Simplify code by providin cx.current() = (view, doc).

TODO.md

@@ -23,6 +23,8 @@
 - [ ] repeat insert/command -> transaction
 - [ ] repeat selection
 
+- [] jump to alt buffer
+
 - [ ] load toml configs, themes, tabsize/identation
 
 - [ ] draw separator line between views

helix-term/src/ui/completion.rs

@@ -44,10 +44,7 @@ impl Completion {
                         // doc.state = snapshot.clone();
                     }
                     PromptEvent::Validate => {
-                        let view = editor.view();
-                        let view_id = view.id;
-                        let id = view.doc;
-                        let doc = &mut editor.documents[id];
+                        let (view, doc) = editor.current();
 
                         // revert state to what it was before the last update
                         // doc.state = snapshot.clone();
@@ -92,18 +89,18 @@ impl Completion {
                         }
 
                         // if more text was entered, remove it
-                        let cursor = doc.selection(view_id).cursor();
+                        let cursor = doc.selection(view.id).cursor();
                         if trigger_offset < cursor {
                             let remove = Transaction::change(
                                 doc.text(),
                                 vec![(trigger_offset, cursor, None)].into_iter(),
                             );
-                            doc.apply(&remove, view_id);
+                            doc.apply(&remove, view.id);
                         }
 
                         let transaction =
                             util::generate_transaction_from_edits(doc.text(), vec![edit]);
-                        doc.apply(&transaction, view_id);
+                        doc.apply(&transaction, view.id);
                     }
                     _ => (),
                 };
@@ -127,10 +124,7 @@ impl Component for Completion {
         {
             // recompute menu based on matches
             let menu = self.popup.contents();
-            let view = cx.editor.view();
-            let view_id = view.id;
-            let id = view.doc;
-            let doc = cx.editor.document(id).unwrap();
+            let (view, doc) = cx.editor.current();
 
             // cx.hooks()
             // cx.add_hook(enum type,  ||)
@@ -142,7 +136,7 @@ impl Component for Completion {
             // TODO: hooks should get processed immediately so maybe do it after select!(), before
             // looping?
 
-            let cursor = doc.selection(view_id).cursor();
+            let cursor = doc.selection(view.id).cursor();
             if self.trigger_offset <= cursor {
                 let fragment = doc.text().slice(self.trigger_offset..cursor);
                 // ^ problem seems to be that we handle events here before the editor layer, so the

helix-term/src/ui/editor.rs

@@ -487,14 +487,12 @@ impl Component for EditorView {
                 EventResult::Consumed(None)
             }
             Event::Key(event) => {
-                let view = cx.editor.view();
-                let view_id = view.id;
-                let id = view.doc;
-                let mode = cx.editor.document(id).unwrap().mode();
+                let (view, doc) = cx.editor.current();
+                let mode = doc.mode();
 
                 let mut cxt = commands::Context {
+                    view_id: view.id,
                     editor: &mut cx.editor,
-                    view_id,
                     count: 1,
                     callback: None,
                     callbacks: cx.callbacks,
@@ -524,9 +522,10 @@ impl Component for EditorView {
                 // appease borrowck
                 let callback = cxt.callback.take();
 
-                cx.editor.ensure_cursor_in_view(cx.editor.tree.focus);
+                let (view, doc) = cx.editor.current();
+                view.ensure_cursor_in_view(doc);
 
-                if mode == Mode::Normal && cx.editor.document(id).unwrap().mode() == Mode::Insert {
+                if mode == Mode::Normal && doc.mode() == Mode::Insert {
                     // HAXX: if we just entered insert mode from normal, clear key buf
                     // and record the command that got us into this mode.
 

helix-term/src/ui/mod.rs

@@ -45,11 +45,8 @@ pub fn regex_prompt(
             match event {
                 PromptEvent::Abort => {
                     // TODO: also revert text
-                    let view = editor.view();
-                    let view_id = view.id;
-                    let id = view.doc;
-                    let doc = &mut editor.documents[id];
-                    doc.set_selection(view_id, snapshot.clone());
+                    let (view, doc) = editor.current();
+                    doc.set_selection(view.id, snapshot.clone());
                 }
                 PromptEvent::Validate => {
                     // TODO: push_jump to store selection just before jump
@@ -62,19 +59,15 @@ pub fn regex_prompt(
 
                     match Regex::new(input) {
                         Ok(regex) => {
-                            // let view = &mut editor.view_mut();
-                            let view = editor.view();
-                            let view_id = view.id;
-                            let id = view.doc;
-                            let doc = &mut editor.documents[id];
+                            let (view, doc) = editor.current();
 
                             // revert state to what it was before the last update
                             // TODO: also revert text
-                            doc.set_selection(view_id, snapshot.clone());
+                            doc.set_selection(view.id, snapshot.clone());
 
                             fun(doc, regex);
 
-                            editor.ensure_cursor_in_view(view_id);
+                            view.ensure_cursor_in_view(doc);
                         }
                         Err(_err) => (), // TODO: mark command line as error
                     }

helix-view/src/editor.rs

@@ -172,6 +172,12 @@ impl Editor {
         self.tree.is_empty()
     }
 
+    pub fn current(&mut self) -> (&mut View, &mut Document) {
+        let view = self.tree.get_mut(self.tree.focus);
+        let doc = &mut self.documents[view.doc];
+        (view, doc)
+    }
+
     pub fn view(&self) -> &View {
         self.tree.get(self.tree.focus)
     }