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+/*
+ * Copyright (c) 2007 Dave Dribin
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#import "DDHidAppleMikey.h"
+#import "DDHidElement.h"
+#import "DDHidUsage.h"
+#import "DDHidQueue.h"
+#import "DDHidEvent.h"
+#include <IOKit/hid/IOHIDUsageTables.h>
+
+@interface DDHidAppleMikey (DDHidAppleMikeyDelegate)
+
+- (void) ddhidAppleMikey: (DDHidAppleMikey *) mikey
+ press: (unsigned) usageId
+ upOrDown:(BOOL)upOrDown;
+
+@end
+
+@interface DDHidAppleMikey (Private)
+
+- (void) initPressElements: (NSArray *) elements;
+- (void) ddhidQueueHasEvents: (DDHidQueue *) hidQueue;
+
+@end
+
+@implementation DDHidAppleMikey
+
++ (NSArray *) allMikeys;
+{
+ //add mikey
+ CFMutableDictionaryRef hidMatchDictionary =
+ IOServiceMatching(kIOHIDDeviceKey);
+ id a2 = [self allDevicesMatchingCFDictionary: hidMatchDictionary
+ withClass: self
+ skipZeroLocations: NO];
+ a2 = [a2 filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"productName == \"Apple Mikey HID Driver\""]];
+
+ return a2;
+}
+
+- (id) initWithDevice: (io_object_t) device error: (NSError **) error_;
+{
+ self = [super initWithDevice: device error: error_];
+ if (self == nil)
+ return nil;
+
+ mPressElements = [[NSMutableArray alloc] init];
+ [self initPressElements: [self elements]];
+
+ return self;
+}
+
+//===========================================================
+// dealloc
+//===========================================================
+- (void) dealloc
+{
+ [mPressElements release];
+
+ mPressElements = nil;
+ [super dealloc];
+}
+
+#pragma mark -
+#pragma mark Elements
+
+- (NSArray *) pressElements;
+{
+ return mPressElements;
+}
+
+- (unsigned) numberOfKeys;
+{
+ return [mPressElements count];
+}
+
+- (void) addElementsToQueue: (DDHidQueue *) queue;
+{
+ [queue addElements: mPressElements];
+}
+
+#pragma mark -
+#pragma mark Asynchronous Notification
+
+- (void) setDelegate: (id) delegate;
+{
+ mDelegate = delegate;
+}
+
+- (void) addElementsToDefaultQueue;
+{
+ [self addElementsToQueue: mDefaultQueue];
+}
+
+@end
+
+@implementation DDHidAppleMikey (DDHidAppleMikeyDelegate)
+
+- (void) ddhidAppleMikey:(DDHidAppleMikey *)mikey press:(unsigned int)usageId upOrDown:(BOOL)upOrDown
+{
+ if ([mDelegate respondsToSelector: _cmd])
+ [mDelegate ddhidAppleMikey: mikey press: usageId upOrDown:(BOOL)upOrDown];
+}
+
+@end
+
+@implementation DDHidAppleMikey (Private)
+
+- (void) initPressElements: (NSArray *) elements;
+{
+ NSEnumerator * e = [elements objectEnumerator];
+ DDHidElement * element;
+ while (element = [e nextObject])
+ {
+// unsigned usagePage = [[element usage] usagePage];
+// unsigned usageId = [[element usage] usageId];
+// if (usagePage == kHIDPage_KeyboardOrKeypad)
+// {
+// if ((usageId >= 0x04) && (usageId <= 0xA4) ||
+// (usageId >= 0xE0) && (usageId <= 0xE7))
+ {
+ [mPressElements addObject: element];
+ }
+// }
+ NSArray * subElements = [element elements];
+ if (subElements != nil)
+ [self initPressElements: subElements];
+ }
+}
+
+- (void) ddhidQueueHasEvents: (DDHidQueue *) hidQueue;
+{
+ DDHidEvent * event;
+ while (event = [hidQueue nextEvent])
+ {
+ DDHidElement * element = [self elementForCookie: [event elementCookie]];
+ unsigned usageId = [[element usage] usageId];
+ SInt32 value = [event value];
+ [self ddhidAppleMikey:self press:usageId upOrDown:value==1];
+ }
+}
+
+@end