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package org.litesoft.GWT.forms.client.components.impls.input;
import org.litesoft.GWT.client.widgets.*;
import org.litesoft.GWT.client.widgets.nonpublic.*;
import org.litesoft.GWT.forms.client.components.nonpublic.*;
import org.litesoft.core.util.*;
import org.litesoft.uispecification.*;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;
public class FormTextarea extends AbstractTextElement
{
private DeckPanel mDeck;
private DisabledTextArea mDisabledTextArea;
public FormTextarea( String pFieldLabel, UiFont pLabelFont, String pTooltip, boolean pNoWrapContents, //
Integer pInitialWidth, boolean pWidthNotStretchable, //
Integer pInitialLines, boolean pHeightNotStretchable )
{
super( new TextAreaChangeListenable( pInitialWidth, pInitialLines, pNoWrapContents ), pTooltip, "frmTxtArea" );
mWidthHelper = pWidthNotStretchable ? NullWidthHelper.INSTANCE : new StretchableWidthHelper( this );
mHeightHelper = pHeightNotStretchable ? NullHeightHelper.INSTANCE : new StretchableHeightHelper( this );
mDisabledTextArea = new DisabledTextArea( pNoWrapContents );
mDeck = new MyDeckPanel( new SizingWrapper( mInputWidget, mInputWidget ), //
new SizingWrapper( mDisabledTextArea, mDisabledTextArea.getSizeablePanel() ) );
initialize( pFieldLabel, pLabelFont, pTooltip );
}
protected String buildInputRow( String pTrId, String pInputId, int pUniqueID )
{
return "<tr>" + //
"<td id='" + pInputId + "' class='litesoft-FormComponentInputRow'></td>" + //
"<td valign='top'>" + //
"<table cellpadding='0' cellspacing='0'>" + "<tr><td style='font-size:1px;'> </td></tr><tr id='" + pTrId + "' class='litesoft-FormComponentInputRow'></tr>" + //
"</table>" + //
"</td>" +//
"</tr>";
}
protected Widget getInjectedInputWidget()
{
return mDeck;
}
public void setEnabled( boolean pEnabled )
{
super.setEnabled( pEnabled );
if ( pEnabled )
{
enableTextArea();
}
else
{
disableTextArea();
}
}
public void disableTextArea()
{
copyValueToDisabledTextArea();
mDeck.showWidget( 1 );
}
public void enableTextArea()
{
mDeck.showWidget( 0 );
}
public String getValue()
{
return ((TextArea) mInputWidget).getText();
}
public void setCurrentText( String pNewText )
{
super.setCurrentText( pNewText );
if ( !isEnabled() )
{
copyValueToDisabledTextArea();
}
}
// Support...
private void copyValueToDisabledTextArea()
{
String value = getValue();
mDisabledTextArea.setText( convertDisplayText( value ) );
}
private String convertDisplayText( String pInput )
{
StringBuilder sb = new StringBuilder();
CharSource zCS = new CharSource( pInput );
while ( zCS.anyRemaining() )
{
int c = zCS.get();
if ( c == '\r' )
{
if ( '\n' == zCS.peek() )
{
continue;
}
sb.append( "<br>" );
}
else if ( (c == ' ') && (' ' == zCS.peek()) )
{
sb.append( " " );
}
else if ( c == '\n' )
{
sb.append( "<br>" );
}
else if ( c == '<' )
{
sb.append( "<" );
}
else
{
sb.append( (char) c );
}
}
sb.append( " " );
return sb.toString();
}
private static class StretchableHeightHelper extends AbstractHeightHelper
{
private FormTextarea mOurWidget;
private Integer mInputDecorationSize = null;
public StretchableHeightHelper( FormTextarea pOurWidget )
{
super( true );
mOurWidget = pOurWidget;
}
public void setDimension( int pDimension )
{
setDimension( mOurWidget, pDimension );
}
public int getDimension()
{
return getDimension( mOurWidget );
}
public int getDimensionMaxShrinkability()
{
return getDimension( mOurWidget.getInjectedInputWidget() ) - 6;
}
public int getDecorationSize()
{
return getDimension() - getDimension( mOurWidget.mDeck );
}
public void deligateSetDimensionFromWidget( int pDimension )
{
Label label = mOurWidget.mLabel;
if ( label != null )
{
pDimension -= getDimension( label );
}
pDimension -= getInputDecorationSize();
pDimension -= getOuterSandwichDecorationSize();
if ( pDimension > 6 )
{
setDimension( mOurWidget.getInjectedInputWidget(), pDimension );
}
}
private int getInputDecorationSize()
{
if ( mInputDecorationSize == null )
{
if ( !mOurWidget.isAttached() )
{
return 9999;
}
mInputDecorationSize = getDimension( getGrandParent( mOurWidget.getInjectedInputWidget() ) ) - //
getDimension( mOurWidget.getInjectedInputWidget() );
}
return mInputDecorationSize;
}
private Integer mOuterSandwichDecorationSize = null;
private int getOuterSandwichDecorationSize()
{
if ( mOuterSandwichDecorationSize == null )
{
if ( !mOurWidget.isAttached() )
{
return 9999;
}
Element zDivOrFS = mOurWidget.mInnerHTMLpanel.getElement();
int children = DOM.getChildCount( zDivOrFS );
Element zInnerBread = DOM.getChild( zDivOrFS, children - 1 );
mOuterSandwichDecorationSize = getDimension( mOurWidget ) - getDimension( zInnerBread );
}
return mOuterSandwichDecorationSize;
}
private Element getGrandParent( Widget pWidget )
{
return getGrandParent( pWidget.getElement() );
}
private Element getGrandParent( Element pElement )
{
return getParent( getParent( pElement ) );
}
private Element getParent( Element pElement )
{
return DOM.getParent( pElement );
}
}
private static class MyDeckPanel extends DeckPanel
{
private SizingWrapper mWidget0, mWidget1;
public MyDeckPanel( SizingWrapper pWidget0, SizingWrapper pWidget1 )
{
add( mWidget0 = pWidget0 );
add( mWidget1 = pWidget1 );
showWidget( 0 );
}
public void showWidget( int index )
{
super.showWidget( index );
mWidget0.shown( 0 == index );
mWidget1.shown( 1 == index );
}
public void setWidth( String width )
{
mWidget0.setWidth( width );
mWidget1.setWidth( width );
}
public void setHeight( String height )
{
mWidget0.setHeight( height );
mWidget1.setHeight( height );
}
// matg: commented out for GWT 1.5. Have to call super or DeckPanel breaks
// public void add( Widget w )
// {
// add( w, getElement() );
// w.setVisible( false );
// }
public void insert( Widget w, int beforeIndex )
{
throw new IllegalStateException( "Only use add( w )" );
}
}
private static class SizingWrapper extends HorizontalPanel
{
private SizeHelper mHeightHelper, mWidthHelper;
public SizingWrapper( Widget pChild, Widget pSizingWidget )
{
add( pChild );
mHeightHelper = new HeightHelper( this, pSizingWidget );
mWidthHelper = new WidthHelper( this, pSizingWidget );
}
public void shown( boolean pShown )
{
mHeightHelper.shown( pShown );
mWidthHelper.shown( pShown );
}
public void setWidth( String width )
{
mWidthHelper.setSize( width );
}
public void setHeight( String height )
{
mHeightHelper.setSize( height );
}
private static abstract class SizeHelper implements Command
{
private SizingWrapper mWrapper;
private Widget mSizingWidget;
private Integer mPendingSize = null;
private Integer mOverheadSize = null;
protected SizeHelper( SizingWrapper pWrapper, Widget pSizingWidget )
{
mWrapper = pWrapper;
mSizingWidget = pSizingWidget;
}
abstract protected int getSize( Widget pWidget );
abstract protected void setSize( Widget pWidget, int pSize );
public void setSize( String pSize )
{
try
{
mPendingSize = AbstractSizeableWidget.parse( pSize );
}
catch ( NumberFormatException e )
{
return;
}
applySize();
}
public void shown( boolean pShown )
{
if ( pShown )
{
applySize();
}
}
private boolean mDeferred = false;
private void applySize()
{
if ( mOverheadSize == null )
{
if ( shouldDefer() )
{
if ( !mDeferred )
{
mDeferred = true;
DeferredCommand.addCommand( this );
}
return;
}
int zWrapperSize = getSize( mWrapper );
int zSizingSize = getSize( mSizingWidget );
// System.out.println( this + ".applySize: " + zWrapperSize + "|" + zSizingSize );
mOverheadSize = zWrapperSize - zSizingSize;
}
if ( mPendingSize != null )
{
setSize( mSizingWidget, mPendingSize - mOverheadSize );
}
}
private boolean shouldDefer()
{
boolean zAttached = mWrapper.isAttached();
boolean zVisible = mWrapper.isVisible();
int zSize = getSize( mWrapper );
return !zAttached || !zVisible || (zSize < 20);
}
public void execute()
{
mDeferred = false;
applySize();
}
}
private static class HeightHelper extends SizeHelper
{
public HeightHelper( SizingWrapper pWrapper, Widget pSizingWidget )
{
super( pWrapper, pSizingWidget );
}
protected int getSize( Widget pWidget )
{
return pWidget.getOffsetHeight();
}
protected void setSize( Widget pWidget, int pSize )
{
pWidget.setHeight( "" + pSize );
}
}
private static class WidthHelper extends SizeHelper
{
public WidthHelper( SizingWrapper pWrapper, Widget pSizingWidget )
{
super( pWrapper, pSizingWidget );
}
protected int getSize( Widget pWidget )
{
return pWidget.getOffsetWidth();
}
protected void setSize( Widget pWidget, int pSize )
{
pWidget.setWidth( "" + pSize );
}
}
}
private static class DisabledTextArea extends SimplePanel
{
private InnerText mInnerTextAsHtml;
private Widget mSizeablePanel;
public DisabledTextArea( boolean pNoWrapContents )
{
//noinspection GWTStyleCheck
addStyleName( "litesoft-OuterDisabledTextArea" );
SimplePanel innerPanel = new SimplePanel();
//noinspection GWTStyleCheck
innerPanel.addStyleName( "litesoft-InnerDisabledTextArea" );
add( innerPanel );
mInnerTextAsHtml = new InnerText();
if ( pNoWrapContents )
{
SimplePanel zSimplePanel = new SimplePanel();
DOM.setStyleAttribute( zSimplePanel.getElement(), "overflow", "auto" );
DOM.setStyleAttribute( mInnerTextAsHtml.getElement(), "whiteSpace", "nowrap" );
zSimplePanel.add( mInnerTextAsHtml );
mSizeablePanel = zSimplePanel;
}
else
{
DOM.setStyleAttribute( mInnerTextAsHtml.getElement(), "overflow", "auto" );
mSizeablePanel = mInnerTextAsHtml;
}
innerPanel.add( mSizeablePanel );
mSizeablePanel.setSize( "50", "50" );
}
public Widget getSizeablePanel()
{
return mSizeablePanel;
}
public void setText( String pText )
{
if ( pText != null )
{
mInnerTextAsHtml.setText( pText );
}
}
public void setInnerHtml( String pText )
{
if ( pText != null )
{
DOM.setInnerHTML( mInnerTextAsHtml.getElement(), pText );
}
}
public void setWidth( String pWidth )
{
mSizeablePanel.setWidth( pWidth );
}
public void setHeight( String pHeight )
{
mSizeablePanel.setHeight( pHeight );
}
}
private static class InnerText extends Widget
{
public InnerText()
{
setElement( DOM.createDiv() );
//noinspection GWTStyleCheck
setStyleName( "litesoft-DisabledTextareaInnerText" );
}
public InnerText( String pText )
{
this();
setText( pText );
}
public void setText( String pText )
{
DOM.setInnerHTML( getElement(), pText );
}
}
}
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