var el = e.currentTarget;

    $(el).attr('title', $(el).attr('tt_title'));

};

/**

 * Quick filter widget

 *

 * @param target: filter input target

 * @param nodes: list of nodes in html we want to filter.

 * @param display_element function that takes current node from nodes and

 *    does hide or show based on the node

 */

var q_filter = (function() {

    var _namespace = {};

    var namespace = function (target) {

        if (!(target in _namespace)) {

            _namespace[target] = {};

        }

        return _namespace[target];

    };

    return function (target, $nodes, display_element) {

        var $nodes = $nodes;

        var $q_filter_field = $('#' + target);

        var F = namespace(target);

        $q_filter_field.keyup(function (e) {

            clearTimeout(F.filterTimeout);

            F.filterTimeout = setTimeout(F.updateFilter, 600);

        });

        F.filterTimeout = null;

        F.updateFilter = function () {

            // Reset timeout

            F.filterTimeout = null;

            var obsolete = [];

            var req = $q_filter_field.val().toLowerCase();

            var showing = 0;

            $nodes.each(function () {

                var n = this;

                var target_element = display_element(n);

                if (req && n.innerHTML.toLowerCase().indexOf(req) == -1) {

                    $(target_element).hide();

                }

                else {

                    $(target_element).show();

                    showing += 1;

                }

            });

            $('#repo_count').html(showing);

            /* FIXME: don't hardcode */

        }

    }

})();

/* return jQuery expression with a tr with body in 3rd column and class cls and id named after the body */

var _table_tr = function(cls, body){

    // like: <div class="comment" id="comment-8" line="o92"><div class="comment-wrapp">...

    // except new inlines which are different ...

    var comment_id = ($(body).attr('id') || 'comment-new').split('comment-')[1];

    var tr_id = 'comment-tr-{0}'.format(comment_id);

    return $(('<tr id="{0}" class="{1}">'+

                  '<td class="lineno-inline new-inline"></td>'+

                  '<td class="lineno-inline old-inline"></td>'+

                  '<td>{2}</td>'+

                 '</tr>').format(tr_id, cls, body));

};

/** return jQuery expression with new inline form based on template **/

var _createInlineForm = function(parent_tr, f_path, line) {

    var $tmpl = $('#comment-inline-form-template').html().format(f_path, line);

    var $form = _table_tr('comment-form-inline', $tmpl)

    // create event for hide button

    $form.find('.hide-inline-form').click(function(e) {

        var newtr = e.currentTarget.parentNode.parentNode.parentNode.parentNode.parentNode;

        if($(newtr).next().hasClass('inline-comments-button')){

            $(newtr).next().show();

        }

        $(newtr).remove();

        $(parent_tr).removeClass('form-open');

        $(parent_tr).removeClass('hl-comment');

    });

    return $form

};

/**

 * Inject inline comment for an given TR. This tr should always be a .line .

 * The form will be inject after any comments.

 */

var injectInlineForm = function(tr){

    var $tr = $(tr);

    if(!$tr.hasClass('line')){

        return

    }

    var submit_url = AJAX_COMMENT_URL;

    var $td = $tr.find('.code');

    if($tr.hasClass('form-open') || $tr.hasClass('context') || $td.hasClass('no-comment')){

        return

    }

    $tr.addClass('form-open hl-comment');

    var $node = $tr.parent().parent().parent().find('.full_f_path');

    var f_path = $node.attr('path');

    var lineno = _getLineNo(tr);

    var $form = _createInlineForm(tr, f_path, lineno, submit_url);

    var $parent = $tr;

    while ($parent.next().hasClass('inline-comments')){

        var $parent = $parent.next();

    }

    $form.insertAfter($parent);

    var $overlay = $form.find('.submitting-overlay');

    var $inlineform = $form.find('.inline-form');

    $form.submit(function(e){

        e.preventDefault();

        if(lineno === undefined){

            alert('Error submitting, line ' + lineno + ' not found.');

            return;

        }

        if(f_path === undefined){

            alert('Error submitting, file path ' + f_path + ' not found.');

            return;

        }

        var text = $('#text_'+lineno).val();

        if(text == ""){

            return;

        }

        $overlay.show();

        var success = function(json_data){

            $tr.removeClass('form-open');

            $form.remove();

            _renderInlineComment(json_data);

        };

        var postData = {

                'text': text,

                'f_path': f_path,

                'line': lineno

        };

        ajaxPOST(submit_url, postData, success);

    });

    $('#preview-btn_'+lineno).click(function(e){

        var text = $('#text_'+lineno).val();

        if(!text){

            return

        }

        $('#preview-box_'+lineno).addClass('unloaded');

        $('#preview-box_'+lineno).html(_TM['Loading ...']);

        $('#edit-container_'+lineno).hide();

        $('#edit-btn_'+lineno).show();

        $('#preview-container_'+lineno).show();

        $('#preview-btn_'+lineno).hide();

        var url = pyroutes.url('changeset_comment_preview', {'repo_name': REPO_NAME});

        var post_data = {'text': text};

        ajaxPOST(url, post_data, function(html){

            $('#preview-box_'+lineno).html(html);

            $('#preview-box_'+lineno).removeClass('unloaded');

        })

    })

    $('#edit-btn_'+lineno).click(function(e){

        $('#edit-container_'+lineno).show();

        $('#edit-btn_'+lineno).hide();

        $('#preview-container_'+lineno).hide();

        $('#preview-btn_'+lineno).show();

    })

    setTimeout(function(){

        // callbacks

        tooltip_activate();

        MentionsAutoComplete('text_'+lineno, 'mentions_container_'+lineno,

                             _USERS_AC_DATA, _GROUPS_AC_DATA);

        $('#text_'+lineno).focus();

    },10)

};

var deleteComment = function(comment_id){

    var url = AJAX_COMMENT_DELETE_URL.replace('__COMMENT_ID__',comment_id);

    var postData = {'_method':'delete'};

    var success = function(o){

        var $deleted = $('#comment-tr-'+comment_id);

        var $prev = $deleted.prev('tr');

        $deleted.remove();

        _placeAddButton($prev);

    }

    ajaxPOST(url,postData,success);

}

var _getLineNo = function(tr) {

    var line;

    var o = $(tr).children()[0].id.split('_');

    var n = $(tr).children()[1].id.split('_');

    if (n.length >= 2) {

        line = n[n.length-1];

    } else if (o.length >= 2) {

        line = o[o.length-1];

    }

    return line

};

var _placeAddButton = function($line_tr){

    var $tr = $line_tr;

    while ($tr.next().hasClass('inline-comments')){

        $tr.find('.add-comment').remove();

        $tr = $tr.next();

    }

    $tr.find('.add-comment').remove();

    var label = TRANSLATION_MAP['Add Another Comment'];

    var $html_el = $('<div class="add-comment"><span class="btn btn-mini">{0}</span></div>'.format(label));

    $html_el.click(function(e) {

        injectInlineForm($line_tr);

    });

    $tr.find('.comment').after($html_el);

};

/**

 * Places the inline comment into the changeset block in proper line position

 */

var _placeInline = function(target_id, lineno, html){

    var $td = $("#{0}_{1}".format(target_id, lineno));

    if (!$td.length){

        return false;

    }

    // check if there are comments already !

    var $line_tr = $td.parent(); // the tr

    var $after_tr = $line_tr;

    while ($after_tr.next().hasClass('inline-comments')){

        $after_tr = $after_tr.next();

    }

    // put in the comment at the bottom

    var $tr = _table_tr('inline-comments', html)

    $tr.find('div.comment').addClass('inline-comment');

    $after_tr.after($tr);

    // scan nodes, and attach add button to last one

    _placeAddButton($line_tr);

    return true;

}

/**

 * make a single inline comment and place it inside

 */

var _renderInlineComment = function(json_data){

    var html =  json_data['rendered_text'];

    var lineno = json_data['line_no'];

    var target_id = json_data['target_id'];

    return _placeInline(target_id, lineno, html);

}

/**

 * Iterates over all the inlines, and places them inside proper blocks of data

 */

var renderInlineComments = function(file_comments){

    for (var f in file_comments){

        // holding all comments for a FILE

        var box = file_comments[f];

        var target_id = $(box).attr('target_id');

        // actual comments with line numbers

        var comments = box.children;

        var obsolete_comments = [];

        for(var i=0; i<comments.length; i++){

            var data = {

                'rendered_text': comments[i].outerHTML,

                'line_no': $(comments[i]).attr('line'),

                'target_id': target_id

            }

            if (_renderInlineComment(data)) {

                obsolete_comments.push(comments[i]);

                $(comments[i]).hide();

            }else{

                var txt = document.createTextNode(

                        "Comment to " + YUD.getAttribute(comments[i].parentNode,'path') +

                        " line " + data.line_no +

                        " which is outside the diff context:");

                comments[i].insertBefore(txt, comments[i].firstChild);

            }

        }

        // now remove all the obsolete comments that have been copied to their

        // respective locations.

        for (var i=0; i < obsolete_comments.length; i++) {

            obsolete_comments[i].parentNode.removeChild(obsolete_comments[i]);

        }

        $(box).show();

    }

}

/**

 * Double link comments

 */

var linkInlineComments = function(firstlinks, comments){

    var $comments = $(comments);

    if ($comments.length > 0) {

        $(firstlinks).html('<a href="#{0}">First comment</a>'.format($comments.attr('id')));

    }

    if ($comments.length <= 1) {

        return;

    }

    $comments.each(function(i, e){

            var prev = '';

            if (i > 0){

                var prev_anchor = YUD.getAttribute(comments.item(i-1),'id');

                prev = '<a href="#{0}">Previous comment</a>'.format(prev_anchor);

            }

            var next = '';

            if (i+1 < comments.length){

                var next_anchor = YUD.getAttribute(comments.item(i+1),'id');

                next = '<a href="#{0}">Next comment</a>'.format(next_anchor);

            }

            var $div = $(('<div class="prev-next-comment">'+

                          '<div class="prev-comment">{0}</div>'+

                          '<div class="next-comment">{1}</div>').format(prev, next));

            $div.prependTo(this);

        });

}

/* activate files.html stuff */

var fileBrowserListeners = function(current_url, node_list_url, url_base){

    var current_url_branch = "?branch=__BRANCH__";

    $('#stay_at_branch').on('click',function(e){

        if(e.currentTarget.checked){

            var uri = current_url_branch;

            uri = uri.replace('__BRANCH__',e.currentTarget.value);

            window.location = uri;

        }

        else{

            window.location = current_url;

        }

    })

    var $node_filter = $('#node_filter');

    var filterTimeout = null;

    var nodes = null;

    var initFilter = function(){

        $('#node_filter_box_loading').show();

        $('#search_activate_id').hide();

        $('#add_node_id').hide();

        $.ajax({url: node_list_url, headers: {'X-PARTIAL-XHR': '1'}, cache: false})

            .done(function(json) {

                    nodes = json.nodes;

                    $('#node_filter_box_loading').hide();

                    $('#node_filter_box').show();

                    $node_filter.focus();

                    if($node_filter.hasClass('init')){

                        $node_filter.val('');

                        $node_filter.removeClass('init');

                    }

                })

            .fail(function() {

                    console.log('failed to load');

                })

        ;

    }

    var updateFilter = function(e) {

        return function(){

            // Reset timeout

            filterTimeout = null;

            var query = e.currentTarget.value.toLowerCase();

            var match = [];

            var matches = 0;

            var matches_max = 20;

            if (query != ""){

                for(var i=0;i<nodes.length;i++){

                    var pos = nodes[i].name.toLowerCase().indexOf(query)

                    if(query && pos != -1){