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/*
* Copyright (C) 2012 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.deskclock;
import android.view.KeyEvent;
import android.widget.ImageView;
import androidx.annotation.ColorInt;
import androidx.annotation.Keep;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import com.android.deskclock.uidata.UiDataModel;
import com.android.deskclock.uidata.UiDataModel.Tab;
public abstract class DeskClockFragment extends Fragment implements FabContainer, FabController {
/** The tab associated with this fragment. */
private final Tab mTab;
/** The container that houses the fab and its left and right buttons. */
private FabContainer mFabContainer;
public DeskClockFragment(Tab tab) {
mTab = tab;
}
@Override
public void onResume() {
super.onResume();
// Update the fab and buttons in case their state changed while the fragment was paused.
if (isTabSelected()) {
updateFab(FAB_AND_BUTTONS_IMMEDIATE);
}
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
// By default return false so event continues to propagate
return false;
}
@Override
public void onLeftButtonClick(@NonNull ImageView left) {
// Do nothing here, only in derived classes
}
@Override
public void onRightButtonClick(@NonNull ImageView right) {
// Do nothing here, only in derived classes
}
@Override
public void onMorphFab(@NonNull ImageView fab) {
// Do nothing here, only in derived classes
}
/**
* @param color the newly installed app window color
*/
protected void onAppColorChanged(@ColorInt int color) {
// Do nothing here, only in derived classes
}
/**
* @param fabContainer the container that houses the fab and its left and right buttons
*/
public final void setFabContainer(FabContainer fabContainer) {
mFabContainer = fabContainer;
}
/**
* Requests that the parent activity update the fab and buttons.
*
* @param updateTypes the manner in which the fab container should be updated
*/
@Override
public final void updateFab(@UpdateFabFlag int updateTypes) {
if (mFabContainer != null) {
mFabContainer.updateFab(updateTypes);
}
}
/**
* @return {@code true} iff the currently selected tab displays this fragment
*/
public final boolean isTabSelected() {
return UiDataModel.getUiDataModel().getSelectedTab() == mTab;
}
/**
* Select the tab that displays this fragment.
*/
@Keep
public final void selectTab() {
UiDataModel.getUiDataModel().setSelectedTab(mTab);
}
/**
* Updates the scrolling state in the {@link UiDataModel} for this tab.
*
* @param scrolledToTop {@code true} iff the vertical scroll position of this tab is at the top
*/
public final void setTabScrolledToTop(boolean scrolledToTop) {
UiDataModel.getUiDataModel().setTabScrolledToTop(mTab, scrolledToTop);
}
}
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