Move mutation logic into blitz-dom crate (#220)

Signed-off-by: Nico Burns <nico@nicoburns.com>

Author: nicoburns

packages/blitz-dom/Cargo.toml

@@ -22,6 +22,7 @@ woff-rust = ["dep:woff2"]
 clipboard = ["dep:arboard"]
 accessibility = ["accesskit"]
 system_fonts = ["parley/system"]
+autofocus = []
 
 [dependencies]
 # Blitz dependencies

packages/blitz-dom/src/document.rs

@@ -4,7 +4,7 @@ use crate::node::{ImageData, NodeSpecificData, RasterImageData, Status, TextBrus
 use crate::stylo_to_cursor_icon::stylo_to_cursor_icon;
 use crate::traversal::{AncestorTraverser, TreeTraverser};
 use crate::util::{ImageType, resolve_url};
-use crate::{ElementNodeData, Node, NodeData, TextNodeData};
+use crate::{DocumentMutator, ElementNodeData, Node, NodeData, TextNodeData};
 use app_units::Au;
 use blitz_traits::navigation::{DummyNavigationProvider, NavigationProvider};
 use blitz_traits::net::{DummyNetProvider, SharedProvider};
@@ -297,6 +297,10 @@ impl BaseDocument {
             .or(self.try_root_element().map(|el| el.id))
     }
 
+    pub fn mutate<'doc>(&'doc mut self) -> DocumentMutator<'doc> {
+        DocumentMutator::new(self)
+    }
+
     /// Find the label's bound input elements:
     /// the element id referenced by the "for" attribute of a given label element
     /// or the first input element which is nested in the label

packages/blitz-dom/src/lib.rs

@@ -28,6 +28,7 @@ mod events;
 mod form;
 /// Integration of taffy and the DOM.
 mod layout;
+mod mutator;
 mod query_selector;
 /// Implementations that interact with servo's style engine
 mod stylo;
@@ -46,7 +47,8 @@ pub use markup5ever::{
     Namespace, NamespaceStaticSet, Prefix, PrefixStaticSet, QualName, local_name, namespace_prefix,
     namespace_url, ns,
 };
-pub use node::{ElementNodeData, Node, NodeData, TextNodeData};
+pub use mutator::DocumentMutator;
+pub use node::{Attribute, ElementNodeData, Node, NodeData, TextNodeData};
 pub use parley::FontContext;
 pub use string_cache::Atom;
 pub use style::invalidation::element::restyle_hints::RestyleHint;