LibWeb: Add UIEvent class (base of MouseEvent, and others)

Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/c95a1fe3a35

Libraries/LibWeb/CMakeLists.txt

@@ -191,6 +191,7 @@ libweb_js_wrapper(HTML/HTMLTableRowElement)
 libweb_js_wrapper(HTML/HTMLTitleElement)
 libweb_js_wrapper(HTML/ImageData)
 libweb_js_wrapper(UIEvents/MouseEvent)
+libweb_js_wrapper(UIEvents/UIEvent)
 
 get_property(WRAPPER_SOURCES GLOBAL PROPERTY wrapper_sources)
 set(SOURCES ${SOURCES} ${WRAPPER_SOURCES})

Libraries/LibWeb/DOM/Event.h

@@ -42,10 +42,11 @@ public:
         return adopt(*new Event(event_name));
     }
 
-    virtual ~Event() {}
+    virtual ~Event() { }
 
     const FlyString& type() const { return m_type; }
 
+    virtual bool is_ui_event() const { return false; }
     virtual bool is_mouse_event() const { return false; }
 
 protected:

Libraries/LibWeb/UIEvents/MouseEvent.h

@@ -26,11 +26,11 @@
 
 #pragma once
 
-#include <LibWeb/DOM/Event.h>
+#include <LibWeb/UIEvents/UIEvent.h>
 
 namespace Web::UIEvents {
 
-class MouseEvent final : public DOM::Event {
+class MouseEvent final : public UIEvents::UIEvent {
 public:
     using WrapperType = Bindings::MouseEventWrapper;
 
@@ -39,14 +39,14 @@ public:
         return adopt(*new MouseEvent(event_name, offset_x, offset_y));
     }
 
-    virtual ~MouseEvent() override {}
+    virtual ~MouseEvent() override { }
 
     i32 offset_x() const { return m_offset_x; }
     i32 offset_y() const { return m_offset_y; }
 
 protected:
     MouseEvent(const FlyString& event_name, i32 offset_x, i32 offset_y)
-        : Event(event_name)
+        : UIEvent(event_name)
         , m_offset_x(offset_x)
         , m_offset_y(offset_y)
     {

Libraries/LibWeb/UIEvents/UIEvent.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 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 <LibWeb/DOM/Event.h>
+
+namespace Web::UIEvents {
+
+class UIEvent : public DOM::Event {
+public:
+    using WrapperType = Bindings::MouseEventWrapper;
+
+    virtual ~UIEvent() override { }
+
+protected:
+    explicit UIEvent(const FlyString& event_name)
+        : Event(event_name)
+    {
+    }
+
+private:
+    virtual bool is_ui_event() const final { return true; }
+};
+
+}

Libraries/LibWeb/UIEvents/UIEvent.idl

@@ -0,0 +1,3 @@
+interface UIEvent : Event {
+
+}