// 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