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core/qsmenu!: improve menu layout change UX

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Exposes QsMenuOpener.children as an ObjectModel instead of a list to
allow smoother layout change handling in custom menu renderers.

Fixes QsMenuAnchor/platform menus closing whenever menu content changes.
This commit is contained in:
outfoxxed 2024-12-13 01:30:11 -08:00
parent 3fc1c914c7
commit a053373d57
Signed by: outfoxxed
GPG key ID: 4C88A185FB89301E
7 changed files with 61 additions and 67 deletions
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41
src/dbus/dbusmenu/dbusmenu.cpp
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@ -21,6 +21,7 @@
#include <qvariant.h>
#include "../../core/iconimageprovider.hpp"
#include "../../core/model.hpp"
#include "../../core/qsmenu.hpp"
#include "../../dbus/properties.hpp"
#include "dbus_menu.h"
@ -95,22 +96,8 @@ void DBusMenuItem::updateLayout() const {
bool DBusMenuItem::hasChildren() const { return this->displayChildren || this->id == 0; }
QQmlListProperty<QsMenuEntry> DBusMenuItem::children() {
return QQmlListProperty<QsMenuEntry>(
this,
nullptr,
&DBusMenuItem::childrenCount,
&DBusMenuItem::childAt
);
}
qsizetype DBusMenuItem::childrenCount(QQmlListProperty<QsMenuEntry>* property) {
return reinterpret_cast<DBusMenuItem*>(property->object)->enabledChildren.count();
}
QsMenuEntry* DBusMenuItem::childAt(QQmlListProperty<QsMenuEntry>* property, qsizetype index) {
auto* item = reinterpret_cast<DBusMenuItem*>(property->object);
return item->menu->items.value(item->enabledChildren.at(index));
ObjectModel<QsMenuEntry>* DBusMenuItem::children() {
return reinterpret_cast<ObjectModel<QsMenuEntry>*>(&this->enabledChildren);
}
void DBusMenuItem::updateProperties(const QVariantMap& properties, const QStringList& removed) {
@ -270,14 +257,13 @@ void DBusMenuItem::updateProperties(const QVariantMap& properties, const QString
}
void DBusMenuItem::onChildrenUpdated() {
this->enabledChildren.clear();
QVector<DBusMenuItem*> children;
for (auto child: this->mChildren) {
auto* item = this->menu->items.value(child);
if (item->visible) this->enabledChildren.push_back(child);
if (item->visible) children.append(item);
}
emit this->childrenChanged();
this->enabledChildren.diffUpdate(children);
}
QDebug operator<<(QDebug debug, DBusMenuItem* item) {
@ -388,7 +374,7 @@ void DBusMenu::updateLayoutRecursive(
[&](const DBusMenuLayout& layout) { return layout.id == *iter; }
);
if (existing == layout.children.end()) {
if (!item->mShowChildren || existing == layout.children.end()) {
qCDebug(logDbusMenu) << "Removing missing layout item" << this->items.value(*iter) << "from"
<< item;
this->removeRecursive(*iter);
@ -402,7 +388,7 @@ void DBusMenu::updateLayoutRecursive(
for (const auto& child: layout.children) {
if (item->mShowChildren && !item->mChildren.contains(child.id)) {
qCDebug(logDbusMenu) << "Creating new layout item" << child.id << "in" << item;
item->mChildren.push_back(child.id);
// item->mChildren.push_back(child.id);
this->items.insert(child.id, nullptr);
childrenChanged = true;
}
@ -410,7 +396,15 @@ void DBusMenu::updateLayoutRecursive(
this->updateLayoutRecursive(child, item, depth - 1);
}
if (childrenChanged) item->onChildrenUpdated();
if (childrenChanged) {
// reset to preserve order
item->mChildren.clear();
for (const auto& child: layout.children) {
item->mChildren.push_back(child.id);
}
item->onChildrenUpdated();
}
}
if (item->mShowChildren && !item->childrenLoaded) {
@ -554,6 +548,7 @@ void DBusMenuHandle::onMenuPathChanged() {
this->mMenu->setParent(this);
QObject::connect(&this->mMenu->rootItem, &DBusMenuItem::layoutUpdated, this, [this]() {
QObject::disconnect(&this->mMenu->rootItem, &DBusMenuItem::layoutUpdated, this, nullptr);
this->loaded = true;
emit this->menuChanged();
});