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PSPDFKit
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Jun 7, 2024
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57 changes: 57 additions & 0 deletions
57
android/src/main/java/com/pspdfkit/react/PDFDocumentModule.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| package com.pspdfkit.react | ||
|
|
||
| import com.facebook.react.bridge.Promise | ||
| import com.facebook.react.bridge.ReactApplicationContext | ||
| import com.facebook.react.bridge.ReactContextBaseJavaModule | ||
| import com.facebook.react.bridge.ReactMethod | ||
| import com.facebook.react.module.annotations.ReactModule | ||
| import com.pspdfkit.document.PdfDocument | ||
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| @ReactModule(name = PDFDocumentModule.NAME) | ||
| class PDFDocumentModule(reactContext: ReactApplicationContext) : ReactContextBaseJavaModule(reactContext) { | ||
|
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| private var documents = mutableMapOf<Int, PdfDocument>() | ||
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| override fun getName(): String { | ||
| return NAME | ||
| } | ||
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| private fun getDocument(reference: Int): PdfDocument? { | ||
| return this.documents[reference] | ||
| } | ||
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| fun setDocument(document: PdfDocument, reference: Int) { | ||
| this.documents[reference] = document | ||
| } | ||
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| @ReactMethod fun getDocumentId(reference: Int, promise: Promise) { | ||
| try { | ||
| // Using uid here until Android exposes the documentId property. | ||
| promise.resolve(this.getDocument(reference)?.uid) | ||
| } catch (e: Throwable) { | ||
| promise.reject("getDocumentId error", e) | ||
| } | ||
| } | ||
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| @ReactMethod fun invalidateCacheForPage(reference: Int, pageIndex: Int, promise: Promise) { | ||
| try { | ||
| this.getDocument(reference)?.invalidateCacheForPage(pageIndex) | ||
| promise.resolve(true) | ||
| } catch (e: Throwable) { | ||
| promise.reject("invalidateCacheForPage error", e) | ||
| } | ||
| } | ||
|
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| @ReactMethod fun invalidateCache(reference: Int, promise: Promise) { | ||
| try { | ||
| this.getDocument(reference)?.invalidateCache() | ||
| promise.resolve(true) | ||
| } catch (e: Throwable) { | ||
| promise.reject("invalidateCache error", e) | ||
| } | ||
| } | ||
|
|
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| companion object { | ||
| const val NAME = "PDFDocumentManager" | ||
| } | ||
| } |
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104 changes: 104 additions & 0 deletions
104
android/src/main/java/com/pspdfkit/react/helper/RemoteDocumentDownloader.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package com.pspdfkit.react.helper | ||
|
|
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| import android.content.Context | ||
| import androidx.appcompat.app.AlertDialog | ||
| import androidx.fragment.app.FragmentActivity | ||
| import androidx.fragment.app.FragmentManager | ||
| import com.facebook.react.bridge.ReactApplicationContext | ||
| import com.pspdfkit.document.download.DownloadJob | ||
| import com.pspdfkit.document.download.DownloadProgressFragment | ||
| import com.pspdfkit.document.download.DownloadRequest | ||
| import com.pspdfkit.document.download.source.DownloadSource | ||
| import java.io.File | ||
| import java.io.IOException | ||
| import java.io.InputStream | ||
| import java.net.HttpURLConnection | ||
| import java.net.MalformedURLException | ||
| import java.net.URL | ||
| import java.net.URLConnection | ||
|
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| class RemoteDocumentDownloader(private val remoteURL: String, | ||
| private var destinationFileURL: String?, | ||
| private val overwriteExisting: Boolean, | ||
| private val context: Context, | ||
| private val fragmentManager: FragmentManager) { | ||
|
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| fun startDownload(callback: (File?) -> Unit) { | ||
| val source: WebDownloadSource = try { | ||
| // Try to parse the URL pointing to the PDF document. | ||
| WebDownloadSource(URL(remoteURL)) | ||
| } catch (e: MalformedURLException) { | ||
| // Error while trying to parse the PDF Download URL | ||
| return | ||
| } | ||
|
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| if (overwriteExisting && destinationFileURL != null) { | ||
| val delete = File(destinationFileURL) | ||
| if (delete.exists()) { | ||
| delete.delete() | ||
| } | ||
| } | ||
|
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| val request = DownloadRequest.Builder(context) | ||
| .source(source) | ||
| .outputFile(if (destinationFileURL == null) | ||
| File(context.getDir("documents", Context.MODE_PRIVATE), "temp.pdf") else | ||
| File(destinationFileURL)) | ||
| .overwriteExisting(overwriteExisting) | ||
| .useTemporaryOutputFile(false) | ||
| .build() | ||
|
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| val job = DownloadJob.startDownload(request) | ||
| job.setProgressListener(object : DownloadJob.ProgressListenerAdapter() { | ||
| override fun onComplete(output: File) { | ||
| callback(output) | ||
| } | ||
|
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| override fun onError(exception: Throwable) { | ||
| callback(null) | ||
| } | ||
| }) | ||
| val fragment = DownloadProgressFragment() | ||
| fragment.show(fragmentManager, "download-fragment") | ||
| fragment.job = job | ||
| } | ||
| } | ||
|
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| class WebDownloadSource constructor(private val documentURL: URL) : DownloadSource { | ||
| /** | ||
| * The open method needs to return an [InputStream] that will provide the complete document. | ||
| */ | ||
| @Throws(IOException::class) | ||
| override fun open(): InputStream { | ||
| val connection = documentURL.openConnection() as HttpURLConnection | ||
| connection.connect() | ||
| return connection.inputStream | ||
| } | ||
|
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| /** | ||
| * If the length is available it can be returned here. This is optional, and can improve the reported download progress, since it will then contain | ||
| * a percentage of download. | ||
| */ | ||
| override fun getLength(): Long { | ||
| var length = DownloadSource.UNKNOWN_DOWNLOAD_SIZE | ||
|
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| // We try to estimate the download size using the content length header. | ||
| var urlConnection: URLConnection? = null | ||
| try { | ||
| urlConnection = documentURL.openConnection() | ||
| val contentLength = urlConnection.contentLength | ||
| if (contentLength != -1) { | ||
| length = contentLength.toLong() | ||
| } | ||
| } catch (e: IOException) { | ||
| // Error while trying to parse the PDF Download URL | ||
| } finally { | ||
| (urlConnection as? HttpURLConnection)?.disconnect() | ||
| } | ||
| return length | ||
| } | ||
|
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| override fun toString(): String { | ||
| return "WebDownloadSource{documentURL=$documentURL}" | ||
| } | ||
| } |
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