cloudcmd/lib/client/edward.js
2015-01-23 10:49:23 -05:00

619 lines
20 KiB
JavaScript

var join, ace, load, Util, DOM, io, daffy, restafary;
(function(global, join, DOM, exec, loadRemote) {
'use strict';
if (typeof module !== 'undefined' && module.exports)
module.exports = new Edward();
else
global.edward = new Edward();
function Edward() {
var Ace,
Emmet,
Value,
Config,
PREFIX,
Element,
FileName,
Modelist,
ElementMsg,
JSHintConfig,
DIR = '/modules/',
Files = DOM.Files,
Emitter = new Events(),
Storage = DOM.Storage,
MAX_FILE_SIZE = 512000,
edward = function(el, options, callback) {
if (!options) {
callback = options;
} else {
MAX_FILE_SIZE = options.maxSize || 512000;
PREFIX = options.prefix || '/';
}
Element = el || document.body;
Element.addEventListener('drop', onDrop);
Element.addEventListener('dragover', function(event) {
event.preventDefault();
});
exec.series([
loadFiles,
function(callback) {
loadRemote('socket', {
name : 'io',
noPrefix: true
}, initSocket);
callback();
},
function() {
Ace = ace.edit(Element);
ace.require('ace/ext/language_tools');
Modelist = ace.require('ace/ext/modelist');
load.json(PREFIX + '/json/edit.json', function(error, config) {
var options = config.options;
Config = config;
edward.setOptions(options);
callback();
});
},
]);
};
function createMsg() {
var msg,
wrapper = document.createElement('div'),
html = '<div class="edward-msg">/div>';
wrapper.innerHTML = html;
msg = wrapper.firstChild;
return msg;
}
edward.addCommand = function(options) {
Ace.commands.addCommand(options);
};
edward.clearSelection = function() {
Ace.clearSelection();
return edward;
};
edward.goToLine = function() {
var msg = 'Enter line number:',
cursor = edward.getCursor(),
number = cursor.row + 1,
line = prompt(msg, number);
number = line - 0;
if (number)
Ace.gotoLine(number);
};
edward.moveCursorTo = function(row, column) {
Ace.moveCursorTo(row, column);
return edward;
};
edward.focus = function() {
Ace.focus();
return edward;
};
edward.remove = function(direction) {
Ace.remove(direction);
};
edward.getCursor = function() {
return Ace.selection.getCursor();
};
edward.getValue = function() {
return Ace.getValue();
};
edward.on = function(event, fn) {
Emitter.on(event, fn);
return edward;
};
edward.isChanged = function() {
var value = edward.getValue(),
isEqual = value === Value;
return !isEqual;
};
edward.setValue = function(value) {
Ace.setValue(value);
return edward;
};
edward.setValueFirst = function(name, value) {
var session = edward.getSession(),
UndoManager = ace.require('ace/undomanager').UndoManager;
FileName = name;
Value = value;
Ace.setValue(value);
session.setUndoManager(new UndoManager());
};
edward.setOption = function(name, value) {
Ace.setOption(name, value);
};
edward.setOptions = function(options) {
Ace.setOptions(options);
};
edward.setUseOfWorker = function(mode) {
var isMatch,
session = edward.getSession(),
isStr = typeof mode === 'string',
regStr = 'coffee|css|html|javascript|json|lua|php|xquery',
regExp = new RegExp(regStr);
if (isStr)
isMatch = regExp.test(mode);
session.setUseWorker(isMatch);
};
edward.setMode = function(mode) {
var ext,
modesByName = Modelist.modesByName;
if (modesByName[mode]) {
ext = modesByName[mode].extensions.split('|')[0];
edward.setModeForPath('.' + ext);
}
};
edward.setModeForPath = function(name) {
var session = edward.getSession(),
modesByName = Modelist.modesByName,
mode = Modelist.getModeForPath(name).mode,
htmlMode = modesByName.html.mode,
jsMode = modesByName.javascript.mode,
isHTML = mode === htmlMode,
isJS = mode === jsMode;
session.setMode(mode, function() {
edward.setUseOfWorker(mode);
if (isHTML)
setEmmet();
if (isJS && session.getUseWorker())
setJsHintConfig();
});
};
edward.selectAll = function() {
Ace.selectAll();
};
edward.scrollToLine = function(row) {
Ace.scrollToLine(row, true);
return edward;
};
edward.getSession = function() {
return Ace.getSession();
};
edward.showMessage = function(text) {
var HIDE_TIME = 2000;
if (!ElementMsg) {
ElementMsg = createMsg();
Element.appendChild(ElementMsg);
}
ElementMsg.textContent = text;
ElementMsg.hidden = false;
setTimeout(function() {
ElementMsg.hidden = true;
}, HIDE_TIME);
};
edward.sha = function(callback) {
var dir = DIR + 'jsSHA/',
url = dir + 'src/sha1.js';
load.js(url, function() {
var shaObj, hash, error,
value = edward.getValue();
error = exec.try(function() {
shaObj = new window.jsSHA(value, 'TEXT');
hash = shaObj.getHash('SHA-1', 'HEX');
});
callback(error, hash);
});
};
edward.beautify = function() {
readWithFlag('beautify');
};
edward.minify = function() {
readWithFlag('minify');
};
edward.save = function() {
var value = edward.getValue();
Files.get('config', function(error, config) {
var isDiff = config.diff,
isZip = config.zip;
exec.if(!isDiff, function(patch) {
var query = '',
patchLength = patch && patch.length || 0,
length = Value.length,
isLessMaxLength = length < MAX_FILE_SIZE,
isLessLength = isLessMaxLength && patchLength < length,
isStr = typeof patch === 'string',
isPatch = patch && isStr && isLessLength;
Value = value;
exec.if(!isZip || isPatch, function(equal, data) {
var result = data || Value;
if (isPatch)
edward.save.patch(FileName, patch);
else
edward.save.write(FileName + query, result);
}, function(func) {
zip(value, function(error, data) {
if (error)
console.error(error);
query = '?unzip';
func(null, data);
});
});
}, exec.with(doDiff, FileName));
});
};
edward.save.patch = patchHttp;
edward.save.write = writeHttp;
function patchHttp(path, patch) {
restafary.patch(path, patch, onSave);
}
function writeHttp(path, result) {
restafary.write(path, result, onSave);
}
function onSave(error, text) {
var ret,
msg = '\nShould I save file anyway?';
if (error) {
ret = confirm(error.message + msg);
if (ret)
restafary.write(FileName, Value);
} else {
edward.showMessage(text);
edward.sha(function(error, hash) {
if (error)
console.error(error);
DOM.saveDataToStorage(FileName, Value, hash);
});
Emitter._emit('save', Value.length);
}
}
function doDiff(path, callback) {
var value = edward.getValue();
diff(value, function(patch) {
var isAllowed = Storage.isAllowed();
exec.if(!isAllowed, callback, function(func) {
DOM.checkStorageHash(path, function(error, equal) {
if (!equal)
patch = '';
func(patch);
});
});
});
}
function diff(newValue, callback) {
loadDiff(function(error) {
var patch,
isAllowed = Storage.isAllowed();
if (error) {
alert(error);
} else {
exec.if(!isAllowed, function() {
patch = daffy.createPatch(Value, newValue);
exec(callback, patch);
}, function(func) {
DOM.getDataFromStorage(FileName, function(error, data) {
if (data)
Value = data;
func();
});
});
}
});
}
function loadDiff(callback) {
var url = join([
'google-diff-match-patch/diff_match_patch.js',
'daffy/lib/daffy.js'
].map(function(name) {
return DIR + name;
}));
load.js(url, callback);
}
function zip(value, callback) {
exec.parallel([
function(callback) {
var url = DIR + 'zipio/lib/zipio.js';
load.js(url, callback);
},
function(callback) {
loadRemote('pako', callback);
}
], function(error) {
if (error)
alert(error);
else
global.zipio(value, callback);
});
}
function setEmmet() {
var dir = DIR + 'ace-builds/src-noconflict/',
extensions = Config.extensions,
isEmmet = extensions.emmet;
if (isEmmet)
exec.if(Emmet, function() {
edward.setOption('enableEmmet', true);
}, function(callback) {
var url;
url = join([
dir + 'emmet.js',
dir + 'ext-emmet.js'
]);
load.js(url, function() {
Emmet = ace.require('ace/ext/emmet');
Emmet.setCore(window.emmet);
callback();
});
});
}
function setJsHintConfig(callback) {
var JSHINT_PATH = PREFIX + '/.jshintrc',
func = function() {
var session = edward.getSession(),
worker = session.$worker;
if (worker)
worker.send('changeOptions', [JSHintConfig]);
exec(callback);
};
exec.if(JSHintConfig, func, function() {
load.json(JSHINT_PATH, function(error, json) {
if (error)
alert(error);
else
JSHintConfig = json;
func();
});
});
}
function getHost() {
var l = location,
href = l.origin || l.protocol + '//' + l.host;
return href;
}
function initSocket(error) {
var socket,
href = getHost(),
FIVE_SECONDS = 5000,
patch = function(name, data) {
socket.emit('patch', name, data);
};
if (!error) {
socket = io.connect(href + '/edit', {
'max reconnection attempts' : Math.pow(2, 32),
'reconnection limit' : FIVE_SECONDS
});
socket.on('connect', function() {
edward.save.patch = patch;
});
socket.on('message', function(msg) {
onSave(null, msg);
});
socket.on('patch', function(name, data, hash) {
if (name === FileName)
loadDiff(function(error) {
if (error)
console.error(error);
else
DOM.Storage.get(name + '-hash', function(error, hashLocal) {
var cursor, value;
if (hash === hashLocal) {
cursor = edward.getCursor(),
value = edward.getValue();
value = daffy.applyPatch(value, data);
edward.setValue(value);
edward.sha(function(error, hash) {
DOM.saveDataToStorage(name, value, hash);
edward
.clearSelection()
.moveCursorTo(cursor.row, cursor.column)
.scrollToLine(cursor.row, true);
});
}
});
});
});
socket.on('disconnect', function() {
edward.save.patch = patchHttp;
});
socket.on('err', function(error) {
alert(error);
});
}
}
function readWithFlag(flag) {
var path = FileName;
restafary.read(path + '?' + flag, function(error, data) {
if (error)
alert(error);
else
edward
.setValue(data)
.clearSelection()
.moveCursorTo(0, 0);
});
}
function onDrop(event) {
var reader, files,
onLoad = function(event) {
var data = event.target.result;
edward.setValue(data);
};
event.preventDefault();
files = event.dataTransfer.files;
[].forEach.call(files, function(file) {
reader = new FileReader();
reader.addEventListener('load', onLoad);
reader.readAsBinaryString(file);
});
}
function loadFiles(callback) {
var css = '/css/edward.css',
js = '/restafary.js',
ace = DIR + 'ace-builds/src-noconflict/',
url = join([
ace + 'theme-tomorrow_night_blue',
ace + 'ext-language_tools',
ace + 'ext-searchbox',
ace + 'ext-modelist'
].map(function(name) {
return name + '.js';
}));
exec.series([
function(callback) {
loadScript(DIR + 'load/load.js', callback);
},
function(callback) {
loadRemote('ace', callback);
},
function(callback) {
load.parallel([url, js, css], callback);
},
callback
]);
}
function loadScript(src, callback) {
var element = document.createElement('script');
element.src = src;
element.addEventListener('load', callback);
document.body.appendChild(element);
}
function Events() {
this._all = {};
}
Events.prototype.on = function(event, callback) {
var funcs = this._all[event];
if (funcs)
funcs.push(callback);
else
this._all[event] = [callback];
return this;
};
Events.prototype._emit = function(event, data) {
var funcs = this._all[event];
if (funcs)
funcs.forEach(function(fn) {
fn(data);
});
else if (event === 'error')
throw data;
};
return edward;
}
})(this, join, DOM, Util.exec, DOM.loadRemote);