void HelpViewer::actionChanged()
{
QAction *a = qobject_cast<QAction *>(sender());
if (a == pageAction(QWebPage::Copy))
emit copyAvailable(a->isEnabled());
else if (a == pageAction(QWebPage::Back))
emit backwardAvailable(a->isEnabled());
else if (a == pageAction(QWebPage::Forward))
emit forwardAvailable(a->isEnabled());
}
void DocumentBrowser::backward()
{
if (m_backwardStack.count() <= 1) {
return;
}
m_forwardStack.push(createHistoryEntry());
m_backwardStack.pop();
emit requestUrl(m_backwardStack.top().url);
emit backwardAvailable(m_backwardStack.count() > 1);
emit forwardAvailable(true);
}
void DocumentBrowser::forward()
{
if (m_forwardStack.isEmpty()) {
return;
}
if (!m_backwardStack.isEmpty()) {
m_backwardStack.top() = createHistoryEntry();
}
m_backwardStack.push(m_forwardStack.pop());
emit requestUrl(m_backwardStack.top().url);
emit backwardAvailable(true);
emit forwardAvailable(m_forwardStack.count() > 0);
}
bool QTextBrowser::qt_emit( int _id, QUObject* _o )
{
switch ( _id - staticMetaObject()->signalOffset() ) {
case 0: backwardAvailable((bool)static_QUType_bool.get(_o+1)); break;
case 1: forwardAvailable((bool)static_QUType_bool.get(_o+1)); break;
case 2: sourceChanged((const QString&)static_QUType_QString.get(_o+1)); break;
case 3: highlighted((const QString&)static_QUType_QString.get(_o+1)); break;
case 4: linkClicked((const QString&)static_QUType_QString.get(_o+1)); break;
case 5: anchorClicked((const QString&)static_QUType_QString.get(_o+1),(const QString&)static_QUType_QString.get(_o+2)); break;
default:
return QTextEdit::qt_emit(_id,_o);
}
return TRUE;
}
void DocumentBrowser::scrollToAnchor(const QString &text)
{
const HistoryEntry &historyEntry = createHistoryEntry();
m_url.setFragment(text);
if (text.isEmpty()) {
m_htmlWidget->setScrollBarValue(Qt::Horizontal,0);
m_htmlWidget->setScrollBarValue(Qt::Vertical,0);
} else {
m_htmlWidget->scrollToAnchor(text);
}
m_urlComboBox->blockSignals(true);
int index = m_urlComboBox->findText(m_url.toString());
if (index == -1) {
m_urlComboBox->addItem(m_url.toString());
index = m_urlComboBox->count()-1;
}
m_urlComboBox->setCurrentIndex(index);
m_urlComboBox->blockSignals(false);
emit documentLoaded();
if (!m_backwardStack.isEmpty() && m_url == m_backwardStack.top().url)
{
//restoreHistoryEntry(m_backwardStack.top());
return;
}
if (!m_backwardStack.isEmpty()) {
m_backwardStack.top() = historyEntry;
}
HistoryEntry entry;
entry.url = m_url;
m_backwardStack.push(entry);
emit backwardAvailable(m_backwardStack.count() > 1);
if (!m_forwardStack.isEmpty() && m_url == m_forwardStack.top().url) {
m_forwardStack.pop();
emit forwardAvailable(m_forwardStack.count() > 0);
} else {
m_forwardStack.clear();
emit forwardAvailable(false);
}
}
DocumentBrowser::DocumentBrowser(LiteApi::IApplication *app, QObject *parent) :
LiteApi::IDocumentBrowser(parent),
m_liteApp(app),
m_extension(new Extension)
{
m_widget = new QWidget;
m_htmlWidget = app->htmlWidgetManager()->createByName(this,"QTextBrowser");
m_toolBar = new QToolBar;
m_toolBar->setIconSize(LiteApi::getToolBarIconSize());
m_backwardAct = new QAction(QIcon("icon:images/backward.png"),tr("Back"),this);
m_forwardAct = new QAction(QIcon("icon:images/forward.png"),tr("Forward"),this);
m_reloadUrlAct = new QAction(QIcon("icon:images/reload.png"),tr("Reload"),this);
m_toolBar->addAction(m_backwardAct);
m_toolBar->addAction(m_forwardAct);
LiteApi::IActionContext *actionContext = m_liteApp->actionManager()->getActionContext(this,"Document");
m_increaseFontSize = new QAction(tr("Increase Font Size"),this);
actionContext->regAction(m_increaseFontSize,"IncreaseFontSize","Ctrl++;Ctrl+=");
m_decreaseFontSize = new QAction(tr("Decrease Font Size"),this);
actionContext->regAction(m_decreaseFontSize,"DecreaseFontSize","Ctrl+-");
m_resetFontSize = new QAction(tr("Reset Font Size"),this);
actionContext->regAction(m_resetFontSize,"ResizeFontSize","Ctrl+0");
m_urlComboBox = new QComboBox;
m_urlComboBox->setEditable(true);
m_urlComboBox->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Preferred);
m_toolBar->addSeparator();
m_toolBar->addWidget(m_urlComboBox);
m_toolBar->addAction(m_reloadUrlAct);
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->setMargin(0);
mainLayout->setSpacing(0);
mainLayout->addWidget(m_toolBar);
mainLayout->addWidget(m_htmlWidget->widget());
m_widget->setLayout(mainLayout);
m_widget->addAction(m_increaseFontSize);
m_widget->addAction(m_decreaseFontSize);
m_widget->addAction(m_resetFontSize);
connect(m_increaseFontSize,SIGNAL(triggered()),this,SLOT(increaseFontSize()));
connect(m_decreaseFontSize,SIGNAL(triggered()),this,SLOT(decreaseFontSize()));
connect(m_resetFontSize,SIGNAL(triggered()),this,SLOT(resetFontSize()));
connect(m_htmlWidget,SIGNAL(linkHovered(QUrl)),this,SIGNAL(linkHovered(QUrl)));
connect(m_htmlWidget,SIGNAL(linkClicked(QUrl)),this,SLOT(linkClicked(QUrl)));
connect(m_htmlWidget,SIGNAL(loadFinished(bool)),this,SIGNAL(documentLoaded()));
connect(m_backwardAct,SIGNAL(triggered()),this,SLOT(backward()));
connect(m_forwardAct,SIGNAL(triggered()),this,SLOT(forward()));
connect(m_reloadUrlAct,SIGNAL(triggered()),this,SLOT(reloadUrl()));
connect(m_urlComboBox,SIGNAL(activated(QString)),this,SLOT(activatedUrl(QString)));
connect(this,SIGNAL(backwardAvailable(bool)),m_backwardAct,SLOT(setEnabled(bool)));
connect(this,SIGNAL(forwardAvailable(bool)),m_forwardAct,SLOT(setEnabled(bool)));
m_extension->addObject("LiteApi.IDocumentBrowser",this);
m_extension->addObject("LiteApi.IHtmlWidget",m_htmlWidget);
m_extension->addObject("LiteApi.QTextBrowser",m_htmlWidget->widget());
m_htmlWidget->installEventFilter(m_liteApp->editorManager());
requestFontZoom(0);
QPalette p = m_htmlWidget->widget()->palette();
p.setBrush(QPalette::Highlight,Qt::yellow);
p.setColor(QPalette::HighlightedText,Qt::black);
m_htmlWidget->widget()->setPalette(p);
emit backwardAvailable(false);
emit forwardAvailable(false);
}
void Q3TextBrowser::setSource(const QString& name)
{
#ifndef QT_NO_CURSOR
if (isVisible())
qApp->setOverrideCursor(Qt::WaitCursor);
#endif
d->textOrSourceChanged = true;
QString source = name;
QString mark;
int hash = name.indexOf(QLatin1Char('#'));
if (hash != -1) {
source = name.left(hash);
mark = name.mid(hash+1);
}
if (source.left(5) == QLatin1String("file:"))
source = source.mid(6);
QString url = mimeSourceFactory()->makeAbsolute(source, context());
QString txt;
bool dosettext = false;
if (!source.isEmpty() && url != d->curmain) {
const QMimeSource* m =
mimeSourceFactory()->data(source, context());
if (!m){
qWarning("Q3TextBrowser: no mimesource for %s", source.latin1());
}
else {
if (!Q3TextDrag::decode(m, txt)) {
qWarning("Q3TextBrowser: cannot decode %s", source.latin1());
}
}
if (isVisible()) {
QString firstTag = txt.left(txt.indexOf(QLatin1Char('>')) + 1);
if (firstTag.left(3) == QLatin1String("<qt") && firstTag.contains(QLatin1String("type")) && firstTag.contains(QLatin1String("detail"))) {
popupDetail(txt, QCursor::pos());
#ifndef QT_NO_CURSOR
qApp->restoreOverrideCursor();
#endif
return;
}
}
d->curmain = url;
dosettext = true;
}
d->curmark = mark;
if (!mark.isEmpty()) {
url += QLatin1Char('#');
url += mark;
}
if (d->home.count() == 0)
d->home = url;
if (d->stack.isEmpty() || d->stack.top() != url)
d->stack.push(url);
int stackCount = (int)d->stack.count();
if (d->stack.top() == url)
stackCount--;
emit backwardAvailable(stackCount > 0);
stackCount = (int)d->forwardStack.count();
if (d->forwardStack.isEmpty() || d->forwardStack.top() == url)
stackCount--;
emit forwardAvailable(stackCount > 0);
if (dosettext)
Q3TextEdit::setText(txt, url);
if (!mark.isEmpty())
scrollToAnchor(mark);
else
setContentsPos(0, 0);
#ifndef QT_NO_CURSOR
if (isVisible())
qApp->restoreOverrideCursor();
#endif
emit sourceChanged(url);
}
/*!
Sets the text document with the given \a name to be displayed. The
name is looked up in the mimeSourceFactory() of the browser.
In addition to the factory lookup, this functions also checks for
optional anchors and scrolls the document accordingly.
If the first tag in the document is \c <qt \c type=detail>, it is
displayed as a popup rather than as new document in the browser
window itself. Otherwise, the document is set normally via
setText(), with \a name as new context.
If you are using the filesystem access capabilities of the mime
source factory, you have to ensure that the factory knows about the
encoding of specified text files, otherwise no data will be
available. The default factory handles a couple of common file
extensions such as \c *.html and \c *.txt with reasonable defaults. See
QMimeSourceFactory::data() for details.
*/
void QTextBrowser::setSource(const QString& name)
{
#ifndef QT_NO_CURSOR
if ( isVisible() )
qApp->setOverrideCursor( waitCursor );
#endif
QString source = name;
QString mark;
int hash = name.find('#');
if ( hash != -1) {
source = name.left( hash );
mark = name.mid( hash+1 );
}
if ( source.left(5) == "file:" )
source = source.mid(6);
QString url = mimeSourceFactory()->makeAbsolute( source, context() );
QString txt;
bool dosettext = FALSE;
if ( !source.isEmpty() && url != d->curmain ) {
const QMimeSource* m =
mimeSourceFactory()->data( source, context() );
if ( !m ){
qWarning("QTextBrowser: no mimesource for %s", source.latin1() );
}
else {
if ( !QTextDrag::decode( m, txt ) ) {
qWarning("QTextBrowser: cannot decode %s", source.latin1() );
}
}
if ( isVisible() ) {
QString firstTag = txt.left( txt.find('>' )+1 );
QRichText* tmp = new QRichText( firstTag, QApplication::font() );
static QString s_type = QString::fromLatin1("type");
static QString s_detail = QString::fromLatin1("detail");
bool doReturn = FALSE;
if ( tmp->attributes().contains(s_type)
&& tmp->attributes()[s_type] == s_detail )
doReturn = TRUE;
QTextFormatCollection* formats = tmp->formats;
delete tmp;
delete formats; //#### fix inheritance structure in rich text
if ( doReturn ) {
popupDetail( txt, d->lastClick );
#ifndef QT_NO_CURSOR
qApp->restoreOverrideCursor();
#endif
return;
}
}
d->curmain = url;
dosettext = TRUE;
}
d->curmark = mark;
if ( !mark.isEmpty() ) {
url += "#";
url += mark;
}
if ( !d->home )
d->home = url;
if ( d->stack.isEmpty() || d->stack.top() != url) {
d->stack.push( url );
}
int stackCount = d->stack.count();
if ( d->stack.top() == url )
stackCount--;
emit backwardAvailable( stackCount > 0 );
stackCount = d->forwardStack.count();
if ( d->forwardStack.top() == url )
stackCount--;
emit forwardAvailable( stackCount > 0 );
if ( dosettext )
setText( txt, url );
if ( isVisible() && !mark.isEmpty() )
scrollToAnchor( mark );
else
setContentsPos( 0, 0 );
#ifndef QT_NO_CURSOR
if ( isVisible() )
qApp->restoreOverrideCursor();
#endif
}
