mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-03-03 09:26:51 +00:00
Converting widget panel into a floating view
> The widget panel is only inflated when needed > Using the swipe up/down interaction for widgets tray > Removing additional view wrappers from all-apps > Widget tray is preserved across activity recreation > Launcher no longer has WIDGET state, the actual code around the states will be removed in a follow-up cl Bug: 67678570 Bug: 67585158 Change-Id: Ia29a7c33ec81e6c53cc24e2906b7022b6f41755b
This commit is contained in:
Sunny Goyal
288
src/com/android/launcher3/widget/BaseWidgetSheet.java
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288
src/com/android/launcher3/widget/BaseWidgetSheet.java
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/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.widget;
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import android.animation.Animator;
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import android.animation.AnimatorListenerAdapter;
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import android.animation.ObjectAnimator;
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import android.animation.PropertyValuesHolder;
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import android.content.Context;
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import android.graphics.Point;
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import android.util.AttributeSet;
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import android.util.Property;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.view.View.OnLongClickListener;
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import android.view.animation.AccelerateInterpolator;
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import android.view.animation.DecelerateInterpolator;
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import android.widget.Toast;
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import com.android.launcher3.AbstractFloatingView;
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import com.android.launcher3.DeleteDropTarget;
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import com.android.launcher3.DragSource;
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import com.android.launcher3.DropTarget.DragObject;
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import com.android.launcher3.ItemInfo;
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import com.android.launcher3.Launcher;
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import com.android.launcher3.LauncherAnimUtils;
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import com.android.launcher3.R;
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import com.android.launcher3.Utilities;
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import com.android.launcher3.dragndrop.DragOptions;
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import com.android.launcher3.folder.Folder;
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import com.android.launcher3.graphics.GradientView;
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import com.android.launcher3.touch.SwipeDetector;
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import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
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import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
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import com.android.launcher3.util.SystemUiController;
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import com.android.launcher3.util.Themes;
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/**
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* Base class for various widgets popup
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*/
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abstract class BaseWidgetSheet extends AbstractFloatingView
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implements OnClickListener, OnLongClickListener, DragSource, SwipeDetector.Listener {
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protected static Property<BaseWidgetSheet, Float> TRANSLATION_SHIFT =
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new Property<BaseWidgetSheet, Float>(Float.class, "translationShift") {
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@Override
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public Float get(BaseWidgetSheet view) {
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return view.mTranslationShift;
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}
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@Override
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public void set(BaseWidgetSheet view, Float value) {
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view.setTranslationShift(value);
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}
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};
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protected static final float TRANSLATION_SHIFT_CLOSED = 1f;
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protected static final float TRANSLATION_SHIFT_OPENED = 0f;
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/* Touch handling related member variables. */
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private Toast mWidgetInstructionToast;
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protected final Launcher mLauncher;
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protected final SwipeDetector.ScrollInterpolator mScrollInterpolator;
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protected final SwipeDetector mSwipeDetector;
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protected final ObjectAnimator mOpenCloseAnimator;
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protected View mContent;
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protected GradientView mGradientView;
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// range [0, 1], 0=> completely open, 1=> completely closed
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protected float mTranslationShift = TRANSLATION_SHIFT_CLOSED;
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protected boolean mNoIntercept;
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public BaseWidgetSheet(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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mLauncher = Launcher.getLauncher(context);
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mScrollInterpolator = new SwipeDetector.ScrollInterpolator();
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mSwipeDetector = new SwipeDetector(context, this, SwipeDetector.VERTICAL);
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mOpenCloseAnimator = LauncherAnimUtils.ofPropertyValuesHolder(this);
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mOpenCloseAnimator.addListener(new AnimatorListenerAdapter() {
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@Override
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public void onAnimationEnd(Animator animation) {
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mSwipeDetector.finishedScrolling();
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}
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});
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}
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@Override
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public final void onClick(View v) {
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// Let the user know that they have to long press to add a widget
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if (mWidgetInstructionToast != null) {
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mWidgetInstructionToast.cancel();
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}
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CharSequence msg = Utilities.wrapForTts(
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getContext().getText(R.string.long_press_widget_to_add),
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getContext().getString(R.string.long_accessible_way_to_add));
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mWidgetInstructionToast = Toast.makeText(getContext(), msg, Toast.LENGTH_SHORT);
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mWidgetInstructionToast.show();
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}
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@Override
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public final boolean onLongClick(View v) {
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if (!mLauncher.isDraggingEnabled()) return false;
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if (v instanceof WidgetCell) {
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return beginDraggingWidget((WidgetCell) v);
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}
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return true;
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}
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protected void setTranslationShift(float translationShift) {
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mTranslationShift = translationShift;
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mGradientView.setAlpha(1 - mTranslationShift);
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mContent.setTranslationY(mTranslationShift * mContent.getHeight());
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}
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private boolean beginDraggingWidget(WidgetCell v) {
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// Get the widget preview as the drag representation
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WidgetImageView image = v.getWidgetView();
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// If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and
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// we abort the drag.
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if (image.getBitmap() == null) {
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return false;
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}
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int[] loc = new int[2];
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mLauncher.getDragLayer().getLocationInDragLayer(image, loc);
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new PendingItemDragHelper(v).startDrag(
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image.getBitmapBounds(), image.getBitmap().getWidth(), image.getWidth(),
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new Point(loc[0], loc[1]), this, new DragOptions());
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close(true);
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return true;
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}
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//
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// Drag related handling methods that implement {@link DragSource} interface.
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//
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@Override
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public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete,
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boolean success) {
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if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() &&
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!(target instanceof DeleteDropTarget) && !(target instanceof Folder))) {
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// Exit spring loaded mode if we have not successfully dropped or have not handled the
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// drop in Workspace
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mLauncher.exitSpringLoadedDragModeDelayed(true,
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Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null);
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}
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mLauncher.unlockScreenOrientation(false);
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if (!success) {
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d.deferDragViewCleanupPostAnimation = false;
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}
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}
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@Override
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public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
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if (ev.getAction() == MotionEvent.ACTION_UP && !mNoIntercept) {
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// If we got ACTION_UP without ever returning true on intercept,
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// the user never started dragging the bottom sheet.
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if (!mLauncher.getDragLayer().isEventOverView(mContent, ev)) {
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close(true);
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return false;
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}
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}
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if (mNoIntercept) {
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return false;
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}
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int directionsToDetectScroll = mSwipeDetector.isIdleState() ?
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SwipeDetector.DIRECTION_NEGATIVE : 0;
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mSwipeDetector.setDetectableScrollConditions(
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directionsToDetectScroll, false);
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mSwipeDetector.onTouchEvent(ev);
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return mSwipeDetector.isDraggingOrSettling();
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}
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@Override
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public boolean onControllerTouchEvent(MotionEvent ev) {
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return mSwipeDetector.onTouchEvent(ev);
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}
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/* SwipeDetector.Listener */
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@Override
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public void onDragStart(boolean start) { }
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@Override
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public boolean onDrag(float displacement, float velocity) {
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float range = mContent.getHeight();
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displacement = Utilities.boundToRange(displacement, 0, range);
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setTranslationShift(displacement / range);
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return true;
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}
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@Override
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public void onDragEnd(float velocity, boolean fling) {
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if ((fling && velocity > 0) || mTranslationShift > 0.5f) {
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mScrollInterpolator.setVelocityAtZero(velocity);
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mOpenCloseAnimator.setDuration(SwipeDetector.calculateDuration(
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velocity, TRANSLATION_SHIFT_CLOSED - mTranslationShift));
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close(true);
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} else {
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mOpenCloseAnimator.setValues(PropertyValuesHolder.ofFloat(
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TRANSLATION_SHIFT, TRANSLATION_SHIFT_OPENED));
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mOpenCloseAnimator.setDuration(
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SwipeDetector.calculateDuration(velocity, mTranslationShift))
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.setInterpolator(new DecelerateInterpolator());
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mOpenCloseAnimator.start();
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}
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}
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protected void handleClose(boolean animate, long defaultDuration) {
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if (!mIsOpen || mOpenCloseAnimator.isRunning()) {
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return;
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}
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if (animate) {
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mOpenCloseAnimator.setValues(
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PropertyValuesHolder.ofFloat(TRANSLATION_SHIFT, TRANSLATION_SHIFT_CLOSED));
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mOpenCloseAnimator.addListener(new AnimatorListenerAdapter() {
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@Override
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public void onAnimationEnd(Animator animation) {
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onCloseComplete();
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}
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});
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if (mSwipeDetector.isIdleState()) {
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mOpenCloseAnimator
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.setDuration(defaultDuration)
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.setInterpolator(new AccelerateInterpolator());
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} else {
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mOpenCloseAnimator.setInterpolator(mScrollInterpolator);
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}
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mOpenCloseAnimator.start();
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} else {
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setTranslationShift(TRANSLATION_SHIFT_CLOSED);
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onCloseComplete();
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}
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}
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protected void onCloseComplete() {
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mIsOpen = false;
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mLauncher.getDragLayer().removeView(this);
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mLauncher.getSystemUiController().updateUiState(
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SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET, 0);
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}
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protected void setupNavBarColor() {
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boolean isSheetDark = Themes.getAttrBoolean(mLauncher, R.attr.isMainColorDark);
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mLauncher.getSystemUiController().updateUiState(
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SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET,
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isSheetDark ? SystemUiController.FLAG_DARK_NAV : SystemUiController.FLAG_LIGHT_NAV);
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}
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@Override
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public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) {
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targetParent.containerType = ContainerType.WIDGETS;
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}
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@Override
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public final void logActionCommand(int command) {
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// TODO: be more specific
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mLauncher.getUserEventDispatcher().logActionCommand(command, ContainerType.WIDGETS);
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}
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}
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