90c978f839
filter, forms, fpicker, framework Change-Id: I55a25ad2dc3749e63465e638e8eeea3c322eabbf Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112047 Tested-by: Jenkins Reviewed-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>
407 lines
13 KiB
C++
407 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <com/sun/star/uno/Reference.hxx>
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#include <cppuhelper/implbase.hxx>
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#include "propertysetbase.hxx"
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#include <com/sun/star/form/binding/XValueBinding.hpp>
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#include <com/sun/star/form/binding/XListEntrySource.hpp>
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#include <com/sun/star/form/validation/XValidator.hpp>
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#include <com/sun/star/util/XModifyBroadcaster.hpp>
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#include <com/sun/star/container/XNamed.hpp>
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#include <com/sun/star/xml/dom/events/XEventListener.hpp>
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#include <com/sun/star/lang/XUnoTunnel.hpp>
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#include <com/sun/star/util/XCloneable.hpp>
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#include "pathexpression.hxx"
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#include "boolexpression.hxx"
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#include "mip.hxx"
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#include <rtl/ustring.hxx>
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#include <vector>
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// forward declaractions
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namespace xforms
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{
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class Model;
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class EvaluationContext;
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}
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namespace com::sun::star {
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namespace xml {
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namespace xpath { class XXPathAPI; }
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namespace dom
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{
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class XNode;
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class XNodeList;
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}
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}
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namespace container { class XNameContainer; }
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namespace xforms { class XModel; }
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namespace xsd { class XDataType; }
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}
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namespace xforms
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{
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/** An XForms Binding. Contains:
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* # a connection to its model
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* # an ID
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* # a binding expression
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* # model item properties
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* # (NOT YET IMPLEMENTED) child bindings (sequence of)
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*
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* See http://www.w3.org/TR/xforms/ for more information.
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*/
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typedef cppu::ImplInheritanceHelper<
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PropertySetBase,
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css::form::binding::XValueBinding,
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css::form::binding::XListEntrySource,
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css::form::validation::XValidator,
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css::util::XModifyBroadcaster,
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css::container::XNamed,
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css::xml::dom::events::XEventListener,
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css::lang::XUnoTunnel,
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css::util::XCloneable
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> Binding_t;
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class Binding : public Binding_t
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{
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public:
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typedef std::vector<css::uno::Reference<css::util::XModifyListener> > ModifyListeners_t;
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typedef std::vector<css::uno::Reference<css::form::validation::XValidityConstraintListener> > XValidityConstraintListeners_t;
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typedef std::vector<css::uno::Reference<css::form::binding::XListEntryListener> > XListEntryListeners_t;
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private:
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/// the Model to which this Binding belongs; may be NULL
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css::uno::Reference<css::xforms::XModel> mxModel;
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/// binding-ID. A document-wide unique ID for this binding element.
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OUString msBindingID;
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/// an XPath-expression to be instantiated on the data instance
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PathExpression maBindingExpression;
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/// an XPath-expression to determine read-only status
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BoolExpression maReadonly;
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/// an XPath-expression to determine relevance
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BoolExpression maRelevant;
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/// an XPath-expression to determine if item is required
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BoolExpression maRequired;
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/// an XPath-expression to determine if item is valid
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BoolExpression maConstraint;
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/// user-readable explanation of the constraint
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OUString msExplainConstraint;
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/// an XPath-expression to calculate values
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ComputedExpression maCalculate;
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/// the XML namespaces used for XML names/XPath-expressions in this binding
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css::uno::Reference<css::container::XNameContainer> mxNamespaces;
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/// a type name
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OUString msTypeName;
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/// modify listeners
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ModifyListeners_t maModifyListeners;
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/// list entry listener
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XListEntryListeners_t maListEntryListeners;
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/// validity listeners;
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XValidityConstraintListeners_t maValidityListeners;
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/// nodes on which we are listening for events
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std::vector<css::uno::Reference<css::xml::dom::XNode> > maEventNodes;
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/// the current MIP object for the first node we are bound to
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MIP maMIP;
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/// flag to detect recursions in calculate
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bool mbInCalculate;
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// flags to manage deferred notifications:
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/// if >0, valueModified() and bindingModified() will only set flags
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sal_Int32 mnDeferModifyNotifications;
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bool mbValueModified; /// if true, valueModified needs to be called
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bool mbBindingModified; /// if true, bindingModified needs to be called
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void initializePropertySet();
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public:
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Binding();
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virtual ~Binding() override;
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// property methods: get/set value
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css::uno::Reference<css::xforms::XModel> getModel() const { return mxModel;} /// get XForms model
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void _setModel( const css::uno::Reference<css::xforms::XModel>& ); /// set XForms model (only called by Model)
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OUString getModelID() const; /// get ID of XForms model
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OUString getBindingID() const { return msBindingID;} /// get ID for this binding
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void setBindingID( const OUString& ); /// set ID for this binding
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OUString getBindingExpression() const; /// get binding expression
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void setBindingExpression( const OUString& ); /// set binding exp.
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// MIPs (model item properties)
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OUString getReadonlyExpression() const; /// get read-only MIP
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void setReadonlyExpression( const OUString& ); /// set read-only MIP
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OUString getRelevantExpression() const; /// get relevant MIP
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void setRelevantExpression( const OUString& ); /// set relevant MIP
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OUString getRequiredExpression() const; /// get required MIP
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void setRequiredExpression( const OUString& ); /// set required MIP
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OUString getConstraintExpression() const; /// get constraint MIP
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void setConstraintExpression( const OUString& );/// set constraint MIP
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OUString getCalculateExpression() const; /// get calculate MIP
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void setCalculateExpression( const OUString& ); /// set calculate MIP
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OUString getType() const { return msTypeName;} /// get type name MIP (static)
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void setType( const OUString& ); /// set type name MIP (static)
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// a binding expression can only be interpreted with respect to
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// suitable namespace declarations. We collect those in the model and in a binding.
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// access to a binding's namespace
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// (set-method only changes local namespaces (but may add to model))
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css::uno::Reference<css::container::XNameContainer> getBindingNamespaces() const { return mxNamespaces; }
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void setBindingNamespaces( const css::uno::Reference<css::container::XNameContainer>& ); /// get binding nmsp.
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// access to the model's namespaces
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// (set-method changes model's namespaces (unless a local one is present))
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css::uno::Reference<css::container::XNameContainer> getModelNamespaces() const; /// set model namespaces
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void setModelNamespaces( const css::uno::Reference<css::container::XNameContainer>& ); /// get model nmsp.
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// read-only properties that map MIPs to control data source properties
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bool getReadOnly() const; // MIP readonly
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bool getRelevant() const; // MIP relevant
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bool getExternalData() const; // mapped from model's ExternalData property
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// missing binding properties:
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// - type (static; default: xsd:string)
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// - minOccurs/maxOccurs (computed XPath; default: 0/inf)
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// - p3ptype (static; no default)
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/// get this binding's context node
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xforms::EvaluationContext getEvaluationContext() const;
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/// get evaluation contexts for this binding's MIPs
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std::vector<xforms::EvaluationContext> getMIPEvaluationContexts();
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/// get nodeset the bind is bound to
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css::uno::Reference<css::xml::dom::XNodeList> getXNodeList();
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/// heuristically determine whether this binding is simple binding
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/// (here: simple binding == does not depend on other parts of the
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/// instance, it's not a 'dynamic' binding)
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bool isSimpleBinding() const;
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/// heuristically determine whether this binding's binding
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/// expression is simple
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bool isSimpleBindingExpression() const;
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/// update this binding (e.g. called by model for refresh )
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void update();
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/// prevent change notifications being sent to controls
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void deferNotifications( bool );
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/// is this binding valid? (are constraint, type and required MIPs ok?)
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bool isValid() const;
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/// determine whether this binding currently performs a useful
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/// function, r whether is may be discarded
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bool isUseful() const;
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/// explain why binding is invalid
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OUString explainInvalid();
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// the ID for XUnoTunnel calls
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static css::uno::Sequence<sal_Int8> getUnoTunnelId();
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private:
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/// check whether object is live, and throw suitable exception if not
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/// (to be used be API methods before acting on the object)
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///
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/// @throws css::uno::RuntimeException
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void checkLive();
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/// determine whether object is live
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/// live: has model, and model has been initialized
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bool isLive() const;
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/// get the model implementation
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xforms::Model* getModelImpl() const;
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/// get MIP evaluation contexts
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/// (only valid if control has already been bound)
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std::vector<xforms::EvaluationContext> _getMIPEvaluationContexts() const;
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/// bind this binding, and pre-compute the affected nodes
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void bind( bool bForceRebind = false );
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/// the binding value has been changed:
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/// trigger a modified event on all modified listeners
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void valueModified();
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/// the binding itself has changed:
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/// force rebind, then call valueModified()
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void bindingModified();
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/// set MIPs defined by this binding on MIP item
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MIP getLocalMIP() const;
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/// get the data type that applies to this binding
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css::uno::Reference<css::xsd::XDataType> getDataType() const;
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/// determine whether binding is valid according to the given data type
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bool isValid_DataType() const;
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/// explain validity of binding with respect to the given data type
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OUString explainInvalid_DataType();
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/// 'clear' this binding - remove all listeners, etc.
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void clear();
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/// distribute MIPs from current node recursively to children
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void distributeMIP( const css::uno::Reference<css::xml::dom::XNode> &rxNode );
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/// implement get*Namespaces()
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css::uno::Reference<css::container::XNameContainer> _getNamespaces() const;
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/// implement set*Namespaces()
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void _setNamespaces( const css::uno::Reference<css::container::XNameContainer>&, bool bBinding );
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/// set a useful default binding ID (if none is set)
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void _checkBindingID();
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public:
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virtual css::uno::Sequence<css::uno::Type> SAL_CALL getSupportedValueTypes() override;
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virtual sal_Bool SAL_CALL supportsType( const css::uno::Type& aType ) override;
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virtual css::uno::Any SAL_CALL getValue( const css::uno::Type& aType ) override;
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virtual void SAL_CALL setValue( const css::uno::Any& aValue ) override;
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// XListEntrySource
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virtual sal_Int32 SAL_CALL getListEntryCount() override;
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virtual OUString SAL_CALL getListEntry( sal_Int32 nPosition ) override;
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virtual css::uno::Sequence<OUString> SAL_CALL getAllListEntries() override;
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virtual void SAL_CALL addListEntryListener( const css::uno::Reference<css::form::binding::XListEntryListener>& ) override;
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virtual void SAL_CALL removeListEntryListener( const css::uno::Reference<css::form::binding::XListEntryListener>&) override;
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// XValidator:
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virtual sal_Bool SAL_CALL isValid(
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const css::uno::Any& ) override;
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virtual OUString SAL_CALL explainInvalid(
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const css::uno::Any& ) override;
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virtual void SAL_CALL addValidityConstraintListener(
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const css::uno::Reference<css::form::validation::XValidityConstraintListener>& xListener ) override;
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virtual void SAL_CALL removeValidityConstraintListener(
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const css::uno::Reference<css::form::validation::XValidityConstraintListener>& xListener ) override;
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// XModifyBroadcaster & friends:
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// inform listeners about changes in our values
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public:
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virtual void SAL_CALL addModifyListener(
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const css::uno::Reference<css::util::XModifyListener>& xListener ) override;
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virtual void SAL_CALL removeModifyListener(
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const css::uno::Reference<css::util::XModifyListener>& xListener ) override;
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// XNamed:
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// get/set name
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public:
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virtual OUString SAL_CALL getName() override;
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virtual void SAL_CALL setName( const OUString& ) override;
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// xml::dom::event::XEventListener
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// receive an event if our node changed
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virtual void SAL_CALL handleEvent(
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const css::uno::Reference<css::xml::dom::events::XEvent>& xEvent ) override;
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// XUnoTunnel
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virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence<sal_Int8>& ) override;
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// XCloneable
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virtual css::uno::Reference<css::util::XCloneable> SAL_CALL createClone() override;
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};
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} // namespace xforms
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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