text: /*
   * Copyright (C) 2018, 2019 Igalia S.L
   * Copyright (C) 2018, 2019 Zodiac Inflight Innovations
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public
   * License along with this library; if not, write to the
   * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #pragma once
  
  #include "config.h"
  
  #include "WPEQtViewBackend.h"
  #include <QQmlEngine>
  #include <QQuickItem>
  #include <QUrl>
  #include <memory>
  #include <wpe/webkit.h>
  #include <wtf/glib/GRefPtr.h>
  
  class WPEQtViewLoadRequest;
  
  class WPEQtView : public QQuickItem {
      Q_OBJECT
      Q_DISABLE_COPY(WPEQtView)
      Q_PROPERTY(QUrl url READ url WRITE setUrl NOTIFY urlChanged)
      Q_PROPERTY(bool loading READ isLoading NOTIFY loadingChanged)
      Q_PROPERTY(int loadProgress READ loadProgress NOTIFY loadProgressChanged)
      Q_PROPERTY(QString title READ title NOTIFY titleChanged)
      Q_PROPERTY(bool canGoBack READ canGoBack NOTIFY loadingChanged)
      Q_PROPERTY(bool canGoForward READ canGoForward NOTIFY loadingChanged)
      Q_ENUMS(LoadStatus)
  
  public:
      enum LoadStatus {
          LoadStartedStatus,
          LoadStoppedStatus,
          LoadSucceededStatus,
          LoadFailedStatus
      };
  
      WPEQtView(QQuickItem* parent = nullptr);
      ~WPEQtView();
      QSGNode* updatePaintNode(QSGNode*, UpdatePaintNodeData*) final;
  
      void triggerUpdate() { QMetaObject::invokeMethod(this, "update"); };
  
      QUrl url() const;
      void setUrl(const QUrl&);
      int loadProgress() const;
      QString title() const;
      bool canGoBack() const;
      bool isLoading() const;
      bool canGoForward() const;
  
  public Q_SLOTS:
      void goBack();
      void goForward();
      void reload();
      void stop();
      void loadHtml(const QString& html, const QUrl& baseUrl = QUrl());
      void runJavaScript(const QString& script, const QJSValue& callback = QJSValue());
  
  Q_SIGNALS:
      void webViewCreated();
      void urlChanged();
      void titleChanged();
      void loadingChanged(WPEQtViewLoadRequest* loadRequest);
      void loadProgressChanged();
  
  protected:
      bool errorOccured() const { return m_errorOccured; };
      void setErrorOccured(bool errorOccured) { m_errorOccured = errorOccured; };
  
      void geometryChanged(const QRectF& newGeometry, const QRectF& oldGeometry) override;
  
      void hoverEnterEvent(QHoverEvent*) override;
      void hoverLeaveEvent(QHoverEvent*) override;
      void hoverMoveEvent(QHoverEvent*) override;
  
      void mousePressEvent(QMouseEvent*) override;
      void mouseReleaseEvent(QMouseEvent*) override;
      void wheelEvent(QWheelEvent*) override;
  
      void keyPressEvent(QKeyEvent*) override;
      void keyReleaseEvent(QKeyEvent*) override;
  
      void touchEvent(QTouchEvent*) override;
  
  private Q_SLOTS:
      void configureWindow();
      void createWebView();
  
  private:
      static void notifyUrlChangedCallback(WPEQtView*);
      static void notifyTitleChangedCallback(WPEQtView*);
      static void notifyLoadProgressCallback(WPEQtView*);
      static void notifyLoadChangedCallback(WebKitWebView*, WebKitLoadEvent, WPEQtView*);
      static void notifyLoadFailedCallback(WebKitWebView*, WebKitLoadEvent, const gchar* failingURI, GError*, WPEQtView*);
  
      GRefPtr<WebKitWebView> m_webView;
      QUrl m_url;
      QString m_html;
      QUrl m_baseUrl;
      QSizeF m_size;
      WPEQtViewBackend* m_backend { nullptr };
      bool m_errorOccured { false };
  };
  