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https://github.com/LadybirdBrowser/ladybird.git
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a5be0f0a18
We currently duplicate a lot of code to handle application/context menus and actions. The goal here is to hold the data for the menus and actions in LibWebView. Each UI will then be able to generate menus from the data on-the-fly. The structures added here are meant to support generic and checkable actions, action groups, submenus, etc.
130 lines
3.9 KiB
C++
130 lines
3.9 KiB
C++
/*
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* Copyright (c) 2025, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <UI/Qt/Icon.h>
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#include <UI/Qt/Menu.h>
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#include <UI/Qt/StringUtils.h>
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#include <UI/Qt/WebContentView.h>
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#include <QAction>
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#include <QMenu>
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#include <QPointer>
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#include <QWidget>
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namespace Ladybird {
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class ActionObserver final : public WebView::Action::Observer {
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public:
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static NonnullOwnPtr<ActionObserver> create(WebView::Action& action, QAction& qaction)
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{
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return adopt_own(*new ActionObserver(action, qaction));
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}
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virtual void on_text_changed(WebView::Action& action) override
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{
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if (m_action)
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m_action->setText(qstring_from_ak_string(action.text()));
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}
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virtual void on_tooltip_changed(WebView::Action& action) override
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{
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if (m_action)
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m_action->setToolTip(qstring_from_ak_string(action.tooltip()));
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}
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virtual void on_enabled_state_changed(WebView::Action& action) override
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{
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if (m_action)
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m_action->setEnabled(action.enabled());
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}
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virtual void on_visible_state_changed(WebView::Action& action) override
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{
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if (m_action)
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m_action->setVisible(action.visible());
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}
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virtual void on_checked_state_changed(WebView::Action& action) override
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{
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if (m_action)
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m_action->setChecked(action.checked());
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}
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private:
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ActionObserver(WebView::Action& action, QAction& qaction)
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: m_action(&qaction)
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{
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QObject::connect(m_action, &QAction::triggered, [weak_action = action.make_weak_ptr()](bool checked) {
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if (auto action = weak_action.strong_ref()) {
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if (action->is_checkable())
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action->set_checked(checked);
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action->activate();
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}
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});
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QObject::connect(m_action->parent(), &QObject::destroyed, [this, weak_action = action.make_weak_ptr()]() {
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if (auto action = weak_action.strong_ref())
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action->remove_observer(*this);
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});
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}
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QPointer<QAction> m_action;
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};
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static void initialize_native_control(WebView::Action& action, QAction& qaction)
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{
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if (action.is_checkable())
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qaction.setCheckable(true);
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action.add_observer(ActionObserver::create(action, qaction));
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}
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static void add_items_to_menu(QMenu& menu, QWidget& parent, Span<WebView::Menu::MenuItem> menu_items)
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{
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for (auto& menu_item : menu_items) {
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menu_item.visit(
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[&](NonnullRefPtr<WebView::Action>& action) {
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auto* qaction = create_application_action(parent, action);
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menu.addAction(qaction);
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},
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[&](NonnullRefPtr<WebView::Menu> const& submenu) {
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auto* qsubmenu = new QMenu(qstring_from_ak_string(submenu->title()), &menu);
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add_items_to_menu(*qsubmenu, parent, submenu->items());
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menu.addMenu(qsubmenu);
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},
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[&](WebView::Separator) {
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menu.addSeparator();
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});
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}
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}
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QMenu* create_application_menu(QWidget& parent, WebView::Menu& menu)
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{
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auto* application_menu = new QMenu(qstring_from_ak_string(menu.title()), &parent);
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add_items_to_menu(*application_menu, parent, menu.items());
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return application_menu;
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}
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QMenu* create_context_menu(QWidget& parent, WebContentView& view, WebView::Menu& menu)
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{
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auto* application_menu = create_application_menu(parent, menu);
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menu.on_activation = [view = QPointer { &view }, application_menu = QPointer { application_menu }](Gfx::IntPoint position) {
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if (view && application_menu)
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application_menu->exec(view->map_point_to_global_position(position));
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};
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return application_menu;
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}
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QAction* create_application_action(QWidget& parent, WebView::Action& action)
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{
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auto* qaction = new QAction(&parent);
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initialize_native_control(action, *qaction);
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return qaction;
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}
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}
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