51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "info/media/info_media_common.h"
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#include "history/history_item.h"
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namespace Info::Media {
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UniversalMsgId GetUniversalId(FullMsgId itemId) {
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return peerIsChannel(itemId.peer)
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? UniversalMsgId(itemId.msg)
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: UniversalMsgId(itemId.msg - ServerMaxMsgId);
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}
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UniversalMsgId GetUniversalId(not_null<const HistoryItem*> item) {
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return GetUniversalId(item->fullId());
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}
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UniversalMsgId GetUniversalId(not_null<const BaseLayout*> layout) {
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return GetUniversalId(layout->getItem()->fullId());
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}
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bool ChangeItemSelection(
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ListSelectedMap &selected,
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not_null<const HistoryItem*> item,
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ListItemSelectionData selectionData) {
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const auto changeExisting = [&](auto it) {
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if (it == selected.cend()) {
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return false;
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} else if (it->second != selectionData) {
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it->second = selectionData;
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return true;
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}
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return false;
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};
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if (selected.size() < MaxSelectedItems) {
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const auto &[i, ok] = selected.try_emplace(item, selectionData);
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if (ok) {
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return true;
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}
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return changeExisting(i);
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}
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return changeExisting(selected.find(item));
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}
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} // namespace Info::Media
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