Localization of user interface elements localization-of-user-interface-elements
Certain content that the eCatalog Viewer displays is subject to localization, including zoom buttons, page change buttons, thumbnail button, full-screen button, close button, and scroll bar buttons.
Every textual content in the viewer that can be localized is represented by a special Viewer SDK identifier called SYMBOL. Any SYMBOL has a default-associated text value for the English locale ( "en") supplied with the out-of-the-box viewer, and may also have user-defined values set for as many locales as needed.
When the viewer starts, it checks the current locale to see if there is a user-defined value for each supported SYMBOL in the locale. If there is, it uses the user-defined value; otherwise, it falls back to the out-of-the-box default text.
User-defined localization data can be passed to the viewer as a localization JSON object. Such an object contains the list of supported locales, SYMBOL text values for each locale, and the default locale.
An example of such localization object:
{
"en"