| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.myfaces.tobago.internal.component; |
| |
| import org.apache.myfaces.tobago.component.Attributes; |
| import org.apache.myfaces.tobago.component.Visual; |
| import org.apache.myfaces.tobago.model.ExpandedState; |
| import org.apache.myfaces.tobago.model.ScrollPosition; |
| import org.apache.myfaces.tobago.model.SelectedState; |
| import org.apache.myfaces.tobago.model.TreeState; |
| |
| import javax.el.ELContext; |
| import javax.el.ValueExpression; |
| import javax.faces.component.NamingContainer; |
| import javax.faces.component.UIComponent; |
| import javax.faces.context.FacesContext; |
| |
| /** |
| * {@link org.apache.myfaces.tobago.internal.taglib.component.TreeTagDeclaration} |
| */ |
| public abstract class AbstractUITree extends AbstractUIData implements NamingContainer, Visual { |
| |
| public static final String SUFFIX_PARENT = "parent"; |
| |
| private TreeState state; |
| |
| @Override |
| public void processValidators(final FacesContext facesContext) { |
| final int last = isRowsUnlimited() ? Integer.MAX_VALUE : getFirst() + getRows(); |
| for (int rowIndex = getFirst(); rowIndex < last; rowIndex++) { |
| setRowIndex(rowIndex); |
| if (!isRowAvailable()) { |
| break; |
| } |
| for (final UIComponent child : getChildren()) { |
| child.processValidators(facesContext); |
| } |
| } |
| setRowIndex(-1); |
| } |
| |
| @Override |
| public void processUpdates(final FacesContext facesContext) { |
| final int last = isRowsUnlimited() ? Integer.MAX_VALUE : getFirst() + getRows(); |
| for (int rowIndex = getFirst(); rowIndex < last; rowIndex++) { |
| setRowIndex(rowIndex); |
| if (!isRowAvailable()) { |
| break; |
| } |
| for (final UIComponent child : getChildren()) { |
| child.processUpdates(facesContext); |
| } |
| } |
| setRowIndex(-1); |
| } |
| |
| @Override |
| public boolean getRendersChildren() { |
| return true; |
| } |
| |
| @Override |
| public void processDecodes(final FacesContext facesContext) { |
| |
| if (!isRendered()) { |
| return; |
| } |
| |
| final int last = isRowsUnlimited() ? Integer.MAX_VALUE : getFirst() + getRows(); |
| for (int rowIndex = getFirst(); rowIndex < last; rowIndex++) { |
| setRowIndex(rowIndex); |
| if (!isRowAvailable()) { |
| break; |
| } |
| for (final UIComponent child : getChildren()) { |
| child.processDecodes(facesContext); |
| } |
| } |
| setRowIndex(-1); |
| |
| decode(facesContext); |
| } |
| |
| /* XXX |
| @Override |
| public void validate(FacesContext context) { |
| */ |
| |
| // todo: validate must be written new, without TreeState |
| /* |
| if (isRequired() && getState().getSelection().size() == 0) { |
| setValid(false); |
| FacesMessage facesMessage = MessageUtils.createFacesMessage(context, |
| UISelectOne.MESSAGE_VALUE_REQUIRED, FacesMessage.SEVERITY_ERROR); |
| context.addMessage(getClientId(context), facesMessage); |
| } |
| |
| String selectable = ComponentUtils.getStringAttribute(this, selectable); |
| if (selectable != null && selectable.endsWith("LeafOnly")) { |
| |
| Set<DefaultMutableTreeNode> selection = getState().getSelection(); |
| |
| for (DefaultMutableTreeNode node : selection) { |
| if (!node.isLeaf()) { |
| FacesMessage facesMessage = MessageUtils.createFacesMessage( |
| context, MESSAGE_NOT_LEAF, FacesMessage.SEVERITY_ERROR); |
| context.addMessage(getClientId(context), facesMessage); |
| break; // don't continue iteration, no dublicate messages needed |
| } |
| } |
| } |
| */ |
| // call all validators |
| /* |
| if (getValidators() != null) { |
| for (Validator validator : getValidators()) { |
| try { |
| validator.validate(context, this, null); |
| } catch (ValidatorException ve) { |
| // If the validator throws an exception, we're |
| // invalid, and we need to add a message |
| setValid(false); |
| FacesMessage message = ve.getFacesMessage(); |
| if (message != null) { |
| message.setSeverity(FacesMessage.SEVERITY_ERROR); |
| context.addMessage(getClientId(context), message); |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void updateModel(FacesContext facesContext) { |
| // nothing to update for tree's |
| // TODO: updating the model here and *NOT* in the decode phase |
| } |
| */ |
| public void setState(final TreeState state) { |
| this.state = state; |
| } |
| |
| public TreeState getState() { |
| if (state != null) { |
| return state; |
| } |
| |
| final ELContext elContext = FacesContext.getCurrentInstance().getELContext(); |
| final ValueExpression expression = getValueExpression(Attributes.state.getName()); |
| |
| if (expression != null) { |
| TreeState treeState = (TreeState) expression.getValue(elContext); |
| if (treeState == null) { |
| treeState = new TreeState(new ExpandedState(2), new SelectedState(), new ScrollPosition()); |
| expression.setValue(elContext, treeState); |
| } |
| return treeState; |
| } |
| |
| state = new TreeState(new ExpandedState(2), new SelectedState(), new ScrollPosition()); |
| return state; |
| } |
| |
| @Override |
| public SelectedState getSelectedState() { |
| return getState().getSelectedState(); |
| } |
| |
| @Override |
| public ExpandedState getExpandedState() { |
| return getState().getExpandedState(); |
| } |
| |
| @Override |
| public void restoreState(final FacesContext context, final Object componentState) { |
| final Object[] values = (Object[]) componentState; |
| super.restoreState(context, values[0]); |
| state = (TreeState) values[1]; |
| } |
| |
| @Override |
| public Object saveState(final FacesContext context) { |
| final Object[] values = new Object[2]; |
| values[0] = super.saveState(context); |
| values[1] = state; |
| return values; |
| } |
| } |