terminal_button.rs

  1use context_menu::{ContextMenu, ContextMenuItem};
  2use gpui::{
  3    elements::*, impl_internal_actions, CursorStyle, Element, ElementBox, Entity, MouseButton,
  4    MutableAppContext, RenderContext, View, ViewContext, ViewHandle, WeakModelHandle,
  5    WeakViewHandle,
  6};
  7use settings::Settings;
  8use std::any::TypeId;
  9use terminal::Terminal;
 10use workspace::{dock::FocusDock, item::ItemHandle, NewTerminal, StatusItemView, Workspace};
 11
 12use crate::TerminalView;
 13
 14#[derive(Clone, PartialEq)]
 15pub struct DeployTerminalMenu;
 16
 17#[derive(Clone, PartialEq)]
 18pub struct FocusTerminal {
 19    terminal_handle: WeakModelHandle<Terminal>,
 20}
 21
 22//actions!(terminal, [DeployTerminalMenu]);
 23impl_internal_actions!(terminal, [FocusTerminal, DeployTerminalMenu]);
 24
 25pub fn init(cx: &mut MutableAppContext) {
 26    cx.add_action(TerminalButton::deploy_terminal_menu);
 27    cx.add_action(TerminalButton::focus_terminal);
 28}
 29
 30pub struct TerminalButton {
 31    workspace: WeakViewHandle<Workspace>,
 32    popup_menu: ViewHandle<ContextMenu>,
 33}
 34
 35impl Entity for TerminalButton {
 36    type Event = ();
 37}
 38
 39impl View for TerminalButton {
 40    fn ui_name() -> &'static str {
 41        "TerminalButton"
 42    }
 43
 44    fn render(&mut self, cx: &mut RenderContext<'_, Self>) -> ElementBox {
 45        let workspace = self.workspace.upgrade(cx);
 46        let project = match workspace {
 47            Some(workspace) => workspace.read(cx).project().read(cx),
 48            None => return Empty::new().boxed(),
 49        };
 50
 51        let focused_view = cx.focused_view_id(cx.window_id());
 52        let active = focused_view
 53            .map(|view_id| {
 54                cx.view_type_id(cx.window_id(), view_id) == Some(TypeId::of::<TerminalView>())
 55            })
 56            .unwrap_or(false);
 57
 58        let has_terminals = !project.local_terminal_handles().is_empty();
 59        let theme = cx.global::<Settings>().theme.clone();
 60
 61        Stack::new()
 62            .with_child(
 63                MouseEventHandler::<Self>::new(0, cx, {
 64                    let theme = theme.clone();
 65                    move |state, _| {
 66                        let style = theme
 67                            .workspace
 68                            .status_bar
 69                            .sidebar_buttons
 70                            .item
 71                            .style_for(state, active);
 72
 73                        Svg::new("icons/terminal_12.svg")
 74                            .with_color(style.icon_color)
 75                            .constrained()
 76                            .with_width(style.icon_size)
 77                            .with_height(style.icon_size)
 78                            .contained()
 79                            .with_style(style.container)
 80                            .boxed()
 81                    }
 82                })
 83                .with_cursor_style(CursorStyle::PointingHand)
 84                .on_click(MouseButton::Left, move |_, cx| {
 85                    if has_terminals {
 86                        cx.dispatch_action(DeployTerminalMenu);
 87                    } else {
 88                        if !active {
 89                            cx.dispatch_action(FocusDock);
 90                        }
 91                    };
 92                })
 93                .with_tooltip::<Self, _>(
 94                    0,
 95                    "Show Terminal".into(),
 96                    Some(Box::new(FocusDock)),
 97                    theme.tooltip.clone(),
 98                    cx,
 99                )
100                .boxed(),
101            )
102            .with_child(
103                ChildView::new(&self.popup_menu, cx)
104                    .aligned()
105                    .top()
106                    .right()
107                    .boxed(),
108            )
109            .boxed()
110    }
111}
112
113impl TerminalButton {
114    pub fn new(workspace: ViewHandle<Workspace>, cx: &mut ViewContext<Self>) -> Self {
115        // When terminal moves, redraw so that the icon and toggle status matches.
116        cx.subscribe(&workspace, |_, _, _, cx| cx.notify()).detach();
117        Self {
118            workspace: workspace.downgrade(),
119            popup_menu: cx.add_view(|cx| {
120                let mut menu = ContextMenu::new(cx);
121                menu.set_position_mode(OverlayPositionMode::Local);
122                menu
123            }),
124        }
125    }
126
127    pub fn deploy_terminal_menu(
128        &mut self,
129        _action: &DeployTerminalMenu,
130        cx: &mut ViewContext<Self>,
131    ) {
132        let mut menu_options = vec![ContextMenuItem::item("New Terminal", NewTerminal)];
133
134        if let Some(workspace) = self.workspace.upgrade(cx) {
135            let project = workspace.read(cx).project().read(cx);
136            let local_terminal_handles = project.local_terminal_handles();
137
138            if !local_terminal_handles.is_empty() {
139                menu_options.push(ContextMenuItem::Separator)
140            }
141
142            for local_terminal_handle in local_terminal_handles {
143                if let Some(terminal) = local_terminal_handle.upgrade(cx) {
144                    menu_options.push(ContextMenuItem::item(
145                        terminal.read(cx).title(),
146                        FocusTerminal {
147                            terminal_handle: local_terminal_handle.clone(),
148                        },
149                    ))
150                }
151            }
152        }
153
154        self.popup_menu.update(cx, |menu, cx| {
155            menu.show(
156                Default::default(),
157                AnchorCorner::BottomRight,
158                menu_options,
159                cx,
160            );
161        });
162    }
163
164    pub fn focus_terminal(&mut self, action: &FocusTerminal, cx: &mut ViewContext<Self>) {
165        if let Some(workspace) = self.workspace.upgrade(cx) {
166            workspace.update(cx, |workspace, cx| {
167                let terminal = workspace
168                    .items_of_type::<TerminalView>(cx)
169                    .find(|terminal| {
170                        terminal.read(cx).model().downgrade() == action.terminal_handle
171                    });
172                if let Some(terminal) = terminal {
173                    workspace.activate_item(&terminal, cx);
174                }
175            });
176        }
177    }
178}
179
180impl StatusItemView for TerminalButton {
181    fn set_active_pane_item(&mut self, _: Option<&dyn ItemHandle>, cx: &mut ViewContext<Self>) {
182        cx.notify();
183    }
184}