| /* |
| * 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.util.TypedValue; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.widget.LinearLayout; |
| import android.widget.Switch; |
| |
| 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 { |
| |
| /** |
| * Interface definition for a callback to be invoked when the toggle or settings has been |
| * clicked. |
| */ |
| public interface OnClickCallback { |
| /** |
| * Called when the settings view has been clicked. |
| * |
| * @param preference The clicked preference |
| */ |
| void onSettingsClicked(ShortcutPreference preference); |
| |
| /** |
| * Called when the toggle in ShortcutPreference has been clicked. |
| * |
| * @param preference The clicked preference |
| */ |
| void onToggleClicked(ShortcutPreference preference); |
| } |
| |
| private OnClickCallback mClickCallback = null; |
| private boolean mChecked = false; |
| private boolean mSettingsEditable = true; |
| |
| ShortcutPreference(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| setLayoutResource(R.layout.accessibility_shortcut_secondary_action); |
| setWidgetLayoutResource(R.layout.preference_widget_master_switch); |
| setIconSpaceReserved(true); |
| } |
| |
| @Override |
| public void onBindViewHolder(PreferenceViewHolder holder) { |
| super.onBindViewHolder(holder); |
| |
| final TypedValue outValue = new TypedValue(); |
| getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground, |
| outValue, true); |
| |
| final LinearLayout mainFrame = holder.itemView.findViewById(R.id.main_frame); |
| if (mainFrame != null) { |
| mainFrame.setOnClickListener(view -> callOnSettingsClicked()); |
| mainFrame.setClickable(mSettingsEditable); |
| mainFrame.setFocusable(mSettingsEditable); |
| mainFrame.setBackgroundResource( |
| mSettingsEditable ? outValue.resourceId : /* Remove background */ 0); |
| } |
| |
| Switch switchWidget = holder.itemView.findViewById(R.id.switchWidget); |
| if (switchWidget != null) { |
| // Consumes move events to ignore drag actions. |
| switchWidget.setOnTouchListener((v, event) -> { |
| return event.getActionMasked() == MotionEvent.ACTION_MOVE; |
| }); |
| switchWidget.setContentDescription( |
| getContext().getText(R.string.accessibility_shortcut_settings)); |
| switchWidget.setChecked(mChecked); |
| switchWidget.setOnClickListener(view -> callOnToggleClicked()); |
| switchWidget.setClickable(mSettingsEditable); |
| switchWidget.setFocusable(mSettingsEditable); |
| switchWidget.setBackgroundResource( |
| mSettingsEditable ? outValue.resourceId : /* Remove background */ 0); |
| } |
| |
| final View divider = holder.itemView.findViewById(R.id.divider); |
| if (divider != null) { |
| divider.setVisibility(mSettingsEditable ? View.VISIBLE : View.GONE); |
| } |
| |
| holder.itemView.setOnClickListener(view -> callOnToggleClicked()); |
| holder.itemView.setClickable(!mSettingsEditable); |
| holder.itemView.setFocusable(!mSettingsEditable); |
| } |
| |
| /** |
| * Sets the shortcut toggle according to checked value. |
| * |
| * @param checked the state value of shortcut toggle |
| */ |
| public void setChecked(boolean checked) { |
| if (mChecked != checked) { |
| mChecked = checked; |
| notifyChanged(); |
| } |
| } |
| |
| /** |
| * Gets the checked value of shortcut toggle. |
| * |
| * @return the checked value of shortcut toggle |
| */ |
| public boolean isChecked() { |
| return mChecked; |
| } |
| |
| /** |
| * Sets the editable state of Settings view. If the view cannot edited, it makes the settings |
| * and toggle be not touchable. The main ui handles touch event directly by {@link #onClick}. |
| */ |
| public void setSettingsEditable(boolean enabled) { |
| if (mSettingsEditable != enabled) { |
| mSettingsEditable = enabled; |
| notifyChanged(); |
| } |
| } |
| |
| public boolean isSettingsEditable() { |
| return mSettingsEditable; |
| } |
| |
| /** |
| * Sets the callback to be invoked when this preference is clicked by the user. |
| * |
| * @param callback the callback to be invoked |
| */ |
| public void setOnClickCallback(OnClickCallback callback) { |
| mClickCallback = callback; |
| } |
| |
| private void callOnSettingsClicked() { |
| if (mClickCallback != null) { |
| mClickCallback.onSettingsClicked(this); |
| } |
| } |
| |
| private void callOnToggleClicked() { |
| setChecked(!mChecked); |
| if (mClickCallback != null) { |
| mClickCallback.onToggleClicked(this); |
| } |
| } |
| } |