[alien] add snapshot functionality to the alien-manager protocol. JB#…

…49069
sailfishos · Apr 17, 2020 · 6ca4701 · 6ca4701
1 parent 1e4ffb0
commit 6ca4701
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Showing 3 changed files with 17 additions and 0 deletions.
diff --git a/protocol/alien-manager.xml b/protocol/alien-manager.xml
@@ -214,5 +214,13 @@
                 kill it.
             </description>
         </event>
+
+        <request name="snapshot">
+            <description summary="ask the server to take a snapshot of the surface">
+                By calling this request the client asks the compositor to snapshot
+                this surface. The snapshot will be shown on the surface until a new
+                frame is posted.
+            </description>
+        </request>
     </interface>
 </protocol>
diff --git a/src/compositor/alienmanager/aliensurface.cpp b/src/compositor/alienmanager/aliensurface.cpp
@@ -124,6 +124,14 @@ void AlienSurface::alien_surface_set_minimized(Resource *resource)
     emit surface()->lowerRequested();
 }
 
+void AlienSurface::alien_surface_snapshot(Resource *resource)
+{
+    Q_UNUSED(resource)
+    // calling configure with hasBuffer = false here will cause
+    // WindowPixmapItem to take a snapshot
+    emit surface()->configure(false);
+}
+
 void AlienSurface::configure(bool hasBuffer)
 {
     if (hasBuffer && m_serial == 0) {

diff --git a/src/compositor/alienmanager/aliensurface.h b/src/compositor/alienmanager/aliensurface.h
@@ -36,6 +36,7 @@ class AlienSurface : public QObject,  public QWaylandSurfaceInterface, public Qt
     void alien_surface_ack_configure(Resource *resource, uint32_t serial) Q_DECL_OVERRIDE;
     void alien_surface_request_state(Resource *resource, wl_array *states, uint32_t serial) Q_DECL_OVERRIDE;
     void alien_surface_set_minimized(Resource *resource) Q_DECL_OVERRIDE;
+    void alien_surface_snapshot(Resource *resource) Q_DECL_OVERRIDE;
 
 private:
     void configure(bool hasBuffer);