kdelibs/kdeui/dialogs/kshortcutseditor.cpp

/*
    This file is part of the KDE libraries
    Copyright (C) 2024 Ivailo Monev <xakepa10@gmail.com>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License version 2, as published by the Free Software Foundation.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include "kshortcutseditor.h"

#include <QHBoxLayout>
#include <QHeaderView>
#include <QTreeWidget>

#include "kaction.h"
#include "kaction_p.h"
#include "kiconloader.h"
#include "kactioncollection.h"
#include "kkeysequencewidget.h"
#include "kaboutdata.h"
#include "kconfiggroup.h"
#include "kglobal.h"
#include "klocale.h"
#include "kdebug.h"

class KShortcutsEditorPrivate
{
public:
    KShortcutsEditorPrivate();

    void init(KShortcutsEditor *parent, const KShortcutsEditor::ActionTypes actionTypes,
              const KShortcutsEditor::LetterShortcuts letterShortcuts);

    void _k_slotKeySequenceChanged();

    KShortcutsEditor* parent;
    KShortcutsEditor::ActionTypes actiontypes;
    bool allowlettershortcuts;
    bool modified;
    QHBoxLayout* layout;
    QTreeWidget* treewidget;
    QList<KActionCollection*> actioncollections;
};

KShortcutsEditorPrivate::KShortcutsEditorPrivate()
    : parent(nullptr),
    actiontypes(KShortcutsEditor::AllActions),
    allowlettershortcuts(true),
    modified(false),
    layout(nullptr),
    treewidget(nullptr)
{
}

void KShortcutsEditorPrivate::init(KShortcutsEditor *_parent,
                                   const KShortcutsEditor::ActionTypes _actiontypes,
                                   const KShortcutsEditor::LetterShortcuts _lettershortcuts)
{
    parent = _parent;
    actiontypes = _actiontypes;
    allowlettershortcuts = (_lettershortcuts == KShortcutsEditor::LetterShortcutsAllowed);

    layout = new QHBoxLayout(parent);
    parent->setLayout(layout);

    treewidget = new QTreeWidget(parent);
    treewidget->setColumnCount(3);
    QStringList treeheaders = QStringList()
        << i18n("Collection")
        << i18n("Local")
        << i18n("Global");
    treewidget->setHeaderLabels(treeheaders);
    treewidget->setRootIsDecorated(true);
    QHeaderView* treeheader = treewidget->header();
    treeheader->setMovable(false);
    treeheader->setStretchLastSection(false);
    treeheader->setResizeMode(0, QHeaderView::Stretch);
    treeheader->setResizeMode(1, QHeaderView::Stretch);
    treeheader->setResizeMode(2, QHeaderView::Stretch);
    treeheader->setSectionHidden(1, !(actiontypes & KShortcutsEditor::LocalAction));
    treeheader->setSectionHidden(2, !(actiontypes & KShortcutsEditor::GlobalAction));

    layout->addWidget(treewidget);
}

void KShortcutsEditorPrivate::_k_slotKeySequenceChanged()
{
    modified = true;
    emit parent->keyChange();
}


KShortcutsEditor::KShortcutsEditor(KActionCollection *collection, QWidget *parent,
                                   ActionTypes actionTypes, LetterShortcuts allowLetterShortcuts)
    : QWidget(parent),
    d(new KShortcutsEditorPrivate())
{
    d->init(this, actionTypes, allowLetterShortcuts);
    addCollection(collection);
}

KShortcutsEditor::KShortcutsEditor(QWidget *parent, ActionTypes actionTypes,
                                   LetterShortcuts allowLetterShortcuts)
    : QWidget(parent),
    d(new KShortcutsEditorPrivate())
{
    d->init(this, actionTypes, allowLetterShortcuts);
}

KShortcutsEditor::~KShortcutsEditor()
{
    delete d;
}

bool KShortcutsEditor::isModified() const
{
    return d->modified;
}

void KShortcutsEditor::clearCollections()
{
    d->actioncollections.clear();
    d->treewidget->clear();
}

void KShortcutsEditor::addCollection(KActionCollection *collection, const QString &title)
{
    if (collection->isEmpty()) {
        return;
    }
    d->actioncollections.append(collection);

    const KAboutData* aboutdata = collection->componentData().aboutData();
    QString collectionname = title;
    QString collectionicon;
    if (collectionname.isEmpty()) {
        if (aboutdata) {
            collectionname = aboutdata->programName();
        }
    }
    if (collectionname.isEmpty()) {
        collectionname = collection->objectName();
    }
    if (collectionname.isEmpty()) {
        collectionname = QString::number(quintptr(collection));
    }
    if (aboutdata) {
        collectionicon = aboutdata->programIconName();
    }
    if (collectionicon.isEmpty() || KIconLoader::global()->iconPath(collectionicon, KIconLoader::Small, true).isEmpty()) {
        // for now assume it is a plugin collection, those usually have invalid program icon
        // (e.g. "katesearch") which why it is checked above
        collectionicon = QLatin1String("preferences-plugin");
    }

    QTreeWidgetItem* topitem = nullptr;
    for (int i = 0; i < d->treewidget->topLevelItemCount(); i++) {
        QTreeWidgetItem* treeitem = d->treewidget->topLevelItem(i);
        if (treeitem->text(0) == collectionname) {
            topitem = treeitem;
            break;
        }
    }
    if (!topitem) {
        topitem = new QTreeWidgetItem();
        topitem->setText(0, collectionname);
        topitem->setIcon(0, KIcon(collectionicon));
    }
    int rowcounter = 0;
    foreach (QAction *action, collection->actions()) {
        QTreeWidgetItem* actionitem = new QTreeWidgetItem(topitem);
        actionitem->setIcon(0, action->icon());
        actionitem->setText(0, action->iconText());
        const KAction* kaction = qobject_cast<KAction*>(action);
        if (d->actiontypes & KShortcutsEditor::LocalAction) {
            KKeySequenceWidget* localkswidget = new KKeySequenceWidget(d->treewidget);
            localkswidget->setModifierlessAllowed(d->allowlettershortcuts);
            localkswidget->setCheckForConflictsAgainst(
                KKeySequenceWidget::LocalShortcuts | KKeySequenceWidget::StandardShortcuts
            );
            localkswidget->setCheckActionCollections(d->actioncollections);
            if (kaction) {
                localkswidget->setComponentName(kaction->d->componentData.componentName());
            }
            localkswidget->setKeySequence(action->shortcut());
            connect(
                localkswidget, SIGNAL(keySequenceChanged(QKeySequence)),
                this, SLOT(_k_slotKeySequenceChanged())
            );
            d->treewidget->setItemWidget(actionitem, 1, localkswidget);
        }
        if (d->actiontypes & KShortcutsEditor::GlobalAction) {
            if (kaction) {
                KKeySequenceWidget* globalkswidget = new KKeySequenceWidget(d->treewidget);
                globalkswidget->setModifierlessAllowed(d->allowlettershortcuts);
                globalkswidget->setCheckForConflictsAgainst(
                    KKeySequenceWidget::LocalShortcuts | KKeySequenceWidget::GlobalShortcuts
                    | KKeySequenceWidget::StandardShortcuts
                );
                globalkswidget->setCheckActionCollections(d->actioncollections);
                if (kaction) {
                    globalkswidget->setComponentName(kaction->d->componentData.componentName());
                }
                globalkswidget->setKeySequence(kaction->globalShortcut());
                connect(
                    globalkswidget, SIGNAL(keySequenceChanged(QKeySequence)),
                    this, SLOT(_k_slotKeySequenceChanged())
                );
                d->treewidget->setItemWidget(actionitem, 2, globalkswidget);
            } else {
                kWarning() << "action is not KAction" << action;
            }
        }
        rowcounter++;
    }
    d->treewidget->addTopLevelItem(topitem);
    topitem->setExpanded(true);
}

void KShortcutsEditor::importConfiguration(KConfigBase *config)
{
    if (!config) {
        config = KGlobal::config().data();
    }

    if (d->actiontypes & KShortcutsEditor::LocalAction) {
        KConfigGroup group(config, "Shortcuts");
        foreach (KActionCollection* collection, d->actioncollections) {
            collection->readSettings(&group);
        }
    }
    if (d->actiontypes & KShortcutsEditor::GlobalAction) {
        KConfigGroup group(config, "Global Shortcuts");
        foreach (KActionCollection* collection, d->actioncollections) {
            collection->importGlobalShortcuts(&group);
        }
    }
}

void KShortcutsEditor::exportConfiguration(KConfigBase *config) const
{
    if (!config) {
        config = KGlobal::config().data();
    }

    if (d->actiontypes & KShortcutsEditor::LocalAction) {
        KConfigGroup group(config, "Shortcuts");
        foreach (KActionCollection* collection, d->actioncollections) {
            collection->writeSettings(&group, true);
        }
    }
    if (d->actiontypes & KShortcutsEditor::GlobalAction) {
        KConfigGroup group(config, "Global Shortcuts");
        foreach (KActionCollection* collection, d->actioncollections) {
            collection->exportGlobalShortcuts(&group, true);
        }
    }

    d->modified = false;
}

void KShortcutsEditor::allDefault()
{
    // TODO: implement
}

#include "moc_kshortcutseditor.cpp"