add xevent.

server/internal/desktop/xevent/xevent.go

@@ -0,0 +1,84 @@
+package xevent
+
+/*
+#cgo LDFLAGS: -lX11 -lXfixes
+
+#include "xevent.h"
+*/
+import "C"
+
+import (
+	"strings"
+	"time"
+	"unsafe"
+
+	"github.com/kataras/go-events"
+)
+
+var Emmiter events.EventEmmiter
+var file_chooser_dialog_window uint32 = 0
+
+func init() {
+	Emmiter = events.New()
+}
+
+func EventLoop(display string) {
+	displayUnsafe := C.CString(display)
+	defer C.free(unsafe.Pointer(displayUnsafe))
+
+	C.XEventLoop(displayUnsafe)
+}
+
+//export goXEventCursorChanged
+func goXEventCursorChanged(event C.XFixesCursorNotifyEvent) {
+	Emmiter.Emit("cursor-changed", uint64(event.cursor_serial))
+}
+
+//export goXEventClipboardUpdated
+func goXEventClipboardUpdated() {
+	Emmiter.Emit("clipboard-updated")
+}
+
+//export goXEventConfigureNotify
+func goXEventConfigureNotify(display *C.Display, window C.Window, name *C.char, role *C.char) {
+	if C.GoString(role) != "GtkFileChooserDialog" {
+		return
+	}
+
+	// TODO: Refactor. Right now processing of this dialog relies on identifying
+	// via its name. When that changes to role, this condition should be removed.
+	if !strings.HasPrefix(C.GoString(name), "Open File") {
+		return
+	}
+
+	C.XFileChooserHide(display, window)
+
+	// Because first dialog is not put properly to background
+	time.Sleep(10 * time.Millisecond)
+	C.XFileChooserHide(display, window)
+
+	if file_chooser_dialog_window == 0 {
+		file_chooser_dialog_window = uint32(window)
+		Emmiter.Emit("file-chooser-dialog-opened")
+	}
+}
+
+//export goXEventUnmapNotify
+func goXEventUnmapNotify(window C.Window) {
+	if uint32(window) != file_chooser_dialog_window {
+		return
+	}
+
+	file_chooser_dialog_window = 0
+	Emmiter.Emit("file-chooser-dialog-closed")
+}
+
+//export goXEventError
+func goXEventError(event *C.XErrorEvent, message *C.char) {
+	Emmiter.Emit("event-error", uint8(event.error_code), C.GoString(message), uint8(event.request_code), uint8(event.minor_code))
+}
+
+//export goXEventActive
+func goXEventActive() C.int {
+	return C.int(1)
+}