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[Qemu-devel] [PULL 1/3] ui/cocoa.m: verify with user before quitting QEM
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 1/3] ui/cocoa.m: verify with user before quitting QEMU |
Date: |
Fri, 25 Sep 2015 23:18:50 +0100 |
From: John Arbuckle <address@hidden>
This patch prevents the user from accidentally quitting QEMU by pushing
Command-Q or by pushing the close button on the main window. When
the user does one of these two things, a dialog box appears verifying
with the user if he or she wants to quit QEMU.
Signed-off-by: John Arbuckle <address@hidden>
Message-id: address@hidden
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Peter Maydell <address@hidden>
---
ui/cocoa.m | 39 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 38 insertions(+), 1 deletion(-)
diff --git a/ui/cocoa.m b/ui/cocoa.m
index c24d9f9..7c64e1a 100644
--- a/ui/cocoa.m
+++ b/ui/cocoa.m
@@ -809,7 +809,7 @@ QemuCocoaView *cocoaView;
*/
@interface QemuCocoaAppController : NSObject
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6)
- <NSApplicationDelegate>
+ <NSWindowDelegate,
NSApplicationDelegate>
#endif
{
}
@@ -829,6 +829,7 @@ QemuCocoaView *cocoaView;
- (void)powerDownQEMU:(id)sender;
- (void)ejectDeviceMedia:(id)sender;
- (void)changeDeviceMedia:(id)sender;
+- (BOOL)verifyQuit;
@end
@implementation QemuCocoaAppController
@@ -862,6 +863,7 @@ QemuCocoaView *cocoaView;
#endif
[normalWindow makeKeyAndOrderFront:self];
[normalWindow center];
+ [normalWindow setDelegate: self];
stretch_video = false;
/* Used for displaying pause on the screen */
@@ -933,6 +935,26 @@ QemuCocoaView *cocoaView;
return YES;
}
+- (NSApplicationTerminateReply)applicationShouldTerminate:
+ (NSApplication
*)sender
+{
+ COCOA_DEBUG("QemuCocoaAppController: applicationShouldTerminate\n");
+ return [self verifyQuit];
+}
+
+/* Called when the user clicks on a window's close button */
+- (BOOL)windowShouldClose:(id)sender
+{
+ COCOA_DEBUG("QemuCocoaAppController: windowShouldClose\n");
+ [NSApp terminate: sender];
+ /* If the user allows the application to quit then the call to
+ * NSApp terminate will never return. If we get here then the user
+ * cancelled the quit, so we should return NO to not permit the
+ * closing of this window.
+ */
+ return NO;
+}
+
- (void)startEmulationWithArgc:(int)argc argv:(char**)argv
{
COCOA_DEBUG("QemuCocoaAppController: startEmulationWithArgc\n");
@@ -1125,6 +1147,21 @@ QemuCocoaView *cocoaView;
}
}
+/* Verifies if the user really wants to quit */
+- (BOOL)verifyQuit
+{
+ NSAlert *alert = [NSAlert new];
+ [alert autorelease];
+ [alert setMessageText: @"Are you sure you want to quit QEMU?"];
+ [alert addButtonWithTitle: @"Cancel"];
+ [alert addButtonWithTitle: @"Quit"];
+ if([alert runModal] == NSAlertSecondButtonReturn) {
+ return YES;
+ } else {
+ return NO;
+ }
+}
+
@end
--
1.9.1