mirror of
https://github.com/samuelclay/NewsBlur.git
synced 2025-09-18 21:50:56 +00:00
271 lines
No EOL
10 KiB
JavaScript
271 lines
No EOL
10 KiB
JavaScript
NEWSBLUR.Views.StoryTitlesView = Backbone.View.extend({
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el: '.NB-story-titles',
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events: {
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"click .NB-feed-story-premium-only a" : function(e) {
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e.preventDefault();
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NEWSBLUR.reader.open_feedchooser_modal();
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}
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},
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initialize: function() {
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_.bindAll(this, 'scroll');
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this.collection.bind('reset', this.render, this);
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this.collection.bind('add', this.add, this);
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this.collection.bind('no_more_stories', this.check_premium_river, this);
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this.collection.bind('no_more_stories', this.check_premium_search, this);
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NEWSBLUR.reader.$s.$story_titles.scroll(this.scroll);
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},
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// ==========
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// = Render =
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// ==========
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render: function() {
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NEWSBLUR.reader.$s.$story_titles.scrollTop(0);
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var collection = this.collection;
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var $stories = this.collection.map(function(story) {
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return new NEWSBLUR.Views.StoryTitleView({
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model: story,
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collection: collection
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}).render().el;
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});
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this.$el.html($stories);
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this.end_loading();
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this.fill_out();
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},
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add: function(options) {
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var collection = this.collection;
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if (options.added) {
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var $stories = _.compact(_.map(this.collection.models.slice(-1 * options.added), function(story) {
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if (story.story_title_view) return;
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return new NEWSBLUR.Views.StoryTitleView({
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model: story,
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collection: collection
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}).render().el;
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}));
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this.$el.append($stories);
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}
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this.end_loading();
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this.fill_out();
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},
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append_river_premium_only_notification: function() {
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var message = [
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'The full River of News is a ',
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$.make('a', { href: '#', className: 'NB-splash-link' }, 'premium feature'),
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'.'
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];
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if (NEWSBLUR.reader.flags['starred_view']) {
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message = [
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'Reading saved stories by tag is a ',
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$.make('a', { href: '#', className: 'NB-splash-link' }, 'premium feature'),
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'.'
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];
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}
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var $notice = $.make('div', { className: 'NB-feed-story-premium-only' }, [
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$.make('div', { className: 'NB-feed-story-premium-only-text'}, message)
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]);
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this.$('.NB-feed-story-premium-only').remove();
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this.$(".NB-end-line").append($notice);
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},
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append_search_premium_only_notification: function() {
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var $notice = $.make('div', { className: 'NB-feed-story-premium-only' }, [
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$.make('div', { className: 'NB-feed-story-premium-only-text'}, [
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'Search is a ',
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$.make('a', { href: '#', className: 'NB-splash-link' }, 'premium feature'),
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'.'
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])
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]);
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this.$('.NB-feed-story-premium-only').remove();
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this.$(".NB-end-line").append($notice);
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},
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// ===========
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// = Actions =
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// ===========
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fill_out: function(options) {
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this.snap_back_scroll_position();
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if (NEWSBLUR.assets.flags['no_more_stories'] ||
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!NEWSBLUR.assets.stories.length ||
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NEWSBLUR.reader.flags.story_titles_closed) {
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return;
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}
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options = options || {};
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if (NEWSBLUR.reader.counts['page_fill_outs'] < NEWSBLUR.reader.constants.FILL_OUT_PAGES &&
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!NEWSBLUR.assets.flags['no_more_stories']) {
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// var $last = this.$('.NB-story-title:visible:last');
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// var container_height = NEWSBLUR.reader.$s.$story_titles.height();
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// NEWSBLUR.log(["fill out", $last.length && $last.position().top, container_height, $last.length, NEWSBLUR.reader.$s.$story_titles.scrollTop()]);
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NEWSBLUR.reader.counts['page_fill_outs'] += 1;
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_.delay(_.bind(function() {
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this.scroll();
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}, this), 10);
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} else {
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this.show_no_more_stories();
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}
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},
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show_loading: function(options) {
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options = options || {};
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if (NEWSBLUR.assets.flags['no_more_stories']) return;
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var $story_titles = NEWSBLUR.reader.$s.$story_titles;
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this.$('.NB-end-line').remove();
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var $endline = $.make('div', { className: "NB-end-line NB-short" });
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$endline.css({'background': '#E1EBFF'});
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$story_titles.append($endline);
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$endline.animate({'backgroundColor': '#5C89C9'}, {'duration': 650})
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.animate({'backgroundColor': '#E1EBFF'}, 1050);
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this.feed_stories_loading = setInterval(function() {
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$endline.animate({'backgroundColor': '#5C89C9'}, {'duration': 650})
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.animate({'backgroundColor': '#E1EBFF'}, 1050);
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}, 1700);
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if (options.scroll_to_loadbar) {
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this.pre_load_page_scroll_position = $('#story_titles').scrollTop();
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if (this.pre_load_page_scroll_position > 0) {
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this.pre_load_page_scroll_position += $endline.outerHeight();
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}
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$story_titles.stop().scrollTo($endline, {
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duration: 0,
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axis: 'y',
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easing: 'easeInOutQuint',
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offset: 0,
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queue: false
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});
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this.post_load_page_scroll_position = $('#story_titles').scrollTop();
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} else {
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this.pre_load_page_scroll_position = null;
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this.post_load_page_scroll_position = null;
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}
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},
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check_premium_river: function() {
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if (!NEWSBLUR.Globals.is_premium &&
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NEWSBLUR.Globals.is_authenticated &&
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NEWSBLUR.reader.flags['river_view']) {
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this.show_no_more_stories();
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this.append_river_premium_only_notification();
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} else if (NEWSBLUR.assets.flags['no_more_stories']) {
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this.show_no_more_stories();
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}
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},
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check_premium_search: function() {
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if (!NEWSBLUR.Globals.is_premium &&
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NEWSBLUR.reader.flags.search) {
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this.show_no_more_stories();
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this.append_search_premium_only_notification();
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}
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},
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end_loading: function() {
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var $endbar = NEWSBLUR.reader.$s.$story_titles.find('.NB-end-line');
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$endbar.remove();
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clearInterval(this.feed_stories_loading);
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if (NEWSBLUR.assets.flags['no_more_stories']) {
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this.show_no_more_stories();
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}
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},
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show_no_more_stories: function() {
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this.$('.NB-end-line').remove();
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var $end_stories_line = $.make('div', { className: "NB-end-line" }, [
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$.make('div', { className: 'NB-fleuron' })
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]);
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if (NEWSBLUR.assets.preference('story_layout') == 'list') {
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var pane_height = NEWSBLUR.reader.$s.$story_titles.height();
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var endbar_height = 20;
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var last_story_height = 280;
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endbar_height = pane_height - last_story_height;
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if (endbar_height <= 20) endbar_height = 20;
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var empty_space = pane_height - last_story_height - endbar_height;
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if (empty_space > 0) endbar_height += empty_space + 1;
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endbar_height /= 2; // Splitting padding between top and bottom
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$end_stories_line.css('paddingBottom', endbar_height);
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$end_stories_line.css('paddingTop', endbar_height);
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// console.log(["endbar height list", endbar_height, empty_space, pane_height, last_story_height]);
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}
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this.$el.append($end_stories_line);
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},
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snap_back_scroll_position: function() {
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var $story_titles = NEWSBLUR.reader.$s.$story_titles;
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if (this.post_load_page_scroll_position == $story_titles.scrollTop() &&
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this.pre_load_page_scroll_position != null &&
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!NEWSBLUR.reader.flags['select_story_in_feed']) {
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$story_titles.stop().scrollTo(this.pre_load_page_scroll_position, {
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duration: 0,
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axis: 'y',
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offset: 0,
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queue: false
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});
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}
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},
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// ============
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// = Bindings =
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// ============
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scroll_to_selected_story: function(story, options) {
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options = options || {};
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var story_title_view = (story && story.story_title_view) ||
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(this.collection.active_story && this.collection.active_story.story_title_view);
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if (!story_title_view) return;
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var story_title_visisble = NEWSBLUR.reader.$s.$story_titles.isScrollVisible(story_title_view.$el);
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if (!story_title_visisble || options.force ||
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NEWSBLUR.assets.preference('story_layout') == 'list') {
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var container_offset = NEWSBLUR.reader.$s.$story_titles.position().top;
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var scroll = story_title_view.$el.position().top;
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var container = NEWSBLUR.reader.$s.$story_titles.scrollTop();
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var height = NEWSBLUR.reader.$s.$story_titles.outerHeight();
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var position = scroll+container-height/5;
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if (NEWSBLUR.assets.preference('story_layout') == 'list') {
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position = scroll+container;
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}
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NEWSBLUR.reader.$s.$story_titles.stop().scrollTo(position, {
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duration: NEWSBLUR.assets.preference('animations') ? 260 : 0,
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queue: false
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});
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}
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},
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// ==========
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// = Events =
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// ==========
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scroll: function() {
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if (NEWSBLUR.assets.flags['no_more_stories'] || NEWSBLUR.reader.flags['opening_feed']) {
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return;
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}
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var $story_titles = NEWSBLUR.reader.$s.$story_titles;
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var container_offset = $story_titles.position().top;
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var visible_height = $story_titles.height() * 2;
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var scroll_y = $story_titles.scrollTop();
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var total_height = this.$el.outerHeight() + NEWSBLUR.reader.$s.$feedbar.innerHeight();
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// console.log(["scroll titles", container_offset, visible_height, scroll_y, total_height]);
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if (visible_height + scroll_y >= total_height) {
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NEWSBLUR.reader.load_page_of_feed_stories({scroll_to_loadbar: false});
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}
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}
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}); |