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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Eclipse Public License, Version 1.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.eclipse.org/org/documents/epl-v10.php
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.ide.eclipse.adt.internal.wizards.templates;
     17 
     18 import static com.android.ide.eclipse.adt.AdtUtils.extractClassName;
     19 import static com.android.ide.eclipse.adt.internal.wizards.templates.NewProjectPage.ACTIVITY_NAME_SUFFIX;
     20 import static com.android.ide.eclipse.adt.internal.wizards.templates.NewProjectPage.LAYOUT_NAME_PREFIX;
     21 
     22 import com.android.ide.eclipse.adt.AdtUtils;
     23 
     24 import freemarker.template.SimpleScalar;
     25 import freemarker.template.TemplateMethodModel;
     26 import freemarker.template.TemplateModel;
     27 import freemarker.template.TemplateModelException;
     28 
     29 import java.util.List;
     30 
     31 /**
     32  * Method invoked by FreeMarker to convert a layout name into an appropriate
     33  * Activity class.
     34  */
     35 public class FmLayoutToActivityMethod implements TemplateMethodModel {
     36     @Override
     37     public TemplateModel exec(List args) throws TemplateModelException {
     38         if (args.size() != 1) {
     39             throw new TemplateModelException("Wrong arguments");
     40         }
     41 
     42         String name = args.get(0).toString();
     43 
     44         // Strip off the beginning portion of the layout name. The user might be typing
     45         // the activity name such that only a portion has been entered so far (e.g.
     46         // "MainActivi") and we want to chop off that portion too such that we don't
     47         // offer a layout name partially containing the activity suffix (e.g. "main_activi").
     48         if (name.startsWith(LAYOUT_NAME_PREFIX)) {
     49             name = name.substring(LAYOUT_NAME_PREFIX.length());
     50         }
     51 
     52         name = AdtUtils.underlinesToCamelCase(name);
     53         String className = extractClassName(name);
     54         if (className == null) {
     55             className = "My";
     56         }
     57         String activityName = className + ACTIVITY_NAME_SUFFIX;
     58 
     59         return new SimpleScalar(activityName);
     60     }
     61 }