/**
* Handle events on screen's widgets.
*/
void TitleScreen::widgetClicked(MAHandle widgetHandle)
{
char buf[6];
if ( widgetHandle == mNextButton )
{
// For selected titles, a short snippet will be displayed ( in a separate screen).
updateWikiTitles();
// Show the next screen.
mSummaryScreen->showScreen(true);
}
else if ( widgetHandle == mBackButton )
{
// Go back to the home screen.
showHomeScreen();
}
else if ( mSelectAll == widgetHandle )
{
// Select all titles, or deselect them.
maWidgetGetProperty(mSelectAll, MAW_CHECK_BOX_CHECKED, buf, 6);
for (int i=0; i < mCheckBoxes.size(); i++)
{
maWidgetSetProperty(mCheckBoxes[i], MAW_CHECK_BOX_CHECKED, buf);
}
}
else
{
// If a check box is unselected, than Select all is unselected too.
for (int i=0; i < mCheckBoxes.size(); i++)
{
if (mCheckBoxes[i] == widgetHandle){
maWidgetGetProperty(
mCheckBoxes[i], MAW_CHECK_BOX_CHECKED, buf, 6);
if (strcmp(buf, "false") == 0)
{
maWidgetSetProperty(
mSelectAll, MAW_CHECK_BOX_CHECKED, "false");
}
break;
}
}
}
}
/**
* Widget override.
* Get a widget property as a string, setting also the result code.
*/
MAUtil::String FacebookWebView::getPropertyString( const MAUtil::String& property ) const
{
char *buffer = new char[BUFFER_SIZE];
int result = maWidgetGetProperty(this->getWidgetHandle(), property.c_str(), buffer, BUFFER_SIZE);
MAUtil::String temp;
if( result == MAW_RES_INVALID_STRING_BUFFER_SIZE)
{
delete []buffer;
int newBufferSize = 2*BUFFER_SIZE;
buffer = new char[newBufferSize];
result = maWidgetGetProperty(this->getWidgetHandle(), property.c_str(), buffer, newBufferSize);
}
if( result == RES_OK)
{
temp.append(buffer, BUFFER_SIZE);
}
delete []buffer;
return temp;
}
/**
* Update wiki list of titles, with the ones selected by the user.
*/
void TitleScreen::updateWikiTitles()
{
// For each check box that is unchecked, mark the corresponding entry
// in the engine. So that when displaying summary screen, those entries
// will not be displayed.
mWiki->clearHiddenIndexList();
char buf[6];
for (int i =0; i < mCheckBoxes.size(); i++)
{
maWidgetGetProperty(mCheckBoxes[i], MAW_CHECK_BOX_CHECKED, buf, 6);
if ( strcmp(buf, "false") == 0 ){
mWiki->markAsHidden(i);
}
}
}
//Next a method for handling events from widgets that have been clicked.
void widgetClicked(MAHandle widgetHandle)
{
//If the clear button was clicked...
if(widgetHandle == mClearButton)
{
//...clear the edit box.
maWidgetSetProperty(mPasswordBox, MAW_EDIT_BOX_TEXT, "");
}
//If the submit button was clicked...
else if(widgetHandle == mSubmitButton)
{
//Declare a buffer for the text contained in the edit box, since
//there is no high level API available.
char passwordTextBuffer[256];
//Get the text from the password box and put it into the buffer.
int textLength = maWidgetGetProperty(mPasswordBox, MAW_EDIT_BOX_TEXT,
passwordTextBuffer, 256);
//If the text does not fit in the buffer, textLength will be set
//to -1, therefore we need to check that the length is greater than
//or equal to 0, otherwise we just ignore the event.
if(textLength == MAW_RES_INVALID_STRING_BUFFER_SIZE)
{
return;
}
//Check that the password is at least 6 characters long.
if(textLength < 6)
{
//If the password is too short we use the instructions label
//to inform the user. Note how C automatically
//concatenates strings split over multiple lines.
maWidgetSetProperty(mInstructions, MAW_LABEL_TEXT, "Password too short. "
"Please enter a password of at least 6 characters:");
}
else
{
//If the password is at least 6 characters long, we congratulate
//user.
maWidgetSetProperty(mInstructions, MAW_LABEL_TEXT, "Password OK");
}
}
}
/**
* Handle widget events.
* @param event A MoSync event data structure.
*/
void NativeScreen::customEvent(const MAEvent& event)
{
// Get the information sent by the widget.
MAWidgetEventData* widgetEventData = (MAWidgetEventData*) event.data;
if ( event.type == EVENT_TYPE_IMAGE_PICKER)
{
if ( event.imagePickerState == 1 )
{
char checkboxBuffer[BUF_SIZE];
maWidgetGetProperty(mEventReturnTypeCheckbox, MAW_CHECK_BOX_CHECKED, checkboxBuffer, BUF_SIZE);
MAUtil::String value = MAUtil::lowerString(checkboxBuffer);
int resCode = -1;
if ( strcmp(value.c_str(),"true") == 0 )
{
resCode = handleImageData(event.imagePickerItem);
}
else
{
resCode = handleImage(event.imagePickerItem);
}
if (resCode == RES_OK)
setLabelText(mLabel, "Preview is available");
else
setLabelText(mLabel, "Preview is not available");
}
else
{
setLabelText(mLabel, "The user canceled the image selection");
}
}
// Check that the event was a click (touch) event.
if (widgetEventData->eventType == MAW_EVENT_CLICKED)
{
// Handle the event emitted by the widget
widgetClicked(widgetEventData->widgetHandle);
}
}
/**
* Provide the checked categories in a string, separated by comma.
*/
MAUtil::String HomeScreen::getCheckedCategories()
{
char buf[6];
MAUtil::String categories="";
for (int i=0; i < mCategoryBoxes.size(); i++)
{
maWidgetGetProperty(mCategoryBoxes[i], MAW_CHECK_BOX_CHECKED, buf, 6);
if ( strcmp(buf, "true") == 0)
{
if ( i == 0 )
{
// All categories are selected, so do not add any search term.
break;
}
// Add category name and commas.
categories += "," + mCategoriesStrings[i];
}
}
return categories;
}
/**
* Handle widget click events.
* @param widgetHandle The handle (reference) to the widget
* that was clicked.
*/
void NativeScreen::widgetClicked(MAHandle widgetHandle)
{
// Exit the application when the exit button is clicked.
if (widgetHandle == mExitButton)
{
TestMoblet::getInstance()->closeEvent();
}
else if ( mButton == widgetHandle)
{
char checkboxBuffer[BUF_SIZE];
maWidgetGetProperty(mEventReturnTypeCheckbox, MAW_CHECK_BOX_CHECKED, checkboxBuffer, BUF_SIZE);
MAUtil::String value = MAUtil::lowerString(checkboxBuffer);
if ( strcmp(value.c_str(),"true") == 0 )
{
maImagePickerOpenWithEventReturnType(MA_IMAGE_PICKER_EVENT_RETURN_TYPE_IMAGE_DATA);
}
else
{
maImagePickerOpen();
}
}
}
/*
* Handle events on screen's widgets
* NOTE: take care to dismiss the Keyboard until you press other buttons,
* because it is not modal.
*/
void HomeScreen::widgetClicked(MAHandle widgetHandle)
{
if (widgetHandle == mSearchButton)
{
// Disable the search button until new search is made.
maWidgetSetProperty(mSearchButton, MAW_WIDGET_ENABLED, "false");
// Close the edit box forced.
maWidgetSetProperty(mEditBox, MAW_EDIT_BOX_SHOW_KEYBOARD, "false");
// Declare a buffer for the text contained in the edit box.
char textBuffer[256];
// Get the text from the edit box and put it into the buffer.
int textLength = maWidgetGetProperty(mEditBox, MAW_EDIT_BOX_TEXT,
textBuffer, 256);
// If the text does not fit in the buffer, textLength will be set
// to -1, therefore we need to check that the length is greater than
// or equal to 0, otherwise we just ignore the event.
if (textLength == MAW_RES_INVALID_STRING_BUFFER_SIZE
||
strcmp(textBuffer,"") == 0)
{
return;
}
MAUtil::String text = textBuffer;
// Now we can perform a wiki search.
// After the result is received and processed, go to next screen.
if (text.size() > 2)
{
// Show the progress bar and it's label.
maWidgetSetProperty(mProgressLabel,MAW_WIDGET_VISIBLE, "true");
maWidgetSetProperty(mProgressBar, MAW_WIDGET_VISIBLE, "true");
// This label is indicating that a search action is in progress.
maWidgetSetProperty(
mProgressLabel, MAW_LABEL_TEXT, MESSAGE_WAITNOTE.c_str());
// Initiate the search with a result limit.
mWiki->search(text, mSliderValue);
}
}
else if ( mCategoryBoxes[0] == widgetHandle)
{
// If All category is selected, all the other ones are selected also.
char buf[6];
maWidgetGetProperty(mCategoryBoxes[0], MAW_CHECK_BOX_CHECKED, buf, 6);
// make sure the first 4 chars are lower case so we can have our strcmp with "true"
for(int i = 0; i < 4; i++) {
buf[i] = tolower(buf[i]);
}
if (strcmp(buf,"true") == 0)
{
// Check the other ones.
for (int i=1; i < mCategoryBoxes.size(); i++)
{
maWidgetSetProperty(mCategoryBoxes[i], MAW_CHECK_BOX_CHECKED, "true");
}
}
else
{
// Uncheck all.
for (int i=1; i < mCategoryBoxes.size(); i++)
{
maWidgetSetProperty(mCategoryBoxes[i], MAW_CHECK_BOX_CHECKED, "false");
}
}
}
else
{
// If any other category then All is unchecked, than uncheck All also.
for (int i=1; i< mCategoryBoxes.size(); i++)
{
if ( mCategoryBoxes[i] == widgetHandle )
{
char buf[6];
maWidgetGetProperty
(mCategoryBoxes[i], MAW_CHECK_BOX_CHECKED, buf, 6);
if (strcmp(buf,"false") == 0)
{
maWidgetSetProperty(
mCategoryBoxes[0], MAW_CHECK_BOX_CHECKED, "false");
}
break;
}
}
}
}
/**
* Handle widget events.
* @param event A MoSync event data structure.
*/
void NativeScreen::customEvent(const MAEvent& event)
{
// Get the information sent by the widget.
MAWidgetEventData* widgetEventData = (MAWidgetEventData*) event.data;
if ( event.type == EVENT_TYPE_IMAGE_PICKER)
{
if ( event.imagePickerState == 1 )
{
// ready, get handle
MAHandle myImage = event.imagePickerItem;
char checkboxBuffer[BUF_SIZE];
maWidgetGetProperty(mEventReturnTypeCheckbox, MAW_CHECK_BOX_CHECKED, checkboxBuffer, BUF_SIZE);
MAUtil::String value = MAUtil::lowerString(checkboxBuffer);
if ( strcmp(value.c_str(),"true") == 0 )
{
MAHandle hImage = maCreatePlaceholder();
int dataSize = maGetDataSize(event.imagePickerItem);
int createImageRes= maCreateImageFromData(hImage, event.imagePickerItem, 0, dataSize);
// Used for testing only.
MAUtil::String info = "Ready.Size = " + MAUtil::integerToString(dataSize) +
"res = " + MAUtil::integerToString(createImageRes) +
", mime type = " + MAUtil::integerToString(event.imagePickerEncodingType);
if ( createImageRes != RES_OK )
{
maAlert("Memory Warning", " The image cannot be created. Try again", NULL, NULL, NULL);
maWidgetSetProperty(mEventReturnTypeCheckbox, MAW_CHECK_BOX_CHECKED, "false");
// If the Android VM gets an out of memory exception, get the image handle instead.
maImagePickerOpen();
}
else
{
char imgHandle[256];
sprintf(imgHandle, "%d", hImage);
int resCode = maWidgetSetProperty(mPreview, MAW_IMAGE_IMAGE, imgHandle);
}
maDestroyPlaceholder(hImage);
}
else
{
char buffer[256];
sprintf(buffer, "%d", myImage);
int resCode = maWidgetSetProperty(mPreview, MAW_IMAGE_IMAGE, buffer);
}
setLabelText(mLabel, "Preview is available");
}
else
{
setLabelText(mLabel, "The user canceled the image selection");
}
}
// Check that the event was a click (touch) event.
if (widgetEventData->eventType == MAW_EVENT_CLICKED)
{
// Handle the event emitted by the widget
widgetClicked(widgetEventData->widgetHandle);
}
}
/**
* 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;
}
/**
* Retrieve an integer property of a widget.
*
* @param handle Handle to the widget
* @param property The property of the widget to get.
*
* @return The value of the property.
*/
int widgetGetPropertyInt(MAHandle handle, const char *property)
{
char buffer[256];
maWidgetGetProperty(handle, property, buffer, 256);
return atoi(buffer);
}