src/com/android/launcher3/views/ArrowTipView.java - LeafOS-Project/android_packages_apps_Launcher3 - Gitiles

 /*
  * Copyright (C) 2008 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.launcher3.views;

 import android.content.Context;
 import android.graphics.CornerPathEffect;
 import android.graphics.Paint;
 import android.graphics.drawable.ShapeDrawable;
 import android.os.Handler;
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.TextView;

 import androidx.annotation.Nullable;
 import androidx.annotation.Px;
 import androidx.core.content.ContextCompat;

 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.graphics.TriangleShape;

 /**
  * A base class for arrow tip view in launcher
  */
 public class ArrowTipView extends AbstractFloatingView {

     private static final String TAG = ArrowTipView.class.getSimpleName();
     private static final long AUTO_CLOSE_TIMEOUT_MILLIS = 10 * 1000;
     private static final long SHOW_DELAY_MS = 200;
     private static final long SHOW_DURATION_MS = 300;
     private static final long HIDE_DURATION_MS = 100;

     protected final BaseDraggingActivity mActivity;
     private final Handler mHandler = new Handler();
     private Runnable mOnClosed;

     public ArrowTipView(Context context) {
         super(context, null, 0);
         mActivity = BaseDraggingActivity.fromContext(context);
         init(context);
     }

     @Override
     public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
         if (ev.getAction() == MotionEvent.ACTION_DOWN) {
             close(true);
         }
         return false;
     }

     @Override
     protected void handleClose(boolean animate) {
         if (mIsOpen) {
             if (animate) {
                 animate().alpha(0f)
                         .withLayer()
                         .setStartDelay(0)
                         .setDuration(HIDE_DURATION_MS)
                         .setInterpolator(Interpolators.ACCEL)
                         .withEndAction(() -> mActivity.getDragLayer().removeView(this))
                         .start();
             } else {
                 animate().cancel();
                 mActivity.getDragLayer().removeView(this);
             }
             if (mOnClosed != null) mOnClosed.run();
             mIsOpen = false;
         }
     }

     @Override
     protected boolean isOfType(int type) {
         return (type & TYPE_ON_BOARD_POPUP) != 0;
     }

     private void init(Context context) {
         inflate(context, R.layout.arrow_toast, this);
         setOrientation(LinearLayout.VERTICAL);
         View dismissButton = findViewById(R.id.dismiss);
         dismissButton.setOnClickListener(view -> {
             handleClose(true);
         });

         View arrowView = findViewById(R.id.arrow);
         ViewGroup.LayoutParams arrowLp = arrowView.getLayoutParams();
         ShapeDrawable arrowDrawable = new ShapeDrawable(TriangleShape.create(
                 arrowLp.width, arrowLp.height, false));
         Paint arrowPaint = arrowDrawable.getPaint();
         TypedValue typedValue = new TypedValue();
         context.getTheme()
                 .resolveAttribute(android.R.attr.colorAccent, typedValue, true);
         arrowPaint.setColor(ContextCompat.getColor(getContext(), typedValue.resourceId));
         // The corner path effect won't be reflected in the shadow, but shouldn't be noticeable.
         arrowPaint.setPathEffect(new CornerPathEffect(
                 context.getResources().getDimension(R.dimen.arrow_toast_corner_radius)));
         arrowView.setBackground(arrowDrawable);

         mIsOpen = true;

         mHandler.postDelayed(() -> handleClose(true), AUTO_CLOSE_TIMEOUT_MILLIS);
     }

     /**
      * Show Tip with specified string and Y location
      */
     public ArrowTipView show(String text, int top) {
         return show(text, Gravity.CENTER_HORIZONTAL, 0, top);
     }

     /**
      * Show the ArrowTipView (tooltip) center, start, or end aligned.
      *
      * @param text The text to be shown in the tooltip.
      * @param gravity The gravity aligns the tooltip center, start, or end.
      * @param arrowMarginStart The margin from start to place arrow (ignored if center)
      * @param top  The Y coordinate of the bottom of tooltip.
      * @return The tooltip.
      */
     public ArrowTipView show(String text, int gravity, int arrowMarginStart, int top) {
         ((TextView) findViewById(R.id.text)).setText(text);
         ViewGroup parent = mActivity.getDragLayer();
         parent.addView(this);

         DragLayer.LayoutParams params = (DragLayer.LayoutParams) getLayoutParams();
         params.gravity = gravity;
         LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) findViewById(
                 R.id.arrow).getLayoutParams();
         lp.gravity = gravity;
         if (gravity == Gravity.END) {
             lp.setMarginEnd(parent.getMeasuredWidth() - arrowMarginStart);
         } else if (gravity == Gravity.START) {
             lp.setMarginStart(arrowMarginStart);
         }
         requestLayout();

         params.leftMargin = mActivity.getDeviceProfile().workspacePadding.left;
         params.rightMargin = mActivity.getDeviceProfile().workspacePadding.right;
         post(() -> setY(top - getHeight()));
         setAlpha(0);
         animate()
                 .alpha(1f)
                 .withLayer()
                 .setStartDelay(SHOW_DELAY_MS)
                 .setDuration(SHOW_DURATION_MS)
                 .setInterpolator(Interpolators.DEACCEL)
                 .start();
         return this;
     }

     /**
      * Show the ArrowTipView (tooltip) custom aligned.
      *
      * @param text The text to be shown in the tooltip.
      * @param arrowXCoord The X coordinate for the arrow on the tip. The arrow is usually in the
      *                    center of ArrowTipView unless the ArrowTipView goes beyond screen margin.
      * @param yCoord The Y coordinate of the bottom of the tooltip.
      * @return The tool tip view.
      */
     @Nullable public ArrowTipView showAtLocation(String text, int arrowXCoord, int yCoord) {
         ViewGroup parent = mActivity.getDragLayer();
         @Px int parentViewWidth = parent.getWidth();
         @Px int textViewWidth = getContext().getResources()
                 .getDimensionPixelSize(R.dimen.widget_picker_education_tip_width);
         @Px int minViewMargin = getContext().getResources()
                 .getDimensionPixelSize(R.dimen.widget_picker_education_tip_min_margin);
         if (parentViewWidth < textViewWidth + 2 * minViewMargin) {
             Log.w(TAG, "Cannot display tip on a small screen of size: " + parentViewWidth);
             return null;
         }

         TextView textView = findViewById(R.id.text);
         textView.setText(text);
         textView.setWidth(textViewWidth);
         parent.addView(this);
         requestLayout();

         post(() -> setY(yCoord - getHeight()));
         post(() -> {
             float halfWidth = getWidth() / 2f;
             float xCoord;
             if (arrowXCoord - halfWidth < minViewMargin) {
                 xCoord = minViewMargin;
             } else if (arrowXCoord + halfWidth > parentViewWidth - minViewMargin) {
                 xCoord = parentViewWidth - minViewMargin - getWidth();
             } else {
                 xCoord = arrowXCoord - halfWidth;
             }
             setX(xCoord);
             findViewById(R.id.arrow).setX(arrowXCoord - xCoord);
             requestLayout();
         });

         setAlpha(0);
         animate()
                 .alpha(1f)
                 .withLayer()
                 .setStartDelay(SHOW_DELAY_MS)
                 .setDuration(SHOW_DURATION_MS)
                 .setInterpolator(Interpolators.DEACCEL)
                 .start();
         return this;
     }

     /**
      * Register a callback fired when toast is hidden
      */
     public ArrowTipView setOnClosedCallback(Runnable runnable) {
         mOnClosed = runnable;
         return this;
     }
 }
	/*
	* Copyright (C) 2008 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.launcher3.views;

	import android.content.Context;
	import android.graphics.CornerPathEffect;
	import android.graphics.Paint;
	import android.graphics.drawable.ShapeDrawable;
	import android.os.Handler;
	import android.util.Log;
	import android.util.TypedValue;
	import android.view.Gravity;
	import android.view.MotionEvent;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.LinearLayout;
	import android.widget.TextView;

	import androidx.annotation.Nullable;
	import androidx.annotation.Px;
	import androidx.core.content.ContextCompat;

	import com.android.launcher3.AbstractFloatingView;
	import com.android.launcher3.BaseDraggingActivity;
	import com.android.launcher3.R;
	import com.android.launcher3.anim.Interpolators;
	import com.android.launcher3.dragndrop.DragLayer;
	import com.android.launcher3.graphics.TriangleShape;

	/**
	* A base class for arrow tip view in launcher
	*/
	public class ArrowTipView extends AbstractFloatingView {

	private static final String TAG = ArrowTipView.class.getSimpleName();
	private static final long AUTO_CLOSE_TIMEOUT_MILLIS = 10 * 1000;
	private static final long SHOW_DELAY_MS = 200;
	private static final long SHOW_DURATION_MS = 300;
	private static final long HIDE_DURATION_MS = 100;

	protected final BaseDraggingActivity mActivity;
	private final Handler mHandler = new Handler();
	private Runnable mOnClosed;

	public ArrowTipView(Context context) {
	super(context, null, 0);
	mActivity = BaseDraggingActivity.fromContext(context);
	init(context);
	}

	@Override
	public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
	if (ev.getAction() == MotionEvent.ACTION_DOWN) {
	close(true);
	}
	return false;
	}

	@Override
	protected void handleClose(boolean animate) {
	if (mIsOpen) {
	if (animate) {
	animate().alpha(0f)
	.withLayer()
	.setStartDelay(0)
	.setDuration(HIDE_DURATION_MS)
	.setInterpolator(Interpolators.ACCEL)
	.withEndAction(() -> mActivity.getDragLayer().removeView(this))
	.start();
	} else {
	animate().cancel();
	mActivity.getDragLayer().removeView(this);
	}
	if (mOnClosed != null) mOnClosed.run();
	mIsOpen = false;
	}
	}

	@Override
	protected boolean isOfType(int type) {
	return (type & TYPE_ON_BOARD_POPUP) != 0;
	}

	private void init(Context context) {
	inflate(context, R.layout.arrow_toast, this);
	setOrientation(LinearLayout.VERTICAL);
	View dismissButton = findViewById(R.id.dismiss);
	dismissButton.setOnClickListener(view -> {
	handleClose(true);
	});

	View arrowView = findViewById(R.id.arrow);
	ViewGroup.LayoutParams arrowLp = arrowView.getLayoutParams();
	ShapeDrawable arrowDrawable = new ShapeDrawable(TriangleShape.create(
	arrowLp.width, arrowLp.height, false));
	Paint arrowPaint = arrowDrawable.getPaint();
	TypedValue typedValue = new TypedValue();
	context.getTheme()
	.resolveAttribute(android.R.attr.colorAccent, typedValue, true);
	arrowPaint.setColor(ContextCompat.getColor(getContext(), typedValue.resourceId));
	// The corner path effect won't be reflected in the shadow, but shouldn't be noticeable.
	arrowPaint.setPathEffect(new CornerPathEffect(
	context.getResources().getDimension(R.dimen.arrow_toast_corner_radius)));
	arrowView.setBackground(arrowDrawable);

	mIsOpen = true;

	mHandler.postDelayed(() -> handleClose(true), AUTO_CLOSE_TIMEOUT_MILLIS);
	}

	/**
	* Show Tip with specified string and Y location
	*/
	public ArrowTipView show(String text, int top) {
	return show(text, Gravity.CENTER_HORIZONTAL, 0, top);
	}

	/**
	* Show the ArrowTipView (tooltip) center, start, or end aligned.
	*
	* @param text The text to be shown in the tooltip.
	* @param gravity The gravity aligns the tooltip center, start, or end.
	* @param arrowMarginStart The margin from start to place arrow (ignored if center)
	* @param top The Y coordinate of the bottom of tooltip.
	* @return The tooltip.
	*/
	public ArrowTipView show(String text, int gravity, int arrowMarginStart, int top) {
	((TextView) findViewById(R.id.text)).setText(text);
	ViewGroup parent = mActivity.getDragLayer();
	parent.addView(this);

	DragLayer.LayoutParams params = (DragLayer.LayoutParams) getLayoutParams();
	params.gravity = gravity;
	LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) findViewById(
	R.id.arrow).getLayoutParams();
	lp.gravity = gravity;
	if (gravity == Gravity.END) {
	lp.setMarginEnd(parent.getMeasuredWidth() - arrowMarginStart);
	} else if (gravity == Gravity.START) {
	lp.setMarginStart(arrowMarginStart);
	}
	requestLayout();

	params.leftMargin = mActivity.getDeviceProfile().workspacePadding.left;
	params.rightMargin = mActivity.getDeviceProfile().workspacePadding.right;
	post(() -> setY(top - getHeight()));
	setAlpha(0);
	animate()
	.alpha(1f)
	.withLayer()
	.setStartDelay(SHOW_DELAY_MS)
	.setDuration(SHOW_DURATION_MS)
	.setInterpolator(Interpolators.DEACCEL)
	.start();
	return this;
	}

	/**
	* Show the ArrowTipView (tooltip) custom aligned.
	*
	* @param text The text to be shown in the tooltip.
	* @param arrowXCoord The X coordinate for the arrow on the tip. The arrow is usually in the
	* center of ArrowTipView unless the ArrowTipView goes beyond screen margin.
	* @param yCoord The Y coordinate of the bottom of the tooltip.
	* @return The tool tip view.
	*/
	@Nullable public ArrowTipView showAtLocation(String text, int arrowXCoord, int yCoord) {
	ViewGroup parent = mActivity.getDragLayer();
	@Px int parentViewWidth = parent.getWidth();
	@Px int textViewWidth = getContext().getResources()
	.getDimensionPixelSize(R.dimen.widget_picker_education_tip_width);
	@Px int minViewMargin = getContext().getResources()
	.getDimensionPixelSize(R.dimen.widget_picker_education_tip_min_margin);
	if (parentViewWidth < textViewWidth + 2 * minViewMargin) {
	Log.w(TAG, "Cannot display tip on a small screen of size: " + parentViewWidth);
	return null;
	}

	TextView textView = findViewById(R.id.text);
	textView.setText(text);
	textView.setWidth(textViewWidth);
	parent.addView(this);
	requestLayout();

	post(() -> setY(yCoord - getHeight()));
	post(() -> {
	float halfWidth = getWidth() / 2f;
	float xCoord;
	if (arrowXCoord - halfWidth < minViewMargin) {
	xCoord = minViewMargin;
	} else if (arrowXCoord + halfWidth > parentViewWidth - minViewMargin) {
	xCoord = parentViewWidth - minViewMargin - getWidth();
	} else {
	xCoord = arrowXCoord - halfWidth;
	}
	setX(xCoord);
	findViewById(R.id.arrow).setX(arrowXCoord - xCoord);
	requestLayout();
	});

	setAlpha(0);
	animate()
	.alpha(1f)
	.withLayer()
	.setStartDelay(SHOW_DELAY_MS)
	.setDuration(SHOW_DURATION_MS)
	.setInterpolator(Interpolators.DEACCEL)
	.start();
	return this;
	}

	/**
	* Register a callback fired when toast is hidden
	*/
	public ArrowTipView setOnClosedCallback(Runnable runnable) {
	mOnClosed = runnable;
	return this;
	}
	}