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[office] Use Tracker as a tag provider.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| /* | ||
| * Copyright (C) 2016 Damien Caliste | ||
| * Contact: Damien Caliste <[email protected]> | ||
| * | ||
| * 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; version 2 only. | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
||
| #include "trackertagprovider.h" | ||
|
|
||
| #include <QSparqlConnection> | ||
| #include <QSparqlResult> | ||
| #include <QSparqlError> | ||
|
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| //The Tracker driver to use. | ||
| static const QString trackerDriver{"QTRACKER"}; | ||
|
|
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| class TrackerTagProvider::Private { | ||
| public: | ||
| Private() | ||
| : connection(new QSparqlConnection(trackerDriver)) | ||
| { | ||
| } | ||
|
|
||
| ~Private() { | ||
| delete connection; | ||
| } | ||
|
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| QSparqlConnection *connection; | ||
| }; | ||
|
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| TrackerTagProvider::TrackerTagProvider(QObject *parent) | ||
| : QObject(parent) | ||
| , d(new Private()) | ||
| { | ||
| } | ||
|
|
||
| TrackerTagProvider::~TrackerTagProvider() | ||
| { | ||
| delete d; | ||
| } | ||
|
|
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| void TrackerTagProvider::loadTags(const QString &path) | ||
| { | ||
| QSparqlQuery q(QString("SELECT ?label WHERE {" | ||
| " ?f nie:isStoredAs ?p ; nao:hasTag ?tag ." | ||
| " ?p nie:url '%1' ." | ||
| " ?tag a nao:Tag ; nao:prefLabel ?label ." | ||
| "} ORDER BY ASC(?label)").arg(QString(path).replace('\'', "\\\'"))); | ||
| QSparqlResult* result = d->connection->exec(q); | ||
| result->setProperty("path", QVariant(path)); | ||
| connect(result, &QSparqlResult::finished, this, &TrackerTagProvider::loadTagFinished); | ||
| } | ||
|
|
||
| void TrackerTagProvider::addTag(const QString &path, const QString &tag) | ||
| { | ||
| // First, check if tag exists. | ||
| QSparqlQuery q(QString("SELECT ?tag WHERE {" | ||
| " ?tag a nao:Tag ; nao:prefLabel '%1' ." | ||
| "} ORDER BY ASC(?label)").arg(QString(tag).replace('\'', "\\\'"))); | ||
| QSparqlResult* result = d->connection->exec(q); | ||
| result->setProperty("path", QVariant(path)); | ||
| result->setProperty("tag", QVariant(tag)); | ||
| connect(result, &QSparqlResult::finished, this, &TrackerTagProvider::existTagFinished); | ||
| } | ||
|
|
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| void TrackerTagProvider::addExistingTag(const QString &path, const QString &tag) | ||
| { | ||
| QSparqlQuery q(QString("INSERT {" | ||
| " ?f nao:hasTag ?tag" | ||
| "} WHERE {" | ||
| " ?f nie:isStoredAs ?p ." | ||
| " ?p nie:url '%1' ." | ||
| " ?tag nao:prefLabel '%2'" | ||
| "}").arg(QString(path).replace('\'', "\\\'")).arg(QString(tag).replace('\'', "\\\'")), QSparqlQuery::InsertStatement); | ||
| QSparqlResult* result = d->connection->exec(q); | ||
| connect(result, &QSparqlResult::finished, this, &TrackerTagProvider::addTagFinished); | ||
| } | ||
|
|
||
| void TrackerTagProvider::addNewTag(const QString &path, const QString &tag) | ||
| { | ||
| QSparqlQuery q(QString("INSERT {" | ||
| " _:tag a nao:Tag ; nao:prefLabel '%2' ." | ||
| " ?f nao:hasTag _:tag" | ||
| "} WHERE {" | ||
| " ?f nie:isStoredAs ?p ." | ||
| " ?p nie:url '%1' ." | ||
| "}").arg(QString(path).replace('\'', "\\\'")).arg(QString(tag).replace('\'', "\\\'")), QSparqlQuery::InsertStatement); | ||
| QSparqlResult* result = d->connection->exec(q); | ||
| connect(result, &QSparqlResult::finished, this, &TrackerTagProvider::addTagFinished); | ||
| } | ||
|
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| void TrackerTagProvider::removeTag(const QString &path, const QString &tag) | ||
| { | ||
| QSparqlQuery q(QString("DELETE {" | ||
| " ?f nao:hasTag ?tag" | ||
| "} WHERE {" | ||
| " ?f nie:isStoredAs ?p ." | ||
| " ?p nie:url '%1' ." | ||
| " ?tag nao:prefLabel '%2' ." | ||
| "}").arg(QString(path).replace('\'', "\\\'")).arg(QString(tag).replace('\'', "\\\'")), QSparqlQuery::DeleteStatement); | ||
| QSparqlResult* result = d->connection->exec(q); | ||
| connect(result, &QSparqlResult::finished, this, &TrackerTagProvider::removeTagFinished); | ||
| } | ||
|
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| void TrackerTagProvider::loadTagFinished() | ||
| { | ||
| QSparqlResult *r = qobject_cast<QSparqlResult*>(sender()); | ||
| QList<QString> tags; | ||
|
|
||
| if (!r->hasError()) { | ||
| while (r->next()) { | ||
| tags.append(r->binding(0).value().toString()); | ||
| } | ||
|
|
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| emit tagLoaded(r->property("path").toString(), tags); | ||
| } | ||
|
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| r->deleteLater(); | ||
| } | ||
|
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| void TrackerTagProvider::existTagFinished() | ||
| { | ||
| QSparqlResult *r = qobject_cast<QSparqlResult*>(sender()); | ||
|
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||
| if (!r->hasError()) { | ||
| if (r->next()) { | ||
| addExistingTag(r->property("path").toString(), r->property("tag").toString()); | ||
| } else { | ||
| addNewTag(r->property("path").toString(), r->property("tag").toString()); | ||
| } | ||
| } | ||
|
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| r->deleteLater(); | ||
| } | ||
|
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| void TrackerTagProvider::addTagFinished() | ||
| { | ||
| QSparqlResult *r = qobject_cast<QSparqlResult*>(sender()); | ||
|
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| r->deleteLater(); | ||
| } | ||
|
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| void TrackerTagProvider::removeTagFinished() | ||
| { | ||
| QSparqlResult *r = qobject_cast<QSparqlResult*>(sender()); | ||
|
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||
| r->deleteLater(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /* | ||
| * Copyright (C) 2016 Damien Caliste | ||
| * Contact: Damien Caliste <[email protected]> | ||
| * | ||
| * 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; version 2 only. | ||
| * | ||
| * 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 TRACKERTAGPROVIDER_H | ||
| #define TRACKERTAGPROVIDER_H | ||
|
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| #include <QtCore/QObject> | ||
|
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| class TrackerTagProvider : public QObject | ||
| { | ||
| Q_OBJECT | ||
|
|
||
| public: | ||
| TrackerTagProvider(QObject *parent = 0); | ||
| ~TrackerTagProvider(); | ||
|
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| void loadTags(const QString &path); | ||
| void addTag(const QString &path, const QString &tag); | ||
| void removeTag(const QString &path, const QString &tag); | ||
|
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| signals: | ||
| void tagLoaded(const QString &path, const QList<QString> &tags); | ||
|
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| private Q_SLOTS: | ||
| void loadTagFinished(); | ||
| void existTagFinished(); | ||
| void addTagFinished(); | ||
| void removeTagFinished(); | ||
|
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| private: | ||
| class Private; | ||
| Private *d; | ||
|
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| void addNewTag(const QString &path, const QString &tag); | ||
| void addExistingTag(const QString &path, const QString &tag); | ||
| }; | ||
|
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| #endif |