wide/static/js/session.js

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JavaScript
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/*
* Copyright (c) 2015, B3log
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var session = {
init: function () {
this._initWS();
// 定时30 秒)保存会话内容.
setInterval(function () {
var request = newWideRequest(),
filse = [],
fileTree = [],
currentId = editors.getCurrentId(),
currentFile = currentId ? editors.getCurrentPath() : "";
editors.tabs.obj._$tabs.find("div").each(function () {
var $it = $(this);
if ($it.find("span:eq(0)").attr("title") !== config.label.start_page) {
filse.push($it.find("span:eq(0)").attr("title"));
}
});
fileTree = tree.getOpenPaths();
request.currentFile = currentFile; // 当前编辑器
request.fileTree = fileTree; // 文件树展开状态
request.files = filse; // 编辑器打开状态
$.ajax({
type: 'POST',
url: config.context + '/session/save',
data: JSON.stringify(request),
dataType: "json",
success: function (data) {
}
});
}, 30000);
},
restore: function () {
if (!config.latestSessionContent) {
return;
}
var fileTree = config.latestSessionContent.FileTree,
files = config.latestSessionContent.Files,
currentFile = config.latestSessionContent.CurrentFile,
id = "",
nodesToOpen = [];
var nodes = tree.fileTree.transformToArray(tree.fileTree.getNodes());
for (var i = 0, ii = nodes.length; i < ii; i++) {
// expand tree
for (var j = 0, jj = fileTree.length; j < jj; j++) {
if (nodes[i].path === fileTree[j]) {
// 当父节点都展开时,才展开该节点
var parents = tree.getAllParents(tree.fileTree.getNodeByTId(nodes[i].tId)),
isOpen = true;
for (var l = 0, max = parents.length; l < max; l++) {
if (parents[l].open === false) {
isOpen = false;
}
}
if (isOpen) {
tree.fileTree.expandNode(nodes[i], true, false, true);
} else {
// 设置状态
nodes[i].open = true;
}
break;
}
}
// open editors
for (var k = 0, kk = files.length; k < kk; k++) {
if (nodes[i].path === files[k]) {
nodesToOpen.push(nodes[i]);
break;
}
}
if (nodes[i].path === currentFile) {
id = nodes[i].tId;
// FIXME: 上面的展开是异步进行的,所以执行到这里的时候可能还没有展开完,导致定位不了可视区域
tree.fileTree.selectNode(nodes[i]);
wide.curNode = nodes[i];
}
}
// 处理编辑器打开顺序
for (var m = 0, mm = files.length; m < mm; m++) {
for (var n = 0, nn = nodesToOpen.length; n < nn; n++) {
if (nodesToOpen[n].path === files[m]) {
tree.openFile(nodesToOpen[n]);
break;
}
}
}
// 设置当前编辑器
editors.tabs.setCurrent(id);
for (var c = 0, max = editors.data.length; c < max; c++) {
if (id === editors.data[c].id) {
wide.curEditor = editors.data[c].editor;
break;
}
}
},
_initWS: function () {
// 用于保持会话,如果该通道断开,则服务器端会销毁会话状态,回收相关资源.
var sessionWS = new ReconnectingWebSocket(config.channel + '/session/ws?sid=' + config.wideSessionId);
sessionWS.onopen = function () {
console.log('[session onopen] connected');
var dateFormat = function (time, fmt) {
var date = new Date(time);
var dateObj = {
"M+": date.getMonth() + 1, //月份
"d+": date.getDate(), //日
"h+": date.getHours(), //小时
"m+": date.getMinutes(), //分
"s+": date.getSeconds(), //秒
"q+": Math.floor((date.getMonth() + 3) / 3), //季度
"S": date.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt))
fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in dateObj)
if (new RegExp("(" + k + ")").test(fmt)) {
fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1)
? (dateObj[k]) : (("00" + dateObj[k]).substr(("" + dateObj[k]).length)));
}
return fmt;
};
var data = {type: "Network", severity: "INFO",
message: "Connected to server [sid=" + config.wideSessionId + "], " + dateFormat(new Date().getTime(), 'yyyy-MM-dd hh:mm:ss')},
$notification = $('.bottom-window-group .notification > table'),
notificationHTML = '';
notificationHTML += '<tr><td class="severity">' + data.severity
+ '</td><td class="message">' + data.message
+ '</td><td class="type">' + data.type + '</td></tr>';
$notification.append(notificationHTML);
};
sessionWS.onmessage = function (e) {
console.log('[session onmessage]' + e.data);
};
sessionWS.onclose = function (e) {
console.log('[session onclose] disconnected (' + e.code + ')');
var data = {type: "Network", severity: "ERROR",
message: "Disconnected from server, trying to reconnect it [sid=" + config.wideSessionId + "]"},
$notification = $('.bottom-window-group .notification > table'),
notificationHTML = '';
notificationHTML += '<tr><td class="severity">' + data.severity
+ '</td><td class="message">' + data.message
+ '</td><td class="type">' + data.type + '</td></tr>';
$notification.append(notificationHTML);
$(".notification-count").show();
};
sessionWS.onerror = function (e) {
console.log('[session onerror] ' + JSON.parse(e));
};
}
};