Example usage for com.google.gwt.user.cellview.client TreeNode getChildValue

List of usage examples for com.google.gwt.user.cellview.client TreeNode getChildValue

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Introduction

In this page you can find the example usage for com.google.gwt.user.cellview.client TreeNode getChildValue.

Prototype

Object getChildValue(int index);

Source Link

Document

Get the value associated with a child node.

Usage

From source file:com.dingziran.effective.client.Showcase.java

License:Apache License

/**
   * This is the entry point method.//ww  w . j av  a2s .  c  o m
   */
public void onModuleLoad() {
    factory = GWT.create(Factory.class);
    eventBus = new SimpleEventBus();
    factory.initialize(eventBus);
    // Inject global styles.
    injectThemeStyleSheet();
    images.css().ensureInjected();

    // Initialize the constants.
    ShowcaseConstants constants = GWT.create(ShowcaseConstants.class);

    // Create the application shell.
    final SingleSelectionModel<ContentWidget> selectionModel = new SingleSelectionModel<ContentWidget>();
    final MainMenuTreeViewModel treeModel = new MainMenuTreeViewModel(constants, selectionModel);
    Set<ContentWidget> contentWidgets = treeModel.getAllContentWidgets();
    shell = new ShowcaseShell(treeModel);
    RootLayoutPanel.get().add(shell);

    final CellTree mainMenu = shell.getMainMenu();
    /*
        // Prefetch examples when opening the Category tree nodes.
        final List<Category> prefetched = new ArrayList<Category>();
        mainMenu.addOpenHandler(new OpenHandler<TreeNode>() {
          public void onOpen(OpenEvent<TreeNode> event) {
            Object value = event.getTarget().getValue();
            if (!(value instanceof Category)) {
              return;
            }
            
            Category category = (Category) value;
            if (!prefetched.contains(category)) {
              prefetched.add(category);
              Prefetcher.prefetch(category.getSplitPoints());
            }
          }
        });
            
        // Always prefetch.
        Prefetcher.start();
    */
    // Change the history token when a main menu item is selected.
    selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
        public void onSelectionChange(SelectionChangeEvent event) {
            ContentWidget selected = selectionModel.getSelectedObject();
            if (selected != null) {
                History.newItem(getContentWidgetToken(selected), true);
            }
        }
    });

    // Setup a history handler to reselect the associate menu item.
    final ValueChangeHandler<String> historyHandler = new ValueChangeHandler<String>() {
        public void onValueChange(ValueChangeEvent<String> event) {
            // Get the content widget associated with the history token.
            ContentWidget contentWidget = treeModel.getContentWidgetForToken(event.getValue());
            if (contentWidget == null) {
                return;
            }

            // Expand the tree node associated with the content.
            Category category = treeModel.getCategoryForContentWidget(contentWidget);
            TreeNode node = mainMenu.getRootTreeNode();
            int childCount = node.getChildCount();
            for (int i = 0; i < childCount; i++) {
                if (node.getChildValue(i) == category) {
                    node.setChildOpen(i, true, true);
                    break;
                }
            }

            // Select the node in the tree.
            selectionModel.setSelected(contentWidget, true);

            // Display the content widget.
            displayContentWidget(contentWidget);
        }
    };
    History.addValueChangeHandler(historyHandler);

    // Show the initial example.
    if (History.getToken().length() > 0) {
        History.fireCurrentHistoryState();
    } else {
        // Use the first token available.
        TreeNode root = mainMenu.getRootTreeNode();
        TreeNode category = root.setChildOpen(0, true);
        ContentWidget content = (ContentWidget) category.getChildValue(0);
        selectionModel.setSelected(content, true);
    }

    // Generate a site map.
    createSiteMap(contentWidgets);
}

From source file:com.github.gwt.sample.showcase.client.Showcase.java

License:Apache License

private void bindHistory(final SingleSelectionModel<Widget> selectionModel,
        final LeftMenuTreeViewModel treeModel) {

    // Setup a history handler to reselect the associate menu item.
    final CellTree mainMenu = showCase.getMainMenu();

    // Change the history token when a main menu item is selected.
    selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
        public void onSelectionChange(SelectionChangeEvent event) {
            Widget selected = selectionModel.getSelectedObject();
            if (selected != null) {
                History.newItem(selected.getTitle(), true);
            }//from ww w  . j  av  a2s  . c o  m
        }
    });

    final ValueChangeHandler<String> historyHandler = new ValueChangeHandler<String>() {
        public void onValueChange(ValueChangeEvent<String> event) {
            // Get the content widget associated with the history token.
            Widget contentWidget = treeModel.getWidget(event.getValue());
            if (contentWidget == null) {
                return;
            }

            // Expand the tree node associated with the content.
            LeftMenuTreeViewModel.Category category = treeModel.getCategoryForWidget(contentWidget);
            TreeNode node = mainMenu.getRootTreeNode();
            int childCount = node.getChildCount();
            for (int i = 0; i < childCount; i++) {
                if (node.getChildValue(i) == category) {
                    node.setChildOpen(i, true, true);
                    break;
                }
            }

            // Select the node in the tree.
            selectionModel.setSelected(contentWidget, true);

            // Display the content widget.
            displayContentWidget(contentWidget);
        }

        /**
         * Set the content to the {@link com.google.gwt.user.client.ui.Widget}.
         *
         * @param content the {@link com.google.gwt.user.client.ui.Widget} to display
         */
        private void displayContentWidget(Widget content) {
            if (content == null) {
                return;
            }

            showCase.setContent(content);
            Window.setTitle("Showcase of Features: " + content.getTitle());
        }
    };
    History.addValueChangeHandler(historyHandler);
}

From source file:com.github.gwt.sample.showcase.client.Showcase.java

License:Apache License

private void showInitialExample(final SingleSelectionModel<Widget> selectionModel) {
    final CellTree mainMenu = showCase.getMainMenu();
    // Show the initial example.
    if (History.getToken().length() > 0) {
        History.fireCurrentHistoryState();
    } else {//from   ww  w  .j a v  a2 s . co  m

        // Use the first token available.
        TreeNode root = mainMenu.getRootTreeNode();
        TreeNode category = root.setChildOpen(0, true);
        Widget content = (Widget) category.getChildValue(0);
        selectionModel.setSelected(content, true);
    }
}

From source file:com.goodow.web.ui.client.nav.TagsUi.java

License:Apache License

private void openTreeNodeWhenSelected(final TreeNode parent, final String path) {
    logger.finest("openTreeNodeWhenSelected");
    for (int i = 0, len = parent.getChildCount(); i < len; i++) {
        com.goodow.web.mvp.shared.tree.TreeNodeProxy childNode = (com.goodow.web.mvp.shared.tree.TreeNodeProxy) parent
                .getChildValue(i);/*from w w w  .j  a  v a  2 s .  com*/
        String childId = childNode.getPath();
        if (path.startsWith(childId)) {
            TreeNode childOpen = parent.setChildOpen(i, true, true);
            if (childOpen != null && !path.equals(childId)) {
                openTreeNodeWhenSelected(childOpen, path);
            } else if (path.equals(childId)) {
                if (!selectionModel.isSelected(childNode)) {
                    selectionModel.setSelected(childNode, true);
                }
                continue;
            }
        } else {
            parent.setChildOpen(i, false, false);
        }
    }
}

From source file:com.google.gwt.sample.showcase.client.Showcase.java

License:Apache License

/**
 * This is the entry point method./* ww w .  j  a va 2s  . c  o  m*/
 */
public void onModuleLoad() {
    // Generate the source code and css for the examples
    GWT.create(GeneratorInfo.class);

    // Inject global styles.
    injectThemeStyleSheet();
    images.css().ensureInjected();

    // Initialize the constants.
    ShowcaseConstants constants = GWT.create(ShowcaseConstants.class);

    // Create the application shell.
    final SingleSelectionModel<ContentWidget> selectionModel = new SingleSelectionModel<ContentWidget>();
    final MainMenuTreeViewModel treeModel = new MainMenuTreeViewModel(constants, selectionModel);
    Set<ContentWidget> contentWidgets = treeModel.getAllContentWidgets();
    shell = new ShowcaseShell(treeModel);
    RootLayoutPanel.get().add(shell);

    // Prefetch examples when opening the Category tree nodes.
    final List<Category> prefetched = new ArrayList<Category>();
    final CellTree mainMenu = shell.getMainMenu();
    mainMenu.addOpenHandler(new OpenHandler<TreeNode>() {
        public void onOpen(OpenEvent<TreeNode> event) {
            Object value = event.getTarget().getValue();
            if (!(value instanceof Category)) {
                return;
            }

            Category category = (Category) value;
            if (!prefetched.contains(category)) {
                prefetched.add(category);
                Prefetcher.prefetch(category.getSplitPoints());
            }
        }
    });

    // Always prefetch.
    Prefetcher.start();

    // Change the history token when a main menu item is selected.
    selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
        public void onSelectionChange(SelectionChangeEvent event) {
            ContentWidget selected = selectionModel.getSelectedObject();
            if (selected != null) {
                History.newItem(getContentWidgetToken(selected), true);
            }
        }
    });

    // Setup a history handler to reselect the associate menu item.
    final ValueChangeHandler<String> historyHandler = new ValueChangeHandler<String>() {
        public void onValueChange(ValueChangeEvent<String> event) {
            // Get the content widget associated with the history token.
            ContentWidget contentWidget = treeModel.getContentWidgetForToken(event.getValue());
            if (contentWidget == null) {
                return;
            }

            // Expand the tree node associated with the content.
            Category category = treeModel.getCategoryForContentWidget(contentWidget);
            TreeNode node = mainMenu.getRootTreeNode();
            int childCount = node.getChildCount();
            for (int i = 0; i < childCount; i++) {
                if (node.getChildValue(i) == category) {
                    node.setChildOpen(i, true, true);
                    break;
                }
            }

            // Select the node in the tree.
            selectionModel.setSelected(contentWidget, true);

            // Display the content widget.
            displayContentWidget(contentWidget);
        }
    };
    History.addValueChangeHandler(historyHandler);

    // Show the initial example.
    if (History.getToken().length() > 0) {
        History.fireCurrentHistoryState();
    } else {
        // Use the first token available.
        TreeNode root = mainMenu.getRootTreeNode();
        TreeNode category = root.setChildOpen(0, true);
        ContentWidget content = (ContentWidget) category.getChildValue(0);
        selectionModel.setSelected(content, true);
    }

    // Generate a site map.
    createSiteMap(contentWidgets);
}

From source file:org.eclipse.emf.eef.runtime.ui.gwt.editor.widget.EEFTreeViewer.java

License:Open Source License

public void expand(List<?> path) {
    TreeNode node = getRootTreeNode();
    if (node != null) {
        LOOP: for (int i = 0, size = path.size(); i < size; ++i) {
            Object segment = path.get(i);
            for (int j = 0, count = node.getChildCount(); j < count; ++j) {
                Object childValue = node.getChildValue(j);
                if (childValue.equals(segment)) {
                    node = node.setChildOpen(j, true);
                    continue LOOP;
                }/*from w  w w .java2 s  . c  o m*/
            }
            break;
        }
    }
}

From source file:org.gss_project.gss.web.client.CellTreeViewUtils.java

License:Open Source License

private void refreshNodeContainingResource(TreeNode node, RestResource resource) {
    int count = node.getChildCount();
    for (int i = 0; i < count; i++) {
        if (node.getChildValue(i).equals(resource)) {
            if (node.getChildValue(i) instanceof RestResourceWrapper
                    && ((RestResourceWrapper) node.getChildValue(i)).getResource().getFolders().size() == 0)
                return;
            node.setChildOpen(i, false, true);
            node.setChildOpen(i, true, true);
            return;
        } else if (node.isChildOpen(i)) {
            TreeNode n = node.setChildOpen(i, true);
            if (n != null)
                refreshNodeContainingResource(n, resource);
        }/*from  w  w  w.  j a v a2s . c om*/
    }

}

From source file:org.gss_project.gss.web.client.CellTreeViewUtils.java

License:Open Source License

void refreshNodeContainingResource(TreeNode node, String uri) {
    int count = node.getChildCount();
    for (int i = 0; i < count; i++) {
        if (node.isChildOpen(i)) {
            if (node.getChildValue(i) instanceof RestResource
                    && ((RestResource) node.getChildValue(i)).getUri().equals(uri)) {
                if (node.getChildValue(i) instanceof RestResourceWrapper
                        && ((RestResourceWrapper) node.getChildValue(i)).getResource().getFolders().size() == 0)
                    return;
                node.setChildOpen(i, false, true);
                node.setChildOpen(i, true, true);
                return;
            } else {
                TreeNode n = node.setChildOpen(i, true);
                if (n != null)
                    refreshNodeContainingResource(n, uri);
            }/*from w  w  w  . j  a  va 2  s  .com*/
        }
    }
}

From source file:org.gss_project.gss.web.client.CellTreeViewUtils.java

License:Open Source License

private void openNodeContainingResource(TreeNode node, RestResource resource) {
    int count = node.getChildCount();
    for (int i = 0; i < count; i++) {

        if (node.getChildValue(i).equals(resource)) {
            if (node.getChildValue(i) instanceof RestResourceWrapper
                    && ((RestResourceWrapper) node.getChildValue(i)).getResource().getFolders().size() == 0)
                return;
            node.setChildOpen(i, true, true);
            return;
        } else {/*  w  w w .j a v a2s  .c o  m*/
            if (node.isChildOpen(i)) {
                TreeNode n = node.setChildOpen(i, true);
                if (n != null)
                    openNodeContainingResource(n, resource);
            }
        }

    }
}

From source file:org.gss_project.gss.web.client.CellTreeViewUtils.java

License:Open Source License

private void openNodeContainingResource(TreeNode node, RestResource resource, RefreshHandler handler) {
    int count = node.getChildCount();
    for (int i = 0; i < count; i++) {
        if (node.getChildValue(i).equals(resource)) {
            if (node.getChildValue(i) instanceof RestResourceWrapper
                    && ((RestResourceWrapper) node.getChildValue(i)).getResource().getFolders().size() == 0)
                return;
            //node.setChildOpen(i, false, true);
            node.setChildOpen(i, true, true);
            handler.onRefresh();/*from   w w  w  .  ja  va2s .  co m*/
            return;
        } else {
            if (node.isChildOpen(i)) {
                TreeNode n = node.setChildOpen(i, true);
                if (n != null)
                    openNodeContainingResource(n, resource, handler);
            }
        }

    }
}