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/*
* Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
* SPDX-License-Identifier: GPL-3.0-only
*/
package com.zeapo.pwdstore
import android.content.Context
import android.content.Intent
import android.os.Bundle
import android.os.Parcelable
import android.view.LayoutInflater
import android.view.Menu
import android.view.MenuItem
import android.view.View
import android.view.ViewGroup
import androidx.appcompat.view.ActionMode
import androidx.fragment.app.Fragment
import androidx.fragment.app.activityViewModels
import androidx.lifecycle.observe
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
import com.google.android.material.floatingactionbutton.FloatingActionButton
import com.google.android.material.snackbar.Snackbar
import com.zeapo.pwdstore.databinding.PasswordRecyclerViewBinding
import com.zeapo.pwdstore.git.GitActivity
import com.zeapo.pwdstore.ui.OnOffItemAnimator
import com.zeapo.pwdstore.ui.adapters.PasswordItemRecyclerAdapter
import com.zeapo.pwdstore.utils.PasswordItem
import com.zeapo.pwdstore.utils.PasswordRepository
import java.io.File
import java.util.Stack
import me.zhanghai.android.fastscroll.FastScrollerBuilder
class PasswordFragment : Fragment() {
private lateinit var recyclerAdapter: PasswordItemRecyclerAdapter
private lateinit var recyclerView: RecyclerView
private lateinit var listener: OnFragmentInteractionListener
private lateinit var swipeRefresher: SwipeRefreshLayout
private var recyclerViewStateToRestore: Parcelable? = null
private var actionMode: ActionMode? = null
private var _binding: PasswordRecyclerViewBinding? = null
private val model: SearchableRepositoryViewModel by activityViewModels()
private val binding get() = _binding!!
private fun requireStore() = requireActivity() as PasswordStore
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
_binding = PasswordRecyclerViewBinding.inflate(inflater, container, false)
initializePasswordList()
val fab = binding.fab
fab.setOnClickListener {
toggleFabExpand(fab)
}
binding.createFolder.setOnClickListener {
requireStore().createFolder()
toggleFabExpand(fab)
}
binding.createPassword.setOnClickListener {
requireStore().createPassword()
toggleFabExpand(fab)
}
return binding.root
}
private fun initializePasswordList() {
swipeRefresher = binding.swipeRefresher
swipeRefresher.setOnRefreshListener {
if (!PasswordRepository.isGitRepo()) {
Snackbar.make(binding.root, getString(R.string.clone_git_repo), Snackbar.LENGTH_SHORT)
.show()
swipeRefresher.isRefreshing = false
} else {
val intent = Intent(context, GitActivity::class.java)
intent.putExtra("Operation", GitActivity.REQUEST_SYNC)
startActivityForResult(intent, GitActivity.REQUEST_SYNC)
}
}
recyclerAdapter = PasswordItemRecyclerAdapter()
.onItemClicked { _, item ->
listener.onFragmentInteraction(item)
}
.onSelectionChanged { selection ->
// In order to not interfere with drag selection, we disable the SwipeRefreshLayout
// once an item is selected.
swipeRefresher.isEnabled = selection.isEmpty
if (actionMode == null)
actionMode = requireStore().startSupportActionMode(actionModeCallback)
?: return@onSelectionChanged
if (!selection.isEmpty) {
actionMode!!.title = resources.getQuantityString(R.plurals.delete_title, selection.size(), selection.size())
actionMode!!.invalidate()
} else {
actionMode!!.finish()
}
}
recyclerView = binding.passRecycler
recyclerView.apply {
layoutManager = LinearLayoutManager(requireContext())
itemAnimator = OnOffItemAnimator()
adapter = recyclerAdapter
}
// FastScrollerBuilder.build() needs to be called *before* recyclerAdapter.makeSelectable(),
// as otherwise dragging the fast scroller will lead to items being selected.
// See https://github.com/zhanghai/AndroidFastScroll/issues/13
FastScrollerBuilder(recyclerView).build()
recyclerAdapter.makeSelectable(recyclerView)
registerForContextMenu(recyclerView)
val path = requireNotNull(requireArguments().getString(PasswordStore.REQUEST_ARG_PATH))
model.navigateTo(File(path), pushPreviousLocation = false)
model.searchResult.observe(this) { result ->
// Only run animations when the new list is filtered, i.e., the user submitted a search,
// and not on folder navigations since the latter leads to too many removal animations.
(recyclerView.itemAnimator as OnOffItemAnimator).isEnabled = result.isFiltered
recyclerAdapter.submitList(result.passwordItems) {
recyclerViewStateToRestore?.let {
recyclerView.layoutManager!!.onRestoreInstanceState(it)
}
recyclerViewStateToRestore = null
}
}
}
override fun onDestroyView() {
_binding = null
super.onDestroyView()
}
private fun toggleFabExpand(fab: FloatingActionButton) = with(fab) {
isExpanded = !isExpanded
isActivated = isExpanded
animate().rotationBy(if (isExpanded) -45f else 45f).setDuration(100).start()
}
private val actionModeCallback = object : ActionMode.Callback {
// Called when the action mode is created; startActionMode() was called
override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
// Inflate a menu resource providing context menu items
mode.menuInflater.inflate(R.menu.context_pass, menu)
// hide the fab
binding.fab.visibility = View.GONE
return true
}
// Called each time the action mode is shown. Always called after onCreateActionMode, but
// may be called multiple times if the mode is invalidated.
override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
menu.findItem(R.id.menu_edit_password).isVisible =
recyclerAdapter.getSelectedItems(requireContext())
.map { it.type == PasswordItem.TYPE_PASSWORD }
.singleOrNull() == true
return true // Return false if nothing is done
}
// Called when the user selects a contextual menu item
override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
when (item.itemId) {
R.id.menu_delete_password -> {
requireStore().deletePasswords(
Stack<PasswordItem>().apply {
recyclerAdapter.getSelectedItems(requireContext()).forEach { push(it) }
}
)
mode.finish() // Action picked, so close the CAB
return true
}
R.id.menu_edit_password -> {
requireStore().editPassword(
recyclerAdapter.getSelectedItems(requireContext()).first()
)
mode.finish()
return true
}
R.id.menu_move_password -> {
requireStore().movePasswords(recyclerAdapter.getSelectedItems(requireContext()))
return false
}
else -> return false
}
}
// Called when the user exits the action mode
override fun onDestroyActionMode(mode: ActionMode) {
recyclerAdapter.requireSelectionTracker().clearSelection()
actionMode = null
// show the fab
binding.fab.visibility = View.VISIBLE
}
}
override fun onAttach(context: Context) {
super.onAttach(context)
try {
listener = object : OnFragmentInteractionListener {
override fun onFragmentInteraction(item: PasswordItem) {
if (item.type == PasswordItem.TYPE_CATEGORY) {
requireStore().clearSearch()
model.navigateTo(
item.file,
recyclerViewState = recyclerView.layoutManager!!.onSaveInstanceState()
)
requireStore().supportActionBar?.setDisplayHomeAsUpEnabled(true)
} else {
if (requireArguments().getBoolean("matchWith", false)) {
requireStore().matchPasswordWithApp(item)
} else {
requireStore().decryptPassword(item)
}
}
}
}
} catch (e: ClassCastException) {
throw ClassCastException("$context must implement OnFragmentInteractionListener")
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
swipeRefresher.isRefreshing = false
}
/**
* Returns true if the back press was handled by the [Fragment].
*/
fun onBackPressedInActivity(): Boolean {
if (!model.canNavigateBack)
return false
// The RecyclerView state is restored when the asynchronous update operation on the
// adapter is completed.
recyclerViewStateToRestore = model.navigateBack()
if (!model.canNavigateBack)
requireStore().supportActionBar?.setDisplayHomeAsUpEnabled(false)
return true
}
val currentDir: File
get() = model.currentDir.value!!
fun dismissActionMode() {
actionMode?.finish()
}
interface OnFragmentInteractionListener {
fun onFragmentInteraction(item: PasswordItem)
}
}
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