BASKET
Search
PDFlib

interactive/form_triggers_js_actions

Download Java Code       Switch to PHP Code     Show Output PDF

/* $Id: form_triggers_js_actions.java,v 1.10 2013/01/15 10:12:00 stm Exp $

 * Form triggers for JavaScript actions:

 * Demonstrate all possibilities to trigger a JavaScript action from a form

 * field.

 *

 * Trigger a JavaScript action by performing various actions on a

 * form text field. Use create_field() with the "action" option to trigger

 * actions by one of the following events: activate, keystroke, format,

 * validate, calculate, enter, exit, down, up, focus, or blur.

 *

 * 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 form_triggers_js_actions

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "form_triggers_js_actions.pdf";

    String title = "Form Triggers for Javascript Actions";


    pdflib p = null;

    String optlist;

    int font, action;

    int llx = 100, lly = 780, urx = 400, ury = 800;

    int tx = 50, ty_off = 7;


    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: 1.10 $");


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

        if (font == -1)

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

       

        /* Start an A4 page */

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

       

        p.setfont(font, 12);

       

       

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

         * Trigger a JavaScript action when the field is activated

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'activate' for the " +

            "text field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {activate={" + action + "} " + "} " +

            "currentvalue={Click in this field} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly, urx, ury, "activate_field", "textfield",

            optlist);

        p.fit_textline("activate", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");

       

       

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

         * Trigger a JavaScript action when the user types into a text field

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'keystroke' for the " +

            "text field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {keystroke={" + action + "} " + "} " +

            "currentvalue={Press a key in this field} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "keystroke_field",

            "textfield", optlist);

        p.fit_textline("keystroke", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");

       

       

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

         * Trigger a JavaScript action before the field is formatted to display

         * its current value. This allows the field's value to be modified

         * before formatting.

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'format' for the text " +

            "field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {format={" + action + "} " + "} " +

            "currentvalue={Enter text and press Return} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "format_field", "textfield",

            optlist);

        p.fit_textline("format", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");

       

       

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

         * Trigger a JavaScript action when the field's value is changed. This

         * allows the new value to be checked for validity.

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'validate' for the " +

            "text field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {validate={" + action + "} " + "} " +

            "currentvalue={Enter text and press Return} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "validate_field",

            "textfield", optlist);

        p.fit_textline("validate", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");

       

       

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

         * Trigger a JavaScript action when the value of another field changes

         * in order to recalculate the value of this field

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'calculate' for the " +

            "text field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {calculate={" + action + "} " + "} " +

            "currentvalue={Enter text and press Return} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "calculate_field",

            "textfield", optlist);

        p.fit_textline("calculate", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");


                   

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

         * Trigger a JavaScript action when the mouse button is pressed inside

         * the field's area

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'down' for the text " +

            "field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {down={" + action + "} " + "} " +

            "currentvalue={Press the mouse button in this field} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "down_field", "textfield",

            optlist);

        p.fit_textline("down", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");


           

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

         * Trigger a JavaScript action when the mouse button is released inside

         * the field's area

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'up' for the text " +

            "field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {up={" + action + "} " + "} " +

            "currentvalue={Press and then release the mouse button in this " +

            "field} backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "up_field", "textfield",

            optlist);

        p.fit_textline("up", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");


       

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

         * Trigger a JavaScript action when the text field receives the input

         * focus

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'focus' for the " +

            "text field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {focus={" + action + "} " + "} " +

            "currentvalue={Click this field} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "focus_field", "textfield",

            optlist);

        p.fit_textline("focus", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");


       

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

         * Trigger a JavaScript action when the text field loses the input focus

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'blur' for the " +

                "text field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {blur={" + action + "} " + "} " +

            "currentvalue={Click this and then another field} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

                   

        p.create_field(llx, lly-=50, urx, ury-=50, "blur_field", "textfield",

            optlist);

        p.fit_textline("blur", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");

       

       

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

         * Trigger a JavaScript action when the mouse enters the field's area.

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

         */

       

        /* Create the JavaScript action */

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

            "app.alert(\"Action triggered by the event 'enter' for the " +

            "text field\");}");

       

        /* Create a text field which triggers the action */

        optlist = "action {enter={" + action + "} " + "} " +

            "currentvalue={Move the mouse into this field} " +

            "backgroundcolor={rgb 0.95 0.95 0.7} font=" + font;

       

        p.create_field(llx, lly-=50, urx, ury-=50, "enter_field", "textfield",

            optlist);

        p.fit_textline("enter", tx, lly + ty_off,

            "fillcolor={rgb 0.47 0.47 0.34} fontsize=10");

       

       

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

         * To trigger a JavaScript action when the mouse exits the field's area,

         * use "optlist = "action {exit={" + action ..."

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

         */

       

        p.end_page_ext("");

 

        p.end_document("");


        } 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();

            }

        }

    }

}