Merge "Support accessibility shorcut secondary action (1/n)"

src/com/android/settings/accessibility/ShortcutPreference.java

@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2019 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.accessibility;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.CheckBox;
+
+import androidx.annotation.Nullable;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceViewHolder;
+
+import com.android.settings.R;
+
+/**
+ * Preference that can enable accessibility shortcut and let users choose which shortcut type they
+ * prefer to use.
+ */
+public class ShortcutPreference extends Preference {
+
+    private View.OnClickListener mCheckBoxListener;
+    private View.OnClickListener mSettingButtonListener;
+
+    private boolean mChecked = false;
+
+    ShortcutPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        setLayoutResource(R.layout.accessibility_shortcut_secondary_action);
+    }
+
+    @Override
+    public void onBindViewHolder(PreferenceViewHolder holder) {
+        super.onBindViewHolder(holder);
+        holder.itemView.setClickable(false);
+
+        final CheckBox checkBox = holder.itemView.findViewById(R.id.checkbox);
+        checkBox.setOnClickListener(mCheckBoxListener);
+        checkBox.setChecked(mChecked);
+        final View settingButton = holder.itemView.findViewById(R.id.settings_button);
+        settingButton.setOnClickListener(mSettingButtonListener);
+    }
+
+    /**
+     * Set the shortcut checkbox according to checked value.
+     *
+     * @param checked the state value of shortcut checkbox.
+     */
+    public void setChecked(boolean checked) {
+        if (checked != mChecked) {
+            mChecked = checked;
+            notifyChanged();
+        }
+    }
+
+    /**
+     * Set the given onClickListener to the SettingButtonListener.
+     *
+     * @param listener the given onClickListener.
+     */
+    public void setSettingButtonListener(@Nullable View.OnClickListener listener) {
+        mSettingButtonListener = listener;
+        notifyChanged();
+    }
+
+    /**
+     * Returns the callback to be invoked when the setting button is clicked.
+     *
+     * @return The callback to be invoked
+     */
+    public View.OnClickListener getSettingButtonListener() {
+        return mSettingButtonListener;
+    }
+
+    /**
+     * Set the given onClickListener to the CheckBoxListener.
+     *
+     * @param listener the given onClickListener.
+     */
+    public void setCheckBoxListener(@Nullable View.OnClickListener listener) {
+        mCheckBoxListener = listener;
+        notifyChanged();
+    }
+
+    /**
+     * Returns the callback to be invoked when the checkbox is clicked.
+     *
+     * @return The callback to be invoked
+     */
+    public View.OnClickListener getCheckBoxListener() {
+        return mCheckBoxListener;
+    }
+}