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      1 /*
      2  * Copyright (C) 2014 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 
     17 package com.android.ide.eclipse.adt.internal.editors.layout;
     18 
     19 import java.util.ArrayList;
     20 import java.util.List;
     21 
     22 import org.w3c.dom.Element;
     23 
     24 import com.android.ide.common.rendering.api.ActionBarCallback;
     25 import com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart;
     26 import com.android.ide.eclipse.adt.internal.editors.manifest.ManifestInfo;
     27 import com.android.ide.eclipse.adt.internal.editors.manifest.ManifestInfo.ActivityAttributes;
     28 import com.google.common.base.Splitter;
     29 import com.google.common.collect.Iterables;
     30 
     31 import static com.android.SdkConstants.TOOLS_URI;
     32 import static com.android.SdkConstants.VALUE_SPLIT_ACTION_BAR_WHEN_NARROW;
     33 
     34 public class ActionBarHandler extends ActionBarCallback {
     35 
     36     private final GraphicalEditorPart mEditor;
     37 
     38     ActionBarHandler(GraphicalEditorPart editor) {
     39         mEditor = editor;
     40     }
     41 
     42     @Override
     43     public List<String> getMenuIdNames() {
     44         String commaSeparatedMenus = getXmlAttribute(ATTR_MENU);
     45         List<String> menus = new ArrayList<String>();
     46         Iterables.addAll(menus, Splitter.on(',').trimResults().omitEmptyStrings()
     47                 .split(commaSeparatedMenus));
     48         return menus;
     49     }
     50 
     51     @Override
     52     public boolean getSplitActionBarWhenNarrow() {
     53         ActivityAttributes attributes = getActivityAttributes();
     54         if (attributes != null) {
     55           return VALUE_SPLIT_ACTION_BAR_WHEN_NARROW.equals(attributes.getUiOptions());
     56         }
     57         return false;
     58     }
     59 
     60     @Override
     61     public int getNavigationMode() {
     62         String navMode = getXmlAttribute(ATTR_NAV_MODE);
     63         if (navMode.equalsIgnoreCase(VALUE_NAV_MODE_TABS)) {
     64           return NAVIGATION_MODE_TABS;
     65         }
     66         if (navMode.equalsIgnoreCase(VALUE_NAV_MODE_LIST)) {
     67           return NAVIGATION_MODE_LIST;
     68         }
     69         return NAVIGATION_MODE_STANDARD;
     70     }
     71 
     72     @Override
     73     public HomeButtonStyle getHomeButtonStyle() {
     74         ActivityAttributes attributes = getActivityAttributes();
     75         if (attributes != null && attributes.getParentActivity() != null) {
     76           return HomeButtonStyle.SHOW_HOME_AS_UP;
     77         }
     78         return HomeButtonStyle.NONE;
     79     }
     80 
     81     private ActivityAttributes getActivityAttributes() {
     82         ManifestInfo manifest = ManifestInfo.get(mEditor.getProject());
     83         String activity = mEditor.getConfigurationChooser().getConfiguration().getActivity();
     84         return manifest.getActivityAttributes(activity);
     85     }
     86 
     87     private String getXmlAttribute(String name) {
     88         Element element = mEditor.getModel().getUiRoot().getXmlDocument().getDocumentElement();
     89         String value = element.getAttributeNS(TOOLS_URI, name);
     90         if (value == null) {
     91             return "";
     92         }
     93         return value.trim();
     94     }
     95 }
     96