//////////////////////////////////////////////////////////////////////////// // This is javascript file CHIM2WAY.JS by Eric Martz // Thanks to Tim Maffett of MDLI for showing me how to do this! // For a complete set of files to use as an example, see (and download) // Creating Chime Web Pages at http://www.umass.edu/microbio/chime // // Include this file in your chime page with a line in the such as: // // // In the body of your document, call chime_2way() like this: // // This inserts a 2-way command-line interface into the document. // // The present code is designed for the case in which the plug-in and // the command-line interface are in the same [frame in the same] document. // // The which invokes Chime must include: // MessageCallback="ChimeMsg" // // A WORD TO THE WISE: WHEN MODIFYING THESE FILES TO BUILD YOUR OWN CHIME // WEB PAGE, CHANGE AS LITTLE AS POSSIBLE AND MAKE ONLY ONE CHANGE AT A // TIME. IF YOU MAKE LOTS OF CHANGES AND RENAME LOTS OF THINGS, DEBUGGING // JAVASCRIPT CAN BE VERY FRUSTRATING AND SLOW. I KNOW! //////////////////////////////////////////////////////////////////////////// var lastcmd = ""; // save last command for Again button // This function puts Chime's messages in the message textarea. function ChimeMsg( buttonname, message ) { document.c2w_form.chimemessages.value = message + "\r\n" + document.c2w_form.chimemessages.value; document.c2w_form.chimemessages.value = del_after_line(50, document.c2w_form.chimemessages.value); } // This function writes the 2-way html form into the document. function Chime_2way(target_chime) { with (document) { open(); // Set up command-line form. // We don't need to submit the form to the SERVER. 'return false' // prevents this from happening. We just want to use the form // values internally in the CLIENT-side javascript. writeln("
"); // Command-line input slot. writeln(" Enter "); // We'll use Enter to execute the command line, so we don't need // an Execute button. But here's how you could do it if you // wanted to. // Command-line execution button // writeln(""); // writeln("
"); // 'Again' button to repeat last command if desired (perhaps edited). writeln(""); // Button to clear the message box writeln(""); writeln("
"); // Box to display Chime's messages writeln(""); writeln("
Messages from Chime appear most recent at the top in the box above."); writeln("(Only the last 50 lines are kept.)"); // end of this form writeln("
"); // close() forces the display of the page. close(); } } // This function sends the script to the Chime plug-in. // The mechanism is to create a new document in the tiny 'dummy' frame. // This new document contains a hidden button to execute the script. // The button executes immediately (does not need to be clicked). function ScriptToChime(target_chime, rasmol_script) { with (top.fr_dummy.document) { open(); writeln(""); writeln(""); writeln(""); close(); } } // This function sends the command line to Chime and then cleans up. function exec_script(target_chime) { ScriptToChime(target_chime, document.c2w_form.rasmolscript.value); lastcmd = document.c2w_form.rasmolscript.value; // save this command for Again document.c2w_form.rasmolscript.value = ""; // clear the command slot } function again_button() { document.c2w_form.rasmolscript.value = lastcmd; // put last command in slot document.c2w_form.rasmolscript.focus(); // put cursor in slot } // END OF CHIM2WAY.JS