--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/bthid/keyboard/src/finder.cpp Mon Jan 18 20:28:57 2010 +0200
@@ -0,0 +1,391 @@
+/*
+* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: This is the implementation of application class
+ *
+*/
+
+
+#include <e32std.h>
+#include <e32svr.h>
+
+#include "finder.h"
+
+// ----------------------------------------------------------------------
+
+#ifndef DBG
+#ifdef _DEBUG
+#define DBG(a) a
+#else
+#define DBG(a)
+#endif
+#endif
+
+// ----------------------------------------------------------------------
+
+TKeyboardFinder::TKeyboardFinder() :
+ iStandardKeys(0), iModifierKeys(0), iLeds(0), iAppCollection(0)
+ {
+ // Nothing else to do
+ }
+
+// ----------------------------------------------------------------------
+
+TBool TKeyboardFinder::BeginCollection(const CCollection* aCollection)
+ {
+ TBool examineCollection = ETrue;
+
+ if ((aCollection->IsApplication()) && (iAppCollection == 0))
+ {
+ // Top-level application collection.
+
+ if ((aCollection->UsagePage() == EUsagePageGenericDesktop)
+ && (aCollection->Usage() == EGenericDesktopUsageKeyboard))
+ {
+ DBG(RDebug::Print(_L("[HID]\tTKeyboardFinder::BeginCollection: this is keyboard collection ")));
+ // Collection is a keyboard device:
+ iAppCollection = aCollection;
+ iStandardKeys = iModifierKeys = iLeds = 0;
+ }
+ else
+ {
+ // (dont) Skip other types of top-level application collection:
+ DBG(RDebug::Print(_L("[HID]\tTKeyboardFinder::BeginCollection: not keyboard collection ")));
+ examineCollection = EFalse;
+ }
+ }
+
+ return examineCollection;
+ }
+
+TBool TKeyboardFinder::EndCollection(const CCollection* aCollection)
+ {
+ TBool continueSearch = ETrue;
+
+ if (aCollection == iAppCollection)
+ {
+ // Top-level application(Generic Desktop:Keyboard) finished:
+ //
+ iAppCollection = 0;
+
+ // Stop if we've found a keyboard we can use in this
+ // application collection:
+ //
+ continueSearch = !Found();
+ }
+
+ return continueSearch;
+ }
+
+void TKeyboardFinder::Field(const CField* aField)
+ {
+ if (iAppCollection)
+ {
+ if (IsStandardKeys(aField))
+ {
+ iStandardKeys = aField;
+ }
+
+ if (IsModifiers(aField))
+ {
+ iModifierKeys = aField;
+ }
+
+ if (IsLeds(aField))
+ {
+ iLeds = aField;
+ }
+ }
+ }
+
+// ----------------------------------------------------------------------
+
+TBool TKeyboardFinder::IsModifiers(const CField* aField) const
+ {
+ TBool found = EFalse;
+
+ if (aField->IsInput() && aField->IsData() && (aField->UsagePage()
+ == EUsagePageKeyboard))
+ {
+ const TInt KKbdLeftControl = 224;
+ const TInt KKbdRightGUI = 231;
+
+ // Test for a field containing only modifier keys
+ if ((aField->UsageMin() >= KKbdLeftControl) && (aField->UsageMax()
+ <= KKbdRightGUI))
+ {
+ DBG(RDebug::Print(_L("[HID]\t Modifier field found")));
+ found = ETrue;
+ }
+ }
+
+ return found;
+ }
+
+TBool TKeyboardFinder::IsStandardKeys(const CField* aField) const
+ {
+ TBool found = EFalse;
+
+ if (aField->IsInput() && aField->IsData() && (aField->UsagePage()
+ == EUsagePageKeyboard))
+ {
+ const TInt KKeyboardRollOver = 0x01;
+ const TInt KKeyboardUpArrow = 0x52;
+
+ if ((aField->UsageMin() <= KKeyboardRollOver) && (aField->UsageMax()
+ >= KKeyboardUpArrow))
+ {
+ DBG(RDebug::Print(_L("[HID]\t Standard keys field found")));
+ found = ETrue;
+ }
+ }
+
+ return found;
+ }
+
+TBool TKeyboardFinder::IsLeds(const CField* aField) const
+ {
+ TBool found = EFalse;
+
+ if (aField->IsOutput() && aField->IsData() && (aField->UsagePage()
+ == EUsagePageLEDs))
+ {
+ const TInt KNumLockLed = 1;
+ const TInt KCapsLockLed = 2;
+
+ // Test for a field containing at least num lock or caps lock
+ if ((aField->UsageMin() <= KCapsLockLed) && (aField->UsageMax()
+ >= KNumLockLed))
+ {
+ DBG(RDebug::Print(_L("[HID]\t LED field found")));
+ found = ETrue;
+ }
+ }
+
+ return found;
+ }
+
+// ----------------------------------------------------------------------
+
+TConsumerKeysFinder::TConsumerKeysFinder() :
+ iField(0)
+ {
+ // Nothing else to do
+ }
+
+void TConsumerKeysFinder::Field(const CField* aField)
+ {
+ if (!Found() && aField->IsInput() && aField->IsData()
+ && (aField->UsagePage() == EUsagePageConsumer))
+ {
+ DBG(RDebug::Print(_L("Consumer keys field found\r\n")));
+ iField = aField;
+ }
+ }
+
+TBool TConsumerKeysFinder::BeginCollection(const CCollection* aCollection)
+ {
+ const TInt KConsumerControl = 0x01;
+
+ // Only look at top-level application (consumer devices: consumer
+ // control) collections:
+ //
+ return aCollection->IsApplication() && (aCollection->UsagePage()
+ == EUsagePageConsumer) && (aCollection->Usage()
+ == KConsumerControl);
+ }
+
+TBool TConsumerKeysFinder::EndCollection(const CCollection* /*aCollection*/)
+ {
+ return !Found();
+ }
+
+// ----------------------------------------------------------------------
+
+TPowerKeysFinder::TPowerKeysFinder() :
+ iField(0)
+ {
+ // Nothing else to do
+ }
+
+void TPowerKeysFinder::Field(const CField* aField)
+ {
+ if (!Found() && aField->IsInput() && aField->IsData()
+ && (aField->UsagePage() == EUsagePageGenericDesktop))
+ {
+ // See if the range includes one or more of the power down,
+ // sleep or wakeup controls:
+
+ const TInt KPowerDown = 0x81;
+ const TInt KWakeUp = 0x83;
+
+ if ((aField->UsageMin() <= KWakeUp) && (aField->UsageMax()
+ >= KPowerDown))
+ {
+ DBG(RDebug::Print(_L("[HID]\t Power keys field found\r\n")));
+ iField = aField;
+ }
+ }
+ }
+
+TBool TPowerKeysFinder::BeginCollection(const CCollection* aCollection)
+ {
+ const TInt KSystemControl = 0x80;
+
+ // Only look at top-level application (generic desktop: system
+ // control) collections:
+ //
+ return aCollection->IsApplication() && (aCollection->UsagePage()
+ == EUsagePageGenericDesktop) && (aCollection->Usage()
+ == KSystemControl);
+ }
+
+TBool TPowerKeysFinder::EndCollection(const CCollection*)
+ {
+ return !Found();
+ }
+
+// ----------------------------------------------------------------------
+TMouseFinder::TMouseFinder() :
+ iXY(0), iButtons(0), iWheel(0), iAppCollection(0)
+ {
+ // Nothing else to do
+ }
+
+// ----------------------------------------------------------------------
+
+TBool TMouseFinder::BeginCollection(const CCollection *aCollection)
+ {
+ TBool examineCollection = ETrue;
+
+ if ((aCollection->IsApplication()) && (iAppCollection == 0))
+ {
+ // Top-level application collection.
+
+ if ((aCollection->UsagePage() == EUsagePageGenericDesktop)
+ && (aCollection->Usage() == EGenericDesktopUsageMouse))
+ {
+ // Collection is a mouse device:
+ iAppCollection = aCollection;
+ iXY = iWheel = iButtons = 0;
+ }
+ else
+ {
+ // Skip other types of top-level application collection:
+ examineCollection = EFalse;
+ }
+ }
+
+ return examineCollection;
+ }
+
+TBool TMouseFinder::EndCollection(const CCollection *aCollection)
+ {
+ TBool continueSearch = ETrue;
+
+ DBG(RDebug::Print(_L("[HID]\tTHeadsetFinder::EndCollection")));
+ if (aCollection == iAppCollection)
+ {
+ // Top-level application(Generic Desktop:Mouse) finished:
+ //
+ iAppCollection = 0;
+
+ // Stop if we've found a mouse we can use in this
+ // application collection:
+ //
+ continueSearch = !Found();
+ }
+
+ return continueSearch;
+ }
+
+void TMouseFinder::Field(const CField* aField)
+ {
+ if (iAppCollection)
+ {
+ if (IsWheel(aField))
+ {
+ iWheel = aField;
+ }
+
+ if (IsXY(aField))
+ {
+ iXY = aField;
+ }
+
+ if (IsButtons(aField))
+ {
+ iButtons = aField;
+ }
+ }
+ }
+
+// ----------------------------------------------------------------------
+
+
+TBool TMouseFinder::IsXY(const CField* aField) const
+ {
+ TBool found = EFalse;
+
+ if (aField->IsInput() && aField->IsData() && (aField->UsagePage()
+ == EUsagePageGenericDesktop))
+ {
+
+ if (aField->HasUsage(EGenericDesktopUsageX) && aField->HasUsage(
+ EGenericDesktopUsageY))
+ {
+ DBG(RDebug::Print(_L("[HID]\tXY field found")));
+ found = ETrue;
+ }
+ }
+
+ return found;
+ }
+
+TBool TMouseFinder::IsButtons(const CField* aField) const
+ {
+ TBool found = EFalse;
+
+ if (aField->IsInput() && aField->IsData() && (aField->UsagePage()
+ == EUsagePageButton))
+ {
+ const TInt KMinButtons = 1;
+ const TInt KMaxButtons = 15;
+
+ // Test for a field containing at least num lock or caps lock
+ if ((aField->UsageMin() >= KMinButtons) && (aField->UsageMax()
+ <= KMaxButtons))
+ {
+ DBG(RDebug::Print(_L("[HID]\tButtons field found")));
+ found = ETrue;
+ }
+ }
+
+ return found;
+ }
+
+TBool TMouseFinder::IsWheel(const CField* aField) const
+ {
+ TBool found = EFalse;
+
+ if (aField->IsInput() && aField->IsData() && (aField->UsagePage()
+ == EUsagePageGenericDesktop))
+ {
+ if (aField->HasUsage(EGenericDesktopUsageWheel))
+ {
+ found = ETrue;
+ }
+ }
+
+ return found;
+ }