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/*
* 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.uioverrides.states;
import static android.view.View.VISIBLE;
import static com.android.launcher3.LauncherState.ALL_APPS;
import static com.android.launcher3.LauncherState.HINT_STATE;
import static com.android.launcher3.LauncherState.HINT_STATE_TWO_BUTTON;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.LauncherState.OVERVIEW;
import static com.android.launcher3.LauncherState.OVERVIEW_SPLIT_SELECT;
import static com.android.launcher3.QuickstepTransitionManager.TASKBAR_TO_HOME_DURATION;
import static com.android.launcher3.WorkspaceStateTransitionAnimation.getWorkspaceSpringScaleAnimator;
import static com.android.launcher3.anim.Interpolators.ACCEL;
import static com.android.launcher3.anim.Interpolators.ACCEL_DEACCEL;
import static com.android.launcher3.anim.Interpolators.DEACCEL;
import static com.android.launcher3.anim.Interpolators.DEACCEL_1_7;
import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
import static com.android.launcher3.anim.Interpolators.EMPHASIZED_ACCELERATE;
import static com.android.launcher3.anim.Interpolators.EMPHASIZED_DECELERATE;
import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
import static com.android.launcher3.anim.Interpolators.FINAL_FRAME;
import static com.android.launcher3.anim.Interpolators.INSTANT;
import static com.android.launcher3.anim.Interpolators.LINEAR;
import static com.android.launcher3.anim.Interpolators.OVERSHOOT_0_75;
import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
import static com.android.launcher3.anim.Interpolators.clampToProgress;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_DEPTH;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_ACTIONS_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SPLIT_SELECT_FLOATING_TASK_TRANSLATE_OFFSCREEN;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SPLIT_SELECT_INSTRUCTIONS_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_SCALE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_TRANSLATE;
import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
import android.animation.ValueAnimator;
import com.android.launcher3.CellLayout;
import com.android.launcher3.Hotseat;
import com.android.launcher3.LauncherState;
import com.android.launcher3.Workspace;
import com.android.launcher3.states.StateAnimationConfig;
import com.android.launcher3.touch.AllAppsSwipeController;
import com.android.launcher3.uioverrides.QuickstepLauncher;
import com.android.launcher3.util.DisplayController;
import com.android.quickstep.util.RecentsAtomicAnimationFactory;
import com.android.quickstep.util.SplitAnimationTimings;
import com.android.quickstep.views.RecentsView;
/**
* Animation factory for quickstep specific transitions
*/
public class QuickstepAtomicAnimationFactory extends
RecentsAtomicAnimationFactory<QuickstepLauncher, LauncherState> {
// Scale recents takes before animating in
private static final float RECENTS_PREPARE_SCALE = 1.33f;
// Scale workspace takes before animating in
private static final float WORKSPACE_PREPARE_SCALE = 0.92f;
// Constants to specify how to scroll RecentsView to the default page if it's not already there.
private static final int DEFAULT_PAGE = 0;
private static final int PER_PAGE_SCROLL_DURATION = 150;
private static final int MAX_PAGE_SCROLL_DURATION = 750;
// Due to use of physics, duration may differ between devices so we need to calculate and
// cache the value.
private int mHintToNormalDuration = -1;
public QuickstepAtomicAnimationFactory(QuickstepLauncher activity) {
super(activity);
}
@Override
public void prepareForAtomicAnimation(LauncherState fromState, LauncherState toState,
StateAnimationConfig config) {
RecentsView overview = mActivity.getOverviewPanel();
if ((fromState == OVERVIEW || fromState == OVERVIEW_SPLIT_SELECT) && toState == NORMAL) {
overview.switchToScreenshot(() ->
overview.finishRecentsAnimation(true /* toRecents */, null));
if (fromState == OVERVIEW_SPLIT_SELECT) {
config.setInterpolator(ANIM_OVERVIEW_SPLIT_SELECT_FLOATING_TASK_TRANSLATE_OFFSCREEN,
clampToProgress(EMPHASIZED_ACCELERATE, 0, 0.4f));
config.setInterpolator(ANIM_OVERVIEW_SPLIT_SELECT_INSTRUCTIONS_FADE,
clampToProgress(LINEAR, 0, 0.33f));
}
config.setInterpolator(ANIM_OVERVIEW_ACTIONS_FADE, clampToProgress(LINEAR, 0, 0.25f));
config.setInterpolator(ANIM_SCRIM_FADE,
fromState == OVERVIEW_SPLIT_SELECT
? clampToProgress(LINEAR, 0.33f, 1)
: LINEAR);
config.setInterpolator(ANIM_WORKSPACE_SCALE, DEACCEL);
config.setInterpolator(ANIM_WORKSPACE_FADE, ACCEL);
if (DisplayController.getNavigationMode(mActivity).hasGestures
&& overview.getTaskViewCount() > 0) {
// Overview is going offscreen, so keep it at its current scale and opacity.
config.setInterpolator(ANIM_OVERVIEW_SCALE, FINAL_FRAME);
config.setInterpolator(ANIM_OVERVIEW_FADE, FINAL_FRAME);
config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X,
fromState == OVERVIEW_SPLIT_SELECT
? EMPHASIZED_DECELERATE
: clampToProgress(FAST_OUT_SLOW_IN, 0, 0.75f));
config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, FINAL_FRAME);
// Scroll RecentsView to page 0 as it goes offscreen, if necessary.
int numPagesToScroll = overview.getNextPage() - DEFAULT_PAGE;
long scrollDuration = Math.min(MAX_PAGE_SCROLL_DURATION,
numPagesToScroll * PER_PAGE_SCROLL_DURATION);
config.duration = Math.max(config.duration, scrollDuration);
// Sync scroll so that it ends before or at the same time as the taskbar animation.
if (DisplayController.isTransientTaskbar(mActivity)
&& mActivity.getDeviceProfile().isTaskbarPresent) {
config.duration = Math.min(config.duration, TASKBAR_TO_HOME_DURATION);
}
overview.snapToPage(DEFAULT_PAGE, Math.toIntExact(config.duration));
} else {
config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, ACCEL_DEACCEL);
config.setInterpolator(ANIM_OVERVIEW_SCALE, clampToProgress(ACCEL, 0, 0.9f));
config.setInterpolator(ANIM_OVERVIEW_FADE, DEACCEL_1_7);
}
Workspace<?> workspace = mActivity.getWorkspace();
// Start from a higher workspace scale, but only if we're invisible so we don't jump.
boolean isWorkspaceVisible = workspace.getVisibility() == VISIBLE;
if (isWorkspaceVisible) {
CellLayout currentChild = (CellLayout) workspace.getChildAt(
workspace.getCurrentPage());
isWorkspaceVisible = currentChild.getVisibility() == VISIBLE
&& currentChild.getShortcutsAndWidgets().getAlpha() > 0;
}
if (!isWorkspaceVisible) {
workspace.setScaleX(WORKSPACE_PREPARE_SCALE);
workspace.setScaleY(WORKSPACE_PREPARE_SCALE);
}
Hotseat hotseat = mActivity.getHotseat();
boolean isHotseatVisible = hotseat.getVisibility() == VISIBLE && hotseat.getAlpha() > 0;
if (!isHotseatVisible) {
hotseat.setScaleX(WORKSPACE_PREPARE_SCALE);
hotseat.setScaleY(WORKSPACE_PREPARE_SCALE);
}
} else if ((fromState == NORMAL || fromState == HINT_STATE
|| fromState == HINT_STATE_TWO_BUTTON) && toState == OVERVIEW) {
if (DisplayController.getNavigationMode(mActivity).hasGestures) {
config.setInterpolator(ANIM_WORKSPACE_SCALE,
fromState == NORMAL ? ACCEL : OVERSHOOT_1_2);
config.setInterpolator(ANIM_WORKSPACE_TRANSLATE, ACCEL);
// Scrolling in tasks, so show straight away
if (overview.getTaskViewCount() > 0) {
config.setInterpolator(ANIM_OVERVIEW_FADE, INSTANT);
} else {
config.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);
}
} else {
config.setInterpolator(ANIM_WORKSPACE_SCALE, OVERSHOOT_1_2);
config.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);
// Scale up the recents, if it is not coming from the side
if (overview.getVisibility() != VISIBLE || overview.getContentAlpha() == 0) {
RECENTS_SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
}
}
config.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
config.setInterpolator(ANIM_ALL_APPS_FADE, OVERSHOOT_1_2);
config.setInterpolator(ANIM_OVERVIEW_SCALE, OVERSHOOT_1_2);
config.setInterpolator(ANIM_DEPTH, OVERSHOOT_1_2);
config.setInterpolator(ANIM_SCRIM_FADE, t -> {
// Animate at the same rate until reaching progress 1, and skip the overshoot.
return Math.min(1, OVERSHOOT_1_2.getInterpolation(t));
});
config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, OVERSHOOT_1_2);
config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, OVERSHOOT_1_2);
} else if (fromState == HINT_STATE && toState == NORMAL) {
config.setInterpolator(ANIM_DEPTH, DEACCEL_3);
if (mHintToNormalDuration == -1) {
ValueAnimator va = getWorkspaceSpringScaleAnimator(mActivity,
mActivity.getWorkspace(),
toState.getWorkspaceScaleAndTranslation(mActivity).scale);
mHintToNormalDuration = (int) va.getDuration();
}
config.duration = Math.max(config.duration, mHintToNormalDuration);
} else if (fromState == ALL_APPS && toState == NORMAL) {
AllAppsSwipeController.applyAllAppsToNormalConfig(mActivity, config);
} else if (fromState == NORMAL && toState == ALL_APPS) {
AllAppsSwipeController.applyNormalToAllAppsAnimConfig(mActivity, config);
} else if (fromState == OVERVIEW && toState == OVERVIEW_SPLIT_SELECT) {
SplitAnimationTimings timings = mActivity.getDeviceProfile().isTablet
? SplitAnimationTimings.TABLET_OVERVIEW_TO_SPLIT
: SplitAnimationTimings.PHONE_OVERVIEW_TO_SPLIT;
config.setInterpolator(ANIM_OVERVIEW_ACTIONS_FADE, clampToProgress(LINEAR,
timings.getActionsFadeStartOffset(),
timings.getActionsFadeEndOffset()));
} else if ((fromState == NORMAL || fromState == ALL_APPS)
&& toState == OVERVIEW_SPLIT_SELECT) {
// Splitting from Home is currently only available on tablets
SplitAnimationTimings timings = SplitAnimationTimings.TABLET_HOME_TO_SPLIT;
config.setInterpolator(ANIM_SCRIM_FADE, clampToProgress(LINEAR,
timings.getScrimFadeInStartOffset(),
timings.getScrimFadeInEndOffset()));
config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, OVERSHOOT_0_75);
config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, OVERSHOOT_0_75);
}
}
}
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