public static PDFJS_Promise <PDFPage> LoadPageAsync(PDFDocument document, int pageIndex)
{
PDFJS_Promise <PDFPage> pagePromise = new PDFJS_Promise <PDFPage>();
#if UNITY_WEBGL && !UNITY_EDITOR
LoadPageParameters parameters = new LoadPageParameters(document, pageIndex);
PDFJS_Library.Instance.PreparePromiseCoroutine(LoadPageCoroutine, pagePromise, parameters).Start();
#else
pagePromise.HasFinished = true;
pagePromise.HasSucceeded = true;
pagePromise.HasReceivedJSResponse = true;
pagePromise.Result = document.GetPage(pageIndex);
#endif
return(pagePromise);
}
private static IEnumerator LoadPageCoroutine(PDFJS_PromiseCoroutine promiseCoroutine, IPDFJS_Promise promise, object par)
{
PDFLibrary.Instance.EnsureInitialized();
while (!PDFLibrary.Instance.IsInitialized)
{
yield return(null);
}
PDFJS_Promise <PDFPage> pagePromise = promise as PDFJS_Promise <PDFPage>;
LoadPageParameters parameters = par as LoadPageParameters;
PDFJS_LoadPage(promise.PromiseHandle, parameters.document.NativePointer.ToInt32(), parameters.pageIndex + 1);
while (!pagePromise.HasReceivedJSResponse)
{
yield return(null);
}
if (pagePromise.HasSucceeded)
{
int pageHandle = int.Parse(pagePromise.JSObjectHandle);
PDFPage page = new PDFPage(parameters.document, new IntPtr(pageHandle), parameters.pageIndex);
pagePromise.Result = page;
pagePromise.HasFinished = true;
promiseCoroutine.ExecuteThenAction(true, page);
}
else
{
pagePromise.Result = null;
pagePromise.HasFinished = true;
promiseCoroutine.ExecuteThenAction(false, null);
}
}
