我已經想出了一個答案，使用@Willeke答案使用AXUIElementCopyElementAtPosition()來獲取菜單。由於有多個碼頭方向和隱藏，我在.h文件中創建枚舉，因爲它會更容易閱讀比0，1，或2
// .h
typedef enum {
kDockPositionBottom,
kDockPositionLeft,
kDockPositionRight,
kDockPositionUnknown
} DockPosition;
typedef enum {
kDockAutohideOn,
kDockAutohideOff
} DockAutoHideState;
然後，我添加方法來獲取這些在.m
// .m
- (DockPosition)dockPosition
{
NSRect screenRect = [[NSScreen mainScreen] frame];
NSRect visibleRect = [[NSScreen mainScreen] visibleFrame];
// Dont need to remove menubar height
visibleRect.origin.y = 0;
if (visibleRect.origin.x > screenRect.origin.x) {
return kDockPositionLeft;
} else if (visibleRect.size.width < screenRect.size.width) {
return kDockPositionRight;
} else if (visibleRect.size.height < screenRect.size.height) {
return kDockPositionBottom;
}
return kDockPositionUnknown;
}
- (DockAutoHideState)dockHidden
{
NSString *plistPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Library/Preferences/com.apple.dock.plist"];
NSDictionary *dockDict = [NSDictionary dictionaryWithContentsOfFile:plistPath];
CFBooleanRef autohide = CFDictionaryGetValue((__bridge CFDictionaryRef)dockDict, @"autohide");
if (CFBooleanGetValue(autohide) == true) {
return kDockAutohideOn;
}
return kDockAutohideOff;
}
對於未知的碼頭位置的狀態，我的情況下添加它無法從屏幕位置計算。
然後，我用一個方法來獲得從菜單欄碼頭項目：
- (AXUIElementRef)getDockItemWithName:(NSString *)name
{
NSArray *anArray = [NSRunningApplication runningApplicationsWithBundleIdentifier:@"com.apple.dock"];
AXUIElementRef anAXDockApp = AXUIElementCreateApplication([[anArray objectAtIndex:0] processIdentifier]);
AXUIElementRef aList = [self copyAXUIElementFrom:anAXDockApp role:kAXListRole atIndex:0];
CFTypeRef aChildren;
AXUIElementCopyAttributeValue(aList, kAXChildrenAttribute, &aChildren);
NSInteger itemIndex = -1;
for (NSInteger i = 0; i < CFArrayGetCount(aChildren); i++) {
AXUIElementRef anElement = CFArrayGetValueAtIndex(aChildren, i);
CFTypeRef aResult;
AXUIElementCopyAttributeValue(anElement, kAXTitleAttribute, &aResult);
if ([(__bridge NSString *)aResult isEqualToString:name]) {
itemIndex = i;
}
}
SafeCFRelease(aChildren);
if (itemIndex == -1) return nil;
// We have index now do something with it
AXUIElementRef aReturnItem = [self copyAXUIElementFrom:aList role:kAXDockItemRole atIndex:itemIndex];
SafeCFRelease(aList);
return aReturnItem;
}
這SafeCFRelease()方法來檢查，如果傳遞的值不爲零，然後釋放一個非常簡單的方法（有一些問題更早）。
void SafeCFRelease(CFTypeRef cf)
{
if (cf) CFRelease(cf);
}
這種方法[copyAXUIElementFrom: role: atIndex:]是@Willeke回答我的問題另外一個方法：
- (AXUIElementRef)copyAXUIElementFrom:(AXUIElementRef)theContainer role:(CFStringRef)theRole atIndex:(NSInteger)theIndex {
AXUIElementRef aResultElement = NULL;
CFTypeRef aChildren;
AXError anAXError = AXUIElementCopyAttributeValue(theContainer, kAXChildrenAttribute, &aChildren);
if (anAXError == kAXErrorSuccess) {
NSUInteger anIndex = -1;
for (id anElement in (__bridge NSArray *)aChildren) {
if (theRole) {
CFTypeRef aRole;
anAXError = AXUIElementCopyAttributeValue((__bridge AXUIElementRef)anElement, kAXRoleAttribute, &aRole);
if (anAXError == kAXErrorSuccess) {
if (CFStringCompare(aRole, theRole, 0) == kCFCompareEqualTo)
anIndex++;
SafeCFRelease(aRole);
}
}
else
anIndex++;
if (anIndex == theIndex) {
aResultElement = (AXUIElementRef)CFRetain((__bridge CFTypeRef)(anElement));
break;
}
}
SafeCFRelease(aChildren);
}
return aResultElement;
}
考慮這些代碼，我把它放到我的方法之一：
//檢查是否在碼頭（否則不能這樣做）
if ([self isAppOfNameInDock:[appDict objectForKey:@"AppName"]]) {
// Get dock item
AXUIElementRef aDockItem = [self getDockItemWithName:[appDict objectForKey:@"AppName"]];
AXUIElementPerformAction(aDockItem, kAXShowMenuAction);
[NSThread sleepForTimeInterval:0.5];
CGRect aRect;
CFTypeRef aPosition;
AXUIElementCopyAttributeValue(aDockItem, kAXPositionAttribute, &aPosition);
AXValueGetValue(aPosition, kAXValueCGPointType, &aRect.origin);
SafeCFRelease(aPosition);
CFTypeRef aSize;
AXUIElementCopyAttributeValue(aDockItem, kAXSizeAttribute, &aSize);
AXValueGetValue(aSize, kAXValueCGSizeType, &aRect.size);
SafeCFRelease(aSize);
SafeCFRelease(aDockItem);
CGPoint aMenuPoint;
if ([self dockHidden] == kDockAutohideOff) {
switch ([self dockPosition]) {
case kDockPositionRight:
aMenuPoint = CGPointMake(aRect.origin.x - 18, aRect.origin.y + (aRect.size.height/2));
break;
case kDockPositionLeft:
aMenuPoint = CGPointMake(aRect.origin.x + aRect.size.width + 18, aRect.origin.y + (aRect.size.height/2));
break;
case kDockPositionBottom:
aMenuPoint = CGPointMake(aRect.origin.x + (aRect.size.width/2), aRect.origin.y - 18);
break;
case kDockPositionUnknown:
aMenuPoint = CGPointMake(0, 0);
break;
}
} else {
NSRect screenFrame = [[NSScreen mainScreen] frame];
switch ([self dockPosition]) {
case kDockPositionRight:
aMenuPoint = CGPointMake(screenFrame.size.width - 18, aRect.origin.y + (aRect.size.height/2));
break;
case kDockPositionLeft:
aMenuPoint = CGPointMake(screenFrame.origin.x + 18, aRect.origin.y + (aRect.size.height/2));
break;
case kDockPositionBottom:
aMenuPoint = CGPointMake(aRect.origin.x + (aRect.size.width/2), screenFrame.size.height - 18);
break;
case kDockPositionUnknown:
aMenuPoint = CGPointMake(0, 0);
break;
}
}
if ((aMenuPoint.x != 0) && (aMenuPoint.y != 0)) {
AXUIElementRef _systemWideElement = AXUIElementCreateSystemWide();
AXUIElementRef aMenu;
AXUIElementCopyElementAtPosition(_systemWideElement, aMenuPoint.x, aMenuPoint.y, &aMenu);
SafeCFRelease(_systemWideElement);
// Get menu items
CFTypeRef aMenuChildren;
AXUIElementCopyAttributeValue(aMenu, kAXVisibleChildrenAttribute, &aMenuChildren);
NSRunningApplication *app = [[NSRunningApplication runningApplicationsWithBundleIdentifier:[appDict objectForKey:@"BundleID"]] objectAtIndex:0];
for (NSInteger i = 0; i < CFArrayGetCount(aMenuChildren); i++) {
AXUIElementRef aMenuItem = [self copyAXUIElementFrom:aMenu role:kAXMenuItemRole atIndex:i];
CFTypeRef aTitle;
AXUIElementCopyAttributeValue(aMenuItem, kAXTitleAttribute, &aTitle);
// Supports chrome, safari, and finder
if ([(__bridge NSString *)aTitle isEqualToString:@"New Window"] || [(__bridge NSString *)aTitle isEqualToString:@"New Finder Window"]) {
AXUIElementPerformAction(aMenuItem, kAXPressAction);
NSInteger numberOfWindows = [self numberOfWindowsOpenFromApplicationWithPID:[app processIdentifier]];
// Wait until open
while ([self numberOfWindowsOpenFromApplicationWithPID:[app processIdentifier]] <= numberOfWindows) {
}
break;
}
}
SafeCFRelease(aMenu);
SafeCFRelease(aMenuChildren);
}
}
這是非常複雜的，但它的作品。我可能無法解釋它，但我壓力測試了這個代碼，它工作得很好。
我使用兒童列表來檢查它是否有某個標題。然後行動 – Minebomber
我編輯了我的答案。 – Willeke
嗯。謝謝。我對可訪問性仍然很陌生。我會試圖找出它 – Minebomber