QTextBrowser::forward() and backward()

[derrickbj]

Hey, Thanks for the response.

I did try connecting the forward() and backward() slots directly, as you see with the homeAct action and the home() slot, but this didn't work either. So I broke them out in order to use qDebug() to make sure the trigger() action was happening, which it is.

Here's my header

#ifndef HELPWINDOW_H
#define HELPWINDOW_H
 
#include "ui_HelpWindow.h"
 
class QToolBar;
 
class HelpWindow : public QMainWindow, private Ui::HelpWindow
{
    Q_OBJECT
public:
    HelpWindow(QWidget* parent = 0, Qt::WFlags fl = 1);
    ~HelpWindow();
 
private slots:
	void goForward();
	void goBack();
 
 
private:
	void openFile(const QString &fileName);
	void loadFile(const QString &fileName);
	void setupActions();
	void setupToolbar();
 
	QToolBar *navToolBar;
	QAction* backAct;
	QAction* forwardAct;
	QAction* homeAct;
 
};
#endif //helpwindow_h

#ifndef HELPWINDOW_H
#define HELPWINDOW_H

#include "ui_HelpWindow.h"

class QToolBar;

class HelpWindow : public QMainWindow, private Ui::HelpWindow
{
    Q_OBJECT
public:
    HelpWindow(QWidget* parent = 0, Qt::WFlags fl = 1);
    ~HelpWindow();

private slots:
	void goForward();
	void goBack();

	
private:
	void openFile(const QString &fileName);
	void loadFile(const QString &fileName);
	void setupActions();
	void setupToolbar();
	
	QToolBar *navToolBar;
	QAction* backAct;
	QAction* forwardAct;
	QAction* homeAct;

};
#endif //helpwindow_h

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[wysota]

This works:

#include <QApplication>
#include <QTextBrowser>
#include <QWidget>
#include <QVBoxLayout>
#include <QPushButton>
#include <QUrl>
 
int main(int argc, char **argv){
  QApplication app(argc, argv);
  QWidget w;
  QVBoxLayout *layout = new QVBoxLayout();
  QPushButton *frwd = new QPushButton("Forward");
  QPushButton *bck = new QPushButton("Back");
  layout->addWidget(frwd);
  layout->addWidget(bck);
  QTextBrowser brws;
  layout->addWidget(&brws);
  w.setLayout(layout);
  QObject::connect(frwd, SIGNAL(clicked()), &brws, SLOT(forward()));
  QObject::connect(bck, SIGNAL(clicked()), &brws, SLOT(backward()));
  QObject::connect(&brws, SIGNAL(forwardAvailable(bool)), frwd, SLOT(setEnabled(bool)));
  QObject::connect(&brws, SIGNAL(backwardAvailable(bool)), bck, SLOT(setEnabled(bool)));
  brws.setSource(QUrl::fromLocalFile("file1.html"));
  w.show();
  return app.exec();
}

#include <QApplication>
#include <QTextBrowser>
#include <QWidget>
#include <QVBoxLayout>
#include <QPushButton>
#include <QUrl>

int main(int argc, char **argv){
  QApplication app(argc, argv);
  QWidget w;
  QVBoxLayout *layout = new QVBoxLayout();
  QPushButton *frwd = new QPushButton("Forward");
  QPushButton *bck = new QPushButton("Back");
  layout->addWidget(frwd);
  layout->addWidget(bck);
  QTextBrowser brws;
  layout->addWidget(&brws);
  w.setLayout(layout);
  QObject::connect(frwd, SIGNAL(clicked()), &brws, SLOT(forward()));
  QObject::connect(bck, SIGNAL(clicked()), &brws, SLOT(backward()));
  QObject::connect(&brws, SIGNAL(forwardAvailable(bool)), frwd, SLOT(setEnabled(bool)));
  QObject::connect(&brws, SIGNAL(backwardAvailable(bool)), bck, SLOT(setEnabled(bool)));
  brws.setSource(QUrl::fromLocalFile("file1.html"));
  w.show();
  return app.exec();
}

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The magic seems to be in using setSource() instead of setHtml().

[derrickbj]

Yep! it was in the setSource()...thanks!