mirror of
https://github.com/samuelclay/NewsBlur.git
synced 2025-11-01 09:09:51 +00:00
218 lines
No EOL
7.9 KiB
JavaScript
218 lines
No EOL
7.9 KiB
JavaScript
NEWSBLUR.Views.StoryTitlesView = Backbone.View.extend({
|
|
|
|
el: '.NB-story-titles',
|
|
|
|
events: {
|
|
"click .NB-feed-story-premium-only a" : function(e) {
|
|
e.preventDefault();
|
|
NEWSBLUR.reader.open_feedchooser_modal();
|
|
}
|
|
},
|
|
|
|
initialize: function() {
|
|
_.bindAll(this, 'scroll');
|
|
this.collection.bind('reset', this.render, this);
|
|
this.collection.bind('add', this.add, this);
|
|
this.collection.bind('no_more_stories', this.check_premium_river, this);
|
|
NEWSBLUR.reader.$s.$story_titles.scroll(this.scroll);
|
|
},
|
|
|
|
// ==========
|
|
// = Render =
|
|
// ==========
|
|
|
|
render: function() {
|
|
NEWSBLUR.reader.$s.$story_titles.scrollTop(0);
|
|
var collection = this.collection;
|
|
var $stories = this.collection.map(function(story) {
|
|
return new NEWSBLUR.Views.StoryTitleView({
|
|
model: story,
|
|
collection: collection
|
|
}).render().el;
|
|
});
|
|
this.$el.html($stories);
|
|
this.end_loading();
|
|
this.fill_out();
|
|
},
|
|
|
|
add: function(options) {
|
|
var collection = this.collection;
|
|
if (options.added) {
|
|
var $stories = _.compact(_.map(this.collection.models.slice(-1 * options.added), function(story) {
|
|
if (story.story_title_view) return;
|
|
return new NEWSBLUR.Views.StoryTitleView({
|
|
model: story,
|
|
collection: collection
|
|
}).render().el;
|
|
}));
|
|
this.$el.append($stories);
|
|
}
|
|
this.end_loading();
|
|
this.fill_out();
|
|
},
|
|
|
|
append_river_premium_only_notification: function() {
|
|
var $notice = $.make('div', { className: 'NB-feed-story-premium-only' }, [
|
|
$.make('div', { className: 'NB-feed-story-premium-only-divider'}),
|
|
$.make('div', { className: 'NB-feed-story-premium-only-text'}, [
|
|
'The full River of News is a ',
|
|
$.make('a', { href: '#', className: 'NB-splash-link' }, 'premium feature'),
|
|
'.'
|
|
])
|
|
]);
|
|
this.$('.NB-feed-story-premium-only').remove();
|
|
this.$el.append($notice);
|
|
},
|
|
|
|
// ===========
|
|
// = Actions =
|
|
// ===========
|
|
|
|
fill_out: function(options) {
|
|
this.snap_back_scroll_position();
|
|
|
|
if (NEWSBLUR.assets.flags['no_more_stories'] || !NEWSBLUR.assets.stories.length) {
|
|
return;
|
|
}
|
|
|
|
options = options || {};
|
|
var $last = this.$('.NB-story-title:visible:last');
|
|
var container_height = NEWSBLUR.reader.$s.$story_titles.height();
|
|
|
|
if (NEWSBLUR.reader.counts['page_fill_outs'] < NEWSBLUR.reader.constants.FILL_OUT_PAGES &&
|
|
!NEWSBLUR.assets.flags['no_more_stories']) {
|
|
// NEWSBLUR.log(["fill out", $last.length && $last.position().top, container_height, $last.length, NEWSBLUR.reader.$s.$story_titles.scrollTop()]);
|
|
NEWSBLUR.reader.counts['page_fill_outs'] += 1;
|
|
_.delay(_.bind(function() {
|
|
this.scroll();
|
|
}, this), 10);
|
|
} else {
|
|
this.show_no_more_stories();
|
|
}
|
|
},
|
|
|
|
show_loading: function(options) {
|
|
if (NEWSBLUR.assets.flags['no_more_stories']) return;
|
|
|
|
var $story_titles = NEWSBLUR.reader.$s.$story_titles;
|
|
this.$('.NB-end-line').remove();
|
|
var $endline = $.make('div', { className: "NB-end-line NB-short" });
|
|
$endline.css({'background': '#E1EBFF'});
|
|
$story_titles.append($endline);
|
|
|
|
$endline.animate({'backgroundColor': '#5C89C9'}, {'duration': 650})
|
|
.animate({'backgroundColor': '#E1EBFF'}, 1050);
|
|
this.feed_stories_loading = setInterval(function() {
|
|
$endline.animate({'backgroundColor': '#5C89C9'}, {'duration': 650})
|
|
.animate({'backgroundColor': '#E1EBFF'}, 1050);
|
|
}, 1500);
|
|
|
|
if (options.show_loading) {
|
|
this.pre_load_page_scroll_position = $('#story_titles').scrollTop();
|
|
if (this.pre_load_page_scroll_position > 0) {
|
|
this.pre_load_page_scroll_position += $endline.outerHeight();
|
|
}
|
|
$story_titles.scrollTo($endline, {
|
|
duration: 0,
|
|
axis: 'y',
|
|
easing: 'easeInOutQuint',
|
|
offset: 0,
|
|
queue: false
|
|
});
|
|
this.post_load_page_scroll_position = $('#story_titles').scrollTop();
|
|
} else {
|
|
this.pre_load_page_scroll_position = null;
|
|
this.post_load_page_scroll_position = null;
|
|
}
|
|
},
|
|
|
|
check_premium_river: function() {
|
|
this.show_no_more_stories();
|
|
this.append_river_premium_only_notification();
|
|
},
|
|
|
|
end_loading: function() {
|
|
var $endbar = NEWSBLUR.reader.$s.$story_titles.find('.NB-end-line');
|
|
$endbar.remove();
|
|
clearInterval(this.feed_stories_loading);
|
|
|
|
if (NEWSBLUR.assets.flags['no_more_stories']) {
|
|
this.show_no_more_stories();
|
|
}
|
|
},
|
|
|
|
show_no_more_stories: function() {
|
|
this.$('.NB-end-line').remove();
|
|
var $end_stories_line = $.make('div', { className: "NB-end-line" }, [
|
|
$.make('div', { className: 'NB-fleuron' })
|
|
]);
|
|
|
|
this.$el.append($end_stories_line);
|
|
},
|
|
|
|
snap_back_scroll_position: function() {
|
|
var $story_titles = NEWSBLUR.reader.$s.$story_titles;
|
|
if (this.post_load_page_scroll_position == $story_titles.scrollTop() &&
|
|
this.pre_load_page_scroll_position != null &&
|
|
!NEWSBLUR.reader.flags['select_story_in_feed']) {
|
|
$story_titles.scrollTo(this.pre_load_page_scroll_position, {
|
|
duration: 0,
|
|
axis: 'y',
|
|
offset: 0,
|
|
queue: false
|
|
});
|
|
}
|
|
},
|
|
|
|
// ============
|
|
// = Bindings =
|
|
// ============
|
|
|
|
scroll_to_selected_story: function(story, options) {
|
|
options = options || {};
|
|
var story_title_view = (story && story.story_title_view) ||
|
|
(this.collection.active_story && this.collection.active_story.story_title_view);
|
|
if (!story_title_view) return;
|
|
|
|
var story_title_visisble = NEWSBLUR.reader.$s.$story_titles.isScrollVisible(story_title_view.$el);
|
|
if (!story_title_visisble || options.force ||
|
|
NEWSBLUR.assets.preference('story_layout') == 'list') {
|
|
var container_offset = NEWSBLUR.reader.$s.$story_titles.position().top;
|
|
var scroll = story_title_view.$el.position().top;
|
|
var container = NEWSBLUR.reader.$s.$story_titles.scrollTop();
|
|
var height = NEWSBLUR.reader.$s.$story_titles.outerHeight();
|
|
var position = scroll+container-height/5;
|
|
|
|
if (NEWSBLUR.assets.preference('story_layout') == 'list') {
|
|
position = scroll+container;
|
|
}
|
|
|
|
NEWSBLUR.reader.$s.$story_titles.scrollTo(position, {
|
|
duration: NEWSBLUR.assets.preference('animations') ? 260 : 0,
|
|
queue: false
|
|
});
|
|
}
|
|
},
|
|
|
|
// ==========
|
|
// = Events =
|
|
// ==========
|
|
|
|
scroll: function() {
|
|
if (NEWSBLUR.assets.flags['no_more_stories'] || NEWSBLUR.reader.flags['opening_feed']) {
|
|
return;
|
|
}
|
|
|
|
var $story_titles = NEWSBLUR.reader.$s.$story_titles;
|
|
var container_offset = $story_titles.position().top;
|
|
var visible_height = $story_titles.height();
|
|
var scroll_y = $story_titles.scrollTop();
|
|
var total_height = this.$el.outerHeight(true) + NEWSBLUR.reader.$s.$feedbar.outerHeight(true);
|
|
|
|
// console.log(["scroll titles", container_offset, visible_height, scroll_y, total_height]);
|
|
if (visible_height + scroll_y >= total_height) {
|
|
NEWSBLUR.reader.load_page_of_feed_stories();
|
|
}
|
|
}
|
|
|
|
}); |