Refactor event binding logic in SUI core

sui/core/build.go

@@ -170,6 +170,9 @@ func (page *Page) BuildAsComponent(sel *goquery.Selection, ctx *BuildContext, op
 		return "", err
 	}
 
+	// Bind the component events
+	page.BindEvent(ctx, doc.Selection, component)
+
 	body := doc.Selection.Find("body")
 
 	if body.Children().Length() == 0 {
@@ -553,6 +556,11 @@ func (page *Page) BuildScripts(ctx *BuildContext, option *BuildOption, component
 		component = ComponentName(page.Route, option.ScriptMinify)
 	}
 
+	arguments := ""
+	if !ispage {
+		arguments = "arguments[0]"
+	}
+
 	scripts := []ScriptNode{}
 	if page.Codes.JS.Code == "" && page.Codes.TS.Code == "" {
 		return scripts, nil
@@ -566,17 +574,18 @@ func (page *Page) BuildScripts(ctx *BuildContext, option *BuildOption, component
 	var imports []string = nil
 	var source []byte = nil
 	if page.Codes.TS.Code != "" {
-		source, imports, err = page.CompileTS([]byte(page.Codes.TS.Code), option.ScriptMinify)
+		code := fmt.Sprintf("this.store = new __sui_store(%s);\n%s", arguments, page.Codes.TS.Code)
+		source, imports, err = page.CompileTS([]byte(code), option.ScriptMinify)
 		if err != nil {
 			return nil, err
 		}
 
 	} else if page.Codes.JS.Code != "" {
-		source, imports, err = page.CompileJS([]byte(page.Codes.JS.Code), option.ScriptMinify)
+		code := fmt.Sprintf("this.store = new __sui_store(%s);\n%s", arguments, page.Codes.JS.Code)
+		source, imports, err = page.CompileJS([]byte(code), option.ScriptMinify)
 		if err != nil {
 			return nil, err
 		}
-
 	}
 
 	// Add the script

sui/core/compile.go

@@ -58,6 +58,9 @@ func (page *Page) Compile(ctx *BuildContext, option *BuildOption) (string, []str
 
 	}
 
+	// SUI lib
+	head.AppendHtml("\n\n" + `<script name="sui" type="text/javascript">` + suiLibScript + `</script>` + "\n\n")
+
 	// Page Config
 	page.Config = page.GetConfig()
 

sui/core/event.go

@@ -10,14 +10,26 @@ import (
 )
 
 // BindEvent is a method that binds events to the page.
-func (page *Page) BindEvent(ctx *BuildContext, sel *goquery.Selection) {
+func (page *Page) BindEvent(ctx *BuildContext, sel *goquery.Selection, component ...string) {
+
+	// Component events
+	if len(component) > 0 && component[0] != "" {
+		fmt.Println("component events:", page.Route, component[0])
+		matcher := NewAttrPrefixMatcher(`s:on-`)
+		sel.FindMatcher(matcher).Each(func(i int, s *goquery.Selection) {
+			fmt.Println("\tcomponent event", i, s.Nodes[0].Data)
+			page.appendEventScript(ctx, s, component[0])
+		})
+		return
+	}
+
 	matcher := NewAttrPrefixMatcher(`s:on-`)
 	sel.FindMatcher(matcher).Each(func(i int, s *goquery.Selection) {
-		page.appendEventScript(ctx, s)
+		page.appendEventScript(ctx, s, "")
 	})
 }
 
-func (page *Page) appendEventScript(ctx *BuildContext, sel *goquery.Selection) {
+func (page *Page) appendEventScript(ctx *BuildContext, sel *goquery.Selection, component string) {
 
 	if len(sel.Nodes) == 0 {
 		return
@@ -71,13 +83,18 @@ func (page *Page) appendEventScript(ctx *BuildContext, sel *goquery.Selection) {
 
 	source := ""
 	for name, handler := range events {
-		source += pageEventInjectScript(id, name, dataRaw, jsonRaw, handler) + "\n"
+		if component == "" {
+			source += pageEventInjectScript(id, name, dataRaw, jsonRaw, handler) + "\n"
+		} else {
+			source += compEventInjectScript(id, name, component, dataRaw, jsonRaw, handler) + "\n"
+		}
 		sel.RemoveAttr(fmt.Sprintf("s:on-%s", name))
 	}
 
 	ctx.scripts = append(ctx.scripts, ScriptNode{
 		Source:    source,
 		Namespace: page.namespace,
+		Component: component,
 		Attrs:     []html.Attribute{{Key: "event", Val: id}},
 	})
 

sui/core/injections.go

@@ -2,11 +2,7 @@ package core
 
 import "fmt"
 
-const initScriptTmpl = `
-	try {
-		var __sui_data = %s;
-	} catch (e) { console.log('init data error:', e); }
-
+const suiLibScript = `
 
 	function __sui_event_handler(event, dataKeys, jsonKeys, elm, handler) {
 		const data = {};
@@ -26,10 +22,47 @@ const initScriptTmpl = `
 				}
 			}
 		})
-			
+
 		handler && handler(event, data, elm);
 	};
 
+	function __sui_store(elm) {
+		elm = elm || document.body;
+
+		this.Get = function (key) {
+			return elm.getAttribute("data:" + key);
+		}
+
+		this.Set = function (key, value) {
+			elm.setAttribute("data:" + key, value);
+		}
+
+		this.GetJSON = function (key) {
+			const value = elm.getAttribute("json:" + key);
+			if (value && value != "") {
+				try {
+					const res = JSON.parse(value);
+					return res;
+				} catch (e) {
+					const message = e.message || e || "An error occurred";
+					console.error(` + "`[SUI] Event Handler Error: ${message}`" + `, elm);
+					return null;
+				}
+			}
+			return null;
+		}
+
+		this.SetJSON = function (key, value) {
+			elm.setAttribute("json:" + key, JSON.stringify(value));
+		}
+	}
+`
+
+const initScriptTmpl = `
+	try {
+		var __sui_data = %s;
+	} catch (e) { console.log('init data error:', e); }
+
 	document.addEventListener("DOMContentLoaded", function () {
 		try {
 			document.querySelectorAll("[s\\:ready]").forEach(function (element) {
@@ -71,6 +104,15 @@ const pageEventScriptTmpl = `
 	});
 `
 
+const compEventScriptTmpl = `
+	document.querySelector("[s\\:event=%s]").addEventListener("%s", function (event) {
+		const dataKeys = %s;
+		const jsonKeys = %s;
+		const handler = new %s(this).%s;
+		__sui_event_handler(event, dataKeys, jsonKeys, this, handler);
+	});
+`
+
 func bodyInjectionScript(jsonRaw string, debug bool) string {
 	jsPrintData := ""
 	if debug {
@@ -86,3 +128,7 @@ func headInjectionScript(jsonRaw string) string {
 func pageEventInjectScript(eventID, eventName, dataKeys, jsonKeys, handler string) string {
 	return fmt.Sprintf(pageEventScriptTmpl, eventID, eventName, dataKeys, jsonKeys, handler)
 }
+
+func compEventInjectScript(eventID, eventName, component, dataKeys, jsonKeys, handler string) string {
+	return fmt.Sprintf(compEventScriptTmpl, eventID, eventName, dataKeys, jsonKeys, component, handler)
+}