Home | History | Annotate | Download | only in configuration 
      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
      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.common.resources.configuration;
     18 
     19 import com.android.resources.ResourceEnum;
     20 import com.android.resources.UiMode;
     21 
     22 /**
     23  * Resource Qualifier for UI Mode.
     24  */
     25 public final class UiModeQualifier extends EnumBasedResourceQualifier {
     26 
     27     public static final String NAME = "UI Mode";
     28 
     29     private UiMode mValue;
     30 
     31     public UiModeQualifier() {
     32         // pass
     33     }
     34 
     35     public UiModeQualifier(UiMode value) {
     36         mValue = value;
     37     }
     38 
     39     public UiMode getValue() {
     40         return mValue;
     41     }
     42 
     43     @Override
     44     ResourceEnum getEnumValue() {
     45         return mValue;
     46     }
     47 
     48     @Override
     49     public String getName() {
     50         return NAME;
     51     }
     52 
     53     @Override
     54     public String getShortName() {
     55         return NAME;
     56     }
     57 
     58     @Override
     59     public boolean checkAndSet(String value, FolderConfiguration config) {
     60         UiMode mode = UiMode.getEnum(value);
     61         if (mode != null) {
     62             UiModeQualifier qualifier = new UiModeQualifier(mode);
     63             config.setUiModeQualifier(qualifier);
     64             return true;
     65         }
     66 
     67         return false;
     68     }
     69 
     70     @Override
     71     public boolean isMatchFor(ResourceQualifier qualifier) {
     72         // only normal is a match for all UI mode, because it's not an actual mode.
     73         if (mValue == UiMode.NORMAL) {
     74             return true;
     75         }
     76 
     77         // others must be an exact match
     78         return ((UiModeQualifier)qualifier).mValue == mValue;
     79     }
     80 
     81     @Override
     82     public boolean isBetterMatchThan(ResourceQualifier compareTo, ResourceQualifier reference) {
     83         if (compareTo == null) {
     84             return true;
     85         }
     86 
     87         UiModeQualifier compareQualifier = (UiModeQualifier)compareTo;
     88         UiModeQualifier referenceQualifier = (UiModeQualifier)reference;
     89 
     90         if (compareQualifier.getValue() == referenceQualifier.getValue()) {
     91             // what we have is already the best possible match (exact match)
     92             return false;
     93         } else  if (mValue == referenceQualifier.mValue) {
     94             // got new exact value, this is the best!
     95             return true;
     96         } else if (mValue == UiMode.NORMAL) {
     97             // else "normal" can be a match in case there's no exact match
     98             return true;
     99         }
    100 
    101         return false;
    102     }
    103 }
    104