diff -r 000000000000 -r dd21522fd290 webengine/osswebengine/WebKit/s60/webview/WebScrollbarDrawer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebKit/s60/webview/WebScrollbarDrawer.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,470 @@
+/*
+* Copyright (c) 2009 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 <../bidi.h>
+#include <AknUtils.h>
+#include <e32cmn.h>
+#include "WebScrollbarDrawer.h"
+#include "WebView.h"
+#include "WebFrame.h"
+#include "WebFrameView.h"
+#include "BrCtl.h"
+#include "StaticObjectsContainer.h"
+#include "WebSurface.h"
+
+#include "WebKitLogger.h"
+
+const int     KScrollbarWidth = 15;
+const TUint32 KMinScrollBarTransparency = 150;
+const int     KScrollBarFadeInterval = 30000;
+const TInt32  KScrollBarTransparencyStep = 10;
+const int     KMinThumbSize = 30;
+
+int handleFadeScrollBar(TAny* ptr);
+
+using namespace WebCore;
+
+WebScrollbarDrawer* WebScrollbarDrawer::NewL()
+{
+  WebScrollbarDrawer* self = new(ELeave) WebScrollbarDrawer();
+  CleanupStack::PushL(self);
+  self->ConstructL();
+  CleanupStack::Pop(); //self
+  return self;
+}
+
+
+void WebScrollbarDrawer::ConstructL()
+{
+  m_scrollBarFader = CPeriodic::NewL(CActive::EPriorityStandard);
+}
+
+
+
+WebScrollbarDrawer::WebScrollbarDrawer(): 
+                                        m_webView(NULL),
+                                        m_scrollBarTransparency(KMinScrollBarTransparency),
+                                        m_scrollBarWidth(KScrollbarWidth),
+                                        m_dX(0), m_dY(0)
+{
+}
+
+
+
+WebScrollbarDrawer::~WebScrollbarDrawer()
+{
+  if (m_scrollBarFader) {
+      m_scrollBarFader->Cancel();
+  }
+  delete m_scrollBarFader;
+  
+  removeBitmaps();  
+}
+
+
+void WebScrollbarDrawer::removeBitmaps()
+{
+  deleteBitmap(m_scrollBarV, m_gcV, m_devV);
+  deleteBitmap(m_scrollBarVMask, m_gcVMask, m_devVMask);
+
+  deleteBitmap(m_scrollBarH, m_gcH, m_devH);
+  deleteBitmap(m_scrollBarHMask, m_gcHMask, m_devHMask);
+	
+}
+
+TInt WebScrollbarDrawer::InitScrollbar(WebView* view)
+{
+  TInt err = KErrNone;
+  m_hasVScroll = EFalse;
+  m_hasHScroll = EFalse;
+  m_webView = view;  
+  m_scrollBarTransparency = KMinScrollBarTransparency;
+  m_dY = 0.0;
+  m_dX = 0.0;
+  calculateBitmapRects();
+  
+  err = SetupBitmaps();
+  
+  if (err == KErrNone) {
+      constructSprite(m_spriteV, m_rectVThum.iTl, m_scrollBarV, m_scrollBarVMask);
+      constructSprite(m_spriteH, m_rectHThum.iTl, m_scrollBarH, m_scrollBarHMask);
+  }
+  
+  return err;
+}
+
+
+int WebScrollbarDrawer::fadeTime()
+{
+    return KScrollBarFadeInterval;
+}
+
+void WebScrollbarDrawer::fadeScrollbar()
+{
+  if (m_hasVScroll || m_hasHScroll) {
+    if (!m_scrollBarFader->IsActive()) {
+      m_scrollBarFader->Start(0, KScrollBarFadeInterval, 
+                              TCallBack(&handleFadeScrollBar, this));
+    }
+  }
+  else {
+    m_scrollBarTransparency = 255;
+    fade();
+  }
+}
+
+
+int handleFadeScrollBar(TAny* ptr)
+{
+  (static_cast<WebScrollbarDrawer*>(ptr))->fade();	
+  return EFalse;
+}
+
+
+void WebScrollbarDrawer::clearSprites()
+{
+   m_spriteV.Close();
+   m_spriteH.Close();
+}
+
+void WebScrollbarDrawer::fade()
+{
+  m_scrollBarTransparency += KScrollBarTransparencyStep;
+  if (m_scrollBarTransparency >= 255) {
+    m_scrollBarFader->Cancel();
+    clearSprites();
+    removeBitmaps();
+    if (m_webView) {
+      m_webView->syncRepaint(m_webView->mainFrame()->frameView()->visibleRect());
+      m_webView = NULL;
+    }
+    m_hasVScroll = EFalse;
+    m_hasHScroll = EFalse;
+  }
+  else {
+    
+    if (m_hasVScroll) {
+      drawThumbMask(m_gcVMask, m_rectVThum);
+      updateSprite(m_spriteV, m_scrollBarV, m_scrollBarVMask);
+    }
+    
+    if (m_hasHScroll) {
+      drawThumbMask(m_gcHMask, m_rectHThum);
+      updateSprite(m_spriteH, m_scrollBarH, m_scrollBarHMask);
+    }
+  }
+}
+
+void WebScrollbarDrawer::redrawScrollbar()
+{
+    TInt err = KErrNone;
+    calculateBitmapRects();
+    removeBitmaps();
+    err = SetupBitmaps();
+    if (err == KErrNone) {
+        m_spriteV.SetPosition(m_rectVThum.iTl);
+        updateSprite(m_spriteV, m_scrollBarV, m_scrollBarVMask);
+        m_spriteH.SetPosition(m_rectHThum.iTl);
+        updateSprite(m_spriteH, m_scrollBarH, m_scrollBarHMask);
+    }
+    else {
+        clearSprites();
+    }
+}
+
+void WebScrollbarDrawer::drawScrollbar(WebView* view, TPoint& scrollPos) 
+{
+  if (!(view->brCtl()->capabilities() & TBrCtlDefs::ECapabilityDisplayScrollBar)) {
+    return;  
+  }
+
+  if (m_scrollBarFader->IsActive()) {
+    m_scrollBarFader->Cancel();
+    clearSprites();
+    removeBitmaps();
+    m_hasVScroll = EFalse;
+    m_hasHScroll = EFalse;
+    m_webView = NULL;
+  }
+
+  if (!m_webView) {
+    InitScrollbar(view);
+  }
+  
+  if (!m_hasHScroll) { //set it only once
+    m_hasHScroll = (scrollPos.iX != 0) && (m_displayWidth < m_docWidth);
+  }
+  
+  if (!m_hasVScroll) {  //set it only once
+    m_hasVScroll = (scrollPos.iY != 0) && (m_displayHeight < m_docHeight);
+  }
+
+  if ((scrollPos.iY != 0) && (m_displayHeight < m_docHeight)) {
+    m_dY += m_zoomFactor * ((float)scrollPos.iY * (float)m_displayHeight ) / (float)m_docHeight / 100;
+
+    if (m_rectVThum.iTl.iY + m_dY < m_rectV.iTl.iY) {
+        m_dY = m_rectV.iTl.iY - m_rectVThum.iTl.iY; 
+    }
+    else if (m_rectVThum.iBr.iY + m_dY > m_rectV.iBr.iY) {
+        m_dY = m_rectV.iBr.iY - m_rectVThum.iBr.iY;
+    }
+    else if ((m_rectVThum.iTl.iY + m_dY == m_rectV.iTl.iY) ||
+            (m_rectVThum.iBr.iY + m_dY == m_rectV.iBr.iY)) {
+        m_dY = 0.0;        
+    }
+    
+    
+    if (Abs(m_dY) > 1) { 
+      m_rectVThum.Move(0, m_dY);
+      m_dY = 0.0;
+    }
+    
+    m_spriteV.SetPosition(m_rectVThum.iTl);
+    updateSprite(m_spriteV, m_scrollBarV, m_scrollBarVMask);
+  }
+  
+  
+  if ((scrollPos.iX != 0) && (m_displayWidth < m_docWidth)) {
+    m_dX = m_zoomFactor * ((float)scrollPos.iX * (float)m_displayWidth ) / (float)m_docWidth / 100;
+    
+    if (m_rectHThum.iTl.iX + m_dX < m_rectH.iTl.iX) {
+        m_dX = m_rectH.iTl.iX - m_rectHThum.iTl.iX; 
+    }
+    else if (m_rectHThum.iBr.iX + m_dX > m_rectH.iBr.iX) {
+        m_dX = m_rectH.iBr.iX - m_rectHThum.iBr.iX;
+    }
+    else if ((m_rectHThum.iTl.iX + m_dX == m_rectH.iTl.iX) ||
+             (m_rectHThum.iBr.iX + m_dX == m_rectH.iBr.iX)) {
+        m_dX = 0.0;         
+    }
+    
+    
+    if (Abs(m_dX) > 1) {
+      m_rectHThum.Move(m_dX, 0);
+    }
+
+    m_spriteH.SetPosition(m_rectHThum.iTl);
+    updateSprite(m_spriteH, m_scrollBarH, m_scrollBarHMask);
+  }
+  
+  
+  
+}
+
+void WebScrollbarDrawer::constructSprite(RWsSprite& sprite, TPoint& pos,
+		                                 CFbsBitmap* bitmap, CFbsBitmap* bitmapMask)
+{
+  sprite = RWsSprite(m_webView->brCtl()->CCoeControlParent()->ControlEnv()->WsSession());
+  RDrawableWindow *window =  (RDrawableWindow* )m_webView->brCtl()->CCoeControlParent()->DrawableWindow();
+  sprite.Construct(*window, pos, ESpriteNoChildClip);
+  
+  TSpriteMember spriteMem;
+  spriteMem.iBitmap = 0;//bitmap;
+  spriteMem.iMaskBitmap = 0;//bitmapMask;
+  spriteMem.iInvertMask = EFalse;
+
+  sprite.AppendMember(spriteMem);
+  sprite.Activate();
+}
+
+void WebScrollbarDrawer::updateSprite(RWsSprite& sprite, CFbsBitmap* bitmap, 
+                                      CFbsBitmap* bitmapMask)
+{
+  TSpriteMember spriteMem;
+  spriteMem.iBitmap = bitmap;
+  spriteMem.iMaskBitmap = bitmapMask;
+  spriteMem.iInvertMask = ETrue;  
+  sprite.UpdateMember(0, spriteMem);
+}
+
+TInt WebScrollbarDrawer::createBitmap(CFbsBitmap*& bm, CFbsBitGc*& gc, 
+		                               CFbsBitmapDevice*& dev, TRect& rect)
+{
+  TInt err = KErrNone;
+  bm = new CFbsBitmap();
+  if (!bm) {
+      err = KErrNoMemory;
+  }
+  if (err == KErrNone) {
+      bm->Create(rect.Size(), EColor256);
+  }
+  TRAP(err, dev = CFbsBitmapDevice::NewL(bm));
+  if (err == KErrNone && dev != NULL) {
+    err = dev->CreateContext(gc);
+  }
+  if (err != KErrNone) {
+      delete dev;
+  }
+  return err;
+}
+
+
+void WebScrollbarDrawer::deleteBitmap(CFbsBitmap*& bm, CFbsBitGc*& gc, 
+		                               CFbsBitmapDevice*& dev)
+{
+  if (bm) {
+    delete bm;
+    bm = NULL;
+  }
+  
+  if (gc) {
+    delete gc;
+    gc = NULL;
+  }
+	
+  if (dev) {
+    delete dev;
+    dev = NULL;
+  }
+}
+
+TInt WebScrollbarDrawer::SetupBitmaps()
+{
+  TInt err = KErrNone;
+  if (!m_scrollBarV) {
+    err = createBitmap(m_scrollBarV, m_gcV, m_devV, m_rectVThum);
+  }
+  
+  if (!m_scrollBarVMask && err == KErrNone) {
+    err = createBitmap(m_scrollBarVMask, m_gcVMask, m_devVMask, m_rectVThum);
+  }
+  
+  if (err == KErrNone) {
+      drawThumb(m_gcV, m_rectVThum);
+      drawThumbMask(m_gcVMask, m_rectVThum);
+  }
+
+  if (!m_scrollBarH && err == KErrNone) {
+    err = createBitmap(m_scrollBarH, m_gcH, m_devH, m_rectHThum);
+  }
+    
+  if (!m_scrollBarHMask && err == KErrNone) {
+    err = createBitmap(m_scrollBarHMask, m_gcHMask, m_devHMask, m_rectHThum);
+  }
+  
+  if (err == KErrNone) {
+      drawThumb(m_gcH, m_rectHThum);
+      drawThumbMask(m_gcHMask, m_rectHThum);
+  }
+  
+  return err;
+}
+
+
+void WebScrollbarDrawer::calculateBitmapRects()
+{
+  m_zoomFactor =  ((float)m_webView->scalingFactor() / 100);
+  m_rect.SetRect(m_webView->brCtl()->Rect().iTl,
+		         m_webView->brCtl()->Rect().Size());
+  int delta = 0;
+  int posX = m_zoomFactor * m_webView->mainFrame()->frameView()->contentPos().iX;
+  int posY = m_zoomFactor * m_webView->mainFrame()->frameView()->contentPos().iY;
+  m_docWidth = m_zoomFactor * m_webView->mainFrame()->frameView()->contentSize().iWidth;
+  m_displayWidth = m_rect.Width();
+  m_docHeight = m_zoomFactor * m_webView->mainFrame()->frameView()->contentSize().iHeight;
+  m_displayHeight = m_rect.Height();
+    
+  m_docHeight = (m_displayHeight > m_docHeight) ? m_displayHeight : m_docHeight;
+  m_docWidth = (m_displayWidth > m_docWidth) ? m_displayWidth : m_docWidth;
+  
+  bool shouldHaveHScroll = (m_displayWidth < m_docWidth); 
+  bool shouldHaveVScroll = (m_displayHeight < m_docHeight);
+  TPoint vThumbTl;
+  TPoint hThumbTl;
+  
+  if (AknLayoutUtils::LayoutMirrored()) {
+    if (shouldHaveHScroll) { //horizontal scroll bar
+      delta = shouldHaveVScroll ? m_scrollBarWidth : 0; //to ajust thumb and scrollbar rect
+      m_rectH.SetRect(0 + delta, m_rect.Height() - m_scrollBarWidth, m_rect.Width(), m_rect.Height());
+      hThumbTl.SetXY(m_scrollBarWidth + (posX * m_rectH.Width()) / m_docWidth, 
+	                 m_rect.Height() - m_scrollBarWidth);
+    }
+    
+    if (shouldHaveVScroll) {
+      delta = shouldHaveHScroll ? m_scrollBarWidth : 0; //to ajust thumb and scrollbar rect
+      m_rectV.SetRect(0, 0, m_scrollBarWidth, m_rect.Height() - delta);
+      vThumbTl.SetXY(0, (posY * m_rectV.Height()) / m_docHeight);
+    }
+  }
+  else {
+    if (shouldHaveHScroll) {
+      delta = shouldHaveVScroll ? m_scrollBarWidth : 0; //to ajust thumb and scrollbar rect
+      m_rectH.SetRect(0, m_rect.Height() - m_scrollBarWidth, 
+                    m_rect.Width() - delta, m_rect.Height());
+      hThumbTl.SetXY((posX * m_rectH.Width()) / m_docWidth, 
+                     m_rect.Height() - m_scrollBarWidth);
+    }   
+    
+    if (shouldHaveVScroll) {
+      delta = shouldHaveHScroll ? m_scrollBarWidth : 0; //to ajust thumb and scrollbar rect
+      m_rectV.SetRect(m_rect.Width() - m_scrollBarWidth, 0, 
+   		              m_rect.Width(), m_rect.Height() - delta);
+      vThumbTl.SetXY(m_rect.Width() - m_scrollBarWidth, 
+                     ((posY * m_rectV.Height()) / m_docHeight));
+    }
+  }
+  
+  if (shouldHaveHScroll) {
+    int thW = ((float)m_rectH.Width() * m_displayWidth) / m_docWidth;
+    thW = (thW < KMinThumbSize) ? KMinThumbSize : thW;
+    m_rectHThum.SetRect(hThumbTl, TSize(thW, m_scrollBarWidth));       
+    if (m_rectHThum.iBr.iX > m_rectH.iBr.iX) {
+      m_rectHThum.Move(m_rectH.iBr.iX - m_rectHThum.iBr.iX, 0);
+    }
+  }
+  
+  if (shouldHaveVScroll) {
+    int thH = ((float)m_rectV.Height() * m_displayHeight) / m_docHeight;
+    thH = (thH < KMinThumbSize) ? KMinThumbSize : thH;
+    m_rectVThum.SetRect(vThumbTl, TSize(m_scrollBarWidth, thH));
+    if (m_rectVThum.iBr.iY > m_rectV.iBr.iY) {
+      m_rectVThum.Move(0, m_rectV.iBr.iY - m_rectVThum.iBr.iY);
+    }
+  }
+}
+
+
+void WebScrollbarDrawer::drawThumb(CBitmapContext* gc, TRect& rect)
+{
+  TRect r(TPoint(0, 0), rect.Size());
+  gc->SetBrushStyle(CGraphicsContext::ESolidBrush);
+  gc->SetPenStyle(CGraphicsContext::ESolidPen);
+  gc->SetPenSize(TSize(2,2));
+  gc->SetPenColor(TRgb(242, 242, 242));
+  gc->SetBrushColor(TRgb(10, 10, 10));
+  gc->DrawRoundRect(r, TSize(7, 7));
+ 
+}
+
+
+
+void WebScrollbarDrawer::drawThumbMask(CBitmapContext* gc, TRect& rect)
+{
+  TRect r(TPoint(0, 0), rect.Size());
+  TRgb  penMaskColor = TRgb(m_scrollBarTransparency, m_scrollBarTransparency, m_scrollBarTransparency);
+  TRgb  brushMaskColor = TRgb(m_scrollBarTransparency, m_scrollBarTransparency, m_scrollBarTransparency);;
+
+  gc->SetBrushStyle(CGraphicsContext::ESolidBrush);
+  gc->SetPenStyle(CGraphicsContext::ESolidPen);
+  gc->SetBrushColor(brushMaskColor);
+  gc->SetPenSize(TSize(2,2));
+  gc->SetPenColor(TRgb(5, 5, 5));
+  gc->DrawRoundRect(r, TSize(7, 7));
+}
+