[client] ds: add new minimize function to the ds interface

This change is to allow the application to minimize the window on focus
loss if the user's preferences are configured to do this.

client/include/interface/displayserver.h

@@ -69,7 +69,6 @@ typedef struct LG_DSInitParams
   bool resizable;
   bool borderless;
   bool maximize;
-  bool minimizeOnFocusLoss;
 
   // if true the renderer requires an OpenGL context
   bool opengl;
@@ -158,10 +157,11 @@ struct LG_DisplayServerOps
   /* wait for the specified time without blocking UI processing/event loops */
   void (*wait)(unsigned int time);
 
-  /* get/set the window dimensions */
+  /* get/set the window dimensions & state */
   void (*setWindowSize)(int x, int y);
   bool (*getFullscreen)(void);
   void (*setFullscreen)(bool fs);
+  void (*minimize)(void);
 
   /* clipboard support, optional, if not supported set to NULL */
   bool (*cbInit)(void);
@@ -213,6 +213,7 @@ struct LG_DisplayServerOps
   assert((x)->wait               ); \
   assert((x)->setWindowSize      ); \
   assert((x)->setFullscreen      ); \
-  assert((x)->getFullscreen      );
+  assert((x)->getFullscreen      ); \
+  assert((x)->minimize           );
 
 #endif

client/src/app.c

@@ -67,7 +67,11 @@ void app_handleFocusEvent(bool focused)
 {
   g_state.focused = focused;
   if (!core_inputEnabled())
+  {
+    if (!focused && g_params.minimizeOnFocusLoss)
+      g_state.ds->minimize();
     return;
+  }
 
   if (!focused)
   {
@@ -81,6 +85,9 @@ void app_handleFocusEvent(bool focused)
 
     if (!g_params.showCursorDot)
       g_state.ds->showPointer(false);
+
+    if (g_params.minimizeOnFocusLoss)
+      g_state.ds->minimize();
   }
 
   g_cursor.realign = true;

client/src/main.c

@@ -765,7 +765,6 @@ static int lg_run(void)
     .resizable           = g_params.allowResize,
     .borderless          = g_params.borderless,
     .maximize            = g_params.maximize,
-    .minimizeOnFocusLoss = g_params.minimizeOnFocusLoss,
     .opengl              = needsOpenGL
   };