<?php

/**
 * CKEditor - The text editor for the Internet - http://ckeditor.com
 * Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses of your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * @file
 * CKEditor Module for Drupal 7.x
 *
 * This module allows Drupal to replace textarea fields with CKEditor.
 *
 * CKEditor is an online rich text editor that can be embedded inside web pages.
 * It is a WYSIWYG (What You See Is What You Get) editor which means that the
 * text edited in it looks as similar as possible to the results end users will
 * see after the document gets published. It brings to the Web popular editing
 * features found in desktop word processors such as Microsoft Word and
 * OpenOffice.org Writer. CKEditor is truly lightweight and does not require any
 * kind of installation on the client computer.
 */

function ckeditor_user_customize(&$form, &$form_state, $form_id) {

    module_load_include('inc', 'ckeditor', 'includes/ckeditor.lib');
    
    $data = $form['#user']->data;
    
    $default = ckeditor_user_get_setting_default();
    $toolbar_options = ckeditor_load_toolbar_options();
    $skin_options = ckeditor_load_skin_options();
    $lang_options = ckeditor_load_lang_options();
    
    // because the settings are saved as strings we need to test for the string 'true'
    if (user_access('customize ckeditor')) {
        $form['ckeditor'] = array(
            '#type' => 'fieldset',
            '#title' => t('Rich text editor settings'),
            '#weight' => 10,
            '#collapsible' => TRUE,
            '#collapsed' => TRUE
        );

        $form['ckeditor']['ckeditor_default'] = array(
            '#type' => 'radios',
            '#title' => t('Default state'),
            '#default_value' => isset($data['ckeditor_default']) ? $data['ckeditor_default'] : $default['default'],
            '#options' => array(
                't' => t('Enabled'),
                'f' => t('Disabled')
            ),
            '#description' => t('Should rich text editing be enabled or disabled by default in textarea fields? If disabled, the rich text editor may still be enabled by using toggle.'),
        );

        $form['ckeditor']['ckeditor_show_toggle'] = array(
            '#type' => 'radios',
            '#title' => t('Show the disable/enable rich text editor toggle'),
            '#default_value' => isset($data['ckeditor_show_toggle']) ? $data['ckeditor_show_toggle'] : $default['show_toggle'],
            '#options' => array(
                't' => t('Yes'),
                'f' => t('No')
            ),
            '#description' => t('Whether or not to show the disable/enable rich text editor toggle below the textarea.'),
        );
/*
        $form['ckeditor']['ckeditor_popup'] = array(
            '#type' => 'radios',
            '#title' => t('Use CKEditor in a popup window'),
            '#default_value' => isset($data['ckeditor_popup']) ? $data['ckeditor_popup'] : $default['popup'],
            '#options' => array(
                'f' => t('No'),
                't' => t('Yes')
            ),
            '#description' => t('If this option is enabled, a link to a popup window will be used instead of a textarea replace.'),
        );
*/
        $form['ckeditor']['ckeditor_skin'] = array(
            '#type' => 'select',
            '#title' => t('Skin'),
            '#default_value' => isset($data['ckeditor_skin']) ? $data['ckeditor_skin'] : $default['skin'],
            '#options' => $skin_options,
            '#description' => t('Choose a CKEditor skin.'),
        );

        $form['ckeditor']['ckeditor_expand'] = array(
            '#type' => 'select',
            '#title' => t('Toolbar state on startup'),
            '#default_value' => isset($data['ckeditor_expand']) ? $data['ckeditor_expand'] : $default['expand'],
            '#options' => array(
                't' => t('Expanded'),
                'f' => t('Collapsed')
            ),
            '#description' => t('The toolbar will start in an expanded or collapsed state.'),
        );

        $form['ckeditor']['ckeditor_width'] = array(
            '#type' => 'textfield',
            '#title' => t('Editor width'),
            '#default_value' => isset($data['ckeditor_width']) ? $data['ckeditor_width'] : $default['width'],
            '#description' => t('Editor interface width in pixels or percent.') . ' ' . t('Examples') . ': 400 ' . t('or') . ' 100%.',
            '#size' => 40,
            '#maxlength' => 128,
        );

        $form['ckeditor']['ckeditor_lang'] = array(
            '#type' => 'select',
            '#title' => t('Language'),
            '#default_value' => isset($data['ckeditor_lang']) ? $data['ckeditor_lang'] : $default['lang'],
            '#options' => $lang_options,
            '#description' => t('The language for the CKEditor interface.')
        );

        $form['ckeditor']['ckeditor_auto_lang'] = array(
            '#type' => 'radios',
            '#title' => t('Auto-detect language'),
            '#default_value' => isset($data['ckeditor_auto_lang']) ? $data['ckeditor_auto_lang'] : $default['auto_lang'],
            '#options' => array(
                't' => t('Yes'),
                'f' => t('No')
            ),
            '#description' => t('Automatically detect the user language.')
        );

        $form['#validate'][] = 'ckeditor_user_customize_form_validate';

    }

}

function ckeditor_user_customize_form_validate(&$form, &$form_state) {
/*
    if (isset($form_state['values']['ckeditor_default'], $form_state['values']['ckeditor_popup']) && $form_state['values']['ckeditor_default'] == 't' && $form_state['values']['ckeditor_popup'] == 't') {
        form_set_error('ckeditor_popup', t('If CKEditor is enabled by default, the popup window must be disabled.'));
    }

    if (isset($form_state['values']['ckeditor_show_toggle'], $form_state['values']['ckeditor_popup']) && $form_state['values']['ckeditor_show_toggle'] == 't' && $form_state['values']['ckeditor_popup'] == 't') {
        form_set_error('ckeditor_popup', t('If toggle is enabled, the popup window must be disabled.'));
    }
*/
    if (isset($form_state['values']['ckeditor_width']) && !preg_match('/^\d+%?$/', $form_state['values']['ckeditor_width'])) {
        form_set_error('ckeditor_width', t('Enter a valid width value.') . ' ' . t('Examples:') . ': 400 ' . t('or') . ' 100%.');
    }

}

function ckeditor_user_presave(&$edit, $account, $category) {
    if (user_access('customize ckeditor')) {
        module_load_include('inc', 'ckeditor', 'includes/ckeditor.lib');
        $default = ckeditor_user_get_setting_default();

        $edit['data']['ckeditor_default'] = isset($edit['ckeditor_default']) ? $edit['ckeditor_default'] : $default['default'];
        $edit['data']['ckeditor_show_toggle'] = isset($edit['ckeditor_show_toggle']) ? $edit['ckeditor_show_toggle'] : $default['show_toggle'];
        $edit['data']['ckeditor_popup'] = isset($edit['ckeditor_popup']) ? $edit['ckeditor_popup'] : $default['popup'];
        $edit['data']['ckeditor_skin'] = isset($edit['ckeditor_skin']) ? $edit['ckeditor_skin'] : $default['skin'];
        $edit['data']['ckeditor_expand'] = isset($edit['ckeditor_expand']) ? $edit['ckeditor_expand'] : $default['expand'];
        $edit['data']['ckeditor_width'] = isset($edit['ckeditor_width']) ? $edit['ckeditor_width'] : $default['width'];
        $edit['data']['ckeditor_lang'] = isset($edit['ckeditor_lang']) ? $edit['ckeditor_lang'] : $default['lang'];
        $edit['data']['ckeditor_auto_lang'] = isset($edit['ckeditor_auto_lang']) ? $edit['ckeditor_auto_lang'] : $default['auto_lang'];
    }
}