66 lines
2.5 KiB
Text
66 lines
2.5 KiB
Text
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// Copyright (c) 2013 GitHub, Inc. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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#import "browser/nsalert_synchronous_sheet.h"
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// Private methods -- use prefixes to avoid collisions with Apple's methods
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@interface NSAlert (SynchronousSheetPrivate)
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-(IBAction) BE_stopSynchronousSheet:(id)sender; // hide sheet & stop modal
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-(void) BE_beginSheetModalForWindow:(NSWindow *)aWindow;
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@end
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@implementation NSAlert (SynchronousSheet)
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-(NSInteger) runModalSheetForWindow:(NSWindow *)aWindow {
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// Set ourselves as the target for button clicks
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for (NSButton *button in [self buttons]) {
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[button setTarget:self];
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[button setAction:@selector(BE_stopSynchronousSheet:)];
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}
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// Bring up the sheet and wait until stopSynchronousSheet is triggered by a button click
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[self performSelectorOnMainThread:@selector(BE_beginSheetModalForWindow:) withObject:aWindow waitUntilDone:YES];
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NSInteger modalCode = [NSApp runModalForWindow:[self window]];
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// This is called only after stopSynchronousSheet is called (that is,
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// one of the buttons is clicked)
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[NSApp performSelectorOnMainThread:@selector(endSheet:) withObject:[self window] waitUntilDone:YES];
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// Remove the sheet from the screen
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[[self window] performSelectorOnMainThread:@selector(orderOut:) withObject:self waitUntilDone:YES];
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return modalCode;
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}
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-(NSInteger) runModalSheet {
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return [self runModalSheetForWindow:[NSApp mainWindow]];
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}
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#pragma mark Private methods
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-(IBAction) BE_stopSynchronousSheet:(id)sender {
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// See which of the buttons was clicked
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NSUInteger clickedButtonIndex = [[self buttons] indexOfObject:sender];
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// Be consistent with Apple's documentation (see NSAlert's addButtonWithTitle) so that
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// the fourth button is numbered NSAlertThirdButtonReturn + 1, and so on
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NSInteger modalCode = 0;
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if (clickedButtonIndex == NSAlertFirstButtonReturn)
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modalCode = NSAlertFirstButtonReturn;
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else if (clickedButtonIndex == NSAlertSecondButtonReturn)
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modalCode = NSAlertSecondButtonReturn;
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else if (clickedButtonIndex == NSAlertThirdButtonReturn)
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modalCode = NSAlertThirdButtonReturn;
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else
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modalCode = NSAlertThirdButtonReturn + (clickedButtonIndex - 2);
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[NSApp stopModalWithCode:modalCode];
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}
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-(void) BE_beginSheetModalForWindow:(NSWindow *)aWindow {
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[self beginSheetModalForWindow:aWindow modalDelegate:nil didEndSelector:nil contextInfo:nil];
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}
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@end
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