[FL-1549] Gui Widget module (#598)

* gui_widget: rework with mlib container
* widget: rename gui_widget-> widget; gui_element->widget_element
* gui: move widget from nfc to gui/modules
* nfc: rework widget usage
* nfc: return to ReadEmvAppSuccess scene after ReadEmvDataSuccess exit

Co-authored-by: あく <alleteam@gmail.com>

applications/gui/modules/widget_elements/widget_element_button.c

@@ -0,0 +1,79 @@
+#include "widget_element_i.h"
+#include <gui/elements.h>
+#include <m-string.h>
+
+typedef struct {
+    GuiButtonType button_type;
+    string_t text;
+    ButtonCallback callback;
+    void* context;
+} GuiButtonModel;
+
+static void gui_button_draw(Canvas* canvas, WidgetElement* element) {
+    furi_assert(canvas);
+    furi_assert(element);
+    GuiButtonModel* model = element->model;
+
+    canvas_set_color(canvas, ColorBlack);
+    canvas_set_font(canvas, FontSecondary);
+
+    if(model->button_type == GuiButtonTypeLeft) {
+        elements_button_left(canvas, string_get_cstr(model->text));
+    } else if(model->button_type == GuiButtonTypeRight) {
+        elements_button_right(canvas, string_get_cstr(model->text));
+    } else if(model->button_type == GuiButtonTypeCenter) {
+        elements_button_center(canvas, string_get_cstr(model->text));
+    }
+}
+
+static bool gui_button_input(InputEvent* event, WidgetElement* element) {
+    GuiButtonModel* model = element->model;
+    bool consumed = false;
+
+    if((event->type == InputTypeShort) && model->callback) {
+        if((model->button_type == GuiButtonTypeLeft) && (event->key == InputKeyLeft)) {
+            model->callback(model->button_type, model->context);
+            consumed = true;
+        } else if((model->button_type == GuiButtonTypeRight) && (event->key == InputKeyRight)) {
+            model->callback(model->button_type, model->context);
+            consumed = true;
+        } else if((model->button_type == GuiButtonTypeCenter) && (event->key == InputKeyOk)) {
+            model->callback(model->button_type, model->context);
+            consumed = true;
+        }
+    }
+
+    return consumed;
+}
+
+static void gui_button_free(WidgetElement* gui_button) {
+    furi_assert(gui_button);
+
+    GuiButtonModel* model = gui_button->model;
+    string_clear(model->text);
+    free(gui_button->model);
+    free(gui_button);
+}
+
+WidgetElement* widget_element_button_create(
+    GuiButtonType button_type,
+    const char* text,
+    ButtonCallback callback,
+    void* context) {
+    // Allocate and init model
+    GuiButtonModel* model = furi_alloc(sizeof(GuiButtonModel));
+    model->button_type = button_type;
+    model->callback = callback;
+    model->context = context;
+    string_init_set_str(model->text, text);
+
+    // Allocate and init Element
+    WidgetElement* gui_button = furi_alloc(sizeof(WidgetElement));
+    gui_button->parent = NULL;
+    gui_button->input = gui_button_input;
+    gui_button->draw = gui_button_draw;
+    gui_button->free = gui_button_free;
+    gui_button->model = model;
+
+    return gui_button;
+}

applications/gui/modules/widget_elements/widget_element_i.h

@@ -0,0 +1,48 @@
+#pragma once
+#include <furi.h>
+#include <gui/view.h>
+
+typedef enum {
+    GuiButtonTypeLeft,
+    GuiButtonTypeCenter,
+    GuiButtonTypeRight,
+} GuiButtonType;
+
+typedef void (*ButtonCallback)(GuiButtonType result, void* context);
+
+typedef struct WidgetElement WidgetElement;
+typedef struct Widget Widget;
+
+struct WidgetElement {
+    // generic draw and input callbacks
+    void (*draw)(Canvas* canvas, WidgetElement* element);
+    bool (*input)(InputEvent* event, WidgetElement* element);
+
+    // free callback
+    void (*free)(WidgetElement* element);
+
+    // generic model holder
+    void* model;
+
+    // pointer to widget that hold our element
+    Widget* parent;
+};
+
+/* Create string element */
+WidgetElement* widget_element_string_create(
+    uint8_t x,
+    uint8_t y,
+    Align horizontal,
+    Align vertical,
+    Font font,
+    const char* text);
+
+/* Create button element */
+WidgetElement* widget_element_button_create(
+    GuiButtonType button_type,
+    const char* text,
+    ButtonCallback callback,
+    void* context);
+
+/* Create icon element element */
+WidgetElement* widget_element_icon_create(uint8_t x, uint8_t y, const Icon* icon);

applications/gui/modules/widget_elements/widget_element_icon.c

@@ -0,0 +1,45 @@
+#include "widget_element_i.h"
+#include <m-string.h>
+
+typedef struct {
+    uint8_t x;
+    uint8_t y;
+    const Icon* icon;
+} GuiIconModel;
+
+static void gui_icon_draw(Canvas* canvas, WidgetElement* element) {
+    furi_assert(canvas);
+    furi_assert(element);
+    GuiIconModel* model = element->model;
+
+    if(model->icon) {
+        canvas_draw_icon(canvas, model->x, model->y, model->icon);
+    }
+}
+
+static void gui_icon_free(WidgetElement* gui_icon) {
+    furi_assert(gui_icon);
+
+    free(gui_icon->model);
+    free(gui_icon);
+}
+
+WidgetElement* widget_element_icon_create(uint8_t x, uint8_t y, const Icon* icon) {
+    furi_assert(icon);
+
+    // Allocate and init model
+    GuiIconModel* model = furi_alloc(sizeof(GuiIconModel));
+    model->x = x;
+    model->y = y;
+    model->icon = icon;
+
+    // Allocate and init Element
+    WidgetElement* gui_icon = furi_alloc(sizeof(WidgetElement));
+    gui_icon->parent = NULL;
+    gui_icon->input = NULL;
+    gui_icon->draw = gui_icon_draw;
+    gui_icon->free = gui_icon_free;
+    gui_icon->model = model;
+
+    return gui_icon;
+}

applications/gui/modules/widget_elements/widget_element_string.c

@@ -0,0 +1,66 @@
+#include "widget_element_i.h"
+#include <m-string.h>
+
+typedef struct {
+    uint8_t x;
+    uint8_t y;
+    Align horizontal;
+    Align vertical;
+    Font font;
+    string_t text;
+} GuiStringModel;
+
+static void gui_string_draw(Canvas* canvas, WidgetElement* element) {
+    furi_assert(canvas);
+    furi_assert(element);
+    GuiStringModel* model = element->model;
+
+    if(string_size(model->text)) {
+        canvas_set_font(canvas, model->font);
+        canvas_draw_str_aligned(
+            canvas,
+            model->x,
+            model->y,
+            model->horizontal,
+            model->vertical,
+            string_get_cstr(model->text));
+    }
+}
+
+static void gui_string_free(WidgetElement* gui_string) {
+    furi_assert(gui_string);
+
+    GuiStringModel* model = gui_string->model;
+    string_clear(model->text);
+    free(gui_string->model);
+    free(gui_string);
+}
+
+WidgetElement* widget_element_string_create(
+    uint8_t x,
+    uint8_t y,
+    Align horizontal,
+    Align vertical,
+    Font font,
+    const char* text) {
+    furi_assert(text);
+
+    // Allocate and init model
+    GuiStringModel* model = furi_alloc(sizeof(GuiStringModel));
+    model->x = x;
+    model->y = y;
+    model->horizontal = horizontal;
+    model->vertical = vertical;
+    model->font = font;
+    string_init_set_str(model->text, text);
+
+    // Allocate and init Element
+    WidgetElement* gui_string = furi_alloc(sizeof(WidgetElement));
+    gui_string->parent = NULL;
+    gui_string->input = NULL;
+    gui_string->draw = gui_string_draw;
+    gui_string->free = gui_string_free;
+    gui_string->model = model;
+
+    return gui_string;
+}