Check for accessibility permissions

dteoh · Jun 16, 2018 · 2488436 · 2488436
1 parent d3e35ac
commit 2488436
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Showing 3 changed files with 22 additions and 0 deletions.
diff --git a/SlowQuitApps/SQAAppDelegate.m b/SlowQuitApps/SQAAppDelegate.m
@@ -28,6 +28,13 @@ - (id)init {
 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
     SQADialogs *dialogs = [[SQADialogs alloc] init];
 
+    if (!hasAccessibility()) {
+        [dialogs informAccessibilityRequirement];
+        // If we terminate now, the special accesibility alert/dialog
+        // from the framework/OS will dissappear immediately.
+        return;
+    }
+
     if ([self registerGlobalHotkey]) {
         [dialogs askAboutAutoStart];
 
@@ -90,6 +97,11 @@ - (void)cmdQPressed {
     return NULL;
 }
 
+BOOL hasAccessibility() {
+    NSDictionary *options = @{(__bridge id)kAXTrustedCheckOptionPrompt: @YES};
+    return AXIsProcessTrustedWithOptions((__bridge CFDictionaryRef)options);
+}
+
 BOOL shouldHandleCmdQ() {
     NSRunningApplication *activeApp = findActiveApp();
     if (activeApp == NULL) {

diff --git a/SlowQuitApps/SQADialogs.h b/SlowQuitApps/SQADialogs.h
@@ -4,5 +4,6 @@
 
 - (void)askAboutAutoStart;
 - (void)informHotkeyRegistrationFailure;
+- (void)informAccessibilityRequirement;
 
 @end
diff --git a/SlowQuitApps/SQADialogs.m b/SlowQuitApps/SQADialogs.m
@@ -84,4 +84,13 @@ - (void)informHotkeyRegistrationFailure {
     [alert runModal];
 }
 
+- (void)informAccessibilityRequirement {
+    NSAlert *alert = [[NSAlert alloc] init];
+    alert.alertStyle = NSAlertStyleInformational;
+    alert.messageText = NSLocalizedString(@"SlowQuitApps requires permissions to control your computer", nil);
+    alert.informativeText = NSLocalizedString(@"SlowQuitApps needs accessibility permissions to handle ⌘Q.\r\rAfter adding SlowQuitApps to System Preferences -> Security & Privacy -> Privacy -> Accessibility, please restart the app.", nil);
+    [alert addButtonWithTitle:NSLocalizedString(@"OK", nil)];
+    [alert runModal];
+}
+
 @end