HackMD/public/js/history.js
2016-10-08 23:04:19 +08:00

382 lines
10 KiB
JavaScript

var store = require('store');
var common = require('./common');
var checkIfAuth = common.checkIfAuth;
var urlpath = common.urlpath;
var extra = require('./extra');
var renderFilename = extra.renderFilename;
var md = extra.md;
var migrateHistoryFromTempCallback = null;
migrateHistoryFromTemp();
function migrateHistoryFromTemp() {
if (url('#tempid')) {
$.get(serverurl + '/temp', {
tempid: url('#tempid')
})
.done(function (data) {
if (data && data.temp) {
getStorageHistory(function (olddata) {
if (!olddata || olddata.length == 0) {
saveHistoryToStorage(JSON.parse(data.temp));
}
});
}
})
.always(function () {
var hash = location.hash.split('#')[1];
hash = hash.split('&');
for (var i = 0; i < hash.length; i++)
if (hash[i].indexOf('tempid') == 0) {
hash.splice(i, 1);
i--;
}
hash = hash.join('&');
location.hash = hash;
if (migrateHistoryFromTempCallback)
migrateHistoryFromTempCallback();
});
}
}
function saveHistory(notehistory) {
checkIfAuth(
function () {
saveHistoryToServer(notehistory);
},
function () {
saveHistoryToStorage(notehistory);
}
);
}
function saveHistoryToStorage(notehistory) {
if (store.enabled)
store.set('notehistory', JSON.stringify(notehistory));
else
saveHistoryToStorage(notehistory);
}
function saveHistoryToCookie(notehistory) {
Cookies.set('notehistory', notehistory, {
expires: 365
});
}
function saveHistoryToServer(notehistory) {
$.post(serverurl + '/history', {
history: JSON.stringify(notehistory)
});
}
function saveCookieHistoryToStorage(callback) {
store.set('notehistory', Cookies.get('notehistory'));
callback();
}
function saveStorageHistoryToServer(callback) {
var data = store.get('notehistory');
if (data) {
$.post(serverurl + '/history', {
history: data
})
.done(function (data) {
callback(data);
});
}
}
function saveCookieHistoryToServer(callback) {
$.post(serverurl + '/history', {
history: Cookies.get('notehistory')
})
.done(function (data) {
callback(data);
});
}
function clearDuplicatedHistory(notehistory) {
var newnotehistory = [];
for (var i = 0; i < notehistory.length; i++) {
var found = false;
for (var j = 0; j < newnotehistory.length; j++) {
var id = notehistory[i].id.replace(/\=+$/, '');
var newId = newnotehistory[j].id.replace(/\=+$/, '');
if (id == newId || notehistory[i].id == newnotehistory[j].id || !notehistory[i].id || !newnotehistory[j].id) {
var time = moment(notehistory[i].time, 'MMMM Do YYYY, h:mm:ss a');
var newTime = moment(newnotehistory[j].time, 'MMMM Do YYYY, h:mm:ss a');
if(time >= newTime) {
newnotehistory[j] = notehistory[i];
}
found = true;
break;
}
}
if (!found)
newnotehistory.push(notehistory[i]);
}
return newnotehistory;
}
function addHistory(id, text, time, tags, pinned, notehistory) {
// only add when note id exists
if (id) {
notehistory.push({
id: id,
text: text,
time: time,
tags: tags,
pinned: pinned
});
}
return notehistory;
}
function removeHistory(id, notehistory) {
for (var i = 0; i < notehistory.length; i++) {
if (notehistory[i].id == id) {
notehistory.splice(i, 1);
i--;
}
}
return notehistory;
}
//used for inner
function writeHistory(view) {
checkIfAuth(
function () {
writeHistoryToServer(view);
},
function () {
writeHistoryToStorage(view);
}
);
}
function writeHistoryToServer(view) {
$.get(serverurl + '/history')
.done(function (data) {
try {
if (data.history) {
var notehistory = data.history;
} else {
var notehistory = [];
}
} catch (err) {
var notehistory = [];
}
if (!notehistory)
notehistory = [];
var newnotehistory = generateHistory(view, notehistory);
saveHistoryToServer(newnotehistory);
})
.fail(function () {
writeHistoryToStorage(view);
});
}
function writeHistoryToCookie(view) {
try {
var notehistory = Cookies.getJSON('notehistory');
} catch (err) {
var notehistory = [];
}
if (!notehistory)
notehistory = [];
var newnotehistory = generateHistory(view, notehistory);
saveHistoryToCookie(newnotehistory);
}
function writeHistoryToStorage(view) {
if (store.enabled) {
var data = store.get('notehistory');
if (data) {
if (typeof data == "string")
data = JSON.parse(data);
var notehistory = data;
} else
var notehistory = [];
if (!notehistory)
notehistory = [];
var newnotehistory = generateHistory(view, notehistory);
saveHistoryToStorage(newnotehistory);
} else {
writeHistoryToCookie(view);
}
}
if (!Array.isArray) {
Array.isArray = function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
}
function renderHistory(view) {
var title = renderFilename(view);
var tags = [];
var rawtags = [];
if (md && md.meta && md.meta.tags && (typeof md.meta.tags == "string" || typeof md.meta.tags == "number")) {
var metaTags = ('' + md.meta.tags).split(',');
for (var i = 0; i < metaTags.length; i++) {
var text = metaTags[i].trim();
if (text) rawtags.push(text);
}
} else {
view.find('h6').each(function (key, value) {
if (/^tags/gmi.test($(value).text())) {
var codes = $(value).find("code");
for (var i = 0; i < codes.length; i++) {
var text = codes[i].innerHTML.trim();
if (text) rawtags.push(text);
}
}
});
}
for (var i = 0; i < rawtags.length; i++) {
var found = false;
for (var j = 0; j < tags.length; j++) {
if (tags[j] == rawtags[i]) {
found = true;
break;
}
}
if (!found)
tags.push(rawtags[i]);
}
//console.debug(tags);
var id = urlpath ? location.pathname.slice(urlpath.length + 1, location.pathname.length).split('/')[1] : location.pathname.split('/')[1];
return {
id: id,
text: title,
time: moment().format('MMMM Do YYYY, h:mm:ss a'),
tags: tags
};
}
function generateHistory(view, notehistory) {
var info = renderHistory(view);
//keep any pinned data
var pinned = false;
for (var i = 0; i < notehistory.length; i++) {
if (notehistory[i].id == info.id && notehistory[i].pinned) {
pinned = true;
break;
}
}
notehistory = removeHistory(info.id, notehistory);
notehistory = addHistory(info.id, info.text, info.time, info.tags, pinned, notehistory);
notehistory = clearDuplicatedHistory(notehistory);
return notehistory;
}
//used for outer
function getHistory(callback) {
checkIfAuth(
function () {
getServerHistory(callback);
},
function () {
getStorageHistory(callback);
}
);
}
function getServerHistory(callback) {
$.get(serverurl + '/history')
.done(function (data) {
if (data.history) {
callback(data.history);
}
})
.fail(function () {
getStorageHistory(callback);
});
}
function getCookieHistory(callback) {
callback(Cookies.getJSON('notehistory'));
}
function getStorageHistory(callback) {
if (store.enabled) {
var data = store.get('notehistory');
if (data) {
if (typeof data == "string")
data = JSON.parse(data);
callback(data);
} else
getCookieHistory(callback);
} else {
getCookieHistory(callback);
}
}
function parseHistory(list, callback) {
checkIfAuth(
function () {
parseServerToHistory(list, callback);
},
function () {
parseStorageToHistory(list, callback);
}
);
}
function parseServerToHistory(list, callback) {
$.get(serverurl + '/history')
.done(function (data) {
if (data.history) {
parseToHistory(list, data.history, callback);
}
})
.fail(function () {
parseStorageToHistory(list, callback);
});
}
function parseCookieToHistory(list, callback) {
var notehistory = Cookies.getJSON('notehistory');
parseToHistory(list, notehistory, callback);
}
function parseStorageToHistory(list, callback) {
if (store.enabled) {
var data = store.get('notehistory');
if (data) {
if (typeof data == "string")
data = JSON.parse(data);
parseToHistory(list, data, callback);
} else
parseCookieToHistory(list, callback);
} else {
parseCookieToHistory(list, callback);
}
}
function parseToHistory(list, notehistory, callback) {
if (!callback) return;
else if (!list || !notehistory) callback(list, notehistory);
else if (notehistory && notehistory.length > 0) {
for (var i = 0; i < notehistory.length; i++) {
//parse time to timestamp and fromNow
notehistory[i].timestamp = moment(notehistory[i].time, 'MMMM Do YYYY, h:mm:ss a').valueOf();
notehistory[i].fromNow = moment(notehistory[i].time, 'MMMM Do YYYY, h:mm:ss a').fromNow();
notehistory[i].time = moment(notehistory[i].time, 'MMMM Do YYYY, h:mm:ss a').format('llll');
if (notehistory[i].id && list.get('id', notehistory[i].id).length == 0)
list.add(notehistory[i]);
}
}
callback(list, notehistory);
}
module.exports = {
writeHistory: writeHistory
}