[FL-2230] SubGhz: protocol API refactoring (#969)

* SubGhz: protocols library refactoring
* SubGhz: new architecture and refactoring
* SubGhz: simplify protocol structure, remove unused types
* SubGhz: rename Subghz to SubGhz
* SubGhz: add environment concept

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>

applications/subghz/views/transmitter.c

@@ -0,0 +1,175 @@
+#include "transmitter.h"
+#include "../subghz_i.h"
+
+#include <input/input.h>
+#include <gui/elements.h>
+
+struct SubGhzViewTransmitter {
+    View* view;
+    SubGhzViewTransmitterCallback callback;
+    void* context;
+};
+
+typedef struct {
+    string_t frequency_str;
+    string_t preset_str;
+    string_t key_str;
+    uint8_t show_button;
+} SubGhzViewTransmitterModel;
+
+void subghz_view_transmitter_set_callback(
+    SubGhzViewTransmitter* subghz_transmitter,
+    SubGhzViewTransmitterCallback callback,
+    void* context) {
+    furi_assert(subghz_transmitter);
+
+    subghz_transmitter->callback = callback;
+    subghz_transmitter->context = context;
+}
+
+void subghz_view_transmitter_add_data_to_show(
+    SubGhzViewTransmitter* subghz_transmitter,
+    const char* key_str,
+    const char* frequency_str,
+    const char* preset_str,
+    uint8_t show_button) {
+    furi_assert(subghz_transmitter);
+    with_view_model(
+        subghz_transmitter->view, (SubGhzViewTransmitterModel * model) {
+            string_set(model->key_str, key_str);
+            string_set(model->frequency_str, frequency_str);
+            string_set(model->preset_str, preset_str);
+            model->show_button = show_button;
+            return true;
+        });
+}
+
+static void subghz_view_transmitter_button_right(Canvas* canvas, const char* str) {
+    const uint8_t button_height = 13;
+    const uint8_t vertical_offset = 3;
+    const uint8_t horizontal_offset = 1;
+    const uint8_t string_width = canvas_string_width(canvas, str);
+    const Icon* icon = &I_ButtonCenter_7x7;
+    const uint8_t icon_offset = 3;
+    const uint8_t icon_width_with_offset = icon_get_width(icon) + icon_offset;
+    const uint8_t button_width = string_width + horizontal_offset * 2 + icon_width_with_offset;
+
+    const uint8_t x = (canvas_width(canvas) - button_width) / 2 + 40;
+    const uint8_t y = canvas_height(canvas);
+
+    canvas_draw_box(canvas, x, y - button_height, button_width, button_height);
+
+    canvas_draw_line(canvas, x - 1, y, x - 1, y - button_height + 0);
+    canvas_draw_line(canvas, x - 2, y, x - 2, y - button_height + 1);
+    canvas_draw_line(canvas, x - 3, y, x - 3, y - button_height + 2);
+
+    canvas_draw_line(canvas, x + button_width + 0, y, x + button_width + 0, y - button_height + 0);
+    canvas_draw_line(canvas, x + button_width + 1, y, x + button_width + 1, y - button_height + 1);
+    canvas_draw_line(canvas, x + button_width + 2, y, x + button_width + 2, y - button_height + 2);
+
+    canvas_invert_color(canvas);
+    canvas_draw_icon(
+        canvas, x + horizontal_offset, y - button_height + vertical_offset, &I_ButtonCenter_7x7);
+    canvas_draw_str(
+        canvas, x + horizontal_offset + icon_width_with_offset, y - vertical_offset, str);
+    canvas_invert_color(canvas);
+}
+
+void subghz_view_transmitter_draw(Canvas* canvas, SubGhzViewTransmitterModel* model) {
+    canvas_clear(canvas);
+    canvas_set_color(canvas, ColorBlack);
+    canvas_set_font(canvas, FontSecondary);
+    elements_multiline_text(canvas, 0, 8, string_get_cstr(model->key_str));
+    canvas_draw_str(canvas, 78, 8, string_get_cstr(model->frequency_str));
+    canvas_draw_str(canvas, 113, 8, string_get_cstr(model->preset_str));
+    if(model->show_button) subghz_view_transmitter_button_right(canvas, "Send");
+}
+
+bool subghz_view_transmitter_input(InputEvent* event, void* context) {
+    furi_assert(context);
+    SubGhzViewTransmitter* subghz_transmitter = context;
+    bool can_be_sent = false;
+
+    if(event->key == InputKeyBack && event->type == InputTypeShort) {
+        with_view_model(
+            subghz_transmitter->view, (SubGhzViewTransmitterModel * model) {
+                string_reset(model->frequency_str);
+                string_reset(model->preset_str);
+                string_reset(model->key_str);
+                model->show_button = 0;
+                return false;
+            });
+        return false;
+    }
+
+    with_view_model(
+        subghz_transmitter->view, (SubGhzViewTransmitterModel * model) {
+            if(model->show_button) {
+                can_be_sent = true;
+            }
+            return true;
+        });
+
+    if(can_be_sent && event->key == InputKeyOk && event->type == InputTypePress) {
+        subghz_transmitter->callback(
+            SubGhzCustomEventViewTransmitterSendStart, subghz_transmitter->context);
+        return true;
+    } else if(can_be_sent && event->key == InputKeyOk && event->type == InputTypeRelease) {
+        subghz_transmitter->callback(
+            SubGhzCustomEventViewTransmitterSendStop, subghz_transmitter->context);
+        return true;
+    }
+
+    return true;
+}
+
+void subghz_view_transmitter_enter(void* context) {
+    furi_assert(context);
+}
+
+void subghz_view_transmitter_exit(void* context) {
+    furi_assert(context);
+}
+
+SubGhzViewTransmitter* subghz_view_transmitter_alloc() {
+    SubGhzViewTransmitter* subghz_transmitter = malloc(sizeof(SubGhzViewTransmitter));
+
+    // View allocation and configuration
+    subghz_transmitter->view = view_alloc();
+    view_allocate_model(
+        subghz_transmitter->view, ViewModelTypeLocking, sizeof(SubGhzViewTransmitterModel));
+    view_set_context(subghz_transmitter->view, subghz_transmitter);
+    view_set_draw_callback(
+        subghz_transmitter->view, (ViewDrawCallback)subghz_view_transmitter_draw);
+    view_set_input_callback(subghz_transmitter->view, subghz_view_transmitter_input);
+    view_set_enter_callback(subghz_transmitter->view, subghz_view_transmitter_enter);
+    view_set_exit_callback(subghz_transmitter->view, subghz_view_transmitter_exit);
+
+    with_view_model(
+        subghz_transmitter->view, (SubGhzViewTransmitterModel * model) {
+            string_init(model->frequency_str);
+            string_init(model->preset_str);
+            string_init(model->key_str);
+            return true;
+        });
+    return subghz_transmitter;
+}
+
+void subghz_view_transmitter_free(SubGhzViewTransmitter* subghz_transmitter) {
+    furi_assert(subghz_transmitter);
+
+    with_view_model(
+        subghz_transmitter->view, (SubGhzViewTransmitterModel * model) {
+            string_clear(model->frequency_str);
+            string_clear(model->preset_str);
+            string_clear(model->key_str);
+            return true;
+        });
+    view_free(subghz_transmitter->view);
+    free(subghz_transmitter);
+}
+
+View* subghz_view_transmitter_get_view(SubGhzViewTransmitter* subghz_transmitter) {
+    furi_assert(subghz_transmitter);
+    return subghz_transmitter->view;
+}