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ccmake: Fix crash when deleting all cache entries

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Prevents crash when deleting all cache entries.
Additionally, if advanced entries are hidden, no longer show the first advanced
entry when deleting all visible entries.

Fixes: #23499
This commit is contained in:
Martin Duffy
2022-05-12 16:43:15 -04:00
parent e1c85e29f4
commit 2defe9ff95
2 changed files with 11 additions and 9 deletions
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11
Source/CursesDialog/cmCursesMainForm.cxx
View File

@@ -93,13 +93,13 @@ void cmCursesMainForm::InitializeUI()
int entrywidth = this->InitialWidth - 35;
if (count == 0) {
// If cache is empty, display a label saying so and a
// Add a label to display when cache is empty
// dummy entry widget (does not respond to input)
cmCursesCacheEntryComposite comp("EMPTY CACHE", 30, 30);
comp.Entry = cm::make_unique<cmCursesDummyWidget>(1, 1, 1, 1);
newEntries.emplace_back(std::move(comp));
} else {
if (count > 0) {
// Create the composites.
// First add entries which are new
@@ -190,7 +190,8 @@ void cmCursesMainForm::RePost()
this->Fields.push_back(entry.Entry->Field);
}
// if no cache entries there should still be one dummy field
if (this->Fields.empty()) {
this->IsEmpty = this->Fields.empty();
if (this->IsEmpty) {
const auto& front = this->Entries.front();
this->Fields.push_back(front.Label->Field);
this->Fields.push_back(front.IsNewLabel->Field);
@@ -869,7 +870,7 @@ void cmCursesMainForm::HandleInput()
}
}
// delete cache entry
else if (key == 'd' && this->NumberOfVisibleEntries) {
else if (key == 'd' && this->NumberOfVisibleEntries && !this->IsEmpty) {
this->OkToGenerate = false;
FIELD* cur = current_field(this->Form);
size_t findex = field_index(cur);

1
Source/CursesDialog/cmCursesMainForm.h
View File

@@ -161,6 +161,7 @@ protected:
bool OkToGenerate = false;
// Number of pages displayed
int NumberOfPages = 0;
bool IsEmpty = false;
int InitialWidth;
std::unique_ptr<cmake> CMakeInstance;