diff --git a/builddefs/generic_features.mk b/builddefs/generic_features.mk
index 5a1ef5c6f0..4e058dcd26 100644
--- a/builddefs/generic_features.mk
+++ b/builddefs/generic_features.mk
@@ -32,6 +32,7 @@ GENERIC_FEATURES = \
KEY_OVERRIDE \
LEADER \
PROGRAMMABLE_BUTTON \
+ REPEAT_KEY \
SECURE \
SPACE_CADET \
SWAP_HANDS \
diff --git a/builddefs/show_options.mk b/builddefs/show_options.mk
index 9723b45438..8bcc02083b 100644
--- a/builddefs/show_options.mk
+++ b/builddefs/show_options.mk
@@ -85,7 +85,8 @@ OTHER_OPTION_NAMES = \
SECURE_ENABLE \
CAPS_WORD_ENABLE \
AUTOCORRECT_ENABLE \
- TRI_LAYER_ENABLE
+ TRI_LAYER_ENABLE \
+ REPEAT_KEY_ENABLE
define NAME_ECHO
@printf " %-30s = %-16s # %s\\n" "$1" "$($1)" "$(origin $1)"
diff --git a/data/constants/keycodes/keycodes_0.0.3.hjson b/data/constants/keycodes/keycodes_0.0.3.hjson
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/data/constants/keycodes/keycodes_0.0.3_quantum.hjson b/data/constants/keycodes/keycodes_0.0.3_quantum.hjson
new file mode 100644
index 0000000000..23a3c9b06d
--- /dev/null
+++ b/data/constants/keycodes/keycodes_0.0.3_quantum.hjson
@@ -0,0 +1,18 @@
+{
+ "keycodes": {
+ "0x7C79": {
+ "group": "quantum",
+ "key": "QK_REPEAT_KEY",
+ "aliases": [
+ "QK_REP"
+ ]
+ },
+ "0x7C7A": {
+ "group": "quantum",
+ "key": "QK_ALT_REPEAT_KEY",
+ "aliases": [
+ "QK_AREP"
+ ]
+ }
+ }
+}
diff --git a/docs/_summary.md b/docs/_summary.md
index ce579cb071..3d9bde6b17 100644
--- a/docs/_summary.md
+++ b/docs/_summary.md
@@ -70,6 +70,7 @@
* [Macros](feature_macros.md)
* [Mouse Keys](feature_mouse_keys.md)
* [Programmable Button](feature_programmable_button.md)
+ * [Repeat Key](feature_repeat_key.md)
* [Space Cadet Shift](feature_space_cadet.md)
* [US ANSI Shifted Keys](keycodes_us_ansi_shifted.md)
diff --git a/docs/feature_repeat_key.md b/docs/feature_repeat_key.md
new file mode 100644
index 0000000000..6fa8a724ef
--- /dev/null
+++ b/docs/feature_repeat_key.md
@@ -0,0 +1,457 @@
+# Repeat Key
+
+The Repeat Key performs the action of the last pressed key. Tapping the Repeat
+Key after tapping the Z key types another "`z`." This is useful for
+typing doubled letters, like the `z` in "`dazzle`": a double tap on Z
+can instead be a roll from Z to Repeat, which is
+potentially faster and more comfortable. The Repeat Key is also useful for
+hotkeys, like repeating Ctrl + Shift + Right Arrow to select by word.
+
+Repeat Key remembers mods that were active with the last key press. These mods
+are combined with any additional mods while pressing the Repeat Key. If the last
+press key was Ctrl + Z, then Shift +
+Repeat performs Ctrl + Shift + `Z`.
+
+## How do I enable Repeat Key
+
+In your `rules.mk`, add:
+
+```make
+REPEAT_KEY_ENABLE = yes
+```
+
+Then pick a key in your keymap and assign it the keycode `QK_REPEAT_KEY` (short
+alias `QK_REP`). Optionally, use the keycode `QK_ALT_REPEAT_KEY` (short alias
+`QK_AREP`) on another key.
+
+## Keycodes
+
+|Keycode |Aliases |Description |
+|-----------------------|---------|-------------------------------------|
+|`QK_REPEAT_KEY` |`QK_REP` |Repeat the last pressed key |
+|`QK_ALT_REPEAT_KEY` |`QK_AREP`|Perform alternate of the last key |
+
+## Alternate Repeating
+
+The Alternate Repeat Key performs the "alternate" action of the last pressed key
+if it is defined. By default, Alternate Repeat is defined for navigation keys to
+act in the reverse direction. When the last key is the common "select by word"
+hotkey Ctrl + Shift + Right Arrow, the Alternate Repeat Key performs Ctrl +
+Shift + Left Arrow, which together with the Repeat Key enables convenient
+selection by words in either direction.
+
+Alternate Repeat is enabled with the Repeat Key by default. Optionally, to
+reduce firmware size, Alternate Repeat may be disabled by adding in config.h:
+
+```c
+#define NO_ALT_REPEAT_KEY
+```
+
+The following alternate keys are defined by default. See
+`get_alt_repeat_key_keycode_user()` below for how to change or add to these
+definitions. Where it makes sense, these definitions also include combinations
+with mods, like Ctrl + Left ↔ Ctrl + Right Arrow.
+
+**Navigation**
+
+|Keycodes |Description |
+|-----------------------------------|-----------------------------------|
+|`KC_LEFT` ↔ `KC_RGHT` | Left ↔ Right Arrow |
+|`KC_UP` ↔ `KC_DOWN` | Up ↔ Down Arrow |
+|`KC_HOME` ↔ `KC_END` | Home ↔ End |
+|`KC_PGUP` ↔ `KC_PGDN` | Page Up ↔ Page Down |
+|`KC_MS_L` ↔ `KC_MS_R` | Mouse Cursor Left ↔ Right |
+|`KC_MS_U` ↔ `KC_MS_D` | Mouse Cursor Up ↔ Down |
+|`KC_WH_L` ↔ `KC_WH_R` | Mouse Wheel Left ↔ Right |
+|`KC_WH_U` ↔ `KC_WH_D` | Mouse Wheel Up ↔ Down |
+
+**Misc**
+
+|Keycodes |Description |
+|-----------------------------------|-----------------------------------|
+|`KC_BSPC` ↔ `KC_DEL` | Backspace ↔ Delete |
+|`KC_LBRC` ↔ `KC_RBRC` | `[` ↔ `]` |
+|`KC_LCBR` ↔ `KC_RCBR` | `{` ↔ `}` |
+
+**Media**
+
+|Keycodes |Description |
+|-----------------------------------|-----------------------------------|
+|`KC_WBAK` ↔ `KC_WFWD` | Browser Back ↔ Forward |
+|`KC_MNXT` ↔ `KC_MPRV` | Next ↔ Previous Media Track |
+|`KC_MFFD` ↔ `KC_MRWD` | Fast Forward ↔ Rewind Media |
+|`KC_VOLU` ↔ `KC_VOLD` | Volume Up ↔ Down |
+|`KC_BRIU` ↔ `KC_BRID` | Brightness Up ↔ Down |
+
+**Hotkeys in Vim, Emacs, and other programs**
+
+|Keycodes |Description |
+|-----------------------------------|-----------------------------------|
+|mod + `KC_F` ↔ mod + `KC_B` | Forward ↔ Backward |
+|mod + `KC_D` ↔ mod + `KC_U` | Down ↔ Up |
+|mod + `KC_N` ↔ mod + `KC_P` | Next ↔ Previous |
+|mod + `KC_A` ↔ mod + `KC_E` | Home ↔ End |
+|mod + `KC_O` ↔ mod + `KC_I` | Vim jump list Older ↔ Newer |
+|`KC_J` ↔ `KC_K` | Down ↔ Up |
+|`KC_H` ↔ `KC_L` | Left ↔ Right |
+|`KC_W` ↔ `KC_B` | Forward ↔ Backward by Word |
+
+(where above, "mod" is Ctrl, Alt, or GUI)
+
+
+## Defining alternate keys
+
+Use the `get_alt_repeat_key_keycode_user()` callback to define the "alternate"
+for additional keys or override the default definitions. For example, to define
+Ctrl + Y as the alternate of Ctrl + Z, and vice versa, add the following in
+keymap.c:
+
+```c
+uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods) {
+ if ((mods & MOD_MASK_CTRL)) { // Was Ctrl held?
+ switch (keycode) {
+ case KC_Y: return C(KC_Z); // Ctrl + Y reverses to Ctrl + Z.
+ case KC_Z: return C(KC_Y); // Ctrl + Z reverses to Ctrl + Y.
+ }
+ }
+
+ return KC_TRNS; // Defer to default definitions.
+}
+```
+
+The `keycode` and `mods` args are the keycode and mods that were active with the
+last pressed key. The meaning of the return value from this function is:
+
+* `KC_NO` – do nothing (any predefined alternate key is not used);
+* `KC_TRNS` – use the default alternate key if it exists;
+* anything else – use the specified keycode. Any keycode may be returned
+ as an alternate key, including custom keycodes.
+
+Another example, defining Shift + Tab as the alternate of Tab, and vice versa:
+
+```c
+uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods) {
+ bool shifted = (mods & MOD_MASK_SHIFT); // Was Shift held?
+ switch (keycode) {
+ case KC_TAB:
+ if (shifted) { // If the last key was Shift + Tab,
+ return KC_TAB; // ... the reverse is Tab.
+ } else { // Otherwise, the last key was Tab,
+ return S(KC_TAB); // ... and the reverse is Shift + Tab.
+ }
+ }
+
+ return KC_TRNS;
+}
+```
+
+#### Eliminating SFBs
+
+Alternate Repeat can be configured more generally to perform an action that
+"complements" the last key. Alternate Repeat is not limited to reverse
+repeating, and it need not be symmetric. You can use it to eliminate cases of
+same-finger bigrams in your layout, that is, pairs of letters typed by the same
+finger. The following addresses the top 5 same-finger bigrams in English on
+QWERTY, so that for instance "`ed`" may be typed as E, Alt
+Repeat.
+
+```c
+uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods) {
+ switch (keycode) {
+ case KC_E: return KC_D; // For "ED" bigram.
+ case KC_D: return KC_E; // For "DE" bigram.
+ case KC_C: return KC_E; // For "CE" bigram.
+ case KC_L: return KC_O; // For "LO" bigram.
+ case KC_U: return KC_N; // For "UN" bigram.
+ }
+
+ return KC_TRNS;
+}
+```
+
+#### Typing shortcuts
+
+A useful possibility is having Alternate Repeat press [a
+macro](feature_macros.md). This way macros can be used without having to
+dedicate keys to them. The following defines a couple shortcuts.
+
+* Typing K, Alt Repeat produces "`keyboard`," with the
+ initial "`k`" typed as usual and the "`eybord`" produced by the macro.
+* Typing ., Alt Repeat produces "`../`," handy for "up
+ directory" on the shell. Similary, . types the initial "`.`" and
+ "`./`" is produced by the macro.
+
+```c
+enum custom_keycodes {
+ M_KEYBOARD = SAFE_RANGE,
+ M_UPDIR,
+ // Other custom keys...
+};
+
+uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods) {
+ switch (keycode) {
+ case KC_K: return M_KEYBOARD;
+ case KC_DOT: return M_UPDIR;
+ }
+
+ return KC_TRNS;
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t* record) {
+ switch (keycode) {
+ case M_KEYBOARD: SEND_STRING(/*k*/"eyboard"); break;
+ case M_UPDIR: SEND_STRING(/*.*/"./"); break;
+ }
+ return true;
+}
+```
+
+## Ignoring certain keys and mods
+
+In tracking what is "the last key" to be repeated or alternate repeated,
+modifier and layer switch keys are always ignored. This makes it possible to set
+some mods and change layers between pressing a key and repeating it. By default,
+all other (non-modifier, non-layer switch) keys are remembered so that they are
+eligible for repeating. To configure additional keys to be ignored, define
+`remember_last_key_user()` in your keymap.c.
+
+#### Ignoring a key
+
+The following ignores the Backspace key:
+
+```c
+bool remember_last_key_user(uint16_t keycode, keyrecord_t* record,
+ uint8_t* remembered_mods) {
+ switch (keycode) {
+ case KC_BSPC:
+ return false; // Ignore backspace.
+ }
+
+ return true; // Other keys can be repeated.
+}
+```
+
+Then for instance, the Repeat key in Left Arrow,
+Backspace, Repeat sends Left Arrow again instead of
+repeating Backspace.
+
+The `remember_last_key_user()` callback is called on every key press excluding
+modifiers and layer switches. Returning true indicates the key is remembered,
+while false means it is ignored.
+
+#### Filtering remembered mods
+
+The `remembered_mods` arg represents the mods that will be remembered with
+this key. It can be modified to forget certain mods. This may be
+useful to forget capitalization when repeating shifted letters, so that "Aaron"
+does not becom "AAron":
+
+```c
+bool remember_last_key_user(uint16_t keycode, keyrecord_t* record,
+ uint8_t* remembered_mods) {
+ // Forget Shift on letter keys when Shift or AltGr are the only mods.
+ switch (keycode) {
+ case KC_A ... KC_Z:
+ if ((*remembered_mods & ~(MOD_MASK_SHIFT | MOD_BIT(KC_RALT))) == 0) {
+ *remembered_mods &= ~MOD_MASK_SHIFT;
+ }
+ break;
+ }
+
+ return true;
+}
+```
+
+#### Further conditions
+
+Besides checking the keycode, this callback could also make conditions based on
+the current layer state (with `IS_LAYER_ON(layer)`) or mods (`get_mods()`). For
+example, the following ignores keys on layer 2 as well as key combinations
+involving GUI:
+
+```c
+bool remember_last_key_user(uint16_t keycode, keyrecord_t* record,
+ uint8_t* remembered_mods) {
+ if (IS_LAYER_ON(2) || (get_mods() & MOD_MASK_GUI)) {
+ return false; // Ignore layer 2 keys and GUI chords.
+ }
+
+ return true; // Other keys can be repeated.
+}
+```
+
+?> See [Layer Functions](feature_layers.md#functions) and [Checking Modifier
+State](feature_advanced_keycodes.md#checking-modifier-state) for further
+details.
+
+
+## Handle how a key is repeated
+
+By default, pressing the Repeat Key will simply behave as if the last key
+were pressed again. This also works with macro keys with custom handlers,
+invoking the macro again. In case fine-tuning is needed for sensible repetition,
+you can handle how a key is repeated with `get_repeat_key_count()` within
+`process_record_user()`.
+
+The `get_repeat_key_count()` function returns a signed count of times the key
+has been repeated or alternate repeated. When a key is pressed as usual,
+`get_repeat_key_count()` is 0. On the first repeat, it is 1, then the second
+repeat, 2, and so on. Negative counts are used similarly for alternate
+repeating. For instance supposing `MY_MACRO` is a custom keycode used in the
+layout:
+
+```c
+bool process_record_user(uint16_t keycode, keyrecord_t* record) {
+ switch (keycode) {
+ case MY_MACRO:
+ if (get_repeat_key_count() > 0) {
+ // MY_MACRO is being repeated!
+ if (record->event.pressed) {
+ SEND_STRING("repeat!");
+ }
+ } else {
+ // MY_MACRO is being used normally.
+ if (record->event.pressed) {
+ SEND_STRING("macro");
+ }
+ }
+ return false;
+
+ // Other macros...
+ }
+ return true;
+}
+```
+
+## Handle how a key is alternate repeated
+
+Pressing the Alternate Repeat Key behaves as if the "alternate" of the last
+pressed key were pressed, if an alternate is defined. To define how a particular
+key is alternate repeated, use the `get_alt_repeat_key_keycode_user()` callback
+as described above to define which keycode to use as its alternate. Beyond this,
+`get_repeat_key_count()` may be used in custom handlers to fine-tune behavior
+when alternate repeating.
+
+The following example defines `MY_MACRO` as its own alternate, and specially
+handles repeating and alternate repeating:
+
+```c
+uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods) {
+ switch (keycode) {
+ case MY_MACRO: return MY_MACRO; // MY_MACRO is its own alternate.
+ }
+ return KC_TRNS;
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t* record) {
+ switch (keycode) {
+ case MY_MACRO:
+ if (get_repeat_key_count() > 0) { // Repeating.
+ if (record->event.pressed) {
+ SEND_STRING("repeat!");
+ }
+ } else if (get_repeat_key_count() < 0) { // Alternate repeating.
+ if (record->event.pressed) {
+ SEND_STRING("alt repeat!");
+ }
+ } else { // Used normally.
+ if (record->event.pressed) {
+ SEND_STRING("macro");
+ }
+ }
+ return false;
+
+ // Other macros...
+ }
+ return true;
+}
+```
+
+
+## Functions
+
+| Function | Description |
+|--------------------------------|------------------------------------------------------------------------|
+| `get_last_keycode()` | The last key's keycode, the key to be repeated. |
+| `get_last_mods()` | Mods to apply when repeating. |
+| `set_last_keycode(kc)` | Set the keycode to be repeated. |
+| `set_last_mods(mods)` | Set the mods to apply when repeating. |
+| `get_repeat_key_count()` | Signed count of times the key has been repeated or alternate repeated. |
+| `get_alt_repeat_key_keycode()` | Keycode to be used for alternate repeating. |
+
+
+## Additional "Alternate" keys
+
+By leveraging `get_last_keycode()` in macros, it is possible to define
+additional, distinct "Alternate Repeat"-like keys. The following defines two
+keys `ALTREP2` and `ALTREP3` and implements ten shortcuts with them for common
+English 5-gram letter patterns, taking inspiration from
+[Stenotype](feature_stenography.md):
+
+
+| Typing | Produces | Typing | Produces |
+|----------------------------------|----------|----------------------------------|----------|
+| A, ALTREP2 | `ation` | A, ALTREP3 | `about` |
+| I, ALTREP2 | `ition` | I, ALTREP3 | `inter` |
+| S, ALTREP2 | `ssion` | S, ALTREP3 | `state` |
+| T, ALTREP2 | `their` | T, ALTREP3 | `there` |
+| W, ALTREP2 | `which` | W, ALTREP3 | `would` |
+
+```c
+enum custom_keycodes {
+ ALTREP2 = SAFE_RANGE,
+ ALTREP3,
+};
+
+// Use ALTREP2 and ALTREP3 in your layout...
+
+bool remember_last_key_user(uint16_t keycode, keyrecord_t* record,
+ uint8_t* remembered_mods) {
+ switch (keycode) {
+ case ALTREP2:
+ case ALTREP3:
+ return false; // Ignore ALTREP keys.
+ }
+
+ return true; // Other keys can be repeated.
+}
+
+static void process_altrep2(uint16_t keycode, uint8_t mods) {
+ switch (keycode) {
+ case KC_A: SEND_STRING(/*a*/"tion"); break;
+ case KC_I: SEND_STRING(/*i*/"tion"); break;
+ case KC_S: SEND_STRING(/*s*/"sion"); break;
+ case KC_T: SEND_STRING(/*t*/"heir"); break;
+ case KC_W: SEND_STRING(/*w*/"hich"); break;
+ }
+}
+
+static void process_altrep3(uint16_t keycode, uint8_t mods) {
+ switch (keycode) {
+ case KC_A: SEND_STRING(/*a*/"bout"); break;
+ case KC_I: SEND_STRING(/*i*/"nter"); break;
+ case KC_S: SEND_STRING(/*s*/"tate"); break;
+ case KC_T: SEND_STRING(/*t*/"here"); break;
+ case KC_W: SEND_STRING(/*w*/"ould"); break;
+ }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t* record) {
+ switch (keycode) {
+ case ALTREP2:
+ if (record->event.pressed) {
+ process_altrep2(get_last_keycode(), get_last_mods());
+ }
+ return false;
+
+ case ALTREP3:
+ if (record->event.pressed) {
+ process_altrep3(get_last_keycode(), get_last_mods());
+ }
+ return false;
+ }
+
+ return true;
+}
+```
+
diff --git a/docs/ja/_summary.md b/docs/ja/_summary.md
index e49853bfd4..4d6f2348d5 100644
--- a/docs/ja/_summary.md
+++ b/docs/ja/_summary.md
@@ -68,6 +68,7 @@
* [モッドタップ](ja/mod_tap.md)
* [マクロ](ja/feature_macros.md)
* [マウスキー](ja/feature_mouse_keys.md)
+ * [Repeat Key](ja/feature_repeat_key.md)
* [Space Cadet Shift](ja/feature_space_cadet.md)
* [US ANSI シフトキー](ja/keycodes_us_ansi_shifted.md)
diff --git a/docs/keycodes.md b/docs/keycodes.md
index cad050ccf7..e5b6246af7 100644
--- a/docs/keycodes.md
+++ b/docs/keycodes.md
@@ -803,6 +803,15 @@ See also: [Programmable Button](feature_programmable_button.md)
|`QK_PROGRAMMABLE_BUTTON_31`|`PB_31`|Programmable button 31|
|`QK_PROGRAMMABLE_BUTTON_32`|`PB_32`|Programmable button 32|
+## Repeat Key :id=repeat-key
+
+See also: [Repeat Key](feature_repeat_key.md)
+
+|Keycode |Aliases |Description |
+|-----------------------|---------|-------------------------------------|
+|`QK_REPEAT_KEY` |`QK_REP` |Repeat the last pressed key |
+|`QK_ALT_REPEAT_KEY` |`QK_AREP`|Perform alternate of the last key |
+
## Space Cadet :id=space-cadet
See also: [Space Cadet](feature_space_cadet.md)
diff --git a/docs/zh-cn/_summary.md b/docs/zh-cn/_summary.md
index b8c26ac275..0fc92e33d3 100644
--- a/docs/zh-cn/_summary.md
+++ b/docs/zh-cn/_summary.md
@@ -73,6 +73,7 @@
* [Mod-Tap](zh-cn/mod_tap.md)
* [宏](zh-cn/feature_macros.md)
* [鼠标键](zh-cn/feature_mouse_keys.md)
+ * [Repeat Key](zh-cn/feature_repeat_key.md)
* [Space Cadet Shift](zh-cn/feature_space_cadet.md)
* [US ANSI上档键值](zh-cn/keycodes_us_ansi_shifted.md)
diff --git a/quantum/action.c b/quantum/action.c
index 59bfefc495..a45e70c557 100644
--- a/quantum/action.c
+++ b/quantum/action.c
@@ -285,7 +285,7 @@ void process_record(keyrecord_t *record) {
}
void process_record_handler(keyrecord_t *record) {
-#ifdef COMBO_ENABLE
+#if defined(COMBO_ENABLE) || defined(REPEAT_KEY_ENABLE)
action_t action;
if (record->keycode) {
action = action_for_keycode(record->keycode);
@@ -1109,7 +1109,7 @@ bool is_tap_record(keyrecord_t *record) {
return false;
}
-#ifdef COMBO_ENABLE
+#if defined(COMBO_ENABLE) || defined(REPEAT_KEY_ENABLE)
action_t action;
if (record->keycode) {
action = action_for_keycode(record->keycode);
diff --git a/quantum/action.h b/quantum/action.h
index 2a2c294c5a..d5b15c6f17 100644
--- a/quantum/action.h
+++ b/quantum/action.h
@@ -50,7 +50,7 @@ typedef struct {
#ifndef NO_ACTION_TAPPING
tap_t tap;
#endif
-#ifdef COMBO_ENABLE
+#if defined(COMBO_ENABLE) || defined(REPEAT_KEY_ENABLE)
uint16_t keycode;
#endif
} keyrecord_t;
diff --git a/quantum/keycodes.h b/quantum/keycodes.h
index 34b13c29af..bbf10da36d 100644
--- a/quantum/keycodes.h
+++ b/quantum/keycodes.h
@@ -721,6 +721,8 @@ enum qk_keycode_defines {
QK_AUTOCORRECT_TOGGLE = 0x7C76,
QK_TRI_LAYER_LOWER = 0x7C77,
QK_TRI_LAYER_UPPER = 0x7C78,
+ QK_REPEAT_KEY = 0x7C79,
+ QK_ALT_REPEAT_KEY = 0x7C7A,
QK_KB_0 = 0x7E00,
QK_KB_1 = 0x7E01,
QK_KB_2 = 0x7E02,
@@ -1362,6 +1364,8 @@ enum qk_keycode_defines {
AC_TOGG = QK_AUTOCORRECT_TOGGLE,
TL_LOWR = QK_TRI_LAYER_LOWER,
TL_UPPR = QK_TRI_LAYER_UPPER,
+ QK_REP = QK_REPEAT_KEY,
+ QK_AREP = QK_ALT_REPEAT_KEY,
};
// Range Helpers
@@ -1413,6 +1417,6 @@ enum qk_keycode_defines {
#define IS_MACRO_KEYCODE(code) ((code) >= QK_MACRO_0 && (code) <= QK_MACRO_31)
#define IS_BACKLIGHT_KEYCODE(code) ((code) >= QK_BACKLIGHT_ON && (code) <= QK_BACKLIGHT_TOGGLE_BREATHING)
#define IS_RGB_KEYCODE(code) ((code) >= RGB_TOG && (code) <= RGB_MODE_TWINKLE)
-#define IS_QUANTUM_KEYCODE(code) ((code) >= QK_BOOTLOADER && (code) <= QK_TRI_LAYER_UPPER)
+#define IS_QUANTUM_KEYCODE(code) ((code) >= QK_BOOTLOADER && (code) <= QK_ALT_REPEAT_KEY)
#define IS_KB_KEYCODE(code) ((code) >= QK_KB_0 && (code) <= QK_KB_31)
#define IS_USER_KEYCODE(code) ((code) >= QK_USER_0 && (code) <= QK_USER_31)
diff --git a/quantum/process_keycode/process_repeat_key.c b/quantum/process_keycode/process_repeat_key.c
new file mode 100644
index 0000000000..f819aa226e
--- /dev/null
+++ b/quantum/process_keycode/process_repeat_key.c
@@ -0,0 +1,109 @@
+// Copyright 2022-2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "process_repeat_key.h"
+
+// Default implementation of remember_last_key_user().
+__attribute__((weak)) bool remember_last_key_user(uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ return true;
+}
+
+static bool remember_last_key(uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ switch (keycode) {
+ // Ignore MO, TO, TG, TT, and TL layer switch keys.
+ case QK_MOMENTARY ... QK_MOMENTARY_MAX:
+ case QK_TO ... QK_TO_MAX:
+ case QK_TOGGLE_LAYER ... QK_TOGGLE_LAYER_MAX:
+ case QK_LAYER_TAP_TOGGLE ... QK_LAYER_TAP_TOGGLE_MAX:
+ // Ignore mod keys.
+ case KC_LCTL ... KC_RGUI:
+ case KC_HYPR:
+ case KC_MEH:
+#ifndef NO_ACTION_ONESHOT // Ignore one-shot keys.
+ case QK_ONE_SHOT_LAYER ... QK_ONE_SHOT_LAYER_MAX:
+ case QK_ONE_SHOT_MOD ... QK_ONE_SHOT_MOD_MAX:
+#endif // NO_ACTION_ONESHOT
+#ifdef TRI_LAYER_ENABLE // Ignore Tri Layer keys.
+ case QK_TRI_LAYER_LOWER:
+ case QK_TRI_LAYER_UPPER:
+#endif // TRI_LAYER_ENABLE
+ return false;
+
+ // Ignore hold events on tap-hold keys.
+#ifndef NO_ACTION_TAPPING
+ case QK_MOD_TAP ... QK_MOD_TAP_MAX:
+# ifndef NO_ACTION_LAYER
+ case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:
+# endif // NO_ACTION_LAYER
+ if (record->tap.count == 0) {
+ return false;
+ }
+ break;
+#endif // NO_ACTION_TAPPING
+
+#ifdef SWAP_HANDS_ENABLE
+ case QK_SWAP_HANDS ... QK_SWAP_HANDS_MAX:
+ if (IS_SWAP_HANDS_KEYCODE(keycode) || record->tap.count == 0) {
+ return false;
+ }
+ break;
+#endif // SWAP_HANDS_ENABLE
+
+ case QK_REPEAT_KEY:
+#ifndef NO_ALT_REPEAT_KEY
+ case QK_ALT_REPEAT_KEY:
+#endif // NO_ALT_REPEAT_KEY
+ return false;
+ }
+
+ return remember_last_key_user(keycode, record, remembered_mods);
+}
+
+bool process_last_key(uint16_t keycode, keyrecord_t* record) {
+ if (get_repeat_key_count()) {
+ return true;
+ }
+
+ if (record->event.pressed) {
+ uint8_t remembered_mods = get_mods() | get_weak_mods();
+#ifndef NO_ACTION_ONESHOT
+ remembered_mods |= get_oneshot_mods();
+#endif // NO_ACTION_ONESHOT
+
+ if (remember_last_key(keycode, record, &remembered_mods)) {
+ set_last_record(keycode, record);
+ set_last_mods(remembered_mods);
+ }
+ }
+
+ return true;
+}
+
+bool process_repeat_key(uint16_t keycode, keyrecord_t* record) {
+ if (get_repeat_key_count()) {
+ return true;
+ }
+
+ if (keycode == QK_REPEAT_KEY) {
+ repeat_key_invoke(&record->event);
+ return false;
+#ifndef NO_ALT_REPEAT_KEY
+ } else if (keycode == QK_ALT_REPEAT_KEY) {
+ alt_repeat_key_invoke(&record->event);
+ return false;
+#endif // NO_ALT_REPEAT_KEY
+ }
+
+ return true;
+}
diff --git a/quantum/process_keycode/process_repeat_key.h b/quantum/process_keycode/process_repeat_key.h
new file mode 100644
index 0000000000..eddc50f254
--- /dev/null
+++ b/quantum/process_keycode/process_repeat_key.h
@@ -0,0 +1,62 @@
+// Copyright 2022-2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "quantum.h"
+
+/**
+ * @brief Process handler for remembering the last key.
+ *
+ * @param keycode Keycode registered by matrix press, per keymap
+ * @param record keyrecord_t structure
+ * @return true Continue processing keycodes, and send to host
+ * @return false Stop processing keycodes, and don't send to host
+ */
+bool process_last_key(uint16_t keycode, keyrecord_t* record);
+
+/**
+ * @brief Optional callback defining which keys are remembered.
+ *
+ * @param keycode Keycode that was just pressed
+ * @param record keyrecord_t structure
+ * @param remembered_mods Mods that will be remembered with this key
+ * @return true Key is remembered
+ * @return false Key is ignored
+ *
+ * Modifier and layer switch keys are always ignored. For all other keys, this
+ * callback is called on every key press. Returning true means that the key is
+ * remembered, false means it is ignored. By default, all non-modifier,
+ * non-layer switch keys are remembered.
+ *
+ * The `remembered_mods` arg represents the mods that will be remembered with
+ * this key. It can be modified to forget certain mods, for instance to forget
+ * capitalization when repeating shifted letters:
+ *
+ * // Forget Shift on letter keys.
+ * if (KC_A <= keycode && keycode <= KC_Z && (*remembered_mods & ~MOD_MASK_SHIFT) == 0) {
+ * *remembered_mods = 0;
+ * }
+ */
+bool remember_last_key_user(uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods);
+
+/**
+ * @brief Process handler for Repeat Key feature.
+ *
+ * @param keycode Keycode registered by matrix press, per keymap
+ * @param record keyrecord_t structure
+ * @return true Continue processing keycodes, and send to host
+ * @return false Stop processing keycodes, and don't send to host
+ */
+bool process_repeat_key(uint16_t keycode, keyrecord_t* record);
diff --git a/quantum/quantum.c b/quantum/quantum.c
index fdc24fa2d0..091cf298f7 100644
--- a/quantum/quantum.c
+++ b/quantum/quantum.c
@@ -176,7 +176,7 @@ void soft_reset_keyboard(void) {
/* Convert record into usable keycode via the contained event. */
uint16_t get_record_keycode(keyrecord_t *record, bool update_layer_cache) {
-#ifdef COMBO_ENABLE
+#if defined(COMBO_ENABLE) || defined(REPEAT_KEY_ENABLE)
if (record->keycode) {
return record->keycode;
}
@@ -273,6 +273,9 @@ bool process_record_quantum(keyrecord_t *record) {
// Must run asap to ensure all keypresses are recorded.
process_dynamic_macro(keycode, record) &&
#endif
+#ifdef REPEAT_KEY_ENABLE
+ process_last_key(keycode, record) && process_repeat_key(keycode, record) &&
+#endif
#if defined(AUDIO_ENABLE) && defined(AUDIO_CLICKY)
process_clicky(keycode, record) &&
#endif
diff --git a/quantum/quantum.h b/quantum/quantum.h
index fec92a5244..31a1a63a7a 100644
--- a/quantum/quantum.h
+++ b/quantum/quantum.h
@@ -251,6 +251,11 @@ extern layer_state_t layer_state;
# include "process_tri_layer.h"
#endif
+#ifdef REPEAT_KEY_ENABLE
+# include "repeat_key.h"
+# include "process_repeat_key.h"
+#endif
+
void set_single_persistent_default_layer(uint8_t default_layer);
#define IS_LAYER_ON(layer) layer_state_is(layer)
diff --git a/quantum/repeat_key.c b/quantum/repeat_key.c
new file mode 100644
index 0000000000..0689c6d454
--- /dev/null
+++ b/quantum/repeat_key.c
@@ -0,0 +1,282 @@
+// Copyright 2022-2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "repeat_key.h"
+
+// Variables saving the state of the last key press.
+static keyrecord_t last_record = {0};
+static uint8_t last_mods = 0;
+// Signed count of the number of times the last key has been repeated or
+// alternate repeated: it is 0 when a key is pressed normally, positive when
+// repeated, and negative when alternate repeated.
+static int8_t last_repeat_count = 0;
+// The repeat_count, but set to 0 outside of repeat_key_invoke() so that it is
+// nonzero only while a repeated key is being processed.
+static int8_t processing_repeat_count = 0;
+
+uint16_t get_last_keycode(void) {
+ return last_record.keycode;
+}
+
+uint8_t get_last_mods(void) {
+ return last_mods;
+}
+
+void set_last_keycode(uint16_t keycode) {
+ set_last_record(keycode, &(keyrecord_t){
+#ifndef NO_ACTION_TAPPING
+ .tap.interrupted = false,
+ .tap.count = 1,
+#endif
+ });
+}
+
+void set_last_mods(uint8_t mods) {
+ last_mods = mods;
+}
+
+void set_last_record(uint16_t keycode, keyrecord_t* record) {
+ last_record = *record;
+ last_record.keycode = keycode;
+ last_repeat_count = 0;
+}
+
+/** @brief Updates `last_repeat_count` in direction `dir`. */
+static void update_last_repeat_count(int8_t dir) {
+ if (dir * last_repeat_count < 0) {
+ last_repeat_count = dir;
+ } else if (dir * last_repeat_count < 127) {
+ last_repeat_count += dir;
+ }
+}
+
+int8_t get_repeat_key_count(void) {
+ return processing_repeat_count;
+}
+
+void repeat_key_invoke(const keyevent_t* event) {
+ // It is possible (e.g. in rolled presses) that the last key changes while
+ // the Repeat Key is pressed. To prevent stuck keys, it is important to
+ // remember separately what key record was processed on press so that the
+ // the corresponding record is generated on release.
+ static keyrecord_t registered_record = {0};
+ static int8_t registered_repeat_count = 0;
+ // Since this function calls process_record(), it may recursively call
+ // itself. We return early if `processing_repeat_count` is nonzero to
+ // prevent infinite recursion.
+ if (processing_repeat_count || !last_record.keycode) {
+ return;
+ }
+
+ if (event->pressed) {
+ update_last_repeat_count(1);
+ // On press, apply the last mods state, stacking on top of current mods.
+ register_weak_mods(last_mods);
+ registered_record = last_record;
+ registered_repeat_count = last_repeat_count;
+ }
+
+ // Generate a keyrecord and plumb it into the event pipeline.
+ registered_record.event = *event;
+ processing_repeat_count = registered_repeat_count;
+ process_record(®istered_record);
+ processing_repeat_count = 0;
+
+ // On release, restore the mods state.
+ if (!event->pressed) {
+ unregister_weak_mods(last_mods);
+ }
+}
+
+#ifndef NO_ALT_REPEAT_KEY
+/**
+ * @brief Find alternate keycode from a table of opposing keycode pairs.
+ * @param table Array of pairs of basic keycodes, declared as PROGMEM.
+ * @param table_size_bytes The size of the table in bytes.
+ * @param target The basic keycode to find.
+ * @return The alternate basic keycode, or KC_NO if none was found.
+ *
+ * @note The table keycodes and target must be basic keycodes.
+ *
+ * This helper is used several times below to define alternate keys. Given a
+ * table of pairs of basic keycodes, the function finds the pair containing
+ * `target` and returns the other keycode in the pair.
+ */
+static uint8_t find_alt_keycode(const uint8_t (*table)[2], uint8_t table_size_bytes, uint8_t target) {
+ const uint8_t* keycodes = (const uint8_t*)table;
+ for (uint8_t i = 0; i < table_size_bytes; ++i) {
+ if (target == pgm_read_byte(keycodes + i)) {
+ // Xor (i ^ 1) the index to get the other element in the pair.
+ return pgm_read_byte(keycodes + (i ^ 1));
+ }
+ }
+ return KC_NO;
+}
+
+uint16_t get_alt_repeat_key_keycode(void) {
+ uint16_t keycode = last_record.keycode;
+ uint8_t mods = last_mods;
+
+ // Call the user callback first to give it a chance to override the default
+ // alternate key definitions that follow.
+ uint16_t alt_keycode = get_alt_repeat_key_keycode_user(keycode, mods);
+
+ if (alt_keycode != KC_TRANSPARENT) {
+ return alt_keycode;
+ }
+
+ // Convert 8-bit mods to the 5-bit format used in keycodes. This is lossy:
+ // if left and right handed mods were mixed, they all become right handed.
+ mods = ((mods & 0xf0) ? /* set right hand bit */ 0x10 : 0)
+ // Combine right and left hand mods.
+ | (((mods >> 4) | mods) & 0xf);
+
+ switch (keycode) {
+ case QK_MODS ... QK_MODS_MAX: // Unpack modifier + basic key.
+ mods |= QK_MODS_GET_MODS(keycode);
+ keycode = QK_MODS_GET_BASIC_KEYCODE(keycode);
+ break;
+
+# ifndef NO_ACTION_TAPPING
+ case QK_MOD_TAP ... QK_MOD_TAP_MAX:
+ keycode = QK_MOD_TAP_GET_TAP_KEYCODE(keycode);
+ break;
+# ifndef NO_ACTION_LAYER
+ case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:
+ keycode = QK_LAYER_TAP_GET_TAP_KEYCODE(keycode);
+ break;
+# endif // NO_ACTION_LAYER
+# endif // NO_ACTION_TAPPING
+
+# ifdef SWAP_HANDS_ENABLE
+ case QK_SWAP_HANDS ... QK_SWAP_HANDS_MAX:
+ if (IS_SWAP_HANDS_KEYCODE(keycode)) {
+ return KC_NO;
+ }
+ keycode = QK_SWAP_HANDS_GET_TAP_KEYCODE(keycode);
+ break;
+# endif // SWAP_HANDS_ENABLE
+ }
+
+ if (IS_QK_BASIC(keycode)) {
+ if ((mods & (MOD_LCTL | MOD_LALT | MOD_LGUI))) {
+ // The last key was pressed with a modifier other than Shift.
+ // The following maps
+ // mod + F <-> mod + B
+ // and a few others, supporting several core hotkeys used in
+ // Emacs, Vim, less, and other programs.
+ // clang-format off
+ static const uint8_t pairs[][2] PROGMEM = {
+ {KC_F , KC_B }, // Forward / Backward.
+ {KC_D , KC_U }, // Down / Up.
+ {KC_N , KC_P }, // Next / Previous.
+ {KC_A , KC_E }, // Home / End.
+ {KC_O , KC_I }, // Older / Newer in Vim jump list.
+ };
+ // clang-format on
+ alt_keycode = find_alt_keycode(pairs, sizeof(pairs), keycode);
+ } else {
+ // The last key was pressed with no mods or only Shift. The
+ // following map a few more Vim hotkeys.
+ // clang-format off
+ static const uint8_t pairs[][2] PROGMEM = {
+ {KC_J , KC_K }, // Down / Up.
+ {KC_H , KC_L }, // Left / Right.
+ // These two lines map W and E to B, and B to W.
+ {KC_W , KC_B }, // Forward / Backward by word.
+ {KC_E , KC_B }, // Forward / Backward by word.
+ };
+ // clang-format on
+ alt_keycode = find_alt_keycode(pairs, sizeof(pairs), keycode);
+ }
+
+ if (!alt_keycode) {
+ // The following key pairs are considered with any mods.
+ // clang-format off
+ static const uint8_t pairs[][2] PROGMEM = {
+ {KC_LEFT, KC_RGHT}, // Left / Right Arrow.
+ {KC_UP , KC_DOWN}, // Up / Down Arrow.
+ {KC_HOME, KC_END }, // Home / End.
+ {KC_PGUP, KC_PGDN}, // Page Up / Page Down.
+ {KC_BSPC, KC_DEL }, // Backspace / Delete.
+ {KC_LBRC, KC_RBRC}, // Brackets [ ] and { }.
+#ifdef EXTRAKEY_ENABLE
+ {KC_WBAK, KC_WFWD}, // Browser Back / Forward.
+ {KC_MNXT, KC_MPRV}, // Next / Previous Media Track.
+ {KC_MFFD, KC_MRWD}, // Fast Forward / Rewind Media.
+ {KC_VOLU, KC_VOLD}, // Volume Up / Down.
+ {KC_BRIU, KC_BRID}, // Brightness Up / Down.
+#endif // EXTRAKEY_ENABLE
+#ifdef MOUSEKEY_ENABLE
+ {KC_MS_L, KC_MS_R}, // Mouse Cursor Left / Right.
+ {KC_MS_U, KC_MS_D}, // Mouse Cursor Up / Down.
+ {KC_WH_L, KC_WH_R}, // Mouse Wheel Left / Right.
+ {KC_WH_U, KC_WH_D}, // Mouse Wheel Up / Down.
+#endif // MOUSEKEY_ENABLE
+ };
+ // clang-format on
+ alt_keycode = find_alt_keycode(pairs, sizeof(pairs), keycode);
+ }
+
+ if (alt_keycode) {
+ // Combine basic keycode with mods.
+ return (mods << 8) | alt_keycode;
+ }
+ }
+
+ return KC_NO; // No alternate key found.
+}
+
+void alt_repeat_key_invoke(const keyevent_t* event) {
+ static keyrecord_t registered_record = {0};
+ static int8_t registered_repeat_count = 0;
+ // Since this function calls process_record(), it may recursively call
+ // itself. We return early if `processing_repeat_count` is nonzero to
+ // prevent infinite recursion.
+ if (processing_repeat_count) {
+ return;
+ }
+
+ if (event->pressed) {
+ registered_record = (keyrecord_t){
+# ifndef NO_ACTION_TAPPING
+ .tap.interrupted = false,
+ .tap.count = 0,
+# endif
+ .keycode = get_alt_repeat_key_keycode(),
+ };
+ }
+
+ // Early return if there is no alternate key defined.
+ if (!registered_record.keycode) {
+ return;
+ }
+
+ if (event->pressed) {
+ update_last_repeat_count(-1);
+ registered_repeat_count = last_repeat_count;
+ }
+
+ // Generate a keyrecord and plumb it into the event pipeline.
+ registered_record.event = *event;
+ processing_repeat_count = registered_repeat_count;
+ process_record(®istered_record);
+ processing_repeat_count = 0;
+}
+
+// Default implementation of get_alt_repeat_key_keycode_user().
+__attribute__((weak)) uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods) {
+ return KC_TRANSPARENT;
+}
+#endif // NO_ALT_REPEAT_KEY
diff --git a/quantum/repeat_key.h b/quantum/repeat_key.h
new file mode 100644
index 0000000000..06e8364529
--- /dev/null
+++ b/quantum/repeat_key.h
@@ -0,0 +1,80 @@
+// Copyright 2022-2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "quantum.h"
+
+uint16_t get_last_keycode(void); /**< Keycode of the last key. */
+uint8_t get_last_mods(void); /**< Mods active with the last key. */
+void set_last_keycode(uint16_t keycode); /**< Sets the last key. */
+void set_last_mods(uint8_t mods); /**< Sets the last mods. */
+
+/** @brief Gets the record for the last key. */
+keyrecord_t* get_last_record(void);
+
+/** @brief Sets keycode and record info for the last key. */
+void set_last_record(uint16_t keycode, keyrecord_t* record);
+
+/**
+ * @brief Signed count of times the key has been repeated or alternate repeated.
+ *
+ * @note The count is nonzero only while a repeated or alternate-repeated key is
+ * being processed.
+ *
+ * When a key is pressed normally, the count is 0. When the Repeat Key is used
+ * to repeat a key, the count is 1 on the first repeat, 2 on the second repeat,
+ * and continuing up to 127.
+ *
+ * Negative counts are used similarly for alternate repeating. When the
+ * Alternate Repeat Key is used, the count is -1 on the first alternate repeat,
+ * -2 on the second, continuing down to -127.
+ */
+int8_t get_repeat_key_count(void);
+
+/**
+ * @brief Calls `process_record()` on a generated record repeating the last key.
+ * @param event Event information in the generated record.
+ */
+void repeat_key_invoke(const keyevent_t* event);
+
+#ifndef NO_ALT_REPEAT_KEY
+
+/**
+ * @brief Keycode to be used for alternate repeating.
+ *
+ * Alternate Repeat performs this keycode based on the last eligible pressed key
+ * and mods, get_last_keycode() and get_last_mods(). For example, when the last
+ * key was KC_UP, this function returns KC_DOWN. The function returns KC_NO if
+ * the last key doesn't have a defined alternate.
+ */
+uint16_t get_alt_repeat_key_keycode(void);
+
+/**
+ * @brief Calls `process_record()` to alternate repeat the last key.
+ * @param event Event information in the generated record.
+ */
+void alt_repeat_key_invoke(const keyevent_t* event);
+
+/**
+ * @brief Optional user callback to define additional alternate keys.
+ *
+ * When `get_alt_repeat_key_keycode()` is called, it first calls this callback.
+ * It should return a keycode representing the "alternate" of the given keycode
+ * and mods. Returning KC_NO defers to the default definitions in
+ * `get_alt_repeat_key_keycode()`.
+ */
+uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods);
+
+#endif // NO_ALT_REPEAT_KEY
diff --git a/tests/repeat_key/alt_repeat_key/config.h b/tests/repeat_key/alt_repeat_key/config.h
new file mode 100644
index 0000000000..d0c4ddadbd
--- /dev/null
+++ b/tests/repeat_key/alt_repeat_key/config.h
@@ -0,0 +1,18 @@
+// Copyright 2023 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see .
+
+#pragma once
+
+#include "test_common.h"
diff --git a/tests/repeat_key/alt_repeat_key/test.mk b/tests/repeat_key/alt_repeat_key/test.mk
new file mode 100644
index 0000000000..080871c816
--- /dev/null
+++ b/tests/repeat_key/alt_repeat_key/test.mk
@@ -0,0 +1,18 @@
+# Copyright 2023 Google LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+REPEAT_KEY_ENABLE = yes
+
+EXTRAKEY_ENABLE = yes
diff --git a/tests/repeat_key/alt_repeat_key/test_alt_repeat_key.cpp b/tests/repeat_key/alt_repeat_key/test_alt_repeat_key.cpp
new file mode 100644
index 0000000000..ae525acb45
--- /dev/null
+++ b/tests/repeat_key/alt_repeat_key/test_alt_repeat_key.cpp
@@ -0,0 +1,523 @@
+// Copyright 2023 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see .
+
+#include
+
+#include "keyboard_report_util.hpp"
+#include "keycode.h"
+#include "test_common.hpp"
+#include "test_fixture.hpp"
+#include "test_keymap_key.hpp"
+
+using ::testing::AnyNumber;
+using ::testing::InSequence;
+
+namespace {
+
+bool process_record_user_default(uint16_t keycode, keyrecord_t* record) {
+ return true;
+}
+
+bool remember_last_key_user_default(uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ return true;
+}
+
+uint16_t get_alt_repeat_key_keycode_user_default(uint16_t keycode, uint8_t mods) {
+ return KC_TRNS;
+}
+
+// Indirections so that process_record_user() can be replaced with other
+// functions in the test cases below.
+std::function process_record_user_fun = process_record_user_default;
+std::function remember_last_key_user_fun = remember_last_key_user_default;
+std::function get_alt_repeat_key_keycode_user_fun = get_alt_repeat_key_keycode_user_default;
+
+extern "C" bool process_record_user(uint16_t keycode, keyrecord_t* record) {
+ return process_record_user_fun(keycode, record);
+}
+
+extern "C" bool remember_last_key_user(uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ return remember_last_key_user_fun(keycode, record, remembered_mods);
+}
+
+extern "C" uint16_t get_alt_repeat_key_keycode_user(uint16_t keycode, uint8_t mods) {
+ return get_alt_repeat_key_keycode_user_fun(keycode, mods);
+}
+
+class AltRepeatKey : public TestFixture {
+ public:
+ bool process_record_user_was_called_;
+
+ void SetUp() override {
+ process_record_user_fun = process_record_user_default;
+ remember_last_key_user_fun = remember_last_key_user_default;
+ get_alt_repeat_key_keycode_user_fun = get_alt_repeat_key_keycode_user_default;
+ }
+
+ void ExpectProcessRecordUserCalledWith(bool expected_press, uint16_t expected_keycode, int8_t expected_repeat_key_count) {
+ process_record_user_was_called_ = false;
+ process_record_user_fun = [=](uint16_t keycode, keyrecord_t* record) {
+ EXPECT_EQ(record->event.pressed, expected_press);
+ EXPECT_KEYCODE_EQ(keycode, expected_keycode);
+ EXPECT_EQ(get_repeat_key_count(), expected_repeat_key_count);
+ // Tests below use this to verify process_record_user() was called.
+ process_record_user_was_called_ = true;
+ return true;
+ };
+ }
+
+ // Expects that the characters of `s` are sent.
+ // NOTE: This implementation is limited to chars a-z, A-Z.
+ void ExpectString(TestDriver& driver, const std::string& s) {
+ InSequence seq;
+ for (int c : s) {
+ switch (c) {
+ case 'a' ... 'z': { // Lowercase letter.
+ uint16_t keycode = c - ('a' - KC_A);
+ EXPECT_REPORT(driver, (keycode));
+ } break;
+
+ case 'A' ... 'Z': { // Capital letter = KC_LSFT + letter key.
+ uint16_t keycode = c - ('A' - KC_A);
+ EXPECT_REPORT(driver, (KC_LSFT, keycode));
+ } break;
+ }
+ }
+ }
+};
+
+TEST_F(AltRepeatKey, AlternateBasic) {
+ TestDriver driver;
+ KeymapKey key_bspc(0, 0, 0, KC_BSPC);
+ KeymapKey key_pgdn(0, 1, 0, KC_PGDN);
+ KeymapKey key_pgup(0, 2, 0, KC_PGUP);
+ KeymapKey key_repeat(0, 4, 0, QK_REP);
+ KeymapKey key_alt_repeat(0, 5, 0, QK_AREP);
+ set_keymap({key_bspc, key_pgdn, key_pgup, key_repeat, key_alt_repeat});
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ {
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_BSPC));
+ EXPECT_REPORT(driver, (KC_DEL));
+ EXPECT_REPORT(driver, (KC_DEL));
+ EXPECT_REPORT(driver, (KC_BSPC));
+ EXPECT_REPORT(driver, (KC_DEL));
+ EXPECT_REPORT(driver, (KC_PGDN));
+ EXPECT_REPORT(driver, (KC_PGUP));
+ EXPECT_REPORT(driver, (KC_PGUP));
+ EXPECT_REPORT(driver, (KC_PGDN));
+ }
+
+ tap_key(key_bspc);
+
+ for (int n = 1; n <= 2; ++n) { // Tap the Alternate Repeat Key twice.
+ ExpectProcessRecordUserCalledWith(true, KC_DEL, -n);
+ key_alt_repeat.press(); // Press the Alternate Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ // Expect the corresponding release event.
+ ExpectProcessRecordUserCalledWith(false, KC_DEL, -n);
+ key_alt_repeat.release(); // Release the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+ }
+
+ process_record_user_fun = process_record_user_default;
+ tap_keys(key_repeat, key_alt_repeat);
+ tap_keys(key_pgdn, key_alt_repeat);
+ tap_keys(key_pgup, key_alt_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+struct TestParamsAlternateKeyCodes {
+ uint16_t keycode;
+ uint8_t mods;
+ uint16_t expected_alt_keycode;
+};
+
+// Tests `get_alt_repeat_key_keycode()` for various keycodes.
+TEST_F(AltRepeatKey, GetAltRepeatKeyKeycode) {
+ for (const auto& params : std::vector({
+ // clang-format off
+ // Each line tests one call to `get_alt_repeat_key_keycode()`:
+ // {keycode, mods, expected_alt_keycode}.
+ // Arrows.
+ {KC_LEFT, 0, KC_RGHT},
+ {KC_RGHT, 0, KC_LEFT},
+ {KC_LEFT, MOD_BIT(KC_LSFT), LSFT(KC_RGHT)},
+ {KC_LEFT, MOD_BIT(KC_RSFT), RSFT(KC_RGHT)},
+ {KC_LEFT, MOD_BIT(KC_LCTL) | MOD_BIT(KC_LSFT), C(S(KC_RGHT))},
+ {KC_LEFT, MOD_BIT(KC_LGUI), LGUI(KC_RGHT)},
+ {C(KC_LEFT), MOD_BIT(KC_LSFT), C(S(KC_RGHT))},
+ {KC_UP, 0, KC_DOWN},
+ // Navigation keys.
+ {KC_PGUP, 0, KC_PGDN},
+ {KC_HOME, 0, KC_END },
+ // Media keys.
+ {KC_WBAK, 0, KC_WFWD},
+ {KC_MNXT, 0, KC_MPRV},
+ {KC_MRWD, 0, KC_MFFD},
+ {KC_VOLU, 0, KC_VOLD},
+ {KC_BRIU, 0, KC_BRID},
+ // Emacs navigation.
+ {KC_N, MOD_BIT(KC_LCTL), C(KC_P)},
+ {KC_B, MOD_BIT(KC_LCTL), LCTL(KC_F)},
+ {KC_B, MOD_BIT(KC_RCTL), RCTL(KC_F)},
+ {KC_B, MOD_BIT(KC_LALT), LALT(KC_F)},
+ {KC_F, MOD_BIT(KC_LCTL), C(KC_B)},
+ {KC_A, MOD_BIT(KC_LCTL), C(KC_E)},
+ {KC_D, MOD_BIT(KC_LCTL), C(KC_U)},
+ // Vim navigation.
+ {KC_J, 0, KC_K},
+ {KC_K, 0, KC_J},
+ {KC_H, 0, KC_L},
+ {KC_B, 0, KC_W},
+ {KC_W, 0, KC_B},
+ {KC_E, 0, KC_B},
+ {KC_B, MOD_BIT(KC_LSFT), S(KC_W)},
+ {KC_W, MOD_BIT(KC_LSFT), S(KC_B)},
+ {KC_E, MOD_BIT(KC_LSFT), S(KC_B)},
+ {KC_O, MOD_BIT(KC_LCTL), C(KC_I)},
+ {KC_I, MOD_BIT(KC_LCTL), C(KC_O)},
+ // Other.
+ {KC_DEL, 0, KC_BSPC},
+ {KC_LBRC, 0, KC_RBRC},
+ {KC_LCBR, 0, KC_RCBR},
+ // Some keys where the last key is a tap-hold key.
+ {LSFT_T(KC_F), MOD_BIT(KC_RCTL), RCTL(KC_B)},
+ {LT(1, KC_A), MOD_BIT(KC_RGUI), RGUI(KC_E)},
+ {RALT_T(KC_J), 0, KC_K},
+ // Some keys where no alternate is defined.
+ {KC_A, 0, KC_NO},
+ {KC_F1, 0, KC_NO},
+ {QK_LEAD, 0, KC_NO},
+ {MO(1), 0, KC_NO},
+ // clang-format on
+ })) {
+ SCOPED_TRACE(std::string("Input keycode: ") + get_keycode_identifier_or_default(params.keycode));
+ set_last_keycode(params.keycode);
+ set_last_mods(params.mods);
+
+ const uint16_t actual = get_alt_repeat_key_keycode();
+
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), params.expected_alt_keycode);
+ }
+}
+
+// Test adding to and overriding the above through the
+// `get_alt_repeat_key_keycode_user()` callback.
+TEST_F(AltRepeatKey, GetAltRepeatKeyKeycodeUser) {
+ get_alt_repeat_key_keycode_user_fun = [](uint16_t keycode, uint8_t mods) -> uint16_t {
+ bool shifted = (mods & MOD_MASK_SHIFT);
+ switch (keycode) {
+ case KC_LEFT:
+ return KC_ENT;
+ case MO(1):
+ return TG(1);
+ case KC_TAB: // Tab <-> Shift + Tab example.
+ if (shifted) {
+ return KC_TAB;
+ } else {
+ return S(KC_TAB);
+ }
+ }
+
+ // Ctrl + Y <-> Ctrl + Z example.
+ if ((mods & MOD_MASK_CTRL)) {
+ switch (keycode) {
+ case KC_Y:
+ return C(KC_Z);
+ case KC_Z:
+ return C(KC_Y);
+ }
+ }
+
+ return KC_NO;
+ };
+
+ set_last_keycode(KC_LEFT);
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), KC_ENT);
+
+ set_last_keycode(MO(1));
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), TG(1));
+
+ set_last_keycode(KC_TAB);
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), S(KC_TAB));
+
+ set_last_keycode(KC_TAB);
+ set_last_mods(MOD_BIT(KC_LSFT));
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), KC_TAB);
+
+ set_last_keycode(KC_Z);
+ set_last_mods(MOD_BIT(KC_LCTL));
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), C(KC_Y));
+
+ set_last_keycode(KC_Y);
+ set_last_mods(MOD_BIT(KC_LCTL));
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), C(KC_Z));
+}
+
+// Tests rolling from a key to Alternate Repeat.
+TEST_F(AltRepeatKey, RollingToAltRepeat) {
+ TestDriver driver;
+ KeymapKey key_left(0, 0, 0, KC_LEFT);
+ KeymapKey key_alt_repeat(0, 1, 0, QK_AREP);
+ set_keymap({key_left, key_alt_repeat});
+
+ {
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_LEFT));
+ EXPECT_REPORT(driver, (KC_LEFT, KC_RGHT));
+ EXPECT_REPORT(driver, (KC_RGHT));
+ EXPECT_EMPTY_REPORT(driver);
+ EXPECT_REPORT(driver, (KC_RGHT));
+ EXPECT_EMPTY_REPORT(driver);
+ }
+
+ // Perform a rolled press from Left to Alternate Repeat.
+
+ ExpectProcessRecordUserCalledWith(true, KC_LEFT, 0);
+ key_left.press();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(true, KC_RGHT, -1);
+ key_alt_repeat.press(); // Press the Alternate Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(false, KC_LEFT, 0);
+ key_left.release();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(false, KC_RGHT, -1);
+ key_alt_repeat.release(); // Release the Alternate Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ process_record_user_fun = process_record_user_default;
+ tap_key(key_alt_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests rolling from Alternate Repeat to another key.
+TEST_F(AltRepeatKey, RollingFromAltRepeat) {
+ TestDriver driver;
+ KeymapKey key_left(0, 0, 0, KC_LEFT);
+ KeymapKey key_up(0, 1, 0, KC_UP);
+ KeymapKey key_alt_repeat(0, 2, 0, QK_AREP);
+ set_keymap({key_left, key_up, key_alt_repeat});
+
+ {
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_LEFT));
+ EXPECT_EMPTY_REPORT(driver);
+ EXPECT_REPORT(driver, (KC_RGHT));
+ EXPECT_REPORT(driver, (KC_RGHT, KC_UP));
+ EXPECT_REPORT(driver, (KC_UP));
+ EXPECT_EMPTY_REPORT(driver);
+ EXPECT_REPORT(driver, (KC_DOWN));
+ EXPECT_EMPTY_REPORT(driver);
+ }
+
+ tap_key(key_left);
+
+ // Perform a rolled press from Alternate Repeat to Up.
+
+ ExpectProcessRecordUserCalledWith(true, KC_RGHT, -1);
+ key_alt_repeat.press(); // Press the Alternate Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(true, KC_UP, 0);
+ key_up.press();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_UP);
+
+ ExpectProcessRecordUserCalledWith(false, KC_RGHT, -1);
+ key_alt_repeat.release(); // Release the Alternate Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(false, KC_UP, 0);
+ key_up.release();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ process_record_user_fun = process_record_user_default;
+ tap_key(key_alt_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests using the Alternate Repeat Key on a macro that doesn't have an
+// alternate keycode defined.
+TEST_F(AltRepeatKey, AlternateUnsupportedMacro) {
+ TestDriver driver;
+ KeymapKey key_foo(0, 0, 0, QK_USER_0);
+ KeymapKey key_alt_repeat(0, 1, 0, QK_AREP);
+ set_keymap({key_foo, key_alt_repeat});
+
+ process_record_user_fun = [=](uint16_t keycode, keyrecord_t* record) {
+ process_record_user_was_called_ = true;
+ switch (keycode) {
+ case QK_USER_0:
+ if (record->event.pressed) {
+ SEND_STRING("foo");
+ }
+ break;
+ }
+ return true;
+ };
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "foofoo");
+
+ process_record_user_was_called_ = false;
+ tap_key(key_foo);
+
+ EXPECT_TRUE(process_record_user_was_called_);
+ EXPECT_KEYCODE_EQ(get_last_keycode(), QK_USER_0);
+ EXPECT_KEYCODE_EQ(get_alt_repeat_key_keycode(), KC_NO);
+
+ process_record_user_was_called_ = false;
+ key_alt_repeat.press(); // Press Alternate Repeat.
+ run_one_scan_loop();
+
+ EXPECT_FALSE(process_record_user_was_called_);
+
+ process_record_user_was_called_ = false;
+ key_alt_repeat.release(); // Release Alternate Repeat.
+ run_one_scan_loop();
+
+ EXPECT_FALSE(process_record_user_was_called_);
+
+ process_record_user_was_called_ = false;
+ tap_key(key_foo);
+
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests a macro with custom alternate behavior.
+TEST_F(AltRepeatKey, MacroCustomAlternate) {
+ TestDriver driver;
+ KeymapKey key_foo(0, 0, 0, QK_USER_0);
+ KeymapKey key_alt_repeat(0, 1, 0, QK_AREP);
+ set_keymap({key_foo, key_alt_repeat});
+
+ get_alt_repeat_key_keycode_user_fun = [](uint16_t keycode, uint8_t mods) -> uint16_t {
+ switch (keycode) {
+ case QK_USER_0:
+ return QK_USER_0; // QK_USER_0 handles its own alternate.
+ default:
+ return KC_NO; // No key by default.
+ }
+ };
+ process_record_user_fun = [=](uint16_t keycode, keyrecord_t* record) {
+ process_record_user_was_called_ = true;
+ switch (keycode) {
+ case QK_USER_0:
+ if (record->event.pressed) {
+ if (get_repeat_key_count() >= 0) {
+ SEND_STRING("foo");
+ } else { // Key is being alternate repeated.
+ SEND_STRING("bar");
+ }
+ }
+ break;
+ }
+ return true;
+ };
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "foobarbar");
+
+ tap_keys(key_foo, key_alt_repeat, key_alt_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests the Additional "Alternate" keys example from the documentation page.
+TEST_F(AltRepeatKey, AdditionalAlternateKeysExample) {
+ TestDriver driver;
+ KeymapKey key_a(0, 0, 0, KC_A);
+ KeymapKey key_w(0, 1, 0, KC_W);
+ KeymapKey key_altrep2(0, 2, 0, QK_USER_0);
+ KeymapKey key_altrep3(0, 3, 0, QK_USER_1);
+ set_keymap({key_a, key_w, key_altrep2, key_altrep3});
+
+ remember_last_key_user_fun = [](uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ switch (keycode) {
+ case QK_USER_0:
+ case QK_USER_1:
+ return false; // Ignore ALTREP keys.
+ }
+ return true; // Other keys can be repeated.
+ };
+ process_record_user_fun = [=](uint16_t keycode, keyrecord_t* record) {
+ switch (keycode) {
+ case QK_USER_0:
+ if (record->event.pressed) {
+ const uint16_t last_key = get_last_keycode();
+ switch (last_key) {
+ case KC_A:
+ SEND_STRING(/*a*/ "tion");
+ break;
+ case KC_W:
+ SEND_STRING(/*w*/ "hich");
+ break;
+ }
+ }
+ return false;
+ case QK_USER_1:
+ if (record->event.pressed) {
+ const uint16_t last_key = get_last_keycode();
+ switch (last_key) {
+ case KC_A:
+ SEND_STRING(/*a*/ "bout");
+ break;
+ case KC_W:
+ SEND_STRING(/*w*/ "ould");
+ break;
+ }
+ }
+ return false;
+ }
+ return true;
+ };
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "ationwhichaboutwould");
+
+ tap_keys(key_a, key_altrep2, key_w, key_altrep2);
+ tap_keys(key_a, key_altrep3, key_w, key_altrep3);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+} // namespace
diff --git a/tests/repeat_key/config.h b/tests/repeat_key/config.h
new file mode 100644
index 0000000000..003d980c82
--- /dev/null
+++ b/tests/repeat_key/config.h
@@ -0,0 +1,20 @@
+// Copyright 2023 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see .
+
+#pragma once
+
+#include "test_common.h"
+
+#define NO_ALT_REPEAT_KEY
diff --git a/tests/repeat_key/repeat_key_combo/config.h b/tests/repeat_key/repeat_key_combo/config.h
new file mode 100644
index 0000000000..d0c4ddadbd
--- /dev/null
+++ b/tests/repeat_key/repeat_key_combo/config.h
@@ -0,0 +1,18 @@
+// Copyright 2023 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see .
+
+#pragma once
+
+#include "test_common.h"
diff --git a/tests/repeat_key/repeat_key_combo/test.mk b/tests/repeat_key/repeat_key_combo/test.mk
new file mode 100644
index 0000000000..db6ea7789a
--- /dev/null
+++ b/tests/repeat_key/repeat_key_combo/test.mk
@@ -0,0 +1,18 @@
+# Copyright 2023 Google LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+REPEAT_KEY_ENABLE = yes
+
+COMBO_ENABLE = yes
diff --git a/tests/repeat_key/repeat_key_combo/test_repeat_key_combo.cpp b/tests/repeat_key/repeat_key_combo/test_repeat_key_combo.cpp
new file mode 100644
index 0000000000..2d2fbaa966
--- /dev/null
+++ b/tests/repeat_key/repeat_key_combo/test_repeat_key_combo.cpp
@@ -0,0 +1,67 @@
+// Copyright 2023 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see .
+
+#include "keyboard_report_util.hpp"
+#include "keycode.h"
+#include "test_common.hpp"
+#include "test_fixture.hpp"
+#include "test_keymap_key.hpp"
+
+using ::testing::AnyNumber;
+using ::testing::InSequence;
+
+namespace {
+
+extern "C" {
+// Define a combo: KC_X + KC_Y = KC_Q.
+const uint16_t xy_combo[] PROGMEM = {KC_X, KC_Y, COMBO_END};
+combo_t key_combos[] = {COMBO(xy_combo, KC_Q)};
+uint16_t COMBO_LEN = sizeof(key_combos) / sizeof(*key_combos);
+} // extern "C"
+
+class RepeatKey : public TestFixture {};
+
+// Tests repeating a combo, KC_X + KC_Y = KC_Q, by typing
+// "X, Repeat, Repeat, {X Y}, Repeat, Repeat". This produces "xxxqqq".
+TEST_F(RepeatKey, Combo) {
+ TestDriver driver;
+ KeymapKey key_x(0, 0, 0, KC_X);
+ KeymapKey key_y(0, 1, 0, KC_Y);
+ KeymapKey key_repeat(0, 2, 0, QK_REP);
+ set_keymap({key_x, key_y, key_repeat});
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ {
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_X));
+ EXPECT_REPORT(driver, (KC_X));
+ EXPECT_REPORT(driver, (KC_X));
+ EXPECT_REPORT(driver, (KC_Q));
+ EXPECT_REPORT(driver, (KC_Q));
+ EXPECT_REPORT(driver, (KC_Q));
+ }
+
+ tap_keys(key_x, key_repeat, key_repeat);
+ tap_combo({key_x, key_y});
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_Q);
+
+ tap_keys(key_repeat, key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+} // namespace
diff --git a/tests/repeat_key/test.mk b/tests/repeat_key/test.mk
new file mode 100644
index 0000000000..aec8ff3bfb
--- /dev/null
+++ b/tests/repeat_key/test.mk
@@ -0,0 +1,18 @@
+# Copyright 2023 Google LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+REPEAT_KEY_ENABLE = yes
+
+AUTO_SHIFT_ENABLE = yes
diff --git a/tests/repeat_key/test_repeat_key.cpp b/tests/repeat_key/test_repeat_key.cpp
new file mode 100644
index 0000000000..eee44fc104
--- /dev/null
+++ b/tests/repeat_key/test_repeat_key.cpp
@@ -0,0 +1,754 @@
+// Copyright 2023 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see .
+
+#include
+
+#include "keyboard_report_util.hpp"
+#include "keycode.h"
+#include "test_common.hpp"
+#include "test_fixture.hpp"
+#include "test_keymap_key.hpp"
+
+using ::testing::AnyNumber;
+using ::testing::AnyOf;
+using ::testing::InSequence;
+
+#define FOO_MACRO SAFE_RANGE
+
+namespace {
+
+bool process_record_user_default(uint16_t keycode, keyrecord_t* record) {
+ return true;
+}
+
+bool remember_last_key_user_default(uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ return true;
+}
+
+// Indirection so that process_record_user() and remember_last_key_user()
+// can be replaced with other functions in the test cases below.
+std::function process_record_user_fun = process_record_user_default;
+std::function remember_last_key_user_fun = remember_last_key_user_default;
+
+extern "C" bool process_record_user(uint16_t keycode, keyrecord_t* record) {
+ return process_record_user_fun(keycode, record);
+}
+extern "C" bool remember_last_key_user(uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ return remember_last_key_user_fun(keycode, record, remembered_mods);
+}
+
+class RepeatKey : public TestFixture {
+ public:
+ bool process_record_user_was_called_;
+
+ void SetUp() override {
+ autoshift_disable();
+ process_record_user_fun = process_record_user_default;
+ remember_last_key_user_fun = remember_last_key_user_default;
+ }
+
+ void ExpectProcessRecordUserCalledWith(bool expected_press, uint16_t expected_keycode, int8_t expected_repeat_key_count) {
+ process_record_user_was_called_ = false;
+ process_record_user_fun = [=](uint16_t keycode, keyrecord_t* record) {
+ EXPECT_EQ(record->event.pressed, expected_press);
+ EXPECT_KEYCODE_EQ(keycode, expected_keycode);
+ EXPECT_EQ(get_repeat_key_count(), expected_repeat_key_count);
+ // Tests below use this to verify process_record_user() was called.
+ process_record_user_was_called_ = true;
+ return true;
+ };
+ }
+
+ // Expects that the characters of `s` are sent.
+ // NOTE: This implementation is limited to chars a-z, A-Z.
+ void ExpectString(TestDriver& driver, const std::string& s) {
+ InSequence seq;
+ for (int c : s) {
+ switch (c) {
+ case 'a' ... 'z': { // Lowercase letter.
+ uint16_t keycode = c - ('a' - KC_A);
+ EXPECT_REPORT(driver, (keycode));
+ } break;
+
+ case 'A' ... 'Z': { // Capital letter = KC_LSFT + letter key.
+ uint16_t keycode = c - ('A' - KC_A);
+ EXPECT_REPORT(driver, (KC_LSFT, keycode));
+ } break;
+ }
+ }
+ }
+};
+
+// Tests that "A, Repeat, Repeat, B, Repeat" produces "aaabb".
+TEST_F(RepeatKey, Basic) {
+ TestDriver driver;
+ KeymapKey key_a(0, 0, 0, KC_A);
+ KeymapKey key_b(0, 1, 0, KC_B);
+ KeymapKey key_repeat(0, 2, 0, QK_REP);
+ set_keymap({key_a, key_b, key_repeat});
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "aaabb");
+
+ // When KC_A is pressed, process_record_user() should be called
+ // with a press event with keycode == KC_A and repeat_key_count() == 0.
+ ExpectProcessRecordUserCalledWith(true, KC_A, 0);
+ key_a.press();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ // After pressing A, the keycode of the key to be repeated is KC_A.
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_A);
+ EXPECT_EQ(get_last_mods(), 0);
+
+ // Expect the corresponding release event when A is released.
+ ExpectProcessRecordUserCalledWith(false, KC_A, 0);
+ key_a.release();
+ run_one_scan_loop();
+
+ for (int n = 1; n <= 2; ++n) { // Tap the Repeat Key twice.
+ // When Repeat is pressed, process_record_user() should be called with a
+ // press event with keycode == KC_A and repeat_key_count() == n.
+ ExpectProcessRecordUserCalledWith(true, KC_A, n);
+ key_repeat.press(); // Press the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ // Expect the corresponding release event.
+ ExpectProcessRecordUserCalledWith(false, KC_A, n);
+ key_repeat.release(); // Release the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+ }
+
+ process_record_user_fun = process_record_user_default;
+ tap_key(key_b);
+ // Then after tapping key_b, the keycode to be repeated becomes KC_B.
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_B);
+
+ tap_key(key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests repeating a macro. The keycode FOO_MACRO sends "foo" when pressed. The
+// test taps "FOO_MACRO, Repeat, Repeat", producing "foofoofoo".
+TEST_F(RepeatKey, Macro) {
+ TestDriver driver;
+ KeymapKey key_foo(0, 0, 0, FOO_MACRO);
+ KeymapKey key_repeat(0, 1, 0, QK_REP);
+ set_keymap({key_foo, key_repeat});
+
+ // Define process_record_user() to handle FOO_MACRO.
+ process_record_user_fun = [](uint16_t keycode, keyrecord_t* record) {
+ switch (keycode) {
+ case FOO_MACRO:
+ if (record->event.pressed) {
+ SEND_STRING("foo");
+ }
+ break;
+ }
+ return true;
+ };
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "foofoofoo");
+
+ tap_key(key_foo);
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), FOO_MACRO);
+
+ tap_keys(key_repeat, key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests a macro with customized repeat behavior: "foo" is sent normally, "bar"
+// on the first repeat, and "baz" on subsequent repeats. The test taps
+// "FOO_MACRO, Repeat, Repeat, FOO_MACRO, Repeat", producing "foobarbazfoobar".
+TEST_F(RepeatKey, MacroCustomRepeat) {
+ TestDriver driver;
+ KeymapKey key_foo(0, 0, 0, FOO_MACRO);
+ KeymapKey key_repeat(0, 1, 0, QK_REP);
+ set_keymap({key_foo, key_repeat});
+
+ process_record_user_fun = [](uint16_t keycode, keyrecord_t* record) {
+ switch (keycode) {
+ case FOO_MACRO:
+ if (record->event.pressed) {
+ switch (get_repeat_key_count()) {
+ case 0: // When pressed normally.
+ SEND_STRING("foo");
+ break;
+ case 1: // On first repeat.
+ SEND_STRING("bar");
+ break;
+ default: // On subsequent repeats.
+ SEND_STRING("baz");
+ break;
+ }
+ }
+ break;
+ }
+ return true;
+ };
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "foobarbazfoobar");
+
+ tap_key(key_foo);
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), FOO_MACRO);
+
+ tap_keys(key_repeat, key_repeat, key_foo, key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests repeating keys on different layers. A 2-layer keymap is defined:
+// Layer 0: QK_REP , MO(1) , KC_A
+// Layer 1: KC_TRNS, KC_TRNS, KC_B
+// The test does the following, which should produce "bbbaaa":
+// 1. Hold MO(1), switching to layer 1.
+// 2. Tap KC_B on layer 1.
+// 3. Release MO(1), switching back to layer 0.
+// 4. Tap Repeat twice.
+// 5. Tap KC_A on layer 0.
+// 6. Hold MO(1), switching to layer 1.
+// 7. Tap Repeat twice.
+TEST_F(RepeatKey, AcrossLayers) {
+ TestDriver driver;
+ KeymapKey key_repeat(0, 0, 0, QK_REP);
+ KeymapKey key_mo_1(0, 1, 0, MO(1));
+ KeymapKey regular_key(0, 2, 0, KC_A);
+ set_keymap({// Layer 0.
+ key_repeat, key_mo_1, regular_key,
+ // Layer 1.
+ KeymapKey{1, 0, 0, KC_TRNS}, KeymapKey{1, 1, 0, KC_TRNS}, KeymapKey{1, 2, 0, KC_B}});
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "bbbaaa");
+
+ key_mo_1.press(); // Hold the MO(1) layer key.
+ run_one_scan_loop();
+ tap_key(regular_key); // Taps the KC_B key on layer 1.
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_B);
+
+ key_mo_1.release(); // Release the layer key.
+ run_one_scan_loop();
+ tap_keys(key_repeat, key_repeat);
+ tap_key(regular_key); // Taps the KC_A key on layer 0.
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_A);
+
+ key_mo_1.press(); // Hold the layer key.
+ run_one_scan_loop();
+ tap_keys(key_repeat, key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests "A(down), Repeat(down), A(up), Repeat(up), Repeat" produces "aaa".
+TEST_F(RepeatKey, RollingToRepeat) {
+ TestDriver driver;
+ KeymapKey key_a(0, 0, 0, KC_A);
+ KeymapKey key_repeat(0, 1, 0, QK_REP);
+ set_keymap({key_a, key_repeat});
+
+ {
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_A));
+ EXPECT_EMPTY_REPORT(driver);
+ EXPECT_REPORT(driver, (KC_A));
+ EXPECT_EMPTY_REPORT(driver);
+ EXPECT_REPORT(driver, (KC_A));
+ EXPECT_EMPTY_REPORT(driver);
+ }
+
+ // Perform a rolled press from A to Repeat.
+
+ ExpectProcessRecordUserCalledWith(true, KC_A, 0);
+ key_a.press();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(true, KC_A, 1);
+ key_repeat.press(); // Press the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(false, KC_A, 0);
+ key_a.release();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(false, KC_A, 1);
+ key_repeat.release(); // Release the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ process_record_user_fun = process_record_user_default;
+ tap_key(key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests "A, Repeat(down), B(down), Repeat(up), B(up), Repeat" produces "aabb".
+TEST_F(RepeatKey, RollingFromRepeat) {
+ TestDriver driver;
+ KeymapKey key_a(0, 0, 0, KC_A);
+ KeymapKey key_b(0, 1, 0, KC_B);
+ KeymapKey key_repeat(0, 2, 0, QK_REP);
+ set_keymap({key_a, key_b, key_repeat});
+
+ {
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_A));
+ EXPECT_EMPTY_REPORT(driver);
+ EXPECT_REPORT(driver, (KC_A));
+ EXPECT_REPORT(driver, (KC_A, KC_B));
+ EXPECT_REPORT(driver, (KC_B));
+ EXPECT_EMPTY_REPORT(driver);
+ EXPECT_REPORT(driver, (KC_B));
+ EXPECT_EMPTY_REPORT(driver);
+ }
+
+ tap_key(key_a);
+
+ // Perform a rolled press from Repeat to B.
+
+ ExpectProcessRecordUserCalledWith(true, KC_A, 1);
+ key_repeat.press(); // Press the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(true, KC_B, 0);
+ key_b.press();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_B);
+
+ ExpectProcessRecordUserCalledWith(false, KC_A, 1);
+ key_repeat.release(); // Release the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ ExpectProcessRecordUserCalledWith(false, KC_B, 0);
+ key_b.release();
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ process_record_user_fun = process_record_user_default;
+ tap_key(key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests Repeat Key with a modifier, types "AltGr+C, Repeat, Repeat, C".
+TEST_F(RepeatKey, RecallMods) {
+ TestDriver driver;
+ KeymapKey key_c(0, 0, 0, KC_C);
+ KeymapKey key_altgr(0, 1, 0, KC_RALT);
+ KeymapKey key_repeat(0, 2, 0, QK_REP);
+ set_keymap({key_c, key_altgr, key_repeat});
+
+ // Allow any number of reports with no keys or only KC_RALT.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_RALT))))
+ .Times(AnyNumber());
+ // clang-format on
+
+ { // Expect: "AltGr+C, AltGr+C, AltGr+C, C".
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_RALT, KC_C));
+ EXPECT_REPORT(driver, (KC_RALT, KC_C));
+ EXPECT_REPORT(driver, (KC_RALT, KC_C));
+ EXPECT_REPORT(driver, (KC_C));
+ }
+
+ key_altgr.press();
+ run_one_scan_loop();
+ tap_key(key_c);
+ key_altgr.release();
+ run_one_scan_loop();
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_C);
+ EXPECT_EQ(get_last_mods(), MOD_BIT(KC_RALT));
+
+ tap_keys(key_repeat, key_repeat, key_c);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests that Repeat Key stacks mods, types
+// "Ctrl+Left, Repeat, Shift+Repeat, Shift+Repeat, Repeat, Left".
+TEST_F(RepeatKey, StackMods) {
+ TestDriver driver;
+ KeymapKey key_left(0, 0, 0, KC_LEFT);
+ KeymapKey key_shift(0, 1, 0, KC_LSFT);
+ KeymapKey key_ctrl(0, 2, 0, KC_LCTL);
+ KeymapKey key_repeat(0, 3, 0, QK_REP);
+ set_keymap({key_left, key_shift, key_ctrl, key_repeat});
+
+ // Allow any number of reports with no keys or only mods.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_LCTL),
+ KeyboardReport(KC_LSFT),
+ KeyboardReport(KC_LCTL, KC_LSFT))))
+ .Times(AnyNumber());
+ // clang-format on
+
+ { // Expect: "Ctrl+Left, Ctrl+Shift+Left".
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_LCTL, KC_LEFT));
+ EXPECT_REPORT(driver, (KC_LCTL, KC_LEFT));
+ EXPECT_REPORT(driver, (KC_LCTL, KC_LSFT, KC_LEFT));
+ EXPECT_REPORT(driver, (KC_LCTL, KC_LSFT, KC_LEFT));
+ EXPECT_REPORT(driver, (KC_LCTL, KC_LEFT));
+ EXPECT_REPORT(driver, (KC_LEFT));
+ }
+
+ key_ctrl.press();
+ run_one_scan_loop();
+ tap_key(key_left);
+ run_one_scan_loop();
+ key_ctrl.release();
+ run_one_scan_loop();
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_LEFT);
+ EXPECT_EQ(get_last_mods(), MOD_BIT(KC_LCTL));
+
+ tap_key(key_repeat);
+
+ key_shift.press();
+ run_one_scan_loop();
+ tap_keys(key_repeat, key_repeat);
+ key_shift.release();
+ run_one_scan_loop();
+
+ EXPECT_EQ(get_last_mods(), MOD_BIT(KC_LCTL));
+
+ tap_keys(key_repeat, key_left);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Types: "S(KC_1), Repeat, Ctrl+Repeat, Ctrl+Repeat, Repeat, KC_2".
+TEST_F(RepeatKey, ShiftedKeycode) {
+ TestDriver driver;
+ KeymapKey key_exlm(0, 0, 0, S(KC_1));
+ KeymapKey key_2(0, 1, 0, KC_2);
+ KeymapKey key_ctrl(0, 2, 0, KC_LCTL);
+ KeymapKey key_repeat(0, 3, 0, QK_REP);
+ set_keymap({key_exlm, key_2, key_ctrl, key_repeat});
+
+ // Allow any number of reports with no keys or only mods.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_LCTL),
+ KeyboardReport(KC_LSFT),
+ KeyboardReport(KC_LCTL, KC_LSFT))))
+ .Times(AnyNumber());
+ // clang-format on
+
+ { // Expect: "Shift+1, Shift+1, Ctrl+Shift+1, Ctrl+Shift+1, Shift+1, 2".
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_LSFT, KC_1));
+ EXPECT_REPORT(driver, (KC_LSFT, KC_1));
+ EXPECT_REPORT(driver, (KC_LCTL, KC_LSFT, KC_1));
+ EXPECT_REPORT(driver, (KC_LCTL, KC_LSFT, KC_1));
+ EXPECT_REPORT(driver, (KC_LSFT, KC_1));
+ EXPECT_REPORT(driver, (KC_2));
+ }
+
+ tap_key(key_exlm);
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), S(KC_1));
+
+ tap_key(key_repeat);
+
+ key_ctrl.press();
+ run_one_scan_loop();
+ tap_keys(key_repeat, key_repeat);
+ key_ctrl.release();
+ run_one_scan_loop();
+
+ tap_keys(key_repeat, key_2);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests Repeat Key with a one-shot Shift, types
+// "A, OSM(MOD_LSFT), Repeat, Repeat".
+TEST_F(RepeatKey, WithOneShotShift) {
+ TestDriver driver;
+ KeymapKey key_a(0, 0, 0, KC_A);
+ KeymapKey key_oneshot_shift(0, 1, 0, OSM(MOD_LSFT));
+ KeymapKey key_repeat(0, 2, 0, QK_REP);
+ set_keymap({key_a, key_oneshot_shift, key_repeat});
+
+ // Allow any number of reports with no keys or only KC_RALT.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_LSFT))))
+ .Times(AnyNumber());
+ // clang-format on
+ ExpectString(driver, "aAa");
+
+ tap_keys(key_a, key_oneshot_shift, key_repeat, key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests Repeat Key with a mod-tap key, types
+// "A, Repeat, Repeat, A(down), Repeat, Repeat, A(up), Repeat".
+TEST_F(RepeatKey, ModTap) {
+ TestDriver driver;
+ KeymapKey key_mt_a(0, 0, 0, LSFT_T(KC_A));
+ KeymapKey key_repeat(0, 1, 0, QK_REP);
+ set_keymap({key_mt_a, key_repeat});
+
+ // Allow any number of reports with no keys or only KC_LSFT.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_LSFT))))
+ .Times(AnyNumber());
+ // clang-format on
+ ExpectString(driver, "aaaAAa");
+
+ tap_key(key_mt_a);
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), LSFT_T(KC_A));
+
+ tap_keys(key_repeat, key_repeat);
+ key_mt_a.press();
+ run_one_scan_loop();
+ tap_key(key_repeat, TAPPING_TERM + 1);
+ tap_key(key_repeat);
+ key_mt_a.release();
+ run_one_scan_loop();
+ tap_key(key_repeat);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests with Auto Shift. When repeating an autoshiftable key, it does not
+// matter how long the original key was held, rather, quickly tapping vs.
+// long-pressing the Repeat Key determines whether the shifted key is repeated.
+//
+// The test does the following, which should produce "aaABbB":
+// 1. Tap KC_A quickly.
+// 2. Tap Repeat Key quickly.
+// 3. Long-press Repeat Key.
+// 4. Long-press KC_B.
+// 5. Tap Repeat Key quickly.
+// 6. Long-press Repeat Key.
+TEST_F(RepeatKey, AutoShift) {
+ TestDriver driver;
+ KeymapKey key_a(0, 0, 0, KC_A);
+ KeymapKey key_b(0, 1, 0, KC_B);
+ KeymapKey key_repeat(0, 2, 0, QK_REP);
+ set_keymap({key_a, key_b, key_repeat});
+
+ autoshift_enable();
+
+ // Allow any number of reports with no keys or only KC_LSFT.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_LSFT))))
+ .Times(AnyNumber());
+ // clang-format on
+ ExpectString(driver, "aaABbB");
+
+ tap_key(key_a); // Tap A quickly.
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_A);
+ EXPECT_EQ(get_last_mods(), 0);
+
+ tap_key(key_repeat);
+ tap_key(key_repeat, AUTO_SHIFT_TIMEOUT + 1);
+
+ tap_key(key_b, AUTO_SHIFT_TIMEOUT + 1); // Long press B.
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_B);
+ EXPECT_EQ(get_last_mods(), 0);
+
+ tap_key(key_repeat);
+ tap_key(key_repeat, AUTO_SHIFT_TIMEOUT + 1);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Defines `remember_last_key_user()` to forget the Shift mod and types:
+// "Ctrl+A, Repeat, Shift+A, Repeat, Shift+Repeat".
+TEST_F(RepeatKey, FilterRememberedMods) {
+ TestDriver driver;
+ KeymapKey key_a(0, 0, 0, KC_A);
+ KeymapKey key_ctrl(0, 1, 0, KC_LCTL);
+ KeymapKey key_shift(0, 2, 0, KC_LSFT);
+ KeymapKey key_repeat(0, 3, 0, QK_REP);
+ set_keymap({key_a, key_ctrl, key_shift, key_repeat});
+
+ remember_last_key_user_fun = [](uint16_t keycode, keyrecord_t* record, uint8_t* remembered_mods) {
+ *remembered_mods &= ~MOD_MASK_SHIFT;
+ return true;
+ };
+
+ // Allow any number of reports with no keys or only mods.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_LCTL),
+ KeyboardReport(KC_LSFT),
+ KeyboardReport(KC_LCTL, KC_LSFT))))
+ .Times(AnyNumber());
+ // clang-format on
+
+ { // Expect: "Ctrl+A, Ctrl+A, Shift+A, A, Shift+A".
+ InSequence seq;
+ EXPECT_REPORT(driver, (KC_LCTL, KC_A));
+ EXPECT_REPORT(driver, (KC_LCTL, KC_A));
+ EXPECT_REPORT(driver, (KC_LSFT, KC_A));
+ EXPECT_REPORT(driver, (KC_A));
+ EXPECT_REPORT(driver, (KC_LSFT, KC_A));
+ }
+
+ key_ctrl.press();
+ run_one_scan_loop();
+ tap_key(key_a);
+
+ EXPECT_EQ(get_last_mods(), MOD_BIT(KC_LCTL));
+
+ key_ctrl.release();
+ run_one_scan_loop();
+
+ tap_key(key_repeat);
+ key_shift.press();
+ run_one_scan_loop();
+ tap_key(key_a);
+
+ EXPECT_EQ(get_last_mods(), 0); // Shift should be forgotten.
+
+ key_shift.release();
+ run_one_scan_loop();
+
+ tap_key(key_repeat);
+
+ key_shift.press();
+ run_one_scan_loop();
+ tap_key(key_repeat);
+ key_shift.release();
+ run_one_scan_loop();
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests set_last_keycode() and set_last_mods().
+TEST_F(RepeatKey, SetRepeatKeyKeycode) {
+ TestDriver driver;
+ KeymapKey key_repeat(0, 0, 0, QK_REP);
+ set_keymap({key_repeat});
+
+ // Allow any number of reports with no keys or only KC_LSFT.
+ // clang-format off
+ EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+ KeyboardReport(),
+ KeyboardReport(KC_LSFT))))
+ .Times(AnyNumber());
+ // clang-format on
+ ExpectString(driver, "aaBB");
+
+ set_last_keycode(KC_A);
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_A);
+
+ for (int n = 1; n <= 2; ++n) { // Tap the Repeat Key twice.
+ // When Repeat is pressed, process_record_user() should be called with a
+ // press event with keycode == KC_A and repeat_key_count() == n.
+ ExpectProcessRecordUserCalledWith(true, KC_A, n);
+ key_repeat.press(); // Press the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ // Expect the corresponding release event.
+ ExpectProcessRecordUserCalledWith(false, KC_A, n);
+ key_repeat.release(); // Release the Repeat Key.
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+ }
+
+ process_record_user_fun = process_record_user_default;
+ set_last_keycode(KC_B);
+ set_last_mods(MOD_BIT(KC_LSFT));
+
+ tap_keys(key_repeat, key_repeat);
+
+ set_last_keycode(KC_NO);
+ tap_keys(key_repeat, key_repeat); // Has no effect.
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+// Tests the `repeat_key_invoke()` function.
+TEST_F(RepeatKey, RepeatKeyInvoke) {
+ TestDriver driver;
+ KeymapKey key_s(0, 0, 0, KC_S);
+ set_keymap({key_s});
+
+ // Allow any number of empty reports.
+ EXPECT_EMPTY_REPORT(driver).Times(AnyNumber());
+ ExpectString(driver, "ss");
+
+ tap_key(key_s);
+
+ EXPECT_KEYCODE_EQ(get_last_keycode(), KC_S);
+
+ // Calling repeat_key_invoke() should result in process_record_user()
+ // getting a press event with keycode KC_S.
+ ExpectProcessRecordUserCalledWith(true, KC_S, 1);
+ keyevent_t event;
+ event.key = {0, 0};
+ event.pressed = true;
+ event.time = timer_read();
+ event.type = KEY_EVENT;
+ repeat_key_invoke(&event);
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ // Make the release event.
+ ExpectProcessRecordUserCalledWith(false, KC_S, 1);
+ event.pressed = false;
+ event.time = timer_read();
+ repeat_key_invoke(&event);
+ run_one_scan_loop();
+ EXPECT_TRUE(process_record_user_was_called_);
+
+ testing::Mock::VerifyAndClearExpectations(&driver);
+}
+
+} // namespace
diff --git a/tests/test_common/keycode_table.cpp b/tests/test_common/keycode_table.cpp
index d21630c01b..9ed80cdbcf 100644
--- a/tests/test_common/keycode_table.cpp
+++ b/tests/test_common/keycode_table.cpp
@@ -663,6 +663,8 @@ std::map KEYCODE_ID_TABLE = {
{QK_AUTOCORRECT_TOGGLE, "QK_AUTOCORRECT_TOGGLE"},
{QK_TRI_LAYER_LOWER, "QK_TRI_LAYER_LOWER"},
{QK_TRI_LAYER_UPPER, "QK_TRI_LAYER_UPPER"},
+ {QK_REPEAT_KEY, "QK_REPEAT_KEY"},
+ {QK_ALT_REPEAT_KEY, "QK_ALT_REPEAT_KEY"},
{QK_KB_0, "QK_KB_0"},
{QK_KB_1, "QK_KB_1"},
{QK_KB_2, "QK_KB_2"},
diff --git a/tests/test_common/test_driver.hpp b/tests/test_common/test_driver.hpp
index 8d09e44840..d8a6885d0f 100644
--- a/tests/test_common/test_driver.hpp
+++ b/tests/test_common/test_driver.hpp
@@ -20,6 +20,7 @@
#include
#include "host.h"
#include "keyboard_report_util.hpp"
+#include "keycode_util.hpp"
#include "test_logger.hpp"
class TestDriver {
@@ -98,6 +99,17 @@ class TestDriver {
*/
#define EXPECT_NO_REPORT(driver) EXPECT_ANY_REPORT(driver).Times(0)
+/** @brief Tests whether keycode `actual` is equal to `expected`. */
+#define EXPECT_KEYCODE_EQ(actual, expected) EXPECT_THAT((actual), KeycodeEq((expected)))
+
+MATCHER_P(KeycodeEq, expected_keycode, "is equal to " + testing::PrintToString(expected_keycode) + ", keycode " + get_keycode_identifier_or_default(expected_keycode)) {
+ if (arg == expected_keycode) {
+ return true;
+ }
+ *result_listener << "keycode " << get_keycode_identifier_or_default(arg);
+ return false;
+}
+
/**
* @brief Verify and clear all gmock expectations that have been setup until
* this point.