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

 /*
  * Copyright (C) 2017 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.widget;

 import static com.android.app.animation.Interpolators.EMPHASIZED;
 import static com.android.launcher3.Flags.enableCategorizedWidgetSuggestions;
 import static com.android.launcher3.Flags.enableUnfoldedTwoPanePicker;
 import static com.android.launcher3.LauncherPrefs.WIDGETS_EDUCATION_TIP_SEEN;

 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnLongClickListener;
 import android.view.WindowInsets;
 import android.view.animation.Interpolator;

 import androidx.annotation.Nullable;
 import androidx.annotation.Px;
 import androidx.core.view.ViewCompat;

 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
 import com.android.launcher3.Insettable;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.popup.PopupDataProvider;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.util.SystemUiController;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.window.WindowManagerProxy;
 import com.android.launcher3.views.AbstractSlideInView;
 import com.android.launcher3.views.ArrowTipView;

 /**
  * Base class for various widgets popup
  */
 public abstract class BaseWidgetSheet extends AbstractSlideInView<BaseActivity>
         implements OnClickListener, OnLongClickListener,
         PopupDataProvider.PopupDataChangeListener, Insettable, OnDeviceProfileChangeListener {
     /** The default number of cells that can fit horizontally in a widget sheet. */
     public static final int DEFAULT_MAX_HORIZONTAL_SPANS = 4;

     protected final Rect mInsets = new Rect();

     @Px
     protected int mContentHorizontalMargin;
     @Px
     protected int mWidgetCellHorizontalPadding;

     protected int mNavBarScrimHeight;
     private final Paint mNavBarScrimPaint;

     private boolean mDisableNavBarScrim = false;

     public BaseWidgetSheet(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         mContentHorizontalMargin = getWidgetListHorizontalMargin();
         mWidgetCellHorizontalPadding = getResources().getDimensionPixelSize(
                 R.dimen.widget_cell_horizontal_padding);
         mNavBarScrimPaint = new Paint();
         mNavBarScrimPaint.setColor(Themes.getNavBarScrimColor(mActivityContext));
     }

     /**
      * Returns the margins to be applied to the left and right of the widget apps list.
      */
     protected int getWidgetListHorizontalMargin() {
         return getResources().getDimensionPixelSize(
                 R.dimen.widget_list_horizontal_margin);
     }

     protected int getScrimColor(Context context) {
         return context.getResources().getColor(R.color.widgets_picker_scrim);
     }

     @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         WindowInsets windowInsets = WindowManagerProxy.INSTANCE.get(getContext())
                 .normalizeWindowInsets(getContext(), getRootWindowInsets(), new Rect());
         mNavBarScrimHeight = getNavBarScrimHeight(windowInsets);
         mActivityContext.getPopupDataProvider().setChangeListener(this);
         mActivityContext.addOnDeviceProfileChangeListener(this);
     }

     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
         mActivityContext.getPopupDataProvider().setChangeListener(null);
         mActivityContext.removeOnDeviceProfileChangeListener(this);
     }

     @Override
     public void onDeviceProfileChanged(DeviceProfile dp) {
         int navBarScrimColor = Themes.getNavBarScrimColor(mActivityContext);
         if (mNavBarScrimPaint.getColor() != navBarScrimColor) {
             mNavBarScrimPaint.setColor(navBarScrimColor);
             invalidate();
         }
         setupNavBarColor();
     }

     @Override
     public final void onClick(View v) {
         if (v instanceof WidgetCell) {
             mActivityContext.getItemOnClickListener().onClick(v);
         } else if (v.getParent() instanceof WidgetCell wc) {
             mActivityContext.getItemOnClickListener().onClick(wc);
         }
     }

     @Override
     public boolean onLongClick(View v) {
         TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "Widgets.onLongClick");
         v.cancelLongPress();

         boolean result;
         if (v instanceof WidgetCell) {
             result = mActivityContext.getAllAppsItemLongClickListener().onLongClick(v);
         } else if (v.getParent() instanceof WidgetCell wc) {
             result = mActivityContext.getAllAppsItemLongClickListener().onLongClick(wc);
         } else {
             return true;
         }
         if (result) {
             close(true);
         }
         return result;
     }

     @Override
     public void setInsets(Rect insets) {
         mInsets.set(insets);
         @Px int contentHorizontalMargin = getWidgetListHorizontalMargin();
         if (contentHorizontalMargin != mContentHorizontalMargin) {
             onContentHorizontalMarginChanged(contentHorizontalMargin);
             mContentHorizontalMargin = contentHorizontalMargin;
         }
     }

     /** Enables or disables the sheet's nav bar scrim. */
     public void disableNavBarScrim(boolean disable) {
         mDisableNavBarScrim = disable;
     }

     private int getNavBarScrimHeight(WindowInsets insets) {
         if (mDisableNavBarScrim) {
             return 0;
         } else {
             return insets.getTappableElementInsets().bottom;
         }
     }

     @Override
     public WindowInsets onApplyWindowInsets(WindowInsets insets) {
         mNavBarScrimHeight = getNavBarScrimHeight(insets);
         return super.onApplyWindowInsets(insets);
     }

     @Override
     protected void dispatchDraw(Canvas canvas) {
         super.dispatchDraw(canvas);

         if (mNavBarScrimHeight > 0) {
             canvas.drawRect(0, getHeight() - mNavBarScrimHeight, getWidth(), getHeight(),
                     mNavBarScrimPaint);
         }
     }

     /** Called when the horizontal margin of the content view has changed. */
     protected abstract void onContentHorizontalMarginChanged(int contentHorizontalMarginInPx);

     /**
      * Measures the dimension of this view and its children by taking system insets, navigation bar,
      * status bar, into account.
      */
     protected void doMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         DeviceProfile deviceProfile = mActivityContext.getDeviceProfile();
         int widthUsed;
         if (deviceProfile.isTablet) {
             widthUsed = Math.max(2 * getTabletHorizontalMargin(deviceProfile),
                     2 * (mInsets.left + mInsets.right));
         } else if (mInsets.bottom > 0) {
             widthUsed = mInsets.left + mInsets.right;
         } else {
             Rect padding = deviceProfile.workspacePadding;
             widthUsed = Math.max(padding.left + padding.right,
                     2 * (mInsets.left + mInsets.right));
         }

         measureChildWithMargins(mContent, widthMeasureSpec,
                 widthUsed, heightMeasureSpec, deviceProfile.bottomSheetTopPadding);
         setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec),
                 MeasureSpec.getSize(heightMeasureSpec));
     }

     private int getTabletHorizontalMargin(DeviceProfile deviceProfile) {
         // All bottom-sheets showing widgets will be full-width across all devices.
         if (enableCategorizedWidgetSuggestions()) {
             return 0;
         }
         if (deviceProfile.isLandscape && !deviceProfile.isTwoPanels) {
             return getResources().getDimensionPixelSize(
                     R.dimen.widget_picker_landscape_tablet_left_right_margin);
         }
         if (deviceProfile.isTwoPanels && enableUnfoldedTwoPanePicker()) {
             return getResources().getDimensionPixelSize(
                     R.dimen.widget_picker_two_panels_left_right_margin);
         }
         return deviceProfile.allAppsLeftRightMargin;
     }

     @Override
     protected Interpolator getIdleInterpolator() {
         return mActivityContext.getDeviceProfile().isTablet
                 ? EMPHASIZED : super.getIdleInterpolator();
     }

     protected void onCloseComplete() {
         super.onCloseComplete();
         clearNavBarColor();
     }

     protected void clearNavBarColor() {
         getSystemUiController().updateUiState(
                 SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET, 0);
     }

     protected void setupNavBarColor() {
         boolean isNavBarDark = Themes.getAttrBoolean(getContext(), R.attr.isMainColorDark);

         // In light mode, landscape reverses navbar background color.
         boolean isPhoneLandscape =
                 !mActivityContext.getDeviceProfile().isTablet && mInsets.bottom == 0;
         if (!isNavBarDark && isPhoneLandscape) {
             isNavBarDark = true;
         }

         getSystemUiController().updateUiState(SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET,
                 isNavBarDark ? SystemUiController.FLAG_DARK_NAV
                         : SystemUiController.FLAG_LIGHT_NAV);
     }

     protected SystemUiController getSystemUiController() {
         return mActivityContext.getSystemUiController();
     }

     /** Shows education tip on top center of {@code view} if view is laid out. */
     @Nullable
     protected ArrowTipView showEducationTipOnViewIfPossible(@Nullable View view) {
         if (view == null || !ViewCompat.isLaidOut(view)) {
             return null;
         }
         int[] coords = new int[2];
         view.getLocationOnScreen(coords);
         ArrowTipView arrowTipView =
                 new ArrowTipView(mActivityContext,  /* isPointingUp= */ false).showAtLocation(
                         getContext().getString(R.string.long_press_widget_to_add),
                         /* arrowXCoord= */coords[0] + view.getWidth() / 2,
                         /* yCoord= */coords[1]);
         if (arrowTipView != null) {
             LauncherPrefs.get(getContext()).put(WIDGETS_EDUCATION_TIP_SEEN, true);
         }
         return arrowTipView;
     }

     /** Returns {@code true} if tip has previously been shown on any of {@link BaseWidgetSheet}. */
     protected boolean hasSeenEducationTip() {
         return LauncherPrefs.get(getContext()).get(WIDGETS_EDUCATION_TIP_SEEN)
                 || Utilities.isRunningInTestHarness();
     }

     @Override
     protected void setTranslationShift(float translationShift) {
         super.setTranslationShift(translationShift);
         if (mActivityContext instanceof Launcher ls) {
             ls.onWidgetsTransition(1 - translationShift);
         }
     }
 }
	/*
	* Copyright (C) 2017 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.widget;

	import static com.android.app.animation.Interpolators.EMPHASIZED;
	import static com.android.launcher3.Flags.enableCategorizedWidgetSuggestions;
	import static com.android.launcher3.Flags.enableUnfoldedTwoPanePicker;
	import static com.android.launcher3.LauncherPrefs.WIDGETS_EDUCATION_TIP_SEEN;

	import android.content.Context;
	import android.graphics.Canvas;
	import android.graphics.Paint;
	import android.graphics.Rect;
	import android.util.AttributeSet;
	import android.view.View;
	import android.view.View.OnClickListener;
	import android.view.View.OnLongClickListener;
	import android.view.WindowInsets;
	import android.view.animation.Interpolator;

	import androidx.annotation.Nullable;
	import androidx.annotation.Px;
	import androidx.core.view.ViewCompat;

	import com.android.launcher3.BaseActivity;
	import com.android.launcher3.DeviceProfile;
	import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
	import com.android.launcher3.Insettable;
	import com.android.launcher3.Launcher;
	import com.android.launcher3.LauncherPrefs;
	import com.android.launcher3.R;
	import com.android.launcher3.Utilities;
	import com.android.launcher3.popup.PopupDataProvider;
	import com.android.launcher3.testing.TestLogging;
	import com.android.launcher3.testing.shared.TestProtocol;
	import com.android.launcher3.util.SystemUiController;
	import com.android.launcher3.util.Themes;
	import com.android.launcher3.util.window.WindowManagerProxy;
	import com.android.launcher3.views.AbstractSlideInView;
	import com.android.launcher3.views.ArrowTipView;

	/**
	* Base class for various widgets popup
	*/
	public abstract class BaseWidgetSheet extends AbstractSlideInView<BaseActivity>
	implements OnClickListener, OnLongClickListener,
	PopupDataProvider.PopupDataChangeListener, Insettable, OnDeviceProfileChangeListener {
	/** The default number of cells that can fit horizontally in a widget sheet. */
	public static final int DEFAULT_MAX_HORIZONTAL_SPANS = 4;

	protected final Rect mInsets = new Rect();

	@Px
	protected int mContentHorizontalMargin;
	@Px
	protected int mWidgetCellHorizontalPadding;

	protected int mNavBarScrimHeight;
	private final Paint mNavBarScrimPaint;

	private boolean mDisableNavBarScrim = false;

	public BaseWidgetSheet(Context context, AttributeSet attrs, int defStyleAttr) {
	super(context, attrs, defStyleAttr);
	mContentHorizontalMargin = getWidgetListHorizontalMargin();
	mWidgetCellHorizontalPadding = getResources().getDimensionPixelSize(
	R.dimen.widget_cell_horizontal_padding);
	mNavBarScrimPaint = new Paint();
	mNavBarScrimPaint.setColor(Themes.getNavBarScrimColor(mActivityContext));
	}

	/**
	* Returns the margins to be applied to the left and right of the widget apps list.
	*/
	protected int getWidgetListHorizontalMargin() {
	return getResources().getDimensionPixelSize(
	R.dimen.widget_list_horizontal_margin);
	}

	protected int getScrimColor(Context context) {
	return context.getResources().getColor(R.color.widgets_picker_scrim);
	}

	@Override
	protected void onAttachedToWindow() {
	super.onAttachedToWindow();
	WindowInsets windowInsets = WindowManagerProxy.INSTANCE.get(getContext())
	.normalizeWindowInsets(getContext(), getRootWindowInsets(), new Rect());
	mNavBarScrimHeight = getNavBarScrimHeight(windowInsets);
	mActivityContext.getPopupDataProvider().setChangeListener(this);
	mActivityContext.addOnDeviceProfileChangeListener(this);
	}

	@Override
	protected void onDetachedFromWindow() {
	super.onDetachedFromWindow();
	mActivityContext.getPopupDataProvider().setChangeListener(null);
	mActivityContext.removeOnDeviceProfileChangeListener(this);
	}

	@Override
	public void onDeviceProfileChanged(DeviceProfile dp) {
	int navBarScrimColor = Themes.getNavBarScrimColor(mActivityContext);
	if (mNavBarScrimPaint.getColor() != navBarScrimColor) {
	mNavBarScrimPaint.setColor(navBarScrimColor);
	invalidate();
	}
	setupNavBarColor();
	}

	@Override
	public final void onClick(View v) {
	if (v instanceof WidgetCell) {
	mActivityContext.getItemOnClickListener().onClick(v);
	} else if (v.getParent() instanceof WidgetCell wc) {
	mActivityContext.getItemOnClickListener().onClick(wc);
	}
	}

	@Override
	public boolean onLongClick(View v) {
	TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "Widgets.onLongClick");
	v.cancelLongPress();

	boolean result;
	if (v instanceof WidgetCell) {
	result = mActivityContext.getAllAppsItemLongClickListener().onLongClick(v);
	} else if (v.getParent() instanceof WidgetCell wc) {
	result = mActivityContext.getAllAppsItemLongClickListener().onLongClick(wc);
	} else {
	return true;
	}
	if (result) {
	close(true);
	}
	return result;
	}

	@Override
	public void setInsets(Rect insets) {
	mInsets.set(insets);
	@Px int contentHorizontalMargin = getWidgetListHorizontalMargin();
	if (contentHorizontalMargin != mContentHorizontalMargin) {
	onContentHorizontalMarginChanged(contentHorizontalMargin);
	mContentHorizontalMargin = contentHorizontalMargin;
	}
	}

	/** Enables or disables the sheet's nav bar scrim. */
	public void disableNavBarScrim(boolean disable) {
	mDisableNavBarScrim = disable;
	}

	private int getNavBarScrimHeight(WindowInsets insets) {
	if (mDisableNavBarScrim) {
	return 0;
	} else {
	return insets.getTappableElementInsets().bottom;
	}
	}

	@Override
	public WindowInsets onApplyWindowInsets(WindowInsets insets) {
	mNavBarScrimHeight = getNavBarScrimHeight(insets);
	return super.onApplyWindowInsets(insets);
	}

	@Override
	protected void dispatchDraw(Canvas canvas) {
	super.dispatchDraw(canvas);

	if (mNavBarScrimHeight > 0) {
	canvas.drawRect(0, getHeight() - mNavBarScrimHeight, getWidth(), getHeight(),
	mNavBarScrimPaint);
	}
	}

	/** Called when the horizontal margin of the content view has changed. */
	protected abstract void onContentHorizontalMarginChanged(int contentHorizontalMarginInPx);

	/**
	* Measures the dimension of this view and its children by taking system insets, navigation bar,
	* status bar, into account.
	*/
	protected void doMeasure(int widthMeasureSpec, int heightMeasureSpec) {
	DeviceProfile deviceProfile = mActivityContext.getDeviceProfile();
	int widthUsed;
	if (deviceProfile.isTablet) {
	widthUsed = Math.max(2 * getTabletHorizontalMargin(deviceProfile),
	2 * (mInsets.left + mInsets.right));
	} else if (mInsets.bottom > 0) {
	widthUsed = mInsets.left + mInsets.right;
	} else {
	Rect padding = deviceProfile.workspacePadding;
	widthUsed = Math.max(padding.left + padding.right,
	2 * (mInsets.left + mInsets.right));
	}

	measureChildWithMargins(mContent, widthMeasureSpec,
	widthUsed, heightMeasureSpec, deviceProfile.bottomSheetTopPadding);
	setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec),
	MeasureSpec.getSize(heightMeasureSpec));
	}

	private int getTabletHorizontalMargin(DeviceProfile deviceProfile) {
	// All bottom-sheets showing widgets will be full-width across all devices.
	if (enableCategorizedWidgetSuggestions()) {
	return 0;
	}
	if (deviceProfile.isLandscape && !deviceProfile.isTwoPanels) {
	return getResources().getDimensionPixelSize(
	R.dimen.widget_picker_landscape_tablet_left_right_margin);
	}
	if (deviceProfile.isTwoPanels && enableUnfoldedTwoPanePicker()) {
	return getResources().getDimensionPixelSize(
	R.dimen.widget_picker_two_panels_left_right_margin);
	}
	return deviceProfile.allAppsLeftRightMargin;
	}

	@Override
	protected Interpolator getIdleInterpolator() {
	return mActivityContext.getDeviceProfile().isTablet
	? EMPHASIZED : super.getIdleInterpolator();
	}

	protected void onCloseComplete() {
	super.onCloseComplete();
	clearNavBarColor();
	}

	protected void clearNavBarColor() {
	getSystemUiController().updateUiState(
	SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET, 0);
	}

	protected void setupNavBarColor() {
	boolean isNavBarDark = Themes.getAttrBoolean(getContext(), R.attr.isMainColorDark);

	// In light mode, landscape reverses navbar background color.
	boolean isPhoneLandscape =
	!mActivityContext.getDeviceProfile().isTablet && mInsets.bottom == 0;
	if (!isNavBarDark && isPhoneLandscape) {
	isNavBarDark = true;
	}

	getSystemUiController().updateUiState(SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET,
	isNavBarDark ? SystemUiController.FLAG_DARK_NAV
	: SystemUiController.FLAG_LIGHT_NAV);
	}

	protected SystemUiController getSystemUiController() {
	return mActivityContext.getSystemUiController();
	}

	/** Shows education tip on top center of {@code view} if view is laid out. */
	@Nullable
	protected ArrowTipView showEducationTipOnViewIfPossible(@Nullable View view) {
	if (view == null \|\| !ViewCompat.isLaidOut(view)) {
	return null;
	}
	int[] coords = new int[2];
	view.getLocationOnScreen(coords);
	ArrowTipView arrowTipView =
	new ArrowTipView(mActivityContext, /* isPointingUp= */ false).showAtLocation(
	getContext().getString(R.string.long_press_widget_to_add),
	/* arrowXCoord= */coords[0] + view.getWidth() / 2,
	/* yCoord= */coords[1]);
	if (arrowTipView != null) {
	LauncherPrefs.get(getContext()).put(WIDGETS_EDUCATION_TIP_SEEN, true);
	}
	return arrowTipView;
	}

	/** Returns {@code true} if tip has previously been shown on any of {@link BaseWidgetSheet}. */
	protected boolean hasSeenEducationTip() {
	return LauncherPrefs.get(getContext()).get(WIDGETS_EDUCATION_TIP_SEEN)
	\|\| Utilities.isRunningInTestHarness();
	}

	@Override
	protected void setTranslationShift(float translationShift) {
	super.setTranslationShift(translationShift);
	if (mActivityContext instanceof Launcher ls) {
	ls.onWidgetsTransition(1 - translationShift);
	}
	}
	}