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

 /*
  * Copyright (C) 2011 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;

 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
 import static com.android.launcher3.util.MultiTranslateDelegate.INDEX_BUBBLE_ADJUSTMENT_ANIM;

 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewDebug;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;

 import com.android.launcher3.util.HorizontalInsettableView;
 import com.android.launcher3.util.MultiTranslateDelegate;
 import com.android.launcher3.views.ActivityContext;

 /**
  * View class that represents the bottom row of the home screen.
  */
 public class Hotseat extends CellLayout implements Insettable {

     // Ratio of empty space, qsb should take up to appear visually centered.
     public static final float QSB_CENTER_FACTOR = .325f;
     private static final int BUBBLE_BAR_ADJUSTMENT_ANIMATION_DURATION_MS = 250;

     @ViewDebug.ExportedProperty(category = "launcher")
     private boolean mHasVerticalHotseat;
     private Workspace<?> mWorkspace;
     private boolean mSendTouchToWorkspace;

     private final View mQsb;

     public Hotseat(Context context) {
         this(context, null);
     }

     public Hotseat(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }

     public Hotseat(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);

         mQsb = LayoutInflater.from(context).inflate(R.layout.search_container_hotseat, this, false);
         addView(mQsb);
     }

     /**
      * Returns orientation specific cell X given invariant order in the hotseat
      */
     public int getCellXFromOrder(int rank) {
         return mHasVerticalHotseat ? 0 : rank;
     }

     /**
      * Returns orientation specific cell Y given invariant order in the hotseat
      */
     public int getCellYFromOrder(int rank) {
         return mHasVerticalHotseat ? (getCountY() - (rank + 1)) : 0;
     }

     public void resetLayout(boolean hasVerticalHotseat) {
         ActivityContext activityContext = ActivityContext.lookupContext(getContext());
         boolean bubbleBarEnabled = activityContext.isBubbleBarEnabled();
         boolean hasBubbles = activityContext.hasBubbles();
         removeAllViewsInLayout();
         mHasVerticalHotseat = hasVerticalHotseat;
         DeviceProfile dp = mActivity.getDeviceProfile();

         if (bubbleBarEnabled) {
             float adjustedBorderSpace = dp.getHotseatAdjustedBorderSpaceForBubbleBar(getContext());
             if (hasBubbles && Float.compare(adjustedBorderSpace, 0f) != 0) {
                 getShortcutsAndWidgets().setTranslationProvider(child -> {
                     int index = getShortcutsAndWidgets().indexOfChild(child);
                     float borderSpaceDelta = adjustedBorderSpace - dp.hotseatBorderSpace;
                     return dp.iconSizePx + index * borderSpaceDelta;
                 });
                 if (mQsb instanceof HorizontalInsettableView) {
                     HorizontalInsettableView insettableQsb = (HorizontalInsettableView) mQsb;
                     final float insetFraction = (float) dp.iconSizePx / dp.hotseatQsbWidth;
                     // post this to the looper so that QSB has a chance to redraw itself, e.g.
                     // after device rotation
                     mQsb.post(() -> insettableQsb.setHorizontalInsets(insetFraction));
                 }
             } else {
                 getShortcutsAndWidgets().setTranslationProvider(null);
                 if (mQsb instanceof HorizontalInsettableView) {
                     ((HorizontalInsettableView) mQsb).setHorizontalInsets(0);
                 }
             }
         }

         resetCellSize(dp);
         if (hasVerticalHotseat) {
             setGridSize(1, dp.numShownHotseatIcons);
         } else {
             setGridSize(dp.numShownHotseatIcons, 1);
         }
     }

     /**
      * Adjust the hotseat icons for the bubble bar.
      *
      * <p>When the bubble bar becomes visible, if needed, this method animates the hotseat icons
      * to reduce the spacing between them and make room for the bubble bar. The QSB width is
      * animated as well to align with the hotseat icons.
      *
      * <p>When the bubble bar goes away, any adjustments that were previously made are reversed.
      */
     public void adjustForBubbleBar(boolean isBubbleBarVisible) {
         DeviceProfile dp = mActivity.getDeviceProfile();
         float adjustedBorderSpace = dp.getHotseatAdjustedBorderSpaceForBubbleBar(getContext());
         if (Float.compare(adjustedBorderSpace, 0f) == 0) {
             return;
         }

         ShortcutAndWidgetContainer icons = getShortcutsAndWidgets();
         AnimatorSet animatorSet = new AnimatorSet();
         float borderSpaceDelta = adjustedBorderSpace - dp.hotseatBorderSpace;

         // update the translation provider for future layout passes of hotseat icons.
         if (isBubbleBarVisible) {
             icons.setTranslationProvider(child -> {
                 int index = icons.indexOfChild(child);
                 return dp.iconSizePx + index * borderSpaceDelta;
             });
         } else {
             icons.setTranslationProvider(null);
         }

         for (int i = 0; i < icons.getChildCount(); i++) {
             View child = icons.getChildAt(i);
             float tx = isBubbleBarVisible ? dp.iconSizePx + i * borderSpaceDelta : 0;
             if (child instanceof Reorderable) {
                 MultiTranslateDelegate mtd = ((Reorderable) child).getTranslateDelegate();
                 animatorSet.play(
                         mtd.getTranslationX(INDEX_BUBBLE_ADJUSTMENT_ANIM).animateToValue(tx));
             } else {
                 animatorSet.play(ObjectAnimator.ofFloat(child, VIEW_TRANSLATE_X, tx));
             }
         }
         if (mQsb instanceof HorizontalInsettableView) {
             HorizontalInsettableView horizontalInsettableQsb = (HorizontalInsettableView) mQsb;
             ValueAnimator qsbAnimator = ValueAnimator.ofFloat(0f, 1f);
             qsbAnimator.addUpdateListener(animation -> {
                 float fraction = qsbAnimator.getAnimatedFraction();
                 float insetFraction = isBubbleBarVisible
                         ? (float) dp.iconSizePx * fraction / dp.hotseatQsbWidth
                         : (float) dp.iconSizePx * (1 - fraction) / dp.hotseatQsbWidth;
                 horizontalInsettableQsb.setHorizontalInsets(insetFraction);
             });
             animatorSet.play(qsbAnimator);
         }
         animatorSet.setDuration(BUBBLE_BAR_ADJUSTMENT_ANIMATION_DURATION_MS).start();
     }

     @Override
     public void setInsets(Rect insets) {
         FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) getLayoutParams();
         DeviceProfile grid = mActivity.getDeviceProfile();

         if (grid.isVerticalBarLayout()) {
             mQsb.setVisibility(View.GONE);
             lp.height = ViewGroup.LayoutParams.MATCH_PARENT;
             if (grid.isSeascape()) {
                 lp.gravity = Gravity.LEFT;
                 lp.width = grid.hotseatBarSizePx + insets.left;
             } else {
                 lp.gravity = Gravity.RIGHT;
                 lp.width = grid.hotseatBarSizePx + insets.right;
             }
         } else {
             mQsb.setVisibility(View.VISIBLE);
             lp.gravity = Gravity.BOTTOM;
             lp.width = ViewGroup.LayoutParams.MATCH_PARENT;
             lp.height = grid.hotseatBarSizePx;
         }

         Rect padding = grid.getHotseatLayoutPadding(getContext());
         setPadding(padding.left, padding.top, padding.right, padding.bottom);
         setLayoutParams(lp);
         InsettableFrameLayout.dispatchInsets(this, insets);
     }

     public void setWorkspace(Workspace<?> w) {
         mWorkspace = w;
         setCellLayoutContainer(w);
     }

     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
         // We allow horizontal workspace scrolling from within the Hotseat. We do this by delegating
         // touch intercept the Workspace, and if it intercepts, delegating touch to the Workspace
         // for the remainder of the this input stream.
         int yThreshold = getMeasuredHeight() - getPaddingBottom();
         if (mWorkspace != null && ev.getY() <= yThreshold) {
             mSendTouchToWorkspace = mWorkspace.onInterceptTouchEvent(ev);
             return mSendTouchToWorkspace;
         }
         return false;
     }

     @Override
     public boolean onTouchEvent(MotionEvent event) {
         // See comment in #onInterceptTouchEvent
         if (mSendTouchToWorkspace) {
             final int action = event.getAction();
             switch (action & MotionEvent.ACTION_MASK) {
                 case MotionEvent.ACTION_UP:
                 case MotionEvent.ACTION_CANCEL:
                     mSendTouchToWorkspace = false;
             }
             return mWorkspace.onTouchEvent(event);
         }
         // Always let touch follow through to Workspace.
         return false;
     }

     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);

         DeviceProfile dp = mActivity.getDeviceProfile();
         mQsb.measure(MeasureSpec.makeMeasureSpec(dp.hotseatQsbWidth, MeasureSpec.EXACTLY),
                 MeasureSpec.makeMeasureSpec(dp.hotseatQsbHeight, MeasureSpec.EXACTLY));
     }

     @Override
     protected void onLayout(boolean changed, int l, int t, int r, int b) {
         super.onLayout(changed, l, t, r, b);

         int qsbMeasuredWidth = mQsb.getMeasuredWidth();
         int left;
         DeviceProfile dp = mActivity.getDeviceProfile();
         if (dp.isQsbInline) {
             int qsbSpace = dp.hotseatBorderSpace;
             left = Utilities.isRtl(getResources()) ? r - getPaddingRight() + qsbSpace
                     : l + getPaddingLeft() - qsbMeasuredWidth - qsbSpace;
         } else {
             left = (r - l - qsbMeasuredWidth) / 2;
         }
         int right = left + qsbMeasuredWidth;

         int bottom = b - t - dp.getQsbOffsetY();
         int top = bottom - dp.hotseatQsbHeight;
         mQsb.layout(left, top, right, bottom);
     }

     /**
      * Sets the alpha value of just our ShortcutAndWidgetContainer.
      */
     public void setIconsAlpha(float alpha) {
         getShortcutsAndWidgets().setAlpha(alpha);
     }

     /**
      * Sets the alpha value of just our QSB.
      */
     public void setQsbAlpha(float alpha) {
         mQsb.setAlpha(alpha);
     }

     public float getIconsAlpha() {
         return getShortcutsAndWidgets().getAlpha();
     }

     /**
      * Returns the QSB inside hotseat
      */
     public View getQsb() {
         return mQsb;
     }

 }
	/*
	* Copyright (C) 2011 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;

	import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
	import static com.android.launcher3.util.MultiTranslateDelegate.INDEX_BUBBLE_ADJUSTMENT_ANIM;

	import android.animation.AnimatorSet;
	import android.animation.ObjectAnimator;
	import android.animation.ValueAnimator;
	import android.content.Context;
	import android.graphics.Rect;
	import android.util.AttributeSet;
	import android.view.Gravity;
	import android.view.LayoutInflater;
	import android.view.MotionEvent;
	import android.view.View;
	import android.view.ViewDebug;
	import android.view.ViewGroup;
	import android.widget.FrameLayout;

	import com.android.launcher3.util.HorizontalInsettableView;
	import com.android.launcher3.util.MultiTranslateDelegate;
	import com.android.launcher3.views.ActivityContext;

	/**
	* View class that represents the bottom row of the home screen.
	*/
	public class Hotseat extends CellLayout implements Insettable {

	// Ratio of empty space, qsb should take up to appear visually centered.
	public static final float QSB_CENTER_FACTOR = .325f;
	private static final int BUBBLE_BAR_ADJUSTMENT_ANIMATION_DURATION_MS = 250;

	@ViewDebug.ExportedProperty(category = "launcher")
	private boolean mHasVerticalHotseat;
	private Workspace<?> mWorkspace;
	private boolean mSendTouchToWorkspace;

	private final View mQsb;

	public Hotseat(Context context) {
	this(context, null);
	}

	public Hotseat(Context context, AttributeSet attrs) {
	this(context, attrs, 0);
	}

	public Hotseat(Context context, AttributeSet attrs, int defStyle) {
	super(context, attrs, defStyle);

	mQsb = LayoutInflater.from(context).inflate(R.layout.search_container_hotseat, this, false);
	addView(mQsb);
	}

	/**
	* Returns orientation specific cell X given invariant order in the hotseat
	*/
	public int getCellXFromOrder(int rank) {
	return mHasVerticalHotseat ? 0 : rank;
	}

	/**
	* Returns orientation specific cell Y given invariant order in the hotseat
	*/
	public int getCellYFromOrder(int rank) {
	return mHasVerticalHotseat ? (getCountY() - (rank + 1)) : 0;
	}

	public void resetLayout(boolean hasVerticalHotseat) {
	ActivityContext activityContext = ActivityContext.lookupContext(getContext());
	boolean bubbleBarEnabled = activityContext.isBubbleBarEnabled();
	boolean hasBubbles = activityContext.hasBubbles();
	removeAllViewsInLayout();
	mHasVerticalHotseat = hasVerticalHotseat;
	DeviceProfile dp = mActivity.getDeviceProfile();

	if (bubbleBarEnabled) {
	float adjustedBorderSpace = dp.getHotseatAdjustedBorderSpaceForBubbleBar(getContext());
	if (hasBubbles && Float.compare(adjustedBorderSpace, 0f) != 0) {
	getShortcutsAndWidgets().setTranslationProvider(child -> {
	int index = getShortcutsAndWidgets().indexOfChild(child);
	float borderSpaceDelta = adjustedBorderSpace - dp.hotseatBorderSpace;
	return dp.iconSizePx + index * borderSpaceDelta;
	});
	if (mQsb instanceof HorizontalInsettableView) {
	HorizontalInsettableView insettableQsb = (HorizontalInsettableView) mQsb;
	final float insetFraction = (float) dp.iconSizePx / dp.hotseatQsbWidth;
	// post this to the looper so that QSB has a chance to redraw itself, e.g.
	// after device rotation
	mQsb.post(() -> insettableQsb.setHorizontalInsets(insetFraction));
	}
	} else {
	getShortcutsAndWidgets().setTranslationProvider(null);
	if (mQsb instanceof HorizontalInsettableView) {
	((HorizontalInsettableView) mQsb).setHorizontalInsets(0);
	}
	}
	}

	resetCellSize(dp);
	if (hasVerticalHotseat) {
	setGridSize(1, dp.numShownHotseatIcons);
	} else {
	setGridSize(dp.numShownHotseatIcons, 1);
	}
	}

	/**
	* Adjust the hotseat icons for the bubble bar.
	*
	* <p>When the bubble bar becomes visible, if needed, this method animates the hotseat icons
	* to reduce the spacing between them and make room for the bubble bar. The QSB width is
	* animated as well to align with the hotseat icons.
	*
	* <p>When the bubble bar goes away, any adjustments that were previously made are reversed.
	*/
	public void adjustForBubbleBar(boolean isBubbleBarVisible) {
	DeviceProfile dp = mActivity.getDeviceProfile();
	float adjustedBorderSpace = dp.getHotseatAdjustedBorderSpaceForBubbleBar(getContext());
	if (Float.compare(adjustedBorderSpace, 0f) == 0) {
	return;
	}

	ShortcutAndWidgetContainer icons = getShortcutsAndWidgets();
	AnimatorSet animatorSet = new AnimatorSet();
	float borderSpaceDelta = adjustedBorderSpace - dp.hotseatBorderSpace;

	// update the translation provider for future layout passes of hotseat icons.
	if (isBubbleBarVisible) {
	icons.setTranslationProvider(child -> {
	int index = icons.indexOfChild(child);
	return dp.iconSizePx + index * borderSpaceDelta;
	});
	} else {
	icons.setTranslationProvider(null);
	}

	for (int i = 0; i < icons.getChildCount(); i++) {
	View child = icons.getChildAt(i);
	float tx = isBubbleBarVisible ? dp.iconSizePx + i * borderSpaceDelta : 0;
	if (child instanceof Reorderable) {
	MultiTranslateDelegate mtd = ((Reorderable) child).getTranslateDelegate();
	animatorSet.play(
	mtd.getTranslationX(INDEX_BUBBLE_ADJUSTMENT_ANIM).animateToValue(tx));
	} else {
	animatorSet.play(ObjectAnimator.ofFloat(child, VIEW_TRANSLATE_X, tx));
	}
	}
	if (mQsb instanceof HorizontalInsettableView) {
	HorizontalInsettableView horizontalInsettableQsb = (HorizontalInsettableView) mQsb;
	ValueAnimator qsbAnimator = ValueAnimator.ofFloat(0f, 1f);
	qsbAnimator.addUpdateListener(animation -> {
	float fraction = qsbAnimator.getAnimatedFraction();
	float insetFraction = isBubbleBarVisible
	? (float) dp.iconSizePx * fraction / dp.hotseatQsbWidth
	: (float) dp.iconSizePx * (1 - fraction) / dp.hotseatQsbWidth;
	horizontalInsettableQsb.setHorizontalInsets(insetFraction);
	});
	animatorSet.play(qsbAnimator);
	}
	animatorSet.setDuration(BUBBLE_BAR_ADJUSTMENT_ANIMATION_DURATION_MS).start();
	}

	@Override
	public void setInsets(Rect insets) {
	FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) getLayoutParams();
	DeviceProfile grid = mActivity.getDeviceProfile();

	if (grid.isVerticalBarLayout()) {
	mQsb.setVisibility(View.GONE);
	lp.height = ViewGroup.LayoutParams.MATCH_PARENT;
	if (grid.isSeascape()) {
	lp.gravity = Gravity.LEFT;
	lp.width = grid.hotseatBarSizePx + insets.left;
	} else {
	lp.gravity = Gravity.RIGHT;
	lp.width = grid.hotseatBarSizePx + insets.right;
	}
	} else {
	mQsb.setVisibility(View.VISIBLE);
	lp.gravity = Gravity.BOTTOM;
	lp.width = ViewGroup.LayoutParams.MATCH_PARENT;
	lp.height = grid.hotseatBarSizePx;
	}

	Rect padding = grid.getHotseatLayoutPadding(getContext());
	setPadding(padding.left, padding.top, padding.right, padding.bottom);
	setLayoutParams(lp);
	InsettableFrameLayout.dispatchInsets(this, insets);
	}

	public void setWorkspace(Workspace<?> w) {
	mWorkspace = w;
	setCellLayoutContainer(w);
	}

	@Override
	public boolean onInterceptTouchEvent(MotionEvent ev) {
	// We allow horizontal workspace scrolling from within the Hotseat. We do this by delegating
	// touch intercept the Workspace, and if it intercepts, delegating touch to the Workspace
	// for the remainder of the this input stream.
	int yThreshold = getMeasuredHeight() - getPaddingBottom();
	if (mWorkspace != null && ev.getY() <= yThreshold) {
	mSendTouchToWorkspace = mWorkspace.onInterceptTouchEvent(ev);
	return mSendTouchToWorkspace;
	}
	return false;
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
	// See comment in #onInterceptTouchEvent
	if (mSendTouchToWorkspace) {
	final int action = event.getAction();
	switch (action & MotionEvent.ACTION_MASK) {
	case MotionEvent.ACTION_UP:
	case MotionEvent.ACTION_CANCEL:
	mSendTouchToWorkspace = false;
	}
	return mWorkspace.onTouchEvent(event);
	}
	// Always let touch follow through to Workspace.
	return false;
	}

	@Override
	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
	super.onMeasure(widthMeasureSpec, heightMeasureSpec);

	DeviceProfile dp = mActivity.getDeviceProfile();
	mQsb.measure(MeasureSpec.makeMeasureSpec(dp.hotseatQsbWidth, MeasureSpec.EXACTLY),
	MeasureSpec.makeMeasureSpec(dp.hotseatQsbHeight, MeasureSpec.EXACTLY));
	}

	@Override
	protected void onLayout(boolean changed, int l, int t, int r, int b) {
	super.onLayout(changed, l, t, r, b);

	int qsbMeasuredWidth = mQsb.getMeasuredWidth();
	int left;
	DeviceProfile dp = mActivity.getDeviceProfile();
	if (dp.isQsbInline) {
	int qsbSpace = dp.hotseatBorderSpace;
	left = Utilities.isRtl(getResources()) ? r - getPaddingRight() + qsbSpace
	: l + getPaddingLeft() - qsbMeasuredWidth - qsbSpace;
	} else {
	left = (r - l - qsbMeasuredWidth) / 2;
	}
	int right = left + qsbMeasuredWidth;

	int bottom = b - t - dp.getQsbOffsetY();
	int top = bottom - dp.hotseatQsbHeight;
	mQsb.layout(left, top, right, bottom);
	}

	/**
	* Sets the alpha value of just our ShortcutAndWidgetContainer.
	*/
	public void setIconsAlpha(float alpha) {
	getShortcutsAndWidgets().setAlpha(alpha);
	}

	/**
	* Sets the alpha value of just our QSB.
	*/
	public void setQsbAlpha(float alpha) {
	mQsb.setAlpha(alpha);
	}

	public float getIconsAlpha() {
	return getShortcutsAndWidgets().getAlpha();
	}

	/**
	* Returns the QSB inside hotseat
	*/
	public View getQsb() {
	return mQsb;
	}

	}