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Diffstat (limited to 'lib/DDHidMouse.m')
| -rw-r--r-- | lib/DDHidMouse.m | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/lib/DDHidMouse.m b/lib/DDHidMouse.m new file mode 100644 index 0000000..7eeb5b3 --- /dev/null +++ b/lib/DDHidMouse.m @@ -0,0 +1,279 @@ +/* + * 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 "DDHidMouse.h" +#import "DDHidUsage.h" +#import "DDHidElement.h" +#import "DDHidQueue.h" +#import "DDHidEvent.h" +#include <IOKit/hid/IOHIDUsageTables.h> + + +// Implement our own delegate methods + +@interface DDHidMouse (DDHidMouseDelegate) + +- (void) ddhidMouse: (DDHidMouse *) mouse xChanged: (SInt32) deltaX; +- (void) ddhidMouse: (DDHidMouse *) mouse yChanged: (SInt32) deltaY; +- (void) ddhidMouse: (DDHidMouse *) mouse wheelChanged: (SInt32) deltaWheel; +- (void) ddhidMouse: (DDHidMouse *) mouse buttonDown: (unsigned) buttonNumber; +- (void) ddhidMouse: (DDHidMouse *) mouse buttonUp: (unsigned) buttonNumber; + +@end + +@interface DDHidMouse (Private) + +- (void) initMouseElements: (NSArray *) elements; +- (void) ddhidQueueHasEvents: (DDHidQueue *) hidQueue; + +@end + +@implementation DDHidMouse + ++ (NSArray *) allMice; +{ + return + [DDHidDevice allDevicesMatchingUsagePage: kHIDPage_GenericDesktop + usageId: kHIDUsage_GD_Mouse + withClass: self + skipZeroLocations: YES]; +} + +- (id) initWithDevice: (io_object_t) device error: (NSError **) error_; +{ + self = [super initWithDevice: device error: error_]; + if (self == nil) + return nil; + + mXElement = mYElement = mWheelElement = nil; + mButtonElements = [[NSMutableArray alloc] init]; + [self initMouseElements: [self elements]]; + + return self; +} + +//=========================================================== +// dealloc +//=========================================================== +- (void) dealloc +{ + [mXElement release]; + [mYElement release]; + [mWheelElement release]; + [mButtonElements release]; + + mXElement = nil; + mYElement = nil; + mWheelElement = nil; + mButtonElements = nil; + [super dealloc]; +} + +#pragma mark - +#pragma mark Mouse Elements + +//=========================================================== +// - xElement +//=========================================================== +- (DDHidElement *) xElement +{ + return mXElement; +} + +//=========================================================== +// - yElement +//=========================================================== +- (DDHidElement *) yElement +{ + return mYElement; +} + +- (DDHidElement *) wheelElement; +{ + return mWheelElement; +} + +//=========================================================== +// - buttonElements +//=========================================================== +- (NSArray *) buttonElements; +{ + return mButtonElements; +} + +- (unsigned) numberOfButtons; +{ + return [mButtonElements count]; +} + +- (void) addElementsToQueue: (DDHidQueue *) queue; +{ + [queue addElement: mXElement]; + [queue addElement: mYElement]; + [queue addElement: mWheelElement]; + [queue addElements: mButtonElements]; +} + + +#pragma mark - +#pragma mark Asynchronous Notification + +- (void) setDelegate: (id) delegate; +{ + mDelegate = delegate; +} + +- (void) addElementsToDefaultQueue; +{ + [self addElementsToQueue: mDefaultQueue]; +} + +@end + +@implementation DDHidMouse (DDHidMouseDelegate) + +- (void) ddhidMouse: (DDHidMouse *) mouse xChanged: (SInt32) deltaX; +{ + if ([mDelegate respondsToSelector: _cmd]) + [mDelegate ddhidMouse: mouse xChanged: deltaX]; +} + +- (void) ddhidMouse: (DDHidMouse *) mouse yChanged: (SInt32) deltaY; +{ + if ([mDelegate respondsToSelector: _cmd]) + [mDelegate ddhidMouse: mouse yChanged: deltaY]; +} + +- (void) ddhidMouse: (DDHidMouse *) mouse wheelChanged: (SInt32) deltaWheel; +{ + if ([mDelegate respondsToSelector: _cmd]) + [mDelegate ddhidMouse: mouse wheelChanged: deltaWheel]; +} + +- (void) ddhidMouse: (DDHidMouse *) mouse buttonDown: (unsigned) buttonNumber; +{ + if ([mDelegate respondsToSelector: _cmd]) + [mDelegate ddhidMouse: mouse buttonDown: buttonNumber]; +} + +- (void) ddhidMouse: (DDHidMouse *) mouse buttonUp: (unsigned) buttonNumber; +{ + if ([mDelegate respondsToSelector: _cmd]) + [mDelegate ddhidMouse: mouse buttonUp: buttonNumber]; +} + +@end + +@implementation DDHidMouse (Private) + +- (void) initMouseElements: (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_GenericDesktop) && + (usageId == kHIDUsage_GD_X)) + { + mXElement = [element retain]; + } + else if ((usagePage == kHIDPage_GenericDesktop) && + (usageId == kHIDUsage_GD_Y)) + { + mYElement = [element retain]; + } + else if ((usagePage == kHIDPage_GenericDesktop) && + (usageId == kHIDUsage_GD_Wheel)) + { + mWheelElement = [element retain]; + } + else if ((usagePage == kHIDPage_Button) && + (usageId > 0)) + { + [mButtonElements addObject: element]; + } + NSArray * subElements = [element elements]; + if (subElements != nil) + [self initMouseElements: subElements]; + } +} + +- (void) ddhidQueueHasEvents: (DDHidQueue *) hidQueue; +{ + DDHidEvent * event; + while (event = [hidQueue nextEvent]) + { + IOHIDElementCookie cookie = [event elementCookie]; + SInt32 value = [event value]; + if (cookie == [[self xElement] cookie]) + { + if (value != 0) + { + [self ddhidMouse: self xChanged: value]; + } + } + else if (cookie == [[self yElement] cookie]) + { + if (value != 0) + { + [self ddhidMouse: self yChanged: value]; + } + } + else if (cookie == [[self wheelElement] cookie]) + { + if (value != 0) + { + [self ddhidMouse: self wheelChanged: value]; + } + } + else + { + unsigned i = 0; + for (i = 0; i < [[self buttonElements] count]; i++) + { + if (cookie == [[[self buttonElements] objectAtIndex: i] cookie]) + break; + } + + if (value == 1) + { + [self ddhidMouse: self buttonDown: i]; + } + else if (value == 0) + { + [self ddhidMouse: self buttonUp: i]; + } + else + { + DDHidElement * element = [self elementForCookie: [event elementCookie]]; + NSLog(@"Element: %@, value: %d", [[element usage] usageName], [event value]); + } + } + } +} + +@end + |