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| -rw-r--r-- | odk/examples/DevelopersGuide/Forms/DocumentHelper.java | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/odk/examples/DevelopersGuide/Forms/DocumentHelper.java b/odk/examples/DevelopersGuide/Forms/DocumentHelper.java new file mode 100644 index 000000000..abfda37c4 --- /dev/null +++ b/odk/examples/DevelopersGuide/Forms/DocumentHelper.java @@ -0,0 +1,306 @@ +/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +/**************************************************************************/ +import com.sun.star.uno.*; +import com.sun.star.lang.*; +import com.sun.star.drawing.*; +import com.sun.star.frame.*; +import com.sun.star.form.*; +import com.sun.star.beans.*; +import com.sun.star.container.*; + +/**************************************************************************/ +/** provides a small wrapper around a document +*/ +public class DocumentHelper +{ + /// the remote office context + private XComponentContext m_remoteContext; + /// the remote service manager + private XMultiServiceFactory m_orb; + protected XComponent m_documentComponent; + + /* ------------------------------------------------------------------ */ + public XComponent getDocument( ) + { + return m_documentComponent; + } + + /* ------------------------------------------------------------------ */ + public XComponentContext getContext( ) + { + return m_remoteContext; + } + + /* ------------------------------------------------------------------ */ + public XMultiServiceFactory getOrb( ) + { + return m_orb; + } + + /* ------------------------------------------------------------------ */ + public DocumentHelper( XComponentContext xContext, XComponent document ) + { + m_remoteContext = xContext; + m_orb = UnoRuntime.queryInterface( + XMultiServiceFactory.class, m_remoteContext.getServiceManager()); + m_documentComponent = document; + } + + /* ------------------------------------------------------------------ */ + protected static XComponent implCreateBlankDocument( XComponentContext xCtx, String factoryURL ) throws com.sun.star.uno.Exception + { + XComponentLoader aLoader = UnoRuntime.queryInterface( + XComponentLoader.class, + xCtx.getServiceManager().createInstanceWithContext( + "com.sun.star.frame.Desktop", xCtx )); + + return UNO.queryComponent( + aLoader.loadComponentFromURL( factoryURL, "_blank", 0, new PropertyValue[ 0 ] ) + ); + } + + + + /* ------------------------------------------------------------------ */ + public static DocumentHelper blankDocument( XComponentContext xCtx, DocumentType eType ) throws com.sun.star.uno.Exception + { + XComponent document = implCreateBlankDocument( xCtx, getDocumentFactoryURL( eType ) ); + if ( eType == DocumentType.CALC ) + return new SpreadsheetDocument( xCtx, document ); + + return new DocumentHelper( xCtx, document ); + } + + /* ------------------------------------------------------------------ */ + /** retrieves the current view of the document + @return + the view component, queried for the interface described by aInterfaceClass + */ + public DocumentViewHelper getCurrentView( ) + { + // get the model interface for the document + XModel xDocModel = UnoRuntime.queryInterface(XModel.class, m_documentComponent ); + // get the current controller for the document - as a controller is tied to a view, + // this gives us the currently active view for the document. + XController xController = xDocModel.getCurrentController(); + + if ( classify() == DocumentType.CALC ) + return new SpreadsheetView( m_orb, this, xController ); + + return new DocumentViewHelper( m_orb, this, xController ); + } + + /* ------------------------------------------------------------------ */ + /** creates a new form which is a child of the given form components container + + @param xParentContainer + The parent container for the new form + @param sInitialName + The initial name of the form. May be null, in this case the default (which + is an implementation detail) applies. + */ + private XIndexContainer createSubForm( XIndexContainer xParentContainer, String sInitialName ) + throws com.sun.star.uno.Exception + { + // create a new form + Object xNewForm = m_orb.createInstance( "com.sun.star.form.component.DataForm" ); + + // insert + xParentContainer.insertByIndex( xParentContainer.getCount(), xNewForm ); + + // set the name if necessary + if ( null != sInitialName ) + { + XPropertySet xFormProps = UNO.queryPropertySet( xNewForm ); + xFormProps.setPropertyValue( "Name", sInitialName ); + } + + // outta here + return UnoRuntime.queryInterface( XIndexContainer.class, xNewForm ); + } + + /* ------------------------------------------------------------------ */ + /** creates a new form which is a child of the given form components container + + @param aParentContainer + The parent container for the new form + @param sInitialName + The initial name of the form. May be null, in this case the default (which + is an implementation detail) applies. + */ + public XIndexContainer createSubForm( Object aParentContainer, String sInitialName ) + throws com.sun.star.uno.Exception + { + XIndexContainer xParentContainer = UnoRuntime.queryInterface( + XIndexContainer.class, aParentContainer ); + return createSubForm( xParentContainer, sInitialName ); + } + + /* ------------------------------------------------------------------ */ + /** creates a form which is a sibling of the given form + @param aForm + A sinbling of the to be created form. + + @param sInitialName + The initial name of the form. May be null, in this case the default (which + is an implementation detail) applies. + */ + public XIndexContainer createSiblingForm( Object aForm, String sInitialName ) throws com.sun.star.uno.Exception + { + // get the parent + XChild xAsChild = UnoRuntime.queryInterface( XChild.class, aForm ); + XIndexContainer xContainer = UnoRuntime.queryInterface( + XIndexContainer.class, xAsChild.getParent() ); + // append a new form to this parent container + return createSubForm( xContainer, sInitialName ); + } + + /* ------------------------------------------------------------------ */ + /** retrieves the document model which a given form component belongs to + */ + public static DocumentHelper getDocumentForComponent( Object aFormComponent, XComponentContext xCtx ) + { + XChild xChild = UnoRuntime.queryInterface( XChild.class, aFormComponent ); + XModel xModel = null; + while ( ( null != xChild ) && ( null == xModel ) ) + { + XInterface xParent = (XInterface)xChild.getParent(); + xModel = UnoRuntime.queryInterface( XModel.class, xParent ); + xChild = UnoRuntime.queryInterface( XChild.class, xParent ); + } + + return new DocumentHelper( xCtx, xModel ); + } + + /* ------------------------------------------------------------------ */ + /** returns a URL which can be used to create a document of a certain type + */ + private static String getDocumentFactoryURL( DocumentType eType ) + { + if ( eType == DocumentType.WRITER ) + return "private:factory/swriter"; + if ( eType == DocumentType.CALC ) + return "private:factory/scalc"; + if ( eType == DocumentType.DRAWING ) + return "private:factory/sdraw"; + return "private:factory/swriter"; + } + + /* ------------------------------------------------------------------ */ + /** classifies a document + */ + public DocumentType classify( ) + { + XServiceInfo xSI = UnoRuntime.queryInterface( + XServiceInfo.class, m_documentComponent ); + + if ( xSI.supportsService( "com.sun.star.text.TextDocument" ) ) + return DocumentType.WRITER; + else if ( xSI.supportsService( "com.sun.star.sheet.SpreadsheetDocument" ) ) + return DocumentType.CALC; + else if ( xSI.supportsService( "com.sun.star.drawing.DrawingDocument" ) ) + return DocumentType.DRAWING; + + return DocumentType.UNKNOWN; + } + /* ------------------------------------------------------------------ */ + /** retrieves a com.sun.star.drawing.DrawPage of the document, denoted by index + * @param index + * the index of the draw page<br> + * @throws + * com.sun.star.lang.IndexOutOfBoundsException + * com.sun.star.lang.WrappedTargetException + */ + protected XDrawPage getDrawPage( int index ) throws com.sun.star.lang.IndexOutOfBoundsException, com.sun.star.lang.WrappedTargetException + { + XDrawPagesSupplier xSuppPages = UnoRuntime.queryInterface( + XDrawPagesSupplier.class, getDocument() ); + XDrawPages xPages = xSuppPages.getDrawPages(); + + return UnoRuntime.queryInterface( XDrawPage.class, xPages.getByIndex( index ) ); + } + + /* ------------------------------------------------------------------ */ + /** retrieves the <type scope="com.sun.star.drawing">DrawPage</type> of the document + */ + protected XDrawPage getMainDrawPage( ) throws com.sun.star.uno.Exception + { + XDrawPage xReturn; + + // in case of a Writer document, this is rather easy: simply ask the XDrawPageSupplier + XDrawPageSupplier xSuppPage = UnoRuntime.queryInterface( + XDrawPageSupplier.class, getDocument() ); + if ( null != xSuppPage ) + xReturn = xSuppPage.getDrawPage(); + else + { // the model itself is no draw page supplier - okay, it may be a Writer or Calc document + // (or any other multi-page document) + XDrawPagesSupplier xSuppPages = UnoRuntime.queryInterface( + XDrawPagesSupplier.class, getDocument() ); + XDrawPages xPages = xSuppPages.getDrawPages(); + + xReturn = UnoRuntime.queryInterface( XDrawPage.class, xPages.getByIndex( 0 ) ); + + // Note that this is no really error-proof code: If the document model does not support the + // XDrawPagesSupplier interface, or if the pages collection returned is empty, this will break. + } + + return xReturn; + } + + /* ------------------------------------------------------------------ */ + /** retrieves the root of the hierarchy of form components + */ + protected XNameContainer getFormComponentTreeRoot( ) throws com.sun.star.uno.Exception + { + XFormsSupplier xSuppForms = UnoRuntime.queryInterface( + XFormsSupplier.class, getMainDrawPage( ) ); + + XNameContainer xFormsCollection = null; + if ( null != xSuppForms ) + { + xFormsCollection = xSuppForms.getForms(); + } + return xFormsCollection; + } + + /* ------------------------------------------------------------------ */ + /** creates a component at the service factory provided by the document + */ + public XInterface createInstance( String serviceSpecifier ) throws com.sun.star.uno.Exception + { + XMultiServiceFactory xORB = UnoRuntime.queryInterface( XMultiServiceFactory.class, + m_documentComponent ); + return (XInterface)xORB.createInstance( serviceSpecifier ); + } + + /* ------------------------------------------------------------------ */ + /** creates a component at the service factory provided by the document + */ + public XInterface createInstanceWithArguments( String serviceSpecifier, Object[] arguments ) throws com.sun.star.uno.Exception + { + XMultiServiceFactory xORB = UnoRuntime.queryInterface( XMultiServiceFactory.class, + m_documentComponent ); + return (XInterface) xORB.createInstanceWithArguments( serviceSpecifier, arguments ); + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |