LibCore: Add Core::deferred_invoke_if(F, Condition)

This will invoke the function F only if the provided Condition is met, otherwise the execution of the function F will be further deferred.
Author: https://github.com/alimpfard Commit: a362c37c8b Pull-request: https://github.com/SerenityOS/serenity/pull/24313 Reviewed-by: https://github.com/Zaggy1024
2025-08-07 16:49:54 +00:00 · 2024-05-08 20:08:18 +02:00 · 2024-05-08 20:08:18 +02:00 · a362c37c8b · 2024-07-17 03:05:16 +09:00
commit a362c37c8b
parent 68a1a78a1a
4 changed files with 34 additions and 3 deletions
--- a/Userland/Libraries/LibCore/DeferredInvocationContext.h
+++ b/Userland/Libraries/LibCore/DeferredInvocationContext.h
@ -13,8 +13,21 @@ namespace Core {

 class DeferredInvocationContext final : public Core::EventReceiver {
    C_OBJECT(DeferredInvocationContext)
+public:
+    bool should_invoke() const { return m_condition(); }
+
 private:
-    DeferredInvocationContext() = default;
+    DeferredInvocationContext()
+        : m_condition([] { return true; })
+    {
+    }
+
+    DeferredInvocationContext(Function<bool()> condition)
+        : m_condition(move(condition))
+    {
+    }
+
+    Function<bool()> m_condition;
 };

 }