Commit 57685177 authored by Edgar Chen's avatar Edgar Chen
Browse files

Bug 1823284 - Avoid waiting for window resizing if it is already at expected dimensions; r=smaug 

Depends on D175384

Differential Revision: https://phabricator.services.mozilla.com/D175213
parent 9e4fd6e6

xpfe/appshell/AppWindow.cpp

+16 −1
Original line number Diff line number Diff line
@@ -2946,7 +2946,22 @@ void AppWindow::FullscreenWillChange(bool aInFullscreen) { 
    }

  }

  MOZ_ASSERT(mFullscreenChangeState == FullscreenChangeState::NotChanging);

  mFullscreenChangeState = FullscreenChangeState::WillChange;



  int32_t winWidth = 0;

  int32_t winHeight = 0;

  GetSize(&winWidth, &winHeight);



  int32_t screenWidth = 0;

  int32_t screenHeight = 0;

  GetAvailScreenSize(&screenWidth, &screenHeight);



  // Check if the window is already at the expected dimensions. If it is, set

  // the fullscreen change state to WidgetResized to avoid waiting for a resize

  // event.

  mFullscreenChangeState =

      (aInFullscreen == (winWidth == screenWidth && winHeight == screenHeight))

          ? FullscreenChangeState::WidgetResized

          : FullscreenChangeState::WillChange;

}



void AppWindow::FullscreenChanged(bool aInFullscreen) {