240 lines
9.2 KiB
Kotlin
240 lines
9.2 KiB
Kotlin
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/* Copyright 2017 Andrew Dawson
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky
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import android.animation.Animator
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import android.animation.AnimatorListenerAdapter
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import android.content.Context
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import android.content.Intent
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import android.content.pm.PackageManager
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import android.graphics.Bitmap
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import android.graphics.Color
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import android.graphics.drawable.Drawable
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import android.net.Uri
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import android.os.Bundle
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import android.support.v4.content.FileProvider
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import android.support.v4.view.ViewPager
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import android.util.Log
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import android.view.Menu
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import android.view.MenuItem
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import android.view.View
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import com.keylesspalace.tusky.BuildConfig.APPLICATION_ID
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import com.keylesspalace.tusky.fragment.ViewMediaFragment
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import com.keylesspalace.tusky.pager.AvatarImagePagerAdapter
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import com.keylesspalace.tusky.pager.ImagePagerAdapter
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import com.keylesspalace.tusky.util.CollectionUtil.map
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import com.keylesspalace.tusky.util.getTemporaryMediaFilename
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import com.keylesspalace.tusky.viewdata.AttachmentViewData
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import com.squareup.picasso.Picasso
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import com.squareup.picasso.Target
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import kotlinx.android.synthetic.main.activity_view_media.*
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import java.io.File
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import java.io.FileNotFoundException
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import java.io.FileOutputStream
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import java.io.IOException
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import java.util.ArrayList
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class ViewMediaActivity : BaseActivity(), ViewMediaFragment.PhotoActionsListener {
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companion object {
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private const val EXTRA_ATTACHMENTS = "attachments"
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private const val EXTRA_ATTACHMENT_INDEX = "index"
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private const val EXTRA_AVATAR_URL = "avatar"
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private const val TAG = "ViewMediaActivity"
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@JvmStatic
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fun newIntent(context: Context?, attachments: List<AttachmentViewData>, index: Int): Intent {
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val intent = Intent(context, ViewMediaActivity::class.java)
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intent.putParcelableArrayListExtra(EXTRA_ATTACHMENTS, ArrayList(attachments))
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intent.putExtra(EXTRA_ATTACHMENT_INDEX, index)
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return intent
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}
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fun newAvatarIntent(context: Context, url: String): Intent {
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val intent = Intent(context, ViewMediaActivity::class.java)
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intent.putExtra(EXTRA_AVATAR_URL, url)
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return intent
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}
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}
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private var attachments: ArrayList<AttachmentViewData>? = null
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private var toolbarVisible = true
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private val toolbarVisibilityListeners = ArrayList<ToolbarVisibilityListener>()
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interface ToolbarVisibilityListener {
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fun onToolbarVisiblityChanged(isVisible: Boolean)
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}
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fun addToolbarVisibilityListener(listener: ToolbarVisibilityListener): Function0<Boolean> {
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this.toolbarVisibilityListeners.add(listener)
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listener.onToolbarVisiblityChanged(toolbarVisible)
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return { toolbarVisibilityListeners.remove(listener) }
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}
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fun isToolbarVisible(): Boolean {
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return toolbarVisible
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}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_view_media)
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supportPostponeEnterTransition()
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// Gather the parameters.
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attachments = intent.getParcelableArrayListExtra(EXTRA_ATTACHMENTS)
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val initialPosition = intent.getIntExtra(EXTRA_ATTACHMENT_INDEX, 0)
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val adapter = if(attachments != null) {
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val realAttachs = map(attachments, AttachmentViewData::attachment)
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// Setup the view pager.
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ImagePagerAdapter(supportFragmentManager, realAttachs, initialPosition)
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} else {
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val avatarUrl = intent.getStringExtra(EXTRA_AVATAR_URL) ?: throw IllegalArgumentException("attachment list or avatar url has to be set")
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AvatarImagePagerAdapter(supportFragmentManager, avatarUrl)
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}
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viewPager.adapter = adapter
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viewPager.currentItem = initialPosition
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viewPager.addOnPageChangeListener(object: ViewPager.OnPageChangeListener {
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override fun onPageSelected(position: Int) {
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toolbar.title = adapter.getPageTitle(position)
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}
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override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {}
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override fun onPageScrollStateChanged(state: Int) {}
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})
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// Setup the toolbar.
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setSupportActionBar(toolbar)
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val actionBar = supportActionBar
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if (actionBar != null) {
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actionBar.setDisplayHomeAsUpEnabled(true)
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actionBar.setDisplayShowHomeEnabled(true)
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actionBar.title = adapter.getPageTitle(initialPosition)
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}
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toolbar.setNavigationOnClickListener { _ -> supportFinishAfterTransition() }
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toolbar.setOnMenuItemClickListener { item: MenuItem ->
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when (item.itemId) {
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R.id.action_download -> downloadImage()
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R.id.action_open_status -> onOpenStatus()
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R.id.action_share_media -> shareImage()
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}
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true
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}
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window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LOW_PROFILE
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window.statusBarColor = Color.BLACK
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}
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override fun onCreateOptionsMenu(menu: Menu): Boolean {
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if(attachments != null) {
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menuInflater.inflate(R.menu.view_media_toolbar, menu)
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return true
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}
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return false
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}
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override fun onBringUp() {
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supportStartPostponedEnterTransition()
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}
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override fun onDismiss() {
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supportFinishAfterTransition()
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}
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override fun onPhotoTap() {
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toolbarVisible = !toolbarVisible
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for (listener in toolbarVisibilityListeners) {
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listener.onToolbarVisiblityChanged(toolbarVisible)
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}
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val visibility = if(toolbarVisible){ View.VISIBLE } else { View.INVISIBLE }
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val alpha = if(toolbarVisible){ 1.0f } else { 0.0f }
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toolbar.animate().alpha(alpha)
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.setListener(object: AnimatorListenerAdapter() {
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override fun onAnimationEnd(animation: Animator) {
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toolbar.visibility = visibility
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animation.removeListener(this)
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}
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})
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.start()
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}
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override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
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when (requestCode) {
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PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE -> {
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if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
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downloadImage()
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} else {
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showErrorDialog(toolbar, R.string.error_media_download_permission, R.string.action_retry) { _ -> downloadImage() }
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}
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}
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}
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}
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private fun downloadImage() {
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downloadFile(attachments!![viewPager.currentItem].attachment.url)
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}
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private fun onOpenStatus() {
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val attach = attachments!![viewPager.currentItem]
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startActivityWithSlideInAnimation(ViewThreadActivity.startIntent(this, attach.statusId, attach.statusUrl))
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}
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private fun shareImage() {
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val directory = applicationContext.getExternalFilesDir("Tusky")
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if (directory == null || !(directory.exists())) {
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Log.e(TAG, "Error obtaining directory to save temporary media.")
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return
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}
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val attachment = attachments!![viewPager.currentItem].attachment
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val context = applicationContext
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val file = File(directory, getTemporaryMediaFilename("png"))
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Picasso.with(context).load(Uri.parse(attachment.url)).into(object: Target {
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override fun onBitmapLoaded(bitmap: Bitmap, from: Picasso.LoadedFrom) {
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try {
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val stream = FileOutputStream(file)
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bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream)
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stream.close()
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} catch (fnfe: FileNotFoundException) {
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Log.e(TAG, "Error writing temporary media.")
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} catch (ioe: IOException) {
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Log.e(TAG, "Error writing temporary media.")
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}
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}
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override fun onBitmapFailed(errorDrawable: Drawable) {
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Log.e(TAG, "Error loading temporary media.")
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}
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override fun onPrepareLoad(placeHolderDrawable: Drawable) { }
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})
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val sendIntent = Intent()
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sendIntent.action = Intent.ACTION_SEND
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sendIntent.putExtra(Intent.EXTRA_STREAM, FileProvider.getUriForFile(context, "$APPLICATION_ID.fileprovider", file))
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sendIntent.type = "image/png"
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startActivity(Intent.createChooser(sendIntent, resources.getText(R.string.send_media_to)))
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}
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}
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