| /* |
| * Copyright (C) 2020 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 static com.android.launcher3.Utilities.boundToRange; |
| import static com.android.launcher3.Utilities.mapToRange; |
| import static com.android.launcher3.anim.Interpolators.LINEAR; |
| import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION; |
| |
| import static java.lang.Math.max; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ValueAnimator; |
| import android.annotation.TargetApi; |
| import android.content.Context; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Outline; |
| import android.graphics.Path; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.drawable.AdaptiveIconDrawable; |
| import android.graphics.drawable.ColorDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.os.Build; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.ViewGroup.MarginLayoutParams; |
| import android.view.ViewOutlineProvider; |
| |
| import androidx.annotation.Nullable; |
| |
| import com.android.launcher3.DeviceProfile; |
| import com.android.launcher3.R; |
| import com.android.launcher3.Utilities; |
| import com.android.launcher3.dragndrop.FolderAdaptiveIcon; |
| import com.android.launcher3.graphics.IconShape; |
| |
| /** |
| * A view used to draw both layers of an {@link AdaptiveIconDrawable}. |
| * Supports springing just the foreground layer. |
| * Supports clipping the icon to/from its icon shape. |
| */ |
| @TargetApi(Build.VERSION_CODES.Q) |
| public class ClipIconView extends View implements ClipPathView { |
| |
| private static final Rect sTmpRect = new Rect(); |
| |
| private final int mBlurSizeOutline; |
| private final boolean mIsRtl; |
| |
| private @Nullable Drawable mForeground; |
| private @Nullable Drawable mBackground; |
| |
| private boolean mIsAdaptiveIcon = false; |
| |
| private ValueAnimator mRevealAnimator; |
| |
| private final Rect mStartRevealRect = new Rect(); |
| private final Rect mEndRevealRect = new Rect(); |
| private Path mClipPath; |
| private float mTaskCornerRadius; |
| |
| private final Rect mOutline = new Rect(); |
| private final Rect mFinalDrawableBounds = new Rect(); |
| |
| public ClipIconView(Context context) { |
| this(context, null); |
| } |
| |
| public ClipIconView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public ClipIconView(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| mBlurSizeOutline = getResources().getDimensionPixelSize( |
| R.dimen.blur_size_medium_outline); |
| mIsRtl = Utilities.isRtl(getResources()); |
| } |
| |
| /** |
| * Update the icon UI to match the provided parameters during an animation frame |
| */ |
| public void update(RectF rect, float progress, float shapeProgressStart, float cornerRadius, |
| boolean isOpening, View container, DeviceProfile dp) { |
| MarginLayoutParams lp = (MarginLayoutParams) container.getLayoutParams(); |
| |
| float dX = mIsRtl |
| ? rect.left - (dp.widthPx - lp.getMarginStart() - lp.width) |
| : rect.left - lp.getMarginStart(); |
| float dY = rect.top - lp.topMargin; |
| container.setTranslationX(dX); |
| container.setTranslationY(dY); |
| |
| float minSize = Math.min(lp.width, lp.height); |
| float scaleX = rect.width() / minSize; |
| float scaleY = rect.height() / minSize; |
| float scale = Math.max(1f, Math.min(scaleX, scaleY)); |
| |
| if (Float.isNaN(scale)) { |
| // Views are no longer laid out, do not update. |
| return; |
| } |
| |
| update(rect, progress, shapeProgressStart, cornerRadius, isOpening, scale, minSize, dp); |
| |
| container.setPivotX(0); |
| container.setPivotY(0); |
| container.setScaleX(scale); |
| container.setScaleY(scale); |
| |
| container.invalidate(); |
| } |
| |
| private void update(RectF rect, float progress, float shapeProgressStart, float cornerRadius, |
| boolean isOpening, float scale, float minSize, DeviceProfile dp) { |
| // shapeRevealProgress = 1 when progress = shapeProgressStart + SHAPE_PROGRESS_DURATION |
| float toMax = isOpening ? 1 / SHAPE_PROGRESS_DURATION : 1f; |
| |
| float shapeRevealProgress = boundToRange(mapToRange(max(shapeProgressStart, progress), |
| shapeProgressStart, 1f, 0, toMax, LINEAR), 0, 1); |
| |
| if (dp.isLandscape) { |
| mOutline.right = (int) (rect.width() / scale); |
| } else { |
| mOutline.bottom = (int) (rect.height() / scale); |
| } |
| |
| mTaskCornerRadius = cornerRadius / scale; |
| if (mIsAdaptiveIcon) { |
| if (!isOpening && progress >= shapeProgressStart) { |
| if (mRevealAnimator == null) { |
| mRevealAnimator = (ValueAnimator) IconShape.getShape().createRevealAnimator( |
| this, mStartRevealRect, mOutline, mTaskCornerRadius, !isOpening); |
| mRevealAnimator.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mRevealAnimator = null; |
| } |
| }); |
| mRevealAnimator.start(); |
| // We pause here so we can set the current fraction ourselves. |
| mRevealAnimator.pause(); |
| } |
| mRevealAnimator.setCurrentFraction(shapeRevealProgress); |
| } |
| |
| float drawableScale = (dp.isLandscape ? mOutline.width() : mOutline.height()) |
| / minSize; |
| setBackgroundDrawableBounds(drawableScale, dp.isLandscape); |
| |
| // Center align foreground |
| int height = mFinalDrawableBounds.height(); |
| int width = mFinalDrawableBounds.width(); |
| int diffY = dp.isLandscape ? 0 |
| : (int) (((height * drawableScale) - height) / 2); |
| int diffX = dp.isLandscape ? (int) (((width * drawableScale) - width) / 2) |
| : 0; |
| sTmpRect.set(mFinalDrawableBounds); |
| sTmpRect.offset(diffX, diffY); |
| mForeground.setBounds(sTmpRect); |
| } |
| invalidate(); |
| invalidateOutline(); |
| } |
| |
| private void setBackgroundDrawableBounds(float scale, boolean isLandscape) { |
| sTmpRect.set(mFinalDrawableBounds); |
| Utilities.scaleRectAboutCenter(sTmpRect, scale); |
| // Since the drawable is at the top of the view, we need to offset to keep it centered. |
| if (isLandscape) { |
| sTmpRect.offsetTo((int) (mFinalDrawableBounds.left * scale), sTmpRect.top); |
| } else { |
| sTmpRect.offsetTo(sTmpRect.left, (int) (mFinalDrawableBounds.top * scale)); |
| } |
| mBackground.setBounds(sTmpRect); |
| } |
| |
| protected void endReveal() { |
| if (mRevealAnimator != null) { |
| mRevealAnimator.end(); |
| } |
| } |
| |
| /** |
| * Sets the icon for this view as part of initial setup |
| */ |
| public void setIcon(@Nullable Drawable drawable, int iconOffset, MarginLayoutParams lp, |
| boolean isOpening, DeviceProfile dp) { |
| mIsAdaptiveIcon = drawable instanceof AdaptiveIconDrawable; |
| if (mIsAdaptiveIcon) { |
| boolean isFolderIcon = drawable instanceof FolderAdaptiveIcon; |
| |
| AdaptiveIconDrawable adaptiveIcon = (AdaptiveIconDrawable) drawable; |
| Drawable background = adaptiveIcon.getBackground(); |
| if (background == null) { |
| background = new ColorDrawable(Color.TRANSPARENT); |
| } |
| mBackground = background; |
| Drawable foreground = adaptiveIcon.getForeground(); |
| if (foreground == null) { |
| foreground = new ColorDrawable(Color.TRANSPARENT); |
| } |
| mForeground = foreground; |
| |
| final int originalHeight = lp.height; |
| final int originalWidth = lp.width; |
| |
| int blurMargin = mBlurSizeOutline / 2; |
| mFinalDrawableBounds.set(0, 0, originalWidth, originalHeight); |
| |
| if (!isFolderIcon) { |
| mFinalDrawableBounds.inset(iconOffset - blurMargin, iconOffset - blurMargin); |
| } |
| mForeground.setBounds(mFinalDrawableBounds); |
| mBackground.setBounds(mFinalDrawableBounds); |
| |
| mStartRevealRect.set(0, 0, originalWidth, originalHeight); |
| |
| if (!isFolderIcon) { |
| Utilities.scaleRectAboutCenter(mStartRevealRect, IconShape.getNormalizationScale()); |
| } |
| |
| if (dp.isLandscape) { |
| lp.width = (int) Math.max(lp.width, lp.height * dp.aspectRatio); |
| } else { |
| lp.height = (int) Math.max(lp.height, lp.width * dp.aspectRatio); |
| } |
| |
| int left = mIsRtl |
| ? dp.widthPx - lp.getMarginStart() - lp.width |
| : lp.leftMargin; |
| layout(left, lp.topMargin, left + lp.width, lp.topMargin + lp.height); |
| |
| float scale = Math.max((float) lp.height / originalHeight, |
| (float) lp.width / originalWidth); |
| float bgDrawableStartScale; |
| if (isOpening) { |
| bgDrawableStartScale = 1f; |
| mOutline.set(0, 0, originalWidth, originalHeight); |
| } else { |
| bgDrawableStartScale = scale; |
| mOutline.set(0, 0, lp.width, lp.height); |
| } |
| setBackgroundDrawableBounds(bgDrawableStartScale, dp.isLandscape); |
| mEndRevealRect.set(0, 0, lp.width, lp.height); |
| setOutlineProvider(new ViewOutlineProvider() { |
| @Override |
| public void getOutline(View view, Outline outline) { |
| outline.setRoundRect(mOutline, mTaskCornerRadius); |
| } |
| }); |
| setClipToOutline(true); |
| } else { |
| setBackground(drawable); |
| setClipToOutline(false); |
| } |
| |
| invalidate(); |
| invalidateOutline(); |
| } |
| |
| @Override |
| public void setClipPath(Path clipPath) { |
| mClipPath = clipPath; |
| invalidate(); |
| } |
| |
| @Override |
| public void draw(Canvas canvas) { |
| int count = canvas.save(); |
| if (mClipPath != null) { |
| canvas.clipPath(mClipPath); |
| } |
| super.draw(canvas); |
| if (mBackground != null) { |
| mBackground.draw(canvas); |
| } |
| if (mForeground != null) { |
| mForeground.draw(canvas); |
| } |
| canvas.restoreToCount(count); |
| } |
| |
| void recycle() { |
| setBackground(null); |
| mIsAdaptiveIcon = false; |
| mForeground = null; |
| mBackground = null; |
| mClipPath = null; |
| mFinalDrawableBounds.setEmpty(); |
| if (mRevealAnimator != null) { |
| mRevealAnimator.cancel(); |
| } |
| mRevealAnimator = null; |
| mTaskCornerRadius = 0; |
| mOutline.setEmpty(); |
| } |
| } |