103 lines
4.2 KiB
Rust
103 lines
4.2 KiB
Rust
//! macOS 原生标题栏适配。定位系统窗口按钮并沿用用户的标题栏双击设置。
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//! 仅在 macOS 编译；Objective-C 交互局限在原生窗口层，不参与 Endor 布局与事件分发。
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//!
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//! Keep AppKit's real window buttons aligned with the custom tab strip.
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use objc2_app_kit::{NSApplication, NSView, NSWindowButton, NSWindowStyleMask};
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use objc2_foundation::{MainThreadMarker, NSPoint, NSString, NSUserDefaults};
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use winit::{
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raw_window_handle::{HasWindowHandle, RawWindowHandle},
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window::Window,
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};
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/// The custom draggable row does not receive AppKit's titlebar double-click
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/// action automatically. Use the native click count and native window actions.
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/// 读取系统偏好的标题栏双击行为，委托原生窗口执行相应动作。
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pub fn titlebar_double_click(window: &Window) -> bool {
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let Some(main_thread) = MainThreadMarker::new() else {
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return false;
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};
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let Ok(handle) = window.window_handle() else {
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return false;
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};
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let RawWindowHandle::AppKit(handle) = handle.as_raw() else {
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return false;
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};
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// SAFETY: called on the event-loop thread during a left-button press, with
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// a live winit-owned NSView. No native object outlives the Window borrow.
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unsafe {
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let Some(event) = NSApplication::sharedApplication(main_thread).currentEvent() else {
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return false;
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};
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if event.clickCount() != 2 {
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return false;
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}
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let view = &*handle.ns_view.as_ptr().cast::<NSView>();
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let Some(native) = view.window() else {
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return false;
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};
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if native.styleMask().contains(NSWindowStyleMask::FullScreen) {
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return true;
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}
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let action = NSUserDefaults::standardUserDefaults()
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.stringForKey(&NSString::from_str("AppleActionOnDoubleClick"))
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.map(|value| value.to_string());
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match action.as_deref() {
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Some("Minimize") => native.performMiniaturize(None),
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None | Some("Maximize" | "Fill") => native.performZoom(None),
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// Respect disabled/unrecognized system actions without moving it.
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_ => {}
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}
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}
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true
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}
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/// Called only on winit's main thread, after native creation and before drawing.
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/// AppKit can restore its default button positions when laying out the title bar.
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/// 调整真实 macOS 窗口三键的位置，与全尺寸内容和侧栏控制区对齐。
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pub fn align_controls(window: &Window) {
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let Ok(handle) = window.window_handle() else {
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return;
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};
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let RawWindowHandle::AppKit(handle) = handle.as_raw() else {
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return;
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};
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// SAFETY: winit owns this NSView for the lifetime of the borrowed Window.
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// All AppKit access is on the event-loop thread; no native pointers escape.
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unsafe {
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let view = &*handle.ns_view.as_ptr().cast::<NSView>();
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let Some(native) = view.window() else {
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return;
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};
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// Fullscreen traffic lights belong to AppKit's separate floating toolbar.
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if native.styleMask().contains(NSWindowStyleMask::FullScreen) {
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return;
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}
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let bounds = view.bounds();
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let center = f64::from(crate::sidebar::HEADER) / 2.0;
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let content_y = if view.isFlipped() {
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bounds.origin.y + center
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} else {
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bounds.origin.y + bounds.size.height - center
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};
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for kind in [
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NSWindowButton::NSWindowCloseButton,
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NSWindowButton::NSWindowMiniaturizeButton,
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NSWindowButton::NSWindowZoomButton,
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] {
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let Some(button) = native.standardWindowButton(kind) else {
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continue;
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};
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let Some(parent) = button.superview() else {
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continue;
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};
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let target = parent.convertPoint_fromView(NSPoint::new(0.0, content_y), Some(view));
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let frame = button.frame();
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let y = target.y - frame.size.height / 2.0;
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// Preserve native button size, horizontal spacing and behavior.
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if (frame.origin.y - y).abs() > 0.01 {
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button.setFrameOrigin(NSPoint::new(frame.origin.x, y));
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}
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}
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}
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}
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