litesoft
@ 948
litesoft / trunk / GWT_Sandbox / FormEngine / src / com / temp / client / foundation / widget / input / FormEngine.java
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package com.temp.client.foundation.widget.input; import org.litesoft.core.util.externalization.*; import com.google.gwt.event.dom.client.*; import com.google.gwt.user.client.ui.*; import com.temp.client.foundation.util.*; import com.temp.client.foundation.widget.*; import com.temp.client.foundation.widget.input.support.*; import com.temp.shared.*; import com.temp.shared.utils.*; import java.util.*; /** * A FormEngine manages Buttons and FormEngineMembers (FormEngines & InputFields). * <p/> * It also manages: * <ul> * <li>Focus,</li> * <li>Validation,</li> * <li>Change State,</li> * <li>Error State, and</li> * <li>Blocking User Interaction during Server Interaction</li> * </ul> * <p/> * Note: The FormEngine is Enableable. A <code>disabled</code> FormEngine * does not mean that it prohibits entry into its members, but that it does * not participate in: Focus, Validation, Change or Error State! * <p/> * Note: The Focus Search Order is: * <nl> * <li>FormEngineMembers (in the order they were added),</li> * <li>Submit Button, and lastly</li> * <li>Managed Buttons (in the order they were added)</li> * </nl> */ public class FormEngine implements ServerInteractionListener, FormEngineMember { public interface Callback { void submit( String name ); } private final String name; private final List<FormEngineMember> members = new ArrayList<FormEngineMember>(); private final List<ButtonBase> managedButtons = new ArrayList<ButtonBase>(); private ButtonBase submitButton = null; private Callback submitCallback = null; private final List<FormEngine> subForms = new ArrayList<FormEngine>(); private HasEnabledSetManager serverInteractionHelper; private boolean enabled = true; private E13nResolver resolver = null; public FormEngine( String name ) { this.name = Validate.noEmptyIdentifier( "Name", name ); } public final String getName() { return name; } // Only Called in Builder Mode: /** * Add the Form's Members - The order added will be the order processed for Focus */ public void add( FormEngineMember... members ) { assertBuildMode( "add( members )" ); if ( members != null ) { for ( FormEngineMember member : members ) { memberAdd( member ); } } } public void setSubmit( ButtonBase submitButton, Callback submitCallback ) { assertBuildMode( "setSubmit" ); this.submitButton = submitButton; this.submitCallback = submitCallback; } public void addManaged( ButtonBase... managedButtons ) { assertBuildMode( "addManaged" ); if ( managedButtons != null ) { for ( ButtonBase button : managedButtons ) { managedAdd( button ); } } } @Override public void init( E13nResolver parentResolver ) { Validate.notNull( "resolver", parentResolver ); assertBuildMode( "init" ); if ( submitButton == null && members.isEmpty() && managedButtons.isEmpty() ) { throw new IllegalStateException( "Nothing 'in' the FormEngine, No: Submit Button, Members, or Managed Buttons" ); } resolver = new OptionallyPrefixingE13nResolver( name, parentResolver ); // add our name to keys! List<HasEnabled> simpleChildren = new ArrayList<HasEnabled>(); for ( FormEngineMember member : members ) { member.init( resolver ); if ( member instanceof InputField ) { simpleChildren.add( member ); } } for ( ButtonBase button : managedButtons ) { buttonInit( button ); simpleChildren.add( button ); } if ( submitButton != null ) { buttonInit( submitButton ); simpleChildren.add( submitButton ); submitButton.addClickHandler( new ClickHandler() { @Override public void onClick( ClickEvent event ) { if ( validate() ) { if ( submitCallback != null ) { submitCallback.submit( getName() ); } } } } ); } serverInteractionHelper = new HasEnabledSetManager( simpleChildren.toArray( new HasEnabled[simpleChildren.size()] ) ); } // Callable anytime: @Override public boolean isRunMode() { return (resolver != null); } @Override public boolean isEnabled() { return enabled; } @Override public void setEnabled( boolean enabled ) { this.enabled = enabled; } // Only callable in Run Mode: @Override public void reset() { checkRunMode( "reset" ); for ( FormEngineMember member : members ) { member.reset(); } } @Override public void revert() { checkRunMode( "revert" ); for ( FormEngineMember member : members ) { member.revert(); } } @Override public boolean isChanged() { checkRunMode( "isChanged" ); if ( isEnabled() ) { for ( FormEngineMember member : members ) { if ( member.isEnabled() ) { if ( member.isChanged() ) { return true; } } } } return false; } @Override public Boolean isFocused() { checkRunMode( "isFocused" ); boolean anyFalse = false; if ( isEnabled() ) { for ( FormEngineMember member : members ) { if ( member.isEnabled() ) { Boolean focused = member.isFocused(); if ( focused != null ) { if ( focused ) { return true; } anyFalse = true; } } } } return anyFalse ? false : null; } @Override public boolean isErrored() { checkRunMode( "isErrored" ); if ( isEnabled() ) { for ( FormEngineMember member : members ) { if ( member.isEnabled() ) { if ( member.isErrored() ) { return true; } } } } return false; } @Override public boolean validate() { checkRunMode( "validate" ); boolean valid = true; if ( isEnabled() ) { for ( FormEngineMember member : members ) { if ( member.isEnabled() ) { valid &= member.validate(); } } } return valid; } @Override public boolean setFocused() { checkRunMode( "setFocused" ); if ( isEnabled() ) { // 1st - Members for ( FormEngineMember member : members ) { if ( member.isEnabled() ) { if ( member.setFocused() ) { return true; } } } // 2nd - Submit Button if ( submitButton != null && submitButton.isEnabled() ) { submitButton.setFocus( true ); return true; } // 3rd - Managed Buttons for ( ButtonBase button : managedButtons ) { if ( button.isEnabled() ) { button.setFocus( true ); return true; } } } return false; } @Override public E13nResolver getE13nResolver() { checkRunMode( "getE13nResolver" ); return resolver; } @Override public NameToID addNamedWidgetsTo( NameToID nameToID ) { checkRunMode( "addNamedWidgetsTo" ); for ( FormEngineMember member : members ) { member.addNamedWidgetsTo( nameToID ); } nameToID.tryAdd( submitButton ); for ( ButtonBase button : managedButtons ) { nameToID.tryAdd( button ); } return nameToID; } @Override public void busyInteractingWithServer() { checkRunMode( "busyInteractingWithServer" ); serverInteractionHelper.snagStateAndDisable(); for ( FormEngine subForm : subForms ) { subForm.busyInteractingWithServer(); } } @Override public void doneInteractingWithServer() { checkRunMode( "doneInteractingWithServer" ); serverInteractionHelper.restoreState(); for ( FormEngine subForm : subForms ) { subForm.doneInteractingWithServer(); } } protected final void assertBuildMode( String method ) { if ( isRunMode() ) { throw new IllegalStateException( "Unable to process method '" + method + "' of FormEngine Named '" + name + "', because no longer in Build Mode (init has already been called)" ); } } protected final void checkRunMode( String method ) { if ( !isRunMode() ) { throw new IllegalStateException( "Unable to process method '" + method + "' of FormEngine Named '" + name + "', because not in Run Mode (init NOT called)" ); } } private void memberAdd( FormEngineMember member ) { if ( member != null ) { members.add( member ); if ( member instanceof FormEngine ) { subForms.add( (FormEngine) member ); } } } private void managedAdd( ButtonBase managed ) { if ( managed != null ) { managedButtons.add( managed ); } } private void buttonInit( ButtonBase button ) { if ( button instanceof NamedTextButton ) { ((NamedTextButton) button).init( resolver ); } } } |
Commits for litesoft/trunk/GWT_Sandbox/FormEngine/src/com/temp/client/foundation/widget/input/FormEngine.java
Revision | Author | Commited | Message |
---|---|---|---|
948 Diff | GeorgeS | Sat 07 Jun, 2014 23:42:39 +0000 | Jusefuls Formatter Updated to New Code Format |
939 Diff | GeorgeS | Mon 02 Jun, 2014 21:30:31 +0000 | Extracting commonfoundation |
749 Diff | GeorgeS | Fri 06 Jul, 2012 00:11:43 +0000 | |
724 Diff | GeorgeS | Mon 11 Jun, 2012 00:47:26 +0000 | |
635 Diff | GeorgeS | Thu 19 Apr, 2012 18:20:49 +0000 | |
632 | GeorgeS | Wed 18 Apr, 2012 18:11:29 +0000 |