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/*
* Copyright (C) 2021 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.taskbar;
import static android.view.View.GONE;
import static android.view.View.VISIBLE;
import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_FRAME;
import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_REGION;
import android.graphics.Rect;
import android.inputmethodservice.InputMethodService;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnLongClickListener;
import androidx.annotation.NonNull;
import com.android.launcher3.R;
import com.android.launcher3.anim.AlphaUpdateListener;
import com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo;
/**
* Controller for taskbar icon UI
*/
public class TaskbarIconController {
private final Rect mTempRect = new Rect();
private final TaskbarActivityContext mActivity;
private final TaskbarDragLayer mDragLayer;
private final TaskbarView mTaskbarView;
private final ImeBarView mImeBarView;
@NonNull
private TaskbarUIController mUIController = TaskbarUIController.DEFAULT;
TaskbarIconController(TaskbarActivityContext activity, TaskbarDragLayer dragLayer) {
mActivity = activity;
mDragLayer = dragLayer;
mTaskbarView = mDragLayer.findViewById(R.id.taskbar_view);
mImeBarView = mDragLayer.findViewById(R.id.ime_bar_view);
}
public void init(OnClickListener clickListener, OnLongClickListener longClickListener) {
mDragLayer.addOnLayoutChangeListener((v, a, b, c, d, e, f, g, h) ->
mUIController.alignRealHotseatWithTaskbar());
ButtonProvider buttonProvider = new ButtonProvider(mActivity);
mImeBarView.init(buttonProvider);
mTaskbarView.construct(clickListener, longClickListener, buttonProvider);
mTaskbarView.getLayoutParams().height = mActivity.getDeviceProfile().taskbarSize;
mDragLayer.init(new Callbacks(), mTaskbarView);
}
public void onDestroy() {
mDragLayer.onDestroy();
}
public void setUIController(@NonNull TaskbarUIController uiController) {
mUIController = uiController;
}
/**
* When in 3 button nav, the above doesn't get called since we prevent sysui nav bar from
* instantiating at all, which is what's responsible for sending sysui state flags over.
*
* @param vis IME visibility flag
*/
public void updateImeStatus(int displayId, int vis, boolean showImeSwitcher) {
if (displayId != mActivity.getDisplayId() || !mActivity.canShowNavButtons()) {
return;
}
mImeBarView.setImeSwitcherVisibility(showImeSwitcher);
setImeIsVisible((vis & InputMethodService.IME_VISIBLE) != 0);
}
/**
* Should be called when the IME visibility changes, so we can hide/show Taskbar accordingly.
*/
public void setImeIsVisible(boolean isImeVisible) {
mTaskbarView.setTouchesEnabled(!isImeVisible);
mUIController.onImeVisible(mDragLayer, isImeVisible);
}
/**
* Callbacks for {@link TaskbarDragLayer} to interact with the icon controller
*/
public class Callbacks {
/**
* Called to update the touchable insets
*/
public void updateInsetsTouchability(InsetsInfo insetsInfo) {
insetsInfo.touchableRegion.setEmpty();
if (mDragLayer.getAlpha() < AlphaUpdateListener.ALPHA_CUTOFF_THRESHOLD) {
// Let touches pass through us.
insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
} else if (mImeBarView.getVisibility() == VISIBLE) {
insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_FRAME);
} else if (!mUIController.isTaskbarTouchable()) {
// Let touches pass through us.
insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
} else if (mTaskbarView.areIconsVisible()) {
// Buttons are visible, take over the full taskbar area
insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_FRAME);
} else {
if (mTaskbarView.mSystemButtonContainer.getVisibility() == VISIBLE) {
mDragLayer.getDescendantRectRelativeToSelf(
mTaskbarView.mSystemButtonContainer, mTempRect);
insetsInfo.touchableRegion.set(mTempRect);
}
insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
}
// TaskbarContainerView provides insets to other apps based on contentInsets. These
// insets should stay consistent even if we expand TaskbarContainerView's bounds, e.g.
// to show a floating view like Folder. Thus, we set the contentInsets to be where
// mTaskbarView is, since its position never changes and insets rather than overlays.
insetsInfo.contentInsets.left = mTaskbarView.getLeft();
insetsInfo.contentInsets.top = mTaskbarView.getTop();
insetsInfo.contentInsets.right = mDragLayer.getWidth() - mTaskbarView.getRight();
insetsInfo.contentInsets.bottom = mDragLayer.getHeight() - mTaskbarView.getBottom();
}
public void onDragLayerViewRemoved() {
int count = mDragLayer.getChildCount();
// Ensure no other children present (like Folders, etc)
for (int i = 0; i < count; i++) {
View v = mDragLayer.getChildAt(i);
if (!((v instanceof TaskbarView) || (v instanceof ImeBarView))) {
return;
}
}
mActivity.setTaskbarWindowFullscreen(false);
}
public void updateImeBarVisibilityAlpha(float alpha) {
if (!mActivity.canShowNavButtons()) {
// TODO Remove sysui IME bar for gesture nav as well
return;
}
mImeBarView.setAlpha(alpha);
mImeBarView.setVisibility(alpha == 0 ? GONE : VISIBLE);
}
}
}
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