1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ 2 /* 3 * This file is part of the LibreOffice project. 4 * 5 * This Source Code Form is subject to the terms of the Mozilla Public 6 * License, v. 2.0. If a copy of the MPL was not distributed with this 7 * file, You can obtain one at http://mozilla.org/MPL/2.0/. 8 * 9 * This file incorporates work covered by the following license notice: 10 * 11 * Licensed to the Apache Software Foundation (ASF) under one or more 12 * contributor license agreements. See the NOTICE file distributed 13 * with this work for additional information regarding copyright 14 * ownership. The ASF licenses this file to you under the Apache 15 * License, Version 2.0 (the "License"); you may not use this file 16 * except in compliance with the License. You may obtain a copy of 17 * the License at http://www.apache.org/licenses/LICENSE-2.0 . 18 */ 19 20 #ifndef INCLUDED_SD_SOURCE_UI_SIDEBAR_MASTERPAGECONTAINERFILLER_HXX 21 #define INCLUDED_SD_SOURCE_UI_SIDEBAR_MASTERPAGECONTAINERFILLER_HXX 22 23 #include <memory> 24 #include "MasterPageContainer.hxx" 25 #include "MasterPageDescriptor.hxx" 26 #include <tools/AsynchronousTask.hxx> 27 28 namespace sd { 29 class TemplateScanner; 30 class TemplateEntry; 31 } 32 33 namespace sd { namespace sidebar { 34 35 /** Fill a MasterPageContainer with information about the available master 36 pages. These are provided by one default page and from the existing 37 Impress templates. This is done asynchronously. 38 */ 39 class MasterPageContainerFiller 40 : public ::sd::tools::AsynchronousTask 41 { 42 public: 43 class ContainerAdapter 44 { 45 public: 46 virtual MasterPageContainer::Token PutMasterPage ( 47 const SharedMasterPageDescriptor& rpDescriptor) = 0; 48 /** This method is called when all Impress templates have been added 49 to the container via the PutMasterPage() method. 50 */ 51 virtual void FillingDone() = 0; 52 53 protected: ~ContainerAdapter()54 ~ContainerAdapter() {} 55 }; 56 57 explicit MasterPageContainerFiller (ContainerAdapter& rContainerAdapter); 58 virtual ~MasterPageContainerFiller(); 59 60 /** Run the next step of the task. After HasNextStep() returns false 61 this method should ignore further calls. 62 */ 63 virtual void RunNextStep() override; 64 65 /** Return <TRUE/> when there is at least one more step to execute. 66 When the task has been executed completely then <FALSE/> is 67 returned. 68 */ 69 virtual bool HasNextStep() override; 70 71 private: 72 ContainerAdapter& mrContainerAdapter; 73 // Remember what the next step has to do. 74 enum State { 75 INITIALIZE_TEMPLATE_SCANNER, 76 SCAN_TEMPLATE, 77 ADD_TEMPLATE, 78 ERROR, 79 DONE 80 } meState; 81 ::std::unique_ptr<TemplateScanner> mpScannerTask; 82 const TemplateEntry* mpLastAddedEntry; 83 int mnIndex; 84 85 State ScanTemplate(); 86 State AddTemplate(); 87 }; 88 89 } } // end of namespace sd::sidebar 90 91 #endif 92 93 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ 94