added Linux support / some more cleanup

CMakeLists.txt

@@ -5,11 +5,11 @@ if(APPLE)
 	include_directories(${COCOA})
 endif()
 
-#if(UNIX)
-#	find_package(X11 REQUIRED)
-#	link_libraries(${X11_LIBRARIES})
-#	include_directories(${X11_INCLUDE_DIR})
-#endif()
+if(UNIX)
+	find_package(X11 REQUIRED)
+	link_libraries(${X11_LIBRARIES})
+	include_directories(${X11_INCLUDE_DIR})
+endif()
 
 set(advanced-scene-switcher_HEADERS
 	${advanced-scene-switcher_HEADERS}
@@ -50,9 +50,11 @@ elseif(APPLE)
 
 	set(advanced-scene-switcher_PLATFORM_LIBS
 		${COCOA})
-#else()
-#	set(advanced-scene-switcher_PLATFORM_SOURCES
-#		advanced-scene-switcher-nix.cpp)
+else()
+	set(advanced-scene-switcher_PLATFORM_SOURCES
+		advanced-scene-switcher-nix.cpp)
+	set(advanced-scene-switcher_PLATFORM_LIBS
+		Xss)
 endif()
 
 qt5_wrap_ui(advanced-scene-switcher_UI_HEADERS

advanced-scene-switcher-nix.cpp

@@ -0,0 +1,322 @@
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/scrnsaver.h>
+#undef Bool
+#undef CursorShape
+#undef Expose
+#undef KeyPress
+#undef KeyRelease
+#undef FocusIn
+#undef FocusOut
+#undef FontChange
+#undef None
+#undef Status
+#undef Unsorted
+#include <util/platform.h>
+#include "advanced-scene-switcher.hpp"
+
+using namespace std;
+
+static Display* xdisplay = 0;
+
+Display *disp()
+{
+	if (!xdisplay)
+		xdisplay = XOpenDisplay(NULL);
+
+	return xdisplay;
+}
+
+void cleanupDisplay()
+{
+	if (!xdisplay)
+		return;
+
+	XCloseDisplay(xdisplay);
+	xdisplay = 0;
+}
+
+static bool ewmhIsSupported()
+{
+	Display *display = disp();
+	Atom netSupportingWmCheck = XInternAtom(display,
+			"_NET_SUPPORTING_WM_CHECK", true);
+	Atom actualType;
+	int format = 0;
+	unsigned long num = 0, bytes = 0;
+	unsigned char *data = NULL;
+	Window ewmh_window = 0;
+
+	int status = XGetWindowProperty(
+			display,
+			DefaultRootWindow(display),
+			netSupportingWmCheck,
+			0L,
+			1L,
+			false,
+			XA_WINDOW,
+			&actualType,
+			&format,
+			&num,
+			&bytes,
+			&data);
+
+	if (status == Success) {
+		if (num > 0) {
+			ewmh_window = ((Window*)data)[0];
+		}
+		if (data) {
+			XFree(data);
+			data = NULL;
+		}
+	}
+
+	if (ewmh_window) {
+		status = XGetWindowProperty(
+				display,
+				ewmh_window,
+				netSupportingWmCheck,
+				0L,
+				1L,
+				false,
+				XA_WINDOW,
+				&actualType,
+				&format,
+				&num,
+				&bytes,
+				&data);
+		if (status != Success || num == 0 ||
+				ewmh_window != ((Window*)data)[0]) {
+			ewmh_window = 0;
+		}
+		if (status == Success && data) {
+			XFree(data);
+		}
+	}
+
+	return ewmh_window != 0;
+}
+
+static std::vector<Window> getTopLevelWindows()
+{
+	std::vector<Window> res;
+
+	res.resize(0);
+
+	if (!ewmhIsSupported()) {
+		return res;
+	}
+
+	Atom netClList = XInternAtom(disp(), "_NET_CLIENT_LIST", true);
+	Atom actualType;
+	int format;
+	unsigned long num, bytes;
+	Window* data = 0;
+
+	for (int i = 0; i < ScreenCount(disp()); ++i) {
+		Window rootWin = RootWindow(disp(), i);
+
+		int status = XGetWindowProperty(
+				disp(),
+				rootWin,
+				netClList,
+				0L,
+				~0L,
+				false,
+				AnyPropertyType,
+				&actualType,
+				&format,
+				&num,
+				&bytes,
+				(uint8_t**)&data);
+
+		if (status != Success) {
+			continue;
+		}
+
+		for (unsigned long i = 0; i < num; ++i)
+			res.emplace_back(data[i]);
+
+		XFree(data);
+	}
+
+	return res;
+}
+
+static std::string GetWindowTitle(size_t i)
+{
+	Window w = getTopLevelWindows().at(i);
+	std::string windowTitle;
+	char* name;
+
+	int status = XFetchName(disp(), w, &name);
+	if (status >= Success && name != nullptr)
+	{
+		std::string str(name);
+		windowTitle = str;
+	}
+
+	XFree(name);
+
+	return windowTitle;
+}
+
+void GetWindowList(vector<string> &windows)
+{
+	windows.resize(0);
+
+	for (size_t i = 0; i < getTopLevelWindows().size(); ++i){
+		if (GetWindowTitle(i) != "")
+			windows.emplace_back(GetWindowTitle(i));
+	}
+}
+
+void GetCurrentWindowTitle(string &title)
+{
+	if (!ewmhIsSupported()) {
+		return;
+	}
+
+	Atom active = XInternAtom(disp(), "_NET_ACTIVE_WINDOW", true);
+	Atom actualType;
+	int format;
+	unsigned long num, bytes;
+	Window* data = 0;
+	char* name;
+
+	Window rootWin = RootWindow(disp(), 0);
+
+	XGetWindowProperty(
+			disp(),
+			rootWin,
+			active,
+			0L,
+			~0L,
+			false,
+			AnyPropertyType,
+			&actualType,
+			&format,
+			&num,
+			&bytes,
+			(uint8_t**)&data);
+
+	int status = XFetchName(disp(), data[0], &name);
+
+	if (status >= Success && name != nullptr) {
+		std::string str(name);
+		title = str;
+	}
+
+	XFree(name);
+}
+
+pair<int, int> getCursorPos()
+{
+	pair<int, int> pos(0, 0);
+	Display *dpy;
+	Window root;
+	Window ret_root;
+	Window ret_child;
+	int root_x;
+	int root_y;
+	int win_x;
+	int win_y;
+	unsigned int mask;
+
+	dpy = XOpenDisplay(NULL);
+	root = XDefaultRootWindow(dpy);
+
+	if(XQueryPointer(dpy, root, &ret_root, &ret_child, &root_x, &root_y,
+					 &win_x, &win_y, &mask))
+	{   
+		pos = pair<int, int> (root_x,root_y);
+	}
+	return pos;
+}
+
+bool isFullscreen()
+{
+	if (!ewmhIsSupported()) {
+		return false;
+	}
+
+	Atom active = XInternAtom(disp(), "_NET_ACTIVE_WINDOW", true);
+	Atom actualType;
+	int format;
+	unsigned long num, bytes;
+	Window* data = 0;
+
+	Window rootWin = RootWindow(disp(), 0);
+	XGetWindowProperty(
+			disp(),
+			rootWin,
+			active,
+			0L,
+			~0L,
+			false,
+			AnyPropertyType,
+			&actualType,
+			&format,
+			&num,
+			&bytes,
+			(uint8_t**)&data);
+
+
+	XWindowAttributes window_attributes_return;
+	XWindowAttributes screen_attributes_return;
+
+	XGetWindowAttributes(disp(), rootWin, &screen_attributes_return);
+	XGetWindowAttributes(disp(), data[0], &window_attributes_return);
+
+	//menu bar is always 24 pixels in height
+	return (window_attributes_return.width >= screen_attributes_return.width &&
+	window_attributes_return.height + 24 >= screen_attributes_return.height) ? true : false; 
+}
+
+//exe switch is not quite what is expected but it works for now
+void GetProcessList(QStringList &processes) 
+{
+	processes.clear();
+	for (size_t i = 0; i < getTopLevelWindows().size(); ++i){
+		string s = GetWindowTitle(i);
+		if (s != "")
+			processes << QString::fromStdString(s);
+	}
+}
+
+bool isInFocus(const QString &exeToCheck) 
+{
+	string curWindow;
+	GetCurrentWindowTitle(curWindow);
+
+        return (QString::compare(
+		QString::fromStdString(curWindow), 
+		exeToCheck, 
+		Qt::CaseInsensitive) == 0) ? true : false;
+}
+
+
+int secondsSinceLastInput()
+{
+        time_t idle_time;
+        static XScreenSaverInfo *mit_info;
+        Display *display;
+        int screen;
+
+        mit_info = XScreenSaverAllocInfo();
+
+        if((display=XOpenDisplay(NULL)) == NULL) 
+	{ 
+		return(-1); 
+	}
+        screen = DefaultScreen(display);
+        XScreenSaverQueryInfo(display, RootWindow(display,screen), mit_info);
+        idle_time = (mit_info->idle) / 1000;
+        XFree(mit_info);
+        XCloseDisplay(display);
+
+        return idle_time;
+}
+
+

scene-transitions.cpp

@@ -1,18 +1,4 @@
 #include "advanced-scene-switcher.hpp"
-#if 1
-#include <Windows.h>
-std::wstring s2ws(const std::string& s)
-{
-	int len;
-	int slength = (int)s.length() + 1;
-	len = MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, 0, 0);
-	wchar_t* buf = new wchar_t[len];
-	MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, buf, len);
-	std::wstring r(buf);
-	delete[] buf;
-	return r;
-}
-#endif
 
 void SceneSwitcher::on_transitionsAdd_clicked()
 {

utility.hpp

@@ -1,6 +1,6 @@
 #pragma once
 #include <obs.hpp>
-#include <qstring>
+#include <QString>
 #include <obs-frontend-api.h>
 #include "switcher-data-structs.hpp"
 using namespace std;