1use gpui::AppContext;
  2
  3// actions!(
  4//     editor,
  5//     [
  6//         LineDown,
  7//         LineUp,
  8//         HalfPageDown,
  9//         HalfPageUp,
 10//         PageDown,
 11//         PageUp,
 12//         NextScreen,
 13//         ScrollCursorTop,
 14//         ScrollCursorCenter,
 15//         ScrollCursorBottom,
 16//     ]
 17// );
 18
 19pub fn init(cx: &mut AppContext) {
 20    // todo!()
 21    // cx.add_action(Editor::next_screen);
 22    // cx.add_action(Editor::scroll_cursor_top);
 23    // cx.add_action(Editor::scroll_cursor_center);
 24    // cx.add_action(Editor::scroll_cursor_bottom);
 25    // cx.add_action(|this: &mut Editor, _: &LineDown, cx| {
 26    //     this.scroll_screen(&ScrollAmount::Line(1.), cx)
 27    // });
 28    // cx.add_action(|this: &mut Editor, _: &LineUp, cx| {
 29    //     this.scroll_screen(&ScrollAmount::Line(-1.), cx)
 30    // });
 31    // cx.add_action(|this: &mut Editor, _: &HalfPageDown, cx| {
 32    //     this.scroll_screen(&ScrollAmount::Page(0.5), cx)
 33    // });
 34    // cx.add_action(|this: &mut Editor, _: &HalfPageUp, cx| {
 35    //     this.scroll_screen(&ScrollAmount::Page(-0.5), cx)
 36    // });
 37    // cx.add_action(|this: &mut Editor, _: &PageDown, cx| {
 38    //     this.scroll_screen(&ScrollAmount::Page(1.), cx)
 39    // });
 40    // cx.add_action(|this: &mut Editor, _: &PageUp, cx| {
 41    //     this.scroll_screen(&ScrollAmount::Page(-1.), cx)
 42    // });
 43}
 44
 45// impl Editor {
 46//     pub fn next_screen(&mut self, _: &NextScreen, cx: &mut ViewContext<Editor>) -> Option<()> {
 47//         if self.take_rename(true, cx).is_some() {
 48//             return None;
 49//         }
 50
 51//         if self.mouse_context_menu.read(cx).visible() {
 52//             return None;
 53//         }
 54
 55//         if matches!(self.mode, EditorMode::SingleLine) {
 56//             cx.propagate_action();
 57//             return None;
 58//         }
 59//         self.request_autoscroll(Autoscroll::Next, cx);
 60//         Some(())
 61//     }
 62
 63//     pub fn scroll(
 64//         &mut self,
 65//         scroll_position: Vector2F,
 66//         axis: Option<Axis>,
 67//         cx: &mut ViewContext<Self>,
 68//     ) {
 69//         self.scroll_manager.update_ongoing_scroll(axis);
 70//         self.set_scroll_position(scroll_position, cx);
 71//     }
 72
 73//     fn scroll_cursor_top(editor: &mut Editor, _: &ScrollCursorTop, cx: &mut ViewContext<Editor>) {
 74//         let snapshot = editor.snapshot(cx).display_snapshot;
 75//         let scroll_margin_rows = editor.vertical_scroll_margin() as u32;
 76
 77//         let mut new_screen_top = editor.selections.newest_display(cx).head();
 78//         *new_screen_top.row_mut() = new_screen_top.row().saturating_sub(scroll_margin_rows);
 79//         *new_screen_top.column_mut() = 0;
 80//         let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);
 81//         let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);
 82
 83//         editor.set_scroll_anchor(
 84//             ScrollAnchor {
 85//                 anchor: new_anchor,
 86//                 offset: Default::default(),
 87//             },
 88//             cx,
 89//         )
 90//     }
 91
 92//     fn scroll_cursor_center(
 93//         editor: &mut Editor,
 94//         _: &ScrollCursorCenter,
 95//         cx: &mut ViewContext<Editor>,
 96//     ) {
 97//         let snapshot = editor.snapshot(cx).display_snapshot;
 98//         let visible_rows = if let Some(visible_rows) = editor.visible_line_count() {
 99//             visible_rows as u32
100//         } else {
101//             return;
102//         };
103
104//         let mut new_screen_top = editor.selections.newest_display(cx).head();
105//         *new_screen_top.row_mut() = new_screen_top.row().saturating_sub(visible_rows / 2);
106//         *new_screen_top.column_mut() = 0;
107//         let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);
108//         let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);
109
110//         editor.set_scroll_anchor(
111//             ScrollAnchor {
112//                 anchor: new_anchor,
113//                 offset: Default::default(),
114//             },
115//             cx,
116//         )
117//     }
118
119//     fn scroll_cursor_bottom(
120//         editor: &mut Editor,
121//         _: &ScrollCursorBottom,
122//         cx: &mut ViewContext<Editor>,
123//     ) {
124//         let snapshot = editor.snapshot(cx).display_snapshot;
125//         let scroll_margin_rows = editor.vertical_scroll_margin() as u32;
126//         let visible_rows = if let Some(visible_rows) = editor.visible_line_count() {
127//             visible_rows as u32
128//         } else {
129//             return;
130//         };
131
132//         let mut new_screen_top = editor.selections.newest_display(cx).head();
133//         *new_screen_top.row_mut() = new_screen_top
134//             .row()
135//             .saturating_sub(visible_rows.saturating_sub(scroll_margin_rows));
136//         *new_screen_top.column_mut() = 0;
137//         let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);
138//         let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);
139
140//         editor.set_scroll_anchor(
141//             ScrollAnchor {
142//                 anchor: new_anchor,
143//                 offset: Default::default(),
144//             },
145//             cx,
146//         )
147//     }
148// }