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footnotes/includes/wysiwyg-editor.php

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<?php
/**
* Created by PhpStorm.
* User: Stefan
* Date: 24.05.14
* Time: 14:47
* Version: 1.2.0
* Since: 1.2.0
*/
/**
* adds a new button to the WYSIWYG editor for pages and posts
* @param array $buttons
* @return array
* @since 1.2.0
*/
function footnotes_wysiwyg_editor_functions($buttons) {
array_push($buttons, FOOTNOTES_PLUGIN_NAME);
return $buttons;
}
/**
* includes a javascript file to have a on-click function for the new button in the WYSIWYG editor
* @param array $plugin_array
* @return array
* @since 1.2.0
*/
function footnotes_wysiwyg_editor_buttons($plugin_array) {
$plugin_array[FOOTNOTES_PLUGIN_NAME] = plugins_url('/../js/wysiwyg-editor.js', __FILE__);
return $plugin_array;
}
/**
* adds a new button to the plain text editor for pages and posts
* @since 1.2.0
*/
function footnotes_text_editor_buttons() {
?>
<script type="text/javascript">
/**
* adds a tag in at the beginning and at the end of a selected text in the specific textarea
* @param string elementID
* @param string openTag
* @param string closeTag
*/
function footnotes_wrapText(elementID, openTag, closeTag) {
var textArea = jQuery('#' + elementID);
var len = textArea.val().length;
var start = textArea[0].selectionStart;
var end = textArea[0].selectionEnd;
var selectedText = textArea.val().substring(start, end);
var replacement = openTag + selectedText + closeTag;
textArea.val(textArea.val().substring(0, start) + replacement + textArea.val().substring(end, len));
}
/**
* adds a new button to the plain text editor
*/
QTags.addButton( 'footnotes_quicktag_button', 'footnotes', footnotes_text_editor_callback );
/**
* callback function when the button is clicked
* executes a ajax call to get the start and end tag for the footnotes and
* adds them in before and after the selected text
*/
function footnotes_text_editor_callback() {
jQuery.ajax({
type: 'POST',
url: '/wp-admin/admin-ajax.php',
data: {
action: 'footnotes_getTags',
data: ''
},
success: function(data, textStatus, XMLHttpRequest){
var l_arr_Tags = JSON.parse(data);
footnotes_wrapText("content", l_arr_Tags['start'], l_arr_Tags['end']);
},
error: function(MLHttpRequest, textStatus, errorThrown){
}
});
}
</script>
<?php
}
/**
* callback function for the WYSIWYG editor button and the plain text editor button
* to get the start and end tag for the footnotes
* echos the tags as json-string ("start" | "end")
*/
function footnotes_wysiwyg_ajax_callback() {
require_once(dirname(__FILE__) . '/../includes/defines.php');
require_once(dirname(__FILE__) . '/../includes/plugin-settings.php');
/* load footnote settings */
$g_arr_FootnotesSettings = footnotes_filter_options(FOOTNOTE_SETTINGS_CONTAINER, Class_FootnotesSettings::$a_arr_Default_Settings, false);
/* get footnote starting tag */
$l_str_StartingTag = $g_arr_FootnotesSettings[FOOTNOTE_INPUTFIELD_PLACEHOLDER_START];
/*get footnote ending tag */
$l_str_EndingTag = $g_arr_FootnotesSettings[FOOTNOTE_INPUTFIELD_PLACEHOLDER_END];
if ($l_str_StartingTag == "userdefined" || $l_str_EndingTag == "userdefined") {
/* get user defined footnote starting tag */
$l_str_StartingTag = $g_arr_FootnotesSettings[FOOTNOTE_INPUTFIELD_PLACEHOLDER_START_USERDEFINED];
/*get user defined footnote ending tag */
$l_str_EndingTag = $g_arr_FootnotesSettings[FOOTNOTE_INPUTFIELD_PLACEHOLDER_END_USERDEFINED];
}
echo json_encode(array("start" => $l_str_StartingTag, "end" => $l_str_EndingTag));
exit;
}