commandbarwidget.cpp

#include "commandbarwidget.h"
#include "utils.h"

#include <QFileDialog>
#include <QHBoxLayout>
#include <QInputDialog>
#include <QLabel>
#include <QPushButton>
#include <regex>

CommandBarWidget::CommandBarWidget(QWidget *parent)
    : QWidget{parent}
{
    QWidget *cmdBarWidget = new QWidget();

    // Command bar items
    QPushButton *fileBtn = new QPushButton("File");
    fileBtn->setToolTip("Open a file");
    fileBtn->setFixedSize(40, 20);
    QObject::connect(fileBtn,
                     &QAbstractButton::clicked,
                     this,
                     &CommandBarWidget::handleFileBtnClick);

    QPushButton *urlBtn = new QPushButton("URL");
    urlBtn->setToolTip("Open a URL");
    urlBtn->setFixedSize(40, 20);
    QObject::connect(urlBtn, &QAbstractButton::clicked, this, &CommandBarWidget::handleUrlBtnClick);

    selectedLabel = new QLabel("");
    // Allow label to get cut off if it's too long
    selectedLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);
    selectedLabel->setMinimumWidth(1);

    // Command bar layout
    QHBoxLayout *cmdBarLayout = new QHBoxLayout(cmdBarWidget);
    cmdBarLayout->setContentsMargins(10, 0, 10, 0);
    cmdBarLayout->addWidget(fileBtn);
    cmdBarLayout->addWidget(urlBtn);
    cmdBarLayout->addWidget(selectedLabel);

    setLayout(cmdBarLayout);
}

void CommandBarWidget::connectWebView(DNDWebEngineView *webView)
{
    QObject::connect(webView,
                     &DNDWebEngineView::updateCommandStatusText,
                     this,
                     &CommandBarWidget::setSelectedLabelText);
}

void CommandBarWidget::handleFileBtnClick()
{
    QString dirToOpen;

    if (!lastUsedDir.isEmpty())
        dirToOpen = lastUsedDir;
    else
        dirToOpen = QDir::homePath();

    QString fileName = QFileDialog::getOpenFileName(this, "Change file", dirToOpen);

    if (!fileName.isEmpty()) {
        if (!Utils::isUnsupportedFile(fileName)) {
            lastUsedDir = fileName;
            fileName.insert(0, "file://");
            setSelectedLabelText(fileName);
            emit newFileSelected(fileName);
            emit clearStatus();
        } else {
            emit pushStatus(QString::fromStdString("Unsupported filetype: "
                                                   + fileName.toStdString().substr(
                                                       fileName.toStdString().find_last_of("."))),
                            QString("Error"));
        }
    }
}

void CommandBarWidget::handleUrlBtnClick()
{
    bool ok;
    QString qUrl = QInputDialog::getText(this,              // Parent widget
                                         "Change URL",      // Dialog title
                                         "Enter URL",       // Label text
                                         QLineEdit::Normal, // Echo mode
                                         QString(),         // Default text
                                         &ok); // Pointer to a bool to check if OK was clicked

    if (ok && !qUrl.isEmpty()) {
        std::string url = qUrl.toStdString();

        // If there is no protocol indicator, prepend https:// and hope for the best!
        if (url.find("://") == std::string::npos)
            url.insert(0, "https://");

        if (isValidUrl(url)) {
            qUrl = QString::fromStdString(url);
            setSelectedLabelText(qUrl);
            emit newUrlSelected(qUrl);
            emit clearStatus();
        } else {
            qDebug() << "Invalid url" << QString::fromStdString(url);
        }
    }
}

void CommandBarWidget::setSelectedLabelText(const QString &newFileOrUrl)
{
    selectedLabel->setText(newFileOrUrl);
    selectedLabel->setToolTip(newFileOrUrl);
}

bool CommandBarWidget::isValidUrl(std::string url)
{
    const std::regex pattern(
        "https?:\\/\\/"
        "(www\\.)?[-a-zA-Z0-9@:%._\\+~#=]{2,256}\\.[a-z]{2,4}\\b([-a-zA-Z0-9@:%_\\+.~#?&//=]*)");

    return std::regex_match(url, pattern);
}