How about the notification in CEF3?

[atai]

Hi all,
I am a newbie with CEF3. I want to ask the situation with desktop notification in CEF3? Is there any solution for it?
Thanks for any help.

[magreenblatt]

CEF3 does not support the notification API. You will need to create your own modal dialogs in your application using native code.

[atai]

I tried to find the taskbar notification in Windows using API, but only could find the code using MFC. I don't know whether we can use it? Or someone already did it using pure WinAPI?

[magreenblatt]

I tried to find the taskbar notification in Windows using API, but only could find the code using MFC. I don't know whether we can use it? Or someone already did it using pure WinAPI?

Did you see this?

[atai]

Yes, I found the Taskbar Notification written in VC++ with MFC.
1. http://www.codeproject.com/Articles/256 ... ion-dialog
2. http://www.codeproject.com/Articles/146 ... essage-box

As I said, I couldn't find the code using pure WinAPI for this. In the second article, they said "Here is the code I would like to share with anyone out there who would also like to use it, but was not able to do so because of no direct API help for the following task.".
How do you think about this?

[atai]

And I found this one: http://www.componentsource.com/products ... mmary.html
But this one is commercial version, I think.

[magreenblatt]

The link I posted above describes the API (Shell_NotifyIcon, etc). You can create your own implementation based on the documentation.

[atai]

Thanks a lot, Marshall.

[atai]

Hi Marshall,
When I tried to add desktop notification into cefclient, I had some problem.

I tried to add notification class (just customize the binding_test as a copy), and tried to use (customize) the binding.html to test notification. I did as follow:

----------------------------------------
1. In binding.html:
1.1. add one more form:
Message: <input type="text" id="message2" value="My Message2">
1.2. add one more textarea result2:
<br/><textarea rows="10" cols="40" id="result2"></textarea>
1.3. add one more app.setMessageCallback:

app.setMessageCallback('desktop_notification', function (name, args) {
document.getElementById('result2').value = "Response: " + args[1];
});

1.4. in function sendMessage() add:
var msg2 = document.getElementById("message2").value;
app.sendMessage('desktop_notification', [msg, msg2]);


3. I add desktop_notification class, the same as binding_test class:

#include "cefclient/desktop_notification.h"
#include "include/cef_browser.h"
#include <algorithm>
#include <string>

namespace desktop_notification {

namespace {

const char* kMessageName = "desktop_notification";

// Handle messages in the browser process.
class ProcessMessageDelegate : public ClientHandler::ProcessMessageDelegate {
public:
ProcessMessageDelegate() {
}

// From ClientHandler::ProcessMessageDelegate.
virtual bool OnProcessMessageReceived(
CefRefPtr<ClientHandler> handler,
CefRefPtr<CefBrowser> browser,
CefProcessId source_process,
CefRefPtr<CefProcessMessage> message) OVERRIDE {
std::string message_name = message->GetName();
if (message_name == kMessageName) {
// Handle the message.
std::string result;
std::string result2;

CefRefPtr<CefListValue> args = message->GetArgumentList();
if (args->GetSize() > 0 && args->GetType(0) == VTYPE_STRING) {
// Our result is a reverse of the original message.
result = args->GetString(0);
result2 = args->GetString(1);

MessageBoxA(NULL,"yes, I can get it", "test",MB_OK);
std::reverse(result2.begin(), result2.end());
} else {
result = "Invalid request";
}

// Send the result back to the render process.
CefRefPtr<CefProcessMessage> response =
CefProcessMessage::Create(kMessageName);
response->GetArgumentList()->SetString(0, result);
response->GetArgumentList()->SetString(1, result2);
browser->SendProcessMessage(PID_RENDERER, response);

return true;
}

return false;
}

IMPLEMENT_REFCOUNTING(ProcessMessageDelegate);
};

} // namespace

void CreateProcessMessageDelegates(ClientHandler::ProcessMessageDelegateSet& delegates)
{
delegates.insert(new ProcessMessageDelegate);
}

} // namespace desktop_notification


----------------------------------------

I tried to rebuild all and run the app, but there is no action in desktop_notification.cpp.
After that, i removed all things I added (comment out), return the beginning, but now the binding_test doesn't work as before.
Marshall, can you help to figure out?
Thanks.

[atai]

I figured out the reason, Marshall,
Need to add desktop_notification::CreateProcessMessageDelegates(delegates); in the ClientHandler.
Now it works Ok.
Thanks.