/*
* 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 "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: Message editor contents widget
*
*/

#include "nmuiheaders.h"

// Layout
static const char *NMUI_EDITOR_BODY = "BodyTextEdit";

static const double Un = 6.66;
static const double HeaderAreaMarginsTotal = 3 * Un;

/*!
    Constructor
*/
NmEditorContent::NmEditorContent(QGraphicsItem *parent,
                                 NmEditorView *parentView,
                                 HbDocumentLoader *documentLoader) :
    HbWidget(parent),
    mHeaderWidget(NULL),
    mParentView(parentView),
    mEditorLayout(NULL),
    mMessage(NULL),
    mMessageBodyType(PlainText),
    mEditorWidget(NULL),
    mBackgroundScrollArea((NmBaseViewScrollArea*)parent)
{
    mBackgroundScrollArea->setLongPressEnabled(true);

    // Add header area handling widget into layout
    mHeaderWidget = new NmEditorHeader(documentLoader, this);

    // Get pointer to body text area handling widget
    mEditorWidget = qobject_cast<NmEditorTextEdit *>(documentLoader->findWidget(NMUI_EDITOR_BODY));
    mEditorWidget->init(this, mBackgroundScrollArea);
    
    // Remove the comment to enable style picker menu item.
    mEditorWidget->setFormatDialog(new HbFormatDialog());

    // Create signal slot connections
    createConnections();
}

/*!
    Destructor
*/
NmEditorContent::~NmEditorContent()
{
   delete mHeaderWidget;
}

/*!
    Fill message data into header and body fileds
 */
void NmEditorContent::setMessageData(NmMessage *message)
{
    if(message)	{
        mMessage = message;
        // Check which part is present. Html or plain text part
        NmMessagePart *htmlPart = mMessage->htmlBodyPart();
        NmMessagePart *plainPart = mMessage->plainTextBodyPart();

        QList<NmMessagePart*> parts;
        mMessage->attachmentList(parts);
        NmMessagePart* attachmentHtml = NULL;

        foreach(NmMessagePart* part, parts) {
            if (part->contentDescription().startsWith( NmContentDescrAttachmentHtml )) {
                    attachmentHtml = part;
                }
            }
        
        if (htmlPart) {	    
            // Html part was present, set it to HbTextEdit
            // This will generate contentsChanged() event which is used to
            // set new height for the editor widget and content.
            if(attachmentHtml){
                QString htmlText = htmlPart->textContent() + attachmentHtml->textContent();
                emit setHtml(htmlText);
            }
            else{
                emit setHtml(htmlPart->textContent());    
            }

            mMessageBodyType = HTMLText;
        }
        else if (plainPart) {
            // Plain text part was present, set it to HbTextEdit
            emit setPlainText(plainPart->textContent());
            mMessageBodyType = PlainText;
        }
    }
}

/*!
   This method set new height for the editor content when header or body field
   height has been changed.
 */
void NmEditorContent::setEditorContentHeight()
{
	const QSizeF reso = HbDeviceProfile::current().logicalSize();
    qreal containerHeight =
        mEditorWidget->contentHeight() + mHeaderWidget->headerHeight() + HeaderAreaMarginsTotal;
    if (containerHeight < reso.height()) {
        //Currently content height is too long because Chrome hiding is not supported.
        //Fix this when Chrome works.
        containerHeight = reso.height();
        qreal bodyContentHeight =
            reso.height() - mHeaderWidget->headerHeight() - HeaderAreaMarginsTotal;
        mEditorWidget->setPreferredHeight(bodyContentHeight);
        mEditorWidget->setMaximumHeight(bodyContentHeight);
    }
    mParentView->scrollAreaContents()->setMinimumHeight(containerHeight);
    mParentView->scrollAreaContents()->setMaximumHeight(containerHeight);
    mBackgroundScrollArea->setMaximumHeight(containerHeight);
}

/*!
   This method creates all needed signal-slot connections
 */
void NmEditorContent::createConnections()
{
    // Body edit widget is also interested about bg scroll position change
    connect(mBackgroundScrollArea, SIGNAL(scrollPositionChanged(QPointF)),
            mEditorWidget, SLOT(updateScrollPosition(QPointF)));
    // Signal for setting HbTextEdit widgets html content
    connect(this, SIGNAL(setHtml(QString)),
            mEditorWidget, SLOT(setHtml(QString)));
    // Signal for setting HbTextEdit widgets plain text content
    connect(this, SIGNAL(setPlainText(QString)),
            mEditorWidget, SLOT(setPlainText(QString)));
    // Inform text edit widget that header height has been changed
    connect(mHeaderWidget, SIGNAL(headerHeightChanged(int)),
            mEditorWidget, SLOT(setHeaderHeight(int)));
}

/*!
    Return pointer to the email body text edit widget
 */
NmEditorTextEdit* NmEditorContent::editor() const
{
    return mEditorWidget;
}

/*!
    Return pointer to the header widget
 */
NmEditorHeader* NmEditorContent::header() const
{
    return mHeaderWidget;
}