friendica-addons/startpage/startpage.php

<?php
/**
 * Name: Start Page
 * Description: Set a preferred page to load on login from home page
 * Version: 1.0
 * Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
 *
 */
use Friendica\Core\Addon;
use Friendica\Core\PConfig;

function startpage_install() {
	Addon::registerHook('home_init', 'addon/startpage/startpage.php', 'startpage_home_init');
	Addon::registerHook('plugin_settings', 'addon/startpage/startpage.php', 'startpage_settings');
	Addon::registerHook('plugin_settings_post', 'addon/startpage/startpage.php', 'startpage_settings_post');
}


function startpage_uninstall() {
	Addon::unregisterHook('home_init', 'addon/startpage/startpage.php', 'startpage_home_init');
	Addon::unregisterHook('plugin_settings', 'addon/startpage/startpage.php', 'startpage_settings');
	Addon::unregisterHook('plugin_settings_post', 'addon/startpage/startpage.php', 'startpage_settings_post');
}



function startpage_home_init($a, $b) {
	if(! local_user())
		return;

	$page = PConfig::get(local_user(),'startpage','startpage');
	if(strlen($page)) {
		goaway($page);
	}
	return;
}

/**
 *
 * Callback from the settings post function.
 * $post contains the $_POST array.
 * We will make sure we've got a valid user account
 * and if so set our configuration setting for this person.
 *
 */

function startpage_settings_post($a,$post) {
	if(! local_user())
		return;
	if($_POST['startpage-submit'])
		PConfig::set(local_user(),'startpage','startpage',strip_tags(trim($_POST['startpage'])));
}


/**
 *
 * Called from the Plugin Setting form.
 * Add our own settings info to the page.
 *
 */



function startpage_settings(&$a,&$s) {

	if(! local_user())
		return;

	/* Add our stylesheet to the page so we can make our settings look nice */

	$a->page['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . $a->get_baseurl() . '/addon/startpage/startpage.css' . '" media="all" />' . "\r\n";

	/* Get the current state of our config variable */

	$page = PConfig::get(local_user(),'startpage','startpage');


	/* Add some HTML to the existing form */

	$s .= '<span id="settings_startpage_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_startpage_expanded\'); openClose(\'settings_startpage_inflated\');">';
	$s .= '<h3>' . t('Startpage') . '</h3>';
	$s .= '</span>';
	$s .= '<div id="settings_startpage_expanded" class="settings-block" style="display: none;">';
	$s .= '<span class="fakelink" onclick="openClose(\'settings_startpage_expanded\'); openClose(\'settings_startpage_inflated\');">';
	$s .= '<h3>' . t('Startpage') . '</h3>';
	$s .= '</span>';
	$s .= '<div id="startpage-page-wrapper">';
	$s .= '<label id="startpage-page-label" for="startpage-page">' . t('Home page to load after login  - leave blank for profile wall') . '</label>';
	$s .= '<input id="startpage-page" type="text" name="startpage" value="' . $page . '" />';
	$s .= '</div><div class="clear"></div>';
	$s .= '<div id="startpage-desc">' . t('Examples: &quot;network&quot; or &quot;notifications/system&quot;') . '</div>';

	/* provide a submit button */

	$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="startpage-submit" class="settings-submit" value="' . t('Save Settings') . '" /></div></div>';

}