+++ /dev/null
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package present
-
-import (
- "fmt"
- "strings"
-)
-
-func init() {
- Register("video", parseVideo)
-}
-
-type Video struct {
- Cmd string // original command from present source
- URL string
- SourceType string
- Width int
- Height int
-}
-
-func (v Video) PresentCmd() string { return v.Cmd }
-func (v Video) TemplateName() string { return "video" }
-
-func parseVideo(ctx *Context, fileName string, lineno int, text string) (Elem, error) {
- args := strings.Fields(text)
- if len(args) < 3 {
- return nil, fmt.Errorf("incorrect video invocation: %q", text)
- }
- vid := Video{Cmd: text, URL: args[1], SourceType: args[2]}
- a, err := parseArgs(fileName, lineno, args[3:])
- if err != nil {
- return nil, err
- }
- switch len(a) {
- case 0:
- // no size parameters
- case 2:
- // If a parameter is empty (underscore) or invalid
- // leave the field set to zero. The "video" action
- // template will then omit that vid tag attribute and
- // the browser will calculate the value to preserve
- // the aspect ratio.
- if v, ok := a[0].(int); ok {
- vid.Height = v
- }
- if v, ok := a[1].(int); ok {
- vid.Width = v
- }
- default:
- return nil, fmt.Errorf("incorrect video invocation: %q", text)
- }
- return vid, nil
-}