c207743338
Now base::lambda can be copied and can wrap any immutable lambda. For mutable lambdas there is base::lambda_once (which you're supposed to call only once to pass data through lambda captures, for example by using std::unique_ptr). Generally base::lambda is passed by value and base::lambda_once is passed by rvalue reference.
77 lines
3.1 KiB
C++
77 lines
3.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include "core/observer.h"
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void filedialogInit();
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bool filedialogGetOpenFiles(QStringList &files, QByteArray &remoteContent, const QString &caption, const QString &filter);
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bool filedialogGetOpenFile(QString &file, QByteArray &remoteContent, const QString &caption, const QString &filter);
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bool filedialogGetSaveFile(QString &file, const QString &caption, const QString &filter, const QString &startName);
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bool filedialogGetDir(QString &dir, const QString &caption);
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QString filedialogDefaultName(const QString &prefix, const QString &extension, const QString &path = QString(), bool skipExistance = false);
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QString filedialogNextFilename(const QString &name, const QString &cur, const QString &path = QString());
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QString filedialogAllFilesFilter();
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namespace FileDialog {
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namespace internal {
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enum class Type {
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ReadFile,
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ReadFiles,
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ReadFolder,
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WriteFile,
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};
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} // namespace internal
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using QueryId = uint64;
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struct QueryUpdate {
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QueryUpdate(QueryId id) : queryId(id) {
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}
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QueryId queryId;
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QStringList filePaths;
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QByteArray remoteContent;
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};
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QueryId queryReadFile(const QString &caption, const QString &filter);
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QueryId queryReadFiles(const QString &caption, const QString &filter);
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QueryId queryWriteFile(const QString &caption, const QString &filter, const QString &filePath);
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QueryId queryReadFolder(const QString &caption);
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// Returns false if no need to call it anymore right now.
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// NB! This function enters an event loop.
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bool processQuery();
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base::Observable<QueryUpdate> &QueryDone();
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struct OpenResult {
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QStringList paths;
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QByteArray remoteContent;
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};
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void askOpenPath(const QString &caption, const QString &filter, base::lambda<void(const OpenResult &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
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void askOpenPaths(const QString &caption, const QString &filter, base::lambda<void(const OpenResult &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
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void askWritePath(const QString &caption, const QString &filter, const QString &initialPath, base::lambda<void(const QString &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
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void askFolder(const QString &caption, base::lambda<void(const QString &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
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} // namespace FileDialog
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