<?php
/*
Question2Answer by Gideon Greenspan and contributors
http://www.question2answer.org/
File: qa-plugin/wysiwyg-editor/qa-wysiwyg-editor.php
Description: Editor module class for WYSIWYG editor plugin
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
More about this license: http://www.question2answer.org/license.php
*/
class qa_wysiwyg_editor
{
private $urltoroot;
public function load_module($directory, $urltoroot)
{
$this->urltoroot = $urltoroot;
}
public function option_default($option)
{
if ($option == 'wysiwyg_editor_upload_max_size') {
require_once QA_INCLUDE_DIR.'app/upload.php';
return min(qa_get_max_upload_size(), 1048576);
}
}
public function admin_form(&$qa_content)
{
require_once QA_INCLUDE_DIR.'app/upload.php';
$saved = false;
if (qa_clicked('wysiwyg_editor_save_button')) {
qa_opt('wysiwyg_editor_upload_images', (int)qa_post_text('wysiwyg_editor_upload_images_field'));
qa_opt('wysiwyg_editor_upload_all', (int)qa_post_text('wysiwyg_editor_upload_all_field'));
qa_opt('wysiwyg_editor_upload_max_size', min(qa_get_max_upload_size(), 1048576*(float)qa_post_text('wysiwyg_editor_upload_max_size_field')));
$saved = true;
}
qa_set_display_rules($qa_content, array(
'wysiwyg_editor_upload_all_display' => 'wysiwyg_editor_upload_images_field',
'wysiwyg_editor_upload_max_size_display' => 'wysiwyg_editor_upload_images_field',
));
// handle AJAX requests to 'wysiwyg-editor-ajax'
$js = array(
'function wysiwyg_editor_ajax(totalEdited) {',
' $.ajax({',
' url: ' . qa_js(qa_path('wysiwyg-editor-ajax')) . ',',
' success: function(response) {',
' var postsEdited = parseInt(response, 10);',
' var $btn = $("#wysiwyg_editor_ajax");',
' if (isNaN(postsEdited)) {',
' $btn.text("ERROR");',
' }',
' else if (postsEdited < 5) {',
' $btn.text("All posts converted.");',
' }',
' else {',
' totalEdited += postsEdited;',
' $btn.text("Updating posts... " + totalEdited)',
' window.setTimeout(function() {',
' wysiwyg_editor_ajax(totalEdited);',
' }, 1000);',
' }',
' }',
' });',
'}',
'$("#wysiwyg_editor_ajax").click(function() {',
' wysiwyg_editor_ajax(0);',
' return false;',
'});',
);
$ajaxHtml = 'Update broken images from old CKeditor Smiley plugin: ' .
'<button id="wysiwyg_editor_ajax">click here</button> ' .
'<script>' . implode("\n", $js) . '</script>';
return array(
'ok' => $saved ? 'WYSIWYG editor settings saved' : null,
'fields' => array(
array(
'label' => 'Allow images to be uploaded',
'type' => 'checkbox',
'value' => (int)qa_opt('wysiwyg_editor_upload_images'),
'tags' => 'name="wysiwyg_editor_upload_images_field" id="wysiwyg_editor_upload_images_field"',
),
array(
'id' => 'wysiwyg_editor_upload_all_display',
'label' => 'Allow other content to be uploaded, e.g. Flash, PDF',
'type' => 'checkbox',
'value' => (int)qa_opt('wysiwyg_editor_upload_all'),
'tags' => 'name="wysiwyg_editor_upload_all_field"',
),
array(
'id' => 'wysiwyg_editor_upload_max_size_display',
'label' => 'Maximum size of uploads:',
'suffix' => 'MB (max '.$this->bytes_to_mega_html(qa_get_max_upload_size()).')',
'type' => 'number',
'value' => $this->bytes_to_mega_html(qa_opt('wysiwyg_editor_upload_max_size')),
'tags' => 'name="wysiwyg_editor_upload_max_size_field"',
),
array(
'type' => 'custom',
'html' => $ajaxHtml,
),
),
'buttons' => array(
array(
'label' => 'Save Changes',
'tags' => 'name="wysiwyg_editor_save_button"',
),
),
);
}
public function calc_quality($content, $format)
{
if ($format == 'html')
return 1.0;
elseif ($format == '')
return 0.8;
else
return 0;
}
public function get_field(&$qa_content, $content, $format, $fieldname, $rows)
{
$scriptsrc = $this->urltoroot.'ckeditor/ckeditor.js?'.QA_VERSION;
$alreadyadded = false;
if (isset($qa_content['script_src'])) {
foreach ($qa_content['script_src'] as $testscriptsrc) {
if ($testscriptsrc == $scriptsrc)
$alreadyadded = true;
}
}
if (!$alreadyadded) {
$uploadimages = qa_opt('wysiwyg_editor_upload_images');
$uploadall = $uploadimages && qa_opt('wysiwyg_editor_upload_all');
$imageUploadUrl = qa_js( qa_path('wysiwyg-editor-upload', array('qa_only_image' => true)) );
$fileUploadUrl = qa_js( qa_path('wysiwyg-editor-upload') );
$qa_content['script_src'][] = $scriptsrc;
$qa_content['script_lines'][] = array(
// Most CKeditor config occurs in ckeditor/config.js
"var qa_wysiwyg_editor_config = {",
// File uploads
($uploadimages ? " filebrowserImageUploadUrl: $imageUploadUrl," : ""),
($uploadall ? " filebrowserUploadUrl: $fileUploadUrl," : ""),
// Set language to Q2A site language, falling back to English if not available.
" defaultLanguage: 'en',",
" language: " . qa_js(qa_opt('site_language')) . "",
"};",
);
}
if ($format == 'html') {
$html = $content;
$text = $this->html_to_text($content);
}
else {
$text = $content;
$html = qa_html($content, true);
}
return array(
'tags' => 'name="'.$fieldname.'"',
'value' => qa_html($text),
'rows' => $rows,
'html_prefix' => '<input name="'.$fieldname.'_ckeditor_ok" id="'.$fieldname.'_ckeditor_ok" type="hidden" value="0"><input name="'.$fieldname.'_ckeditor_data" id="'.$fieldname.'_ckeditor_data" type="hidden" value="'.qa_html($html).'">',
);
}
public function load_script($fieldname)
{
return
"if (qa_ckeditor_".$fieldname." = CKEDITOR.replace(".qa_js($fieldname).", qa_wysiwyg_editor_config)) { " .
"qa_ckeditor_".$fieldname.".setData(document.getElementById(".qa_js($fieldname.'_ckeditor_data').").value); " .
"document.getElementById(".qa_js($fieldname.'_ckeditor_ok').").value = 1; " .
"}";
}
public function focus_script($fieldname)
{
return "if (qa_ckeditor_".$fieldname.") qa_ckeditor_".$fieldname.".focus();";
}
public function update_script($fieldname)
{
return "if (qa_ckeditor_".$fieldname.") qa_ckeditor_".$fieldname.".updateElement();";
}
public function read_post($fieldname)
{
if (qa_post_text($fieldname.'_ckeditor_ok')) {
// CKEditor was loaded successfully
$html = qa_post_text($fieldname);
// remove <p>, <br>, etc... since those are OK in text
$htmlformatting = preg_replace('/<\s*\/?\s*(br|p)\s*\/?\s*>/i', '', $html);
if (preg_match('/<.+>/', $htmlformatting)) {
// if still some other tags, it's worth keeping in HTML
// qa_sanitize_html() is ESSENTIAL for security
return array(
'format' => 'html',
'content' => qa_sanitize_html($html, false, true),
);
}
else {
// convert to text
qa_load_module('viewer', '');
return array(
'format' => '',
'content' => $this->html_to_text($html),
);
}
}
else {
// CKEditor was not loaded so treat it as plain text
return array(
'format' => '',
'content' => qa_post_text($fieldname),
);
}
}
/**
* @deprecated This function will become private in Q2A 1.8. It is specific to this plugin and
* should not be used by outside code.
*/
public function html_to_text($html)
{
$viewer = qa_load_module('viewer', '');
return $viewer->get_text($html, 'html', array());
}
/**
* @deprecated This function will become private in Q2A 1.8. It is specific to this plugin and
* should not be used by outside code.
*/
public function bytes_to_mega_html($bytes)
{
return qa_html(number_format($bytes/1048576, 1));
}
}