124 lines
4.1 KiB
HTML
124 lines
4.1 KiB
HTML
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<!doctype html>
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<title>CodeMirror: merge view demo</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../doc/docs.css">
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<link rel=stylesheet href="../lib/codemirror.css">
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<link rel=stylesheet href="../addon/merge/merge.css">
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<script src="../lib/codemirror.js"></script>
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<script src="../mode/xml/xml.js"></script>
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<script src="../mode/css/css.js"></script>
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<script src="../mode/javascript/javascript.js"></script>
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<script src="../mode/htmlmixed/htmlmixed.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/diff_match_patch/20121119/diff_match_patch.js"></script>
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<script src="../addon/merge/merge.js"></script>
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<style>
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.CodeMirror { line-height: 1.2; }
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@media screen and (min-width: 1300px) {
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article { max-width: 1000px; }
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#nav { border-right: 499px solid transparent; }
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}
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span.clicky {
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cursor: pointer;
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background: #d70;
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color: white;
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padding: 0 3px;
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border-radius: 3px;
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}
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</style>
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<div id=nav>
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<a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a>
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<ul>
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<li><a href="../index.html">Home</a>
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<li><a href="../doc/manual.html">Manual</a>
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<li><a href="https://github.com/codemirror/codemirror">Code</a>
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</ul>
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<ul>
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<li><a class=active href="#">merge view</a>
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</ul>
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</div>
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<article>
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<h2>merge view demo</h2>
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<div id=view></div>
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<p>The <a href="../doc/manual.html#addon_merge"><code>merge</code></a>
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addon provides an interface for displaying and merging diffs,
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either <span class=clicky onclick="panes = 2; initUI()">two-way</span>
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or <span class=clicky onclick="panes = 3; initUI()">three-way</span>.
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The left (or center) pane is editable, and the differences with the
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other pane(s) are <span class=clicky
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onclick="toggleDifferences()">optionally</span> shown live as you edit
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it. In the two-way configuration, there are also options to pad changed
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sections to <span class=clicky onclick="connect = connect ? null :
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'align'; initUI()">align</span> them, and to <span class=clicky
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onclick="collapse = !collapse; initUI()">collapse</span> unchanged
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stretches of text.</p>
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<p>This addon depends on
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the <a href="https://code.google.com/p/google-diff-match-patch/">google-diff-match-patch</a>
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library to compute the diffs.</p>
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<script>
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var value, orig1, orig2, dv, panes = 2, highlight = true, connect = "align", collapse = false;
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function initUI() {
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if (value == null) return;
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var target = document.getElementById("view");
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target.innerHTML = "";
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dv = CodeMirror.MergeView(target, {
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value: value,
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origLeft: panes == 3 ? orig1 : null,
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orig: orig2,
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lineNumbers: true,
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mode: "text/html",
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highlightDifferences: highlight,
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connect: connect,
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collapseIdentical: collapse
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});
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}
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function toggleDifferences() {
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dv.setShowDifferences(highlight = !highlight);
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}
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window.onload = function() {
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value = document.documentElement.innerHTML;
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orig1 = "<!doctype html>\n\n" + value.replace(/\.\.\//g, "codemirror/").replace("yellow", "orange");
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orig2 = value.replace(/\u003cscript/g, "\u003cscript type=text/javascript ")
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.replace("white", "purple;\n font: comic sans;\n text-decoration: underline;\n height: 15em");
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initUI();
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let d = document.createElement("div"); d.style.cssText = "width: 50px; margin: 7px; height: 14px"; dv.editor().addLineWidget(57, d)
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};
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function mergeViewHeight(mergeView) {
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function editorHeight(editor) {
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if (!editor) return 0;
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return editor.getScrollInfo().height;
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}
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return Math.max(editorHeight(mergeView.leftOriginal()),
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editorHeight(mergeView.editor()),
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editorHeight(mergeView.rightOriginal()));
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}
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function resize(mergeView) {
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var height = mergeViewHeight(mergeView);
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for(;;) {
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if (mergeView.leftOriginal())
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mergeView.leftOriginal().setSize(null, height);
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mergeView.editor().setSize(null, height);
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if (mergeView.rightOriginal())
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mergeView.rightOriginal().setSize(null, height);
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var newHeight = mergeViewHeight(mergeView);
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if (newHeight >= height) break;
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else height = newHeight;
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}
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mergeView.wrap.style.height = height + "px";
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}
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</script>
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</article>
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