michael@0: (function() {
michael@0:   // A minilanguage for instantiating linked CodeMirror instances and Docs
michael@0:   function instantiateSpec(spec, place, opts) {
michael@0:     var names = {}, pos = 0, l = spec.length, editors = [];
michael@0:     while (spec) {
michael@0:       var m = spec.match(/^(\w+)(\*?)(?:='([^\']*)'|<(~?)(\w+)(?:\/(\d+)-(\d+))?)\s*/);
michael@0:       var name = m[1], isDoc = m[2], cur;
michael@0:       if (m[3]) {
michael@0:         cur = isDoc ? CodeMirror.Doc(m[3]) : CodeMirror(place, clone(opts, {value: m[3]}));
michael@0:       } else {
michael@0:         var other = m[5];
michael@0:         if (!names.hasOwnProperty(other)) {
michael@0:           names[other] = editors.length;
michael@0:           editors.push(CodeMirror(place, opts));
michael@0:         }
michael@0:         var doc = editors[names[other]].linkedDoc({
michael@0:           sharedHist: !m[4],
michael@0:           from: m[6] ? Number(m[6]) : null,
michael@0:           to: m[7] ? Number(m[7]) : null
michael@0:         });
michael@0:         cur = isDoc ? doc : CodeMirror(place, clone(opts, {value: doc}));
michael@0:       }
michael@0:       names[name] = editors.length;
michael@0:       editors.push(cur);
michael@0:       spec = spec.slice(m[0].length);
michael@0:     }
michael@0:     return editors;
michael@0:   }
michael@0: 
michael@0:   function clone(obj, props) {
michael@0:     if (!obj) return;
michael@0:     clone.prototype = obj;
michael@0:     var inst = new clone();
michael@0:     if (props) for (var n in props) if (props.hasOwnProperty(n))
michael@0:       inst[n] = props[n];
michael@0:     return inst;
michael@0:   }
michael@0: 
michael@0:   function eqAll(val) {
michael@0:     var end = arguments.length, msg = null;
michael@0:     if (typeof arguments[end-1] == "string")
michael@0:       msg = arguments[--end];
michael@0:     if (i == end) throw new Error("No editors provided to eqAll");
michael@0:     for (var i = 1; i < end; ++i)
michael@0:       eq(arguments[i].getValue(), val, msg)
michael@0:   }
michael@0: 
michael@0:   function testDoc(name, spec, run, opts, expectFail) {
michael@0:     if (!opts) opts = {};
michael@0: 
michael@0:     return test("doc_" + name, function() {
michael@0:       var place = document.getElementById("testground");
michael@0:       var editors = instantiateSpec(spec, place, opts);
michael@0:       var successful = false;
michael@0: 
michael@0:       try {
michael@0:         run.apply(null, editors);
michael@0:         successful = true;
michael@0:       } finally {
michael@0:         if (!successful || verbose) {
michael@0:           place.style.visibility = "visible";
michael@0:         } else {
michael@0:           for (var i = 0; i < editors.length; ++i)
michael@0:             if (editors[i] instanceof CodeMirror)
michael@0:               place.removeChild(editors[i].getWrapperElement());
michael@0:         }
michael@0:       }
michael@0:     }, expectFail);
michael@0:   }
michael@0: 
michael@0:   var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
michael@0: 
michael@0:   function testBasic(a, b) {
michael@0:     eqAll("x", a, b);
michael@0:     a.setValue("hey");
michael@0:     eqAll("hey", a, b);
michael@0:     b.setValue("wow");
michael@0:     eqAll("wow", a, b);
michael@0:     a.replaceRange("u\nv\nw", Pos(0, 3));
michael@0:     b.replaceRange("i", Pos(0, 4));
michael@0:     b.replaceRange("j", Pos(2, 1));
michael@0:     eqAll("wowui\nv\nwj", a, b);
michael@0:   }
michael@0: 
michael@0:   testDoc("basic", "A='x' B<A", testBasic);
michael@0:   testDoc("basicSeparate", "A='x' B<~A", testBasic);
michael@0: 
michael@0:   testDoc("sharedHist", "A='ab\ncd\nef' B<A", function(a, b) {
michael@0:     a.replaceRange("x", Pos(0));
michael@0:     b.replaceRange("y", Pos(1));
michael@0:     a.replaceRange("z", Pos(2));
michael@0:     eqAll("abx\ncdy\nefz", a, b);
michael@0:     a.undo();
michael@0:     a.undo();
michael@0:     eqAll("abx\ncd\nef", a, b);
michael@0:     a.redo();
michael@0:     eqAll("abx\ncdy\nef", a, b);
michael@0:     b.redo();
michael@0:     eqAll("abx\ncdy\nefz", a, b);
michael@0:     a.undo(); b.undo(); a.undo(); a.undo();
michael@0:     eqAll("ab\ncd\nef", a, b);
michael@0:   }, null, ie_lt8);
michael@0: 
michael@0:   testDoc("undoIntact", "A='ab\ncd\nef' B<~A", function(a, b) {
michael@0:     a.replaceRange("x", Pos(0));
michael@0:     b.replaceRange("y", Pos(1));
michael@0:     a.replaceRange("z", Pos(2));
michael@0:     a.replaceRange("q", Pos(0));
michael@0:     eqAll("abxq\ncdy\nefz", a, b);
michael@0:     a.undo();
michael@0:     a.undo();
michael@0:     eqAll("abx\ncdy\nef", a, b);
michael@0:     b.undo();
michael@0:     eqAll("abx\ncd\nef", a, b);
michael@0:     a.redo();
michael@0:     eqAll("abx\ncd\nefz", a, b);
michael@0:     a.redo();
michael@0:     eqAll("abxq\ncd\nefz", a, b);
michael@0:     a.undo(); a.undo(); a.undo(); a.undo();
michael@0:     eqAll("ab\ncd\nef", a, b);
michael@0:     b.redo();
michael@0:     eqAll("ab\ncdy\nef", a, b);
michael@0:   });
michael@0: 
michael@0:   testDoc("undoConflict", "A='ab\ncd\nef' B<~A", function(a, b) {
michael@0:     a.replaceRange("x", Pos(0));
michael@0:     a.replaceRange("z", Pos(2));
michael@0:     // This should clear the first undo event in a, but not the second
michael@0:     b.replaceRange("y", Pos(0));
michael@0:     a.undo(); a.undo();
michael@0:     eqAll("abxy\ncd\nef", a, b);
michael@0:     a.replaceRange("u", Pos(2));
michael@0:     a.replaceRange("v", Pos(0));
michael@0:     // This should clear both events in a
michael@0:     b.replaceRange("w", Pos(0));
michael@0:     a.undo(); a.undo();
michael@0:     eqAll("abxyvw\ncd\nefu", a, b);
michael@0:   });
michael@0: 
michael@0:   testDoc("doubleRebase", "A='ab\ncd\nef\ng' B<~A C<B", function(a, b, c) {
michael@0:     c.replaceRange("u", Pos(3));
michael@0:     a.replaceRange("", Pos(0, 0), Pos(1, 0));
michael@0:     c.undo();
michael@0:     eqAll("cd\nef\ng", a, b, c);
michael@0:   });
michael@0: 
michael@0:   testDoc("undoUpdate", "A='ab\ncd\nef' B<~A", function(a, b) {
michael@0:     a.replaceRange("x", Pos(2));
michael@0:     b.replaceRange("u\nv\nw\n", Pos(0, 0));
michael@0:     a.undo();
michael@0:     eqAll("u\nv\nw\nab\ncd\nef", a, b);
michael@0:     a.redo();
michael@0:     eqAll("u\nv\nw\nab\ncd\nefx", a, b);
michael@0:     a.undo();
michael@0:     eqAll("u\nv\nw\nab\ncd\nef", a, b);
michael@0:     b.undo();
michael@0:     a.redo();
michael@0:     eqAll("ab\ncd\nefx", a, b);
michael@0:     a.undo();
michael@0:     eqAll("ab\ncd\nef", a, b);
michael@0:   });
michael@0: 
michael@0:   testDoc("undoKeepRanges", "A='abcdefg' B<A", function(a, b) {
michael@0:     var m = a.markText(Pos(0, 1), Pos(0, 3), {className: "foo"});
michael@0:     b.replaceRange("x", Pos(0, 0));
michael@0:     eqPos(m.find().from, Pos(0, 2));
michael@0:     b.replaceRange("yzzy", Pos(0, 1), Pos(0));
michael@0:     eq(m.find(), null);
michael@0:     b.undo();
michael@0:     eqPos(m.find().from, Pos(0, 2));
michael@0:     b.undo();
michael@0:     eqPos(m.find().from, Pos(0, 1));
michael@0:   });
michael@0: 
michael@0:   testDoc("longChain", "A='uv' B<A C<B D<C", function(a, b, c, d) {
michael@0:     a.replaceSelection("X");
michael@0:     eqAll("Xuv", a, b, c, d);
michael@0:     d.replaceRange("Y", Pos(0));
michael@0:     eqAll("XuvY", a, b, c, d);
michael@0:   });
michael@0: 
michael@0:   testDoc("broadCast", "B<A C<A D<A E<A", function(a, b, c, d, e) {
michael@0:     b.setValue("uu");
michael@0:     eqAll("uu", a, b, c, d, e);
michael@0:     a.replaceRange("v", Pos(0, 1));
michael@0:     eqAll("uvu", a, b, c, d, e);
michael@0:   });
michael@0: 
michael@0:   // A and B share a history, C and D share a separate one
michael@0:   testDoc("islands", "A='x\ny\nz' B<A C<~A D<C", function(a, b, c, d) {
michael@0:     a.replaceRange("u", Pos(0));
michael@0:     d.replaceRange("v", Pos(2));
michael@0:     b.undo();
michael@0:     eqAll("x\ny\nzv", a, b, c, d);
michael@0:     c.undo();
michael@0:     eqAll("x\ny\nz", a, b, c, d);
michael@0:     a.redo();
michael@0:     eqAll("xu\ny\nz", a, b, c, d);
michael@0:     d.redo();
michael@0:     eqAll("xu\ny\nzv", a, b, c, d);
michael@0:   });
michael@0: 
michael@0:   testDoc("unlink", "B<A C<A D<B", function(a, b, c, d) {
michael@0:     a.setValue("hi");
michael@0:     b.unlinkDoc(a);
michael@0:     d.setValue("aye");
michael@0:     eqAll("hi", a, c);
michael@0:     eqAll("aye", b, d);
michael@0:     a.setValue("oo");
michael@0:     eqAll("oo", a, c);
michael@0:     eqAll("aye", b, d);
michael@0:   });
michael@0: 
michael@0:   testDoc("bareDoc", "A*='foo' B*<A C<B", function(a, b, c) {
michael@0:     is(a instanceof CodeMirror.Doc);
michael@0:     is(b instanceof CodeMirror.Doc);
michael@0:     is(c instanceof CodeMirror);
michael@0:     eqAll("foo", a, b, c);
michael@0:     a.replaceRange("hey", Pos(0, 0), Pos(0));
michael@0:     c.replaceRange("!", Pos(0));
michael@0:     eqAll("hey!", a, b, c);
michael@0:     b.unlinkDoc(a);
michael@0:     b.setValue("x");
michael@0:     eqAll("x", b, c);
michael@0:     eqAll("hey!", a);
michael@0:   });
michael@0: 
michael@0:   testDoc("swapDoc", "A='a' B*='b' C<A", function(a, b, c) {
michael@0:     var d = a.swapDoc(b);
michael@0:     d.setValue("x");
michael@0:     eqAll("x", c, d);
michael@0:     eqAll("b", a, b);
michael@0:   });
michael@0: 
michael@0:   testDoc("docKeepsScroll", "A='x' B*='y'", function(a, b) {
michael@0:     addDoc(a, 200, 200);
michael@0:     a.scrollIntoView(Pos(199, 200));
michael@0:     var c = a.swapDoc(b);
michael@0:     a.swapDoc(c);
michael@0:     var pos = a.getScrollInfo();
michael@0:     is(pos.left > 0, "not at left");
michael@0:     is(pos.top > 0, "not at top");
michael@0:   });
michael@0: 
michael@0:   testDoc("copyDoc", "A='u'", function(a) {
michael@0:     var copy = a.getDoc().copy(true);
michael@0:     a.setValue("foo");
michael@0:     copy.setValue("bar");
michael@0:     var old = a.swapDoc(copy);
michael@0:     eq(a.getValue(), "bar");
michael@0:     a.undo();
michael@0:     eq(a.getValue(), "u");
michael@0:     a.swapDoc(old);
michael@0:     eq(a.getValue(), "foo");
michael@0:     eq(old.historySize().undo, 1);
michael@0:     eq(old.copy(false).historySize().undo, 0);
michael@0:   });
michael@0: 
michael@0:   testDoc("docKeepsMode", "A='1+1'", function(a) {
michael@0:     var other = CodeMirror.Doc("hi", "text/x-markdown");
michael@0:     a.setOption("mode", "text/javascript");
michael@0:     var old = a.swapDoc(other);
michael@0:     eq(a.getOption("mode"), "text/x-markdown");
michael@0:     eq(a.getMode().name, "markdown");
michael@0:     a.swapDoc(old);
michael@0:     eq(a.getOption("mode"), "text/javascript");
michael@0:     eq(a.getMode().name, "javascript");
michael@0:   });
michael@0: 
michael@0:   testDoc("subview", "A='1\n2\n3\n4\n5' B<~A/1-3", function(a, b) {
michael@0:     eq(b.getValue(), "2\n3");
michael@0:     eq(b.firstLine(), 1);
michael@0:     b.setCursor(Pos(4));
michael@0:     eqPos(b.getCursor(), Pos(2, 1));
michael@0:     a.replaceRange("-1\n0\n", Pos(0, 0));
michael@0:     eq(b.firstLine(), 3);
michael@0:     eqPos(b.getCursor(), Pos(4, 1));
michael@0:     a.undo();
michael@0:     eqPos(b.getCursor(), Pos(2, 1));
michael@0:     b.replaceRange("oyoy\n", Pos(2, 0));
michael@0:     eq(a.getValue(), "1\n2\noyoy\n3\n4\n5");
michael@0:     b.undo();
michael@0:     eq(a.getValue(), "1\n2\n3\n4\n5");
michael@0:   });
michael@0: 
michael@0:   testDoc("subviewEditOnBoundary", "A='11\n22\n33\n44\n55' B<~A/1-4", function(a, b) {
michael@0:     a.replaceRange("x\nyy\nz", Pos(0, 1), Pos(2, 1));
michael@0:     eq(b.firstLine(), 2);
michael@0:     eq(b.lineCount(), 2);
michael@0:     eq(b.getValue(), "z3\n44");
michael@0:     a.replaceRange("q\nrr\ns", Pos(3, 1), Pos(4, 1));
michael@0:     eq(b.firstLine(), 2);
michael@0:     eq(b.getValue(), "z3\n4q");
michael@0:     eq(a.getValue(), "1x\nyy\nz3\n4q\nrr\ns5");
michael@0:     a.execCommand("selectAll");
michael@0:     a.replaceSelection("!");
michael@0:     eqAll("!", a, b);
michael@0:   });
michael@0: 
michael@0: 
michael@0:   testDoc("sharedMarker", "A='ab\ncd\nef\ngh' B<A C<~A/1-2", function(a, b, c) {
michael@0:     var mark = b.markText(Pos(0, 1), Pos(3, 1),
michael@0:                           {className: "cm-searching", shared: true});
michael@0:     var found = a.findMarksAt(Pos(0, 2));
michael@0:     eq(found.length, 1);
michael@0:     eq(found[0], mark);
michael@0:     eq(c.findMarksAt(Pos(1, 1)).length, 1);
michael@0:     eqPos(mark.find().from, Pos(0, 1));
michael@0:     eqPos(mark.find().to, Pos(3, 1));
michael@0:     b.replaceRange("x\ny\n", Pos(0, 0));
michael@0:     eqPos(mark.find().from, Pos(2, 1));
michael@0:     eqPos(mark.find().to, Pos(5, 1));
michael@0:     var cleared = 0;
michael@0:     CodeMirror.on(mark, "clear", function() {++cleared;});
michael@0:     b.operation(function(){mark.clear();});
michael@0:     eq(a.findMarksAt(Pos(3, 1)).length, 0);
michael@0:     eq(b.findMarksAt(Pos(3, 1)).length, 0);
michael@0:     eq(c.findMarksAt(Pos(3, 1)).length, 0);
michael@0:     eq(mark.find(), null);
michael@0:     eq(cleared, 1);
michael@0:   });
michael@0: 
michael@0:   testDoc("sharedBookmark", "A='ab\ncd\nef\ngh' B<A C<~A/1-2", function(a, b, c) {
michael@0:     var mark = b.setBookmark(Pos(1, 1), {shared: true});
michael@0:     var found = a.findMarksAt(Pos(1, 1));
michael@0:     eq(found.length, 1);
michael@0:     eq(found[0], mark);
michael@0:     eq(c.findMarksAt(Pos(1, 1)).length, 1);
michael@0:     eqPos(mark.find(), Pos(1, 1));
michael@0:     b.replaceRange("x\ny\n", Pos(0, 0));
michael@0:     eqPos(mark.find(), Pos(3, 1));
michael@0:     var cleared = 0;
michael@0:     CodeMirror.on(mark, "clear", function() {++cleared;});
michael@0:     b.operation(function() {mark.clear();});
michael@0:     eq(a.findMarks(Pos(0, 0), Pos(5)).length, 0);
michael@0:     eq(b.findMarks(Pos(0, 0), Pos(5)).length, 0);
michael@0:     eq(c.findMarks(Pos(0, 0), Pos(5)).length, 0);
michael@0:     eq(mark.find(), null);
michael@0:     eq(cleared, 1);
michael@0:   });
michael@0: 
michael@0:   testDoc("undoInSubview", "A='line 0\nline 1\nline 2\nline 3\nline 4' B<A/1-4", function(a, b) {
michael@0:     b.replaceRange("x", Pos(2, 0));
michael@0:     a.undo();
michael@0:     eq(a.getValue(), "line 0\nline 1\nline 2\nline 3\nline 4");
michael@0:     eq(b.getValue(), "line 1\nline 2\nline 3");
michael@0:   });
michael@0: })();