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qt-creator/src/plugins/qmljseditor/qmljseditor.cpp
Fawzi Mohamed 1a201626ea qmljseditor: Improve speed of QML/JS Editor for large files 
avoid using extra selections for warnings folding them into the
normal semantic update.

Extra selections impose a relatively large overhead (and need expensive
text cursor operations).
Unlike C++ Qml warnings are continuosly recomputed in the current file
of the editor, but not listed in the issue panel, unless one
explicitly triggers the qml checks.

Using the normal sematic update for warnings avoids QTextCursor
operations, and uses batched applies.

Unfortunately getting the tooltips from the additional formats instead
of using the extra selections requires private API, so Ranges are also
stored separately.

Change-log: [Qml/JS Support] Improved speed of QML/JS Editor for large files with lots of warnings.

Change-Id: I1f996231ef35d7cd77a79af58dbae2098fbbc83e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
2013-02-18 00:19:50 +01:00

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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "qmljseditor.h"
#include "qmljseditoreditable.h"
#include "qmljseditorconstants.h"
#include "qmljshighlighter.h"
#include "qmljseditorplugin.h"
#include "qmloutlinemodel.h"
#include "qmljsfindreferences.h"
#include "qmljssemanticinfoupdater.h"
#include "qmljsautocompleter.h"
#include "qmljscompletionassist.h"
#include "qmljsquickfixassist.h"
#include "qmljssemantichighlighter.h"
#include <qmljs/qmljsbind.h>
#include <qmljs/qmljsevaluate.h>
#include <qmljs/qmljsicontextpane.h>
#include <qmljs/qmljsmodelmanagerinterface.h>
#include <qmljs/qmljsutils.h>
#include <qmljstools/qmljsindenter.h>
#include <qmljstools/qmljsqtstylecodeformatter.h>
#include <coreplugin/actionmanager/actionmanager.h>
#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/id.h>
#include <coreplugin/actionmanager/command.h>
#include <coreplugin/editormanager/editormanager.h>
#include <coreplugin/icore.h>
#include <coreplugin/mimedatabase.h>
#include <extensionsystem/pluginmanager.h>
#include <texteditor/basetextdocument.h>
#include <texteditor/fontsettings.h>
#include <texteditor/tabsettings.h>
#include <texteditor/texteditorconstants.h>
#include <texteditor/texteditorsettings.h>
#include <texteditor/syntaxhighlighter.h>
#include <texteditor/refactoroverlay.h>
#include <texteditor/codeassist/genericproposal.h>
#include <texteditor/codeassist/basicproposalitemlistmodel.h>
#include <qmldesigner/qmldesignerconstants.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <utils/changeset.h>
#include <utils/uncommentselection.h>
#include <utils/qtcassert.h>
#include <utils/annotateditemdelegate.h>
#include <QFileInfo>
#include <QSignalMapper>
#include <QTimer>
#include <QScopedPointer>
#include <QTextCodec>
#include <QMenu>
#include <QComboBox>
#include <QHeaderView>
#include <QInputDialog>
#include <QToolBar>
#include <QTreeView>
enum {
UPDATE_DOCUMENT_DEFAULT_INTERVAL = 100,
UPDATE_USES_DEFAULT_INTERVAL = 150,
UPDATE_OUTLINE_INTERVAL = 500 // msecs after new semantic info has been arrived / cursor has moved
};
using namespace QmlJS;
using namespace QmlJS::AST;
using namespace QmlJSEditor;
using namespace QmlJSEditor::Internal;
using namespace QmlJSTools;
namespace {
class FindIdDeclarations: protected Visitor
{
public:
typedef QHash<QString, QList<AST::SourceLocation> > Result;
Result operator()(Document::Ptr doc)
{
_ids.clear();
_maybeIds.clear();
if (doc && doc->qmlProgram())
doc->qmlProgram()->accept(this);
return _ids;
}
protected:
QString asString(AST::UiQualifiedId *id)
{
QString text;
for (; id; id = id->next) {
if (!id->name.isEmpty())
text += id->name;
else
text += QLatin1Char('?');
if (id->next)
text += QLatin1Char('.');
}
return text;
}
void accept(AST::Node *node)
{ AST::Node::acceptChild(node, this); }
using Visitor::visit;
using Visitor::endVisit;
virtual bool visit(AST::UiScriptBinding *node)
{
if (asString(node->qualifiedId) == QLatin1String("id")) {
if (AST::ExpressionStatement *stmt = AST::cast<AST::ExpressionStatement*>(node->statement)) {
if (AST::IdentifierExpression *idExpr = AST::cast<AST::IdentifierExpression *>(stmt->expression)) {
if (!idExpr->name.isEmpty()) {
const QString &id = idExpr->name.toString();
QList<AST::SourceLocation> *locs = &_ids[id];
locs->append(idExpr->firstSourceLocation());
locs->append(_maybeIds.value(id));
_maybeIds.remove(id);
return false;
}
}
}
}
accept(node->statement);
return false;
}
virtual bool visit(AST::IdentifierExpression *node)
{
if (!node->name.isEmpty()) {
const QString &name = node->name.toString();
if (_ids.contains(name))
_ids[name].append(node->identifierToken);
else
_maybeIds[name].append(node->identifierToken);
}
return false;
}
private:
Result _ids;
Result _maybeIds;
};
class FindDeclarations: protected Visitor
{
QList<Declaration> _declarations;
int _depth;
public:
QList<Declaration> operator()(AST::Node *node)
{
_depth = -1;
_declarations.clear();
accept(node);
return _declarations;
}
protected:
using Visitor::visit;
using Visitor::endVisit;
QString asString(AST::UiQualifiedId *id)
{
QString text;
for (; id; id = id->next) {
if (!id->name.isEmpty())
text += id->name;
else
text += QLatin1Char('?');
if (id->next)
text += QLatin1Char('.');
}
return text;
}
void accept(AST::Node *node)
{ AST::Node::acceptChild(node, this); }
void init(Declaration *decl, AST::UiObjectMember *member)
{
const SourceLocation first = member->firstSourceLocation();
const SourceLocation last = member->lastSourceLocation();
decl->startLine = first.startLine;
decl->startColumn = first.startColumn;
decl->endLine = last.startLine;
decl->endColumn = last.startColumn + last.length;
}
void init(Declaration *decl, AST::ExpressionNode *expressionNode)
{
const SourceLocation first = expressionNode->firstSourceLocation();
const SourceLocation last = expressionNode->lastSourceLocation();
decl->startLine = first.startLine;
decl->startColumn = first.startColumn;
decl->endLine = last.startLine;
decl->endColumn = last.startColumn + last.length;
}
virtual bool visit(AST::UiObjectDefinition *node)
{
++_depth;
Declaration decl;
init(&decl, node);
decl.text.fill(QLatin1Char(' '), _depth);
if (node->qualifiedTypeNameId)
decl.text.append(asString(node->qualifiedTypeNameId));
else
decl.text.append(QLatin1Char('?'));
_declarations.append(decl);
return true; // search for more bindings
}
virtual void endVisit(AST::UiObjectDefinition *)
{
--_depth;
}
virtual bool visit(AST::UiObjectBinding *node)
{
++_depth;
Declaration decl;
init(&decl, node);
decl.text.fill(QLatin1Char(' '), _depth);
decl.text.append(asString(node->qualifiedId));
decl.text.append(QLatin1String(": "));
if (node->qualifiedTypeNameId)
decl.text.append(asString(node->qualifiedTypeNameId));
else
decl.text.append(QLatin1Char('?'));
_declarations.append(decl);
return true; // search for more bindings
}
virtual void endVisit(AST::UiObjectBinding *)
{
--_depth;
}
virtual bool visit(AST::UiScriptBinding *)
{
++_depth;
#if 0 // ### ignore script bindings for now.
Declaration decl;
init(&decl, node);
decl.text.fill(QLatin1Char(' '), _depth);
decl.text.append(asString(node->qualifiedId));
_declarations.append(decl);
#endif
return false; // more more bindings in this subtree.
}
virtual void endVisit(AST::UiScriptBinding *)
{
--_depth;
}
virtual bool visit(AST::FunctionExpression *)
{
return false;
}
virtual bool visit(AST::FunctionDeclaration *ast)
{
if (ast->name.isEmpty())
return false;
Declaration decl;
init(&decl, ast);
decl.text.fill(QLatin1Char(' '), _depth);
decl.text += ast->name;
decl.text += QLatin1Char('(');
for (FormalParameterList *it = ast->formals; it; it = it->next) {
if (!it->name.isEmpty())
decl.text += it->name;
if (it->next)
decl.text += QLatin1String(", ");
}
decl.text += QLatin1Char(')');
_declarations.append(decl);
return false;
}
virtual bool visit(AST::VariableDeclaration *ast)
{
if (ast->name.isEmpty())
return false;
Declaration decl;
decl.text.fill(QLatin1Char(' '), _depth);
decl.text += ast->name;
const SourceLocation first = ast->identifierToken;
decl.startLine = first.startLine;
decl.startColumn = first.startColumn;
decl.endLine = first.startLine;
decl.endColumn = first.startColumn + first.length;
_declarations.append(decl);
return false;
}
};
class CreateRanges: protected AST::Visitor
{
QTextDocument *_textDocument;
QList<Range> _ranges;
public:
QList<Range> operator()(QTextDocument *textDocument, Document::Ptr doc)
{
_textDocument = textDocument;
_ranges.clear();
if (doc && doc->ast() != 0)
doc->ast()->accept(this);
return _ranges;
}
protected:
using AST::Visitor::visit;
virtual bool visit(AST::UiObjectBinding *ast)
{
if (ast->initializer && ast->initializer->lbraceToken.length)
_ranges.append(createRange(ast, ast->initializer));
return true;
}
virtual bool visit(AST::UiObjectDefinition *ast)
{
if (ast->initializer && ast->initializer->lbraceToken.length)
_ranges.append(createRange(ast, ast->initializer));
return true;
}
virtual bool visit(AST::FunctionExpression *ast)
{
_ranges.append(createRange(ast));
return true;
}
virtual bool visit(AST::FunctionDeclaration *ast)
{
_ranges.append(createRange(ast));
return true;
}
virtual bool visit(AST::UiScriptBinding *ast)
{
if (AST::Block *block = AST::cast<AST::Block *>(ast->statement))
_ranges.append(createRange(ast, block));
return true;
}
Range createRange(AST::UiObjectMember *member, AST::UiObjectInitializer *ast)
{
return createRange(member, member->firstSourceLocation(), ast->rbraceToken);
}
Range createRange(AST::FunctionExpression *ast)
{
return createRange(ast, ast->lbraceToken, ast->rbraceToken);
}
Range createRange(AST::UiScriptBinding *ast, AST::Block *block)
{
return createRange(ast, block->lbraceToken, block->rbraceToken);
}
Range createRange(AST::Node *ast, AST::SourceLocation start, AST::SourceLocation end)
{
Range range;
range.ast = ast;
range.begin = QTextCursor(_textDocument);
range.begin.setPosition(start.begin());
range.end = QTextCursor(_textDocument);
range.end.setPosition(end.end());
return range;
}
};
} // end of anonymous namespace
QmlJSTextEditorWidget::QmlJSTextEditorWidget(QWidget *parent) :
TextEditor::BaseTextEditorWidget(parent),
m_outlineCombo(0),
m_outlineModel(new QmlOutlineModel(this)),
m_modelManager(0),
m_futureSemanticInfoRevision(0),
m_contextPane(0),
m_findReferences(new FindReferences(this)),
m_semanticHighlighter(new SemanticHighlighter(this))
{
m_semanticInfoUpdater = new SemanticInfoUpdater(this);
m_semanticInfoUpdater->start();
setParenthesesMatchingEnabled(true);
setMarksVisible(true);
setCodeFoldingSupported(true);
setIndenter(new Indenter);
setAutoCompleter(new AutoCompleter);
m_updateDocumentTimer = new QTimer(this);
m_updateDocumentTimer->setInterval(UPDATE_DOCUMENT_DEFAULT_INTERVAL);
m_updateDocumentTimer->setSingleShot(true);
connect(m_updateDocumentTimer, SIGNAL(timeout()), this, SLOT(reparseDocumentNow()));
m_updateUsesTimer = new QTimer(this);
m_updateUsesTimer->setInterval(UPDATE_USES_DEFAULT_INTERVAL);
m_updateUsesTimer->setSingleShot(true);
connect(m_updateUsesTimer, SIGNAL(timeout()), this, SLOT(updateUsesNow()));
m_updateSemanticInfoTimer = new QTimer(this);
m_updateSemanticInfoTimer->setInterval(UPDATE_DOCUMENT_DEFAULT_INTERVAL);
m_updateSemanticInfoTimer->setSingleShot(true);
connect(m_updateSemanticInfoTimer, SIGNAL(timeout()), this, SLOT(updateSemanticInfoNow()));
connect(this, SIGNAL(textChanged()), this, SLOT(reparseDocument()));
connect(this, SIGNAL(textChanged()), this, SLOT(updateUses()));
connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateUses()));
m_updateOutlineTimer = new QTimer(this);
m_updateOutlineTimer->setInterval(UPDATE_OUTLINE_INTERVAL);
m_updateOutlineTimer->setSingleShot(true);
connect(m_updateOutlineTimer, SIGNAL(timeout()), this, SLOT(updateOutlineNow()));
m_updateOutlineIndexTimer = new QTimer(this);
m_updateOutlineIndexTimer->setInterval(UPDATE_OUTLINE_INTERVAL);
m_updateOutlineIndexTimer->setSingleShot(true);
connect(m_updateOutlineIndexTimer, SIGNAL(timeout()), this, SLOT(updateOutlineIndexNow()));
m_cursorPositionTimer = new QTimer(this);
m_cursorPositionTimer->setInterval(UPDATE_OUTLINE_INTERVAL);
m_cursorPositionTimer->setSingleShot(true);
connect(m_cursorPositionTimer, SIGNAL(timeout()), this, SLOT(updateCursorPositionNow()));
baseTextDocument()->setSyntaxHighlighter(new Highlighter(document()));
baseTextDocument()->setCodec(QTextCodec::codecForName("UTF-8")); // qml files are defined to be utf-8
m_modelManager = QmlJS::ModelManagerInterface::instance();
m_contextPane = ExtensionSystem::PluginManager::getObject<QmlJS::IContextPane>();
if (m_contextPane) {
connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(onCursorPositionChanged()));
connect(m_contextPane, SIGNAL(closed()), this, SLOT(showTextMarker()));
}
m_oldCursorPosition = -1;
if (m_modelManager) {
connect(m_modelManager, SIGNAL(documentUpdated(QmlJS::Document::Ptr)),
this, SLOT(onDocumentUpdated(QmlJS::Document::Ptr)));
connect(m_modelManager, SIGNAL(libraryInfoUpdated(QString,QmlJS::LibraryInfo)),
this, SLOT(updateSemanticInfo()));
connect(this->document(), SIGNAL(modificationChanged(bool)), this, SLOT(modificationChanged(bool)));
}
connect(m_semanticInfoUpdater, SIGNAL(updated(QmlJSTools::SemanticInfo)),
this, SLOT(acceptNewSemanticInfo(QmlJSTools::SemanticInfo)));
connect(this, SIGNAL(refactorMarkerClicked(TextEditor::RefactorMarker)),
SLOT(onRefactorMarkerClicked(TextEditor::RefactorMarker)));
setRequestMarkEnabled(true);
}
QmlJSTextEditorWidget::~QmlJSTextEditorWidget()
{
hideContextPane();
m_semanticInfoUpdater->abort();
m_semanticInfoUpdater->wait();
}
SemanticInfo QmlJSTextEditorWidget::semanticInfo() const
{
return m_semanticInfo;
}
int QmlJSTextEditorWidget::editorRevision() const
{
return document()->revision();
}
QVector<QTextLayout::FormatRange> QmlJSTextEditorWidget::diagnosticRanges() const
{
// this exist mainly because getting the tooltip from the additional formats
// requires the use of private api (you have to extract it from
// cursor.block().layout()->specialInfo.addFormatIndex (for the .format through .formats.at()),
// and use .addFormat to get the range). So a separate bookkeeping is used.
return m_diagnosticRanges;
}
bool QmlJSTextEditorWidget::isSemanticInfoOutdated() const
{
if (m_semanticInfo.revision() != editorRevision())
return true;
return false;
}
QmlOutlineModel *QmlJSTextEditorWidget::outlineModel() const
{
return m_outlineModel;
}
QModelIndex QmlJSTextEditorWidget::outlineModelIndex()
{
if (!m_outlineModelIndex.isValid()) {
m_outlineModelIndex = indexForPosition(position());
emit outlineModelIndexChanged(m_outlineModelIndex);
}
return m_outlineModelIndex;
}
Core::IEditor *QmlJSEditorEditable::duplicate(QWidget *parent)
{
QmlJSTextEditorWidget *newEditor = new QmlJSTextEditorWidget(parent);
newEditor->duplicateFrom(editorWidget());
QmlJSEditorPlugin::instance()->initializeEditor(newEditor);
return newEditor->editor();
}
Core::Id QmlJSEditorEditable::id() const
{
return Core::Id(QmlJSEditor::Constants::C_QMLJSEDITOR_ID);
}
bool QmlJSEditorEditable::open(QString *errorString, const QString &fileName, const QString &realFileName)
{
bool b = TextEditor::BaseTextEditor::open(errorString, fileName, realFileName);
editorWidget()->setMimeType(Core::ICore::mimeDatabase()->findByFile(QFileInfo(fileName)).type());
return b;
}
void QmlJSTextEditorWidget::reparseDocument()
{
m_updateDocumentTimer->start();
}
void QmlJSTextEditorWidget::reparseDocumentNow()
{
m_updateDocumentTimer->stop();
const QString fileName = editorDocument()->fileName();
m_modelManager->updateSourceFiles(QStringList() << fileName, false);
}
static void appendExtraSelectionsForMessages(
QList<QTextEdit::ExtraSelection> *selections,
const QList<DiagnosticMessage> &messages,
const QTextDocument *document)
{
foreach (const DiagnosticMessage &d, messages) {
const int line = d.loc.startLine;
const int column = qMax(1U, d.loc.startColumn);
QTextEdit::ExtraSelection sel;
QTextCursor c(document->findBlockByNumber(line - 1));
sel.cursor = c;
sel.cursor.setPosition(c.position() + column - 1);
if (d.loc.length == 0) {
if (sel.cursor.atBlockEnd())
sel.cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::KeepAnchor);
else
sel.cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
} else {
sel.cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, d.loc.length);
}
if (d.isWarning())
sel.format.setUnderlineColor(Qt::darkYellow);
else
sel.format.setUnderlineColor(Qt::red);
sel.format.setUnderlineStyle(QTextCharFormat::WaveUnderline);
sel.format.setToolTip(d.message);
selections->append(sel);
}
}
void QmlJSTextEditorWidget::onDocumentUpdated(QmlJS::Document::Ptr doc)
{
if (editorDocument()->fileName() != doc->fileName())
return;
if (doc->editorRevision() != editorRevision()) {
// Maybe a dependency changed and our semantic info is now outdated.
// Ignore 0-revision documents though, we get them when a file is initially opened
// in an editor.
if (doc->editorRevision() != 0)
updateSemanticInfo();
return;
}
//qDebug() << doc->fileName() << "was reparsed";
if (doc->ast()) {
// got a correctly parsed (or recovered) file.
m_futureSemanticInfoRevision = doc->editorRevision();
m_semanticInfoUpdater->update(doc, m_modelManager->snapshot());
setExtraSelections(CodeWarningsSelection, QList<QTextEdit::ExtraSelection>());
} else {
// show parsing errors
QList<QTextEdit::ExtraSelection> selections;
appendExtraSelectionsForMessages(&selections, doc->diagnosticMessages(), document());
setExtraSelections(CodeWarningsSelection, selections);
}
}
void QmlJSTextEditorWidget::modificationChanged(bool changed)
{
if (!changed && m_modelManager)
m_modelManager->fileChangedOnDisk(editorDocument()->fileName());
}
void QmlJSTextEditorWidget::jumpToOutlineElement(int /*index*/)
{
QModelIndex index = m_outlineCombo->view()->currentIndex();
AST::SourceLocation location = m_outlineModel->sourceLocation(index);
if (!location.isValid())
return;
Core::EditorManager *editorManager = Core::EditorManager::instance();
editorManager->cutForwardNavigationHistory();
editorManager->addCurrentPositionToNavigationHistory();
QTextCursor cursor = textCursor();
cursor.setPosition(location.offset);
setTextCursor(cursor);
setFocus();
}
void QmlJSTextEditorWidget::updateOutlineNow()
{
if (!m_semanticInfo.document)
return;
if (m_semanticInfo.document->editorRevision() != editorRevision()) {
m_updateOutlineTimer->start();
return;
}
m_outlineModel->update(m_semanticInfo);
QTreeView *treeView = static_cast<QTreeView*>(m_outlineCombo->view());
treeView->expandAll();
updateOutlineIndexNow();
}
void QmlJSTextEditorWidget::updateOutlineIndexNow()
{
if (m_updateOutlineTimer->isActive())
return; // updateOutlineNow will call this function soon anyway
if (!m_outlineModel->document())
return;
if (m_outlineModel->document()->editorRevision() != editorRevision()) {
m_updateOutlineIndexTimer->start();
return;
}
m_outlineModelIndex = QModelIndex(); // invalidate
QModelIndex comboIndex = outlineModelIndex();
if (comboIndex.isValid()) {
bool blocked = m_outlineCombo->blockSignals(true);
// There is no direct way to select a non-root item
m_outlineCombo->setRootModelIndex(comboIndex.parent());
m_outlineCombo->setCurrentIndex(comboIndex.row());
m_outlineCombo->setRootModelIndex(QModelIndex());
m_outlineCombo->blockSignals(blocked);
}
}
class QtQuickToolbarMarker {};
Q_DECLARE_METATYPE(QtQuickToolbarMarker)
template <class T>
static QList<TextEditor::RefactorMarker> removeMarkersOfType(const QList<TextEditor::RefactorMarker> &markers)
{
QList<TextEditor::RefactorMarker> result;
foreach (const TextEditor::RefactorMarker &marker, markers) {
if (!marker.data.canConvert<T>())
result += marker;
}
return result;
}
void QmlJSTextEditorWidget::updateCursorPositionNow()
{
if (m_contextPane && document() && semanticInfo().isValid()
&& document()->revision() == semanticInfo().document->editorRevision())
{
Node *oldNode = m_semanticInfo.declaringMemberNoProperties(m_oldCursorPosition);
Node *newNode = m_semanticInfo.declaringMemberNoProperties(position());
if (oldNode != newNode && m_oldCursorPosition != -1)
m_contextPane->apply(editor(), semanticInfo().document, 0, newNode, false);
if (m_contextPane->isAvailable(editor(), semanticInfo().document, newNode) &&
!m_contextPane->widget()->isVisible()) {
QList<TextEditor::RefactorMarker> markers = removeMarkersOfType<QtQuickToolbarMarker>(refactorMarkers());
if (UiObjectMember *m = newNode->uiObjectMemberCast()) {
const int start = qualifiedTypeNameId(m)->identifierToken.begin();
for (UiQualifiedId *q = qualifiedTypeNameId(m); q; q = q->next) {
if (! q->next) {
const int end = q->identifierToken.end();
if (position() >= start && position() <= end) {
TextEditor::RefactorMarker marker;
QTextCursor tc(document());
tc.setPosition(end);
marker.cursor = tc;
marker.tooltip = tr("Show Qt Quick ToolBar");
marker.data = QVariant::fromValue(QtQuickToolbarMarker());
markers.append(marker);
}
}
}
}
setRefactorMarkers(markers);
} else if (oldNode != newNode) {
setRefactorMarkers(removeMarkersOfType<QtQuickToolbarMarker>(refactorMarkers()));
}
m_oldCursorPosition = position();
setSelectedElements();
}
}
void QmlJSTextEditorWidget::showTextMarker()
{
m_oldCursorPosition = -1;
updateCursorPositionNow();
}
void QmlJSTextEditorWidget::updateUses()
{
if (m_semanticHighlighter->startRevision() != editorRevision())
m_semanticHighlighter->cancel();
m_updateUsesTimer->start();
}
void QmlJSTextEditorWidget::updateUsesNow()
{
if (isSemanticInfoOutdated()) {
updateUses();
return;
}
m_updateUsesTimer->stop();
QList<QTextEdit::ExtraSelection> selections;
foreach (const AST::SourceLocation &loc, m_semanticInfo.idLocations.value(wordUnderCursor())) {
if (! loc.isValid())
continue;
QTextEdit::ExtraSelection sel;
sel.format = m_occurrencesFormat;
sel.cursor = textCursor();
sel.cursor.setPosition(loc.begin());
sel.cursor.setPosition(loc.end(), QTextCursor::KeepAnchor);
selections.append(sel);
}
setExtraSelections(CodeSemanticsSelection, selections);
}
class SelectedElement: protected Visitor
{
unsigned m_cursorPositionStart;
unsigned m_cursorPositionEnd;
QList<UiObjectMember *> m_selectedMembers;
public:
SelectedElement()
: m_cursorPositionStart(0), m_cursorPositionEnd(0) {}
QList<UiObjectMember *> operator()(const Document::Ptr &doc, unsigned startPosition, unsigned endPosition)
{
m_cursorPositionStart = startPosition;
m_cursorPositionEnd = endPosition;
m_selectedMembers.clear();
Node::accept(doc->qmlProgram(), this);
return m_selectedMembers;
}
protected:
bool isSelectable(UiObjectMember *member) const
{
UiQualifiedId *id = qualifiedTypeNameId(member);
if (id) {
const QStringRef &name = id->name;
if (!name.isEmpty() && name.at(0).isUpper())
return true;
}
return false;
}
inline bool isIdBinding(UiObjectMember *member) const
{
if (UiScriptBinding *script = cast<UiScriptBinding *>(member)) {
if (! script->qualifiedId)
return false;
else if (script->qualifiedId->name.isEmpty())
return false;
else if (script->qualifiedId->next)
return false;
const QStringRef &propertyName = script->qualifiedId->name;
if (propertyName == QLatin1String("id"))
return true;
}
return false;
}
inline bool containsCursor(unsigned begin, unsigned end)
{
return m_cursorPositionStart >= begin && m_cursorPositionEnd <= end;
}
inline bool intersectsCursor(unsigned begin, unsigned end)
{
return (m_cursorPositionEnd >= begin && m_cursorPositionStart <= end);
}
inline bool isRangeSelected() const
{
return (m_cursorPositionStart != m_cursorPositionEnd);
}
void postVisit(Node *ast)
{
if (!isRangeSelected() && !m_selectedMembers.isEmpty())
return; // nothing to do, we already have the results.
if (UiObjectMember *member = ast->uiObjectMemberCast()) {
unsigned begin = member->firstSourceLocation().begin();
unsigned end = member->lastSourceLocation().end();
if ((isRangeSelected() && intersectsCursor(begin, end))
|| (!isRangeSelected() && containsCursor(begin, end)))
{
if (initializerOfObject(member) && isSelectable(member)) {
m_selectedMembers << member;
// move start towards end; this facilitates multiselection so that root is usually ignored.
m_cursorPositionStart = qMin(end, m_cursorPositionEnd);
}
}
}
}
};
void QmlJSTextEditorWidget::setSelectedElements()
{
if (!receivers(SIGNAL(selectedElementsChanged(QList<QmlJS::AST::UiObjectMember*>,QString))))
return;
QTextCursor tc = textCursor();
QString wordAtCursor;
QList<UiObjectMember *> offsets;
unsigned startPos;
unsigned endPos;
if (tc.hasSelection()) {
startPos = tc.selectionStart();
endPos = tc.selectionEnd();
} else {
tc.movePosition(QTextCursor::StartOfWord);
tc.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
startPos = textCursor().position();
endPos = textCursor().position();
}
if (m_semanticInfo.isValid()) {
SelectedElement selectedMembers;
QList<UiObjectMember *> members = selectedMembers(m_semanticInfo.document,
startPos, endPos);
if (!members.isEmpty()) {
foreach (UiObjectMember *m, members) {
offsets << m;
}
}
}
wordAtCursor = tc.selectedText();
emit selectedElementsChanged(offsets, wordAtCursor);
}
void QmlJSTextEditorWidget::updateFileName()
{
}
void QmlJSTextEditorWidget::setFontSettings(const TextEditor::FontSettings &fs)
{
TextEditor::BaseTextEditorWidget::setFontSettings(fs);
Highlighter *highlighter = qobject_cast<Highlighter*>(baseTextDocument()->syntaxHighlighter());
if (!highlighter)
return;
highlighter->setFormats(fs.toTextCharFormats(highlighterFormatCategories()));
highlighter->rehighlight();
m_occurrencesFormat = fs.toTextCharFormat(TextEditor::C_OCCURRENCES);
m_occurrencesUnusedFormat = fs.toTextCharFormat(TextEditor::C_OCCURRENCES_UNUSED);
m_occurrencesUnusedFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline);
m_occurrencesUnusedFormat.setUnderlineColor(m_occurrencesUnusedFormat.foreground().color());
m_occurrencesUnusedFormat.clearForeground();
m_occurrencesUnusedFormat.setToolTip(tr("Unused variable"));
m_occurrenceRenameFormat = fs.toTextCharFormat(TextEditor::C_OCCURRENCES_RENAME);
// only set the background, we do not want to modify foreground properties set by the syntax highlighter or the link
m_occurrencesFormat.clearForeground();
m_occurrenceRenameFormat.clearForeground();
m_semanticHighlighter->updateFontSettings(fs);
}
QString QmlJSTextEditorWidget::wordUnderCursor() const
{
QTextCursor tc = textCursor();
const QChar ch = characterAt(tc.position() - 1);
// make sure that we're not at the start of the next word.
if (ch.isLetterOrNumber() || ch == QLatin1Char('_'))
tc.movePosition(QTextCursor::Left);
tc.movePosition(QTextCursor::StartOfWord);
tc.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
const QString word = tc.selectedText();
return word;
}
bool QmlJSTextEditorWidget::isClosingBrace(const QList<Token> &tokens) const
{
if (tokens.size() == 1) {
const Token firstToken = tokens.first();
return firstToken.is(Token::RightBrace) || firstToken.is(Token::RightBracket);
}
return false;
}
TextEditor::BaseTextEditor *QmlJSTextEditorWidget::createEditor()
{
QmlJSEditorEditable *editable = new QmlJSEditorEditable(this);
createToolBar(editable);
return editable;
}
void QmlJSTextEditorWidget::createToolBar(QmlJSEditorEditable *editor)
{
m_outlineCombo = new QComboBox;
m_outlineCombo->setMinimumContentsLength(22);
m_outlineCombo->setModel(m_outlineModel);
QTreeView *treeView = new QTreeView;
Utils::AnnotatedItemDelegate *itemDelegate = new Utils::AnnotatedItemDelegate(this);
itemDelegate->setDelimiter(QLatin1String(" "));
itemDelegate->setAnnotationRole(QmlOutlineModel::AnnotationRole);
treeView->setItemDelegateForColumn(0, itemDelegate);
treeView->header()->hide();
treeView->setItemsExpandable(false);
treeView->setRootIsDecorated(false);
m_outlineCombo->setView(treeView);
treeView->expandAll();
//m_outlineCombo->setSizeAdjustPolicy(QComboBox::AdjustToContents);
// Make the combo box prefer to expand
QSizePolicy policy = m_outlineCombo->sizePolicy();
policy.setHorizontalPolicy(QSizePolicy::Expanding);
m_outlineCombo->setSizePolicy(policy);
connect(m_outlineCombo, SIGNAL(activated(int)), this, SLOT(jumpToOutlineElement(int)));
connect(this, SIGNAL(cursorPositionChanged()), m_updateOutlineIndexTimer, SLOT(start()));
connect(editorDocument(), SIGNAL(changed()), this, SLOT(updateFileName()));
editor->insertExtraToolBarWidget(TextEditor::BaseTextEditor::Left, m_outlineCombo);
}
TextEditor::BaseTextEditorWidget::Link QmlJSTextEditorWidget::findLinkAt(const QTextCursor &cursor, bool /*resolveTarget*/)
{
const SemanticInfo semanticInfo = m_semanticInfo;
if (! semanticInfo.isValid())
return Link();
const unsigned cursorPosition = cursor.position();
AST::Node *node = semanticInfo.astNodeAt(cursorPosition);
QTC_ASSERT(node, return Link());
if (AST::UiImport *importAst = cast<AST::UiImport *>(node)) {
// if it's a file import, link to the file
foreach (const ImportInfo &import, semanticInfo.document->bind()->imports()) {
if (import.ast() == importAst && import.type() == ImportInfo::FileImport) {
BaseTextEditorWidget::Link link(import.path());
link.linkTextStart = importAst->firstSourceLocation().begin();
link.linkTextEnd = importAst->lastSourceLocation().end();
return link;
}
}
return Link();
}
// string literals that could refer to a file link to them
if (StringLiteral *literal = cast<StringLiteral *>(node)) {
const QString &text = literal->value.toString();
BaseTextEditorWidget::Link link;
link.linkTextStart = literal->literalToken.begin();
link.linkTextEnd = literal->literalToken.end();
if (semanticInfo.snapshot.document(text)) {
link.targetFileName = text;
return link;
}
const QString relative = QString::fromLatin1("%1/%2").arg(
semanticInfo.document->path(),
text);
if (semanticInfo.snapshot.document(relative)) {
link.targetFileName = relative;
return link;
}
}
const ScopeChain scopeChain = semanticInfo.scopeChain(semanticInfo.rangePath(cursorPosition));
Evaluate evaluator(&scopeChain);
const Value *value = evaluator.reference(node);
QString fileName;
int line = 0, column = 0;
if (! (value && value->getSourceLocation(&fileName, &line, &column)))
return Link();
BaseTextEditorWidget::Link link;
link.targetFileName = fileName;
link.targetLine = line;
link.targetColumn = column - 1; // adjust the column
if (AST::UiQualifiedId *q = AST::cast<AST::UiQualifiedId *>(node)) {
for (AST::UiQualifiedId *tail = q; tail; tail = tail->next) {
if (! tail->next && cursorPosition <= tail->identifierToken.end()) {
link.linkTextStart = tail->identifierToken.begin();
link.linkTextEnd = tail->identifierToken.end();
return link;
}
}
} else if (AST::IdentifierExpression *id = AST::cast<AST::IdentifierExpression *>(node)) {
link.linkTextStart = id->firstSourceLocation().begin();
link.linkTextEnd = id->lastSourceLocation().end();
return link;
} else if (AST::FieldMemberExpression *mem = AST::cast<AST::FieldMemberExpression *>(node)) {
link.linkTextStart = mem->lastSourceLocation().begin();
link.linkTextEnd = mem->lastSourceLocation().end();
return link;
}
return Link();
}
void QmlJSTextEditorWidget::findUsages()
{
m_findReferences->findUsages(editorDocument()->fileName(), textCursor().position());
}
void QmlJSTextEditorWidget::renameUsages()
{
m_findReferences->renameUsages(editorDocument()->fileName(), textCursor().position());
}
void QmlJSTextEditorWidget::showContextPane()
{
if (m_contextPane && m_semanticInfo.isValid()) {
Node *newNode = m_semanticInfo.declaringMemberNoProperties(position());
ScopeChain scopeChain = m_semanticInfo.scopeChain(m_semanticInfo.rangePath(position()));
m_contextPane->apply(editor(), m_semanticInfo.document,
&scopeChain,
newNode, false, true);
m_oldCursorPosition = position();
setRefactorMarkers(removeMarkersOfType<QtQuickToolbarMarker>(refactorMarkers()));
}
}
void QmlJSTextEditorWidget::performQuickFix(int index)
{
TextEditor::QuickFixOperation::Ptr op = m_quickFixes.at(index);
op->perform();
}
void QmlJSTextEditorWidget::contextMenuEvent(QContextMenuEvent *e)
{
QMenu *menu = new QMenu();
QMenu *refactoringMenu = new QMenu(tr("Refactoring"), menu);
QSignalMapper mapper;
connect(&mapper, SIGNAL(mapped(int)), this, SLOT(performQuickFix(int)));
if (! isSemanticInfoOutdated()) {
TextEditor::IAssistInterface *interface =
createAssistInterface(TextEditor::QuickFix, TextEditor::ExplicitlyInvoked);
if (interface) {
QScopedPointer<TextEditor::IAssistProcessor> processor(
QmlJSEditorPlugin::instance()->quickFixAssistProvider()->createProcessor());
QScopedPointer<TextEditor::IAssistProposal> proposal(processor->perform(interface));
if (!proposal.isNull()) {
TextEditor::BasicProposalItemListModel *model =
static_cast<TextEditor::BasicProposalItemListModel *>(proposal->model());
for (int index = 0; index < model->size(); ++index) {
TextEditor::BasicProposalItem *item =
static_cast<TextEditor::BasicProposalItem *>(model->proposalItem(index));
TextEditor::QuickFixOperation::Ptr op =
item->data().value<TextEditor::QuickFixOperation::Ptr>();
m_quickFixes.append(op);
QAction *action = refactoringMenu->addAction(op->description());
mapper.setMapping(action, index);
connect(action, SIGNAL(triggered()), &mapper, SLOT(map()));
}
delete model;
}
}
}
refactoringMenu->setEnabled(!refactoringMenu->isEmpty());
if (Core::ActionContainer *mcontext = Core::ActionManager::actionContainer(QmlJSEditor::Constants::M_CONTEXT)) {
QMenu *contextMenu = mcontext->menu();
foreach (QAction *action, contextMenu->actions()) {
menu->addAction(action);
if (action->objectName() == QLatin1String(QmlJSEditor::Constants::M_REFACTORING_MENU_INSERTION_POINT))
menu->addMenu(refactoringMenu);
if (action->objectName() == QLatin1String(QmlJSEditor::Constants::SHOW_QT_QUICK_HELPER)) {
bool enabled = m_contextPane->isAvailable(editor(), semanticInfo().document, m_semanticInfo.declaringMemberNoProperties(position()));
action->setEnabled(enabled);
}
}
}
appendStandardContextMenuActions(menu);
menu->exec(e->globalPos());
menu->deleteLater();
m_quickFixes.clear();
}
bool QmlJSTextEditorWidget::event(QEvent *e)
{
switch (e->type()) {
case QEvent::ShortcutOverride:
if (static_cast<QKeyEvent*>(e)->key() == Qt::Key_Escape && m_contextPane) {
if (hideContextPane()) {
e->accept();
return true;
}
}
break;
default:
break;
}
return BaseTextEditorWidget::event(e);
}
void QmlJSTextEditorWidget::wheelEvent(QWheelEvent *event)
{
bool visible = false;
if (m_contextPane && m_contextPane->widget()->isVisible())
visible = true;
BaseTextEditorWidget::wheelEvent(event);
if (visible)
m_contextPane->apply(editor(), semanticInfo().document, 0, m_semanticInfo.declaringMemberNoProperties(m_oldCursorPosition), false, true);
}
void QmlJSTextEditorWidget::resizeEvent(QResizeEvent *event)
{
BaseTextEditorWidget::resizeEvent(event);
hideContextPane();
}
void QmlJSTextEditorWidget::scrollContentsBy(int dx, int dy)
{
BaseTextEditorWidget::scrollContentsBy(dx, dy);
hideContextPane();
}
void QmlJSTextEditorWidget::unCommentSelection()
{
Utils::unCommentSelection(this);
}
void QmlJSTextEditorWidget::setTabSettings(const TextEditor::TabSettings &ts)
{
QmlJSTools::CreatorCodeFormatter formatter(ts);
formatter.invalidateCache(document());
TextEditor::BaseTextEditorWidget::setTabSettings(ts);
}
void QmlJSTextEditorWidget::updateSemanticInfo()
{
// If the editor is newer than the future semantic info, new semantic infos
// won't be accepted anyway. What we need is a reparse.
if (editorRevision() != m_futureSemanticInfoRevision)
return;
// Save time by not doing it for non-active editors.
if (Core::EditorManager::currentEditor() != editor())
return;
m_updateSemanticInfoTimer->start();
}
void QmlJSTextEditorWidget::updateSemanticInfoNow()
{
// If the editor is newer than the future semantic info, new semantic infos
// won't be accepted anyway. What we need is a reparse.
if (editorRevision() != m_futureSemanticInfoRevision)
return;
m_updateSemanticInfoTimer->stop();
m_semanticInfoUpdater->reupdate(m_modelManager->snapshot());
}
void QmlJSTextEditorWidget::acceptNewSemanticInfo(const SemanticInfo &semanticInfo)
{
if (semanticInfo.revision() != editorRevision()) {
// ignore outdated semantic infos
return;
}
//qDebug() << file()->fileName() << "got new semantic info";
m_semanticInfo = semanticInfo;
Document::Ptr doc = semanticInfo.document;
// create the ranges
CreateRanges createRanges;
m_semanticInfo.ranges = createRanges(document(), doc);
// Refresh the ids
FindIdDeclarations updateIds;
m_semanticInfo.idLocations = updateIds(doc);
if (m_contextPane) {
Node *newNode = m_semanticInfo.declaringMemberNoProperties(position());
if (newNode) {
m_contextPane->apply(editor(), semanticInfo.document, 0, newNode, true);
m_cursorPositionTimer->start(); //update text marker
}
}
// update outline
m_updateOutlineTimer->start();
if (Core::EditorManager::currentEditor() == editor())
m_semanticHighlighter->rerun(m_semanticInfo);
emit semanticInfoUpdated();
}
void QmlJSTextEditorWidget::onRefactorMarkerClicked(const TextEditor::RefactorMarker &marker)
{
if (marker.data.canConvert<QtQuickToolbarMarker>())
showContextPane();
}
void QmlJSTextEditorWidget::onCursorPositionChanged()
{
m_cursorPositionTimer->start();
}
QModelIndex QmlJSTextEditorWidget::indexForPosition(unsigned cursorPosition, const QModelIndex &rootIndex) const
{
QModelIndex lastIndex = rootIndex;
const int rowCount = m_outlineModel->rowCount(rootIndex);
for (int i = 0; i < rowCount; ++i) {
QModelIndex childIndex = m_outlineModel->index(i, 0, rootIndex);
AST::SourceLocation location = m_outlineModel->sourceLocation(childIndex);
if ((cursorPosition >= location.offset)
&& (cursorPosition <= location.offset + location.length)) {
lastIndex = childIndex;
break;
}
}
if (lastIndex != rootIndex) {
// recurse
lastIndex = indexForPosition(cursorPosition, lastIndex);
}
return lastIndex;
}
bool QmlJSTextEditorWidget::hideContextPane()
{
bool b = (m_contextPane) && m_contextPane->widget()->isVisible();
if (b)
m_contextPane->apply(editor(), semanticInfo().document, 0, 0, false);
return b;
}
QVector<TextEditor::TextStyle> QmlJSTextEditorWidget::highlighterFormatCategories()
{
/*
NumberFormat,
StringFormat,
TypeFormat,
KeywordFormat,
LabelFormat,
CommentFormat,
VisualWhitespace,
*/
static QVector<TextEditor::TextStyle> categories;
if (categories.isEmpty()) {
categories << TextEditor::C_NUMBER
<< TextEditor::C_STRING
<< TextEditor::C_TYPE
<< TextEditor::C_KEYWORD
<< TextEditor::C_FIELD
<< TextEditor::C_COMMENT
<< TextEditor::C_VISUAL_WHITESPACE;
}
return categories;
}
TextEditor::IAssistInterface *QmlJSTextEditorWidget::createAssistInterface(
TextEditor::AssistKind assistKind,
TextEditor::AssistReason reason) const
{
if (assistKind == TextEditor::Completion) {
return new QmlJSCompletionAssistInterface(document(),
position(),
editor()->document(),
reason,
m_semanticInfo);
} else if (assistKind == TextEditor::QuickFix) {
return new QmlJSQuickFixAssistInterface(const_cast<QmlJSTextEditorWidget *>(this), reason);
}
return 0;
}
QString QmlJSTextEditorWidget::foldReplacementText(const QTextBlock &block) const
{
const int curlyIndex = block.text().indexOf(QLatin1Char('{'));
if (curlyIndex != -1 && m_semanticInfo.isValid()) {
const int pos = block.position() + curlyIndex;
Node *node = m_semanticInfo.rangeAt(pos);
const QString objectId = idOfObject(node);
if (!objectId.isEmpty())
return QLatin1String("id: ") + objectId + QLatin1String("...");
}
return TextEditor::BaseTextEditorWidget::foldReplacementText(block);
}
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