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diff --git a/plugins/demo_plugin/demo_plugin.php b/plugins/demo_plugin/demo_plugin.php
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+<?php
+/**
+ * Demo Plugin.
+ *
+ * This plugin try to cover Shaarli's plugin API entirely.
+ * Can be used by plugin developper to make their own.
+ */
+
+/*
+ * RENDER HEADER, INCLUDES, FOOTER
+ *
+ * Those hooks are called at every page rendering.
+ * You can filter its execution by checking _PAGE_ value
+ * and check user status with _LOGGEDIN_.
+ */
+
+/**
+ * Hook render_header.
+ * Executed on every page redering.
+ *
+ * Template placeholders:
+ *   - buttons_toolbar
+ *   - fields_toolbar
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_header($data)
+{
+    // Only execute when linklist is rendered.
+    if ($data['_PAGE_'] == Router::$PAGE_LINKLIST) {
+
+        // If loggedin
+        if ($data['_LOGGEDIN_'] === true) {
+            // Buttons in toolbar
+            $data['buttons_toolbar'][] = '<li><a href="#">DEMO_buttons_toolbar</a></li>';
+        }
+
+        // Fields in toolbar
+        $data['fields_toolbar'][] = 'DEMO_fields_toolbar';
+    }
+
+    return $data;
+}
+
+/**
+ * Hook render_includes.
+ * Executed on every page redering.
+ *
+ * Template placeholders:
+ *   - css_files
+ *
+ * Data:
+ *   - _PAGE_: current page
+ *   - _LOGGEDIN_: true/false
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_includes($data)
+{
+    // List of plugin's CSS files.
+    // Note that you just need to specify CSS path.
+    $data['css_files'][] = PluginManager::$PLUGINS_PATH . '/demo_plugin/custom_demo.css';
+
+    return $data;
+}
+
+/**
+ * Hook render_footer.
+ * Executed on every page redering.
+ *
+ * Template placeholders:
+ *   - text
+ *   - js_files
+ *
+ * Data:
+ *   - _PAGE_: current page
+ *   - _LOGGEDIN_: true/false
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_footer($data)
+{
+    // footer text
+    $data['text'][] = 'Shaarli is now enhanced by the awesome demo_plugin.';
+
+    // List of plugin's JS files.
+    // Note that you just need to specify CSS path.
+    $data['js_files'][] = PluginManager::$PLUGINS_PATH . '/demo_plugin/demo_plugin.js';
+
+    return $data;
+}
+
+/*
+ * SPECIFIC PAGES
+ */
+
+/**
+ * Hook render_linklist.
+ *
+ * Template placeholders:
+ *   - action_plugin: next to 'private only' button.
+ *   - plugin_start_zone: page start
+ *   - plugin_end_zone: page end
+ *   - link_plugin: icons below each links.
+ *
+ * Data:
+ *   - _LOGGEDIN_: true/false
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_linklist($data)
+{
+    // action_plugin
+    $data['action_plugin'][] = '<div class="upper_plugin_demo"><a href="?up" title="Uppercase!">←</a></div>';
+
+    if (isset($_GET['up'])) {
+        // Manipulate link data
+        foreach ($data['links'] as &$value) {
+            $value['description'] = strtoupper($value['description']);
+            $value['title'] = strtoupper($value['title']);
+        }
+    }
+
+    // link_plugin (for each link)
+    foreach ($data['links'] as &$value) {
+        $value['link_plugin'][] = ' DEMO \o/';
+    }
+
+    // plugin_start_zone
+    $data['plugin_start_zone'][] = '<center>BEFORE</center>';
+    // plugin_start_zone
+    $data['plugin_end_zone'][] = '<center>AFTER</center>';
+
+    return $data;
+}
+
+/**
+ * Hook render_editlink.
+ *
+ * Template placeholders:
+ *   - field_plugin: add link fields after tags.
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_editlink($data)
+{
+    // Load HTML into a string
+    $html = file_get_contents(PluginManager::$PLUGINS_PATH .'/demo_plugin/field.html');
+
+    // replace value in HTML if it exists in $data
+    if (!empty($data['link']['stuff'])) {
+        $html = sprintf($html, $data['link']['stuff']);
+    } else {
+        $html = sprintf($html, '');
+    }
+
+    // field_plugin
+    $data['edit_link_plugin'][] = $html;
+
+    return $data;
+}
+
+/**
+ * Hook render_tools.
+ *
+ * Template placeholders:
+ *   - tools_plugin: after other tools.
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_tools($data)
+{
+    // field_plugin
+    $data['tools_plugin'][] = 'tools_plugin';
+
+    return $data;
+}
+
+/**
+ * Hook render_picwall.
+ *
+ * Template placeholders:
+ *   - plugin_start_zone: page start.
+ *   - plugin_end_zone: page end.
+ *
+ * Data:
+ *   - _LOGGEDIN_: true/false
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_picwall($data)
+{
+    // plugin_start_zone
+    $data['plugin_start_zone'][] = '<center>BEFORE</center>';
+    // plugin_end_zone
+    $data['plugin_end_zone'][] = '<center>AFTER</center>';
+
+    return $data;
+}
+
+/**
+ * Hook render_tagcloud.
+ *
+ * Template placeholders:
+ *   - plugin_start_zone: page start.
+ *   - plugin_end_zone: page end.
+ *
+ * Data:
+ *   - _LOGGEDIN_: true/false
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_tagcloud($data)
+{
+    // plugin_start_zone
+    $data['plugin_start_zone'][] = '<center>BEFORE</center>';
+    // plugin_end_zone
+    $data['plugin_end_zone'][] = '<center>AFTER</center>';
+
+    return $data;
+}
+
+/**
+ * Hook render_daily.
+ *
+ * Template placeholders:
+ *   - plugin_start_zone: page start.
+ *   - plugin_end_zone: page end.
+ *
+ * Data:
+ *   - _LOGGEDIN_: true/false
+ *
+ * @param array $data data passed to plugin
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_render_daily($data)
+{
+    // plugin_start_zone
+    $data['plugin_start_zone'][] = '<center>BEFORE</center>';
+    // plugin_end_zone
+    $data['plugin_end_zone'][] = '<center>AFTER</center>';
+
+
+    // Manipulate columns data
+    foreach ($data['cols'] as &$value) {
+        foreach ($value as &$value2) {
+            $value2['formatedDescription'] .= ' ಠ_ಠ';
+        }
+    }
+
+    // Add plugin content at the end of each link
+    foreach ($data['cols'] as &$value) {
+        foreach ($value as &$value2) {
+            $value2['link_plugin'][] = 'DEMO';
+        }
+    }
+
+    return $data;
+}
+
+/*
+ * DATA SAVING HOOK.
+ */
+
+/**
+ * Hook savelink.
+ *
+ * Triggered when a link is save (new or edit).
+ * All new links now contain a 'stuff' value.
+ *
+ * @param array $data contains the new link data.
+ *
+ * @return array altered $data.
+ */
+function hook_demo_plugin_save_link($data)
+{
+
+    // Save stuff added in editlink field
+    if (!empty($_POST['lf_stuff'])) {
+        $data['stuff'] = escape($_POST['lf_stuff']);
+    }
+
+    return $data;
+}
+
+/**
+ * Hook delete_link.
+ *
+ * Triggered when a link is deleted.
+ *
+ * @param array $data contains the link to be deleted.
+ *
+ * @return array altered data.
+ */
+function hook_demo_plugin_delete_link($data)
+{
+    if (strpos($data['url'], 'youtube.com') !== false) {
+        exit('You can not delete a YouTube link. Don\'t ask.');
+    }
+}
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