| /**************************************************************************** |
| ** |
| ** Copyright (C) 2018 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtSCriptTools module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
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| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qscriptdebuggerconsolewidget_p.h" |
| #include "qscriptdebuggerconsolewidgetinterface_p_p.h" |
| #include "qscriptdebuggerconsolehistorianinterface_p.h" |
| #include "qscriptcompletionproviderinterface_p.h" |
| #include "qscriptcompletiontaskinterface_p.h" |
| |
| #include <QtCore/qdebug.h> |
| #include <QtWidgets/qplaintextedit.h> |
| #include <QtWidgets/qlabel.h> |
| #include <QtWidgets/qlineedit.h> |
| #include <QtWidgets/qlistview.h> |
| #include <QtWidgets/qscrollbar.h> |
| #include <QtWidgets/qboxlayout.h> |
| #include <QtWidgets/qcompleter.h> |
| |
| #include <algorithm> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace { |
| |
| class PromptLabel : public QLabel |
| { |
| public: |
| PromptLabel(QWidget *parent = 0) |
| : QLabel(parent) |
| { |
| setFrameShape(QFrame::NoFrame); |
| setIndent(2); |
| setMargin(2); |
| setSizePolicy(QSizePolicy::Minimum, sizePolicy().verticalPolicy()); |
| setAlignment(Qt::AlignHCenter); |
| #ifndef QT_NO_STYLE_STYLESHEET |
| setStyleSheet(QLatin1String("background: white;")); |
| #endif |
| } |
| |
| QSize sizeHint() const { |
| QFontMetrics fm(font()); |
| return fm.size(0, text()) + QSize(8, 0); |
| } |
| }; |
| |
| class InputEdit : public QLineEdit |
| { |
| public: |
| InputEdit(QWidget *parent = 0) |
| : QLineEdit(parent) |
| { |
| setFrame(false); |
| setSizePolicy(QSizePolicy::MinimumExpanding, sizePolicy().verticalPolicy()); |
| } |
| }; |
| |
| class CommandLine : public QWidget |
| { |
| Q_OBJECT |
| public: |
| CommandLine(QWidget *parent = 0) |
| : QWidget(parent) |
| { |
| promptLabel = new PromptLabel(); |
| inputEdit = new InputEdit(); |
| QHBoxLayout *hbox = new QHBoxLayout(this); |
| hbox->setSpacing(0); |
| hbox->setContentsMargins(0, 0, 0, 0); |
| hbox->addWidget(promptLabel); |
| hbox->addWidget(inputEdit); |
| |
| QObject::connect(inputEdit, SIGNAL(returnPressed()), |
| this, SLOT(onReturnPressed())); |
| QObject::connect(inputEdit, SIGNAL(textEdited(QString)), |
| this, SIGNAL(lineEdited(QString))); |
| |
| setFocusProxy(inputEdit); |
| } |
| |
| QString prompt() const |
| { |
| return promptLabel->text(); |
| } |
| void setPrompt(const QString &prompt) |
| { |
| promptLabel->setText(prompt); |
| } |
| |
| QString input() const |
| { |
| return inputEdit->text(); |
| } |
| void setInput(const QString &input) |
| { |
| inputEdit->setText(input); |
| } |
| |
| int cursorPosition() const |
| { |
| return inputEdit->cursorPosition(); |
| } |
| void setCursorPosition(int position) |
| { |
| inputEdit->setCursorPosition(position); |
| } |
| |
| QWidget *editor() const |
| { |
| return inputEdit; |
| } |
| |
| Q_SIGNALS: |
| void lineEntered(const QString &contents); |
| void lineEdited(const QString &contents); |
| |
| private Q_SLOTS: |
| void onReturnPressed() |
| { |
| QString text = inputEdit->text(); |
| inputEdit->clear(); |
| emit lineEntered(text); |
| } |
| |
| private: |
| PromptLabel *promptLabel; |
| InputEdit *inputEdit; |
| }; |
| |
| class QScriptDebuggerConsoleWidgetOutputEdit : public QPlainTextEdit |
| { |
| public: |
| QScriptDebuggerConsoleWidgetOutputEdit(QWidget *parent = 0) |
| : QPlainTextEdit(parent) |
| { |
| setFrameShape(QFrame::NoFrame); |
| setReadOnly(true); |
| // ### there's no context menu when the edit can't have focus, |
| // even though you can select text in it. |
| // setFocusPolicy(Qt::NoFocus); |
| setMaximumBlockCount(2500); |
| } |
| |
| void scrollToBottom() |
| { |
| QScrollBar *bar = verticalScrollBar(); |
| bar->setValue(bar->maximum()); |
| } |
| |
| int charactersPerLine() const |
| { |
| QFontMetrics fm(font()); |
| return width() / fm.maxWidth(); |
| } |
| }; |
| |
| } // namespace |
| |
| class QScriptDebuggerConsoleWidgetPrivate |
| : public QScriptDebuggerConsoleWidgetInterfacePrivate |
| { |
| Q_DECLARE_PUBLIC(QScriptDebuggerConsoleWidget) |
| public: |
| QScriptDebuggerConsoleWidgetPrivate(); |
| ~QScriptDebuggerConsoleWidgetPrivate(); |
| |
| // private slots |
| void _q_onLineEntered(const QString &contents); |
| void _q_onLineEdited(const QString &contents); |
| void _q_onCompletionTaskFinished(); |
| |
| CommandLine *commandLine; |
| QScriptDebuggerConsoleWidgetOutputEdit *outputEdit; |
| int historyIndex; |
| QString newInput; |
| }; |
| |
| QScriptDebuggerConsoleWidgetPrivate::QScriptDebuggerConsoleWidgetPrivate() |
| { |
| historyIndex = -1; |
| } |
| |
| QScriptDebuggerConsoleWidgetPrivate::~QScriptDebuggerConsoleWidgetPrivate() |
| { |
| } |
| |
| void QScriptDebuggerConsoleWidgetPrivate::_q_onLineEntered(const QString &contents) |
| { |
| Q_Q(QScriptDebuggerConsoleWidget); |
| outputEdit->appendPlainText(QString::fromLatin1("%0 %1").arg(commandLine->prompt()).arg(contents)); |
| outputEdit->scrollToBottom(); |
| historyIndex = -1; |
| newInput.clear(); |
| emit q->lineEntered(contents); |
| } |
| |
| void QScriptDebuggerConsoleWidgetPrivate::_q_onLineEdited(const QString &contents) |
| { |
| if (historyIndex != -1) { |
| // ### try to get the bash behavior... |
| #if 0 |
| historian->changeHistoryAt(historyIndex, contents); |
| #endif |
| } else { |
| newInput = contents; |
| } |
| } |
| |
| static bool lengthLessThan(const QString &s1, const QString &s2) |
| { |
| return s1.length() < s2.length(); |
| } |
| |
| // input must be sorted by length already |
| static QString longestCommonPrefix(const QStringList &lst) |
| { |
| QString result = lst.last(); |
| for (int i = lst.size() - 2; (i >= 0) && !result.isEmpty(); --i) { |
| const QString &s = lst.at(i); |
| int j = 0; |
| for ( ; (j < qMin(s.length(), result.length())) && (s.at(j) == result.at(j)); ++j) |
| ; |
| result = result.left(j); |
| } |
| return result; |
| } |
| |
| void QScriptDebuggerConsoleWidgetPrivate::_q_onCompletionTaskFinished() |
| { |
| QScriptCompletionTaskInterface *task = 0; |
| task = qobject_cast<QScriptCompletionTaskInterface*>(q_func()->sender()); |
| if (task->resultCount() == 1) { |
| QString completion = task->resultAt(0); |
| completion.append(task->appendix()); |
| QString tmp = commandLine->input(); |
| tmp.remove(task->position(), task->length()); |
| tmp.insert(task->position(), completion); |
| commandLine->setInput(tmp); |
| } else if (task->resultCount() > 1) { |
| { |
| QStringList lst; |
| for (int i = 0; i < task->resultCount(); ++i) |
| lst.append(task->resultAt(i).mid(task->length())); |
| std::sort(lst.begin(), lst.end(), lengthLessThan); |
| QString lcp = longestCommonPrefix(lst); |
| if (!lcp.isEmpty()) { |
| QString tmp = commandLine->input(); |
| tmp.insert(task->position() + task->length(), lcp); |
| commandLine->setInput(tmp); |
| } |
| } |
| |
| outputEdit->appendPlainText(QString::fromLatin1("%0 %1") |
| .arg(commandLine->prompt()).arg(commandLine->input())); |
| int maxLength = 0; |
| for (int i = 0; i < task->resultCount(); ++i) |
| maxLength = qMax(maxLength, task->resultAt(i).length()); |
| Q_ASSERT(maxLength > 0); |
| int tab = 8; |
| int columns = qMax(1, outputEdit->charactersPerLine() / (maxLength + tab)); |
| QString msg; |
| for (int i = 0; i < task->resultCount(); ++i) { |
| if (i != 0) { |
| if ((i % columns) == 0) { |
| outputEdit->appendPlainText(msg); |
| msg.clear(); |
| } else { |
| int pad = maxLength + tab - (msg.length() % (maxLength + tab)); |
| msg.append(QString(pad, QLatin1Char(' '))); |
| } |
| } |
| msg.append(task->resultAt(i)); |
| } |
| if (!msg.isEmpty()) |
| outputEdit->appendPlainText(msg); |
| outputEdit->scrollToBottom(); |
| } |
| task->deleteLater(); |
| } |
| |
| QScriptDebuggerConsoleWidget::QScriptDebuggerConsoleWidget(QWidget *parent) |
| : QScriptDebuggerConsoleWidgetInterface(*new QScriptDebuggerConsoleWidgetPrivate, parent, 0) |
| { |
| Q_D(QScriptDebuggerConsoleWidget); |
| d->commandLine = new CommandLine(); |
| d->commandLine->setPrompt(QString::fromLatin1("qsdb>")); |
| d->outputEdit = new QScriptDebuggerConsoleWidgetOutputEdit(); |
| QVBoxLayout *vbox = new QVBoxLayout(this); |
| vbox->setSpacing(0); |
| vbox->setContentsMargins(0, 0, 0, 0); |
| vbox->addWidget(d->outputEdit); |
| vbox->addWidget(d->commandLine); |
| |
| #if 0 |
| QString sheet = QString::fromLatin1("background-color: black;" |
| "color: aquamarine;" |
| "font-size: 14px;" |
| "font-family: \"Monospace\""); |
| #endif |
| #ifndef QT_NO_STYLE_STYLESHEET |
| QString sheet = QString::fromLatin1("font-size: 14px; font-family: \"Monospace\";"); |
| setStyleSheet(sheet); |
| #endif |
| |
| QObject::connect(d->commandLine, SIGNAL(lineEntered(QString)), |
| this, SLOT(_q_onLineEntered(QString))); |
| QObject::connect(d->commandLine, SIGNAL(lineEdited(QString)), |
| this, SLOT(_q_onLineEdited(QString))); |
| } |
| |
| QScriptDebuggerConsoleWidget::~QScriptDebuggerConsoleWidget() |
| { |
| } |
| |
| void QScriptDebuggerConsoleWidget::message( |
| QtMsgType type, const QString &text, const QString &fileName, |
| int lineNumber, int columnNumber, const QVariant &/*data*/) |
| { |
| Q_D(QScriptDebuggerConsoleWidget); |
| QString msg; |
| if (!fileName.isEmpty() || (lineNumber != -1)) { |
| if (!fileName.isEmpty()) |
| msg.append(fileName); |
| else |
| msg.append(QLatin1String("<noname>")); |
| if (lineNumber != -1) { |
| msg.append(QLatin1Char(':')); |
| msg.append(QString::number(lineNumber)); |
| if (columnNumber != -1) { |
| msg.append(QLatin1Char(':')); |
| msg.append(QString::number(columnNumber)); |
| } |
| } |
| msg.append(QLatin1String(": ")); |
| } |
| msg.append(text); |
| QTextCharFormat oldFmt = d->outputEdit->currentCharFormat(); |
| QTextCharFormat fmt(oldFmt); |
| if (type == QtCriticalMsg) { |
| fmt.setForeground(Qt::red); |
| d->outputEdit->setCurrentCharFormat(fmt); |
| } |
| d->outputEdit->appendPlainText(msg); |
| d->outputEdit->setCurrentCharFormat(oldFmt); |
| d->outputEdit->scrollToBottom(); |
| } |
| |
| void QScriptDebuggerConsoleWidget::setLineContinuationMode(bool enabled) |
| { |
| Q_D(QScriptDebuggerConsoleWidget); |
| QString prompt = enabled |
| ? QString::fromLatin1("....") |
| : QString::fromLatin1("qsdb>"); |
| d->commandLine->setPrompt(prompt); |
| } |
| |
| void QScriptDebuggerConsoleWidget::clear() |
| { |
| Q_D(QScriptDebuggerConsoleWidget); |
| d->outputEdit->clear(); |
| } |
| |
| void QScriptDebuggerConsoleWidget::keyPressEvent(QKeyEvent *event) |
| { |
| Q_D(QScriptDebuggerConsoleWidget); |
| if (event->key() == Qt::Key_Up) { |
| if (d->historyIndex+1 == d->historian->historyCount()) |
| return; |
| QString cmd = d->historian->historyAt(++d->historyIndex); |
| d->commandLine->setInput(cmd); |
| } else if (event->key() == Qt::Key_Down) { |
| if (d->historyIndex == -1) { |
| // nothing to do |
| } else if (d->historyIndex == 0) { |
| d->commandLine->setInput(d->newInput); |
| --d->historyIndex; |
| } else { |
| QString cmd = d->historian->historyAt(--d->historyIndex); |
| d->commandLine->setInput(cmd); |
| } |
| } else if (event->key() == Qt::Key_Tab) { |
| QScriptCompletionTaskInterface *task = 0; |
| task = d->completionProvider->createCompletionTask( |
| d->commandLine->input(), d->commandLine->cursorPosition(), |
| /*frameIndex=*/-1, // current frame |
| QScriptCompletionProviderInterface::ConsoleCommandCompletion); |
| QObject::connect(task, SIGNAL(finished()), |
| this, SLOT(_q_onCompletionTaskFinished())); |
| task->start(); |
| } else { |
| QScriptDebuggerConsoleWidgetInterface::keyPressEvent(event); |
| } |
| } |
| |
| bool QScriptDebuggerConsoleWidget::focusNextPrevChild(bool b) |
| { |
| Q_D(QScriptDebuggerConsoleWidget); |
| if (d->outputEdit->hasFocus()) |
| return QScriptDebuggerConsoleWidgetInterface::focusNextPrevChild(b); |
| else |
| return false; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #include "qscriptdebuggerconsolewidget.moc" |
| |
| #include "moc_qscriptdebuggerconsolewidget_p.cpp" |