Add guarded Text alias rename with complete preview and editor reuse

crates/oa-desktop/src/views.rs

@@ -350,6 +350,13 @@ pub fn view(app: &App) -> View<'_, Message> {
     if app.pending.is_some() {
         return modal(root,column![text("Keep your changes?").size(21),text("Save the model and pending edits before continuing. Invalid drafts stay available for correction.").size(13),row![action("Cancel",Message::Cancel),action("Discard changes",Message::Discard),button("Save & continue").padding(10).on_press(Message::SaveAndContinue)].spacing(8)].spacing(16).into());
     }
+    if app.source_rename.open() {
+        return modal_width(
+            root,
+            crate::app::source_rename::dialog(app),
+            (app.window_size.width - 32.).clamp(120., 760.),
+        );
+    }
     root
 }
 fn modal<'a>(base: View<'a, Message>, content: View<'a, Message>) -> View<'a, Message> {
@@ -1004,6 +1011,13 @@ fn source_files(app: &App) -> View<'_, Message> {
 
 fn source(app: &App) -> View<'_, Message> {
     use crate::source_navigation::Event as SourceEvent;
+    let (undo_label, undo_message) = match app.source_rename_undo_message() {
+        Some(message) => ("Undo rename", Some(message)),
+        None => (
+            "Undo model",
+            (app.document.can_undo() && !app.source_dirty()).then_some(Message::Undo),
+        ),
+    };
     let navigation: View<'_, Message> = if app.source_navigation.open {
         column![
             row![
@@ -1118,7 +1132,8 @@ fn source(app: &App) -> View<'_, Message> {
         .on_action(Message::SourceEdit)
         .key_binding({
             let context = app.source_symbol_context();
-            move |press| source_binding(press, &context)
+            let rename = app.source_rename_begin();
+            move |press| source_binding(press, &context, Some(&rename))
         })
         .font(Font::MONOSPACE)
         .size(14)
@@ -1146,8 +1161,8 @@ fn source(app: &App) -> View<'_, Message> {
                 row![
                     action("Undo text", Message::SourceUndo),
                     action("Redo text", Message::SourceRedo),
-                    button(text("Undo model").size(12)).padding([8,10]).style(style::nav)
-                        .on_press_maybe((app.document.can_undo() && !app.source_dirty()).then_some(Message::Undo)),
+                    button(text(undo_label).size(12)).padding([8,10]).style(style::nav)
+                        .on_press_maybe(undo_message),
                     button(text("Redo model").size(12)).padding([8,10]).style(style::nav)
                         .on_press_maybe((app.document.can_redo() && !app.source_dirty()).then_some(Message::Redo)),
                     action("Find / go to…", Message::SourceNavigation(SourceEvent::Open(false))),
@@ -1174,6 +1189,7 @@ fn source(app: &App) -> View<'_, Message> {
                 row![
                     action("Definition · F12", app.source_symbol_message(crate::source_navigation::SymbolEvent::Query(crate::source_navigation::query::Action::Definition))),
                     action("References · Shift F12", app.source_symbol_message(crate::source_navigation::SymbolEvent::Query(crate::source_navigation::query::Action::References))),
+                    action("Rename alias · F2", app.source_rename_message()),
                     button(text("Back · Alt ←").size(12)).padding([8, 10]).style(style::nav)
                         .on_press_maybe((app.source_symbols.back.iter().any(|entry| entry.session == app.source_workspace.session())).then(|| app.source_symbol_message(crate::source_navigation::SymbolEvent::Back))),
                 ].spacing(7),
@@ -1225,13 +1241,23 @@ fn source_layout<'a, Renderer: iced::advanced::text::Renderer + 'a>(
     .height(Fill)
     .into()
 }
-fn source_binding(
+pub(crate) fn source_binding(
     press: widget::text_editor::KeyPress,
     context: &crate::source_navigation::SymbolContext,
+    rename: Option<&crate::app::source_rename::Begin>,
 ) -> Option<widget::text_editor::Binding<Message>> {
     use crate::source_navigation::{SymbolEvent, query::Action};
     use iced::keyboard::{Key, key::Named};
     use widget::text_editor::{Binding, Status};
+    if matches!(press.status, Status::Focused { .. })
+        && press.modifiers.is_empty()
+        && press.key == Key::Named(Named::F2)
+        && let Some(begin) = rename
+    {
+        return Some(Binding::Custom(Message::SourceRename(
+            crate::app::source_rename::Event::Begin(begin.clone()),
+        )));
+    }
     // Windows owns Alt+Space for its window menu. Iced's default binding would
     // otherwise insert a supplied space payload, even after that menu closes.
     // Keep Ctrl+Alt (AltGr), shifted input, and ordinary Space unchanged.
@@ -1273,7 +1299,7 @@ fn source_binding(
 }
 
 #[cfg(all(test, debug_assertions))]
-mod source_tests {
+pub(crate) mod source_tests {
     use super::*;
     use iced::advanced::{
         Layout, Shell, graphics, layout, renderer, text as shaped, widget as core_widget,
@@ -1282,7 +1308,7 @@ mod source_tests {
     use iced::{Background, Color, Pixels, Point, Rectangle, Size, Transformation, Vector};
 
     // Measure real Iced paragraphs/editor text without constructing a window or GPU.
-    struct FontLayout;
+    pub(crate) struct FontLayout;
     impl renderer::Renderer for FontLayout {
         fn start_layer(&mut self, _: Rectangle) {}
         fn end_layer(&mut self) {}
@@ -1612,7 +1638,7 @@ mod source_tests {
                         .size(14)
                         .padding(16)
                         .height(Fill)
-                        .key_binding(|press| source_binding(press, &context))
+                        .key_binding(|press| source_binding(press, &context, None))
                         .into();
                 let mut tree = core_widget::Tree::new(editor.as_widget());
                 let size = Size::new(600., 240.);