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define([
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'/common/common-util.js',
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'/common/sframe-common-codemirror.js',
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'/customize/messages.js',
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'/bower_components/chainpad/chainpad.dist.js',
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], function (Util, SFCodeMirror, Messages, ChainPad) {
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var Markers = {};
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Messages.cba_writtenBy = 'Written by <em>{0}</em>';
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var MARK_OPACITY = 90;
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var addMark = function (Env, from, to, uid) {
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var author = Env.authormarks.authors[uid] || {};
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uid = Number(uid);
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var name = Util.fixHTML(author.name || Messages.anonymous);
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return Env.editor.markText(from, to, {
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inclusiveLeft: uid === Env.myAuthorId,
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inclusiveRight: uid === Env.myAuthorId,
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css: "background-color: " + author.color + MARK_OPACITY,
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attributes: {
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title: Messages._getKey('cba_writtenBy', [name]),
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'data-type': 'authormark',
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'data-uid': uid
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}
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});
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};
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var sortMarks = function (a, b) {
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if (!Array.isArray(b)) { return -1; }
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if (!Array.isArray(a)) { return 1; }
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// Check line
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if (a[1] < b[1]) { return -1; }
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if (a[1] > b[1]) { return 1; }
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// Same line: check start offset
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if (a[2] < b[2]) { return -1; }
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if (a[2] > b[2]) { return 1; }
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return 0;
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};
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var parseMark = Markers.parseMark = function (array) {
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if (!Array.isArray(array)) { return {}; }
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var multiline = typeof(array[4]) !== "undefined";
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var singleChar = typeof(array[3]) === "undefined";
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return {
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startLine: array[1],
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startCh: array[2],
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endLine: multiline ? array[3] : array[1],
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endCh: singleChar ? (array[2]+1) : (multiline ? array[4] : array[3])
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};
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};
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var setAuthorMarks = function (Env, authormarks) {
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authormarks = authormarks || {};
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if (!authormarks.marks) { authormarks.marks = []; }
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if (!authormarks.authors) { authormarks.authors = {}; }
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Env.oldMarks = Env.authormarks;
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Env.authormarks = authormarks;
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};
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var getAuthorMarks = function (Env) {
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return Env.authormarks;
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};
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var updateAuthorMarks = function (Env) {
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// get author marks
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var _marks = [];
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var all = [];
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var i = 0;
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Env.editor.getAllMarks().forEach(function (mark) {
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var pos = mark.find();
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var attributes = mark.attributes || {};
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if (!pos || attributes['data-type'] !== 'authormark') { return; }
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var uid = Number(attributes['data-uid']) || 0;
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all.forEach(function (obj) {
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if (obj.uid !== uid) { return; }
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if (obj.removed) { return; }
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// Merge left
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if (obj.pos.to.line === pos.from.line && obj.pos.to.ch === pos.from.ch) {
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obj.removed = true;
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_marks[obj.index] = undefined;
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obj.mark.clear();
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mark.clear();
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mark = addMark(Env, obj.pos.from, pos.to, uid);
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pos.from = obj.pos.from;
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return;
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}
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// Merge right
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if (obj.pos.from.line === pos.to.line && obj.pos.from.ch === pos.to.ch) {
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obj.removed = true;
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_marks[obj.index] = undefined;
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obj.mark.clear();
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mark.clear();
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mark = addMark(Env, pos.from, obj.pos.to, uid);
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pos.to = obj.pos.to;
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}
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});
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var array = [uid, pos.from.line, pos.from.ch];
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if (pos.from.line === pos.to.line && pos.to.ch > (pos.from.ch+1)) {
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// If there is more than 1 character, add the "to" character
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array.push(pos.to.ch);
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} else if (pos.from.line !== pos.to.line) {
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// If the mark is on more than one line, add the "to" line data
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Array.prototype.push.apply(array, [pos.to.line, pos.to.ch]);
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}
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_marks.push(array);
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all.push({
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uid: uid,
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pos: pos,
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mark: mark,
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index: i
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});
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i++;
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});
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_marks.sort(sortMarks);
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Env.authormarks.marks = _marks.filter(Boolean);
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};
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// Remove marks added by OT and fix the incorrect ones
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// first: data about the change with the lowest offset
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// last: data about the change with the latest offset
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// in the comments, "I" am "first"
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var fixMarks = function (first, last, content, toKeepEnd) {
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var toKeep = [];
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// Get their start position compared to the authDoc
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var lastAuthOffset = last.offset + last.total;
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var lastAuthPos = SFCodeMirror.posToCursor(lastAuthOffset, last.doc);
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// Get their start position compared to the localDoc
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var lastLocalOffset = last.offset + first.total;
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var lastLocalPos = SFCodeMirror.posToCursor(lastLocalOffset, first.doc);
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// Keep their changes in the marks (after their offset)
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last.marks.some(function (array, i) {
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var p = parseMark(array);
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// End of the mark before offset? ignore
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if (p.endLine < lastAuthPos.line) { return; }
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// Take everything from the first mark ending after the pos
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if (p.endLine > lastAuthPos.line || p.endCh >= lastAuthPos.ch) {
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toKeep = last.marks.slice(i);
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last.marks.splice(i);
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return true;
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}
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});
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// Keep my marks (based on currentDoc) before their changes
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var toJoin = {};
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first.marks.some(function (array, i) {
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var p = parseMark(array);
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// End of the mark before offset? ignore
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if (p.endLine < lastLocalPos.line) { return; }
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// Take everything from the first mark ending after the pos
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if (p.endLine > lastLocalPos.line || p.endCh >= lastLocalPos.ch) {
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first.marks.splice(i);
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return true;
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}
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});
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// If we still have markers in "first", store the last one so that we can "join"
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// everything at the end
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if (first.marks.length) {
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var toJoinMark = first.marks[first.marks.length - 1].slice();
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toJoin = parseMark(toJoinMark);
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}
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// Add the new markers to the result
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Array.prototype.unshift.apply(toKeepEnd, toKeep);
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// Fix their offset: compute added lines and added characters on the last line
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// using the chainpad operation data (toInsert and toRemove)
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var pos = SFCodeMirror.posToCursor(first.offset, content);
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var removed = content.slice(first.offset, first.offset + first.toRemove).split('\n');
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var added = first.toInsert.split('\n');
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var addLine = added.length - removed.length;
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var addCh = added[added.length - 1].length - removed[removed.length - 1].length;
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if (addLine > 0) { addCh -= pos.ch; }
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toKeepEnd.forEach(function (array) {
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// Push to correct lines
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array[1] += addLine;
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if (typeof(array[4]) !== "undefined") { array[3] += addLine; }
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// If they have markers on my end line, push their "ch"
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if (array[1] === toJoin[1]) {
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array[2] += addCh;
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// If they have no end line, it means end line === start line,
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// so we also push their end offset
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if (!array[4] && array[3]) { array[3] += addCh; }
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}
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});
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if (toKeep.length && toJoin) {
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// Make sure the marks are joined correctly:
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// fix the start position of the marks to keep
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toKeepEnd[0][1] = toJoin.endLine;
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toKeepEnd[0][2] = toJoin.endCh;
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}
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};
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var checkAuthors = function (Env, userDoc) {
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var chainpad = Env.framework._.cpNfInner.chainpad;
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var editor = Env.editor;
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var CodeMirror = Env.CodeMirror;
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var oldMarks = Env.oldMarks;
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setAuthorMarks(Env, userDoc.authormarks);
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var authDoc = JSON.parse(chainpad.getAuthDoc() || '{}');
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if (!authDoc.content || !userDoc.content) { return; }
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if (authDoc.content === userDoc.content) { return; } // No uncommitted work
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if (!userDoc.authormarks || !Array.isArray(userDoc.authormarks.marks)) { return; }
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var localDoc = CodeMirror.canonicalize(editor.getValue());
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var commonParent = chainpad.getAuthBlock().getParent().getContent().doc;
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var content = JSON.parse(commonParent || '{}').content || '';
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var theirOps = ChainPad.Diff.diff(content, authDoc.content);
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var myOps = ChainPad.Diff.diff(content, localDoc);
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if (!myOps.length || !theirOps.length) { return; }
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// If I have uncommited content when receiving a remote patch, all the operations
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// placed after someone else's changes will create marker issues. We have to fix it
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var ops = {};
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var myTotal = 0;
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var theirTotal = 0;
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var parseOp = function (me) {
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return function (op) {
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var size = (op.toInsert.length - op.toRemove);
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ops[op.offset] = {
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me: me,
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offset: op.offset,
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toInsert: op.toInsert,
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toRemove: op.toRemove,
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size: size,
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marks: (me ? (oldMarks && oldMarks.marks)
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: (authDoc.authormarks && authDoc.authormarks.marks)) || [],
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doc: me ? localDoc : authDoc.content
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};
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if (me) { myTotal += size; }
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else { theirTotal += size; }
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};
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};
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myOps.forEach(parseOp(true));
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theirOps.forEach(parseOp(false));
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var sorted = Object.keys(ops).map(Number);
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sorted.sort().reverse();
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// We start from the end so that we don't have to fix the offsets everytime
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var prev;
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var toKeepEnd = [];
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sorted.forEach(function (offset) {
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var op = ops[offset];
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// Not the same author? fix!
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if (prev && prev.me !== op.me) {
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// Provide the new "totals"
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prev.total = prev.me ? myTotal : theirTotal;
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op.total = op.me ? myTotal : theirTotal;
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// Fix the markers
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fixMarks(op, prev, content, toKeepEnd);
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}
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if (op.me) { myTotal -= op.size; }
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else { theirTotal -= op.size; }
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prev = op;
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});
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// We now have all the markers located after the first operation (ordered by offset).
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// Prepend the markers placed before this operation
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var first = ops[sorted[sorted.length - 1]];
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if (first) { Array.prototype.unshift.apply(toKeepEnd, first.marks); }
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// Commit our new markers
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Env.authormarks.marks = toKeepEnd;
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};
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var setMarks = function (Env) {
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// on remote update: remove all marks, add new marks
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Env.editor.getAllMarks().forEach(function (marker) {
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if (marker.attributes && marker.attributes['data-type'] === 'authormark') {
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marker.clear();
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}
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});
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var authormarks = Env.authormarks;
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authormarks.marks.forEach(function (mark) {
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var uid = mark[0];
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if (!authormarks.authors || !authormarks.authors[uid]) { return; }
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var from = {};
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var to = {};
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from.line = mark[1];
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from.ch = mark[2];
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if (mark.length === 3) {
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to.line = mark[1];
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to.ch = mark[2]+1;
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} else if (mark.length === 4) {
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to.line = mark[1];
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to.ch = mark[3];
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} else if (mark.length === 5) {
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to.line = mark[3];
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to.ch = mark[4];
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}
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// Remove marks that are placed under this one
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Env.editor.findMarks(from, to).forEach(function (mark) {
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if (mark.attributes['data-type'] !== 'authormark') { return; }
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mark.clear();
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});
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addMark(Env, from, to, uid);
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});
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};
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var setMyData = function (Env) {
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var userData = Env.common.getMetadataMgr().getUserData();
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var old = Env.authormarks.authors[Env.myAuthorId];
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if (!old || (old.name === userData.data && old.color === userData.color)) { return; }
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Env.authormarks.authors[Env.myAuthorId] = {
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name: userData.name,
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curvePublic: userData.curvePublic,
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color: userData.color
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};
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return true;
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};
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var localChange = function (Env, change, cb) {
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cb = cb || function () {};
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if (change.origin === "setValue") {
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// If the content is changed from a remote patch, we call localChange
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// in "onContentUpdate" directly
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return;
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}
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if (change.text === undefined || ['+input', 'paste'].indexOf(change.origin) === -1) {
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return void cb();
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}
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// add new author mark if text is added. marks from removed text are removed automatically
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// change.to is not always correct, fix it!
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var to_add = {
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line: change.from.line + change.text.length-1,
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};
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if (change.text.length > 1) {
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// Multiple lines => take the length of the text added to the last line
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to_add.ch = change.text[change.text.length-1].length;
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} else {
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// Single line => use the "from" position and add the length of the text
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to_add.ch = change.from.ch + change.text[change.text.length-1].length;
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}
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// If my text is inside an existing mark:
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// * if it's my mark, do nothing
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// * if it's someone else's mark, break it
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// We can only have one author mark at a given position, but there may be
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// another mark (cursor selection...) at this position so we use ".some"
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var toSplit, abort;
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Env.editor.findMarks(change.from, to_add).some(function (mark) {
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if (!mark.attributes) { return; }
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if (mark.attributes['data-type'] !== 'authormark') { return; }
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if (mark.attributes['data-uid'] !== Env.myAuthorId) {
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toSplit = {
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mark: mark,
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uid: mark.attributes['data-uid']
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};
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} else {
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// This is our mark: abort to avoid making a new one
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abort = true;
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}
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return true;
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});
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if (abort) { return void cb(); }
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// Add my data to the doc if it's missing
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if (!Env.authormarks.authors[Env.myAuthorId]) {
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setMyData(Env);
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}
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if (toSplit && toSplit.mark && typeof(toSplit.uid) !== "undefined") {
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// Break the other user's mark if needed
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var _pos = toSplit.mark.find();
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toSplit.mark.clear();
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addMark(Env, _pos.from, change.from, toSplit.uid); // their mark, 1st part
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addMark(Env, change.from, to_add, Env.myAuthorId); // my mark
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addMark(Env, to_add, _pos.to, toSplit.uid); // their mark, 2nd part
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} else {
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// Add my mark
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addMark(Env, change.from, to_add, Env.myAuthorId);
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}
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cb();
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};
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var authorUid = function (existing) {
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if (!Array.isArray(existing)) { existing = []; }
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var n;
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var i = 0;
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while (!n || existing.indexOf(n) !== -1 && i++ < 1000) {
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n = Math.floor(Math.random() * 1000000);
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}
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// If we can't find a valid number in 1000 iterations, use 0...
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if (existing.indexOf(n) !== -1) { n = 0; }
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return n;
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};
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var getAuthorId = function (Env) {
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var existing = Object.keys(Env.authormarks.authors || {});
|
|
|
if (!Env.common.isLoggedIn()) { return authorUid(existing); }
|
|
|
|
|
|
var userData = Env.common.getMetadataMgr().getUserData();
|
|
|
var uid;
|
|
|
existing.some(function (id) {
|
|
|
var author = Env.authormarks.authors[id] || {};
|
|
|
if (author.curvePublic !== userData.curvePublic) { return; }
|
|
|
uid = Number(id);
|
|
|
return true;
|
|
|
});
|
|
|
return uid || authorUid(existing);
|
|
|
};
|
|
|
|
|
|
var ready = function (Env) {
|
|
|
Env.myAuthorId = getAuthorId(Env);
|
|
|
var changed = setMyData(Env);
|
|
|
if (changed) {
|
|
|
Env.framework.localChange();
|
|
|
setMarks(Env);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
Markers.create = function (config) {
|
|
|
var Env = config;
|
|
|
setAuthorMarks(Env);
|
|
|
Env.myAuthorId = 0;
|
|
|
|
|
|
var metadataMgr = Env.common.getMetadataMgr();
|
|
|
metadataMgr.onChange(function () {
|
|
|
// Update my data
|
|
|
var changed = setMyData(Env);
|
|
|
if (changed) {
|
|
|
Env.framework.localChange();
|
|
|
setMarks(Env);
|
|
|
}
|
|
|
});
|
|
|
|
|
|
var call = function (f) {
|
|
|
return function () {
|
|
|
[].unshift.call(arguments, Env);
|
|
|
return f.apply(null, arguments);
|
|
|
};
|
|
|
};
|
|
|
|
|
|
|
|
|
return {
|
|
|
addMark: call(addMark),
|
|
|
setAuthorMarks: call(setAuthorMarks),
|
|
|
getAuthorMarks: call(getAuthorMarks),
|
|
|
updateAuthorMarks: call(updateAuthorMarks),
|
|
|
checkAuthors: call(checkAuthors),
|
|
|
setMarks: call(setMarks),
|
|
|
localChange: call(localChange),
|
|
|
ready: call(ready),
|
|
|
};
|
|
|
};
|
|
|
|
|
|
return Markers;
|
|
|
});
|