LibWeb: Implement the Screen interface

https://drafts.csswg.org/cssom-view/#the-screen-interface

Userland/Libraries/LibWeb/Bindings/WindowObject.cpp

@@ -40,6 +40,7 @@
 #include <LibWeb/Bindings/NavigatorObject.h>
 #include <LibWeb/Bindings/NodeWrapperFactory.h>
 #include <LibWeb/Bindings/PerformanceWrapper.h>
+#include <LibWeb/Bindings/ScreenWrapper.h>
 #include <LibWeb/Bindings/WindowObject.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Event.h>
@@ -67,6 +68,7 @@ void WindowObject::initialize_global_object()
     define_property("self", this, JS::Attribute::Enumerable);
     define_native_property("document", document_getter, document_setter, JS::Attribute::Enumerable);
     define_native_property("performance", performance_getter, nullptr, JS::Attribute::Enumerable);
+    define_native_property("screen", screen_getter, nullptr, JS::Attribute::Enumerable);
     define_native_property("innerWidth", inner_width_getter, nullptr, JS::Attribute::Enumerable);
     define_native_property("innerHeight", inner_height_getter, nullptr, JS::Attribute::Enumerable);
     define_native_function("alert", alert);
@@ -371,6 +373,14 @@ JS_DEFINE_NATIVE_GETTER(WindowObject::performance_getter)
     return wrap(global_object, impl->performance());
 }
 
+JS_DEFINE_NATIVE_GETTER(WindowObject::screen_getter)
+{
+    auto* impl = impl_from(vm, global_object);
+    if (!impl)
+        return {};
+    return wrap(global_object, impl->screen());
+}
+
 JS_DEFINE_NATIVE_GETTER(WindowObject::event_getter)
 {
     auto* impl = impl_from(vm, global_object);

Userland/Libraries/LibWeb/Bindings/WindowObject.h

@@ -82,6 +82,7 @@ private:
     JS_DECLARE_NATIVE_SETTER(document_setter);
 
     JS_DECLARE_NATIVE_GETTER(performance_getter);
+    JS_DECLARE_NATIVE_GETTER(screen_getter);
 
     JS_DECLARE_NATIVE_GETTER(event_getter);
 

Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h

@@ -217,6 +217,8 @@
 #include <LibWeb/Bindings/SVGPathElementPrototype.h>
 #include <LibWeb/Bindings/SVGSVGElementConstructor.h>
 #include <LibWeb/Bindings/SVGSVGElementPrototype.h>
+#include <LibWeb/Bindings/ScreenConstructor.h>
+#include <LibWeb/Bindings/ScreenPrototype.h>
 #include <LibWeb/Bindings/ShadowRootConstructor.h>
 #include <LibWeb/Bindings/ShadowRootPrototype.h>
 #include <LibWeb/Bindings/StyleSheetConstructor.h>
@@ -336,6 +338,7 @@
     ADD_WINDOW_OBJECT_INTERFACE(Performance)               \
     ADD_WINDOW_OBJECT_INTERFACE(PerformanceTiming)         \
     ADD_WINDOW_OBJECT_INTERFACE(ProgressEvent)             \
+    ADD_WINDOW_OBJECT_INTERFACE(Screen)                    \
     ADD_WINDOW_OBJECT_INTERFACE(ShadowRoot)                \
     ADD_WINDOW_OBJECT_INTERFACE(StyleSheet)                \
     ADD_WINDOW_OBJECT_INTERFACE(StyleSheetList)            \

Userland/Libraries/LibWeb/CMakeLists.txt

@@ -26,6 +26,7 @@ set(SOURCES
     CSS/PropertyID.cpp
     CSS/PropertyID.h
     CSS/QuirksModeStyleSheetSource.cpp
+    CSS/Screen.cpp
     CSS/Selector.cpp
     CSS/SelectorEngine.cpp
     CSS/StyleInvalidator.cpp
@@ -290,6 +291,7 @@ endfunction()
 
 libweb_js_wrapper(CSS/CSSStyleDeclaration)
 libweb_js_wrapper(CSS/CSSStyleSheet)
+libweb_js_wrapper(CSS/Screen)
 libweb_js_wrapper(CSS/StyleSheet)
 libweb_js_wrapper(CSS/StyleSheetList)
 libweb_js_wrapper(DOM/CharacterData)

Userland/Libraries/LibWeb/CSS/Screen.cpp

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2021, Linus Groh <mail@linusgroh.de>
+ * 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.
+ */
+
+#include <LibGfx/Rect.h>
+#include <LibWeb/CSS/Screen.h>
+#include <LibWeb/DOM/Document.h>
+#include <LibWeb/DOM/Window.h>
+#include <LibWeb/Page/Page.h>
+
+namespace Web::CSS {
+
+Screen::Screen(DOM::Window& window)
+    : m_window(window)
+{
+}
+
+Gfx::IntRect Screen::screen_rect() const
+{
+    return m_window.document().page()->screen_rect();
+}
+
+}

Userland/Libraries/LibWeb/CSS/Screen.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2021, Linus Groh <mail@linusgroh.de>
+ * 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 <LibGfx/Rect.h>
+#include <LibWeb/Bindings/Wrappable.h>
+#include <LibWeb/Forward.h>
+
+namespace Web::CSS {
+
+class Screen final
+    : public RefCounted<Screen>
+    , public Bindings::Wrappable {
+
+public:
+    using WrapperType = Bindings::ScreenWrapper;
+
+    static NonnullRefPtr<Screen> create(DOM::Window& window)
+    {
+        return adopt(*new Screen(window));
+    }
+
+    i32 width() const { return screen_rect().width(); }
+    i32 height() const { return screen_rect().height(); }
+    i32 avail_width() const { return screen_rect().width(); }
+    i32 avail_height() const { return screen_rect().height(); }
+    u32 color_depth() const { return 24; }
+    u32 pixel_depth() const { return 24; }
+
+private:
+    explicit Screen(DOM::Window&);
+
+    Gfx::IntRect screen_rect() const;
+
+    DOM::Window& m_window;
+};
+
+}

Userland/Libraries/LibWeb/CSS/Screen.idl

@@ -0,0 +1,8 @@
+interface Screen {
+    readonly attribute long availWidth;
+    readonly attribute long availHeight;
+    readonly attribute long width;
+    readonly attribute long height;
+    readonly attribute unsigned long colorDepth;
+    readonly attribute unsigned long pixelDepth;
+};

Userland/Libraries/LibWeb/DOM/Window.cpp

@@ -47,6 +47,7 @@ Window::Window(Document& document)
     : EventTarget(static_cast<Bindings::ScriptExecutionContext&>(document))
     , m_document(document)
     , m_performance(make<HighResolutionTime::Performance>(*this))
+    , m_screen(CSS::Screen::create(*this))
 {
 }
 

Userland/Libraries/LibWeb/DOM/Window.h

@@ -32,6 +32,7 @@
 #include <AK/RefPtr.h>
 #include <LibWeb/Bindings/WindowObject.h>
 #include <LibWeb/Bindings/Wrappable.h>
+#include <LibWeb/CSS/Screen.h>
 #include <LibWeb/DOM/Event.h>
 #include <LibWeb/DOM/EventTarget.h>
 
@@ -83,6 +84,8 @@ public:
 
     HighResolutionTime::Performance& performance() { return *m_performance; }
 
+    CSS::Screen& screen() { return *m_screen; }
+
     const Event* current_event() const { return m_current_event; }
     void set_current_event(Event* event) { m_current_event = event; }
 
@@ -96,6 +99,7 @@ private:
     HashMap<int, NonnullRefPtr<Timer>> m_timers;
 
     NonnullOwnPtr<HighResolutionTime::Performance> m_performance;
+    NonnullRefPtr<CSS::Screen> m_screen;
     RefPtr<Event> m_current_event;
 };
 

Userland/Libraries/LibWeb/Forward.h

@@ -35,6 +35,7 @@ class CSSStyleRule;
 class CSSStyleSheet;
 class ElementInlineCSSStyleDeclaration;
 class Length;
+class Screen;
 class Selector;
 class StyleProperties;
 class StyleResolver;
@@ -297,6 +298,7 @@ class NodeWrapper;
 class PerformanceTimingWrapper;
 class PerformanceWrapper;
 class ProgressEventWrapper;
+class ScreenWrapper;
 class ScriptExecutionContext;
 class SubmitEventWrapper;
 class SVGElementWrapper;