summaryrefslogtreecommitdiff
path: root/editors/microsoft-edit/files/patch-src_tui.rs
diff options
context:
space:
mode:
Diffstat (limited to 'editors/microsoft-edit/files/patch-src_tui.rs')
-rw-r--r--editors/microsoft-edit/files/patch-src_tui.rs421
1 files changed, 421 insertions, 0 deletions
diff --git a/editors/microsoft-edit/files/patch-src_tui.rs b/editors/microsoft-edit/files/patch-src_tui.rs
new file mode 100644
index 000000000000..14d8bcbac081
--- /dev/null
+++ b/editors/microsoft-edit/files/patch-src_tui.rs
@@ -0,0 +1,421 @@
+--- src/tui.rs.orig 2025-05-18 18:11:22 UTC
++++ src/tui.rs
+@@ -640,6 +640,7 @@ impl Tui {
+
+ tree,
+ last_modal: None,
++ focused_node: None,
+ next_block_id_mixin: 0,
+ needs_settling: false,
+
+@@ -653,6 +654,9 @@ impl Tui {
+ // out where is to do a binary search of commenting out code in main.rs.
+ debug_assert!(ctx.tree.current_node.borrow().stack_parent.is_none());
+
++ // End the root node.
++ ctx.block_end();
++
+ // Ensure that focus doesn't escape the active modal.
+ if let Some(node) = ctx.last_modal
+ && !self.is_subtree_focused(&node.borrow())
+@@ -684,18 +688,8 @@ impl Tui {
+ // Remove any unknown nodes from the focus path.
+ // It's important that we do this after the tree has been swapped out,
+ // so that pop_focusable_node() has access to the newest version of the tree.
+- let focus_path_changed = self.pop_focusable_node(focus_path_pop_min);
+- needs_settling |= focus_path_changed;
++ needs_settling |= self.pop_focusable_node(focus_path_pop_min);
+
+- // If some elements went away and the focus path changed above, we ignore tab presses.
+- // It may otherwise lead to weird situations where focus moves unexpectedly.
+- if !focus_path_changed
+- && !ctx.input_consumed
+- && let Some(input) = ctx.input_keyboard
+- {
+- needs_settling |= self.move_focus(input);
+- }
+-
+ // `needs_more_settling()` depends on the current value
+ // of `settling_have` and so we increment it first.
+ self.settling_have += 1;
+@@ -1213,117 +1207,6 @@ impl Tui {
+ last_before != last_after
+ }
+
+- // TODO: Move this into `block_end()` and run it whenever the block is a `focus_well`.
+- // It makes no sense otherwise that all input handling occurs in the controls, except for this.
+- fn move_focus(&mut self, input: InputKey) -> bool {
+- if !matches!(input, vk::TAB | SHIFT_TAB | vk::UP | vk::DOWN | vk::LEFT | vk::RIGHT) {
+- return false;
+- }
+-
+- let focused_id = self.focused_node_path.last().cloned().unwrap_or(0);
+- let Some(focused) = self.prev_node_map.get(focused_id) else {
+- debug_assert!(false); // The caller should've cleaned up the focus path.
+- return false;
+- };
+-
+- let mut focused_start = focused;
+- let mut root = focused;
+-
+- // Figure out if we're inside a focus void (a container that doesn't
+- // allow tabbing inside), and in that case, toss the focus to it.
+- //
+- // Also, figure out the container within which the focus must be contained.
+- // This way, tab/shift-tab only moves within the same window.
+- // The ROOT_ID node has no parent, and the others have a float attribute.
+- // If the root is the focused node, it should of course not move upward.
+- loop {
+- let root_node = root.borrow();
+- if root_node.attributes.focus_well {
+- break;
+- }
+- if root_node.attributes.focus_void {
+- focused_start = root;
+- }
+- root = match root_node.parent {
+- Some(parent) => parent,
+- None => break,
+- }
+- }
+-
+- let forward;
+- let min_depth;
+- match input {
+- SHIFT_TAB | vk::TAB => {
+- forward = input == vk::TAB;
+- min_depth = usize::MAX;
+- }
+- vk::UP | vk::DOWN => {
+- forward = input == vk::DOWN;
+- min_depth = usize::MAX;
+- }
+- vk::LEFT | vk::RIGHT => {
+- // Find the cell within a row within a table that we're in.
+- // To do so we'll use a circular buffer of the last 3 nodes while we travel up.
+- let mut buf = [None; 3];
+- let mut idx = buf.len() - 1;
+- let mut node = focused_start;
+-
+- loop {
+- idx = (idx + 1) % buf.len();
+- buf[idx] = Some(node);
+- if let NodeContent::Table(..) = &node.borrow().content {
+- break;
+- }
+- if ptr::eq(node, root) {
+- return false;
+- }
+- node = match node.borrow().parent {
+- Some(parent) => parent,
+- None => return false,
+- }
+- }
+-
+- // The current `idx` points to the table.
+- // The last item is the row.
+- // The 2nd to last item is the cell.
+- let Some(row) = buf[(idx + 3 - 1) % buf.len()] else {
+- return false;
+- };
+- let Some(cell) = buf[(idx + 3 - 2) % buf.len()] else {
+- return false;
+- };
+-
+- root = row;
+- focused_start = cell;
+- forward = input == vk::RIGHT;
+- min_depth = root.borrow().depth;
+- }
+- _ => return false,
+- }
+-
+- let mut focused_next = focused_start;
+- Tree::visit_all(root, focused_start, forward, |node| {
+- let n = node.borrow();
+- if ptr::eq(node, root) {
+- VisitControl::Continue
+- } else if n.attributes.focusable && !ptr::eq(node, focused_start) {
+- focused_next = node;
+- VisitControl::Stop
+- } else if n.attributes.focus_void || n.depth >= min_depth {
+- VisitControl::SkipChildren
+- } else {
+- VisitControl::Continue
+- }
+- });
+-
+- if ptr::eq(focused_next, focused_start) {
+- false
+- } else {
+- Tui::build_node_path(Some(focused_next), &mut self.focused_node_path);
+- true
+- }
+- }
+-
+ // Scroll the focused node(s) into view inside scrollviews
+ fn scroll_to_focused(&mut self) -> bool {
+ let focused_id = self.focused_node_path.last().cloned().unwrap_or(0);
+@@ -1375,6 +1258,7 @@ pub struct Context<'a, 'input> {
+
+ tree: Tree<'a>,
+ last_modal: Option<&'a NodeCell<'a>>,
++ focused_node: Option<&'a NodeCell<'a>>,
+ next_block_id_mixin: u64,
+ needs_settling: bool,
+
+@@ -1484,8 +1368,83 @@ impl<'a> Context<'a, '_> {
+ /// Ends the current UI block, returning to its parent container.
+ pub fn block_end(&mut self) {
+ self.tree.pop_stack();
++ self.block_end_move_focus();
+ }
+
++ fn block_end_move_focus(&mut self) {
++ // At this point, it's more like "focus_well?" instead of "focus_well!".
++ let focus_well = self.tree.last_node;
++
++ // Remember the focused node, if any, because once the code below runs,
++ // we need it for the `Tree::visit_all` call.
++ if self.is_focused() {
++ self.focused_node = Some(focus_well);
++ }
++
++ // Filter down to nodes that are focus wells and contain the focus.
++ // They're basically the "tab container".
++ if !focus_well.borrow().attributes.focus_well {
++ return;
++ }
++
++ // The mere fact that there's a `focused_node` indicates that we're the
++ // first `block_end()` call that's a focus well and also contains the focus.
++ let Some(focused) = self.focused_node else {
++ return;
++ };
++
++ // Filter down to Tab/Shift+Tab inputs.
++ if self.input_consumed {
++ return;
++ }
++ let Some(input) = self.input_keyboard else {
++ return;
++ };
++ if !matches!(input, SHIFT_TAB | vk::TAB) {
++ return;
++ }
++
++ let forward = input == vk::TAB;
++ let mut focused_start = focused;
++ let mut focused_next = focused;
++
++ // We may be in a focus void right now (= doesn't want to be tabbed into),
++ // so first we must go up the tree until we're outside of it.
++ loop {
++ if ptr::eq(focused_start, focus_well) {
++ // If we hit the root / focus well, we weren't in a focus void,
++ // and can reset `focused_before` to the current focused node.
++ focused_start = focused;
++ break;
++ }
++
++ focused_start = focused_start.borrow().parent.unwrap();
++ if focused_start.borrow().attributes.focus_void {
++ break;
++ }
++ }
++
++ Tree::visit_all(focus_well, focused_start, forward, |node| {
++ let n = node.borrow();
++ if n.attributes.focusable && !ptr::eq(node, focused_start) {
++ focused_next = node;
++ VisitControl::Stop
++ } else if n.attributes.focus_void {
++ VisitControl::SkipChildren
++ } else {
++ VisitControl::Continue
++ }
++ });
++
++ if ptr::eq(focused_next, focused_start) {
++ return;
++ }
++
++ Tui::build_node_path(Some(focused_next), &mut self.tui.focused_node_path);
++ self.set_input_consumed();
++ self.needs_rerender();
++ }
++
+ /// Mixes in an extra value to the next UI block's ID for uniqueness.
+ /// Use this when you build a list of items with the same classname.
+ pub fn next_block_id_mixin(&mut self, id: u64) {
+@@ -1796,6 +1755,8 @@ impl<'a> Context<'a, '_> {
+ debug_assert!(matches!(parent.content, NodeContent::Table(_)));
+
+ self.block_end();
++ self.table_end_row();
++
+ self.next_block_id_mixin(parent.child_count as u64);
+ }
+ }
+@@ -1803,6 +1764,10 @@ impl<'a> Context<'a, '_> {
+ self.block_begin("row");
+ }
+
++ fn table_end_row(&mut self) {
++ self.table_row_move_focus();
++ }
++
+ /// Ends the current table block.
+ pub fn table_end(&mut self) {
+ let current_node = self.tree.current_node.borrow();
+@@ -1811,11 +1776,136 @@ impl<'a> Context<'a, '_> {
+ // current_node will refer to the table. Otherwise, it'll refer to the current row.
+ if !matches!(current_node.content, NodeContent::Table(_)) {
+ self.block_end();
++ self.table_end_row();
+ }
+
+ self.block_end(); // table
++ self.table_end_move_focus();
+ }
+
++ fn table_row_move_focus(&mut self) {
++ // Filter down to table rows that are focused.
++ if !self.contains_focus() {
++ return;
++ }
++
++ // Filter down to left/right inputs.
++ if self.input_consumed {
++ return;
++ }
++ let Some(input) = self.input_keyboard else {
++ return;
++ };
++ if !matches!(input, vk::LEFT | vk::RIGHT) {
++ return;
++ }
++
++ let row = self.tree.last_node;
++ let Some(&focused_cell_id) = self.tui.focused_node_path.get(row.borrow().depth + 1) else {
++ return;
++ };
++
++ let mut prev_next = NodeSiblings { prev: None, next: None };
++ let mut focused = None;
++
++ // Iterate through the cells in the row, looking for the focused cell.
++ // Take note of the previous and next focusable cells around the focused one.
++ for cell in Tree::iterate_siblings(row.borrow().children.first) {
++ let n = cell.borrow();
++ if n.id == focused_cell_id {
++ focused = Some(cell);
++ } else if n.attributes.focusable {
++ if focused.is_none() {
++ prev_next.prev = Some(cell);
++ } else {
++ prev_next.next = Some(cell);
++ break;
++ }
++ }
++ }
++
++ if focused.is_none() {
++ return;
++ }
++
++ let forward = input == vk::RIGHT;
++ let children_idx = if forward { NodeChildren::FIRST } else { NodeChildren::LAST };
++ let siblings_idx = if forward { NodeSiblings::NEXT } else { NodeSiblings::PREV };
++ let Some(focused_next) =
++ prev_next.get(siblings_idx).or_else(|| row.borrow().children.get(children_idx))
++ else {
++ return;
++ };
++
++ Tui::build_node_path(Some(focused_next), &mut self.tui.focused_node_path);
++ self.set_input_consumed();
++ self.needs_rerender();
++ }
++
++ fn table_end_move_focus(&mut self) {
++ // Filter down to table rows that are focused.
++ if !self.contains_focus() {
++ return;
++ }
++
++ // Filter down to up/down inputs.
++ if self.input_consumed {
++ return;
++ }
++ let Some(input) = self.input_keyboard else {
++ return;
++ };
++ if !matches!(input, vk::UP | vk::DOWN) {
++ return;
++ }
++
++ let table = self.tree.last_node;
++ if table.borrow().child_count <= 1 {
++ // If there's just one row, we can't move focus up or down.
++ return;
++ }
++
++ let Some(&focused_row_id) = self.tui.focused_node_path.get(table.borrow().depth + 1) else {
++ return;
++ };
++
++ let mut prev_next = NodeSiblings { prev: None, next: None };
++ let mut focused = None;
++
++ // Iterate through the row in the table, looking for the focused row.
++ // Take note of the previous and next focusable rows around the focused one.
++ for cell in Tree::iterate_siblings(table.borrow().children.first) {
++ let n = cell.borrow();
++ if n.id == focused_row_id {
++ focused = Some(cell);
++ } else if n.attributes.focusable {
++ if focused.is_none() {
++ prev_next.prev = Some(cell);
++ } else {
++ prev_next.next = Some(cell);
++ break;
++ }
++ }
++ }
++
++ if focused.is_none() {
++ return;
++ }
++
++ let forward = input == vk::DOWN;
++ let children_idx = if forward { NodeChildren::FIRST } else { NodeChildren::LAST };
++ let siblings_idx = if forward { NodeSiblings::NEXT } else { NodeSiblings::PREV };
++ let Some(focused_next) =
++ prev_next.get(siblings_idx).or_else(|| table.borrow().children.get(children_idx))
++ else {
++ return;
++ };
++
++ Tui::build_node_path(Some(focused_next), &mut self.tui.focused_node_path);
++ self.set_input_consumed();
++ self.needs_rerender();
++ }
++
+ /// Creates a simple text label.
+ pub fn label(&mut self, classname: &'static str, text: &str) {
+ self.styled_label_begin(classname);
+@@ -3312,9 +3402,10 @@ impl<'a> Tree<'a> {
+ /// Completes the current node and moves focus to the parent.
+ fn pop_stack(&mut self) {
+ let current_node = self.current_node.borrow();
+- let stack_parent = current_node.stack_parent.unwrap();
+- self.last_node = self.current_node;
+- self.current_node = stack_parent;
++ if let Some(stack_parent) = current_node.stack_parent {
++ self.last_node = self.current_node;
++ self.current_node = stack_parent;
++ }
+ }
+
+ fn iterate_siblings(