MyShaarli/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_.
*/
use Shaarli\Config\ConfigManager;
use Shaarli\Plugin\PluginManager;
use Shaarli\Router;
/**
* In the footer hook, there is a working example of a translation extension for Shaarli.
*
* The extension must be attached to a new translation domain (i.e. NOT 'shaarli').
* Use case: any custom theme or non official plugin can use the translation system.
*
* See the documentation for more information.
*/
const EXT_TRANSLATION_DOMAIN = 'demo';
/*
* This is not necessary, but it's easier if you don't want Poedit to mix up your translations.
*/
function demo_plugin_t($text, $nText = '', $nb = 1)
{
return t($text, $nText, $nb, EXT_TRANSLATION_DOMAIN);
}
/**
* Initialization function.
* It will be called when the plugin is loaded.
* This function can be used to return a list of initialization errors.
*
* @param $conf ConfigManager instance.
*
* @return array List of errors (optional).
*/
function demo_plugin_init($conf)
{
$conf->get('toto', 'nope');
if (! $conf->exists('translation.extensions.demo')) {
// Custom translation with the domain 'demo'
$conf->set('translation.extensions.demo', 'plugins/demo_plugin/languages/');
$conf->write(true);
}
$errors[] = 'This a demo init error.';
return $errors;
}
/**
* 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) {
/*
* Links in toolbar:
* A link is an array of its attributes (key="value"),
* and a mandatory `html` key, which contains its value.
*/
$button = array(
'attr' => array (
'href' => '#',
'class' => 'mybutton',
'title' => 'hover me',
),
'html' => 'DEMO buttons toolbar',
);
$data['buttons_toolbar'][] = $button;
}
/*
* Add additional input fields in the tools.
* A field is an array containing:
* [
* 'form-attribute-1' => 'form attribute 1 value',
* 'form-attribute-2' => 'form attribute 2 value',
* 'inputs' => [
* [
* 'input-1-attribute-1 => 'input 1 attribute 1 value',
* 'input-1-attribute-2 => 'input 1 attribute 2 value',
* ],
* [
* 'input-2-attribute-1 => 'input 2 attribute 1 value',
* ],
* ],
* ]
* This example renders as:
* <form form-attribute-1="form attribute 1 value" form-attribute-2="form attribute 2 value">
* <input input-1-attribute-1="input 1 attribute 1 value" input-1-attribute-2="input 1 attribute 2 value">
* <input input-2-attribute-1="input 2 attribute 1 value">
* </form>
*/
$form = array(
'attr' => array(
'method' => 'GET',
'action' => '?',
'class' => 'addform',
),
'inputs' => array(
array(
'type' => 'text',
'name' => 'demo',
'placeholder' => 'demo',
)
)
);
$data['fields_toolbar'][] = $form;
}
// Another button always displayed
$button = array(
'attr' => array(
'href' => '#',
),
'html' => 'Demo',
);
$data['buttons_toolbar'][] = $button;
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
* - endofpage
* - 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'][] = '<br>'. demo_plugin_t('Shaarli is now enhanced by the awesome demo_plugin.');
// Free elements at the end of the page.
$data['endofpage'][] = '<marquee id="demo_marquee">' .
'DEMO: it\'s 1999 all over again!' .
'</marquee>';
// 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 links (action_plugin):
* A link is an array of its attributes (key="value"),
* and a mandatory `html` key, which contains its value.
* It's also recommended to add key 'on' or 'off' for theme rendering.
*/
$action = array(
'attr' => array(
'href' => '?up',
'title' => 'Uppercase!',
),
'html' => '←',
);
if (isset($_GET['up'])) {
// Manipulate link data
foreach ($data['links'] as &$value) {
$value['description'] = strtoupper($value['description']);
$value['title'] = strtoupper($value['title']);
}
$action['on'] = true;
} else {
$action['off'] = true;
}
$data['action_plugin'][] = $action;
// link_plugin (for each link)
foreach ($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['linksToDisplay'] as &$value) {
$value['formatedDescription'] .= ' ಠ_ಠ';
}
// Add plugin content at the end of each link
foreach ($data['linksToDisplay'] as &$value) {
$value['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.');
}
}
/**
* Execute render_feed hook.
* Called with ATOM and RSS feed.
*
* Special data keys:
* - _PAGE_: current page
* - _LOGGEDIN_: true/false
*
* @param array $data data passed to plugin
*
* @return array altered $data.
*/
function hook_demo_plugin_render_feed($data)
{
foreach ($data['links'] as &$link) {
if ($data['_PAGE_'] == Router::$PAGE_FEED_ATOM) {
$link['description'] .= ' - ATOM Feed' ;
} elseif ($data['_PAGE_'] == Router::$PAGE_FEED_RSS) {
$link['description'] .= ' - RSS Feed';
}
}
return $data;
}
/**
* This function is never called, but contains translation calls for GNU gettext extraction.
*/
function demo_dummy_translation()
{
// meta
t('A demo plugin covering all use cases for template designers and plugin developers.');
}