From 64ba396fa7688395d5b0de121ff86636e9592f3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Fri, 17 Oct 2008 01:31:44 +0000
Subject: [PATCH] * When changing the workspace of a window, it's workspace
 position will now be   set to its current position if that is the only
 workspace it's in. * This fixes missing windows on other workspaces in the
 Workspaces app after   boot, ie. before you had visited that workspace.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28204 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/servers/app/Desktop.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/servers/app/Desktop.cpp b/src/servers/app/Desktop.cpp
index ab6420e0f2..794cf7cb1a 100644
--- a/src/servers/app/Desktop.cpp
+++ b/src/servers/app/Desktop.cpp
@@ -2013,6 +2013,9 @@ Desktop::_ChangeWindowWorkspaces(Window* window, uint32 oldWorkspaces,
 
 	LockAllWindows();
 
+	// NOTE: we bypass the anchor-mechanism by intention when switching
+	// the workspace programmatically.
+
 	for (int32 i = 0; i < kMaxWorkspaces; i++) {
 		if (workspace_in_workspaces(i, oldWorkspaces)) {
 			// window is on this workspace, is it anymore?
@@ -2048,6 +2051,21 @@ Desktop::_ChangeWindowWorkspaces(Window* window, uint32 oldWorkspaces,
 		}
 	}
 
+	// If the window is visible only on one workspace, we set it's current
+	// position in that workspace (so that WorkspacesView will find us).
+	int32 firstWorkspace = -1;
+	for (int32 i = 0; i < kMaxWorkspaces; i++) {
+		if ((newWorkspaces & (1L << i)) != 0) {
+			if (firstWorkspace != -1) {
+				firstWorkspace = -1;
+				break;
+			}
+			firstWorkspace = i;
+		}
+	}
+	if (firstWorkspace >= 0)
+		window->Anchor(firstWorkspace).position = window->Frame().LeftTop();
+
 	// take care about modals and floating windows
 	_UpdateSubsetWorkspaces(window);