terminal_button.rs

  1use context_menu::{ContextMenu, ContextMenuItem};
  2use gpui::{
  3    elements::*,
  4    impl_internal_actions,
  5    platform::{CursorStyle, MouseButton},
  6    AppContext, Element, ElementBox, Entity, RenderContext, View, ViewContext, ViewHandle,
  7    WeakModelHandle, WeakViewHandle,
  8};
  9use settings::Settings;
 10use std::any::TypeId;
 11use terminal::Terminal;
 12use workspace::{dock::FocusDock, item::ItemHandle, NewTerminal, StatusItemView, Workspace};
 13
 14use crate::TerminalView;
 15
 16#[derive(Clone, PartialEq)]
 17pub struct DeployTerminalMenu;
 18
 19#[derive(Clone, PartialEq)]
 20pub struct FocusTerminal {
 21    terminal_handle: WeakModelHandle<Terminal>,
 22}
 23
 24impl_internal_actions!(terminal, [FocusTerminal, DeployTerminalMenu]);
 25
 26pub fn init(cx: &mut AppContext) {
 27    cx.add_action(TerminalButton::deploy_terminal_menu);
 28    cx.add_action(TerminalButton::focus_terminal);
 29}
 30
 31pub struct TerminalButton {
 32    workspace: WeakViewHandle<Workspace>,
 33    popup_menu: ViewHandle<ContextMenu>,
 34}
 35
 36impl Entity for TerminalButton {
 37    type Event = ();
 38}
 39
 40impl View for TerminalButton {
 41    fn ui_name() -> &'static str {
 42        "TerminalButton"
 43    }
 44
 45    fn render(&mut self, cx: &mut RenderContext<'_, Self>) -> ElementBox {
 46        let workspace = self.workspace.upgrade(cx);
 47        let project = match workspace {
 48            Some(workspace) => workspace.read(cx).project().read(cx),
 49            None => return Empty::new().boxed(),
 50        };
 51
 52        let focused_view = cx.focused_view_id(cx.window_id());
 53        let active = focused_view
 54            .map(|view_id| {
 55                cx.view_type_id(cx.window_id(), view_id) == Some(TypeId::of::<TerminalView>())
 56            })
 57            .unwrap_or(false);
 58
 59        let has_terminals = !project.local_terminal_handles().is_empty();
 60        let terminal_count = project.local_terminal_handles().len() as i32;
 61        let theme = cx.global::<Settings>().theme.clone();
 62
 63        Stack::new()
 64            .with_child(
 65                MouseEventHandler::<Self>::new(0, cx, {
 66                    let theme = theme.clone();
 67                    move |state, _cx| {
 68                        let style = theme
 69                            .workspace
 70                            .status_bar
 71                            .sidebar_buttons
 72                            .item
 73                            .style_for(state, active);
 74
 75                        Flex::row()
 76                            .with_child(
 77                                Svg::new("icons/terminal_12.svg")
 78                                    .with_color(style.icon_color)
 79                                    .constrained()
 80                                    .with_width(style.icon_size)
 81                                    .aligned()
 82                                    .named("terminals-icon"),
 83                            )
 84                            .with_children(has_terminals.then(|| {
 85                                Label::new(terminal_count.to_string(), style.label.text.clone())
 86                                    .contained()
 87                                    .with_style(style.label.container)
 88                                    .aligned()
 89                                    .boxed()
 90                            }))
 91                            .constrained()
 92                            .with_height(style.icon_size)
 93                            .contained()
 94                            .with_style(style.container)
 95                            .boxed()
 96                    }
 97                })
 98                .with_cursor_style(CursorStyle::PointingHand)
 99                .on_click(MouseButton::Left, move |_, cx| {
100                    if has_terminals {
101                        cx.dispatch_action(DeployTerminalMenu);
102                    } else {
103                        if !active {
104                            cx.dispatch_action(FocusDock);
105                        }
106                    };
107                })
108                .with_tooltip::<Self, _>(
109                    0,
110                    "Show Terminal".into(),
111                    Some(Box::new(FocusDock)),
112                    theme.tooltip.clone(),
113                    cx,
114                )
115                .boxed(),
116            )
117            .with_child(
118                ChildView::new(&self.popup_menu, cx)
119                    .aligned()
120                    .top()
121                    .right()
122                    .boxed(),
123            )
124            .boxed()
125    }
126}
127
128impl TerminalButton {
129    pub fn new(workspace: ViewHandle<Workspace>, cx: &mut ViewContext<Self>) -> Self {
130        cx.observe(&workspace, |_, _, cx| cx.notify()).detach();
131        Self {
132            workspace: workspace.downgrade(),
133            popup_menu: cx.add_view(|cx| {
134                let mut menu = ContextMenu::new(cx);
135                menu.set_position_mode(OverlayPositionMode::Local);
136                menu
137            }),
138        }
139    }
140
141    pub fn deploy_terminal_menu(
142        &mut self,
143        _action: &DeployTerminalMenu,
144        cx: &mut ViewContext<Self>,
145    ) {
146        let mut menu_options = vec![ContextMenuItem::item("New Terminal", NewTerminal)];
147
148        if let Some(workspace) = self.workspace.upgrade(cx) {
149            let project = workspace.read(cx).project().read(cx);
150            let local_terminal_handles = project.local_terminal_handles();
151
152            if !local_terminal_handles.is_empty() {
153                menu_options.push(ContextMenuItem::Separator)
154            }
155
156            for local_terminal_handle in local_terminal_handles {
157                if let Some(terminal) = local_terminal_handle.upgrade(cx) {
158                    menu_options.push(ContextMenuItem::item(
159                        terminal.read(cx).title(),
160                        FocusTerminal {
161                            terminal_handle: local_terminal_handle.clone(),
162                        },
163                    ))
164                }
165            }
166        }
167
168        self.popup_menu.update(cx, |menu, cx| {
169            menu.show(
170                Default::default(),
171                AnchorCorner::BottomRight,
172                menu_options,
173                cx,
174            );
175        });
176    }
177
178    pub fn focus_terminal(&mut self, action: &FocusTerminal, cx: &mut ViewContext<Self>) {
179        if let Some(workspace) = self.workspace.upgrade(cx) {
180            workspace.update(cx, |workspace, cx| {
181                let terminal = workspace
182                    .items_of_type::<TerminalView>(cx)
183                    .find(|terminal| {
184                        terminal.read(cx).model().downgrade() == action.terminal_handle
185                    });
186                if let Some(terminal) = terminal {
187                    workspace.activate_item(&terminal, cx);
188                }
189            });
190        }
191    }
192}
193
194impl StatusItemView for TerminalButton {
195    fn set_active_pane_item(&mut self, _: Option<&dyn ItemHandle>, cx: &mut ViewContext<Self>) {
196        cx.notify();
197    }
198}