Class: ContentTypes
Overlay over [Content_Types].xml, used to resolve part content types at load and to register new ones when parts are added. While clean, the original bytes pass through verbatim on save (byte-identical); once a mutation marks it dirty, OpcPackage.save() writes serialize() instead.
Constructors
Constructor
new ContentTypes():
ContentTypes
Returns
ContentTypes
Accessors
isDirty
Get Signature
get isDirty():
boolean
True once a registration changed the overlay; serialize() is then authoritative.
Returns
boolean
Methods
contentTypeFor()
contentTypeFor(
partName):string|undefined
Exact Override match first, else Default by lowercased extension.
Parameters
| Parameter | Type |
|---|---|
partName | string |
Returns
string | undefined
ensureDefault()
ensureDefault(
extension,contentType):void
Register a Default content type for a (lowercased) extension if absent.
Parameters
| Parameter | Type |
|---|---|
extension | string |
contentType | string |
Returns
void
ensureRegistered()
ensureRegistered(
partName,contentType):void
Ensure partName resolves to contentType, adding the minimum needed. A no-op when an existing Default/Override already resolves it to the same type; otherwise an Override is added (always valid, never conflicts with a differing Default).
Parameters
| Parameter | Type |
|---|---|
partName | string |
contentType | string |
Returns
void
removeOverride()
removeOverride(
partName):void
Drop the Override for partName if present (e.g. when a part is removed). Default rules by extension are left untouched; they may still serve other parts. Marks the overlay dirty when something was removed.
Parameters
| Parameter | Type |
|---|---|
partName | string |
Returns
void
serialize()
serialize():
string
Returns
string
parse()
staticparse(xml):ContentTypes
Parameters
| Parameter | Type |
|---|---|
xml | string |
Returns
ContentTypes