[Android Viewer] Password support

Added password support for documents.

Change-Id: Ifd9cf86894ddaf2fd5ad97510d2ac1b5850611ad
Reviewed-on: https://gerrit.libreoffice.org/40458
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Tomaž Vajngerl <quikee@gmail.com>

2 files changed, 45 insertions, 0 deletions

diff --git a/android/Bootstrap/src/org/libreoffice/kit/Document.java b/android/Bootstrap/src/org/libreoffice/kit/Document.java
index 8278532c6381..6a1f402970ea 100644
--- a/android/Bootstrap/src/org/libreoffice/kit/Document.java
+++ b/android/Bootstrap/src/org/libreoffice/kit/Document.java
@@ -119,6 +119,15 @@ public class Document {
     public static final int KEYBOARD_MODIFIER_MOD2 = 0x4000;
     public static final int KEYBOARD_MODIFIER_MOD3 = 0x8000;
 
+    /** Optional features of LibreOfficeKit, in particular callbacks that block
+     *  LibreOfficeKit until the corresponding reply is received, which would
+     *  deadlock if the client does not support the feature.
+     */
+    public static final long LOK_FEATURE_DOCUMENT_PASSWORD = 1;
+    public static final long LOK_FEATURE_DOCUMENT_PASSWORD_TO_MODIFY = (1 << 1);
+    public static final long LOK_FEATURE_PART_IN_INVALIDATION_CALLBACK = (1 << 2);
+    public static final long LOK_FEATURE_NO_TILED_ANNOTATIONS = (1 << 3);
+
     private final ByteBuffer handle;
     private MessageCallback messageCallback = null;
 
diff --git a/android/Bootstrap/src/org/libreoffice/kit/Office.java b/android/Bootstrap/src/org/libreoffice/kit/Office.java
index 8c616d0e9ce2..25c838ffb2e4 100644
--- a/android/Bootstrap/src/org/libreoffice/kit/Office.java
+++ b/android/Bootstrap/src/org/libreoffice/kit/Office.java
@@ -13,11 +13,18 @@ import java.nio.ByteBuffer;
 
 public class Office {
     private ByteBuffer handle;
+    private MessageCallback messageCallback = null;
 
     public Office(ByteBuffer handle) {
         this.handle = handle;
+        bindMessageCallback();
     }
 
+    /**
+     * Bind the signal callback in LOK.
+     */
+    private native void bindMessageCallback();
+
     public native String getError();
 
     private native ByteBuffer documentLoadNative(String url);
@@ -33,4 +40,33 @@ public class Office {
 
     public native void destroy();
     public native void destroyAndExit();
+    public native void setDocumentPassword(String url, String pwd);
+    public native void setOptionalFeatures(long options);
+
+    public void setMessageCallback(MessageCallback messageCallback) {
+        this.messageCallback = messageCallback;
+    }
+
+    /**
+     * Callback triggered through JNI to indicate that a new signal
+     * from LibreOfficeKit was retrieved.
+     */
+    private void messageRetrievedLOKit(int signalNumber, String payload) {
+        if (messageCallback != null) {
+            messageCallback.messageRetrieved(signalNumber, payload);
+        }
+
+    }
+
+    /**
+     * Callback to retrieve messages from LOK
+     */
+    public interface MessageCallback {
+        /**
+         * Invoked when a message is retrieved from LOK
+         * @param signalNumber - signal type / number
+         * @param payload - retrieved for the signal
+         */
+        void messageRetrieved(int signalNumber, String payload);
+    }
 }