void MessageHandler::handleMoSyncMessage(
Wormhole::MessageStream& message,
MAWidgetHandle webViewHandle,
Wormhole::HybridMoblet* moblet)
{
const char* p = message.getNext();
const char* logMessage;
if (0 == strcmp(p, "ExitApplication"))
{
// Exit the application.
moblet->exit();
}
else if (0 == strcmp(p, "SendToBackground"))
{
maSendToBackground();
}
else if (0 == strcmp(p, "SysLog"))
{
logMessage = message.getNext();
maWriteLog(logMessage, strlen(logMessage));
}
else if (0 == strcmp(p, "OpenExternalURL"))
{
maPlatformRequest(message.getNext());
}
else if (0 == strcmp(p, "OpenWormhole"))
{
moblet->openWormhole(webViewHandle);
}
}
/**
* Implementation of standard API exposed to JavaScript
* This function is used to detect different messages from JavaScript
* and call the respective function in MoSync.
*
* @return true if stream was handled, false if not.
*/
bool ResourceMessageHandler::handleMessage(Wormhole::MessageStream& stream)
{
char buffer[512];
const char * action = stream.getNext();
if (0 == strcmp("loadImage", action))
{
const char* imagePath = stream.getNext();
const char* imageID = stream.getNext();
// Load the Image resource.
MAHandle imageHandle = loadImageResource(imagePath);
if (imageHandle > 0)
{
sprintf(buffer,
"mosync.resource.imageLoaded(\"%s\", %d)",
imageID,
imageHandle);
mWebView->callJS(buffer);
}
else
{
// TODO: Better way to inform about the error?
// Call JS function with error code?
// mosync.resource.imageLoaded(<imageID>, -1) ??
char errorMessage[1024];
sprintf(errorMessage,
"@@@ MoSync: ResourceMessageHandler could not load image: %s",
imagePath);
maWriteLog(errorMessage, strlen(errorMessage));
}
}
else if (0 == strcmp("loadRemoteImage", action))
{
const char* imageURL = stream.getNext();
const char* imageID = stream.getNext();
MAHandle imageHandle = maCreatePlaceholder();
mImageDownloader->beginDownloading(imageURL,imageHandle);
sprintf(buffer,
"mosync.resource.imageDownloadStarted(\"%s\", %d)",
imageID,
imageHandle);
mWebView->callJS(buffer);
}
else if (0 == strcmp("DestroyPlaceholder", action))
{
MAHandle handle = stringToInteger(stream.getNext());
maDestroyPlaceholder(handle);
}
else if (0 == strcmp("sendRemoteLogMessage", action))
{
const char* url = stream.getNext();
const char* message = stream.getNext();
sendRemoteLogMessage(message, url);
}
return true;
}
/**
* Function that opens the requested URL.
*/
void handlePlatformRequest(Wormhole::MessageStream& message)
{
// Obtain URL parameter sent from JavaScript.
const char* url = message.getNext();
// Make the request to open the URL.
maPlatformRequest(url);
}
/**
* Calls a JavaScript callback function using the "callbackId"
* parameter. The callbackId is supplied automatically when
* calling mosync.bridge.send wuth a callback function.
* @param message The message stream from which to get the
* callback id.
* @param result A string that contains the data to be returned
* to the JavaScript callback function.
* @param success Success value passed back to JavaScript, used
* to indicate success or error of a call.
*/
void callCallbackWithResult(
Wormhole::MessageStream& message,
const String& result,
bool success)
{
// Get the callbackID parameter.
const char* callbackId = message.getNext();
// Call JavaScript reply handler.
String successValue = success ? "true" : "false";
String script = "mosync.bridge.reply(";
script += callbackId;
script += ",'" + result + "'";
script += "," + successValue + ")";
lprintfln("@@@ JS: %s", script.c_str());
message.getWebView()->callJS(script);
}
/**
* Invoked from JavaScript to evaluate a JS script in a WebView.
*/
void MessageHandler::handleCallJSMessage(
Wormhole::MessageStream& message,
Wormhole::HybridMoblet* moblet)
{
// TODO: Add error handling for missing parameters.
// Get the native MoSync widget handle for the WebView
// this call should be forwarded to.
int webViewHandle = MAUtil::stringToInteger(message.getNext());
// When the handle is zero, we use the main WebView
// (which is usually hidden in a NativeUI app).
if (0 == webViewHandle)
{
webViewHandle = moblet->getWebView()->getWidgetHandle();
}
// Evaluate the JavaScript code in the target WebView.
const char* script = message.getNext();
moblet->callJS(webViewHandle, script);
}
/**
* Set get the score of a named player.
* @param message
*/
void serviceSetScore(Wormhole::MessageStream& message)
{
lprintfln("@@@ serviceSetScore");
// Get the name of the player.
const char* name = message.getNext();
// Get the new score value.
const char* score = message.getNext();
// Update the score for the given name.
char query[128];
sprintf(query, "UPDATE player SET score=%s WHERE name='%s'", score, name);
MAHandle result = maDBExecSQL(mDB, query);
if (MA_DB_OK == result)
{
callCallbackWithResult(message, "Updated score", true);
}
else
{
callCallbackWithResult(message, "Failed to update score", false);
}
}
/**
* Get get the score of a named player and return the result
* to a JavaScript callback function.
* @param message
*/
void serviceGetScore(Wormhole::MessageStream& message)
{
lprintfln("@@@ serviceGetScore");
// Get the name of the player.
const char* name = message.getNext();
// Query the score for the given name.
char query[128];
sprintf(query, "SELECT score FROM player WHERE name='%s'", name);
MAHandle cursor = maDBExecSQL(mDB, query);
if ((cursor > 0) && (MA_DB_OK == maDBCursorNext(cursor)))
{
// Read the score into a String object.
String score;
int result = DBUtil::getColumnString(
cursor, // Cursor handle.
0, // Index of column (we have only one column in the
// result, zero is the index of the first column).
score // String set to the score value.
);
if (MA_DB_OK == result)
{
lprintfln("@@@ serviceGetScore result: %s", score.c_str());
// Return result to JavaScript and exit this function.
callCallbackWithResult(message, score.c_str(), true);
maDBCursorDestroy(cursor);
return;
}
maDBCursorDestroy(cursor);
}
// Return error to JavaScript.
callCallbackWithResult(message, "Could not read score", false);
}
void vibrate(Wormhole::MessageStream& message) {
int duration = MAUtil::stringToInteger(message.getNext());
maVibrate(duration);
}
void orent(Wormhole::MessageStream& message) {
MAUtil::String (url) = MAUtil::String(message.getNext());
showPage(url);
}
/**
* Implementation of standard API exposed to JavaScript
* This function is used to detect different messages from JavaScript
* and call the respective function in MoSync.
*
* @return true if stream was handled, false if not.
*/
bool NativeUIMessageHandler::handleMessage(Wormhole::MessageStream& stream)
{
char buffer[1024];
printf("Getting the next action \n");
char * action = (char*)stream.getNext();
printf("action: %s\n", action);
// Widget Handling Calls
if(0 == strcmp("maWidgetCreate", action))
{
char* widgetType = (char*)stream.getNext();
char* widgetID = (char*)stream.getNext();
char* callbackID = (char*)stream.getNext();
printf("maWidgetCreate: %s, %s, %s\n", widgetType, widgetID, callbackID);
int numParams = stringToInteger(stream.getNext());
MAWidgetHandle widget = maWidgetCreate(widgetType);
if(widget <= 0)
{
sprintf(buffer,"'%s', %d", callbackID, widget);
sendNativeUIError(buffer);
}
else
{
if(numParams > 0)
{
for(int i = 0; i < numParams/2; i++)
{
char* property = (char*)stream.getNext();
char* value = (char*)stream.getNext();
printf("maWidgetSetProperty %s, %s\n", property, value);
int res = maWidgetSetProperty(widget, property, value);
if(res < 0)
{
printf("could not set property\n");
}
else
{
printf("set property done\n");
}
}
}
//We use a special callback for widget creation
printf("calling CallBack \n");
sprintf(
buffer,
"mosync.nativeui.createCallback('%s', '%s', %d)",
callbackID,
widgetID,
widget);
printf("Done creatign the script %s\n", buffer);
mWebView->callJS(buffer);
printf("done Calling Callback");
}
}
else if(0 == strcmp("maWidgetDestroy", action))
{
MAWidgetHandle widget = stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetDestroy(widget);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetAddChild", action) )
{
MAWidgetHandle parent = stringToInteger(stream.getNext());
MAWidgetHandle child = stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetAddChild(parent, child);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetInsertChild", action))
{
MAWidgetHandle parent = stringToInteger((char*)stream.getNext());
MAWidgetHandle child = stringToInteger((char*)stream.getNext());
int index = stringToInteger((char*)stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetInsertChild(parent, child, index);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetRemoveChild", action))
{
MAWidgetHandle child = stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetRemoveChild(child);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetModalDialogShow", action))
{
MAWidgetHandle dialogHandle =
stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetModalDialogShow(dialogHandle);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetModalDialogHide", action))
{
MAWidgetHandle dialogHandle =
stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetModalDialogHide(dialogHandle);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetScreenShow", action))
{
MAWidgetHandle screenHandle =
stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetScreenShow(screenHandle);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetStackScreenPush", action))
{
MAWidgetHandle stackScreen =
stringToInteger(stream.getNext());
MAWidgetHandle newScreen =
stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetStackScreenPush(stackScreen, newScreen);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetStackScreenPop", action))
{
MAWidgetHandle stackScreen =
stringToInteger(stream.getNext());
char* callbackID = (char*)stream.getNext();
int res = maWidgetStackScreenPop(stackScreen);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetSetProperty", action))
{
MAWidgetHandle widget =
stringToInteger(stream.getNext());
char *property = (char*)stream.getNext();
char *value = (char*)stream.getNext();
char* callbackID = (char*)stream.getNext();
int res = maWidgetSetProperty(widget, property, value);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUISuccess(buffer);
}
}
else if(0 == strcmp("maWidgetGetProperty", action))
{
char value[1024];
MAWidgetHandle widget =
stringToInteger(stream.getNext());
char* property = (char*)stream.getNext();
char* callbackID = (char*)stream.getNext();
int res = maWidgetGetProperty(widget, property, value, 1024);
if(res < 0)
{
sprintf(buffer,"'%s', %d", callbackID, res);
sendNativeUIError(buffer);
}
else
{
sprintf(buffer,"'%s', '%s', '%s'", callbackID, property, value);
sendNativeUISuccess(buffer);
}
}
// Tell the WebView that we have processed the stream, so that
// it can send the next one.
char replyScript[1024];
char * mosyncCallBackId = (char*)stream.getNext();
if(mosyncCallBackId != NULL)
{
sprintf(
replyScript,
"mosync.bridge.reply(%s)",
mosyncCallBackId);
printf("calling general callback %s\n", replyScript);
mWebView->callJS(replyScript);
}
return true;
}