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7083a0104a
This can be used to make a bunch of actions mutually exclusive. This patch only implements the exclusivity behavior for buttons.
132 lines
3.7 KiB
C++
132 lines
3.7 KiB
C++
#include <LibGUI/GAction.h>
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#include <LibGUI/GActionGroup.h>
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#include <LibGUI/GApplication.h>
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#include <LibGUI/GButton.h>
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#include <LibGUI/GMenuItem.h>
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GAction::GAction(const StringView& text, Function<void(GAction&)> on_activation_callback, GWidget* widget)
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: on_activation(move(on_activation_callback))
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, m_text(text)
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, m_widget(widget ? widget->make_weak_ptr() : nullptr)
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{
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}
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GAction::GAction(const StringView& text, RefPtr<GraphicsBitmap>&& icon, Function<void(GAction&)> on_activation_callback, GWidget* widget)
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: on_activation(move(on_activation_callback))
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, m_text(text)
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, m_icon(move(icon))
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, m_widget(widget ? widget->make_weak_ptr() : nullptr)
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{
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}
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GAction::GAction(const StringView& text, const GShortcut& shortcut, Function<void(GAction&)> on_activation_callback, GWidget* widget)
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: GAction(text, shortcut, nullptr, move(on_activation_callback), widget)
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{
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}
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GAction::GAction(const StringView& text, const GShortcut& shortcut, RefPtr<GraphicsBitmap>&& icon, Function<void(GAction&)> on_activation_callback, GWidget* widget)
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: on_activation(move(on_activation_callback))
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, m_text(text)
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, m_icon(move(icon))
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, m_shortcut(shortcut)
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, m_widget(widget ? widget->make_weak_ptr() : nullptr)
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{
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if (m_widget) {
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m_scope = ShortcutScope::WidgetLocal;
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m_widget->register_local_shortcut_action({}, *this);
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} else {
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m_scope = ShortcutScope::ApplicationGlobal;
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GApplication::the().register_global_shortcut_action({}, *this);
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}
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}
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GAction::~GAction()
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{
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if (m_shortcut.is_valid() && m_scope == ShortcutScope::ApplicationGlobal)
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GApplication::the().unregister_global_shortcut_action({}, *this);
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if (m_widget && m_scope == ShortcutScope::WidgetLocal)
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m_widget->unregister_local_shortcut_action({}, *this);
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}
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void GAction::activate()
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{
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if (on_activation)
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on_activation(*this);
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}
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void GAction::register_button(Badge<GButton>, GButton& button)
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{
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m_buttons.set(&button);
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}
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void GAction::unregister_button(Badge<GButton>, GButton& button)
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{
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m_buttons.remove(&button);
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}
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void GAction::register_menu_item(Badge<GMenuItem>, GMenuItem& menu_item)
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{
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m_menu_items.set(&menu_item);
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}
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void GAction::unregister_menu_item(Badge<GMenuItem>, GMenuItem& menu_item)
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{
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m_menu_items.remove(&menu_item);
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}
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template<typename Callback>
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void GAction::for_each_toolbar_button(Callback callback)
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{
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for (auto& it : m_buttons)
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callback(*it);
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}
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template<typename Callback>
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void GAction::for_each_menu_item(Callback callback)
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{
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for (auto& it : m_menu_items)
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callback(*it);
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}
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void GAction::set_enabled(bool enabled)
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{
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if (m_enabled == enabled)
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return;
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m_enabled = enabled;
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for_each_toolbar_button([enabled](GButton& button) {
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button.set_enabled(enabled);
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});
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for_each_menu_item([enabled](GMenuItem& item) {
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item.set_enabled(enabled);
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});
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}
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void GAction::set_checked(bool checked)
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{
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if (m_checked == checked)
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return;
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m_checked = checked;
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if (m_checked && m_action_group) {
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m_action_group->for_each_action([this](auto& other_action) {
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if (this == &other_action)
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return IterationDecision::Continue;
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if (other_action.is_checkable())
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other_action.set_checked(false);
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return IterationDecision::Continue;
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});
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}
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for_each_toolbar_button([checked](GButton& button) {
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button.set_checked(checked);
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});
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for_each_menu_item([checked](GMenuItem& item) {
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item.set_checked(checked);
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});
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}
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void GAction::set_group(Badge<GActionGroup>, GActionGroup* group)
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{
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m_action_group = group ? group->make_weak_ptr() : nullptr;
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}
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