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A new optional yasl_app_desc.window spec makes yasl_run() create that
toplevel and request its first frame before init(), which is now
optional too. If creation fails, yasl_run() closes the display and
returns an error without calling init().
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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hello only tracked a failure flag, so keep it as a file-scope static like
simple_window and leave yasl_app_desc.userdata unset.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Port backend, input, tablet and app tests from yasl_input_event and
YASL_INPUT_* to struct yasl_event and YASL_EVENT_*. The input allocation
test links input.c on its own, so it stubs yasl_loop_now_ns() for the new
event timestamps.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The core input queue and the yasl_run() runner each had their own event
type, and the runner translated one into the other. Both now share
struct yasl_event in <yasl/yasl.h>: yasl_surface_poll_event() returns the
same events the app event callback receives, so the runner forwards them
unchanged.
Pointer input becomes POINTER_DOWN/UP/MOTION/SCROLL/LEAVE with a named
yasl_pointer_button and a motion delta computed in the input queue. TEXT,
PASTE and DROP share one text payload, scale changes fold into
WINDOW_RESIZE, and every event carries a monotonic time_ns.
yasl_surface_set_mouse_mode() is replaced by
yasl_surface_set_pointer_mode(); no backend implements relative mode yet.
The export check now only counts YASL_API declarations, so function
pointer fields returning enum yasl_app_result are not mistaken for
exports.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The test pushes two key events into a Wayland surface's queue. The
first event's callback destroys the surface. The run must end cleanly,
without delivering the second event. Before 71091ca, ASan reported a
heap-use-after-free in app_runner_dispatch_input_events. The test
skips when WAYLAND_DISPLAY is unset.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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advertise YASL_CAP_CSD
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game examples
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yasl_surface_del_timer zeroed its entry and kept it. A one-shot surface
timer that fired stayed in the surface's id list until the surface was
destroyed. A client that re-arms a one-shot timer, such as a cursor
blink, grew the list without bound, and each delete scanned all of it.
Delete now removes the entry. Before the list grows, add drops the ids
that the loop has retired. The list holds only armed timers.
Delete now returns false for a timer that already retired, as
yasl_loop_del_timer does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Resolve gaps identified in yasl-gaps-report.md:
- X11:
- Add XDND v5 file drop support and text/uri-list parsing (YASL_INPUT_DROP_FILES)
- Dispatch surface drop-target events (YASL_DRAG_OVER, YASL_DRAG_LEAVE, YASL_DRAG_DROP, YASL_DROP_OVER, YASL_DROP_LEAVE)
- Implement override-redirect popups (surface_create_popup, surface_popup_reposition)
- Support drag images with override-redirect icon window
- Set YASL_CAP_POPUPS capability
- Handle XIHierarchyChanged reset cleanly
- Cocoa:
- Dispatch surface drop-target events for internal drags and external NSDraggingDestination
- Implement child window popups (cocoa_surface_create_popup, cocoa_surface_popup_reposition)
- Implement primary selection via dedicated pasteboard
- Support drag images with floating borderless NSWindow
- Track pointer buttons and push YASL_INPUT_RESET on focus loss
- Set YASL_CAP_POPUPS and YASL_CAP_PRIMARY_SELECTION capabilities
- Tests:
- Add comprehensive unit test suite in tests/x11/test_tablet.c
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- Add include/yasl/native/{wayland,cocoa,x11}.h with type-safe handle accessors.
- Unify drag-and-drop and window carry support across Wayland, X11, and Cocoa.
- Preserve full ABI compatibility for capability flags.
- Install native headers conditionally based on enabled backend.
- Include missing tablet example and backend test suites.
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Separate loop/timer and native interoperability APIs from the portable surface header. Unify dispatch, geometry queries, and timer callbacks; keep framebuffer bookkeeping and frame clocks private, and hide implementation symbols.
Update backends, documentation, examples, and API/integration coverage. Verify exports, strict C/C++ installed consumers, and normal plus ASan/UBSan suites.
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and Cocoa
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- Implement runtime backend selection (Wayland, X11, Cocoa)
- Add native X11 backend with clipboard, keyboard, mouse, and placement
- Integrate multi-backend integration tests running under Weston and Xwayland
- Retain zero-hole struct packing, branchless ALU/LUT primitives, and paced event loop
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- Fix Wayland event loop lockout by properly decoupling read arming and adding poll-backed dispatching
- Support standalone display lifecycle without requiring caller to manage a loop
- Eliminate alignment holes across yasl_surface, yasl_display, seat, touch_point, and conn_drag using pahole
- Replace branching state/button decoders with compile-time locked LUTs and branchless bitwise operations
- Accelerate UTF-8 validation with 64-bit word scanning for ASCII runs
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A minimal, modern desktop window surface library in C.
Supports Wayland on Linux and Cocoa/Metal on macOS with
presentation timing, fractional scaling, IME, and CSD.
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