Merge pull request #1351 from mitchellh/macos-svc

macOS: implement read/write terminal text for services

include/ghostty.h

@@ -489,6 +489,8 @@ void ghostty_surface_split_equalize(ghostty_surface_t);
 bool ghostty_surface_binding_action(ghostty_surface_t, const char *, uintptr_t);
 void ghostty_surface_complete_clipboard_request(ghostty_surface_t, const char *, void *, bool);
 uintptr_t ghostty_surface_pwd(ghostty_surface_t, char *, uintptr_t);
+bool ghostty_surface_has_selection(ghostty_surface_t);
+uintptr_t ghostty_surface_selection(ghostty_surface_t, char *, uintptr_t);
 
 ghostty_inspector_t ghostty_surface_inspector(ghostty_surface_t);
 void ghostty_inspector_free(ghostty_surface_t);

macos/Sources/App/macOS/AppDelegate.swift

@@ -17,7 +17,8 @@ class AppDelegate: NSObject,
         category: String(describing: AppDelegate.self)
     )
     
-    /// Various menu items so that we can programmatically sync the keyboard shortcut with the Ghostty config.
+    /// Various menu items so that we can programmatically sync the keyboard shortcut with the Ghostty config
+    @IBOutlet private var menuServices: NSMenu?
     @IBOutlet private var menuCheckForUpdates: NSMenuItem?
     @IBOutlet private var menuOpenConfig: NSMenuItem?
     @IBOutlet private var menuReloadConfig: NSMenuItem?
@@ -108,9 +109,11 @@ class AppDelegate: NSObject,
         // Initial config loading
         configDidReload(ghostty)
         
-        // Register our service provider. This must happen after everything
+        // Register our service provider. This must happen after everything is initialized.
-        // else is initialized.
         NSApp.servicesProvider = ServiceProvider()
+        
+        // This registers the Ghostty => Services menu to exist.
+        NSApp.servicesMenu = menuServices
 
         // Configure user notifications
         let actions = [

macos/Sources/App/macOS/MainMenu.xib

@@ -40,6 +40,7 @@
                 <outlet property="menuSelectSplitBelow" destination="QDz-d9-CBr" id="FsH-Dq-jij"/>
                 <outlet property="menuSelectSplitLeft" destination="cTK-oy-KuV" id="Jpr-5q-dqz"/>
                 <outlet property="menuSelectSplitRight" destination="upj-mc-L7X" id="nLY-o1-lky"/>
+                <outlet property="menuServices" destination="aQe-vS-j8Q" id="uWQ-Wo-T1L"/>
                 <outlet property="menuSplitHorizontal" destination="VUR-Ld-nLx" id="RxO-Zw-ovb"/>
                 <outlet property="menuSplitVertical" destination="UDZ-4y-6xL" id="fgZ-Wb-8OR"/>
                 <outlet property="menuTerminalInspector" destination="QwP-M5-fvh" id="wJi-Dh-S9f"/>
@@ -76,6 +77,11 @@
                                 </connections>
                             </menuItem>
                             <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Services" id="rJe-5J-bwL">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" id="aQe-vS-j8Q"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="qno-yg-pur"/>
                             <menuItem title="Hide Ghostty" keyEquivalent="h" id="Olw-nP-bQN">
                                 <connections>
                                     <action selector="hide:" target="-1" id="PnN-Uc-m68"/>

macos/Sources/Ghostty/SurfaceView_AppKit.swift

@@ -953,3 +953,60 @@ extension Ghostty.SurfaceView: NSTextInputClient {
         print("SEL: \(selector)")
     }
 }
+
+// MARK: Services
+
+// https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/SysServices/Articles/using.html
+extension Ghostty.SurfaceView: NSServicesMenuRequestor {
+    override func validRequestor(
+        forSendType sendType: NSPasteboard.PasteboardType?,
+        returnType: NSPasteboard.PasteboardType?
+    ) -> Any? {
+        // Types that we accept sent to us
+        let accepted: [NSPasteboard.PasteboardType] = [.string, .init("public.utf8-plain-text")]
+        
+        // We can always receive the accepted types
+        if (returnType == nil || accepted.contains(returnType!)) {
+            return self
+        }
+        
+        // If we have a selection we can send the accepted types too
+        if ((self.surface != nil && ghostty_surface_has_selection(self.surface)) &&
+            (sendType == nil || accepted.contains(sendType!))
+        ) {
+            return self
+        }
+        
+        return super.validRequestor(forSendType: sendType, returnType: returnType)
+    }
+    
+    func writeSelection(
+        to pboard: NSPasteboard,
+        types: [NSPasteboard.PasteboardType]
+    ) -> Bool {
+        guard let surface = self.surface else { return false }
+        
+        // We currently cap the maximum copy size to 1MB. iTerm2 I believe
+        // caps theirs at 0.1MB (configurable) so this is probably reasonable.
+        let v = String(unsafeUninitializedCapacity: 1000000) {
+            Int(ghostty_surface_selection(surface, $0.baseAddress, UInt($0.count)))
+        }
+        
+        pboard.declareTypes([.string], owner: nil)
+        pboard.setString(v, forType: .string)
+        return true
+    }
+    
+    func readSelection(from pboard: NSPasteboard) -> Bool {
+        guard let str = pboard.string(forType: .string) else { return false }
+        
+        let len = str.utf8CString.count
+        if (len == 0) { return true }
+        str.withCString { ptr in
+            // len includes the null terminator so we do len - 1
+            ghostty_surface_text(surface, ptr, UInt(len - 1))
+        }
+        
+        return true
+    }
+}

src/Surface.zig

@@ -865,6 +865,21 @@ fn changeConfig(self: *Surface, config: *const configpkg.Config) !void {
     };
 }
 
+/// Returns true if the terminal has a selection.
+pub fn hasSelection(self: *const Surface) bool {
+    self.renderer_state.mutex.lock();
+    defer self.renderer_state.mutex.unlock();
+    return self.io.terminal.screen.selection != null;
+}
+
+/// Returns the selected text. This is allocated.
+pub fn selectionString(self: *Surface, alloc: Allocator) !?[]const u8 {
+    self.renderer_state.mutex.lock();
+    defer self.renderer_state.mutex.unlock();
+    const sel = self.io.terminal.screen.selection orelse return null;
+    return try self.io.terminal.screen.selectionString(alloc, sel, false);
+}
+
 /// Returns the pwd of the terminal, if any. This is always copied because
 /// the pwd can change at any point from termio. If we are calling from the IO
 /// thread you should just check the terminal directly.

src/apprt/embedded.zig

@@ -1438,6 +1438,30 @@ pub const CAPI = struct {
         return surface.core_surface.needsConfirmQuit();
     }
 
+    /// Returns true if the surface has a selection.
+    export fn ghostty_surface_has_selection(surface: *Surface) bool {
+        return surface.core_surface.hasSelection();
+    }
+
+    /// Copies the surface selection text into the provided buffer and
+    /// returns the copied size. If the buffer is too small, there is no
+    /// selection, or there is an error, then 0 is returned.
+    export fn ghostty_surface_selection(surface: *Surface, buf: [*]u8, cap: usize) usize {
+        const selection_ = surface.core_surface.selectionString(global.alloc) catch |err| {
+            log.warn("error getting selection err={}", .{err});
+            return 0;
+        };
+        const selection = selection_ orelse return 0;
+        defer global.alloc.free(selection);
+
+        // If the buffer is too small, return no selection.
+        if (selection.len > cap) return 0;
+
+        // Copy into the buffer and return the length
+        @memcpy(buf[0..selection.len], selection);
+        return selection.len;
+    }
+
     /// Copies the surface working directory into the provided buffer and
     /// returns the copied size. If the buffer is too small, there is no pwd,
     /// or there is an error, then 0 is returned.