123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238 |
- /*
- @VaadinApache2LicenseForJavaFiles@
- */
- package com.vaadin.terminal.gwt.client.ui;
-
- import java.util.Iterator;
-
- import com.google.gwt.core.client.GWT;
- import com.google.gwt.user.client.ui.Widget;
- import com.vaadin.terminal.gwt.client.ApplicationConnection;
- import com.vaadin.terminal.gwt.client.TooltipInfo;
- import com.vaadin.terminal.gwt.client.UIDL;
- import com.vaadin.terminal.gwt.client.ui.VTree.TreeNode;
-
- public class TreeConnector extends AbstractComponentConnector {
-
- public static final String ATTRIBUTE_NODE_STYLE = "style";
- public static final String ATTRIBUTE_NODE_CAPTION = "caption";
- public static final String ATTRIBUTE_NODE_ICON = "icon";
-
- public static final String ATTRIBUTE_ACTION_CAPTION = "caption";
- public static final String ATTRIBUTE_ACTION_ICON = ATTRIBUTE_NODE_ICON;
-
- @Override
- public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
- // Ensure correct implementation and let container manage caption
- super.updateFromUIDL(uidl, client);
- if (!isRealUpdate(uidl)) {
- return;
- }
-
- getWidget().rendering = true;
-
- getWidget().client = client;
-
- if (uidl.hasAttribute("partialUpdate")) {
- handleUpdate(uidl);
- getWidget().rendering = false;
- return;
- }
-
- getWidget().paintableId = uidl.getId();
-
- getWidget().immediate = getState().isImmediate();
-
- getWidget().disabled = !getState().isEnabled();
- getWidget().readonly = getState().isReadOnly();
-
- getWidget().dragMode = uidl.hasAttribute("dragMode") ? uidl
- .getIntAttribute("dragMode") : 0;
-
- getWidget().isNullSelectionAllowed = uidl
- .getBooleanAttribute("nullselect");
-
- if (uidl.hasAttribute("alb")) {
- getWidget().bodyActionKeys = uidl.getStringArrayAttribute("alb");
- }
-
- getWidget().body.clear();
- // clear out any references to nodes that no longer are attached
- getWidget().clearNodeToKeyMap();
- TreeNode childTree = null;
- UIDL childUidl = null;
- for (final Iterator<?> i = uidl.getChildIterator(); i.hasNext();) {
- childUidl = (UIDL) i.next();
- if ("actions".equals(childUidl.getTag())) {
- updateActionMap(childUidl);
- continue;
- } else if ("-ac".equals(childUidl.getTag())) {
- getWidget().updateDropHandler(childUidl);
- continue;
- }
- childTree = getWidget().new TreeNode();
- updateNodeFromUIDL(childTree, childUidl);
- getWidget().body.add(childTree);
- childTree.addStyleDependentName("root");
- childTree.childNodeContainer.addStyleDependentName("root");
- }
- if (childTree != null && childUidl != null) {
- boolean leaf = !childUidl.getTag().equals("node");
- childTree.addStyleDependentName(leaf ? "leaf-last" : "last");
- childTree.childNodeContainer.addStyleDependentName("last");
- }
- final String selectMode = uidl.getStringAttribute("selectmode");
- getWidget().selectable = !"none".equals(selectMode);
- getWidget().isMultiselect = "multi".equals(selectMode);
-
- if (getWidget().isMultiselect) {
- getWidget().multiSelectMode = uidl
- .getIntAttribute("multiselectmode");
- }
-
- getWidget().selectedIds = uidl.getStringArrayVariableAsSet("selected");
-
- // Update lastSelection and focusedNode to point to *actual* nodes again
- // after the old ones have been cleared from the body. This fixes focus
- // and keyboard navigation issues as described in #7057 and other
- // tickets.
- if (getWidget().lastSelection != null) {
- getWidget().lastSelection = getWidget().getNodeByKey(
- getWidget().lastSelection.key);
- }
- if (getWidget().focusedNode != null) {
- getWidget().setFocusedNode(
- getWidget().getNodeByKey(getWidget().focusedNode.key));
- }
-
- if (getWidget().lastSelection == null
- && getWidget().focusedNode == null
- && !getWidget().selectedIds.isEmpty()) {
- getWidget().setFocusedNode(
- getWidget().getNodeByKey(
- getWidget().selectedIds.iterator().next()));
- getWidget().focusedNode.setFocused(false);
- }
-
- getWidget().rendering = false;
-
- }
-
- @Override
- protected Widget createWidget() {
- return GWT.create(VTree.class);
- }
-
- @Override
- public VTree getWidget() {
- return (VTree) super.getWidget();
- }
-
- private void handleUpdate(UIDL uidl) {
- final TreeNode rootNode = getWidget().getNodeByKey(
- uidl.getStringAttribute("rootKey"));
- if (rootNode != null) {
- if (!rootNode.getState()) {
- // expanding node happened server side
- rootNode.setState(true, false);
- }
- renderChildNodes(rootNode, (Iterator) uidl.getChildIterator());
- }
- }
-
- /**
- * Registers action for the root and also for individual nodes
- *
- * @param uidl
- */
- private void updateActionMap(UIDL uidl) {
- final Iterator<?> it = uidl.getChildIterator();
- while (it.hasNext()) {
- final UIDL action = (UIDL) it.next();
- final String key = action.getStringAttribute("key");
- final String caption = action
- .getStringAttribute(ATTRIBUTE_ACTION_CAPTION);
- String iconUrl = null;
- if (action.hasAttribute(ATTRIBUTE_ACTION_ICON)) {
- iconUrl = getConnection().translateVaadinUri(
- action.getStringAttribute(ATTRIBUTE_ACTION_ICON));
- }
- getWidget().registerAction(key, caption, iconUrl);
- }
-
- }
-
- public void updateNodeFromUIDL(TreeNode treeNode, UIDL uidl) {
- String nodeKey = uidl.getStringAttribute("key");
- treeNode.setText(uidl.getStringAttribute(ATTRIBUTE_NODE_CAPTION));
- treeNode.key = nodeKey;
-
- getWidget().registerNode(treeNode);
-
- if (uidl.hasAttribute("al")) {
- treeNode.actionKeys = uidl.getStringArrayAttribute("al");
- }
-
- if (uidl.getTag().equals("node")) {
- if (uidl.getChildCount() == 0) {
- treeNode.childNodeContainer.setVisible(false);
- } else {
- renderChildNodes(treeNode, (Iterator) uidl.getChildIterator());
- treeNode.childrenLoaded = true;
- }
- } else {
- treeNode.addStyleName(TreeNode.CLASSNAME + "-leaf");
- }
- if (uidl.hasAttribute(ATTRIBUTE_NODE_STYLE)) {
- treeNode.setNodeStyleName(uidl
- .getStringAttribute(ATTRIBUTE_NODE_STYLE));
- }
-
- String description = uidl.getStringAttribute("descr");
- if (description != null && getConnection() != null) {
- // Set tooltip
- TooltipInfo info = new TooltipInfo(description);
- getConnection().registerTooltip(this, nodeKey, info);
- } else {
- // Remove possible previous tooltip
- getConnection().registerTooltip(this, nodeKey, null);
- }
-
- if (uidl.getBooleanAttribute("expanded") && !treeNode.getState()) {
- treeNode.setState(true, false);
- }
-
- if (uidl.getBooleanAttribute("selected")) {
- treeNode.setSelected(true);
- // ensure that identifier is in selectedIds array (this may be a
- // partial update)
- getWidget().selectedIds.add(nodeKey);
- }
-
- treeNode.setIcon(uidl.getStringAttribute(ATTRIBUTE_NODE_ICON));
- }
-
- void renderChildNodes(TreeNode containerNode, Iterator<UIDL> i) {
- containerNode.childNodeContainer.clear();
- containerNode.childNodeContainer.setVisible(true);
- while (i.hasNext()) {
- final UIDL childUidl = 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 = getWidget().new TreeNode();
- updateNodeFromUIDL(childTree, childUidl);
- containerNode.childNodeContainer.add(childTree);
- if (!i.hasNext()) {
- childTree
- .addStyleDependentName(childTree.isLeaf() ? "leaf-last"
- : "last");
- childTree.childNodeContainer.addStyleDependentName("last");
- }
- }
- containerNode.childrenLoaded = true;
- }
- }
|