Package com.extjs.gxt.ui.client.widget.treepanel.TreePanel

Examples of com.extjs.gxt.ui.client.widget.treepanel.TreePanel.TreeNode

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  }

  @Override
  @SuppressWarnings({"unchecked", "rawtypes"})
  protected void onDragStart(DNDEvent e) {
    TreeNode n = tree.findNode((Element) e.getDragEvent().getStartElement());
    if (n == null) {
      e.setCancelled(true);
      return;
    }
    ModelData m = n.getModel();
    if (!tree.getView().isSelectableTarget(m, (Element) e.getDragEvent().getStartElement())) {
      e.setCancelled(true);
      return;
    }
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    event.setCancelled(false);
  }

  @Override
  protected void showFeedback(DNDEvent event) {
    final TreeNode overItem = tree.findNode(event.getTarget());
    if (overItem == null) {
      clearStyles(event);
    }

    if (overItem != null && event.getDropTarget().component == event.getDragSource().component) {
      TreePanel source = (TreePanel) event.getDragSource().component;

      List<ModelData> list = source.getSelectionModel().getSelection();
      ModelData overModel = overItem.getModel();
      for (int i = 0; i < list.size(); i++) {
        ModelData sel = list.get(i);
        if (overModel == sel) {
          clearStyles(event);
          return;
        }

        List<ModelData> children = tree.getStore().getChildren(sel, true);
        if (children.contains(overItem.getModel())) {
          clearStyles(event);
          return;
        }
      }
    }

    boolean append = feedback == Feedback.APPEND || feedback == Feedback.BOTH;
    boolean insert = feedback == Feedback.INSERT || feedback == Feedback.BOTH;

    if (overItem == null) {
      handleAppend(event, overItem);
    } else if (insert) {
      handleInsert(event, overItem);
    } else if ((!overItem.isLeaf() || allowDropOnLeaf) && append) {
      handleAppend(event, overItem);
    } else {
      if (activeItem != null) {
        tree.getView().onDropChange(activeItem, false);
      }
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    return node.text;

  }

  public boolean isSelectableTarget(M m, Element target) {
    TreeNode n = findNode(m);
    if (n == null) {
      return false;
    }
    boolean isNotJointTarget = false;
    if (GXT.isIE6) {
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  public void onSelectChange(M model, boolean select) {
    if (select) {
      tree.setExpanded(treeStore.getParent(model), true);
    }
    TreeNode node = findNode(model);
    if (node != null) {
      Element e = getElementContainer(node);
      if (e != null) {
        El.fly(e).setStyleName("x-ftree2-selected", select);
        if (select) {
          String tid = tree.getId();
          Accessibility.setState(tree.getElement(), "aria-activedescendant", tid + "__" + node.getElement().getId());
        }
      }
    }
  }
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        if (be.isShiftKey() && lastSelected != null) {
          List<M> items = new ArrayList<M>();
          if (lastSelected == sel) {
            return;
          }
          TreeNode selNode = tree.findNode(lastSelected);
          TreeNode itemNode = tree.findNode(sel);
          if (selNode.element != null && itemNode.element != null) {
            if (selNode.element.getAbsoluteTop() < itemNode.element.getAbsoluteTop()) {
              M next = next();
              while (next != null) {
                items.add(next);
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    event.setCancelled(false);
  }

  @Override
  protected void showFeedback(DNDEvent event) {
    final TreeNode overItem = tree.findNode(event.getTarget());
    if (overItem == null) {
      clearStyles(event);
    }

    if (overItem != null && event.getDropTarget().component == event.getDragSource().component) {
      TreePanel source = (TreePanel) event.getDragSource().component;

      List<ModelData> list = source.getSelectionModel().getSelection();
      ModelData overModel = overItem.getModel();
      for (int i = 0; i < list.size(); i++) {
        ModelData sel = list.get(i);
        if (overModel == sel) {
          clearStyles(event);
          return;
        }

        List<ModelData> children = tree.getStore().getChildren(sel, true);
        if (children.contains(overItem.getModel())) {
          clearStyles(event);
          return;
        }
      }
    }

    boolean append = feedback == Feedback.APPEND || feedback == Feedback.BOTH;
    boolean insert = feedback == Feedback.INSERT || feedback == Feedback.BOTH;

    if (overItem == null) {
      handleAppend(event, overItem);
    } else if (insert) {
      handleInsert(event, overItem);
    } else if ((!overItem.isLeaf() || allowDropOnLeaf) && append) {
      handleAppend(event, overItem);
    } else {
      if (activeItem != null) {
        tree.getView().onDropChange(activeItem, false);
      }
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  }

  @Override
  @SuppressWarnings({"unchecked", "rawtypes"})
  protected void onDragStart(DNDEvent e) {
    TreeNode n = tree.findNode(e.getTarget());
    if (n == null) {
      e.setCancelled(true);
      return;
    }
    ModelData m = n.getModel();
    if (!tree.getView().isSelectableTarget(m, e.getTarget())) {
      e.setCancelled(true);
      return;
    }
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    event.setCancelled(false);
  }

  @Override
  protected void showFeedback(DNDEvent event) {
    final TreeNode overItem = tree.findNode(event.getTarget());
    if (overItem == null) {
      clearStyles(event);
    }

    if (overItem != null && event.getDropTarget().component == event.getDragSource().component) {
      TreePanel source = (TreePanel) event.getDragSource().component;

      List<ModelData> list = source.getSelectionModel().getSelection();
      ModelData overModel = overItem.getModel();
      for (int i = 0; i < list.size(); i++) {
        ModelData sel = list.get(i);
        if (overModel == sel) {
          clearStyles(event);
          return;
        }

        List<ModelData> children = tree.getStore().getChildren(sel, true);
        if (children.contains(overItem.getModel())) {
          clearStyles(event);
          return;
        }
      }
    }

    boolean append = feedback == Feedback.APPEND || feedback == Feedback.BOTH;
    boolean insert = feedback == Feedback.INSERT || feedback == Feedback.BOTH;

    if (overItem == null) {
      handleAppend(event, overItem);
    } else if (insert) {
      handleInsert(event, overItem);
    } else if ((!overItem.isLeaf() || allowDropOnLeaf) && append) {
      handleAppend(event, overItem);
    } else {
      if (activeItem != null) {
        tree.getView().onDropChange(activeItem, false);
      }
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  }

  @Override
  @SuppressWarnings({"unchecked", "rawtypes"})
  protected void onDragStart(DNDEvent e) {
    TreeNode n = tree.findNode((Element) e.getDragEvent().getStartElement());
    if (n == null) {
      e.setCancelled(true);
      return;
    }
    ModelData m = n.getModel();
    if (!tree.getView().isSelectableTarget(m, (Element) e.getDragEvent().getStartElement())) {
      e.setCancelled(true);
      return;
    }
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    return node.text;

  }

  public boolean isSelectableTarget(M m, Element target) {
    TreeNode n = findNode(m);
    if (n == null) {
      return false;
    }
    boolean isNotJointTarget = false;
    if (GXT.isIE6) {
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Related Classes of com.extjs.gxt.ui.client.widget.treepanel.TreePanel.TreeNode

  • com.extjs.gxt.ui.client.dnd.TreePanelDragSource
  • com.extjs.gxt.ui.client.dnd.TreePanelDropTarget
  • com.extjs.gxt.ui.client.event.TreePanelEvent
  • com.extjs.gxt.ui.client.widget.treepanel.TreePanelSelectionModel
  • com.extjs.gxt.ui.client.widget.treepanel.TreePanelView
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