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IslamSalahIslamSalah
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iText dependency has been removed form android platform.
1 parent 3e3b6fa commit 313a3be

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+125
-49
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3 files changed

+125
-49
lines changed

‎android/build.gradle‎

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@@ -34,6 +34,4 @@ repositories {
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dependencies {
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compile 'com.facebook.react:react-native:0.20.+'
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compile 'com.itextpdf:itextg:5.5.9'
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compile 'com.itextpdf.tool:xmlworker:5.5.9'
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}

‎android/src/main/java/android/print/PdfConverter.java‎

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@@ -0,0 +1,122 @@
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/*
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* Created on 11/15/17.
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* Written by Islam Salah with assistance from members of Blink22.com
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*/
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package android.print;
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import android.content.Context;
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import android.os.Build;
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import android.os.Handler;
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import android.os.ParcelFileDescriptor;
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import android.util.Log;
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import android.webkit.WebView;
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import android.webkit.WebViewClient;
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import java.io.File;
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/**
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* Converts HTML to PDF.
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* <p>
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* Can convert only one task at a time, any requests to do more conversions before
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* ending the current task are ignored.
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*/
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public class PdfConverter implements Runnable {
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private static final String TAG = "PdfConverter";
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private static PdfConverter sInstance;
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private Context mContext;
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private String mHtmlString;
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private File mPdfFile;
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private PrintAttributes mPdfPrintAttrs;
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private boolean mIsCurrentlyConverting;
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private WebView mWebView;
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private PdfConverter() {
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}
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public static synchronized PdfConverter getInstance() {
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if (sInstance == null)
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sInstance = new PdfConverter();
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return sInstance;
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}
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@Override
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public void run() {
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if (mContext == null || mHtmlString == null || mPdfFile == null) return;
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mWebView = new WebView(mContext);
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mWebView.setWebViewClient(new WebViewClient() {
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@Override
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public void onPageFinished(WebView view, String url) {
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
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PrintDocumentAdapter documentAdapter = mWebView.createPrintDocumentAdapter();
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documentAdapter.onLayout(null, getPdfPrintAttrs(), null, new PrintDocumentAdapter.LayoutResultCallback() {}, null);
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documentAdapter.onWrite(new PageRange[]{PageRange.ALL_PAGES}, getOutputFileDescriptor(), null, new PrintDocumentAdapter.WriteResultCallback() {
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@Override
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public void onWriteFinished(PageRange[] pages) {
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destroy();
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}
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});
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}
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});
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mWebView.loadData(mHtmlString, "text/HTML", "UTF-8");
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}
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public PrintAttributes getPdfPrintAttrs() {
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return mPdfPrintAttrs != null ? mPdfPrintAttrs : getDefaultPrintAttrs();
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}
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public void setPdfPrintAttrs(PrintAttributes printAttrs) {
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this.mPdfPrintAttrs = printAttrs;
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}
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public void convert(Context context, String htmlString, File file) {
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if (mIsCurrentlyConverting)
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return;
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mContext = context;
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mHtmlString = htmlString;
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mPdfFile = file;
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mIsCurrentlyConverting = true;
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runOnUiThread(this);
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}
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private ParcelFileDescriptor getOutputFileDescriptor() {
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try {
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mPdfFile.createNewFile();
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return ParcelFileDescriptor.open(mPdfFile, ParcelFileDescriptor.MODE_TRUNCATE | ParcelFileDescriptor.MODE_READ_WRITE);
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} catch (Exception e) {
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Log.d(TAG, "Failed to open ParcelFileDescriptor", e);
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}
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return null;
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}
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private PrintAttributes getDefaultPrintAttrs() {
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return null;
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return new PrintAttributes.Builder()
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.setMediaSize(PrintAttributes.MediaSize.NA_GOVT_LETTER)
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.setResolution(new PrintAttributes.Resolution("RESOLUTION_ID", "RESOLUTION_ID", 600, 600))
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.setMinMargins(PrintAttributes.Margins.NO_MARGINS)
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.build();
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}
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private void runOnUiThread(Runnable runnable) {
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Handler handler = new Handler(mContext.getMainLooper());
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handler.post(runnable);
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}
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private void destroy() {
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mContext = null;
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mHtmlString = null;
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mPdfFile = null;
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mPdfPrintAttrs = null;
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mIsCurrentlyConverting = false;
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mWebView = null;
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}
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}

‎android/src/main/java/com/christopherdro/htmltopdf/RNHTMLtoPDFModule.java‎

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@@ -7,33 +7,17 @@
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import com.facebook.react.bridge.ReadableMap;
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import com.facebook.react.bridge.Promise;
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import com.facebook.react.bridge.WritableMap;
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import com.facebook.react.bridge.ReadableArray;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.InputStream;
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import java.io.ByteArrayInputStream;
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import java.util.UUID;
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import java.util.HashSet;
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import java.util.Set;
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import java.nio.charset.Charset;
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import com.itextpdf.text.Document;
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import com.itextpdf.text.pdf.PdfWriter;
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import com.itextpdf.text.pdf.codec.Base64;
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import com.itextpdf.tool.xml.XMLWorkerHelper;
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import com.itextpdf.text.FontFactory;
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import com.itextpdf.tool.xml.XMLWorkerFontProvider;
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import android.os.Environment;
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import android.print.PdfConverter;
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public class RNHTMLtoPDFModule extends ReactContextBaseJavaModule {
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private Promise promise;
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private final ReactApplicationContext mReactContext;
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private Set<String> customFonts = new HashSet<>();
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XMLWorkerFontProvider fontProvider = new XMLWorkerFontProvider(XMLWorkerFontProvider.DONTLOOKFORFONTS);
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public RNHTMLtoPDFModule(ReactApplicationContext reactContext) {
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super(reactContext);
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fileName = UUID.randomUUID().toString();
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}
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if (options.hasKey("fonts")) {
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if (options.getArray("fonts") != null) {
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final ReadableArray fonts = options.getArray("fonts");
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for (int i = 0; i < fonts.size(); i++) {
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customFonts.add(fonts.getString(i));
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}
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}
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}
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if (options.hasKey("directory") && options.getString("directory").equals("docs")) {
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File path = new File(Environment.getExternalStorageDirectory(), Environment.DIRECTORY_DOCUMENTS);
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if (!path.exists()) path.mkdir();
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}
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String filePath = convertToPDF(htmlString, destinationFile);
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String base64 = "";
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if (options.hasKey("base64") && options.getBoolean("base64") == true) {
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base64 = Base64.encodeFromFile(filePath);
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}
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WritableMap resultMap = Arguments.createMap();
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resultMap.putString("filePath", filePath);
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resultMap.putString("base64", base64);
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promise.resolve(resultMap);
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} catch (Exception e) {
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private String convertToPDF(String htmlString, File file) throws Exception {
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try {
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Document doc = new Document();
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InputStream in = new ByteArrayInputStream(htmlString.getBytes());
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PdfWriter pdf = PdfWriter.getInstance(doc, new FileOutputStream(file));
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FontFactory.setFontImp(fontProvider);
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for (String font : customFonts) {
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fontProvider.register( font );
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}
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doc.open();
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XMLWorkerHelper.getInstance().parseXHtml(pdf, doc, in, null, Charset.forName("UTF-8"), fontProvider);
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doc.close();
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in.close();
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PdfConverter.getInstance()
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.convert(mReactContext, htmlString, file);
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String absolutePath = file.getAbsolutePath();
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return absolutePath;

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