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Fixed backspace being delivered after committed text on Android 12 

Testing:
Enter "hello ", followed by "?" - the events generated are:
: commitText hello
: Key pressed :  scancode 11 = H, keycode 0x00000068 = H  modifiers: (none)
: Key released:  scancode 11 = H, keycode 0x00000068 = H  modifiers: (none)
: Key pressed :  scancode 8 = E, keycode 0x00000065 = E  modifiers: (none)
: Key released:  scancode 8 = E, keycode 0x00000065 = E  modifiers: (none)
: Key pressed :  scancode 15 = L, keycode 0x0000006C = L  modifiers: (none)
: Key released:  scancode 15 = L, keycode 0x0000006C = L  modifiers: (none)
: Key pressed :  scancode 15 = L, keycode 0x0000006C = L  modifiers: (none)
: Key released:  scancode 15 = L, keycode 0x0000006C = L  modifiers: (none)
: Key pressed :  scancode 18 = O, keycode 0x0000006F = O  modifiers: (none)
: Key released:  scancode 18 = O, keycode 0x0000006F = O  modifiers: (none)
: Key pressed :  scancode 44 = Space, keycode 0x00000020 = Space  modifiers: (none)
: Key released:  scancode 44 = Space, keycode 0x00000020 = Space  modifiers: (none)
: INPUT Text (\x68\x65\x6c\x6c\x6f\x20): "hello "
: finishComposingText
: deleteSurroundingText 1 / 0
: Key pressed :  scancode 42 = Backspace, keycode 0x00000008 = Backspace  modifiers: (none)
: Key released:  scancode 42 = Backspace, keycode 0x00000008 = Backspace  modifiers: (none)
: commitText ?
: Key pressed :  scancode 225 = Left Shift, keycode 0x400000E1 = Left Shift  modifiers: LSHIFT
: Key pressed :  scancode 56 = /, keycode 0x0000002F = /  modifiers: (none)
: Key released:  scancode 56 = /, keycode 0x0000002F = /  modifiers: (none)
: Key released:  scancode 225 = Left Shift, keycode 0x400000E1 = Left Shift  modifiers: (none)
: INPUT Text (\x3f): "?"
: setComposingText , at 1
: EDIT Text (): ""

Previously, the backspace would be delivered after the "?"
This commit is contained in:
Sam Lantinga 2022-07-01 08:58:08 -07:00
parent 37a517dc36
commit 7ac5d616f3
2 changed files with 3 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
View File

@ -2390,14 +2390,11 @@ class SDLInputConnection extends BaseInputConnection {
// Workaround to capture backspace key. Ref: http://stackoverflow.com/questions/14560344/android-backspace-in-webview-baseinputconnection // 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 // and https://bugzilla.libsdl.org/show_bug.cgi?id=2265
if (beforeLength > 0 && afterLength == 0) { if (beforeLength > 0 && afterLength == 0) {
boolean ret = true;
// backspace(s) // backspace(s)
while (beforeLength-- > 0) { while (beforeLength-- > 0) {
boolean ret_key = sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL)) nativeGenerateScancodeForUnichar('\b');
&& sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DEL));
ret = ret && ret_key;
} }
return ret; return true;
} }
return super.deleteSurroundingText(beforeLength, afterLength); return super.deleteSurroundingText(beforeLength, afterLength);

2
src/events/scancodes_ascii.h
View File

@ -45,7 +45,7 @@ static ASCIIKeyInfo SDL_ASCIIKeyInfoTable[] = {
/* 5 */ { SDL_SCANCODE_UNKNOWN, 0 }, /* 5 */ { SDL_SCANCODE_UNKNOWN, 0 },
/* 6 */ { SDL_SCANCODE_UNKNOWN, 0 }, /* 6 */ { SDL_SCANCODE_UNKNOWN, 0 },
/* 7 */ { SDL_SCANCODE_UNKNOWN, 0 }, /* 7 */ { SDL_SCANCODE_UNKNOWN, 0 },
/* 8 */ { SDL_SCANCODE_UNKNOWN, 0 }, /* 8 */ { SDL_SCANCODE_BACKSPACE, 0 },
/* 9 */ { SDL_SCANCODE_UNKNOWN, 0 }, /* 9 */ { SDL_SCANCODE_UNKNOWN, 0 },
/* 10 */ { SDL_SCANCODE_UNKNOWN, 0 }, /* 10 */ { SDL_SCANCODE_UNKNOWN, 0 },
/* 11 */ { SDL_SCANCODE_UNKNOWN, 0 }, /* 11 */ { SDL_SCANCODE_UNKNOWN, 0 },