1/* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2021 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 92static void 93Cocoa_ShowMessageBoxImpl(const SDL_MessageBoxData *messageboxdata, int *buttonid, int *returnValue) 94{ 95 Cocoa_RegisterApp(); 96 97 NSAlert* alert = [[[NSAlert alloc] init] autorelease]; 98 99 if (messageboxdata->flags & SDL_MESSAGEBOX_ERROR) { 100 [alert setAlertStyle:NSAlertStyleCritical]; 101 } else if (messageboxdata->flags & SDL_MESSAGEBOX_WARNING) { 102 [alert setAlertStyle:NSAlertStyleWarning]; 103 } else { 104 [alert setAlertStyle:NSAlertStyleInformational]; 105 } 106 107 [alert setMessageText:[NSString stringWithUTF8String:messageboxdata->title]]; 108 [alert setInformativeText:[NSString stringWithUTF8String:messageboxdata->message]]; 109 110 const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons; 111 int i; 112 for (i = 0; i < messageboxdata->numbuttons; ++i) { 113 const SDL_MessageBoxButtonData *sdlButton; 114 NSButton *button; 115 116 if (messageboxdata->flags & SDL_MESSAGEBOX_BUTTONS_RIGHT_TO_LEFT) { 117 sdlButton = &messageboxdata->buttons[messageboxdata->numbuttons - 1 - i]; 118 } else { 119 sdlButton = &messageboxdata->buttons[i]; 120 } 121 122 button = [alert addButtonWithTitle:[NSString stringWithUTF8String:sdlButton->text]]; 123 if (sdlButton->flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) { 124 [button setKeyEquivalent:@"\r"]; 125 } else if (sdlButton->flags & SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT) { 126 [button setKeyEquivalent:@"\033"]; 127 } else { 128 [button setKeyEquivalent:@""]; 129 } 130 } 131 132 SDLMessageBoxPresenter* presenter = [[[SDLMessageBoxPresenter alloc] initWithParentWindow:messageboxdata->window] autorelease]; 133 134 [presenter showAlert:alert]; 135 136 NSInteger clicked = presenter->clicked; 137 if (clicked >= NSAlertFirstButtonReturn) { 138 clicked -= NSAlertFirstButtonReturn; 139 if (messageboxdata->flags & SDL_MESSAGEBOX_BUTTONS_RIGHT_TO_LEFT) { 140 clicked = messageboxdata->numbuttons - 1 - clicked; 141 } 142 *buttonid = buttons[clicked].buttonid; 143 *returnValue = 0; 144 } else { 145 *returnValue = SDL_SetError("Did not get a valid `clicked button' id: %ld", (long)clicked); 146 } 147} 148 149/* Display a Cocoa message box */ 150int 151Cocoa_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid) 152{ @autoreleasepool 153{ 154 __block int returnValue = 0; 155 156 if ([NSThread isMainThread]) { 157 Cocoa_ShowMessageBoxImpl(messageboxdata, buttonid, &returnValue); 158 } else { 159 dispatch_sync(dispatch_get_main_queue(), ^{ Cocoa_ShowMessageBoxImpl(messageboxdata, buttonid, &returnValue); }); 160 } 161 return returnValue; 162}} 163 164#endif /* SDL_VIDEO_DRIVER_COCOA */ 165 166/* vi: set ts=4 sw=4 expandtab: */ 167