146 lines
4.6 KiB
Objective-C
146 lines
4.6 KiB
Objective-C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#if SDL_VIDEO_DRIVER_COCOA
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#include "SDL_cocoavideo.h"
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@interface SDLMessageBoxPresenter : NSObject
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{
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@public
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NSInteger clicked;
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NSWindow *nswindow;
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}
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- (id)initWithParentWindow:(SDL_Window *)window;
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@end
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@implementation SDLMessageBoxPresenter
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- (id)initWithParentWindow:(SDL_Window *)window
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{
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self = [super init];
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if (self) {
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clicked = -1;
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/* Retain the NSWindow because we'll show the alert later on the main thread */
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if (window) {
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nswindow = window->driverdata.nswindow;
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} else {
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nswindow = nil;
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}
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}
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return self;
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}
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- (void)showAlert:(NSAlert *)alert
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{
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if (nswindow) {
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[alert beginSheetModalForWindow:nswindow
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completionHandler:^(NSModalResponse returnCode) {
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[NSApp stopModalWithCode:returnCode];
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}];
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clicked = [NSApp runModalForWindow:nswindow];
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nswindow = nil;
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} else {
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clicked = [alert runModal];
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}
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}
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@end
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static void Cocoa_ShowMessageBoxImpl(const SDL_MessageBoxData *messageboxdata, int *buttonid, int *returnValue)
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{
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NSAlert *alert;
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const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons;
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SDLMessageBoxPresenter *presenter;
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NSInteger clicked;
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int i;
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Cocoa_RegisterApp();
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alert = [[NSAlert alloc] init];
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if (messageboxdata->flags & SDL_MESSAGEBOX_ERROR) {
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[alert setAlertStyle:NSAlertStyleCritical];
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} else if (messageboxdata->flags & SDL_MESSAGEBOX_WARNING) {
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[alert setAlertStyle:NSAlertStyleWarning];
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} else {
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[alert setAlertStyle:NSAlertStyleInformational];
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}
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[alert setMessageText:[NSString stringWithUTF8String:messageboxdata->title]];
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[alert setInformativeText:[NSString stringWithUTF8String:messageboxdata->message]];
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for (i = 0; i < messageboxdata->numbuttons; ++i) {
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const SDL_MessageBoxButtonData *sdlButton;
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NSButton *button;
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if (messageboxdata->flags & SDL_MESSAGEBOX_BUTTONS_RIGHT_TO_LEFT) {
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sdlButton = &messageboxdata->buttons[messageboxdata->numbuttons - 1 - i];
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} else {
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sdlButton = &messageboxdata->buttons[i];
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}
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button = [alert addButtonWithTitle:[NSString stringWithUTF8String:sdlButton->text]];
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if (sdlButton->flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) {
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[button setKeyEquivalent:@"\r"];
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} else if (sdlButton->flags & SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT) {
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[button setKeyEquivalent:@"\033"];
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} else {
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[button setKeyEquivalent:@""];
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}
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}
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presenter = [[SDLMessageBoxPresenter alloc] initWithParentWindow:messageboxdata->window];
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[presenter showAlert:alert];
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clicked = presenter->clicked;
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if (clicked >= NSAlertFirstButtonReturn) {
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clicked -= NSAlertFirstButtonReturn;
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if (messageboxdata->flags & SDL_MESSAGEBOX_BUTTONS_RIGHT_TO_LEFT) {
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clicked = messageboxdata->numbuttons - 1 - clicked;
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}
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*buttonid = buttons[clicked].buttonid;
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*returnValue = 0;
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} else {
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*returnValue = SDL_SetError("Did not get a valid `clicked button' id: %ld", (long)clicked);
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}
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}
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/* Display a Cocoa message box */
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int Cocoa_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
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{
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@autoreleasepool {
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__block int returnValue = 0;
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if ([NSThread isMainThread]) {
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Cocoa_ShowMessageBoxImpl(messageboxdata, buttonid, &returnValue);
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} else {
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dispatch_sync(dispatch_get_main_queue(), ^{
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Cocoa_ShowMessageBoxImpl(messageboxdata, buttonid, &returnValue);
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});
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}
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return returnValue;
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}
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}
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#endif /* SDL_VIDEO_DRIVER_COCOA */
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