Merge pull request #8 from yusufipk/macos-backend

Add a Mac as the third system, beside Wayland and X11

CONTRIBUTING.md

@@ -31,6 +31,7 @@ directories, resets the language, and puts them back afterwards.
 | A reply that fails | `http_error(429)`, `url_error()`, `raw_body("not json")` |
 | Reading what was sent | `sent_json(request)`, `multipart_fields(request)` |
 | A program on the PATH | `only_these_tools("pactl", "wl-copy")` |
+| Standing on another system | `mock.patch.object(sys, "platform", "darwin")` |
 | Audio | `silence()`, `tone()`, `speech()`, `stereo()`, `make_wav()` |
 | A settings object | `self.config(cleanup_enabled=False)` |
 
@@ -52,30 +53,35 @@ forgets fails rather than hangs.
 
 ## Another platform
 
-Most of what Dikte does is not desktop-specific, and the tests are split along
+Three systems are supported: Wayland, X11 and macOS. Each one is a named entry
-that line. 511 of them pass anywhere: transcription, cleanup, the config file,
+in a table, and one chooser picks between them, so a fourth adds an entry and a
-the history, the agent, the command line, the timeline of a meeting. The
+line rather than a branch inside every function. The three tables are
-remaining 59 cover what Dikte *is* on this desktop, and carry `@linux_only`
+`paste.Desktop` (clipboard and key press), `audio.Sound` (capture and the device
-from `tests.support`: PipeWire capture and the pactl device list, wl-clipboard
+lists) and the `_macos()`/`_gnome()` pair in `hotkey.py`. Keep `sys.platform`
-and ydotool, KDE's shortcut file and the `/dev/input` listener.
+inside the chooser and read it there every time: a constant settled at import is
+one no test can stand somewhere else.
 
-Mark a test `@linux_only` when it would fail on a machine that never had those
+The tests are split along the same line, and almost none of them are skipped.
-programs. Do not mark one because it happens to be convenient: a test that
+892 of the 935 run on any machine, including every line of the Wayland, X11 and
-quietly stops running on the platform you are porting to protects nothing.
+macOS backends: the programs are faked at `shutil.which`, the frameworks at the
-
+one function that loads them. A test class says which system it is standing on
-The other half of a port is where the branch goes. Keep `sys.platform` out of
+rather than avoiding the question:
-the middle of a function; make the public name a chooser and give each platform
-its own function underneath:
 
 ```python
-def copy(text):
+class MacOS(ClipboardContract, DikteTest):
-    return _copy_macos(text) if sys.platform == "darwin" else _copy_wayland(text)
+    platform = "darwin"
+    here = paste.MACOS
 ```
 
-Then each platform's test calls its own function directly and passes everywhere,
+so the Linux half is checked on a Mac and the macOS half on Linux, and a change
-and adding a third one leaves the first two's tests alone. An `if` buried inside
+to a chooser cannot quietly break the platform nobody is sitting at. What the
-`copy()` forces every existing test to patch `sys.platform` instead, and the
+systems owe in common is written once as a contract class and subclassed by each
-next port breaks all of them.
+of them.
+
+The 43 that do carry `@linux_only` are the ones that would need the real thing:
+the `/dev/input` listener, KDE's shortcut file, GNOME's gsettings. Mark a test
+that way only when faking it would leave nothing to test. A test that quietly
+stops running on the platform you are porting to protects nothing.
 
 ## What a pull request should carry
 

README.md

@@ -5,8 +5,9 @@ machine by default, a model cleans it up (dropping the *uh*s, the restarts, the
 missing punctuation), and the result lands in your clipboard and is pasted into
 whatever window you were typing in.
 
-Built for KDE Plasma 6 on Wayland. No dependencies beyond system packages:
+Built for KDE Plasma 6 on Wayland, and runs on GNOME X11 and macOS too. No
-just the Python standard library and PyQt6.
+dependencies beyond system packages: just the Python standard library, 3.11 or
+newer, and PyQt6.
 
 *[Türkçe README](README.tr.md)*
 
@@ -37,6 +38,12 @@ tools instead:
 sudo apt install pulseaudio-utils xclip xdotool ffmpeg
 ```
 
+macOS has no shortcut registry for `install.sh` to install into, so the listener
+that catches the keys is the mechanism there and there is nothing to run:
+`brew install ffmpeg`, `pip install PyQt6`, then `python dikte.py`. A meeting
+needs BlackHole or Loopback, because nothing else offers what the speakers are
+playing.
+
 `install.sh` adds the `dikte` command, a menu entry, an autostart entry and the
 two global shortcuts, whose keys are its two arguments. `./update.sh` pulls and
 puts all of that back, keeping the keys you chose; `./uninstall.sh` takes it away
@@ -48,9 +55,10 @@ speech to text on **OpenAI**, **Groq** or **OpenRouter** (`gpt-4o-transcribe`),
 cleanup on OpenRouter (`google/gemini-3.5-flash-lite`) or, when either is
 installed, on Claude Code or Codex. The keys fall back to `OPENAI_API_KEY`,
 `GROQ_API_KEY` and `OPENROUTER_API_KEY`, and are stored in
-`~/.config/dikte/config.json`, mode 600. Cleanup can be switched off, in which
+`~/.config/dikte/config.json`, mode 600, or in
-case the raw transcript is pasted, and a thinking model's effort can be set next
+`~/Library/Application Support/Dikte` on a Mac. Cleanup can be switched off, in
-to it.
+which case the raw transcript is pasted, and a thinking model's effort can be
+set next to it.
 
 ## Using it
 

README.tr.md

@@ -4,8 +4,9 @@
 çevrilir, bir model transkripti temizler (ıı'lar, tekrarlar, eksik noktalama),
 sonuç panoya kopyalanır ve o an yazdığın pencereye yapıştırılır.
 
-KDE Plasma 6 / Wayland için yazıldı. Sistem paketleri dışında bağımlılığı yok:
+KDE Plasma 6 / Wayland için yazıldı, GNOME X11 ve macOS'ta da çalışır. Sistem
-sadece Python standart kütüphanesi ve PyQt6.
+paketleri dışında bağımlılığı yok: sadece Python standart kütüphanesi (3.11 veya
+üstü) ve PyQt6.
 
 *[English README](README.md)*
 
@@ -36,6 +37,11 @@ araçlarıyla çalışır:
 sudo apt install pulseaudio-utils xclip xdotool ffmpeg
 ```
 
+macOS'ta `install.sh`'ın kuracağı bir kısayol kaydı yok, tuşları yakalayan
+dinleyici orada mekanizmanın kendisi, dolayısıyla kurulacak bir şey de yok:
+`brew install ffmpeg`, `pip install PyQt6`, sonra `python dikte.py`. Toplantı
+için BlackHole ya da Loopback gerekiyor, hoparlörden çıkanı kimse vermiyor.
+
 `install.sh` `dikte` komutunu, menü girdisini, oturum açılışında otomatik
 başlatmayı ve iki global kısayolu kurar; tuşları da iki argümanı. `./update.sh`
 son sürümü çeker ve bunları senin seçtiğin tuşlarla yerine koyar;
@@ -49,8 +55,9 @@ seçersen sesi yazıya çevirme **OpenAI**, **Groq** ya da **OpenRouter**'da
 (`google/gemini-3.5-flash-lite`) ya da kuruluysa Claude Code veya Codex'te
 çalışır. Anahtarları boş bırakırsan `OPENAI_API_KEY`, `GROQ_API_KEY` ve
 `OPENROUTER_API_KEY` kullanılır; anahtarlar `~/.config/dikte/config.json`
-içinde, izinler 600. Temizlemeyi tamamen kapatabilirsin, o zaman ham transkript
+içinde, izinler 600, Mac'te ise `~/Library/Application Support/Dikte` altında.
-yapıştırılır; modelin yanındaki kutudan düşünme seviyesini de seçebilirsin.
+Temizlemeyi tamamen kapatabilirsin, o zaman ham transkript yapıştırılır; modelin
+yanındaki kutudan düşünme seviyesini de seçebilirsin.
 
 ## Kullanım
 

audio.py

@@ -1,19 +1,27 @@
 """Raw PCM capture with a live level meter.
 
-Dictation records one source through pw-record. A meeting records two of them at
+Dictation records one source. A meeting records two of them at once, the
-once, the microphone and what comes out of the speakers, and for that it goes
+microphone and what comes out of the speakers, and for that it goes through
-through ffmpeg instead: one process reading both devices and merging them into
+ffmpeg: one process reading both devices and merging them into the two channels
-the two channels of a single stream, which is the only way the two stay aligned
+of a single stream, which is the only way the two stay aligned with each other
-with each other over an hour.
+over an hour.
+
+Which programs do the capturing is a property of the machine, not of the code
+above: PulseAudio or PipeWire on Linux, AVFoundation through ffmpeg on macOS.
+They are gathered into one group each near the bottom of this file, and a
+chooser picks between them.
 """
 
 import array
+import collections
 import json
 import math
 import os
+import re
 import shutil
 import signal
 import subprocess
+import sys
 import tempfile
 import threading
 import wave
@@ -57,9 +65,7 @@ class Recorder(QObject):
             return
         cmd = recording_command(target)
         if not cmd:
-            self.failed.emit(t(
+            self.failed.emit(t(sound().missing))
-                "No audio recorder found. Install pulseaudio-utils or pipewire-audio."
-            ))
             return
 
         try:
@@ -175,36 +181,13 @@ def write_wav(pcm, rate=RATE, channels=CHANNELS, width=SAMPLE_WIDTH):
 
 
 def recording_command(target=""):
-    """Return a raw-s16 capture command for the sound server on this desktop.
+    """A raw-s16 capture command for the sound system on this machine."""
+    return sound().record(target)
 
-    parec works with both PulseAudio and PipeWire's PulseAudio compatibility
+
-    service, and its source names are the same ones shown by list_sources().
+def meeting_command(mic_target, system_target):
-    Keep pw-record as the fallback for minimal native-PipeWire installations.
+    """One ffmpeg reading both devices and merging them into two channels."""
-    """
+    return sound().meeting(mic_target, system_target)
-    if shutil.which("parec"):
-        cmd = [
-            "parec", "--record", "--raw", f"--rate={RATE}",
-            f"--channels={CHANNELS}", "--format=s16le",
-            # Left alone, parec holds about two seconds before handing anything
-            # over, and then hands over all of it at once: the level meter sits
-            # still and jumps, and the tail of a recording can be lost on the
-            # way out. A chunk of the meter is the unit the rest of this file
-            # is measured in, so ask for that.
-            f"--latency-msec={CHUNK_LATENCY_MS}",
-        ]
-        if target:
-            cmd.append(f"--device={target}")
-        return cmd
-    if shutil.which("pw-record"):
-        cmd = [
-            "pw-record", "--raw", f"--rate={RATE}",
-            f"--channels={CHANNELS}", "--format=s16",
-        ]
-        if target:
-            cmd.append(f"--target={target}")
-        cmd.append("-")
-        return cmd
-    return []
 
 
 class MeetingRecorder(QObject):
@@ -251,18 +234,7 @@ class MeetingRecorder(QObject):
                                "Pick one in Settings → Meeting."))
             return
 
-        merge = (
+        cmd = meeting_command(mic_target, system_target)
-            "[0:a]aresample={rate}:async=1,aformat=sample_fmts=s16:channel_layouts=mono[m];"
-            "[1:a]aresample={rate}:async=1,aformat=sample_fmts=s16:channel_layouts=mono[s];"
-            "[m][s]amerge=inputs=2[out]"
-        ).format(rate=RATE)
-        cmd = [
-            "ffmpeg", "-hide_banner", "-nostdin", "-loglevel", "error",
-            "-f", "pulse", "-thread_queue_size", "4096", "-i", mic_target or "default",
-            "-f", "pulse", "-thread_queue_size", "4096", "-i", system_target,
-            "-filter_complex", merge, "-map", "[out]",
-            "-f", "s16le", "-ar", str(RATE), "-",
-        ]
 
         try:
             os.makedirs(os.path.dirname(path), exist_ok=True)
@@ -439,7 +411,61 @@ def _peak(samples):
     return min(1.0, max(abs(min(samples)), abs(max(samples))) / 32768.0)
 
 
-def _sources():
+# --- the sound system, one group per machine -------------------------------
+
+# Both meeting commands merge the same way: each input down to mono at our own
+# rate, then the two of them into the left and right of one stream.
+MERGE_FILTER = (
+    f"[0:a]aresample={RATE}:async=1,aformat=sample_fmts=s16:channel_layouts=mono[m];"
+    f"[1:a]aresample={RATE}:async=1,aformat=sample_fmts=s16:channel_layouts=mono[s];"
+    "[m][s]amerge=inputs=2[out]"
+)
+
+
+def _pulse_record(target):
+    """parec, or pw-record where PulseAudio's tools were left out.
+
+    parec works with both PulseAudio and PipeWire's PulseAudio compatibility
+    service, and its source names are the same ones shown by list_sources().
+    Keep pw-record as the fallback for minimal native-PipeWire installations.
+    """
+    if shutil.which("parec"):
+        cmd = [
+            "parec", "--record", "--raw", f"--rate={RATE}",
+            f"--channels={CHANNELS}", "--format=s16le",
+            # Left alone, parec holds about two seconds before handing anything
+            # over, and then hands over all of it at once: the level meter sits
+            # still and jumps, and the tail of a recording can be lost on the
+            # way out. A chunk of the meter is the unit the rest of this file
+            # is measured in, so ask for that.
+            f"--latency-msec={CHUNK_LATENCY_MS}",
+        ]
+        if target:
+            cmd.append(f"--device={target}")
+        return cmd
+    if shutil.which("pw-record"):
+        cmd = [
+            "pw-record", "--raw", f"--rate={RATE}",
+            f"--channels={CHANNELS}", "--format=s16",
+        ]
+        if target:
+            cmd.append(f"--target={target}")
+        cmd.append("-")
+        return cmd
+    return []
+
+
+def _pulse_meeting(mic_target, system_target):
+    return [
+        "ffmpeg", "-hide_banner", "-nostdin", "-loglevel", "error",
+        "-f", "pulse", "-thread_queue_size", "4096", "-i", mic_target or "default",
+        "-f", "pulse", "-thread_queue_size", "4096", "-i", system_target,
+        "-filter_complex", MERGE_FILTER, "-map", "[out]",
+        "-f", "s16le", "-ar", str(RATE), "-",
+    ]
+
+
+def _pactl_sources():
     if not shutil.which("pactl"):
         return []
     try:
@@ -452,30 +478,23 @@ def _sources():
         return []
 
 
-def list_sources():
+def _pulse_inputs():
-    """[(name, description)] for every real input source."""
     return [
         (src.get("name", ""), src.get("description") or src.get("name", ""))
-        for src in _sources()
+        for src in _pactl_sources()
         if not src.get("name", "").endswith(".monitor")
     ]
 
 
-def list_monitors():
+def _pulse_outputs():
-    """[(name, description)] for the monitor of every output.
-
-    Recording a monitor is recording whatever is being played, which in a
-    meeting is the other participants and nothing of your own microphone.
-    """
     return [
         (src.get("name", ""), src.get("description") or src.get("name", ""))
-        for src in _sources()
+        for src in _pactl_sources()
         if src.get("name", "").endswith(".monitor")
     ]
 
 
-def default_monitor():
+def _pulse_default_output():
-    """The monitor of the output sound is currently going to, or ''."""
     if not shutil.which("pactl"):
         return ""
     try:
@@ -488,5 +507,130 @@ def default_monitor():
     if not sink:
         return ""
     monitor = f"{sink}.monitor"
-    names = {name for name, _ in list_monitors()}
+    names = {name for name, _ in _pulse_outputs()}
     return monitor if not names or monitor in names else ""
+
+
+# macOS hands out no monitor of its own: what the speakers are playing is not
+# an input, and the only way to record it is a driver that pretends to be one.
+# These are the three people install.
+LOOPBACK_DEVICES = ("blackhole", "loopback", "soundflower")
+
+
+def _avfoundation_record(target):
+    if not shutil.which("ffmpeg"):
+        return []
+    return [
+        "ffmpeg", "-hide_banner", "-nostdin", "-loglevel", "error",
+        # AVFoundation names an input "video:audio", so the empty half in front
+        # of the colon is what says this recording has no picture in it.
+        "-f", "avfoundation", "-i", f":{target or 'default'}",
+        "-ac", str(CHANNELS), "-ar", str(RATE), "-f", "s16le", "-",
+    ]
+
+
+def _avfoundation_meeting(mic_target, system_target):
+    return [
+        "ffmpeg", "-hide_banner", "-nostdin", "-loglevel", "error",
+        "-thread_queue_size", "4096",
+        "-f", "avfoundation", "-i", f":{mic_target or 'default'}",
+        "-thread_queue_size", "4096",
+        "-f", "avfoundation", "-i", f":{system_target}",
+        "-filter_complex", MERGE_FILTER, "-map", "[out]",
+        "-f", "s16le", "-ar", str(RATE), "-",
+    ]
+
+
+def _avfoundation_inputs():
+    """[(index, name)] for every capture device AVFoundation offers.
+
+    The index is what the recorder is given, because that is what ffmpeg takes;
+    it changes when devices are plugged in, which is why the name is shown.
+    """
+    if not shutil.which("ffmpeg"):
+        return []
+    try:
+        # Listing devices is not a thing ffmpeg can do without an input, so it
+        # is asked for one it cannot open: the list comes out on stderr and the
+        # command then fails, which is the documented way of doing this.
+        result = subprocess.run(
+            ["ffmpeg", "-hide_banner", "-f", "avfoundation",
+             "-list_devices", "true", "-i", ""],
+            capture_output=True, text=True, timeout=8, check=False,
+        )
+    except (subprocess.SubprocessError, OSError):
+        return []
+
+    devices, listing = [], False
+    for line in result.stderr.splitlines():
+        if "AVFoundation audio devices:" in line:
+            listing = True
+            continue
+        if not listing:
+            continue
+        match = re.search(r"\[(\d+)\]\s+(.+)$", line)
+        if match:
+            devices.append((match.group(1), match.group(2).strip()))
+    return devices
+
+
+def _avfoundation_default_output():
+    for name, description in _avfoundation_inputs():
+        if any(word in description.lower() for word in LOOPBACK_DEVICES):
+            return name
+    return ""
+
+
+Sound = collections.namedtuple(
+    "Sound",
+    # How to capture one source and two at once, the two device lists, which
+    # device a meeting records the far side from, and what to say when the
+    # programs for any of it are not installed.
+    "record meeting inputs outputs default_output missing",
+)
+
+PULSE = Sound(
+    record=_pulse_record,
+    meeting=_pulse_meeting,
+    inputs=_pulse_inputs,
+    outputs=_pulse_outputs,
+    default_output=_pulse_default_output,
+    missing="No audio recorder found. Install pulseaudio-utils or pipewire-audio.",
+)
+
+COREAUDIO = Sound(
+    record=_avfoundation_record,
+    meeting=_avfoundation_meeting,
+    inputs=_avfoundation_inputs,
+    # Every macOS capture device is offered as the far side of a meeting, the
+    # loopback driver among them: there is no way to tell them apart, and an
+    # empty list would leave nothing to pick.
+    outputs=_avfoundation_inputs,
+    default_output=_avfoundation_default_output,
+    missing="ffmpeg not found. Install it with: brew install ffmpeg",
+)
+
+
+def sound():
+    """The programs this machine records through."""
+    return COREAUDIO if sys.platform == "darwin" else PULSE
+
+
+def list_sources():
+    """[(name, description)] for every real input source."""
+    return sound().inputs()
+
+
+def list_monitors():
+    """[(name, description)] for whatever can be recorded as the other side.
+
+    On Linux that is the monitor of an output, and recording it is recording
+    whatever is being played: in a meeting the other participants, and nothing
+    of your own microphone.
+    """
+    return sound().outputs()
+
+
+def default_monitor():
+    """The device the far side of a meeting comes from, or ''."""
+    return sound().default_output()

cli.py

@@ -717,7 +717,7 @@ def cmd_shortcut(opts):
     combo = (opts.combo or conf[spec.setting] or spec.fallback).strip()
     if not combo:
         return fail(opts, "no combination given and none stored; pass --combo", 2)
-    if hotkey.parse_shortcut(combo) == (None, None):
+    if not hotkey.valid_shortcut(combo):
         return fail(opts, f"cannot parse that combination: {combo}", 2)
     clashes = hotkey.conflicting_shortcuts(combo, spec.desktop_id)
     if clashes and not opts.force:

config.py

@@ -1,14 +1,16 @@
-"""Settings storage in ~/.config/dikte/config.json"""
+"""Settings storage, in the place this system keeps a program's settings."""
 
 import collections
 import hashlib
 import json
 import os
 import pathlib
+import sys
 
 import api
 import ggml
 import i18n
+import paste
 from i18n import t
 
 
@@ -16,9 +18,21 @@ def _xdg(var, default):
     return pathlib.Path(os.environ.get(var) or os.path.expanduser(default))
 
 
-CONFIG_DIR = _xdg("XDG_CONFIG_HOME", "~/.config") / "dikte"
+def _directories(platform=None):
+    """(settings, data), in the two places this system keeps them.
+
+    macOS keeps both in the one directory a Mac user's backup already knows
+    about. Everywhere else they are separate and follow the XDG variables.
+    """
+    if (platform or sys.platform) == "darwin":
+        support = pathlib.Path.home() / "Library/Application Support/Dikte"
+        return support, support
+    return (_xdg("XDG_CONFIG_HOME", "~/.config") / "dikte",
+            _xdg("XDG_DATA_HOME", "~/.local/share") / "dikte")
+
+
+CONFIG_DIR, DATA_DIR = _directories()
 CONFIG_FILE = CONFIG_DIR / "config.json"
-DATA_DIR = _xdg("XDG_DATA_HOME", "~/.local/share") / "dikte"
 HISTORY_FILE = DATA_DIR / "history.jsonl"
 RECORDINGS_DIR = DATA_DIR / "recordings"
 MEETINGS_DIR = DATA_DIR / "meetings"
@@ -415,7 +429,7 @@ DEFAULTS = {
     "local_llm_reasoning": "none",
     "cleanup_prompt": "",           # empty -> language-specific default
     "auto_paste": True,
-    "paste_shortcut": "ctrl+v",
+    "paste_shortcut": paste.desktop().shortcuts[0],   # cmd+v on a Mac
     "restore_clipboard": False,
     "mic_target": "",
     "max_seconds": 300,

dikte.py

@@ -20,6 +20,15 @@ import threading
 if os.environ.get("XDG_SESSION_TYPE") == "wayland" and os.environ.get("DISPLAY"):
     os.environ.setdefault("QT_QPA_PLATFORM", "xcb")
 
+# An application started from the Finder is given none of the shell's PATH, so
+# Homebrew's ffmpeg is invisible to it. Put the two places brew installs to in
+# front, before anything goes looking for a program.
+if sys.platform == "darwin":
+    os.environ["PATH"] = os.pathsep.join(
+        part for part in ("/opt/homebrew/bin", "/usr/local/bin",
+                          os.environ.get("PATH", "")) if part
+    )
+
 from PyQt6.QtCore import QTimer, QElapsedTimer, QSocketNotifier  # noqa: E402
 from PyQt6.QtGui import QAction, QIcon  # noqa: E402
 from PyQt6.QtNetwork import QLocalServer, QLocalSocket  # noqa: E402
@@ -96,7 +105,7 @@ class Dikte:
         self.ask_pipeline = Pipeline(self.conf)
         self.meeting_recorder = audio.MeetingRecorder()
         self.meetings = MeetingPipeline(self.conf)
-        self.evdev = hotkey.EvdevHotkey()
+        self.evdev = hotkey.listener()
         # Before anything of ours is started: a server from a Dikte that was
         # killed outright is still holding a model in memory.
         ggml.sweep()
@@ -325,8 +334,11 @@ class Dikte:
         # that same press. Its lateness is also the proof we were waiting for
         # that the shortcut is live, which leaves the listener with nothing to
         # do but double every press.
+        # Where nothing was installed there is no shortcut to catch up, and
+        # retiring the listener would leave the keys with nowhere to arrive.
         timer = self.last_evdev.get(name)
-        if self.evdev.running and timer is not None and timer.elapsed() < ECHO_MS:
+        if (hotkey.installs_shortcuts() and self.evdev.running
+                and timer is not None and timer.elapsed() < ECHO_MS):
             self._retire_listener()
             return
         handler()
@@ -346,8 +358,9 @@ class Dikte:
         self.conf.save()
         self.tray.showMessage(
             "Dikte",
-            t("The KDE shortcut is live now, so the built-in listener has been "
+            t("The {desktop} shortcut is live now, so the built-in listener has "
-              "turned off. It was doubling every key press."),
+              "been turned off. It was doubling every key press.",
+              desktop=hotkey.desktop_name()),
             QSystemTrayIcon.MessageIcon.Information, 8000,
         )
 
@@ -853,7 +866,10 @@ class Dikte:
         self._apply_local()
         self._build_tray()
         self._refresh_tray()
-        if self.conf["evdev_hotkey"]:
+        # Where the desktop has no shortcut registry of its own, the listener is
+        # not the fallback the setting offers to turn on: it is the only way the
+        # keys arrive at all, so it runs whatever the setting says.
+        if self.conf["evdev_hotkey"] or not hotkey.installs_shortcuts():
             self.evdev.start({name: self.conf[spec.setting]
                               for name, spec in hotkey.SHORTCUTS.items()})
         else:

ggml.py

@@ -37,6 +37,7 @@ import shutil
 import signal
 import socket
 import subprocess
+import sys
 import tarfile
 import threading
 import time
@@ -220,8 +221,15 @@ def _has_vulkan():
 
 
 def _wanted_assets(program):
-    """Asset name endings to accept, best first."""
+    """Asset name endings to accept, best first.
+
+    llama.cpp publishes native Metal-enabled macOS archives. whisper.cpp does
+    not publish a runnable macOS server archive, so an arm64 Mac must not
+    mistake Ubuntu's arm64 archive for a native build.
+    """
     arch = _arch()
+    if sys.platform == "darwin":
+        return () if program is WHISPER else (f"bin-macos-{arch}.tar.gz",)
     if program is LLAMA and _has_vulkan():
         return (f"bin-ubuntu-vulkan-{arch}.tar.gz", f"bin-ubuntu-{arch}.tar.gz")
     return (f"bin-ubuntu-{arch}.tar.gz",)
@@ -311,6 +319,11 @@ def install_program(program, tag="", on_progress=None, should_stop=None,
         if item:
             break
     if item is None:
+        if sys.platform == "darwin" and program is WHISPER:
+            raise LocalError(t(
+                "whisper.cpp publishes no macOS build. Install it with: "
+                "brew install whisper-cpp"
+            ))
         raise LocalError(t("{repo} {tag} has no build for this machine.",
                            repo=program.repo, tag=tag))
 

hotkey.py

@@ -1,7 +1,17 @@
-"""GNOME/KDE global-shortcut installation plus a built-in evdev listener."""
+"""Global shortcuts: the desktop's own registry, plus a listener of our own.
+
+Two things have to happen for a key combination to reach Dikte. Somewhere has
+to be told about it, and something has to be listening. On Linux that is the
+desktop's shortcut registry (KDE's file, GNOME's gsettings) and a reader of
+/dev/input for the wait until the registry is live. macOS has no registry to
+write into: the application asks Carbon for the combination while it runs, so
+there the listener is not a fallback but the whole mechanism.
+"""
 
 import ast
 import collections
+import ctypes
+import ctypes.util
 import glob
 import os
 import pathlib
@@ -10,6 +20,7 @@ import select
 import shutil
 import struct
 import subprocess
+import sys
 import threading
 
 from PyQt6.QtCore import QObject, pyqtSignal
@@ -197,8 +208,222 @@ class EvdevHotkey(QObject):
         return True
 
 
+# --- macOS: Carbon's hotkey service ---------------------------------------
+
+# Apple virtual key codes: where a key sits, not what is printed on it.
+MAC_KEYS = {
+    "space": 49, "tab": 48, "enter": 36, "return": 36, "esc": 53, "escape": 53,
+    "backspace": 51, "delete": 117, "home": 115, "end": 119,
+    "pgup": 116, "pgdown": 121, "up": 126, "down": 125, "left": 123, "right": 124,
+    "1": 18, "2": 19, "3": 20, "4": 21, "5": 23, "6": 22, "7": 26,
+    "8": 28, "9": 25, "0": 29,
+    "a": 0, "b": 11, "c": 8, "d": 2, "e": 14, "f": 3, "g": 5, "h": 4,
+    "i": 34, "j": 38, "k": 40, "l": 37, "m": 46, "n": 45, "o": 31,
+    "p": 35, "q": 12, "r": 15, "s": 1, "t": 17, "u": 32, "v": 9,
+    "w": 13, "x": 7, "y": 16, "z": 6,
+    "f1": 122, "f2": 120, "f3": 99, "f4": 118, "f5": 96, "f6": 97,
+    "f7": 98, "f8": 100, "f9": 101, "f10": 109, "f11": 103, "f12": 111,
+}
+# Carbon's own modifier bits, which are not the ones CoreGraphics uses in
+# paste.py: the same four modifiers, numbered differently by two APIs.
+MAC_MODS = {
+    "cmd": 1 << 8, "command": 1 << 8, "meta": 1 << 8, "super": 1 << 8,
+    "shift": 1 << 9,
+    "alt": 1 << 11, "option": 1 << 11,
+    "ctrl": 1 << 12, "control": 1 << 12,
+}
+HOTKEY_SIGNATURE = "Dikt"          # what our registrations are labelled with
+KEYBOARD_EVENT_CLASS = "keyb"
+HOTKEY_PRESSED = 5                 # kEventHotKeyPressed
+PARAMETER_ANY = "----"             # kEventParamDirectObject / typeWildCard
+HOTKEY_ID_PARAMETER = "hkid"
+
+# What the running listener holds. This is the whole of "installed" on macOS,
+# and it lasts as long as the process does: there is no file, and no other
+# program to read one. Written by CarbonHotkey.start(), read by the status
+# line, so what Settings shows is what the Mac actually gave us.
+_REGISTERED = {}
+
+
+def parse_macos_shortcut(text):
+    """'Cmd+Space' -> (256, 49), or (None, None) when unusable."""
+    parts = [part.strip().lower() for part in str(text).split("+") if part.strip()]
+    modifiers, key = 0, None
+    for part in parts:
+        if part in MAC_MODS:
+            modifiers |= MAC_MODS[part]
+        elif key is None and part in MAC_KEYS:
+            key = MAC_KEYS[part]
+        else:
+            return None, None
+    if key is None:
+        return None, None
+    return modifiers, key
+
+
+def _fourcc(text):
+    """A Carbon four-character code, which is those four bytes as a number."""
+    return int.from_bytes(text.encode("ascii"), "big")
+
+
+class _EventTypeSpec(ctypes.Structure):
+    _fields_ = [("eventClass", ctypes.c_uint32), ("eventKind", ctypes.c_uint32)]
+
+
+class _EventHotKeyID(ctypes.Structure):
+    _fields_ = [("signature", ctypes.c_uint32), ("id", ctypes.c_uint32)]
+
+
+class CarbonHotkey(QObject):
+    """Catches global shortcuts through macOS's own hotkey service.
+
+    RegisterEventHotKey asks for one combination rather than reading the
+    keyboard, so it needs no permission at all. Accessibility is a separate
+    matter, and only for the Cmd+V that puts the text back (see paste.py).
+
+    Unlike the evdev listener this one does swallow the key: while Dikte holds
+    a combination, nothing else on the Mac receives it.
+    """
+
+    triggered = pyqtSignal(str)   # the name the binding was registered under
+    failed = pyqtSignal(str)
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self._carbon = None
+        self._callback = None
+        self._handler = ctypes.c_void_p()
+        self._registrations = []
+        self._names = {}
+
+    @property
+    def running(self):
+        return bool(self._registrations)
+
+    def start(self, bindings):
+        """`bindings` is {name: 'Cmd+Space'}; an empty combination is skipped."""
+        self.stop()
+        try:
+            self._carbon = _carbon()
+        except OSError as exc:
+            self.failed.emit(t("Could not reach the macOS shortcut service: "
+                               "{error}", error=exc))
+            return False
+        if not self._install_handler():
+            return False
+
+        for identifier, (name, shortcut) in enumerate(bindings.items(), 1):
+            if not shortcut:
+                continue
+            modifiers, key = parse_macos_shortcut(shortcut)
+            if key is None:
+                self.failed.emit(
+                    t("Could not parse the shortcut: {shortcut}", shortcut=shortcut)
+                )
+                continue
+            reference = ctypes.c_void_p()
+            code = self._carbon.RegisterEventHotKey(
+                key, modifiers,
+                _EventHotKeyID(_fourcc(HOTKEY_SIGNATURE), identifier),
+                self._carbon.GetApplicationEventTarget(), 0, ctypes.byref(reference),
+            )
+            if code != 0:
+                # This is the conflict warning on macOS: there is no list to
+                # read beforehand, the answer comes from asking for the key.
+                self.failed.emit(t(
+                    "macOS would not give Dikte {shortcut}; another application "
+                    "already holds it.", shortcut=shortcut))
+                continue
+            self._registrations.append(reference)
+            self._names[identifier] = name
+            spec = SHORTCUTS.get(name)
+            if spec:
+                _REGISTERED[spec.desktop_id] = shortcut
+        return bool(self._registrations)
+
+    def stop(self):
+        if self._carbon:
+            for reference in self._registrations:
+                self._carbon.UnregisterEventHotKey(reference)
+            if self._handler:
+                self._carbon.RemoveEventHandler(self._handler)
+        self._registrations = []
+        self._names = {}
+        self._handler = ctypes.c_void_p()
+        self._callback = None
+        _REGISTERED.clear()
+
+    def _install_handler(self):
+        carbon = self._carbon
+        callback_type = ctypes.CFUNCTYPE(
+            ctypes.c_int32, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p
+        )
+
+        def pressed(_next_handler, event, _user_data):
+            wanted = _EventHotKeyID()
+            size = ctypes.c_uint32()
+            code = carbon.GetEventParameter(
+                event, _fourcc(PARAMETER_ANY), _fourcc(HOTKEY_ID_PARAMETER), None,
+                ctypes.sizeof(wanted), ctypes.byref(size), ctypes.byref(wanted),
+            )
+            if code == 0:
+                name = self._names.get(wanted.id)
+                if name:
+                    self.triggered.emit(name)
+            return 0
+
+        # Kept on self: Carbon holds the address of this function, and nothing
+        # on the Python side would otherwise stop it being collected.
+        self._callback = callback_type(pressed)
+        event_type = _EventTypeSpec(_fourcc(KEYBOARD_EVENT_CLASS), HOTKEY_PRESSED)
+        code = carbon.InstallEventHandler(
+            carbon.GetApplicationEventTarget(), self._callback, 1,
+            ctypes.byref(event_type), None, ctypes.byref(self._handler),
+        )
+        if code != 0:
+            self.failed.emit(t("Could not reach the macOS shortcut service: "
+                               "{error}", error=code))
+            self._callback = None
+            return False
+        return True
+
+
+def _carbon():
+    """Carbon, with its calls typed the way they are used above."""
+    path = (ctypes.util.find_library("Carbon")
+            or "/System/Library/Frameworks/Carbon.framework/Carbon")
+    carbon = ctypes.CDLL(path)
+    carbon.GetApplicationEventTarget.restype = ctypes.c_void_p
+    carbon.InstallEventHandler.restype = ctypes.c_int32
+    carbon.InstallEventHandler.argtypes = [
+        ctypes.c_void_p, ctypes.c_void_p, ctypes.c_uint32,
+        ctypes.POINTER(_EventTypeSpec), ctypes.c_void_p,
+        ctypes.POINTER(ctypes.c_void_p),
+    ]
+    carbon.RegisterEventHotKey.restype = ctypes.c_int32
+    carbon.RegisterEventHotKey.argtypes = [
+        ctypes.c_uint32, ctypes.c_uint32, _EventHotKeyID, ctypes.c_void_p,
+        ctypes.c_uint32, ctypes.POINTER(ctypes.c_void_p),
+    ]
+    carbon.UnregisterEventHotKey.restype = ctypes.c_int32
+    carbon.UnregisterEventHotKey.argtypes = [ctypes.c_void_p]
+    carbon.RemoveEventHandler.restype = ctypes.c_int32
+    carbon.RemoveEventHandler.argtypes = [ctypes.c_void_p]
+    carbon.GetEventParameter.restype = ctypes.c_int32
+    carbon.GetEventParameter.argtypes = [
+        ctypes.c_void_p, ctypes.c_uint32, ctypes.c_uint32,
+        ctypes.POINTER(ctypes.c_uint32), ctypes.c_uint32,
+        ctypes.POINTER(ctypes.c_uint32), ctypes.c_void_p,
+    ]
+    return carbon
+
+
 # --- the desktop's own shortcut -------------------------------------------
 
+def _macos():
+    return sys.platform == "darwin"
+
+
 def _gnome():
     desktop = os.environ.get("XDG_CURRENT_DESKTOP", "").lower()
     return "gnome" in desktop and shutil.which("gsettings") is not None
@@ -321,26 +546,69 @@ def gnome_shortcut_status(desktop_id=DESKTOP_ID):
         return None
 
 
+def listener(parent=None):
+    """The thing that hears the key, for whichever system this is."""
+    return CarbonHotkey(parent) if _macos() else EvdevHotkey(parent)
+
+
+def valid_shortcut(text):
+    """Whether this machine can bind the combination as it was typed."""
+    parse = parse_macos_shortcut if _macos() else parse_shortcut
+    return parse(text)[1] is not None
+
+
+def installs_shortcuts():
+    """Whether this system keeps a shortcut registry to write into.
+
+    KDE and GNOME do, and something outside Dikte reads it, so the combination
+    survives Dikte being closed. macOS does not: there is nothing to install,
+    nothing to remove, and Settings should not offer either.
+    """
+    return not _macos()
+
+
+def shortcut_needs_restart():
+    """Whether an installed shortcut waits for the next login before it works.
+
+    KWin reads kglobalshortcutsrc once, when it starts. GNOME picks a binding
+    up as it is written, and macOS never had one to write.
+    """
+    return not _macos() and not _gnome()
+
+
 def install_shortcut(shortcut, exec_command, name="Dikte: start/stop recording",
                      desktop_id=DESKTOP_ID):
+    if _macos():
+        _REGISTERED[desktop_id] = shortcut
+        return True, t(
+            "Shortcut saved: {shortcut}\nDikte holds this one itself while it "
+            "is running, so it works as soon as the settings are saved.",
+            shortcut=shortcut,
+        )
     if _gnome():
         return install_gnome_shortcut(shortcut, exec_command, name, desktop_id)
     return install_kde_shortcut(shortcut, exec_command, name, desktop_id)
 
 
 def remove_shortcut(desktop_id=DESKTOP_ID):
-    if _gnome():
+    if _macos():
+        _REGISTERED.pop(desktop_id, None)
+    elif _gnome():
         remove_gnome_shortcut(desktop_id)
     else:
         remove_kde_shortcut(desktop_id)
 
 
 def shortcut_status(desktop_id=DESKTOP_ID):
+    if _macos():
+        return _REGISTERED.get(desktop_id)
     return (gnome_shortcut_status(desktop_id) if _gnome()
             else kde_shortcut_status(desktop_id))
 
 
 def desktop_name():
+    if _macos():
+        return "macOS"
     return "GNOME" if _gnome() else "KDE"
 
 
@@ -425,6 +693,10 @@ def kde_shortcut_status(desktop_id=DESKTOP_ID):
 
 def conflicting_shortcuts(shortcut, desktop_id=DESKTOP_ID):
     """Names of other KDE entries bound to the same combination."""
+    if _macos():
+        # There is no list to read: macOS answers the question by refusing the
+        # registration, which CarbonHotkey reports when it asks for the key.
+        return []
     try:
         text = SHORTCUTS_FILE.read_text(encoding="utf-8")
     except OSError:

i18n.py

@@ -80,9 +80,9 @@ TR = {
         "{service} hesapta kredi kalmadığını söylüyor (HTTP 402).",
     "{service} is rate limiting you (HTTP 429). Try again in a moment.":
         "{service} hız sınırı uyguluyor (HTTP 429). Birazdan tekrar dene.",
-    "The KDE shortcut is live now, so the built-in listener has been "
+    "The {desktop} shortcut is live now, so the built-in listener has "
-    "turned off. It was doubling every key press.":
+    "been turned off. It was doubling every key press.":
-        "KDE kısayolu artık çalışıyor, bu yüzden dahili dinleyici kapatıldı. "
+        "{desktop} kısayolu artık çalışıyor, bu yüzden dahili dinleyici kapatıldı. "
         "Her tuşa basışı ikiye katlıyordu.",
     "No speech detected": "Ses algılanmadı",
     "No speech detected ({level} dB)": "Ses algılanmadı ({level} dB)",
@@ -104,11 +104,14 @@ TR = {
     "Could not start recording: {error}": "Kayıt başlatılamadı: {error}",
     "No audio recorder found. Install pulseaudio-utils or pipewire-audio.":
         "Ses kayıt aracı bulunamadı. pulseaudio-utils ya da pipewire-audio kur.",
+    "ffmpeg not found. Install it with: brew install ffmpeg":
+        "ffmpeg bulunamadı. Şununla kur: brew install ffmpeg",
     "Audio recorder stopped before receiving sound: {error}":
         "Ses kayıt aracı veri alamadan kapandı: {error}",
     "Could not copy to clipboard: {error}": "Panoya kopyalanamadı: {error}",
     "{tool} not found. Install {packages}.":
         "{tool} bulunamadı. {packages} paketlerini kur.",
+    "{tool} not found.": "{tool} bulunamadı.",
     "{tool} exited with code {code}.": "{tool} {code} koduyla çıktı.",
     "{tool} not found, cannot paste automatically.":
         "{tool} bulunamadı, otomatik yapıştırma yapılamıyor.",
@@ -117,6 +120,10 @@ TR = {
     "{tool} failed: {error}": "{tool} hatası: {error}",
     "Is ydotoold running? (systemctl --user status ydotool)":
         "ydotoold çalışıyor mu? (systemctl --user status ydotool)",
+    "macOS has not been told to let Dikte press keys. Turn Dikte on under "
+    "System Settings → Privacy & Security → Accessibility.":
+        "macOS, Dikte'nin tuşlara basmasına henüz izin vermiyor. Sistem Ayarları "
+        "→ Gizlilik ve Güvenlik → Erişilebilirlik altında Dikte'yi aç.",
 
     # --- api errors ----------------------------------------------------
     "{service} API key is empty. Add it in Settings.":
@@ -155,6 +162,8 @@ TR = {
     "Paste key": "Yapıştırma tuşu",
     "Terminals usually want ctrl+shift+v. Change this if pasting does nothing.":
         "Terminaller genelde ctrl+shift+v ister. Yapıştırma çalışmıyorsa bunu değiştir.",
+    "macOS asks for Accessibility permission the first time this is sent.":
+        "macOS bu ilk gönderildiğinde Erişilebilirlik izni ister.",
     "Restore the previous clipboard after pasting":
         "Yapıştırdıktan sonra eski pano içeriğini geri koy",
     "Indicator corner": "Gösterge köşesi",
@@ -167,8 +176,7 @@ TR = {
     "Skip silent recordings (don't call the API)":
         "Sessiz kayıtları atla (API'ye gönderme)",
     "Silence threshold": "Sessizlik eşiği",
-    "Keep audio files (~/.local/share/dikte/recordings)":
+    "Keep audio files ({path})": "Ses kayıtlarını sakla ({path})",
-        "Ses kayıtlarını sakla (~/.local/share/dikte/recordings)",
 
     # --- settings: api --------------------------------------------------
     "Keys": "Anahtarlar",
@@ -284,7 +292,7 @@ TR = {
     "Saved: {path}": "Kaydedildi: {path}",
 
     # --- settings: shortcut ------------------------------------------------
-    "Install as a KDE shortcut": "KDE kısayolu olarak kur",
+    "Install as a {desktop} shortcut": "{desktop} kısayolu olarak kur",
     "Install as a global shortcut": "Global kısayol olarak kur",
     "Remove": "Kaldır",
     "Registered in KDE: {shortcut}": "KDE'de kayıtlı: {shortcut}",
@@ -305,8 +313,10 @@ TR = {
     "Shortcut saved: {shortcut}": "Kısayol kaydedildi: {shortcut}",
     "Could not register the GNOME shortcut: {error}":
         "GNOME kısayolu kaydedilemedi: {error}",
-    "Use the built-in listener (/dev/input), for when the KDE shortcut is not active yet":
+    "Use the built-in listener (/dev/input), for when the {desktop} shortcut "
-        "Yerleşik dinleyici kullan (/dev/input), KDE kısayolu henüz etkin değilken",
+    "is not active yet":
+        "Yerleşik dinleyici kullan (/dev/input), {desktop} kısayolu henüz etkin "
+        "değilken",
     "Works immediately, no session restart. The only difference: the key "
     "combination also reaches the focused application.":
         "Anında çalışır, oturum yenilemek gerekmez. Tek farkı: tuş kombinasyonu "
@@ -317,6 +327,13 @@ TR = {
         "KWin, kısayol ayarlarını yalnızca açılışta okur. 'Kur' dedikten sonra kısayol "
         "Sistem Ayarları → Kısayollar altında görünür ama oturumu yeniden açana kadar "
         "tetiklenmez. O zamana kadar yerleşik dinleyiciyi kullanabilirsin.",
+    "The shortcut starts working as soon as it is installed.":
+        "Kısayol kurulur kurulmaz çalışmaya başlar.",
+    "Dikte asks macOS for these combinations itself, while it is running. "
+    "Nothing is installed, and no other application receives them in the "
+    "meantime.":
+        "Dikte bu kombinasyonları çalışırken macOS'tan kendisi ister. Hiçbir şey "
+        "kurulmaz ve o sırada başka hiçbir uygulama bu tuşları almaz.",
     "Shortcut conflict": "Kısayol çakışması",
     "{shortcut} is also used by:\n\n{list}\n\nInstall anyway?":
         "{shortcut} şu girdilerde de kullanılıyor:\n\n{list}\n\nYine de kurulsun mu?",
@@ -329,6 +346,15 @@ TR = {
     "Could not write the desktop file: {error}": "Desktop dosyası yazılamadı: {error}",
     "Could not write kglobalshortcutsrc: {error}": "kglobalshortcutsrc yazılamadı: {error}",
     "Could not parse the shortcut: {shortcut}": "Kısayol çözümlenemedi: {shortcut}",
+    "Shortcut saved: {shortcut}\nDikte holds this one itself while it is "
+    "running, so it works as soon as the settings are saved.":
+        "Kısayol kaydedildi: {shortcut}\nDikte bunu çalıştığı sürece kendisi "
+        "tutar, yani ayarlar kaydedilir kaydedilmez çalışır.",
+    "Could not reach the macOS shortcut service: {error}":
+        "macOS kısayol servisine ulaşılamadı: {error}",
+    "macOS would not give Dikte {shortcut}; another application already holds it.":
+        "macOS {shortcut} kombinasyonunu Dikte'ye vermedi; başka bir uygulama "
+        "onu şimdiden tutuyor.",
     "Cannot read /dev/input. Your user needs to be in the 'input' group:\n"
     "  sudo usermod -aG input $USER   (then log out and back in)":
         "/dev/input okunamıyor. Kullanıcının 'input' grubunda olması gerekir:\n"
@@ -556,6 +582,12 @@ TR = {
     "Same as dictation": "Diktedekiyle aynı",
     "Current output": "Geçerli çıkış",
     "The other participants": "Karşı tarafın sesi",
+    "macOS does not offer what the speakers are playing as something to "
+    "record. Install BlackHole or Loopback, send the meeting's sound through "
+    "it, and pick it above.":
+        "macOS, hoparlörden çıkan sesi kaydedilebilir bir kaynak olarak sunmaz. "
+        "BlackHole ya da Loopback kur, toplantının sesini oradan geçir ve "
+        "yukarıdan onu seç.",
     "Wear headphones if you can. Through speakers your microphone hears the "
     "other side as well, and although a line that lands on both channels at "
     "once is dropped again, the repair is never as clean as not needing it.":

overlay.py

@@ -1,6 +1,7 @@
 """The small recording indicator that appears in a screen corner without taking focus."""
 
 import math
+import sys
 
 from PyQt6.QtCore import Qt, QTimer, QRectF, QPointF
 from PyQt6.QtGui import QColor, QCursor, QFont, QPainter, QPainterPath, QPen, QFontMetrics
@@ -54,13 +55,17 @@ class Overlay(QWidget):
         self._phase = 0.0
         self._concealed = True
 
-        self.setWindowFlags(
+        flags = (
             Qt.WindowType.FramelessWindowHint
             | Qt.WindowType.WindowStaysOnTopHint
             | Qt.WindowType.Tool
             | Qt.WindowType.WindowDoesNotAcceptFocus
-            | Qt.WindowType.X11BypassWindowManagerHint
         )
+        if sys.platform != "darwin":
+            # It is the window manager that would otherwise move this out of
+            # the corner. macOS has no such hint, and Qt warns about it.
+            flags |= Qt.WindowType.X11BypassWindowManagerHint
+        self.setWindowFlags(flags)
         self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
         self.setAttribute(Qt.WidgetAttribute.WA_ShowWithoutActivating)
         # One that can be clicked away has to receive the click, which means it

paste.py

@@ -1,16 +1,22 @@
-"""Clipboard and key injection, through whichever pair of programs is here.
+"""Clipboard and key injection, through whatever this machine gives us.
 
 A Wayland session has wl-clipboard and ydotool, an X11 one has xclip and
-xdotool, and a session is one or the other. Which it is gets decided in one
+xdotool, and macOS has pbcopy with the key press going straight to
-place, and each desktop is a small group of functions below it: another desktop,
+CoreGraphics. Which of them is here gets decided in one place, and each is a
-or another operating system, adds a group and a line to the chooser rather than
+small group of functions below it: another desktop, or another operating
-a branch inside every function here.
+system, adds a group and a line to the chooser rather than a branch inside
+every function here.
 """
 
 import collections
+import ctypes
+import functools
+import json
 import os
 import shutil
 import subprocess
+import sys
+import tempfile
 import time
 
 from i18n import t
@@ -27,11 +33,88 @@ KEYCODES = {
 KEYSYMS = {"control": "ctrl", "meta": "super", "insert": "Insert",
            "enter": "Return", "return": "Return"}
 
+# Apple virtual key codes, which say where a key sits rather than what is
+# printed on it: the same numbers on a Turkish and a US keyboard.
+MAC_KEYCODES = {
+    "a": 0, "s": 1, "d": 2, "f": 3, "h": 4, "g": 5, "z": 6, "x": 7,
+    "c": 8, "v": 9, "b": 11, "q": 12, "w": 13, "e": 14, "r": 15,
+    "y": 16, "t": 17, "1": 18, "2": 19, "3": 20, "4": 21, "6": 22,
+    "5": 23, "=": 24, "9": 25, "7": 26, "-": 27, "8": 28, "0": 29,
+    "]": 30, "o": 31, "u": 32, "[": 33, "i": 34, "p": 35, "l": 37,
+    "j": 38, "'": 39, "k": 40, ";": 41, "\\": 42, ",": 43, "/": 44,
+    "n": 45, "m": 46, ".": 47, "`": 50, "enter": 36, "return": 36,
+}
+MAC_FLAGS = {"shift": 1 << 17, "ctrl": 1 << 18, "alt": 1 << 19, "command": 1 << 20}
+# What the same modifier is called on a Mac keyboard.
+MAC_ALIASES = {"cmd": "command", "meta": "command", "super": "command",
+               "control": "ctrl", "option": "alt"}
+HID_EVENT_TAP = 0   # kCGHIDEventTap: the event goes in where the keyboard does
+
+
+# pbpaste only reads text, EPS and RTF.  In particular, an image on a Mac's
+# clipboard comes back as an empty byte string and pbcopy then replaces it with
+# empty plain text.  Keep every NSPasteboard representation in short-lived
+# files instead.  The manifest stays small even when the clipboard holds a
+# large TIFF, and no additional Python package is needed.
+_MAC_SNAPSHOT = collections.namedtuple("MacClipboardSnapshot", "directory manifest")
+
+_MAC_SNAPSHOT_SCRIPT = r'''
+ObjC.import("AppKit");
+const root = ObjC.unwrap(
+  $.NSProcessInfo.processInfo.environment.objectForKey("DIKTE_PASTEBOARD_DIR")
+);
+const pasteboard = $.NSPasteboard.generalPasteboard;
+const items = pasteboard.pasteboardItems;
+const result = [];
+for (let i = 0; i < items.count; i++) {
+  const item = items.objectAtIndex(i);
+  const representations = [];
+  const types = item.types;
+  for (let j = 0; j < types.count; j++) {
+    const type = ObjC.unwrap(types.objectAtIndex(j));
+    const data = item.dataForType(type);
+    if (!data) continue;
+    const file = `${i}-${j}.bin`;
+    if (data.writeToFileAtomically(`${root}/${file}`, true)) {
+      representations.push({type, file});
+    }
+  }
+  result.push(representations);
+}
+JSON.stringify(result);
+'''
+
+_MAC_RESTORE_SCRIPT = r'''
+ObjC.import("AppKit");
+const root = ObjC.unwrap(
+  $.NSProcessInfo.processInfo.environment.objectForKey("DIKTE_PASTEBOARD_DIR")
+);
+const input = $.NSFileHandle.fileHandleWithStandardInput.readDataToEndOfFile;
+const source = $.NSString.alloc.initWithDataEncoding(input, $.NSUTF8StringEncoding);
+const rows = JSON.parse(ObjC.unwrap(source));
+const items = [];
+for (const representations of rows) {
+  const item = $.NSPasteboardItem.alloc.init;
+  for (const representation of representations) {
+    const data = $.NSData.dataWithContentsOfFile(
+      `${root}/${representation.file}`
+    );
+    if (data) item.setDataForType(data, representation.type);
+  }
+  items.push(item);
+}
+const pasteboard = $.NSPasteboard.generalPasteboard;
+pasteboard.clearContents;
+pasteboard.writeObjects($(items));
+'''
+
 
 class PasteError(Exception):
     pass
 
 
+# --- the key press, one group per system ----------------------------------
+
 def _keys(shortcut):
     """'Ctrl+V' -> ['ctrl', 'v'], every one of them a key we know."""
     parts = [key.strip().lower() for key in str(shortcut).split("+") if key.strip()]
@@ -54,41 +137,200 @@ def _xdotool_command(shortcut):
     return ["xdotool", "key", "--clearmodifiers", "+".join(keys)]
 
 
+def _program_keyboard(program, command, hint=""):
+    """A desktop that presses keys by running another program.
+
+    Returns the three fields an entry below is built from: the program's name,
+    whether it is here at all, and the press itself.
+    """
+
+    def ready():
+        return shutil.which(program) is not None
+
+    def press(shortcut, delay):
+        if not ready():
+            raise PasteError(t("{tool} not found, cannot paste automatically.",
+                               tool=program))
+        argv = command(shortcut)
+        time.sleep(delay)  # let the selection settle and focus come back
+        try:
+            res = subprocess.run(argv, capture_output=True, text=True, timeout=10)
+        except (subprocess.SubprocessError, OSError) as exc:
+            raise PasteError(t("Could not run {tool}: {error}",
+                               tool=program, error=exc)) from exc
+        if res.returncode != 0:
+            message = t("{tool} failed: {error}", tool=program,
+                        error=res.stderr.strip() or "unknown error")
+            raise PasteError(f"{message}\n{t(hint)}" if hint else message)
+
+    return {"keyboard": program, "ready": ready, "press": press}
+
+
+def _macos_keys(shortcut):
+    """'Cmd+V' -> (9, 0x100000): where the key sits, and the modifiers on it."""
+    parts = [key.strip().lower() for key in str(shortcut).split("+") if key.strip()]
+    parts = [MAC_ALIASES.get(part, part) for part in parts]
+    if not parts or parts[-1] not in MAC_KEYCODES:
+        raise PasteError(t("Unknown key: {key}", key=parts[-1] if parts else shortcut))
+    flags = 0
+    for part in parts[:-1]:
+        if part not in MAC_FLAGS:
+            raise PasteError(t("Unknown key: {key}", key=part))
+        flags |= MAC_FLAGS[part]
+    return MAC_KEYCODES[parts[-1]], flags
+
+
+@functools.lru_cache(maxsize=1)
+def _macos_api():
+    """The bit of CoreGraphics and Accessibility a paste goes through.
+
+    Loaded on the first paste rather than at import: this module is read on
+    every system, and these two frameworks exist on one of them.
+    """
+    try:
+        services = ctypes.CDLL(
+            "/System/Library/Frameworks/ApplicationServices.framework"
+            "/ApplicationServices"
+        )
+        core = ctypes.CDLL(
+            "/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation"
+        )
+    except OSError as exc:
+        raise PasteError(t("Could not run {tool}: {error}",
+                           tool="CoreGraphics", error=exc)) from exc
+    services.AXIsProcessTrusted.argtypes = []
+    services.AXIsProcessTrusted.restype = ctypes.c_bool
+    services.CGEventCreateKeyboardEvent.argtypes = [
+        ctypes.c_void_p, ctypes.c_ushort, ctypes.c_bool,
+    ]
+    services.CGEventCreateKeyboardEvent.restype = ctypes.c_void_p
+    services.CGEventSetFlags.argtypes = [ctypes.c_void_p, ctypes.c_uint64]
+    services.CGEventSetFlags.restype = None
+    services.CGEventPost.argtypes = [ctypes.c_uint32, ctypes.c_void_p]
+    services.CGEventPost.restype = None
+    core.CFRelease.argtypes = [ctypes.c_void_p]
+    core.CFRelease.restype = None
+    return services, core
+
+
+def _macos_trusted():
+    """Whether macOS lets this process type into another application."""
+    try:
+        return bool(_macos_api()[0].AXIsProcessTrusted())
+    except PasteError:
+        return False
+
+
+_asked_for_permission = False
+
+
+def _ask_for_permission():
+    """Open the one settings pane that grants it, and only the first time.
+
+    Every dictation would otherwise reopen it until the box is ticked, which is
+    a window in the user's face on top of the paste that did not happen.
+    """
+    global _asked_for_permission
+    if _asked_for_permission:
+        return
+    _asked_for_permission = True
+    try:
+        subprocess.Popen(
+            ["open", ("x-apple.systempreferences:com.apple.preference.security"
+                      "?Privacy_Accessibility")],
+            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, close_fds=True,
+        )
+    except OSError:
+        pass
+
+
+def _macos_press(shortcut, delay):
+    """Post the key down and up straight into the window system.
+
+    Nothing is typed anywhere until macOS has been told to trust Dikte, and it
+    only asks once, when the paste it was granted for is first tried.
+    """
+    keycode, flags = _macos_keys(shortcut)
+    services, core = _macos_api()
+    if not _macos_trusted():
+        _ask_for_permission()
+        raise PasteError(t(
+            "macOS has not been told to let Dikte press keys. Turn Dikte on "
+            "under System Settings → Privacy & Security → Accessibility."
+        ))
+
+    time.sleep(delay)  # let the selection settle and focus come back
+    down = services.CGEventCreateKeyboardEvent(None, keycode, True)
+    up = services.CGEventCreateKeyboardEvent(None, keycode, False)
+    if not down or not up:
+        for event in (down, up):
+            if event:
+                core.CFRelease(event)
+        raise PasteError(t("Could not run {tool}: {error}", tool="CoreGraphics",
+                           error="it would not make a keyboard event"))
+    try:
+        for event in (down, up):
+            services.CGEventSetFlags(event, flags)
+            services.CGEventPost(HID_EVENT_TAP, event)
+            time.sleep(0.01)
+    finally:
+        core.CFRelease(down)
+        core.CFRelease(up)
+
+
+# --- which of them is here -------------------------------------------------
+
 Desktop = collections.namedtuple(
     "Desktop",
-    # The two programs, the packages to install them from, how to build the key
+    # The clipboard program and the two commands it is run with, what to
-    # press, and what else to say when the key press fails.
+    # install when it is missing, the paste combinations Settings offers, and
-    "clipboard keyboard packages read_command copy_command key_command key_hint",
+    # the key press: the program that does it, whether it can happen at all,
+    # and the pressing itself.
+    "clipboard packages read_command copy_command shortcuts keyboard ready press",
 )
 
 WAYLAND = Desktop(
     clipboard="wl-copy",
-    keyboard="ydotool",
     packages="wl-clipboard and ydotool",
     read_command=["wl-paste", "--no-newline"],
     copy_command=["wl-copy"],
-    key_command=_ydotool_command,
+    shortcuts=["ctrl+v", "ctrl+shift+v", "shift+insert"],
-    key_hint="Is ydotoold running? (systemctl --user status ydotool)",
+    **_program_keyboard(
+        "ydotool", _ydotool_command,
+        hint="Is ydotoold running? (systemctl --user status ydotool)",
+    ),
 )
 
 X11 = Desktop(
     clipboard="xclip",
-    keyboard="xdotool",
     packages="xclip and xdotool",
     read_command=["xclip", "-selection", "clipboard", "-out"],
     copy_command=["xclip", "-selection", "clipboard", "-in"],
-    key_command=_xdotool_command,
+    shortcuts=["ctrl+v", "ctrl+shift+v", "shift+insert"],
-    key_hint="",
+    **_program_keyboard("xdotool", _xdotool_command),
+)
+
+MACOS = Desktop(
+    clipboard="pbcopy",
+    packages="",   # both are part of macOS; there is nothing to install
+    read_command=["pbpaste"],
+    copy_command=["pbcopy"],
+    shortcuts=["cmd+v", "cmd+shift+v", "cmd+alt+shift+v"],
+    keyboard="",   # no program: the key press is a call into the system
+    ready=_macos_trusted,
+    press=_macos_press,
 )
 
 
 def desktop():
-    """The pair of programs this session's clipboard and keyboard go through.
+    """The programs this session's clipboard and key press go through.
 
     Read every time rather than settled at import: a session started before the
     display server was up would otherwise be stuck with the wrong answer, and a
     test would have nowhere to say which one it means.
     """
+    if sys.platform == "darwin":
+        return MACOS
     if os.environ.get("XDG_SESSION_TYPE") == "x11":
         return X11
     if os.environ.get("DISPLAY") and not os.environ.get("WAYLAND_DISPLAY"):
@@ -98,8 +340,45 @@ def desktop():
 
 # --- the clipboard ---------------------------------------------------------
 
+def _macos_snapshot():
+    """Copy every native pasteboard type to a temporary, file-backed snapshot."""
+    directory = tempfile.mkdtemp(prefix="dikte-clipboard-")
+    environment = dict(os.environ, DIKTE_PASTEBOARD_DIR=directory)
+    try:
+        result = subprocess.run(
+            ["osascript", "-l", "JavaScript", "-e", _MAC_SNAPSHOT_SCRIPT],
+            capture_output=True, text=True, timeout=15, env=environment,
+        )
+        manifest = result.stdout.strip()
+        rows = json.loads(manifest) if result.returncode == 0 else None
+        if not isinstance(rows, list):
+            raise ValueError("the pasteboard helper returned no manifest")
+        return _MAC_SNAPSHOT(directory, manifest)
+    except (json.JSONDecodeError, OSError, subprocess.SubprocessError, ValueError):
+        shutil.rmtree(directory, ignore_errors=True)
+        return None
+
+
+def _macos_restore(snapshot):
+    """Put a native snapshot back, then discard its short-lived files."""
+    environment = dict(os.environ, DIKTE_PASTEBOARD_DIR=snapshot.directory)
+    try:
+        subprocess.run(
+            ["osascript", "-l", "JavaScript", "-e", _MAC_RESTORE_SCRIPT],
+            input=snapshot.manifest, stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL, text=True, timeout=15, env=environment,
+        )
+    except (OSError, subprocess.SubprocessError):
+        pass
+    finally:
+        shutil.rmtree(snapshot.directory, ignore_errors=True)
+
 def read_clipboard():
     here = desktop()
+    if here is MACOS and shutil.which("osascript"):
+        snapshot = _macos_snapshot()
+        if snapshot is not None:
+            return snapshot
     if not shutil.which(here.read_command[0]):
         return None
     try:
@@ -124,8 +403,11 @@ def _run_copy(payload):
 def copy(text):
     here = desktop()
     if not shutil.which(here.clipboard):
-        raise PasteError(t("{tool} not found. Install {packages}.",
+        raise PasteError(
-                           tool=here.clipboard, packages=here.packages))
+            t("{tool} not found. Install {packages}.",
+              tool=here.clipboard, packages=here.packages) if here.packages
+            else t("{tool} not found.", tool=here.clipboard)
+        )
     try:
         res = _run_copy(text.encode("utf-8"))
     except (subprocess.SubprocessError, OSError) as exc:
@@ -136,6 +418,9 @@ def copy(text):
 
 
 def copy_bytes(data):
+    if isinstance(data, _MAC_SNAPSHOT):
+        _macos_restore(data)
+        return
     if data is None or not shutil.which(desktop().clipboard):
         return
     try:
@@ -147,25 +432,11 @@ def copy_bytes(data):
 # --- the key press ---------------------------------------------------------
 
 def paste_ready():
-    return shutil.which(desktop().keyboard) is not None
+    """Whether a paste can be sent: the program is here, or macOS trusts us."""
+    return desktop().ready()
 
 
-def press(shortcut="ctrl+v", delay=0.12):
+def press(shortcut="", delay=0.12):
-    """Press a key combination, e.g. 'ctrl+v'."""
+    """Press a paste combination, e.g. 'ctrl+v', or this desktop's own."""
     here = desktop()
-    if not paste_ready():
+    here.press(shortcut or here.shortcuts[0], delay)
-        raise PasteError(t("{tool} not found, cannot paste automatically.",
-                           tool=here.keyboard))
-
-    command = here.key_command(shortcut)
-    time.sleep(delay)  # let the selection settle and focus come back
-    try:
-        res = subprocess.run(command, capture_output=True, text=True, timeout=10)
-    except (subprocess.SubprocessError, OSError) as exc:
-        raise PasteError(t("Could not run {tool}: {error}",
-                           tool=here.keyboard, error=exc)) from exc
-    if res.returncode != 0:
-        message = t("{tool} failed: {error}", tool=here.keyboard,
-                    error=res.stderr.strip() or "unknown error")
-        raise PasteError(f"{message}\n{t(here.key_hint)}" if here.key_hint
-                         else message)

settings_ui.py

@@ -23,6 +23,7 @@ import ggml
 import hotkey
 import ipc
 import meeting
+import paste
 from filetranscribe import FileTranscriber
 from i18n import t
 
@@ -106,7 +107,6 @@ REASONING_LEVELS = [
     ("Low", "low"), ("Medium", "medium"), ("High", "high"),
     ("Very high", "xhigh"), ("Maximum", "max"),
 ]
-PASTE_SHORTCUTS = ["ctrl+v", "ctrl+shift+v", "shift+insert"]
 # Offered for every global shortcut, which keeps them one kind of field rather
 # than four. The boxes stay editable: this is a shortlist of combinations that
 # are usually free, not the set of ones that work.
@@ -116,6 +116,13 @@ SHORTCUTS = [
     "Meta+A", "Meta+D", "Meta+M",
     "Ctrl+Alt+F1", "Ctrl+Alt+F2", "Ctrl+Alt+F3",
 ]
+# Cmd+Space is Spotlight and Ctrl+Space switches input sources, so a Mac gets
+# its own shortlist. Option is what Alt is called on that keyboard.
+MAC_SHORTCUTS = [
+    "Ctrl+Option+Space", "Cmd+Shift+Space", "Ctrl+Shift+Space",
+    "Ctrl+Option+A", "Ctrl+Option+D", "Ctrl+Option+M",
+    "Cmd+Option+A", "Cmd+Option+D", "Cmd+Option+M",
+]
 AUDIO_FILTER = ("*.mp3 *.wav *.m4a *.ogg *.opus *.flac *.aac *.wma "
                 "*.mp4 *.mkv *.webm *.mov *.avi")
 
@@ -550,10 +557,16 @@ class SettingsWindow(QDialog):
         form.addRow("", self.auto_paste)
 
         self.paste_shortcut = QComboBox()
-        self.paste_shortcut.addItems(PASTE_SHORTCUTS)
+        # A shortlist of the combinations that usually paste, not the set of
-        self.paste_shortcut.setToolTip(
+        # them: a stored one this desktop does not offer is kept as it is
-            t("Terminals usually want ctrl+shift+v. Change this if pasting does nothing.")
+        # rather than quietly replaced by the first item on the list.
-        )
+        self.paste_shortcut.setEditable(True)
+        self.paste_shortcut.addItems(paste.desktop().shortcuts)
+        self.paste_shortcut.setToolTip(t(
+            "macOS asks for Accessibility permission the first time this is sent."
+            if paste.desktop() is paste.MACOS else
+            "Terminals usually want ctrl+shift+v. Change this if pasting does nothing."
+        ))
         form.addRow(t("Paste key"), self.paste_shortcut)
 
         self.restore_clipboard = QCheckBox(t("Restore the previous clipboard after pasting"))
@@ -591,7 +604,9 @@ class SettingsWindow(QDialog):
         )
         form.addRow("", self.filter_hallucinations)
 
-        self.keep_audio = QCheckBox(t("Keep audio files (~/.local/share/dikte/recordings)"))
+        self.keep_audio = QCheckBox(
+            t("Keep audio files ({path})", path=str(cfg.RECORDINGS_DIR))
+        )
         form.addRow("", self.keep_audio)
         return page
 
@@ -984,6 +999,15 @@ class SettingsWindow(QDialog):
             self.meeting_system.addItem(desc, name)
         sources_form.addRow(t("The other participants"), self.meeting_system)
 
+        if audio.sound() is audio.COREAUDIO:
+            mac_note = QLabel(t(
+                "macOS does not offer what the speakers are playing as something "
+                "to record. Install BlackHole or Loopback, send the meeting's "
+                "sound through it, and pick it above."
+            ))
+            mac_note.setWordWrap(True)
+            sources_form.addRow(mac_note)
+
         note = QLabel(t(
             "Wear headphones if you can. Through speakers your microphone hears "
             "the other side as well, and although a line that lands on both "
@@ -1224,20 +1248,34 @@ class SettingsWindow(QDialog):
         layout.addLayout(form)
 
         self.evdev_enabled = QCheckBox(t(
-            "Use the built-in listener (/dev/input), for when the KDE shortcut is "
+            "Use the built-in listener (/dev/input), for when the {desktop} "
-            "not active yet"
+            "shortcut is not active yet", desktop=hotkey.desktop_name()
         ))
         self.evdev_enabled.setToolTip(t(
             "Works immediately, no session restart. The only difference: the key "
             "combination also reaches the focused application."
         ))
         layout.addWidget(self.evdev_enabled)
+        # Nothing to wait for where nothing is installed: there the listener is
+        # the mechanism, always on, and not a choice to offer.
+        self.evdev_enabled.setVisible(hotkey.installs_shortcuts())
 
-        note = QLabel(t(
+        if hotkey.shortcut_needs_restart():
-            "KWin only reads shortcut settings at startup. After 'Install' the "
+            explanation = t(
-            "shortcut shows up under System Settings → Shortcuts, but it will not "
+                "KWin only reads shortcut settings at startup. After 'Install' the "
-            "fire until you log out and back in. Until then, use the built-in listener."
+                "shortcut shows up under System Settings → Shortcuts, but it will "
-        ))
+                "not fire until you log out and back in. Until then, use the "
+                "built-in listener."
+            )
+        elif hotkey.installs_shortcuts():
+            explanation = t("The shortcut starts working as soon as it is installed.")
+        else:
+            explanation = t(
+                "Dikte asks macOS for these combinations itself, while it is "
+                "running. Nothing is installed, and no other application receives "
+                "them in the meantime."
+            )
+        note = QLabel(explanation)
         note.setWordWrap(True)
         layout.addWidget(note)
         layout.addStretch(1)
@@ -1310,7 +1348,8 @@ class SettingsWindow(QDialog):
         """The field a global shortcut is typed or picked in."""
         box = QComboBox()
         box.setEditable(True)
-        box.addItems(SHORTCUTS)
+        box.addItems(MAC_SHORTCUTS if hotkey.desktop_name() == "macOS"
+                     else SHORTCUTS)
         box.setCurrentText("")
         if placeholder:
             box.lineEdit().setPlaceholderText(placeholder)
@@ -1344,17 +1383,32 @@ class SettingsWindow(QDialog):
         box = self._shortcut_box(placeholder or t("none"))
         if tooltip:
             box.setToolTip(tooltip)
-        install = QPushButton(t("Install as a KDE shortcut"))
+        form.addRow(label, self._row(box, *self._install_buttons(
-        install.clicked.connect(lambda: self._install_shortcut(which))
+            lambda: self._install_shortcut(which),
-        remove = QPushButton(t("Remove"))
+            lambda: self._remove_shortcut(which),
-        remove.clicked.connect(lambda: self._remove_shortcut(which))
+        )))
-        form.addRow(label, self._row(box, install, remove))
         status = QLabel("")
         status.setWordWrap(True)
         form.addRow(status)
         self._shortcut_rows[which] = (box, status, missing)
         return box
 
+    @staticmethod
+    def _install_buttons(install_handler, remove_handler):
+        """Install and Remove, where this system has somewhere to install into.
+
+        macOS has not: Dikte asks for the combination itself while it runs, so
+        there is nothing to write down and nothing to take back out.
+        """
+        if not hotkey.installs_shortcuts():
+            return []
+        install = QPushButton(t("Install as a {desktop} shortcut",
+                                desktop=hotkey.desktop_name()))
+        install.clicked.connect(install_handler)
+        remove = QPushButton(t("Remove"))
+        remove.clicked.connect(remove_handler)
+        return [install, remove]
+
     @staticmethod
     def _row(*widgets):
         """Widgets side by side in one form row; the first one takes the space."""

tests/__init__.py

@@ -17,6 +17,11 @@ os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
 _SANDBOX = tempfile.mkdtemp(prefix="dikte-tests-")
 os.environ["XDG_CONFIG_HOME"] = os.path.join(_SANDBOX, "config")
 os.environ["XDG_DATA_HOME"] = os.path.join(_SANDBOX, "data")
+# Home goes with them: the shortcut file, the applications directory and every
+# macOS path start from it rather than from an XDG variable, and a test run is
+# not allowed to touch the real one.
+os.environ["HOME"] = os.path.join(_SANDBOX, "home")
+os.makedirs(os.environ["HOME"], exist_ok=True)
 atexit.register(shutil.rmtree, _SANDBOX, True)
 
 # A key sitting in the environment would otherwise reach the code that falls

tests/test_audio.py

@@ -1,8 +1,12 @@
-"""Level metering, the WAV writer, and what pactl is asked for.
+"""Level metering, the WAV writer, and what the sound system is asked for.
 
 The device list is where a platform port lands first, so the parsing is pinned
-here: a source that is not a monitor is an input, one that is belongs to the
+here: on Linux a source that is not a monitor is an input, one that is belongs
-speakers, and neither list may go missing when pactl is absent.
+to the speakers, and neither list may go missing when pactl is absent. macOS
+answers the same three questions out of one ffmpeg listing.
+
+Each class says which machine it is standing on, so both halves run on either
+one: nothing here reaches a real sound server.
 """
 
 import array
@@ -11,6 +15,7 @@ import io
 import json
 import os
 import subprocess
+import sys
 import unittest
 import wave
 from unittest import mock
@@ -19,7 +24,6 @@ import audio
 from tests.support import (
     DikteTest,
     FakeCompleted,
-    linux_only,
     only_these_tools,
     pcm,
     silence,
@@ -28,6 +32,22 @@ from tests.support import (
 )
 
 
+class OnLinux:
+    """A test that runs as if the machine ran PulseAudio or PipeWire."""
+
+    def setUp(self):
+        super().setUp()
+        self.enterContext(mock.patch.object(sys, "platform", "linux"))
+
+
+class OnMacOS:
+    """A test that runs as if the machine were a Mac."""
+
+    def setUp(self):
+        super().setUp()
+        self.enterContext(mock.patch.object(sys, "platform", "darwin"))
+
+
 class ChunkLevels(unittest.TestCase):
     def test_silence(self):
         self.assertEqual(audio.chunk_levels(silence(0.1)), (0.0, 0.0))
@@ -115,8 +135,7 @@ SOURCES = [
 ]
 
 
-@linux_only
+class Devices(OnLinux, DikteTest):
-class Devices(DikteTest):
     @contextlib.contextmanager
     def pactl(self, sources=None, sink=None, tools=("pactl",)):
         payloads = {
@@ -216,8 +235,7 @@ class FakeProcess:
         self._alive = False
 
 
-@linux_only
+class RecordingCommand(OnLinux, DikteTest):
-class RecordingCommand(DikteTest):
     """Which program captures the microphone, and how it is asked to."""
 
     def test_parec_is_preferred(self):
@@ -270,8 +288,7 @@ class RecordingCommand(DikteTest):
                                   if arg.startswith(flag)])
 
 
-@linux_only
+class RecorderChain(OnLinux, DikteTest):
-class RecorderChain(DikteTest):
     """Start to WAV, with pw-record faked out."""
 
     def record(self, data, target="", max_seconds=300):
@@ -404,5 +421,146 @@ class RecorderChain(DikteTest):
         self.assertFalse(recorder.active)
 
 
+class MeetingCommand(unittest.TestCase):
+    """One process reading both devices, because two would drift apart."""
+
+    def command(self, platform, mic="", system="them"):
+        with mock.patch.object(sys, "platform", platform):
+            return audio.meeting_command(mic, system)
+
+    def test_linux_reads_both_through_pulse(self):
+        cmd = self.command("linux", mic="mine")
+        self.assertEqual(cmd.count("pulse"), 2)
+        self.assertEqual(cmd[cmd.index("mine") - 1], "-i")
+        self.assertEqual(cmd[cmd.index("them") - 1], "-i")
+
+    def test_a_mac_reads_both_through_avfoundation(self):
+        cmd = self.command("darwin", mic="1")
+        self.assertEqual(cmd.count("avfoundation"), 2)
+        self.assertIn(":1", cmd)
+        self.assertIn(":them", cmd)
+
+    def test_no_microphone_named_means_the_default_one(self):
+        self.assertIn("default", self.command("linux"))
+        self.assertIn(":default", self.command("darwin"))
+
+    def test_both_merge_the_two_into_one_stereo_stream(self):
+        for platform in ("linux", "darwin"):
+            with self.subTest(platform=platform):
+                cmd = self.command(platform)
+                self.assertIn(audio.MERGE_FILTER, cmd)
+                self.assertEqual(cmd[cmd.index("-map") + 1], "[out]")
+                self.assertEqual(cmd[cmd.index("-f", cmd.index("-map")) + 1], "s16le")
+
+    def test_neither_lets_ffmpeg_read_the_terminal(self):
+        """It shares stdin with Dikte, and would eat a keypress meant for it."""
+        for platform in ("linux", "darwin"):
+            with self.subTest(platform=platform):
+                self.assertIn("-nostdin", self.command(platform))
+
+
+class MacDevices(OnMacOS, DikteTest):
+    """The one ffmpeg listing all three device questions are answered from."""
+
+    LISTING = (
+        "[AVFoundation indev @ 0x7fb] AVFoundation video devices:\n"
+        "[AVFoundation indev @ 0x7fb] [0] FaceTime HD Camera\n"
+        "[AVFoundation indev @ 0x7fb] [1] Capture screen 0\n"
+        "[AVFoundation indev @ 0x7fb] AVFoundation audio devices:\n"
+        "[AVFoundation indev @ 0x7fb] [0] MacBook Pro Microphone\n"
+        "[AVFoundation indev @ 0x7fb] [1] BlackHole 2ch\n"
+        ": Input/output error\n"
+    )
+
+    @contextlib.contextmanager
+    def listing(self, stderr=None, tools=("ffmpeg",)):
+        completed = FakeCompleted(
+            returncode=1, stderr=self.LISTING if stderr is None else stderr)
+        with only_these_tools(*tools), \
+                mock.patch.object(subprocess, "run", return_value=completed):
+            yield
+
+    def test_the_audio_half_of_the_listing_is_the_only_half_read(self):
+        with self.listing():
+            self.assertEqual(audio.list_sources(),
+                             [("0", "MacBook Pro Microphone"), ("1", "BlackHole 2ch")])
+
+    def test_the_index_is_what_ffmpeg_is_given_and_the_name_what_is_shown(self):
+        with self.listing():
+            name, description = audio.list_sources()[1]
+        self.assertEqual(name, "1")
+        self.assertIn("BlackHole", description)
+
+    def test_no_ffmpeg_installed(self):
+        with only_these_tools():
+            self.assertEqual(audio.list_sources(), [])
+            self.assertEqual(audio.list_monitors(), [])
+            self.assertEqual(audio.default_monitor(), "")
+
+    def test_an_ffmpeg_that_will_not_run(self):
+        with only_these_tools("ffmpeg"), \
+                mock.patch.object(subprocess, "run", side_effect=OSError("nope")):
+            self.assertEqual(audio.list_sources(), [])
+
+    def test_a_listing_with_no_audio_section(self):
+        with self.listing(stderr="[AVFoundation indev @ 0x7fb] [0] FaceTime\n"):
+            self.assertEqual(audio.list_sources(), [])
+
+    def test_the_far_side_of_a_meeting_is_offered_the_same_devices(self):
+        """macOS calls none of them an output, so the loopback one is in here."""
+        with self.listing():
+            self.assertEqual(audio.list_monitors(), audio.list_sources())
+
+    def test_the_loopback_driver_is_picked_out_by_name(self):
+        with self.listing():
+            self.assertEqual(audio.default_monitor(), "1")
+
+    def test_the_other_two_drivers_people_install(self):
+        for name in ("Loopback Audio", "Soundflower (2ch)"):
+            with self.subTest(name=name):
+                listing = ("AVFoundation audio devices:\n"
+                           f"[0] Built-in Microphone\n[1] {name}\n")
+                with self.listing(stderr=listing):
+                    self.assertEqual(audio.default_monitor(), "1")
+
+    def test_a_mac_with_nothing_to_record_the_far_side_from(self):
+        listing = "AVFoundation audio devices:\n[0] MacBook Pro Microphone\n"
+        with self.listing(stderr=listing):
+            self.assertEqual(audio.default_monitor(), "")
+
+
+class MacRecordingCommand(OnMacOS, DikteTest):
+    def test_the_microphone_is_read_through_avfoundation(self):
+        with only_these_tools("ffmpeg"):
+            cmd = audio.recording_command()
+        self.assertEqual(cmd[0], "ffmpeg")
+        self.assertEqual(cmd[cmd.index("-f") + 1], "avfoundation")
+
+    def test_the_empty_half_in_front_of_the_colon_is_the_missing_picture(self):
+        with only_these_tools("ffmpeg"):
+            self.assertIn(":default", audio.recording_command())
+            self.assertIn(":2", audio.recording_command("2"))
+
+    def test_it_captures_the_format_the_rest_of_the_code_expects(self):
+        with only_these_tools("ffmpeg"):
+            cmd = audio.recording_command()
+        self.assertEqual(cmd[cmd.index("-ar") + 1], str(audio.RATE))
+        self.assertEqual(cmd[cmd.index("-ac") + 1], str(audio.CHANNELS))
+        self.assertEqual(cmd[-2:], ["s16le", "-"])
+
+    def test_no_ffmpeg_installed(self):
+        with only_these_tools():
+            self.assertEqual(audio.recording_command(), [])
+
+    def test_what_a_mac_is_told_to_install(self):
+        recorder = audio.Recorder()
+        failures = []
+        recorder.failed.connect(failures.append)
+        with only_these_tools():
+            recorder.start()
+        self.assertIn("brew install ffmpeg", failures[0])
+        self.assertFalse(recorder.active)
+
+
 if __name__ == "__main__":
     unittest.main()

tests/test_config.py

@@ -16,6 +16,7 @@ import cleanup
 import config as cfg
 import ggml
 import i18n
+import paste
 from tests.support import DikteTest
 
 
@@ -453,6 +454,39 @@ class Defaults(unittest.TestCase):
                 with self.subTest(prompt=f"{name}_{suffix}"):
                     self.assertTrue(getattr(cfg, f"{name}_{suffix}").strip())
 
+    def test_the_paste_key_is_the_one_this_desktop_pastes_with(self):
+        """cmd+v on a Mac, and it must be one paste.py can actually press."""
+        self.assertEqual(cfg.DEFAULTS["paste_shortcut"],
+                         paste.desktop().shortcuts[0])
+
+
+class Directories(unittest.TestCase):
+    """Where the settings and the recordings are kept, per system."""
+
+    def test_linux_keeps_them_apart_and_follows_xdg(self):
+        with mock.patch.dict(os.environ, {"XDG_CONFIG_HOME": "/c",
+                                          "XDG_DATA_HOME": "/d"}):
+            config_dir, data_dir = cfg._directories("linux")
+        self.assertEqual(str(config_dir), "/c/dikte")
+        self.assertEqual(str(data_dir), "/d/dikte")
+
+    def test_linux_without_the_variables_set(self):
+        with mock.patch.dict(os.environ, {}, clear=True):
+            config_dir, data_dir = cfg._directories("linux")
+        self.assertTrue(str(config_dir).endswith("/.config/dikte"))
+        self.assertTrue(str(data_dir).endswith("/.local/share/dikte"))
+
+    def test_a_mac_keeps_both_in_application_support(self):
+        config_dir, data_dir = cfg._directories("darwin")
+        self.assertEqual(config_dir, data_dir)
+        self.assertTrue(str(config_dir).endswith("/Library/Application Support/Dikte"))
+
+    def test_a_mac_does_not_read_the_xdg_variables(self):
+        """A Mac with them set from some other tool still stores in one place."""
+        with mock.patch.dict(os.environ, {"XDG_CONFIG_HOME": "/c"}):
+            config_dir, _ = cfg._directories("darwin")
+        self.assertNotIn("/c", str(config_dir))
+
 
 if __name__ == "__main__":
     unittest.main()

tests/test_ggml.py

@@ -176,6 +176,9 @@ class Download(Local):
 class InstallProgram(Local):
     def setUp(self):
         super().setUp()
+        # These fixtures are Ubuntu release archives.  Keep checking that path
+        # on every host, including the Mac that checks the macOS backend.
+        self.patch_attr(sys, "platform", "linux")
         # Built once, because the release listing has to publish its checksum
         # and a tarball is not the same bytes twice.
         self.archive = tarball({
@@ -216,6 +219,23 @@ class InstallProgram(Local):
                 ggml.install_program(ggml.WHISPER)
         self.assertIn("this machine", str(caught.exception))
 
+    def test_a_mac_does_not_install_an_ubuntu_archive_for_the_same_architecture(self):
+        self.patch_attr(sys, "platform", "darwin")
+        self.patch_attr(ggml, "_arch", lambda: "arm64")
+        listing = self.release("whisper-bin-ubuntu-arm64.tar.gz")
+        with fake_urlopen(listing):
+            with self.assertRaises(ggml.LocalError) as caught:
+                ggml.install_program(ggml.WHISPER)
+        self.assertIn("brew install whisper-cpp", str(caught.exception))
+
+    def test_a_mac_uses_the_native_llama_archive_instead_of_ubuntu(self):
+        self.patch_attr(sys, "platform", "darwin")
+        self.patch_attr(ggml, "_arch", lambda: "arm64")
+        self.assertEqual(
+            ggml._wanted_assets(ggml.LLAMA),
+            ("bin-macos-arm64.tar.gz",),
+        )
+
     def test_what_was_installed_is_remembered(self):
         path, _ = self.install("whisper-bin-ubuntu-x64.tar.gz")
         self.assertEqual(ggml.installed_program(ggml.WHISPER), path)
@@ -661,4 +681,3 @@ class Sizes(DikteTest):
         self.assertEqual(ggml.human_size(512), "512 B")
         self.assertEqual(ggml.human_size(574041195), "547.4 MB")
         self.assertEqual(ggml.human_size(3_095_033_483), "2.9 GB")
-

tests/test_hotkey.py

@@ -163,10 +163,13 @@ class Bindings(DikteTest):
         self.assertEqual(fired({29, 42}), [])              # ctrl + shift
 
 
-@linux_only
 class Chooser(DikteTest):
     """Which desktop is asked to register the shortcut."""
 
+    def setUp(self):
+        super().setUp()
+        self.patch_attr(hotkey.sys, "platform", "linux")
+
     @contextlib.contextmanager
     def under(self, desktop, has_gsettings=True):
         """A session that says it is this desktop, with or without gsettings."""
@@ -447,5 +450,236 @@ class KdeShortcut(DikteTest):
         self.assertEqual(hotkey.conflicting_shortcuts("Ctrl+Space"), [])
 
 
+# --- macOS ----------------------------------------------------------------
+
+class ParseMacShortcut(unittest.TestCase):
+    def test_a_combination_a_mac_would_use(self):
+        self.assertEqual(hotkey.parse_macos_shortcut("Cmd+Space"),
+                         (hotkey.MAC_MODS["cmd"], 49))
+
+    def test_case_and_spacing_do_not_matter(self):
+        self.assertEqual(hotkey.parse_macos_shortcut(" ctrl + option + a "),
+                         hotkey.parse_macos_shortcut("Ctrl+Option+A"))
+
+    def test_several_modifiers_are_one_number(self):
+        modifiers, key = hotkey.parse_macos_shortcut("Cmd+Shift+M")
+        self.assertEqual(modifiers,
+                         hotkey.MAC_MODS["cmd"] | hotkey.MAC_MODS["shift"])
+        self.assertEqual(key, hotkey.MAC_KEYS["m"])
+
+    def test_the_names_a_mac_keyboard_uses(self):
+        for name in ("cmd", "command", "meta", "super"):
+            with self.subTest(name=name):
+                self.assertEqual(hotkey.parse_macos_shortcut(f"{name}+space"),
+                                 hotkey.parse_macos_shortcut("cmd+space"))
+        self.assertEqual(hotkey.parse_macos_shortcut("option+a"),
+                         hotkey.parse_macos_shortcut("alt+a"))
+
+    def test_a_key_on_its_own(self):
+        self.assertEqual(hotkey.parse_macos_shortcut("F5"), (0, 96))
+
+    def test_modifiers_with_no_key(self):
+        self.assertEqual(hotkey.parse_macos_shortcut("Cmd+Shift"), (None, None))
+
+    def test_a_key_nobody_mapped(self):
+        self.assertEqual(hotkey.parse_macos_shortcut("Cmd+F13"), (None, None))
+
+    def test_two_keys_are_not_a_shortcut(self):
+        self.assertEqual(hotkey.parse_macos_shortcut("A+B"), (None, None))
+
+    def test_nothing(self):
+        self.assertEqual(hotkey.parse_macos_shortcut(""), (None, None))
+        self.assertEqual(hotkey.parse_macos_shortcut(None), (None, None))
+
+
+class FakeCarbon:
+    """Enough of Carbon to watch what the listener asks it for.
+
+    The references are numbers standing in for pointers, which is all the code
+    does with them: it collects them and hands them back to be unregistered.
+    """
+
+    def __init__(self, install=0, register=0):
+        self.install, self.register = install, register   # what they return
+        self.registered = []     # (key, modifiers, identifier)
+        self.unregistered = []
+        self.handlers_removed = 0
+        self.pressed_id = 0
+        self.parameter_result = 0
+
+    def GetApplicationEventTarget(self):
+        return 7000
+
+    def InstallEventHandler(self, target, callback, count, spec, data, out):
+        if self.install == 0:
+            out._obj.value = 8000
+        return self.install
+
+    def RegisterEventHotKey(self, key, modifiers, identifier, target, options, out):
+        if self.register != 0:
+            return self.register
+        self.registered.append((key, modifiers, identifier.id))
+        out._obj.value = 9000 + len(self.registered)
+        return 0
+
+    def UnregisterEventHotKey(self, reference):
+        self.unregistered.append(reference.value)
+        return 0
+
+    def RemoveEventHandler(self, handler):
+        self.handlers_removed += 1
+        return 0
+
+    def GetEventParameter(self, event, kind, name, wanted_type, size, out_size, out):
+        out._obj.id = self.pressed_id
+        return self.parameter_result
+
+
+class CarbonListener(DikteTest):
+    """What the listener asks macOS for, without a Mac to ask."""
+
+    def setUp(self):
+        super().setUp()
+        self.carbon = FakeCarbon()
+        self.patch_attr(hotkey, "_carbon", lambda: self.carbon)
+        self.addCleanup(hotkey._REGISTERED.clear)
+        self.listener = hotkey.CarbonHotkey()
+        self.addCleanup(self.listener.stop)
+        self.failures = []
+        self.listener.failed.connect(self.failures.append)
+
+    def test_every_binding_is_asked_for_by_position_and_modifier(self):
+        self.assertTrue(self.listener.start({"toggle": "Ctrl+Option+Space"}))
+        self.assertEqual(self.carbon.registered,
+                         [(49, hotkey.MAC_MODS["ctrl"] | hotkey.MAC_MODS["option"], 1)])
+        self.assertEqual(self.failures, [])
+        self.assertTrue(self.listener.running)
+
+    def test_a_binding_with_no_shortcut_is_skipped(self):
+        self.assertFalse(self.listener.start({"toggle": "", "ask": ""}))
+        self.assertEqual(self.carbon.registered, [])
+        self.assertFalse(self.listener.running)
+
+    def test_an_unparsable_shortcut_is_reported_and_the_rest_go_on(self):
+        self.assertTrue(self.listener.start({"toggle": "Cmd+F13",
+                                             "ask": "Cmd+Shift+Space"}))
+        self.assertEqual(len(self.failures), 1)
+        self.assertIn("Cmd+F13", self.failures[0])
+        self.assertEqual(len(self.carbon.registered), 1)
+
+    def test_a_combination_another_application_already_holds(self):
+        """The conflict warning macOS has: it is the answer to asking."""
+        self.carbon.register = -9878        # eventHotKeyExistsErr
+        self.assertFalse(self.listener.start({"toggle": "Cmd+Shift+Space"}))
+        self.assertIn("Cmd+Shift+Space", self.failures[0])
+        self.assertFalse(self.listener.running)
+
+    def test_a_handler_that_will_not_install(self):
+        self.carbon.install = -50
+        self.assertFalse(self.listener.start({"toggle": "Cmd+Shift+Space"}))
+        self.assertEqual(self.carbon.registered, [])
+        self.assertEqual(len(self.failures), 1)
+
+    def test_no_carbon_to_talk_to(self):
+        self.patch_attr(hotkey, "_carbon",
+                        mock.Mock(side_effect=OSError("no such library")))
+        self.assertFalse(self.listener.start({"toggle": "Cmd+Shift+Space"}))
+        self.assertIn("no such library", self.failures[0])
+
+    def test_the_key_press_arrives_under_the_name_it_was_registered_with(self):
+        self.listener.start({"toggle": "Cmd+Shift+Space", "ask": "Cmd+Shift+A"})
+        heard = []
+        self.listener.triggered.connect(heard.append)
+        self.carbon.pressed_id = 2          # the second binding, which is "ask"
+        self.listener._callback(None, 0, None)
+        self.assertEqual(heard, ["ask"])
+
+    def test_a_press_carbon_could_not_identify_is_dropped(self):
+        self.listener.start({"toggle": "Cmd+Shift+Space"})
+        heard = []
+        self.listener.triggered.connect(heard.append)
+        self.carbon.parameter_result = -50
+        self.listener._callback(None, 0, None)
+        self.assertEqual(heard, [])
+
+    def test_stopping_hands_every_registration_back(self):
+        self.listener.start({"toggle": "Cmd+Shift+Space", "ask": "Cmd+Shift+A"})
+        self.listener.stop()
+        self.assertEqual(self.carbon.unregistered, [9001, 9002])
+        self.assertEqual(self.carbon.handlers_removed, 1)
+        self.assertFalse(self.listener.running)
+
+    def test_starting_twice_does_not_leave_the_first_set_behind(self):
+        self.listener.start({"toggle": "Cmd+Shift+Space"})
+        self.listener.start({"toggle": "Cmd+Shift+A"})
+        self.assertEqual(self.carbon.unregistered, [9001])
+        self.assertEqual(len(self.listener._registrations), 1)
+
+    def test_what_it_registered_is_what_the_status_line_reads_back(self):
+        with mock.patch.object(hotkey.sys, "platform", "darwin"):
+            self.listener.start({"toggle": "Ctrl+Option+Space",
+                                 "meeting": "Ctrl+Option+M"})
+            self.assertEqual(hotkey.shortcut_status(), "Ctrl+Option+Space")
+            self.assertEqual(hotkey.shortcut_status(hotkey.MEETING_DESKTOP_ID),
+                             "Ctrl+Option+M")
+            self.listener.stop()
+            self.assertIsNone(hotkey.shortcut_status())
+
+
+class MacChooser(DikteTest):
+    """What the shortcut verbs mean where there is nothing to write them into."""
+
+    def setUp(self):
+        super().setUp()
+        self.patch_attr(hotkey.sys, "platform", "darwin")
+        self.addCleanup(hotkey._REGISTERED.clear)
+
+    def test_the_listener_is_the_one_macos_has(self):
+        self.assertIsInstance(hotkey.listener(), hotkey.CarbonHotkey)
+
+    def test_everywhere_else_reads_the_keyboard_itself(self):
+        with mock.patch.object(hotkey.sys, "platform", "linux"):
+            self.assertIsInstance(hotkey.listener(), hotkey.EvdevHotkey)
+
+    def test_there_is_nothing_to_install_into(self):
+        self.assertFalse(hotkey.installs_shortcuts())
+        self.assertFalse(hotkey.shortcut_needs_restart())
+        self.assertEqual(hotkey.desktop_name(), "macOS")
+
+    def test_installing_records_it_rather_than_writing_anything(self):
+        with mock.patch.object(hotkey.subprocess, "run") as run:
+            ok, message = hotkey.install_shortcut("Cmd+Shift+Space", "dikte toggle")
+        run.assert_not_called()
+        self.assertTrue(ok)
+        self.assertIn("Cmd+Shift+Space", message)
+        self.assertEqual(hotkey.shortcut_status(), "Cmd+Shift+Space")
+
+    def test_removing_takes_it_back_out(self):
+        hotkey.install_shortcut("Cmd+Shift+Space", "dikte toggle")
+        hotkey.remove_shortcut()
+        self.assertIsNone(hotkey.shortcut_status())
+
+    def test_each_verb_is_kept_apart(self):
+        hotkey.install_shortcut("Cmd+Shift+Space", "dikte toggle")
+        hotkey.install_shortcut("Cmd+Shift+M", "dikte meeting",
+                                desktop_id=hotkey.MEETING_DESKTOP_ID)
+        self.assertEqual(hotkey.shortcut_status(), "Cmd+Shift+Space")
+        self.assertEqual(hotkey.shortcut_status(hotkey.MEETING_DESKTOP_ID),
+                         "Cmd+Shift+M")
+
+    def test_no_list_of_conflicts_to_read(self):
+        """Not even KDE's file, which a Mac could well have a copy of."""
+        self.assertEqual(hotkey.conflicting_shortcuts("Ctrl+Space"), [])
+
+    def test_a_combination_is_checked_against_the_mac_table(self):
+        self.assertTrue(hotkey.valid_shortcut("Cmd+Shift+Space"))
+        self.assertFalse(hotkey.valid_shortcut("Ctrl+F13"))
+
+    def test_the_other_table_is_the_one_used_elsewhere(self):
+        with mock.patch.object(hotkey.sys, "platform", "linux"):
+            self.assertTrue(hotkey.valid_shortcut("Ctrl+F1"))
+            self.assertFalse(hotkey.valid_shortcut("Cmd+Space"))
+
+
 if __name__ == "__main__":
     unittest.main()

tests/test_paste.py

@@ -1,30 +1,37 @@
 """The clipboard and the key press, which is where a dictation actually lands.
 
-Everything here shells out, so the tools are faked. What the tests hold onto is
+Everything here is faked: the programs the two Linux desktops shell out to, and
-the command line: a paste that presses the wrong keys, or in the wrong order,
+the frameworks macOS goes through. What the tests hold onto is what was asked
-types nothing and looks like a hang.
+for. A paste that presses the wrong keys, or in the wrong order, types nothing
+and looks like a hang.
 
-Both desktops owe the same promises, so those are written once and run against
+Every system owes the same promises about the clipboard, so those are written
-each of them. A third one added to paste.py inherits the same list rather than
+once and run against each of them. A fourth one added to paste.py inherits the
-needing its own copy of it.
+same list rather than needing its own copy of it. Each class says which system
+it is standing on, which is why none of this is skipped anywhere: the Linux half
+is checked on a Mac and the macOS half on Linux, and a change to the chooser
+cannot quietly break the platform nobody is sitting at.
 """
 
 import os
+import pathlib
 import subprocess
+import sys
+import tempfile
 import unittest
 from typing import ClassVar
 from unittest import mock
 
 import paste
-from tests.support import DikteTest, FakeCompleted, linux_only, only_these_tools
+from tests.support import DikteTest, FakeCompleted, only_these_tools
 
 
-@linux_only
 class Chooser(DikteTest):
     """Which pair of programs this session's clipboard goes through."""
 
-    def under(self, **env):
+    def under(self, platform="linux", **env):
-        with mock.patch.dict(os.environ, env, clear=True):
+        with mock.patch.object(sys, "platform", platform), \
+                mock.patch.dict(os.environ, env, clear=True):
             return paste.desktop()
 
     def test_a_wayland_session(self):
@@ -46,18 +53,29 @@ class Chooser(DikteTest):
     def test_nothing_set_at_all(self):
         self.assertIs(self.under(), paste.WAYLAND)
 
+    def test_a_mac(self):
+        self.assertIs(self.under("darwin"), paste.MACOS)
 
-class DesktopContract:
+    def test_a_mac_running_an_x_server_is_still_a_mac(self):
-    """What both desktops owe. Each of them subclasses this once, below."""
+        """XQuartz sets DISPLAY, and none of X's programs are what pastes here."""
+        self.assertIs(self.under("darwin", DISPLAY=":0"), paste.MACOS)
+
+
+class Standing:
+    """A test that runs as if it were sitting at one particular system."""
 
     env: ClassVar[dict] = {}
+    platform = "linux"
     here = None
 
     def setUp(self):
         super().setUp()
+        self.enterContext(mock.patch.object(sys, "platform", self.platform))
         self.enterContext(mock.patch.dict(os.environ, self.env, clear=True))
 
-    # ---- reading the clipboard -------------------------------------------
+
+class ClipboardContract(Standing):
+    """What every system owes the text on its way to the clipboard."""
 
     def test_no_reader_installed(self):
         with only_these_tools():
@@ -81,13 +99,10 @@ class DesktopContract:
                 mock.patch.object(subprocess, "run", side_effect=OSError("nope")):
             self.assertIsNone(paste.read_clipboard())
 
-    # ---- copying ----------------------------------------------------------
+    def test_no_clipboard_tool_installed_names_it(self):
-
-    def test_no_clipboard_tool_installed_says_what_to_install(self):
         with only_these_tools(), self.assertRaises(paste.PasteError) as caught:
             paste.copy("hello")
         self.assertIn(self.here.clipboard, str(caught.exception))
-        self.assertIn(self.here.packages.split(" and ")[0], str(caught.exception))
 
     def test_the_text_goes_in_as_utf8(self):
         with only_these_tools(self.here.clipboard), \
@@ -138,7 +153,15 @@ class DesktopContract:
             paste.copy_bytes(b"\x89PNG\r\n")
         self.assertEqual(run.call_args.kwargs["input"], b"\x89PNG\r\n")
 
-    # ---- pressing the key -------------------------------------------------
+    def test_the_paste_key_it_offers_is_one_it_can_press(self):
+        """Whatever Settings lists, pressing it must not come back unknown."""
+        for shortcut in self.here.shortcuts:
+            with self.subTest(shortcut=shortcut):
+                self.assertTrue(self.pressing(shortcut))
+
+
+class KeyProgramContract(Standing):
+    """The half of it that is another program: ydotool, xdotool."""
 
     def press(self, shortcut, result=None):
         with only_these_tools(self.here.keyboard), \
@@ -148,6 +171,10 @@ class DesktopContract:
             paste.press(shortcut)
         return run.call_args.args[0]
 
+    def pressing(self, shortcut):
+        """The command a shortcut would run, for the contract above."""
+        return self.press(shortcut)
+
     def test_no_keyboard_tool_installed(self):
         with only_these_tools():
             self.assertFalse(paste.paste_ready())
@@ -180,9 +207,11 @@ class DesktopContract:
         self.assertIn(self.here.keyboard, str(caught.exception))
         self.assertIn("no socket", str(caught.exception))
 
+    def test_nothing_named_presses_the_one_this_desktop_pastes_with(self):
+        self.assertEqual(self.press(""), self.press(self.here.shortcuts[0]))
 
-@linux_only
+
-class Wayland(DesktopContract, DikteTest):
+class Wayland(ClipboardContract, KeyProgramContract, DikteTest):
     env: ClassVar[dict] = {"XDG_SESSION_TYPE": "wayland",
                            "WAYLAND_DISPLAY": "wayland-0"}
     here = paste.WAYLAND
@@ -208,8 +237,7 @@ class Wayland(DesktopContract, DikteTest):
         self.assertIn("ydotoold", str(caught.exception))
 
 
-@linux_only
+class X11(ClipboardContract, KeyProgramContract, DikteTest):
-class X11(DesktopContract, DikteTest):
     env: ClassVar[dict] = {"XDG_SESSION_TYPE": "x11", "DISPLAY": ":0"}
     here = paste.X11
 
@@ -232,5 +260,174 @@ class X11(DesktopContract, DikteTest):
         self.assertNotIn("ydotoold", str(caught.exception))
 
 
+class FakeCoreGraphics:
+    """Enough of the two frameworks to watch what a paste does to them.
+
+    The events are numbers standing in for pointers, which is all the code
+    treats them as: it makes them, sets flags on them, posts them, and hands
+    them back.
+    """
+
+    def __init__(self, trusted=True, makes=None):
+        self.trusted = trusted
+        self.makes = makes   # how many it will hand out; None for as many as asked
+        self.made = []       # (keycode, is_down)
+        self.flags = []      # (event, flags)
+        self.posted = []     # (tap, event)
+        self.released = []
+
+    # --- ApplicationServices
+    def AXIsProcessTrusted(self):
+        return self.trusted
+
+    def CGEventCreateKeyboardEvent(self, source, keycode, down):
+        self.made.append((keycode, down))
+        if self.makes is not None and len(self.made) > self.makes:
+            return None
+        return 1000 + len(self.made)
+
+    def CGEventSetFlags(self, event, flags):
+        self.flags.append((event, flags))
+
+    def CGEventPost(self, tap, event):
+        self.posted.append((tap, event))
+
+    # --- CoreFoundation
+    def CFRelease(self, event):
+        self.released.append(event)
+
+
+class MacOS(ClipboardContract, DikteTest):
+    platform = "darwin"
+    here = paste.MACOS
+
+    def setUp(self):
+        super().setUp()
+        self.api = FakeCoreGraphics()
+        self.patch_attr(paste, "_macos_api", lambda: (self.api, self.api))
+        self.patch_attr(paste.time, "sleep", lambda seconds: None)
+        # It opens the settings pane once per run; each test gets its own run.
+        self.patch_attr(paste, "_asked_for_permission", False)
+        self.opened = self.patch_attr(paste.subprocess, "Popen", mock.Mock())
+
+    def pressing(self, shortcut):
+        paste.press(shortcut)
+        return self.api.posted
+
+    def test_the_key_goes_in_by_position_with_the_modifiers_on_it(self):
+        paste.press("cmd+v")
+        self.assertEqual(self.api.made, [(9, True), (9, False)])
+        self.assertEqual([flags for _, flags in self.api.flags],
+                         [paste.MAC_FLAGS["command"]] * 2)
+        self.assertEqual([tap for tap, _ in self.api.posted],
+                         [paste.HID_EVENT_TAP] * 2)
+
+    def test_the_down_is_posted_before_the_up(self):
+        paste.press("cmd+v")
+        self.assertEqual([event for _, event in self.api.posted], [1001, 1002])
+
+    def test_both_events_are_handed_back(self):
+        """CoreGraphics gives out memory that nothing else will free."""
+        paste.press("cmd+v")
+        self.assertEqual(sorted(self.api.released), [1001, 1002])
+
+    def test_several_modifiers_are_one_number(self):
+        paste.press("cmd+shift+v")
+        self.assertEqual(self.api.flags[0][1],
+                         paste.MAC_FLAGS["command"] | paste.MAC_FLAGS["shift"])
+
+    def test_the_names_a_mac_keyboard_uses(self):
+        for name in ("cmd", "command", "meta", "super"):
+            with self.subTest(name=name):
+                self.assertEqual(paste._macos_keys(f"{name}+v"),
+                                 (9, paste.MAC_FLAGS["command"]))
+        self.assertEqual(paste._macos_keys("option+v"), paste._macos_keys("alt+v"))
+        self.assertEqual(paste._macos_keys("control+v"), paste._macos_keys("ctrl+v"))
+
+    def test_case_and_spacing_do_not_matter(self):
+        self.assertEqual(paste._macos_keys(" Cmd + V "), paste._macos_keys("cmd+v"))
+
+    def test_a_key_nobody_mapped_is_refused_before_anything_is_posted(self):
+        with self.assertRaises(paste.PasteError) as caught:
+            paste.press("cmd+f13")
+        self.assertIn("f13", str(caught.exception))
+        self.assertEqual(self.api.posted, [])
+
+    def test_a_modifier_nobody_mapped(self):
+        with self.assertRaises(paste.PasteError) as caught:
+            paste.press("hyper+v")
+        self.assertIn("hyper", str(caught.exception))
+
+    def test_nothing_at_all(self):
+        with self.assertRaises(paste.PasteError):
+            paste.press("+")
+
+    def test_nothing_is_typed_until_macos_says_so(self):
+        self.api.trusted = False
+        with self.assertRaises(paste.PasteError) as caught:
+            paste.press("cmd+v")
+        self.assertIn("Accessibility", str(caught.exception))
+        self.assertEqual(self.api.posted, [])
+
+    def test_the_permission_pane_is_opened_once_and_not_again(self):
+        """It is a window in the user's face, and one paste is every dictation."""
+        self.api.trusted = False
+        for _ in range(3):
+            with self.assertRaises(paste.PasteError):
+                paste.press("cmd+v")
+        self.opened.assert_called_once()
+        self.assertIn("Privacy_Accessibility", self.opened.call_args.args[0][1])
+
+    def test_a_system_that_will_not_open_the_pane_still_says_what_is_wrong(self):
+        self.api.trusted = False
+        self.opened.side_effect = OSError("no open(1) here")
+        with self.assertRaises(paste.PasteError) as caught:
+            paste.press("cmd+v")
+        self.assertIn("Accessibility", str(caught.exception))
+
+    def test_readiness_is_the_permission_rather_than_a_program(self):
+        self.assertTrue(paste.paste_ready())
+        self.api.trusted = False
+        self.assertFalse(paste.paste_ready())
+
+    def test_an_event_that_could_not_be_made_takes_its_pair_with_it(self):
+        self.api.makes = 1            # the second one comes back null
+        with self.assertRaises(paste.PasteError):
+            paste.press("cmd+v")
+        self.assertEqual(self.api.released, [1001])
+        self.assertEqual(self.api.posted, [])
+
+    def test_the_frameworks_not_being_there_is_not_a_crash(self):
+        """Every other system imports this module too, and must survive it."""
+        self.patch_attr(paste, "_macos_api",
+                        mock.Mock(side_effect=paste.PasteError("no such library")))
+        self.assertFalse(paste.paste_ready())
+
+
+class MacClipboardSnapshot(DikteTest):
+    def test_every_native_type_is_restored_and_the_files_are_removed(self):
+        directory = tempfile.mkdtemp(prefix="dikte-test-clipboard-")
+        manifest = '[[{"type":"public.tiff","file":"0-0.bin"}]]'
+        pathlib.Path(directory, "0-0.bin").write_bytes(b"a TIFF")
+        snapshot = paste._MAC_SNAPSHOT(directory, manifest)
+
+        with mock.patch.object(subprocess, "run",
+                               return_value=FakeCompleted()) as run:
+            paste.copy_bytes(snapshot)
+
+        self.assertEqual(run.call_args.kwargs["input"], manifest)
+        self.assertEqual(run.call_args.kwargs["env"]["DIKTE_PASTEBOARD_DIR"],
+                         directory)
+        self.assertFalse(os.path.exists(directory))
+
+    def test_a_failed_snapshot_leaves_no_temporary_directory(self):
+        directory = tempfile.mkdtemp(prefix="dikte-test-clipboard-")
+        with mock.patch.object(paste.tempfile, "mkdtemp", return_value=directory), \
+                mock.patch.object(subprocess, "run",
+                                  return_value=FakeCompleted(stdout=b"not json")):
+            self.assertIsNone(paste._macos_snapshot())
+        self.assertFalse(os.path.exists(directory))
+
+
 if __name__ == "__main__":
     unittest.main()

tests/test_ui.py

@@ -6,7 +6,9 @@ save, so a setting added to one half and not the other is silently reset the
 next time anybody presses Save. That is the failure this catches.
 """
 
+import sys
 import unittest
+from typing import ClassVar
 from unittest import mock
 
 from PyQt6.QtWidgets import QApplication, QMessageBox
@@ -15,6 +17,7 @@ import cleanup
 import config as cfg
 import hotkey
 import overlay as overlay_module
+import paste
 import settings_ui
 from tests.support import DikteTest, only_these_tools
 
@@ -97,10 +100,16 @@ CHANGED = {
 
 
 class Settings(DikteTest):
+    # What a Mac shows instead, where the combination on offer is a different
+    # one. Everything else about the window is the same on both.
+    changed = CHANGED
+    platform = "linux"
+
     def setUp(self):
         super().setUp()
         # No pactl, no model lists over the network, and no modal dialogue
         # waiting for somebody to press OK.
+        self.enterContext(mock.patch.object(sys, "platform", self.platform))
         self.enterContext(only_these_tools())
         self.enterContext(mock.patch.object(QMessageBox, "information"))
         self.enterContext(mock.patch.object(settings_ui.SettingsWindow,
@@ -133,11 +142,11 @@ class Settings(DikteTest):
         self.assertEqual(conf.data, before)
 
     def test_a_setting_of_your_own_survives_the_round_trip(self):
-        self.write_config(CHANGED)
+        self.write_config(self.changed)
         conf = cfg.Config()
         self.window(conf)._save()
         stored = self.read_config_file()
-        for key, value in CHANGED.items():
+        for key, value in self.changed.items():
             with self.subTest(key=key):
                 self.assertEqual(stored[key], value)
 
@@ -304,6 +313,34 @@ class Settings(DikteTest):
         self.assertFalse(window.file_stop.isEnabled())
 
 
+class MacSettings(Settings):
+    """The same window and the same round trip, standing on a Mac.
+
+    Nothing here is about macOS: it is the rest of the window, checked on the
+    platform where three of its widgets are gone and one offers other keys.
+    """
+
+    platform = "darwin"
+    changed: ClassVar[dict] = {**CHANGED, "paste_shortcut": "cmd+shift+v"}
+
+    def test_there_is_no_install_button_where_nothing_is_installed(self):
+        window = self.window(cfg.Config())
+        labels = [button.text() for button in
+                  window.findChildren(settings_ui.QPushButton)]
+        self.assertFalse([text for text in labels if "shortcut" in text.lower()])
+
+    def test_the_listener_is_not_offered_as_a_choice(self):
+        """It is the whole mechanism there; turning it off would leave nothing."""
+        window = self.window(cfg.Config())
+        self.assertFalse(window.evdev_enabled.isVisible())
+
+    def test_the_paste_keys_on_offer_are_the_ones_a_mac_uses(self):
+        window = self.window(cfg.Config())
+        offered = [window.paste_shortcut.itemText(index)
+                   for index in range(window.paste_shortcut.count())]
+        self.assertEqual(offered, paste.MACOS.shortcuts)
+
+
 class Overlay(DikteTest):
     def overlay(self, **kwargs):
         widget = overlay_module.Overlay(**kwargs)

tests/test_worker.py

@@ -32,7 +32,7 @@ class Chain(DikteTest):
                   transcript="uh, book it for Thursday",
                   cleaned="Book it for Thursday.",
                   cleanup_error=None, answer=("Booked.", ""), rms=None,
-                  clipboard=b"what was there before"):
+                  clipboard=b"what was there before", paste_error=None):
         pipeline = worker.Pipeline(self.conf)
         done, failures, stages, cancels = [], [], [], []
         pipeline.finished.connect(lambda *args: done.append(args))
@@ -52,10 +52,13 @@ class Chain(DikteTest):
                 mock.patch.object(paste, "copy") as copy, \
                 mock.patch.object(paste, "copy_bytes") as copy_bytes, \
                 mock.patch.object(paste, "press") as press, \
-                mock.patch.object(paste, "read_clipboard", return_value=clipboard), \
+                mock.patch.object(paste, "read_clipboard",
+                                  return_value=clipboard) as read_clipboard, \
                 mock.patch.object(worker.time, "sleep", lambda seconds: None):
+            press.side_effect = paste_error
             calls = {"transcribe": tr, "cleanup": cleanup, "ask": ask_call,
-                     "copy": copy, "copy_bytes": copy_bytes, "press": press}
+                     "copy": copy, "copy_bytes": copy_bytes, "press": press,
+                     "read_clipboard": read_clipboard}
             pipeline._work(self.wav, duration,
                            self.rms if rms is None else rms, ask, paste_override)
         return {"done": done, "failures": failures, "stages": stages,
@@ -83,9 +86,11 @@ class Chain(DikteTest):
 
     def test_auto_paste_switched_off_only_copies(self):
         self.conf["auto_paste"] = False
+        self.conf["restore_clipboard"] = True
         run = self.run_chain()
         run["copy"].assert_called_once()
         run["press"].assert_not_called()
+        run["read_clipboard"].assert_not_called()
 
     def test_a_run_asked_for_from_a_terminal_pastes_nowhere(self):
         """The text comes back down the socket; the focused window is nobody's."""
@@ -103,6 +108,12 @@ class Chain(DikteTest):
         run = self.run_chain()
         run["copy_bytes"].assert_not_called()
 
+    def test_the_clipboard_is_put_back_when_the_keypress_fails(self):
+        self.conf["restore_clipboard"] = True
+        run = self.run_chain(paste_error=paste.PasteError("not trusted"))
+        self.assertIn("not trusted", run["failures"][0])
+        run["copy_bytes"].assert_called_once_with(b"what was there before")
+
     def test_the_transcription_is_told_the_language_and_the_glossary(self):
         self.conf["language"] = "tr"
         self.conf["transcribe_prompt"] = "Paraşüt"

worker.py

@@ -138,13 +138,18 @@ class Pipeline(QObject):
                 wants_paste = paste_override
 
             with _paste_lock:
-                previous = paste.read_clipboard() if conf["restore_clipboard"] else None
+                previous = (paste.read_clipboard()
-                paste.copy(text)
+                            if conf["restore_clipboard"] and wants_paste else None)
-
+                try:
-                if wants_paste:
+                    paste.copy(text)
-                    self.stage.emit(t("Pasting…"))
+                    if wants_paste:
-                    paste.press(conf["paste_shortcut"])
+                        self.stage.emit(t("Pasting…"))
+                        paste.press(conf["paste_shortcut"])
+                finally:
                     if previous is not None:
+                        # Let the focused application consume the temporary
+                        # transcription before putting every old clipboard type
+                        # back.  This also runs when key injection fails.
                         time.sleep(0.35)
                         paste.copy_bytes(previous)