8701f5ef05
Change-Id: I8ccb7be448faf42904eb6246a4f5a06ff8028ffc
216 lines
8.1 KiB
Objective-C
216 lines
8.1 KiB
Objective-C
/* -*- Mode: ObjC; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*****************************************************************************
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* MultiClickRemoteBehavior.m
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* RemoteControlWrapper
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*
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* Created by Martin Kahr on 11.03.06 under a MIT-style license.
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* Copyright (c) 2006 martinkahr.com. All rights reserved.
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*
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* Code modified and adapted to OpenOffice.org
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* by Eric Bachard on 11.08.2008 under the same License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*****************************************************************************/
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#import "MultiClickRemoteBehavior.h"
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const NSTimeInterval DEFAULT_MAXIMUM_CLICK_TIME_DIFFERENCE = 0.35;
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const NSTimeInterval HOLD_RECOGNITION_TIME_INTERVAL = 0.4;
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@implementation MultiClickRemoteBehavior
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- (id) init {
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if ( (self = [super init]) ) {
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maxClickTimeDifference = DEFAULT_MAXIMUM_CLICK_TIME_DIFFERENCE;
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}
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return self;
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}
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// Delegates are not retained!
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// http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaFundamentals/CommunicatingWithObjects/chapter_6_section_4.html
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// Delegating objects do not (and should not) retain their delegates.
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// However, clients of delegating objects (applications, usually) are responsible for ensuring that their delegates are around
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// to receive delegation messages. To do this, they may have to retain the delegate.
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- (void) setDelegate: (id) _delegate {
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if ( _delegate && ( [_delegate respondsToSelector:@selector(remoteButton:pressedDown:clickCount:)] == NO )) return; // return what ?
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delegate = _delegate;
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}
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- (id) delegate {
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return delegate;
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}
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- (BOOL) simulateHoldEvent {
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return simulateHoldEvents;
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}
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- (void) setSimulateHoldEvent: (BOOL) value {
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simulateHoldEvents = value;
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}
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- (BOOL) simulatesHoldForButtonIdentifier: (RemoteControlEventIdentifier) identifier remoteControl: (RemoteControl*) remoteControl {
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// we do that check only for the normal button identifiers as we would check for hold support for hold events instead
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if (identifier > (1 << EVENT_TO_HOLD_EVENT_OFFSET)) return NO;
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return [self simulateHoldEvent] && [remoteControl sendsEventForButtonIdentifier: (identifier << EVENT_TO_HOLD_EVENT_OFFSET)]==NO;
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}
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- (BOOL) clickCountingEnabled {
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return clickCountEnabledButtons != 0;
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}
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- (void) setClickCountingEnabled: (BOOL) value {
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if (value) {
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[self setClickCountEnabledButtons: kRemoteButtonPlus | kRemoteButtonMinus | kRemoteButtonPlay | kRemoteButtonLeft | kRemoteButtonRight | kRemoteButtonMenu | kMetallicRemote2009ButtonPlay | kMetallicRemote2009ButtonMiddlePlay];
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} else {
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[self setClickCountEnabledButtons: 0];
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}
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}
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- (unsigned int) clickCountEnabledButtons {
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return clickCountEnabledButtons;
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}
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- (void) setClickCountEnabledButtons: (unsigned int)value {
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clickCountEnabledButtons = value;
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}
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- (NSTimeInterval) maximumClickCountTimeDifference {
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return maxClickTimeDifference;
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}
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- (void) setMaximumClickCountTimeDifference: (NSTimeInterval) timeDiff {
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maxClickTimeDifference = timeDiff;
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}
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- (void) sendSimulatedHoldEvent: (id) time {
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BOOL startSimulateHold = NO;
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RemoteControlEventIdentifier event = lastHoldEvent;
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@synchronized(self) {
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startSimulateHold = (lastHoldEvent>0 && lastHoldEventTime == [time doubleValue]);
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}
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if (startSimulateHold) {
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lastEventSimulatedHold = YES;
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event = (event << EVENT_TO_HOLD_EVENT_OFFSET);
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[delegate remoteButton:event pressedDown: YES clickCount: 1];
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}
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}
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- (void) executeClickCountEvent: (NSArray*) values {
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RemoteControlEventIdentifier event = [[values objectAtIndex: 0] unsignedIntValue];
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NSTimeInterval eventTimePoint = [[values objectAtIndex: 1] doubleValue];
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BOOL finishedClicking = NO;
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int finalClickCount = eventClickCount;
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@synchronized(self) {
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finishedClicking = (event != lastClickCountEvent || eventTimePoint == lastClickCountEventTime);
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if (finishedClicking) {
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eventClickCount = 0;
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lastClickCountEvent = 0;
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lastClickCountEventTime = 0;
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}
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}
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if (finishedClicking) {
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[delegate remoteButton:event pressedDown: YES clickCount:finalClickCount];
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// trigger a button release event, too
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[NSThread sleepUntilDate: [NSDate dateWithTimeIntervalSinceNow:0.1]];
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[delegate remoteButton:event pressedDown: NO clickCount:finalClickCount];
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}
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}
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- (void) sendRemoteButtonEvent: (RemoteControlEventIdentifier) event pressedDown: (BOOL) pressedDown remoteControl: (RemoteControl*) remoteControl {
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if (!delegate) return;
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BOOL clickCountingForEvent = ([self clickCountEnabledButtons] & event) == event;
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if ([self simulatesHoldForButtonIdentifier: event remoteControl: remoteControl] && lastClickCountEvent==0) {
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if (pressedDown) {
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// wait to see if it is a hold
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lastHoldEvent = event;
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lastHoldEventTime = [NSDate timeIntervalSinceReferenceDate];
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[self performSelector:@selector(sendSimulatedHoldEvent:)
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withObject:[NSNumber numberWithDouble:lastHoldEventTime]
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afterDelay:HOLD_RECOGNITION_TIME_INTERVAL];
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return;
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} else {
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if (lastEventSimulatedHold) {
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// it was a hold
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// send an event for "hold release"
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event = (event << EVENT_TO_HOLD_EVENT_OFFSET);
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lastHoldEvent = 0;
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lastEventSimulatedHold = NO;
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[delegate remoteButton:event pressedDown: pressedDown clickCount:1];
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return;
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} else {
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RemoteControlEventIdentifier previousEvent = lastHoldEvent;
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@synchronized(self) {
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lastHoldEvent = 0;
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}
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// in case click counting is enabled we have to setup the state for that, too
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if (clickCountingForEvent) {
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lastClickCountEvent = previousEvent;
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lastClickCountEventTime = lastHoldEventTime;
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NSNumber* eventNumber;
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NSNumber* timeNumber;
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eventClickCount = 1;
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timeNumber = [NSNumber numberWithDouble:lastClickCountEventTime];
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eventNumber= [NSNumber numberWithUnsignedInt:previousEvent];
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NSTimeInterval diffTime = maxClickTimeDifference-([NSDate timeIntervalSinceReferenceDate]-lastHoldEventTime);
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[self performSelector: @selector(executeClickCountEvent:)
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withObject: [NSArray arrayWithObjects:eventNumber, timeNumber, nil]
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afterDelay: diffTime];
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// we do not return here because we are still in the press-release event
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// that will be consumed below
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} else {
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// trigger the pressed down event that we consumed first
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[delegate remoteButton:event pressedDown: YES clickCount:1];
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}
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}
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}
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}
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if (clickCountingForEvent) {
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if (pressedDown == NO) return;
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NSNumber* eventNumber;
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NSNumber* timeNumber;
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@synchronized(self) {
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lastClickCountEventTime = [NSDate timeIntervalSinceReferenceDate];
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if (lastClickCountEvent == event) {
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eventClickCount = eventClickCount + 1;
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} else {
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eventClickCount = 1;
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}
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lastClickCountEvent = event;
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timeNumber = [NSNumber numberWithDouble:lastClickCountEventTime];
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eventNumber= [NSNumber numberWithUnsignedInt:event];
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}
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[self performSelector: @selector(executeClickCountEvent:)
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withObject: [NSArray arrayWithObjects:eventNumber, timeNumber, nil]
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afterDelay: maxClickTimeDifference];
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} else {
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[delegate remoteButton:event pressedDown: pressedDown clickCount:1];
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}
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}
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@end
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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