create onmounted event

packages/html/src/events/mounted.rs

@@ -0,0 +1,85 @@
+//! Handles quering data from the renderer
+
+use euclid::Rect;
+
+use std::{any::Any, rc::Rc};
+
+/// An Element that has been rendered and allows reading and modifying information about it.
+///
+/// Different platforms will have different implementations and different levels of support for this trait. Renderers that do not support specific features will return `None` for those queries.
+pub trait RenderedElementBacking {
+    /// Get the renderer specific element for the given id
+    fn get_raw_element(&self) -> Option<&dyn Any> {
+        None
+    }
+
+    /// Get the bounding rectangle of the element relative to the viewport (this does not include the scroll position)
+    fn get_client_rect(&self) -> Option<Rect<f64, f64>> {
+        None
+    }
+
+    /// Scroll to make the element visible
+    fn scroll_to(&self, _behavior: ScrollBehavior) -> Option<()> {
+        None
+    }
+
+    /// Set the focus on the element
+    fn set_focus(&self, _focus: bool) -> Option<()> {
+        None
+    }
+}
+
+/// The way that scrolling should be performed
+pub enum ScrollBehavior {
+    /// Scroll to the element immediately
+    Instant,
+    /// Scroll to the element smoothly
+    Smooth,
+}
+
+/// An Element that has been rendered and allows reading and modifying information about it.
+///
+/// Different platforms will have different implementations and different levels of support for this trait. Renderers that do not support specific features will return `None` for those queries.
+pub struct MountedData {
+    inner: Rc<dyn RenderedElementBacking>,
+}
+
+impl MountedData {
+    /// Create a new MountedData
+    pub fn new(registry: impl RenderedElementBacking + 'static) -> Self {
+        Self {
+            inner: Rc::new(registry),
+        }
+    }
+
+    /// Get the renderer specific element for the given id
+    pub fn get_raw_element(&self) -> Option<&dyn Any> {
+        self.inner.get_raw_element()
+    }
+
+    /// Get the bounding rectangle of the element relative to the viewport (this does not include the scroll position)
+    pub fn get_client_rect(&self) -> Option<Rect<f64, f64>> {
+        self.inner.get_client_rect()
+    }
+
+    /// Scroll to make the element visible
+    pub fn scroll_to(&self, behavior: ScrollBehavior) -> Option<()> {
+        self.inner.scroll_to(behavior)
+    }
+
+    /// Set the focus on the element
+    pub fn set_focus(&self, focus: bool) -> Option<()> {
+        self.inner.set_focus(focus)
+    }
+}
+
+use dioxus_core::Event;
+
+pub type MountedEvent = Event<MountedData>;
+
+impl_event! [
+    MountedData;
+
+    /// mounted
+    onmounted
+];