#137 - user's custom functions in tagui_custom.js

This commit adds support for letting users create a tagui_custom.js file in tagui/src folder, which they can define global helper functions for use in their automation scripts.

tagui_custom.js will persist with newer TagUI releases as there isn't a tagui_custom.js file as part of the repo.

src/tagui_header.js

@@ -1198,4 +1198,3 @@ function getTimeoutAndCheckNextStepFunction(timeout, then, methodName, defaultTi
     return timeout;
 }
 
-// flow path for save_text and snap_image

src/tagui_parse.php

@@ -47,6 +47,14 @@
 while(!feof($config_file)) {fwrite($output_file,fgets($config_file));} fclose($config_file);
 while(!feof($header_file)) {fwrite($output_file,fgets($header_file));} fclose($header_file);
 
+// append custom functions file created by user if the file exists
+if (file_exists('tagui_custom.js')) {
+$custom_file = fopen('tagui_custom.js','r') or die("ERROR - cannot open tagui_custom.js" . "\n");
+while(!feof($custom_file)) {fwrite($output_file,fgets($custom_file));} fwrite($output_file,"\n"); fclose($custom_file);}
+
+// append comment on flow path variable in casperjs script
+fwrite($output_file,"// flow path for save_text and snap_image\n");
+
 // save flow path in casperjs script to be used by save_text and snap_image
 // casperjs/phantomjs do not seem to support \ for windows paths, replace with / to work
 // below marker for appending url_intent when flow file does not start with comments or url