add media description submit (very woozy way, but it works as possible)

README

@@ -12,6 +12,7 @@ Changes (localhost_custom fork):
 - visible edited post time
 - visible quoted post (status in status)
 - visible profile banner in spoiler
+- add media description submit (very woozy way, but it works as possible)
 - add schedule status
 - add language input form
 - add expiry status

mastodon/status.go

@@ -431,7 +431,7 @@ func (c *Client) Search(ctx context.Context, q string, qType string, limit int,
 	return &results, nil
 }
 
-func (c *Client) UploadMediaFromMultipartFileHeader(ctx context.Context, fh *multipart.FileHeader) (*Attachment, error) {
+func (c *Client) UploadMediaFromMultipartFileHeader(ctx context.Context, fh *multipart.FileHeader, descr string) (*Attachment, error) {
 	f, err := fh.Open()
 	if err != nil {
 		return nil, err
@@ -441,7 +441,7 @@ func (c *Client) UploadMediaFromMultipartFileHeader(ctx context.Context, fh *mul
 	var buf bytes.Buffer
 	mw := multipart.NewWriter(&buf)
 	fname := filepath.Base(fh.Filename)
-	err = mw.WriteField("description", fname)
+	err = mw.WriteField("description", descr)
 	if err != nil {
 		return nil, err
 	}

renderer/renderer.go

@@ -76,6 +76,14 @@ func generatePollOptions() string {
 	return pollbuilder
 }
 
+func generateMediaDescrForm() string {
+	var mediadescrbuilder string
+	for i := 0; i < 20; i++ {
+		mediadescrbuilder = mediadescrbuilder + `<div><textarea rows="2" id="` + fmt.Sprintf("media-descr-%d", i) + `" name="` + fmt.Sprintf("media-descr-%d", i) + `"></textarea></div>`
+	}
+	return mediadescrbuilder
+}
+
 var quoteRE = regexp.MustCompile("(?mU)(^|> *|\n)(&gt;.*)(<br|$)")
 
 func statusContentFilter(content string, emojis []mastodon.Emoji, mentions []mastodon.Mention) string {
@@ -168,6 +176,7 @@ func NewRenderer(templateGlobPattern string) (r *renderer, err error) {
 		"EmojiFilter":             emojiFilter,
 		"Allowed_emoji_page":      allowed_emoji_page,
 		"GeneratePollOptions":     generatePollOptions,
+		"GenerateMediaDescrForm":  generateMediaDescrForm,
 		"StatusContentFilter":     statusContentFilter,
 		"DisplayInteractionCount": displayInteractionCount,
 		"TimeSince":               timeSince,

service/service.go

@@ -979,11 +979,12 @@ func (s *service) Signout(c *client) (err error) {
 func (s *service) Post(c *client, content string, replyToID string,
 	format string, visibility string, isNSFW bool, spoilerText string,
 	files []*multipart.FileHeader, edit string, language string, expiresIn int, scheduledAt string, 
-	pollOptions []string, pollExpiresIn int, pollHideTotals bool, pollMultiple bool) (id string, err error) {
+	pollOptions []string, pollExpiresIn int, pollHideTotals bool, pollMultiple bool,
+	mediaDescription []string) (id string, err error) {
 
 	var mediaIDs []string
-	for _, f := range files {
+	for idx, f := range files {
-		a, err := c.UploadMediaFromMultipartFileHeader(c.ctx, f)
+		a, err := c.UploadMediaFromMultipartFileHeader(c.ctx, f, mediaDescription[idx])
 		if err != nil {
 			return "", err
 		}

service/transport.go

@@ -313,6 +313,11 @@ func NewHandler(s *service, verbose bool, staticDir string) http.Handler {
 		isNSFW := c.r.FormValue("is_nsfw") == "true"
 		quickReply := c.r.FormValue("quickreply") == "true"
 		files := c.r.MultipartForm.File["attachments"]
+		var mediaDescription []string
+		for i := 0; i < len(files); i++ {
+			v := c.r.FormValue(fmt.Sprintf("media-descr-%d", i))
+			mediaDescription = append(mediaDescription, v)
+		}
 		edit := c.r.FormValue("edit-status-id")
 		language := c.r.FormValue("lang-code")
 		expiresIn, err := strconv.Atoi(c.r.FormValue("expires-in"))
@@ -342,7 +347,7 @@ func NewHandler(s *service, verbose bool, staticDir string) http.Handler {
 		pollHideTotals := c.r.FormValue("poll-hide-totals") == "true"
 		pollMultiple := c.r.FormValue("poll-is-multiple") == "true"
 
-		id, err := s.Post(c, content, replyToID, format, visibility, isNSFW, spoilerText, files, edit, language, expiresIn, scheduledAt, pollOptions, pollExpiresIn, pollHideTotals, pollMultiple)
+		id, err := s.Post(c, content, replyToID, format, visibility, isNSFW, spoilerText, files, edit, language, expiresIn, scheduledAt, pollOptions, pollExpiresIn, pollHideTotals, pollMultiple, mediaDescription)
 		if err != nil {
 			return err
 		}

templates/postform.tmpl

@@ -43,6 +43,9 @@
 	<div>
 		<span class="post-form-field">
 			<input id="post-file-picker" type="file" name="attachments" multiple accesskey="A" title="Attachments (A)">
+			<details><summary> Descriptions for media attachments </summary>
+			{{GenerateMediaDescrForm | Raw}}
+			</details>
 		</span>
 	</div>
 	<button type="submit" accesskey="P" title="Post (P)"> Post </button>