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/*
* 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.uioverrides.states;
import static android.view.View.VISIBLE;
import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_FADE;
import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_SCALE;
import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_OVERVIEW_TRANSLATE_X;
import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_FADE;
import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_SCALE;
import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_WORKSPACE_TRANSLATE;
import static com.android.launcher3.anim.Interpolators.ACCEL;
import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_7;
import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
import static com.android.launcher3.states.RotationHelper.REQUEST_ROTATE;
import android.graphics.Rect;
import android.view.View;
import com.android.launcher3.AbstractFloatingView;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherState;
import com.android.launcher3.R;
import com.android.launcher3.Workspace;
import com.android.launcher3.allapps.DiscoveryBounce;
import com.android.launcher3.anim.AnimatorSetBuilder;
import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
import com.android.quickstep.SysUINavigationMode;
import com.android.quickstep.util.LayoutUtils;
import com.android.quickstep.views.RecentsView;
import com.android.quickstep.views.TaskView;
/**
* Definition for overview state
*/
public class OverviewState extends LauncherState {
// Scale recents takes before animating in
private static final float RECENTS_PREPARE_SCALE = 1.33f;
protected static final Rect sTempRect = new Rect();
private static final int STATE_FLAGS = FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED
| FLAG_DISABLE_RESTORE | FLAG_OVERVIEW_UI | FLAG_DISABLE_ACCESSIBILITY;
public OverviewState(int id) {
this(id, OVERVIEW_TRANSITION_MS, STATE_FLAGS);
}
protected OverviewState(int id, int transitionDuration, int stateFlags) {
this(id, ContainerType.TASKSWITCHER, transitionDuration, stateFlags);
}
protected OverviewState(int id, int logContainer, int transitionDuration, int stateFlags) {
super(id, logContainer, transitionDuration, stateFlags);
}
@Override
public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) {
RecentsView recentsView = launcher.getOverviewPanel();
Workspace workspace = launcher.getWorkspace();
View workspacePage = workspace.getPageAt(workspace.getCurrentPage());
float workspacePageWidth = workspacePage != null && workspacePage.getWidth() != 0
? workspacePage.getWidth() : launcher.getDeviceProfile().availableWidthPx;
recentsView.getTaskSize(sTempRect);
float scale = (float) sTempRect.width() / workspacePageWidth;
float parallaxFactor = 0.5f;
return new ScaleAndTranslation(scale, 0, -getDefaultSwipeHeight(launcher) * parallaxFactor);
}
@Override
public ScaleAndTranslation getHotseatScaleAndTranslation(Launcher launcher) {
if ((getVisibleElements(launcher) & HOTSEAT_ICONS) != 0) {
DeviceProfile dp = launcher.getDeviceProfile();
if (dp.allAppsIconSizePx >= dp.iconSizePx) {
return new ScaleAndTranslation(1, 0, 0);
} else {
float scale = ((float) dp.allAppsIconSizePx) / dp.iconSizePx;
// Distance between the screen center (which is the pivotY for hotseat) and the
// bottom of the hotseat (which we want to preserve)
float distanceFromBottom = dp.heightPx / 2 - dp.hotseatBarBottomPaddingPx;
// On scaling, the bottom edge is moved closer to the pivotY. We move the
// hotseat back down so that the bottom edge's position is preserved.
float translationY = distanceFromBottom * (1 - scale);
return new ScaleAndTranslation(scale, 0, translationY);
}
}
return getWorkspaceScaleAndTranslation(launcher);
}
@Override
public ScaleAndTranslation getOverviewScaleAndTranslation(Launcher launcher) {
return new ScaleAndTranslation(1f, 0f, 0f);
}
@Override
public void onStateEnabled(Launcher launcher) {
AbstractFloatingView.closeAllOpenViews(launcher);
}
@Override
public void onStateTransitionEnd(Launcher launcher) {
launcher.getRotationHelper().setCurrentStateRequest(REQUEST_ROTATE);
DiscoveryBounce.showForOverviewIfNeeded(launcher);
}
@Override
public PageAlphaProvider getWorkspacePageAlphaProvider(Launcher launcher) {
return new PageAlphaProvider(DEACCEL_2) {
@Override
public float getPageAlpha(int pageIndex) {
return 0;
}
};
}
@Override
public int getVisibleElements(Launcher launcher) {
if (launcher.getDeviceProfile().isVerticalBarLayout()) {
return VERTICAL_SWIPE_INDICATOR | RECENTS_CLEAR_ALL_BUTTON;
} else {
boolean hasAllAppsHeaderExtra = launcher.getAppsView() != null
&& launcher.getAppsView().getFloatingHeaderView().hasVisibleContent();
return HOTSEAT_SEARCH_BOX | VERTICAL_SWIPE_INDICATOR | RECENTS_CLEAR_ALL_BUTTON |
(hasAllAppsHeaderExtra ? ALL_APPS_HEADER_EXTRA : HOTSEAT_ICONS);
}
}
@Override
public float getOverviewScrimAlpha(Launcher launcher) {
return 0.5f;
}
@Override
public float getVerticalProgress(Launcher launcher) {
if ((getVisibleElements(launcher) & ALL_APPS_HEADER_EXTRA) == 0) {
// We have no all apps content, so we're still at the fully down progress.
return super.getVerticalProgress(launcher);
}
return getDefaultVerticalProgress(launcher);
}
public static float getDefaultVerticalProgress(Launcher launcher) {
return 1 - (getDefaultSwipeHeight(launcher)
/ launcher.getAllAppsController().getShiftRange());
}
@Override
public String getDescription(Launcher launcher) {
return launcher.getString(R.string.accessibility_desc_recent_apps);
}
public static float getDefaultSwipeHeight(Launcher launcher) {
return LayoutUtils.getDefaultSwipeHeight(launcher, launcher.getDeviceProfile());
}
@Override
public void onBackPressed(Launcher launcher) {
TaskView taskView = launcher.<RecentsView>getOverviewPanel().getRunningTaskView();
if (taskView != null) {
launcher.getUserEventDispatcher().logActionCommand(Action.Command.BACK,
newContainerTarget(ContainerType.OVERVIEW));
taskView.launchTask(true);
} else {
super.onBackPressed(launcher);
}
}
@Override
public void prepareForAtomicAnimation(Launcher launcher, LauncherState fromState,
AnimatorSetBuilder builder) {
if (fromState == NORMAL && this == OVERVIEW) {
if (SysUINavigationMode.getMode(launcher) == SysUINavigationMode.Mode.NO_BUTTON) {
builder.setInterpolator(ANIM_WORKSPACE_SCALE, ACCEL);
builder.setInterpolator(ANIM_WORKSPACE_TRANSLATE, ACCEL);
} else {
builder.setInterpolator(ANIM_WORKSPACE_SCALE, OVERSHOOT_1_2);
// Scale up the recents, if it is not coming from the side
RecentsView overview = launcher.getOverviewPanel();
if (overview.getVisibility() != VISIBLE || overview.getContentAlpha() == 0) {
SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
}
}
builder.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
builder.setInterpolator(ANIM_OVERVIEW_SCALE, OVERSHOOT_1_2);
builder.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, OVERSHOOT_1_7);
builder.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);
}
}
public static OverviewState newBackgroundState(int id) {
return new BackgroundAppState(id);
}
public static OverviewState newPeekState(int id) {
return new OverviewPeekState(id);
}
public static OverviewState newSwitchState(int id) {
return new QuickSwitchState(id);
}
}
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