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interactive/triggers_for_javascript_actions

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/* $Id: triggers_for_javascript_actions.java,v 1.4 2013/01/15 10:12:00 stm Exp $

 * Triggers for JavaScript actions:

 * Demonstrate all possibilities to trigger a JavaScript action (except of form

 * fields).

 *

 * Trigger JavaScript actions by clicking on a link: Use the "activate" option

 * in create_annotation().

 * Trigger JavaScript actions by clicking on a bookmark: Use the "activate"

 * option in create_bookmark().

 * Trigger JavaScript actions upon opening or closing a page: Use the "action"

 * option in begin_page_ext() or PDF_end_page_ext() with the triggers "open" and

 * "close".

 * Trigger JavaScript actions upon opening, closing, printing, or saving the

 * document: Use the "action" option in PDF_end_document() with the triggers

 * "open", "didprint", "didsave", "willclose", "willprint", and "willsave".

 *

 * Required software: PDFlib/PDFlib+PDI/PPS 9

 * Required data: none

 */

package com.pdflib.cookbook.pdflib.interactive;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class triggers_for_javascript_actions

{

    public static void main (String argv[])

    {

    /* This is where the data files are. Adjust as necessary. */

    String searchpath = "../input";

    String outfile = "triggers_for_javascript_actions.pdf";

    String title = "Triggers for Javascript Actions";


    pdflib p = null;

    String optlist;

    int font, action;


    try {

        p = new pdflib();


        p.set_option("searchpath={" + searchpath + "}");


        /* This means we must check return values of load_font() etc. */

        p.set_option("errorpolicy=return");


        if (p.begin_document(outfile, "") == -1)

        throw new Exception("Error: " + p.get_errmsg());


        p.set_info("Creator", "PDFlib Cookbook");

        p.set_info("Title", title + " $Revision: 1.4 $");


        font = p.load_font("Helvetica", "unicode", "");

        if (font == -1)

            throw new Exception("Error: " + p.get_errmsg());

       

        /* Start an A4 page */

        p.begin_page_ext(595, 842, "");

       

        p.setfont(font, 12);

       

        /* Output some descriptive text */

        p.fit_textline("Click this link", 30, 750, "");

        p.fit_textline("Click the bookmark on the left", 20, 700, "");

        p.fit_textline("Print the document", 20, 670, "");

        p.fit_textline("Save the document", 20, 640, "");

        p.fit_textline("Close the document", 20, 610, "");

       

       

        /* -------------------------------------------------

         * Trigger a JavaScript action by clicking on a link

         * -------------------------------------------------

         */

       

        /* Create the JavaScript action */

        action = p.create_action("JavaScript", "script {" +

            "app.alert(\"Action triggered by a Link annotation\");}");


        /* Create the "Link" annotation which activates the action */

        p.create_annotation(20, 740, 110, 765, "Link",

            "action {activate={" + action + " " + "} }");

       

       

        /* -----------------------------------------------------

         * Trigger a JavaScript action by clicking on a bookmark

         * -----------------------------------------------------

         */

               

        /* Create the JavaScript action */

        action = p.create_action("JavaScript", "script {" +

            "app.alert(\"Action triggered by a bookmark\");}");

       

        /* Create the bookmark which activates the action */

        p.create_bookmark("Click this bookmark", "action {activate={" +

            action + "} }");


       

        /* ---------------------------------------------------------

         * Trigger JavaScript actions upon opening or closing a page

         * ---------------------------------------------------------

         */

           

        /* Create a JavaScript action to be triggered after opening the page */

        int page_open = p.create_action("JavaScript", "script {" +

            "app.alert(\"Action triggered after opening the page (open)\");}");

           

        /* Create a JavaScript action to be triggered after closing the page */

        int page_close = p.create_action("JavaScript", "script {" +

            "app.alert(\"Action triggered after closing the page (close)\");}");

                 

        /* Close the page. For the page triggers "open" and "close", supply the

         * JavaScript page actions defined above.

         */

        optlist = "action {open=" + page_open + " close=" + page_close + "}";

           

        p.end_page_ext(optlist);

       

       

        /* --------------------------------------------------------------

         * Trigger JavaScript actions upon opening, closing, printing, or

         * saving the document.

         * --------------------------------------------------------------

         */

       

        /* Create a JavaScript action to be triggered upon opening the

         * document.

         */

        int open = p.create_action("JavaScript", "script {app.alert(" +

            "\"Action triggered upon opening the document (open)\");}");

       

        /* Create a JavaScript action to be triggered upon closing the

         * document.

         */

        int willclose = p.create_action("JavaScript", "script {app.alert(" +

            "\"Action triggered upon closing the document (willclose)\");}");

       

        /* Create a JavaScript action to be triggered before saving the

         * document.

         */

        int willsave = p.create_action("JavaScript", "script {app.alert(" +

            "\"Action triggered before saving the document (willsave)\");}");

       

        /* Create a JavaScript action to be triggered after saving the

         * document.

         */

        int didsave = p.create_action("JavaScript", "script {app.alert(" +

            "\"Action triggered after saving the document (didsave)\");}");

       

        /* Create a JavaScript action to be triggered before printing the

         * document.

         */

        int willprint = p.create_action("JavaScript", "script {app.alert(" +

            "\"Action triggered before printing the document (willprint)\");}");

       

        /* Create a JavaScript action to be triggered after printing the

         * document.

         */

        int didprint = p.create_action("JavaScript", "script {app.alert(" +

            "\"Action triggered after printing the document (didprint)\");}");

       

        /* Define an option list for end_document(). All possible document

         * triggers will be supplied with the actions defined above.

         */

        optlist = "action {open=" + open + " willclose=" + willclose +

            " willprint=" + willprint + " didprint=" + didprint +

            " willsave=" + willsave + " didsave=" + didsave + "}";


        p.end_document(optlist);


        } catch (PDFlibException e) {

            System.err.print("PDFlib exception occurred:\n");

            System.err.print("[" + e.get_errnum() + "] " + e.get_apiname() +

                ": " + e.get_errmsg() + "\n");

        } catch (Exception e) {

            System.err.println(e.getMessage());

        } finally {

            if (p != null) {

                p.delete();

            }

        }

    }

}