Best Rod code snippet using rod.evalHelper
dev_helpers.go
Source: dev_helpers.go
...83 time.Sleep(b.slowMotion)84}85// ExposeHelpers helper functions to page's js context so that we can use the Devtools' console to debug them.86func (p *Page) ExposeHelpers(list ...*js.Function) {87 p.MustEvaluate(evalHelper(&js.Function{88 Name: "_" + utils.RandString(8), // use a random name so it won't hit the cache89 Definition: "() => { window.rod = functions }",90 Dependencies: list,91 }))92}93// Overlay a rectangle on the main frame with specified message94func (p *Page) Overlay(left, top, width, height float64, msg string) (remove func()) {95 id := utils.RandString(8)96 _, _ = p.root.Evaluate(evalHelper(js.Overlay,97 id,98 left,99 top,100 width,101 height,102 msg,103 ).ByPromise())104 remove = func() {105 _, _ = p.root.Evaluate(evalHelper(js.RemoveOverlay, id))106 }107 return108}109func (p *Page) tryTrace(typ TraceType, msg ...interface{}) func() {110 if !p.browser.trace {111 return func() {}112 }113 msg = append([]interface{}{typ}, msg...)114 msg = append(msg, p)115 p.browser.logger.Println(msg...)116 return p.Overlay(0, 0, 500, 0, fmt.Sprint(msg))117}118func (p *Page) tryTraceQuery(opts *EvalOptions) func() {119 if !p.browser.trace {120 return func() {}121 }122 p.browser.logger.Println(TraceTypeQuery, opts, p)123 msg := fmt.Sprintf("<code>%s</code>", html.EscapeString(opts.String()))124 return p.Overlay(0, 0, 500, 0, msg)125}126func (p *Page) tryTraceReq(includes, excludes []string) func(map[proto.NetworkRequestID]string) {127 if !p.browser.trace {128 return func(map[proto.NetworkRequestID]string) {}129 }130 msg := map[string][]string{131 "includes": includes,132 "excludes": excludes,133 }134 p.browser.logger.Println(TraceTypeWaitRequestsIdle, msg, p)135 cleanup := p.Overlay(0, 0, 500, 0, utils.MustToJSON(msg))136 ch := make(chan map[string]string)137 update := func(list map[proto.NetworkRequestID]string) {138 clone := map[string]string{}139 for k, v := range list {140 clone[string(k)] = v141 }142 ch <- clone143 }144 go func() {145 var waitlist map[string]string146 t := time.NewTicker(time.Second)147 for {148 select {149 case <-p.ctx.Done():150 t.Stop()151 cleanup()152 return153 case waitlist = <-ch:154 case <-t.C:155 p.browser.logger.Println(TraceTypeWaitRequests, p, waitlist)156 }157 }158 }()159 return update160}161// Overlay msg on the element162func (el *Element) Overlay(msg string) (removeOverlay func()) {163 id := utils.RandString(8)164 _, _ = el.Evaluate(evalHelper(js.ElementOverlay,165 id,166 msg,167 ).ByPromise())168 removeOverlay = func() {169 _, _ = el.Evaluate(evalHelper(js.RemoveOverlay, id))170 }171 return172}173func (el *Element) tryTrace(typ TraceType, msg ...interface{}) func() {174 if !el.page.browser.trace {175 return func() {}176 }177 msg = append([]interface{}{typ}, msg...)178 msg = append(msg, el)179 el.page.browser.logger.Println(msg...)180 return el.Overlay(fmt.Sprint(msg))181}182func (m *Mouse) initMouseTracer() {183 _, _ = m.page.Evaluate(evalHelper(js.InitMouseTracer, m.id, assets.MousePointer).ByPromise())184}185func (m *Mouse) updateMouseTracer() bool {186 res, err := m.page.Evaluate(evalHelper(js.UpdateMouseTracer, m.id, m.x, m.y))187 if err != nil {188 return true189 }190 return res.Value.Bool()191}192// Serve a port, if host is empty a random port will be used.193func serve(host string) (string, *http.ServeMux, func() error) {194 if host == "" {195 host = "127.0.0.1:0"196 }197 mux := http.NewServeMux()198 srv := &http.Server{Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {199 defer func() {200 if err := recover(); err != nil {...
evalHelper
Using AI Code Generation
1import (2func main() {3 browser := rod.New().Connect()4 page.WaitLoad()5 value, err := page.Eval(`document.querySelector("input[name=q]").value`)6 if err != nil {7 panic(err)8 }9 fmt.Println(value)10}11import (12func main() {13 browser := rod.New().Connect()14 page.WaitLoad()15 value, err := page.Eval(`document.querySelector("input[name=q]").value`)16 if err != nil {17 panic(err)18 }19 fmt.Println(value)20}21import (22func main() {23 browser := rod.New().Connect()24 page.WaitLoad()25 value, err := page.Eval(`document.querySelector("input[name=q]").value`)26 if err != nil {27 panic(err)28 }29 fmt.Println(value)30}31import (32func main() {33 browser := rod.New().Connect()34 page.WaitLoad()35 value, err := page.Eval(`document
evalHelper
Using AI Code Generation
1import (2func main() {3 r := rod.New().Connect()4 page := r.Page("")5 result, _ := page.EvalObject(`document.querySelector("h1").innerText`)6 fmt.Println(result.Value)7}
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