使用Cocoa的辅助功能API获取我应用程序的dock图标的位置 [英] Getting the position of my application's dock icon using Cocoa's Accessibility API
本文介绍了使用Cocoa的辅助功能API获取我应用程序的dock图标的位置的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何使用辅助功能API获取应用程序的dock图标位置?
How can I get the position of my application's dock icon using the Accessibility API?
推荐答案
找到了!使用此论坛帖子作为参考,我能够塑造给定的示例代码我需要:
Found it! Using this forum post as reference, I was able to shape the given sample code to what I needed:
- (NSArray *)subelementsFromElement:(AXUIElementRef)element forAttribute:(NSString *)attribute
{
NSArray *subElements = nil;
CFIndex count = 0;
AXError result;
result = AXUIElementGetAttributeValueCount(element, (CFStringRef)attribute, &count);
if (result != kAXErrorSuccess) return nil;
result = AXUIElementCopyAttributeValues(element, (CFStringRef)attribute, 0, count, (CFArrayRef *)&subElements);
if (result != kAXErrorSuccess) return nil;
return [subElements autorelease];
}
- (AXUIElementRef)appDockIconByName:(NSString *)appName
{
AXUIElementRef appElement = NULL;
appElement = AXUIElementCreateApplication([[[NSRunningApplication runningApplicationsWithBundleIdentifier:@"com.apple.dock"] lastObject] processIdentifier]);
if (appElement != NULL)
{
AXUIElementRef firstChild = (__bridge AXUIElementRef)[[self subelementsFromElement:appElement forAttribute:@"AXChildren"] objectAtIndex:0];
NSArray *children = [self subelementsFromElement:firstChild forAttribute:@"AXChildren"];
NSEnumerator *e = [children objectEnumerator];
AXUIElementRef axElement;
while (axElement = (__bridge AXUIElementRef)[e nextObject])
{
CFTypeRef value;
id titleValue;
AXError result = AXUIElementCopyAttributeValue(axElement, kAXTitleAttribute, &value);
if (result == kAXErrorSuccess)
{
if (AXValueGetType(value) != kAXValueIllegalType)
titleValue = [NSValue valueWithPointer:value];
else
titleValue = (__bridge id)value; // assume toll-free bridging
if ([titleValue isEqual:appName]) {
return axElement;
}
}
}
}
return nil;
}
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
AXUIElementRef dockIcon = [self appDockIconByName:@"MYAPPNAME"];
if (dockIcon) {
CFTypeRef value;
CGPoint iconPosition;
AXError result = AXUIElementCopyAttributeValue(dockIcon, kAXPositionAttribute, &value);
if (result == kAXErrorSuccess)
{
if (AXValueGetValue(value, kAXValueCGPointType, &iconPosition)) {
NSLog(@"position: (%f, %f)", iconPosition.x, iconPosition.y);
}
}
}
}
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