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Code Issues Activity Actions

LibGUI+WindowServer: Add support for enabled/disabled actions.

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The enabled state of a GAction now propagates both to any toolbar buttons
and any menu items linked to the action. Toolbar buttons are painted in
a grayed out style when disabled. Menu items are gray when disabled. :^)
This commit is contained in:
Andreas Kling 2019-04-12 02:53:27 +02:00
parent 32e5c8c689
commit 054c982181
20 changed files with 308 additions and 53 deletions
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49
LibGUI/GAction.cpp
View file

@ -1,5 +1,7 @@
#include <LibGUI/GAction.h>
#include <LibGUI/GApplication.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GMenuItem.h>
GAction::GAction(const String& text, const String& custom_data, Function<void(const GAction&)> on_activation_callback)
: on_activation(move(on_activation_callback))
@ -46,3 +48,50 @@ void GAction::activate()
if (on_activation)
on_activation(*this);
}
void GAction::register_button(Badge<GButton>, GButton& button)
{
m_buttons.set(&button);
}
void GAction::unregister_button(Badge<GButton>, GButton& button)
{
m_buttons.remove(&button);
}
void GAction::register_menu_item(Badge<GMenuItem>, GMenuItem& menu_item)
{
m_menu_items.set(&menu_item);
}
void GAction::unregister_menu_item(Badge<GMenuItem>, GMenuItem& menu_item)
{
m_menu_items.remove(&menu_item);
}
template<typename Callback>
void GAction::for_each_toolbar_button(Callback callback)
{
for (auto& it : m_buttons)
callback(*it);
}
template<typename Callback>
void GAction::for_each_menu_item(Callback callback)
{
for (auto& it : m_menu_items)
callback(*it);
}
void GAction::set_enabled(bool enabled)
{
if (m_enabled == enabled)
return;
m_enabled = enabled;
for_each_toolbar_button([enabled] (GButton& button) {
button.set_enabled(enabled);
});
for_each_menu_item([enabled] (GMenuItem& item) {
item.set_enabled(enabled);
});
}