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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2012 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.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#import "window.h"
#import "menu.h"
#import "toolbar.h"
#import "container.h"
#import <ucx/mempool.h>
#import "../common/context.h"

static int window_default_width = 600;
static int window_default_height = 500;

@implementation UiCocoaWindow

- (UiCocoaWindow*) init: (NSRect)frame object: (UiObject*)obj {
    self = [self initWithContentRect:frame
                           styleMask:NSTitledWindowMask |
                                     NSResizableWindowMask |
                                     NSClosableWindowMask |
                                     NSMiniaturizableWindowMask
                             backing:NSBackingStoreBuffered
                               defer:false];
    
    uiobj = obj;
    UcxAllocator *allocator = uiobj->ctx->mempool->allocator;
    menus = ucx_map_new_a(allocator, 8);
    items = ucx_map_new_a(allocator, 64);
    
    return self;
}

- (UiObject*) object {
    return uiobj;
}

- (void)  setObject:(UiObject*)obj {
    uiobj = obj;
}

- (void) setMenuItems:(UcxList*)menuItems {
    UcxAllocator *allocator = uiobj->ctx->mempool->allocator;
    
    UCX_FOREACH(elm, menuItems) {
        UiStateItem *item = elm->data;
        NSMenu *menu = [item->item menu];
        
        // create UiMenuItem which represents an NSMenuItem for a Window
        UiMenuItem *windowItem = ucx_mempool_malloc(uiobj->ctx->mempool, sizeof(UiMenuItem));
        windowItem->item = item->item;
        windowItem->state = 0;
        if(item->var) {
            // bind value
            UiVar *var = uic_connect_var(uiobj->ctx, item->var, UI_VAR_INTEGER);
            if(var) {
                UiInteger *value = var->value;
                value->obj = windowItem;
                value->get = ui_menuitem_get;
                value->set = ui_menuitem_set;
                value = 0;
            } else {
                // TODO: error
            }
        }
        
        // add item
        UiAbstractMenuItem *abstractItem = malloc(sizeof(UiAbstractMenuItem));
        abstractItem->update = ui_update_item;
        abstractItem->item_data = windowItem;
        UcxList *itemList = ucx_map_get(menus, ucx_key(&menu, sizeof(void*)));
        itemList = ucx_list_append_a(allocator, itemList, abstractItem);
        ucx_map_put(menus, ucx_key(&menu, sizeof(void*)), itemList);
        
        ucx_map_put(items, ucx_key(&windowItem->item, sizeof(void*)), windowItem);
    }
}

- (void) setMenuItemLists:(UcxList*)itemLists {
    UcxAllocator *allocator = uiobj->ctx->mempool->allocator;
    
    UCX_FOREACH(elm, itemLists) {
        UiMenuItemList *list = elm->data;
        
        UiAbstractMenuItem *abstractItem = malloc(sizeof(UiAbstractMenuItem));
        abstractItem->update = ui_update_item_list;
        abstractItem->item_data = list;
        
        UcxList *itemList = ucx_map_get(menus, ucx_key(&list->menu, sizeof(void*)));
        itemList = ucx_list_append_a(allocator, itemList, abstractItem);
        ucx_map_put(menus, ucx_key(&list->menu, sizeof(void*)), itemList);
        
    }
}

- (UiMenuItem*) getMenuItem:(NSMenuItem*)item {
    return ucx_map_get(items, ucx_key(&item, sizeof(void*)));
}

- (void) updateMenu:(NSMenu*)menu {
    UcxList *itemList = ucx_map_get(menus, ucx_key(&menu, sizeof(void*)));
    UCX_FOREACH(elm, itemList) {
        UiAbstractMenuItem *item = elm->data;
        item->update(self, item->item_data);
    }
    
    // update group items
    // TODO: use only one loop for all items
    int ngroups = 0;
    int *groups = ui_active_groups(uiobj->ctx, &ngroups);
    
    NSArray *groupItems = [menu itemArray];
    int count = [groupItems count];
    for(int i=0;i<count;i++) {
        id item = [groupItems objectAtIndex:i];
        if([item class] == [UiGroupMenuItem class]) {
            [item checkGroups: groups count:ngroups];
        }
    }
    free(groups);
}

@end


/* ------------------------------ public API ------------------------------ */

UiObject* ui_window(char *title, void *window_data) {
    UcxMempool *mp = ucx_mempool_new(256);
    UiObject *obj = ucx_mempool_calloc(mp, 1, sizeof(UiObject));
    obj->ctx = uic_context(obj, mp);
    
    // create native window
    NSRect frame = NSMakeRect(
                              300,
                              200,
                              window_default_width,
                              window_default_height);
    
    /*
    UiCocoaWindow *window = [[UiCocoaWindow alloc] initWithContentRect:frame
                                styleMask:NSTitledWindowMask | NSResizableWindowMask |
                                NSClosableWindowMask | NSMiniaturizableWindowMask
                                backing:NSBackingStoreBuffered
                                defer:false];
    */
    UiCocoaWindow *window = [[UiCocoaWindow alloc] init:frame object:obj];
    
    NSString *titleStr = [[NSString alloc] initWithUTF8String:title];
    [window setTitle:titleStr];
    
    UiMenuDelegate *menuDelegate = ui_menu_delegate();
    [window setMenuItems: [menuDelegate items]];
    [window setMenuItemLists: [menuDelegate lists]];
    
    NSToolbar *toolbar = ui_create_toolbar(obj);
    [window setToolbar: toolbar];
    
    obj->widget = (NSView*)window;
    obj->window = window_data;
    obj->container = ui_window_container(obj, window);
    
    
    return obj;
}

void ui_close(UiObject *obj) {
    // TODO
}

char* ui_openfiledialog(UiObject *obj) {
    NSOpenPanel* op = [NSOpenPanel openPanel];
    if ([op runModal] == NSOKButton) {
        NSArray *urls = [op URLs];
        NSURL *url = [urls objectAtIndex:0];
        
        const char *str = [[url path] UTF8String];
        return (char*)strdup(str);
    }
    return NULL;
}

char* ui_savefiledialog(UiObject *obj) {
    NSSavePanel* sp = [NSSavePanel savePanel];
    if ([sp runModal] == NSOKButton) {
        NSURL *url = [sp URL];
        
        const char *str = [[url path] UTF8String];
        return (char*)strdup(str);
    }
    return NULL;
}