[Libreoffice-commits] online.git: android/lib kit/ChildSession.cpp loleaflet/src

Jan Holesovsky (via logerrit) logerrit at kemper.freedesktop.org
Thu Jul 16 09:53:17 UTC 2020


 android/lib/src/main/cpp/androidapp.cpp  |   54 +++++++++++++++++++++----------
 android/lib/src/main/cpp/androidapp.hpp  |    3 +
 kit/ChildSession.cpp                     |   10 +++++
 loleaflet/src/control/Control.Toolbar.js |    6 ---
 4 files changed, 51 insertions(+), 22 deletions(-)

New commits:
commit 1b3732b941e90223301fecda66f84b01fc397bad
Author:     Jan Holesovsky <kendy at collabora.com>
AuthorDate: Tue Jul 14 14:27:03 2020 +0200
Commit:     Jan Holesovsky <kendy at collabora.com>
CommitDate: Thu Jul 16 11:52:58 2020 +0200

    android: Call the SAVE directly from the native code.
    
    Until now, for the "local save has completed, upload it back to the
    content: URI" messages we were relying on the "local save" -> JavaScript
    -> Java -> "upload to content:/ URI" chain.
    
    It turns out though, that the WebView can be dead by the time we need
    the notification that the save has completed.  This was particularly
    seen on ChromeOS when the document was closed using the [x] in the
    window decoration.
    
    As a solution, we need to pass the info that the "local save" has
    completed directly to Java.  So far this uses the same semantics as the
    postMobileMessage() and reuse its code; but maybe in the future we'll
    need to split this.
    
    Change-Id: If1b93e4f76cee3abc6aebfc3e9072810ab73bb42
    Reviewed-on: https://gerrit.libreoffice.org/c/online/+/98773
    Tested-by: Jenkins
    Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice at gmail.com>
    Reviewed-by: Jan Holesovsky <kendy at collabora.com>

diff --git a/android/lib/src/main/cpp/androidapp.cpp b/android/lib/src/main/cpp/androidapp.cpp
index 6d196434b..59a9be2dd 100644
--- a/android/lib/src/main/cpp/androidapp.cpp
+++ b/android/lib/src/main/cpp/androidapp.cpp
@@ -36,6 +36,10 @@ static int closeNotificationPipeForForwardingThread[2] = {-1, -1};
 static JavaVM* javaVM = nullptr;
 static bool lokInitialized = false;
 
+// Remember the reference to the LOActivity
+jclass g_loActivityClz = nullptr;
+jobject g_loActivityObj = nullptr;
+
 extern "C" JNIEXPORT jint JNICALL
 JNI_OnLoad(JavaVM* vm, void*) {
     javaVM = vm;
@@ -90,7 +94,7 @@ public:
     JNIEnv *getEnv() const { return _env; }
 };
 
-static void send2JS(const JNIThreadContext &jctx, jclass loActivityClz, jobject loActivityObj, const std::vector<char>& buffer)
+static void send2JS(const JNIThreadContext &jctx, const std::vector<char>& buffer)
 {
     LOG_DBG("Send to JS: " << LOOLProtocol::getAbbreviatedMessage(buffer.data(), buffer.size()));
 
@@ -150,8 +154,22 @@ static void send2JS(const JNIThreadContext &jctx, jclass loActivityClz, jobject
 
     JNIEnv *env = jctx.getEnv();
     jstring jstr = env->NewStringUTF(js.c_str());
-    jmethodID callFakeWebsocket = env->GetMethodID(loActivityClz, "callFakeWebsocketOnMessage", "(Ljava/lang/String;)V");
-    env->CallVoidMethod(loActivityObj, callFakeWebsocket, jstr);
+    jmethodID callFakeWebsocket = env->GetMethodID(g_loActivityClz, "callFakeWebsocketOnMessage", "(Ljava/lang/String;)V");
+    env->CallVoidMethod(g_loActivityObj, callFakeWebsocket, jstr);
+    env->DeleteLocalRef(jstr);
+
+    if (env->ExceptionCheck())
+        env->ExceptionDescribe();
+}
+
+void postDirectMessage(std::string message)
+{
+    JNIThreadContext ctx;
+    JNIEnv *env = ctx.getEnv();
+
+    jstring jstr = env->NewStringUTF(message.c_str());
+    jmethodID callPostMobileMessage = env->GetMethodID(g_loActivityClz, "postMobileMessage", "(Ljava/lang/String;)V");
+    env->CallVoidMethod(g_loActivityObj, callPostMobileMessage, jstr);
     env->DeleteLocalRef(jstr);
 
     if (env->ExceptionCheck())
@@ -171,7 +189,7 @@ void closeDocument()
 
 /// Handle a message from JavaScript.
 extern "C" JNIEXPORT void JNICALL
-Java_org_libreoffice_androidlib_LOActivity_postMobileMessageNative(JNIEnv *env, jobject instance, jstring message)
+Java_org_libreoffice_androidlib_LOActivity_postMobileMessageNative(JNIEnv *env, jobject, jstring message)
 {
     const char *string_value = env->GetStringUTFChars(message, nullptr);
 
@@ -198,11 +216,7 @@ Java_org_libreoffice_androidlib_LOActivity_postMobileMessageNative(JNIEnv *env,
             fakeSocketPipe2(closeNotificationPipeForForwardingThread);
 
             // Start another thread to read responses and forward them to the JavaScript
-            jclass clz = env->GetObjectClass(instance);
-            jclass loActivityClz = (jclass) env->NewGlobalRef(clz);
-            jobject loActivityObj = env->NewGlobalRef(instance);
-
-            std::thread([loActivityClz, loActivityObj, currentFakeClientFd]
+            std::thread([currentFakeClientFd]
                         {
                             Util::setThreadName("app2js");
                             JNIThreadContext ctx;
@@ -239,7 +253,7 @@ Java_org_libreoffice_androidlib_LOActivity_postMobileMessageNative(JNIEnv *env,
                                            return;
                                        std::vector<char> buf(n);
                                        n = fakeSocketRead(currentFakeClientFd, buf.data(), n);
-                                       send2JS(ctx, loActivityClz, loActivityObj, buf);
+                                       send2JS(ctx, buf);
                                    }
                                }
                                else
@@ -287,10 +301,18 @@ extern "C" jboolean libreofficekit_initialize(JNIEnv* env, jstring dataDir, jstr
 
 /// Create the LOOLWSD instance.
 extern "C" JNIEXPORT void JNICALL
-Java_org_libreoffice_androidlib_LOActivity_createLOOLWSD(JNIEnv *env, jobject, jstring dataDir, jstring cacheDir, jstring apkFile, jobject assetManager, jstring loadFileURL)
+Java_org_libreoffice_androidlib_LOActivity_createLOOLWSD(JNIEnv *env, jobject instance, jstring dataDir, jstring cacheDir, jstring apkFile, jobject assetManager, jstring loadFileURL)
 {
     fileURL = std::string(env->GetStringUTFChars(loadFileURL, nullptr));
 
+    // remember the LOActivity class and object to be able to call back
+    env->DeleteGlobalRef(g_loActivityClz);
+    env->DeleteGlobalRef(g_loActivityObj);
+
+    jclass clz = env->GetObjectClass(instance);
+    g_loActivityClz = (jclass) env->NewGlobalRef(clz);
+    g_loActivityObj = env->NewGlobalRef(instance);
+
     // already initialized?
     if (lokInitialized)
     {
@@ -332,7 +354,7 @@ Java_org_libreoffice_androidlib_LOActivity_createLOOLWSD(JNIEnv *env, jobject, j
 
 extern "C"
 JNIEXPORT void JNICALL
-Java_org_libreoffice_androidlib_LOActivity_saveAs(JNIEnv *env, jobject instance,
+Java_org_libreoffice_androidlib_LOActivity_saveAs(JNIEnv *env, jobject,
                                                   jstring fileUri_, jstring format_) {
     const char *fileUri = env->GetStringUTFChars(fileUri_, 0);
     const char *format = env->GetStringUTFChars(format_, 0);
@@ -345,7 +367,7 @@ Java_org_libreoffice_androidlib_LOActivity_saveAs(JNIEnv *env, jobject instance,
 
 extern "C"
 JNIEXPORT void JNICALL
-Java_org_libreoffice_androidlib_LOActivity_postUnoCommand(JNIEnv* pEnv, jobject instance,
+Java_org_libreoffice_androidlib_LOActivity_postUnoCommand(JNIEnv* pEnv, jobject,
                                                           jstring command, jstring arguments, jboolean bNotifyWhenFinished)
 {
     const char* pCommand = pEnv->GetStringUTFChars(command, nullptr);
@@ -379,7 +401,7 @@ const char* copyJavaString(JNIEnv* pEnv, jstring aJavaString)
 
 extern "C"
 JNIEXPORT jboolean JNICALL
-Java_org_libreoffice_androidlib_LOActivity_getClipboardContent(JNIEnv *env, jobject instance, jobject lokClipboardData)
+Java_org_libreoffice_androidlib_LOActivity_getClipboardContent(JNIEnv *env, jobject, jobject lokClipboardData)
 {
     const char** mimeTypes = nullptr;
     size_t outCount = 0;
@@ -478,7 +500,7 @@ Java_org_libreoffice_androidlib_LOActivity_getClipboardContent(JNIEnv *env, jobj
 
 extern "C"
 JNIEXPORT void JNICALL
-Java_org_libreoffice_androidlib_LOActivity_setClipboardContent(JNIEnv *env, jobject instance, jobject lokClipboardData) {
+Java_org_libreoffice_androidlib_LOActivity_setClipboardContent(JNIEnv *env, jobject, jobject lokClipboardData) {
     jclass class_ArrayList= env->FindClass("java/util/ArrayList");
     jmethodID methodId_ArrayList_ToArray = env->GetMethodID(class_ArrayList, "toArray", "()[Ljava/lang/Object;");
 
@@ -524,7 +546,7 @@ Java_org_libreoffice_androidlib_LOActivity_setClipboardContent(JNIEnv *env, jobj
 
 extern "C"
 JNIEXPORT void JNICALL
-Java_org_libreoffice_androidlib_LOActivity_paste(JNIEnv *env, jobject instance, jstring inMimeType, jbyteArray inData) {
+Java_org_libreoffice_androidlib_LOActivity_paste(JNIEnv *env, jobject, jstring inMimeType, jbyteArray inData) {
     const char* mimeType = env->GetStringUTFChars(inMimeType, nullptr);
 
     size_t dataArrayLength = env->GetArrayLength(inData);
diff --git a/android/lib/src/main/cpp/androidapp.hpp b/android/lib/src/main/cpp/androidapp.hpp
index 59a9faa5b..ef48bf137 100644
--- a/android/lib/src/main/cpp/androidapp.hpp
+++ b/android/lib/src/main/cpp/androidapp.hpp
@@ -9,4 +9,7 @@
 
 extern int loolwsd_server_socket_fd;
 
+/** Equivalent of postMobileMessage(), but called directly from the native code. */
+void postDirectMessage(std::string message);
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/kit/ChildSession.cpp b/kit/ChildSession.cpp
index 39b9d3b41..df87c94af 100644
--- a/kit/ChildSession.cpp
+++ b/kit/ChildSession.cpp
@@ -33,6 +33,10 @@
 #include <Poco/Net/AcceptCertificateHandler.h>
 #endif
 
+#ifdef __ANDROID__
+#include <androidapp.hpp>
+#endif
+
 #include <common/FileUtil.hpp>
 #include <common/JsonUtil.hpp>
 #include <common/Authorization.hpp>
@@ -2469,7 +2473,7 @@ void ChildSession::loKitCallback(const int type, const std::string& payload)
         break;
     case LOK_CALLBACK_UNO_COMMAND_RESULT:
         sendTextFrame("unocommandresult: " + payload);
-#ifdef IOS
+#if MOBILEAPP
         {
             // After the document has been saved (into the temporary copy that we set up in
             // -[CODocument loadFromContents:ofType:error:]), save it also using the system API so
@@ -2484,12 +2488,16 @@ void ChildSession::loKitCallback(const int type, const std::string& payload)
 
             if (!commandName.isEmpty() && commandName.toString() == ".uno:Save" && !success.isEmpty() && success.toString() == "true")
             {
+#if defined(IOS)
                 CODocument *document = getDocumentDataForMobileAppDocId(_docManager->getMobileAppDocId()).coDocument;
                 [document saveToURL:[document fileURL]
                    forSaveOperation:UIDocumentSaveForOverwriting
                   completionHandler:^(BOOL success) {
                         LOG_TRC("ChildSession::loKitCallback() save completion handler gets " << (success?"YES":"NO"));
                     }];
+#elif defined(__ANDROID__)
+                postDirectMessage("SAVE " + payload);
+#endif
             }
         }
 #endif
diff --git a/loleaflet/src/control/Control.Toolbar.js b/loleaflet/src/control/Control.Toolbar.js
index fa4e52c4b..82ebaa736 100644
--- a/loleaflet/src/control/Control.Toolbar.js
+++ b/loleaflet/src/control/Control.Toolbar.js
@@ -938,11 +938,7 @@ function onCommandResult(e) {
 			postMessageObj['result'] = e.result && e.result.value;
 		}
 
-		if (window.ThisIsTheAndroidApp) {
-			window.postMobileMessage('SAVE ' + JSON.stringify(postMessageObj));
-		} else {
-			map.fire('postMessage', {msgId: 'Action_Save_Resp', args: postMessageObj});
-		}
+		map.fire('postMessage', {msgId: 'Action_Save_Resp', args: postMessageObj});
 	}
 	else if ((commandName === '.uno:Undo' || commandName === '.uno:Redo') &&
 		e.success === true && e.result.value && !isNaN(e.result.value)) { /*UNDO_CONFLICT*/


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