Not showing post previews for posts that cannot be found on the page

boards/static/js/refpopup.js

@@ -1,198 +1,111 b''
 function $X(path, root) {
     return document.evaluate(path, root || document, null, 6, null);
 }
 function $x(path, root) {
     return document.evaluate(path, root || document, null, 8, null).singleNodeValue;
 }
 
 function $del(el) {
     if(el) el.parentNode.removeChild(el);
 }
 
 function $each(list, fn) {
     if(!list) return;
     var i = list.snapshotLength;
     if(i > 0) while(i--) fn(list.snapshotItem(i), i);
 }
 
 function addRefLinkPreview(node) {
     $each($X('.//a[starts-with(text(),">>")]', node || document), function(link) {
         link.addEventListener('mouseover', showPostPreview, false);
         link.addEventListener('mouseout', delPostPreview, false);
     });
 }
 
 function showPostPreview(e) {
     var doc = document;
     //ref id
     var pNum = $(this).text().match(/\d+/);
 
     //position
     //var x = e.clientX + (doc.documentElement.scrollLeft || doc.body.scrollLeft) - doc.documentElement.clientLeft + 1;
     //var y = e.clientY + (doc.documentElement.scrollTop || doc.body.scrollTop) - doc.documentElement.clientTop;
 
     var x = e.clientX + (doc.documentElement.scrollLeft || doc.body.scrollLeft) + 2;
     var y = e.clientY + (doc.documentElement.scrollTop || doc.body.scrollTop);
 
     var cln = doc.createElement('div');
     cln.id = 'pstprev_' + pNum;
     cln.className = 'post_preview post';
 
     cln.style.cssText = 'top:' + y + 'px;' + (x < doc.body.clientWidth/2 ? 'left:' + x + 'px' : 'right:' + parseInt(doc.body.clientWidth - x + 1) + 'px');
 
     cln.addEventListener('mouseout', delPostPreview, false);
 
 
     var mkPreview = function(cln, html) {
 
         cln.innerHTML = html;
 
         addRefLinkPreview(cln);
 
         //if(!$x('.//small', cln)) showRefMap(post, p_num, refMap)
     };
 
 
     cln.innerHTML = 'Загрузка...';
 
+    var found = false;
+
     //если пост найден в дереве.
     if($('div[id='+pNum+']').length > 0) {
         var postdata = $('div[id='+pNum+']').html();
 
         //TODO: временно
         //funcInit(postdata);
 
         //make preview
         mkPreview(cln, postdata);
+
+	found = true;
     }
     //ajax api
 //    else {
 //        $.getJSON(mayuri_cfg['board_url']+'api/single/'+pNum)
 //            .success(function(data) {
 //                //post templates
 //                var postdata = makeAjaxPost(data).html();
 //
 //                //TODO: временно
 //                //funcInit(postdata);
 //
 //                //make preview
 //                mkPreview(cln, postdata);
 //
 //            })//if error
 //            .error(function() {
 //                cln.innerHTML = 'Пост не найден.';
 //            });
 //    }
 
     $del(doc.getElementById(cln.id));
 
-    //add preview
-    $('body').append(cln);
+    if (found) {
+        //add preview
+        $('body').append(cln);
+    }
 }
 
 function delPostPreview(e) {
     var el = $x('ancestor-or-self::*[starts-with(@id,"pstprev")]', e.relatedTarget);
     if(!el) $each($X('.//div[starts-with(@id,"pstprev")]'), function(clone) {
         $del(clone)
     });
     else while(el.nextSibling) $del(el.nextSibling);
 }
 
-
-
-
-
-
 function addPreview() {
     $('.post').find('a').each(function() {
         showPostPreview($(this));
     });
 }
-
-function showPreview(node) {
-    node.each(function() {
-        //reflink?
-        if($(this).text().indexOf('>>') == 0) {
-            //add mouseover event
-            $(this).on('mouseover', function(e) {
-                var ref = $(this);
-
-                var doc = document;
-                //ref id
-                var pNum = ref.text().match(/\d+/);
-
-                //position
-                var x = e.clientX + (doc.documentElement.scrollLeft || doc.body.scrollLeft) + 2;
-                var y = e.clientY + (doc.documentElement.scrollTop || doc.body.scrollTop);
-
-                //create preview block
-                var cln = $('<div>', {
-                    id: 'pstprev_' + pNum,
-                    class: 'post_preview post'
-                })
-                    .css('cssText', 'top:' + y + 'px;' + (x < doc.body.clientWidth/2 ? 'left:' + x + 'px' : 'right:' + parseInt(doc.body.clientWidth - x + 1) 
-+ 'px'));
-
-
-                var mkPreview = function(cln, html) {
-
-                    cln.html(html);
-
-                    showPreview($(cln));
-                    //if(!$x('.//small', cln)) showRefMap(post, p_num, refMap)
-                };
-
-                cln.html('Загрузка...');
-
-                //если пост найден в дереве.
-                if($('div[id='+pNum+']').length > 0) {
-                    var postdata = $('div[id='+pNum+']').clone().html();
-                    //TODO: лучше бы вынести в mkPreview
-                    //if($.localStorage('addImgPreview') > 0) showImgPreview($(postdata));
-
-                    //make preview
-                    mkPreview(cln, postdata);
-                }
-                //ajax api
-//                else {
-//                    $.getJSON(mayuri_cfg['board_url']+'api/single/'+pNum)
-//                        .success(function(data) {
-//                            //post templates
-//                            var postdata = makeAjaxPost(data).html();
-//
-//                            //make preview
-//                            mkPreview(cln, postdata);
-//
-//                        })//if error
-//                        .error(function() {
-//                            cln.html('Пост не найден.');
-//                        });
-//                }
-
-               $del(doc.getElementById(cln.id));
-
-                //add preview
-                $('body').append(cln);
-            });
-
-            $(this).on('mouseout', function() {
-                delPreview($(this));
-            })
-        }
-    });
-
-}
-
-function delPreview(e) {
-    var el = e.relatedTarget;
-    if(!el) {
-        $(el).each(function(clone) {
-            $del(clone)
-        });
-    }
-    {
-        while(el.next())
-            $del(el.next());
-    }
-}
-