How to get innerHtml with runJavaScript

bandito

I am using Qt 5.7. I want to grab the innerHtml. In my source code I am using QGuiApplication, QtWebView::initialize() and QQmlApplicationEngine as in the minibrowser example.

My Qml code is:



    WebView {
        id: webView
        anchors.fill: parent
        url: "https://www.google.com"
        onLoadProgressChanged: {
            if(loadProgress === WebView.LoadSucceededStatus)
               webView.runJavaScript("document.documentElement.innerHTML", function(html) {
                    console.log(result); });
                utils.html(webView.runJavaScript("document.documentElement.innerHTML", function(result) {
                    console.log(result); }));


        }
    }

And my Qt code is:

class Utils : public QObject {
    Q_OBJECT
public:
    Utils(QObject* parent = 0) : QObject(parent) { }
    Q_INVOKABLE static QUrl fromUserInput(const QString& userInput);
    Q_INVOKABLE static void html(const QString html);
};

QUrl Utils::fromUserInput(const QString userInput)
{
    if (userInput.isEmpty())
        return QUrl::fromUserInput("about:blank");
    const QUrl result = QUrl::fromUserInput(userInput);
    return result.isValid() ? result : QUrl::fromUserInput("about:blank");
}


void Utils::html(const QString html)
{
    qDebug()<<html;
}

This returns an empty QString.

What am I doing wrong?

raven-worx

@bandito
first of all why do you create a new thread and don't continue the initial one regarding this topic?

second, your code should rather look like this:

onLoadProgressChanged: {
            if(loadProgress === WebView.LoadSucceededStatus)
                webView.runJavaScript("document.documentElement.innerHTML", function(result) {
                    utils.html(result); });
}

bandito

@raven-worx said in How to get innerHtml with runJavaScript:

onLoadProgressChanged: {
if(loadProgress === WebView.LoadSucceededStatus)
webView.runJavaScript("document.documentElement.innerHTML", function(result) {
utils.html(result); });
}

That worked great.

Thank you very much for the reply and sorry about the extra thread.

I did notice that part of the reason I wasn't getting the html was because WebView.LoadSucceededStatus can happen before the page is completely loaded. I notice it happens a few times during a page load. The work around I used was if(webView.loadProgress === 100). Works like a charm.