Add a way to choose the current spell checker

Bug: 5057977

Change-Id: I86366d6be0d59dfb7a80431fcc87f55b1f27a014

res/layout/preference_spellchecker.xml

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     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.
+-->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/pref_all"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="?android:attr/listPreferredItemHeight"
+    android:gravity="center_vertical">
+    <LinearLayout
+        android:id="@+id/pref_left_button"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:gravity="center_vertical"
+        android:clickable="true"
+        android:focusable="true"
+        android:background="?android:attr/selectableItemBackground">
+        <RelativeLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="15dip"
+            android:layout_marginRight="6dip"
+            android:layout_marginTop="6dip"
+            android:layout_marginBottom="6dip"
+            android:layout_weight="1">
+            <TextView
+                android:id="@+android:id/title"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:singleLine="true"
+                android:textAppearance="?android:attr/textAppearanceMedium"
+                android:ellipsize="marquee"
+                android:fadingEdge="horizontal"/>
+            <TextView
+                android:id="@android:id/summary"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@android:id/title"
+                android:layout_alignLeft="@android:id/title"
+                android:visibility="gone"
+                android:textAppearance="?android:attr/textAppearanceSmall"
+                android:textSize="13sp"
+                android:textColor="?android:attr/textColorSecondary"
+                android:maxLines="4" />
+        </RelativeLayout>
+    </LinearLayout>
+    <View
+        android:layout_width="2dip"
+        android:layout_height="match_parent"
+        android:layout_marginTop="5dip"
+        android:layout_marginBottom="5dip"
+        android:background="@android:drawable/divider_horizontal_dark" />
+    <ImageView
+        android:id="@+id/pref_right_button"
+        android:layout_width="wrap_content"
+        android:layout_height="fill_parent"
+        android:paddingLeft="15dip"
+        android:paddingRight="?android:attr/scrollbarSize"
+        android:src="@drawable/ic_sysbar_quicksettings"
+        android:contentDescription="@string/input_method_settings_button"
+        android:layout_gravity="center"
+        android:clickable="true"
+        android:focusable="true"
+        android:background="?android:attr/selectableItemBackground" />
+</LinearLayout>

src/com/android/settings/inputmethod/SingleSpellCheckerPreference.java

@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * 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.android.settings.inputmethod;
+
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+
+import android.content.Intent;
+
+import android.preference.Preference;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.textservice.SpellCheckerInfo;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+public class SingleSpellCheckerPreference extends Preference {
+    private static final float DISABLED_ALPHA = 0.4f;
+
+    private final SpellCheckerInfo mSpellCheckerInfo;
+
+    private SettingsPreferenceFragment mFragment;
+    private TextView mTitleText;
+    private TextView mSummaryText;
+    private View mPrefAll;
+    private View mPrefLeftButton;
+    private ImageView mSetingsButton;
+    private Intent mSettingsIntent;
+    private boolean mSelected;
+
+    public SingleSpellCheckerPreference(SettingsPreferenceFragment fragment, Intent settingsIntent,
+            SpellCheckerInfo sci) {
+        super(fragment.getActivity(), null, 0);
+        setLayoutResource(R.layout.preference_spellchecker);
+        mSpellCheckerInfo = sci;
+        mSelected = false;
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+        mPrefAll = view.findViewById(R.id.pref_all);
+        mPrefLeftButton = view.findViewById(R.id.pref_left_button);
+        mPrefLeftButton.setOnClickListener(
+                new OnClickListener() {
+                    @Override
+                    public void onClick(View arg0) {
+                        onLeftButtonClicked(arg0);
+                    }
+                });
+        mSetingsButton = (ImageView)view.findViewById(R.id.pref_right_button);
+        mTitleText = (TextView)view.findViewById(android.R.id.title);
+        mSummaryText = (TextView)view.findViewById(android.R.id.summary);
+        mSetingsButton.setOnClickListener(
+                new OnClickListener() {
+                    @Override
+                    public void onClick(View arg0) {
+                        onSettingsButtonClicked(arg0);
+                    }
+                });
+        updateSelectedState(mSelected);
+    }
+
+    private void onLeftButtonClicked(View arg0) {
+        final OnPreferenceClickListener listener = getOnPreferenceClickListener();
+        if (listener != null) {
+            listener.onPreferenceClick(this);
+        }
+    }
+
+    public SpellCheckerInfo getSpellCheckerInfo() {
+        return mSpellCheckerInfo;
+    }
+
+    public void updateSelectedState(boolean selected) {
+        if (mPrefAll != null) {
+            if (selected) {
+                // TODO: Use a color defined by the design guideline.
+                mPrefAll.setBackgroundColor(0x88006666);
+            } else {
+                mPrefAll.setBackgroundColor(0);
+            }
+            enableSettingsButton(selected);
+        }
+    }
+
+    public void setSelected(boolean selected) {
+        mSelected = selected;
+    }
+
+    protected void onSettingsButtonClicked(View arg0) {
+        if (mFragment != null && mSettingsIntent != null) {
+            mFragment.startActivity(mSettingsIntent);
+        }
+    }
+
+    private void enableSettingsButton(boolean enabled) {
+        if (mSetingsButton != null) {
+            if (mSettingsIntent == null) {
+                mSetingsButton.setVisibility(View.GONE);
+            } else {
+                mSetingsButton.setEnabled(enabled);
+                mSetingsButton.setClickable(enabled);
+                mSetingsButton.setFocusable(enabled);
+                if (!enabled) {
+                    mSetingsButton.setAlpha(DISABLED_ALPHA);
+                }
+            }
+        }
+    }
+}

src/com/android/settings/inputmethod/SpellCheckersSettings.java

@@ -26,12 +26,16 @@ import android.preference.PreferenceScreen;
 import android.view.textservice.SpellCheckerInfo;
 import android.view.textservice.TextServicesManager;
 
+import java.util.ArrayList;
+
 public class SpellCheckersSettings extends SettingsPreferenceFragment
-        implements Preference.OnPreferenceChangeListener {
+        implements Preference.OnPreferenceClickListener {
 
     private SpellCheckerInfo mCurrentSci;
     private SpellCheckerInfo[] mEnabledScis;
     private TextServicesManager mTsm;
+    private final ArrayList<SingleSpellCheckerPreference> mSpellCheckers =
+            new ArrayList<SingleSpellCheckerPreference>();
 
     @Override
     public void onCreate(Bundle icicle) {
@@ -41,11 +45,6 @@ public class SpellCheckersSettings extends SettingsPreferenceFragment
         updateScreen();
     }
 
-    @Override
-    public boolean onPreferenceChange(Preference arg0, Object arg1) {
-        return false;
-    }
-
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
         return false;
@@ -78,12 +77,28 @@ public class SpellCheckersSettings extends SettingsPreferenceFragment
         if (mCurrentSci == null || mEnabledScis == null) {
             return;
         }
-        // TODO: implement here
+        mSpellCheckers.clear();
         for (int i = 0; i < mEnabledScis.length; ++i) {
             final SpellCheckerInfo sci = mEnabledScis[i];
-            final PreferenceScreen scs = new PreferenceScreen(getActivity(), null);
-            scs.setTitle(sci.getId());
-            getPreferenceScreen().addPreference(scs);
+            final SingleSpellCheckerPreference scPref = new SingleSpellCheckerPreference(
+                    this, null, sci);
+            mSpellCheckers.add(scPref);
+            scPref.setTitle(sci.getId());
+            scPref.setSelected(mCurrentSci != null && mCurrentSci.getId().equals(sci.getId()));
+            getPreferenceScreen().addPreference(scPref);
         }
     }
+
+    @Override
+    public boolean onPreferenceClick(Preference arg0) {
+        for (SingleSpellCheckerPreference scp : mSpellCheckers) {
+            if (arg0.equals(scp)) {
+                scp.setSelected(true);
+                mTsm.setCurrentSpellChecker(scp.getSpellCheckerInfo());
+            } else {
+                scp.setSelected(false);
+            }
+        }
+        return true;
+    }
 }