added support for draw tools file export on Android < 4.4

mobile/src/com/cradle/iitc_mobile/IITC_JSInterface.java

@@ -6,12 +6,18 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.os.Environment;
 import android.webkit.JavascriptInterface;
 import android.widget.Toast;
 
 import com.cradle.iitc_mobile.IITC_NavigationHelper.Pane;
 import com.cradle.iitc_mobile.share.ShareActivity;
 
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
 // provide communication between IITC script and android app
 public class IITC_JSInterface {
     // context of main activity
@@ -232,4 +238,18 @@ public class IITC_JSInterface {
     public void setPermalink(final String href) {
         mIitc.setPermalink(href);
     }
+
+    @JavascriptInterface
+    public void saveFile(final String filename, final String type, final String content) {
+        try {
+            final File outFile = new File(Environment.getExternalStorageDirectory().getPath() +
+                    "/IITC_Mobile/drawn_items/" + filename);
+            outFile.getParentFile().mkdirs();
+            final FileOutputStream outStream = new FileOutputStream(outFile);
+            IITC_FileManager.copyStream(new ByteArrayInputStream(content.getBytes("UTF-8")), outStream, true);
+            Toast.makeText(mIitc, "Drawn items exported to " + outFile.getPath(), Toast.LENGTH_SHORT).show();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
 }

mobile/src/com/cradle/iitc_mobile/IITC_JSInterfaceKitkat.java

@@ -10,6 +10,7 @@ public class IITC_JSInterfaceKitkat extends IITC_JSInterface {
     }
 
     @JavascriptInterface
+    @Override
     public void saveFile(final String filename, final String type, final String content) {
 
         mIitc.getFileManager().new FileSaveRequest(filename, type, content);

plugins/draw-tools.user.js

@@ -285,7 +285,7 @@ window.plugin.drawTools.manualOpt = function() {
            + '<a onclick="window.plugin.drawTools.optPaste();return false;">Paste Drawn Items</a>'
            + (window.requestFile != undefined
              ? '<a onclick="window.plugin.drawTools.optImport();return false;">Import Drawn Items</a>' : '')
-           + ((typeof android !== 'undefined' && android && android.saveFile) // saveFile only exists on Kitkat+!
+           + ((typeof android !== 'undefined' && android && android.saveFile)
              ? '<a onclick="window.plugin.drawTools.optExport();return false;">Export Drawn Items</a>' : '')
            + '<a onclick="window.plugin.drawTools.optReset();return false;">Reset Drawn Items</a>'
            + '</div>';
@@ -332,7 +332,7 @@ window.plugin.drawTools.optCopy = function() {
 }
 
 window.plugin.drawTools.optExport = function() {
-  if(typeof android !== 'undefined' && android && android.saveFile) { // saveFile only exists on Kitkat+!
+  if(typeof android !== 'undefined' && android && android.saveFile) {
     android.saveFile('IITC-drawn-items.json', 'application/json', localStorage['plugin-draw-tools-layer']);
   }
 }