Add plugin for taking photos on remote device

Summary: This plugin sends a request for a photo to the connected device. The device then sends the photo back, currently via the SharePlugin.

Test Plan:
kdeconnect-cli --photo
Check for photo in Downlaods folder

Reviewers: #kde_connect, broulik, albertvaka

Reviewed By: #kde_connect, albertvaka

Subscribers: sredman, albertvaka, apol, ngraham, kdeconnect

Tags: #kde_connect

Differential Revision: https://phabricator.kde.org/D18140

cli/kdeconnect-cli.cpp

@@ -72,6 +72,7 @@ int main(int argc, char** argv)
     parser.addOption(QCommandLineOption(QStringLiteral("execute-command"), i18n("Executes a remote command by id"), QStringLiteral("id")));
     parser.addOption(QCommandLineOption(QStringList{QStringLiteral("k"), QStringLiteral("send-keys")}, i18n("Sends keys to a said device")));
     parser.addOption(QCommandLineOption(QStringLiteral("my-id"), i18n("Display this device's id and exit")));
+    parser.addOption(QCommandLineOption(QStringLiteral("photo"), i18n("Open the connected device's camera and transfer the photo")));
     about.setupCommandLine(&parser);
 
     parser.addHelpOption();
@@ -228,6 +229,9 @@ int main(int argc, char** argv)
         } else if(parser.isSet(QStringLiteral("ring"))) {
             QDBusMessage msg = QDBusMessage::createMethodCall(QStringLiteral("org.kde.kdeconnect"), "/modules/kdeconnect/devices/"+device+"/findmyphone", QStringLiteral("org.kde.kdeconnect.device.findmyphone"), QStringLiteral("ring"));
             blockOnReply(QDBusConnection::sessionBus().asyncCall(msg));
+        } else if(parser.isSet(QStringLiteral("photo"))) {
+            QDBusMessage msg = QDBusMessage::createMethodCall(QStringLiteral("org.kde.kdeconnect"), "/modules/kdeconnect/devices/"+device+"/photo", QStringLiteral("org.kde.kdeconnect.device.photo"), QStringLiteral("requestPhoto"));
+            blockOnReply(QDBusConnection::sessionBus().asyncCall(msg));
         } else if(parser.isSet("send-keys")) {
             QString seq = parser.value("send-keys");
             QDBusMessage msg = QDBusMessage::createMethodCall("org.kde.kdeconnect", "/modules/kdeconnect/devices/"+device+"/remotekeyboard", "org.kde.kdeconnect.device.remotekeyboard", "sendKeyPress");

plugins/CMakeLists.txt

@@ -6,6 +6,7 @@ add_subdirectory(ping)
 add_subdirectory(battery)
 add_subdirectory(sendnotifications)
 add_subdirectory(mpriscontrol)
+add_subdirectory(photo)
 
 if(NOT SAILFISHOS)
     add_subdirectory(clipboard)

plugins/photo/CMakeLists.txt

@@ -0,0 +1,11 @@
+set(kdeconnect_photo_SRCS
+    photoplugin.cpp
+)
+
+kdeconnect_add_plugin(kdeconnect_photo JSON kdeconnect_photo.json SOURCES ${kdeconnect_photo_SRCS})
+
+target_link_libraries(kdeconnect_photo
+    kdeconnectcore
+    Qt5::DBus
+    KF5::I18n
+)

plugins/photo/kdeconnect_photo.json

@@ -0,0 +1,27 @@
+{
+    "KPlugin": {
+        "Authors": [
+            {
+                "Email": "nicolas.fella@gmx.de",
+                "Name": "Nicolas Fella"
+            }
+        ],
+        "Description": "Use a connected device to take a photo",
+        "EnabledByDefault": true,
+        "Icon": "camera-photo",
+        "Id": "kdeconnect_photo",
+        "License": "GPL",
+        "Name": "Photo",
+        "ServiceTypes": [
+            "KdeConnect/Plugin"
+        ],
+        "Version": "0.1",
+        "Website": "http://nicolasfella.wordpress.com"
+    },
+    "X-KdeConnect-OutgoingPacketType": [
+        "kdeconnect.photo.request"
+    ],
+    "X-KdeConnect-SupportedPacketType": [
+        "kdeconnect.photo"
+    ]
+}

plugins/photo/photoplugin.cpp

@@ -0,0 +1,76 @@
+/**
+ * Copyright 2019 Nicolas Fella <nicolas.fella@gmx.de>
+ *
+ * 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) version 3 or any later version
+ * accepted by the membership of KDE e.V. (or its successor approved
+ * by the membership of KDE e.V.), which shall act as a proxy
+ * defined in Section 14 of version 3 of the license.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "photoplugin.h"
+
+#include <KLocalizedString>
+#include <KPluginFactory>
+
+#include <QDebug>
+#include <QDBusConnection>
+#include <QLoggingCategory>
+
+#include <core/device.h>
+#include <core/daemon.h>
+#include <core/filetransferjob.h>
+
+K_PLUGIN_FACTORY_WITH_JSON( KdeConnectPluginFactory, "kdeconnect_photo.json", registerPlugin< PhotoPlugin >(); )
+
+Q_LOGGING_CATEGORY(KDECONNECT_PLUGIN_PHOTO, "kdeconnect.plugin.photo")
+
+PhotoPlugin::PhotoPlugin(QObject* parent, const QVariantList& args)
+    : KdeConnectPlugin(parent, args)
+{
+}
+
+PhotoPlugin::~PhotoPlugin()
+{
+}
+
+bool PhotoPlugin::receivePacket(const NetworkPacket& np)
+{
+
+    if (requestedFiles.isEmpty() || !np.hasPayload()) {
+        return true;
+    }
+
+    const QString& fileName = requestedFiles.takeFirst();
+    FileTransferJob* job = np.createPayloadTransferJob(QUrl::fromLocalFile(fileName));
+    connect(job, &FileTransferJob::result, this, [this, fileName] {
+        Q_EMIT photoReceived(fileName);
+    });
+    job->start();
+    return true;
+}
+
+void PhotoPlugin::requestPhoto(const QString& fileName)
+{
+    requestedFiles.append(fileName);
+    NetworkPacket np(PACKET_TYPE_PHOTO_REQUEST);
+    sendPacket(np);
+}
+
+QString PhotoPlugin::dbusPath() const
+{
+    return "/modules/kdeconnect/devices/" + device()->id() + "/photo";
+}
+
+#include "photoplugin.moc"
+

plugins/photo/photoplugin.h

@@ -0,0 +1,55 @@
+/**
+ * Copyright 2019 Nicolas Fella <nicolas.fella@gmx.de>
+ *
+ * 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) version 3 or any later version
+ * accepted by the membership of KDE e.V. (or its successor approved
+ * by the membership of KDE e.V.), which shall act as a proxy
+ * defined in Section 14 of version 3 of the license.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PHOTOPLUGIN_H
+#define PHOTOPLUGIN_H
+
+#include <QObject>
+
+#include <core/kdeconnectplugin.h>
+
+#define PACKET_TYPE_PHOTO_REQUEST QStringLiteral("kdeconnect.photo.request")
+#define PACKET_TYPE_PHOTO QStringLiteral("kdeconnect.photo")
+
+class Q_DECL_EXPORT PhotoPlugin
+    : public KdeConnectPlugin
+{
+    Q_OBJECT
+    Q_CLASSINFO("D-Bus Interface", "org.kde.kdeconnect.device.photo")
+
+public:
+    explicit PhotoPlugin(QObject* parent, const QVariantList& args);
+    ~PhotoPlugin() override;
+
+    Q_SCRIPTABLE void requestPhoto(const QString& fileName);
+
+    bool receivePacket(const NetworkPacket& np) override;
+    void connected() override {}
+
+    QString dbusPath() const override;
+
+Q_SIGNALS:
+    Q_SCRIPTABLE void photoReceived(const QString& fileName);
+
+private:
+    QStringList requestedFiles;
+};
+
+#endif