DocumentAttachmentPreviewHandler
class DocumentAttachmentPreviewHandler(context: Context, useDocumentGView: Boolean = true) : AttachmentPreviewHandler
Shows a preview for document attachments.
Behavior depends on useDocumentGView:
true(default): documents are rendered via Google Docs Viewer.false: text-based files (TXT, HTML) are rendered in-app, others open with an external app.
Set via ChatTheme(useDocumentGView = false).