android/app/src/main/java/com/owncloud/android/ui/fragment/OCFileListSearchAsyncTask.kt

97 lines
3.7 KiB
Kotlin

/*
* Nextcloud Android client application
*
* @author Álvaro Brey Vilas
* Copyright (C) 2022 Álvaro Brey Vilas
* Copyright (C) 2022 Nextcloud GmbH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.owncloud.android.ui.fragment
import android.os.AsyncTask
import android.os.Handler
import android.os.Looper
import com.nextcloud.client.account.User
import com.owncloud.android.datamodel.FileDataStorageManager
import com.owncloud.android.lib.common.operations.RemoteOperation
import com.owncloud.android.lib.common.operations.RemoteOperationResult
import com.owncloud.android.ui.events.SearchEvent
import java.lang.ref.WeakReference
class OCFileListSearchAsyncTask(
containerActivity: FileFragment.ContainerActivity,
fragment: OCFileListFragment,
private val remoteOperation: RemoteOperation<List<Any>>,
private val currentUser: User,
private val event: SearchEvent
) : AsyncTask<Void, Void, Boolean>() {
private val activityReference: WeakReference<FileFragment.ContainerActivity> = WeakReference(containerActivity)
private val fragmentReference: WeakReference<OCFileListFragment> = WeakReference(fragment)
private val fileDataStorageManager: FileDataStorageManager?
get() = activityReference.get()?.storageManager
private fun RemoteOperationResult<out Any>.hasSuccessfulResult() = this.isSuccess && this.resultData != null
override fun onPreExecute() {
fragmentReference.get()?.let { fragment ->
Handler(Looper.getMainLooper()).post {
fragment.isLoading = true
fragment.setEmptyListLoadingMessage()
}
}
}
override fun doInBackground(vararg voids: Void): Boolean {
val fragment = fragmentReference.get()
if (fragment?.context == null || isCancelled) {
return java.lang.Boolean.FALSE
}
fragment.setTitle()
lateinit var remoteOperationResult: RemoteOperationResult<List<Any>>
try {
remoteOperationResult = remoteOperation.execute(currentUser, fragment.context)
} catch (e: UnsupportedOperationException) {
remoteOperationResult = remoteOperation.executeNextcloudClient(currentUser, fragment.requireContext())
}
if (remoteOperationResult.hasSuccessfulResult() && !isCancelled && fragment.searchFragment) {
fragment.searchEvent = event
if (remoteOperationResult.resultData.isNullOrEmpty()) {
fragment.setEmptyView(event)
} else {
fragment.adapter.setData(
remoteOperationResult.resultData,
fragment.currentSearchType,
fileDataStorageManager,
fragment.mFile,
true
)
}
}
return remoteOperationResult.isSuccess
}
override fun onPostExecute(bool: Boolean) {
fragmentReference.get()?.let { fragment ->
fragment.isLoading = false
if (!isCancelled) {
fragment.adapter.notifyDataSetChanged()
}
}
}
}