+++ /dev/null
-// Glue code between CodeMirror and Tern.
-//
-// Create a CodeMirror.TernServer to wrap an actual Tern server,
-// register open documents (CodeMirror.Doc instances) with it, and
-// call its methods to activate the assisting functions that Tern
-// provides.
-//
-// Options supported (all optional):
-// * defs: An array of JSON definition data structures.
-// * plugins: An object mapping plugin names to configuration
-// options.
-// * getFile: A function(name, c) that can be used to access files in
-// the project that haven't been loaded yet. Simply do c(null) to
-// indicate that a file is not available.
-// * fileFilter: A function(value, docName, doc) that will be applied
-// to documents before passing them on to Tern.
-// * switchToDoc: A function(name) that should, when providing a
-// multi-file view, switch the view or focus to the named file.
-// * showError: A function(editor, message) that can be used to
-// override the way errors are displayed.
-// * completionTip: Customize the content in tooltips for completions.
-// Is passed a single argument—the completion's data as returned by
-// Tern—and may return a string, DOM node, or null to indicate that
-// no tip should be shown. By default the docstring is shown.
-// * typeTip: Like completionTip, but for the tooltips shown for type
-// queries.
-//
-// It is possible to run the Tern server in a web worker by specifying
-// these additional options:
-// * useWorker: Set to true to enable web worker mode. You'll probably
-// want to feature detect the actual value you use here, for example
-// !!window.Worker.
-// * workerScript: The main script of the worker. Point this to
-// wherever you are hosting worker.js from this directory.
-// * workerDeps: An array of paths pointing (relative to workerScript)
-// to the Acorn and Tern libraries and any Tern plugins you want to
-// load. Or, if you minified those into a single script and included
-// them in the workerScript, simply leave this undefined.
-
-(function() {
- "use strict";
-
- CodeMirror.TernServer = function(options) {
- var self = this;
- this.options = options || {};
- var plugins = this.options.plugins || (this.options.plugins = {});
- if (!plugins.doc_comment) plugins.doc_comment = true;
- if (this.options.useWorker) {
- this.server = new WorkerServer(this);
- } else {
- this.server = new tern.Server({
- getFile: function(name, c) { return getFile(self, name, c); },
- async: true,
- defs: this.options.defs || [],
- plugins: plugins
- });
- }
- this.docs = Object.create(null);
- this.trackChange = function(doc, change) { trackChange(self, doc, change); };
-
- this.cachedArgHints = null;
- this.activeArgHints = null;
- this.jumpStack = [];
- };
-
- CodeMirror.TernServer.prototype = {
- addDoc: function(name, doc) {
- var data = {doc: doc, name: name, changed: null};
- this.server.addFile(name, docValue(this, data));
- CodeMirror.on(doc, "change", this.trackChange);
- return this.docs[name] = data;
- },
-
- delDoc: function(name) {
- var found = this.docs[name];
- if (!found) return;
- CodeMirror.off(found.doc, "change", this.trackChange);
- delete this.docs[name];
- this.server.delFile(name);
- },
-
- hideDoc: function(name) {
- closeArgHints(this);
- var found = this.docs[name];
- if (found && found.changed) sendDoc(this, found);
- },
-
- complete: function(cm) {
- var self = this;
- CodeMirror.showHint(cm, function(cm, c) { return hint(self, cm, c); }, {async: true});
- },
-
- getHint: function(cm, c) { return hint(this, cm, c); },
-
- showType: function(cm) { showType(this, cm); },
-
- updateArgHints: function(cm) { updateArgHints(this, cm); },
-
- jumpToDef: function(cm) { jumpToDef(this, cm); },
-
- jumpBack: function(cm) { jumpBack(this, cm); },
-
- rename: function(cm) { rename(this, cm); },
-
- request: function(cm, query, c) {
- this.server.request(buildRequest(this, findDoc(this, cm.getDoc()), query), c);
- }
- };
-
- var Pos = CodeMirror.Pos;
- var cls = "CodeMirror-Tern-";
- var bigDoc = 250;
-
- function getFile(ts, name, c) {
- var buf = ts.docs[name];
- if (buf)
- c(docValue(ts, buf));
- else if (ts.options.getFile)
- ts.options.getFile(name, c);
- else
- c(null);
- }
-
- function findDoc(ts, doc, name) {
- for (var n in ts.docs) {
- var cur = ts.docs[n];
- if (cur.doc == doc) return cur;
- }
- if (!name) for (var i = 0;; ++i) {
- n = "[doc" + (i || "") + "]";
- if (!ts.docs[n]) { name = n; break; }
- }
- return ts.addDoc(name, doc);
- }
-
- function trackChange(ts, doc, change) {
- var data = findDoc(ts, doc);
-
- var argHints = ts.cachedArgHints;
- if (argHints && argHints.doc == doc && cmpPos(argHints.start, change.to) <= 0)
- ts.cachedArgHints = null;
-
- var changed = data.changed;
- if (changed == null)
- data.changed = changed = {from: change.from.line, to: change.from.line};
- var end = change.from.line + (change.text.length - 1);
- if (change.from.line < changed.to) changed.to = changed.to - (change.to.line - end);
- if (end >= changed.to) changed.to = end + 1;
- if (changed.from > change.from.line) changed.from = change.from.line;
-
- if (doc.lineCount() > bigDoc && change.to - changed.from > 100) setTimeout(function() {
- if (data.changed && data.changed.to - data.changed.from > 100) sendDoc(ts, data);
- }, 200);
- }
-
- function sendDoc(ts, doc) {
- ts.server.request({files: [{type: "full", name: doc.name, text: docValue(ts, doc)}]}, function(error) {
- if (error) console.error(error);
- else doc.changed = null;
- });
- }
-
- // Completion
-
- function hint(ts, cm, c) {
- ts.request(cm, {type: "completions", types: true, docs: true, urls: true}, function(error, data) {
- if (error) return showError(ts, cm, error);
- var completions = [], after = "";
- var from = data.start, to = data.end;
- if (cm.getRange(Pos(from.line, from.ch - 2), from) == "[\"" &&
- cm.getRange(to, Pos(to.line, to.ch + 2)) != "\"]")
- after = "\"]";
-
- for (var i = 0; i < data.completions.length; ++i) {
- var completion = data.completions[i], className = typeToIcon(completion.type);
- if (data.guess) className += " " + cls + "guess";
- completions.push({text: completion.name + after,
- displayText: completion.name,
- className: className,
- data: completion});
- }
-
- var obj = {from: from, to: to, list: completions};
- var tooltip = null;
- CodeMirror.on(obj, "close", function() { remove(tooltip); });
- CodeMirror.on(obj, "update", function() { remove(tooltip); });
- CodeMirror.on(obj, "select", function(cur, node) {
- remove(tooltip);
- var content = ts.options.completionTip ? ts.options.completionTip(cur.data) : cur.data.doc;
- if (content) {
- tooltip = makeTooltip(node.parentNode.getBoundingClientRect().right + window.pageXOffset,
- node.getBoundingClientRect().top + window.pageYOffset, content);
- tooltip.className += " " + cls + "hint-doc";
- }
- });
- c(obj);
- });
- }
-
- function typeToIcon(type) {
- var suffix;
- if (type == "?") suffix = "unknown";
- else if (type == "number" || type == "string" || type == "bool") suffix = type;
- else if (/^fn\(/.test(type)) suffix = "fn";
- else if (/^\[/.test(type)) suffix = "array";
- else suffix = "object";
- return cls + "completion " + cls + "completion-" + suffix;
- }
-
- // Type queries
-
- function showType(ts, cm) {
- ts.request(cm, "type", function(error, data) {
- if (error) return showError(ts, cm, error);
- if (ts.options.typeTip) {
- var tip = ts.options.typeTip(data);
- } else {
- var tip = elt("span", null, elt("strong", null, data.type || "not found"));
- if (data.doc)
- tip.appendChild(document.createTextNode(" — " + data.doc));
- if (data.url) {
- tip.appendChild(document.createTextNode(" "));
- tip.appendChild(elt("a", null, "[docs]")).href = data.url;
- }
- }
- tempTooltip(cm, tip);
- });
- }
-
- // Maintaining argument hints
-
- function updateArgHints(ts, cm) {
- closeArgHints(ts);
-
- if (cm.somethingSelected()) return;
- var lex = cm.getTokenAt(cm.getCursor()).state.lexical;
- if (lex.info != "call") return;
-
- var ch = lex.column, pos = lex.pos || 0;
- for (var line = cm.getCursor().line, e = Math.max(0, line - 9), found = false; line >= e; --line)
- if (cm.getLine(line).charAt(ch) == "(") {found = true; break;}
- if (!found) return;
-
- var start = Pos(line, ch);
- var cache = ts.cachedArgHints;
- if (cache && cache.doc == cm.getDoc() && cmpPos(start, cache.start) == 0)
- return showArgHints(ts, cm, pos);
-
- ts.request(cm, {type: "type", preferFunction: true, end: start}, function(error, data) {
- if (error || !data.type || !(/^fn\(/).test(data.type)) return;
- ts.cachedArgHints = {
- start: pos,
- type: parseFnType(data.type),
- name: data.exprName || data.name || "fn",
- guess: data.guess,
- doc: cm.getDoc()
- };
- showArgHints(ts, cm, pos);
- });
- }
-
- function showArgHints(ts, cm, pos) {
- closeArgHints(ts);
-
- var cache = ts.cachedArgHints, tp = cache.type;
- var tip = elt("span", cache.guess ? cls + "fhint-guess" : null,
- elt("span", cls + "fname", cache.name), "(");
- for (var i = 0; i < tp.args.length; ++i) {
- if (i) tip.appendChild(document.createTextNode(", "));
- var arg = tp.args[i];
- tip.appendChild(elt("span", cls + "farg" + (i == pos ? " " + cls + "farg-current" : ""), arg.name || "?"));
- if (arg.type != "?") {
- tip.appendChild(document.createTextNode(":\u00a0"));
- tip.appendChild(elt("span", cls + "type", arg.type));
- }
- }
- tip.appendChild(document.createTextNode(tp.rettype ? ") ->\u00a0" : ")"));
- if (tp.rettype) tip.appendChild(elt("span", cls + "type", tp.rettype));
- var place = cm.cursorCoords(null, "page");
- ts.activeArgHints = makeTooltip(place.right + 1, place.bottom, tip);
- }
-
- function parseFnType(text) {
- var args = [], pos = 3;
-
- function skipMatching(upto) {
- var depth = 0, start = pos;
- for (;;) {
- var next = text.charAt(pos);
- if (upto.test(next) && !depth) return text.slice(start, pos);
- if (/[{\[\(]/.test(next)) ++depth;
- else if (/[}\]\)]/.test(next)) --depth;
- ++pos;
- }
- }
-
- // Parse arguments
- if (text.charAt(pos) != ")") for (;;) {
- var name = text.slice(pos).match(/^([^, \(\[\{]+): /);
- if (name) {
- pos += name[0].length;
- name = name[1];
- }
- args.push({name: name, type: skipMatching(/[\),]/)});
- if (text.charAt(pos) == ")") break;
- pos += 2;
- }
-
- var rettype = text.slice(pos).match(/^\) -> (.*)$/);
-
- return {args: args, rettype: rettype && rettype[1]};
- }
-
- // Moving to the definition of something
-
- function jumpToDef(ts, cm) {
- function inner(varName) {
- var req = {type: "definition", variable: varName || null};
- var doc = findDoc(ts, cm.getDoc());
- ts.server.request(buildRequest(ts, doc, req), function(error, data) {
- if (error) return showError(ts, cm, error);
- if (!data.file && data.url) { window.open(data.url); return; }
-
- if (data.file) {
- var localDoc = ts.docs[data.file], found;
- if (localDoc && (found = findContext(localDoc.doc, data))) {
- ts.jumpStack.push({file: doc.name,
- start: cm.getCursor("from"),
- end: cm.getCursor("to")});
- moveTo(ts, doc, localDoc, found.start, found.end);
- return;
- }
- }
- showError(ts, cm, "Could not find a definition.");
- });
- }
-
- if (!atInterestingExpression(cm))
- dialog(cm, "Jump to variable", function(name) { if (name) inner(name); });
- else
- inner();
- }
-
- function jumpBack(ts, cm) {
- var pos = ts.jumpStack.pop(), doc = pos && ts.docs[pos.file];
- if (!doc) return;
- moveTo(ts, findDoc(ts, cm.getDoc()), doc, pos.start, pos.end);
- }
-
- function moveTo(ts, curDoc, doc, start, end) {
- doc.doc.setSelection(end, start);
- if (curDoc != doc && ts.options.switchToDoc) {
- closeArgHints(ts);
- ts.options.switchToDoc(doc.name);
- }
- }
-
- // The {line,ch} representation of positions makes this rather awkward.
- function findContext(doc, data) {
- var before = data.context.slice(0, data.contextOffset).split("\n");
- var startLine = data.start.line - (before.length - 1);
- var start = Pos(startLine, (before.length == 1 ? data.start.ch : doc.getLine(startLine).length) - before[0].length);
-
- var text = doc.getLine(startLine).slice(start.ch);
- for (var cur = startLine + 1; cur < doc.lineCount() && text.length < data.context.length; ++cur)
- text += "\n" + doc.getLine(cur);
- if (text.slice(0, data.context.length) == data.context) return data;
-
- var cursor = doc.getSearchCursor(data.context, 0, false);
- var nearest, nearestDist = Infinity;
- while (cursor.findNext()) {
- var from = cursor.from(), dist = Math.abs(from.line - start.line) * 10000;
- if (!dist) dist = Math.abs(from.ch - start.ch);
- if (dist < nearestDist) { nearest = from; nearestDist = dist; }
- }
- if (!nearest) return null;
-
- if (before.length == 1)
- nearest.ch += before[0].length;
- else
- nearest = Pos(nearest.line + (before.length - 1), before[before.length - 1].length);
- if (data.start.line == data.end.line)
- var end = Pos(nearest.line, nearest.ch + (data.end.ch - data.start.ch));
- else
- var end = Pos(nearest.line + (data.end.line - data.start.line), data.end.ch);
- return {start: nearest, end: end};
- }
-
- function atInterestingExpression(cm) {
- var pos = cm.getCursor("end"), tok = cm.getTokenAt(pos);
- if (tok.start < pos.ch && (tok.type == "comment" || tok.type == "string")) return false;
- return /\w/.test(cm.getLine(pos.line).slice(Math.max(pos.ch - 1, 0), pos.ch + 1));
- }
-
- // Variable renaming
-
- function rename(ts, cm) {
- var token = cm.getTokenAt(cm.getCursor());
- if (!/\w/.test(token.string)) showError(ts, cm, "Not at a variable");
- dialog(cm, "New name for " + token.string, function(newName) {
- ts.request(cm, {type: "rename", newName: newName, fullDocs: true}, function(error, data) {
- if (error) return showError(ts, cm, error);
- applyChanges(ts, data.changes);
- });
- });
- }
-
- var nextChangeOrig = 0;
- function applyChanges(ts, changes) {
- var perFile = Object.create(null);
- for (var i = 0; i < changes.length; ++i) {
- var ch = changes[i];
- (perFile[ch.file] || (perFile[ch.file] = [])).push(ch);
- }
- for (var file in perFile) {
- var known = ts.docs[file], chs = perFile[file];;
- if (!known) continue;
- chs.sort(function(a, b) { return cmpPos(b, a); });
- var origin = "*rename" + (++nextChangeOrig);
- for (var i = 0; i < chs.length; ++i) {
- var ch = chs[i];
- known.doc.replaceRange(ch.text, ch.start, ch.end, origin);
- }
- }
- }
-
- // Generic request-building helper
-
- function buildRequest(ts, doc, query) {
- var files = [], offsetLines = 0, allowFragments = !query.fullDocs;
- if (!allowFragments) delete query.fullDocs;
- if (typeof query == "string") query = {type: query};
- query.lineCharPositions = true;
- if (query.end == null) {
- query.end = doc.doc.getCursor("end");
- if (doc.doc.somethingSelected())
- query.start = doc.doc.getCursor("start");
- }
- var startPos = query.start || query.end;
-
- if (doc.changed) {
- if (doc.doc.lineCount() > bigDoc && allowFragments !== false &&
- doc.changed.to - doc.changed.from < 100 &&
- doc.changed.from <= startPos.line && doc.changed.to > query.end.line) {
- files.push(getFragmentAround(doc, startPos, query.end));
- query.file = "#0";
- var offsetLines = files[0].offsetLines;
- if (query.start != null) query.start = Pos(query.start.line - -offsetLines, query.start.ch);
- query.end = Pos(query.end.line - offsetLines, query.end.ch);
- } else {
- files.push({type: "full",
- name: doc.name,
- text: docValue(ts, doc)});
- query.file = doc.name;
- doc.changed = null;
- }
- } else {
- query.file = doc.name;
- }
- for (var name in ts.docs) {
- var cur = ts.docs[name];
- if (cur.changed && cur != doc) {
- files.push({type: "full", name: cur.name, text: docValue(ts, cur)});
- cur.changed = null;
- }
- }
-
- return {query: query, files: files};
- }
-
- function getFragmentAround(data, start, end) {
- var doc = data.doc;
- var minIndent = null, minLine = null, endLine, tabSize = 4;
- for (var p = start.line - 1, min = Math.max(0, p - 50); p >= min; --p) {
- var line = doc.getLine(p), fn = line.search(/\bfunction\b/);
- if (fn < 0) continue;
- var indent = CodeMirror.countColumn(line, null, tabSize);
- if (minIndent != null && minIndent <= indent) continue;
- minIndent = indent;
- minLine = p;
- }
- if (minLine == null) minLine = min;
- var max = Math.min(doc.lastLine(), end.line + 20);
- if (minIndent == null || minIndent == CodeMirror.countColumn(doc.getLine(start.line), null, tabSize))
- endLine = max;
- else for (endLine = end.line + 1; endLine < max; ++endLine) {
- var indent = CodeMirror.countColumn(doc.getLine(endLine), null, tabSize);
- if (indent <= minIndent) break;
- }
- var from = Pos(minLine, 0);
-
- return {type: "part",
- name: data.name,
- offsetLines: from.line,
- text: doc.getRange(from, Pos(endLine, 0))};
- }
-
- // Generic utilities
-
- function cmpPos(a, b) { return a.line - b.line || a.ch - b.ch; }
-
- function elt(tagname, cls /*, ... elts*/) {
- var e = document.createElement(tagname);
- if (cls) e.className = cls;
- for (var i = 2; i < arguments.length; ++i) {
- var elt = arguments[i];
- if (typeof elt == "string") elt = document.createTextNode(elt);
- e.appendChild(elt);
- }
- return e;
- }
-
- function dialog(cm, text, f) {
- if (cm.openDialog)
- cm.openDialog(text + ": <input type=text>", f);
- else
- f(prompt(text, ""));
- }
-
- // Tooltips
-
- function tempTooltip(cm, content) {
- var where = cm.cursorCoords();
- var tip = makeTooltip(where.right + 1, where.bottom, content);
- function clear() {
- if (!tip.parentNode) return;
- cm.off("cursorActivity", clear);
- fadeOut(tip);
- }
- setTimeout(clear, 1700);
- cm.on("cursorActivity", clear);
- }
-
- function makeTooltip(x, y, content) {
- var node = elt("div", cls + "tooltip", content);
- node.style.left = x + "px";
- node.style.top = y + "px";
- document.body.appendChild(node);
- return node;
- }
-
- function remove(node) {
- var p = node && node.parentNode;
- if (p) p.removeChild(node);
- }
-
- function fadeOut(tooltip) {
- tooltip.style.opacity = "0";
- setTimeout(function() { remove(tooltip); }, 1100);
- }
-
- function showError(ts, cm, msg) {
- if (ts.options.showError)
- ts.options.showError(cm, msg);
- else
- tempTooltip(cm, String(msg));
- }
-
- function closeArgHints(ts) {
- if (ts.activeArgHints) { remove(ts.activeArgHints); ts.activeArgHints = null; }
- }
-
- function docValue(ts, doc) {
- var val = doc.doc.getValue();
- if (ts.options.fileFilter) val = ts.options.fileFilter(val, doc.name, doc.doc);
- return val;
- }
-
- // Worker wrapper
-
- function WorkerServer(ts) {
- var worker = new Worker(ts.options.workerScript);
- worker.postMessage({type: "init",
- defs: ts.options.defs,
- plugins: ts.options.plugins,
- scripts: ts.options.workerDeps});
- var msgId = 0, pending = {};
-
- function send(data, c) {
- if (c) {
- data.id = ++msgId;
- pending[msgId] = c;
- }
- worker.postMessage(data);
- }
- worker.onmessage = function(e) {
- var data = e.data;
- if (data.type == "getFile") {
- getFile(ts, name, function(err, text) {
- send({type: "getFile", err: String(err), text: text, id: data.id});
- });
- } else if (data.type == "debug") {
- console.log(data.message);
- } else if (data.id && pending[data.id]) {
- pending[data.id](data.err, data.body);
- delete pending[data.id];
- }
- };
- worker.onerror = function(e) {
- for (var id in pending) pending[id](e);
- pending = {};
- };
-
- this.addFile = function(name, text) { send({type: "add", name: name, text: text}); };
- this.delFile = function(name) { send({type: "del", name: name}); };
- this.request = function(body, c) { send({type: "req", body: body}, c); };
- }
-})();
git://git.onelab.eu / myslice.git / blobdiff