src/com/android/settings/inputmethod/TrackpadGestureDialogFragment.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * Copyright (C) 2023 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 static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
 import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_GESTURAL;

 import android.app.Activity;
 import android.app.Dialog;
 import android.content.Context;
 import android.graphics.Color;
 import android.graphics.Point;
 import android.os.Bundle;
 import android.view.Display;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewTreeObserver;
 import android.view.Window;
 import android.view.WindowInsets;
 import android.view.WindowManager;
 import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.ImageView;

 import androidx.viewpager.widget.PagerAdapter;
 import androidx.viewpager.widget.ViewPager;

 import com.android.settings.R;

 import com.google.android.material.bottomsheet.BottomSheetBehavior;
 import com.google.android.material.bottomsheet.BottomSheetDialogFragment;

 import java.util.ArrayList;
 import java.util.Arrays;

 public class TrackpadGestureDialogFragment extends BottomSheetDialogFragment {

     private Context mContext;
     private LayoutInflater mInflater;
     private View mViewArrowPrevious;
     private View mViewArrowNext;
     private ViewPager mViewPager;
     private ArrayList<View> mPageList;
     private ImageView[] mDotIndicators;
     private View[] mViewPagerItems;
     private Button mButtonStartSkip;
     private Button mButtonStartRestart;
     private Button mButtonEndNext;
     private Button mButtonEndDone;

     private static final int DOT_INDICATOR_SIZE = 12;
     private static final int DOT_INDICATOR_LEFT_PADDING = 6;
     private static final int DOT_INDICATOR_RIGHT_PADDING = 6;

     public TrackpadGestureDialogFragment() {}

     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
         mContext = context;
     }

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
     }

     @Override
     public void onStart() {
         super.onStart();
         final Dialog dialog = getDialog();
         if (dialog == null) {
             return;
         }
         Window window = dialog.getWindow();
         if (window == null) {
             return;
         }
         setLayoutEdgeToEdge(window);
         final Point size = getScreenSize();
         final WindowManager.LayoutParams attributes = window.getAttributes();
         attributes.width = (int) (size.x * 0.75);
         window.setAttributes(attributes);
     }

     @Override
     public void onPause() {
         super.onPause();
         dismiss();
     }

     private static void setLayoutEdgeToEdge(Window window) {
         View windowDecorView = window.getDecorView();
         windowDecorView.setSystemUiVisibility(
                 windowDecorView.getSystemUiVisibility()
                         | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                         | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
         window.setNavigationBarColor(Color.TRANSPARENT);
     }

     @Override
     public Dialog onCreateDialog(final Bundle savedInstanceState) {
         Dialog dialog = super.onCreateDialog(savedInstanceState);

         mInflater = mContext.getSystemService(LayoutInflater.class);
         View contentView = mInflater.inflate(R.layout.trackpad_gesture_preview, null);
         addViewPager(contentView);
         dialog.setContentView(contentView);
         Window gestureDialogWindow = dialog.getWindow();
         gestureDialogWindow.setType(TYPE_SYSTEM_DIALOG);

         // Workaround for solve issue about dialog not full expanded when landscape.
         FrameLayout bottomSheet = (FrameLayout)
                 dialog.findViewById(com.google.android.material.R.id.design_bottom_sheet);
         bottomSheet.setBackgroundResource(android.R.color.transparent);
         BottomSheetBehavior<FrameLayout> behavior = BottomSheetBehavior.from(bottomSheet);
         if (!isGestureNavigationEnabled()) {
             behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
         }
         ViewTreeObserver observer = contentView.getViewTreeObserver();
         observer.addOnGlobalLayoutListener(
                 new ViewTreeObserver.OnGlobalLayoutListener() {
                     @Override
                     public void onGlobalLayout() {
                         contentView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                         int contentViewHeight = contentView.getMeasuredHeight();
                         int navigationBarHeight = getNavigationBarHeight();
                         behavior.setPeekHeight(contentViewHeight - navigationBarHeight);
                     }
                 });

         // The gesture education view shouldn't be draggable."
         behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
             @Override
             public void onStateChanged(View bottomSheet, int newState) {
                 if (newState == BottomSheetBehavior.STATE_DRAGGING) {
                     if (isGestureNavigationEnabled()) {
                         behavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
                     } else {
                         behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
                     }
                 }
             }

             @Override
             public void onSlide(View bottomSheet, float slideOffset) {
                 // Do nothing.
             }
         });

         return dialog;
     }

     private ArrayList<Integer> getViewPagerResource() {
         return new ArrayList<Integer>(
                 Arrays.asList(
                         R.layout.gesture_tip1_go_home,
                         R.layout.gesture_tip2_go_back,
                         R.layout.gesture_tip3_recent_apps,
                         R.layout.gesture_tip4_notifications,
                         R.layout.gesture_tip5_switch_apps));
     }

     private void addViewPager(View preview) {
         mViewPager = preview.findViewById(R.id.viewpager);
         int viewPagerResourceSize = getViewPagerResource().size();
         mViewPagerItems = new View[viewPagerResourceSize];
         for (int i = 0; i < viewPagerResourceSize; i++) {
             mViewPagerItems[i] =
                     mInflater.inflate(getViewPagerResource().get(i), null /* root */);
         }

         mPageList = new ArrayList<View>();
         for (int i = 0; i < mViewPagerItems.length; i++) {
             mPageList.add(mViewPagerItems[i]);
         }

         mViewPager.setAdapter(new GesturePagerAdapter(mPageList));

         mButtonStartRestart = (Button) preview.findViewById(R.id.button_restart);
         mButtonStartRestart.setOnClickListener(v -> {
             final int firstPos = mViewPager.getCurrentItem() - mViewPagerItems.length;
             mViewPager.setCurrentItem(firstPos, true);
         });

         mButtonEndDone = (Button) preview.findViewById(R.id.button_done);
         mButtonEndDone.setOnClickListener(v -> {
             dismiss();
         });

         mButtonStartSkip = (Button) preview.findViewById(R.id.button_skip);
         mButtonStartSkip.setOnClickListener(v -> {
             dismiss();
         });

         mButtonEndNext = (Button) preview.findViewById(R.id.button_next);
         mButtonEndNext.setOnClickListener(v -> {
             final int nextPos = mViewPager.getCurrentItem() + 1;
             mViewPager.setCurrentItem(nextPos, true);
         });

         mViewPager.addOnPageChangeListener(createPageListener());
         final ViewGroup viewGroup = (ViewGroup) preview.findViewById(R.id.viewGroup);
         mDotIndicators = new ImageView[mPageList.size()];
         for (int i = 0; i < mPageList.size(); i++) {
             final ImageView imageView = new ImageView(mContext);
             final ViewGroup.MarginLayoutParams lp =
                     new ViewGroup.MarginLayoutParams(DOT_INDICATOR_SIZE, DOT_INDICATOR_SIZE);
             lp.setMargins(DOT_INDICATOR_LEFT_PADDING, 0, DOT_INDICATOR_RIGHT_PADDING, 0);
             imageView.setLayoutParams(lp);
             mDotIndicators[i] = imageView;
             viewGroup.addView(mDotIndicators[i]);
         }
     }

     private static class GesturePagerAdapter extends PagerAdapter {
         private final ArrayList<View> mPageViewList;

         GesturePagerAdapter(ArrayList<View> pageViewList) {
             mPageViewList = pageViewList;
         }

         @Override
         public void destroyItem(ViewGroup container, int position, Object object) {
             if (mPageViewList.get(position) != null) {
                 container.removeView(mPageViewList.get(position));
             }
         }

         @Override
         public Object instantiateItem(ViewGroup container, int position) {
             container.addView(mPageViewList.get(position));
             return mPageViewList.get(position);
         }

         @Override
         public int getCount() {
             return mPageViewList.size();
         }

         @Override
         public boolean isViewFromObject(View view, Object object) {
             return object == view;
         }
     }

     private ViewPager.OnPageChangeListener createPageListener() {
         return new ViewPager.OnPageChangeListener() {
             @Override
             public void onPageScrolled(
                     int position, float positionOffset, int positionOffsetPixels) {
                 if (positionOffset != 0) {
                     for (int i = 0; i < mPageList.size(); i++) {
                         mViewPagerItems[i].setVisibility(View.VISIBLE);
                     }
                 } else {
                     updateIndicator(position);
                 }
             }

             @Override
             public void onPageSelected(int position) {}

             @Override
             public void onPageScrollStateChanged(int state) {}
         };
     }

     private void updateIndicator(int position) {
         for (int i = 0; i < mPageList.size(); i++) {
             if (position == i) {
                 mDotIndicators[i].setBackgroundResource(
                         R.drawable.ic_color_page_indicator_focused);
                 mViewPagerItems[i].setVisibility(View.VISIBLE);
             } else {
                 mDotIndicators[i].setBackgroundResource(
                         R.drawable.ic_color_page_indicator_unfocused);
                 mViewPagerItems[i].setVisibility(View.INVISIBLE);
             }
         }

         if (position >= 0 && position < mViewPagerItems.length - 1) {
             mButtonStartSkip.setVisibility(View.VISIBLE);
             mButtonEndNext.setVisibility(View.VISIBLE);
             mButtonStartRestart.setVisibility(View.GONE);
             mButtonEndDone.setVisibility(View.GONE);
         } else {
             mButtonStartSkip.setVisibility(View.GONE);
             mButtonEndNext.setVisibility(View.GONE);
             mButtonStartRestart.setVisibility(View.VISIBLE);
             mButtonEndDone.setVisibility(View.VISIBLE);
         }
     }

     private Point getScreenSize() {
         final Point size = new Point();
         final Activity activity = (Activity) mContext;
         final Display display = activity.getWindowManager().getDefaultDisplay();
         display.getSize(size);
         return size;
     }

     private int getNavigationBarHeight() {
         final Activity activity = (Activity) mContext;
         WindowInsets insets =
                 activity.getWindowManager().getCurrentWindowMetrics().getWindowInsets();
         return insets.getInsets(WindowInsets.Type.navigationBars()).bottom;
     }

     private boolean isGestureNavigationEnabled() {
         return NAV_BAR_MODE_GESTURAL == mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_navBarInteractionMode);
     }
 }
	/*
	* Copyright (C) 2023 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 static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
	import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_GESTURAL;

	import android.app.Activity;
	import android.app.Dialog;
	import android.content.Context;
	import android.graphics.Color;
	import android.graphics.Point;
	import android.os.Bundle;
	import android.view.Display;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.ViewTreeObserver;
	import android.view.Window;
	import android.view.WindowInsets;
	import android.view.WindowManager;
	import android.widget.Button;
	import android.widget.FrameLayout;
	import android.widget.ImageView;

	import androidx.viewpager.widget.PagerAdapter;
	import androidx.viewpager.widget.ViewPager;

	import com.android.settings.R;

	import com.google.android.material.bottomsheet.BottomSheetBehavior;
	import com.google.android.material.bottomsheet.BottomSheetDialogFragment;

	import java.util.ArrayList;
	import java.util.Arrays;

	public class TrackpadGestureDialogFragment extends BottomSheetDialogFragment {

	private Context mContext;
	private LayoutInflater mInflater;
	private View mViewArrowPrevious;
	private View mViewArrowNext;
	private ViewPager mViewPager;
	private ArrayList<View> mPageList;
	private ImageView[] mDotIndicators;
	private View[] mViewPagerItems;
	private Button mButtonStartSkip;
	private Button mButtonStartRestart;
	private Button mButtonEndNext;
	private Button mButtonEndDone;

	private static final int DOT_INDICATOR_SIZE = 12;
	private static final int DOT_INDICATOR_LEFT_PADDING = 6;
	private static final int DOT_INDICATOR_RIGHT_PADDING = 6;

	public TrackpadGestureDialogFragment() {}

	@Override
	public void onAttach(Context context) {
	super.onAttach(context);
	mContext = context;
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	}

	@Override
	public void onStart() {
	super.onStart();
	final Dialog dialog = getDialog();
	if (dialog == null) {
	return;
	}
	Window window = dialog.getWindow();
	if (window == null) {
	return;
	}
	setLayoutEdgeToEdge(window);
	final Point size = getScreenSize();
	final WindowManager.LayoutParams attributes = window.getAttributes();
	attributes.width = (int) (size.x * 0.75);
	window.setAttributes(attributes);
	}

	@Override
	public void onPause() {
	super.onPause();
	dismiss();
	}

	private static void setLayoutEdgeToEdge(Window window) {
	View windowDecorView = window.getDecorView();
	windowDecorView.setSystemUiVisibility(
	windowDecorView.getSystemUiVisibility()
	\| View.SYSTEM_UI_FLAG_LAYOUT_STABLE
	\| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
	window.setNavigationBarColor(Color.TRANSPARENT);
	}

	@Override
	public Dialog onCreateDialog(final Bundle savedInstanceState) {
	Dialog dialog = super.onCreateDialog(savedInstanceState);

	mInflater = mContext.getSystemService(LayoutInflater.class);
	View contentView = mInflater.inflate(R.layout.trackpad_gesture_preview, null);
	addViewPager(contentView);
	dialog.setContentView(contentView);
	Window gestureDialogWindow = dialog.getWindow();
	gestureDialogWindow.setType(TYPE_SYSTEM_DIALOG);

	// Workaround for solve issue about dialog not full expanded when landscape.
	FrameLayout bottomSheet = (FrameLayout)
	dialog.findViewById(com.google.android.material.R.id.design_bottom_sheet);
	bottomSheet.setBackgroundResource(android.R.color.transparent);
	BottomSheetBehavior<FrameLayout> behavior = BottomSheetBehavior.from(bottomSheet);
	if (!isGestureNavigationEnabled()) {
	behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
	}
	ViewTreeObserver observer = contentView.getViewTreeObserver();
	observer.addOnGlobalLayoutListener(
	new ViewTreeObserver.OnGlobalLayoutListener() {
	@Override
	public void onGlobalLayout() {
	contentView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
	int contentViewHeight = contentView.getMeasuredHeight();
	int navigationBarHeight = getNavigationBarHeight();
	behavior.setPeekHeight(contentViewHeight - navigationBarHeight);
	}
	});

	// The gesture education view shouldn't be draggable."
	behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
	@Override
	public void onStateChanged(View bottomSheet, int newState) {
	if (newState == BottomSheetBehavior.STATE_DRAGGING) {
	if (isGestureNavigationEnabled()) {
	behavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
	} else {
	behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
	}
	}
	}

	@Override
	public void onSlide(View bottomSheet, float slideOffset) {
	// Do nothing.
	}
	});

	return dialog;
	}

	private ArrayList<Integer> getViewPagerResource() {
	return new ArrayList<Integer>(
	Arrays.asList(
	R.layout.gesture_tip1_go_home,
	R.layout.gesture_tip2_go_back,
	R.layout.gesture_tip3_recent_apps,
	R.layout.gesture_tip4_notifications,
	R.layout.gesture_tip5_switch_apps));
	}

	private void addViewPager(View preview) {
	mViewPager = preview.findViewById(R.id.viewpager);
	int viewPagerResourceSize = getViewPagerResource().size();
	mViewPagerItems = new View[viewPagerResourceSize];
	for (int i = 0; i < viewPagerResourceSize; i++) {
	mViewPagerItems[i] =
	mInflater.inflate(getViewPagerResource().get(i), null /* root */);
	}

	mPageList = new ArrayList<View>();
	for (int i = 0; i < mViewPagerItems.length; i++) {
	mPageList.add(mViewPagerItems[i]);
	}

	mViewPager.setAdapter(new GesturePagerAdapter(mPageList));

	mButtonStartRestart = (Button) preview.findViewById(R.id.button_restart);
	mButtonStartRestart.setOnClickListener(v -> {
	final int firstPos = mViewPager.getCurrentItem() - mViewPagerItems.length;
	mViewPager.setCurrentItem(firstPos, true);
	});

	mButtonEndDone = (Button) preview.findViewById(R.id.button_done);
	mButtonEndDone.setOnClickListener(v -> {
	dismiss();
	});

	mButtonStartSkip = (Button) preview.findViewById(R.id.button_skip);
	mButtonStartSkip.setOnClickListener(v -> {
	dismiss();
	});

	mButtonEndNext = (Button) preview.findViewById(R.id.button_next);
	mButtonEndNext.setOnClickListener(v -> {
	final int nextPos = mViewPager.getCurrentItem() + 1;
	mViewPager.setCurrentItem(nextPos, true);
	});

	mViewPager.addOnPageChangeListener(createPageListener());
	final ViewGroup viewGroup = (ViewGroup) preview.findViewById(R.id.viewGroup);
	mDotIndicators = new ImageView[mPageList.size()];
	for (int i = 0; i < mPageList.size(); i++) {
	final ImageView imageView = new ImageView(mContext);
	final ViewGroup.MarginLayoutParams lp =
	new ViewGroup.MarginLayoutParams(DOT_INDICATOR_SIZE, DOT_INDICATOR_SIZE);
	lp.setMargins(DOT_INDICATOR_LEFT_PADDING, 0, DOT_INDICATOR_RIGHT_PADDING, 0);
	imageView.setLayoutParams(lp);
	mDotIndicators[i] = imageView;
	viewGroup.addView(mDotIndicators[i]);
	}
	}

	private static class GesturePagerAdapter extends PagerAdapter {
	private final ArrayList<View> mPageViewList;

	GesturePagerAdapter(ArrayList<View> pageViewList) {
	mPageViewList = pageViewList;
	}

	@Override
	public void destroyItem(ViewGroup container, int position, Object object) {
	if (mPageViewList.get(position) != null) {
	container.removeView(mPageViewList.get(position));
	}
	}

	@Override
	public Object instantiateItem(ViewGroup container, int position) {
	container.addView(mPageViewList.get(position));
	return mPageViewList.get(position);
	}

	@Override
	public int getCount() {
	return mPageViewList.size();
	}

	@Override
	public boolean isViewFromObject(View view, Object object) {
	return object == view;
	}
	}

	private ViewPager.OnPageChangeListener createPageListener() {
	return new ViewPager.OnPageChangeListener() {
	@Override
	public void onPageScrolled(
	int position, float positionOffset, int positionOffsetPixels) {
	if (positionOffset != 0) {
	for (int i = 0; i < mPageList.size(); i++) {
	mViewPagerItems[i].setVisibility(View.VISIBLE);
	}
	} else {
	updateIndicator(position);
	}
	}

	@Override
	public void onPageSelected(int position) {}

	@Override
	public void onPageScrollStateChanged(int state) {}
	};
	}

	private void updateIndicator(int position) {
	for (int i = 0; i < mPageList.size(); i++) {
	if (position == i) {
	mDotIndicators[i].setBackgroundResource(
	R.drawable.ic_color_page_indicator_focused);
	mViewPagerItems[i].setVisibility(View.VISIBLE);
	} else {
	mDotIndicators[i].setBackgroundResource(
	R.drawable.ic_color_page_indicator_unfocused);
	mViewPagerItems[i].setVisibility(View.INVISIBLE);
	}
	}

	if (position >= 0 && position < mViewPagerItems.length - 1) {
	mButtonStartSkip.setVisibility(View.VISIBLE);
	mButtonEndNext.setVisibility(View.VISIBLE);
	mButtonStartRestart.setVisibility(View.GONE);
	mButtonEndDone.setVisibility(View.GONE);
	} else {
	mButtonStartSkip.setVisibility(View.GONE);
	mButtonEndNext.setVisibility(View.GONE);
	mButtonStartRestart.setVisibility(View.VISIBLE);
	mButtonEndDone.setVisibility(View.VISIBLE);
	}
	}

	private Point getScreenSize() {
	final Point size = new Point();
	final Activity activity = (Activity) mContext;
	final Display display = activity.getWindowManager().getDefaultDisplay();
	display.getSize(size);
	return size;
	}

	private int getNavigationBarHeight() {
	final Activity activity = (Activity) mContext;
	WindowInsets insets =
	activity.getWindowManager().getCurrentWindowMetrics().getWindowInsets();
	return insets.getInsets(WindowInsets.Type.navigationBars()).bottom;
	}

	private boolean isGestureNavigationEnabled() {
	return NAV_BAR_MODE_GESTURAL == mContext.getResources().getInteger(
	com.android.internal.R.integer.config_navBarInteractionMode);
	}
	}