/*
 * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf 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; version 2 of the License.
 *
 * NetSurf 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/>.
 */

#import "cocoa/FormSelectMenu.h"
#import "cocoa/coordinates.h"

#import "utils/utils.h"
#import "netsurf/browser_window.h"
#import "netsurf/form.h"

static inline NSRect cocoa_rect_for_control( struct browser_window *bw, struct form_control *control)
{
        struct rect r;
        form_control_bounding_rect(control, &r);
        return cocoa_scaled_rect(browser_window_get_scale(bw),
                                 r.x0,
                                 r.y0,
                                 r.x1,
                                 r.y1);
}

@interface FormSelectMenu ()

- (void) itemSelected: (id) sender;

@end


@implementation FormSelectMenu

- (id) initWithControl: (struct form_control *) c forWindow: (struct browser_window *) w
{
        if ((self = [super init]) == nil) return nil;

        control = c;
        browser = w;

        menu = [[NSMenu alloc] initWithTitle: @"Select"];
        if (menu == nil) {
                [self release];
                return nil;
        }

        [menu addItemWithTitle: @"" action: NULL keyEquivalent: @""];

        NSInteger currentItemIndex = 0;
        struct form_option *opt;
        for (opt = form_select_get_option(control, 0);
             opt != NULL;
             opt = opt->next) {
                NSMenuItem *item = [[NSMenuItem alloc] initWithTitle: [NSString stringWithUTF8String: opt->text]
                                                              action: @selector( itemSelected: )
                                                       keyEquivalent: @""];
                if (opt->selected) {
                        [item setState: NSOnState];
                }
                [item setTarget: self];
                [item setTag: currentItemIndex++];
                [menu addItem: item];
                [item release];
        }

        [menu setDelegate: self];

        return self;
}

- (void) dealloc
{
        [cell release];
        [menu release];

        [super dealloc];
}

- (void) runInView: (NSView *) view
{
        [self retain];

        cell = [[NSPopUpButtonCell alloc] initTextCell: @"" pullsDown: YES];
        [cell setMenu: menu];

        const NSRect rect = cocoa_rect_for_control(browser, control);

        [cell attachPopUpWithFrame: rect inView: view];
        [cell performClickWithFrame: rect inView: view];
}

- (void) itemSelected: (id) sender
{
        form_select_process_selection( control, [sender tag] );
}

- (void) menuDidClose: (NSMenu *) sender
{
        [self release];
}

@end