src/video/cocoa/SDL_cocoamessagebox.m
author Ryan C. Gordon
Mon, 23 Jan 2017 12:06:10 -0500
changeset 10837 c2f241c2f6ad
parent 10737 3406a0f8b041
child 11144 cccd37a9c28b
permissions -rw-r--r--
audio: Fix same bug as last commit, but for _mm_bslli_si128 vs _mm_slli_si128.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2017 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         [alert beginSheetModalForWindow:nswindow modalDelegate:self didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:) contextInfo:nil];
    61         while (clicked < 0) {
    62             SDL_PumpEvents();
    63             SDL_Delay(100);
    64         }
    65         [nswindow release];
    66     } else {
    67         clicked = [alert runModal];
    68     }
    69 }
    70 
    71 - (void) alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
    72 {
    73     clicked = returnCode;
    74 }
    75 
    76 @end
    77 
    78 
    79 /* Display a Cocoa message box */
    80 int
    81 Cocoa_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
    82 { @autoreleasepool
    83 {
    84     Cocoa_RegisterApp();
    85 
    86     NSAlert* alert = [[[NSAlert alloc] init] autorelease];
    87 
    88     if (messageboxdata->flags & SDL_MESSAGEBOX_ERROR) {
    89         [alert setAlertStyle:NSCriticalAlertStyle];
    90     } else if (messageboxdata->flags & SDL_MESSAGEBOX_WARNING) {
    91         [alert setAlertStyle:NSWarningAlertStyle];
    92     } else {
    93         [alert setAlertStyle:NSInformationalAlertStyle];
    94     }
    95 
    96     [alert setMessageText:[NSString stringWithUTF8String:messageboxdata->title]];
    97     [alert setInformativeText:[NSString stringWithUTF8String:messageboxdata->message]];
    98 
    99     const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons;
   100     int i;
   101     for (i = 0; i < messageboxdata->numbuttons; ++i) {
   102         NSButton *button = [alert addButtonWithTitle:[NSString stringWithUTF8String:buttons[i].text]];
   103         if (buttons[i].flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) {
   104             [button setKeyEquivalent:@"\r"];
   105         } else if (buttons[i].flags & SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT) {
   106             [button setKeyEquivalent:@"\033"];
   107         } else {
   108             [button setKeyEquivalent:@""];
   109         }
   110     }
   111 
   112     SDLMessageBoxPresenter* presenter = [[[SDLMessageBoxPresenter alloc] initWithParentWindow:messageboxdata->window] autorelease];
   113 
   114     [presenter performSelectorOnMainThread:@selector(showAlert:)
   115                                 withObject:alert
   116                              waitUntilDone:YES];
   117 
   118     int returnValue = 0;
   119     NSInteger clicked = presenter->clicked;
   120     if (clicked >= NSAlertFirstButtonReturn) {
   121         clicked -= NSAlertFirstButtonReturn;
   122         *buttonid = buttons[clicked].buttonid;
   123     } else {
   124         returnValue = SDL_SetError("Did not get a valid `clicked button' id: %ld", (long)clicked);
   125     }
   126 
   127     return returnValue;
   128 }}
   129 
   130 #endif /* SDL_VIDEO_DRIVER_COCOA */
   131 
   132 /* vi: set ts=4 sw=4 expandtab: */