Examples of org.apache.click.control.ActionLink

org.apache.click.control.ActionLink
the product clicked on by the user Integer productId = addLink.getValueInteger(); Product product = getProductService().getProduct(productId); // Add product to basket List basket = (List) getContext().getSessionAttribute("basket"); basket.add(product); getContext().setSessionAttribute("basket", basket); return true; } public boolean onDetailsClick() { // Get the product clicked on by the user Integer productId = detailsLink.getValueInteger(); Product product = getProductService().getProduct(productId); // Store the product in the request and display in the details page getContext().setRequestAttribute("product", product); setForward(ProductDetailsPage.class); return false; } public void onRender() { // Display the list of available products productList = getProductService().getProducts(); } } See also the W3C HTML reference: A Links @see AbstractLink @see Submit

     *
     * @return true if further processing should continue or false otherwise
     */
    @Override
    public boolean onProcess() {
        ActionLink localControlLink = getControlLink();


        boolean continueProcessing = super.onProcess();


        if (localControlLink.isClicked()) {
            getForm().getField(PAGE).setValue(Integer.toString(getPageNumber()));


            getForm().getField(COLUMN).setValue(getSortedColumn());


            getForm().getField(ASCENDING).setValue(Boolean.toString(isSortedAscending()));

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            //Loop over all links and check if any was clicked
            if (linksArray != null) {
                for (int i = 0; i < linksArray.length; i++) {
                    AbstractLink link = linksArray[i];
                    if (link instanceof ActionLink) {
                        ActionLink actionLink = (ActionLink) link;


                        String name = actionLink.getName();
                        if (name != null) {
                            clicked = name.equals(context.getRequestParameter(ActionLink.ACTION_LINK));
                        } else {
                            throw new IllegalStateException("ActionLink name not defined");
                        }

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        if (table == null) {
            throw new IllegalStateException("No parent table defined."
                + " Ensure a parent Table is set using #setTable(Table).");
        }


        final ActionLink controlLink = table.getControlLink();


        if (table.getSortedColumn() != null) {
            controlLink.setParameter(Table.SORT, null);
            controlLink.setParameter(Table.COLUMN, table.getSortedColumn());
            controlLink.setParameter(Table.ASCENDING, String.valueOf(table.isSortedAscending()));
        } else {
            controlLink.setParameter(Table.SORT, null);
            controlLink.setParameter(Table.COLUMN, null);
            controlLink.setParameter(Table.ASCENDING, null);
        }


        String firstLabel = "";
        String previousLabel = "";


        if (table.getPageNumber() > 0) {
            controlLink.setDisabled(false);
            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-first-image"));
            controlLink.setParameter(Table.PAGE, String.valueOf(0));
            controlLink.setTitle(table.getMessage("table-first-title"));
            firstLabel = controlLink.toString();


            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-previous-image"));
            controlLink.setParameter(Table.PAGE, String.valueOf(table.getPageNumber() - 1));
            controlLink.setTitle(table.getMessage("table-previous-title"));
            previousLabel = controlLink.toString();


        } else {
            controlLink.setDisabled(true);


            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-first-disabled-image"));
            controlLink.setParameter(Table.PAGE, null);
            controlLink.setTitle(null);
            firstLabel = controlLink.toString();


            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-previous-disabled-image"));
            controlLink.setParameter(Table.PAGE, null);
            controlLink.setTitle(null);
            previousLabel = controlLink.toString();
        }


        HtmlStringBuffer pagesBuffer =
            new HtmlStringBuffer(table.getNumberPages() * 70);


        // Create sliding window of paging links
        int lowerBound = Math.max(0, table.getPageNumber() - 5);
        int upperBound = Math.min(lowerBound + 10, table.getNumberPages());
        if (upperBound - lowerBound < 10) {
            lowerBound = Math.max(upperBound - 10, 0);
        }


        controlLink.setImageSrc(null);
        controlLink.setDisabled(false);
        String gotoTitle = table.getMessage("table-goto-title");


        for (int i = lowerBound; i < upperBound; i++) {
            String pageNumber = String.valueOf(i + 1);
            if (i == table.getPageNumber()) {
                pagesBuffer.append("<strong>" + pageNumber + "</strong>");


            } else {
                controlLink.setLabel(pageNumber);
                controlLink.setParameter(Table.PAGE, String.valueOf(i));
                controlLink.setTitle(gotoTitle + " " + pageNumber);
                pagesBuffer.append(controlLink.toString());
            }


            if (i < upperBound - 1) {
                pagesBuffer.append("&#160; ");
            }
        }


        String nextLabel = "";
        String lastLabel = "";


        if (table.getPageNumber() < table.getNumberPages() - 1) {
            controlLink.setDisabled(false);
            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-next-image"));
            controlLink.setParameter(Table.PAGE, String.valueOf(table.getPageNumber() + 1));
            controlLink.setTitle(table.getMessage("table-next-title"));
            nextLabel = controlLink.toString();


            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-last-image"));
            controlLink.setParameter(Table.PAGE, String.valueOf(table.getNumberPages() - 1));
            controlLink.setTitle(table.getMessage("table-last-title"));
            lastLabel = controlLink.toString();


        } else {
            controlLink.setDisabled(true);


            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-next-disabled-image"));
            controlLink.setParameter(Table.PAGE, null);
            controlLink.setTitle(null);
            nextLabel = controlLink.toString();


            controlLink.setImageSrc(paginatorMessages.getMessage("table-inline-last-disabled-image"));
            controlLink.setParameter(Table.PAGE, null);
            controlLink.setTitle(null);
            lastLabel = controlLink.toString();
        }


        controlLink.setDisabled(false);
        controlLink.setImageSrc(null);
        controlLink.setTitle(null);


        final String pageLinks = pagesBuffer.toString();


        final Object[] args =
            { firstLabel, previousLabel, pageLinks, nextLabel, lastLabel };

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            // Handle ActionLink (perhaps other link controls too?) differently
            // as it doesn't render the "name" attribute. The "name" attribute
            // is used by links for bookmarking purposes. Instead set the class
            // attribute to the link's name and use that as the selector.
            if (control instanceof ActionLink) {
                ActionLink link = (ActionLink) control;
                if (!link.hasAttribute("class")) {
                    link.setAttribute("class", '-' + name);
                }
                buffer.append(tag).append("[class*=");
                buffer.append(link.getAttribute("class")).append("]");


            } else {
                buffer.append(tag).append("[name=");
                buffer.append(name).append("]");
            }

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                }
            }
        } else {
            // Explicitly bind the link to the request and check if the
            // link was clicked
            ActionLink link = getTabLink();
            link.bindRequestValue();
            if (link.isClicked()) {


                // Check which panel user selected and set that Panel as active
                for (int i = 0; i < getPanels().size(); i++) {
                    Panel panel = getPanels().get(i);


                    // Deactivate panel
                    panel.setActive(false);


                    if (link.getValue().equals(panel.getName())
                        && !panel.isDisabled()) {


                        setActivePanel(panel);
                    }
                }

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