tabbedbrowser.cpp

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#include "tabbedbrowser.h"
#include "mainwindow.h"
#include "helpwindow.h"
#include "config.h"

#include <QStyleOptionTab>
#include <QToolTip>
#include <QFileInfo>
#include <QToolButton>
#include <QPixmap>
#include <QIcon>
#include <QStyle>
#include <QTimer>
#include <QStackedWidget>
#include <QTimer>
#include <QTextBlock>
#include <QKeyEvent>

#ifdef Q_WS_MAC
const QLatin1String ImageLocation(":trolltech/assistant/images/mac/");
#else
const QLatin1String ImageLocation(":trolltech/assistant/images/win/");
#endif

TabbedBrowser::TabbedBrowser(MainWindow *parent)
    : QWidget(parent)
{
    ui.setupUi(this);
    init();

    QStackedWidget *stack = qFindChild<QStackedWidget*>(ui.tab);
    Q_ASSERT(stack);
    stack->setContentsMargins(0, 0, 0, 0);
    connect(stack, SIGNAL(currentChanged(int)), parent, SLOT(browserTabChanged()));

    QPalette p = palette();
    p.setColor(QPalette::Inactive, QPalette::Highlight,
        p.color(QPalette::Active, QPalette::Highlight));
    p.setColor(QPalette::Inactive, QPalette::HighlightedText,
        p.color(QPalette::Active, QPalette::HighlightedText));
    setPalette(p);
}

TabbedBrowser::~TabbedBrowser()
{
}

MainWindow *TabbedBrowser::mainWindow() const
{
    return static_cast<MainWindow*>(parentWidget());
}

void TabbedBrowser::forward()
{
    currentBrowser()->forward();
    emit browserUrlChanged(currentBrowser()->source().toString());
}

void TabbedBrowser::backward()
{
    currentBrowser()->backward();
    emit browserUrlChanged(currentBrowser()->source().toString());
}

void TabbedBrowser::setSource( const QString &ref )
{
    HelpWindow * win = currentBrowser();
    win->setSource(ref);
}

void TabbedBrowser::reload()
{
    currentBrowser()->reload();
}

void TabbedBrowser::home()
{
    currentBrowser()->home();
}

HelpWindow *TabbedBrowser::currentBrowser() const
{
    return static_cast<HelpWindow*>(ui.tab->currentWidget());
}

void TabbedBrowser::nextTab()
{
    if(ui.tab->currentIndex()<=ui.tab->count()-1)
        ui.tab->setCurrentIndex(ui.tab->currentIndex()+1);
}

void TabbedBrowser::previousTab()
{
    int idx = ui.tab->currentIndex()-1;
    if(idx>=0)
        ui.tab->setCurrentIndex(idx);
}

HelpWindow *TabbedBrowser::createHelpWindow()
{
    MainWindow *mainWin = mainWindow();
    HelpWindow *win = new HelpWindow(mainWin, 0);
    win->setFrameStyle(QFrame::NoFrame);
    win->setPalette(palette());
    win->setSearchPaths(Config::configuration()->mimePaths());
    ui.tab->addTab(win, tr("..."));
    connect(win, SIGNAL(highlighted(QString)),
             (const QObject*) (mainWin->statusBar()), SLOT(showMessage(QString)));
    connect(win, SIGNAL(backwardAvailable(bool)),
             mainWin, SLOT(backwardAvailable(bool)));
    connect(win, SIGNAL(forwardAvailable(bool)),
             mainWin, SLOT(forwardAvailable(bool)));
    connect(win, SIGNAL(sourceChanged(QUrl)), this, SLOT(sourceChanged()));

    ui.tab->cornerWidget(Qt::TopRightCorner)->setEnabled(ui.tab->count() > 1);
	win->installEventFilter(this);
	win->viewport()->installEventFilter(this);
    ui.editFind->installEventFilter(this);
    return win;
}

HelpWindow *TabbedBrowser::newBackgroundTab()
{
    HelpWindow *win = createHelpWindow();
    emit tabCountChanged(ui.tab->count());
    return win;
}

void TabbedBrowser::newTab(const QString &lnk)
{
    QString link(lnk);
    if(link.isNull()) {
        HelpWindow *w = currentBrowser();
        if(w)
            link = w->source().toString();
    }
    HelpWindow *win = createHelpWindow();
    ui.tab->setCurrentIndex(ui.tab->indexOf(win));
    if(!link.isNull()) {
         win->setSource(link);
    }

    emit tabCountChanged(ui.tab->count());
}

void TabbedBrowser::zoomIn()
{
    currentBrowser()->zoomIn();
    Config::configuration()->setFontPointSize(currentBrowser()->font().pointSizeF());
}

void TabbedBrowser::zoomOut()
{
    currentBrowser()->zoomOut();
    Config::configuration()->setFontPointSize(currentBrowser()->font().pointSizeF());
}

void TabbedBrowser::init()
{

    lastCurrentTab = 0;
    while(ui.tab->count()) {
        QWidget *page = ui.tab->widget(0);
        ui.tab->removeTab(0);
        delete page;
    }

    connect(ui.tab, SIGNAL(currentChanged(int)),
             this, SLOT(transferFocus()));

    QTabBar *tabBar = qFindChild<QTabBar*>(ui.tab);
    QStyleOptionTab opt;
    if (tabBar) {
        opt.init(tabBar);
        opt.shape = tabBar->shape();
        tabBar->setContextMenuPolicy(Qt::CustomContextMenu);
        connect(tabBar, SIGNAL(customContextMenuRequested(const QPoint&)), SLOT(openTabMenu(const QPoint&)));
    }

    // workaround for sgi style
    QPalette pal = palette();
    pal.setColor(QPalette::Active, QPalette::Button, pal.color(QPalette::Active, QPalette::Window));
    pal.setColor(QPalette::Disabled, QPalette::Button, pal.color(QPalette::Disabled, QPalette::Window));
    pal.setColor(QPalette::Inactive, QPalette::Button, pal.color(QPalette::Inactive, QPalette::Window));

    QToolButton *newTabButton = new QToolButton(this);
    ui.tab->setCornerWidget(newTabButton, Qt::TopLeftCorner);
    newTabButton->setCursor(Qt::ArrowCursor);
    newTabButton->setAutoRaise(true);
    newTabButton->setIcon(QIcon(ImageLocation + QLatin1String("addtab.png")));
    QObject::connect(newTabButton, SIGNAL(clicked()), this, SLOT(newTab()));
    newTabButton->setToolTip(tr("Add page"));

    QToolButton *closeTabButton = new QToolButton(this);
    closeTabButton->setPalette(pal);
    ui.tab->setCornerWidget(closeTabButton, Qt::TopRightCorner);
    closeTabButton->setCursor(Qt::ArrowCursor);
    closeTabButton->setAutoRaise(true);
    closeTabButton->setIcon(QIcon(ImageLocation + QLatin1String("closetab.png")));
    QObject::connect(closeTabButton, SIGNAL(clicked()), this, SLOT(closeTab()));
    closeTabButton->setToolTip(tr("Close page"));
    closeTabButton->setEnabled(false);

	QObject::connect(ui.toolClose, SIGNAL(clicked()), ui.frameFind, SLOT(hide()));
	QObject::connect(ui.toolPrevious, SIGNAL(clicked()), this, SLOT(findPrevious()));
	QObject::connect(ui.toolNext, SIGNAL(clicked()), this, SLOT(findNext()));
	QObject::connect(ui.editFind, SIGNAL(returnPressed()), this, SLOT(findNext()));
	QObject::connect(ui.editFind, SIGNAL(textEdited(const QString&)),
				     this, SLOT(find(QString)));
	ui.frameFind->setVisible(false);
	ui.labelWrapped->setVisible(false);
	autoHideTimer = new QTimer(this);
	autoHideTimer->setInterval(5000);
	autoHideTimer->setSingleShot(true);
	QObject::connect(autoHideTimer, SIGNAL(timeout()), ui.frameFind, SLOT(hide()));
}

void TabbedBrowser::updateTitle(const QString &title)
{
    ui.tab->setTabText(ui.tab->indexOf(currentBrowser()), title.trimmed());
}

void TabbedBrowser::newTab()
{
    newTab(QString());
}