start work on theme options page

functions.php

@@ -30,8 +30,15 @@ if (defined("CPM_DATE_FORMAT")) {
 $comic_filename_filters = array();
 $comic_filename_filters['default'] = "{date}*.*";
 
+require_once(dirname(__FILE__) . '/options.php');
+
 // load all of the comic & non-comic category information
-add_action('init', 'get_all_comic_categories');
+add_action('init', '__comicpress_init');
+
+function __comicpress_init() {
+  get_all_comic_categories();
+  add_action('admin_init', '__comicpress_add_options_admin');
+}
 
 function get_first_comic() {
   return get_terminal_post_in_category(get_all_comic_categories_as_cat_string());

options.php

@@ -0,0 +1,36 @@
+<?php
+
+class ComicPressOptionsAdmin {
+  function render_admin() {
+    $nonce = wp_create_nonce('comicpress');
+
+    echo '<div class="wrap">';
+      echo '<h2>ComicPress Config</h2>';
+      echo '<form method="post">';
+        echo '<input type="hidden" name="cp[_nonce]" value="' . $nonce . '" />';
+      echo '</form>';
+    echo '</div>';
+  }
+
+  function get_root_categories() {
+    $root_categories = array();
+    foreach (get_all_category_ids() as $id) {
+      $category = get_category($id);
+      if (!empty($category)) {
+        if ($category->parent == 0) {
+          $root_categories[] = $category;
+        }
+      }
+    }
+    return $root_categories;
+  }
+}
+
+$comicpress_options_admin = new ComicPressOptionsAdmin();
+
+function __comicpress_add_options_admin() {
+  global $comicpress_options_admin;
+  add_theme_page(__("ComicPress Options", 'comicpress'), __('ComicPress Options', 'comicpress'), 'edit_themes', basename(__FILE__), array($comicpress_options_admin, 'render_admin'));
+}
+
+?>

test/OptionsPageTest.php

@@ -0,0 +1,58 @@
+<?php
+
+require_once('PHPUnit/Framework.php');
+require_once(dirname(__FILE__) . '/../../mockpress/mockpress.php');
+require_once(dirname(__FILE__) . '/../options.php');
+
+class OptionsPageTest extends PHPUnit_Framework_TestCase {
+  function setUp() {
+    _reset_wp();
+    $this->admin = new ComicPressOptionsAdmin();
+  }
+  
+  function testShowOptionsPage() {
+    $nonce = wp_create_nonce('comicpress');
+  
+    ob_start();
+    $this->admin->render_admin();
+    $source = ob_get_clean();
+    
+    $this->assertTrue(($xml = _to_xml($source)) !== false);
+    foreach (array(
+      '//input[@name="cp[_nonce]" and @value="' . $nonce . '"]' => true
+    ) as $xpath => $value) {
+      $this->assertTrue(_xpath_test($xml, $xpath, $value), $xpath);
+    }
+  }
+  
+  function providerTestGetRootComicCategories() {
+    return array(
+      array(array(), array()),
+      array(
+        array(
+          array('id' => 1, 'parent' => 0),
+          array('id' => 2, 'parent' => 1)
+        ),
+        array(1)
+      )
+    );
+  }
+  
+  /**
+   * @dataProvider providerTestGetRootComicCategories
+   */
+  function testGetRootCategories($categories, $expected_result) {
+    foreach ($categories as $category) {
+      add_category($category['id'], (object)$category);
+    }
+    
+    $result_ids = array();
+    foreach ($this->admin->get_root_categories() as $category) {
+      $result_ids[] = $category->term_id;
+    }
+    
+    $this->assertEquals($expected_result, $result_ids);
+  }
+}
+
+?>