func handleTextPreviewMessage(parent *ChatWindow, msg *prot.Message, text, ext string) IMessage {
from := msg.GetFrom()
msgType := checkMessageType(from)
label, err := gtk.LabelNew(text)
if err != nil {
goline.LoggerPanicln(err)
}
msgId := msg.GetId()
meta := msg.GetContentMetadata()
var url string
if meta["PUBLIC"] == "TRUE" {
url = meta["DOWNLOAD_URL"]
} else {
url = api.LINE_OBJECT_STORAGE_URL + msgId
}
return NewDownloadableMessage(parent, msgType, from, msgId, url, ext, label)
}
func handleImagePreviewMessage(parent *ChatWindow, msg *prot.Message) IMessage {
from := msg.GetFrom()
msgType := checkMessageType(from)
msgId := msg.GetId()
preview := path.Join(goline.TempDirPath, "preview", msgId)
meta := msg.GetContentMetadata()
var url string
if checkFileNotExist(preview) {
if meta["PUBLIC"] == "TRUE" {
url = meta["PREVIEW_URL"]
} else {
url = api.LINE_OBJECT_STORAGE_URL + msgId + "/preview"
}
err := downloadFile(url, preview)
if err != nil {
goline.LoggerPrintln(err)
return NewTextMessage(parent, msgType, from, "Failed to download preview.")
}
}
image, err := gtk.ImageNew()
if err != nil {
goline.LoggerPanicln(err)
}
image.SetFromFile(preview)
if meta["PUBLIC"] == "TRUE" {
url = meta["DOWNLOAD_URL"]
} else {
url = api.LINE_OBJECT_STORAGE_URL + msgId
}
return NewDownloadableMessage(parent, msgType, from, msgId, url, "", image)
}