miniflux-legacy/assets/js/feed.js
2014-12-10 16:50:35 +01:00

109 lines
3.2 KiB
JavaScript

Miniflux.Feed = (function() {
// List of subscriptions
var feeds = [];
// List of feeds currently updating
var queue = [];
// Number of concurrent requests when updating all feeds
var queue_length = 5;
// Interval reference for the loading icon
var icon_interval;
// Show the refresh icon when updating a feed
function showRefreshIcon(feed_id)
{
var container = document.getElementById("loading-feed-" + feed_id);
if (container) {
container.appendChild(document.createTextNode("☀"));
container.classList.add("loading-icon-blink");
}
if (! icon_interval) {
icon_interval = setInterval(Miniflux.App.BlinkIcon, 500);
}
}
// Hide the refresh icon after update
function hideRefreshIcon(feed_id)
{
var container = document.getElementById("loading-feed-" + feed_id);
if (container) container.innerHTML = "";
var container = document.getElementById("last-checked-feed-" + feed_id);
if (container) container.innerHTML = container.getAttribute("data-after-update");
}
// Get all subscriptions from the feeds page
function loadFeeds()
{
var links = document.getElementsByTagName("a");
for (var i = 0, ilen = links.length; i < ilen; i++) {
var feed_id = links[i].getAttribute('data-feed-id');
if (feed_id) feeds.push(parseInt(feed_id));
}
}
// Update the items unread/total count for the feed
function updateItemsCounter(feed_id, counts)
{
var container = document.getElementById("items-count-" + feed_id);
if (container) container.innerHTML = counts["items_unread"] + "/" + counts['items_total'];
}
return {
Update: function(feed_id, callback) {
showRefreshIcon(feed_id);
var request = new XMLHttpRequest();
request.onload = function() {
hideRefreshIcon(feed_id);
try {
var response = JSON.parse(this.responseText);
if (response.result) updateItemsCounter(feed_id, response.items_count);
if (callback) callback(response);
}
catch (e) {}
};
request.open("POST", "?action=refresh-feed&feed_id=" + feed_id, true);
request.send();
},
UpdateAll: function() {
loadFeeds();
var interval = setInterval(function() {
while (feeds.length > 0 && queue.length < queue_length) {
var feed_id = feeds.shift();
queue.push(feed_id);
Miniflux.Feed.Update(feed_id, function(response) {
var index = queue.indexOf(response.feed_id);
if (index >= 0) queue.splice(index, 1);
if (feeds.length == 0 && queue.length == 0) {
clearInterval(interval);
clearInterval(icon_interval);
window.location.href = "?action=unread";
}
});
}
}, 100);
}
};
})();