LibCore: Remove leading C from filenames

Libraries/LibCore/Event.h

@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/Function.h>
+#include <AK/String.h>
+#include <AK/Types.h>
+#include <AK/WeakPtr.h>
+
+namespace Core {
+
+class Object;
+
+class Event {
+public:
+    enum Type {
+        Invalid = 0,
+        Quit,
+        Timer,
+        NotifierRead,
+        NotifierWrite,
+        DeferredInvoke,
+        ChildAdded,
+        ChildRemoved,
+        Custom,
+    };
+
+    Event() {}
+    explicit Event(unsigned type)
+        : m_type(type)
+    {
+    }
+    virtual ~Event() {}
+
+    unsigned type() const { return m_type; }
+
+    bool is_accepted() const { return m_accepted; }
+    void accept() { m_accepted = true; }
+    void ignore() { m_accepted = false; }
+
+private:
+    unsigned m_type { Type::Invalid };
+    bool m_accepted { true };
+};
+
+class DeferredInvocationEvent : public Event {
+    friend class EventLoop;
+
+public:
+    DeferredInvocationEvent(Function<void(Object&)> invokee)
+        : Event(Event::Type::DeferredInvoke)
+        , m_invokee(move(invokee))
+    {
+    }
+
+private:
+    Function<void(Object&)> m_invokee;
+};
+
+class TimerEvent final : public Event {
+public:
+    explicit TimerEvent(int timer_id)
+        : Event(Event::Timer)
+        , m_timer_id(timer_id)
+    {
+    }
+    ~TimerEvent() {}
+
+    int timer_id() const { return m_timer_id; }
+
+private:
+    int m_timer_id;
+};
+
+class NotifierReadEvent final : public Event {
+public:
+    explicit NotifierReadEvent(int fd)
+        : Event(Event::NotifierRead)
+        , m_fd(fd)
+    {
+    }
+    ~NotifierReadEvent() {}
+
+    int fd() const { return m_fd; }
+
+private:
+    int m_fd;
+};
+
+class NotifierWriteEvent final : public Event {
+public:
+    explicit NotifierWriteEvent(int fd)
+        : Event(Event::NotifierWrite)
+        , m_fd(fd)
+    {
+    }
+    ~NotifierWriteEvent() {}
+
+    int fd() const { return m_fd; }
+
+private:
+    int m_fd;
+};
+
+class ChildEvent final : public Event {
+public:
+    ChildEvent(Type, Object& child, Object* insertion_before_child = nullptr);
+    ~ChildEvent();
+
+    Object* child() { return m_child.ptr(); }
+    const Object* child() const { return m_child.ptr(); }
+
+    Object* insertion_before_child() { return m_insertion_before_child.ptr(); }
+    const Object* insertion_before_child() const { return m_insertion_before_child.ptr(); }
+
+private:
+    WeakPtr<Object> m_child;
+    WeakPtr<Object> m_insertion_before_child;
+};
+
+class CustomEvent : public Event {
+public:
+    CustomEvent(int custom_type, void* data = nullptr)
+        : Event(Event::Type::Custom)
+        , m_custom_type(custom_type)
+        , m_data(data)
+    {
+    }
+    ~CustomEvent() {}
+
+    int custom_type() const { return m_custom_type; }
+    void* data() { return m_data; }
+    const void* data() const { return m_data; }
+
+private:
+    int m_custom_type { 0 };
+    void* m_data { nullptr };
+};
+
+}