Examples of com.vaadin.terminal.Paintable$RepaintRequestListener

com.vaadin.terminal.Paintable
Listens repaint requests. The repaintRequested method is called when the paintable needs to be repainted. This is typically done when the paint method would return dissimilar UIDL from the previous call of the method.

        for (Iterator<?> it = value.keySet().iterator(); it.hasNext();) {
            Object key = it.next();
            Object mapValue = value.get(key);
            sb.append("\"");
            if (key instanceof Paintable) {
                Paintable paintable = (Paintable) key;
                sb.append(getPaintIdentifier(paintable));
            } else {
                sb.append(escapeJSON(key.toString()));
            }
            sb.append("\":");

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                    }
                });


                for (final Iterator<Paintable> i = paintables.iterator(); i
                        .hasNext();) {
                    final Paintable p = i.next();


                    // TODO CLEAN
                    if (p instanceof Window) {
                        final Window w = (Window) p;
                        if (w.getTerminal() == null) {
                            w.setTerminal(application.getMainWindow()
                                    .getTerminal());
                        }
                    }
                    /*
                     * This does not seem to happen in tk5, but remember this
                     * case: else if (p instanceof Component) { if (((Component)
                     * p).getParent() == null || ((Component)
                     * p).getApplication() == null) { // Component requested
                     * repaint, but is no // longer attached: skip
                     * paintablePainted(p); continue; } }
                     */


                    // TODO we may still get changes that have been
                    // rendered already (changes with only cached flag)
                    if (paintTarget.needsToBePainted(p)) {
                        paintTarget.startTag("change");
                        paintTarget.addAttribute("format", "uidl");
                        final String pid = getPaintableId(p);
                        paintTarget.addAttribute("pid", pid);


                        p.paint(paintTarget);


                        paintTarget.endTag("change");
                    }
                    paintablePainted(p);

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            if (id == null) {
                id = "PID" + Integer.toString(idSequence++);
            } else {
                id = "PID_S" + id;
            }
            Paintable old = idPaintableMap.put(id, paintable);
            if (old != null && old != paintable) {
                /*
                 * Two paintables have the same id. We still make sure the old
                 * one is a component which is still attached to the
                 * application. This is just a precaution and should not be
                 * absolutely necessary.
                 */


                if (old instanceof Component
                        && ((Component) old).getApplication() != null) {
                    throw new IllegalStateException("Two paintables ("
                            + paintable.getClass().getSimpleName() + ","
                            + old.getClass().getSimpleName()
                            + ") have been assigned the same id: "
                            + paintable.getDebugId());
                }
            }
            paintableIdMap.put(paintable, id);

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        // list. The result is that each component should be painted exactly
        // once and any unmodified components will be painted as "cached=true".


        for (final Iterator<Paintable> i = dirtyPaintables.iterator(); i
                .hasNext();) {
            final Paintable p = i.next();
            if (p instanceof Component) {
                final Component component = (Component) p;
                if (component.getApplication() == null) {
                    // component is detached after requestRepaint is called
                    resultset.remove(p);

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    /**
     * @see com.vaadin.terminal.Paintable.RepaintRequestListener#repaintRequested(com.vaadin.terminal.Paintable.RepaintRequestEvent)
     */
    public void repaintRequested(RepaintRequestEvent event) {
        final Paintable p = event.getPaintable();
        if (!dirtyPaintables.contains(p)) {
            dirtyPaintables.add(p);
        }
    }

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        for (Iterator<?> it = value.keySet().iterator(); it.hasNext();) {
            Object key = it.next();
            Object mapValue = value.get(key);
            sb.append("\"");
            if (key instanceof Paintable) {
                Paintable paintable = (Paintable) key;
                sb.append(getPaintIdentifier(paintable));
            } else {
                sb.append(escapeJSON(key.toString()));
            }
            sb.append("\":");

View Full Code Here

                }
            });


            for (final Iterator<Paintable> i = paintables.iterator(); i
                    .hasNext();) {
                final Paintable p = i.next();


                // TODO CLEAN
                if (p instanceof Window) {
                    final Window w = (Window) p;
                    if (w.getTerminal() == null) {
                        w.setTerminal(application.getMainWindow().getTerminal());
                    }
                }
                /*
                 * This does not seem to happen in tk5, but remember this case:
                 * else if (p instanceof Component) { if (((Component)
                 * p).getParent() == null || ((Component) p).getApplication() ==
                 * null) { // Component requested repaint, but is no // longer
                 * attached: skip paintablePainted(p); continue; } }
                 */


                // TODO we may still get changes that have been
                // rendered already (changes with only cached flag)
                if (paintTarget.needsToBePainted(p)) {
                    paintTarget.startTag("change");
                    paintTarget.addAttribute("format", "uidl");
                    final String pid = getPaintableId(p);
                    paintTarget.addAttribute("pid", pid);


                    p.paint(paintTarget);


                    paintTarget.endTag("change");
                }
                paintablePainted(p);

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                for (int seq = 0;; ++seq) {
                    // In case of a duplicate debug id, uniquify the PID by
                    // inserting a sequential integer. Try successive numbers
                    // until finding a PID that is either not used at all or
                    // used by a detached component. See #5109.
                    Paintable old = idPaintableMap.get(id);
                    if (old == null
                            || (old instanceof Component && ((Component) old)
                                    .getApplication() == null)) {
                        break;
                    }

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        // list. The result is that each component should be painted exactly
        // once and any unmodified components will be painted as "cached=true".


        for (final Iterator<Paintable> i = dirtyPaintables.iterator(); i
                .hasNext();) {
            final Paintable p = i.next();
            if (p instanceof Component) {
                final Component component = (Component) p;
                if (component.getApplication() == null) {
                    // component is detached after requestRepaint is called
                    resultset.remove(p);

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    /**
     * @see com.vaadin.terminal.Paintable.RepaintRequestListener#repaintRequested(com.vaadin.terminal.Paintable.RepaintRequestEvent)
     */
    public void repaintRequested(RepaintRequestEvent event) {
        final Paintable p = event.getPaintable();
        if (!dirtyPaintables.contains(p)) {
            dirtyPaintables.add(p);
        }
    }

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