>
|
|
to provide a split view on a document, and
|
|
using <a href="../doc/manual.html#swapDoc"><code>swapDoc</code></a>
|
|
to use a single editor to display multiple documents.</p>
|
|
|
|
</article>
|