DecoratedWindow: change the type of the maximize button when window state changes

(bzr r4163.3.3)

1 files changed, 13 insertions, 3 deletions

diff --git a/decorations/DecoratedWindow.cpp b/decorations/DecoratedWindow.cpp
index 8ac9197d2..d15748559 100644
--- a/decorations/DecoratedWindow.cpp
+++ b/decorations/DecoratedWindow.cpp
@@ -118,9 +118,19 @@ void Window::Impl::Update()
 else
 Undecorate();
 
- auto const& maximize_button = maximize_button_.lock();
- if (maximize_button)
- maximize_button->UpdateTexture();
+ if (maximize_button_)
+ {
+ auto const& maximize_button = maximize_button_.lock();
+
+ if (win_->state() & (CompWindowStateMaximizedVertMask|CompWindowStateMaximizedHorzMask))
+ {
+ maximize_button->type = WindowButtonType::UNMAXIMIZE;
+ }
+ else
+ {
+ maximize_button->type = WindowButtonType::MAXIMIZE;
+ }
+ }
 
 last_mwm_decor_ = win_->mwmDecor();
 last_actions_ = win_->actions();