From 0b23a20ad56806e82ad67de05c82c5e3a4b47218 Mon Sep 17 00:00:00 2001
From: Sam Atkins <atkinssj@serenityos.org>
Date: Tue, 28 Sep 2021 16:53:15 +0100
Subject: [PATCH] LibWeb: Add CSSConditionRule

https://www.w3.org/TR/css-conditional-3/#the-cssconditionrule-interface

This simply exposes a condition string, which is implemented differently
in each sub-class.
---
 Userland/Libraries/LibWeb/CMakeLists.txt      |  1 +
 .../Libraries/LibWeb/CSS/CSSConditionRule.cpp | 20 +++++++++++++
 .../Libraries/LibWeb/CSS/CSSConditionRule.h   | 29 +++++++++++++++++++
 .../Libraries/LibWeb/CSS/CSSConditionRule.idl |  3 ++
 4 files changed, 53 insertions(+)
 create mode 100644 Userland/Libraries/LibWeb/CSS/CSSConditionRule.cpp
 create mode 100644 Userland/Libraries/LibWeb/CSS/CSSConditionRule.h
 create mode 100644 Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl

diff --git a/Userland/Libraries/LibWeb/CMakeLists.txt b/Userland/Libraries/LibWeb/CMakeLists.txt
index 12e3941df5..27cafb50f8 100644
--- a/Userland/Libraries/LibWeb/CMakeLists.txt
+++ b/Userland/Libraries/LibWeb/CMakeLists.txt
@@ -12,6 +12,7 @@ set(SOURCES
     Bindings/ScriptExecutionContext.cpp
     Bindings/WindowObject.cpp
     Bindings/Wrappable.cpp
+    CSS/CSSConditionRule.cpp
     CSS/CSSGroupingRule.cpp
     CSS/CSSImportRule.cpp
     CSS/CSSRule.cpp
diff --git a/Userland/Libraries/LibWeb/CSS/CSSConditionRule.cpp b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.cpp
new file mode 100644
index 0000000000..eb2a3716cb
--- /dev/null
+++ b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.cpp
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/CSS/CSSConditionRule.h>
+
+namespace Web::CSS {
+
+CSSConditionRule::CSSConditionRule(NonnullRefPtrVector<CSSRule>&& rules)
+    : CSSGroupingRule(move(rules))
+{
+}
+
+CSSConditionRule::~CSSConditionRule()
+{
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/CSS/CSSConditionRule.h b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.h
new file mode 100644
index 0000000000..7fb5b55caa
--- /dev/null
+++ b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/NonnullRefPtr.h>
+#include <LibWeb/CSS/CSSGroupingRule.h>
+#include <LibWeb/Forward.h>
+
+namespace Web::CSS {
+
+class CSSConditionRule : public CSSGroupingRule {
+    AK_MAKE_NONCOPYABLE(CSSConditionRule);
+    AK_MAKE_NONMOVABLE(CSSConditionRule);
+
+public:
+    ~CSSConditionRule();
+
+    virtual String condition_text() const = 0;
+    virtual void set_condition_text(String) = 0;
+
+protected:
+    explicit CSSConditionRule(NonnullRefPtrVector<CSSRule>&&);
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl
new file mode 100644
index 0000000000..3d4420cf3a
--- /dev/null
+++ b/Userland/Libraries/LibWeb/CSS/CSSConditionRule.idl
@@ -0,0 +1,3 @@
+interface CSSConditionRule : CSSGroupingRule {
+    attribute CSSOMString conditionText;
+};