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/*
* Copyright 2018 Allan Wang
*
* 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 ca.allanwang.kau.mediapicker
import android.database.Cursor
import android.os.Bundle
import androidx.loader.content.Loader
import androidx.recyclerview.widget.LinearLayoutManager
import ca.allanwang.kau.adapters.selectedItems
import ca.allanwang.kau.adapters.selectionSize
import ca.allanwang.kau.mediapicker.databinding.KauActivityImagePickerBinding
import ca.allanwang.kau.utils.hideOnDownwardsScroll
import ca.allanwang.kau.utils.setIcon
import ca.allanwang.kau.utils.toDrawable
import ca.allanwang.kau.utils.toast
import com.google.android.material.appbar.AppBarLayout
import com.mikepenz.fastadapter.ISelectionListener
import com.mikepenz.fastadapter.select.selectExtension
import com.mikepenz.iconics.typeface.library.googlematerial.GoogleMaterial
/**
* Created by Allan Wang on 2017-07-04.
*
* Base activity for selecting images from storage
* Images are blurred when selected, and multiple images can be selected at a time.
* Having three layered images makes this slightly slower than [MediaPickerActivityOverlayBase]
*/
abstract class MediaPickerActivityBase(
mediaType: MediaType,
mediaActions: List<MediaAction> = emptyList()
) : MediaPickerCore<MediaItem>(mediaType, mediaActions) {
private lateinit var binding: KauActivityImagePickerBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = KauActivityImagePickerBinding.inflate(layoutInflater)
setContentView(binding.root)
binding.init()
}
private fun KauActivityImagePickerBinding.init() {
kauSelectionCount.setCompoundDrawables(
null,
null,
GoogleMaterial.Icon.gmd_image.toDrawable(this@MediaPickerActivityBase, 18),
null
)
setSupportActionBar(kauToolbar)
supportActionBar?.apply {
setDisplayHomeAsUpEnabled(true)
setDisplayShowHomeEnabled(true)
setHomeAsUpIndicator(
GoogleMaterial.Icon.gmd_close.toDrawable(
this@MediaPickerActivityBase,
18
)
)
}
kauToolbar.setNavigationOnClickListener { onBackPressed() }
initializeRecycler(kauRecyclerview)
adapter.fastAdapter!!.let {
MediaItem.bindEvents(it)
it.selectExtension {
selectionListener = object : ISelectionListener<MediaItem> {
override fun onSelectionChanged(item: MediaItem, selected: Boolean) {
kauSelectionCount.text = adapter.selectionSize.toString()
}
}
}
}
kauFab.apply {
show()
setIcon(GoogleMaterial.Icon.gmd_send)
setOnClickListener {
val selection = adapter.selectedItems
if (selection.isEmpty()) {
toast(R.string.kau_no_items_selected)
} else {
finish(ArrayList(selection.map { it.data }))
}
}
hideOnDownwardsScroll(kauRecyclerview)
}
loadItems()
}
override fun converter(model: MediaModel): MediaItem = MediaItem(model)
/**
* Decide whether the toolbar can hide itself
* We typically want this behaviour unless we don't have enough images
* to fill the entire screen. In that case we don't want the recyclerview to be scrollable
* which means the toolbar shouldn't scroll either
* @param scrollable true if scroll flags are enabled, false otherwise
*/
private fun KauActivityImagePickerBinding.setToolbarScrollable(scrollable: Boolean) {
val params = kauToolbar.layoutParams as AppBarLayout.LayoutParams
if (scrollable) {
params.scrollFlags = AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS or
AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL
} else {
params.scrollFlags = 0
}
}
override fun onLoadFinished(loader: Loader<Cursor>, data: Cursor?) {
super.onLoadFinished(loader, data)
binding.setToolbarScrollable(
(binding.kauRecyclerview.layoutManager as LinearLayoutManager)
.findLastCompletelyVisibleItemPosition() < adapter.adapterItemCount - 1
)
}
override fun onStatusChange(loaded: Boolean) {
binding.setToolbarScrollable(loaded)
}
}
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