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qt_software_keyboard: Fix infinite loop when moving between buttons

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There was a bug where, when using the numeric keyboard, moving between buttons resulted in an infinite loop, resulting in a stuck state.
This was due to prev_button being the only one enabled in that row or column, causing the condition in the while loop to always be true.
To fix this, detect whether we have returned to that initial row/column and break out of the loop.
This commit is contained in:
Morph 2022-07-24 07:27:10 -04:00
parent bee823db3a
commit d7d09355e7
1 changed files with 14 additions and 0 deletions
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14
src/yuzu/applets/qt_software_keyboard.cpp
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@ -1401,6 +1401,10 @@ void QtSoftwareKeyboardDialog::MoveButtonDirection(Direction direction) {
}
};
// Store the initial row and column.
const auto initial_row = row;
const auto initial_column = column;
switch (bottom_osk_index) {
case BottomOSKIndex::LowerCase:
case BottomOSKIndex::UpperCase: {
@ -1411,6 +1415,11 @@ void QtSoftwareKeyboardDialog::MoveButtonDirection(Direction direction) {
auto* curr_button = keyboard_buttons[index][row][column];
while (!curr_button || !curr_button->isEnabled() || curr_button == prev_button) {
// If we returned back to where we started from, break the loop.
if (row == initial_row && column == initial_column) {
break;
}
move_direction(NUM_ROWS_NORMAL, NUM_COLUMNS_NORMAL);
curr_button = keyboard_buttons[index][row][column];
}
@ -1425,6 +1434,11 @@ void QtSoftwareKeyboardDialog::MoveButtonDirection(Direction direction) {
auto* curr_button = numberpad_buttons[row][column];
while (!curr_button || !curr_button->isEnabled() || curr_button == prev_button) {
// If we returned back to where we started from, break the loop.
if (row == initial_row && column == initial_column) {
break;
}
move_direction(NUM_ROWS_NUMPAD, NUM_COLUMNS_NUMPAD);
curr_button = numberpad_buttons[row][column];
}