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/*
* Copyright (C) 2015 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.touch;
import static com.android.app.animation.Interpolators.DECELERATED_EASE;
import static com.android.app.animation.Interpolators.EMPHASIZED;
import static com.android.app.animation.Interpolators.EMPHASIZED_ACCELERATE;
import static com.android.app.animation.Interpolators.EMPHASIZED_DECELERATE;
import static com.android.app.animation.Interpolators.FINAL_FRAME;
import static com.android.app.animation.Interpolators.INSTANT;
import static com.android.app.animation.Interpolators.LINEAR;
import static com.android.app.animation.Interpolators.clampToProgress;
import static com.android.app.animation.Interpolators.mapToProgress;
import static com.android.launcher3.LauncherState.ALL_APPS;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_BOTTOM_SHEET_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_KEYBOARD_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_DEPTH;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_SCALE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_TRANSLATE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_VERTICAL_PROGRESS;
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.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
import android.view.MotionEvent;
import android.view.animation.Interpolator;
import com.android.app.animation.Interpolators;
import com.android.launcher3.AbstractFloatingView;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherState;
import com.android.launcher3.states.StateAnimationConfig;
/**
* TouchController to switch between NORMAL and ALL_APPS state.
*/
public class AllAppsSwipeController extends AbstractStateChangeTouchController {
private static final float ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD = 0.8f;
private static final float ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD = 0.5f;
private static final float ALL_APPS_SCRIM_VISIBLE_THRESHOLD = 0.1f;
private static final float ALL_APPS_STAGGERED_FADE_THRESHOLD = 0.5f;
public static final Interpolator ALL_APPS_SCRIM_RESPONDER =
Interpolators.clampToProgress(
LINEAR, ALL_APPS_SCRIM_VISIBLE_THRESHOLD, ALL_APPS_STAGGERED_FADE_THRESHOLD);
public static final Interpolator ALL_APPS_CLAMPING_RESPONDER =
Interpolators.clampToProgress(
LINEAR,
1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD);
// ---- Custom interpolators for NORMAL -> ALL_APPS on phones only. ----
public static final float ALL_APPS_STATE_TRANSITION_ATOMIC = 0.3333f;
public static final float ALL_APPS_STATE_TRANSITION_MANUAL = 0.4f;
private static final float ALL_APPS_FADE_END_ATOMIC = 0.8333f;
private static final float ALL_APPS_FADE_END_MANUAL = 0.8f;
private static final float ALL_APPS_FULL_DEPTH_PROGRESS = 0.5f;
private static final float SCRIM_FADE_START_ATOMIC = 0.2642f;
private static final float SCRIM_FADE_START_MANUAL = 0.117f;
private static final float WORKSPACE_MOTION_START_ATOMIC = 0.1667f;
private static final Interpolator LINEAR_EARLY_MANUAL =
Interpolators.clampToProgress(LINEAR, 0f, ALL_APPS_STATE_TRANSITION_MANUAL);
private static final Interpolator STEP_TRANSITION_ATOMIC =
Interpolators.clampToProgress(FINAL_FRAME, 0f, ALL_APPS_STATE_TRANSITION_ATOMIC);
private static final Interpolator STEP_TRANSITION_MANUAL =
Interpolators.clampToProgress(FINAL_FRAME, 0f, ALL_APPS_STATE_TRANSITION_MANUAL);
// The blur to All Apps is set to be complete when the interpolator is at 0.5.
private static final Interpolator BLUR_ADJUSTED =
Interpolators.mapToProgress(LINEAR, 0f, ALL_APPS_FULL_DEPTH_PROGRESS);
public static final Interpolator BLUR_ATOMIC =
Interpolators.clampToProgress(
BLUR_ADJUSTED, WORKSPACE_MOTION_START_ATOMIC, ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator BLUR_MANUAL =
Interpolators.clampToProgress(BLUR_ADJUSTED, 0f, ALL_APPS_STATE_TRANSITION_MANUAL);
public static final Interpolator WORKSPACE_FADE_ATOMIC = STEP_TRANSITION_ATOMIC;
public static final Interpolator WORKSPACE_FADE_MANUAL = STEP_TRANSITION_MANUAL;
public static final Interpolator WORKSPACE_SCALE_ATOMIC =
Interpolators.clampToProgress(
EMPHASIZED_ACCELERATE, WORKSPACE_MOTION_START_ATOMIC,
ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator WORKSPACE_SCALE_MANUAL = LINEAR_EARLY_MANUAL;
public static final Interpolator HOTSEAT_FADE_ATOMIC = STEP_TRANSITION_ATOMIC;
public static final Interpolator HOTSEAT_FADE_MANUAL = STEP_TRANSITION_MANUAL;
public static final Interpolator HOTSEAT_SCALE_ATOMIC =
Interpolators.clampToProgress(
EMPHASIZED_ACCELERATE, WORKSPACE_MOTION_START_ATOMIC,
ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator HOTSEAT_SCALE_MANUAL = LINEAR_EARLY_MANUAL;
public static final Interpolator HOTSEAT_TRANSLATE_ATOMIC = STEP_TRANSITION_ATOMIC;
public static final Interpolator HOTSEAT_TRANSLATE_MANUAL = STEP_TRANSITION_MANUAL;
public static final Interpolator SCRIM_FADE_ATOMIC =
Interpolators.clampToProgress(
Interpolators.mapToProgress(LINEAR, 0f, 0.8f),
SCRIM_FADE_START_ATOMIC, ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator SCRIM_FADE_MANUAL =
Interpolators.clampToProgress(
LINEAR, SCRIM_FADE_START_MANUAL, ALL_APPS_STATE_TRANSITION_MANUAL);
public static final Interpolator ALL_APPS_FADE_ATOMIC =
Interpolators.clampToProgress(
Interpolators.mapToProgress(EMPHASIZED_DECELERATE, 0.2f, 1f),
ALL_APPS_STATE_TRANSITION_ATOMIC, ALL_APPS_FADE_END_ATOMIC);
public static final Interpolator ALL_APPS_FADE_MANUAL =
Interpolators.clampToProgress(
LINEAR, ALL_APPS_STATE_TRANSITION_MANUAL, ALL_APPS_FADE_END_MANUAL);
public static final Interpolator ALL_APPS_VERTICAL_PROGRESS_ATOMIC =
Interpolators.clampToProgress(
Interpolators.mapToProgress(EMPHASIZED_DECELERATE, 0.4f, 1f),
ALL_APPS_STATE_TRANSITION_ATOMIC, 1f);
public static final Interpolator ALL_APPS_VERTICAL_PROGRESS_MANUAL = LINEAR;
// --------
public AllAppsSwipeController(Launcher l) {
super(l, SingleAxisSwipeDetector.VERTICAL);
}
@Override
protected boolean canInterceptTouch(MotionEvent ev) {
if (mCurrentAnimation != null) {
// If we are already animating from a previous state, we can intercept.
return true;
}
if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
return false;
}
if (!mLauncher.isInState(NORMAL) && !mLauncher.isInState(ALL_APPS)) {
// Don't listen for the swipe gesture if we are already in some other state.
return false;
}
if (mLauncher.isInState(ALL_APPS) && !mLauncher.getAppsView().shouldContainerScroll(ev)) {
return false;
}
return true;
}
@Override
protected LauncherState getTargetState(LauncherState fromState, boolean isDragTowardPositive) {
if (fromState == NORMAL && isDragTowardPositive) {
return ALL_APPS;
} else if (fromState == ALL_APPS && !isDragTowardPositive) {
return NORMAL;
}
return fromState;
}
@Override
protected float initCurrentAnimation() {
float range = getShiftRange();
StateAnimationConfig config = getConfigForStates(mFromState, mToState);
config.duration = (long) (2 * range);
mCurrentAnimation = mLauncher.getStateManager()
.createAnimationToNewWorkspace(mToState, config);
float startVerticalShift = mFromState.getVerticalProgress(mLauncher) * range;
float endVerticalShift = mToState.getVerticalProgress(mLauncher) * range;
float totalShift = endVerticalShift - startVerticalShift;
return 1 / totalShift;
}
@Override
protected StateAnimationConfig getConfigForStates(LauncherState fromState,
LauncherState toState) {
StateAnimationConfig config = super.getConfigForStates(fromState, toState);
config.userControlled = true;
if (fromState == NORMAL && toState == ALL_APPS) {
applyNormalToAllAppsAnimConfig(mLauncher, config);
} else if (fromState == ALL_APPS && toState == NORMAL) {
applyAllAppsToNormalConfig(mLauncher, config);
}
return config;
}
/**
* Applies Animation config values for transition from all apps to home.
*/
public static void applyAllAppsToNormalConfig(Launcher launcher, StateAnimationConfig config) {
if (launcher.getDeviceProfile().isTablet) {
config.setInterpolator(ANIM_SCRIM_FADE,
Interpolators.reverse(ALL_APPS_SCRIM_RESPONDER));
config.setInterpolator(ANIM_ALL_APPS_FADE, FINAL_FRAME);
if (!config.userControlled) {
config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED);
}
config.setInterpolator(ANIM_WORKSPACE_SCALE, DECELERATED_EASE);
config.setInterpolator(ANIM_DEPTH, DECELERATED_EASE);
} else {
if (config.userControlled) {
config.setInterpolator(ANIM_DEPTH, Interpolators.reverse(BLUR_MANUAL));
config.setInterpolator(ANIM_WORKSPACE_FADE,
Interpolators.reverse(WORKSPACE_FADE_MANUAL));
config.setInterpolator(ANIM_WORKSPACE_SCALE,
Interpolators.reverse(WORKSPACE_SCALE_MANUAL));
config.setInterpolator(ANIM_HOTSEAT_FADE,
Interpolators.reverse(HOTSEAT_FADE_MANUAL));
config.setInterpolator(ANIM_HOTSEAT_SCALE,
Interpolators.reverse(HOTSEAT_SCALE_MANUAL));
config.setInterpolator(ANIM_HOTSEAT_TRANSLATE,
Interpolators.reverse(HOTSEAT_TRANSLATE_MANUAL));
config.setInterpolator(ANIM_SCRIM_FADE, Interpolators.reverse(SCRIM_FADE_MANUAL));
config.setInterpolator(ANIM_ALL_APPS_FADE,
Interpolators.reverse(ALL_APPS_FADE_MANUAL));
config.setInterpolator(ANIM_VERTICAL_PROGRESS,
Interpolators.reverse(ALL_APPS_VERTICAL_PROGRESS_MANUAL));
} else {
config.setInterpolator(ANIM_SCRIM_FADE,
Interpolators.reverse(ALL_APPS_SCRIM_RESPONDER));
config.setInterpolator(ANIM_ALL_APPS_FADE, ALL_APPS_CLAMPING_RESPONDER);
config.setInterpolator(ANIM_WORKSPACE_FADE, INSTANT);
config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED_ACCELERATE);
}
}
}
/**
* Applies Animation config values for transition from home to all apps.
*/
public static void applyNormalToAllAppsAnimConfig(
Launcher launcher, StateAnimationConfig config) {
if (launcher.getDeviceProfile().isTablet) {
config.setInterpolator(ANIM_ALL_APPS_FADE, INSTANT);
config.setInterpolator(ANIM_SCRIM_FADE, ALL_APPS_SCRIM_RESPONDER);
if (!config.userControlled) {
config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED);
}
config.setInterpolator(ANIM_WORKSPACE_SCALE, DECELERATED_EASE);
config.setInterpolator(ANIM_DEPTH, DECELERATED_EASE);
} else {
config.setInterpolator(ANIM_DEPTH, config.userControlled ? BLUR_MANUAL : BLUR_ATOMIC);
config.setInterpolator(ANIM_WORKSPACE_FADE,
config.userControlled ? WORKSPACE_FADE_MANUAL : WORKSPACE_FADE_ATOMIC);
config.setInterpolator(ANIM_WORKSPACE_SCALE,
config.userControlled ? WORKSPACE_SCALE_MANUAL : WORKSPACE_SCALE_ATOMIC);
config.setInterpolator(ANIM_HOTSEAT_FADE,
config.userControlled ? HOTSEAT_FADE_MANUAL : HOTSEAT_FADE_ATOMIC);
config.setInterpolator(ANIM_HOTSEAT_SCALE,
config.userControlled ? HOTSEAT_SCALE_MANUAL : HOTSEAT_SCALE_ATOMIC);
config.setInterpolator(ANIM_HOTSEAT_TRANSLATE,
config.userControlled ? HOTSEAT_TRANSLATE_MANUAL : HOTSEAT_TRANSLATE_ATOMIC);
config.setInterpolator(ANIM_SCRIM_FADE,
config.userControlled ? SCRIM_FADE_MANUAL : SCRIM_FADE_ATOMIC);
config.setInterpolator(ANIM_ALL_APPS_FADE,
config.userControlled ? ALL_APPS_FADE_MANUAL : ALL_APPS_FADE_ATOMIC);
config.setInterpolator(ANIM_VERTICAL_PROGRESS,
config.userControlled
? ALL_APPS_VERTICAL_PROGRESS_MANUAL
: ALL_APPS_VERTICAL_PROGRESS_ATOMIC);
}
}
/**
* Applies Animation config values for transition from overview to all apps.
*
* @param threshold progress at which all apps will open upon release
*/
public static void applyOverviewToAllAppsAnimConfig(
DeviceProfile deviceProfile, StateAnimationConfig config, float threshold) {
config.userControlled = true;
config.animFlags = SKIP_OVERVIEW;
if (deviceProfile.isTablet) {
config.setInterpolator(ANIM_ALL_APPS_FADE, INSTANT);
config.setInterpolator(ANIM_SCRIM_FADE, ALL_APPS_SCRIM_RESPONDER);
// The fact that we end on Workspace is not very ideal, but since we do, fade it in at
// the end of the transition. Don't scale/translate it.
config.setInterpolator(ANIM_WORKSPACE_FADE, clampToProgress(LINEAR, 0.8f, 1));
config.setInterpolator(ANIM_WORKSPACE_SCALE, INSTANT);
config.setInterpolator(ANIM_WORKSPACE_TRANSLATE, INSTANT);
} else {
// Pop the background panel, keyboard, and content in at full opacity at the threshold.
config.setInterpolator(ANIM_ALL_APPS_BOTTOM_SHEET_FADE,
thresholdInterpolator(threshold, INSTANT));
config.setInterpolator(ANIM_ALL_APPS_KEYBOARD_FADE,
thresholdInterpolator(threshold, INSTANT));
config.setInterpolator(ANIM_ALL_APPS_FADE, thresholdInterpolator(threshold, INSTANT));
config.setInterpolator(ANIM_VERTICAL_PROGRESS,
thresholdInterpolator(threshold, mapToProgress(LINEAR, threshold, 1f)));
}
}
/** Creates an interpolator that is 0 until the threshold, then follows given interpolator. */
private static Interpolator thresholdInterpolator(float threshold, Interpolator interpolator) {
return progress -> progress <= threshold ? 0 : interpolator.getInterpolation(progress);
}
}
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