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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2014 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#import <stdio.h>
#import <stdlib.h>
#import <string.h>
#import <stdarg.h>
#import <objc/runtime.h>

#import "menu.h"
#import "window.h"
#import "EventData.h"

#pragma GCC diagnostic ignored "-Wundeclared-selector"
#pragma clang diagnostic ignored "-Wundeclared-selector"

// holds all items that need bindings
// value type: MenuItem*
static NSMutableArray *bindingItems;

@implementation MenuItem

- (MenuItem*)init:(int)itId {
    self.itemId = [[NSString alloc] initWithFormat:@"item%d", itId];
    return self;
}

@end

static ui_menu_add_f createMenuItem[] = {
    /* UI_MENU                 */ add_menu_widget,
    /* UI_MENU_ITEM            */ add_menuitem_widget,
    /* UI_MENU_CHECK_ITEM      */ add_checkitem_widget,
    /* UI_MENU_RADIO_ITEM      */ add_radioitem_widget,
    /* UI_MENU_ITEM_LIST       */ add_menuitem_list_widget,
    /* UI_MENU_CHECKITEM_LIST  */ add_menuitem_list_widget,
    /* UI_MENU_RADIOITEM_LIST  */ add_menuitem_list_widget,
    /* UI_MENU_SEPARATOR       */ add_menuseparator_widget
};

static void add_menu_items(NSMenu *parent, int i, UiMenu *menu) {
    UiMenuItemI *it = menu->items_begin;
    int index = 0;
    while(it) {
        createMenuItem[it->type](parent, index, it);
        it = it->next;
        index++;
    }
}

void add_menu_widget(NSMenu *parent, int i, UiMenuItemI *item) {
    UiMenu *it = (UiMenu*)item;
    NSString *str = [[NSString alloc] initWithUTF8String:it->label];
    NSMenu *menu = [[NSMenu alloc] initWithTitle: str];
    NSMenuItem *menuItem = [parent addItemWithTitle:str action:nil keyEquivalent:@""];
    [parent setSubmenu:menu forItem:menuItem];
    
    add_menu_items(menu, i, it);
}

void add_menuitem_widget(NSMenu *parent, int i, UiMenuItemI *item) {
    UiMenuItem *it = (UiMenuItem*)item;
    
    NSString *str = [[NSString alloc] initWithUTF8String:it->label];
    NSMenuItem *menuItem = [parent addItemWithTitle:str action:@selector(menuItemAction:) keyEquivalent:@""];
    
    if(it->callback) {
        EventData *event = [[EventData alloc] init:it->callback userdata:it->userdata];
        objc_setAssociatedObject(menuItem, "eventdata", event, OBJC_ASSOCIATION_RETAIN);
    }
}

void add_menuseparator_widget(NSMenu *parent, int i, UiMenuItemI *item) {
    NSMenuItem *menuItem = [NSMenuItem separatorItem];
    [parent addItem:menuItem];
}

static int nItem = 0;

void add_checkitem_widget(NSMenu *parent, int i, UiMenuItemI *item) {
    UiMenuCheckItem *it = (UiMenuCheckItem*)item;
    
    NSString *str = [[NSString alloc] initWithUTF8String:it->label];
    NSMenuItem *menuItem = [parent addItemWithTitle:str action:@selector(menuCheckItemAction:) keyEquivalent:@""];
    
    MenuItem *mItem = [[MenuItem alloc] init:nItem++];
    mItem.callback = it->callback;
    mItem.userdata = it->userdata;
    mItem.checkItem = it;
    
    objc_setAssociatedObject(menuItem, "menuitem", mItem, OBJC_ASSOCIATION_RETAIN);
    [bindingItems addObject:mItem];
}

void add_radioitem_widget(NSMenu *parent, int index, UiMenuItemI *item) {
    UiMenuRadioItem *it = (UiMenuRadioItem*)item;
    
    NSString *str = [[NSString alloc] initWithUTF8String:it->label];
    NSMenuItem *menuItem = [parent addItemWithTitle:str action:@selector(menuRadioItemAction:) keyEquivalent:@""];
    
    MenuItem *mItem = [[MenuItem alloc] init:nItem++];
    mItem.callback = it->callback;
    mItem.userdata = it->userdata;
    mItem.radioItem = it;
    
    objc_setAssociatedObject(menuItem, "menuitem", mItem, OBJC_ASSOCIATION_RETAIN);
    [bindingItems addObject:mItem];
}

void add_checkitemnv_widget(NSMenu *parent, int i, UiMenuItemI *item) {
    
}

void add_menuitem_list_widget(NSMenu *parent, int i, UiMenuItemI *item) {
    
}


void ui_menu_init(void) {
    bindingItems = [[NSMutableArray alloc] init];
    
    UiMenu *menus_begin = uic_get_menu_list();
    UiMenu *ls = menus_begin;
    int index = 1;
    while(ls) {
        if(ls->item.type == UI_MENU) {
            NSString *str = [[NSString alloc] initWithUTF8String:ls->label];
            NSMenu *menu = [[NSMenu alloc] initWithTitle: str];
            NSMenuItem *menuItem = [[NSApp mainMenu] insertItemWithTitle:str action:nil keyEquivalent:@"" atIndex:index];
            [[NSApp mainMenu] setSubmenu:menu forItem:menuItem];
            
            add_menu_items(menu, 0, ls);
        }
        ls = (UiMenu*)ls->item.next;
        index++;
    }
}

NSArray* ui_get_binding_items(void) {
    return bindingItems;
}