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path: root/src/addressbar/urllineedit.cpp
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/*
 * This file is part of smolbote. It's copyrighted by the contributors recorded
 * in the version control history of the file, available from its original
 * location: https://neueland.iserlohn-fortress.net/smolbote.hg
 *
 * SPDX-License-Identifier: GPL-3.0
 */

#include "urllineedit.h"
#include <QLabel>
#include <QMenu>
#include <QShortcut>
#include <QTimer>
#include <QWidgetAction>
#include <bookmarks/bookmarkswidget.h>

UrlLineEdit::UrlLineEdit(QWidget *parent)
    : QLineEdit(parent)
    , m_listView(new Completer(this))
{
    setPlaceholderText(tr("Enter address"));

    m_listView->setVisible(false);

    pageMenu_action = addAction(style()->standardIcon(QStyle::SP_DriveNetIcon), QLineEdit::LeadingPosition);
    connect(pageMenu_action, &QAction::triggered, pageMenu_action, [&]() {
        if(pageMenu_action->menu()) {
            pageMenu_action->menu()->exec(this->mapToGlobal(QPoint(0, height())));
        }
    });

    toolsMenu_action = addAction(style()->standardIcon(QStyle::SP_FileIcon), QLineEdit::TrailingPosition);
    connect(toolsMenu_action, &QAction::triggered, toolsMenu_action, [&]() {
        if(toolsMenu_action->menu()) {
            toolsMenu_action->menu()->exec(this->mapToGlobal(QPoint(width(), height())));
        }
    });

    QTextCharFormat hostnameFormat;
    hostnameFormat.setFontWeight(QFont::Bold);
    m_hostFormat.format = hostnameFormat;
}

void UrlLineEdit::setUrl(const QUrl &url)
{
    QString urlText = url.toString();
    QString domain = url.host();

    m_hostFormat.start = urlText.indexOf(domain);
    m_hostFormat.length = domain.length();

    clear();
    clearTextFormat();
    setTextFormat(m_hostFormat);
    setText(urlText);
}

void UrlLineEdit::updateCompleter(const QStringList &l)
{
    if(!m_listView->updateItems(l)) {
        m_listView->hide();
        return;
    }

    // positioning
    m_listView->setFixedWidth(width());
    m_listView->move(mapToGlobal(QPoint(0, height())));
    m_listView->show();
}

void UrlLineEdit::focusInEvent(QFocusEvent *event)
{
    clearTextFormat();

    QLineEdit::focusInEvent(event);

    // select the contents when receiving focus
    // http://stackoverflow.com/a/35725950/1054406
    // mousePressEvent triggers right after focusInEvent so text selected in focusInEvent unselects by mousePressEvent
    //QTimer::singleShot(0, this, SLOT(selectAll()));
}

void UrlLineEdit::focusOutEvent(QFocusEvent *event)
{
    if(!text().startsWith('#'))
        setUrl(QUrl::fromUserInput(text()));

    QLineEdit::focusOutEvent(event);
}

void UrlLineEdit::keyPressEvent(QKeyEvent *event)
{
    if(m_listView->keyPressed(event)) {
        int key = event->key();
        QModelIndex currentIndex = m_listView->currentIndex();

        if(key == Qt::Key::Key_Enter || key == Qt::Key_Return) {

            if(currentIndex.isValid()) {
                setText(currentIndex.data().toString());
            }
            m_listView->hide();
            event->accept();
            return;
        }
    } else if(event->key() == Qt::Key::Key_Escape) {
        clearFocus();
        event->accept();
        return;
    }

    QLineEdit::keyPressEvent(event);
}

// formatting taken from: https://forum.qt.io/topic/60962/setting-qlineedit-text-bold
void UrlLineEdit::setTextFormat(const QTextLayout::FormatRange &format)
{
    QList<QInputMethodEvent::Attribute> attributes;
    attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat, format.start, format.length, format.format));
    QInputMethodEvent ev(QString(), attributes);
    event(&ev);
}

void UrlLineEdit::clearTextFormat()
{
    setTextFormat(QTextLayout::FormatRange());
}