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LibWeb: Support window.devicePixelRatio
This always returns 1 for now. I've added a FIXME about returning 2 in HiDPI mode.
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4 changed files with 19 additions and 0 deletions
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@ -67,6 +67,7 @@ void WindowObject::initialize_global_object()
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define_native_accessor("screen", screen_getter, {}, JS::Attribute::Enumerable);
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define_native_accessor("innerWidth", inner_width_getter, {}, JS::Attribute::Enumerable);
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define_native_accessor("innerHeight", inner_height_getter, {}, JS::Attribute::Enumerable);
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define_native_accessor("devicePixelRatio", device_pixel_ratio_getter, {}, JS::Attribute::Enumerable | JS::Attribute::Configurable);
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u8 attr = JS::Attribute::Writable | JS::Attribute::Enumerable | JS::Attribute::Configurable;
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define_native_function("alert", alert, 0, attr);
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define_native_function("confirm", confirm, 0, attr);
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@ -506,6 +507,14 @@ JS_DEFINE_NATIVE_FUNCTION(WindowObject::inner_height_getter)
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return JS::Value(impl->inner_height());
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}
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JS_DEFINE_NATIVE_FUNCTION(WindowObject::device_pixel_ratio_getter)
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{
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auto* impl = impl_from(vm, global_object);
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if (!impl)
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return {};
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return JS::Value(impl->device_pixel_ratio());
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}
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JS_DEFINE_NATIVE_FUNCTION(WindowObject::get_computed_style)
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{
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auto* impl = impl_from(vm, global_object);
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@ -81,6 +81,8 @@ private:
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JS_DECLARE_NATIVE_FUNCTION(parent_getter);
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JS_DECLARE_NATIVE_FUNCTION(device_pixel_ratio_getter);
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JS_DECLARE_NATIVE_GETTER(scroll_x_getter);
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JS_DECLARE_NATIVE_GETTER(scroll_y_getter);
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JS_DECLARE_NATIVE_FUNCTION(scroll);
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@ -309,4 +309,10 @@ void Window::queue_microtask(JS::FunctionObject& callback)
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});
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}
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float Window::device_pixel_ratio() const
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{
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// FIXME: Return 2.0f if we're in HiDPI mode!
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return 1.0f;
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}
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}
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@ -87,6 +87,8 @@ public:
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void fire_a_page_transition_event(FlyString event_name, bool persisted);
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float device_pixel_ratio() const;
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private:
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explicit Window(Document&);
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