Remove all global variables

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.5)
 project(hello)
 
 SET(PEBBLE_FLAVOUR basalt)
-SET(PEBBLE_SDK_VER 3.13.1)
+SET(PEBBLE_SDK_VER 3.14)
 SET(PEBBLE_SDK "/opt/pebble-sdk")
 INCLUDE_DIRECTORIES("${PEBBLE_SDK}/.pebble-sdk/SDKs/${PEBBLE_SDK_VER}/sdk-core/pebble/${PEBBLE_FLAVOUR}/include")
 INCLUDE_DIRECTORIES("build/${PEBBLE_FLAVOUR}/src")
@@ -22,6 +22,8 @@ set(SOURCE_FILES
         src/windows/action/action_window.h
         src/windows/action/style.h
         src/layers/border_layer.c
-        src/layers/border_layer.h)
+        src/layers/border_layer.h
+        src/windows/action/action_menu_layer.c
+        src/windows/action/action_menu_layer.h src/windows/list/list_layer.c src/windows/list/list_layer.h)
 
 add_executable(hello ${SOURCE_FILES})

package.json

@@ -13,9 +13,7 @@
     "sdkVersion": "3",
     "enableMultiJS": true,
     "targetPlatforms": [
-      "aplite",
-      "basalt",
-      "chalk"
+      "basalt"
     ],
     "watchapp": {
       "watchface": false
@@ -25,26 +23,6 @@
     ],
     "resources": {
       "media": [
-        {
-          "type": "bitmap",
-          "name": "TICK_BLACK",
-          "file": "images/tick_black.png"
-        },
-        {
-          "type": "bitmap",
-          "name": "TICK_WHITE",
-          "file": "images/tick_white.png"
-        },
-        {
-          "type": "bitmap",
-          "name": "CROSS_WHITE",
-          "file": "images/cross_white.png"
-        },
-        {
-          "type": "bitmap",
-          "name": "CROSS_BLACK",
-          "file": "images/cross_black.png"
-        }
       ]
     }
   }

src/layers/border_layer.c

@@ -26,6 +26,7 @@ struct BorderLayer* get_data(const struct Layer *layer)
     return border;
 }
 
+// callback: LayerUpdateProc
 static void on_update(struct Layer *layer, GContext *context)
 {
     struct BorderLayer *border = get_data(layer);
@@ -39,12 +40,12 @@ static void on_update(struct Layer *layer, GContext *context)
     graphics_fill_rect(context, rect, 0, GCornerNone);
 }
 
-static struct Layer* create_layer(struct BorderLayer *border,
-                                  struct GRect frame)
+static struct Layer* create_raw_layer(struct BorderLayer *border,
+                                      struct GRect frame)
 {
     size_t data_region_size = sizeof(struct BorderLayer *);
     struct Layer *layer = layer_create_with_data(frame, data_region_size);
-    layer_set_update_proc(layer, on_update);
+    if(!layer) return NULL;
 
     struct BorderLayer **data_region = layer_get_data(layer);
     *data_region = border;
@@ -52,14 +53,36 @@ static struct Layer* create_layer(struct BorderLayer *border,
     return layer;
 }
 
-void BORDER_LAYER_init(struct BorderLayer *border, struct GRect frame)
+void BORDER_LAYER_add_to_layer(struct BorderLayer *border,
+                               struct Layer *root_layer)
 {
-    border->raw_layer = create_layer(border, frame);
-    border->color = GColorWhite;
-    border->width = 5;
+    struct Layer *raw_layer = border->raw_layer;
+    layer_add_child(root_layer, raw_layer);
+}
+
+struct BorderLayer *BORDER_LAYER_create(struct GRect frame)
+{
+    struct BorderLayer *border_layer = 0;
+
+    border_layer = (struct BorderLayer*) malloc(sizeof(struct BorderLayer));
+    if(!border_layer) return NULL;
+
+    struct Layer *raw_layer = create_raw_layer(border_layer, frame);
+    if(!raw_layer) return NULL;
+
+    layer_set_update_proc(raw_layer, on_update);
+
+    border_layer->raw_layer = raw_layer;
+    border_layer->color = GColorWhite;
+    border_layer->width = 5;
+
+    return border_layer;
 }
 
 void BORDER_LAYER_destroy(struct BorderLayer *border)
 {
+    if(!border) return;
+
     layer_destroy(border->raw_layer);
+    free(border);
 }

src/layers/border_layer.h

@@ -28,6 +28,9 @@ struct BorderLayer
     Layer *raw_layer;
 };
 
-void BORDER_LAYER_init(struct BorderLayer *border, struct GRect frame);
+void BORDER_LAYER_add_to_layer(struct BorderLayer *border,
+                               struct Layer *root_layer);
+
+struct BorderLayer *BORDER_LAYER_create(struct GRect frame);
 
 void BORDER_LAYER_destroy(struct BorderLayer *border);

src/main.c

@@ -22,7 +22,10 @@
 
 int main(void)
 {
-    LIST_WINDOW_push();
+    struct ListWindow *window = LIST_WINDOW_create();
+    window_stack_push(window->raw_window, true);
+
     app_event_loop();
-    LIST_WINDOW_destroy();
+
+    LIST_WINDOW_destroy(window);
 }

src/network.c

@@ -20,7 +20,6 @@
 #include <pebble.h>
 #include "network.h"
 #include "util.h"
-#include "windows/list/list_window.h"
 
 #define MAX_HABIT_COUNT 50
 static int HABIT_COUNT;
@@ -64,8 +63,8 @@ static int process_count(DictionaryIterator *iter)
 
     int count = tuple->value->int32;
 
-    rval = LIST_WINDOW_allocate(count);
-    abort_if(rval, "LIST_WINDOW_allocate failed");
+//    rval = LIST_WINDOW_allocate(count);
+//    abort_if(rval, "LIST_WINDOW_allocate failed");
 
     if(count > MAX_HABIT_COUNT) count = MAX_HABIT_COUNT;
     HABIT_COUNT = count;
@@ -82,23 +81,23 @@ static int process_habit(DictionaryIterator *iter)
 {
     int rval = 0;
 
-    // id
-    Tuple *tuple = dict_find(iter, 1);
-    abort_if(!tuple, "tuple is null");
-    int id = tuple->value->int32;
+//    // id
+//    Tuple *tuple = dict_find(iter, 1);
+//    abort_if(!tuple, "tuple is null");
+//    int id = tuple->value->int32;
+//
+//    // name
+//    tuple = dict_find(iter, 2);
+//    abort_if(!tuple, "tuple is null");
+//    char *name = tuple->value->cstring;
+//
+//    // checkmark value
+//    tuple = dict_find(iter, 3);
+//    abort_if(!tuple, "tuple is null");
+//    int checkmark = tuple->value->int32;
 
-    // name
-    tuple = dict_find(iter, 2);
-    abort_if(!tuple, "tuple is null");
-    char *name = tuple->value->cstring;
-
-    // checkmark value
-    tuple = dict_find(iter, 3);
-    abort_if(!tuple, "tuple is null");
-    int checkmark = tuple->value->int32;
-
-    rval = LIST_WINDOW_add_habit(id, name, checkmark);
-    abort_if(rval, "LIST_WINDOW_add_habit failed");
+//    rval = LIST_WINDOW_add_habit(id, name, checkmark);
+//    abort_if(rval, "LIST_WINDOW_add_habit failed");
 
     rval = request_next_habit();
     abort_if(rval, "request_next_habit failed");

src/windows/action/action_menu_layer.c

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker 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 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <pebble.h>
+#include "action_menu_layer.h"
+#include "style.h"
+
+const char *ACTIONS[] = {
+        "   Check",
+        "   View stats"
+};
+
+// callback: MenuLayerSelectCallback
+static void on_click(struct MenuLayer *menu_layer,
+                     MenuIndex *cell_index,
+                     void *callback_context)
+{
+    struct ActionMenuLayer *action_menu = callback_context;
+    if(!action_menu->callbacks.on_select) return;
+    action_menu->callbacks.on_select(action_menu->callback_context);
+}
+
+// MenuLayerGetNumberOfRowsInSectionsCallback
+static uint16_t on_get_num_rows(MenuLayer *menu_layer,
+                                uint16_t section_index,
+                                void *context)
+{
+    return 2;
+}
+
+// MenuLayerDrawRowCallback
+static void on_draw_row(GContext *ctx,
+                        const Layer *cell_layer,
+                        MenuIndex *cell_index,
+                        void *extra)
+{
+    int n = cell_index->row;
+    menu_cell_basic_draw(ctx, cell_layer, ACTIONS[n], NULL, NULL);
+}
+
+// MenuLayerGetCellHeightCallback
+static int16_t on_get_cell_height(struct MenuLayer *menu_layer,
+                                  MenuIndex *cell_index,
+                                  void *context)
+{
+    return CELL_HEIGHT;
+}
+
+static void set_menu_layer_callbacks(struct ActionMenuLayer *action_menu,
+                                     struct MenuLayer *menu)
+{
+    MenuLayerCallbacks callbacks = {
+            .get_num_rows = on_get_num_rows,
+            .draw_row = on_draw_row,
+            .get_cell_height = on_get_cell_height,
+            .select_click = on_click,
+    };
+
+    menu_layer_set_callbacks(menu, action_menu, callbacks);
+    menu_layer_set_highlight_colors(menu, HIGHLIGHT_BACKGROUND_COLOR,
+            HIGHLIGHT_FOREGROUND_COLOR);
+    menu_layer_set_normal_colors(menu, NORMAL_BACKGROUND_COLOR,
+            NORMAL_FOREGROUND_COLOR);
+}
+
+void ACTION_MENU_LAYER_add_to_layer(struct ActionMenuLayer *action_menu,
+                                    struct Layer *root_layer)
+{
+    struct Layer *raw_layer = menu_layer_get_layer(action_menu->menu_layer);
+    layer_add_child(root_layer, raw_layer);
+}
+
+void ACTION_MENU_LAYER_attach_to_window(struct ActionMenuLayer *action_menu,
+                                        struct Window *window)
+{
+    struct MenuLayer *menu = action_menu->menu_layer;
+    menu_layer_set_click_config_onto_window(menu, window);
+};
+
+struct ActionMenuLayer* ACTION_MENU_LAYER_create(struct GRect bounds)
+{
+    struct ActionMenuLayer *action_menu = 0;
+    action_menu = (struct ActionMenuLayer*) malloc(sizeof(struct ActionMenuLayer));
+    if(!action_menu) return NULL;
+
+    struct MenuLayer *menu = menu_layer_create(bounds);
+    if(!menu) return NULL;
+
+    set_menu_layer_callbacks(action_menu, menu);
+    action_menu->menu_layer = menu;
+
+    return action_menu;
+}
+
+void ACTION_MENU_LAYER_destroy(struct ActionMenuLayer *action_menu)
+{
+    if(!action_menu) return;
+    if(action_menu->menu_layer) menu_layer_destroy(action_menu->menu_layer);
+    free(action_menu);
+}

src/windows/action/action_menu_layer.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker 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 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker 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 <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+struct ActionMenuLayerCallbacks
+{
+    void (*on_select)(void *callback_context);
+};
+
+struct ActionMenuLayer
+{
+    struct MenuLayer *menu_layer;
+
+    void *callback_context;
+    struct ActionMenuLayerCallbacks callbacks;
+};
+
+void ACTION_MENU_LAYER_attach_to_window(struct ActionMenuLayer *action_menu,
+                                        struct Window *window);
+
+void ACTION_MENU_LAYER_add_to_layer(struct ActionMenuLayer *action_menu,
+                                    struct Layer *root_layer);
+
+void ACTION_MENU_LAYER_destroy(struct ActionMenuLayer *action_menu);
+
+struct ActionMenuLayer* ACTION_MENU_LAYER_create(struct GRect bounds);

src/windows/action/action_window.c

@@ -19,128 +19,108 @@
 
 #include <pebble.h>
 #include "action_window.h"
-#include "style.h"
 #include "../../layers/border_layer.h"
 #include "../../util.h"
+#include "action_menu_layer.h"
+#include "style.h"
 
-static struct Window *WINDOW = 0;
-static struct MenuLayer *MENU_LAYER = 0;
-static struct BorderLayer *BORDER_LAYER = 0;
-
-char *ACTIONS[] = { "   Check", "   View stats"};
-
-// DRAWING
-//------------------------------------------------------------------------------
-
-void draw_left_border(GContext *ctx, const Layer *cell_layer)
+static void on_select(void *callback_context)
 {
-    GRect bounds = layer_get_bounds(cell_layer);
-    GRect rect = GRect(bounds.origin.x, bounds.origin.y, 5, bounds.size.h);
-    graphics_context_set_fill_color(ctx, GColorFolly);
-    graphics_fill_rect(ctx, rect, 0, GCornerNone);
+    window_stack_pop(true);
 }
 
-// MENU LAYER CALLBACKS
-//------------------------------------------------------------------------------
-
-static uint16_t get_num_rows(MenuLayer *menu_layer,
-                             uint16_t section_index,
-                             void *context)
-{
-    return 2;
-}
-
-static void draw_row(GContext *ctx,
-                     const Layer *cell_layer,
-                     MenuIndex *cell_index,
-                     void *extra)
-{
-    int n = cell_index->row;
-    menu_cell_basic_draw(ctx, cell_layer, ACTIONS[n], NULL, NULL);
-    draw_left_border(ctx, cell_layer);
-}
-
-static int16_t get_cell_height(struct MenuLayer *menu_layer,
-                               MenuIndex *cell_index,
-                               void *context)
-{
-    return CELL_HEIGHT;
-}
-
-static void select_click(MenuLayer *menu_layer, MenuIndex *index, void *context)
-{
-}
-
-// WINDOWS HANDLERS
-//------------------------------------------------------------------------------
-
-void add_menu_layer(Window *window,
-                    Layer *root_layer,
-                    GRect bounds)
-{
-    MenuLayerCallbacks callbacks = {
-        .get_num_rows = get_num_rows,
-        .draw_row = draw_row,
-        .get_cell_height = get_cell_height,
-        .select_click = select_click,
-    };
-
-    MENU_LAYER = menu_layer_create(bounds);
-    menu_layer_set_click_config_onto_window(MENU_LAYER, window);
-    menu_layer_set_callbacks(MENU_LAYER, NULL, callbacks);
-    menu_layer_set_highlight_colors(MENU_LAYER, HIGHLIGHT_BACKGROUND_COLOR,
-        HIGHLIGHT_FOREGROUND_COLOR);
-    menu_layer_set_normal_colors(MENU_LAYER, NORMAL_BACKGROUND_COLOR,
-        NORMAL_FOREGROUND_COLOR);
-
-    layer_add_child(root_layer, menu_layer_get_layer(MENU_LAYER));
-}
-
-static int add_border_layer(Window *window, Layer *root_layer, GRect frame)
+static int add_menu_layer(struct ActionWindow *window,
+                          struct Layer *root_layer,
+                          struct GRect bounds)
 {
     int rval = 0;
 
-    BORDER_LAYER = (struct BorderLayer*) malloc(sizeof(struct BorderLayer));
-    abort_if(!BORDER_LAYER, "could not allocate BORDER_LAYER");
+    struct ActionMenuLayer *menu_layer = 0;
+    menu_layer = ACTION_MENU_LAYER_create(bounds);
+    abort_if(!menu_layer, "ACTION_MENU_LAYER_create failed");
 
-    BORDER_LAYER_init(BORDER_LAYER, frame);
-    BORDER_LAYER->color = GColorFolly;
+    window->menu_layer = menu_layer;
+    ACTION_MENU_LAYER_attach_to_window(menu_layer, window->raw_window);
+    ACTION_MENU_LAYER_add_to_layer(menu_layer, root_layer);
 
-    layer_add_child(root_layer, BORDER_LAYER->raw_layer);
+    menu_layer->callback_context = window;
+    menu_layer->callbacks = (struct ActionMenuLayerCallbacks) {
+            .on_select = on_select
+    };
 
 CLEANUP:
     return rval;
 }
 
-static void on_load(Window *window)
+static int add_border_layer(struct ActionWindow *window,
+                            struct Layer *root_layer,
+                            const struct GRect frame)
 {
-    Layer *root_layer = window_get_root_layer(window);
+    int rval = 0;
+
+    struct BorderLayer *border_layer = 0;
+
+    border_layer = BORDER_LAYER_create(frame);
+    abort_if(!border_layer, "BORDER_LAYER_create failed");
+
+    border_layer->color = BORDER_COLOR;
+    border_layer->width = BORDER_WIDTH;
+
+    window->border_layer = border_layer;
+    BORDER_LAYER_add_to_layer(border_layer, root_layer);
+
+CLEANUP:
+    return rval;
+}
+
+// callback: WindowHandler
+static void on_load(Window *raw_window)
+{
+    struct ActionWindow *window = window_get_user_data(raw_window);
+    Layer *root_layer = window_get_root_layer(raw_window);
     GRect bounds = layer_get_bounds(root_layer);
     add_menu_layer(window, root_layer, bounds);
     add_border_layer(window, root_layer, bounds);
 }
 
-static void on_unload(Window *window)
+// callback: WindowHandler
+static void on_unload(Window *raw_window)
 {
-    menu_layer_destroy(MENU_LAYER);
-    free(BORDER_LAYER);
+    struct ActionWindow *window = window_get_user_data(raw_window);
+    ACTION_MENU_LAYER_destroy(window->menu_layer);
+    BORDER_LAYER_destroy(window->border_layer);
 }
 
-//--------------------------------------------------------------------------------
-
-void ACTION_WINDOW_push()
+static void set_raw_window_handlers(Window *raw_window)
 {
     WindowHandlers handlers = {
-        .load = on_load,
-        .unload = on_unload
+            .load = on_load,
+            .unload = on_unload
     };
 
-    WINDOW = window_create();
-    window_set_window_handlers(WINDOW, handlers);
-    window_stack_push(WINDOW, true);
+    window_set_window_handlers(raw_window, handlers);
 }
 
-void ACTION_WINDOW_destroy()
+struct ActionWindow *ACTION_WINDOW_create()
 {
-    window_destroy(WINDOW);
+    struct ActionWindow *window = 0;
+
+    window = (struct ActionWindow*) malloc(sizeof(struct ActionWindow));
+    if(!window) return NULL;
+
+    Window *raw_window = window_create();
+    if(!raw_window) return NULL;
+
+    window->raw_window = raw_window;
+    window_set_user_data(raw_window, window);
+    set_raw_window_handlers(raw_window);
+
+    return window;
+}
+
+void ACTION_WINDOW_destroy(struct ActionWindow *window)
+{
+    if(!window) return;
+    window_destroy(window->raw_window);
+    free(window);
 }

src/windows/action/action_window.h

@@ -19,6 +19,15 @@
 
 #pragma once
 
-void ACTION_WINDOW_push();
+struct ActionWindow
+{
+    struct Window *raw_window;
 
-void ACTION_WINDOW_destroy();
+    struct ActionMenuLayer *menu_layer;
+
+    struct BorderLayer *border_layer;
+};
+
+struct ActionWindow* ACTION_WINDOW_create();
+
+void ACTION_WINDOW_destroy(struct ActionWindow *window);

src/windows/action/style.h

@@ -29,4 +29,8 @@
 
 #define NORMAL_FOREGROUND_COLOR GColorDarkGray
 
+#define BORDER_COLOR GColorFolly
+
+#define BORDER_WIDTH 10
+
 #define CELL_HEIGHT 36

src/windows/list/list_layer.c

@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker 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 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "list_layer.h"
+#include "style.h"
+#include "../../util.h"
+
+#define MAX_NAME_LENGTH 20
+
+static int free_habits(struct ListLayer *layer)
+{
+    for(int i = 0; i < layer->habit_count; i++) free(layer->habit_names[i]);
+    free(layer->habit_names);
+    free(layer->habit_checkmarks);
+    free(layer->habit_ids);
+    layer->habit_count = 0;
+
+    return 0;
+}
+
+int LIST_LAYER_allocate(struct ListLayer *layer, int count)
+{
+    int rval = 0;
+
+    free_habits(layer);
+
+    layer->habit_names = (char **) malloc(count * sizeof(char *));
+    abort_if(!layer->habit_names, "could not allocate habit_names");
+
+    for(int i = 0; i < count; i++)
+    {
+        layer->habit_names[i] = (char *) malloc(MAX_NAME_LENGTH * sizeof(char));
+        abort_if(!layer->habit_names[i], "could not allocate habit_names");
+    }
+
+    layer->habit_checkmarks = (int *) malloc(count * sizeof(int));
+    abort_if(!layer->habit_checkmarks, "could not allocate habit_checkmarks");
+
+    layer->habit_ids = (int *) malloc(count * sizeof(int));
+    abort_if(!layer->habit_ids, "could not allocate habit_ids");
+
+CLEANUP:
+    return rval;
+}
+
+int LIST_LAYER_add_habit(struct ListLayer *layer,
+                         int new_id,
+                         char *new_name,
+                         int new_checkmark)
+{
+    uint16_t count = layer->habit_count;
+
+    char *name = layer->habit_names[count];
+    strncpy(name, new_name, MAX_NAME_LENGTH);
+    menu_layer_reload_data(layer->menu_layer);
+
+    layer->habit_ids[count] = new_id;
+    layer->habit_checkmarks[count] = new_checkmark;
+    layer->habit_count++;
+
+    return 0;
+}
+
+static uint16_t get_num_rows(MenuLayer *menu_layer,
+                             uint16_t section_index,
+                             void *callback_context)
+{
+    struct ListLayer *list_layer = callback_context;
+    return list_layer->habit_count;
+}
+
+static void on_draw_row(GContext *ctx,
+                        const Layer *cell_layer,
+                        MenuIndex *cell_index,
+                        void *callback_context)
+{
+    int n = cell_index->row;
+    struct ListLayer *list_layer = callback_context;
+    char *name = list_layer->habit_names[n];
+
+    menu_cell_basic_draw(ctx, cell_layer, name, NULL, NULL);
+}
+
+static int16_t get_cell_height(struct MenuLayer *menu_layer,
+                               MenuIndex *cell_index,
+                               void *callback_context)
+{
+    return CELL_HEIGHT;
+}
+
+static void select_click(struct MenuLayer *menu_layer,
+                         struct MenuIndex *index,
+                         void *callback_context)
+{
+    struct ListLayer *list_layer = callback_context;
+    if(!list_layer->callbacks.on_select) return;
+
+    list_layer->callbacks.on_select(list_layer->callback_context);
+}
+
+static void request_list(void *context)
+{
+    struct ListLayer *layer = context;
+
+    LIST_LAYER_allocate(layer, 4);
+    LIST_LAYER_add_habit(layer, 0, "Wake up early", 0);
+    LIST_LAYER_add_habit(layer, 1, "Meditate", 1);
+    LIST_LAYER_add_habit(layer, 2, "Exercise", 1);
+    LIST_LAYER_add_habit(layer, 3, "Go to school", 0);
+}
+
+static void set_menu_layer_callbacks(struct ListLayer *list_layer,
+                                     MenuLayer *menu_layer)
+{
+    MenuLayerCallbacks callbacks = {
+            .get_num_rows = get_num_rows,
+            .draw_row = on_draw_row,
+            .get_cell_height = get_cell_height,
+            .select_click = select_click,
+    };
+
+    menu_layer_set_callbacks(menu_layer, list_layer, callbacks);
+}
+
+static void set_menu_layer_styles(MenuLayer *menu_layer)
+{
+    menu_layer_set_highlight_colors(menu_layer, HIGHLIGHT_BACKGROUND_COLOR,
+            HIGHLIGHT_FOREGROUND_COLOR);
+    menu_layer_set_normal_colors(menu_layer, NORMAL_BACKGROUND_COLOR,
+            NORMAL_FOREGROUND_COLOR);
+}
+
+void LIST_LAYER_attach_to_window(struct ListLayer *layer, struct Window *window)
+{
+    menu_layer_set_click_config_onto_window(layer->menu_layer, window);
+    app_timer_register(500, request_list, layer);
+}
+
+void LIST_LAYER_add_to_layer(struct ListLayer *layer, struct Layer *root_layer)
+{
+    struct Layer *raw_layer = menu_layer_get_layer(layer->menu_layer);
+    layer_add_child(root_layer, raw_layer);
+}
+
+struct ListLayer* LIST_LAYER_create(struct GRect bounds)
+{
+    struct ListLayer *list_layer = 0;
+    list_layer = (struct ListLayer*) malloc(sizeof(struct ListLayer));
+    if(!list_layer) return NULL;
+
+    MenuLayer *menu_layer = menu_layer_create(bounds);
+    if(!menu_layer) return NULL;
+    set_menu_layer_styles(menu_layer);
+    set_menu_layer_callbacks(list_layer, menu_layer);
+    list_layer->menu_layer = menu_layer;
+
+    list_layer->habit_count = 0;
+
+    return list_layer;
+}
+
+void LIST_LAYER_destroy(struct ListLayer *list_layer)
+{
+    if(!list_layer) return;
+    free_habits(list_layer);
+    menu_layer_destroy(list_layer->menu_layer);
+    free(list_layer);
+}

src/windows/list/list_layer.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker 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 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker 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 <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <pebble.h>
+
+struct ListLayerCallbacks
+{
+    void (*on_select)(void *callback_context);
+};
+
+struct ListLayer
+{
+    uint16_t habit_count;
+    char **habit_names;
+    int *habit_ids;
+    int *habit_checkmarks;
+
+    struct MenuLayer *menu_layer;
+    struct ActionWindow *action_window;
+
+    void *callback_context;
+    struct ListLayerCallbacks callbacks;
+};
+
+void LIST_LAYER_attach_to_window(struct ListLayer *layer, struct Window *window);
+
+void LIST_LAYER_add_to_layer(struct ListLayer *layer, struct Layer *root_layer);
+
+struct ListLayer* LIST_LAYER_create(struct GRect bounds);
+
+void LIST_LAYER_destroy(struct ListLayer *layer);

src/windows/list/list_window.c

@@ -18,212 +18,73 @@
  */
 
 #include <pebble.h>
-#include "../../network.h"
-#include "../../util.h"
 #include "list_window.h"
 #include "../action/action_window.h"
-#include "style.h"
+#include "list_layer.h"
 
-static Window *WINDOW = 0;
-static MenuLayer *MENU_LAYER = 0;
-
-static uint16_t HABIT_COUNT = 0;
-static char **HABIT_NAMES = 0;
-static int *HABIT_IDS = 0;
-static int *HABIT_CHECKMARKS = 0;
-static size_t MAX_NAME_LENGTH = 20;
-
-static GBitmap *TICK_WHITE;
-static GBitmap *TICK_BLACK;
-static GBitmap *CROSS_BLACK;
-static GBitmap *CROSS_WHITE;
-
-int LIST_WINDOW_allocate(int count);
-
-int LIST_WINDOW_add_habit(int new_id, char *new_name, int new_checkmark);
-
-void free_habits()
+static void on_select(void *callback_context)
 {
-    HABIT_COUNT = 0;
-    for (int i = 0; i < HABIT_COUNT; i++) free(HABIT_NAMES[i]);
-    free(HABIT_NAMES);
-    free(HABIT_IDS);
+    struct ListWindow *window = callback_context;
+    LIST_WINDOW_show_action_window(window);
 }
 
-// MENU LAYER CALLBACKS
-//------------------------------------------------------------------------------
-
-static uint16_t get_num_rows(MenuLayer *menu_layer,
-                             uint16_t section_index,
-                             void *context)
+// callback: WindowHandler
+static void on_load(Window *raw_window)
 {
-    return HABIT_COUNT;
-}
-
-GBitmap *getTickBitmap(int highlighted)
-{
-    return highlighted ? TICK_WHITE : TICK_BLACK;
-}
-
-GBitmap *getCrossBitmap(int highlighted)
-{
-    return highlighted ? CROSS_WHITE : CROSS_BLACK;
-}
-
-GBitmap *getIcon(int is_checked, int is_highlighted)
-{
-    if(is_checked == 0) return getCrossBitmap(is_highlighted);
-    else return getTickBitmap(is_highlighted);
-}
-
-static void draw_row(GContext *ctx,
-                     const Layer *cell_layer,
-                     MenuIndex *cell_index,
-                     void *context)
-{
-    int n = cell_index->row;
-    char *name = HABIT_NAMES[n];
-    int is_checked = HABIT_CHECKMARKS[n];
-    int is_highlighted = menu_cell_layer_is_highlighted(cell_layer);
-
-    GBitmap *icon = getIcon(is_checked, is_highlighted);
-    menu_cell_basic_draw(ctx, cell_layer, name, NULL, NULL);
-}
-
-static int16_t get_cell_height(struct MenuLayer *menu_layer,
-                               MenuIndex *cell_index,
-                               void *context)
-{
-    return CELL_HEIGHT;
-}
-
-static void select_click(MenuLayer *menu_layer, MenuIndex *index, void *context)
-{
-    int n = index->row;
-    int id = HABIT_IDS[n];
-//    NETWORK_request_toggle(id);
-
-    ACTION_WINDOW_push();
-}
-
-static void request_list(void *context)
-{
-    LIST_WINDOW_allocate(5);
-    LIST_WINDOW_add_habit(0, "Wake up early", 0);
-    LIST_WINDOW_add_habit(1, "Meditate", 1);
-    LIST_WINDOW_add_habit(2, "Exercise", 1);
-    LIST_WINDOW_add_habit(3, "Go to school", 0);
-
-    NETWORK_request_list();
-}
-
-// WINDOWS HANDLERS
-//------------------------------------------------------------------------------
-
-static void on_load(Window *window)
-{
-    Layer *root_layer = window_get_root_layer(window);
+    Layer *root_layer = window_get_root_layer(raw_window);
     GRect bounds = layer_get_bounds(root_layer);
+    struct ListWindow *window = window_get_user_data(raw_window);
 
-    MenuLayerCallbacks callbacks = {
-        .get_num_rows = get_num_rows,
-        .draw_row = draw_row,
-        .get_cell_height = get_cell_height,
-        .select_click = select_click,
+    window->list_layer = LIST_LAYER_create(bounds);
+    LIST_LAYER_attach_to_window(window->list_layer, raw_window);
+    LIST_LAYER_add_to_layer(window->list_layer, root_layer);
+
+    window->list_layer->callback_context = window;
+    window->list_layer->callbacks = (struct ListLayerCallbacks) {
+            .on_select = on_select
     };
-
-    MENU_LAYER = menu_layer_create(bounds);
-    menu_layer_set_click_config_onto_window(MENU_LAYER, window);
-    menu_layer_set_callbacks(MENU_LAYER, NULL, callbacks);
-    menu_layer_set_highlight_colors(MENU_LAYER, HIGHLIGHT_BACKGROUND_COLOR,
-        HIGHLIGHT_FOREGROUND_COLOR);
-    menu_layer_set_normal_colors(MENU_LAYER, NORMAL_BACKGROUND_COLOR,
-        NORMAL_FOREGROUND_COLOR);
-
-    layer_add_child(root_layer, menu_layer_get_layer(MENU_LAYER));
-    app_timer_register(500, request_list, 0);
 }
 
-static void on_unload(Window *window)
+// callback: WindowHandler
+static void on_unload(Window *raw_window)
 {
-    menu_layer_destroy(MENU_LAYER);
+    struct ListWindow *list_window = window_get_user_data(raw_window);
+    LIST_LAYER_destroy(list_window->list_layer);
+    ACTION_WINDOW_destroy(list_window->action_window);
 }
 
-//--------------------------------------------------------------------------------
-
-int LIST_WINDOW_allocate(int count)
+void LIST_WINDOW_show_action_window(struct ListWindow *window)
 {
-    int rval = 0;
+    ACTION_WINDOW_destroy(window->action_window);
 
-    if(HABIT_COUNT > 0) free_habits();
+    window->action_window = ACTION_WINDOW_create();
+    if(!window->action_window) return;
 
-    HABIT_NAMES = (char**) malloc(count * sizeof(char*));
-    abort_if(!HABIT_NAMES, "could not allocate HABIT_NAMES");
-
-    for(int i = 0; i < count; i++)
-    {
-        HABIT_NAMES[i] = (char*) malloc(MAX_NAME_LENGTH * sizeof(char));
-        abort_iff(!HABIT_NAMES[i], "could not allocate HABIT_NAMES[%d]", i);
-    }
-
-    HABIT_CHECKMARKS = (int *) malloc(count * sizeof(int));
-    abort_if(!HABIT_CHECKMARKS, "could not allocate HABIT_CHECKMARKS");
-
-    HABIT_IDS = (int *) malloc(count * sizeof(int));
-    abort_if(!HABIT_IDS, "could not allocate HABIT_IDS");
-
-CLEANUP:
-    return rval;
+    window_stack_push(window->action_window->raw_window, true);
 }
 
-int LIST_WINDOW_add_habit(int new_id, char *new_name, int new_checkmark)
+struct ListWindow *LIST_WINDOW_create()
 {
-    char *name = HABIT_NAMES[HABIT_COUNT];
-    strncpy(name, new_name, MAX_NAME_LENGTH);
-    menu_layer_reload_data(MENU_LAYER);
-
-    HABIT_IDS[HABIT_COUNT] = new_id;
-    HABIT_CHECKMARKS[HABIT_COUNT] = new_checkmark;
-    HABIT_COUNT++;
-
-    return 0;
-}
-
-void create_bitmaps()
-{
-    CROSS_BLACK = gbitmap_create_with_resource(RESOURCE_ID_CROSS_BLACK);
-    CROSS_WHITE = gbitmap_create_with_resource(RESOURCE_ID_CROSS_WHITE);
-    TICK_WHITE = gbitmap_create_with_resource(RESOURCE_ID_TICK_WHITE);
-    TICK_BLACK = gbitmap_create_with_resource(RESOURCE_ID_TICK_BLACK);
-}
-
-void free_bitmaps()
-{
-    gbitmap_destroy(CROSS_BLACK);
-    gbitmap_destroy(CROSS_WHITE);
-    gbitmap_destroy(TICK_WHITE);
-    gbitmap_destroy(TICK_BLACK);
-}
-
-void LIST_WINDOW_push()
-{
-    NETWORK_register();
-
-    create_bitmaps();
-
     WindowHandlers handlers = {
         .load = on_load,
         .unload = on_unload
     };
 
-    WINDOW = window_create();
-    window_set_window_handlers(WINDOW, handlers);
-    window_stack_push(WINDOW, true);
+    struct ListWindow *list_window = 0;
+    list_window = (struct ListWindow*) malloc(sizeof(struct ListWindow));
+    if(!list_window) return NULL;
+
+    Window *raw_window = window_create();
+    window_set_user_data(raw_window, list_window);
+    window_set_window_handlers(raw_window, handlers);
+    list_window->raw_window = raw_window;
+
+    return list_window;
 }
 
-void LIST_WINDOW_destroy()
+void LIST_WINDOW_destroy(struct ListWindow *list_window)
 {
-    free_bitmaps();
-    free_habits();
-    window_destroy(WINDOW);
+    if(!list_window) return;
+    window_destroy(list_window->raw_window);
+    free(list_window);
 }

src/windows/list/list_window.h

@@ -19,10 +19,15 @@
 
 #pragma once
 
-void LIST_WINDOW_push();
+struct ListWindow
+{
+    struct Window *raw_window;
+    struct ListLayer *list_layer;
+    struct ActionWindow *action_window;
+};
 
-void LIST_WINDOW_destroy();
+void LIST_WINDOW_show_action_window(struct ListWindow *window);
 
-int LIST_WINDOW_allocate(int count);
+struct ListWindow *LIST_WINDOW_create();
 
-int LIST_WINDOW_add_habit(int new_id, char *new_checkmark, int i);
+void LIST_WINDOW_destroy(struct ListWindow *window);