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// Copyright (C) 2019 Klaralvdalens Datakonsult AB (KDAB)
// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qandroidplatformfiledialoghelper.h"
#include <androidjnimain.h>
#include <QtCore/QJniObject>
#include <QMimeDatabase>
#include <QMimeType>
#include <QRegularExpression>
#include <QUrl>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
namespace QtAndroidFileDialogHelper {
#define RESULT_OK -1
#define REQUEST_CODE 1305 // Arbitrary
const char JniIntentClass[] = "android/content/Intent";
QAndroidPlatformFileDialogHelper::QAndroidPlatformFileDialogHelper()
: QPlatformFileDialogHelper(),
m_activity(QtAndroidPrivate::activity())
{
}
bool QAndroidPlatformFileDialogHelper::handleActivityResult(jint requestCode, jint resultCode, jobject data)
{
if (requestCode != REQUEST_CODE)
return false;
if (resultCode != RESULT_OK) {
Q_EMIT reject();
return true;
}
const QJniObject intent = QJniObject::fromLocalRef(data);
const QJniObject uri = intent.callObjectMethod("getData", "()Landroid/net/Uri;");
if (uri.isValid()) {
takePersistableUriPermission(uri);
m_selectedFile.append(QUrl(uri.toString()));
Q_EMIT fileSelected(m_selectedFile.constFirst());
Q_EMIT currentChanged(m_selectedFile.constFirst());
Q_EMIT accept();
return true;
}
const QJniObject uriClipData =
intent.callObjectMethod("getClipData", "()Landroid/content/ClipData;");
if (uriClipData.isValid()) {
const int size = uriClipData.callMethod<jint>("getItemCount");
for (int i = 0; i < size; ++i) {
QJniObject item = uriClipData.callObjectMethod(
"getItemAt", "(I)Landroid/content/ClipData$Item;", i);
QJniObject itemUri = item.callObjectMethod("getUri", "()Landroid/net/Uri;");
takePersistableUriPermission(itemUri);
m_selectedFile.append(itemUri.toString());
}
Q_EMIT filesSelected(m_selectedFile);
Q_EMIT currentChanged(m_selectedFile.constFirst());
Q_EMIT accept();
}
return true;
}
void QAndroidPlatformFileDialogHelper::takePersistableUriPermission(const QJniObject &uri)
{
int modeFlags = QJniObject::getStaticField<jint>(
JniIntentClass, "FLAG_GRANT_READ_URI_PERMISSION");
if (options()->acceptMode() == QFileDialogOptions::AcceptSave) {
modeFlags |= QJniObject::getStaticField<jint>(
JniIntentClass, "FLAG_GRANT_WRITE_URI_PERMISSION");
}
QJniObject contentResolver = m_activity.callObjectMethod(
"getContentResolver", "()Landroid/content/ContentResolver;");
contentResolver.callMethod<void>("takePersistableUriPermission", "(Landroid/net/Uri;I)V",
uri.object(), modeFlags);
}
void QAndroidPlatformFileDialogHelper::setInitialFileName(const QString &title)
{
const QJniObject extraTitle = QJniObject::getStaticObjectField(
JniIntentClass, "EXTRA_TITLE", "Ljava/lang/String;");
m_intent.callObjectMethod("putExtra",
"(Ljava/lang/String;Ljava/lang/String;)Landroid/content/Intent;",
extraTitle.object(), QJniObject::fromString(title).object());
}
void QAndroidPlatformFileDialogHelper::setInitialDirectoryUri(const QString &directory)
{
if (directory.isEmpty())
return;
if (QNativeInterface::QAndroidApplication::sdkVersion() < 26)
return;
const auto extraInitialUri = QJniObject::getStaticObjectField(
"android/provider/DocumentsContract", "EXTRA_INITIAL_URI", "Ljava/lang/String;");
m_intent.callObjectMethod("putExtra",
"(Ljava/lang/String;Ljava/lang/String;)Landroid/content/Intent;",
extraInitialUri.object(),
QJniObject::fromString(directory).object());
}
void QAndroidPlatformFileDialogHelper::setOpenableCategory()
{
const QJniObject CATEGORY_OPENABLE = QJniObject::getStaticObjectField(
JniIntentClass, "CATEGORY_OPENABLE", "Ljava/lang/String;");
m_intent.callObjectMethod("addCategory", "(Ljava/lang/String;)Landroid/content/Intent;",
CATEGORY_OPENABLE.object());
}
void QAndroidPlatformFileDialogHelper::setAllowMultipleSelections(bool allowMultiple)
{
const QJniObject allowMultipleSelections = QJniObject::getStaticObjectField(
JniIntentClass, "EXTRA_ALLOW_MULTIPLE", "Ljava/lang/String;");
m_intent.callObjectMethod("putExtra", "(Ljava/lang/String;Z)Landroid/content/Intent;",
allowMultipleSelections.object(), allowMultiple);
}
QStringList nameFilterExtensions(const QString nameFilters)
{
QStringList ret;
#if QT_CONFIG(regularexpression)
QRegularExpression re("(\\*\\.[a-z .]+)");
QRegularExpressionMatchIterator i = re.globalMatch(nameFilters);
while (i.hasNext())
ret << i.next().captured(1).trimmed();
#endif // QT_CONFIG(regularexpression)
ret.removeAll("*");
return ret;
}
void QAndroidPlatformFileDialogHelper::setMimeTypes()
{
QStringList mimeTypes = options()->mimeTypeFilters();
const QStringList nameFilters = options()->nameFilters();
if (!nameFilters.isEmpty()) {
QMimeDatabase db;
for (auto filter : nameFilters) {
if (!filter.isEmpty()) {
for (const QString &filter : nameFilterExtensions(filter))
mimeTypes.append(db.mimeTypeForFile(filter, QMimeDatabase::MatchExtension).name());
}
}
}
const QString initialType = mimeTypes.size() == 1 ? mimeTypes.at(0) : "*/*"_L1;
m_intent.callObjectMethod("setType", "(Ljava/lang/String;)Landroid/content/Intent;",
QJniObject::fromString(initialType).object());
if (!mimeTypes.isEmpty()) {
const QJniObject extraMimeType = QJniObject::getStaticObjectField(
JniIntentClass, "EXTRA_MIME_TYPES", "Ljava/lang/String;");
const QJniObject mimeTypesArray = QJniObject::callStaticObjectMethod(
"org/qtproject/qt/android/QtNative",
"getStringArray",
"(Ljava/lang/String;)[Ljava/lang/String;",
QJniObject::fromString(mimeTypes.join(",")).object());
m_intent.callObjectMethod(
"putExtra", "(Ljava/lang/String;[Ljava/lang/String;)Landroid/content/Intent;",
extraMimeType.object(), mimeTypesArray.object());
}
}
QJniObject QAndroidPlatformFileDialogHelper::getFileDialogIntent(const QString &intentType)
{
const QJniObject ACTION_OPEN_DOCUMENT = QJniObject::getStaticObjectField(
JniIntentClass, intentType.toLatin1(), "Ljava/lang/String;");
return QJniObject(JniIntentClass, "(Ljava/lang/String;)V",
ACTION_OPEN_DOCUMENT.object());
}
bool QAndroidPlatformFileDialogHelper::show(Qt::WindowFlags windowFlags, Qt::WindowModality windowModality, QWindow *parent)
{
Q_UNUSED(windowFlags);
Q_UNUSED(windowModality);
Q_UNUSED(parent);
bool isDirDialog = false;
m_selectedFile.clear();
if (options()->acceptMode() == QFileDialogOptions::AcceptSave) {
m_intent = getFileDialogIntent("ACTION_CREATE_DOCUMENT");
const QList<QUrl> selectedFiles = options()->initiallySelectedFiles();
if (selectedFiles.size() > 0)
setInitialFileName(selectedFiles.first().fileName());
} else if (options()->acceptMode() == QFileDialogOptions::AcceptOpen) {
switch (options()->fileMode()) {
case QFileDialogOptions::FileMode::DirectoryOnly:
case QFileDialogOptions::FileMode::Directory:
m_intent = getFileDialogIntent("ACTION_OPEN_DOCUMENT_TREE");
isDirDialog = true;
break;
case QFileDialogOptions::FileMode::ExistingFiles:
m_intent = getFileDialogIntent("ACTION_OPEN_DOCUMENT");
setAllowMultipleSelections(true);
break;
case QFileDialogOptions::FileMode::AnyFile:
case QFileDialogOptions::FileMode::ExistingFile:
m_intent = getFileDialogIntent("ACTION_OPEN_DOCUMENT");
break;
}
}
if (!isDirDialog) {
setOpenableCategory();
setMimeTypes();
}
setInitialDirectoryUri(m_directory.toString());
QtAndroidPrivate::registerActivityResultListener(this);
m_activity.callMethod<void>("startActivityForResult", "(Landroid/content/Intent;I)V",
m_intent.object(), REQUEST_CODE);
return true;
}
void QAndroidPlatformFileDialogHelper::hide()
{
if (m_eventLoop.isRunning())
m_eventLoop.exit();
QtAndroidPrivate::unregisterActivityResultListener(this);
}
void QAndroidPlatformFileDialogHelper::setDirectory(const QUrl &directory)
{
m_directory = directory;
}
void QAndroidPlatformFileDialogHelper::exec()
{
m_eventLoop.exec(QEventLoop::DialogExec);
}
}
QT_END_NAMESPACE
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