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unleashed-firmware/applications/system/hid_app/views/hid_keyboard.c
MX a35159c220
merge official fw hid app keyboard changes 
replace our icons with ofw icons, include better modifiers support
2024-02-10 21:58:07 +03:00

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#include "hid_keyboard.h"
#include <furi.h>
#include <gui/elements.h>
#include <gui/icon_i.h>
#include "../hid.h"
#include "hid_icons.h"
#define TAG "HidKeyboard"
struct HidKeyboard {
View* view;
Hid* hid;
};
typedef struct {
bool shift;
bool alt;
bool ctrl;
bool gui;
uint8_t x;
uint8_t y;
uint8_t last_key_code;
bool ok_pressed;
bool back_pressed;
bool connected;
HidTransport transport;
} HidKeyboardModel;
typedef struct {
uint8_t width;
char key;
char shift_key;
const Icon* icon;
const Icon* icon_toggled;
uint8_t value;
} HidKeyboardKey;
typedef struct {
int8_t x;
int8_t y;
} HidKeyboardPoint;
// 4 BY 12
#define MARGIN_TOP 0
#define MARGIN_LEFT 4
#define KEY_WIDTH 9
#define KEY_HEIGHT 12
#define KEY_PADDING 1
#define ROW_COUNT 7
#define COLUMN_COUNT 12
// 0 width items are not drawn, but their value is used
const HidKeyboardKey hid_keyboard_keyset[ROW_COUNT][COLUMN_COUNT] = {
{
{.width = 1, .icon = &I_ButtonF1_5x8, .value = HID_KEYBOARD_F1},
{.width = 1, .icon = &I_ButtonF2_5x8, .value = HID_KEYBOARD_F2},
{.width = 1, .icon = &I_ButtonF3_5x8, .value = HID_KEYBOARD_F3},
{.width = 1, .icon = &I_ButtonF4_5x8, .value = HID_KEYBOARD_F4},
{.width = 1, .icon = &I_ButtonF5_5x8, .value = HID_KEYBOARD_F5},
{.width = 1, .icon = &I_ButtonF6_5x8, .value = HID_KEYBOARD_F6},
{.width = 1, .icon = &I_ButtonF7_5x8, .value = HID_KEYBOARD_F7},
{.width = 1, .icon = &I_ButtonF8_5x8, .value = HID_KEYBOARD_F8},
{.width = 1, .icon = &I_ButtonF9_5x8, .value = HID_KEYBOARD_F9},
{.width = 1, .icon = &I_ButtonF10_5x8, .value = HID_KEYBOARD_F10},
{.width = 1, .icon = &I_ButtonF11_5x8, .value = HID_KEYBOARD_F11},
{.width = 1, .icon = &I_ButtonF12_5x8, .value = HID_KEYBOARD_F12},
},
{
{.width = 1, .icon = NULL, .key = '1', .shift_key = '!', .value = HID_KEYBOARD_1},
{.width = 1, .icon = NULL, .key = '2', .shift_key = '@', .value = HID_KEYBOARD_2},
{.width = 1, .icon = NULL, .key = '3', .shift_key = '#', .value = HID_KEYBOARD_3},
{.width = 1, .icon = NULL, .key = '4', .shift_key = '$', .value = HID_KEYBOARD_4},
{.width = 1, .icon = NULL, .key = '5', .shift_key = '%', .value = HID_KEYBOARD_5},
{.width = 1, .icon = NULL, .key = '6', .shift_key = '^', .value = HID_KEYBOARD_6},
{.width = 1, .icon = NULL, .key = '7', .shift_key = '&', .value = HID_KEYBOARD_7},
{.width = 1, .icon = NULL, .key = '8', .shift_key = '*', .value = HID_KEYBOARD_8},
{.width = 1, .icon = NULL, .key = '9', .shift_key = '(', .value = HID_KEYBOARD_9},
{.width = 1, .icon = NULL, .key = '0', .shift_key = ')', .value = HID_KEYBOARD_0},
{.width = 2, .icon = &I_Backspace_9x7, .value = HID_KEYBOARD_DELETE},
{.width = 0, .value = HID_KEYBOARD_DELETE},
},
{
{.width = 1, .icon = NULL, .key = 'q', .shift_key = 'Q', .value = HID_KEYBOARD_Q},
{.width = 1, .icon = NULL, .key = 'w', .shift_key = 'W', .value = HID_KEYBOARD_W},
{.width = 1, .icon = NULL, .key = 'e', .shift_key = 'E', .value = HID_KEYBOARD_E},
{.width = 1, .icon = NULL, .key = 'r', .shift_key = 'R', .value = HID_KEYBOARD_R},
{.width = 1, .icon = NULL, .key = 't', .shift_key = 'T', .value = HID_KEYBOARD_T},
{.width = 1, .icon = NULL, .key = 'y', .shift_key = 'Y', .value = HID_KEYBOARD_Y},
{.width = 1, .icon = NULL, .key = 'u', .shift_key = 'U', .value = HID_KEYBOARD_U},
{.width = 1, .icon = NULL, .key = 'i', .shift_key = 'I', .value = HID_KEYBOARD_I},
{.width = 1, .icon = NULL, .key = 'o', .shift_key = 'O', .value = HID_KEYBOARD_O},
{.width = 1, .icon = NULL, .key = 'p', .shift_key = 'P', .value = HID_KEYBOARD_P},
{.width = 1, .icon = NULL, .key = '[', .shift_key = '{', .value = HID_KEYBOARD_OPEN_BRACKET},
{.width = 1,
.icon = NULL,
.key = ']',
.shift_key = '}',
.value = HID_KEYBOARD_CLOSE_BRACKET},
},
{
{.width = 1, .icon = NULL, .key = 'a', .shift_key = 'A', .value = HID_KEYBOARD_A},
{.width = 1, .icon = NULL, .key = 's', .shift_key = 'S', .value = HID_KEYBOARD_S},
{.width = 1, .icon = NULL, .key = 'd', .shift_key = 'D', .value = HID_KEYBOARD_D},
{.width = 1, .icon = NULL, .key = 'f', .shift_key = 'F', .value = HID_KEYBOARD_F},
{.width = 1, .icon = NULL, .key = 'g', .shift_key = 'G', .value = HID_KEYBOARD_G},
{.width = 1, .icon = NULL, .key = 'h', .shift_key = 'H', .value = HID_KEYBOARD_H},
{.width = 1, .icon = NULL, .key = 'j', .shift_key = 'J', .value = HID_KEYBOARD_J},
{.width = 1, .icon = NULL, .key = 'k', .shift_key = 'K', .value = HID_KEYBOARD_K},
{.width = 1, .icon = NULL, .key = 'l', .shift_key = 'L', .value = HID_KEYBOARD_L},
{.width = 1, .icon = NULL, .key = ';', .shift_key = ':', .value = HID_KEYBOARD_SEMICOLON},
{.width = 2, .icon = &I_Return_10x7, .value = HID_KEYBOARD_RETURN},
{.width = 0, .value = HID_KEYBOARD_RETURN},
},
{
{.width = 1, .icon = NULL, .key = 'z', .shift_key = 'Z', .value = HID_KEYBOARD_Z},
{.width = 1, .icon = NULL, .key = 'x', .shift_key = 'X', .value = HID_KEYBOARD_X},
{.width = 1, .icon = NULL, .key = 'c', .shift_key = 'C', .value = HID_KEYBOARD_C},
{.width = 1, .icon = NULL, .key = 'v', .shift_key = 'V', .value = HID_KEYBOARD_V},
{.width = 1, .icon = NULL, .key = 'b', .shift_key = 'B', .value = HID_KEYBOARD_B},
{.width = 1, .icon = NULL, .key = 'n', .shift_key = 'N', .value = HID_KEYBOARD_N},
{.width = 1, .icon = NULL, .key = 'm', .shift_key = 'M', .value = HID_KEYBOARD_M},
{.width = 1, .icon = NULL, .key = '/', .shift_key = '?', .value = HID_KEYBOARD_SLASH},
{.width = 1, .icon = NULL, .key = '\\', .shift_key = '|', .value = HID_KEYBOARD_BACKSLASH},
{.width = 1, .icon = NULL, .key = '`', .shift_key = '~', .value = HID_KEYBOARD_GRAVE_ACCENT},
{.width = 1, .icon = &I_ButtonUp_7x4, .value = HID_KEYBOARD_UP_ARROW},
{.width = 1, .icon = NULL, .key = '-', .shift_key = '_', .value = HID_KEYBOARD_MINUS},
},
{
{.width = 1,
.icon = &I_Pin_arrow_up_7x9,
.icon_toggled = &I_Shift_pressed_7x10,
.value = HID_KEYBOARD_L_SHIFT},
{.width = 1, .icon = NULL, .key = ',', .shift_key = '<', .value = HID_KEYBOARD_COMMA},
{.width = 1, .icon = NULL, .key = '.', .shift_key = '>', .value = HID_KEYBOARD_DOT},
{.width = 4, .icon = NULL, .key = ' ', .value = HID_KEYBOARD_SPACEBAR},
{.width = 0, .value = HID_KEYBOARD_SPACEBAR},
{.width = 0, .value = HID_KEYBOARD_SPACEBAR},
{.width = 0, .value = HID_KEYBOARD_SPACEBAR},
{.width = 1, .icon = NULL, .key = '\'', .shift_key = '\"', .value = HID_KEYBOARD_APOSTROPHE},
{.width = 1, .icon = NULL, .key = '=', .shift_key = '+', .value = HID_KEYBOARD_EQUAL_SIGN},
{.width = 1, .icon = &I_ButtonLeft_4x7, .value = HID_KEYBOARD_LEFT_ARROW},
{.width = 1, .icon = &I_ButtonDown_7x4, .value = HID_KEYBOARD_DOWN_ARROW},
{.width = 1, .icon = &I_ButtonRight_4x7, .value = HID_KEYBOARD_RIGHT_ARROW},
},
{
{.width = 2,
.icon = &I_Ctrl_17x10,
.icon_toggled = &I_Ctrl_pressed_17x10,
.value = HID_KEYBOARD_L_CTRL},
{.width = 0, .value = HID_KEYBOARD_L_CTRL},
{.width = 2,
.icon = &I_Alt_17x10,
.icon_toggled = &I_Alt_pressed_17x10,
.value = HID_KEYBOARD_L_ALT},
{.width = 0, .value = HID_KEYBOARD_L_ALT},
{.width = 2,
.icon = &I_Cmd_17x10,
.icon_toggled = &I_Cmd_pressed_17x10,
.value = HID_KEYBOARD_L_GUI},
{.width = 0, .value = HID_KEYBOARD_L_GUI},
{.width = 2, .icon = &I_Tab_17x10, .value = HID_KEYBOARD_TAB},
{.width = 0, .value = HID_KEYBOARD_TAB},
{.width = 2, .icon = &I_Esc_17x10, .value = HID_KEYBOARD_ESCAPE},
{.width = 0, .value = HID_KEYBOARD_ESCAPE},
{.width = 2, .icon = &I_Del_17x10, .value = HID_KEYBOARD_DELETE_FORWARD},
{.width = 0, .value = HID_KEYBOARD_DELETE_FORWARD},
},
};
static void hid_keyboard_draw_key(
Canvas* canvas,
HidKeyboardModel* model,
uint8_t x,
uint8_t y,
HidKeyboardKey key,
bool selected) {
if(!key.width) return;
canvas_set_color(canvas, ColorBlack);
uint8_t keyWidth = KEY_WIDTH * key.width + KEY_PADDING * (key.width - 1);
if(selected) {
// Draw a filled box
elements_slightly_rounded_box(
canvas,
MARGIN_LEFT + x * (KEY_WIDTH + KEY_PADDING),
MARGIN_TOP + y * (KEY_HEIGHT + KEY_PADDING),
keyWidth,
KEY_HEIGHT);
canvas_set_color(canvas, ColorWhite);
} else {
// Draw a framed box
elements_slightly_rounded_frame(
canvas,
MARGIN_LEFT + x * (KEY_WIDTH + KEY_PADDING),
MARGIN_TOP + y * (KEY_HEIGHT + KEY_PADDING),
keyWidth,
KEY_HEIGHT);
}
if(key.icon != NULL) {
const Icon* key_icon = key.icon;
if((model->ctrl && key.value == HID_KEYBOARD_L_CTRL) ||
(model->alt && key.value == HID_KEYBOARD_L_ALT) ||
(model->shift && key.value == HID_KEYBOARD_L_SHIFT) ||
(model->gui && key.value == HID_KEYBOARD_L_GUI)) {
if(key.icon_toggled) {
key_icon = key.icon_toggled;
}
}
// Draw the icon centered on the button
canvas_draw_icon(
canvas,
MARGIN_LEFT + x * (KEY_WIDTH + KEY_PADDING) + keyWidth / 2 - key_icon->width / 2,
MARGIN_TOP + y * (KEY_HEIGHT + KEY_PADDING) + KEY_HEIGHT / 2 - key_icon->height / 2,
key_icon);
} else {
char key_str[2] = "\0\0";
// If shift is toggled use the shift key when available
key_str[0] = (model->shift && key.shift_key != 0) ? key.shift_key : key.key;
canvas_draw_str_aligned(
canvas,
MARGIN_LEFT + x * (KEY_WIDTH + KEY_PADDING) + keyWidth / 2 + 1,
MARGIN_TOP + y * (KEY_HEIGHT + KEY_PADDING) + KEY_HEIGHT / 2,
AlignCenter,
AlignCenter,
key_str);
}
}
static void hid_keyboard_draw_callback(Canvas* canvas, void* context) {
furi_assert(context);
HidKeyboardModel* model = context;
// Header
if((!model->connected) && (model->transport == HidTransportBle)) {
canvas_draw_icon(canvas, 0, 0, &I_Ble_disconnected_15x15);
canvas_set_font(canvas, FontPrimary);
elements_multiline_text_aligned(canvas, 17, 3, AlignLeft, AlignTop, "Keyboard");
canvas_draw_icon(canvas, 68, 3, &I_Pin_back_arrow_10x8);
canvas_set_font(canvas, FontSecondary);
elements_multiline_text_aligned(canvas, 127, 4, AlignRight, AlignTop, "Hold to exit");
elements_multiline_text_aligned(
canvas, 4, 60, AlignLeft, AlignBottom, "Waiting for Connection...");
return; // Dont render the keyboard if we are not yet connected
}
canvas_set_font(canvas, FontKeyboard);
// Start shifting the all keys up if on the next row (Scrolling)
uint8_t initY = model->y == 0 ? 0 : 1;
if(model->y > 5) {
initY = model->y - 4;
}
elements_scrollbar(canvas, initY, 3);
for(uint8_t y = initY; y < ROW_COUNT; y++) {
const HidKeyboardKey* keyboardKeyRow = hid_keyboard_keyset[y];
uint8_t x = 0;
for(uint8_t i = 0; i < COLUMN_COUNT; i++) {
HidKeyboardKey key = keyboardKeyRow[i];
// Select when the button is hovered
// Select if the button is hovered within its width
// Select if back is clicked and its the backspace key
// Deselect when the button clicked or not hovered
bool keySelected = (x <= model->x && model->x < (x + key.width)) && y == model->y;
bool backSelected = model->back_pressed && key.value == HID_KEYBOARD_DELETE;
hid_keyboard_draw_key(
canvas,
model,
x,
y - initY,
key,
(!model->ok_pressed && keySelected) || backSelected);
x += key.width;
}
}
}
static uint8_t hid_keyboard_get_selected_key(HidKeyboardModel* model) {
HidKeyboardKey key = hid_keyboard_keyset[model->y][model->x];
return key.value;
}
static void hid_keyboard_get_select_key(HidKeyboardModel* model, HidKeyboardPoint delta) {
// Keep going until a valid spot is found, this allows for nulls and zero width keys in the map
do {
const int delta_sum = model->y + delta.y;
model->y = delta_sum < 0 ? ROW_COUNT - 1 : delta_sum % ROW_COUNT;
} while(delta.y != 0 && hid_keyboard_keyset[model->y][model->x].value == 0);
do {
const int delta_sum = model->x + delta.x;
model->x = delta_sum < 0 ? COLUMN_COUNT - 1 : delta_sum % COLUMN_COUNT;
} while(delta.x != 0 && hid_keyboard_keyset[model->y][model->x].width ==
0); // Skip zero width keys, pretend they are one key
}
static void hid_keyboard_modifier_set(Hid* hid, uint16_t keycode, bool is_pressed) {
if(is_pressed) {
hid_hal_keyboard_press(hid, keycode);
} else {
hid_hal_keyboard_release(hid, keycode);
}
}
static void hid_keyboard_process(HidKeyboard* hid_keyboard, InputEvent* event) {
with_view_model(
hid_keyboard->view,
HidKeyboardModel * model,
{
if(event->key == InputKeyOk) {
if(event->type == InputTypePress) {
model->ok_pressed = true;
} else if(event->type == InputTypeLong || event->type == InputTypeShort) {
model->last_key_code = hid_keyboard_get_selected_key(model);
// Toggle the modifier key when clicked, and click the key
if(model->last_key_code == HID_KEYBOARD_L_SHIFT) {
model->shift = !model->shift;
hid_keyboard_modifier_set(
hid_keyboard->hid, KEY_MOD_LEFT_SHIFT, model->shift);
} else if(model->last_key_code == HID_KEYBOARD_L_ALT) {
model->alt = !model->alt;
hid_keyboard_modifier_set(hid_keyboard->hid, KEY_MOD_LEFT_ALT, model->alt);
} else if(model->last_key_code == HID_KEYBOARD_L_CTRL) {
model->ctrl = !model->ctrl;
hid_keyboard_modifier_set(
hid_keyboard->hid, KEY_MOD_LEFT_CTRL, model->ctrl);
} else if(model->last_key_code == HID_KEYBOARD_L_GUI) {
model->gui = !model->gui;
hid_keyboard_modifier_set(hid_keyboard->hid, KEY_MOD_LEFT_GUI, model->gui);
} else {
hid_hal_keyboard_press(hid_keyboard->hid, model->last_key_code);
}
} else if(event->type == InputTypeRelease) {
// Release happens after short and long presses
hid_hal_keyboard_release(hid_keyboard->hid, model->last_key_code);
model->ok_pressed = false;
}
} else if(event->key == InputKeyBack) {
// If back is pressed for a short time, backspace
if(event->type == InputTypePress) {
model->back_pressed = true;
} else if(event->type == InputTypeShort) {
hid_hal_keyboard_press(hid_keyboard->hid, HID_KEYBOARD_DELETE);
hid_hal_keyboard_release(hid_keyboard->hid, HID_KEYBOARD_DELETE);
} else if(event->type == InputTypeRelease) {
model->back_pressed = false;
}
} else if(event->type == InputTypePress || event->type == InputTypeRepeat) {
// Cycle the selected keys
if(event->key == InputKeyUp) {
hid_keyboard_get_select_key(model, (HidKeyboardPoint){.x = 0, .y = -1});
} else if(event->key == InputKeyDown) {
hid_keyboard_get_select_key(model, (HidKeyboardPoint){.x = 0, .y = 1});
} else if(event->key == InputKeyLeft) {
hid_keyboard_get_select_key(model, (HidKeyboardPoint){.x = -1, .y = 0});
} else if(event->key == InputKeyRight) {
hid_keyboard_get_select_key(model, (HidKeyboardPoint){.x = 1, .y = 0});
}
}
},
true);
}
static bool hid_keyboard_input_callback(InputEvent* event, void* context) {
furi_assert(context);
HidKeyboard* hid_keyboard = context;
bool consumed = false;
if(event->type == InputTypeLong && event->key == InputKeyBack) {
hid_hal_keyboard_release_all(hid_keyboard->hid);
with_view_model(
hid_keyboard->view,
HidKeyboardModel * model,
{
model->shift = false;
model->alt = false;
model->ctrl = false;
model->gui = false;
},
true);
} else {
hid_keyboard_process(hid_keyboard, event);
consumed = true;
}
return consumed;
}
HidKeyboard* hid_keyboard_alloc(Hid* bt_hid) {
HidKeyboard* hid_keyboard = malloc(sizeof(HidKeyboard));
hid_keyboard->view = view_alloc();
hid_keyboard->hid = bt_hid;
view_set_context(hid_keyboard->view, hid_keyboard);
view_allocate_model(hid_keyboard->view, ViewModelTypeLocking, sizeof(HidKeyboardModel));
view_set_draw_callback(hid_keyboard->view, hid_keyboard_draw_callback);
view_set_input_callback(hid_keyboard->view, hid_keyboard_input_callback);
with_view_model(
hid_keyboard->view,
HidKeyboardModel * model,
{
model->transport = bt_hid->transport;
model->y = 1;
},
true);
return hid_keyboard;
}
void hid_keyboard_free(HidKeyboard* hid_keyboard) {
furi_assert(hid_keyboard);
view_free(hid_keyboard->view);
free(hid_keyboard);
}
View* hid_keyboard_get_view(HidKeyboard* hid_keyboard) {
furi_assert(hid_keyboard);
return hid_keyboard->view;
}
void hid_keyboard_set_connected_status(HidKeyboard* hid_keyboard, bool connected) {
furi_assert(hid_keyboard);
with_view_model(
hid_keyboard->view, HidKeyboardModel * model, { model->connected = connected; }, true);
}
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