/*
* Copyright (c) 2006-2008 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "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:
*
*/
#include <browser_platform_variant.hrh>
#include "config.h"
#include "../../bidi.h"
#include <AknUtils.h>
#ifdef BRDO_TOUCH_ENABLED_FF
#include <touchfeedback.h>
#endif // BRDO_TOUCH_ENABLED_FF
#include "brctl.h"
#include <brctldefs.h>
#include "WebPointerEventHandler.h"
#include "WebView.h"
#include "WebFrame.h"
#include "WebFrameView.h"
#include "WebCursor.h"
#include "WebPopupDrawer.h"
#include "WebFormFillPopup.h"
#include "WebPageScrollHandler.h"
#include "WebFepTextEditor.h"
#include "WebCoreFrameBridge.h"
#include "StaticObjectsContainer.h"
#include "PluginSkin.h"
#include "WebUtil.h"
#include "Element.h"
#include "Document.h"
#include "Frame.h"
#include "FrameView.h"
#include "EventHandler.h"
#include "EventNames.h"
#include "HitTestResult.h"
#include "HitTestRequest.h"
#include "MouseEvent.h"
#include "WebPageFullScreenHandler.h"
#include "PluginSkin.h"
#include "PluginWin.h"
#include "WebFrameBridge.h"
#include "Page.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "FocusController.h"
#include "WebTabbedNavigation.h"
#include "SettingsContainer.h"
#include "PluginHandler.h"
#include "WebCoreGraphicsContext.h"
#include "GraphicsContext.h"
#include "RenderStyle.h"
#include "RenderObject.h"
#include "CSSStyleSelector.h"
#include "CSSValueKeywords.h"
#include "Settings.h"
#include "WebGestureInterface.h"
#include "WebPagePinchZoomHandler.h"
#include "WebKitLogger.h"
using namespace WebCore;
using namespace EventNames;
static const int KMinScrollAndTapInterval = 200000; // 200 ms
static const int KDoubleTapMinActivationInterval = 100000; // 100 ms
static const int KDoubleTapMaxActivationInterval = 500000; // 500 ms
static const int KDoubleTapIdleInterval = 700000; // 700 ms, to prevent triple-tap effects
#define IS_NAVIGATION_NONE (m_webview->brCtl()->settings()->getNavigationType() == SettingsContainer::NavigationTypeNone)
#define IS_TABBED_NAVIGATION (m_webview->brCtl()->settings()->getNavigationType() == SettingsContainer::NavigationTypeTabbed)
//-----------------------------------------------------------------------------
// WebPointerEventHandler::NewL
//-----------------------------------------------------------------------------
WebPointerEventHandler* WebPointerEventHandler::NewL(WebView* view)
{
WebPointerEventHandler* self = new (ELeave) WebPointerEventHandler(view);
CleanupStack::PushL( self );
self->ConstructL();
CleanupStack::Pop();
return self;
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::WebPointerEventHandler
//-----------------------------------------------------------------------------
WebPointerEventHandler::WebPointerEventHandler(WebView* view)
: m_webview(view),
m_isHighlighted(false),
m_highlightedNode(NULL),
m_buttonDownTimer( this, &WebPointerEventHandler::buttonDownTimerCB ),
m_ignoreTap(false),
m_gestureInterface(NULL)
{
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::~WebPointerEventHandler
//-----------------------------------------------------------------------------
WebPointerEventHandler::~WebPointerEventHandler()
{
delete m_gestureInterface;
delete m_waiter;
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::ConstructL
//-----------------------------------------------------------------------------
void WebPointerEventHandler::ConstructL()
{
#ifdef BRDO_USE_GESTURE_HELPER
m_gestureInterface = WebGestureInterface::NewL(m_webview);
#else
m_gestureInterface = NULL;
#endif
m_waiter = new(ELeave) CActiveSchedulerWait();
}
// ======================================================================
// WebPointerEventHandler::HandleGestureEventL
// ======================================================================
void WebPointerEventHandler::HandleGestureEventL(const TStmGestureEvent& aGesture)
{
TStmGestureUid uid = aGesture.Code();
if (m_webview->pinchZoomHandler()->isPinchActive() && uid != stmGesture::EGestureUidPinch)
return;
TBrCtlDefs::TBrCtlElementType elType = m_webview->focusedElementType();
PluginSkin* plugin = m_webview->mainFrame()->focusedPlugin();
if (plugin && plugin->pluginWin()) {
if (plugin->pluginWin()->HandleGesture(aGesture)) {
if(!plugin->isActive())
plugin->activate();
return;
}
}
updateCursor(aGesture.CurrentPos());
if (IS_TABBED_NAVIGATION) {
m_webview->tabbedNavigation()->updateCursorPosition(aGesture.CurrentPos());
}
switch(uid) {
case stmGesture::EGestureUidTouch:
{
if (m_webview->viewIsScrolling()) {
m_ignoreTap = true;
m_webview->pageScrollHandler()->handleTouchDownGH(aGesture);
}
else {
handleTouchDownL(aGesture);
}
break;
}
case stmGesture::EGestureUidTap:
{
if (aGesture.Type() == stmGesture::ETapTypeSingle) {
if (!m_ignoreTap) {
handleTapL(aGesture);
}
}
else {
handleDoubleTap(aGesture);
}
break;
}
case stmGesture::EGestureUidRelease:
{
m_ignoreTap = false;
handleTouchUp(aGesture);
break;
}
case stmGesture::EGestureUidPan:
{
handleMove(aGesture);
break;
}
case stmGesture::EGestureUidFlick:
{
m_ignoreTap = false;
if (!IS_NAVIGATION_NONE) {
handleTouchUp(aGesture);
}
else {
Frame* frm = m_webview->page()->focusController()->focusedOrMainFrame();
m_webview->sendMouseEventToEngine(TPointerEvent::EButton1Up, m_highlightPos, frm);
}
break;
}
case stmGesture::EGestureUidPinch:
{
handlePinchZoomL(aGesture);
break;
}
default:
break;
}
return;
}
// ======================================================================
// WebPointerEventHandler::handleTap
// ======================================================================
void WebPointerEventHandler::handleTapL(const TStmGestureEvent& aGesture)
{
m_buttonDownTimer.stop();
m_lastTapEvent = m_currentEvent;
if(!m_webview->inPageViewMode()){
doTapL();
}
}
// ======================================================================
// WebPointerEventHandler::handleDoubleTap
//======================================================================
void WebPointerEventHandler::handleDoubleTap(const TStmGestureEvent& aGesture)
{
if ( !m_webview->viewIsScrolling() &&
(m_webview->brCtl()->capabilities() & TBrCtlDefs::ECapabilityFitToScreen)) {
if (m_isHighlighted){
dehighlight();
}
m_webview->setZoomLevelAdaptively();
}
else {
m_webview->resetLastZoomLevelIfNeeded();
}
}
// ======================================================================
// WebPointerEventHandler::handleTouchDownL
//======================================================================
void WebPointerEventHandler::handleTouchDownL(const TStmGestureEvent& aGesture)
{
TBrCtlDefs::TBrCtlElementType elType = m_webview->focusedElementType();
PluginHandler* pluginHandler = WebCore::StaticObjectsContainer::instance()->pluginHandler();
PluginSkin* pluginToActivate = pluginHandler->pluginToActivate();
m_buttonDownEvent = m_currentEvent;
m_highlightPos = aGesture.CurrentPos();
if ( !m_buttonDownTimer.isActive() && !m_webview->inPageViewMode()){
m_buttonDownTimer.startOneShot(0.1f);
}
if (!IS_NAVIGATION_NONE) {
m_webview->pageScrollHandler()->handleTouchDownGH(aGesture);
}
if ( TBrCtlDefs::EElementActivatedObjectBox == elType) {
PluginSkin* plugin = m_webview->mainFrame()->focusedPlugin();
if (plugin && plugin->pluginWin()) {
if (!plugin->getClipRect().Contains(m_buttonDownEvent.iPosition)) {
plugin->deActivate();
}
else {
plugin->pluginWin()->HandlePointerEventL(m_buttonDownEvent);
}
}
}
/*
* After introducing "link selection" pointer down action is done in
* buttondown timer callback. When "down" gesture event is arrived we start
* timer end exit, so gesture helper is ready to deliver next gesture event.
* Meanwhile the processing of the first gesture event hasn't been finished yet.
* The gesture helper doesn't "know" about our plans to handle the event inside
* timer callback and only way for us to "tell" about this is to stop RunL()
* of CGestureEventSender (HandleGestureL() is inside it) and finish buttondown
* timer callback first.
*/
if ( m_buttonDownTimer.isActive()){
m_waiter->Start();
}
}
// ======================================================================
// WebPointerEventHandler::handleTouchUp
// ======================================================================
void WebPointerEventHandler::handleTouchUp(const TStmGestureEvent& aGesture)
{
m_highlightPos = TPoint(-1,-1);
m_highlightedNode = NULL;
PluginHandler* pluginHandler = WebCore::StaticObjectsContainer::instance()->pluginHandler();
pluginHandler->setPluginToActivate(NULL);
if (!IS_NAVIGATION_NONE) {
m_webview->pageScrollHandler()->handleTouchUpGH(aGesture);
}
}
// ======================================================================
// WebPointerEventHandler::handleMoveL
// ======================================================================
void WebPointerEventHandler::handleMove(const TStmGestureEvent& aGesture)
{
TBrCtlDefs::TBrCtlElementType elType = m_webview->focusedElementType();
TPoint curPos = aGesture.CurrentPos();
PluginHandler* pluginHandler = WebCore::StaticObjectsContainer::instance()->pluginHandler();
pluginHandler->setPluginToActivate(NULL);
m_buttonDownTimer.stop();
if (IS_NAVIGATION_NONE) {
Frame* frm = m_webview->page()->focusController()->focusedOrMainFrame();
m_webview->sendMouseEventToEngine(TPointerEvent::EMove, curPos, frm);
}
else {
HandleHighlightChange(curPos);
m_webview->pageScrollHandler()->handleScrollingGH(aGesture);
}
}
// ======================================================================
// WebPointerEventHandler::HandlePointerEventL
// ======================================================================
void WebPointerEventHandler::HandlePointerEventL(const TPointerEvent& aPointerEvent)
{
m_currentEvent = aPointerEvent;
if (m_webview->isSynchRequestPending()) {
return;
}
// Handle graphical history - should never happen, as HistoryView handles this event by itself
if ( m_webview->brCtl()->historyHandler()->historyController()->historyView()) {
return;
}
// Handle FormFill popup
if (m_webview->formFillPopup() && m_webview->formFillPopup()->IsVisible()) {
m_webview->formFillPopup()->HandlePointerEventL(aPointerEvent);
return;
}
#ifdef BRDO_USE_GESTURE_HELPER
m_gestureInterface->HandlePointerEventL(aPointerEvent);
#endif
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::HandleHighlightChange
//-----------------------------------------------------------------------------
void WebPointerEventHandler::HandleHighlightChange(const TPoint &aPoint)
{
if (!m_highlightedNode || !m_isHighlighted) return;
if (!canDehighlight(aPoint)) return;
dehighlight();
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::checkForEventListener
//-----------------------------------------------------------------------------
bool WebPointerEventHandler::checkForEventListener(WebCore::Node* node)
{
EventTargetNode* etnfound = NULL;
for (Node* np = node; np; np = np->parentNode()) {
//check for a mouseover event listener
if (np->isEventTargetNode()) {
if (m_webview->page()->chrome()->client()->elementVisibilityChanged()) {
return true;
}
}
}
return false;
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::highlitableElement
//-----------------------------------------------------------------------------
TBrCtlDefs::TBrCtlElementType WebPointerEventHandler::highlitableElement()
{
TRect elRect;
TBrCtlDefs::TBrCtlElementType elType = TBrCtlDefs::EElementNone;
Frame* coreFrame = core(m_webview->mainFrame());
WebCursor* cursor = StaticObjectsContainer::instance()->webCursor();
TPointerEvent event;
TPoint pos = cursor->position();
WebFrame* wfrm = cursor->getFrameAtPoint(pos);
Frame* frm = core(wfrm);
TPoint pt(wfrm->frameView()->viewCoordsInFrameCoords(pos));
TPoint nodePoint;
Element* eventNode = frm->document()->elementFromPoint(pt.iX, pt.iY);
if (m_isHighlighted){
dehighlight();
}
m_highlightedNode = NULL;
Node* retNode = 0;
frm->bridge()->getTypeFromElement(eventNode, elType, elRect, retNode);
if (elType == TBrCtlDefs::EElementNone) {
Node* n = wfrm->getClosestAnchorElement(cursor->position(), pos);
if (n) {
wfrm = cursor->getFrameAtPoint(pos);
frm = core(wfrm);
//eventNode = frm->document()->elementFromPoint(pos.iX, pos.iY);
TPoint newPos(wfrm->frameView()->viewCoordsInFrameCoords(pos));
eventNode = frm->document()->elementFromPoint(newPos.iX, newPos.iY);
frm->bridge()->getTypeFromElement(eventNode, elType, elRect, retNode);
TPoint nodePoint = n->getRect().Rect().Center();
m_offset = (pt.iX- nodePoint.iX)*(pt.iX- nodePoint.iX) +
(pt.iY- nodePoint.iY)*(pt.iY- nodePoint.iY);
}
}
m_highlightedNode = eventNode;
if (m_highlightedNode) {
m_highlightPos = pos;
m_buttonDownEvent.iPosition = m_highlightPos;
}
m_webview->setFocusedElementType(elType);
return elType;
}
// ======================================================================
// WebPointerEventHandler::isHighlitableElement
// ======================================================================
bool WebPointerEventHandler::isHighlitableElement(TBrCtlDefs::TBrCtlElementType& elType)
{
return (elType == TBrCtlDefs::EElementAnchor
|| elType == TBrCtlDefs::EElementInputBox
|| elType == TBrCtlDefs::EElementActivatedInputBox
|| elType == TBrCtlDefs::EElementButton
|| elType == TBrCtlDefs::EElementCheckBoxChecked
|| elType == TBrCtlDefs::EElementCheckBoxUnChecked
|| elType == TBrCtlDefs::EElementTextAreaBox
|| elType == TBrCtlDefs::EElementRadioButtonSelected
|| elType == TBrCtlDefs::EElementRadioButtonUnSelected
|| elType == TBrCtlDefs::EElementTelAnchor
|| elType == TBrCtlDefs::EElementMailtoAnchor
|| elType == TBrCtlDefs::EElementSmartLinkTel
|| elType == TBrCtlDefs::EElementSmartLinkEmail
|| elType == TBrCtlDefs::EElementSmartLinkVoip);
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::doTapL
//-----------------------------------------------------------------------------
void WebPointerEventHandler::doTapL()
{
TBrCtlDefs::TBrCtlElementType elType = m_webview->focusedElementType();
Frame* coreFrame = core(m_webview->mainFrame());
#ifdef BRDO_TOUCH_ENABLED_FF
if (m_isHighlighted)
{
MTouchFeedback* feedback = MTouchFeedback::Instance();
if (feedback)
{
feedback->InstantFeedback(ETouchFeedbackBasic);
}
}
#endif // BRDO_TOUCH_ENABLED_FF
if (!IS_NAVIGATION_NONE) {
m_webview->sendMouseEventToEngine(TPointerEvent::EMove, m_highlightPos, coreFrame);
}
/*
* We assume that if element visibility has been changed
* between "up" and "down" that means that some node event
* listener (onMouseOver etc) handling happened and we don't
* want to send a click (mouse press + mouse release) event.
* The exception is editable element, since we want VKB anyway
*/
if (!IS_NAVIGATION_NONE &&
elType != TBrCtlDefs::EElementActivatedInputBox &&
elType != TBrCtlDefs::EElementTextAreaBox &&
m_webview->page()->chrome()->client()->elementVisibilityChangedByMouse()) {
return;
}
m_lastTapEvent.iPosition = m_buttonDownEvent.iPosition;
m_lastTapEvent.iType = TPointerEvent::EButton1Up;
m_lastTapEvent.iModifiers = 0;
// don't pass the event if the text input is not in valid format
if (m_webview->fepTextEditor()->validateTextFormat()) {
if (!IS_NAVIGATION_NONE) {
// in case of navigation none button down was sent in buttonDownTimerCB()
m_webview->sendMouseEventToEngine(TPointerEvent::EButton1Down, m_highlightPos, coreFrame);
}
m_webview->sendMouseEventToEngine(TPointerEvent::EButton1Up, m_highlightPos, coreFrame);
}
// special handling for broken image (why is this here??)
if (elType == TBrCtlDefs::EElementBrokenImage) {
loadFocusedImage(m_webview);
}
else if (elType == TBrCtlDefs::EElementActivatedObjectBox) {
PluginSkin* plugin = m_webview->mainFrame()->focusedPlugin();
if(plugin && plugin->pluginWin() && plugin->getClipRect().Contains(m_lastTapEvent.iPosition)){
plugin->pluginWin()->HandlePointerEventL(m_lastTapEvent);
}
}
else {
m_webview->activateVirtualKeyboard();
}
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::deHighlight
//-----------------------------------------------------------------------------
void WebPointerEventHandler::dehighlight()
{
// send dehighlight event to engine by passing -1, -1
// sending any other pointer value may result in highligh of other links
m_highlightPos = TPoint(-1, -1);
m_isHighlighted = EFalse;
Frame* frm = m_webview->page()->focusController()->focusedOrMainFrame();
m_webview->sendMouseEventToEngine(TPointerEvent::EMove, m_highlightPos, frm);
m_highlightedNode = NULL;
m_webview->syncRepaint();
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::canDehighlight
//-----------------------------------------------------------------------------
bool WebPointerEventHandler::canDehighlight(const TPoint &aPoint)
{
TBool checkDehighlight = true;
if (!m_webview->viewIsScrolling())
{
WebFrame* frm = StaticObjectsContainer::instance()->webCursor()->getFrameUnderCursor();
IntPoint framePoint = frm->frameView()->viewCoordsInFrameCoords(aPoint);
if (m_highlightedNode->getRect().contains(framePoint)) {
checkDehighlight = false;
} // check if new points are coming towards closest element
else if(m_offset) {
//Calculate the new offset
IntPoint nodePoint = m_highlightedNode->getRect().Rect().Center();
TInt newoffset = (framePoint.x()- nodePoint.x())*(framePoint.x()- nodePoint.x()) + (framePoint.y()- nodePoint.y())*(framePoint.y()- nodePoint.y());
if(newoffset <= m_offset ) {
m_offset = newoffset;
checkDehighlight = false;
}
else {
m_offset =0;
checkDehighlight = true;
}
}
}
return checkDehighlight;
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::buttonDownTimerCallback
//-----------------------------------------------------------------------------
void WebPointerEventHandler::buttonDownTimerCB(Timer<WebPointerEventHandler>* t)
{
m_buttonDownTimer.stop();
Frame* coreFrame = core(m_webview->mainFrame());
TPointerEvent event;
TBrCtlDefs::TBrCtlElementType elType = highlitableElement();
if (!isHighlitableElement(elType)) {
elType = TBrCtlDefs::EElementNone;
}
m_isHighlighted = (m_highlightedNode != NULL) && (elType != TBrCtlDefs::EElementNone) ;
/*
* Tabbed navigation might already set the focused node.
* If it's the same as m_highlightedNode FocuseController::setFocusedNode()
* wouldn't do anything and setEditable won't be called.
* So we are setting focused node to NULL here and let mouse event handler
* set it through FocuseController::setFocusedNode()
*/
if (IS_TABBED_NAVIGATION &&
elType == TBrCtlDefs::EElementInputBox ||
elType == TBrCtlDefs::EElementTextAreaBox) {
coreFrame->document()->setFocusedNode(NULL);
}
if (!IS_NAVIGATION_NONE) {
m_webview->page()->chrome()->client()->setElementVisibilityChanged(false);
//to initiate hover
if (m_isHighlighted) {
setFocusRing();
}
}
else {
m_webview->sendMouseEventToEngine(TPointerEvent::EButton1Down, m_highlightPos, coreFrame);
}
if (m_waiter->IsStarted()) {
m_waiter->AsyncStop();
}
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::updateCursor
//----------------------------------------------------------------------------
void WebPointerEventHandler::updateCursor(const TPoint& pos)
{
WebCursor* cursor = StaticObjectsContainer::instance()->webCursor();
if (cursor) {
if (pos != TPoint(0, 0)) {
cursor->setPosition(pos);
}
if (m_webview->showCursor()) {
cursor->resetTransparency();
m_webview->setShowCursor(false);
cursor->cursorUpdate(false);
}
}
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::setFocusRing
//----------------------------------------------------------------------------
void WebPointerEventHandler::setFocusRing()
{
Element* e = static_cast<Element*>(m_highlightedNode);
RenderStyle* rs = e->renderStyle();
RenderStyle* style = new (e->document()->renderArena()) RenderStyle(*rs);
Color col(0xffaaaaff);
style->ref();
style->setOutlineColor(col);
style->setOutlineStyle(DOTTED, true);
style->setOutlineWidth(4);
style->setOutlineOffset(2);
e->setRenderStyle(style);
style->deref(e->document()->renderArena());
e->setChanged();
}
//-----------------------------------------------------------------------------
// WebPointerEventHandler::handlePinchZoom
//----------------------------------------------------------------------------
void WebPointerEventHandler::handlePinchZoomL(const TStmGestureEvent& aGesture)
{
//dehighlight anything which is highlighted already
if (m_isHighlighted){
dehighlight();
}
m_webview->pinchZoomHandler()->handlePinchGestureEventL(aGesture);
}