LibWeb: Move HTML object model stuff into LibWeb/HTML/

Take a hint from SVG and more all the HTML classes into HTML instead of
mixing them with the DOM classes.

Libraries/LibWeb/HTML/HTMLImageElement.cpp

@@ -0,0 +1,100 @@
+/*
+ * 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.
+ */
+
+#include <LibCore/Timer.h>
+#include <LibGfx/Bitmap.h>
+#include <LibGfx/ImageDecoder.h>
+#include <LibWeb/CSS/StyleResolver.h>
+#include <LibWeb/DOM/Document.h>
+#include <LibWeb/DOM/Event.h>
+#include <LibWeb/HTML/HTMLImageElement.h>
+#include <LibWeb/Layout/LayoutImage.h>
+#include <LibWeb/Loader/ResourceLoader.h>
+#include <LibWeb/Parser/CSSParser.h>
+
+namespace Web {
+
+HTMLImageElement::HTMLImageElement(Document& document, const FlyString& tag_name)
+    : HTMLElement(document, tag_name)
+{
+    m_image_loader.on_load = [this] {
+        this->document().update_layout();
+        dispatch_event(Event::create("load"));
+    };
+
+    m_image_loader.on_fail = [this] {
+        dbg() << "HTMLImageElement: Resource did fail: " << this->src();
+        this->document().update_layout();
+        dispatch_event(Event::create("error"));
+    };
+
+    m_image_loader.on_animate = [this] {
+        if (layout_node())
+            layout_node()->set_needs_display();
+    };
+}
+
+HTMLImageElement::~HTMLImageElement()
+{
+}
+
+void HTMLImageElement::apply_presentational_hints(StyleProperties& style) const
+{
+    for_each_attribute([&](auto& name, auto& value) {
+        if (name == HTML::AttributeNames::width) {
+            if (auto parsed_value = parse_html_length(document(), value)) {
+                style.set_property(CSS::PropertyID::Width, parsed_value.release_nonnull());
+            }
+        } else if (name == HTML::AttributeNames::height) {
+            if (auto parsed_value = parse_html_length(document(), value)) {
+                style.set_property(CSS::PropertyID::Height, parsed_value.release_nonnull());
+            }
+        }
+    });
+}
+
+void HTMLImageElement::parse_attribute(const FlyString& name, const String& value)
+{
+    HTMLElement::parse_attribute(name, value);
+
+    if (name == HTML::AttributeNames::src)
+        m_image_loader.load(document().complete_url(value));
+}
+
+RefPtr<LayoutNode> HTMLImageElement::create_layout_node(const StyleProperties* parent_style)
+{
+    auto style = document().style_resolver().resolve_style(*this, parent_style);
+    if (style->display() == CSS::Display::None)
+        return nullptr;
+    return adopt(*new LayoutImage(document(), *this, move(style), m_image_loader));
+}
+
+const Gfx::Bitmap* HTMLImageElement::bitmap() const
+{
+    return m_image_loader.bitmap();
+}
+
+}