Revamped prelaunch experiment w/ RmlUi

src/dusk/ui/element.cpp

@@ -0,0 +1,81 @@
+#include "element.hpp"
+
+#include <RmlUi/Core/ElementDocument.h>
+
+#include <string>
+
+namespace dusk::ui {
+
+std::string escape(std::string_view text) {
+    std::string result;
+    result.reserve(text.size());
+    for (char c : text) {
+        switch (c) {
+        case '&':
+            result += "&amp;";
+            break;
+        case '<':
+            result += "&lt;";
+            break;
+        case '>':
+            result += "&gt;";
+            break;
+        case '"':
+            result += "&quot;";
+            break;
+        case '\'':
+            result += "&apos;";
+            break;
+        default:
+            result += c;
+            break;
+        }
+    }
+    return result;
+}
+
+Rml::Element* append(Rml::Element* parent, std::string_view tag, std::string_view id) {
+    if (parent == nullptr) {
+        return nullptr;
+    }
+
+    Rml::ElementDocument* document = parent->GetOwnerDocument();
+    if (document == nullptr) {
+        document = dynamic_cast<Rml::ElementDocument*>(parent);
+    }
+    if (document == nullptr) {
+        return nullptr;
+    }
+
+    Rml::ElementPtr child = document->CreateElement(std::string(tag));
+    Rml::Element* rawChild = child.get();
+    if (!id.empty()) {
+        rawChild->SetId(std::string(id));
+    }
+    return parent->AppendChild(std::move(child));
+}
+
+Rml::Element* append_text(Rml::Element* parent, std::string_view tag, std::string_view text,
+                          std::string_view id) {
+    Rml::Element* element = append(parent, tag, id);
+    set_text(element, text);
+    return element;
+}
+
+void set_text(Rml::Element* element, std::string_view text) {
+    if (element != nullptr) {
+        element->SetInnerRML(escape(text));
+    }
+}
+
+void set_props(Rml::Element* element,
+               std::initializer_list<std::pair<std::string_view, std::string_view> > properties) {
+    if (element == nullptr) {
+        return;
+    }
+    for (const auto& [name, value] : properties) {
+        element->SetProperty(std::string(name), std::string(value));
+    }
+}
+
+}  // namespace dusk::ui