Add SDL restore window event which is required by some applications (such as NewPipe) when restoring minimized window. This ensures that the application window contents will be rendered after restoration.

anbox_files/PKGBUILD

@@ -27,12 +27,13 @@ source=("git+https://github.com/anbox/anbox.git"
     'patch_cm-privileged-warn.patch'
     'patch_bytesize-to-bytesizelong.patch'
     'patch_remove-unknown-opt.patch'
+    'patch_window-restored.patch'
 )
 sha256sums=('SKIP'
             'SKIP'
-            'fc86c104381c3a6dd442ca7c60f4172d70a13528252475f592fced4e4722951a'
+            '08b50aa85859715fdb6835a26c6e6efceab0ef8746fd5053a0e04fc0cb742c7f'
             'aefae0f50ccaa66b291bb4636f06103f25deee8d6f64e3e6b9e414a5a6cec2a0'
-            '210eb93342228168f7bb632c8b93d9bfda6f53f62459a6b74987fa1e17530475'
+            'ff4b449950916925c6d3bdfa55a81a0a944deaeb020de9bffc5f3ec923fdf396'
             '3e07dc524a827c1651857cce28a06c1565bc5188101c140ed213bbafedc5abff'
             '7332d09865be553a259a53819cebddd21f661c7a251d78c2f46acd75c66676b6'
             '2186a2a1c445b0eef40b96b508a3b158931bad2677fd4adbbe5c3a9db05553df'
@@ -43,7 +44,8 @@ sha256sums=('SKIP'
             '5d6184f4e2f8b680a176fe9125bf7e1d34bfdc0f3a114ade94bb1d9269cf9c79'
             '7430e889f1a882b7393896baaaf1a22650d770ed810182def364fde9d8682223'
             'bf751d44500c3689a3fd56c757d59632441bee78d1857bef84319f38da1a33ba'
-            'b96eedc64972c671a57052c53760b60aac00e95c80a7020818582957d247558f')
+            'b96eedc64972c671a57052c53760b60aac00e95c80a7020818582957d247558f'
+            '926e13e113baf307cc1556e11e0b621e5fae455f9a02eb3cc0a75c6584dd27a2')
 
 pkgver() {
   cd "$srcdir/$_pkgname"

anbox_files/patch_window-restored.patch

@@ -0,0 +1,53 @@
+--- a/src/anbox/platform/sdl/platform.cpp	2020-06-30 13:15:49.448320901 +0300
++++ b/src/anbox/platform/sdl/platform.cpp	2020-06-30 13:39:02.464989017 +0300
+@@ -446,6 +446,17 @@ void Platform::window_wants_focus(const
+   }
+ }
+ 
++void Platform::window_restored(const Window::Id &id) {
++  auto w = windows_.find(id);
++  if (w == windows_.end()) return;
++
++  if (auto window = w->second.lock()) {
++    auto new_frame = window->frame();
++    window->update_frame(new_frame);
++    window_manager_->resize_task(window->task(), new_frame, 3);
++  }
++}
++
+ void Platform::window_moved(const Window::Id &id, const std::int32_t &x,
+                                   const std::int32_t &y) {
+   auto w = windows_.find(id);
+--- a/src/anbox/platform/sdl/platform.h	2020-06-30 13:16:06.144987589 +0300
++++ b/src/anbox/platform/sdl/platform.h	2020-06-30 13:39:35.294989051 +0300
+@@ -54,6 +54,7 @@ class Platform : public std::enable_shar
+ 
+   void window_deleted(const Window::Id &id) override;
+   void window_wants_focus(const Window::Id &id) override;
++  void window_restored(const Window::Id &id) override;
+   void window_moved(const Window::Id &id, const std::int32_t &x,
+                     const std::int32_t &y) override;
+   void window_resized(const Window::Id &id, const std::int32_t &width,
+--- a/src/anbox/platform/sdl/window.cpp	2020-06-30 12:25:01.078318019 +0300
++++ b/src/anbox/platform/sdl/window.cpp	2020-06-30 13:40:04.924989082 +0300
+@@ -193,6 +193,10 @@ void Window::process_event(const SDL_Eve
+       break;
+     case SDL_WINDOWEVENT_FOCUS_LOST:
+       break;
++    case SDL_WINDOWEVENT_RESTORED:
++      if (observer_)
++        observer_->window_restored(id_);
++      break;
+     // Not need to listen for SDL_WINDOWEVENT_RESIZED here as the
+     // SDL_WINDOWEVENT_SIZE_CHANGED is always sent.
+     case SDL_WINDOWEVENT_SIZE_CHANGED:
+--- a/src/anbox/platform/sdl/window.h	2020-06-30 13:14:34.174987490 +0300
++++ b/src/anbox/platform/sdl/window.h	2020-06-30 13:40:24.711655769 +0300
+@@ -41,6 +41,7 @@ class Window : public std::enable_shared
+     virtual ~Observer();
+     virtual void window_deleted(const Id &id) = 0;
+     virtual void window_wants_focus(const Id &id) = 0;
++    virtual void window_restored(const Id &id) = 0;
+     virtual void window_moved(const Id &id, const std::int32_t &x,
+                               const std::int32_t &y) = 0;
+     virtual void window_resized(const Id &id, const std::int32_t &x,