feat: port el-ui vessels — rename crates→vessels, add El source + manifests

2026-05-05 04:19:22 -05:00
parent b580a63540
commit faee6fdb25
145 changed files with 4050 additions and 12 deletions
@@ -0,0 +1,156 @@
+//! Windows backend — Win32/WinUI.
+//!
+//! Architecture: correct and complete. Win32/WinUI calls are stubs marked TODO.
+//!
+//! Each `PlatformNode` maps to a HWND or WinUI control:
+//!   element("div")    → Panel (WinUI StackPanel)
+//!   element("button") → Button (WinUI)
+//!   element("input")  → TextBox (WinUI)
+//!   text("...")       → TextBlock (WinUI)
+
+use crate::{EventHandler, PlatformBackend, PlatformError, PlatformNode, PlatformResult};
+
+pub struct WindowsBackend;
+
+impl WindowsBackend {
+    pub fn new() -> Self {
+        Self
+    }
+
+    fn winui_control(tag: &str) -> &'static str {
+        match tag {
+            "button" => "Microsoft.UI.Xaml.Controls.Button",
+            "input" => "Microsoft.UI.Xaml.Controls.TextBox",
+            "textarea" => "Microsoft.UI.Xaml.Controls.TextBox",
+            "img" => "Microsoft.UI.Xaml.Controls.Image",
+            "ul" | "ol" => "Microsoft.UI.Xaml.Controls.ListView",
+            "li" => "Microsoft.UI.Xaml.Controls.ListViewItem",
+            "nav" => "Microsoft.UI.Xaml.Controls.NavigationView",
+            _ => "Microsoft.UI.Xaml.Controls.StackPanel",
+        }
+    }
+
+    fn winui_event(event: &str) -> &'static str {
+        match event {
+            "click" => "Click",
+            "input" | "change" => "TextChanged",
+            "focus" => "GotFocus",
+            "blur" => "LostFocus",
+            "keydown" | "keypress" => "KeyDown",
+            "keyup" => "KeyUp",
+            _ => "PointerPressed",
+        }
+    }
+}
+
+impl Default for WindowsBackend {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl PlatformBackend for WindowsBackend {
+    fn name(&self) -> &'static str {
+        "windows"
+    }
+
+    fn create_element(&self, tag: &str) -> PlatformResult<PlatformNode> {
+        let mut node = PlatformNode::element(tag);
+        // TODO: WinRT/COM activation via windows-rs crate:
+        //   let panel: StackPanel = StackPanel::new()?;
+        node.attributes
+            .push(crate::Attribute::new("data-winui-control", Self::winui_control(tag)));
+        Ok(node)
+    }
+
+    fn create_text(&self, content: &str) -> PlatformResult<PlatformNode> {
+        let mut node = PlatformNode::text(content);
+        // TODO: TextBlock::new()?.set_text(content)
+        node.attributes
+            .push(crate::Attribute::new("data-winui-control", "Microsoft.UI.Xaml.Controls.TextBlock"));
+        Ok(node)
+    }
+
+    fn set_attribute(
+        &self,
+        node: &mut PlatformNode,
+        name: &str,
+        value: &str,
+    ) -> PlatformResult<()> {
+        // TODO: map to WinUI property setters
+        node.attributes.retain(|a| a.name != name);
+        node.attributes.push(crate::Attribute::new(name, value));
+        Ok(())
+    }
+
+    fn remove_attribute(&self, node: &mut PlatformNode, name: &str) -> PlatformResult<()> {
+        node.attributes.retain(|a| a.name != name);
+        Ok(())
+    }
+
+    fn append_child(
+        &self,
+        parent: &mut PlatformNode,
+        child: PlatformNode,
+    ) -> PlatformResult<()> {
+        // TODO: panel.Children().Append(child_element)
+        parent.children.push(child);
+        Ok(())
+    }
+
+    fn remove_child(&self, parent: &mut PlatformNode, child_index: usize) -> PlatformResult<()> {
+        if child_index >= parent.children.len() {
+            return Err(PlatformError::Render(format!(
+                "windows: child index {} out of bounds",
+                child_index
+            )));
+        }
+        // TODO: panel.Children().RemoveAt(child_index)
+        parent.children.remove(child_index);
+        Ok(())
+    }
+
+    fn replace_child(
+        &self,
+        parent: &mut PlatformNode,
+        index: usize,
+        new_child: PlatformNode,
+    ) -> PlatformResult<()> {
+        if index >= parent.children.len() {
+            return Err(PlatformError::Render(
+                "windows: replace_child out of bounds".into(),
+            ));
+        }
+        parent.children[index] = new_child;
+        Ok(())
+    }
+
+    fn bind_event(
+        &self,
+        node: &mut PlatformNode,
+        event: &str,
+        _handler: EventHandler,
+    ) -> PlatformResult<()> {
+        let winui_event = Self::winui_event(event);
+        // TODO: button.Click(TypedEventHandler::new(|sender, args| { handler(...) }))
+        node.attributes.push(crate::Attribute::new(
+            format!("data-winui-event-{}", event),
+            winui_event,
+        ));
+        Ok(())
+    }
+
+    fn render_to_string(&self, node: &PlatformNode) -> PlatformResult<String> {
+        Ok(node.to_html())
+    }
+
+    fn mount(&self, _root: PlatformNode, _container_id: &str) -> PlatformResult<()> {
+        // TODO: get Window by container_id, set root as Content
+        Ok(())
+    }
+
+    fn patch(&self, _old: &PlatformNode, _new: &PlatformNode) -> PlatformResult<()> {
+        // TODO: diff and apply WinUI mutations
+        Ok(())
+    }
+}