discourse/app/assets/javascripts/discourse/views/post_view.js
2013-05-06 19:40:39 +02:00

255 lines
8.5 KiB
JavaScript

/**
This view renders a post.
@class PostView
@extends Discourse.View
@namespace Discourse
@module Discourse
**/
Discourse.PostView = Discourse.View.extend({
classNames: ['topic-post', 'clearfix'],
templateName: 'post',
classNameBindings: ['post.lastPost',
'postTypeClass',
'post.selected',
'post.hidden:hidden',
'post.deleted_at:deleted',
'parentPost:replies-above'],
postBinding: 'content',
// TODO really we should do something cleaner here... this makes it work in debug but feels really messy
screenTrack: (function() {
var parentView = this.get('parentView');
var screenTrack = null;
while (parentView && !screenTrack) {
screenTrack = parentView.get('screenTrack');
parentView = parentView.get('parentView');
}
return screenTrack;
}).property('parentView'),
postTypeClass: (function() {
return this.get('post.post_type') === Discourse.get('site.post_types.moderator_action') ? 'moderator' : 'regular';
}).property('post.post_type'),
// If the cooked content changed, add the quote controls
cookedChanged: (function() {
var postView = this;
Em.run.next(function() { postView.insertQuoteControls(); });
}).observes('post.cooked'),
init: function() {
this._super();
this.set('context', this.get('content'));
},
mouseUp: function(e) {
if (this.get('controller.multiSelect') && (e.metaKey || e.ctrlKey)) {
this.toggleProperty('post.selected');
}
},
selectText: function() {
return this.get('post.selected') ? Em.String.i18n('topic.multi_select.selected', { count: this.get('controller.selectedCount') }) : Em.String.i18n('topic.multi_select.select');
}.property('post.selected', 'controller.selectedCount'),
repliesHidden: function() {
return !this.get('repliesShown');
}.property('repliesShown'),
// Click on the replies button
showReplies: function() {
var postView = this;
if (this.get('repliesShown')) {
this.set('repliesShown', false);
} else {
this.get('post').loadReplies().then(function() {
postView.set('repliesShown', true);
});
}
return false;
},
// Toggle visibility of parent post
toggleParent: function(e) {
var postView = this;
var $parent = this.$('.parent-post');
if (this.get('parentPost')) {
$('nav', $parent).removeClass('toggled');
// Don't animate on touch
if (Discourse.get('touch')) {
$parent.hide();
this.set('parentPost', null);
} else {
$parent.slideUp(function() { postView.set('parentPost', null); });
}
} else {
var post = this.get('post');
this.set('loadingParent', true);
$('nav', $parent).addClass('toggled');
Discourse.Post.loadByPostNumber(post.get('topic_id'), post.get('reply_to_post_number')).then(function(result) {
postView.set('loadingParent', false);
// Give the post a reference back to the topic
result.topic = postView.get('post.topic');
postView.set('parentPost', result);
});
}
return false;
},
updateQuoteElements: function($aside, desc) {
var navLink = "";
var quoteTitle = Em.String.i18n("post.follow_quote");
var postNumber;
if (postNumber = $aside.data('post')) {
// If we have a topic reference
var topicId, topic;
if (topicId = $aside.data('topic')) {
topic = this.get('controller.content');
// If it's the same topic as ours, build the URL from the topic object
if (topic && topic.get('id') === topicId) {
navLink = "<a href='" + (topic.urlForPostNumber(postNumber)) + "' title='" + quoteTitle + "' class='back'></a>";
} else {
// Made up slug should be replaced with canonical URL
navLink = "<a href='" + Discourse.getURL("/t/via-quote/") + topicId + "/" + postNumber + "' title='" + quoteTitle + "' class='quote-other-topic'></a>";
}
} else if (topic = this.get('controller.content')) {
// assume the same topic
navLink = "<a href='" + (topic.urlForPostNumber(postNumber)) + "' title='" + quoteTitle + "' class='back'></a>";
}
}
// Only add the expand/contract control if it's not a full post
var expandContract = "";
if (!$aside.data('full')) {
expandContract = "<i class='icon-" + desc + "' title='" + Em.String.i18n("post.expand_collapse") + "'></i>";
$aside.css('cursor', 'pointer');
}
$('.quote-controls', $aside).html("" + expandContract + navLink);
},
toggleQuote: function($aside) {
$aside.data('expanded',!$aside.data('expanded'));
if ($aside.data('expanded')) {
this.updateQuoteElements($aside, 'chevron-up');
// Show expanded quote
var $blockQuote = $('blockquote', $aside);
$aside.data('original-contents',$blockQuote.html());
var originalText = $blockQuote.text().trim();
$blockQuote.html(Em.String.i18n("loading"));
var topic_id = this.get('post.topic_id');
if ($aside.data('topic')) {
topic_id = $aside.data('topic');
}
Discourse.ajax(Discourse.getURL("/posts/by_number/") + topic_id + "/" + ($aside.data('post'))).then(function (result) {
var parsed = $(result.cooked);
parsed.replaceText(originalText, "<span class='highlighted'>" + originalText + "</span>");
$blockQuote.showHtml(parsed);
});
} else {
// Hide expanded quote
this.updateQuoteElements($aside, 'chevron-down');
$('blockquote', $aside).showHtml($aside.data('original-contents'));
}
return false;
},
// Show how many times links have been clicked on
showLinkCounts: function() {
var postView = this;
var link_counts;
if (link_counts = this.get('post.link_counts')) {
link_counts.each(function(lc) {
if (lc.clicks > 0) {
postView.$(".cooked a[href]").each(function() {
var link = $(this);
if (link.attr('href') === lc.url) {
// don't display badge counts on category badge
if (link.closest('.badge-category').length === 0) {
// nor in oneboxes (except when we force it)
if (link.closest(".onebox-result").length === 0 || link.hasClass("track-link")) {
link.append("<span class='badge badge-notification clicks' title='" + Em.String.i18n("topic_summary.clicks") + "'>" + lc.clicks + "</span>");
}
}
}
});
}
});
}
},
// Add the quote controls to a post
insertQuoteControls: function() {
var postView = this;
return this.$('aside.quote').each(function(i, e) {
var $aside = $(e);
postView.updateQuoteElements($aside, 'chevron-down');
var $title = $('.title', $aside);
// Unless it's a full quote, allow click to expand
if (!($aside.data('full') || $title.data('has-quote-controls'))) {
$title.on('click', function(e) {
if ($(e.target).is('a')) return true;
postView.toggleQuote($aside);
});
$title.data('has-quote-controls', true);
}
});
},
didInsertElement: function(e) {
var $post = this.$();
var post = this.get('post');
var postNumber = post.get('scrollToAfterInsert');
// Do we want to scroll to this post now that we've inserted it?
if (postNumber) {
Discourse.TopicView.scrollTo(this.get('post.topic_id'), postNumber);
if (postNumber === post.get('post_number')) {
var $contents = $('.topic-body .contents', $post);
var originalCol = $contents.css('backgroundColor');
$contents.css({
backgroundColor: "#ffffcc"
}).animate({
backgroundColor: originalCol
}, 2500);
}
}
this.showLinkCounts();
var screenTrack = this.get('screenTrack');
if (screenTrack) {
screenTrack.track(this.$().prop('id'), this.get('post.post_number'));
}
// Add syntax highlighting
Discourse.SyntaxHighlighting.apply($post);
Discourse.Lightbox.apply($post);
// If we're scrolling upwards, adjust the scroll position accordingly
var scrollTo;
if (scrollTo = this.get('post.scrollTo')) {
var newSize = ($(document).height() - scrollTo.height) + scrollTo.top;
$('body').scrollTop(newSize);
$('section.divider').addClass('fade');
}
// Find all the quotes
this.insertQuoteControls();
// be sure that eyeline tracked it
var controller = this.get('controller');
if (controller && controller.postRendered) {
controller.postRendered(post);
}
}
});