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C++: Fix input event within repeater

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This commit is contained in:
Olivier Goffart 2020-08-10 08:55:42 +02:00
parent 9b0dfa14b5
commit cc5d5cc92b
2 changed files with 26 additions and 8 deletions
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21
api/sixtyfps-cpp/include/sixtyfps.h
View file

@ -82,10 +82,10 @@ constexpr inline ItemTreeNode make_dyn_node(std::uintptr_t offset)
using internal::sixtyfps_visit_item_tree;
using internal::MouseEvent;
using internal::InputEventResult;
template<typename HandleDynamic>
template<typename GetDynamic>
inline InputEventResult process_input_event(
ComponentRef component, int64_t &mouse_grabber, MouseEvent mouse_event,
Slice<ItemTreeNode> tree, HandleDynamic handle_dynamic)
Slice<ItemTreeNode> tree, GetDynamic get_dynamic)
{
if (mouse_grabber != -1) {
auto item_index = mouse_grabber & 0xffffffff;
@ -101,8 +101,10 @@ inline InputEventResult process_input_event(
reinterpret_cast<char*>(component.instance) + item_node.item.item.offset,
} , mouse_event);
break;
case ItemTreeNode::Tag::DynamicTree:
result = handle_dynamic(item_node.dynamic_tree.index, rep_index, &mouse_event);
case ItemTreeNode::Tag::DynamicTree: {
ComponentRef comp = get_dynamic(item_node.dynamic_tree.index, rep_index);
result = comp.vtable->input_event(comp, mouse_event);
}
break;
}
if (result != InputEventResult::GrabMouse) {
@ -177,15 +179,20 @@ struct Repeater
intptr_t visit(ItemVisitorRefMut visitor) const
{
for (auto i = 0; i < data.size(); ++i) {
const auto &x = data.at(i);
VRef<ComponentVTable> ref { &C::component_type, x.get() };
for (std::size_t i = 0; i < data.size(); ++i) {
VRef<ComponentVTable> ref = item_at(i);
if (ref.vtable->visit_children_item(ref, -1, visitor) != -1) {
return i;
}
}
return -1;
}
VRef<ComponentVTable> item_at(int i) const {
const auto &x = data.at(i);
return { &C::component_type, x.get() };
}
};
Flickable::Flickable()

13
sixtyfps_compiler/generator/cpp.rs
View file

@ -357,6 +357,7 @@ fn handle_repeater(
component_struct: &mut Struct,
init: &mut Vec<String>,
children_repeater_cases: &mut Vec<String>,
repeated_input_branch: &mut Vec<String>,
) {
let repeater_id =
format!("repeater_{}", base_component.parent_element.upgrade().unwrap().borrow().id);
@ -407,6 +408,12 @@ fn handle_repeater(
));
}
repeated_input_branch.push(format!(
"\n case {i}: return self->{id}.item_at(rep_index);",
i = repeater_count,
id = repeater_id,
));
component_struct.members.push((
Access::Private,
Declaration::Var(Var {
@ -661,6 +668,7 @@ fn generate_component(
}
let mut children_visitor_case = vec![];
let mut repeated_input_branch = vec![];
let mut tree_array = vec![];
let mut repeater_count = 0;
super::build_array_helper(component, |item_rc, children_offset, is_flickable_rect| {
@ -692,6 +700,7 @@ fn generate_component(
&mut component_struct,
&mut init,
&mut children_visitor_case,
&mut repeated_input_branch,
);
repeater_count += 1;
} else {
@ -770,7 +779,9 @@ fn generate_component(
is_static: true,
statements: Some(vec![
format!(" auto self = reinterpret_cast<{}*>(component.instance);", component_id),
"return sixtyfps::process_input_event(component, self->mouse_grabber, mouse_event, item_tree(), [](auto...) { return sixtyfps::InputEventResult::EventIgnored; });".into()
"return sixtyfps::process_input_event(component, self->mouse_grabber, mouse_event, item_tree(), [self](int dyn_index, [[maybe_unused]] int rep_index) {".into(),
format!(" switch(dyn_index) {{ {} }};", repeated_input_branch.join("")),
" return sixtyfps::ComponentRef{nullptr, nullptr};\n});".into(),
]),
..Default::default()
}),