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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "openeditorswindow.h"
#include "editormanager.h"
#include "editormanager_p.h"
#include "editorview.h"
#include <coreplugin/idocument.h>
#include <utils/fsengine/fileiconprovider.h>
#include <utils/hostosinfo.h>
#include <utils/qtcassert.h>
#include <utils/utilsicons.h>
#include <QFocusEvent>
#include <QHeaderView>
#include <QVBoxLayout>
#include <QScrollBar>
Q_DECLARE_METATYPE(Core::Internal::EditorView*)
Q_DECLARE_METATYPE(Core::IDocument*)
using namespace Core;
using namespace Core::Internal;
enum class Role
{
Entry = Qt::UserRole,
View = Qt::UserRole + 1
};
OpenEditorsWindow::OpenEditorsWindow(QWidget *parent) :
QFrame(parent, Qt::Popup),
m_editorList(new OpenEditorsTreeWidget(this))
{
setMinimumSize(300, 200);
m_editorList->setColumnCount(1);
m_editorList->header()->hide();
m_editorList->setIndentation(0);
m_editorList->setSelectionMode(QAbstractItemView::SingleSelection);
m_editorList->setTextElideMode(Qt::ElideMiddle);
if (Utils::HostOsInfo::isMacHost())
m_editorList->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
m_editorList->installEventFilter(this);
// We disable the frame on this list view and use a QFrame around it instead.
// This improves the look with QGTKStyle.
if (!Utils::HostOsInfo::isMacHost())
setFrameStyle(m_editorList->frameStyle());
m_editorList->setFrameStyle(QFrame::NoFrame);
auto layout = new QVBoxLayout(this);
layout->setContentsMargins(0, 0, 0, 0);
layout->addWidget(m_editorList);
connect(m_editorList, &QTreeWidget::itemClicked,
this, &OpenEditorsWindow::editorClicked);
}
void OpenEditorsWindow::selectAndHide()
{
setVisible(false);
selectEditor(m_editorList->currentItem());
}
void OpenEditorsWindow::setVisible(bool visible)
{
QWidget::setVisible(visible);
if (visible)
setFocus();
}
bool OpenEditorsWindow::eventFilter(QObject *obj, QEvent *e)
{
if (obj == m_editorList) {
if (e->type() == QEvent::KeyPress) {
auto ke = static_cast<QKeyEvent*>(e);
if (ke->key() == Qt::Key_Escape) {
setVisible(false);
return true;
}
if (ke->key() == Qt::Key_Return
|| ke->key() == Qt::Key_Enter) {
selectEditor(m_editorList->currentItem());
return true;
}
} else if (e->type() == QEvent::KeyRelease) {
auto ke = static_cast<QKeyEvent*>(e);
if (ke->modifiers() == 0
/*HACK this is to overcome some event inconsistencies between platforms*/
|| (ke->modifiers() == Qt::AltModifier
&& (ke->key() == Qt::Key_Alt || ke->key() == -1))) {
selectAndHide();
}
}
}
return QWidget::eventFilter(obj, e);
}
void OpenEditorsWindow::focusInEvent(QFocusEvent *)
{
m_editorList->setFocus();
}
void OpenEditorsWindow::selectUpDown(bool up)
{
int itemCount = m_editorList->topLevelItemCount();
if (itemCount < 2)
return;
int index = m_editorList->indexOfTopLevelItem(m_editorList->currentItem());
if (index < 0)
return;
QTreeWidgetItem *editor = nullptr;
int count = 0;
while (!editor && count < itemCount) {
if (up) {
index--;
if (index < 0)
index = itemCount-1;
} else {
index++;
if (index >= itemCount)
index = 0;
}
editor = m_editorList->topLevelItem(index);
count++;
}
if (editor) {
m_editorList->setCurrentItem(editor);
ensureCurrentVisible();
}
}
void OpenEditorsWindow::selectPreviousEditor()
{
selectUpDown(false);
}
QSize OpenEditorsTreeWidget::sizeHint() const
{
return QSize(sizeHintForColumn(0) + verticalScrollBar()->width() + frameWidth() * 2,
viewportSizeHint().height() + frameWidth() * 2);
}
QSize OpenEditorsWindow::sizeHint() const
{
return m_editorList->sizeHint() + QSize(frameWidth() * 2, frameWidth() * 2);
}
void OpenEditorsWindow::selectNextEditor()
{
selectUpDown(true);
}
void OpenEditorsWindow::setEditors(const QList<EditLocation> &globalHistory, EditorView *view)
{
m_editorList->clear();
QSet<const DocumentModel::Entry *> entriesDone;
addHistoryItems(view->editorHistory(), view, entriesDone);
// add missing editors from the global history
addHistoryItems(globalHistory, view, entriesDone);
// add purely suspended editors which are not initialised yet
addRemainingItems(view, entriesDone);
}
void OpenEditorsWindow::selectEditor(QTreeWidgetItem *item)
{
if (!item)
return;
auto entry = item->data(0, int(Role::Entry)).value<DocumentModel::Entry *>();
QTC_ASSERT(entry, return);
auto view = item->data(0, int(Role::View)).value<EditorView *>();
if (!EditorManagerPrivate::activateEditorForEntry(view, entry))
delete item;
}
void OpenEditorsWindow::editorClicked(QTreeWidgetItem *item)
{
selectEditor(item);
setFocus();
}
void OpenEditorsWindow::ensureCurrentVisible()
{
m_editorList->scrollTo(m_editorList->currentIndex(), QAbstractItemView::PositionAtCenter);
}
static DocumentModel::Entry *entryForEditLocation(const EditLocation &item)
{
if (!item.document.isNull())
return DocumentModel::entryForDocument(item.document);
return DocumentModel::entryForFilePath(item.filePath);
}
void OpenEditorsWindow::addHistoryItems(const QList<EditLocation> &history, EditorView *view,
QSet<const DocumentModel::Entry *> &entriesDone)
{
for (const EditLocation &hi : history) {
if (DocumentModel::Entry *entry = entryForEditLocation(hi))
addItem(entry, entriesDone, view);
}
}
void OpenEditorsWindow::addRemainingItems(EditorView *view,
QSet<const DocumentModel::Entry *> &entriesDone)
{
const QList<DocumentModel::Entry *> entries = DocumentModel::entries();
for (DocumentModel::Entry *entry : entries)
addItem(entry, entriesDone, view);
}
void OpenEditorsWindow::addItem(DocumentModel::Entry *entry,
QSet<const DocumentModel::Entry *> &entriesDone,
EditorView *view)
{
if (entriesDone.contains(entry))
return;
entriesDone.insert(entry);
QString title = entry->displayName();
QTC_ASSERT(!title.isEmpty(), return);
auto item = new QTreeWidgetItem();
if (entry->document->isModified())
title += tr("*");
item->setIcon(0, !entry->fileName().isEmpty() && entry->document->isFileReadOnly()
? DocumentModel::lockedIcon() : Utils::FileIconProvider::icon(entry->fileName()));
item->setText(0, title);
item->setToolTip(0, entry->fileName().toString());
item->setData(0, int(Role::Entry), QVariant::fromValue(entry));
item->setData(0, int(Role::View), QVariant::fromValue(view));
item->setTextAlignment(0, Qt::AlignLeft);
m_editorList->addTopLevelItem(item);
if (m_editorList->topLevelItemCount() == 1)
m_editorList->setCurrentItem(item);
}
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