Libraries: Move to Userland/Libraries/

1 files changed, 96 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/CSS/StyleProperties.h b/Userland/Libraries/LibWeb/CSS/StyleProperties.h
new file mode 100644
index 0000000000..29da1ab073
--- /dev/null
+++ b/Userland/Libraries/LibWeb/CSS/StyleProperties.h
@@ -0,0 +1,96 @@
+/*
+ * 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/HashMap.h>
+#include <AK/NonnullRefPtr.h>
+#include <LibGfx/Font.h>
+#include <LibGfx/Forward.h>
+#include <LibWeb/CSS/LengthBox.h>
+#include <LibWeb/CSS/StyleValue.h>
+
+namespace Web::CSS {
+
+class StyleProperties : public RefCounted<StyleProperties> {
+public:
+    StyleProperties();
+
+    explicit StyleProperties(const StyleProperties&);
+
+    static NonnullRefPtr<StyleProperties> create() { return adopt(*new StyleProperties); }
+
+    NonnullRefPtr<StyleProperties> clone() const;
+
+    template<typename Callback>
+    inline void for_each_property(Callback callback) const
+    {
+        for (auto& it : m_property_values)
+            callback((CSS::PropertyID)it.key, *it.value);
+    }
+
+    void set_property(CSS::PropertyID, NonnullRefPtr<StyleValue> value);
+    void set_property(CSS::PropertyID, const StringView&);
+    Optional<NonnullRefPtr<StyleValue>> property(CSS::PropertyID) const;
+
+    Length length_or_fallback(CSS::PropertyID, const Length& fallback) const;
+    LengthBox length_box(CSS::PropertyID left_id, CSS::PropertyID top_id, CSS::PropertyID right_id, CSS::PropertyID bottom_id, const CSS::Length& default_value) const;
+    String string_or_fallback(CSS::PropertyID, const StringView& fallback) const;
+    Color color_or_fallback(CSS::PropertyID, const DOM::Document&, Color fallback) const;
+    Optional<CSS::TextAlign> text_align() const;
+    CSS::Display display() const;
+    Optional<CSS::Float> float_() const;
+    Optional<CSS::Clear> clear() const;
+    Optional<CSS::WhiteSpace> white_space() const;
+    Optional<CSS::LineStyle> line_style(CSS::PropertyID) const;
+    Optional<CSS::TextDecorationLine> text_decoration_line() const;
+    Optional<CSS::TextTransform> text_transform() const;
+    Optional<CSS::ListStyleType> list_style_type() const;
+
+    const Gfx::Font& font() const
+    {
+        if (!m_font)
+            load_font();
+        return *m_font;
+    }
+
+    float line_height(const Layout::Node&) const;
+
+    bool operator==(const StyleProperties&) const;
+    bool operator!=(const StyleProperties& other) const { return !(*this == other); }
+
+    Optional<CSS::Position> position() const;
+    Optional<int> z_index() const;
+
+private:
+    HashMap<unsigned, NonnullRefPtr<StyleValue>> m_property_values;
+
+    void load_font() const;
+
+    mutable RefPtr<Gfx::Font> m_font;
+};
+
+}