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cryptpad/www/code/main.js

677 lines
25 KiB
JavaScript

define([
'jquery',
'/bower_components/chainpad-crypto/crypto.js',
'/bower_components/chainpad-netflux/chainpad-netflux.js',
'/bower_components/textpatcher/TextPatcher.js',
'/common/toolbar2.js',
'json.sortify',
'/bower_components/chainpad-json-validator/json-ot.js',
'/common/cryptpad-common.js',
'/common/cryptget.js',
'/common/modes.js',
'/common/themes.js',
'/common/visible.js',
'/common/notify.js',
'/bower_components/file-saver/FileSaver.min.js'
], function ($, Crypto, Realtime, TextPatcher, Toolbar, JSONSortify, JsonOT, Cryptpad, Cryptget, Modes, Themes, Visible, Notify) {
var saveAs = window.saveAs;
var Messages = Cryptpad.Messages;
var module = window.APP = {
Cryptpad: Cryptpad,
};
$(function () {
Cryptpad.addLoadingScreen();
var ifrw = module.ifrw = $('#pad-iframe')[0].contentWindow;
var stringify = function (obj) {
return JSONSortify(obj);
};
var toolbar;
var secret = Cryptpad.getSecrets();
var readOnly = secret.keys && !secret.keys.editKeyStr;
if (!secret.keys) {
secret.keys = secret.key;
}
var onConnectError = function () {
Cryptpad.errorLoadingScreen(Messages.websocketError);
};
var andThen = function (CMeditor) {
var CodeMirror = module.CodeMirror = CMeditor;
CodeMirror.modeURL = "/bower_components/codemirror/mode/%N/%N.js";
var $pad = $('#pad-iframe');
var $textarea = $pad.contents().find('#editor1');
var $bar = $('#pad-iframe')[0].contentWindow.$('#cme_toolbox');
var isHistoryMode = false;
var editor = module.editor = CMeditor.fromTextArea($textarea[0], {
lineNumbers: true,
lineWrapping: true,
autoCloseBrackets: true,
matchBrackets : true,
showTrailingSpace : true,
styleActiveLine : true,
search: true,
highlightSelectionMatches: {showToken: /\w+/},
extraKeys: {"Shift-Ctrl-R": undefined},
foldGutter: true,
gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"],
mode: "javascript",
readOnly: true
});
editor.setValue(Messages.codeInitialState);
var setMode = module.setMode = function (mode, $select) {
module.highlightMode = mode;
if (mode === 'text') {
editor.setOption('mode', 'text');
return;
}
CodeMirror.autoLoadMode(editor, mode);
editor.setOption('mode', mode);
if ($select) {
var name = $select.find('a[data-value="' + mode + '"]').text() || 'Mode';
$select.setValue(name);
}
};
var setTheme = module.setTheme = (function () {
var path = '/common/theme/';
var $head = $(ifrw.document.head);
var themeLoaded = module.themeLoaded = function (theme) {
return $head.find('link[href*="'+theme+'"]').length;
};
var loadTheme = module.loadTheme = function (theme) {
$head.append($('<link />', {
rel: 'stylesheet',
href: path + theme + '.css',
}));
};
return function (theme, $select) {
if (!theme) {
editor.setOption('theme', 'default');
} else {
if (!themeLoaded(theme)) {
loadTheme(theme);
}
editor.setOption('theme', theme);
}
if ($select) {
$select.setValue(theme || 'Theme');
}
};
}());
var setEditable = module.setEditable = function (bool) {
if (readOnly && bool) { return; }
editor.setOption('readOnly', !bool);
};
var Title;
var UserList;
var config = {
initialState: '{}',
websocketURL: Cryptpad.getWebsocketURL(),
channel: secret.channel,
// our public key
validateKey: secret.keys.validateKey || undefined,
readOnly: readOnly,
crypto: Crypto.createEncryptor(secret.keys),
network: Cryptpad.getNetwork(),
transformFunction: JsonOT.validate,
};
var canonicalize = function (t) { return t.replace(/\r\n/g, '\n'); };
var setHistory = function (bool, update) {
isHistoryMode = bool;
setEditable(!bool);
if (!bool && update) {
config.onRemote();
}
};
var initializing = true;
var stringifyInner = function (textValue) {
var obj = {
content: textValue,
metadata: {
users: UserList.userData,
defaultTitle: Title.defaultTitle
}
};
if (!initializing) {
obj.metadata.title = Title.title;
}
// set mode too...
obj.highlightMode = module.highlightMode;
// stringify the json and send it into chainpad
return stringify(obj);
};
var onLocal = config.onLocal = function () {
if (initializing) { return; }
if (isHistoryMode) { return; }
if (readOnly) { return; }
editor.save();
var textValue = canonicalize($textarea.val());
var shjson = stringifyInner(textValue);
module.patchText(shjson);
if (module.realtime.getUserDoc() !== shjson) {
console.error("realtime.getUserDoc() !== shjson");
}
};
var getHeadingText = function () {
var lines = editor.getValue().split(/\n/);
var text = '';
lines.some(function (line) {
// lisps?
var lispy = /^\s*(;|#\|)(.*?)$/;
if (lispy.test(line)) {
line.replace(lispy, function (a, one, two) {
text = two;
});
return true;
}
// lines beginning with a hash are potentially valuable
// works for markdown, python, bash, etc.
var hash = /^#(.*?)$/;
if (hash.test(line)) {
line.replace(hash, function (a, one) {
text = one;
});
return true;
}
// lines including a c-style comment are also valuable
var clike = /^\s*(\/\*|\/\/)(.*)?(\*\/)*$/;
if (clike.test(line)) {
line.replace(clike, function (a, one, two) {
if (!(two && two.replace)) { return; }
text = two.replace(/\*\/\s*$/, '').trim();
});
return true;
}
// TODO make one more pass for multiline comments
});
return text.trim();
};
var exportText = module.exportText = function () {
var text = editor.getValue();
var ext = Modes.extensionOf(module.highlightMode);
var title = Cryptpad.fixFileName(Title.suggestTitle('cryptpad')) + (ext || '.txt');
Cryptpad.prompt(Messages.exportPrompt, title, function (filename) {
if (filename === null) { return; }
var blob = new Blob([text], {
type: 'text/plain;charset=utf-8'
});
saveAs(blob, filename);
});
};
var importText = function (content, file) {
var $bar = $('#pad-iframe')[0].contentWindow.$('#cme_toolbox');
var mode;
var mime = CodeMirror.findModeByMIME(file.type);
if (!mime) {
var ext = /.+\.([^.]+)$/.exec(file.name);
if (ext[1]) {
mode = CodeMirror.findModeByExtension(ext[1]);
}
} else {
mode = mime && mime.mode || null;
}
if (mode && Modes.list.some(function (o) { return o.mode === mode; })) {
setMode(mode);
$bar.find('#language-mode').val(mode);
} else {
console.log("Couldn't find a suitable highlighting mode: %s", mode);
setMode('text');
$bar.find('#language-mode').val('text');
}
editor.setValue(content);
onLocal();
};
var updateMetadata = function(shjson) {
// Extract the user list (metadata) from the hyperjson
var json = (shjson === "") ? "" : JSON.parse(shjson);
var titleUpdated = false;
if (json && json.metadata) {
if (json.metadata.users) {
var userData = json.metadata.users;
// Update the local user data
UserList.addToUserData(userData);
}
if (json.metadata.defaultTitle) {
Title.updateDefaultTitle(json.metadata.defaultTitle);
}
if (typeof json.metadata.title !== "undefined") {
Title.updateTitle(json.metadata.title || Title.defaultTitle);
titleUpdated = true;
}
}
if (!titleUpdated) {
Title.updateTitle(Title.defaultTitle);
}
};
config.onInit = function (info) {
UserList = Cryptpad.createUserList(info, config.onLocal, Cryptget, Cryptpad);
var titleCfg = {
$bar: $bar,
getHeadingText: getHeadingText
};
Title = Cryptpad.createTitle(titleCfg, config.onLocal, Cryptpad);
var configTb = {
displayed: ['title', 'useradmin', 'spinner', 'lag', 'state', 'share', 'userlist', 'newpad', 'limit'],
userList: UserList.getToolbarConfig(),
share: {
secret: secret,
channel: info.channel
},
title: Title.getTitleConfig(),
common: Cryptpad,
readOnly: readOnly,
ifrw: ifrw,
realtime: info.realtime,
network: info.network,
$container: $bar
};
toolbar = module.toolbar = Toolbar.create(configTb);
Title.setToolbar(toolbar);
var $rightside = toolbar.$rightside;
var editHash;
if (!readOnly) {
editHash = Cryptpad.getEditHashFromKeys(info.channel, secret.keys);
}
/* add a history button */
var histConfig = {};
histConfig.onRender = function (val) {
if (typeof val === "undefined") { return; }
try {
var hjson = JSON.parse(val || '{}');
var remoteDoc = hjson.content;
editor.setValue(remoteDoc || '');
editor.save();
} catch (e) {
// Probably a parse error
console.error(e);
}
};
histConfig.onClose = function () {
// Close button clicked
setHistory(false, true);
};
histConfig.onRevert = function () {
// Revert button clicked
setHistory(false, false);
config.onLocal();
config.onRemote();
};
histConfig.onReady = function () {
// Called when the history is loaded and the UI displayed
setHistory(true);
};
histConfig.$toolbar = $bar;
var $hist = Cryptpad.createButton('history', true, {histConfig: histConfig});
$rightside.append($hist);
/* save as template */
if (!Cryptpad.isTemplate(window.location.href)) {
var templateObj = {
rt: info.realtime,
Crypt: Cryptget,
getTitle: Title.getTitle
};
var $templateButton = Cryptpad.createButton('template', true, templateObj);
$rightside.append($templateButton);
}
/* add an export button */
var $export = Cryptpad.createButton('export', true, {}, exportText);
$rightside.append($export);
if (!readOnly) {
/* add an import button */
var $import = Cryptpad.createButton('import', true, {}, importText);
$rightside.append($import);
}
/* add a forget button */
var forgetCb = function (err) {
if (err) { return; }
setEditable(false);
};
var $forgetPad = Cryptpad.createButton('forget', true, {}, forgetCb);
$rightside.append($forgetPad);
var configureLanguage = function (cb) {
// FIXME this is async so make it happen as early as possible
var options = [];
Modes.list.forEach(function (l) {
options.push({
tag: 'a',
attributes: {
'data-value': l.mode,
'href': '#',
},
content: l.language // Pretty name of the language value
});
});
var dropdownConfig = {
text: 'Mode', // Button initial text
options: options, // Entries displayed in the menu
left: true, // Open to the left of the button
isSelect: true,
};
var $block = module.$language = Cryptpad.createDropdown(dropdownConfig);
$block.find('a').click(function () {
setMode($(this).attr('data-value'), $block);
onLocal();
});
$rightside.append($block);
cb();
};
var configureTheme = function () {
/* Remember the user's last choice of theme using localStorage */
var themeKey = 'CRYPTPAD_CODE_THEME';
var lastTheme = localStorage.getItem(themeKey) || 'default';
var options = [];
Themes.forEach(function (l) {
options.push({
tag: 'a',
attributes: {
'data-value': l.name,
'href': '#',
},
content: l.name // Pretty name of the language value
});
});
var dropdownConfig = {
text: 'Theme', // Button initial text
options: options, // Entries displayed in the menu
left: true, // Open to the left of the button
isSelect: true,
initialValue: lastTheme
};
var $block = module.$theme = Cryptpad.createDropdown(dropdownConfig);
setTheme(lastTheme, $block);
$block.find('a').click(function () {
var theme = $(this).attr('data-value');
setTheme(theme, $block);
localStorage.setItem(themeKey, theme);
});
$rightside.append($block);
};
if (!readOnly) {
configureLanguage(function () {
configureTheme();
});
}
else {
configureTheme();
}
// set the hash
if (!readOnly) { Cryptpad.replaceHash(editHash); }
};
var unnotify = module.unnotify = function () {
if (module.tabNotification &&
typeof(module.tabNotification.cancel) === 'function') {
module.tabNotification.cancel();
}
};
var notify = module.notify = function () {
if (Visible.isSupported() && !Visible.currently()) {
unnotify();
module.tabNotification = Notify.tab(1000, 10);
}
};
config.onReady = function (info) {
if (module.realtime !== info.realtime) {
var realtime = module.realtime = info.realtime;
module.patchText = TextPatcher.create({
realtime: realtime,
//logging: true
});
}
var userDoc = module.realtime.getUserDoc();
var isNew = false;
if (userDoc === "" || userDoc === "{}") { isNew = true; }
var newDoc = "";
if(userDoc !== "") {
var hjson = JSON.parse(userDoc);
if (typeof (hjson) !== 'object' || Array.isArray(hjson)) {
var errorText = Messages.typeError;
Cryptpad.errorLoadingScreen(errorText);
throw new Error(errorText);
}
newDoc = hjson.content;
if (hjson.highlightMode) {
setMode(hjson.highlightMode, module.$language);
}
}
if (!module.highlightMode) {
setMode('javascript', module.$language);
console.log("%s => %s", module.highlightMode, module.$language.val());
}
// Update the user list (metadata) from the hyperjson
updateMetadata(userDoc);
if (newDoc) {
editor.setValue(newDoc);
}
if (Cryptpad.initialName && Title.isDefaultTitle()) {
Title.updateTitle(Cryptpad.initialName);
}
if (Visible.isSupported()) {
Visible.onChange(function (yes) {
if (yes) { unnotify(); }
});
}
Cryptpad.removeLoadingScreen();
setEditable(true);
initializing = false;
onLocal(); // push local state to avoid parse errors later.
if (readOnly) { return; }
UserList.getLastName(toolbar.$userNameButton, isNew);
};
var cursorToPos = function(cursor, oldText) {
var cLine = cursor.line;
var cCh = cursor.ch;
var pos = 0;
var textLines = oldText.split("\n");
for (var line = 0; line <= cLine; line++) {
if(line < cLine) {
pos += textLines[line].length+1;
}
else if(line === cLine) {
pos += cCh;
}
}
return pos;
};
var posToCursor = function(position, newText) {
var cursor = {
line: 0,
ch: 0
};
var textLines = newText.substr(0, position).split("\n");
cursor.line = textLines.length - 1;
cursor.ch = textLines[cursor.line].length;
return cursor;
};
config.onRemote = function () {
if (initializing) { return; }
if (isHistoryMode) { return; }
var scroll = editor.getScrollInfo();
var oldDoc = canonicalize($textarea.val());
var shjson = module.realtime.getUserDoc();
// Update the user list (metadata) from the hyperjson
updateMetadata(shjson);
var hjson = JSON.parse(shjson);
var remoteDoc = hjson.content;
var highlightMode = hjson.highlightMode;
if (highlightMode && highlightMode !== module.highlightMode) {
setMode(highlightMode, module.$language);
}
//get old cursor here
var oldCursor = {};
oldCursor.selectionStart = cursorToPos(editor.getCursor('from'), oldDoc);
oldCursor.selectionEnd = cursorToPos(editor.getCursor('to'), oldDoc);
editor.setValue(remoteDoc);
editor.save();
var op = TextPatcher.diff(oldDoc, remoteDoc);
var selects = ['selectionStart', 'selectionEnd'].map(function (attr) {
return TextPatcher.transformCursor(oldCursor[attr], op);
});
if(selects[0] === selects[1]) {
editor.setCursor(posToCursor(selects[0], remoteDoc));
}
else {
editor.setSelection(posToCursor(selects[0], remoteDoc), posToCursor(selects[1], remoteDoc));
}
editor.scrollTo(scroll.left, scroll.top);
if (!readOnly) {
var textValue = canonicalize($textarea.val());
var shjson2 = stringifyInner(textValue);
if (shjson2 !== shjson) {
console.error("shjson2 !== shjson");
TextPatcher.log(shjson, TextPatcher.diff(shjson, shjson2));
module.patchText(shjson2);
}
}
if (oldDoc !== remoteDoc) {
notify();
}
};
config.onAbort = function () {
// inform of network disconnect
setEditable(false);
toolbar.failed();
Cryptpad.alert(Messages.common_connectionLost, undefined, true);
};
config.onConnectionChange = function (info) {
setEditable(info.state);
toolbar.failed();
if (info.state) {
initializing = true;
toolbar.reconnecting(info.myId);
Cryptpad.findOKButton().click();
} else {
Cryptpad.alert(Messages.common_connectionLost, undefined, true);
}
};
config.onError = onConnectError;
module.realtime = Realtime.start(config);
editor.on('change', onLocal);
Cryptpad.onLogout(function () { setEditable(false); });
};
var interval = 100;
var second = function (CM) {
Cryptpad.ready(function () {
andThen(CM);
Cryptpad.reportAppUsage();
});
Cryptpad.onError(function (info) {
if (info && info.type === "store") {
onConnectError();
}
});
};
var first = function () {
if (ifrw.CodeMirror) {
// it exists, call your continuation
second(ifrw.CodeMirror);
} else {
console.log("CodeMirror was not defined. Trying again in %sms", interval);
// try again in 'interval' ms
setTimeout(first, interval);
}
};
first();
});
});