Revert "windows: better looking titlebar" and follow-up (#9392)

Thorsten Ball created

This reverts #9053 and #9375 because they introduced a regression on
`main` that broke the titlebars on macOS:


![image](https://github.com/zed-industries/zed/assets/1185253/d046003b-5c66-4a42-9385-623f5d58c9a4)

Two things are off:

- Left padding is missing
- Titlebar height is less than it was before, which means the
traffic-light buttons are not centered vertically

What @as-cii and I noticed while looking into this: the `cfg!(macos)`
macros that were used don't work like that. You need to check for
`cfg!(target = "macos")` etc. Means that on macOS we never used the
macOS-specific code because the condition was always false.

Overall height, we're not sure about.

Release Notes:

- N/A

Change summary

Cargo.toml                                       |  11 
crates/collab_ui/src/collab_titlebar_item.rs     |  36 +
crates/gpui/src/platform.rs                      |  11 
crates/gpui/src/platform/linux/wayland/window.rs |  11 
crates/gpui/src/platform/linux/x11/window.rs     |  11 
crates/gpui/src/platform/mac/window.rs           |  20 
crates/gpui/src/platform/test/window.rs          |  18 
crates/gpui/src/platform/windows/display.rs      |   3 
crates/gpui/src/platform/windows/text_system.rs  |  17 
crates/gpui/src/platform/windows/util.rs         |  26 -
crates/gpui/src/platform/windows/window.rs       | 377 ++---------------
crates/gpui/src/window.rs                        |  31 -
crates/ui/src/components.rs                      |   2 
crates/ui/src/components/platform_titlebar.rs    | 226 ----------
crates/workspace/src/workspace.rs                |   8 
15 files changed, 121 insertions(+), 687 deletions(-)

Detailed changes

Cargo.toml 🔗

@@ -343,17 +343,6 @@ features = [
     "Win32_Globalization",
     "Win32_Graphics_DirectComposition",
     "Win32_Graphics_Gdi",
-    "Win32_UI_Controls",
-    "Win32_Graphics_DirectWrite",
-    "Win32_UI_WindowsAndMessaging",
-    "Win32_UI_Input_KeyboardAndMouse",
-    "Win32_UI_Shell",
-    "Win32_System_Com",
-    "Win32_UI_HiDpi",
-    "Win32_UI_Controls",
-    "Win32_System_SystemInformation",
-    "Win32_System_SystemServices",
-    "Win32_System_Time",
     "Win32_Security",
     "Win32_Storage_FileSystem",
     "Win32_System_Com",

crates/collab_ui/src/collab_titlebar_item.rs 🔗

@@ -13,12 +13,12 @@ use rpc::proto;
 use std::sync::Arc;
 use theme::ActiveTheme;
 use ui::{
-    h_flex, platform_titlebar, popover_menu, prelude::*, Avatar, AvatarAudioStatusIndicator,
-    Button, ButtonLike, ButtonStyle, ContextMenu, Icon, IconButton, IconName, TintColor, Tooltip,
+    h_flex, popover_menu, prelude::*, Avatar, AvatarAudioStatusIndicator, Button, ButtonLike,
+    ButtonStyle, ContextMenu, Icon, IconButton, IconName, TintColor, Tooltip,
 };
 use util::ResultExt;
 use vcs_menu::{build_branch_list, BranchList, OpenRecent as ToggleVcsMenu};
-use workspace::{notifications::NotifyResultExt, Workspace};
+use workspace::{notifications::NotifyResultExt, titlebar_height, Workspace};
 
 const MAX_PROJECT_NAME_LENGTH: usize = 40;
 const MAX_BRANCH_NAME_LENGTH: usize = 40;
@@ -58,18 +58,26 @@ impl Render for CollabTitlebarItem {
         let project_id = self.project.read(cx).remote_id();
         let workspace = self.workspace.upgrade();
 
-        platform_titlebar("collab-titlebar")
-            .titlebar_bg(cx.theme().colors().title_bar_background)
-            // note: on windows titlebar behaviour is handled by the platform implementation
-            .when(cfg!(not(windows)), |this| {
-                this.on_click(|event, cx| {
-                    if event.up.click_count == 2 {
-                        cx.zoom_window();
-                    }
-                })
-            })
-            .px_2()
+        h_flex()
+            .id("titlebar")
             .justify_between()
+            .w_full()
+            .h(titlebar_height(cx))
+            .map(|this| {
+                if cx.is_fullscreen() {
+                    this.pl_2()
+                } else {
+                    // Use pixels here instead of a rem-based size because the macOS traffic
+                    // lights are a static size, and don't scale with the rest of the UI.
+                    this.pl(px(80.))
+                }
+            })
+            .bg(cx.theme().colors().title_bar_background)
+            .on_click(|event, cx| {
+                if event.up.click_count == 2 {
+                    cx.zoom_window();
+                }
+            })
             // left side
             .child(
                 h_flex()

crates/gpui/src/platform.rs 🔗

@@ -22,10 +22,10 @@ mod test;
 mod windows;
 
 use crate::{
-    Action, AnyWindowHandle, AsyncWindowContext, BackgroundExecutor, Bounds, DevicePixels,
-    DispatchEventResult, Font, FontId, FontMetrics, FontRun, ForegroundExecutor, GlobalPixels,
-    GlyphId, Keymap, LineLayout, Pixels, PlatformInput, Point, RenderGlyphParams,
-    RenderImageParams, RenderSvgParams, Scene, SharedString, Size, Task, TaskLabel, WindowContext,
+    Action, AnyWindowHandle, AsyncWindowContext, BackgroundExecutor, Bounds, DevicePixels, Font,
+    FontId, FontMetrics, FontRun, ForegroundExecutor, GlobalPixels, GlyphId, Keymap, LineLayout,
+    Pixels, PlatformInput, Point, RenderGlyphParams, RenderImageParams, RenderSvgParams, Scene,
+    SharedString, Size, Task, TaskLabel, WindowContext,
 };
 use anyhow::Result;
 use async_task::Runnable;
@@ -168,7 +168,6 @@ unsafe impl Send for DisplayId {}
 
 pub(crate) trait PlatformWindow: HasWindowHandle + HasDisplayHandle {
     fn bounds(&self) -> Bounds<GlobalPixels>;
-    fn is_maximized(&self) -> bool;
     fn content_size(&self) -> Size<Pixels>;
     fn scale_factor(&self) -> f32;
     fn titlebar_height(&self) -> Pixels;
@@ -195,7 +194,7 @@ pub(crate) trait PlatformWindow: HasWindowHandle + HasDisplayHandle {
     fn toggle_fullscreen(&self);
     fn is_fullscreen(&self) -> bool;
     fn on_request_frame(&self, callback: Box<dyn FnMut()>);
-    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> DispatchEventResult>);
+    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>);
     fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>);
     fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>);
     fn on_fullscreen(&self, callback: Box<dyn FnMut(bool)>);

crates/gpui/src/platform/linux/wayland/window.rs 🔗

@@ -29,7 +29,7 @@ use crate::{
 #[derive(Default)]
 pub(crate) struct Callbacks {
     request_frame: Option<Box<dyn FnMut()>>,
-    input: Option<Box<dyn FnMut(crate::PlatformInput) -> crate::DispatchEventResult>>,
+    input: Option<Box<dyn FnMut(crate::PlatformInput) -> bool>>,
     active_status_change: Option<Box<dyn FnMut(bool)>>,
     resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
     fullscreen: Option<Box<dyn FnMut(bool)>>,
@@ -237,7 +237,7 @@ impl WaylandWindowState {
 
     pub fn handle_input(&self, input: PlatformInput) {
         if let Some(ref mut fun) = self.callbacks.borrow_mut().input {
-            if !fun(input.clone()).propagate {
+            if fun(input.clone()) {
                 return;
             }
         }
@@ -279,11 +279,6 @@ impl PlatformWindow for WaylandWindow {
         unimplemented!()
     }
 
-    // todo(linux)
-    fn is_maximized(&self) -> bool {
-        unimplemented!()
-    }
-
     fn content_size(&self) -> Size<Pixels> {
         let inner = self.0.inner.borrow_mut();
         Size {
@@ -383,7 +378,7 @@ impl PlatformWindow for WaylandWindow {
         self.0.callbacks.borrow_mut().request_frame = Some(callback);
     }
 
-    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
+    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
         self.0.callbacks.borrow_mut().input = Some(callback);
     }
 

crates/gpui/src/platform/linux/x11/window.rs 🔗

@@ -31,7 +31,7 @@ use super::X11Display;
 #[derive(Default)]
 struct Callbacks {
     request_frame: Option<Box<dyn FnMut()>>,
-    input: Option<Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>>,
+    input: Option<Box<dyn FnMut(PlatformInput) -> bool>>,
     active_status_change: Option<Box<dyn FnMut(bool)>>,
     resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
     fullscreen: Option<Box<dyn FnMut(bool)>>,
@@ -303,7 +303,7 @@ impl X11WindowState {
 
     pub fn handle_input(&self, input: PlatformInput) {
         if let Some(ref mut fun) = self.callbacks.borrow_mut().input {
-            if !fun(input.clone()).propagate {
+            if fun(input.clone()) {
                 return;
             }
         }
@@ -333,11 +333,6 @@ impl PlatformWindow for X11Window {
             .map(|v| GlobalPixels(v as f32))
     }
 
-    // todo(linux)
-    fn is_maximized(&self) -> bool {
-        unimplemented!()
-    }
-
     fn content_size(&self) -> Size<Pixels> {
         self.0.inner.borrow_mut().content_size()
     }
@@ -456,7 +451,7 @@ impl PlatformWindow for X11Window {
         self.0.callbacks.borrow_mut().request_frame = Some(callback);
     }
 
-    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
+    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
         self.0.callbacks.borrow_mut().input = Some(callback);
     }
 

crates/gpui/src/platform/mac/window.rs 🔗

@@ -324,7 +324,7 @@ struct MacWindowState {
     renderer: renderer::Renderer,
     kind: WindowKind,
     request_frame_callback: Option<Box<dyn FnMut()>>,
-    event_callback: Option<Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>>,
+    event_callback: Option<Box<dyn FnMut(PlatformInput) -> bool>>,
     activate_callback: Option<Box<dyn FnMut(bool)>>,
     resize_callback: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
     fullscreen_callback: Option<Box<dyn FnMut(bool)>>,
@@ -411,14 +411,6 @@ impl MacWindowState {
         self.display_link = None;
     }
 
-    fn is_maximized(&self) -> bool {
-        unsafe {
-            let bounds = self.bounds();
-            let screen_size = self.native_window.screen().visibleFrame().into();
-            bounds.size == screen_size
-        }
-    }
-
     fn is_fullscreen(&self) -> bool {
         unsafe {
             let style_mask = self.native_window.styleMask();
@@ -724,10 +716,6 @@ impl PlatformWindow for MacWindow {
         self.0.as_ref().lock().bounds()
     }
 
-    fn is_maximized(&self) -> bool {
-        self.0.as_ref().lock().is_maximized()
-    }
-
     fn content_size(&self) -> Size<Pixels> {
         self.0.as_ref().lock().content_size()
     }
@@ -980,7 +968,7 @@ impl PlatformWindow for MacWindow {
         self.0.as_ref().lock().request_frame_callback = Some(callback);
     }
 
-    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
+    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
         self.0.as_ref().lock().event_callback = Some(callback);
     }
 
@@ -1203,7 +1191,7 @@ extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent:
                     window_state.lock().previous_keydown_inserted_text = Some(text.clone());
                     if let Some(callback) = callback.as_mut() {
                         event.keystroke.ime_key = Some(text.clone());
-                        handled = !callback(PlatformInput::KeyDown(event)).propagate;
+                        handled = callback(PlatformInput::KeyDown(event));
                     }
                 }
             }
@@ -1216,7 +1204,7 @@ extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent:
             let is_held = event.is_held;
 
             if let Some(callback) = callback.as_mut() {
-                handled = !callback(PlatformInput::KeyDown(event)).propagate;
+                handled = callback(PlatformInput::KeyDown(event));
             }
 
             if !handled && is_held {

crates/gpui/src/platform/test/window.rs 🔗

@@ -1,7 +1,7 @@
 use crate::{
-    AnyWindowHandle, AtlasKey, AtlasTextureId, AtlasTile, Bounds, DispatchEventResult,
-    GlobalPixels, Pixels, PlatformAtlas, PlatformDisplay, PlatformInput, PlatformInputHandler,
-    PlatformWindow, Point, Size, TestPlatform, TileId, WindowAppearance, WindowParams,
+    AnyWindowHandle, AtlasKey, AtlasTextureId, AtlasTile, Bounds, GlobalPixels, Pixels,
+    PlatformAtlas, PlatformDisplay, PlatformInput, PlatformInputHandler, PlatformWindow, Point,
+    Size, TestPlatform, TileId, WindowAppearance, WindowParams,
 };
 use collections::HashMap;
 use parking_lot::Mutex;
@@ -20,7 +20,7 @@ pub(crate) struct TestWindowState {
     platform: Weak<TestPlatform>,
     sprite_atlas: Arc<dyn PlatformAtlas>,
     pub(crate) should_close_handler: Option<Box<dyn FnMut() -> bool>>,
-    input_callback: Option<Box<dyn FnMut(PlatformInput) -> DispatchEventResult>>,
+    input_callback: Option<Box<dyn FnMut(PlatformInput) -> bool>>,
     active_status_change_callback: Option<Box<dyn FnMut(bool)>>,
     resize_callback: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
     moved_callback: Option<Box<dyn FnMut()>>,
@@ -102,7 +102,7 @@ impl TestWindow {
         drop(lock);
         let result = callback(event);
         self.0.lock().input_callback = Some(callback);
-        !result.propagate
+        result
     }
 }
 
@@ -111,10 +111,6 @@ impl PlatformWindow for TestWindow {
         self.0.lock().bounds
     }
 
-    fn is_maximized(&self) -> bool {
-        unimplemented!()
-    }
-
     fn content_size(&self) -> Size<Pixels> {
         self.bounds().size.into()
     }
@@ -124,7 +120,7 @@ impl PlatformWindow for TestWindow {
     }
 
     fn titlebar_height(&self) -> Pixels {
-        32.0.into()
+        unimplemented!()
     }
 
     fn appearance(&self) -> WindowAppearance {
@@ -212,7 +208,7 @@ impl PlatformWindow for TestWindow {
 
     fn on_request_frame(&self, _callback: Box<dyn FnMut()>) {}
 
-    fn on_input(&self, callback: Box<dyn FnMut(crate::PlatformInput) -> DispatchEventResult>) {
+    fn on_input(&self, callback: Box<dyn FnMut(crate::PlatformInput) -> bool>) {
         self.0.lock().input_callback = Some(callback)
     }
 

crates/gpui/src/platform/windows/text_system.rs 🔗

@@ -5,9 +5,9 @@ use crate::{
 };
 use anyhow::{anyhow, Context, Ok, Result};
 use collections::HashMap;
-use cosmic_text::Font as CosmicTextFont;
 use cosmic_text::{
-    fontdb::Query, Attrs, AttrsList, BufferLine, CacheKey, Family, FontSystem, SwashCache,
+    fontdb::Query, Attrs, AttrsList, BufferLine, CacheKey, Family, Font as CosmicTextFont,
+    FontSystem, SwashCache,
 };
 use parking_lot::{RwLock, RwLockUpgradableReadGuard};
 use pathfinder_geometry::{
@@ -31,6 +31,10 @@ struct WindowsTextSystemState {
 impl WindowsTextSystem {
     pub(crate) fn new() -> Self {
         let mut font_system = FontSystem::new();
+
+        // todo(windows) make font loading non-blocking
+        font_system.db_mut().load_system_fonts();
+
         Self(RwLock::new(WindowsTextSystemState {
             font_system,
             swash_cache: SwashCache::new(),
@@ -218,11 +222,10 @@ impl WindowsTextSystemState {
             .get_font_matches(Attrs::new().family(cosmic_text::Family::Name(name)));
         for font in family.as_ref() {
             let font = self.font_system.get_font(*font).unwrap();
-            // TODO: figure out why this is causing fluent icons from loading
-            // if font.as_swash().charmap().map('m') == 0 {
-            //     self.font_system.db_mut().remove_face(font.id());
-            //     continue;
-            // };
+            if font.as_swash().charmap().map('m') == 0 {
+                self.font_system.db_mut().remove_face(font.id());
+                continue;
+            };
 
             let font_id = FontId(self.fonts.len());
             font_ids.push(font_id);

crates/gpui/src/platform/windows/util.rs 🔗

@@ -42,29 +42,3 @@ impl HiLoWord for LPARAM {
         (self.0 & 0xFFFF) as i16
     }
 }
-
-pub(crate) unsafe fn get_window_long(hwnd: HWND, nindex: WINDOW_LONG_PTR_INDEX) -> isize {
-    #[cfg(target_pointer_width = "64")]
-    unsafe {
-        GetWindowLongPtrW(hwnd, nindex)
-    }
-    #[cfg(target_pointer_width = "32")]
-    unsafe {
-        GetWindowLongW(hwnd, nindex) as isize
-    }
-}
-
-pub(crate) unsafe fn set_window_long(
-    hwnd: HWND,
-    nindex: WINDOW_LONG_PTR_INDEX,
-    dwnewlong: isize,
-) -> isize {
-    #[cfg(target_pointer_width = "64")]
-    unsafe {
-        SetWindowLongPtrW(hwnd, nindex, dwnewlong)
-    }
-    #[cfg(target_pointer_width = "32")]
-    unsafe {
-        SetWindowLongW(hwnd, nindex, dwnewlong as i32) as isize
-    }
-}

crates/gpui/src/platform/windows/window.rs 🔗

@@ -1,4 +1,6 @@
 #![deny(unsafe_op_in_unsafe_fn)]
+// todo(windows): remove
+#![allow(unused_variables)]
 
 use std::{
     any::Any,
@@ -12,7 +14,6 @@ use std::{
     sync::{Arc, Once},
 };
 
-use ::util::ResultExt;
 use blade_graphics as gpu;
 use futures::channel::oneshot::{self, Receiver};
 use itertools::Itertools;
@@ -27,7 +28,6 @@ use windows::{
         System::{Com::*, Ole::*, SystemServices::*},
         UI::{
             Controls::*,
-            HiDpi::*,
             Input::{Ime::*, KeyboardAndMouse::*},
             Shell::*,
             WindowsAndMessaging::*,
@@ -48,7 +48,6 @@ pub(crate) struct WindowsWindowInner {
     callbacks: RefCell<Callbacks>,
     platform_inner: Rc<WindowsPlatformInner>,
     handle: AnyWindowHandle,
-    scale_factor: f32,
 }
 
 impl WindowsWindowInner {
@@ -111,48 +110,9 @@ impl WindowsWindowInner {
             callbacks,
             platform_inner,
             handle,
-            scale_factor: 1.0,
         }
     }
 
-    fn is_maximized(&self) -> bool {
-        let mut placement = WINDOWPLACEMENT::default();
-        placement.length = std::mem::size_of::<WINDOWPLACEMENT>() as u32;
-        if unsafe { GetWindowPlacement(self.hwnd, &mut placement) }.is_ok() {
-            return placement.showCmd == SW_SHOWMAXIMIZED.0 as u32;
-        }
-        return false;
-    }
-
-    fn get_titlebar_rect(&self) -> anyhow::Result<RECT> {
-        let top_and_bottom_borders = 2;
-        let theme = unsafe { OpenThemeData(self.hwnd, w!("WINDOW")) };
-        let title_bar_size = unsafe {
-            GetThemePartSize(
-                theme,
-                HDC::default(),
-                WP_CAPTION.0,
-                CS_ACTIVE.0,
-                None,
-                TS_TRUE,
-            )
-        }?;
-        unsafe { CloseThemeData(theme) }?;
-
-        let mut height =
-            (title_bar_size.cy as f32 * self.scale_factor).round() as i32 + top_and_bottom_borders;
-
-        if self.is_maximized() {
-            let dpi = unsafe { GetDpiForWindow(self.hwnd) };
-            height += unsafe { (GetSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi) * 2) as i32 };
-        }
-
-        let mut rect = RECT::default();
-        unsafe { GetClientRect(self.hwnd, &mut rect) }?;
-        rect.bottom = rect.top + height;
-        Ok(rect)
-    }
-
     fn is_virtual_key_pressed(&self, vkey: VIRTUAL_KEY) -> bool {
         unsafe { GetKeyState(vkey.0 as i32) < 0 }
     }
@@ -176,30 +136,12 @@ impl WindowsWindowInner {
     fn handle_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
         log::debug!("msg: {msg}, wparam: {}, lparam: {}", wparam.0, lparam.0);
         match msg {
-            WM_ACTIVATE => self.handle_activate_msg(msg, wparam, lparam),
-            WM_CREATE => self.handle_create_msg(lparam),
             WM_MOVE => self.handle_move_msg(lparam),
             WM_SIZE => self.handle_size_msg(lparam),
-            WM_NCCALCSIZE => self.handle_calc_client_size(msg, wparam, lparam),
-            WM_DPICHANGED => self.handle_dpi_changed_msg(msg, wparam, lparam),
-            WM_NCHITTEST => self.handle_hit_test_msg(msg, wparam, lparam),
             WM_PAINT => self.handle_paint_msg(),
             WM_CLOSE => self.handle_close_msg(msg, wparam, lparam),
             WM_DESTROY => self.handle_destroy_msg(),
             WM_MOUSEMOVE => self.handle_mouse_move_msg(lparam, wparam),
-            WM_NCMOUSEMOVE => self.handle_nc_mouse_move_msg(msg, wparam, lparam),
-            WM_NCLBUTTONDOWN => {
-                self.handle_nc_mouse_down_msg(MouseButton::Left, msg, wparam, lparam)
-            }
-            WM_NCRBUTTONDOWN => {
-                self.handle_nc_mouse_down_msg(MouseButton::Right, msg, wparam, lparam)
-            }
-            WM_NCMBUTTONDOWN => {
-                self.handle_nc_mouse_down_msg(MouseButton::Middle, msg, wparam, lparam)
-            }
-            WM_NCLBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Left, msg, wparam, lparam),
-            WM_NCRBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Right, msg, wparam, lparam),
-            WM_NCMBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Middle, msg, wparam, lparam),
             WM_LBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Left, lparam),
             WM_RBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Right, lparam),
             WM_MBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Middle, lparam),
@@ -282,7 +224,7 @@ impl WindowsWindowInner {
 
     fn handle_paint_msg(&self) -> LRESULT {
         let mut paint_struct = PAINTSTRUCT::default();
-        let _hdc = unsafe { BeginPaint(self.hwnd, &mut paint_struct) };
+        let hdc = unsafe { BeginPaint(self.hwnd, &mut paint_struct) };
         let mut callbacks = self.callbacks.borrow_mut();
         if let Some(request_frame) = callbacks.request_frame.as_mut() {
             request_frame();
@@ -349,7 +291,7 @@ impl WindowsWindowInner {
                 pressed_button,
                 modifiers: self.current_modifiers(),
             };
-            if callback(PlatformInput::MouseMove(event)).default_prevented {
+            if callback(PlatformInput::MouseMove(event)) {
                 return LRESULT(0);
             }
         }
@@ -475,7 +417,7 @@ impl WindowsWindowInner {
             keystroke,
             is_held: lparam.0 & (0x1 << 30) > 0,
         };
-        if func(PlatformInput::KeyDown(event)).default_prevented {
+        if func(PlatformInput::KeyDown(event)) {
             self.invalidate_client_area();
             return LRESULT(0);
         }
@@ -492,14 +434,14 @@ impl WindowsWindowInner {
             return unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) };
         };
         let event = KeyUpEvent { keystroke };
-        if func(PlatformInput::KeyUp(event)).default_prevented {
+        if func(PlatformInput::KeyUp(event)) {
             self.invalidate_client_area();
             return LRESULT(0);
         }
         unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) }
     }
 
-    fn handle_keydown_msg(&self, _msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
+    fn handle_keydown_msg(&self, message: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
         let Some(keystroke) = self.parse_keydown_msg_keystroke(wparam) else {
             return LRESULT(1);
         };
@@ -510,14 +452,14 @@ impl WindowsWindowInner {
             keystroke,
             is_held: lparam.0 & (0x1 << 30) > 0,
         };
-        if func(PlatformInput::KeyDown(event)).default_prevented {
+        if func(PlatformInput::KeyDown(event)) {
             self.invalidate_client_area();
             return LRESULT(0);
         }
         LRESULT(1)
     }
 
-    fn handle_keyup_msg(&self, _msg: u32, wparam: WPARAM) -> LRESULT {
+    fn handle_keyup_msg(&self, message: u32, wparam: WPARAM) -> LRESULT {
         let Some(keystroke) = self.parse_keydown_msg_keystroke(wparam) else {
             return LRESULT(1);
         };
@@ -525,14 +467,14 @@ impl WindowsWindowInner {
             return LRESULT(1);
         };
         let event = KeyUpEvent { keystroke };
-        if func(PlatformInput::KeyUp(event)).default_prevented {
+        if func(PlatformInput::KeyUp(event)) {
             self.invalidate_client_area();
             return LRESULT(0);
         }
         LRESULT(1)
     }
 
-    fn handle_char_msg(&self, _msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
+    fn handle_char_msg(&self, message: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
         let Some(keystroke) = self.parse_char_msg_keystroke(wparam) else {
             return LRESULT(1);
         };
@@ -545,7 +487,7 @@ impl WindowsWindowInner {
             keystroke,
             is_held: lparam.0 & (0x1 << 30) > 0,
         };
-        if func(PlatformInput::KeyDown(event)).default_prevented {
+        if func(PlatformInput::KeyDown(event)) {
             self.invalidate_client_area();
             return LRESULT(0);
         }
@@ -573,7 +515,7 @@ impl WindowsWindowInner {
                 modifiers: self.current_modifiers(),
                 click_count: 1,
             };
-            if callback(PlatformInput::MouseDown(event)).default_prevented {
+            if callback(PlatformInput::MouseDown(event)) {
                 return LRESULT(0);
             }
         }
@@ -591,7 +533,7 @@ impl WindowsWindowInner {
                 modifiers: self.current_modifiers(),
                 click_count: 1,
             };
-            if callback(PlatformInput::MouseUp(event)).default_prevented {
+            if callback(PlatformInput::MouseUp(event)) {
                 return LRESULT(0);
             }
         }
@@ -636,7 +578,7 @@ impl WindowsWindowInner {
                 modifiers: self.current_modifiers(),
                 touch_phase: TouchPhase::Moved,
             };
-            if callback(PlatformInput::ScrollWheel(event)).default_prevented {
+            if callback(PlatformInput::ScrollWheel(event)) {
                 return LRESULT(0);
             }
         }
@@ -743,237 +685,12 @@ impl WindowsWindowInner {
         };
         func(input);
     }
-
-    /// SEE: https://learn.microsoft.com/en-us/windows/win32/winmsg/wm-nccalcsize
-    fn handle_calc_client_size(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
-        if wparam.0 == 0 {
-            return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) };
-        }
-
-        let dpi = unsafe { GetDpiForWindow(self.hwnd) };
-
-        let frame_x = unsafe { GetSystemMetricsForDpi(SM_CXFRAME, dpi) };
-        let frame_y = unsafe { GetSystemMetricsForDpi(SM_CYFRAME, dpi) };
-        let padding = unsafe { GetSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi) };
-
-        // wparam is TRUE so lparam points to an NCCALCSIZE_PARAMS structure
-        let mut params = lparam.0 as *mut NCCALCSIZE_PARAMS;
-        let mut requested_client_rect = unsafe { &mut ((*params).rgrc) };
-
-        requested_client_rect[0].right -= frame_x + padding;
-        requested_client_rect[0].left += frame_x + padding;
-        requested_client_rect[0].bottom -= frame_y + padding;
-
-        LRESULT(0)
-    }
-
-    fn handle_activate_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
-        if let Some(titlebar_rect) = self.get_titlebar_rect().log_err() {
-            unsafe { InvalidateRect(self.hwnd, Some(&titlebar_rect), FALSE) };
-        }
-        return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) };
-    }
-
-    fn handle_create_msg(&self, _lparam: LPARAM) -> LRESULT {
-        let mut size_rect = RECT::default();
-        unsafe { GetWindowRect(self.hwnd, &mut size_rect).log_err() };
-        let width = size_rect.right - size_rect.left;
-        let height = size_rect.bottom - size_rect.top;
-
-        self.size.set(Size {
-            width: GlobalPixels::from(width as f64),
-            height: GlobalPixels::from(height as f64),
-        });
-
-        // Inform the application of the frame change to force redrawing with the new
-        // client area that is extended into the title bar
-        unsafe {
-            SetWindowPos(
-                self.hwnd,
-                HWND::default(),
-                size_rect.left,
-                size_rect.top,
-                width,
-                height,
-                SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE,
-            )
-            .log_err()
-        };
-        LRESULT(0)
-    }
-
-    fn handle_dpi_changed_msg(&self, _msg: u32, _wparam: WPARAM, _lparam: LPARAM) -> LRESULT {
-        LRESULT(1)
-    }
-
-    fn handle_hit_test_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
-        // default handler for resize areas
-        let hit = unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) };
-        if matches!(
-            hit.0 as u32,
-            HTNOWHERE
-                | HTRIGHT
-                | HTLEFT
-                | HTTOPLEFT
-                | HTTOP
-                | HTTOPRIGHT
-                | HTBOTTOMRIGHT
-                | HTBOTTOM
-                | HTBOTTOMLEFT
-        ) {
-            return hit;
-        }
-
-        let dpi = unsafe { GetDpiForWindow(self.hwnd) };
-        let frame_y = unsafe { GetSystemMetricsForDpi(SM_CYFRAME, dpi) };
-        let padding = unsafe { GetSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi) };
-
-        let mut cursor_point = POINT {
-            x: lparam.signed_loword().into(),
-            y: lparam.signed_hiword().into(),
-        };
-        unsafe { ScreenToClient(self.hwnd, &mut cursor_point) };
-        if cursor_point.y > 0 && cursor_point.y < frame_y + padding {
-            return LRESULT(HTTOP as _);
-        }
-
-        let titlebar_rect = self.get_titlebar_rect();
-        if let Ok(titlebar_rect) = titlebar_rect {
-            if cursor_point.y < titlebar_rect.bottom {
-                let caption_btn_width = unsafe { GetSystemMetricsForDpi(SM_CXSIZE, dpi) };
-                if cursor_point.x >= titlebar_rect.right - caption_btn_width {
-                    return LRESULT(HTCLOSE as _);
-                } else if cursor_point.x >= titlebar_rect.right - caption_btn_width * 2 {
-                    return LRESULT(HTMAXBUTTON as _);
-                } else if cursor_point.x >= titlebar_rect.right - caption_btn_width * 3 {
-                    return LRESULT(HTMINBUTTON as _);
-                }
-
-                return LRESULT(HTCAPTION as _);
-            }
-        }
-
-        LRESULT(HTCLIENT as _)
-    }
-
-    fn handle_nc_mouse_move_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
-        let mut cursor_point = POINT {
-            x: lparam.signed_loword().into(),
-            y: lparam.signed_hiword().into(),
-        };
-        unsafe { ScreenToClient(self.hwnd, &mut cursor_point) };
-        let x = Pixels::from(cursor_point.x as f32);
-        let y = Pixels::from(cursor_point.y as f32);
-        self.mouse_position.set(Point { x, y });
-        let mut callbacks = self.callbacks.borrow_mut();
-        if let Some(callback) = callbacks.input.as_mut() {
-            let event = MouseMoveEvent {
-                position: Point { x, y },
-                pressed_button: None,
-                modifiers: self.current_modifiers(),
-            };
-            if callback(PlatformInput::MouseMove(event)).default_prevented {
-                return LRESULT(0);
-            }
-        }
-        drop(callbacks);
-        unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }
-    }
-
-    fn handle_nc_mouse_down_msg(
-        &self,
-        button: MouseButton,
-        msg: u32,
-        wparam: WPARAM,
-        lparam: LPARAM,
-    ) -> LRESULT {
-        let mut callbacks = self.callbacks.borrow_mut();
-        if let Some(callback) = callbacks.input.as_mut() {
-            let mut cursor_point = POINT {
-                x: lparam.signed_loword().into(),
-                y: lparam.signed_hiword().into(),
-            };
-            unsafe { ScreenToClient(self.hwnd, &mut cursor_point) };
-            let x = Pixels::from(cursor_point.x as f32);
-            let y = Pixels::from(cursor_point.y as f32);
-            let event = MouseDownEvent {
-                button: button.clone(),
-                position: Point { x, y },
-                modifiers: self.current_modifiers(),
-                click_count: 1,
-            };
-            if callback(PlatformInput::MouseDown(event)).default_prevented {
-                return LRESULT(0);
-            }
-        }
-        drop(callbacks);
-
-        match wparam.0 as u32 {
-            // Since these are handled in handle_nc_mouse_up_msg we must prevent the default window proc
-            HTMINBUTTON | HTMAXBUTTON | HTCLOSE => LRESULT(0),
-            _ => unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) },
-        }
-    }
-
-    fn handle_nc_mouse_up_msg(
-        &self,
-        button: MouseButton,
-        msg: u32,
-        wparam: WPARAM,
-        lparam: LPARAM,
-    ) -> LRESULT {
-        let mut callbacks = self.callbacks.borrow_mut();
-        if let Some(callback) = callbacks.input.as_mut() {
-            let mut cursor_point = POINT {
-                x: lparam.signed_loword().into(),
-                y: lparam.signed_hiword().into(),
-            };
-            unsafe { ScreenToClient(self.hwnd, &mut cursor_point) };
-            let x = Pixels::from(cursor_point.x as f32);
-            let y = Pixels::from(cursor_point.y as f32);
-            let event = MouseUpEvent {
-                button,
-                position: Point { x, y },
-                modifiers: self.current_modifiers(),
-                click_count: 1,
-            };
-            if callback(PlatformInput::MouseUp(event)).default_prevented {
-                return LRESULT(0);
-            }
-        }
-        drop(callbacks);
-
-        if button == MouseButton::Left {
-            match wparam.0 as u32 {
-                HTMINBUTTON => unsafe {
-                    ShowWindowAsync(self.hwnd, SW_MINIMIZE);
-                    return LRESULT(0);
-                },
-                HTMAXBUTTON => unsafe {
-                    if self.is_maximized() {
-                        ShowWindowAsync(self.hwnd, SW_NORMAL);
-                    } else {
-                        ShowWindowAsync(self.hwnd, SW_MAXIMIZE);
-                    }
-                    return LRESULT(0);
-                },
-                HTCLOSE => unsafe {
-                    PostMessageW(self.hwnd, WM_CLOSE, WPARAM::default(), LPARAM::default())
-                        .log_err();
-                    return LRESULT(0);
-                },
-                _ => {}
-            };
-        }
-
-        unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }
-    }
 }
 
 #[derive(Default)]
 struct Callbacks {
     request_frame: Option<Box<dyn FnMut()>>,
-    input: Option<Box<dyn FnMut(crate::PlatformInput) -> DispatchEventResult>>,
+    input: Option<Box<dyn FnMut(crate::PlatformInput) -> bool>>,
     active_status_change: Option<Box<dyn FnMut(bool)>>,
     resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
     fullscreen: Option<Box<dyn FnMut(bool)>>,
@@ -1001,6 +718,7 @@ impl WindowsWindow {
         handle: AnyWindowHandle,
         options: WindowParams,
     ) -> Self {
+        let dwexstyle = WINDOW_EX_STYLE::default();
         let classname = register_wnd_class();
         let windowname = HSTRING::from(
             options
@@ -1010,7 +728,7 @@ impl WindowsWindow {
                 .map(|title| title.as_ref())
                 .unwrap_or(""),
         );
-        let dwstyle = WS_THICKFRAME | WS_SYSMENU | WS_MAXIMIZEBOX | WS_MINIMIZEBOX;
+        let dwstyle = WS_OVERLAPPEDWINDOW & !WS_VISIBLE;
         let x = options.bounds.origin.x.0 as i32;
         let y = options.bounds.origin.y.0 as i32;
         let nwidth = options.bounds.size.width.0 as i32;
@@ -1026,7 +744,7 @@ impl WindowsWindow {
         let lpparam = Some(&context as *const _ as *const _);
         unsafe {
             CreateWindowExW(
-                WS_EX_APPWINDOW,
+                dwexstyle,
                 classname,
                 &windowname,
                 dwstyle,
@@ -1067,7 +785,7 @@ impl WindowsWindow {
     }
 
     fn maximize(&self) {
-        unsafe { ShowWindowAsync(self.inner.hwnd, SW_MAXIMIZE) };
+        unsafe { ShowWindow(self.inner.hwnd, SW_MAXIMIZE) };
     }
 }
 
@@ -1108,10 +826,6 @@ impl PlatformWindow for WindowsWindow {
         }
     }
 
-    fn is_maximized(&self) -> bool {
-        self.inner.is_maximized()
-    }
-
     // todo(windows)
     fn content_size(&self) -> Size<Pixels> {
         let size = self.inner.size.get();
@@ -1123,12 +837,12 @@ impl PlatformWindow for WindowsWindow {
 
     // todo(windows)
     fn scale_factor(&self) -> f32 {
-        self.inner.scale_factor
+        1.0
     }
 
+    // todo(windows)
     fn titlebar_height(&self) -> Pixels {
-        let titlebar_rect = self.inner.get_titlebar_rect().unwrap();
-        ((titlebar_rect.bottom - titlebar_rect.top) as f64).into()
+        20.0.into()
     }
 
     // todo(windows)
@@ -1238,9 +952,8 @@ impl PlatformWindow for WindowsWindow {
         Some(done_rx)
     }
 
-    fn activate(&self) {
-        unsafe { ShowWindowAsync(self.inner.hwnd, SW_NORMAL) };
-    }
+    // todo(windows)
+    fn activate(&self) {}
 
     // todo(windows)
     fn set_title(&mut self, title: &str) {
@@ -1250,18 +963,16 @@ impl PlatformWindow for WindowsWindow {
     }
 
     // todo(windows)
-    fn set_edited(&mut self, _edited: bool) {}
+    fn set_edited(&mut self, edited: bool) {}
 
     // todo(windows)
     fn show_character_palette(&self) {}
 
-    fn minimize(&self) {
-        unsafe { ShowWindowAsync(self.inner.hwnd, SW_MINIMIZE) };
-    }
+    // todo(windows)
+    fn minimize(&self) {}
 
-    fn zoom(&self) {
-        unsafe { ShowWindowAsync(self.inner.hwnd, SW_MAXIMIZE) };
-    }
+    // todo(windows)
+    fn zoom(&self) {}
 
     // todo(windows)
     fn toggle_fullscreen(&self) {}
@@ -1277,7 +988,7 @@ impl PlatformWindow for WindowsWindow {
     }
 
     // todo(windows)
-    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> DispatchEventResult>) {
+    fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
         self.inner.callbacks.borrow_mut().input = Some(callback);
     }
 
@@ -1317,7 +1028,7 @@ impl PlatformWindow for WindowsWindow {
     }
 
     // todo(windows)
-    fn is_topmost_for_position(&self, _position: Point<Pixels>) -> bool {
+    fn is_topmost_for_position(&self, position: Point<Pixels>) -> bool {
         true
     }
 
@@ -1335,7 +1046,6 @@ impl PlatformWindow for WindowsWindow {
 #[implement(IDropTarget)]
 struct WindowsDragDropHandler(pub Rc<WindowsWindowInner>);
 
-#[allow(non_snake_case)]
 impl IDropTarget_Impl for WindowsDragDropHandler {
     fn DragEnter(
         &self,
@@ -1449,7 +1159,6 @@ fn register_wnd_class() -> PCWSTR {
             lpfnWndProc: Some(wnd_proc),
             hCursor: unsafe { LoadCursorW(None, IDC_ARROW).ok().unwrap() },
             lpszClassName: PCWSTR(CLASS_NAME.as_ptr()),
-            style: CS_HREDRAW | CS_VREDRAW,
             ..Default::default()
         };
         unsafe { RegisterClassW(&wc) };
@@ -1507,6 +1216,28 @@ pub(crate) fn try_get_window_inner(hwnd: HWND) -> Option<Rc<WindowsWindowInner>>
     }
 }
 
+unsafe fn get_window_long(hwnd: HWND, nindex: WINDOW_LONG_PTR_INDEX) -> isize {
+    #[cfg(target_pointer_width = "64")]
+    unsafe {
+        GetWindowLongPtrW(hwnd, nindex)
+    }
+    #[cfg(target_pointer_width = "32")]
+    unsafe {
+        GetWindowLongW(hwnd, nindex) as isize
+    }
+}
+
+unsafe fn set_window_long(hwnd: HWND, nindex: WINDOW_LONG_PTR_INDEX, dwnewlong: isize) -> isize {
+    #[cfg(target_pointer_width = "64")]
+    unsafe {
+        SetWindowLongPtrW(hwnd, nindex, dwnewlong)
+    }
+    #[cfg(target_pointer_width = "32")]
+    unsafe {
+        SetWindowLongW(hwnd, nindex, dwnewlong as i32) as isize
+    }
+}
+
 fn basic_vkcode_to_string(code: u16, modifiers: Modifiers) -> Option<Keystroke> {
     match code {
         // VK_0 - VK_9

crates/gpui/src/window.rs 🔗

@@ -520,7 +520,7 @@ impl Window {
                 handle
                     .update(&mut cx, |_, cx| cx.dispatch_event(event))
                     .log_err()
-                    .unwrap_or(DispatchEventResult::default())
+                    .unwrap_or(false)
             })
         });
 
@@ -574,12 +574,6 @@ impl Window {
     }
 }
 
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
-pub(crate) struct DispatchEventResult {
-    pub propagate: bool,
-    pub default_prevented: bool,
-}
-
 /// Indicates which region of the window is visible. Content falling outside of this mask will not be
 /// rendered. Currently, only rectangular content masks are supported, but we give the mask its own type
 /// to leave room to support more complex shapes in the future.
@@ -693,17 +687,6 @@ impl<'a> WindowContext<'a> {
         style
     }
 
-    /// Get the platform window titlebar height
-    pub fn titlebar_height(&self) -> Pixels {
-        self.window.platform_window.titlebar_height()
-    }
-
-    /// Check if the platform window is maximized
-    /// On some platforms (namely Windows) this is different than the bounds being the size of the display
-    pub fn is_maximized(&self) -> bool {
-        self.window.platform_window.is_maximized()
-    }
-
     /// Dispatch the given action on the currently focused element.
     pub fn dispatch_action(&mut self, action: Box<dyn Action>) {
         let focus_handle = self.focused();
@@ -1104,11 +1087,10 @@ impl<'a> WindowContext<'a> {
     /// You can create a keystroke with Keystroke::parse("").
     pub fn dispatch_keystroke(&mut self, keystroke: Keystroke) -> bool {
         let keystroke = keystroke.with_simulated_ime();
-        let result = self.dispatch_event(PlatformInput::KeyDown(KeyDownEvent {
+        if self.dispatch_event(PlatformInput::KeyDown(KeyDownEvent {
             keystroke: keystroke.clone(),
             is_held: false,
-        }));
-        if !result.propagate {
+        })) {
             return true;
         }
 
@@ -1141,7 +1123,7 @@ impl<'a> WindowContext<'a> {
 
     /// Dispatch a mouse or keyboard event on the window.
     #[profiling::function]
-    pub fn dispatch_event(&mut self, event: PlatformInput) -> DispatchEventResult {
+    pub fn dispatch_event(&mut self, event: PlatformInput) -> bool {
         self.window.last_input_timestamp.set(Instant::now());
         // Handlers may set this to false by calling `stop_propagation`.
         self.app.propagate_event = true;
@@ -1229,10 +1211,7 @@ impl<'a> WindowContext<'a> {
             self.dispatch_key_event(any_key_event);
         }
 
-        DispatchEventResult {
-            propagate: self.app.propagate_event,
-            default_prevented: self.window.default_prevented,
-        }
+        !self.app.propagate_event
     }
 
     fn dispatch_mouse_event(&mut self, event: &dyn Any) {

crates/ui/src/components.rs 🔗

@@ -9,7 +9,6 @@ mod indicator;
 mod keybinding;
 mod label;
 mod list;
-mod platform_titlebar;
 mod popover;
 mod popover_menu;
 mod right_click_menu;
@@ -32,7 +31,6 @@ pub use indicator::*;
 pub use keybinding::*;
 pub use label::*;
 pub use list::*;
-pub use platform_titlebar::*;
 pub use popover::*;
 pub use popover_menu::*;
 pub use right_click_menu::*;

crates/ui/src/components/platform_titlebar.rs 🔗

@@ -1,226 +0,0 @@
-// allowing due to multiple platform conditional code
-#![allow(unused_imports)]
-
-use gpui::{
-    div,
-    prelude::FluentBuilder,
-    px, AnyElement, Div, Element, ElementId, Fill, InteractiveElement, Interactivity, IntoElement,
-    ParentElement, Pixels, RenderOnce, Rgba, Stateful, StatefulInteractiveElement, StyleRefinement,
-    Styled,
-    WindowAppearance::{Dark, Light, VibrantDark, VibrantLight},
-    WindowContext,
-};
-use smallvec::SmallVec;
-
-use crate::h_flex;
-
-pub enum PlatformStyle {
-    Linux,
-    Windows,
-    MacOs,
-}
-
-impl PlatformStyle {
-    pub fn platform() -> Self {
-        if cfg!(windows) {
-            Self::Windows
-        } else if cfg!(macos) {
-            Self::MacOs
-        } else {
-            Self::Linux
-        }
-    }
-
-    pub fn windows(&self) -> bool {
-        matches!(self, Self::Windows)
-    }
-
-    pub fn macos(&self) -> bool {
-        matches!(self, Self::MacOs)
-    }
-}
-
-#[derive(IntoElement)]
-pub struct PlatformTitlebar {
-    platform: PlatformStyle,
-    titlebar_bg: Option<Fill>,
-    content: Stateful<Div>,
-    children: SmallVec<[AnyElement; 2]>,
-}
-
-impl Styled for PlatformTitlebar {
-    fn style(&mut self) -> &mut StyleRefinement {
-        self.content.style()
-    }
-}
-
-impl PlatformTitlebar {
-    /// Change the platform style used
-    pub fn with_platform_style(self, style: PlatformStyle) -> Self {
-        Self {
-            platform: style,
-            ..self
-        }
-    }
-
-    fn titlebar_top_padding(&self, cx: &WindowContext) -> Pixels {
-        if self.platform.windows() && cx.is_maximized() {
-            // todo(windows): get padding from win32 api, need HWND from window context somehow
-            // should be GetSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi) * 2
-            px(8.0)
-        } else {
-            px(0.0)
-        }
-    }
-
-    fn windows_caption_button_width(_cx: &WindowContext) -> Pixels {
-        // todo(windows): get padding from win32 api, need HWND from window context somehow
-        // should be GetSystemMetricsForDpi(SM_CXSIZE, dpi)
-        px(36.0)
-    }
-
-    fn render_window_controls_right(&self, cx: &mut WindowContext) -> impl Element {
-        if self.platform.windows() {
-            let btn_height = cx.titlebar_height() - self.titlebar_top_padding(cx);
-            let close_btn_hover_color = Rgba {
-                r: 232.0 / 255.0,
-                g: 17.0 / 255.0,
-                b: 32.0 / 255.0,
-                a: 1.0,
-            };
-
-            let btn_hover_color = match cx.appearance() {
-                Light | VibrantLight => Rgba {
-                    r: 0.1,
-                    g: 0.1,
-                    b: 0.1,
-                    a: 0.2,
-                },
-                Dark | VibrantDark => Rgba {
-                    r: 0.9,
-                    g: 0.9,
-                    b: 0.9,
-                    a: 0.1,
-                },
-            };
-
-            fn windows_caption_btn(
-                id: &'static str,
-                icon_text: &'static str,
-                hover_color: Rgba,
-                cx: &WindowContext,
-            ) -> Stateful<Div> {
-                let mut active_color = hover_color;
-                active_color.a *= 0.2;
-                h_flex()
-                    .id(id)
-                    .h_full()
-                    .justify_center()
-                    .content_center()
-                    .items_center()
-                    .w(PlatformTitlebar::windows_caption_button_width(cx))
-                    .hover(|style| style.bg(hover_color))
-                    .active(|style| style.bg(active_color))
-                    .child(icon_text)
-            }
-
-            div()
-                .id("caption-buttons-windows")
-                .flex()
-                .flex_row()
-                .justify_center()
-                .content_stretch()
-                .max_h(btn_height)
-                .min_h(btn_height)
-                .font("Segoe Fluent Icons")
-                .text_size(gpui::Pixels(10.0))
-                .children(vec![
-                    windows_caption_btn("minimize", "\u{e921}", btn_hover_color, cx), // minimize icon
-                    windows_caption_btn(
-                        "maximize",
-                        if cx.is_maximized() {
-                            "\u{e923}" // restore icon
-                        } else {
-                            "\u{e922}" // maximize icon
-                        },
-                        btn_hover_color,
-                        cx,
-                    ),
-                    windows_caption_btn("close", "\u{e8bb}", close_btn_hover_color, cx), // close icon
-                ])
-        } else {
-            div().id("caption-buttons-windows")
-        }
-    }
-
-    /// Sets the background color of titlebar.
-    pub fn titlebar_bg<F>(mut self, fill: F) -> Self
-    where
-        F: Into<Fill>,
-        Self: Sized,
-    {
-        self.titlebar_bg = Some(fill.into());
-        self
-    }
-}
-
-pub fn platform_titlebar(id: impl Into<ElementId>) -> PlatformTitlebar {
-    let id = id.into();
-    PlatformTitlebar {
-        platform: PlatformStyle::platform(),
-        titlebar_bg: None,
-        content: div().id(id.clone()),
-        children: SmallVec::new(),
-    }
-}
-
-impl RenderOnce for PlatformTitlebar {
-    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
-        let titlebar_height = cx.titlebar_height();
-        let titlebar_top_padding = self.titlebar_top_padding(cx);
-        let window_controls_right = self.render_window_controls_right(cx);
-        let macos = self.platform.macos();
-        h_flex()
-            .id("titlebar")
-            .w_full()
-            .pt(titlebar_top_padding)
-            .max_h(titlebar_height)
-            .min_h(titlebar_height)
-            .map(|mut this| {
-                this.style().background = self.titlebar_bg;
-
-                if macos {
-                    if !cx.is_fullscreen() {
-                        // Use pixels here instead of a rem-based size because the macOS traffic
-                        // lights are a static size, and don't scale with the rest of the UI.
-                        return this.pl(px(80.));
-                    }
-                }
-
-                this
-            })
-            .content_stretch()
-            .child(
-                self.content
-                    .flex()
-                    .flex_row()
-                    .w_full()
-                    .id("titlebar-content")
-                    .children(self.children),
-            )
-            .child(window_controls_right)
-    }
-}
-
-impl InteractiveElement for PlatformTitlebar {
-    fn interactivity(&mut self) -> &mut Interactivity {
-        self.content.interactivity()
-    }
-}
-impl StatefulInteractiveElement for PlatformTitlebar {}
-
-impl ParentElement for PlatformTitlebar {
-    fn extend(&mut self, elements: impl Iterator<Item = AnyElement>) {
-        self.children.extend(elements)
-    }
-}

crates/workspace/src/workspace.rs 🔗

@@ -72,7 +72,7 @@ use task::SpawnInTerminal;
 use theme::{ActiveTheme, SystemAppearance, ThemeSettings};
 pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
 pub use ui;
-use ui::Label;
+use ui::{px, Label};
 use util::ResultExt;
 use uuid::Uuid;
 pub use workspace_settings::{AutosaveSetting, WorkspaceSettings};
@@ -4753,6 +4753,10 @@ fn parse_pixel_size_env_var(value: &str) -> Option<Size<GlobalPixels>> {
     Some(size((width as f64).into(), (height as f64).into()))
 }
 
+pub fn titlebar_height(cx: &mut WindowContext) -> Pixels {
+    (1.75 * cx.rem_size()).max(px(32.))
+}
+
 struct DisconnectedOverlay;
 
 impl Element for DisconnectedOverlay {
@@ -4766,7 +4770,7 @@ impl Element for DisconnectedOverlay {
             .bg(background)
             .absolute()
             .left_0()
-            .top(cx.titlebar_height())
+            .top(titlebar_height(cx))
             .size_full()
             .flex()
             .items_center()