symhelp/helpmodel/tsrc/thelpviewctrls.cpp
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     1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // THelpViewCtrls module
       
    15 // 
       
    16 //
       
    17 
       
    18 #include "thelpviewctrls.h"
       
    19 
       
    20 // System includes
       
    21 #include <techview/eikcmbut.h>
       
    22 #include <techview/eikedwin.h>
       
    23 //
       
    24 #include "hlpmodel.h"
       
    25 
       
    26 // Constants
       
    27 const TInt KTimeOutPeriod = 10000000; // Ten seconds
       
    28 
       
    29 // Literal constants
       
    30 _LIT(KDoneCaption, "Done");
       
    31 
       
    32 
       
    33 //
       
    34 // ----> CHlpSearchPrompt (header)
       
    35 //
       
    36 
       
    37 CHlpSearchPrompt::CHlpSearchPrompt()
       
    38 	{
       
    39 	}
       
    40 
       
    41 CHlpSearchPrompt::~CHlpSearchPrompt()
       
    42 	{
       
    43 	iHideTimer->Cancel();
       
    44 	delete iHideTimer;
       
    45 	delete iEdwin;
       
    46 	}
       
    47 
       
    48 void CHlpSearchPrompt::ConstructL(CCoeControl& aParent)
       
    49 	{
       
    50 	CreateWindowL(&aParent);
       
    51 
       
    52 	iHideTimer = CPeriodic::NewL(CActive::EPriorityIdle);
       
    53 
       
    54 	iEdwin = new(ELeave) CEikEdwin();
       
    55 	iEdwin->SetContainerWindowL(*this);
       
    56 	iEdwin->ConstructL(0, 25, 140, 1);
       
    57 	iEdwin->CreateTextViewL();
       
    58 	iEdwin->SetObserver(this);
       
    59 	}
       
    60 
       
    61 //
       
    62 //
       
    63 //
       
    64 
       
    65 void CHlpSearchPrompt::ResetSearchL()
       
    66 	{
       
    67 	iEdwin->Text()->Reset();
       
    68 	iEdwin->NotifyNewDocumentL();
       
    69 	iEdwin->DrawNow();
       
    70 	}
       
    71 
       
    72 HBufC* CHlpSearchPrompt::SearchTextLC()
       
    73 	{
       
    74 	HBufC* buf = iEdwin->GetTextInHBufL();
       
    75 	CleanupStack::PushL(buf);
       
    76 	return buf;
       
    77 	}
       
    78 
       
    79 //
       
    80 //
       
    81 //
       
    82 
       
    83 void CHlpSearchPrompt::MakeVisible(TBool aVisible)
       
    84 	{
       
    85 	CCoeControl::MakeVisible(aVisible);
       
    86 	if	(!aVisible)
       
    87 		{
       
    88 		iHideTimer->Cancel();
       
    89 		ResetSearchL();       // Leaves if not visible
       
    90 		}
       
    91 	}
       
    92 
       
    93 void CHlpSearchPrompt::SizeChanged()
       
    94 	{
       
    95 	iEdwin->SetRect(Rect());
       
    96 	}
       
    97 
       
    98 TInt CHlpSearchPrompt::CountComponentControls() const
       
    99 	{
       
   100 	return 1;
       
   101 	}
       
   102 
       
   103 CCoeControl* CHlpSearchPrompt::ComponentControl(TInt/* aIndex*/) const
       
   104 	{
       
   105 	return iEdwin;
       
   106 	}
       
   107 
       
   108 TKeyResponse CHlpSearchPrompt::OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType)
       
   109 	{
       
   110 	if	(aKeyEvent.iCode == EKeyEnter && aType == EEventKey)
       
   111 		{
       
   112 		ReportEventL(EEventStateChanged);
       
   113 		return EKeyWasConsumed;
       
   114 		}
       
   115 	else if	(aKeyEvent.iCode == EKeyEscape && aType == EEventKey)
       
   116 		{
       
   117 		MakeVisible(EFalse);
       
   118 		return EKeyWasConsumed;
       
   119 		}
       
   120 	else
       
   121 		{
       
   122 		iHideTimer->Cancel();
       
   123 		iHideTimer->Start(KTimeOutPeriod, KTimeOutPeriod, TCallBack(HandleTimerExpiredL, this));
       
   124 		return iEdwin->OfferKeyEventL(aKeyEvent, aType);
       
   125 		}
       
   126 	}
       
   127 
       
   128 //
       
   129 //
       
   130 //
       
   131 
       
   132 void CHlpSearchPrompt::HandleControlEventL(CCoeControl* /*aControl*/, TCoeEvent /*aEventType*/)
       
   133 	{
       
   134 	}
       
   135 
       
   136 //
       
   137 //
       
   138 //
       
   139 
       
   140 TInt CHlpSearchPrompt::HandleTimerExpiredL(TAny* aSelf)
       
   141 	{
       
   142 	CHlpSearchPrompt* self = STATIC_CAST(CHlpSearchPrompt*, aSelf);
       
   143 	self->MakeVisible(EFalse);
       
   144 	return EFalse; // one shot
       
   145 	}
       
   146 
       
   147 
       
   148 
       
   149 
       
   150 
       
   151 
       
   152 
       
   153 
       
   154 
       
   155 //
       
   156 // ----> CHlpListBox (source)
       
   157 //
       
   158 
       
   159 CHlpListBox::CHlpListBox()
       
   160 	{
       
   161 	}
       
   162 
       
   163 CHlpListBox::~CHlpListBox()
       
   164 	{
       
   165 	delete iContent;
       
   166 	delete iButton;
       
   167 	delete iListBox;
       
   168 	}
       
   169 
       
   170 void CHlpListBox::ConstructL(CCoeControl& aParent)
       
   171 	{
       
   172 	SetContainerWindowL(aParent);
       
   173 
       
   174 	iButton = new(ELeave) CEikCommandButton();
       
   175 	iButton->SetContainerWindowL(*this);
       
   176 	iButton->SetTextL(KDoneCaption);
       
   177 	iButton->SetObserver(this);
       
   178 
       
   179 	iListBox = new(ELeave) CEikTextListBox();
       
   180 	iListBox->ConstructL(this, CEikListBox::ENoExtendedSelection);
       
   181 	iListBox->CreateScrollBarFrameL()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto);
       
   182 	iListBox->SetObserver(this);
       
   183 	}
       
   184 
       
   185 //
       
   186 // FROM CCoeControl
       
   187 //
       
   188 
       
   189 void CHlpListBox::SizeChanged()
       
   190 	{
       
   191 	TRect rect(Rect());
       
   192 	TSize size(rect.Size());
       
   193 	const TInt KButtonHeight = iButton->MinimumSize().iHeight;
       
   194 	iButton->SetExtent(rect.iTl, TSize(size.iWidth, KButtonHeight));
       
   195 	rect.iTl.iY += KButtonHeight;
       
   196 	iListBox->SetRect(rect);
       
   197 	}
       
   198 
       
   199 TInt CHlpListBox::CountComponentControls() const
       
   200 	{
       
   201 	return 2;
       
   202 	}
       
   203 
       
   204 CCoeControl* CHlpListBox::ComponentControl(TInt aIndex) const
       
   205 	{
       
   206 	if	(!aIndex)
       
   207 		return iListBox;
       
   208 	return iButton;
       
   209 	}
       
   210 
       
   211 TKeyResponse CHlpListBox::OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType)
       
   212 	{
       
   213 	return iListBox->OfferKeyEventL(aKeyEvent, aType);
       
   214 	}
       
   215 
       
   216 TSize CHlpListBox::MinimumSize()
       
   217 	{
       
   218 	return iButton->MinimumSize();
       
   219 	}
       
   220 
       
   221 //
       
   222 // NEW
       
   223 //
       
   224 
       
   225 const CHlpItem& CHlpListBox::HelpItemL() const
       
   226 	{
       
   227 	TInt index = iListBox->CurrentItemIndex();
       
   228 	if	(!iContent || index >= iContent->MdcaCount())
       
   229 		User::Leave(KErrNotFound);
       
   230 
       
   231 	// Return the topic id of the topic that the user is interested in
       
   232 	return *iContent->Item(index);
       
   233 	}
       
   234 
       
   235 void CHlpListBox::PopulateListBoxL(CHlpList* aContent)
       
   236 	{
       
   237 	SetContent(aContent);
       
   238 
       
   239 	CDesCArray* itemArray = STATIC_CAST(CDesCArray*, iListBox->Model()->ItemTextArray());
       
   240 	itemArray->Reset();
       
   241 
       
   242 	const TInt count = iContent->MdcaCount();
       
   243 	for(TInt i=0; i<count; i++)
       
   244 		{
       
   245 		itemArray->AppendL(iContent->MdcaPoint(i));
       
   246 		}
       
   247 
       
   248 	iListBox->HandleItemAdditionL();
       
   249 	iListBox->SetCurrentItemIndex(0); // first item
       
   250 	}
       
   251 
       
   252 //
       
   253 // FROM MCoeControlObserver
       
   254 //
       
   255 
       
   256 void CHlpListBox::HandleControlEventL(CCoeControl* aControl, TCoeEvent aEventType)
       
   257 	{
       
   258 	if	(aControl == iButton)
       
   259 		ReportEventL(EEventRequestExit);
       
   260 	else if (aControl == iListBox)
       
   261 		ReportEventL(aEventType);
       
   262 	}
       
   263 
       
   264 
       
   265 //
       
   266 // INTERNAL
       
   267 //
       
   268 
       
   269 void CHlpListBox::SetContent(CHlpList* aContent)
       
   270 	{
       
   271 	delete iContent;
       
   272 	iContent = aContent;
       
   273 	}