Add Baidu searc suggestion

app/src/main/java/acr/browser/lightning/fragment/GeneralSettingsFragment.java

@@ -117,6 +117,9 @@ public class GeneralSettingsFragment extends LightningPreferenceFragment impleme
             case SUGGESTION_DUCK:
                 searchsSuggestions.setSummary(R.string.powered_by_duck);
                 break;
+            case SUGGESTION_BAIDU:
+                searchsSuggestions.setSummary(R.string.powered_by_baidu);
+                break;
             case SUGGESTION_NONE:
                 searchsSuggestions.setSummary(R.string.search_suggestions_off);
                 break;
@@ -360,7 +363,7 @@ public class GeneralSettingsFragment extends LightningPreferenceFragment impleme
         AlertDialog.Builder picker = new AlertDialog.Builder(mActivity);
         picker.setTitle(getResources().getString(R.string.search_suggestions));
 
-        int currentChoice = 2;
+        int currentChoice = 3;
 
         switch (mPreferenceManager.getSearchSuggestionChoice()) {
             case SUGGESTION_GOOGLE:
@@ -369,9 +372,12 @@ public class GeneralSettingsFragment extends LightningPreferenceFragment impleme
             case SUGGESTION_DUCK:
                 currentChoice = 1;
                 break;
-            case SUGGESTION_NONE:
+            case SUGGESTION_BAIDU:
                 currentChoice = 2;
                 break;
+            case SUGGESTION_NONE:
+                currentChoice = 3;
+                break;
         }
 
         picker.setSingleChoiceItems(R.array.suggestions, currentChoice,
@@ -388,6 +394,10 @@ public class GeneralSettingsFragment extends LightningPreferenceFragment impleme
                             searchsSuggestions.setSummary(R.string.powered_by_duck);
                             break;
                         case 2:
+                            mPreferenceManager.setSearchSuggestionChoice(Suggestion.SUGGESTION_BAIDU);
+                            searchsSuggestions.setSummary(R.string.powered_by_baidu);
+                            break;
+                        case 3:
                             mPreferenceManager.setSearchSuggestionChoice(Suggestion.SUGGESTION_NONE);
                             searchsSuggestions.setSummary(R.string.search_suggestions_off);
                             break;

app/src/main/java/acr/browser/lightning/preference/PreferenceManager.java

@@ -70,6 +70,7 @@ public class PreferenceManager {
     public enum Suggestion {
         SUGGESTION_GOOGLE,
         SUGGESTION_DUCK,
+        SUGGESTION_BAIDU,
         SUGGESTION_NONE
     }
 

app/src/main/java/acr/browser/lightning/search/BaiduSuggestionsModel.java

@@ -0,0 +1,57 @@
+package acr.browser.lightning.search;
+
+import android.app.Application;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+
+import java.io.BufferedInputStream;
+import java.io.InputStream;
+import java.util.List;
+
+import acr.browser.lightning.R;
+import acr.browser.lightning.database.HistoryItem;
+import acr.browser.lightning.utils.FileUtils;
+
+// http://unionsug.baidu.com/su?wd=encodeURIComponent(U)
+// http://suggestion.baidu.com/s?wd=encodeURIComponent(U)&action=opensearch
+
+
+class BaiduSuggestionsModel extends BaseSuggestionsModel {
+
+    @NonNull private static final String ENCODING = "UTF-8";
+    @Nullable private static XmlPullParser sXpp;
+    @NonNull private final String mSearchSubtitle;
+
+    BaiduSuggestionsModel(@NonNull Application application) {
+        super(application, ENCODING);
+        mSearchSubtitle = application.getString(R.string.suggestion);
+    }
+
+    @NonNull
+    protected String createQueryUrl(@NonNull String query, @NonNull String language) {
+        return "http://suggestion.baidu.com/s?wd=" + query + "&action=opensearch";
+    }
+
+    @Override
+    protected void parseResults(@NonNull InputStream inputStream, @NonNull List<HistoryItem> results) throws Exception {
+        String content = FileUtils.readStringFromStream(inputStream, "GBK");
+        JSONArray respArray = new JSONArray(content);
+        JSONArray jsonArray = respArray.getJSONArray(1);
+        int counter = 0;
+        for (int n = 0, size = jsonArray.length(); n < size; n++) {
+            String suggestion = jsonArray.getString(n);
+            results.add(new HistoryItem(mSearchSubtitle + " \"" + suggestion + '"',
+                    suggestion, R.drawable.ic_search));
+            counter++;
+            if (counter >= MAX_RESULTS) {
+                break;
+            }
+        }
+    }
+}

app/src/main/java/acr/browser/lightning/search/SuggestionsAdapter.java

@@ -304,6 +304,8 @@ public class SuggestionsAdapter extends BaseAdapter implements Filterable {
             return SuggestionsManager.createGoogleQueryObservable(query, mApplication);
         } else if (mSuggestionChoice == PreferenceManager.Suggestion.SUGGESTION_DUCK) {
             return SuggestionsManager.createDuckQueryObservable(query, mApplication);
+        } else if (mSuggestionChoice == PreferenceManager.Suggestion.SUGGESTION_BAIDU) {
+            return SuggestionsManager.createBaiduQueryObservable(query, mApplication);
         } else {
             return Single.empty();
         }

app/src/main/java/acr/browser/lightning/search/SuggestionsManager.java

@@ -34,6 +34,21 @@ class SuggestionsManager {
         });
     }
 
+    @NonNull
+    static Single<List<HistoryItem>> createBaiduQueryObservable(@NonNull final String query,
+                                                                 @NonNull final Application application) {
+        return Single.create(new SingleAction<List<HistoryItem>>() {
+            @Override
+            public void onSubscribe(@NonNull final SingleSubscriber<List<HistoryItem>> subscriber) {
+                sIsTaskExecuting = true;
+                List<HistoryItem> results = new BaiduSuggestionsModel(application).getResults(query);
+                subscriber.onItem(results);
+                subscriber.onComplete();
+                sIsTaskExecuting = false;
+            }
+        });
+    }
+
     @NonNull
     static Single<List<HistoryItem>> createDuckQueryObservable(@NonNull final String query,
                                                                @NonNull final Application application) {

app/src/main/res/values-zh-rCN/strings.xml

@@ -186,6 +186,7 @@
     <string name="message_certificate_untrusted">不受信任的证书</string>
 
     <string name="powered_by_duck">由DuckDuckGo提供技术支持</string>
+    <string name="powered_by_baidu">由百度提供技术支持</string>
     <string name="search_suggestions_off">关闭搜索建议</string>
     <string name="http_proxy">HTTP代理</string>
     <string-array name="proxy_choices_array">

app/src/main/res/values/arrays.xml

@@ -22,6 +22,7 @@
     <string-array name="suggestions">
         <item>@string/powered_by_google</item>
         <item>@string/powered_by_duck</item>
+        <item>@string/powered_by_baidu</item>
         <item>@string/search_suggestions_off</item>
     </string-array>
 

app/src/main/res/values/strings.xml

@@ -133,6 +133,7 @@
     <string name="search_suggestions">Search suggestions</string>
     <string name="powered_by_google">Powered by Google</string>
     <string name="powered_by_duck">Powered by DuckDuckGo</string>
+    <string name="powered_by_baidu">Powered by Baidu</string>
     <string name="search_suggestions_off">No search suggestions</string>
     <string name="http_proxy">HTTP proxy</string>
     <string-array name="proxy_choices_array">