1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4
5  This software is provided 'as-is', without any express or implied
6  warranty.  In no event will the authors be held liable for any damages
7  arising from the use of this software.
8
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12
13  1. The origin of this software must not be misrepresented; you must not
14     claim that you wrote the original software. If you use this software
15     in a product, an acknowledgment in the product documentation would be
16     appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18     misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20*/
21#include "../../SDL_internal.h"
22
23#if SDL_VIDEO_DRIVER_COCOA
24
25#include "SDL_events.h"
26#include "SDL_timer.h"
27#include "SDL_messagebox.h"
28#include "SDL_cocoavideo.h"
29
30@interface SDLMessageBoxPresenter : NSObject {
31@public
32    NSInteger clicked;
33    NSWindow *nswindow;
34}
35- (id) initWithParentWindow:(SDL_Window *)window;
36- (void) alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo;
37@end
38
39@implementation SDLMessageBoxPresenter
40- (id) initWithParentWindow:(SDL_Window *)window
41{
42    self = [super init];
43    if (self) {
44        clicked = -1;
45
46        /* Retain the NSWindow because we'll show the alert later on the main thread */
47        if (window) {
48            nswindow = [((SDL_WindowData *) window->driverdata)->nswindow retain];
49        } else {
50            nswindow = NULL;
51        }
52    }
53
54    return self;
55}
56
57- (void)showAlert:(NSAlert*)alert
58{
59    if (nswindow) {
60#ifdef MAC_OS_X_VERSION_10_9
61        if ([alert respondsToSelector:@selector(beginSheetModalForWindow:completionHandler:)]) {
62            [alert beginSheetModalForWindow:nswindow completionHandler:^(NSModalResponse returnCode) {
63                clicked = returnCode;
64            }];
65        } else
66#endif
67        {
68#if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
69            [alert beginSheetModalForWindow:nswindow modalDelegate:self didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:) contextInfo:nil];
70#endif
71        }
72
73        while (clicked < 0) {
74            SDL_PumpEvents();
75            SDL_Delay(100);
76        }
77
78        [nswindow release];
79    } else {
80        clicked = [alert runModal];
81    }
82}
83
84- (void) alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
85{
86    clicked = returnCode;
87}
88
89@end
90
91
92/* Display a Cocoa message box */
93int
94Cocoa_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
95{ @autoreleasepool
96{
97    Cocoa_RegisterApp();
98
99    NSAlert* alert = [[[NSAlert alloc] init] autorelease];
100
101    if (messageboxdata->flags & SDL_MESSAGEBOX_ERROR) {
102        [alert setAlertStyle:NSAlertStyleCritical];
103    } else if (messageboxdata->flags & SDL_MESSAGEBOX_WARNING) {
104        [alert setAlertStyle:NSAlertStyleWarning];
105    } else {
106        [alert setAlertStyle:NSAlertStyleInformational];
107    }
108
109    [alert setMessageText:[NSString stringWithUTF8String:messageboxdata->title]];
110    [alert setInformativeText:[NSString stringWithUTF8String:messageboxdata->message]];
111
112    const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons;
113    int i;
114    for (i = 0; i < messageboxdata->numbuttons; ++i) {
115        NSButton *button = [alert addButtonWithTitle:[NSString stringWithUTF8String:buttons[i].text]];
116        if (buttons[i].flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) {
117            [button setKeyEquivalent:@"\r"];
118        } else if (buttons[i].flags & SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT) {
119            [button setKeyEquivalent:@"\033"];
120        } else {
121            [button setKeyEquivalent:@""];
122        }
123    }
124
125    SDLMessageBoxPresenter* presenter = [[[SDLMessageBoxPresenter alloc] initWithParentWindow:messageboxdata->window] autorelease];
126
127    [presenter performSelectorOnMainThread:@selector(showAlert:)
128                                withObject:alert
129                             waitUntilDone:YES];
130
131    int returnValue = 0;
132    NSInteger clicked = presenter->clicked;
133    if (clicked >= NSAlertFirstButtonReturn) {
134        clicked -= NSAlertFirstButtonReturn;
135        *buttonid = buttons[clicked].buttonid;
136    } else {
137        returnValue = SDL_SetError("Did not get a valid `clicked button' id: %ld", (long)clicked);
138    }
139
140    return returnValue;
141}}
142
143#endif /* SDL_VIDEO_DRIVER_COCOA */
144
145/* vi: set ts=4 sw=4 expandtab: */
146