@Override
public void paintContent(PaintTarget target) throws PaintException {
target.addAttribute(DragAndDropWrapperConstants.DRAG_START_MODE, dragStartMode.ordinal());
if (getDropHandler() != null) {
getDropHandler().getAcceptCriterion().paint(target);
}
if (receivers != null && receivers.size() > 0) {
for (Iterator<Entry<String, ProxyReceiver>> it = receivers.entrySet().iterator();
it.hasNext(); ) {
Entry<String, ProxyReceiver> entry = it.next();
String id = entry.getKey();
ProxyReceiver proxyReceiver = entry.getValue();
Html5File html5File = proxyReceiver.file;
if (html5File.getStreamVariable() != null) {
if (!sentIds.contains(id)) {
target.addVariable(this, "rec-" + id, new ProxyReceiver(id, html5File));
/*
* if a new batch is requested to be uploaded before the
* last one is done, any remaining ids will be replayed.
* We want to avoid a new ProxyReceiver to be made since
* it'll get a new URL, so we need to keep extra track
* on what has been sent.
*
* See #12330.
*/
sentIds.add(id);
// these are cleaned from receivers once the upload has
// started
}
} else {
// instructs the client side not to send the file
target.addVariable(this, "rec-" + id, (String) null);
// forget the file from subsequent paints
it.remove();
}
}
}
target.addAttribute(DragAndDropWrapperConstants.HTML5_DATA_FLAVORS, html5DataFlavors);
}
public void paintActions(Object actionTarget, PaintTarget paintTarget) throws PaintException {
actionMapper = null;
LinkedHashSet<Action> actions = getActionSet(actionTarget, viewer);
/*
* Must repaint whenever there are actions OR if all actions have been
* removed but still exist on client side
*/
if (!actions.isEmpty() || clientHasActions) {
actionMapper = new KeyMapper<Action>();
paintTarget.addVariable((VariableOwner) viewer, "action", "");
paintTarget.startTag("actions");
for (final Action a : actions) {
paintTarget.startTag("action");
final String akey = actionMapper.key(a);
paintTarget.addAttribute("key", akey);
if (a.getCaption() != null) {
paintTarget.addAttribute("caption", a.getCaption());
}
if (a.getIcon() != null) {
paintTarget.addAttribute("icon", a.getIcon());
}
if (a instanceof ShortcutAction) {
final ShortcutAction sa = (ShortcutAction) a;
paintTarget.addAttribute("kc", sa.getKeyCode());
final int[] modifiers = sa.getModifiers();
if (modifiers != null) {
final String[] smodifiers = new String[modifiers.length];
for (int i = 0; i < modifiers.length; i++) {
smodifiers[i] = String.valueOf(modifiers[i]);
}
paintTarget.addAttribute("mk", smodifiers);
}
}
paintTarget.endTag("action");
}
paintTarget.endTag("actions");
}
/*
* Update flag for next repaint so we know if we need to paint empty
* actions or not (must send actions is client had actions before and
* all actions were removed).
*/
clientHasActions = !actions.isEmpty();
}
/**
* Paints any needed component-specific things to the given UIDL stream.
*
* @see com.vaadin.ui.AbstractComponent#paintContent(PaintTarget)
*/
@Override
public void paintContent(PaintTarget target) throws PaintException {
initialPaint = false;
if (partialUpdate) {
target.addAttribute("partialUpdate", true);
target.addAttribute("rootKey", itemIdMapper.key(expandedItemId));
} else {
getCaptionChangeListener().clear();
// The tab ordering number
if (getTabIndex() > 0) {
target.addAttribute("tabindex", getTabIndex());
}
// Paint tree attributes
if (isSelectable()) {
target.addAttribute("selectmode", (isMultiSelect() ? "multi" : "single"));
if (isMultiSelect()) {
target.addAttribute("multiselectmode", multiSelectMode.toString());
}
} else {
target.addAttribute("selectmode", "none");
}
if (isNewItemsAllowed()) {
target.addAttribute("allownewitem", true);
}
if (isNullSelectionAllowed()) {
target.addAttribute("nullselect", true);
}
if (dragMode != TreeDragMode.NONE) {
target.addAttribute("dragMode", dragMode.ordinal());
}
}
// Initialize variables
final Set<Action> actionSet = new LinkedHashSet<Action>();
// rendered selectedKeys
LinkedList<String> selectedKeys = new LinkedList<String>();
final LinkedList<String> expandedKeys = new LinkedList<String>();
// Iterates through hierarchical tree using a stack of iterators
final Stack<Iterator<?>> iteratorStack = new Stack<Iterator<?>>();
Collection<?> ids;
if (partialUpdate) {
ids = getChildren(expandedItemId);
} else {
ids = rootItemIds();
}
if (ids != null) {
iteratorStack.push(ids.iterator());
}
/*
* Body actions - Actions which has the target null and can be invoked
* by right clicking on the Tree body
*/
if (actionHandlers != null) {
final ArrayList<String> keys = new ArrayList<String>();
for (Handler ah : actionHandlers) {
// Getting action for the null item, which in this case
// means the body item
final Action[] aa = ah.getActions(null, this);
if (aa != null) {
for (int ai = 0; ai < aa.length; ai++) {
final String akey = actionMapper.key(aa[ai]);
actionSet.add(aa[ai]);
keys.add(akey);
}
}
}
target.addAttribute("alb", keys.toArray());
}
while (!iteratorStack.isEmpty()) {
// Gets the iterator for current tree level
final Iterator<?> i = iteratorStack.peek();
// If the level is finished, back to previous tree level
if (!i.hasNext()) {
// Removes used iterator from the stack
iteratorStack.pop();
// Closes node
if (!iteratorStack.isEmpty()) {
target.endTag("node");
}
}
// Adds the item on current level
else {
final Object itemId = i.next();
// Starts the item / node
final boolean isNode = areChildrenAllowed(itemId);
if (isNode) {
target.startTag("node");
} else {
target.startTag("leaf");
}
if (itemStyleGenerator != null) {
String stylename = itemStyleGenerator.getStyle(this, itemId);
if (stylename != null) {
target.addAttribute(TreeConstants.ATTRIBUTE_NODE_STYLE, stylename);
}
}
if (itemDescriptionGenerator != null) {
String description = itemDescriptionGenerator.generateDescription(this, itemId, null);
if (description != null && !description.equals("")) {
target.addAttribute("descr", description);
}
}
// Adds the attributes
target.addAttribute(TreeConstants.ATTRIBUTE_NODE_CAPTION, getItemCaption(itemId));
final Resource icon = getItemIcon(itemId);
if (icon != null) {
target.addAttribute(TreeConstants.ATTRIBUTE_NODE_ICON, getItemIcon(itemId));
target.addAttribute(
TreeConstants.ATTRIBUTE_NODE_ICON_ALT, getItemIconAlternateText(itemId));
}
final String key = itemIdMapper.key(itemId);
target.addAttribute("key", key);
if (isSelected(itemId)) {
target.addAttribute("selected", true);
selectedKeys.add(key);
}
if (areChildrenAllowed(itemId) && isExpanded(itemId)) {
target.addAttribute("expanded", true);
expandedKeys.add(key);
}
// Add caption change listener
getCaptionChangeListener().addNotifierForItem(itemId);
// Actions
if (actionHandlers != null) {
final ArrayList<String> keys = new ArrayList<String>();
final Iterator<Action.Handler> ahi = actionHandlers.iterator();
while (ahi.hasNext()) {
final Action[] aa = ahi.next().getActions(itemId, this);
if (aa != null) {
for (int ai = 0; ai < aa.length; ai++) {
final String akey = actionMapper.key(aa[ai]);
actionSet.add(aa[ai]);
keys.add(akey);
}
}
}
target.addAttribute("al", keys.toArray());
}
// Adds the children if expanded, or close the tag
if (isExpanded(itemId) && hasChildren(itemId) && areChildrenAllowed(itemId)) {
iteratorStack.push(getChildren(itemId).iterator());
} else {
if (isNode) {
target.endTag("node");
} else {
target.endTag("leaf");
}
}
}
}
// Actions
if (!actionSet.isEmpty()) {
target.addVariable(this, "action", "");
target.startTag("actions");
final Iterator<Action> i = actionSet.iterator();
while (i.hasNext()) {
final Action a = i.next();
target.startTag("action");
if (a.getCaption() != null) {
target.addAttribute(TreeConstants.ATTRIBUTE_ACTION_CAPTION, a.getCaption());
}
if (a.getIcon() != null) {
target.addAttribute(TreeConstants.ATTRIBUTE_ACTION_ICON, a.getIcon());
}
target.addAttribute("key", actionMapper.key(a));
target.endTag("action");
}
target.endTag("actions");
}
if (partialUpdate) {
partialUpdate = false;
} else {
// Selected
target.addVariable(this, "selected", selectedKeys.toArray(new String[selectedKeys.size()]));
// Expand and collapse
target.addVariable(this, "expand", new String[] {});
target.addVariable(this, "collapse", new String[] {});
// New items
target.addVariable(this, "newitem", new String[] {});
if (dropHandler != null) {
dropHandler.getAcceptCriterion().paint(target);
}
}
}