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Prevent leading and trailing whitespace in group names.

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This commit is contained in:
Alan Evans
2020-07-23 12:25:37 -03:00
committed by Greyson Parrelli
parent 9c54e39eae
commit ab76112f5f
4 changed files with 97 additions and 12 deletions
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16
app/src/main/java/org/thoughtcrime/securesms/profiles/edit/EditProfileViewModel.java
View File

@@ -13,7 +13,7 @@ import androidx.lifecycle.ViewModelProvider;
import org.thoughtcrime.securesms.groups.GroupId;
import org.thoughtcrime.securesms.profiles.ProfileName;
import org.thoughtcrime.securesms.util.StringUtil;
import org.thoughtcrime.securesms.util.livedata.LiveDataPair;
import org.thoughtcrime.securesms.util.livedata.LiveDataUtil;
import org.whispersystems.libsignal.util.guava.Optional;
import java.util.Objects;
@@ -22,19 +22,20 @@ class EditProfileViewModel extends ViewModel {
private final MutableLiveData<String> givenName = new MutableLiveData<>();
private final MutableLiveData<String> familyName = new MutableLiveData<>();
private final LiveData<ProfileName> internalProfileName = Transformations.map(new LiveDataPair<>(givenName, familyName),
pair -> ProfileName.fromParts(pair.first(), pair.second()));
private final LiveData<String> trimmedGivenName = Transformations.map(givenName, StringUtil::trimToVisualBounds);
private final LiveData<String> trimmedFamilyName = Transformations.map(familyName, StringUtil::trimToVisualBounds);
private final LiveData<ProfileName> internalProfileName = LiveDataUtil.combineLatest(trimmedGivenName, trimmedFamilyName, ProfileName::fromParts);
private final MutableLiveData<byte[]> internalAvatar = new MutableLiveData<>();
private final MutableLiveData<byte[]> originalAvatar = new MutableLiveData<>();
private final MutableLiveData<Optional<String>> internalUsername = new MutableLiveData<>();
private final MutableLiveData<String> originalDisplayName = new MutableLiveData<>();
private final LiveData<Boolean> isFormValid = Transformations.map(givenName, name -> !StringUtil.isVisuallyEmpty(name));
private final LiveData<Boolean> isFormValid = Transformations.map(trimmedGivenName, s -> s.length() > 0);
private final EditProfileRepository repository;
private final GroupId groupId;
private EditProfileViewModel(@NonNull EditProfileRepository repository, boolean hasInstanceState, @Nullable GroupId groupId) {
this.repository = repository;
this.groupId = groupId;
this.repository = repository;
this.groupId = groupId;
repository.getCurrentUsername(internalUsername::postValue);
@@ -141,9 +142,8 @@ class EditProfileViewModel extends ViewModel {
this.groupId = groupId;
}
@NonNull
@Override
public <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
public @NonNull <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
//noinspection unchecked
return (T) new EditProfileViewModel(repository, hasInstanceState, groupId);
}

37
app/src/main/java/org/thoughtcrime/securesms/util/StringUtil.java
View File

@@ -45,13 +45,44 @@ public final class StringUtil {
return true;
}
for (int i = 0; i < value.length(); i++) {
return indexOfFirstNonEmptyChar(value) == -1;
}
/**
* @return String without any leading or trailing whitespace.
* Accounts for various unicode whitespace characters.
*/
public static String trimToVisualBounds(@NonNull String value) {
int start = indexOfFirstNonEmptyChar(value);
if (start == -1) {
return "";
}
int end = indexOfLastNonEmptyChar(value);
return value.substring(start, end + 1);
}
private static int indexOfFirstNonEmptyChar(@NonNull String value) {
int length = value.length();
for (int i = 0; i < length; i++) {
if (!isVisuallyEmpty(value.charAt(i))) {
return false;
return i;
}
}
return true;
return -1;
}
private static int indexOfLastNonEmptyChar(@NonNull String value) {
for (int i = value.length() - 1; i >= 0; i--) {
if (!isVisuallyEmpty(value.charAt(i))) {
return i;
}
}
return -1;
}
/**