function allow_template($template)

{

return ($template!='admin');

}

function allow_region($region) {

$allow = false;

switch ($region) {

case 'main':

case 'full':

$allow = true;

break;

}

return $allow;

}

function navigation() {

$request = qa_request_parts();

if ( !empty($request) && is_array($request)) return $request;

}

function output_widget($region, $place, $themeobject, $template, $request, $qa_content) {

$widget_opt = qa_get_options(array(q2a_breadcrumbs_admin::SHOW_HOME , q2a_breadcrumbs_admin::TRUNCATE_LENGTH));

// breadcrumb start

$themeobject->output('<ul class="breadcrumb clearfix">');

if ($widget_opt[q2a_breadcrumbs_admin::SHOW_HOME]) {

$themeobject->output($this->breadcrumb_part(array('type' => 'home')));

}

$themeobject->output($this->create_breadcrumbs($this->navigation(), $qa_content , $widget_opt, $template) );

$themeobject->output('</ul>');

}

function create_breadcrumbs($navs, $qa_content , $widget_opt, $template ) {

$br = "";

if($template == 'not-found'){

$br .=$this->breadcrumb_part(array(

'type' => 'not-found',

'url' => '/',

'text' => qa_lang('breadcrumbs/not_found'),

));

}elseif ($template === 'question') { //if it is a question page

// category is the first priority

$question_page = @$qa_content['q_view'];

$cat = @$question_page['where'];

$tags = @$question_page['q_tags'];

$total_navs = count($navs);

$index = 1 ;

if (!empty($cat)) {

$categoryids = @$qa_content['categoryids'];

if (!empty($categoryids)) {

foreach ($categoryids as $categoryid) {

$category_details = $this->get_cat($categoryid);

if (is_array($category_details) && !empty($category_details)) {

$backpath = $category_details['backpath'];

$text = $category_details['title'];

$url = $this->cat_path($backpath);

$data = array(

'type' => 'cat',

'text' => $text,

'url' => $url,

'index' => $index ,

'total_navs' => $total_navs ,

);

$br .=$this->breadcrumb_part($data);

}

}

$index++ ;

}

}else {

//if question is asked with out any categories

$br .=$this->breadcrumb_part(array(

'type' => 'questions',

'url' => qa_path_html('questions'),

'text' => qa_lang('breadcrumbs/questions'),

'index' => $index++ ,

'total_navs' => $total_navs ,

));

}

if (!empty($qa_content['q_view'])) {

$q_title = !empty($qa_content['q_view']['raw']['title']) ? $qa_content['q_view']['raw']['title'] : '' ;

$q_id = !empty($qa_content['q_view']['raw']['postid']) ? $qa_content['q_view']['raw']['postid'] : '' ;

$trunc_len = $widget_opt[q2a_breadcrumbs_admin::TRUNCATE_LENGTH];

if ($trunc_len <= 0 ) {

$trunc_len = strlen($q_title) ;

}

$br .=$this->breadcrumb_part(array(

'type' => 'questions',

'url' => qa_q_path($q_id, $q_title, true) ,

'text' => $this->truncate( $q_title, $trunc_len ),

'index' => $index ,

'total_navs' => $total_navs ,

'is_question' => true ,

));

}

} else { //for non questions page

if (count($navs) > 0) {

$link = "";

$type = $navs[0];

if (empty($type)) {

return ; //if there is not a single part -- go back from here

}

$translate_this_arr = array("questions","unanswered","tags","tag" ,"users","user", "categories", "ask",'message',"special", 'blocked', 'activity');

$total_navs = count($navs);

$index = 1 ;

if (empty($template) || $template == 'qa') {

$type = 'qa' ;

}

foreach ($navs as $nav) {

$link .= (!!$link) ? "/" . $nav : $nav;

// added this to fix users page bug and tag page bug

$prev_link = $link ;

$link = ($link === "user") ? "users" : $link ;

$link = ($link === "tag") ? "tags" : $link ;

$text = (in_array($nav, $translate_this_arr)) ? qa_lang("breadcrumbs/".$nav) : ucwords($nav) ;

$link = qa_path($link);

if (in_array($template, array('plugin' , 'custom')) && !empty( $qa_content['title'])) {

$text = $qa_content['title'] ;

}else if ($template == 'search') {

$text = qa_lang('breadcrumbs/searching_for') . qa_get('q') ;

$link = qa_self_html() ;

}else if ($template == 'questions') {

$sort = qa_get('sort');

$non_cat = array('','hot','votes','answers','views','questions');

if (!in_array($nav, $non_cat)) {

//then it is showing categories

$category_details = $this->get_cat_from_tags($nav);

$text = $category_details['title'];

}

}else if ($template == 'categories') {

if ($nav !== 'categories') {

//then it is showing categories

$category_details = $this->get_cat_from_tags($nav);

$text = $category_details['title'];

}

}else if ($template == 'tag') {

if ($nav == 'tag' && $index == 1) {

$text = qa_lang('breadcrumbs/tags');

}

}else if ($template == 'qa') {

if ($index >= 1) {

//then it is showing categories

$category_details = $this->get_cat_from_tags($nav);

$text = $category_details['title'];

}

}else if ($template == 'activity') {

if ($index > 1) {

//then it is showing categories

$category_details = $this->get_cat_from_tags($nav);

$text = $category_details['title'];

}

}

$br .= $this->breadcrumb_part(array(

'type' => $type,

'url' => $link ,

'text' => $text,

'nav' => $nav ,

'index' => $index ,

'total_navs' => $total_navs ,

));

// reset the link for next iteration

$link = $prev_link ;

$index++ ;

}

switch ($type) {

case 'unanswered':

$by = qa_get('by');

if (empty($by)) {

$br .= $this->breadcrumb_part(array(

'type' => 'no-ans',

'url' => qa_path($link),

'icon' => "times",

'text' => qa_lang('breadcrumbs/no_ans'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($by === 'selected') {

$br .= $this->breadcrumb_part(array(

'type' => 'no-selected',

'url' => qa_path($link) . '?by=selected',

'icon' => "warning",

'text' => qa_lang('breadcrumbs/no_selected_ans'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($by === 'upvotes') {

$br .= $this->breadcrumb_part(array(

'type' => 'no-upvots',

'url' => qa_path($link) . '?by=upvotes',

'icon' => "external-link",

'text' => qa_lang('breadcrumbs/no_upvoted_ans'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

}

break;

case 'questions':

$sort = qa_get('sort');

if ( $total_navs == 1 ) {

if (empty($sort)) {

$br .= $this->breadcrumb_part(array(

'type' => 'q-sort-recent',

'url' => qa_path($link),

'icon' => "clock-o",

'text' => qa_lang('breadcrumbs/recent_que'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($sort === 'hot') {

$br .= $this->breadcrumb_part(array(

'type' => 'q-sort-hot',

'url' => qa_path($link) . '?sort=hot',

'icon' => "fire",

'text' => qa_lang('breadcrumbs/hot'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($sort === 'votes') {

$br .= $this->breadcrumb_part(array(

'type' => 'q-sort-votes',

'url' => qa_path($link) . '?sort=votes',

'icon' => "thumbs-up",

'text' => qa_lang('breadcrumbs/most_votes'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($sort === 'answers') {

$br .= $this->breadcrumb_part(array(

'type' => 'q-sort-answers',

'url' => qa_path($link) . '?sort=answers',

'icon' => "comments",

'text' => qa_lang('breadcrumbs/most_answers'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($sort === 'views') {

$br .= $this->breadcrumb_part(array(

'type' => 'no-sort-views',

'url' => qa_path($link) . '?sort=views',

'icon' => "eye",

'text' => qa_lang('breadcrumbs/most_views'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

}

}

break ;

case 'updates':

$show = qa_get('show');

if (empty($show)) {

$br .= $this->breadcrumb_part(array(

'type' => 'all-updates',

'url' => qa_path($link),

'icon' => "thumb-tack",

'text' => qa_lang('breadcrumbs/all_my_updates'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($show === 'favorites') {

$br .= $this->breadcrumb_part(array(

'type' => 'favorites',

'url' => qa_path($link) . '?show=favorites',

'icon' => "heart",

'text' => qa_lang('breadcrumbs/my_favorites'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

} else if ($show === 'content') {

$br .= $this->breadcrumb_part(array(

'type' => 'content',

'url' => qa_path($link) . '?show=content',

'icon' => "book",

'text' => qa_lang('breadcrumbs/my_content'),

'index' => $index ,

'total_navs' => ++$total_navs ,

));

}

break;

default:

break;

}

}

}

return $br;

}

function breadcrumb_part($data) {

if (!is_array($data) || empty($data)) {

return;

}

$type = !empty($data['type']) ? $data['type'] : "";

$text = !empty($data['text']) ? $data['text'] : "";

$url = !empty($data['url']) ? $data['url'] : "#";

$index = !empty($data['index']) ? $data['index'] : 1;

$nav = !empty($data['nav']) ? $data['nav'] : 1;

$total_navs = !empty($data['total_navs']) ? $data['total_navs'] : 0 ;

$icon = !empty($data['icon']) ? $data['icon'] : '' ;

$li_template = ami_get_li_template( $type , $index , $total_navs ) ;

$class = "";

$extra_br = "" ;

switch ($type) {

case 'home':

$url = qa_opt('site_url');

$text = qa_lang("breadcrumbs/home");

$class = "class='cs-breadcrumbs-home'";

$icon = "home";

break;

case 'qa':

if ( $index >= 1 ) {

$class = "class='cs-breadcrumbs-qa'";

$icon = "folder-open";

}

break;

case 'login':

if ( $index >= 1 ) {

$class = "class='cs-breadcrumbs-login'";

$icon = "sign-in";

}

break;

case 'register':

if ( $index >= 1 ) {

$class = "class='cs-breadcrumbs-register'";

$icon = "fax";

}

break;

case 'hot':

if ( $index == 1 ) {

$icon = "fire";

$class = "class='cs-breadcrumbs-hot'";

$text = qa_lang("breadcrumbs/hot");

}

break;

case 'activity':

if ($index == 1) {

$class = "class='cs-breadcrumbs-activity'";

$icon = "clock-o";

}else if ( $index > 1 ) {

$class = "class='cs-breadcrumbs-categories'";

$icon = "folder-open";

}

break;

case 'cat':

case 'categories':

$class = "class='cs-breadcrumbs-categories'";

$icon = "folder-open";

break;

case 'q_tag':

case 'tag':

$class = "class='cs-breadcrumbs-tag'";

$icon = "tag";

break;

case 'tags':

$class = "class='cs-breadcrumbs-tags'";

$icon = "tags";

break;

case 'ask':

$class = "class='cs-breadcrumbs-ask'";

$icon = "pied-piper-alt";

break;

case 'unanswered':

$class = "class='cs-breadcrumbs-unanswered'";

$icon = "microphone-slash";

break;

case 'questions':

$is_question = (!empty($data['is_question'])) ? $data['is_question'] : false ;

if ( $index == 1 || $is_question ) {

$class = "class='cs-breadcrumbs-questions'";

$icon = "question";

}else if ( $index > 1 ) {

$class = "class='cs-breadcrumbs-categories'";

$icon = "folder-open";

}

break;

case 'account':

$class = "class='cs-breadcrumbs-account'";

$icon = "briefcase";

break;

case 'search':

$class = "class='cs-breadcrumbs-search'";

$icon = "search";

break;

case 'favorites':

$class = "class='cs-breadcrumbs-favorites'";

$icon = "heart";

break;

case 'not-found':

$class = "class='cs-breadcrumbs-not-found'";

$icon = "unlink";

break;

case 'users':

if ($index == 1) {

if ($total_navs == 1) {

$extra_br .= $this->breadcrumb_part(array(

'type' => 'q-sort-answers',

'icon' => "user",

'text' => qa_lang('breadcrumbs/top_users'),

'index' => ++$index ,

'total_navs' => ++$total_navs ,

));

}

$class = "class='cs-breadcrumbs-users'";

$icon = "group";

}else if ($index == 2){

switch ($nav) {

case 'special':

$class = "class='cs-breadcrumbs-user-special'";

$icon = "user";

break;

case 'blocked':

$class = "class='cs-breadcrumbs-user-blocked'";

$icon = "times";

break;

}

}

break ;

case 'user':

if ($index == 1) {

$class = "class='cs-breadcrumbs-users'";

$icon = "group";

}else if ($index == 2){

$class = "class='cs-breadcrumbs-user'";

$icon = "user";

}else if ($index == 3){

switch ($nav) {

case 'wall':

$class = "class='cs-breadcrumbs-user-wall'";

$icon = "building-o";

break;

case 'answers':

$class = "class='cs-breadcrumbs-user-answers'";

$icon = "comments-o";

break;

case 'questions':

$class = "class='cs-breadcrumbs-user-questions'";

$icon = "question";

break;

case 'activity':

$class = "class='cs-breadcrumbs-user-activity'";

$icon = "clock-o";

break;

default:

$class = "class='cs-breadcrumbs-user'";

$icon = "";

break;

}

}

break;

case 'message':

if ($index == 1) {

$class = "class='cs-breadcrumbs-message'";

$icon = "send";

}else if ($index == 2){

$class = "class='cs-breadcrumbs-user'";

$icon = "user";

}

break;

case 'updates':

if ($index == 1) {

$class = "class='cs-breadcrumbs-message'";

$icon = "bell-o";

}

break;

default:

$class = "class='cs-breadcrumbs-$type'";

break;

}

return strtr($li_template, array(

'{{class}}' => $class,

'{{url}}' => $url,

'{{icon}}' => $this->fa_icon($icon),

'{{text}}' => $text,

)) . $extra_br ;

}

function get_cat($cat_id = "") {

require_once QA_INCLUDE_DIR . "/qa-db-selects.php";

if (!$cat_id)

return;

return (qa_db_select_with_pending(qa_db_full_category_selectspec($cat_id, true)));

}

function get_cat_from_tags($tags) {

require_once QA_INCLUDE_DIR . "/qa-db-selects.php";

if (!$tags)

return;

return (qa_db_select_with_pending($this->db_category_selectspec($tags)));

}

function db_category_selectspec($tags)

{

$identifiersql='tags=$';

return array(

'columns' => array('categoryid', 'parentid', 'title', 'tags', 'qcount', 'content', 'backpath'),

'source' => '^categories WHERE '.$identifiersql,

'arguments' => array($tags),

'single' => 'true',

);

}

function cat_path($categorybackpath){

return qa_path_html(implode('/', array_reverse(explode('/', $categorybackpath))));

}

function truncate($string, $limit, $pad="...") {

if(strlen($string) <= $limit)

return $string;

else{

$text = $string.' ';

$text = substr($text,0,$limit);

$text = substr($text,0,strrpos($text,' '));

return $text.$pad;

}

}

function fa_icon($icon){

return 'fa fa-'.$icon ;

}