| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed 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 com.google.gwt.uibinder.rebind.model; |
| |
| import com.google.gwt.uibinder.rebind.IndentedWriter; |
| import com.google.gwt.uibinder.rebind.Tokenator; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Model class for SafeHtml templates used in generated |
| * UiBinder rendering implementation. |
| */ |
| |
| public class HtmlTemplates { |
| private final List<HtmlTemplate> htmlTemplates = new ArrayList<HtmlTemplate>(); |
| private final Set<String> safeConstantTokens = new HashSet<String>(); |
| |
| public HtmlTemplates() { |
| } |
| |
| /** |
| * Add a SafeHtml template and an instance method for invoking the template |
| * to the generated BinderImpl class. These templates are declared at the |
| * beginning of the class and instantiated with a GWT.create(Template.class |
| * call. |
| * <p> |
| * Note that the UiBinder#tokenator is used to determine the arguments to |
| * the generated SafeHtml template. |
| * |
| * @return String the function to call this template |
| */ |
| public String addSafeHtmlTemplate(String html, Tokenator t) |
| throws IllegalArgumentException { |
| if (html == null) { |
| throw new IllegalArgumentException("Template html cannot be null"); |
| } |
| if (t == null) { |
| throw new IllegalArgumentException("Template tokenator cannot be null"); |
| } |
| |
| HtmlTemplate ht = new HtmlTemplate(html, t, this); |
| htmlTemplates.add(ht); |
| |
| return ht.writeTemplateCall(); |
| } |
| |
| public int getNumTemplates() { |
| return htmlTemplates.size(); |
| } |
| |
| public List<HtmlTemplate> getTemplates() { |
| return htmlTemplates; |
| } |
| |
| public boolean isEmpty() { |
| return htmlTemplates.isEmpty(); |
| } |
| |
| public boolean isSafeConstant(String token) { |
| return safeConstantTokens.contains(token); |
| } |
| |
| public void noteSafeConstant(String token) { |
| safeConstantTokens.add(token); |
| } |
| |
| public void writeTemplates(IndentedWriter w) { |
| for (HtmlTemplate t : htmlTemplates) { |
| t.writeTemplate(w); |
| } |
| } |
| |
| /** |
| * Increment the total number of templates. |
| */ |
| protected int nextTemplateId() { |
| return htmlTemplates.size() + 1; |
| } |
| } |