c9-core/plugins/c9.ide.collab/author_layer.js

459 wiersze
20 KiB
JavaScript

define(function(require, module, exports) {
main.consumes = ["Plugin", "ace", "settings", "collab.workspace", "collab.util", "ui", "menus"];
main.provides = ["AuthorLayer"];
return main;
function main(options, imports, register) {
var Plugin = imports.Plugin;
var settings = imports.settings;
var ui = imports.ui;
var ace = imports.ace;
var util = imports["collab.util"];
var menus = imports.menus;
var workspace = imports["collab.workspace"];
var dom = require("ace/lib/dom");
var event = require("ace/lib/event");
var Range = require("ace/range").Range;
var AuthorAttributes = require("./ot/author_attributes")();
var showAuthorInfo = true;
var showAuthorInfoKey = "user/collab/@show-author-info";
settings.on("user/collab", function () {
showAuthorInfo = settings.getBool(showAuthorInfoKey);
}, workspace);
ace.on("create", function(e) {
showAuthorInfo = settings.getBool(showAuthorInfoKey);
initGutterLayer(e.editor.ace);
}, workspace);
menus.addItemByPath("context/ace-gutter/Gutter Options/Show Authorship Info", new ui.item({
type: "check",
checked: showAuthorInfoKey
}), 1000, workspace);
function AuthorLayer(session) {
var plugin = new Plugin("Ajax.org", main.consumes);
// var emit = plugin.getEmitter();
var marker = session.addDynamicMarker({ update: drawAuthInfos }, false);
function refresh() {
var doc = session.collabDoc.original;
var ace = doc.editor && doc.editor.ace;
var aceSession = ace && ace.session;
if (aceSession !== session)
return;
session._emit("changeBackMarker");
var gutter = ace.renderer.$gutterLayer;
gutter.update = updateGutter;
gutter.update(ace.renderer.layerConfig);
}
function drawAuthInfos(html, markerLayer, session, config) {
if (!showAuthorInfo || !util.isRealCollab(workspace))
return;
var doc = session.collabDoc;
var editorDoc = session.doc;
var colorPool = workspace.colorPool;
var reversedAuthorPool = workspace.reversedAuthorPool;
var firstRow = config.firstRow;
var lastRow = config.lastRow;
var range = new Range(firstRow, 0, lastRow, editorDoc.getLine(lastRow).length);
var cache = createAuthorKeyCache(editorDoc, doc.authAttribs, range);
var authKeyCache = cache.authorKeys;
var rowScores = cache.rowScores;
var fold = session.getNextFoldLine(firstRow);
var foldStart = fold ? fold.start.row : Infinity;
for (var i = firstRow; i < lastRow; i++) {
if (i > foldStart) {
i = fold.end.row + 1;
fold = session.getNextFoldLine(i, fold);
foldStart = fold ? fold.start.row : Infinity;
}
if (i > lastRow)
break;
if (!authKeyCache[i] || !rowScores[i])
continue;
var rowScore = rowScores[i];
for (var authVal in rowScore) {
if (authVal == authKeyCache[i])
continue;
var edits = rowScore[authVal].edits;
for (var j = 0; j < edits.length; j++) {
var edit = edits[j];
var uid = reversedAuthorPool[authVal];
var bgColor = colorPool[uid];
var extraStyle = "position:absolute;border-bottom:solid 2px " + util.formatColor(bgColor) + ";z-index: 2000";
var startPos = session.documentToScreenPosition(edit.pos);
markerLayer.drawSingleLineMarker(html,
new Range(startPos.row, startPos.column, startPos.row, startPos.column + edit.length),
"", config, 0, extraStyle);
}
}
}
}
function updateGutter(config) {
var session = this.session;
var firstRow = config.firstRow;
var lastRow = Math.min(config.lastRow + config.gutterOffset, // needed to compensate for hor scollbar
session.getLength() - 1);
var fold = session.getNextFoldLine(firstRow);
var foldStart = fold ? fold.start.row : Infinity;
var foldWidgets = this.$showFoldWidgets && session.foldWidgets;
var breakpoints = session.$breakpoints;
var decorations = session.$decorations;
var firstLineNumber = session.$firstLineNumber;
var lastLineNumber = 0;
var gutterRenderer = session.gutterRenderer || this.$renderer;
var editorDoc = session.doc;
var doc = session.collabDoc;
var range = new Range(firstRow, 0, lastRow, editorDoc.getLine(lastRow).length);
var isCollabGutter = doc && showAuthorInfo && util.isRealCollab(workspace);
var authorKeysCache = isCollabGutter && createAuthorKeyCache(editorDoc, doc.authAttribs, range).authorKeys;
var colorPool = workspace.colorPool;
var reversedAuthorPool = workspace.reversedAuthorPool;
var cell = null;
var index = -1;
var row = firstRow;
while (true) {
if (row > foldStart) {
row = fold.end.row + 1;
fold = session.getNextFoldLine(row, fold);
foldStart = fold ? fold.start.row : Infinity;
}
if (row > lastRow) {
while (this.$cells.length > index + 1) {
cell = this.$cells.pop();
this.element.removeChild(cell.element);
}
break;
}
cell = this.$cells[++index];
if (!cell) {
cell = { element: null, textNode: null, foldWidget: null };
cell.element = dom.createElement("div");
cell.textNode = document.createTextNode('');
cell.element.appendChild(cell.textNode);
this.element.appendChild(cell.element);
this.$cells[index] = cell;
}
var className = "ace_gutter-cell ";
if (breakpoints[row])
className += breakpoints[row];
if (decorations[row])
className += decorations[row];
if (this.$annotations[row])
className += this.$annotations[row].className;
if (cell.element.className != className)
cell.element.className = className;
var height = session.getRowLength(row) * config.lineHeight + "px";
if (height != cell.element.style.height)
cell.element.style.height = height;
if (isCollabGutter) {
var authorKey = authorKeysCache[row];
var authorColor = "transparent";
var fullname = null;
if (authorKey) {
var uid = reversedAuthorPool[authorKey];
authorColor = util.formatColor(colorPool[uid]);
var user = workspace.users[uid];
fullname = user && user.fullname;
}
cell.element.style.borderLeft = "solid 5px " + authorColor;
cell.element.setAttribute("uid", fullname ? uid : "");
} else {
cell.element.style.borderLeft = "";
cell.element.setAttribute("uid", "");
}
if (foldWidgets) {
var c = foldWidgets[row];
// check if cached value is invalidated and we need to recompute
if (c == null)
c = foldWidgets[row] = session.getFoldWidget(row);
}
if (c) {
if (!cell.foldWidget) {
cell.foldWidget = dom.createElement("span");
cell.element.appendChild(cell.foldWidget);
}
var className = "ace_fold-widget ace_" + c;
if (c == "start" && row == foldStart && row < fold.end.row)
className += " ace_closed";
else
className += " ace_open";
if (cell.foldWidget.className != className)
cell.foldWidget.className = className;
var height = config.lineHeight + "px";
if (cell.foldWidget.style.height != height)
cell.foldWidget.style.height = height;
} else {
if (cell.foldWidget) {
cell.element.removeChild(cell.foldWidget);
cell.foldWidget = null;
}
}
var text = lastLineNumber = gutterRenderer
? gutterRenderer.getText(session, row)
: row + firstLineNumber;
if (text != cell.textNode.data)
cell.textNode.data = text;
row++;
}
this.element.style.height = config.minHeight + "px";
if (this.$fixedWidth || session.$useWrapMode)
lastLineNumber = session.getLength() + firstLineNumber;
var gutterWidth = gutterRenderer
? gutterRenderer.getWidth(session, lastLineNumber, config)
: lastLineNumber.toString().length * config.characterWidth;
var padding = this.$padding || this.$computePadding();
gutterWidth += padding.left + padding.right + (isCollabGutter ? 5 : 0);
if (gutterWidth !== this.gutterWidth && !isNaN(gutterWidth)) {
this.gutterWidth = gutterWidth;
this.element.style.width = Math.ceil(this.gutterWidth) + "px";
this._emit("changeGutterWidth", gutterWidth);
}
}
function createAuthorKeyCache (editorDoc, authAttribs, range) {
var startI = editorDoc.positionToIndex(range.start);
var endI = editorDoc.positionToIndex(range.end);
var authKeyCache = {};
var rowScores = {};
var lastPos = range.start;
function processScore(index, length, value) {
var line = editorDoc.getLine(lastPos.row);
var rowScore = rowScores[lastPos.row] = rowScores[lastPos.row] || {};
var score = Math.min(line.length - lastPos.column, length);
var scoreObj = rowScore[value] = rowScore[value] || { edits: [], score: 0 };
scoreObj.edits.push({ pos: lastPos, length: score });
scoreObj.score += score;
var pos = editorDoc.indexToPosition(index + length);
if (lastPos.row !== pos.row) {
if (value) {
for (var i = lastPos.row + 1; i < pos.row; i++)
authKeyCache[i] = value;
}
line = editorDoc.getLine(pos.row);
rowScore = rowScores[pos.row] = rowScores[pos.row] || {};
score = pos.column;
scoreObj = rowScore[value] = rowScore[value] || { edits: [], score: 0 };
scoreObj.edits.push({ pos: pos, length: score });
scoreObj.score += score;
}
lastPos = pos;
}
AuthorAttributes.traverse(authAttribs, startI, endI, processScore);
for (var rowNum in rowScores) {
var rowScore = rowScores[rowNum];
delete rowScore[null];
delete rowScore[undefined];
delete rowScore[0];
var authorKeys = Object.keys(rowScore);
if (authorKeys.length === 0) {
delete rowScores[rowNum];
// authKeyCache[rowNum] = null;
}
else if (authorKeys.length === 1) {
authKeyCache[rowNum] = parseInt(authorKeys[0], 10);
}
else {
var biggestScore = 0;
var authKey;
for (var key in rowScore) {
if (rowScore[key].score > biggestScore) {
biggestScore = rowScore[key].score;
authKey = key;
}
}
authKeyCache[rowNum] = parseInt(authKey, 10);
}
}
return {
authorKeys: authKeyCache,
rowScores: rowScores
};
}
function dispose () {
session.removeMarker(marker.id);
}
plugin.freezePublicAPI({
get colorPool() { return workspace.colorPool; },
refresh: refresh,
dispose: dispose
});
return plugin;
}
function getLineAuthorKey(session, authAttribs, row) {
var editorDoc = session.doc;
var line = editorDoc.getLine(row);
var lineStart = editorDoc.positionToIndex({ row: row, column: 0 }) - 1;
var lineEnd = lineStart + line.length + 1;
var scores = {};
AuthorAttributes.traverse(authAttribs, lineStart, lineEnd, function (index, length, value) {
if (value)
scores[value] = (scores[value] || 0) + length;
});
var authorKeys = Object.keys(scores);
if (authorKeys.length === 0)
return null;
if (authorKeys.length === 1)
return parseInt(authorKeys[0], 10);
var biggestScore = 0;
var authorKey;
for (var key in scores) {
if (scores[key] > biggestScore) {
biggestScore = scores[key];
authorKey = key;
}
}
return parseInt(authorKey, 10);
}
function initGutterLayer(editor) {
if (!editor || editor.$authorGutterInited) return;
editor.$authorGutterInited = true;
var highlightedCell;
var tooltip = editor.tooltip = dom.createElement("div");
tooltip.className = "ace_gutter-tooltip";
tooltip.style.display = "none";
editor.container.appendChild(tooltip);
function onGutterMouseout(e) {
tooltip.style.display = "none";
highlightedCell = null;
}
var gutterEl = editor.renderer.$gutter;
// var gutterEl = editor.renderer.$gutterLayer.element;
// event.addListener(gutterEl, "mousemove", onMousemove);
event.addListener(gutterEl, "mouseout", onGutterMouseout);
gutterEl.addEventListener("mousemove", function(e) {
if (!showAuthorInfo || !util.isRealCollab(workspace))
return;
var target = e.target;
if (highlightedCell != target) {
var uid = target.getAttribute("uid");
if (uid) {
tooltip.style.display = "block";
highlightedCell = target;
var user = workspace.users[uid];
tooltip.textContent = user ? user.fullname : "";
}
}
if (highlightedCell) {
tooltip.style.top = e.clientY - 15 + "px";
tooltip.style.left = e.clientX + "px";
} else {
onGutterMouseout();
}
});
var mousePos;
editor.addEventListener("mousemove", function(e) {
if (!showAuthorInfo || !util.isRealCollab(workspace))
return;
mousePos = { x: e.x, y: e.y };
if (!editor.authorTooltipTimeout)
editor.authorTooltipTimeout = setTimeout(updateTooltip, tooltip.style.display === "block" ? 100 : 300);
});
editor.renderer.container.addEventListener("mouseout", function(e) {
tooltip.style.display = "none";
});
function updateTooltip() {
editor.authorTooltipTimeout = null;
var session = editor.session;
var otDoc = session.collabDoc;
if (!otDoc)
return;
var editorDoc = session.doc;
var authAttribs = otDoc.authAttribs;
var screenPos = editor.renderer.pixelToScreenCoordinates(mousePos.x, mousePos.y);
var docPos = session.screenToDocumentPosition(screenPos.row, screenPos.column);
var line = editorDoc.getLine(docPos.row);
var hoverIndex = editorDoc.positionToIndex({ row: docPos.row, column: docPos.column });
var authorKey = AuthorAttributes.valueAtIndex(authAttribs, hoverIndex);
// ignore newline tooltip and out of text hovering
if (!authorKey || line.length <= screenPos.column || editorDoc.$lines.length < screenPos.row)
return tooltip.style.display = "none";
var lineOwnerKey = getLineAuthorKey(session, authAttribs, docPos.row);
if (!lineOwnerKey || lineOwnerKey === authorKey)
return tooltip.style.display = "none";
var reversedAuthorPool = workspace.reversedAuthorPool;
var uid = reversedAuthorPool[authorKey];
var fullname = workspace.users[uid] && workspace.users[uid].fullname;
tooltip.style.display = "block";
tooltip.textContent = fullname;
tooltip.style.top = mousePos.y + 10 + "px";
tooltip.style.left = mousePos.x + 10 + "px";
}
editor.addEventListener("mousewheel", function documentScroll() {
clearTimeout(editor.authorTooltipTimeout);
delete editor.authorTooltipTimeout;
tooltip.style.display = "none";
});
}
/***** Register and define API *****/
register(null, {
AuthorLayer: AuthorLayer
});
}
});