mythuiwebbrowser.h

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#ifndef MYTHUI_WEBBROWSER_H_
#define MYTHUI_WEBBROWSER_H_
 
// qt
#include <QtGlobal>
#include <QUrl>
#include <QString>
#include <QElapsedTimer>
#include <QColor>
#include <QIcon>
#include <QWebEngineView>
#include <QWebEnginePage>
#include <QWebEngineProfile>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QWebEngineFullScreenRequest>
//#include <QWebEngineDownloadRequest>
 
// mythtv
#include "mythuitype.h"
#include "mythuiexp.h"
 
 
class MythUIScrollBar;
class MythUIWebBrowser;
class MythUIBusyDialog;
class MythScreenType;
 
class MythWebEngineView : public QWebEngineView
{
  Q_OBJECT
 
  public:
    MythWebEngineView(QWidget *parent, MythUIWebBrowser *parentBrowser);
    ~MythWebEngineView(void) override;
 
    bool eventFilter(QObject *obj, QEvent *event) override;
    void customEvent(QEvent *e) override; // QWidget
 
 
  protected slots:
    QWebEngineView *createWindow(QWebEnginePage::WebWindowType type) override; // QWebEngineView
 
  private:
    void sendKeyPress(int key, Qt::KeyboardModifiers modifiers, const QString &text = QString());
    bool handleKeyPress(QKeyEvent *event);
    void showDownloadMenu(void);
    void openBusyPopup(const QString &message);
    void closeBusyPopup(void);
 
    static bool isMusicFile(const QString &extension, const QString &mimetype);
    static bool isVideoFile(const QString &extension, const QString &mimetype);
 
    QString getReplyMimetype(void);
    static QString getExtensionForMimetype(const QString &mimetype);
 
    QWebEnginePage    *m_webpage         {nullptr};
    MythUIWebBrowser  *m_parentBrowser   {nullptr};
    QWebEngineProfile *m_profile         {nullptr};
    QNetworkRequest    m_downloadRequest;
    QNetworkReply     *m_downloadReply   {nullptr};
    MythUIBusyDialog  *m_busyPopup       {nullptr};
    bool               m_downloadAndPlay {false};
};
 
class MUI_PUBLIC MythUIWebBrowser : public MythUIType
{
  Q_OBJECT
 
  public:
    MythUIWebBrowser(MythUIType *parent, const QString &name);
    ~MythUIWebBrowser() override;
 
    void Init(void);
 
    void LoadPage(const QUrl& url);
    void SetHtml(const QString &html, const QUrl &baseUrl = QUrl());
 
    void LoadUserStyleSheet(const QUrl& url, const QString &name = QString("mythtv"));
    void RemoveUserStyleSheet(const QString &name);
 
    void SetHttpUserAgent(const QString &userAgent);
 
    QWebEngineSettings *GetWebEngineSettings(void);
    QWebEngineProfile  *GetWebEngineProfile(void);
 
    void Pulse(void) override; // MythUIType
 
    QIcon GetIcon(void);
    QUrl  GetUrl(void);
    QString GetTitle(void);
 
    void SetActive(bool active);
    bool IsActive(void) const { return m_active; }
 
    bool IsInputToggled(void) const { return m_inputToggled; }
    void SetInputToggled(bool inputToggled) { m_inputToggled = inputToggled; }
 
    void  SetZoom(double zoom);
    float GetZoom(void) const;
 
    bool CanGoForward(void);
    bool CanGoBack(void);
 
    void RunJavaScript(const QString& scriptSource);
 
    void SendStatusBarMessage(const QString &text);
 
    void SetDefaultSaveDirectory(const QString &saveDir);
    QString GetDefaultSaveDirectory(void) { return m_defaultSaveDir; }
 
    void SetDefaultSaveFilename(const QString &filename);
    QString GetDefaultSaveFilename(void) { return m_defaultSaveFilename; }
 
    void HandleMouseAction(const QString &action);
 
    void UpdateBuffer(void);
 
    MythScreenType *GetParentScreen(void) { return m_parentScreen; }
 
  public slots:
    void Back(void);
    void Forward(void);
    void ZoomIn(void);
    void ZoomOut(void);
    void Reload(bool useCache = true);
    void TriggerPageAction(QWebEnginePage::WebAction action, bool checked = false);
 
  signals:
    void loadStarted(void);                    
    void loadFinished(bool ok);                
    void loadProgress(int progress);           
    void titleChanged(const QString &title);   
    void statusBarMessage(const QString &text);
    void iconChanged(const QIcon &icon);       
    void iconUrlChanged(const QUrl &url);      
    void fileDownloaded(QString filename);     
 
  protected slots:
    void slotLoadStarted(void);
    void slotLoadFinished(bool Ok);
    void slotLoadProgress(int progress);
    void slotTitleChanged(const QString &title);
    void slotStatusBarMessage(const QString &text);
    void slotIconChanged(const QIcon &icon);
    void slotIconUrlChanged(const QUrl &url);
    void slotScrollPositionChanged(QPointF position);
    void slotContentsSizeChanged(QSizeF size);
    void slotLinkClicked(const QUrl &url);
    void slotTopScreenChanged(MythScreenType *screen);
    void slotScrollBarShowing(void);
    void slotScrollBarHiding(void);
    void slotLosingFocus();
    void slotTakingFocus();
    void slotRenderProcessTerminated(QWebEnginePage::RenderProcessTerminationStatus terminationStatus, int exitCode);
    static void slotFullScreenRequested(QWebEngineFullScreenRequest fullScreenRequest);
    void slotWindowCloseRequested(void);
 
  protected:
    void SetBackgroundColor(QColor color);
    void ResetScrollBars(void);
    void UpdateScrollBars(void);
    bool IsOnTopScreen(void);
 
    void Finalize(void) override; // MythUIType
    void DrawSelf(MythPainter *p, int xoffset, int yoffset, int alphaMod, QRect clipRect) override; // MythUIType
    bool ParseElement(const QString &filename, QDomElement &element, bool showWarnings) override;   // MythUIType
    void CopyFrom(MythUIType *base) override;     // MythUIType
    void CreateCopy(MythUIType *parent) override; // MythUIType
 
    MythScreenType *m_parentScreen         { nullptr };
 
    QWebEngineView *m_webEngine            { nullptr };
    MythRect        m_browserArea;
    MythRect        m_actualBrowserArea;
 
    MythImage    *m_image                  { nullptr };
 
    bool          m_active                 { false   };
    bool          m_wasActive              { false   };
    bool          m_initialized            { false   };
    QElapsedTimer m_lastUpdateTime;
    int           m_updateInterval         { 0       };
 
    qreal         m_zoom                   { 1.0     };
    QColor        m_bgColor;
    QUrl          m_widgetUrl;
    QString       m_userCssFile;
    QString       m_defaultSaveDir;
    QString       m_defaultSaveFilename;
 
    bool          m_inputToggled           { false   };
    QString       m_lastMouseAction;
    int           m_mouseKeyCount          { 0       };
    QElapsedTimer m_lastMouseActionTime;
 
    MythUIScrollBar *m_horizontalScrollbar { nullptr };
    MythUIScrollBar *m_verticalScrollbar   { nullptr };
};
 
#endif