The new interface is completely in Ajax. Feel a lot faster. re #73

Uses pushState / popState to keep browser history correct and allow using back in the browser.

base.php

@@ -218,7 +218,7 @@ class LinkNavigation extends Link
         parent::__construct ($phref, Link::OPDS_NAVIGATION_TYPE, $prel, $ptitle);
         if (!is_null (GetUrlParam (DB))) $this->href = addURLParameter ($this->href, DB, GetUrlParam (DB));
         if (!preg_match ("#^\?(.*)#", $this->href) && !empty ($this->href)) $this->href = "?" . $this->href;
-        if (preg_match ("/bookdetail.php/", $_SERVER["SCRIPT_NAME"])) {
+        if (preg_match ("/(bookdetail|getJSON).php/", $_SERVER["SCRIPT_NAME"])) {
             $this->href = "index.php" . $this->href;
         } else {
             $this->href = $_SERVER["SCRIPT_NAME"] . $this->href;
@@ -265,6 +265,16 @@ class Entry
         }
         return date (DATE_ATOM, self::$updated);
     }
+    
+    public function getContentArray () {
+        $navlink = "#";
+        foreach ($this->linkArray as $link) { 
+            if ($link->type != Link::OPDS_NAVIGATION_TYPE) { continue; }
+            
+            $navlink = $link->hrefXhtml ();
+        }
+        return array ( "title" => $this->title, "content" => $this->content, "navlink" => $navlink );
+    }
  
     public function __construct($ptitle, $pid, $pcontent, $pcontentType, $plinkArray) {
         global $config;
@@ -299,6 +309,14 @@ class EntryBook extends Entry
         $this->localUpdated = $pbook->timestamp;
     }
     
+    public function getContentArray () {
+        $entry = array ( "title" => $this->title);
+        $entry ["coverurl"] = $this->getCover ();
+        $entry ["thumbnailurl"] = $this->getCoverThumbnail ();
+        $entry ["book"] = $this->book->getContentArray ();
+        return $entry;
+    }
+    
     public function getCoverThumbnail () {
         foreach ($this->linkArray as $link) {
             if ($link->rel == Link::OPDS_THUMBNAIL_TYPE)
@@ -417,6 +435,61 @@ class Page
         }
     }
     
+    public function getContentArray ()
+    {
+        global $config;
+        $database = GetUrlParam (DB);
+        $page = getURLParam ("page", Base::PAGE_INDEX);
+        $out = array ( "title" => $this->title, "version" => VERSION);
+        $entries = array ();
+        foreach ($this->entryArray as $entry) {
+            array_push ($entries, $entry->getContentArray ());
+        }
+        $out ["databaseId"] = GetUrlParam (DB, "");
+        $out ["databaseName"] = Base::getDbName ();
+        $out ["page"] = $page;
+        $out ["entries"] = $entries;
+        $out ["isPaginated"] = 0;
+        if ($this->isPaginated ()) {
+            $prevLink = $this->getPrevLink ();
+            $nextLink = $this->getNextLink ();
+            $out ["isPaginated"] = 1;
+            $out ["prevLink"] = "";
+            if (!is_null ($prevLink)) {
+                $out ["prevLink"] = $prevLink->hrefXhtml ();
+            }
+            $out ["nextLink"] = "";
+            if (!is_null ($nextLink)) {
+                $out ["nextLink"] = $nextLink->hrefXhtml ();
+            }
+            $out ["maxPage"] = $this->getMaxPage ();
+            $out ["currentPage"] = $this->n;
+        }
+        $out ["i18n"] = array ("coverAlt" => localize("i18n.coversection"),
+                       "authorsTitle" => localize("authors.title"),
+                       "tagsTitle" => localize("tags.title"),
+                       "seriesTitle" => localize("series.title"),
+                       "customizeTitle" => localize ("customize.title"),
+                       "aboutTitle" => localize ("about.title"),
+                       "previousAlt" => localize ("paging.previous.alternate"),
+                       "nextAlt" => localize ("paging.next.alternate"),
+                       "searchAlt" => localize ("search.alternate"),
+                       "homeAlt" => localize ("home.alternate"));
+
+        $out ["containsBook"] = 0;
+        if ($this->containsBook ()) {
+            $out ["containsBook"] = 1;
+        }
+        $out["abouturl"] = "about.xml";
+        if (getCurrentOption ('use_fancyapps') == 0) {
+            $out["abouturl"] = "index.php" . str_replace ("&", "&", addURLParameter ("?page=16", DB, $database));
+        }
+        
+        $out ["homeurl"] = "index.php";
+        if ($page != Base::PAGE_INDEX && !is_null ($database)) $out ["homeurl"] = $out ["homeurl"] .  "?" . addURLParameter ("", DB, $database);
+        return $out;
+    }
+    
     public function isPaginated ()
     {
         global $config;

book.php

@@ -102,6 +102,31 @@ class Book extends Base {
         return "?page=".parent::PAGE_BOOK_DETAIL."&id=$this->id";
     }
     
+    public function getContentArray () {
+        global $config;
+        $i = 0;
+        $preferedData = array ();
+        foreach ($config['cops_prefered_format'] as $format)
+        {
+            if ($i == 2) { break; }
+            if ($data = $this->getDataFormat ($format)) {
+                $i++;
+                array_push ($preferedData, array ("url" => $data->getHtmlLink (), "name" => $format));
+            }
+        }
+        $serie = $this->getSerie ();
+        if (is_null ($serie)) $serie = "";
+        
+        return array ("hasCover" => $this->hasCover,
+                      "preferedData" => $preferedData,
+                      "detailUrl" => $this->getDetailUrl (),
+                      "rating" => $this->getRating (),
+                      "pubDate" => $this->getPubDate (),
+                      "authorsName" => $this->getAuthorsName (),
+                      "tagsName" => $this->getTagsName (),
+                      "seriesName" => $serie);  
+    }
+    
     public function getDetailUrl ($permalink = false) {
         global $config;
         $urlParam = $this->getUri ();

getJSON.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * COPS (Calibre OPDS PHP Server) HTML main script
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Sébastien Lucas <sebastien@slucas.fr>
+ *
+ */
+ 
+    require_once ("config.php");
+    require_once ("base.php");
+    require_once ("author.php");
+    require_once ("serie.php");
+    require_once ("tag.php");
+    require_once ("language.php");
+    require_once ("customcolumn.php");
+    require_once ("book.php");
+    
+    header ("Content-Type:application/json;charset=utf-8");
+    $page = getURLParam ("page", Base::PAGE_INDEX);
+    $query = getURLParam ("query");
+    $qid = getURLParam ("id");
+    $n = getURLParam ("n", "1");
+    $database = GetUrlParam (DB);
+    
+    $currentPage = Page::getPage ($page, $qid, $query, $n);
+    $currentPage->InitializeContent ();
+    
+    echo json_encode ($currentPage->getContentArray ());
+
+?>

index.php

@@ -32,9 +32,6 @@
     $n = getURLParam ("n", "1");
     $database = GetUrlParam (DB);
     
-    $currentPage = Page::getPage ($page, $qid, $query, $n);
-    $currentPage->InitializeContent (); 
-
 /* Test to see if pages are opened on an Eink screen 
  * test Kindle, Kobo Touch and Sony PRS-T1 Ereader. 
  * HTTP_USER_AGENT = "Mozilla/5.0 (Linux; U; en-us; EBRD1101; EXT) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1"
@@ -52,7 +49,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title><?php echo htmlspecialchars ($currentPage->title) ?></title>
+    <title>COPS</title>
     <script type="text/javascript" src="<?php echo getUrlWithVersion("js/jquery-1.9.1.min.js") ?>"></script>
     <script type="text/javascript" src="<?php echo getUrlWithVersion("js/jquery.cookies.js") ?>"></script>
 <?php if (getCurrentOption ('use_fancyapps') == 1) { ?>
@@ -60,12 +57,44 @@
     <link rel="stylesheet" type="text/css" href="<?php echo getUrlWithVersion("resources/fancybox/jquery.fancybox.css") ?>" media="screen" />
 <?php } ?>
     <script type="text/javascript" src="<?php echo getUrlWithVersion("js/jquery.sortElements.js") ?>"></script>
+    <script type="text/javascript" src="<?php echo getUrlWithVersion("resources/doT/doT.min.js") ?>"></script>
+    <script type="text/javascript" src="<?php echo getUrlWithVersion("util.js") ?>"></script>
     <link rel="related" href="<?php echo $config['cops_full_url'] ?>feed.php" type="application/atom+xml;profile=opds-catalog" title="<?php echo $config['cops_title_default']; ?>" /> 
-    <link rel="icon" type="image/vnd.microsoft.icon" href="<?php echo $currentPage->favicon ?>" />
+    <link rel="icon" type="image/vnd.microsoft.icon" href="favicon.ico" />
     <link rel='stylesheet' type='text/css' href='http://fonts.googleapis.com/css?family=Open+Sans:400,300italic,800,300,400italic,600,600italic,700,700italic,800italic' />
     <link rel="stylesheet" type="text/css" href="<?php echo getUrlWithVersion(getCurrentCss ()) ?>" media="screen" />
     <link rel="stylesheet" type="text/css" href="<?php echo getUrlWithVersion("resources/normalize/normalize.css") ?>" />
     <script type="text/javascript">
+        var template, result;
+    
+        function ajaxifyLinks () {
+            if (history.pushState) {
+                $("a[href^='index']").click (function (event) {
+                    event.preventDefault(); 
+
+                    var url = $(this).attr('href');
+                    jsonurl = url.replace ("index", "getJSON");
+                    $.getJSON(jsonurl, function(data) {
+                        history.pushState(data, "", url);
+                        result = template (data);
+                        document.title = data.title;
+                        $(".container").html (result);
+                        
+                        ajaxifyLinks ();
+                    });
+                });
+            }
+        }
+        
+        window.onpopstate = function(event) {
+            //alert("location: " + document.location + ", state: " + JSON.stringify(event.state));
+            result = template (event.state);
+            document.title = event.state.title;
+            $(".container").html (result);
+                        
+            ajaxifyLinks ();
+        };
+    
         $(document).ready(function() {
             // Handler for .ready() called.
             
@@ -114,202 +143,25 @@
                 }
             });
             
+            $.get('templates/default/frontpage.html', function(data){
+                template = doT.template(data);
+                $.getJSON('<?php echo "getJSON.php?" . str_replace ("&", "&amp;", $_SERVER["QUERY_STRING"]); ?>', function(data) {
+                    result = template (data);
+                    document.title = data.title;
+                    $(".container").html (result);
+                    
+                    ajaxifyLinks ();
+                });
+            });
         });
+        
+        
 
-<?php
-    if ($currentPage->isPaginated ()) {
-        $prevLink = $currentPage->getPrevLink ();
-        $nextLink = $currentPage->getNextLink ();
-?>
-        $(document).keydown(function(e){
-<?php
-        if (!is_null ($prevLink)) {
-            echo "if (e.keyCode == 37) {\$(location).attr('href','" . $prevLink->hrefXhtml () . "');}"; 
-        }
-        if (!is_null ($nextLink)) {
-            echo "if (e.keyCode == 39) {\$(location).attr('href','" . $nextLink->hrefXhtml () . "');}"; 
-        }
-
-?>
-        });
-<?php
-    }
-?> 
     </script>
 </head>
 <body>
-<div class="container">
+<div id="content" style="display: none;"></div>
-    <header>
+<div class="container">    
-        <a class="headleft" href="<?php echo $_SERVER["SCRIPT_NAME"]; if ($page != Base::PAGE_INDEX && !is_null ($database)) echo "?" . addURLParameter ("", DB, $database); ?>">
-                <img src="<?php echo getUrlWithVersion("images/home.png") ?>" alt="<?php echo localize ("home.alternate") ?>" />
-        </a>
-        <img class="headright" id="searchImage" src="<?php echo getUrlWithVersion("images/setting64.png") ?>" alt="Settings and menu" />
-        <div class="headcenter">
-            <h1><?php echo htmlspecialchars ($currentPage->title) ?></h1>
-        </div>
-        <div id="tool" <?php if ($withToolbar) echo 'style="display: none"' ?>>
-            <div style="float: left; width: 60%">
-                <form action="index.php" method="get">
-                    <div style="float: right">
-                        <input type="image" src="images/search32.png" alt="<?php echo localize ("search.alternate") ?>" />
-                    </div>
-                    <div class="stop">
-                        <input type="hidden" name="current" value="<?php echo $page ?>" />
-                        <input type="hidden" name="page" value="9" />
-                        <?php if (!is_null ($database)) { ?>
-                            <input type="hidden" name="<?php echo DB ?>" value="<?php echo $database ?>" />
-                        <?php } ?>
-                        <input type="search" name="query" />
-                    </div>
-                </form>
-            </div>
-    <?php if ($currentPage->containsBook ()) { ?>
-            <div style="float: right; width: 35%">
-                <div style="float: right">
-                    <img id="sort" src="images/sort32.png" alt="<?php echo localize ("sort.alternate") ?>" />
-                </div>
-                <div class="stop">
-                    <select id="sortchoice">
-                        <option value="st"><?php echo localize("bookword.title") ?></option>
-                        <option value="sa"><?php echo localize("authors.title") ?></option>
-                        <option value="ss"><?php echo localize("series.title") ?></option>
-                        <option value="sp"><?php echo localize("content.published") ?></option>
-                    </select>
-                    <select id="sortorder">
-                        <option value="asc"><?php echo localize("search.sortorder.asc") ?></option>
-                        <option value="desc"><?php echo localize("search.sortorder.desc") ?></option>
-                    </select> 
-                </div>
-            </div>
-    <?php } ?>
-        </div>
-    </header>
-    <div id="content" style="display: none;"></div>
-    <section>
-<?php
-            if ($page == Base::PAGE_BOOK_DETAIL) {
-                include ("bookdetail.php");
-            } else if ($page == Base::PAGE_ABOUT) {
-                readfile ("about.xml");
-            }
-            foreach ($currentPage->entryArray as $entry) {
-                if (get_class ($entry) != "EntryBook") {
-?>
-        <article>
-            <div class="frontpage">
-            <?php foreach ($entry->linkArray as $link) { if ($link->type != Link::OPDS_NAVIGATION_TYPE) { continue; } ?> <a href="<?php echo $link->hrefXhtml () ?>">
-                    <h2><?php echo htmlspecialchars ($entry->title) ?></h2>
-                    <?php } ?>
-                    <h4><?php echo htmlspecialchars ($entry->content) ?></h4> 
-                </a>
-            </div>
-        </article>
-        <?php
-                }
-                else
-                {
-        ?>
-        <article class="books">
-            <span class="cover">
-            <?php
-                if ($entry->book->hasCover) {
-            ?>
-                <a data-fancybox-group="group" class="fancycover" href="<?php echo $entry->getCover () ?>"><img src="<?php echo $entry->getCoverThumbnail () ?>" alt="<?php echo localize("i18n.coversection") ?>" /></a>
-            <?php
-                }
-            ?>
-            </span>
-            <h2 class="download">
-            <?php
-                $i = 0;
-                foreach ($config['cops_prefered_format'] as $format)
-                {
-                    if ($i == 2) { break; }
-                    if ($data = $entry->book->getDataFormat ($format)) {
-                        $i++;
-            ?>    
-                <a href="<?php echo $data->getHtmlLink () ?>"><?php echo $format ?></a><br />
-                <?php
-                    }
-                    
-                }
-            ?>
-            </h2>
-            <a class="fancydetail" href="<?php echo $entry->book->getDetailUrl () ?>">
-            <div class="fullclickpopup">
-                <h2><span class="st"><?php echo htmlspecialchars ($entry->title) ?></span>
-<?php
-                if ($entry->book->getPubDate() != "")
-                {
-?>
-                    <span class="sp">(<?php echo $entry->book->getPubDate() ?>)</span>
-<?php
-                }
-?>
-<?php
-                if (!is_null ($entry->book->rating)) {
-?>
-                    <span class="sr"><?php echo $entry->book->getRating () ?></span>
-<?php
-                }
-?>
-                </h2>
-                <h4><?php echo localize("authors.title") . " : " ?></h4><span class="sa"><?php echo htmlspecialchars ($entry->book->getAuthorsName ()) ?></span><br />
-<?php
-                $tags = $entry->book->getTagsName ();
-                if (!empty ($tags)) {
-?>
-                <h4><?php echo localize("tags.title") . " : </h4>" . htmlspecialchars ($tags) ?><br />
-<?php
-                }
-?>
-<?php
-                $serie = $entry->book->getSerie ();
-                if (!is_null ($serie)) {
-?>
-                <h4><?php echo localize("series.title") . " : "  ?></h4><span class="ss"><?php echo htmlspecialchars ($serie->name) . " (" . $entry->book->seriesIndex . ")" ?></span><br />
-<?php
-                }
-?>
-            </div></a>
-        </article>
-<?php
-                }
-            }
-?>
-    </section>
-    <footer>
-        <div class="footleft">
-            <a href="customize.php"><img src="<?php echo getUrlWithVersion("images/theme.png") ?>" alt="<?php echo localize ("customize.title") ?>" /></a>
-        </div>
-        <div class="footright">
-            <a class="fancyabout" href="<?php if (getCurrentOption ('use_fancyapps') == 1) { echo "about.xml"; } else { echo $_SERVER["SCRIPT_NAME"] . str_replace ("&", "&amp;", addURLParameter ("?page=16", DB, $database)); } ?>"><img src="<?php echo getUrlWithVersion("images/info.png") ?>" alt="<?php echo localize ("about.title") ?>" /></a>
-        </div>
-<?php
-    if ($currentPage->isPaginated ()) {
-?> 
-
-        <div class="footcenter">
-        <?php
-            if (!is_null ($prevLink)) {
-        ?>
-        <a href="<?php echo $prevLink->hrefXhtml () ?>" ><img src="<?php echo getUrlWithVersion("images/previous.png") ?>" alt="<?php echo localize ("paging.previous.alternate") ?>" /></a>
-        <?php
-            }
-        ?>
-        <p><?php echo " " . $currentPage->n . " / " . $currentPage->getMaxPage () . " " ?></p>
-        <?php
-            if (!is_null ($nextLink)) {
-        ?>
-        <a href="<?php echo $nextLink->hrefXhtml () ?>" ><img src="<?php echo getUrlWithVersion("images/next.png") ?>" alt="<?php echo localize ("paging.next.alternate") ?>" /></a>
-        <?php
-            }
-        ?>
-        </div>
-<?php
-    }
-?>
-    </footer>
 </div>
 </body>
 </html>

util.js

@@ -0,0 +1,8 @@
+function htmlEscape(str) {
+    return String(str)
+            .replace(/&/g, '&')
+            .replace(/"/g, '"')
+            .replace(/'/g, ''')
+            .replace(/</g, '&lt;')
+            .replace(/>/g, '&gt;');
+}