(maybe) fix escaped metachars

[blerg.git] / www / js / blerg.js

diff --git a/www/js/blerg.js b/www/js/blerg.js
index 7203f09..3c4cc0e 100644 (file)
--- a/www/js/blerg.js
+++ b/www/js/blerg.js
@@ -5,7 +5,7 @@
 // Config
 var baseURL = '';
 var recordTemplate = new Template(
-    '<div class="record">#{data}<div class="info">Posted #{date}</div></div>'
+    '<div class="record">#{data}<div class="info">Posted #{date}. <a href="/\##{author}/#{record}">[permalink]</a></div></div>'
 );
 var tagRecordTemplate = new Template(
     '<div class="record">#{data}<div class="info">Posted by <a class="author ref" href="/\##{author}" onclick="return qlink()">@#{author}</a> on #{date}</div></div>'
@@ -111,8 +111,7 @@ LoginStatus.prototype.post = function(msg) {
                     qlink(this.username);
                 } else {
                     currentPager.itemCount++;
-                    currentPager.pageStart = null;
-                    currentPager.loadItems();
+                    currentPager.reload();
                 }
             } else {
                 alert('Post failed!');
@@ -181,19 +180,33 @@ Pager.prototype.displayItems = function() {
     } else {
         $('older_link').hide();
     }
+
+    document.body.scrollTo();
+}
+
+Pager.prototype.reload = function() {
+    this.pageStart = null;
+    this.loadItems(null, null, Pager.prototype.showPageAt.bind(this, this.itemCount - 1));
 }
 
 Pager.prototype.showPageAt = function(r) {
-    if (this.itemCache[r] && this.itemCache[r - 9]) {
+    var end = (r - 9 > 0 ? r - 9 : 0);
+    if (this.itemCache[r] && this.itemCache[end]) {
         this.pageStart = r;
         this.displayItems();
     } else {
-        this.loadItems((r >= 49 ? r - 49 : 0), r);
+        this.loadItems((r >= 49 ? r - 49 : 0), r, Pager.prototype.showPageAt.bind(this, r));
     }
 }
 
 Pager.prototype.showRecord = function(r) {
-    this.showPageAt(r);
+    if (this.itemCache[r]) {
+        $('older_link').hide();
+        $('newer_link').hide();
+        items.update(this.itemCache[r].html);
+    } else {
+        this.loadItems(r, r, Pager.prototype.showRecord.bind(this, r));
+    }
 }
 
 
@@ -231,7 +244,8 @@ function User(username) {
             var j = r.responseText.evalJSON();
             if (j) {
                 this.itemCount = parseInt(j.record_count);
-                this.displayItems();
+                if (!this.pageStart)
+                    this.showPageAt(this.itemCount - 1);
             }
         }.bind(this)
     });
@@ -251,7 +265,7 @@ User.prototype.show = function() {
     $('usercontrols').show();
 }
 
-User.prototype.loadItems = function(from, to) {
+User.prototype.loadItems = function(from, to, continuation) {
     var url;
     if (from != undefined && to != undefined) {
         url = baseURL + '/get/' + this.username + '/' + from + '-' + to;
@@ -267,13 +281,14 @@ User.prototype.loadItems = function(from, to) {
             if (records && records.length > 0) {
                 records.each(function(v) {
                     v.id = v.record;
+                    v.author = this.username;
                     mangleRecord(v, recordTemplate);
-                });
+                }.bind(this));
                 this.addItems(records);
                 if (!this.pageStart)
                     this.pageStart = records[0].recInt;
             }
-            this.displayItems();
+            continuation();
         }.bind(this),
         onFailure: function(r) {
             this.displayItems();
@@ -326,8 +341,11 @@ function mangleRecord(record, template) {
         l = l.replace(/(\s|^)\[([^\]]+)\]\((https?:\/\/[a-zA-Z0-9.-]*[a-zA-Z0-9](\/[^)"]*?)?)\)/g, '$1<a href="$3">$2</a>');
 
         // Turn *foo* into italics and **foo** into bold
-        l = l.replace(/(\W|^)\*\*([^*]+)\*\*(\W|$)/g, '$1<b>$2</b>$3');
-        l = l.replace(/(\W|^)\*([^*]+)\*(\W|$)/g, '$1<i>$2</i>$3');
+        l = l.replace(/([^\w\\]|^)\*\*(\w[^*]*)\*\*(\W|$)/g, '$1<b>$2</b>$3');
+        l = l.replace(/([^\w\\]|^)\*(\w[^*]*)\*(\W|$)/g, '$1<i>$2</i>$3');
+
+        // Remove backslashes from escaped metachars
+        l = l.replace(/\\([*\[\]])/g, '$1');
 
         // Turn refs and tags into links
         l = l.replace(/(\s|^)#([A-Za-z0-9_-]+)/g, '$1<a href="#/tag/$2" class="ref" onclick="return qlink()">#$2</a>');
@@ -414,6 +432,7 @@ function Tag(type, tag) {
                 });
                 this.addItems(j);
                 this.pageStart = j.length - 1;
+                this.itemCount = j.length;
             }
             this.displayItems();
         }.bind(this),
@@ -445,6 +464,7 @@ Tag.prototype.show = function() {
 // Pager for browsing subscription feeds
 function Feed() {
     this.initPager();
+    this.username = loginStatus.username;
     this.baseFrag = '/feed';
 
     new Ajax.Request(baseURL + '/feed', {
@@ -462,6 +482,7 @@ function Feed() {
                 });
                 this.addItems(response);
                 this.pageStart = response.length - 1;
+                this.itemCount = response.length;
             }
             this.displayItems();
         }.bind(this),
@@ -648,7 +669,7 @@ function loadLatest() {
             j.tags.each(function(v) {
                 var a = new Element('a', {href: '/#/tag/' + v});
                 a.insert('#' + v);
-                a.onclick = qlink;
+                a.onclick = "return qlink()";
                 a.className = 'ref';
                 $('latest-tags').insert(a);
                 $('latest-tags').appendChild(document.createTextNode(' '));
@@ -685,18 +706,29 @@ function hashSwitch() {
     if (m = location.search.match(/^\?post\/([^/]+)\/(.+)/)) {
         $('post').show();
         $('post.content').value = '[' + decodeURIComponent(m[1]).replace(']','').replace('[','') + '](' + decodeURIComponent(m[2]) + ')';
-    } else if (m = location.hash.match(/^#\/(ref|tag)\/([A-Za-z0-9_-]+)$/)) {
-        currentPager = new Tag(m[1], m[2]);
+    } else if (m = location.hash.match(/^#\/(ref|tag)\/([A-Za-z0-9_-]+)(?:\/p(\d+))?$/)) {
+        if (!currentPager || !(currentPager instanceof Tag) || currentPager.type != m[1] || currentPager.tag != m[2])
+            currentPager = new Tag(m[1], m[2]);
         currentPager.show();
-    } else if (m = location.hash.match(/^#\/feed/)) {
+
+        if (m[3]) {
+            var r = parseInt(m[3]);
+            currentPager.showPageAt(r);
+        }
+    } else if (m = location.hash.match(/^#\/feed(?:\/p(\d+))?$/)) {
         if (loginStatus.loggedIn) {
-            currentPager = new Feed();
+            if (!currentPager || !(currentPager instanceof Feed) || currentPager.username != loginStatus.username)
+                currentPager = new Feed();
             currentPager.show();
+            if (m[3]) {
+                var r = parseInt(m[3]);
+                currentPager.showPageAt(r);
+            }
         } else {
             location.href = baseURL;
         }
     } else if (m = location.hash.match(/^#([A-Za-z0-9_-]+)(?:\/(p)?(\d+))?$/)) {
-        if (!currentPager || currentPager.username != m[1])
+        if (!currentPager || !(currentPager instanceof User) || currentPager.username != m[1])
             currentPager = new User(m[1]);
         currentPager.show();
         loginStatus.update();
@@ -708,10 +740,8 @@ function hashSwitch() {
             } else {
                 currentPager.showRecord(r);
             }
-        } else {
-            currentPager.pageStart = currentPager.itemCount - 1;
-            currentPager.loadItems();
         }
+        // Do nothing otherwise, the User constructor takes care of it
     } else {
         $$('[name=section]').each(function(v) { v.update('Welcome') });
         $('signup').hide();