Initial commit

vendor/github.com/gin-gonic/gin/render/html.go

@@ -0,0 +1,92 @@
+// Copyright 2014 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+package render
+
+import (
+	"html/template"
+	"net/http"
+)
+
+// Delims represents a set of Left and Right delimiters for HTML template rendering.
+type Delims struct {
+	// Left delimiter, defaults to {{.
+	Left string
+	// Right delimiter, defaults to }}.
+	Right string
+}
+
+// HTMLRender interface is to be implemented by HTMLProduction and HTMLDebug.
+type HTMLRender interface {
+	// Instance returns an HTML instance.
+	Instance(string, interface{}) Render
+}
+
+// HTMLProduction contains template reference and its delims.
+type HTMLProduction struct {
+	Template *template.Template
+	Delims   Delims
+}
+
+// HTMLDebug contains template delims and pattern and function with file list.
+type HTMLDebug struct {
+	Files   []string
+	Glob    string
+	Delims  Delims
+	FuncMap template.FuncMap
+}
+
+// HTML contains template reference and its name with given interface object.
+type HTML struct {
+	Template *template.Template
+	Name     string
+	Data     interface{}
+}
+
+var htmlContentType = []string{"text/html; charset=utf-8"}
+
+// Instance (HTMLProduction) returns an HTML instance which it realizes Render interface.
+func (r HTMLProduction) Instance(name string, data interface{}) Render {
+	return HTML{
+		Template: r.Template,
+		Name:     name,
+		Data:     data,
+	}
+}
+
+// Instance (HTMLDebug) returns an HTML instance which it realizes Render interface.
+func (r HTMLDebug) Instance(name string, data interface{}) Render {
+	return HTML{
+		Template: r.loadTemplate(),
+		Name:     name,
+		Data:     data,
+	}
+}
+func (r HTMLDebug) loadTemplate() *template.Template {
+	if r.FuncMap == nil {
+		r.FuncMap = template.FuncMap{}
+	}
+	if len(r.Files) > 0 {
+		return template.Must(template.New("").Delims(r.Delims.Left, r.Delims.Right).Funcs(r.FuncMap).ParseFiles(r.Files...))
+	}
+	if r.Glob != "" {
+		return template.Must(template.New("").Delims(r.Delims.Left, r.Delims.Right).Funcs(r.FuncMap).ParseGlob(r.Glob))
+	}
+	panic("the HTML debug render was created without files or glob pattern")
+}
+
+// Render (HTML) executes template and writes its result with custom ContentType for response.
+func (r HTML) Render(w http.ResponseWriter) error {
+	r.WriteContentType(w)
+
+	if r.Name == "" {
+		return r.Template.Execute(w, r.Data)
+	}
+	return r.Template.ExecuteTemplate(w, r.Name, r.Data)
+}
+
+// WriteContentType (HTML) writes HTML ContentType.
+func (r HTML) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, htmlContentType)
+}