Beta Android Support
This commit is contained in:
Sebastián Katzer
parent
3d9aa7b9d5
commit
a27f5a9e0f
1
.gitignore
vendored
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1
.gitignore
vendored
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sdcard.img
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BIN
sdcard.img.lock
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BIN
sdcard.img.lock
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@ -10,19 +10,319 @@
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package de.appplant.cordova.plugin;
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import java.io.File;
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import java.util.ArrayList;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import android.app.Activity;
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import android.content.Intent;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Picture;
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import android.net.Uri;
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import android.text.Html;
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import android.os.Handler;
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import android.view.View;
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import android.view.ViewGroup;
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import android.webkit.WebView;
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import android.webkit.WebViewClient;
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import org.apache.cordova.CordovaPlugin;
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import org.apache.cordova.CallbackContext;
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import org.apache.cordova.PluginResult;
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public class Printer extends CordovaPlugin {
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private CallbackContext ctx;
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/**
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* Auflistung von App-IDs, welche den Content ausdrucken können
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*/
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private String printAppIds[] = {
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"kr.co.iconlab.BasicPrintingProfile", // Bluetooth Smart Printing
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"com.blueslib.android.app", // Bluetooth SPP Printer API
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"com.brother.mfc.brprint", // Brother iPrint&Scan
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"com.brother.ptouch.sdk", // Brother Print Library
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"jp.co.canon.bsd.android.aepp.activity", // Canon Easy-PhotoPrint
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"com.pauloslf.cloudprint", // Cloud Print
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"com.dlnapr1.printer", // CMC DLNA Print Client
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"com.dell.mobileprint", // Dell Mobile Print
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"com.printjinni.app.print", // PrintJinni
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"epson.print", // Epson iPrint
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"jp.co.fujixerox.prt.PrintUtil.PCL", // Fuji Xerox Print Utility
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"jp.co.fujixerox.prt.PrintUtil.Karin", // Fuji Xeros Print&Scan (S)
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"com.hp.android.print", // HP ePrint" "com.hp.android.print
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"com.blackspruce.lpd", // Let's Print Droid
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"com.threebirds.notesprint", // NotesPrint print your notes
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"com.xerox.mobileprint", // Print Portal (Xerox)
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"com.zebra.kdu", // Print Station (Zebra)
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"net.jsecurity.printbot", // PrintBot
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"com.dynamixsoftware.printhand", // PrintHand Mobile Print
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"com.dynamixsoftware.printhand.premium", // PrintHand Mobile Print Premium
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"com.sec.print.mobileprint", // Samsung Mobile Print
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"com.rcreations.send2printer", // Send 2 Printer
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"com.ivc.starprint", // StarPrint
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"com.threebirds.easyviewer", // WiFi Print
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"com.woosim.android.print", // Woosim BT printer
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"com.woosim.bt.app", // WoosimPrinter
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"com.zebra.android.zebrautilities", // Zebra Utilities
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};
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@Override
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public boolean execute (String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
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// Etwas soll ausgedruckt werden
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if ("print".equals(action)) {
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print(args, callbackContext);
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return true;
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}
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// Es soll überprüft werden, ob ein Dienst zum Ausdrucken von Inhalten zur Verfügung steht
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if ("isServiceAvailable".equals(action)) {
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isServiceAvailable(callbackContext);
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return true;
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}
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// Returning false results in a "MethodNotFound" error.
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return false;
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}
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/**
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* Überprüft, ob ein Drucker zur Verfügung steht.
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*/
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private void isServiceAvailable (CallbackContext ctx) {
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JSONArray appIds = this.getInstalledAppIds();
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Boolean available = appIds.length() > 0;
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PluginResult result = new PluginResult(PluginResult.Status.OK, available);
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ctx.sendPluginResult(result);
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}
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/**
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* Druckt den HTML Content aus.
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*/
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private void print (final JSONArray args, CallbackContext ctx) {
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final Printer self = this;
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this.ctx = ctx;
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cordova.getActivity().runOnUiThread( new Runnable() {
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public void run() {
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String appId = self.getFirstInstalledAppId();
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if (appId == null) {
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self.ctx.success(4);
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return;
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};
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String content = args.optString(0, "<html></html>");
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Intent controller = self.getPrintController(appId);
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self.adjustSettingsForPrintController(controller);
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self.loadContentIntoPrintController(content, controller);
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self.startPrinterApp(controller);
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}
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});
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}
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/**
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* Erstellt den Print-View.
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*/
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private Intent getPrintController (String appId) {
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String intentId = "android.intent.action.SEND";
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if (appId.equals("com.rcreations.send2printer")) {
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intentId = "com.rcreations.send2printer.print";
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} else if (appId.equals("com.dynamixsoftware.printershare")) {
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intentId = "android.intent.action.VIEW";
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} else if (appId.equals("com.hp.android.print")) {
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intentId = "org.androidprinting.intent.action.PRINT";
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}
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Intent intent = new Intent(intentId);
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if (appId != null)
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intent.setPackage(appId);
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return intent;
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}
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/**
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* Stellt die Eigenschaften des Druckers ein.
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*/
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private void adjustSettingsForPrintController (Intent intent) {
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String mimeType = "image/png";
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String appId = intent.getPackage();
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// Check for special cases that can receive HTML
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if (appId.equals("com.rcreations.send2printer") || appId.equals("com.dynamixsoftware.printershare")) {
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mimeType = "text/html";
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}
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intent.setType(mimeType);
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}
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/**
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* Lädt den zu druckenden Content in ein WebView, welcher vom Drucker ausgedruckt werden soll.
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*/
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private void loadContentIntoPrintController (String content, Intent intent) {
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String mimeType = intent.getType();
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if (mimeType.equals("text/html")) {
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loadContentAsHtmlIntoPrintController(content, intent);
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} else {
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loadContentAsBitmapIntoPrintController(content, intent);
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}
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}
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/**
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* Lädt den zu druckenden Content als HTML in ein WebView, welcher vom Drucker ausgedruckt werden soll.
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*/
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private void loadContentAsHtmlIntoPrintController (String content, Intent intent) {
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intent.putExtra(Intent.EXTRA_TEXT, content);
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}
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/**
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* Lädt den zu druckenden Content als BMP in ein WebView, welcher vom Drucker ausgedruckt werden soll.
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*/
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private void loadContentAsBitmapIntoPrintController (String content, final Intent intent) {
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Activity ctx = cordova.getActivity();
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final WebView page = new WebView(ctx);
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final Printer self = this;
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page.setVisibility(View.INVISIBLE);
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page.getSettings().setJavaScriptEnabled(false);
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page.setWebViewClient( new WebViewClient() {
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@Override
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public void onPageFinished(final WebView page, String url) {
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new Handler().postDelayed( new Runnable() {
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@Override
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public void run() {
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Bitmap screenshot = self.takeScreenshot(page);
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File tmpFile = self.saveScreenshotToTmpFile(screenshot);
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intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(tmpFile));
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ViewGroup vg = (ViewGroup)(page.getParent());
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vg.removeView(page);
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}
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}, 1000);
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}
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});
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//Set base URI to the assets/www folder
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String baseURL = webView.getUrl();
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baseURL = baseURL.substring(0, baseURL.lastIndexOf('/') + 1);
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ctx.addContentView(page, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
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page.loadDataWithBaseURL(baseURL, content, "text/html", "UTF-8", null);
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}
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/**
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* Nimmt einen Screenshot der Seite auf.
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*/
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private Bitmap takeScreenshot (WebView page) {
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Picture picture = page.capturePicture();
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Bitmap bitmap = Bitmap.createBitmap(picture.getWidth(), picture.getHeight(), Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(bitmap);
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picture.draw(canvas);
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return bitmap;
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}
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/**
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* Speichert den Screenshot der Seite in einer tmp. Datei ab.
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*/
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private File saveScreenshotToTmpFile (Bitmap screenshot) {
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try {
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File tmpFile = File.createTempFile("screenshot", ".tmp");
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FileOutputStream stream = new FileOutputStream(tmpFile);
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screenshot.compress(Bitmap.CompressFormat.PNG, 100, stream);
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stream.close();
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return tmpFile;
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* Öffnet die Printer App, damit der Content ausgedruckt werden kann.
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*/
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private void startPrinterApp (Intent intent) {
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cordova.startActivityForResult(this, intent, 0);
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}
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/**
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* Findet heraus, ob die Anwendung installiert ist.
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*/
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private boolean isAppInstalled (String appId) {
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PackageManager pm = cordova.getActivity().getPackageManager();
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try {
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PackageInfo pi = pm.getPackageInfo(appId, 0);
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if (pi != null){
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return true;
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}
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} catch (PackageManager.NameNotFoundException e) {}
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return false;
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}
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/**
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* Die IDs aller verfügbaren Drucker-Apps.
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*/
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private JSONArray getInstalledAppIds () {
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JSONArray appIds = new JSONArray();
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for (int i = 0; i < printAppIds.length; i++) {
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String appId = printAppIds[i];
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Boolean isInstalled = this.isAppInstalled(appId);
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if (isInstalled){
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appIds.put(appId);
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}
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}
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return appIds;
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}
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/**
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* Die erste ID in der Liste, deren App installiert ist.
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*/
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private String getFirstInstalledAppId () {
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for (int i = 0; i < printAppIds.length; i++) {
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String appId = printAppIds[i];
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Boolean isInstalled = this.isAppInstalled(appId);
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if (isInstalled){
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return appId;
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}
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}
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return null;
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent intent) {
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super.onActivityResult(requestCode, resultCode, intent);
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if (resultCode == -1) {
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ctx.success(4);
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} else {
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ctx.success();
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}
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}
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}
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@ -36,9 +36,11 @@ Printer.prototype = {
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* @param {String} content HTML string or DOM node (if latter, innerHTML is used to get the contents)
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* @param {Function?} callback callback function called if print is completed. {success: bool, available: bool, error: reason}
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* @param {Object?} scope callback scope (default: window)
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* @param {Object?} options platform specific options
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*/
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print: function (content, callback, scope) {
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var page = content.innerHTML || content,
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print: function (content, callback, scope, options) {
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var page = content.innerHTML || content,
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options = options || {},
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callbackFn;
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if (typeof page != 'string') {
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@ -54,7 +56,7 @@ Printer.prototype = {
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}
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}
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cordova.exec(callbackFn, null, 'Printer', 'print', [page]);
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cordova.exec(callbackFn, null, 'Printer', 'print', [page, options]);
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}
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};
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