/*
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* Copyright (c) 2020 WildFireChat. All rights reserved.
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*/
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package cn.wildfire.chat.kit.contact.pick;
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import android.graphics.Rect;
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import android.os.Bundle;
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import android.text.Editable;
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import android.text.TextUtils;
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import android.view.View;
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import android.widget.EditText;
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import android.widget.FrameLayout;
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import android.widget.Toast;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.lifecycle.Observer;
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import androidx.lifecycle.ViewModelProviders;
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import androidx.recyclerview.widget.GridLayoutManager;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import butterknife.BindView;
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import butterknife.OnFocusChange;
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import butterknife.OnTextChanged;
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import cn.wildfire.chat.kit.R;
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import cn.wildfire.chat.kit.R2;
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import cn.wildfire.chat.kit.contact.BaseUserListFragment;
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import cn.wildfire.chat.kit.contact.UserListAdapter;
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import cn.wildfire.chat.kit.contact.model.UIUserInfo;
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import cn.wildfire.chat.kit.third.utils.UIUtils;
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import cn.wildfire.chat.kit.widget.QuickIndexBar;
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public abstract class PickUserFragment extends BaseUserListFragment implements QuickIndexBar.OnLetterUpdateListener, PickUser {
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private SearchAndPickUserFragment searchAndPickUserFragment;
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protected PickUserViewModel pickUserViewModel;
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@BindView(R2.id.pickedUserRecyclerView)
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protected RecyclerView pickedUserRecyclerView;
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@BindView(R2.id.searchEditText)
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EditText searchEditText;
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@BindView(R2.id.searchFrameLayout)
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FrameLayout searchUserFrameLayout;
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@BindView(R2.id.hint_view)
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protected View hintView;
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private boolean isSearchFragmentShowing = false;
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private PickedUserAdapter pickedUserAdapter;
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private Observer<UIUserInfo> contactCheckStatusUpdateLiveDataObserver = userInfo -> {
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((CheckableUserListAdapter) userListAdapter).updateUserStatus(userInfo);
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hideSearchContactFragment();
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updatePickedUserView(userInfo);
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};
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@Override
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public void onCreate(@Nullable Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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pickUserViewModel = ViewModelProviders.of(getActivity()).get(PickUserViewModel.class);
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pickUserViewModel.userCheckStatusUpdateLiveData().observeForever(contactCheckStatusUpdateLiveDataObserver);
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}
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@Override
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protected void afterViews(View view) {
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super.afterViews(view);
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initView();
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setupPickFromUsers();
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}
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@Override
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public void onDestroyView() {
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super.onDestroyView();
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pickUserViewModel.userCheckStatusUpdateLiveData().removeObserver(contactCheckStatusUpdateLiveDataObserver);
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}
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private void initView() {
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configPickedUserRecyclerView();
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pickedUserAdapter = getPickedUserAdapter();
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pickedUserRecyclerView.setAdapter(pickedUserAdapter);
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}
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protected void configPickedUserRecyclerView() {
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RecyclerView.LayoutManager pickedContactRecyclerViewLayoutManager = new LinearLayoutManager(getActivity(), GridLayoutManager.HORIZONTAL, false);
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pickedUserRecyclerView.setLayoutManager(pickedContactRecyclerViewLayoutManager);
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pickedUserRecyclerView.addItemDecoration(new Decoration());
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}
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protected PickedUserAdapter getPickedUserAdapter() {
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return new PickedUserAdapter();
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}
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@OnFocusChange(R2.id.searchEditText)
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void onSearchEditTextFocusChange(View view, boolean focus) {
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if (getActivity() == null || getActivity().isFinishing()) {
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return;
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}
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if (focus) {
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showSearchContactFragment();
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} else {
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hideSearchContactFragment();
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}
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handleHintView(focus);
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}
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protected void handleHintView(boolean focus) {
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if (pickedUserAdapter.getItemCount() == 0 && !focus) {
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hintView.setVisibility(View.VISIBLE);
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} else {
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hintView.setVisibility(View.GONE);
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}
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}
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@OnTextChanged(value = R2.id.searchEditText, callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
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void search(Editable editable) {
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// restore view state
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if (searchAndPickUserFragment == null) {
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return;
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}
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String key = editable.toString();
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if (!TextUtils.isEmpty(key)) {
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searchAndPickUserFragment.search(key);
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} else {
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searchAndPickUserFragment.rest();
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}
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}
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@Override
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public int getContentLayoutResId() {
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return R.layout.contact_pick_fragment;
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}
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@Override
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public UserListAdapter onCreateUserListAdapter() {
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return new CheckableUserListAdapter(this);
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}
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abstract protected void setupPickFromUsers();
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private void showSearchContactFragment() {
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if (searchAndPickUserFragment == null) {
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searchAndPickUserFragment = new SearchAndPickUserFragment();
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searchAndPickUserFragment.setPickUser(this);
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}
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searchUserFrameLayout.setVisibility(View.VISIBLE);
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getChildFragmentManager().beginTransaction()
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.replace(R.id.searchFrameLayout, searchAndPickUserFragment)
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.commit();
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isSearchFragmentShowing = true;
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}
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public void hideSearchContactFragment() {
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if (!isSearchFragmentShowing) {
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return;
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}
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searchEditText.setText("");
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searchEditText.clearFocus();
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searchUserFrameLayout.setVisibility(View.GONE);
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getChildFragmentManager().beginTransaction().remove(searchAndPickUserFragment).commit();
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isSearchFragmentShowing = false;
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}
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@Override
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public void onUserClick(UIUserInfo userInfo) {
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if (userInfo.isCheckable()) {
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if (!pickUserViewModel.checkUser(userInfo, !userInfo.isChecked())) {
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Toast.makeText(getActivity(), "选人超限", Toast.LENGTH_SHORT).show();
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}
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}
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}
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protected void handleEditText() {
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if (pickedUserAdapter.getItemCount() == 0) {
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searchEditText.setHint("");
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} else {
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searchEditText.setHint("搜索");
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}
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}
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private void updatePickedUserView(UIUserInfo userInfo) {
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if (userInfo.isChecked()) {
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pickedUserAdapter.addUser(userInfo);
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} else {
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pickedUserAdapter.removeUser(userInfo);
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}
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handleHintView(false);
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handleEditText();
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}
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private static class Decoration extends RecyclerView.ItemDecoration {
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@Override
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public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
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int position = parent.getChildAdapterPosition(view);
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if (position < parent.getAdapter().getItemCount() - 1) {
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outRect.right = UIUtils.dip2Px(4);
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} else {
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outRect.right = 0;
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}
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}
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}
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}
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