feat(src/components/camera/Camera): supports screenshots

linphone-desktop/assets/languages/en.ts

@@ -357,6 +357,13 @@ Server url not configured.</translation>
         <translation>Display tooltips to discover Linphone Desktop</translation>
     </message>
 </context>
+<context>
+    <name>Incall</name>
+    <message>
+        <source>saveScreenshotTitle</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>MainWindow</name>
     <message>

linphone-desktop/assets/languages/fr.ts

@@ -345,6 +345,13 @@ Url du serveur non configurée.</translation>
         <translation>Afficher les tooltips pour découvrir Linphone Desktop</translation>
     </message>
 </context>
+<context>
+    <name>Incall</name>
+    <message>
+        <source>saveScreenshotTitle</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>IncomingCall</name>
     <message>

linphone-desktop/src/components/camera/Camera.cpp

-#include "Camera.hpp"
-
+#include <QFileInfo>
 #include <QOpenGLFunctions>
 #include <QOpenGLTexture>
 
+#include "../../utils.hpp"
 #include "../core/CoreManager.hpp"
 
 #include "Camera.hpp"
@@ -52,15 +52,10 @@ QOpenGLFramebufferObject *CameraRenderer::createFramebufferObject (const QSize &
   context_info->width = size.width();
   context_info->height = size.height();
 
-  shared_ptr<linphone::Call> linphone_call = m_camera->m_call->getLinphoneCall();
-  linphone::CallState state = linphone_call->getState();
-
-  if (state == linphone::CallStateConnected || state == linphone::CallStateStreamsRunning) {
   if (m_camera->m_is_preview)
     CoreManager::getInstance()->getCore()->setNativePreviewWindowId(context_info);
   else
-      linphone_call->setNativeVideoWindowId(context_info);
-  }
+    m_camera->m_call->getLinphoneCall()->setNativeVideoWindowId(context_info);
 
   return new QOpenGLFramebufferObject(size, format);
 }
@@ -95,9 +90,30 @@ Camera::~Camera () {
 }
 
 QQuickFramebufferObject::Renderer *Camera::createRenderer () const {
-  return new CameraRenderer(this);
+  m_renderer = new CameraRenderer(this);
+  return m_renderer;
 }
 
+// -----------------------------------------------------------------------------
+
+void Camera::takeScreenshot () {
+  m_screenshot = m_renderer->framebufferObject()->toImage();
+}
+
+void Camera::saveScreenshot (const QString &path) {
+  QString formatted_path = path.startsWith("file://") ? path.mid(sizeof("file://") - 1) : path;
+  QFileInfo info(formatted_path);
+  QString extension = info.suffix();
+
+  m_screenshot.save(
+    formatted_path,
+    extension.size() > 0 ? ::Utils::qStringToLinphoneString(extension).c_str() : "jpg",
+    100
+  );
+}
+
+// -----------------------------------------------------------------------------
+
 void Camera::mousePressEvent (QMouseEvent *) {
   setFocus(true);
 }

linphone-desktop/src/components/camera/Camera.hpp

 #ifndef CAMERA_H_
 #define CAMERA_H_
 
-#include "../call/CallModel.hpp"
-
+#include <QImage>
 #include <QOpenGLFramebufferObject>
 #include <QQuickFramebufferObject>
 
+#include "../call/CallModel.hpp"
+
 // =============================================================================
 
 class Camera;
 struct ContextInfo;
 
 class CameraRenderer : public QQuickFramebufferObject::Renderer {
+  friend class Camera;
+
 public:
   CameraRenderer (const Camera *camera);
   ~CameraRenderer () = default;
@@ -40,6 +43,9 @@ public:
 
   QQuickFramebufferObject::Renderer *createRenderer () const override;
 
+  Q_INVOKABLE void takeScreenshot ();
+  Q_INVOKABLE void saveScreenshot (const QString &path);
+
 signals:
   void callChanged (CallModel *call);
   void isPreviewChanged (bool is_preview);
@@ -54,6 +60,9 @@ private:
   bool m_is_preview = false;
   CallModel *m_call = nullptr;
   ContextInfo *m_context_info;
+
+  mutable CameraRenderer *m_renderer;
+  QImage m_screenshot;
 };
 
 #endif // CAMERA_H_

linphone-desktop/ui/modules/Linphone/Chat/FileMessage.qml

@@ -183,8 +183,8 @@ Row {
           id: fileDialog
 
           folder: shortcuts.home
-          title: qsTr('downloadFileTitle')
           selectExisting: false
+          title: qsTr('downloadFileTitle')
 
           onAccepted: proxyModel.downloadFile(index, fileUrl)
         }

linphone-desktop/ui/views/App/Calls/Incall.qml

 import QtQuick 2.7
+import QtQuick.Dialogs 1.2
 import QtQuick.Layouts 1.3
 
 import Common 1.0
@@ -84,13 +85,31 @@ Rectangle {
         id: cameraActions
 
         anchors.right: parent.right
-        active: Boolean(call.videoInputEnabled)
+        active: Boolean(call.videoInputEnabled) && call.status !== CallModel.CallStatusEnded
 
         sourceComponent: ActionBar {
           iconSize: CallStyle.header.iconSize
 
           ActionButton {
             icon: 'screenshot'
+
+            FileDialog {
+              id: fileDialog
+
+              folder: shortcuts.home
+              selectExisting: false
+              title: qsTr('saveScreenshotTitle')
+
+              onAccepted: cameraLoader.item.saveScreenshot(fileUrl)
+            }
+
+            onClicked: {
+              // TODO: At this moment, FileDialog does not support default filename, use this name in the future:
+              //'linphone ' + ((new Date()).toLocaleString(Qt.locale(), 'yyyy-MM-dd hh:mm:ss')) + '.jpg'
+
+              cameraLoader.item.takeScreenshot()
+              fileDialog.open()
+            }
           }
 
           ActionButton {
@@ -186,8 +205,9 @@ Rectangle {
       }
 
       Loader {
-        anchors.centerIn: parent
+        id: cameraLoader
 
+        anchors.centerIn: parent
         sourceComponent: call.videoInputEnabled ? camera : avatar
       }
     }
@@ -200,6 +220,8 @@ Rectangle {
       Layout.fillWidth: true
       Layout.preferredHeight: CallStyle.actionArea.height
 
+      visible: call.status !== CallModel.CallStatusEnded
+
       GridLayout {
         anchors {
           left: parent.left