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Which one to use: QtWebView and QtWebEngine

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  • I Offline
    I Offline
    Iris_419
    wrote on last edited by
    #1

    We have a QT widgets based application for mac and windows platforms. Now we want to have web view loads a local .html on the side of our own rendered content. In the beginning I tried a QWebEngineView however the way it uses for rendering seems have conflict with our own content rendering, which results in our own content not showing up. So I'm thinking of using QtWebView instead. However don't know whether it doable or not.

    After reading the documentation I still don't have a clear picture in mind.
    http://doc.qt.io/qt-5/qtwebview-index.html
    http://doc.qt.io/qt-5/qtwebengine-index.html

    Could someone helps me get a general idea of: what are the differences between QtWebView and QtWebEngine? What are the pros and cons and limitations? Can QtWebView be used in a widgets based application?

    Thanks.

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      The QtWebView module provides a wrapper around platform provided web views which AFAIK, currently, excludes Windows which doesn't provide such a component.

      QtWebEngine is a full featured web browser stack.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • I Offline
        I Offline
        Iris_419
        wrote on last edited by
        #3

        Hi,

        So that means we can't use QtWebView for windows, right?

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          After a check at the current version (5.9). It can be used through the QtWebEngine module if available thus it makes it useable on Windows also but only the Visual Studio version since QtWebEngine can't be build with MinGW (well the chromium part underneath).

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • I Offline
            I Offline
            Iris_419
            wrote on last edited by
            #5

            Hi,

            Sorry I'm new and may have some confusions about Qt.

            May I ask is it possible using QtWebView in a widget base application instead of QML? I can't find any example of this kind.

            Also is QtWebView newly introduced in 5.9 or it already exits in 5.4? Because I can't find any doc for QtWebView in 5.4.

            And I don't quite understand what do you mean by "can be used through the QtWebEngine module", could you please explain more about it or provide an example?

            Thanks a lot!

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              AFAIK, not directly but you can use QQuickWidget.

              No, it was introduced in 5.6.

              From a quick look at the code, the module is enabled for specific platforms which means that it will use the native web view from said platforms or if the QtWebEngine module is available which means that QtWebView can make use of it as backend on platform that don't provide a native web view component.

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • I Offline
                I Offline
                Iris_419
                wrote on last edited by
                #7

                Hi @SGaist ,

                I got a little confused. Currently I'm working on Mac, in Qt 5.4 libraries there is also a "QtWebView.framework". However QtWebView cannot be used on 5.4? (Since our application is currently based on 5.4 and they don't have a plan upgrade to higher version in short time)

                And just wondering for mac, is there a way to customize a widget based on native web view with can be used for displaying a local html?

                Thanks a lot for answering!

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #8

                  Might be a Technical Preview.

                  What customisation do you have in mind ? By the way, you also still have QtWebKit available in this version of Qt.

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • I Offline
                    I Offline
                    Iris_419
                    wrote on last edited by
                    #9

                    Hi @SGaist ,

                    Could you please explain a little more about the use of "Technical Preview"? So if it is a preview, is it possible to experiment with it in 5.4?

                    Thanks!

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #10

                      Technical Preview is the state where a module is deemed mature enough for people interested in Qt to test before it gets officially integrated within Qt. However the module might still change in terms of API following testers input.

                      So sure, you can use it, but it may have changed between there and the time it was officially integrated with Qt.

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      • I Offline
                        I Offline
                        Iris_419
                        wrote on last edited by
                        #11

                        Thank you very much!!

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #12

                          You welcome !

                          If that answers your question, please mark the thread as solved using the "Topic Tools" button so that other forum users may know a solution has been found :)

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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