shithub: mycel

Download patch

ref: dad0d6351deb0de70f34de84b3bd7f50d614e45c
parent: c2fc12eab27c5c35c704b71a1330280065c3eecc
author: Philip Silva <philip.silva@protonmail.com>
date: Sat May 8 15:42:04 EDT 2021 

devjs

diff: cannot open b/cmd/devjs//null: file does not exist: 'b/cmd/devjs//null' diff: cannot open b/domino/jsfcall//null: file does not exist: 'b/domino/jsfcall//null' 
--- /dev/null
+++ b/cmd/devjs/main.go
@@ -1,0 +1,133 @@
+// js package as separate program (very wip)
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/psilva261/opossum/domino"
+	"github.com/psilva261/opossum/domino/jsfcall"
+	"github.com/psilva261/opossum/logger"
+	"io"
+	"os"
+	"strings"
+)
+
+var (
+	d *domino.Domino
+	log *logger.Logger
+)
+
+func init() {
+	f := false
+	t := true
+	domino.DebugDumpJS = &t
+	logger.Quiet = &f
+	logger.Init()
+	log = &logger.Logger{Debug: true}
+	domino.SetLogger(log)
+}
+
+func usage() {
+	log.Printf("usage: devjs -h htmlfile jsfile1 [jsfile2 [..]]")
+	os.Exit(1)
+}
+
+func Main(r io.Reader, w io.Writer, htm string, js []string) error {
+	msg := jsfcall.Msg{}
+	dec := json.NewDecoder(r)
+	enc := json.NewEncoder(w)
+
+	for {
+		err := dec.Decode(&msg)
+		if err == io.EOF {
+			if d != nil {
+				// TODO: probably that's not even necessary
+				d.Stop()
+			}
+			break
+		}
+		if err != nil {
+			return fmt.Errorf("decode: %v", err)
+		}
+
+		switch msg.Type {
+		case jsfcall.Tinit:
+			log.Printf("received Tinit")
+			log.Printf("htm=%v", htm)
+			d = domino.NewDomino(htm, nil, nil)
+			d.Start()
+			initialized := false
+			for _, s := range js {
+				if _, err := d.Exec/*6*/(s, !initialized); err != nil {
+					if strings.Contains(err.Error(), "halt at") {
+						return fmt.Errorf("execution halted: %w", err)
+					}
+					log.Printf("exec <script>: %v", err)
+				}
+				initialized = true
+			}
+			if err := d.CloseDoc(); err != nil {
+				return fmt.Errorf("close doc: %w", err)
+			}
+			resHtm, changed, err := d.TrackChanges()
+			if err == nil {
+				log.Printf("processJS: changed = %v", changed)
+			} else {
+				return fmt.Errorf("track changes: %w", err)
+			}
+			msg := &jsfcall.Msg{
+				Type: jsfcall.Rinit,
+				Html: resHtm,
+			}
+			if err := enc.Encode(&msg); err != nil {
+				return fmt.Errorf("encode: %v", err)
+			}
+		default:
+			return fmt.Errorf("unhandled msg: %+v", msg)
+		}
+	}
+
+	return nil
+}
+
+func main() {
+	args := os.Args[1:]
+	if len(args) == 0 {
+		usage()
+	}
+
+	htmlfile := ""
+	jsfiles := make([]string, 0, len(args))
+
+	for len(args) > 0 {
+		switch args[0] {
+		case "-h":
+			htmlfile, args = args[1], args[2:]
+		default:
+			var jsfile string
+			jsfile, args = args[0], args[1:]
+			jsfiles = append(jsfiles, jsfile)
+		}
+	}
+
+	htm := ""
+	js := make([]string, 0, len(jsfiles))
+	if htmlfile != "" {
+		b, err := os.ReadFile(htmlfile)
+		if err != nil {
+			log.Fatalf(err.Error())
+		}
+		htm = string(b)
+	}
+	for _, jsfile := range jsfiles {
+		b, err := os.ReadFile(jsfile)
+		if err != nil {
+			log.Fatalf(err.Error())
+		}
+		js = append(js, string(b))
+	}
+
+	if err := Main(os.Stdin, os.Stdout, htm, js); err != nil {
+		log.Fatalf("Main: %+v", err)
+	}
+}
--- /dev/null
+++ b/domino/jsfcall/jsfcall.go
@@ -1,0 +1,19 @@
+package jsfcall
+
+const (
+	_ = iota
+	Rerror
+	Tinit
+	Rinit
+	Tclick
+	Rclick
+	Tquery
+	Rquery
+)
+
+type Msg struct {
+	Type    uint8
+	Error   string
+	Changed bool
+	Html  string
+}