Examples of UIDL

com.vaadin.client.UIDL
When a component is updated, it's client side widget's {@link ComponentConnector#updateFromUIDL(UIDL,ApplicationConnection) updateFromUIDL()} will be called with the updated ("changes") UIDL receivedfrom the server.
UIDL is hierarchical, and there are a few methods to retrieve the children, {@link #getChildCount()}, {@link #getChildIterator()}{@link #getChildString(int)}, {@link #getChildUIDL(int)}.

It can be helpful to keep in mind that UIDL was originally modeled in XML, so it's structure is very XML -like. For instance, the first to children in the underlying UIDL representation will contain the "tag" name and attributes, but will be skipped by the methods mentioned above.
com.vaadin.terminal.gwt.client.UIDL
When a component is updated, it's client side widget's {@link Paintable#updateFromUIDL(UIDL,ApplicationConnection) updateFromUIDL()} will be called with the updated ("changes") UIDL receivedfrom the server.
UIDL is hierarchical, and there are a few methods to retrieve the children, {@link #getChildCount()}, {@link #getChildIterator()}{@link #getChildString(int)}, {@link #getChildUIDL(int)}.

It can be helpful to keep in mind that UIDL was originally modeled in XML, so it's structure is very XML -like. For instance, the first to children in the underlying UIDL representation will contain the "tag" name and attributes, but will be skipped by the methods mentioned above.

Examples of com.vaadin.terminal.gwt.client.UIDL

    }


    private void updateActionMap(UIDL c) {
        final Iterator<?> it = c.getChildIterator();
        while (it.hasNext()) {
            final UIDL action = (UIDL) it.next();
            final String key = action.getStringAttribute("key");
            final String caption = action.getStringAttribute("caption");
            actionMap.put(key + "_c", caption);
            if (action.hasAttribute("icon")) {
                // TODO need some uri handling ??
                actionMap.put(key + "_i", client.translateVaadinUri(action
                        .getStringAttribute("icon")));
            }
        }


    }

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Examples of com.vaadin.terminal.gwt.client.UIDL

        public void updateCellsFromUIDL(UIDL uidl) {
            Iterator<?> it = uidl.getChildIterator();
            HashSet<String> updated = new HashSet<String>();
            updated.add("0");
            while (it.hasNext()) {
                final UIDL col = (UIDL) it.next();
                final String cid = col.getStringAttribute("cid");
                updated.add(cid);


                String caption = buildCaptionHtmlSnippet(col);
                HeaderCell c = getHeaderCell(cid);
                if (c == null) {
                    c = new HeaderCell(cid, caption);
                    availableCells.put(cid, c);
                    if (initializedAndAttached) {
                        // we will need a column width recalculation
                        initializedAndAttached = false;
                        initialContentReceived = false;
                        isNewBody = true;
                    }
                } else {
                    c.setText(caption);
                }


                if (col.hasAttribute("sortable")) {
                    c.setSortable(true);
                    if (cid.equals(sortColumn)) {
                        c.setSorted(true);
                    } else {
                        c.setSorted(false);
                    }
                } else {
                    c.setSortable(false);
                }


                if (col.hasAttribute("align")) {
                    c.setAlign(col.getStringAttribute("align").charAt(0));
                }
                if (col.hasAttribute("width")) {
                    final String width = col.getStringAttribute("width");
                    c.setWidth(Integer.parseInt(width), true);
                } else if (recalcWidths) {
                    c.setUndefinedWidth();
                }
                if (col.hasAttribute("er")) {
                    c.setExpandRatio(col.getFloatAttribute("er"));
                }
                if (col.hasAttribute("collapsed")) {
                    // ensure header is properly removed from parent (case when
                    // collapsing happens via servers side api)
                    if (c.isAttached()) {
                        c.removeFromParent();
                        headerChangedDuringUpdate = true;

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Examples of com.vaadin.terminal.gwt.client.UIDL

        public void updateCellsFromUIDL(UIDL uidl) {
            Iterator<?> columnIterator = uidl.getChildIterator();
            HashSet<String> updated = new HashSet<String>();
            updated.add("0");
            while (columnIterator.hasNext()) {
                final UIDL col = (UIDL) columnIterator.next();
                final String cid = col.getStringAttribute("cid");
                updated.add(cid);


                String caption = col.getStringAttribute("fcaption");
                FooterCell c = getFooterCell(cid);
                if (c == null) {
                    c = new FooterCell(cid, caption);
                    availableCells.put(cid, c);
                    if (initializedAndAttached) {
                        // we will need a column width recalculation
                        initializedAndAttached = false;
                        initialContentReceived = false;
                        isNewBody = true;
                    }
                } else {
                    c.setText(caption);
                }


                if (col.hasAttribute("align")) {
                    c.setAlign(col.getStringAttribute("align").charAt(0));
                }
                if (col.hasAttribute("width")) {
                    final String width = col.getStringAttribute("width");
                    c.setWidth(Integer.parseInt(width), true);
                } else if (recalcWidths) {
                    c.setUndefinedWidth();
                }
                if (col.hasAttribute("er")) {
                    c.setExpandRatio(col.getFloatAttribute("er"));
                }
                if (col.hasAttribute("collapsed")) {
                    // ensure header is properly removed from parent (case when
                    // collapsing happens via servers side api)
                    if (c.isAttached()) {
                        c.removeFromParent();
                        headerChangedDuringUpdate = true;

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Examples of com.vaadin.terminal.gwt.client.UIDL


        private void renderChildNodes(Iterator i) {
            childNodeContainer.clear();
            childNodeContainer.setVisible(true);
            while (i.hasNext()) {
                final UIDL childUidl = (UIDL) i.next();
                // actions are in bit weird place, don't mix them with children,
                // but current node's actions
                if ("actions".equals(childUidl.getTag())) {
                    updateActionMap(childUidl);
                    continue;
                }
                final TreeNode childTree = new TreeNode();
                if (ie6compatnode != null) {

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Examples of com.vaadin.terminal.gwt.client.UIDL

        LinkedList<Cell> pendingCells = new LinkedList<Cell>();


        LinkedList<Cell> relativeHeighted = new LinkedList<Cell>();


        for (final Iterator i = uidl.getChildIterator(); i.hasNext();) {
            final UIDL r = (UIDL) i.next();
            if ("gr".equals(r.getTag())) {
                for (final Iterator j = r.getChildIterator(); j.hasNext();) {
                    final UIDL c = (UIDL) j.next();
                    if ("gc".equals(c.getTag())) {
                        Cell cell = getCell(c);
                        if (cell.hasContent()) {
                            boolean rendered = cell.renderIfNoRelativeWidth();
                            cell.alignment = alignments[alignmentIndex++];
                            if (!rendered) {

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Examples of com.vaadin.terminal.gwt.client.UIDL

            // can't unselect last item in singleselect mode
            select.addItem("", null);
        }
        boolean selected = false;
        for (final Iterator i = uidl.getChildIterator(); i.hasNext();) {
            final UIDL optionUidl = (UIDL) i.next();
            select.addItem(optionUidl.getStringAttribute("caption"),
                    optionUidl.getStringAttribute("key"));
            if (optionUidl.hasAttribute("selected")) {
                select.setItemSelected(select.getItemCount() - 1, true);
                selected = true;
            }
        }
        if (!selected && !isNullSelectionAllowed()) {

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Examples of com.vaadin.terminal.gwt.client.UIDL

         * and tabs won't be too narrow in certain browsers
         */
        c.setWidth(c.getRequiredWidth() + "px");
        captions.put("" + index, c);


        UIDL tabContentUIDL = null;
        Paintable tabContent = null;
        if (tabUidl.getChildCount() > 0) {
            tabContentUIDL = tabUidl.getChildUIDL(0);
            tabContent = client.getPaintable(tabContentUIDL);
        }

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Examples of com.vaadin.terminal.gwt.client.UIDL

        this.client = client;
        super.updateFromUIDL(uidl, client);
        if (!uidl.hasAttribute("cached") && !uidl.hasAttribute("hidden")) {
            int childCount = uidl.getChildCount();
            if (childCount > 1) {
                UIDL childUIDL = uidl.getChildUIDL(1);
                if (dropHandler == null) {
                    dropHandler = new CustomDropHandler();
                }
                dropHandler.updateAcceptRules(childUIDL);
            } else {

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Examples of com.vaadin.terminal.gwt.client.UIDL

                && !isNullSelectionItemAvailable()) {
            // can't unselect last item in singleselect mode
            select.addItem("", null);
        }
        for (final Iterator i = uidl.getChildIterator(); i.hasNext();) {
            final UIDL optionUidl = (UIDL) i.next();
            select.addItem(optionUidl.getStringAttribute("caption"),
                    optionUidl.getStringAttribute("key"));
            if (optionUidl.hasAttribute("selected")) {
                select.setItemSelected(select.getItemCount() - 1, true);
            }
        }
        if (getRows() > 0) {
            select.setVisibleItemCount(getRows());

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Examples of com.vaadin.terminal.gwt.client.UIDL

        while (childIterator.hasNext()) {


            Object child = childIterator.next();
            if (child instanceof UIDL) {


                UIDL childUIDL = (UIDL) child;
                if (childUIDL.getTag().equals("embeddedparam")) {
                    String name = childUIDL.getStringAttribute("name");
                    String value = childUIDL.getStringAttribute("value");
                    parameters.put(name, value);
                }
            }


        }

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