forked from GitHub-Mirror/riotX-android
84 lines
3.2 KiB
Kotlin
84 lines
3.2 KiB
Kotlin
/*
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* Copyright 2019 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package im.vector.riotx.features.media
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import androidx.appcompat.app.AppCompatActivity
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import im.vector.matrix.android.api.MatrixCallback
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import im.vector.matrix.android.api.session.Session
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import im.vector.matrix.android.api.session.file.FileService
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import im.vector.matrix.android.internal.crypto.attachments.ElementToDecrypt
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import im.vector.riotx.R
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import im.vector.riotx.core.error.ErrorFormatter
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import im.vector.riotx.core.resources.StringProvider
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import im.vector.riotx.core.utils.*
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import java.io.File
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import javax.inject.Inject
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class MediaDownloadHelper @Inject constructor(private val activity: AppCompatActivity,
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private val session: Session,
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private val stringProvider: StringProvider,
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private val errorFormatter: ErrorFormatter) {
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private data class PendingData(
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val id: String,
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val filename: String,
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val url: String,
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val elementToDecrypt: ElementToDecrypt?
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)
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private var pendingData: PendingData? = null
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fun checkPermissionAndDownload(id: String, filename: String, url: String?, elementToDecrypt: ElementToDecrypt?) {
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if (url.isNullOrEmpty()) {
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activity.toast(stringProvider.getString(R.string.unexpected_error))
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} else if (checkPermissions(PERMISSIONS_FOR_WRITING_FILES, activity, PERMISSION_REQUEST_CODE_DOWNLOAD_FILE)) {
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downloadFile(id, filename, url, elementToDecrypt)
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} else {
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pendingData = PendingData(id, filename, url, elementToDecrypt)
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}
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}
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fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
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if (allGranted(grantResults) && requestCode == PERMISSION_REQUEST_CODE_DOWNLOAD_FILE) {
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pendingData?.also {
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downloadFile(it.id, it.filename, it.url, it.elementToDecrypt)
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}
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}
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}
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private fun downloadFile(id: String, filename: String, url: String, elementToDecrypt: ElementToDecrypt?) {
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session.downloadFile(
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FileService.DownloadMode.TO_EXPORT,
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id,
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filename,
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url,
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elementToDecrypt,
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object : MatrixCallback<File> {
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override fun onSuccess(data: File) {
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activity.toast(stringProvider.getString(R.string.downloaded_file, data.path))
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}
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override fun onFailure(failure: Throwable) {
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activity.toast(errorFormatter.toHumanReadable(failure))
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}
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})
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}
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} |