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Fix popup menu with variable item height.

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This commit is contained in:
John Preston 2022-07-26 18:31:20 +03:00
parent 14f5a828fc
commit 4ff70e7dff
1 changed files with 35 additions and 21 deletions
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48
ui/widgets/menu/menu.cpp
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@ -148,29 +148,44 @@ not_null<QAction*> Menu::addAction(base::unique_qptr<ItemBase> widget) {
const auto raw = widget.get();
_actionWidgets.push_back(std::move(widget));
rpl::combine(
raw->minWidthValue(),
raw->heightValue()
) | rpl::start_with_next([=] {
const auto newWidth = _forceWidth
const auto recountWidth = [=] {
return _forceWidth
? _forceWidth
: std::clamp(
_actionWidgets.empty()
(_actionWidgets.empty()
? 0
: (*ranges::max_element(
_actionWidgets,
std::less<>(),
&ItemBase::minWidth))->minWidth(),
&ItemBase::minWidth))->minWidth()),
_st.widthMin,
_st.widthMax);
const auto newHeight = ranges::accumulate(
_actionWidgets,
0,
ranges::plus(),
&ItemBase::height);
resizeFromInner(newWidth, newHeight);
};
const auto recountHeight = [=] {
auto result = 0;
for (const auto &widget : _actionWidgets) {
if (widget->y() != result) {
widget->move(0, result);
}
result += widget->height();
}
return result;
};
raw->minWidthValue(
) | rpl::skip(1) | rpl::filter([=] {
return !_forceWidth;
}) | rpl::start_with_next([=] {
resizeFromInner(recountWidth(), height());
}, raw->lifetime());
raw->heightValue(
) | rpl::skip(1) | rpl::start_with_next([=] {
resizeFromInner(width(), recountHeight());
}, raw->lifetime());
resizeFromInner(recountWidth(), recountHeight());
updateSelected(QCursor::pos());
return action;
@ -204,12 +219,11 @@ bool Menu::empty() const {
}
void Menu::resizeFromInner(int w, int h) {
if ((w == width()) && (h == height())) {
return;
}
resize(w, h);
if (const auto s = QSize(w, h); s != size()) {
resize(s);
_resizesFromInner.fire({});
}
}
rpl::producer<> Menu::resizesFromInner() const {
return _resizesFromInner.events();