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Fixed reporting backspace key if there is no text in the edit buffer (thanks @312937!)

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This workaround isn't necessary at API 30 and above.

Fixes https://github.com/libsdl-org/SDL/issues/7039

(cherry picked from commit c971795954bc85086cd20cfc71b45a311b7ba0d1)
This commit is contained in:
Sam Lantinga 2023-05-22 11:54:46 -07:00
parent 0ad0347acb
commit b6d051e226
1 changed files with 12 additions and 0 deletions
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12
android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
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@ -2007,6 +2007,18 @@ class SDLInputConnection extends BaseInputConnection {
@Override @Override
public boolean deleteSurroundingText(int beforeLength, int afterLength) { public boolean deleteSurroundingText(int beforeLength, int afterLength) {
if (Build.VERSION.SDK_INT <= 29) {
// Workaround to capture backspace key. Ref: http://stackoverflow.com/questions>/14560344/android-backspace-in-webview-baseinputconnection
// and https://bugzilla.libsdl.org/show_bug.cgi?id=2265
if (beforeLength > 0 && afterLength == 0) {
// backspace(s)
while (beforeLength-- > 0) {
nativeGenerateScancodeForUnichar('\b');
}
return true;
}
}
if (!super.deleteSurroundingText(beforeLength, afterLength)) { if (!super.deleteSurroundingText(beforeLength, afterLength)) {
return false; return false;
} }