--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/scripttools/debugging/qscriptcompletiontask.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,307 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtSCriptTools module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qscriptcompletiontask_p.h"
+#include "qscriptcompletiontaskinterface_p_p.h"
+#include "qscriptdebuggerconsole_p.h"
+#include "qscriptdebuggerconsolecommand_p.h"
+#include "qscriptdebuggerconsolecommandmanager_p.h"
+#include "qscriptdebuggercommandschedulerjob_p.h"
+#include "qscriptdebuggercommandschedulerfrontend_p.h"
+#include "qscriptdebuggerjobschedulerinterface_p.h"
+#include "qscriptdebuggerresponse_p.h"
+
+#include "private/qobject_p.h"
+
+#include <QtCore/qset.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+class QScriptCompletionTaskPrivate
+ : public QScriptCompletionTaskInterfacePrivate
+{
+ Q_DECLARE_PUBLIC(QScriptCompletionTask)
+public:
+ QScriptCompletionTaskPrivate();
+ ~QScriptCompletionTaskPrivate();
+
+ void completeScriptExpression();
+ void emitFinished();
+
+ QString contents;
+ int cursorPosition;
+ int frameIndex;
+ QScriptDebuggerCommandSchedulerInterface *commandScheduler;
+ QScriptDebuggerJobSchedulerInterface *jobScheduler;
+ QScriptDebuggerConsole *console;
+};
+
+QScriptCompletionTaskPrivate::QScriptCompletionTaskPrivate()
+ : cursorPosition(0), frameIndex(0), commandScheduler(0),
+ jobScheduler(0), console(0)
+{
+}
+
+QScriptCompletionTaskPrivate::~QScriptCompletionTaskPrivate()
+{
+}
+
+class QScriptCompleteExpressionJob : public QScriptDebuggerCommandSchedulerJob
+{
+public:
+ QScriptCompleteExpressionJob(int frameIndex, const QStringList &path,
+ QScriptCompletionTaskPrivate *task,
+ QScriptDebuggerCommandSchedulerInterface *scheduler)
+ : QScriptDebuggerCommandSchedulerJob(scheduler),
+ m_frameIndex(frameIndex), m_path(path), m_task(task)
+ {}
+
+ void start()
+ {
+ QScriptDebuggerCommandSchedulerFrontend frontend(commandScheduler(), this);
+ frontend.scheduleGetCompletions(m_frameIndex, m_path);
+ }
+ void handleResponse(const QScriptDebuggerResponse &response, int /*commandId*/)
+ {
+ m_task->results = response.result().toStringList();
+ m_task->emitFinished();
+ finish();
+ }
+
+private:
+ int m_frameIndex;
+ QStringList m_path;
+ QScriptCompletionTaskPrivate *m_task;
+};
+
+namespace {
+
+static bool isIdentChar(const QChar &ch)
+{
+ static QChar underscore = QLatin1Char('_');
+ return ch.isLetter() || (ch == underscore);
+}
+
+static bool isPrefixOf(const QString &prefix, const QString &what)
+{
+ return ((what.length() > prefix.length())
+ && what.startsWith(prefix));
+}
+
+} // namespace
+
+class QScriptCompleteScriptsJob : public QScriptDebuggerCommandSchedulerJob
+{
+public:
+ QScriptCompleteScriptsJob(const QString &prefix, QScriptCompletionTaskPrivate *task,
+ QScriptDebuggerCommandSchedulerInterface *scheduler)
+ : QScriptDebuggerCommandSchedulerJob(scheduler),
+ m_prefix(prefix), m_task(task)
+ {}
+
+ void start()
+ {
+ QScriptDebuggerCommandSchedulerFrontend frontend(commandScheduler(), this);
+ frontend.scheduleGetScripts();
+ }
+ void handleResponse(const QScriptDebuggerResponse &response, int /*commandId*/)
+ {
+ QScriptScriptMap scripts = response.resultAsScripts();
+ QScriptScriptMap::const_iterator it;
+ for (it = scripts.constBegin(); it != scripts.constEnd(); ++it) {
+ QString fileName = it.value().fileName();
+ if (isPrefixOf(m_prefix, fileName))
+ m_task->results.append(fileName);
+ }
+ m_task->emitFinished();
+ finish();
+ }
+private:
+ QString m_prefix;
+ QScriptCompletionTaskPrivate *m_task;
+};
+
+void QScriptCompletionTaskPrivate::completeScriptExpression()
+{
+ int pos = cursorPosition;
+ if ((pos > 0) && contents.at(pos-1).isNumber()) {
+ // completion of numbers is pointless
+ emitFinished();
+ return;
+ }
+
+ while ((pos > 0) && isIdentChar(contents.at(pos-1)))
+ --pos;
+ int pos2 = cursorPosition - 1;
+ while ((pos2 < contents.size()-1) && isIdentChar(contents.at(pos2+1)))
+ ++pos2;
+ QString ident = contents.mid(pos, pos2 - pos + 1);
+ position = pos;
+
+ QStringList path;
+ path.append(ident);
+ while ((pos > 0) && (contents.at(pos-1) == QLatin1Char('.'))) {
+ --pos;
+ pos2 = pos;
+ while ((pos > 0) && isIdentChar(contents.at(pos-1)))
+ --pos;
+ path.prepend(contents.mid(pos, pos2 - pos));
+ }
+
+ length = path.last().length();
+ type = QScriptCompletionTask::ScriptIdentifierCompletion;
+
+ QScriptDebuggerJob *job = new QScriptCompleteExpressionJob(frameIndex, path, this, commandScheduler);
+ jobScheduler->scheduleJob(job);
+}
+
+void QScriptCompletionTaskPrivate::emitFinished()
+{
+ emit q_func()->finished();
+}
+
+QScriptCompletionTask::QScriptCompletionTask(
+ const QString &contents, int cursorPosition, int frameIndex,
+ QScriptDebuggerCommandSchedulerInterface *commandScheduler,
+ QScriptDebuggerJobSchedulerInterface *jobScheduler,
+ QScriptDebuggerConsole *console,
+ QObject *parent)
+ : QScriptCompletionTaskInterface(
+ *new QScriptCompletionTaskPrivate, parent)
+{
+ Q_D(QScriptCompletionTask);
+ d->contents = contents;
+ d->cursorPosition = cursorPosition;
+ if ((frameIndex == -1) && console)
+ d->frameIndex = console->currentFrameIndex();
+ else
+ d->frameIndex = frameIndex;
+ d->commandScheduler = commandScheduler;
+ d->jobScheduler = jobScheduler;
+ d->console = console;
+}
+
+QScriptCompletionTask::~QScriptCompletionTask()
+{
+}
+
+void QScriptCompletionTask::start()
+{
+ Q_D(QScriptCompletionTask);
+ d->type = NoCompletion;
+ // see if we're typing a command
+ // ### don't hardcode the command prefix
+ QRegExp cmdRx(QString::fromLatin1("^\\s*\\.([a-zA-Z]*)"));
+ int cmdIndex = cmdRx.indexIn(d->contents);
+ if ((cmdIndex != -1) && d->console) {
+ int len = cmdRx.matchedLength();
+ QString prefix = cmdRx.capturedTexts().at(1);
+ if ((d->cursorPosition >= cmdIndex) && (d->cursorPosition <= (cmdIndex+len))) {
+ // editing command --> get command completions
+ d->results = d->console->commandManager()->completions(prefix);
+ d->position = cmdRx.pos(1);
+ d->length = prefix.length();
+ d->type = CommandNameCompletion;
+ d->appendix = QString::fromLatin1(" ");
+ emit finished();
+ } else {
+ QScriptDebuggerConsoleCommand *cmd = d->console->commandManager()->findCommand(prefix);
+ if (!cmd) {
+ emit finished();
+ return;
+ }
+ // editing an argument
+ int argNum = 0;
+ QString arg;
+ int pos = cmdIndex + len;
+ while (pos < d->contents.size()) {
+ while ((pos < d->contents.size()) && d->contents.at(pos).isSpace())
+ ++pos;
+ if (pos < d->contents.size()) {
+ int pos2 = pos + 1;
+ while ((pos2 < d->contents.size()) && !d->contents.at(pos2).isSpace())
+ ++pos2;
+ if ((d->cursorPosition >= pos) && (d->cursorPosition <= pos2)) {
+ arg = d->contents.mid(pos, pos2 - pos);
+ break;
+ }
+ pos = pos2;
+ ++argNum;
+ }
+ }
+ QString argType = cmd->argumentTypes().value(argNum);
+ if (!argType.isEmpty()) {
+ if (argType == QLatin1String("command-or-group-name")) {
+ d->results = d->console->commandManager()->completions(arg);
+ } else if (argType == QLatin1String("script-filename")) {
+ d->position = pos;
+ d->length = arg.length();
+ d->type = CommandArgumentCompletion;
+ QScriptDebuggerJob *job = new QScriptCompleteScriptsJob(arg, d, d->commandScheduler);
+ d->jobScheduler->scheduleJob(job);
+ } else if (argType == QLatin1String("subcommand-name")) {
+ for (int i = 0; i < cmd->subCommands().size(); ++i) {
+ QString name = cmd->subCommands().at(i);
+ if (isPrefixOf(arg, name))
+ d->results.append(name);
+ }
+ qStableSort(d->results);
+ } else if (argType == QLatin1String("script")) {
+ d->completeScriptExpression();
+ } else {
+ emit finished();
+ }
+ if ((d->type == NoCompletion) && !d->results.isEmpty()) {
+ d->position = pos;
+ d->length = arg.length();
+ d->type = CommandArgumentCompletion;
+ emit finished();
+ }
+ }
+ }
+ } else {
+ // assume it's an eval expression
+ d->completeScriptExpression();
+ }
+}
+
+QT_END_NAMESPACE