energy_storage/src/widgets/WidgetWeb.cpp

#include "WidgetWeb.h"

WebHandler::WebHandler(QObject* parent)
    : QObject {parent}
{
    webChannel = new QWebChannel();
    // 注册C++对象到QWebChannel，这样远端的QWebChannel也会生成一个对应的JS对象
    // 在JS中引入 qwebchannel.js， 使用 channel.objects.webNative 获取注册的“webNative”
    webChannel->registerObject("webNative", this);
}

void WebHandler::setNativeText(const QString& text)
{
    m_nativeText = text;
    qDebug() << QString("setNativeText:") << text;
    emit signalNativeTextChanged(text);
}

WidgetWeb::WidgetWeb(QWidget* parent) : QWebEngineView(parent)
{
    webHandler_ = new WebHandler();
    this->page()->setWebChannel(webHandler_->webChannel);
    this->setContextMenuPolicy(Qt::NoContextMenu);
}

void WidgetWeb::loadHtml(std::string url)
{
    // "file:///assets/html/echarts//maptest.html"
    this->load(QUrl(url.c_str()));
    connect(this, &QWebEngineView::loadFinished, this, &WidgetWeb::slotLoadFinished);
}

void WidgetWeb::invikeJS(QString jscode)
{
    //QString jscode = QString("showalert('%1')").arg("Hello QtWebEngine!");
    this->page()->runJavaScript(jscode, [](const QVariant& v) { qDebug() << v.toString(); });
}

void WidgetWeb::slotLoadFinished(bool ret)
{
}