openmedialibrary/static/js/oml.update.js
2016-01-13 13:29:17 +05:30

149 lines
5.7 KiB
JavaScript

'use strict';
(function() {
var animationInterval,
enableDebugMode = getLocalStorage('oml.enableDebugMode'),
oxjsPath = '/static/oxjs/' + (enableDebugMode ? 'dev' : 'min'),
theme = getLocalStorage('Ox.theme')
&& JSON.parse(localStorage['Ox.theme'])
|| 'oxlight';
loadImages(function(images) {
loadScreen(images);
initUpdate();
});
function connectSocket() {
update.socket = new WebSocket('ws://' + document.location.host + '/ws');
update.socket.onopen = function(event) {
if (update.reload) {
reload();
}
};
update.socket.onmessage = function(event) {
var name, data = JSON.parse(event.data);
name = data[0];
data = data[1];
if (name == 'updatestatus') {
update.status.innerHTML = data.status;
update.reload = data.reload;
} else {
console.log(name, data);
}
};
update.socket.onerror = function(event) {
update.socket.close();
};
update.socket.onclose = function(event) {
setTimeout(connectSocket, 1000);
};
}
function getLocalStorage(key) {
try {
return localStorage[key];
} catch(e) {}
}
function initUpdate(browserSupported) {
window.update = {};
update.status = document.createElement('div');
update.status.className = 'OxElement';
update.status.style.position = 'absolute';
update.status.style.left = '16px';
update.status.style.top = '336px';
update.status.style.right = 0;
update.status.style.bottom = 0;
update.status.style.width = '512px';
update.status.style.height = '16px';
update.status.style.margin = 'auto';
update.status.style.textAlign = 'center';
update.status.style.color = 'rgb(16, 16, 16)';
update.status.style.fontFamily = 'Lucida Grande, Segoe UI, DejaVu Sans, Lucida Sans Unicode, Helvetica, Arial, sans-serif';
update.status.style.fontSize = '11px';
document.querySelector('#loadingScreen').appendChild(update.status);
connectSocket();
}
function loadImages(callback) {
var images = {};
images.logo = document.createElement('img');
images.logo.onload = function() {
images.logo.style.position = 'absolute';
images.logo.style.left = 0;
images.logo.style.top = 0;
images.logo.style.right = 0;
images.logo.style.bottom = '96px';
images.logo.style.width = '256px';
images.logo.style.height = '256px';
images.logo.style.margin = 'auto';
images.logo.style.MozUserSelect = 'none';
images.logo.style.MSUserSelect = 'none';
images.logo.style.OUserSelect = 'none';
images.logo.style.WebkitUserSelect = 'none';
images.loadingIcon = document.createElement('img');
images.loadingIcon.setAttribute('id', 'loadingIcon');
images.loadingIcon.style.position = 'absolute';
images.loadingIcon.style.left = '16px';
images.loadingIcon.style.top = '256px'
images.loadingIcon.style.right = 0;
images.loadingIcon.style.bottom = 0;
images.loadingIcon.style.width = '32px';
images.loadingIcon.style.height = '32px';
images.loadingIcon.style.margin = 'auto';
images.loadingIcon.style.MozUserSelect = 'none';
images.loadingIcon.style.MSUserSelect = 'none';
images.loadingIcon.style.OUserSelect = 'none';
images.loadingIcon.style.WebkitUserSelect = 'none';
images.loadingIcon.src = oxjsPath
+ '/UI/themes/' + theme + '/svg/symbolLoading.svg';
callback(images);
};
images.logo.src = '/static/png/oml.png';
}
function loadScreen(images) {
var loadingScreen = document.createElement('div');
loadingScreen.setAttribute('id', 'loadingScreen');
loadingScreen.className = 'OxScreen';
loadingScreen.style.position = 'absolute';
loadingScreen.style.width = '100%';
loadingScreen.style.height = '100%';
loadingScreen.style.backgroundColor = theme == 'oxlight' ? 'rgb(224, 224, 224)'
: theme == 'oxmedium' ? 'rgb(144, 144, 144)' : 'rgb(32, 32, 32)';
loadingScreen.style.zIndex = '1002';
loadingScreen.appendChild(images.logo);
loadingScreen.appendChild(images.loadingIcon);
// FF3.6 document.body can be undefined here
window.onload = function() {
document.body.style.margin = 0;
document.body.appendChild(loadingScreen);
startAnimation();
};
// IE8 does not call onload if already loaded before set
document.body && window.onload();
}
function reload() {
document.location.href = document.location.protocol + '//' + document.location.host;
}
function startAnimation() {
var css, deg = 0, loadingIcon = document.getElementById('loadingIcon'),
previousTime = +new Date();
animationInterval = setInterval(function() {
var currentTime = +new Date(),
delta = (currentTime - previousTime) / 1000;
previousTime = currentTime;
deg = Math.round((deg + delta * 360) % 360 / 30) * 30;
css = 'rotate(' + deg + 'deg)';
loadingIcon.style.MozTransform = css;
loadingIcon.style.MSTransform = css;
loadingIcon.style.OTransform = css;
loadingIcon.style.WebkitTransform = css;
loadingIcon.style.transform = css;
}, 83);
}
}());