litesoft
@ 947
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// This Source Code is in the Public Domain per: http://unlicense.org package org.litesoft.GWT.forms.client.components.impls.input; import org.litesoft.commonfoundation.html.*; import org.litesoft.commonfoundation.typeutils.*; import java.util.*; 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.*; import org.litesoft.core.simpletypes.*; import org.litesoft.ui.*; import org.litesoft.uispecification.*; import com.google.gwt.core.client.*; import com.google.gwt.dom.client.*; import com.google.gwt.event.dom.client.*; import com.google.gwt.user.client.*; import com.google.gwt.user.client.Element; import com.google.gwt.user.client.ui.*; public class FormRadioGroup extends AbstractFormElement implements ChangeHandler { protected final InfoIndicator mInfoIndicator = new InfoIndicator(); public FormRadioGroup( String pGroupLabel, UiFont pLabelFont, String pTooltip, SimpleKeyValuePair... pOptions ) { super( DOM.createFieldSet() ); mFieldLabel = pGroupLabel; mTooltip = pTooltip; int zInstanceNumber = StaticSimpleIdSource.getNext(); mInfoIndicator.setTooltip( Strings.deNull( pTooltip ).trim() ); pGroupLabel = Strings.noEmpty( pGroupLabel ); String zGroupName = "RadioGroup" + zInstanceNumber; String legendId = "lgnd" + zInstanceNumber; String legendHTML = (pGroupLabel == null) ? "" : "<legend id=" + legendId + " class='litesoft-FormComponentRadioGroupLegend'" + ApplyFont.toHtmlStyle( pLabelFont ) + "><img src='common/images/misc/TransparentSpacer_h18.gif'>" + pGroupLabel + "</legend>"; String html = legendHTML + "<div id='" + zGroupName + "'></div>"; initializeHTML( html ); if ( (legendHTML.length() != 0) && mInfoIndicator.mCanShow ) { mInnerHTMLpanel.add( mInfoIndicator, legendId ); } if ( pOptions != null ) { for ( SimpleKeyValuePair option : pOptions ) { if ( option != null ) { RadioButtonProxy radioButtonProxy = new RadioButtonProxy( zGroupName, option, this ); mRadioButtons.add( radioButtonProxy ); mInnerHTMLpanel.add( radioButtonProxy, zGroupName ); } } } if ( mRadioButtons.size() < 2 ) { throw new IllegalArgumentException( "Radio Groups Must have at least two options" ); } setDefaultSelection(); } public FormRadioGroup( String pGroupLabel, UiFont pLabelFont, String pTooltip, String... pOptions ) { this( pGroupLabel, pLabelFont, pTooltip, convertToKeyValuePairs( pOptions ) ); } private ArrayList<RadioButtonProxy> mRadioButtons = new ArrayList<RadioButtonProxy>(); private RadioButtonProxy getRadioButon( int pI ) { return mRadioButtons.get( pI ); } // Changehandler @Override public void onChange( ChangeEvent event ) // possibleStateChange { if ( mDelayedStateChecker == null ) { mDelayedStateChecker = new DelayedStateChecker(); } Scheduler.get().scheduleDeferred( mDelayedStateChecker.getCommandToDefer() ); } // SizeManaged @Override public void relayout() { Widget parent = getParent(); if ( parent instanceof SizeManaged ) { ((SizeManaged) parent).relayout(); } } // IFormComponent @Override public boolean setFocus() { pullFocusTo( getRadioButon( 0 ) ); return true; } @Override public Object getCurrentValue() { return (mLastSelection != null) ? mLastSelection.getKeyValuePair() : setDefaultSelection(); } @Override public void setCurrentValue( Object pNewValue ) { if ( pNewValue != null ) { setSelected( getProxyFor( pNewValue ) ); } } @Override public void setEnabled( boolean pEnabled ) { mEnabled = pEnabled; for ( int i = 0; i < mRadioButtons.size(); i++ ) { RadioButtonProxy radioButtonProxy = getRadioButon( i ); radioButtonProxy.setEnabled( pEnabled ); } stateChanged(); } // AbstractFormElement @Override protected void setEnabledStyles() { super.setEnabledStyles(); mInfoIndicator.setVisible( hasFocus() ); } @Override public void publishAnyPendingChanges() { FocusSelection zFS = determineFocusSelection(); RadioButtonProxy prevLastSelection = mLastSelection; if ( zFS.getSelected() != null ) { setLastSelected( zFS.getSelected() ); } RadioButtonProxy curLastSelection = mLastSelection; if ( prevLastSelection != curLastSelection ) { fireChangeListeners(); } if ( mReportedFocus ) { mReportedFocus = false; fireBlurListeners(); } super.publishAnyPendingChanges(); } // Support... @Override public void simulateUserTextEntry( String pText ) { RadioButtonProxy zCurrentSelection = mLastSelection; setLastSelected( determineItemToSelect( Strings.deNull( pText ).trim() ) ); if ( zCurrentSelection != mLastSelection ) { mLastSelection.setChecked(); fireChangeListeners(); } pullFocusTo( mLastSelection ); } private RadioButtonProxy determineItemToSelect( String pText ) { for ( int i = 0; i < mRadioButtons.size(); i++ ) { RadioButtonProxy radioButtonProxy = getRadioButon( i ); if ( pText.equals( radioButtonProxy.getKeyValuePair().toStringValue() ) ) { return radioButtonProxy; } } throw new IllegalArgumentException( "simulateUserTextEntry on '" + mFieldLabel + "' to:" + pText ); } //vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv// private RadioButtonProxy getProxyFor( Object pNewValue ) { Object pairKey; if ( pNewValue instanceof SimpleKeyValuePair ) { pairKey = ((SimpleKeyValuePair) pNewValue).getKey(); } else if ( pNewValue instanceof String ) { pairKey = pNewValue; } else { pairKey = "?" + pNewValue; } for ( int i = 0; i < mRadioButtons.size(); i++ ) { RadioButtonProxy radioButtonProxy = getRadioButon( i ); if ( pairKey.equals( radioButtonProxy.getKeyValuePair().getKey() ) ) { return radioButtonProxy; } } throw new IllegalArgumentException( "No Valid Option in Radio Group of: " + pNewValue ); } private SimpleKeyValuePair setDefaultSelection() { SimpleKeyValuePair rv = getRadioButon( 0 ).getKeyValuePair(); setCurrentValue( rv ); return rv; } private void setSelected( RadioButtonProxy pRadioButtonProxy ) { setInitialSelection( pRadioButtonProxy ); setLastSelected( pRadioButtonProxy ); /* * Work around for IE bug where you can select multiple radio buttons * when not attached (part 1) */ if ( isAttached() ) { pRadioButtonProxy.setChecked(); } } @Override protected void onLoad() { super.onLoad(); /* * Work around for IE bug where you can select multiple radio buttons * when not attached (part 2) */ if ( mLastSelection != null ) { mLastSelection.setChecked(); } } private FocusSelection determineFocusSelection() { boolean anyFocus = false; RadioButtonProxy selected = null; for ( int i = 0; i < mRadioButtons.size(); i++ ) { RadioButtonProxy radioButtonProxy = getRadioButon( i ); if ( radioButtonProxy.isChecked() ) { selected = radioButtonProxy; } anyFocus |= radioButtonProxy.hasFocus(); } return new FocusSelection( anyFocus, selected ); } private static class FocusSelection { private boolean mFocused; private RadioButtonProxy mSelected; public FocusSelection( boolean pFocused, RadioButtonProxy pSelected ) { mFocused = pFocused; mSelected = pSelected; } public boolean isFocused() { return mFocused; } public RadioButtonProxy getSelected() { return mSelected; } } public void publishAnyDelayedChanges() { if ( mPendingReentries++ != 0 ) { return; } do { FocusSelection zFS = determineFocusSelection(); boolean shouldIssueBlur = false; if ( zFS.isFocused() != mReportedFocus ) { if ( zFS.isFocused() ) { mReportedFocus = true; fireFocusListeners(); } else { shouldIssueBlur = true; } } RadioButtonProxy prevLastSelection = mLastSelection; if ( zFS.getSelected() != null ) { setLastSelected( zFS.getSelected() ); } RadioButtonProxy curLastSelection = mLastSelection; if ( prevLastSelection != curLastSelection ) { fireChangeListeners(); } if ( shouldIssueBlur ) { mReportedFocus = false; fireBlurListeners(); } } while ( --mPendingReentries > 0 ); } private int mPendingReentries = 0; private boolean mReportedFocus = false; private RadioButtonProxy mInitialSelection = null; private RadioButtonProxy mLastSelection = null; private void setInitialSelection( RadioButtonProxy pInitialSelection ) { RadioButtonProxy prev = mInitialSelection; switchChangeFromTo( prev, mInitialSelection = pInitialSelection ); } private RadioButtonProxy setLastSelected( RadioButtonProxy pSelected ) { return mLastSelection = switchChangeFromTo( mLastSelection, pSelected ); } private RadioButtonProxy switchChangeFromTo( RadioButtonProxy pPrev, RadioButtonProxy pNew ) { if ( pPrev != pNew ) { if ( pPrev != null ) { pPrev.removeChangeIndicator(); } if ( pNew != null ) { if ( pNew != mInitialSelection ) { mInitialSelection.addChangeIndicator(); pNew.addChangeIndicator(); } else { mInitialSelection.removeChangeIndicator(); pNew.removeChangeIndicator(); } } } return pNew; } //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^// private DelayedStateChecker mDelayedStateChecker = null; private class DelayedStateChecker implements Command { private int mPendingDelays = 0; public Command getCommandToDefer() { mPendingDelays++; return this; } @Override public void execute() { if ( --mPendingDelays == 0 ) { publishAnyDelayedChanges(); } } } private static class RadioButtonProxy extends Composite implements Focusable, FocusHandler, BlurHandler, ClickHandler { private SimpleKeyValuePair mKeyValuePair; private ChangeHandler mChangeHandler; private RadioButton mRadioButton; private boolean mHasFocus = false; private boolean mChangeIndicated = false; public RadioButtonProxy( String pRadioGroupName, SimpleKeyValuePair pKeyValuePair, ChangeHandler pChangeHandler ) { mKeyValuePair = pKeyValuePair; mChangeHandler = pChangeHandler; String zLabel = HTMLize.escapeNoWrap( pKeyValuePair.toStringValue() ); mRadioButton = new RadioButton( pRadioGroupName, zLabel, true ); //noinspection GWTStyleCheck mRadioButton.setStyleName( "frmRadioBtn" ); initWidget( buildComponentPanel() ); mRadioButton.addFocusHandler( this ); mRadioButton.addBlurHandler( this ); mRadioButton.addClickHandler( this ); // setStyleName( BASE_STYLE_NAME ); } private HTMLPanel buildComponentPanel() { String inputId = "input" + StaticSimpleIdSource.getNext(); String html = "<nowrap><table cellpadding='0' cellspacing='0'><tr><td id='" + inputId + "'></td></tr></table></nowrap>"; HTMLPanel panel = new HTMLPanel( html ); panel.add( mRadioButton, inputId ); return panel; } @Override public int getTabIndex() { return mRadioButton.getTabIndex(); } @Override public void setTabIndex( int index ) { mRadioButton.setTabIndex( index ); } @Override public void setAccessKey( char key ) { mRadioButton.setAccessKey( key ); } @Override public void setFocus( boolean pFocus ) { mRadioButton.setFocus( pFocus ); } @Override public void onFocus( FocusEvent event ) { // System.out.println( "RadioButtonProxy.onFocus: " + mKeyValuePair ); mHasFocus = true; mChangeHandler.onChange( null ); } @Override public void onBlur( BlurEvent event ) { // System.out.println( "RadioButtonProxy.onLostFocus: " + mKeyValuePair ); mHasFocus = false; mChangeHandler.onChange( null ); } @Override public void onClick( ClickEvent event ) { // System.out.println( "RadioButtonProxy.onClick: " + mKeyValuePair ); mChangeHandler.onChange( null ); } public SimpleKeyValuePair getKeyValuePair() { return mKeyValuePair; } public void setChecked() { mRadioButton.setValue( true ); } public void setEnabled( boolean pEnabled ) { mRadioButton.setEnabled( pEnabled ); } public boolean isChecked() { return mRadioButton.getValue(); } public boolean hasFocus() { return mHasFocus; } public void addChangeIndicator() { if ( !mChangeIndicated ) { mChangeIndicated = true; //noinspection GWTStyleCheck mRadioButton.addStyleName( "frmRadioBtn-Changed" ); } } public void removeChangeIndicator() { if ( mChangeIndicated ) { mChangeIndicated = false; //noinspection GWTStyleCheck mRadioButton.removeStyleName( "frmRadioBtn-Changed" ); } } @Override public String toString() { return "RadioButtonProxy: " + mKeyValuePair.toStringValue(); } } private static class InfoIndicator extends Widget { private Element iconImg = DOM.createImg(); private boolean mCanShow = false; public InfoIndicator() { Element span = DOM.createSpan(); // DOM.setElementProperty( span, "className", "litesoft-FormComponentIndicatorContainer" ); setElement( span ); CommonElementHelper.setImgSrc( iconImg, TransparentImage.URL ); CommonElementHelper.setStyleClass( iconImg, "litesoft-FormComponentIndicator" ); DOM.appendChild( span, iconImg ); setVisible( false ); } public void setTooltip( String pTooltip ) { mCanShow = (pTooltip.length() != 0); DOM.setElementProperty( iconImg, "title", pTooltip ); } @Override public void setVisible( boolean pVisible ) { getElement().getStyle().setDisplay( (mCanShow && pVisible) ? Style.Display.INLINE : Style.Display.NONE ); } } private static SimpleKeyValuePair[] convertToKeyValuePairs( String[] pOptions ) { if ( pOptions == null ) { return SimpleKeyValuePair.EMPTY_ARRAY; } SimpleKeyValuePair[] rv = new SimpleKeyValuePair[pOptions.length]; for ( int i = 0; i < pOptions.length; i++ ) { rv[i] = convertToKeyValuePair( pOptions[i] ); } return rv; } private static SimpleKeyValuePair convertToKeyValuePair( String pOption ) { return (pOption != null) ? new StringKeyValuePair( pOption, pOption ) : null; } } |
Commits for litesoft/trunk/Java/GWT/Client/src/org/litesoft/GWT/forms/client/components/impls/input/FormRadioGroup.java
Revision | Author | Commited | Message |
---|---|---|---|
947 Diff | GeorgeS | Fri 06 Jun, 2014 23:36:56 +0000 | Correct Spelling of package! |
942 Diff | GeorgeS | Mon 02 Jun, 2014 23:41:46 +0000 | Extracting commonfoundation |
939 Diff | GeorgeS | Mon 02 Jun, 2014 21:30:31 +0000 | Extracting commonfoundation |
802 Diff | GeorgeS | Wed 15 Aug, 2012 04:04:47 +0000 | |
801 Diff | GeorgeS | Wed 15 Aug, 2012 03:59:02 +0000 | |
390 Diff | GeorgeS | Sun 14 Aug, 2011 19:33:48 +0000 | |
243 Diff | GeorgeS | Sun 05 Jun, 2011 20:29:12 +0000 | |
154 Diff | GeorgeS | Tue 22 Mar, 2011 20:46:40 +0000 | |
151 Diff | GeorgeS | Thu 17 Mar, 2011 04:16:22 +0000 | |
49 | GeorgeS | Mon 12 Apr, 2010 02:59:10 +0000 | License Text |