1mod platforms;
2mod system_window_tabs;
3
4use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
5use gpui::{
6 AnyElement, App, Context, Decorations, Entity, Hsla, InteractiveElement, IntoElement,
7 MouseButton, ParentElement, StatefulInteractiveElement, Styled, Window, WindowControlArea, div,
8 px,
9};
10use project::DisableAiSettings;
11use settings::Settings;
12use smallvec::SmallVec;
13use std::mem;
14use ui::{
15 prelude::*,
16 utils::{TRAFFIC_LIGHT_PADDING, platform_title_bar_height},
17};
18
19use crate::{
20 platforms::{platform_linux, platform_windows},
21 system_window_tabs::SystemWindowTabs,
22};
23
24pub use system_window_tabs::{
25 DraggedWindowTab, MergeAllWindows, MoveTabToNewWindow, ShowNextWindowTab, ShowPreviousWindowTab,
26};
27
28pub struct PlatformTitleBar {
29 id: ElementId,
30 platform_style: PlatformStyle,
31 children: SmallVec<[AnyElement; 2]>,
32 should_move: bool,
33 system_window_tabs: Entity<SystemWindowTabs>,
34 workspace_sidebar_open: bool,
35 sidebar_has_notifications: bool,
36}
37
38impl PlatformTitleBar {
39 pub fn new(id: impl Into<ElementId>, cx: &mut Context<Self>) -> Self {
40 let platform_style = PlatformStyle::platform();
41 let system_window_tabs = cx.new(|_cx| SystemWindowTabs::new());
42
43 Self {
44 id: id.into(),
45 platform_style,
46 children: SmallVec::new(),
47 should_move: false,
48 system_window_tabs,
49 workspace_sidebar_open: false,
50 sidebar_has_notifications: false,
51 }
52 }
53
54 pub fn title_bar_color(&self, window: &mut Window, cx: &mut Context<Self>) -> Hsla {
55 if cfg!(any(target_os = "linux", target_os = "freebsd")) {
56 if window.is_window_active() && !self.should_move {
57 cx.theme().colors().title_bar_background
58 } else {
59 cx.theme().colors().title_bar_inactive_background
60 }
61 } else {
62 cx.theme().colors().title_bar_background
63 }
64 }
65
66 pub fn set_children<T>(&mut self, children: T)
67 where
68 T: IntoIterator<Item = AnyElement>,
69 {
70 self.children = children.into_iter().collect();
71 }
72
73 pub fn init(cx: &mut App) {
74 SystemWindowTabs::init(cx);
75 }
76
77 pub fn is_workspace_sidebar_open(&self) -> bool {
78 self.workspace_sidebar_open
79 }
80
81 pub fn set_workspace_sidebar_open(&mut self, open: bool, cx: &mut Context<Self>) {
82 self.workspace_sidebar_open = open;
83 cx.notify();
84 }
85
86 pub fn sidebar_has_notifications(&self) -> bool {
87 self.sidebar_has_notifications
88 }
89
90 pub fn set_sidebar_has_notifications(
91 &mut self,
92 has_notifications: bool,
93 cx: &mut Context<Self>,
94 ) {
95 self.sidebar_has_notifications = has_notifications;
96 cx.notify();
97 }
98
99 pub fn is_multi_workspace_enabled(cx: &App) -> bool {
100 cx.has_flag::<AgentV2FeatureFlag>() && !DisableAiSettings::get_global(cx).disable_ai
101 }
102}
103
104impl Render for PlatformTitleBar {
105 fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
106 let supported_controls = window.window_controls();
107 let decorations = window.window_decorations();
108 let height = platform_title_bar_height(window);
109 let titlebar_color = self.title_bar_color(window, cx);
110 let close_action = Box::new(workspace::CloseWindow);
111 let children = mem::take(&mut self.children);
112
113 let is_multiworkspace_sidebar_open =
114 PlatformTitleBar::is_multi_workspace_enabled(cx) && self.is_workspace_sidebar_open();
115
116 let title_bar = h_flex()
117 .window_control_area(WindowControlArea::Drag)
118 .w_full()
119 .h(height)
120 .map(|this| {
121 this.on_mouse_down_out(cx.listener(move |this, _ev, _window, _cx| {
122 this.should_move = false;
123 }))
124 .on_mouse_up(
125 gpui::MouseButton::Left,
126 cx.listener(move |this, _ev, _window, _cx| {
127 this.should_move = false;
128 }),
129 )
130 .on_mouse_down(
131 gpui::MouseButton::Left,
132 cx.listener(move |this, _ev, _window, _cx| {
133 this.should_move = true;
134 }),
135 )
136 .on_mouse_move(cx.listener(move |this, _ev, window, _| {
137 if this.should_move {
138 this.should_move = false;
139 window.start_window_move();
140 }
141 }))
142 })
143 .map(|this| {
144 // Note: On Windows the title bar behavior is handled by the platform implementation.
145 this.id(self.id.clone())
146 .when(self.platform_style == PlatformStyle::Mac, |this| {
147 this.on_click(|event, window, _| {
148 if event.click_count() == 2 {
149 window.titlebar_double_click();
150 }
151 })
152 })
153 .when(self.platform_style == PlatformStyle::Linux, |this| {
154 this.on_click(|event, window, _| {
155 if event.click_count() == 2 {
156 window.zoom_window();
157 }
158 })
159 })
160 })
161 .map(|this| {
162 if window.is_fullscreen() {
163 this.pl_2()
164 } else if self.platform_style == PlatformStyle::Mac
165 && !is_multiworkspace_sidebar_open
166 {
167 this.pl(px(TRAFFIC_LIGHT_PADDING))
168 } else {
169 this.pl_2()
170 }
171 })
172 .map(|el| match decorations {
173 Decorations::Server => el,
174 Decorations::Client { tiling, .. } => el
175 .when(!(tiling.top || tiling.right), |el| {
176 el.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
177 })
178 .when(
179 !(tiling.top || tiling.left) && !is_multiworkspace_sidebar_open,
180 |el| el.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
181 )
182 // this border is to avoid a transparent gap in the rounded corners
183 .mt(px(-1.))
184 .mb(px(-1.))
185 .border(px(1.))
186 .border_color(titlebar_color),
187 })
188 .bg(titlebar_color)
189 .content_stretch()
190 .child(
191 div()
192 .id(self.id.clone())
193 .flex()
194 .flex_row()
195 .items_center()
196 .justify_between()
197 .overflow_x_hidden()
198 .w_full()
199 .children(children),
200 )
201 .when(!window.is_fullscreen(), |title_bar| {
202 match self.platform_style {
203 PlatformStyle::Mac => title_bar,
204 PlatformStyle::Linux => {
205 if matches!(decorations, Decorations::Client { .. }) {
206 title_bar
207 .child(platform_linux::LinuxWindowControls::new(close_action))
208 .when(supported_controls.window_menu, |titlebar| {
209 titlebar
210 .on_mouse_down(MouseButton::Right, move |ev, window, _| {
211 window.show_window_menu(ev.position)
212 })
213 })
214 } else {
215 title_bar
216 }
217 }
218 PlatformStyle::Windows => {
219 title_bar.child(platform_windows::WindowsWindowControls::new(height))
220 }
221 }
222 });
223
224 v_flex()
225 .w_full()
226 .child(title_bar)
227 .child(self.system_window_tabs.clone().into_any_element())
228 }
229}
230
231impl ParentElement for PlatformTitleBar {
232 fn extend(&mut self, elements: impl IntoIterator<Item = AnyElement>) {
233 self.children.extend(elements)
234 }
235}