#include "x11helper.h"

#include <X11/Xlib.h>

X11Helper::X11Helper(QObject *parent) : QObject(parent), disp(XOpenDisplay(nullptr)) {

}

X11Helper::~X11Helper() {
	XCloseDisplay(this->disp);
}

Window X11Helper::findWindow(const QString& name) {
	return searchWindows(DefaultRootWindow(disp), name);
}

Window X11Helper::searchWindows(Window top, const QString& search) {
	{
		char* window_name;
		if (XFetchName(disp, top, &window_name)) {
			QString winName(window_name);
			XFree(window_name);
			if (search == winName) {
				return top; // dont look for kids
			}
		}
	}

	Window* children = nullptr;
	Window dummy;
	unsigned int nchildren;
	if (!XQueryTree(disp, top, &dummy, &dummy, &children, &nchildren)) {
		return 0;
	}

	for (unsigned int i = 0; i < nchildren; i++) {
		Window res = searchWindows(children[i], search);
		if(res != 0) {
			XFree((char*) children);
			return res;
		}
	}
	if (children) {
		XFree((char*) children);
	}

	return 0;
}

void X11Helper::map(Window win) {
	XMapRaised(disp, win);
}

void X11Helper::unmap(Window win) {
	XUnmapWindow(disp, win);
}

void X11Helper::setMap(Window win, bool b) {
	if(b) {
		map(win);
	} else {
		unmap(win);
	}
}