Add FileExtensionTextMode plugin

a plugin to customize the join of file extension and the text mode.

also add an API to the editor for this.

components/fileExtTextMode/fileExtTextModeForm.php

@@ -0,0 +1,56 @@
+<?php
+require_once '../../common.php';
+require_once 'defaultValues.php';
+
+Common::checkSession();
+
+//return a select-field with all availiable text modes, the one in the param is selected
+function getTextModeSelect($extension){
+	global $availiableTextModes;
+	$extension = trim(strtolower($extension));
+	$find = false;
+	$ret = '<select style="width: 100px; display: inline;" name="textMode[]" class="textMode">'."\n";
+	foreach($availiableTextModes as $textmode){
+		$ret .= '	<option';
+		if($textmode == $extension){
+			$ret .= ' selected="selected"';
+			$find = true;
+		}
+		$ret .='>'.$textmode.'</option>'."\n";
+	}
+	
+	if(!$find && $extension != ''){
+		$ret .= '	<option selected="selected">'.$textmode.'</option>'."\n";
+	}
+	
+	$ret .= '</select>'."\n";
+	
+	return $ret;
+}
+
+$ext = false;
+//ignore warnings
+$ext = @Common::getJSON('fileExtensions.php');
+
+if(!is_array($ext)){
+	//default extensions
+	$ext = $defaultExtensions;
+}
+
+if(!@ksort($ext) || !@ksort($availiableTextModes)){
+	die(json_encode(array('status' => 'error', 'msg' => 'Internal PHP error.') ));
+}
+
+//echo '<form onSubmit="return codiad.fileExtTextMode.sendForm();">'."\n";
+echo '	<div id="FileExtTextModeDiv" style="height: 300px; overflow-y: scroll; min-height: 300px;">';
+
+	foreach($ext as $ex => $mode){
+		echo '<input class="FileExtension" style="width: 100px; display: inline;" type="text" name="extension[]" value="'.$ex.'" /> &nbsp;&nbsp;';
+		echo getTextModeSelect($mode) . "<br/>\n";
+	}
+
+echo '	</div>';
+echo '<a onClick="codiad.fileExtTextMode.addFieldToForm()">add field... </a>'."<br/>\n";
+echo '<input type="submit" onClick="codiad.fileExtTextMode.sendForm();" />';
+//echo '</form>'."\n";
+?>