webengine/osswebengine/WebKit/s60/webview/WebScrollingDeceleratorGH.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:56:45 +0200
changeset 42 d39add9822e2
parent 13 10e98eab6f85
child 64 ac77f89b1d9e
child 65 5bfc169077b2
permissions -rw-r--r--
Revision: 201003 Kit: 201005
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     1
/*
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     2
* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     3
* All rights reserved.
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     4
* This component and the accompanying materials are made available
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     5
* under the terms of the License "Eclipse Public License v1.0"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     6
* which accompanies this distribution, and is available
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     7
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     8
*
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
     9
* Initial Contributors:
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    10
* Nokia Corporation - initial contribution.
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    11
*
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    12
* Contributors:
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    13
*
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    14
* Description:   Implementation of scrolling decelerator
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    15
*
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    16
*/
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    17
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    18
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    19
// INCLUDE FILES
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    20
#include <../bidi.h>
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    21
#include "WebScrollingDeceleratorGH.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    22
#include "WebView.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    23
#include "WebFrame.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    24
#include "WebFrameView.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    25
#include "WebPageScrollHandler.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    26
#include "PlatformScrollbar.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    27
#include "WebScrollbarDrawer.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    28
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    29
#include "WebKitLogger.h"
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    30
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    31
// constants
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    32
const int KRecordSize = 4;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    33
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    34
// The following deceleration curve is generated by a script
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    35
// It lists the timeout dt values in microseconds.
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    36
const int KDecelCurveSize = 10;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    37
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    38
const int KScrollIntervalTimeout = 60000; // scroll timer interval in microseconds
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    39
42
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
    40
const float KDeccelerationLow = -350.0;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
    41
const float KDeccelerationHigh = -600.0;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
    42
const float KSpeedHigh = 2000.0;
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    43
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    44
int decelTimerCB(TAny* ptr);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    45
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    46
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    47
// ============================ MEMBER FUNCTIONS ===============================
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    48
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    49
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    50
// WebScrollingDeceleratorGH::NewL
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    51
// The two-phase Symbian constructor
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    52
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    53
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    54
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    55
WebScrollingDeceleratorGH* WebScrollingDeceleratorGH::NewL(WebView& webView)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    56
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    57
    WebScrollingDeceleratorGH* self = new (ELeave) WebScrollingDeceleratorGH(webView);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    58
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    59
    CleanupStack::PushL(self);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    60
    self->ConstructL();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    61
    CleanupStack::Pop(); //self
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    62
    return self;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    63
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    64
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    65
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    66
// WebScrollingDeceleratorGH::WebScrollingDeceleratorGH
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    67
// C++ default constructor can NOT contain any code, that
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    68
// might leave.
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    69
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    70
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    71
WebScrollingDeceleratorGH::WebScrollingDeceleratorGH(WebView& webView)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    72
:  m_webView( webView )
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    73
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    74
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    75
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    76
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    77
// WebScrollingDeceleratorGH::ConstructL
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    78
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    79
void WebScrollingDeceleratorGH::ConstructL()
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    80
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    81
    m_decelTimer = CPeriodic::NewL(CActive::EPriorityStandard);
42
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
    82
    m_deceleration = KDeccelerationHigh;
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    83
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    84
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    85
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    86
// Destructor
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    87
// -----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    88
WebScrollingDeceleratorGH::~WebScrollingDeceleratorGH()
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    89
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    90
    delete m_decelTimer;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    91
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    92
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    93
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    94
int WebScrollingDeceleratorGH::getDecceleration()
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    95
{
42
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
    96
   return  m_deceleration;  
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    97
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    98
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
    99
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   100
int decelTimerCB(TAny* ptr)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   101
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   102
    (static_cast<WebScrollingDeceleratorGH*>(ptr))->scroll();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   103
    return false;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   104
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   105
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   106
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   107
void WebScrollingDeceleratorGH::cancelDecel() 
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   108
{ 
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   109
    m_decelelatorSwitch = false;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   110
    if (m_decelTimer->IsActive()) {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   111
        m_decelTimer->Cancel();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   112
    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   113
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   114
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   115
void WebScrollingDeceleratorGH::startDecel(TRealPoint& speed, WebScrollbarDrawer* scrollbarDrawer)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   116
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   117
    m_decelelatorSwitch = true;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   118
    m_scrollbarDrawer = scrollbarDrawer;
42
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   119
    float speedX = speed.iX;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   120
    float speedY = speed.iY;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   121
    float absSpeedX = abs(speedX);
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   122
    float absSpeedY = abs(speedY);
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   123
    
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   124
    if (absSpeedX > KSpeedHigh) {
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   125
        speedX = KSpeedHigh * speedX/absSpeedX ;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   126
        m_deceleration = KDeccelerationLow;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   127
    }
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   128
    if (absSpeedY > KSpeedHigh) {
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   129
        speedY = KSpeedHigh * speedY/absSpeedY;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   130
        m_deceleration = KDeccelerationLow;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   131
    }
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   132
    
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   133
    m_initSpeed.iX = (-1) * speedX;
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   134
    m_initSpeed.iY = (-1) * speedY;
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   135
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   136
    m_numscrollsteps = 0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   137
    if (m_decelTimer->IsActive()) {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   138
        m_decelTimer->Cancel();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   139
    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   140
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   141
    WebFrameView* scrollingView = m_webView.pageScrollHandler()->currentScrollingFrameView();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   142
    if (scrollingView) {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   143
        m_startPos = scrollingView->contentPos();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   144
        m_lastPos = m_startPos;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   145
        m_decelTimer->Start(0, KScrollIntervalTimeout, 
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   146
                            TCallBack(&decelTimerCB, this));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   147
    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   148
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   149
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   150
void WebScrollingDeceleratorGH::scroll()
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   151
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   152
    if (!m_decelelatorSwitch) return;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   153
    // X = Vst*t - 0.5*a*(t * t)    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   154
    TPoint dist;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   155
    TReal32 intervalInSec = static_cast<TReal32>(KScrollIntervalTimeout) / 1000000;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   156
    TReal32 t = (m_numscrollsteps++) * intervalInSec;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   157
    TReal32 dx = 0.0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   158
    TReal32 dy = 0.0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   159
    TReal32 vx = 0.0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   160
    TReal32 vy = 0.0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   161
    TReal32 accelX = 0.0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   162
    TReal32 accelY = 0.0;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   163
    
42
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   164
    TReal32 deceleration = getDecceleration();
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   165
    
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   166
    if (m_initSpeed.iX) {
42
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   167
        accelX = (m_initSpeed.iX > 0) ?  deceleration : (-1) * deceleration;
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   168
        vx = m_initSpeed.iX + accelX * t;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   169
        dx = m_initSpeed.iX * t + 0.5 * accelX * (t * t);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   170
    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   171
        
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   172
    if (m_initSpeed.iY) {
42
d39add9822e2 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 13
diff changeset
   173
        accelY = (m_initSpeed.iY > 0) ?  deceleration : (-1) * deceleration;
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   174
        vy = m_initSpeed.iY + accelY * t;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   175
        dy = m_initSpeed.iY * t + 0.5 * accelY * (t * t);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   176
    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   177
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   178
    dist.SetXY(static_cast<TInt>(dx), static_cast<TInt>(dy));
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   179
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   180
    WebFrameView* scrollingView = m_webView.pageScrollHandler()->currentScrollingFrameView();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   181
    TPoint cpos = scrollingView->contentPos();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   182
    dist = scrollingView->toDocCoords(dist);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   183
    TPoint pos = m_startPos + dist;
13
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   184
   
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   185
    WebPageScrollHandler* handler = m_webView.pageScrollHandler();
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   186
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   187
    if ((vx * m_initSpeed.iX < 0) || (vy * m_initSpeed.iY < 0) || (vx + vy == 0) || 
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   188
        (m_numscrollsteps > 1 && !scrollingView->needScroll(pos) && 
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   189
        !handler->currentScrollingElement())) {
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   190
        if (m_scrollbarDrawer) {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   191
            m_scrollbarDrawer->fadeScrollbar();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   192
        }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   193
        m_decelTimer->Cancel();
13
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   194
        handler->clearScrollingElement();
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   195
        m_webView.setViewIsScrolling(false);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   196
        m_webView.toggleRepaintTimer(true);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   197
    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   198
    else {
13
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   199
        TPoint scrollDelta = pos - m_lastPos;
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   200
        handler->scrollContent(scrollDelta);
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   201
        m_lastPos = pos;
13
10e98eab6f85 Revision: 200919
Pat Downey <patrick.downey@nokia.com>
parents: 0
diff changeset
   202
    }  
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   203
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   204
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   205
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   206
//  End of File