--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxui/src/cxuicapturekeyhandler_symbian_p.cpp Wed Aug 18 09:37:18 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