CODEWITHSUNDEEP
gwtprintingjasper-reports
Arya
Arya

Reputation: 3029

Print generated pdf with GWT

I can open a generated jasper pdf report, in new tab with Window.open():

Window.open("report.pdf?traceCode=" + traceCode, "_BLANK", "");

If i want print the pdf file by clicking a button, what should i do? (Window.print() will print the entire page)

Upvotes: 1

Views: 3088

Answers (2)

PVR
PVR

Reputation: 2524

You can create your own class and on click of Print button in your application, by using native print method you can call Window.Print().

GWT UIObject can be used for this purpose and the method and it will be converted into string.

public class NTPrint {
    /**
     * If true, use a Timer instead to print the internal frame
     */
    public static boolean USE_TIMER = true;

    /**
     * Time in seconds to wait before printing the internal frame when using Timer
     */
    public static int TIMER_DELAY = 1;

    public static native void it() /*-{ 
        $wnd.print(); 
    }-*/; 

    public static void it(String html) {
        try{
            buildFrame(html);
            if (USE_TIMER) {
                Timer timer = new Timer() {
                    public void run() {
                        printFrame();
                    }
                };
                timer.schedule(TIMER_DELAY * 1000);
            } else {
                printFrame();
            }
        }
        catch (Throwable exc) {
            CommonUtil.printStackTrace(exc);
            Window.alert(exc.getMessage());
        }
    }

    /**
     * This method will be called when you pass Widget without style.
     * @param uiObjects
     */
    public static void it( UIObject...uiObjects) { 
        StringBuffer objString= new StringBuffer();
        for(UIObject obj: uiObjects)
                objString.append(obj.toString());
            it("", objString.toString()); 
    }

}

OnClick of Print button,

  /**
         * prints all forms
         * @param documentInfo
         */
        public static void printForms(List<FormTransaction> formTransactions, String documentInfo, List<CellTransaction> cellTransactionList, boolean isComment, Document document) {
                String style = "<link rel='styleSheet' type='text/css' href='v4workflow/css/style.css'>"
                                + "<link rel='styleSheet' type='text/css' href='v4workflow/css/gwtcontrols.css'>"
                                + "<style type='text/css' media='print'>"
                                + "@media print {"
                                + ".footerText{font-size:13px; font-weight:normal;margin-top:0px;}"
                                + ".break {page-break-after:always}"
                                + "}" + "</style>";
                List<UIObject> uiObjects = new ArrayList<UIObject>();
                NTPrintLayout printLayout = new NTPrintLayout();
                printLayout.setSelectedDocument(null);
                uiObjects.add(createHeader());
                NTPrint.it(style,uiObjects);
        }

 public static FlexTable createHeader(){
                FlexTable flexTable = new FlexTable();
                flexTable.setWidth("100%");
                return flexTable;
        }

Upvotes: 4

Suresh Atta
Suresh Atta

Reputation: 121998

You won't be able to call the print() method (or any other method for that matter) of the window object if that window contains non-HTML page.

Let the user download the file.

Refer this also

Upvotes: 0

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