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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "qmlpreviewconnectionmanager.h"
#include <coreplugin/icore.h>
#include <coreplugin/messagemanager.h>
#include <qtsupport/baseqtversion.h>
#include <QFileInfo>
#include <QDir>
#include <QMessageBox>
namespace QmlPreview {
QmlPreviewConnectionManager::QmlPreviewConnectionManager(QObject *parent) :
QmlDebug::QmlDebugConnectionManager(parent)
{
setTarget(nullptr);
}
QmlPreviewConnectionManager::~QmlPreviewConnectionManager() = default;
void QmlPreviewConnectionManager::setTarget(ProjectExplorer::Target *target)
{
QtSupport::QtVersion::populateQmlFileFinder(&m_projectFileFinder, target);
m_projectFileFinder.setAdditionalSearchDirectories(Utils::FilePaths());
m_targetFileFinder.setTarget(target);
}
void QmlPreviewConnectionManager::setFileLoader(QmlPreviewFileLoader fileLoader)
{
m_fileLoader = fileLoader;
}
void QmlPreviewConnectionManager::setFileClassifier(QmlPreviewFileClassifier fileClassifier)
{
m_fileClassifier = fileClassifier;
}
void QmlPreviewConnectionManager::setFpsHandler(QmlPreviewFpsHandler fpsHandler)
{
m_fpsHandler = fpsHandler;
}
void QmlPreviewConnectionManager::setQmlDebugTranslationClientCreator(QmlDebugTranslationClientFactoryFunction creator)
{
m_createDebugTranslationClientMethod = creator;
}
void QmlPreviewConnectionManager::createClients()
{
createPreviewClient();
createDebugTranslationClient();
}
QUrl QmlPreviewConnectionManager::findValidI18nDirectoryAsUrl(const QString &locale)
{
QTC_ASSERT(!m_lastLoadedUrl.isEmpty(), return {};);
const QString shortLocale = locale.left(locale.indexOf("_"));
QString path = m_lastLoadedUrl.path();
QString foundPath;
while (!path.isEmpty()) {
path = path.left(qMax(0, path.lastIndexOf("/")));
QUrl url = m_lastLoadedUrl;
auto tryPath = [&](const QString &postfix) {
url.setPath(path + "/i18n/qml_" + postfix);
bool success = false;
foundPath = m_projectFileFinder.findFile(url, &success).constFirst().toString();
foundPath = foundPath.left(qMax(0, foundPath.lastIndexOf("/i18n")));
return success;
};
if (tryPath(locale + ".qm"))
break;
if (tryPath(locale))
break;
if (tryPath(shortLocale + ".qm"))
break;
if (tryPath(shortLocale))
break;
}
QUrl url = m_lastLoadedUrl;
if (foundPath.isEmpty())
url.setPath(path);
else
url.setPath(foundPath);
return url;
}
void QmlPreviewConnectionManager::createDebugTranslationClient()
{
m_qmlDebugTranslationClient = m_createDebugTranslationClientMethod(connection());
connect(this, &QmlPreviewConnectionManager::language,
m_qmlDebugTranslationClient.get(), [this](const QString &locale) {
m_lastUsedLanguage = locale;
// findValidI18nDirectoryAsUrl does not work if we didn't load any file
// service expects a context URL.
if (!m_lastLoadedUrl.isEmpty()) {
// Search the parent directories of the last loaded URL for i18n files.
m_qmlDebugTranslationClient->changeLanguage(findValidI18nDirectoryAsUrl(locale), locale);
}
});
connect(m_qmlDebugTranslationClient.get(), &QmlDebugTranslationClient::debugServiceUnavailable,
this, []() {
QMessageBox::warning(Core::ICore::dialogParent(), "Error connect to QML DebugTranslation service",
"QML DebugTranslation feature is not available for this version of Qt.");
}, Qt::QueuedConnection); // Queue it, so that it interfere with the connection timer
}
void QmlPreviewConnectionManager::createPreviewClient()
{
m_qmlPreviewClient = new QmlPreviewClient(connection());
connect(this, &QmlPreviewConnectionManager::loadFile, m_qmlPreviewClient.data(),
[this](const QString &filename, const QString &changedFile,
const QByteArray &contents) {
if (!m_fileClassifier(changedFile)) {
emit restart();
return;
}
bool success = false;
const QString remoteChangedFile = m_targetFileFinder.findPath(changedFile, &success);
if (success)
m_qmlPreviewClient->announceFile(remoteChangedFile, contents);
else
m_qmlPreviewClient->clearCache();
m_lastLoadedUrl = m_targetFileFinder.findUrl(filename);
m_qmlPreviewClient->loadUrl(m_lastLoadedUrl);
// emit language after a file was loaded and do it every time,
// because this also triggers the check for missing translations
emit language(m_lastUsedLanguage);
});
connect(this, &QmlPreviewConnectionManager::rerun,
m_qmlPreviewClient.data(), &QmlPreviewClient::rerun);
connect(this, &QmlPreviewConnectionManager::zoom,
m_qmlPreviewClient.data(), &QmlPreviewClient::zoom);
connect(m_qmlPreviewClient.data(),
&QmlPreviewClient::pathRequested,
this,
[this](const QString &path) {
const bool found = m_projectFileFinder.findFileOrDirectory(
Utils::FilePath::fromString(path),
[&](const Utils::FilePath &filename, int confidence) {
if (m_fileLoader && confidence == path.length()) {
bool success = false;
QByteArray contents = m_fileLoader(filename.toFSPathString(), &success);
if (success) {
if (!m_fileSystemWatcher.watchesFile(filename)) {
m_fileSystemWatcher
.addFile(filename,
Utils::FileSystemWatcher::WatchModifiedDate);
}
m_qmlPreviewClient->announceFile(path, contents);
} else {
m_qmlPreviewClient->announceError(path);
}
} else {
m_qmlPreviewClient->announceError(path);
}
},
[&](const QStringList &entries, int confidence) {
if (confidence == path.length())
m_qmlPreviewClient->announceDirectory(path, entries);
else
m_qmlPreviewClient->announceError(path);
});
if (!found)
m_qmlPreviewClient->announceError(path);
});
connect(m_qmlPreviewClient.data(),
&QmlPreviewClient::errorReported,
this,
[](const QString &error) {
Core::MessageManager::writeFlashing("Error loading QML Live Preview:");
Core::MessageManager::writeSilently(error);
});
connect(m_qmlPreviewClient.data(), &QmlPreviewClient::fpsReported,
this, [this](const QmlPreviewClient::FpsInfo &frames) {
if (m_fpsHandler) {
quint16 stats[] = {
frames.numSyncs, frames.minSync, frames.maxSync, frames.totalSync,
frames.numRenders, frames.minRender, frames.maxRender, frames.totalRender
};
m_fpsHandler(stats);
}
});
connect(m_qmlPreviewClient.data(), &QmlPreviewClient::debugServiceUnavailable,
this, []() {
QMessageBox::warning(Core::ICore::dialogParent(), "Error loading QML Live Preview",
"QML Live Preview is not available for this version of Qt.");
}, Qt::QueuedConnection); // Queue it, so that it interfere with the connection timer
connect(&m_fileSystemWatcher, &Utils::FileSystemWatcher::fileChanged,
m_qmlPreviewClient.data(), [this](const QString &changedFile) {
if (!m_fileLoader || !m_lastLoadedUrl.isValid())
return;
bool success = false;
const QByteArray contents = m_fileLoader(changedFile, &success);
if (!success)
return;
if (!m_fileClassifier(changedFile)) {
emit restart();
return;
}
const QString remoteChangedFile = m_targetFileFinder.findPath(changedFile, &success);
if (success)
m_qmlPreviewClient->announceFile(remoteChangedFile, contents);
else
m_qmlPreviewClient->clearCache();
m_qmlPreviewClient->loadUrl(m_lastLoadedUrl);
});
}
void QmlPreviewConnectionManager::clearClient(QObject *client)
{
if (client) {
disconnect(client, nullptr, this, nullptr);
disconnect(this, nullptr, client, nullptr);
client->deleteLater();
}
};
void QmlPreviewConnectionManager::destroyClients()
{
clearClient(m_qmlPreviewClient);
clearClient(m_qmlDebugTranslationClient.release());
m_fileSystemWatcher.clear();
}
} // namespace QmlPreview
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