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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
package org.mozilla.geckoview;
import android.util.Log;
import androidx.annotation.AnyThread;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
/**
* {@code PdfFileSaver} instances returned by {@link GeckoSession#getPdfFileSaver()} performs save
* operation.
*/
@AnyThread
public final class SessionPdfFileSaver {
private static final String LOGTAG = "GeckoPdfFileSaver";
private final GeckoSession mSession;
/* package */ SessionPdfFileSaver(@NonNull final GeckoSession session) {
mSession = session;
}
/**
* Save the current PDF.
*
* @return Result of the save operation as a {@link GeckoResult} object.
*/
@NonNull
public GeckoResult<WebResponse> save() {
final GeckoResult<WebResponse> geckoResult = new GeckoResult<>();
mSession
.getEventDispatcher()
.queryBundle("GeckoView:PDFSave", null)
.map(
response -> {
geckoResult.completeFrom(
SessionPdfFileSaver.createResponse(
mSession,
response.getString("url"),
response.getString("filename"),
response.getString("originalUrl"),
true,
false));
return null;
});
return geckoResult;
}
/**
* Create a WebResponse from some binary data in order to use it to download a PDF file.
*
* @param session The session.
* @param url The url for fetching the data.
* @param filename The file name.
* @param originalUrl The original url for the file.
* @param skipConfirmation Whether to skip the confirmation dialog.
* @param requestExternalApp Whether to request an external app to open the file.
* @return a response used to "download" the pdf.
*/
public static @Nullable GeckoResult<WebResponse> createResponse(
@NonNull final GeckoSession session,
@NonNull final String url,
@NonNull final String filename,
@NonNull final String originalUrl,
final boolean skipConfirmation,
final boolean requestExternalApp) {
try {
final GeckoWebExecutor executor = new GeckoWebExecutor(session.getRuntime());
final WebRequest request = new WebRequest(url);
return executor
.fetch(request)
.then(
new GeckoResult.OnValueListener<WebResponse, WebResponse>() {
@Override
public GeckoResult<WebResponse> onValue(final WebResponse response) {
final int statusCode = response.statusCode != 0 ? response.statusCode : 200;
return GeckoResult.fromValue(
new WebResponse.Builder(
originalUrl.startsWith("content://") ? url : originalUrl)
.statusCode(statusCode)
.body(response.body)
.skipConfirmation(skipConfirmation)
.requestExternalApp(requestExternalApp)
.addHeader("Content-Type", "application/pdf")
.addHeader(
"Content-Disposition", "attachment; filename=\"" + filename + "\"")
.build());
}
});
} catch (final Exception e) {
Log.d(LOGTAG, e.getMessage());
return null;
}
}
}