[Webkit-unassigned] [Bug 73815] New: [Qt] Improve QQuickWebView error handling API

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73815

           Summary: [Qt] Improve QQuickWebView error handling API
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit API
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: hausmann at webkit.org
                CC: vestbo at webkit.org, laszlo.1.gombos at nokia.com,
                    jesus at webkit.org, alexis.menard at openbossa.org,
                    cmarcelo at webkit.org


In WebKit the error consists of three components:

    1) The domain
    2) The domain specific error code
    3) A (localized) description

This is visible in the public WK2 API, it is also used as internal representation and
it maps exactly to how NSError in the public ObjC WebKit API works.

The current QQuickWebView API exposes the domain and error code through a signal and an enum:

    enum ErrorType {
        EngineError,
        NetworkError,
        HttpError,
        DownloadError
    };


    void loadFailed(QQuickWebView::ErrorType errorType, int errorCode, const QUrl& url);

I suggest we adapt our API to the WebKit/NSError way by changing the error type to a domain
string.

In addition we need to document the domains as well as some domain specific error codes.
Perhaps we should also expose the localized description?

Let's discuss here.

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