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litesoft / trunk / GWT_Sandbox / FormEngine / src / com / temp / foundation / widgets / InputField.java
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package com.temp.foundation.widgets; import com.google.gwt.user.client.ui.*; import com.temp.foundation.widgets.inputfieldsupport.*; import com.temp.foundation.widgets.support.*; import com.temp.shared.externalization.*; import com.temp.shared.utils.*; /** * An Input Field that can be instantiated directly or as a widget in a UI Binding file. * <p/> * It operates in two distinct states: * <p/> * <li>Builder Mode - Where properties of the final widget are specified (and parts of the widget are NOT accessable)</li> * <li>Run Mode - Whare the parts of the Widget are accessable (and the specification properties are NOT changeable)</li> * <p/> * The transition between the states is one way ('Builder' to 'Run') and is a result of the call to 'init'. * * @param <T> the data type returned by this InputField */ public class InputField<T> extends Composite implements HasName { // Required to be set private String name; // Optionally set/changed private InputType inputType = InputType.String; private boolean required = false; private boolean errorLabel = true; private boolean extendedLabel = false; private boolean example = false; private LabelPosition labelPosition = LabelPosition.Left; // Optionally set private Integer maxLength; private String helpLink; // The above must be set/changed BEFORE the widget is attached! private HorizontalPanel container = new HorizontalPanel(); private CompleteInputFieldAccessor<T> completeInputFieldAccessor; public InputField() { container.add( new Label( "!?!" ) ); initWidget( container ); } // Configuration Methods @Override public String getName() { return name; } @Override public void setName( String name ) { assertBuildMode(); this.name = Validate.noEmptyIdentifier( "Name", name ); } public InputField<T> name( String name ) { setName( name ); return this; } public String getType() { return (inputType != null) ? inputType.name() : null; } public void setType( String type ) { assertBuildMode(); type = StringUtils.noEmpty( type ); InputType inputType = ObjectUtils.oneOfToStringIgnoreCase( type, InputType.values() ); if ( inputType == null ) { throw new IllegalArgumentException( "Unacceptable InputType of: " + type ); } setInputType( inputType ); } public InputType getInputType() { return inputType; } public void setInputType( InputType inputType ) { assertBuildMode(); Validate.notNull( "InputType", this.inputType = inputType ); } public InputField<T> inputType( InputType inputType ) { setInputType( inputType ); return this; } public String getLabel() { return labelPosition.name(); } public void setLabel( String labelPosition ) { assertBuildMode(); labelPosition = StringUtils.noEmpty( labelPosition ); LabelPosition position = ObjectUtils.oneOfToStringIgnoreCase( labelPosition, LabelPosition.values() ); if ( position == null ) { throw new IllegalArgumentException( "Unacceptable LabelPosition of: " + labelPosition ); } setLabelPosition( position ); } public LabelPosition getLabelPosition() { return labelPosition; } public void setLabelPosition( LabelPosition labelPosition ) { assertBuildMode(); Validate.notNull( "LabelPosition", this.labelPosition = labelPosition ); } public InputField<T> labelPosition( LabelPosition labelPosition ) { setLabelPosition( labelPosition ); return this; } public boolean isRequired() { return required; } public void setRequired( boolean required ) { assertBuildMode(); this.required = required; if ( required ) { setErrorLabel( true ); } } public InputField<T> required() { setRequired( true ); return this; } public boolean isErrorLabel() { return errorLabel; } public void setErrorLabel( boolean pErrorLabel ) { assertBuildMode(); errorLabel = pErrorLabel; } public InputField<T> errorLabel() { setErrorLabel( true ); return this; } public boolean isExtendedLabel() { return extendedLabel; } public void setExtendedLabel( boolean pExtendedLabel ) { assertBuildMode(); extendedLabel = pExtendedLabel; } public InputField<T> extendedLabel() { setExtendedLabel( true ); return this; } public boolean isExample() { return example; } public void setExample( boolean pExample ) { assertBuildMode(); example = pExample; } public InputField<T> example() { setExample( true ); return this; } public Integer getMaxLength() { return maxLength; } public void setMaxLength( Integer maxLength ) { assertBuildMode(); this.maxLength = Validate.optionalLength( "MaxLength", maxLength ); } public InputField<T> maxLength( int maxLength ) { setMaxLength( maxLength ); return this; } public String getHelpLink() { return helpLink; } public void setHelpLink( String helpLink ) { assertBuildMode(); this.helpLink = StringUtils.noEmpty( helpLink ); } public InputField<T> helpLink( String helpLink ) { setHelpLink( Validate.noEmpty( "HelpLink", helpLink ) ); return this; } /** * The 'Builder' to 'Run' state transition method fully constructs/populates the InputField's Widget / container. * * @return this for method chaining */ public InputField<T> init( E13nResolver resolver ) { Validate.notNull( "resolver", resolver ); if ( name == null ) { throw new IllegalStateException( "Unable to init, Name not set" ); } assertBuildMode(); completeInputFieldAccessor = buildActualWidget( resolver ); return this; } // Anytime Methods public boolean isEnabled() { return true; // TODO: XXX } public void setEnabled( boolean enable ) { // TODO: XXX } public InputField<T> enable() { setEnabled( true ); return this; } public InputField<T> disable() { setEnabled( false ); return this; } public boolean isHidden() { return true; // TODO: XXX } public void setHidden( boolean hidden ) { // TODO: XXX } public InputField<T> hide() { setHidden( true ); return this; } public InputField<T> show() { setHidden( false ); return this; } // Widget Accessor Methods public T getCuurentValue() { return getInput().getValue(); } public Widget getInputWidget() { return checkRunMode( "getInputWidget" ).getInputWidget(); } public InputWidgetChangeFilter<T> getInput() { return checkRunMode( "getInput" ).getInput(); } public InputWidgetValidator<T> getValidator() { return checkRunMode( "getValidator" ).getValidator(); } public TextLabel getLabelLabel() { return checkRunMode( "getLabelLabel" ).getLabelLabel(); } public TextLabel getExtendedLabel() { return checkRunMode( "getExtendedLabel" ).getExtendedLabel(); } public TextLabel getExampleLabel() { return checkRunMode( "getExampleLabel" ).getExampleLabel(); } public TextLabel getErrorLabel() { return checkRunMode( "getErrorLabel" ).getErrorLabel(); } public HelpWidget getHelpWidget() { return checkRunMode( "getHelpWidget" ).getHelpWidget(); } // Support Methods... protected final void assertBuildMode() { if ( completeInputFieldAccessor != null ) { throw new IllegalStateException( "Unable to Mutate InputField Named '" + name + "', because no longer in Build Mode (init called)" ); } } protected final CompleteInputFieldAccessor<T> checkRunMode( String method ) { if ( completeInputFieldAccessor == null ) { throw new IllegalStateException( "Unable to access widgets of InputField Named '" + name + "', because not in Run Mode (init NOT called)" ); } return completeInputFieldAccessor; } protected CompleteInputFieldAccessor<T> buildActualWidget( E13nResolver pResolver ) { InputFieldAccessor<T> accessor = inputType.createAccessor(); TextLabel labelTextLabel = null; TextLabel extendedTextLabel = null; if ( !LabelPosition.None.equals( labelPosition ) ) { labelTextLabel = createWrappingLabel( "labelLabel", true ); extendedTextLabel = createWrappingLabel( "extendedLabel", extendedLabel ); } TextLabel exampleTextLabel = createWrappingLabel( "exampleLabel", example ); TextLabel errorTextLabel = createClippingLabel( "errorLabel", errorLabel && (accessor.getValidator() != null) ); HelpWidget helpWidget = (helpLink != null) ? new HelpWidget().link( helpLink ) : null; CompleteInputFieldAccessor<T> completeAccessor = new CompleteInputFieldAccessor<T>( labelTextLabel, // extendedTextLabel, // accessor, // helpWidget, // exampleTextLabel, // errorTextLabel ); populate( container, completeAccessor ); return completeAccessor; } protected final TextLabel createNonWrappingLabel( String styleName, boolean create ) { return create ? new NonWrappingLabel().style( styleName ) : null; } protected final TextLabel createWrappingLabel( String styleName, boolean create ) { return create ? new WrappingLabel().style( styleName ) : null; } protected final TextLabel createClippingLabel( String styleName, boolean create ) { return create ? new ClippingLabel().style( styleName ) : null; } protected void populate( HorizontalPanel container, CompleteInputFieldAccessor<T> completeAccessor ) { // completeAccessor. boolean required = false; boolean errorLabel = true; boolean extendedLabel = false; boolean example = false; LabelPosition labelPosition = LabelPosition.Left; // Optionally set Integer maxLength; String helpLink; HorizontalPanel container = new HorizontalPanel(); E13nResolverAccessor resolverAccessor; CompleteInputFieldAccessor<T> completeInputFieldAccessor; } } |
Commits for litesoft/trunk/GWT_Sandbox/FormEngine/src/com/temp/foundation/widgets/InputField.java
Revision | Author | Commited | Message |
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600 | GeorgeS | Sun 05 Feb, 2012 18:55:58 +0000 | Sync-n |