New upstream version 0.16.2+dfsg1

UI/frontend-plugins/frontend-tools/auto-scene-switcher-win.cpp

@@ -0,0 +1,69 @@
+#include <windows.h>
+#include <util/platform.h>
+#include "auto-scene-switcher.hpp"
+
+using namespace std;
+
+static bool GetWindowTitle(HWND window, string &title)
+{
+	size_t len = (size_t)GetWindowTextLengthW(window);
+	wstring wtitle;
+
+	wtitle.resize(len);
+	if (!GetWindowTextW(window, &wtitle[0], (int)len + 1))
+		return false;
+
+	len = os_wcs_to_utf8(wtitle.c_str(), 0, nullptr, 0);
+	title.resize(len);
+	os_wcs_to_utf8(wtitle.c_str(), 0, &title[0], len + 1);
+	return true;
+}
+
+static bool WindowValid(HWND window)
+{
+	LONG_PTR styles, ex_styles;
+	RECT rect;
+	DWORD id;
+
+	if (!IsWindowVisible(window))
+		return false;
+	GetWindowThreadProcessId(window, &id);
+	if (id == GetCurrentProcessId())
+		return false;
+
+	GetClientRect(window, &rect);
+	styles    = GetWindowLongPtr(window, GWL_STYLE);
+	ex_styles = GetWindowLongPtr(window, GWL_EXSTYLE);
+
+	if (ex_styles & WS_EX_TOOLWINDOW)
+		return false;
+	if (styles & WS_CHILD)
+		return false;
+
+	return true;
+}
+
+void GetWindowList(vector<string> &windows)
+{
+	HWND window = GetWindow(GetDesktopWindow(), GW_CHILD);
+
+	while (window) {
+		string title;
+		if (WindowValid(window) && GetWindowTitle(window, title))
+			windows.emplace_back(title);
+		window = GetNextWindow(window, GW_HWNDNEXT);
+	}
+}
+
+void GetCurrentWindowTitle(string &title)
+{
+	HWND window = GetForegroundWindow();
+	DWORD id;
+
+	GetWindowThreadProcessId(window, &id);
+	if (id == GetCurrentProcessId()) {
+		title = "";
+		return;
+	}
+	GetWindowTitle(window, title);
+}