Sulkta-OSS/element-x-ada
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

File: improve a bit pdf loading

Browse source
This commit is contained in:
ganfra 2023-06-05 22:45:49 +02:00
parent e322ba1b32
commit be009baed7
1 changed files with 11 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

16
features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/media/local/pdf/PdfRendererManager.kt
View file

@ -43,11 +43,11 @@ class PdfRendererManager(
mutex.withLock {
withContext(Dispatchers.IO) {
pdfRenderer = PdfRenderer(parcelFileDescriptor).apply {
(0 until pageCount).map { pageIndex ->
PdfPage(width, pageIndex, mutex, this, coroutineScope)
}.also {
mutablePdfPages.value = it
}
// Preload just 3 pages so we can render faster
val firstPages = loadPages(from = 0, to = 3)
mutablePdfPages.value = firstPages
val nextPages = loadPages(from = 3, to = pageCount)
mutablePdfPages.value = firstPages + nextPages
}
}
}
@ -65,4 +65,10 @@ class PdfRendererManager(
}
}
}
private fun PdfRenderer.loadPages(from: Int, to: Int): List<PdfPage> {
return (from until minOf(to, pageCount)).map { pageIndex ->
PdfPage(width, pageIndex, mutex, this, coroutineScope)
}
}
}