a_arr_Settings = MCI_Footnotes_getOptions(false);
}
/**
* add WordPress hooks
* @since 1.3
*/
public function Register() {
// adds the custom css to the header
add_action('wp_head', array($this, "Header"));
// stops listening to the output and replaces the footnotes
add_action('get_footer', array($this, "Footer"));
// adds the love and share me slug to the footer
add_action('wp_footer', array($this, "Love"));
// moves these contents through the replacement function
add_filter('the_content', array($this, "Content"));
add_filter('the_excerpt', array($this, "Excerpt"));
add_filter('widget_title', array($this, "WidgetTitle"));
add_filter('widget_text', array($this, "WidgetText"));
}
/**
* outputs the custom css to the header
* @since 1.3
*/
public function Header() {
?>
exec($p_str_Content, $this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCE_CONTAINER_PLACE] == "post_end" ? true : false);
}
/**
* replaces footnotes tags in the post excerpt
* @since 1.3
* @param string $p_str_Content
* @return string
*/
public function Excerpt($p_str_Content) {
require_once(dirname( __FILE__ ) . "/convert.php");
// search in the excerpt only if activated
if (MCI_Footnotes_Convert::toBool($this->a_arr_Settings[FOOTNOTES_INPUT_SEARCH_IN_EXCERPT])) {
return $this->exec($p_str_Content, false);
}
// returns content
return $p_str_Content;
}
/**
* replaces footnotes tags in the widget title
* @since 1.3
* @param string $p_str_Content
* @return string
*/
public function WidgetTitle($p_str_Content) {
// returns content
return $p_str_Content;
}
/**
* replaces footnotes tags in the widget text
* @since 1.3
* @param string $p_str_Content
* @return string
*/
public function WidgetText($p_str_Content) {
// returns content
return $this->exec($p_str_Content, $this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCE_CONTAINER_PLACE] == "post_end" ? true : false);
}
/**
* outputs the reference container to the footer
* @since 1.3
*/
public function Footer() {
if ($this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCE_CONTAINER_PLACE] == "footer") {
echo $this->ReferenceContainer();
}
}
/**
* output the love me slug in the footer
* @since 1.3
*/
public function Love() {
// get setting for love and share this plugin and convert it to boolean
$l_str_LoveMeText = $this->a_arr_Settings[FOOTNOTES_INPUT_LOVE];
// check if the admin allows to add a link to the footer
if (empty($l_str_LoveMeText) || strtolower($l_str_LoveMeText) == "no" || !self::$a_bool_AllowLoveMe) {
return;
}
// get random love me text
if (strtolower($l_str_LoveMeText) == "random") {
$l_str_LoveMeText = "text-" . rand(1,3);
}
switch ($l_str_LoveMeText) {
case "text-1":
$l_str_LoveMeText = sprintf(__('I %s %s', FOOTNOTES_PLUGIN_NAME), FOOTNOTES_LOVE_SYMBOL, FOOTNOTES_PLUGIN_PUBLIC_NAME_LINKED);
break;
case "text-2":
$l_str_LoveMeText = sprintf(__('this site uses the awesome %s Plugin', FOOTNOTES_PLUGIN_NAME), FOOTNOTES_PLUGIN_PUBLIC_NAME_LINKED);
break;
case "text-3":
default:
$l_str_LoveMeText = sprintf(__('extra smooth %s', FOOTNOTES_PLUGIN_NAME), FOOTNOTES_PLUGIN_PUBLIC_NAME_LINKED);
break;
}
echo '' . $l_str_LoveMeText . '
';
}
/**
* replaces all footnotes in the given content
* loading settings if not happened yet since 1.0-gamma
* @since 1.0
* @param string $p_str_Content
* @param bool $p_bool_OutputReferences [default: true]
* @return string
*/
public function exec($p_str_Content, $p_bool_OutputReferences = true) {
// replace all footnotes in the content
$p_str_Content = $this->Lookup($p_str_Content, true);
$p_str_Content = $this->Lookup($p_str_Content, false);
// add the reference list if set
if ($p_bool_OutputReferences) {
$p_str_Content = $p_str_Content . $this->ReferenceContainer();
}
// checks if the user doesn't want to have a 'love me' on current page
// @since 1.1.1
if (strpos($p_str_Content, FOOTNOTES_NO_SLUGME_PLUG) !== false) {
self::$a_bool_AllowLoveMe = false;
$p_str_Content = str_replace(FOOTNOTES_NO_SLUGME_PLUG, "", $p_str_Content);
}
// return the replaced content
return $p_str_Content;
}
/**
* replace all footnotes in the given string and adds them to an array
* using a personal starting and ending tag for the footnotes since 1.0-gamma
* @since 1.0
* @param string $p_str_Content
* @param bool $p_bool_ConvertHtmlChars
* @return string
*/
public function Lookup($p_str_Content, $p_bool_ConvertHtmlChars = true) {
require_once(dirname( __FILE__ ) . "/convert.php");
// contains the index for the next footnote on this page
$l_int_FootnoteIndex = count(self::$a_arr_Footnotes) + 1;
// contains the starting position for the lookup of a footnote
$l_int_PosStart = 0;
// contains the footnote template
$l_str_FootnoteTemplate = file_get_contents(FOOTNOTES_TEMPLATES_DIR . "footnote.html");
// get footnote starting tag
$l_str_StartingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_START];
// get footnote ending tag
$l_str_EndingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_END];
// get footnote counter style
$l_str_CounterStyle = $this->a_arr_Settings[FOOTNOTES_INPUT_COUNTER_STYLE];
// get footnote layout before index
$l_str_BeforeIndex = $this->a_arr_Settings[FOOTNOTES_INPUT_CUSTOM_STYLING_BEFORE];
// get footnote layout after index
$l_str_AfterIndex = $this->a_arr_Settings[FOOTNOTES_INPUT_CUSTOM_STYLING_AFTER];
if ($l_str_StartingTag == "userdefined" || $l_str_EndingTag == "userdefined") {
// get user defined footnote starting tag
$l_str_StartingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_START_USERDEFINED];
// get user defined footnote ending tag
$l_str_EndingTag = $this->a_arr_Settings[FOOTNOTES_INPUT_PLACEHOLDER_END_USERDEFINED];
}
// decode html special chars
if ($p_bool_ConvertHtmlChars) {
$l_str_StartingTag = htmlspecialchars($l_str_StartingTag);
$l_str_EndingTag = htmlspecialchars($l_str_EndingTag);
}
// if footnotes short code is empty, return the content without changes
if (empty($l_str_StartingTag) || empty($l_str_EndingTag)) {
return $p_str_Content;
}
// check for a footnote placeholder in the current page
do {
// get first occurrence of a footnote starting tag
$l_int_PosStart = strpos($p_str_Content, $l_str_StartingTag, $l_int_PosStart);
// tag not found
if ($l_int_PosStart === false) {
break;
}
// get first occurrence of a footnote ending tag after the starting tag
$l_int_PosEnd = strpos($p_str_Content, $l_str_EndingTag, $l_int_PosStart);
// tag not found
if ($l_int_PosEnd === false) {
break;
}
// get length of footnote text
$l_int_Length = $l_int_PosEnd - $l_int_PosStart;
// get text inside footnote
$l_str_FootnoteText = substr($p_str_Content, $l_int_PosStart + strlen($l_str_StartingTag), $l_int_Length - strlen($l_str_StartingTag));
// set replacing string for the footnote
$l_str_ReplaceText = str_replace("[[FOOTNOTE INDEX]]", MCI_Footnotes_Convert::Index($l_int_FootnoteIndex, $l_str_CounterStyle), $l_str_FootnoteTemplate);
$l_str_ReplaceText = str_replace("[[FOOTNOTE TEXT]]", $l_str_FootnoteText, $l_str_ReplaceText);
$l_str_ReplaceText = str_replace("[[FOOTNOTE BEFORE]]", $l_str_BeforeIndex, $l_str_ReplaceText);
$l_str_ReplaceText = str_replace("[[FOOTNOTE AFTER]]", $l_str_AfterIndex, $l_str_ReplaceText);
$l_str_ReplaceText = preg_replace('@[\s]{2,}@',' ',$l_str_ReplaceText);
// replace footnote in content
$p_str_Content = substr_replace($p_str_Content, $l_str_ReplaceText, $l_int_PosStart, $l_int_Length + strlen($l_str_EndingTag));
// add footnote only if not empty
if (!empty($l_str_FootnoteText)) {
// set footnote to the output box at the end
self::$a_arr_Footnotes[] = $l_str_FootnoteText;
// increase footnote index
$l_int_FootnoteIndex++;
}
// add offset to the new starting position
$l_int_PosStart += $l_int_Length + strlen($l_str_EndingTag);
} while (true);
// return content
return $p_str_Content;
}
/**
* looks through all footnotes that has been replaced in the current content and
* adds a reference to the footnote at the end of the content
* function to collapse the reference container since 1.0-beta
* @since 1.0
* @return string
*/
public function ReferenceContainer() {
// no footnotes has been replaced on this page
if (empty(self::$a_arr_Footnotes)) {
return "";
}
require_once(dirname( __FILE__ ) . "/convert.php");
// get setting for combine identical footnotes and convert it to boolean
$l_bool_CombineIdentical = MCI_Footnotes_Convert::toBool($this->a_arr_Settings[FOOTNOTES_INPUT_COMBINE_IDENTICAL]);
// get setting for preferences label
$l_str_ReferencesLabel = $this->a_arr_Settings[FOOTNOTES_INPUT_REFERENCES_LABEL];
// get setting for collapse reference footnotes and convert it to boolean
$l_bool_CollapseReference = MCI_Footnotes_Convert::toBool($this->a_arr_Settings[FOOTNOTES_INPUT_COLLAPSE_REFERENCES]);
// get footnote counter style
$l_str_CounterStyle = $this->a_arr_Settings[FOOTNOTES_INPUT_COUNTER_STYLE];
// get hyperlink symbol index
$l_int_HyperlinkSymbolIndex = $this->a_arr_Settings[FOOTNOTES_INPUT_CUSTOM_HYPERLINK_SYMBOL];
// get html arrow
$l_str_HyperlinkSymbol = MCI_Footnotes_Convert::getArrow($l_int_HyperlinkSymbolIndex);
// set html arrow to the first one if invalid index defined
if (is_array($l_str_HyperlinkSymbol)) {
$l_str_HyperlinkSymbol = MCI_Footnotes_Convert::getArrow(0);
}
// get user defined hyperlink symbol
$l_int_HyperlinkSymbol_UserDefined = $this->a_arr_Settings[FOOTNOTES_INPUT_CUSTOM_HYPERLINK_SYMBOL_USER];
if (!empty($l_int_HyperlinkSymbol_UserDefined)) {
// override hyperlink symbol with user defined symbol
$l_str_HyperlinkSymbol = $l_int_HyperlinkSymbol_UserDefined;
}
// add expand/collapse buttons to the reference label if collapsed by default
// @since 1.2.2
$l_str_CollapseButtons = "";
if ($l_bool_CollapseReference) {
$l_str_CollapseButtons = ' [ ]';
}
// output string, prepare it with the reference label as headline
$l_str_Output = '';
// add a box around the footnotes
$l_str_Output .= '