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1 #pragma once
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2 #include "library_manager.h"
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3 #include "metadb_callbacks.h"
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4 #include "callback_merit.h"
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5
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6 //! Callback service receiving notifications about Media Library content changes. Methods called only from main thread.\n
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7 //! Use library_callback_factory_t template to register.
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8 class NOVTABLE library_callback : public service_base {
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9 public:
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10 //! Called when new items are added to the Media Library.
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11 virtual void on_items_added(metadb_handle_list_cref items) = 0;
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12 //! Called when some items have been removed from the Media Library.
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13 virtual void on_items_removed(metadb_handle_list_cref items) = 0;
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14 //! Called when some items in the Media Library have been modified. \n
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15 //! The list is sorted by pointer value for convenient matching by binary search.
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16 virtual void on_items_modified(metadb_handle_list_cref items) = 0;
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17
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18 //! Is current on_items_modified() cycle called due to actual tags changed or dispaly hook operations? \n
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19 //! Supported since foobar2000 v2.0 beta 13
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20 static bool is_modified_from_hook();
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21
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22 FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(library_callback);
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23 };
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24
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25 //! \since 2.0
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26 class NOVTABLE library_callback_v2 : public library_callback {
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27 public:
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28 virtual void on_items_modified_v2(metadb_handle_list_cref items, metadb_io_callback_v2_data& data) = 0;
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29 virtual void on_library_initialized() = 0;
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30
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31 FB2K_MAKE_SERVICE_INTERFACE(library_callback_v2, library_callback);
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32 };
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33
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34 template<typename T>
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35 class library_callback_factory_t : public service_factory_single_t<T> {};
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36
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37 class NOVTABLE library_callback_dynamic {
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38 public:
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39 //! Called when new items are added to the Media Library.
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40 virtual void on_items_added(metadb_handle_list_cref items) = 0;
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41 //! Called when some items have been removed from the Media Library.
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42 virtual void on_items_removed(metadb_handle_list_cref items) = 0;
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43 //! Called when some items in the Media Library have been modified.
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44 //! The list is sorted by pointer value for convenient matching by binary search.
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45 virtual void on_items_modified(metadb_handle_list_cref items) = 0;
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46
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47 void register_callback(); void unregister_callback();
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48 };
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49
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50 //! Base class for library_callback_dynamic implementations, manages register/unregister calls for you
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51 class library_callback_dynamic_impl_base : public library_callback_dynamic {
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52 public:
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53 library_callback_dynamic_impl_base() { register_callback(); }
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54 ~library_callback_dynamic_impl_base() { unregister_callback(); }
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55
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56 //stub implementations - avoid pure virtual function call issues
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57 void on_items_added(metadb_handle_list_cref) override {}
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58 void on_items_removed(metadb_handle_list_cref) override {}
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59 void on_items_modified(metadb_handle_list_cref) override {}
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60
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61 PFC_CLASS_NOT_COPYABLE_EX(library_callback_dynamic_impl_base);
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62 };
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63
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64 //! \since 2.0
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65 class NOVTABLE library_callback_v2_dynamic {
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66 public:
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67 //! Called when new items are added to the Media Library.
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68 virtual void on_items_added(metadb_handle_list_cref items) = 0;
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69 //! Called when some items have been removed from the Media Library.
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70 virtual void on_items_removed(metadb_handle_list_cref items) = 0;
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71 //! Called when some items in the Media Library have been modified.
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72 //! The list is sorted by pointer value for convenient matching by binary search.
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73 virtual void on_items_modified_v2(metadb_handle_list_cref items, metadb_io_callback_v2_data & data) = 0;
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74
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75 virtual void on_library_initialized() = 0;
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76
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77 void register_callback(); void unregister_callback();
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78 };
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79
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80 //! \since 2.0
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81 //! //! Base class for library_callback_v2_dynamic implementations, manages register/unregister calls for you
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82 class library_callback_v2_dynamic_impl_base : public library_callback_v2_dynamic {
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83 public:
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84 library_callback_v2_dynamic_impl_base() { register_callback(); }
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85 ~library_callback_v2_dynamic_impl_base() { unregister_callback(); }
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86
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87 //stub implementations - avoid pure virtual function call issues
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88 void on_items_added(metadb_handle_list_cref) override {}
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89 void on_items_removed(metadb_handle_list_cref) override {}
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90 void on_items_modified_v2(metadb_handle_list_cref, metadb_io_callback_v2_data&) override {}
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91 void on_library_initialized() override {}
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92
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93 PFC_CLASS_NOT_COPYABLE_EX(library_callback_v2_dynamic_impl_base);
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94 };
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