[vlc-devel] [PATCH 03/17] qt/medialibrary: Create MLPlaylistListModel
Benjamin Arnaud
benjamin.arnaud at videolabs.io
Fri Feb 19 10:25:27 UTC 2021
---
modules/gui/qt/Makefile.am | 3 +
.../qt/medialibrary/mlplaylistlistmodel.cpp | 281 ++++++++++++++++++
.../qt/medialibrary/mlplaylistlistmodel.hpp | 84 ++++++
po/POTFILES.in | 2 +
4 files changed, 370 insertions(+)
create mode 100644 modules/gui/qt/medialibrary/mlplaylistlistmodel.cpp
create mode 100644 modules/gui/qt/medialibrary/mlplaylistlistmodel.hpp
diff --git a/modules/gui/qt/Makefile.am b/modules/gui/qt/Makefile.am
index ffb2fdc658..6c0516dbce 100644
--- a/modules/gui/qt/Makefile.am
+++ b/modules/gui/qt/Makefile.am
@@ -170,6 +170,8 @@ libqt_plugin_la_SOURCES = \
gui/qt/medialibrary/mlvideomodel.hpp \
gui/qt/medialibrary/mlplaylist.cpp \
gui/qt/medialibrary/mlplaylist.hpp \
+ gui/qt/medialibrary/mlplaylistlistmodel.cpp \
+ gui/qt/medialibrary/mlplaylistlistmodel.hpp \
gui/qt/menus/custom_menus.cpp \
gui/qt/menus/custom_menus.hpp \
gui/qt/menus/qml_menu_wrapper.cpp \
@@ -332,6 +334,7 @@ nodist_libqt_plugin_la_SOURCES = \
gui/qt/medialibrary/mlvideo.moc.cpp \
gui/qt/medialibrary/mlvideomodel.moc.cpp \
gui/qt/medialibrary/mlplaylist.moc.cpp \
+ gui/qt/medialibrary/mlplaylistlistmodel.moc.cpp \
gui/qt/menus/custom_menus.moc.cpp \
gui/qt/menus/qml_menu_wrapper.moc.cpp \
gui/qt/menus/menus.moc.cpp \
diff --git a/modules/gui/qt/medialibrary/mlplaylistlistmodel.cpp b/modules/gui/qt/medialibrary/mlplaylistlistmodel.cpp
new file mode 100644
index 0000000000..f5f2adfd0e
--- /dev/null
+++ b/modules/gui/qt/medialibrary/mlplaylistlistmodel.cpp
@@ -0,0 +1,281 @@
+/*****************************************************************************
+ * Copyright (C) 2021 VLC authors and VideoLAN
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * ( at your option ) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "mlplaylistlistmodel.hpp"
+
+// VLC includes
+#include <vlc_media_library.h>
+#include <qt.hpp>
+
+// MediaLibrary includes
+#include "mlhelper.hpp"
+#include "mlplaylist.hpp"
+
+//=================================================================================================
+// MLPlaylistListModel
+//=================================================================================================
+
+MLPlaylistListModel::MLPlaylistListModel(vlc_medialibrary_t * ml, QObject * parent)
+ : MLBaseModel(parent)
+{
+ m_ml = ml;
+}
+
+/* explicit */ MLPlaylistListModel::MLPlaylistListModel(QObject * parent)
+ : MLBaseModel(parent) {}
+
+//-------------------------------------------------------------------------------------------------
+
+/* Q_INVOKABLE */ MLItemId MLPlaylistListModel::create(const QString & name)
+{
+ assert(m_ml);
+
+ vlc_ml_playlist_t * playlist = vlc_ml_playlist_create(m_ml, qtu(name));
+
+ if (playlist)
+ return MLItemId(playlist->i_id, VLC_ML_PARENT_PLAYLIST);
+ else
+ return MLItemId();
+}
+
+/* Q_INVOKABLE */ bool MLPlaylistListModel::append(const MLItemId & playlistId,
+ const QVariantList & ids)
+{
+ assert(m_ml);
+
+ bool result = true;
+
+ vlc_ml_query_params_t query;
+
+ memset(&query, 0, sizeof(vlc_ml_query_params_t));
+
+ for (const QVariant & id : ids)
+ {
+ if (id.canConvert<MLItemId>() == false)
+ {
+ result = false;
+
+ continue;
+ }
+
+ const MLItemId & itemId = id.value<MLItemId>();
+
+ if (itemId.id == 0)
+ {
+ result = false;
+
+ continue;
+ }
+
+ // NOTE: When we have a parent it's a collection of media(s).
+ if (itemId.type != VLC_ML_PARENT_UNKNOWN)
+ {
+ ml_unique_ptr<vlc_ml_media_list_t> list;
+
+ list.reset(vlc_ml_list_media_of(m_ml, &query, itemId.type, itemId.id));
+
+ if (list == nullptr)
+ {
+ result = false;
+
+ continue;
+ }
+
+ for (const vlc_ml_media_t & media : ml_range_iterate<vlc_ml_media_t>(list))
+ {
+ if (vlc_ml_playlist_append(m_ml, playlistId.id, media.i_id) != VLC_SUCCESS)
+ result = false;
+ }
+ }
+ // NOTE: Otherwise we add the media directly.
+ else if (vlc_ml_playlist_append(m_ml, playlistId.id, itemId.id) != VLC_SUCCESS)
+ result = false;
+ }
+
+ return result;
+}
+
+//-------------------------------------------------------------------------------------------------
+
+/* Q_INVOKABLE */ bool MLPlaylistListModel::deletePlaylists(const QVariantList & ids)
+{
+ assert(m_ml);
+
+ bool result = true;
+
+ for (const QVariant & id : ids)
+ {
+ if (id.canConvert<MLItemId>() == false)
+ {
+ result = false;
+
+ continue;
+ }
+
+ if (vlc_ml_playlist_delete(m_ml, id.value<MLItemId>().id) != VLC_SUCCESS)
+ result = false;
+ }
+
+ return result;
+}
+
+//-------------------------------------------------------------------------------------------------
+
+/* Q_INVOKABLE */ MLItemId MLPlaylistListModel::getItemId(int index) const
+{
+ if (index < 0 || index >= rowCount())
+ return MLItemId();
+
+ return item(index)->getId();
+}
+
+//-------------------------------------------------------------------------------------------------
+// QAbstractItemModel implementation
+//-------------------------------------------------------------------------------------------------
+
+QHash<int, QByteArray> MLPlaylistListModel::roleNames() const /* override */
+{
+ return
+ {
+ { PLAYLIST_ID, "id" },
+ { PLAYLIST_NAME, "name" },
+ { PLAYLIST_COVER, "cover" },
+ { PLAYLIST_COUNT, "count" }
+ };
+}
+
+QVariant MLPlaylistListModel::data(const QModelIndex & index, int role) const /* override */
+{
+ const MLPlaylist * playlist = static_cast<MLPlaylist *>(item(index.row()));
+
+ if (playlist == nullptr)
+ return QVariant();
+
+ switch (role)
+ {
+ // NOTE: This is the condition for QWidget view(s).
+ case Qt::DisplayRole:
+ if (index.column() == 0)
+ return QVariant::fromValue(playlist->getName());
+ else
+ return QVariant();
+ // NOTE: These are the conditions for QML view(s).
+ case PLAYLIST_ID:
+ return QVariant::fromValue(playlist->getId());
+ case PLAYLIST_NAME:
+ return QVariant::fromValue(playlist->getName());
+ case PLAYLIST_COVER:
+ return QVariant::fromValue(playlist->getCover());
+ case PLAYLIST_COUNT:
+ return QVariant::fromValue(playlist->getCount());
+ default:
+ return QVariant();
+ }
+}
+
+//-------------------------------------------------------------------------------------------------
+// QAbstractItemModel reimplementation
+//-------------------------------------------------------------------------------------------------
+
+QVariant MLPlaylistListModel::headerData(int section, Qt::Orientation orientation,
+ int role) const /* override */
+{
+ if (role != Qt::DisplayRole || orientation == Qt::Vertical)
+ return QVariant();
+
+ if (section == 0)
+ return QVariant::fromValue(qtr("Name"));
+ else
+ return QVariant();
+}
+
+//-------------------------------------------------------------------------------------------------
+// Protected MLBaseModel implementation
+//-------------------------------------------------------------------------------------------------
+
+vlc_ml_sorting_criteria_t MLPlaylistListModel::roleToCriteria(int role) const /* override */
+{
+ if (role == PLAYLIST_NAME)
+ return VLC_ML_SORTING_ALPHA;
+ else
+ return VLC_ML_SORTING_DEFAULT;
+}
+
+ListCacheLoader<std::unique_ptr<MLItem>> * MLPlaylistListModel::createLoader() const /* override */
+{
+ return new Loader(*this);
+}
+
+//-------------------------------------------------------------------------------------------------
+// Private MLBaseModel reimplementation
+//-------------------------------------------------------------------------------------------------
+
+void MLPlaylistListModel::onVlcMlEvent(const MLEvent & event) /* override */
+{
+ int type = event.i_type;
+
+ if (type == VLC_ML_EVENT_PLAYLIST_ADDED || type == VLC_ML_EVENT_PLAYLIST_UPDATED
+ ||
+ type == VLC_ML_EVENT_PLAYLIST_DELETED)
+ {
+ m_need_reset = true;
+
+ // NOTE: Maybe we should call this from MLBaseModel ?
+ emit resetRequested();
+ }
+
+ MLBaseModel::onVlcMlEvent(event);
+}
+
+//=================================================================================================
+// Loader
+//=================================================================================================
+
+MLPlaylistListModel::Loader::Loader(const MLPlaylistListModel & model)
+ : MLBaseModel::BaseLoader(model) {}
+
+size_t MLPlaylistListModel::Loader::count() const /* override */
+{
+ vlc_ml_query_params_t params = getParams().toCQueryParams();
+
+ return vlc_ml_count_playlists(m_ml, ¶ms);
+}
+
+std::vector<std::unique_ptr<MLItem>>
+MLPlaylistListModel::Loader::load(size_t index, size_t count) const /* override */
+{
+ vlc_ml_query_params_t params = getParams(index, count).toCQueryParams();
+
+ ml_unique_ptr<vlc_ml_playlist_list_t> list(vlc_ml_list_playlists(m_ml, ¶ms));
+
+ if (list == nullptr)
+ return {};
+
+ std::vector<std::unique_ptr<MLItem>> result;
+
+ for (const vlc_ml_playlist_t & playlist : ml_range_iterate<vlc_ml_playlist_t>(list))
+ {
+ result.emplace_back(std::make_unique<MLPlaylist>(m_ml, &playlist));
+ }
+
+ return result;
+}
diff --git a/modules/gui/qt/medialibrary/mlplaylistlistmodel.hpp b/modules/gui/qt/medialibrary/mlplaylistlistmodel.hpp
new file mode 100644
index 0000000000..b0b0f34629
--- /dev/null
+++ b/modules/gui/qt/medialibrary/mlplaylistlistmodel.hpp
@@ -0,0 +1,84 @@
+/*****************************************************************************
+ * Copyright (C) 2021 VLC authors and VideoLAN
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * ( at your option ) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef MLPLAYLISTLISTMODEL_HPP
+#define MLPLAYLISTLISTMODEL_HPP
+
+// MediaLibrary includes
+#include "mlbasemodel.hpp"
+
+// Forward declarations
+class vlc_medialibrary_t;
+class vlc_ml_playlist_t;
+
+class MLPlaylistListModel : public MLBaseModel
+{
+ Q_OBJECT
+
+public:
+ enum Roles
+ {
+ PLAYLIST_ID = Qt::UserRole + 1,
+ PLAYLIST_NAME,
+ PLAYLIST_COVER,
+ PLAYLIST_COUNT
+ };
+
+public:
+ MLPlaylistListModel(vlc_medialibrary_t * ml, QObject * parent = nullptr);
+
+ explicit MLPlaylistListModel(QObject * parent = nullptr);
+
+public: // Interface
+ Q_INVOKABLE MLItemId create(const QString & name);
+
+ Q_INVOKABLE bool append(const MLItemId & playlistId, const QVariantList & ids);
+
+ Q_INVOKABLE bool deletePlaylists(const QVariantList & ids);
+
+ MLItemId getItemId(int index) const;
+
+public: // QAbstractItemModel implementation
+ QHash<int, QByteArray> roleNames() const override;
+
+ QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const override;
+
+public: // QAbstractItemModel reimplementation
+ QVariant headerData(int section, Qt::Orientation orientation,
+ int role = Qt::DisplayRole) const override;
+
+protected: // MLBaseModel implementation
+ vlc_ml_sorting_criteria_t roleToCriteria(int role) const override;
+
+ ListCacheLoader<std::unique_ptr<MLItem>> * createLoader() const override;
+
+private: // MLBaseModel implementation
+ void onVlcMlEvent(const MLEvent & event) override;
+
+private:
+ struct Loader : public MLBaseModel::BaseLoader
+ {
+ Loader(const MLPlaylistListModel & model);
+
+ size_t count() const override;
+
+ std::vector<std::unique_ptr<MLItem>> load(size_t index, size_t count) const override;
+ };
+};
+
+#endif // MLPLAYLISTLISTMODEL_HPP
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 9f01428a47..396418fb24 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -770,6 +770,8 @@ modules/gui/qt/medialibrary/mlbookmarkmodel.cpp
modules/gui/qt/medialibrary/mlbookmarkmodel.hpp
modules/gui/qt/medialibrary/mlfoldersmodel.cpp
modules/gui/qt/medialibrary/mlfoldersmodel.hpp
+modules/gui/qt/medialibrary/mlplaylistlistmodel.cpp
+modules/gui/qt/medialibrary/mlplaylistlistmodel.hpp
modules/gui/qt/menus/menus.cpp
modules/gui/qt/menus/menus.hpp
modules/gui/qt/qt.cpp
--
2.25.1
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