TabViewController.c

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/*
 * ObjectivelyMVC: Object oriented MVC framework for OpenGL, SDL2 and GNU C.
 * Copyright (C) 2014 Jay Dolan <jay@jaydolan.com>
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 *
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 *
 * 3. This notice may not be removed or altered from any source distribution.
 */
 
#include <assert.h>
 
#include "TabViewController.h"
 
#define _Class _TabViewController
 
#pragma mark - Object
 
static void dealloc(Object *self) {
 
    TabViewController *this = (TabViewController *) self;
 
    release(this->tabView);
 
    super(Object, self, dealloc);
}
 
#pragma mark - ViewController
 
static void loadView(ViewController *self) {
 
    super(ViewController, self, loadView);
 
    self->view->autoresizingMask = ViewAutoresizingContain;
 
    TabViewController *this = (TabViewController *) self;
 
    this->tabView = $(alloc(TabView), initWithFrame, NULL);
    assert(this->tabView);
 
    this->tabView->delegate.self = this;
 
    $(self->view, addSubview, (View *) this->tabView);
}
 
static void addChildViewController(ViewController *self, ViewController *childViewController) {
 
    super(ViewController, self, addChildViewController, childViewController);
 
    TabViewController *this = (TabViewController *) self;
 
    TabViewItem *tab = $(alloc(TabViewItem), initWithView, childViewController->view);
 
    $(this->tabView, addTab, tab);
 
    release(tab);
}
 
static void removeChildViewController(ViewController *self, ViewController *childViewController) {
 
    super(ViewController, self, removeChildViewController, childViewController);
 
    TabViewController *this = (TabViewController *) self;
 
    TabViewItem *tab = $(this, tabForViewController, childViewController);
 
    $(this->tabView, removeTab, tab);
}
 
#pragma mark - TabViewController
 
static TabViewController *init(TabViewController *self) {
    return (TabViewController *) super(ViewController, self, init);
}
 
static _Bool tabForViewController_predicate(const ident obj, ident data) {
    return ((TabViewItem *) obj)->view == data;
}
 
static TabViewItem *tabForViewController(const TabViewController *self, const ViewController *viewController) {
 
    assert(viewController);
 
    if (viewController->view) {
        return $((Array *) self->tabView->tabs, findObject, tabForViewController_predicate, (ident) viewController->view);
    }
 
    return NULL;
}
 
#pragma mark - Class lifecycle
 
static void initialize(Class *clazz) {
 
    ((ObjectInterface *) clazz->interface)->dealloc = dealloc;
 
    ((ViewControllerInterface *) clazz->interface)->loadView = loadView;
    ((ViewControllerInterface *) clazz->interface)->addChildViewController = addChildViewController;
    ((ViewControllerInterface *) clazz->interface)->removeChildViewController = removeChildViewController;
 
    ((TabViewControllerInterface *) clazz->interface)->init = init;
    ((TabViewControllerInterface *) clazz->interface)->tabForViewController = tabForViewController;
}
 
Class *_TabViewController(void) {
    static Class *clazz;
    static Once once;
 
    do_once(&once, {
        clazz = _initialize(&(const ClassDef) {
            .name = "TabViewController",
            .superclass = _ViewController(),
            .instanceSize = sizeof(TabViewController),
            .interfaceOffset = offsetof(TabViewController, interface),
            .interfaceSize = sizeof(TabViewControllerInterface),
            .initialize = initialize,
        });
    });
 
    return clazz;
}
 
#undef _Class