--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxui/src/cxuicapturekeyhandler_symbian_p.cpp	Fri Aug 06 10:03:37 2010 +0300
@@ -0,0 +1,192 @@
+/*
+* Copyright (c) 2010 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:
+*   Private implementation for CxuiCaptureKeyHandler
+*/
+
+#include <QVariant>
+#include <QKeyEvent>
+
+#include "cxuicapturekeyhandler_symbian_p.h"
+#include "cxuicapturekeyhandler.h"
+#include "cxutils.h"
+#include "cxeengine.h"
+#include "cxenamespace.h"
+#include "cxefeaturemanager.h"
+
+#include <w32std.h>
+#include <eikon.hrh>
+#include <coemain.h>
+#include <e32keys.h> // for EKeyCamera
+
+namespace {
+    const int CXUI_KEY_PRIORITY = 100;
+    const int CXUI_CAPTURE_KEY_CODE1 = 0xab;
+    const int CXUI_CAPTURE_KEY_CODE2 = 0xf849;
+    const int CXUI_AUTOFOCUS_KEY_CODE1 = 0xe2;
+    const int CXUI_AUTOFOCUS_KEY_CODE2 = 0xf880;
+
+}
+CxuiCaptureKeyHandlerPrivate::CxuiCaptureKeyHandlerPrivate(CxeEngine &aEngine, CxuiCaptureKeyHandler *parent) :
+    q_ptr(parent),
+    mEngine(aEngine),
+    mAutofocusKeyPressed(false),
+    mCaptureKeyPressed(false),
+    mWsSession(CCoeEnv::Static()->WsSession()),
+    mWindowGroup(CCoeEnv::Static()->RootWin())
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    // key codes hardcoded for now
+    // Autofocus key
+    mPrimaryCameraAutofocusKeys.append(CXUI_AUTOFOCUS_KEY_CODE1);
+    mPrimaryCameraAutofocusKeys.append(CXUI_AUTOFOCUS_KEY_CODE2);
+
+    // Capture keys for primary camera
+    mPrimaryCameraCaptureKeys.append(CXUI_CAPTURE_KEY_CODE1);
+    mPrimaryCameraCaptureKeys.append(CXUI_CAPTURE_KEY_CODE2);
+
+    listenKeys(true);
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+CxuiCaptureKeyHandlerPrivate::~CxuiCaptureKeyHandlerPrivate()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    listenKeys(false);
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+* Start or stop listening key events.
+* @param listen Should we start (true) or stop (false) listening key events.
+*/
+void CxuiCaptureKeyHandlerPrivate::listenKeys(bool listen)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (listen) {
+        // Protect from multiple calls
+        if (mCapturedKeyUpDownHandles.empty() && mCapturedKeyHandles.empty()) {
+
+            int key(0);
+            foreach (key, mPrimaryCameraAutofocusKeys) {
+                CX_DEBUG(("CxuiCaptureKeyHandlerPrivate - hooking autofocus key with scan / key code: %d", key));
+                listenKey(key);
+            }
+            foreach (key, mPrimaryCameraCaptureKeys) {
+                CX_DEBUG(("CxuiCaptureKeyHandlerPrivate - hooking capture key with scan / key code: %d", key));
+                listenKey(key);
+            }
+        }
+    } else {
+
+        int handle(0);
+        foreach (handle, mCapturedKeyUpDownHandles) {
+            mWindowGroup.CancelCaptureKeyUpAndDowns(handle);
+        }
+        mCapturedKeyUpDownHandles.clear();
+
+        foreach (handle, mCapturedKeyHandles) {
+            mWindowGroup.CancelCaptureKey(handle);
+        }
+        mCapturedKeyHandles.clear();
+    }
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+bool CxuiCaptureKeyHandlerPrivate::isAutofocusKeyPressed()
+{
+    return mAutofocusKeyPressed;
+}
+
+bool CxuiCaptureKeyHandlerPrivate::isCaptureKeyPressed()
+{
+    return mCaptureKeyPressed;
+}
+
+bool CxuiCaptureKeyHandlerPrivate::handleKeyEvent(QEvent *event)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    Q_Q(CxuiCaptureKeyHandler);
+    bool eventWasConsumed = false;
+
+    if (event->type() == QEvent::KeyPress) {
+        QKeyEvent *keyEvent = static_cast<QKeyEvent*> (event);
+        if ( mPrimaryCameraAutofocusKeys.contains(keyEvent->nativeScanCode())
+            && !mAutofocusKeyPressed ) {
+
+            mAutofocusKeyPressed = true;
+            eventWasConsumed = true;
+            emit q->autofocusKeyPressed();
+
+        } else if (mPrimaryCameraCaptureKeys.contains(keyEvent->nativeScanCode())
+            && !mCaptureKeyPressed) {
+            mCaptureKeyPressed = true;
+            eventWasConsumed = true;
+            emit q->captureKeyPressed();
+        }
+    } else if (event->type() == QEvent::KeyRelease) {
+        QKeyEvent *keyEvent = static_cast<QKeyEvent*> (event);
+
+        if ( mPrimaryCameraAutofocusKeys.contains(keyEvent->nativeScanCode())
+            && mAutofocusKeyPressed ) {
+
+            mAutofocusKeyPressed = false;
+            eventWasConsumed = true;
+            emit q->autofocusKeyReleased();
+
+        } else if (mPrimaryCameraCaptureKeys.contains(keyEvent->nativeScanCode())
+            && mCaptureKeyPressed) {
+
+            mCaptureKeyPressed = false;
+            eventWasConsumed = true;
+            emit q->captureKeyReleased();
+        }
+    }
+    CX_DEBUG_EXIT_FUNCTION();
+    return eventWasConsumed;
+}
+
+/*!
+* Helper method to listen to given key (key code or scan code).
+* We need to listen to both "key up", "key down" and "key pressed" events to
+* get all the necessary events to handleKeyEvent(). If we e.g. just listen
+* to up/down events, the way native events are translated to QKeyEvents,
+* we only get QEvent::KeyRelease event when partially in background.
+* @param key Keycode or scancode for the key to listen. Both should be listened.
+*/
+void CxuiCaptureKeyHandlerPrivate::listenKey(int key)
+{
+    // Capture key down and up events
+    int handle = mWindowGroup.CaptureKeyUpAndDowns(key, 0, 0, CXUI_KEY_PRIORITY);
+
+    // Handle < 0 means error.
+    if (handle >= 0) {
+        mCapturedKeyUpDownHandles.append(handle);
+    } else {
+        CX_DEBUG(("[WARNING] CxuiCaptureKeyHandlerPrivate - Problem hooking to key-up/key-down with code: %d", key));
+    }
+
+    // Capture key press events
+    handle = mWindowGroup.CaptureKey(key, 0, 0, CXUI_KEY_PRIORITY);
+
+    if (handle >= 0) {
+        mCapturedKeyHandles.append(handle);
+    } else {
+        CX_DEBUG(("[WARNING] CxuiCaptureKeyHandlerPrivate - Problem hooking to key-press with code: %d", key));
+    }
+}
+
+// end of file