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/* Copyright 2018 Conny Duck
*
* This file is a part of Tusky.
*
* 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.
*
* Tusky 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 Tusky; if not,
* see <http://www.gnu.org/licenses>. */
package com.keylesspalace.tusky
import android.content.Intent
import android.os.Bundle
import android.view.View
import android.widget.LinearLayout
import android.widget.Toast
import androidx.annotation.VisibleForTesting
import androidx.lifecycle.Lifecycle
import com.google.android.material.bottomsheet.BottomSheetBehavior
import com.keylesspalace.tusky.components.chat.ChatActivity
import com.keylesspalace.tusky.entity.Chat
import com.keylesspalace.tusky.network.MastodonApi
import com.keylesspalace.tusky.util.LinkHelper
import com.uber.autodispose.android.lifecycle.AndroidLifecycleScopeProvider
import com.uber.autodispose.autoDispose
import io.reactivex.android.schedulers.AndroidSchedulers
import java.net.URI
import java.net.URISyntaxException
import javax.inject.Inject
/** this is the base class for all activities that open links
* links are checked against the api if they are mastodon links so they can be openend in Tusky
* Subclasses must have a bottom sheet with Id item_status_bottom_sheet in their layout hierachy
*/
abstract class BottomSheetActivity : BaseActivity() {
lateinit var bottomSheet: BottomSheetBehavior<LinearLayout>
var searchUrl: String? = null
@Inject
lateinit var mastodonApi: MastodonApi
override fun onPostCreate(savedInstanceState: Bundle?) {
super.onPostCreate(savedInstanceState)
val bottomSheetLayout: LinearLayout = findViewById(R.id.item_status_bottom_sheet)
bottomSheet = BottomSheetBehavior.from(bottomSheetLayout)
bottomSheet.state = BottomSheetBehavior.STATE_HIDDEN
bottomSheet.addBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback() {
override fun onStateChanged(bottomSheet: View, newState: Int) {
if (newState == BottomSheetBehavior.STATE_HIDDEN) {
cancelActiveSearch()
}
}
override fun onSlide(bottomSheet: View, slideOffset: Float) {}
})
}
open fun viewUrl(url: String, lookupFallbackBehavior: PostLookupFallbackBehavior = PostLookupFallbackBehavior.OPEN_IN_BROWSER) {
if (!looksLikeMastodonUrl(url)) {
openLink(url)
return
}
mastodonApi.searchObservable(
query = url,
resolve = true
).observeOn(AndroidSchedulers.mainThread())
.autoDispose(AndroidLifecycleScopeProvider.from(this, Lifecycle.Event.ON_DESTROY))
.subscribe({ (accounts, statuses) ->
if (getCancelSearchRequested(url)) {
return@subscribe
}
onEndSearch(url)
if (accounts.isNotEmpty()) {
// HACKHACK: Pleroma, remove when search will work normally
if (accounts[0].pleroma != null) {
val account = accounts.firstOrNull { it.pleroma?.apId == url || it.url == url }
if (account != null) {
viewAccount(account.id)
return@subscribe
}
} else {
viewAccount(accounts[0].id)
return@subscribe
}
}
if (statuses.isNotEmpty()) {
viewThread(statuses[0].id, statuses[0].url)
return@subscribe
}
performUrlFallbackAction(url, lookupFallbackBehavior)
}, {
if (!getCancelSearchRequested(url)) {
onEndSearch(url)
performUrlFallbackAction(url, lookupFallbackBehavior)
}
})
onBeginSearch(url)
}
open fun viewThread(statusId: String, url: String?) {
if (!isSearching()) {
val intent = ViewThreadActivity.startIntent(this, statusId, url)
startActivityWithSlideInAnimation(intent)
}
}
open fun viewAccount(id: String) {
val intent = AccountActivity.getIntent(this, id)
startActivityWithSlideInAnimation(intent)
}
open fun openChat(chat: Chat) {
startActivityWithSlideInAnimation(ChatActivity.getIntent(this, chat))
}
protected open fun performUrlFallbackAction(url: String, fallbackBehavior: PostLookupFallbackBehavior) {
when (fallbackBehavior) {
PostLookupFallbackBehavior.OPEN_IN_BROWSER -> openLink(url)
PostLookupFallbackBehavior.DISPLAY_ERROR -> Toast.makeText(this, getString(R.string.post_lookup_error_format, url), Toast.LENGTH_SHORT).show()
}
}
@VisibleForTesting
fun onBeginSearch(url: String) {
searchUrl = url
showQuerySheet()
}
@VisibleForTesting
fun getCancelSearchRequested(url: String): Boolean {
return url != searchUrl
}
@VisibleForTesting
fun isSearching(): Boolean {
return searchUrl != null
}
@VisibleForTesting
fun onEndSearch(url: String?) {
if (url == searchUrl) {
// Don't clear query if there's no match,
// since we might just now be getting the response for a canceled search
searchUrl = null
hideQuerySheet()
}
}
@VisibleForTesting
fun cancelActiveSearch() {
if (isSearching()) {
onEndSearch(searchUrl)
}
}
@VisibleForTesting
open fun openLink(url: String) {
LinkHelper.openLink(url, this)
}
private fun showQuerySheet() {
bottomSheet.state = BottomSheetBehavior.STATE_COLLAPSED
}
private fun hideQuerySheet() {
bottomSheet.state = BottomSheetBehavior.STATE_HIDDEN
}
}
// https://mastodon.foo.bar/@User
// https://mastodon.foo.bar/@User/43456787654678
// https://pleroma.foo.bar/users/User
// https://pleroma.foo.bar/users/9qTHT2ANWUdXzENqC0
// https://pleroma.foo.bar/notice/9sBHWIlwwGZi5QGlHc
// https://pleroma.foo.bar/objects/d4643c42-3ae0-4b73-b8b0-c725f5819207
// https://friendica.foo.bar/profile/user
// https://friendica.foo.bar/display/d4643c42-3ae0-4b73-b8b0-c725f5819207
// https://misskey.foo.bar/notes/83w6r388br (always lowercase)
fun looksLikeMastodonUrl(urlString: String): Boolean {
val uri: URI
try {
uri = URI(urlString)
} catch (e: URISyntaxException) {
return false
}
if (uri.query != null ||
uri.fragment != null ||
uri.path == null) {
return false
}
val path = uri.path
return path.matches("^/@[^/]+$".toRegex()) ||
path.matches("^/@[^/]+/\\d+$".toRegex()) ||
path.matches("^/users/\\w+$".toRegex()) ||
path.matches("^/notice/[a-zA-Z0-9]+$".toRegex()) ||
path.matches("^/objects/[-a-f0-9]+$".toRegex()) ||
path.matches("^/notes/[a-z0-9]+$".toRegex()) ||
path.matches("^/display/[-a-f0-9]+$".toRegex()) ||
path.matches("^/profile/\\w+$".toRegex())
}
enum class PostLookupFallbackBehavior {
OPEN_IN_BROWSER,
DISPLAY_ERROR,
}