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@@ -1,409 +0,0 @@
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-use std::collections::HashMap;
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-use std::collections::HashSet;
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-use std::{cmp::min, rc::Rc};
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-use wasm_bindgen::JsCast;
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-use wasm_bindgen::JsValue;
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-use web_sys::{Element, Node, Text};
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-
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-/// Apply all of the patches to our old root node in order to create the new root node
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-/// that we desire.
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-/// This is usually used after diffing two virtual nodes.
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-pub fn patch<N: Into<Node>>(root_node: N, patches: &Vec<Patch>) -> Result<(), JsValue> {
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- // pub fn patch<N: Into<Node>>(root_node: N, patches: &Vec<Patch>) -> Result<ActiveClosures, JsValue> {
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- let root_node: Node = root_node.into();
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-
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- let mut cur_node_idx = 0;
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-
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- let mut nodes_to_find = HashSet::new();
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-
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- for patch in patches {
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- nodes_to_find.insert(patch.node_idx());
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- }
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-
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- let mut element_nodes_to_patch = HashMap::new();
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- let mut text_nodes_to_patch = HashMap::new();
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-
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- // Closures that were added to the DOM during this patch operation.
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- // let mut active_closures = HashMap::new();
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-
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- find_nodes(
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- root_node,
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- &mut cur_node_idx,
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- &mut nodes_to_find,
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- &mut element_nodes_to_patch,
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- &mut text_nodes_to_patch,
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- );
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-
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- for patch in patches {
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- let patch_node_idx = patch.node_idx();
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-
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- if let Some(element) = element_nodes_to_patch.get(&patch_node_idx) {
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- let new_closures = apply_element_patch(&element, &patch)?;
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- // active_closures.extend(new_closures);
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- continue;
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- }
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-
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- if let Some(text_node) = text_nodes_to_patch.get(&patch_node_idx) {
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- apply_text_patch(&text_node, &patch)?;
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- continue;
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- }
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-
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- unreachable!("Getting here means we didn't find the element or next node that we were supposed to patch.")
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- }
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-
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- // Ok(active_closures)
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- Ok(())
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-}
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-
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-fn find_nodes(
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- root_node: Node,
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- cur_node_idx: &mut usize,
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- nodes_to_find: &mut HashSet<usize>,
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- element_nodes_to_patch: &mut HashMap<usize, Element>,
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- text_nodes_to_patch: &mut HashMap<usize, Text>,
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-) {
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- if nodes_to_find.len() == 0 {
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- return;
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- }
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-
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- // We use child_nodes() instead of children() because children() ignores text nodes
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- let children = root_node.child_nodes();
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- let child_node_count = children.length();
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-
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- // If the root node matches, mark it for patching
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- if nodes_to_find.get(&cur_node_idx).is_some() {
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- match root_node.node_type() {
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- Node::ELEMENT_NODE => {
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- element_nodes_to_patch.insert(*cur_node_idx, root_node.unchecked_into());
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- }
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- Node::TEXT_NODE => {
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- text_nodes_to_patch.insert(*cur_node_idx, root_node.unchecked_into());
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- }
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- other => unimplemented!("Unsupported root node type: {}", other),
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- }
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- nodes_to_find.remove(&cur_node_idx);
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- }
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-
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- *cur_node_idx += 1;
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-
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- for i in 0..child_node_count {
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- let node = children.item(i).unwrap();
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-
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- match node.node_type() {
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- Node::ELEMENT_NODE => {
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- find_nodes(
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- node,
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- cur_node_idx,
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- nodes_to_find,
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- element_nodes_to_patch,
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- text_nodes_to_patch,
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- );
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- }
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- Node::TEXT_NODE => {
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- if nodes_to_find.get(&cur_node_idx).is_some() {
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- text_nodes_to_patch.insert(*cur_node_idx, node.unchecked_into());
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- }
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-
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- *cur_node_idx += 1;
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- }
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- Node::COMMENT_NODE => {
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- // At this time we do not support user entered comment nodes, so if we see a comment
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- // then it was a delimiter created by virtual-dom-rs in order to ensure that two
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- // neighboring text nodes did not get merged into one by the browser. So we skip
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- // over this virtual-dom-rs generated comment node.
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- }
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- _other => {
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- // Ignoring unsupported child node type
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- // TODO: What do we do with this situation? Log a warning?
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- }
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- }
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- }
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-}
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-
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-// pub type ActiveClosures = HashMap<u32, Vec<DynClosure>>;
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-
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-// fn apply_element_patch(node: &Element, patch: &Patch) -> Result<ActiveClosures, JsValue> {
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-fn apply_element_patch(node: &Element, patch: &Patch) -> Result<(), JsValue> {
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- // let active_closures = HashMap::new();
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-
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- match patch {
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- Patch::AddAttributes(_node_idx, attributes) => {
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- for (attrib_name, attrib_val) in attributes.iter() {
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- node.set_attribute(attrib_name, attrib_val)?;
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- }
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-
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- // Ok(active_closures)
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- Ok(())
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- }
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- Patch::RemoveAttributes(_node_idx, attributes) => {
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- for attrib_name in attributes.iter() {
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- node.remove_attribute(attrib_name)?;
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- }
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-
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- // Ok(active_closures)
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- Ok(())
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- }
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- Patch::Replace(_node_idx, new_node) => {
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- let created_node = create_dom_node(&new_node);
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-
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- node.replace_with_with_node_1(&created_node.node)?;
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-
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- Ok(())
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- // Ok(created_node.closures)
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- }
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- Patch::TruncateChildren(_node_idx, num_children_remaining) => {
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- let children = node.child_nodes();
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- let mut child_count = children.length();
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-
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- // We skip over any separators that we placed between two text nodes
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- // -> `<!--ptns-->`
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- // and trim all children that come after our new desired `num_children_remaining`
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- let mut non_separator_children_found = 0;
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-
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- for index in 0 as u32..child_count {
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- let child = children
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- .get(min(index, child_count - 1))
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- .expect("Potential child to truncate");
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-
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- // If this is a comment node then we know that it is a `<!--ptns-->`
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- // text node separator that was created in virtual_node/mod.rs.
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- if child.node_type() == Node::COMMENT_NODE {
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- continue;
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- }
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-
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- non_separator_children_found += 1;
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-
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- if non_separator_children_found <= *num_children_remaining as u32 {
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- continue;
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- }
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-
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- node.remove_child(&child).expect("Truncated children");
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- child_count -= 1;
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- }
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-
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- Ok(())
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- // Ok(active_closures)
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- }
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- Patch::AppendChildren(_node_idx, new_nodes) => {
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- let parent = &node;
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-
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- let mut active_closures = HashMap::new();
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-
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- for new_node in new_nodes {
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- let created_node = create_dom_node(&new_node);
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- // let created_node = new_node.create_dom_node();
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-
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- parent.append_child(&created_node.node)?;
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-
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- active_closures.extend(created_node.closures);
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- }
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-
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- Ok(())
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- // Ok(active_closures)
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- }
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- Patch::ChangeText(_node_idx, _new_node) => {
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- unreachable!("Elements should not receive ChangeText patches.")
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- }
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- }
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-}
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-
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-fn apply_text_patch(node: &Text, patch: &Patch) -> Result<(), JsValue> {
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- match patch {
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- Patch::ChangeText(_node_idx, new_node) => {
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- node.set_node_value(Some(&new_node.text));
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- }
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- Patch::Replace(_node_idx, new_node) => {
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- node.replace_with_with_node_1(&create_dom_node(&new_node).node)?;
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- // node.replace_with_with_node_1(&new_node.create_dom_node().node)?;
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- }
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- other => unreachable!(
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- "Text nodes should only receive ChangeText or Replace patches, not ",
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- // other,
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- // "Text nodes should only receive ChangeText or Replace patches, not {:?}.",
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- // other,
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- ),
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- };
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-
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- Ok(())
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-}
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-
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-/// A node along with all of the closures that were created for that
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-/// node's events and all of it's child node's events.
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-pub struct CreatedNode<T> {
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- /// A `Node` or `Element` that was created from a `VirtualNode`
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- pub node: T,
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- /// A map of a node's unique identifier along with all of the Closures for that node.
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- ///
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- /// The DomUpdater uses this to look up nodes and see if they're still in the page. If not
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- /// the reference that we maintain to their closure will be dropped, thus freeing the Closure's
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- /// memory.
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- pub closures: HashMap<u32, Vec<DynClosure>>,
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-}
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-
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-/// Box<dyn AsRef<JsValue>>> is our js_sys::Closure. Stored this way to allow us to store
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-/// any Closure regardless of the arguments.
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-pub type DynClosure = Rc<dyn AsRef<JsValue>>;
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-
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-impl<T> CreatedNode<T> {
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- pub fn without_closures<N: Into<T>>(node: N) -> Self {
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- CreatedNode {
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- node: node.into(),
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- closures: HashMap::with_capacity(0),
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- }
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- }
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-}
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-
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-impl<T> std::ops::Deref for CreatedNode<T> {
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- type Target = T;
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- fn deref(&self) -> &Self::Target {
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- &self.node
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- }
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-}
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-
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-impl From<CreatedNode<Element>> for CreatedNode<Node> {
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- fn from(other: CreatedNode<Element>) -> CreatedNode<Node> {
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- CreatedNode {
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- node: other.node.into(),
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- closures: other.closures,
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- }
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- }
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-}
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-fn create_dom_node(node: &VNode<'_>) -> CreatedNode<Node> {
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- match node {
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- VNode::Text(text_node) => CreatedNode::without_closures(create_text_node(text_node)),
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- VNode::Element(element_node) => create_element_node(element_node).into(),
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- // VNode::Element(element_node) => element_node.create_element_node().into(),
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- VNode::Suspended => todo!(" not iimplemented yet"),
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- VNode::Component(_) => todo!(" not iimplemented yet"),
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- }
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-}
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-
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-/// Build a DOM element by recursively creating DOM nodes for this element and it's
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-/// children, it's children's children, etc.
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-pub fn create_element_node(node: &dioxus_core::nodes::VElement) -> CreatedNode<Element> {
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- let document = web_sys::window().unwrap().document().unwrap();
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-
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- // TODO: enable svg again
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- // let element = if html_validation::is_svg_namespace(&node.tag_name) {
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- // document
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- // .create_element_ns(Some("http://www.w3.org/2000/svg"), &node.tag_name)
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- // .unwrap()
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- // } else {
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- let element = document.create_element(&node.tag_name).unwrap();
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- // };
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-
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- let mut closures = HashMap::new();
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-
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- node.attributes
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- .iter()
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- .map(|f| (f.name, f.value))
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- .for_each(|(name, value)| {
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- if name == "unsafe_inner_html" {
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- element.set_inner_html(value);
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-
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- return;
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- }
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-
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- element
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- .set_attribute(name, value)
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- .expect("Set element attribute in create element");
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- });
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-
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- // if node.events.0.len() > 0 {
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- // let unique_id = create_unique_identifier();
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-
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- // element
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- // .set_attribute("data-vdom-id".into(), &unique_id.to_string())
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- // .expect("Could not set attribute on element");
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-
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- // closures.insert(unique_id, vec![]);
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-
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- // node.events.0.iter().for_each(|(onevent, callback)| {
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- // // onclick -> click
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- // let event = &onevent[2..];
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-
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- // let current_elem: &EventTarget = element.dyn_ref().unwrap();
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-
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- // current_elem
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- // .add_event_listener_with_callback(event, callback.as_ref().as_ref().unchecked_ref())
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- // .unwrap();
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-
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- // closures
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- // .get_mut(&unique_id)
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- // .unwrap()
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- // .push(Rc::clone(callback));
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- // });
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- // }
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-
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- let mut previous_node_was_text = false;
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-
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- node.children.iter().for_each(|child| {
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- // log::info!("Patching child");
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- match child {
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- VNode::Text(text_node) => {
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- let current_node = element.as_ref() as &web_sys::Node;
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-
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- // We ensure that the text siblings are patched by preventing the browser from merging
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- // neighboring text nodes. Originally inspired by some of React's work from 2016.
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- // -> https://reactjs.org/blog/2016/04/07/react-v15.html#major-changes
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- // -> https://github.com/facebook/react/pull/5753
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- //
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- // `ptns` = Percy text node separator
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- if previous_node_was_text {
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- let separator = document.create_comment("ptns");
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- current_node
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- .append_child(separator.as_ref() as &web_sys::Node)
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- .unwrap();
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- }
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|
-
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- current_node
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- .append_child(&create_text_node(&text_node))
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- .unwrap();
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|
|
-
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- previous_node_was_text = true;
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|
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- }
|
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|
|
- VNode::Element(element_node) => {
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|
|
- previous_node_was_text = false;
|
|
|
|
-
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|
|
|
- let child = create_element_node(element_node);
|
|
|
|
- // let child = element_node.create_element_node();
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|
|
|
- let child_elem: Element = child.node;
|
|
|
|
-
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|
|
- closures.extend(child.closures);
|
|
|
|
-
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|
|
- element.append_child(&child_elem).unwrap();
|
|
|
|
- }
|
|
|
|
- VNode::Suspended => {
|
|
|
|
- todo!("Not yet supported")
|
|
|
|
- }
|
|
|
|
- VNode::Component(_) => {
|
|
|
|
- todo!("Not yet supported")
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- });
|
|
|
|
-
|
|
|
|
- // TODO: connect on mount to the event system somehow
|
|
|
|
- // if let Some(on_create_elem) = node.events.0.get("on_create_elem") {
|
|
|
|
- // let on_create_elem: &js_sys::Function = on_create_elem.as_ref().as_ref().unchecked_ref();
|
|
|
|
- // on_create_elem
|
|
|
|
- // .call1(&wasm_bindgen::JsValue::NULL, &element)
|
|
|
|
- // .unwrap();
|
|
|
|
- // }
|
|
|
|
-
|
|
|
|
- CreatedNode {
|
|
|
|
- node: element,
|
|
|
|
- closures,
|
|
|
|
- }
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-/// Return a `Text` element from a `VirtualNode`, typically right before adding it
|
|
|
|
-/// into the DOM.
|
|
|
|
-pub fn create_text_node(node: &VText) -> Text {
|
|
|
|
- let document = web_sys::window().unwrap().document().unwrap();
|
|
|
|
- document.create_text_node(&node.text)
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-// /// For any listeners in the tree, attach the sender closure.
|
|
|
|
-// /// When a event is triggered, we convert it into the synthetic event type and dump it back in the Virtual Dom's queu
|
|
|
|
-// fn attach_listeners(sender: &UnboundedSender<EventTrigger>, dom: &VirtualDom) {}
|
|
|
|
-// fn render_diffs() {}
|
|
|