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Code Issues Releases Wiki Activity

Editing profile: No change warning on leave. (#3972) 

### Objective
* Prevent data loss when the user inadvertently hits back or wants to
leave the profile edition with unsaved changes.

### Description
* To limit the number of changes to the existing codebase, I merely
re-used the same method used by `save()` in the ViewModel to decide
whether to make a network request or simply return the profile as-is.
* ~A bit of code juggling around in the ViewModel and I was able to use
the logic for all the encoding of each profile field (Which is what the
ViewModel caches in memory).~ Thanks @Lakoja for improving this in the
VM.
* A couple of internal data classes used as helpers to move all the
fields around (now that they are no longer used in one single place)
were introduced.

### Potential Optimizations
* ~The profile encoding is done twice (once for checking, and then again
if the user has to actually save it). I'd say this is a negligible price
to pay, since the alternative would be to create a different set of
comparisons and/or keeping another profile in memory for the purpose of
comparison.~

### Visual Improvement
* I believe the Dialog is difficult to see, but it's being displayed
with Tusky's theme. Perhaps there's a better style to apply in this
case? (or maybe the edit profile activity shouldn't have the same
background color as dialogs?!)


### Issue
* #3486
This commit is contained in:
Levi Bard 2023-08-28 14:13:24 +02:00 committed by GitHub
parent 5764efa5d4 780dae00a6
commit 10a6b1616a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 153 additions and 74 deletions
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54
app/src/main/java/com/keylesspalace/tusky/EditProfileActivity.kt
View File

@ -25,7 +25,9 @@ import android.view.Menu
import android.view.MenuItem
import android.view.View
import android.widget.ImageView
import androidx.activity.OnBackPressedCallback
import androidx.activity.viewModels
import androidx.appcompat.app.AlertDialog
import androidx.core.view.isVisible
import androidx.lifecycle.LiveData
import androidx.lifecycle.lifecycleScope
@ -46,9 +48,11 @@ import com.keylesspalace.tusky.di.ViewModelFactory
import com.keylesspalace.tusky.util.Error
import com.keylesspalace.tusky.util.Loading
import com.keylesspalace.tusky.util.Success
import com.keylesspalace.tusky.util.await
import com.keylesspalace.tusky.util.show
import com.keylesspalace.tusky.util.viewBinding
import com.keylesspalace.tusky.viewmodel.EditProfileViewModel
import com.keylesspalace.tusky.viewmodel.ProfileDataInUi
import com.mikepenz.iconics.IconicsDrawable
import com.mikepenz.iconics.typeface.library.googlematerial.GoogleMaterial
import com.mikepenz.iconics.utils.colorInt
@ -96,6 +100,14 @@ class EditProfileActivity : BaseActivity(), Injectable {
}
}
private val currentProfileData
get() = ProfileDataInUi(
displayName = binding.displayNameEditText.text.toString(),
note = binding.noteEditText.text.toString(),
locked = binding.lockedCheckBox.isChecked,
fields = accountFieldEditAdapter.getFieldData()
)
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
@ -200,17 +212,26 @@ class EditProfileActivity : BaseActivity(), Injectable {
}
}
}
val onBackCallback = object : OnBackPressedCallback(enabled = true) {
override fun handleOnBackPressed() = checkForUnsavedChanges()
}
onBackPressedDispatcher.addCallback(this, onBackCallback)
}
fun checkForUnsavedChanges() {
if (viewModel.hasUnsavedChanges(currentProfileData)) {
showUnsavedChangesDialog()
} else {
finish()
}
}
override fun onStop() {
super.onStop()
if (!isFinishing) {
viewModel.updateProfile(
binding.displayNameEditText.text.toString(),
binding.noteEditText.text.toString(),
binding.lockedCheckBox.isChecked,
accountFieldEditAdapter.getFieldData()
)
viewModel.updateProfile(currentProfileData)
}
}
@ -287,14 +308,7 @@ class EditProfileActivity : BaseActivity(), Injectable {
return super.onOptionsItemSelected(item)
}
private fun save() {
viewModel.save(
binding.displayNameEditText.text.toString(),
binding.noteEditText.text.toString(),
binding.lockedCheckBox.isChecked,
accountFieldEditAdapter.getFieldData()
)
}
private fun save() = viewModel.save(currentProfileData)
private fun onSaveFailure(msg: String?) {
val errorMsg = msg ?: getString(R.string.error_media_upload_sending)
@ -306,4 +320,16 @@ class EditProfileActivity : BaseActivity(), Injectable {
Log.w("EditProfileActivity", "failed to pick media", throwable)
Snackbar.make(binding.avatarButton, R.string.error_media_upload_sending, Snackbar.LENGTH_LONG).show()
}
private fun showUnsavedChangesDialog() = lifecycleScope.launch {
when (launchSaveDialog()) {
AlertDialog.BUTTON_POSITIVE -> save()
else -> finish()
}
}
private suspend fun launchSaveDialog() = AlertDialog.Builder(this)
.setMessage(getString(R.string.dialog_save_profile_changes_message))
.create()
.await(R.string.action_save, R.string.action_discard)
}

172
app/src/main/java/com/keylesspalace/tusky/viewmodel/EditProfileViewModel.kt
View File

@ -42,7 +42,6 @@ import kotlinx.coroutines.flow.shareIn
import kotlinx.coroutines.launch
import okhttp3.MediaType.Companion.toMediaTypeOrNull
import okhttp3.MultipartBody
import okhttp3.RequestBody
import okhttp3.RequestBody.Companion.asRequestBody
import okhttp3.RequestBody.Companion.toRequestBody
import java.io.File
@ -51,6 +50,13 @@ import javax.inject.Inject
private const val HEADER_FILE_NAME = "header.png"
private const val AVATAR_FILE_NAME = "avatar.png"
internal data class ProfileDataInUi(
val displayName: String,
val note: String,
val locked: Boolean,
val fields: List<StringField>
)
class EditProfileViewModel @Inject constructor(
private val mastodonApi: MastodonApi,
private val eventHub: EventHub,
@ -66,7 +72,7 @@ class EditProfileViewModel @Inject constructor(
val instanceData: Flow<InstanceInfo> = instanceInfoRepo::getInstanceInfo.asFlow()
.shareIn(viewModelScope, SharingStarted.Eagerly, replay = 1)
private var oldProfileData: Account? = null
private var apiProfileAccount: Account? = null
fun obtainProfile() = viewModelScope.launch {
if (profileData.value == null || profileData.value is Error) {
@ -74,7 +80,7 @@ class EditProfileViewModel @Inject constructor(
mastodonApi.accountVerifyCredentials().fold(
{ profile ->
oldProfileData = profile
apiProfileAccount = profile
profileData.postValue(Success(profile))
},
{
@ -96,68 +102,49 @@ class EditProfileViewModel @Inject constructor(
headerData.value = getHeaderUri()
}
fun save(newDisplayName: String, newNote: String, newLocked: Boolean, newFields: List<StringField>) {
internal fun save(newProfileData: ProfileDataInUi) {
if (saveData.value is Loading || profileData.value !is Success) {
return
}
saveData.value = Loading()
val displayName = if (oldProfileData?.displayName == newDisplayName) {
null
} else {
newDisplayName.toRequestBody(MultipartBody.FORM)
}
val note = if (oldProfileData?.source?.note == newNote) {
null
} else {
newNote.toRequestBody(MultipartBody.FORM)
}
val locked = if (oldProfileData?.locked == newLocked) {
null
} else {
newLocked.toString().toRequestBody(MultipartBody.FORM)
}
val avatar = if (avatarData.value != null) {
val avatarBody = getCacheFileForName(AVATAR_FILE_NAME).asRequestBody("image/png".toMediaTypeOrNull())
MultipartBody.Part.createFormData("avatar", randomAlphanumericString(12), avatarBody)
} else {
null
}
val header = if (headerData.value != null) {
val headerBody = getCacheFileForName(HEADER_FILE_NAME).asRequestBody("image/png".toMediaTypeOrNull())
MultipartBody.Part.createFormData("header", randomAlphanumericString(12), headerBody)
} else {
null
}
// when one field changed, all have to be sent or they unchanged ones would get overridden
val fieldsUnchanged = oldProfileData?.source?.fields == newFields
val field1 = calculateFieldToUpdate(newFields.getOrNull(0), fieldsUnchanged)
val field2 = calculateFieldToUpdate(newFields.getOrNull(1), fieldsUnchanged)
val field3 = calculateFieldToUpdate(newFields.getOrNull(2), fieldsUnchanged)
val field4 = calculateFieldToUpdate(newFields.getOrNull(3), fieldsUnchanged)
if (displayName == null && note == null && locked == null && avatar == null && header == null &&
field1 == null && field2 == null && field3 == null && field4 == null
) {
/** if nothing has changed, there is no need to make a network request */
saveData.postValue(Success())
val diff = getProfileDiff(apiProfileAccount, newProfileData)
if (!diff.hasChanges()) {
// if nothing has changed, there is no need to make an api call
saveData.value = Success()
return
}
viewModelScope.launch {
var avatarFileBody: MultipartBody.Part? = null
diff.avatarFile?.let {
avatarFileBody = MultipartBody.Part.createFormData("avatar", randomAlphanumericString(12), it.asRequestBody("image/png".toMediaTypeOrNull()))
}
var headerFileBody: MultipartBody.Part? = null
diff.headerFile?.let {
headerFileBody = MultipartBody.Part.createFormData("header", randomAlphanumericString(12), it.asRequestBody("image/png".toMediaTypeOrNull()))
}
mastodonApi.accountUpdateCredentials(
displayName, note, locked, avatar, header,
field1?.first, field1?.second, field2?.first, field2?.second, field3?.first, field3?.second, field4?.first, field4?.second
diff.displayName?.toRequestBody(MultipartBody.FORM),
diff.note?.toRequestBody(MultipartBody.FORM),
diff.locked?.toString()?.toRequestBody(MultipartBody.FORM),
avatarFileBody,
headerFileBody,
diff.field1?.first?.toRequestBody(MultipartBody.FORM),
diff.field1?.second?.toRequestBody(MultipartBody.FORM),
diff.field2?.first?.toRequestBody(MultipartBody.FORM),
diff.field2?.second?.toRequestBody(MultipartBody.FORM),
diff.field3?.first?.toRequestBody(MultipartBody.FORM),
diff.field3?.second?.toRequestBody(MultipartBody.FORM),
diff.field4?.first?.toRequestBody(MultipartBody.FORM),
diff.field4?.second?.toRequestBody(MultipartBody.FORM)
).fold(
{ newProfileData ->
{ newAccountData ->
saveData.postValue(Success())
eventHub.dispatch(ProfileEditedEvent(newProfileData))
eventHub.dispatch(ProfileEditedEvent(newAccountData))
},
{ throwable ->
saveData.postValue(Error(errorMessage = throwable.getServerErrorMessage()))
@ -167,30 +154,95 @@ class EditProfileViewModel @Inject constructor(
}
// cache activity state for rotation change
fun updateProfile(newDisplayName: String, newNote: String, newLocked: Boolean, newFields: List<StringField>) {
internal fun updateProfile(newProfileData: ProfileDataInUi) {
if (profileData.value is Success) {
val newProfileSource = profileData.value?.data?.source?.copy(note = newNote, fields = newFields)
val newProfileSource = profileData.value?.data?.source?.copy(note = newProfileData.note, fields = newProfileData.fields)
val newProfile = profileData.value?.data?.copy(
displayName = newDisplayName,
locked = newLocked,
displayName = newProfileData.displayName,
locked = newProfileData.locked,
source = newProfileSource
)
profileData.postValue(Success(newProfile))
profileData.value = Success(newProfile)
}
}
private fun calculateFieldToUpdate(newField: StringField?, fieldsUnchanged: Boolean): Pair<RequestBody, RequestBody>? {
internal fun hasUnsavedChanges(newProfileData: ProfileDataInUi): Boolean {
val diff = getProfileDiff(apiProfileAccount, newProfileData)
return diff.hasChanges()
}
private fun getProfileDiff(oldProfileAccount: Account?, newProfileData: ProfileDataInUi): DiffProfileData {
val displayName = if (oldProfileAccount?.displayName == newProfileData.displayName) {
null
} else {
newProfileData.displayName
}
val note = if (oldProfileAccount?.source?.note == newProfileData.note) {
null
} else {
newProfileData.note
}
val locked = if (oldProfileAccount?.locked == newProfileData.locked) {
null
} else {
newProfileData.locked
}
val avatarFile = if (avatarData.value != null) {
getCacheFileForName(AVATAR_FILE_NAME)
} else {
null
}
val headerFile = if (headerData.value != null) {
getCacheFileForName(HEADER_FILE_NAME)
} else {
null
}
// when one field changed, all have to be sent or they unchanged ones would get overridden
val allFieldsUnchanged = oldProfileAccount?.source?.fields == newProfileData.fields
val field1 = calculateFieldToUpdate(newProfileData.fields.getOrNull(0), allFieldsUnchanged)
val field2 = calculateFieldToUpdate(newProfileData.fields.getOrNull(1), allFieldsUnchanged)
val field3 = calculateFieldToUpdate(newProfileData.fields.getOrNull(2), allFieldsUnchanged)
val field4 = calculateFieldToUpdate(newProfileData.fields.getOrNull(3), allFieldsUnchanged)
return DiffProfileData(
displayName, note, locked, field1, field2, field3, field4, headerFile, avatarFile
)
}
private fun calculateFieldToUpdate(newField: StringField?, fieldsUnchanged: Boolean): Pair<String, String>? {
if (fieldsUnchanged || newField == null) {
return null
}
return Pair(
newField.name.toRequestBody(MultipartBody.FORM),
newField.value.toRequestBody(MultipartBody.FORM)
newField.name,
newField.value
)
}
private fun getCacheFileForName(filename: String): File {
return File(application.cacheDir, filename)
}
private data class DiffProfileData(
val displayName: String?,
val note: String?,
val locked: Boolean?,
val field1: Pair<String, String>?,
val field2: Pair<String, String>?,
val field3: Pair<String, String>?,
val field4: Pair<String, String>?,
val headerFile: File?,
val avatarFile: File?
) {
fun hasChanges() = displayName != null || note != null || locked != null ||
avatarFile != null || headerFile != null || field1 != null || field2 != null ||
field3 != null || field4 != null
}
}

1
app/src/main/res/values/strings.xml
View File

@ -819,4 +819,5 @@
<string name="error_media_playback">Playback failed: %s</string>
<string name="dialog_delete_filter_text">Delete filter \'%1$s\'?"</string>
<string name="dialog_delete_filter_positive_action">Delete</string>
<string name="dialog_save_profile_changes_message">Do you want to save your profile changes?</string>
</resources>