mirror of
https://github.com/writeas/writefreely
synced 2024-12-08 06:31:47 +01:00
316 lines
8.6 KiB
JavaScript
316 lines
8.6 KiB
JavaScript
/**
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* Functionality for managing local Write.as posts.
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*
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* Dependencies:
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* h.js
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*/
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function toggleTheme() {
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var btns;
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try {
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btns = Array.prototype.slice.call(document.getElementById('belt').querySelectorAll('.tool img'));
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} catch (e) {}
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if (document.body.className == 'light') {
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document.body.className = 'dark';
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try {
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for (var i=0; i<btns.length; i++) {
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btns[i].src = btns[i].src.replace('_dark@2x.png', '@2x.png');
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}
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} catch (e) {}
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} else if (document.body.className == 'dark') {
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document.body.className = 'light';
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try {
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for (var i=0; i<btns.length; i++) {
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btns[i].src = btns[i].src.replace('@2x.png', '_dark@2x.png');
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}
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} catch (e) {}
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} else {
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// Don't alter the theme
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return;
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}
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H.set('padTheme', document.body.className);
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}
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if (H.get('padTheme', 'light') != 'light') {
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toggleTheme();
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}
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var deleting = false;
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function delPost(e, id, owned) {
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e.preventDefault();
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if (deleting) {
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return;
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}
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// TODO: UNDO!
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if (window.confirm('Are you sure you want to delete this post?')) {
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var token;
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for (var i=0; i<posts.length; i++) {
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if (posts[i].id == id) {
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token = posts[i].token;
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break;
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}
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}
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if (owned || token) {
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// AJAX
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deletePost(id, token, function() {
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// Remove post from list
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var $postEl = document.getElementById('post-' + id);
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$postEl.parentNode.removeChild($postEl);
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if (posts.length == 0) {
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displayNoPosts();
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return;
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}
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// Fill in full page of posts
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var $postsChildren = $posts.el.getElementsByClassName('post');
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if ($postsChildren.length < postsPerPage && $postsChildren.length < posts.length) {
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var lastVisiblePostID = $postsChildren[$postsChildren.length-1].id;
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lastVisiblePostID = lastVisiblePostID.substr(lastVisiblePostID.indexOf('-')+1);
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for (var i=0; i<posts.length-1; i++) {
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if (posts[i].id == lastVisiblePostID) {
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var $moreBtn = document.getElementById('more-posts');
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if ($moreBtn) {
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// Should always land here (?)
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$posts.el.insertBefore(createPostEl(posts[i-1]), $moreBtn);
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} else {
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$posts.el.appendChild(createPostEl(posts[i-1]));
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}
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}
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}
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}
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});
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} else {
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alert('Something went seriously wrong. Try refreshing.');
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}
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}
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}
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var getFormattedDate = function(d) {
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var mos = [
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"January", "February", "March",
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"April", "May", "June", "July",
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"August", "September", "October",
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"November", "December"
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];
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var day = d.getDate();
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var mo = d.getMonth();
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var yr = d.getFullYear();
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return mos[mo] + ' ' + day + ', ' + yr;
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};
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var posts = JSON.parse(H.get('posts', '[]'));
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var initialListPop = function() {
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pages = Math.ceil(posts.length / postsPerPage);
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loadPage(page, true);
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};
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var $posts = H.getEl("posts");
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if ($posts.el == null) {
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$posts = H.getEl("unsynced-posts");
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}
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$posts.el.innerHTML = '<p class="status">Reading...</p>';
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var createMorePostsEl = function() {
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var $more = document.createElement('div');
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var nextPage = page+1;
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$more.id = 'more-posts';
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$more.innerHTML = '<p><a href="#' + nextPage + '">More...</a></p>';
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return $more;
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};
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var localPosts = function() {
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var $delPost, lastDelPost, lastInfoHTML;
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var $info = He.get('unsynced-posts-info');
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var findPostIdx = function(id) {
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for (var i=0; i<posts.length; i++) {
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if (posts[i].id == id) {
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return i;
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}
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}
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return -1;
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};
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var DismissError = function(e, el) {
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e.preventDefault();
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var $errorMsg = el.parentNode.previousElementSibling;
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$errorMsg.parentNode.removeChild($errorMsg);
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var $errorMsgNav = el.parentNode;
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$errorMsgNav.parentNode.removeChild($errorMsgNav);
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};
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var DeletePostLocal = function(e, el, id) {
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e.preventDefault();
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if (!window.confirm('Are you sure you want to delete this post?')) {
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return;
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}
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var i = findPostIdx(id);
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if (i > -1) {
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lastDelPost = posts.splice(i, 1)[0];
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$delPost = H.getEl('post-'+id);
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$delPost.setClass('del-undo');
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var $unsyncPosts = document.getElementById('unsynced-posts');
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var visible = $unsyncPosts.children.length;
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for (var i=0; i < $unsyncPosts.children.length; i++) { // NOTE: *.children support in IE9+
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if ($unsyncPosts.children[i].className.indexOf('del-undo') !== -1) {
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visible--;
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}
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}
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if (visible == 0) {
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H.getEl('unsynced-posts-header').hide();
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// TODO: fix undo functionality and don't do the following:
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H.getEl('unsynced-posts-info').hide();
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}
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H.set('posts', JSON.stringify(posts));
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// TODO: fix undo functionality and re-add
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//lastInfoHTML = $info.innerHTML;
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//$info.innerHTML = 'Unsynced entry deleted. <a href="#" onclick="localPosts.undoDelete()">Undo</a>.';
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}
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};
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var UndoDelete = function() {
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// TODO: fix this header reappearing
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H.getEl('unsynced-posts-header').show();
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$delPost.removeClass('del-undo');
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$info.innerHTML = lastInfoHTML;
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};
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return {
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dismissError: DismissError,
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deletePost: DeletePostLocal,
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undoDelete: UndoDelete,
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};
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}();
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var createPostEl = function(post) {
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var $post = document.createElement('div');
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var title = (post.title || post.id);
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title = title.replace(/</g, "<");
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$post.id = 'post-' + post.id;
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$post.className = 'post';
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$post.innerHTML = '<h3><a href="/' + post.id + '">' + title + '</a></h3>';
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var posted = "";
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if (post.created) {
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posted = getFormattedDate(new Date(post.created))
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}
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var hasDraft = H.exists('draft' + post.id);
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$post.innerHTML += '<h4><date>' + posted + '</date> <a class="action" href="/pad/' + post.id + '">edit' + (hasDraft ? 'ed' : '') + '</a> <a class="delete action" href="/' + post.id + '" onclick="delPost(event, \'' + post.id + '\')">delete</a></h4>';
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if (post.error) {
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$post.innerHTML += '<p class="error"><strong>Sync error:</strong> ' + post.error + ' <nav><a href="#" onclick="localPosts.dismissError(event, this)">dismiss</a> <a href="#" onclick="localPosts.deletePost(event, this, \''+post.id+'\')">remove post</a></nav></p>';
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}
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if (post.summary) {
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$post.innerHTML += '<p>' + post.summary.replace(/</g, "<") + '</p>';
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}
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return $post;
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};
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var loadPage = function(p, loadAll) {
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if (loadAll) {
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$posts.el.innerHTML = '';
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}
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var startPost = posts.length - 1 - (loadAll ? 0 : ((p-1)*postsPerPage));
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var endPost = posts.length - 1 - (p*postsPerPage);
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for (var i=startPost; i>=0 && i>endPost; i--) {
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$posts.el.appendChild(createPostEl(posts[i]));
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}
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if (loadAll) {
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if (p < pages) {
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$posts.el.appendChild(createMorePostsEl());
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}
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} else {
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var $moreEl = document.getElementById('more-posts');
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$moreEl.parentNode.removeChild($moreEl);
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}
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try {
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postsLoaded(posts.length);
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} catch (e) {}
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};
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var getPageNum = function(url) {
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var hash;
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if (url) {
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hash = url.substr(url.indexOf('#')+1);
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} else {
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hash = window.location.hash.substr(1);
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}
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var page = hash || 1;
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page = parseInt(page);
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if (isNaN(page)) {
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page = 1;
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}
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return page;
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};
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var postsPerPage = 10;
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var pages = 0;
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var page = getPageNum();
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window.addEventListener('hashchange', function(e) {
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var newPage = getPageNum();
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var didPageIncrement = newPage == getPageNum(e.oldURL) + 1;
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loadPage(newPage, !didPageIncrement);
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});
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var deletePost = function(postID, token, callback) {
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deleting = true;
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var $delBtn = document.getElementById('post-' + postID).getElementsByClassName('delete action')[0];
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$delBtn.innerHTML = '...';
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var http = new XMLHttpRequest();
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var url = "/api/posts/" + postID + (typeof token !== 'undefined' ? "?token=" + encodeURIComponent(token) : '');
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http.open("DELETE", url, true);
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http.onreadystatechange = function() {
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if (http.readyState == 4) {
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deleting = false;
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if (http.status == 204 || http.status == 404) {
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for (var i=0; i<posts.length; i++) {
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if (posts[i].id == postID) {
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// TODO: use this return value, along will full content, for restoring post
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posts.splice(i, 1);
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break;
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}
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}
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H.set('posts', JSON.stringify(posts));
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callback();
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} else if (http.status == 409) {
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$delBtn.innerHTML = 'delete';
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alert("Post is synced to another account. Delete the post from that account instead.");
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// TODO: show "remove" button instead of "delete" now
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// Persist that state.
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// Have it remove the post locally only.
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} else {
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$delBtn.innerHTML = 'delete';
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alert("Failed to delete. Please try again.");
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}
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}
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}
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http.send();
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};
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var hasWritten = H.get('lastDoc', '') !== '';
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var displayNoPosts = function() {
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if (auth) {
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$posts.el.innerHTML = '';
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return;
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}
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var cta = '<a href="/pad">Create a post</a> and it\'ll appear here.';
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if (hasWritten) {
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cta = '<a href="/pad">Finish your post</a> and it\'ll appear here.';
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}
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H.getEl("posts").el.innerHTML = '<p class="status">No posts created yet.</p><p class="status">' + cta + '</p>';
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};
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if (posts.length == 0) {
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displayNoPosts();
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} else {
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initialListPop();
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}
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