feat(src/app/App): add a splash screen

linphone-desktop/resources.qrc

@@ -148,6 +148,7 @@
     <file>assets/images/speaker_on_hovered.svg</file>
     <file>assets/images/speaker_on_normal.svg</file>
     <file>assets/images/speaker_on_pressed.svg</file>
+    <file>assets/images/splash_screen.svg</file>
     <file>assets/images/tooltip_arrow_bottom.svg</file>
     <file>assets/images/tooltip_arrow_left.svg</file>
     <file>assets/images/tooltip_arrow_right.svg</file>
@@ -343,6 +344,7 @@
     <file>ui/views/App/Settings/SettingsUi.qml</file>
     <file>ui/views/App/Settings/SettingsVideo.qml</file>
     <file>ui/views/App/Settings/SettingsWindow.qml</file>
+    <file>ui/views/App/SplashScreen/SplashScreen.qml</file>
     <file>ui/views/App/Styles/Calls/CallStyle.qml</file>
     <file>ui/views/App/Styles/Calls/CallsWindowStyle.qml</file>
     <file>ui/views/App/Styles/Main/Assistant/AssistantAbstractViewStyle.qml</file>
@@ -360,5 +362,6 @@
     <file>ui/views/App/Styles/Main/ManageAccountsStyle.qml</file>
     <file>ui/views/App/Styles/qmldir</file>
     <file>ui/views/App/Styles/Settings/SettingsWindowStyle.qml</file>
+    <file>ui/views/App/Styles/SplashScreen/SplashScreenStyle.qml</file>
   </qresource>
 </RCC>

linphone-desktop/src/app/App.cpp

@@ -55,6 +55,8 @@
 #define QML_VIEW_CALLS_WINDOW "qrc:/ui/views/App/Calls/CallsWindow.qml"
 #define QML_VIEW_SETTINGS_WINDOW "qrc:/ui/views/App/Settings/SettingsWindow.qml"
 
+#define QML_VIEW_SPLASH_SCREEN "qrc:/ui/views/App/SplashScreen/SplashScreen.qml"
+
 // =============================================================================
 
 inline bool installLocale (App &app, QTranslator &translator, const QLocale &locale) {
@@ -92,6 +94,35 @@ App::~App () {
 
 // -----------------------------------------------------------------------------
 
+inline QQuickWindow *createSubWindow (App *app, const char *path) {
+  QQmlEngine *engine = app->getEngine();
+
+  QQmlComponent component(engine, QUrl(path));
+  if (component.isError()) {
+    qWarning() << component.errors();
+    abort();
+  }
+
+  QObject *object = component.create();
+  QQmlEngine::setObjectOwnership(object, QQmlEngine::CppOwnership);
+  object->setParent(app->getMainWindow());
+
+  return qobject_cast<QQuickWindow *>(object);
+}
+
+// -----------------------------------------------------------------------------
+
+inline void activeSplashScreen (App *app) {
+  QQuickWindow *splash_screen = createSubWindow(app, QML_VIEW_SPLASH_SCREEN);
+
+  QObject::connect(
+    CoreManager::getInstance(), &CoreManager::linphoneCoreCreated, splash_screen, [splash_screen]() {
+      splash_screen->hide();
+      splash_screen->deleteLater();
+    }
+  );
+}
+
 void App::initContentApp () {
   // Init core.
   CoreManager::init(this, m_parser.value("config"));
@@ -124,6 +155,9 @@ void App::initContentApp () {
   if (m_engine.rootObjects().isEmpty())
     qFatal("Unable to open main window.");
 
+  // Load splashscreen.
+  activeSplashScreen(this);
+
   CoreManager *core = CoreManager::getInstance();
 
   if (m_parser.isSet("selftest"))
@@ -210,24 +244,6 @@ void App::tryToUsePreferredLocale () {
 
 // -----------------------------------------------------------------------------
 
-inline QQuickWindow *createSubWindow (App *app, const char *path) {
-  QQmlEngine *engine = app->getEngine();
-
-  QQmlComponent component(engine, QUrl(path));
-  if (component.isError()) {
-    qWarning() << component.errors();
-    abort();
-  }
-
-  QObject *object = component.create();
-  QQmlEngine::setObjectOwnership(object, QQmlEngine::CppOwnership);
-  object->setParent(app->getMainWindow());
-
-  return qobject_cast<QQuickWindow *>(object);
-}
-
-// -----------------------------------------------------------------------------
-
 QQuickWindow *App::getCallsWindow () {
   if (!m_calls_window)
     m_calls_window = createSubWindow(this, QML_VIEW_CALLS_WINDOW);

linphone-desktop/ui/views/App/SplashScreen/SplashScreen.qml

@@ -1,8 +1,47 @@
 import QtQuick 2.7
 import QtQuick.Window 2.2
 
+import Common 1.0
+
+import App.Styles 1.0
+
 // =============================================================================
 
 Window {
+  color: SplashScreenStyle.color
+  flags: Qt.SplashScreen
+  modality: Qt.ApplicationModal
+  visible: image.status === Image.Ready
 
+  x: (Screen.width - image.width) / 2
+  y: (Screen.height - image.height) / 2
+
+  height: image.paintedHeight
+  width: image.paintedWidth
+
+  Image {
+    id: image
+
+    anchors.centerIn: parent
+
+    height: SplashScreenStyle.height
+    width: SplashScreenStyle.width
+
+    fillMode: Image.PreserveAspectFit
+    mipmap: true
+
+    source: SplashScreenStyle.image
+
+    BusyIndicator {
+      height: SplashScreenStyle.busyIndicator.height
+      width: SplashScreenStyle.busyIndicator.width
+
+      anchors {
+        bottom: parent.bottom
+        bottomMargin: SplashScreenStyle.busyIndicator.bottomMargin
+
+        horizontalCenter: parent.horizontalCenter
+      }
+    }
+  }
 }

linphone-desktop/ui/views/App/Styles/SplashScreen/SplashScreenStyle.qml

@@ -0,0 +1,17 @@
+pragma Singleton
+import QtQuick 2.7
+
+// =============================================================================
+
+QtObject {
+  property color color: '#444444' // Not a `Common.Color`. Specific case.
+  property int height: 350
+  property int width: 620
+  property url image: 'qrc:/assets/images/splash_screen.svg'
+
+  property QtObject busyIndicator: QtObject {
+    property int bottomMargin: 25
+    property int height: 24
+    property int width: 24
+  }
+}

linphone-desktop/ui/views/App/Styles/qmldir

@@ -23,3 +23,5 @@ singleton MainWindowStyle                        1.0 Main/MainWindowStyle.qml
 singleton ManageAccountsStyle                    1.0 Main/ManageAccountsStyle.qml
 
 singleton SettingsWindowStyle                    1.0 Settings/SettingsWindowStyle.qml
+
+singleton SplashScreenStyle                      1.0 SplashScreen/SplashScreenStyle.qml