(function($) {
$.fn.autogrow = function(){
return this.each(function(){
var textarea = this;
$.fn.autogrow.resize(textarea);
$(textarea)
.focus(function() {
textarea.interval = setInterval(function() {
$.fn.autogrow.resize(textarea);
}, 500);
})
.blur(function() {
clearInterval(textarea.interval);
});
});
};
$.fn.autogrow.resize = function(textarea) {
var lineHeight = parseInt($(textarea).css('line-height'), 10);
var lines = textarea.value.split('\n');
var columns = textarea.cols;
var lineCount = 0;
$.each(lines, function() {
lineCount += Math.ceil(this.length / columns) || 1;
});
var height = lineHeight * (lineCount + 1);
$(textarea).css('height', height);
};
})(jQuery);
(function($) {
var comp, by;
function init() {
initEvents();
initComparator();
}
function initEvents() {
$('a.comment_close').live("click", function(event) {
hide($(this).attr('id').substring(2));
return false;
});
$('.vote').live("click", function() {
handleVote($(this));
return false;
});
$('a.reply').live("click", function() {
openReply($(this).attr('id').substring(2));
return false;
});
$('a.close_reply').live("click", function() {
closeReply($(this).attr('id').substring(2));
return false;
});
$('a.sort_option').live("click", function(event) {
handleReSort($(this));
return false;
});
$('a.show_proposal').live("click", function() {
showProposal($(this).attr('id').substring(2));
return false;
});
$('a.hide_proposal').live("click", function() {
hideProposal($(this).attr('id').substring(2));
return false;
});
$('a.show_propose_change').live("click", function() {
showProposeChange($(this).attr('id').substring(2));
return false;
});
$('a.hide_propose_change').live("click", function() {
hideProposeChange($(this).attr('id').substring(2));
return false;
});
$('a.accept_comment').live("click", function() {
acceptComment($(this).attr('id').substring(2));
return false;
});
$('a.reject_comment').live("click", function() {
rejectComment($(this).attr('id').substring(2));
return false;
});
$('a.delete_comment').live("click", function() {
deleteComment($(this).attr('id').substring(2));
return false;
});
}
/*
Set comp, which is a comparator function used for sorting and
inserting comments into the list.
*/
function setComparator() {
// If the first three letters are "asc", sort in ascending order
// and remove the prefix.
if (by.substring(0,3) == 'asc') {
var i = by.substring(3);
comp = function(a, b) { return a[i] - b[i]; };
} else {
// Otherwise sort in descending order.
comp = function(a, b) { return b[by] - a[by]; };
}
// Reset link styles and format the selected sort option.
$('a.sel').attr('href', '#').removeClass('sel');
$('a.' + by).removeAttr('href').addClass('sel');
}
/*
Create a comp function. If the user has preferences stored in
the sortBy cookie, use those, otherwise use the default.
*/
function initComparator() {
by = 'rating'; // Default to sort by rating.
// If the sortBy cookie is set, use that instead.
if (document.cookie.length > 0) {
var start = document.cookie.indexOf('sortBy=');
if (start != -1) {
start = start + 7;
var end = document.cookie.indexOf(";", start);
if (end == -1) {
end = document.cookie.length;
by = unescape(document.cookie.substring(start, end));
}
}
}
setComparator();
}
/*
Show a comment div.
*/
function show(id) {
$('#ao' + id).hide();
$('#ah' + id).show();
var context = $.extend({id: id}, opts);
var popup = $(renderTemplate(popupTemplate, context)).hide();
popup.find('textarea[name="proposal"]').hide();
popup.find('a.' + by).addClass('sel');
var form = popup.find('#cf' + id);
form.submit(function(event) {
event.preventDefault();
addComment(form);
});
$('#s' + id).after(popup);
popup.slideDown('fast', function() {
getComments(id);
});
}
/*
Hide a comment div.
*/
function hide(id) {
$('#ah' + id).hide();
$('#ao' + id).show();
var div = $('#sc' + id);
div.slideUp('fast', function() {
div.remove();
});
}
/*
Perform an ajax request to get comments for a node
and insert the comments into the comments tree.
*/
function getComments(id) {
$.ajax({
type: 'GET',
url: opts.getCommentsURL,
data: {node: id},
success: function(data, textStatus, request) {
var ul = $('#cl' + id);
var speed = 100;
$('#cf' + id)
.find('textarea[name="proposal"]')
.data('source', data.source);
if (data.comments.length === 0) {
ul.html('<li>No comments yet.</li>');
ul.data('empty', true);
} else {
// If there are comments, sort them and put them in the list.
var comments = sortComments(data.comments);
speed = data.comments.length * 100;
appendComments(comments, ul);
ul.data('empty', false);
}
$('#cn' + id).slideUp(speed + 200);
ul.slideDown(speed);
},
error: function(request, textStatus, error) {
showError('Oops, there was a problem retrieving the comments.');
},
dataType: 'json'
});
}
/*
Add a comment via ajax and insert the comment into the comment tree.
*/
function addComment(form) {
// Disable the form that is being submitted.
form.find('textarea,input').attr('disabled', 'disabled');
var node_id = form.find('input[name="node"]').val();
var parent_id = form.find('input[name="parent"]').val();
// Send the comment to the server.
$.ajax({
type: "POST",
url: opts.addCommentURL,
dataType: 'json',
data: {
node: node_id,
parent: parent_id,
text: form.find('textarea[name="comment"]').val(),
proposal: form.find('textarea[name="proposal"]').val()
},
success: function(data, textStatus, error) {
// Reset the form.
if (node_id) {
hideProposeChange(node_id);
}
form.find('textarea')
.val('')
.add(form.find('input'))
.removeAttr('disabled');
var ul = $('#cl' + (node_id || parent_id));
if (ul.data('empty')) {
$(ul).empty();
ul.data('empty', false);
}
insertComment(data.comment);
},
error: function(request, textStatus, error) {
form.find('textarea,input').removeAttr('disabled');
showError('Oops, there was a problem adding the comment.');
}
});
}
/*
Recursively append comments to the main comment list and children
lists, creating the comment tree.
*/
function appendComments(comments, ul) {
$.each(comments, function() {
var div = createCommentDiv(this);
ul.append($(document.createElement('li')).html(div));
appendComments(this.children, div.find('ul.children'));
// To avoid stagnating data, don't store the comments children in data.
this.children = null;
div.data('comment', this);
});
}
/*
After adding a new comment, it must be inserted in the correct
location in the comment tree.
*/
function insertComment(comment) {
var div = createCommentDiv(comment);
// To avoid stagnating data, don't store the comments children in data.
comment.children = null;
div.data('comment', comment);
var ul = $('#cl' + (comment.node || comment.parent));
var siblings = getChildren(ul);
var li = $(document.createElement('li'));
li.hide();
// Determine where in the parents children list to insert this comment.
for(i=0; i < siblings.length; i++) {
if (comp(comment, siblings[i]) <= 0) {
$('#cd' + siblings[i].id)
.parent()
.before(li.html(div));
li.slideDown('fast');
return;
}
}
// If we get here, this comment rates lower than all the others,
// or it is the only comment in the list.
ul.append(li.html(div));
li.slideDown('fast');
}
function acceptComment(id) {
$.ajax({
type: 'POST',
url: opts.acceptCommentURL,
data: {id: id},
success: function(data, textStatus, request) {
$('#cm' + id).fadeOut('fast');
},
error: function(request, textStatus, error) {
showError("Oops, there was a problem accepting the comment.");
}
});
}
function rejectComment(id) {
$.ajax({
type: 'POST',
url: opts.rejectCommentURL,
data: {id: id},
success: function(data, textStatus, request) {
var div = $('#cd' + id);
div.slideUp('fast', function() {
div.remove();
});
},
error: function(request, textStatus, error) {
showError("Oops, there was a problem rejecting the comment.");
}
});
}
function deleteComment(id) {
$.ajax({
type: 'POST',
url: opts.deleteCommentURL,
data: {id: id},
success: function(data, textStatus, request) {
var div = $('#cd' + id);
div
.find('span.user_id:first')
.text('[deleted]').end()
.find('p.comment_text:first')
.text('[deleted]').end()
.find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id +
', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id)
.remove();
var comment = div.data('comment');
comment.username = '[deleted]';
comment.text = '[deleted]';
div.data('comment', comment);
},
error: function(request, textStatus, error) {
showError("Oops, there was a problem deleting the comment.");
}
});
}
function showProposal(id) {
$('#sp' + id).hide();
$('#hp' + id).show();
$('#pr' + id).slideDown('fast');
}
function hideProposal(id) {
$('#hp' + id).hide();
$('#sp' + id).show();
$('#pr' + id).slideUp('fast');
}
function showProposeChange(id) {
$('#pc' + id).hide();
$('#hc' + id).show();
var textarea = $('#pt' + id);
textarea.val(textarea.data('source'));
$.fn.autogrow.resize(textarea[0]);
textarea.slideDown('fast');
}
function hideProposeChange(id) {
$('#hc' + id).hide();
$('#pc' + id).show();
var textarea = $('#pt' + id);
textarea.val('').removeAttr('disabled');
textarea.slideUp('fast');
}
/*
Handle when the user clicks on a sort by link.
*/
function handleReSort(link) {
var classes = link.attr('class').split(/\s+/);
for (var i=0; i<classes.length; i++) {
if (classes[i] != 'sort_option') {
by = classes[i];
}
}
setComparator();
// Save/update the sortBy cookie.
var expiration = new Date();
expiration.setDate(expiration.getDate() + 365);
document.cookie= 'sortBy=' + escape(by) +
';expires=' + expiration.toUTCString();
$('ul.comment_ul').each(function(index, ul) {
var comments = getChildren($(ul), true);
comments = sortComments(comments);
appendComments(comments, $(ul).empty());
});
}
/*
Function to process a vote when a user clicks an arrow.
*/
function handleVote(link) {
if (!opts.voting) {
showError("You'll need to login to vote.");
return;
}
var id = link.attr('id');
// If it is an unvote, the new vote value is 0,
// Otherwise it's 1 for an upvote, or -1 for a downvote.
var value = 0;
if (id.charAt(1) != 'u') {
value = id.charAt(0) == 'u' ? 1 : -1;
}
// The data to be sent to the server.
var d = {
comment_id: id.substring(2),
value: value
};
// Swap the vote and unvote links.
link.hide();
$('#' + id.charAt(0) + (id.charAt(1) == 'u' ? 'v' : 'u') + d.comment_id)
.show();
// The div the comment is displayed in.
var div = $('div#cd' + d.comment_id);
var data = div.data('comment');
// If this is not an unvote, and the other vote arrow has
// already been pressed, unpress it.
if ((d.value !== 0) && (data.vote === d.value * -1)) {
$('#' + (d.value == 1 ? 'd' : 'u') + 'u' + d.comment_id).hide();
$('#' + (d.value == 1 ? 'd' : 'u') + 'v' + d.comment_id).show();
}
// Update the comments rating in the local data.
data.rating += (data.vote === 0) ? d.value : (d.value - data.vote);
data.vote = d.value;
div.data('comment', data);
// Change the rating text.
div.find('.rating:first')
.text(data.rating + ' point' + (data.rating == 1 ? '' : 's'));
// Send the vote information to the server.
$.ajax({
type: "POST",
url: opts.processVoteURL,
data: d,
error: function(request, textStatus, error) {
showError("Oops, there was a problem casting that vote.");
}
});
}
/*
Open a reply form used to reply to an existing comment.
*/
function openReply(id) {
// Swap out the reply link for the hide link
$('#rl' + id).hide();
$('#cr' + id).show();
// Add the reply li to the children ul.
var div = $(renderTemplate(replyTemplate, {id: id})).hide();
$('#cl' + id)
.prepend(div)
// Setup the submit handler for the reply form.
.find('#rf' + id)
.submit(function(event) {
event.preventDefault();
addComment($('#rf' + id));
closeReply(id);
});
div.slideDown('fast');
}
/*
Close the reply form opened with openReply.
*/
function closeReply(id) {
// Remove the reply div from the DOM.
$('#rd' + id).slideUp('fast', function() {
$(this).remove();
});
// Swap out the hide link for the reply link
$('#cr' + id).hide();
$('#rl' + id).show();
}
/*
Recursively sort a tree of comments using the comp comparator.
*/
function sortComments(comments) {
comments.sort(comp);
$.each(comments, function() {
this.children = sortComments(this.children);
});
return comments;
}
/*
Get the children comments from a ul. If recursive is true,
recursively include childrens' children.
*/
function getChildren(ul, recursive) {
var children = [];
ul.children().children("[id^='cd']")
.each(function() {
var comment = $(this).data('comment');
if (recursive) {
comment.children = getChildren($(this).find('#cl' + comment.id), true);
}
children.push(comment);
});
return children;
}
/*
Create a div to display a comment in.
*/
function createCommentDiv(comment) {
// Prettify the comment rating.
comment.pretty_rating = comment.rating + ' point' +
(comment.rating == 1 ? '' : 's');
// Create a div for this comment.
var context = $.extend({}, opts, comment);
var div = $(renderTemplate(commentTemplate, context));
// If the user has voted on this comment, highlight the correct arrow.
if (comment.vote) {
var direction = (comment.vote == 1) ? 'u' : 'd';
div.find('#' + direction + 'v' + comment.id).hide();
div.find('#' + direction + 'u' + comment.id).show();
}
if (comment.text != '[deleted]') {
div.find('a.reply').show();
if (comment.proposal_diff) {
div.find('#sp' + comment.id).show();
}
if (opts.moderator && !comment.displayed) {
div.find('#cm' + comment.id).show();
}
if (opts.moderator || (opts.username == comment.username)) {
div.find('#dc' + comment.id).show();
}
}
return div;
}
/*
A simple template renderer. Placeholders such as <%id%> are replaced
by context['id'] with items being escaped. Placeholders such as <#id#>
are not escaped.
*/
function renderTemplate(template, context) {
var esc = $(document.createElement('div'));
function handle(ph, escape) {
var cur = context;
$.each(ph.split('.'), function() {
cur = cur[this];
});
return escape ? esc.text(cur || "").html() : cur;
}
return template.replace(/<([%#])([\w\.]*)\1>/g, function(){
return handle(arguments[2], arguments[1] == '%' ? true : false);
});
}
function showError(message) {
$(document.createElement('div')).attr({'class': 'popup_error'})
.append($(document.createElement('h1')).text(message))
.appendTo('body')
.fadeIn("slow")
.delay(2000)
.fadeOut("slow");
}
/*
Add a link the user uses to open the comments popup.
*/
$.fn.comment = function() {
return this.each(function() {
var id = $(this).attr('id').substring(1);
var count = COMMENT_METADATA[id];
var title = count + ' comment' + (count == 1 ? '' : 's');
var image = count > 0 ? opts.commentBrightImage : opts.commentImage;
$(this)
.append(
$(document.createElement('a')).attr({
href: '#',
'class': 'sphinx_comment',
id: 'ao' + id
})
.append($(document.createElement('img')).attr({
src: image,
alt: 'comment',
title: title
}))
.click(function(event) {
event.preventDefault();
show($(this).attr('id').substring(2));
})
)
.append(
$(document.createElement('a')).attr({
href: '#',
'class': 'sphinx_comment_close hidden',
id: 'ah' + id
})
.append($(document.createElement('img')).attr({
src: opts.closeCommentImage,
alt: 'close',
title: 'close'
}))
.click(function(event) {
event.preventDefault();
hide($(this).attr('id').substring(2));
})
);
});
};
var opts = jQuery.extend({
processVoteURL: '/process_vote',
addCommentURL: '/add_comment',
getCommentsURL: '/get_comments',
acceptCommentURL: '/accept_comment',
rejectCommentURL: '/reject_comment',
deleteCommentURL: '/delete_comment',
commentImage: '/static/_static/comment.png',
closeCommentImage: '/static/_static/comment-close.png',
loadingImage: '/static/_static/ajax-loader.gif',
commentBrightImage: '/static/_static/comment-bright.png',
upArrow: '/static/_static/up.png',
downArrow: '/static/_static/down.png',
upArrowPressed: '/static/_static/up-pressed.png',
downArrowPressed: '/static/_static/down-pressed.png',
voting: false,
moderator: false
}, COMMENT_OPTIONS);
var replyTemplate = '\
<li>\
<div class="reply_div" id="rd<%id%>">\
<form id="rf<%id%>">\
<textarea name="comment" cols="80"></textarea>\
<input type="submit" value="add reply" />\
<input type="hidden" name="parent" value="<%id%>" />\
<input type="hidden" name="node" value="" />\
</form>\
</div>\
</li>';
var commentTemplate = '\
<div id="cd<%id%>" class="spxcdiv">\
<div class="vote">\
<div class="arrow">\
<a href="#" id="uv<%id%>" class="vote">\
<img src="<%upArrow%>" />\
</a>\
<a href="#" id="uu<%id%>" class="un vote">\
<img src="<%upArrowPressed%>" />\
</a>\
</div>\
<div class="arrow">\
<a href="#" id="dv<%id%>" class="vote">\
<img src="<%downArrow%>" id="da<%id%>" />\
</a>\
<a href="#" id="du<%id%>" class="un vote">\
<img src="<%downArrowPressed%>" />\
</a>\
</div>\
</div>\
<div class="comment_content">\
<p class="tagline comment">\
<span class="user_id"><%username%></span>\
<span class="rating"><%pretty_rating%></span>\
<span class="delta"><%time.delta%></span>\
</p>\
<p class="comment_text comment"><%text%></p>\
<p class="comment_opts comment">\
<a href="#" class="reply hidden" id="rl<%id%>">reply ▹</a>\
<a href="#" class="close_reply" id="cr<%id%>">reply ▿</a>\
<a href="#" id="sp<%id%>" class="show_proposal">\
proposal ▹\
</a>\
<a href="#" id="hp<%id%>" class="hide_proposal">\
proposal ▿\
</a>\
<a href="#" id="dc<%id%>" class="delete_comment hidden">\
delete\
</a>\
<span id="cm<%id%>" class="moderation hidden">\
<a href="#" id="ac<%id%>" class="accept_comment">accept</a>\
<a href="#" id="rc<%id%>" class="reject_comment">reject</a>\
</span>\
</p>\
<pre class="proposal" id="pr<%id%>">\
<#proposal_diff#>\
</pre>\
<ul class="children" id="cl<%id%>"></ul>\
</div>\
<div class="clearleft"></div>\
</div>\
</div>';
var popupTemplate = '\
<div class="sphinx_comments" id="sc<%id%>">\
<h1>Comments</h1>\
<form method="post" id="cf<%id%>" class="comment_form" action="/docs/add_comment">\
<textarea name="comment" cols="80"></textarea>\
<p class="propose_button">\
<a href="#" id="pc<%id%>" class="show_propose_change">\
Propose a change ▹\
</a>\
<a href="#" id="hc<%id%>" class="hide_propose_change">\
Propose a change ▿\
</a>\
</p>\
<textarea name="proposal" id="pt<%id%>" cols="80" spellcheck="false"></textarea>\
<input type="submit" value="add comment" />\
<input type="hidden" name="node" value="<%id%>" />\
<input type="hidden" name="parent" value="" />\
<p class="sort_options">\
Sort by:\
<a href="#" class="sort_option rating">top</a>\
<a href="#" class="sort_option ascage">newest</a>\
<a href="#" class="sort_option age">oldest</a>\
</p>\
</form>\
<h3 id="cn<%id%>">loading comments... <img src="<%loadingImage%>" alt="" /></h3>\
<ul id="cl<%id%>" class="comment_ul"></ul>\
</div>';
$(document).ready(function() {
init();
});
})(jQuery);
$(document).ready(function() {
$('.spxcmt').comment();
/** Highlight search words in search results. */
$("div.context").each(function() {
var params = $.getQueryParameters();
var terms = (params.q) ? params.q[0].split(/\s+/) : [];
var result = $(this);
$.each(terms, function() {
result.highlightText(this.toLowerCase(), 'highlighted');
});
});
});