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			Now preview state can be one of (allowed, cancelled, empty-in-edit). In case of editing a message without preview we set the state to empty-in-edit and it changes to allowed if the links in the message are changed somehow. That way we don't need to cancel the preview when editing a message with a cancelled preview and at the same time adding a link to a message that had no preview in the first place will add a preview.
		
			
				
	
	
		
			88 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
	
		
			2.2 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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| 
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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 "data/data_drafts.h"
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| 
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| #include "api/api_text_entities.h"
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| #include "ui/widgets/input_fields.h"
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| #include "chat_helpers/message_field.h"
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| #include "history/history.h"
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| #include "history/history_widget.h"
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| #include "main/main_session.h"
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| #include "data/data_session.h"
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| #include "mainwidget.h"
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| #include "storage/localstorage.h"
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| 
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| namespace Data {
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| 
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| Draft::Draft(
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| 	const TextWithTags &textWithTags,
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| 	MsgId msgId,
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| 	const MessageCursor &cursor,
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| 	PreviewState previewState,
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| 	mtpRequestId saveRequestId)
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| : textWithTags(textWithTags)
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| , msgId(msgId)
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| , cursor(cursor)
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| , previewState(previewState)
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| , saveRequestId(saveRequestId) {
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| }
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| 
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| Draft::Draft(
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| 	not_null<const Ui::InputField*> field,
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| 	MsgId msgId,
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| 	PreviewState previewState,
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| 	mtpRequestId saveRequestId)
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| : textWithTags(field->getTextWithTags())
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| , msgId(msgId)
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| , cursor(field)
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| , previewState(previewState) {
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| }
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| 
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| void ApplyPeerCloudDraft(
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| 		not_null<Main::Session*> session,
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| 		PeerId peerId,
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| 		const MTPDdraftMessage &draft) {
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| 	const auto history = session->data().history(peerId);
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| 	const auto textWithTags = TextWithTags {
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| 		qs(draft.vmessage()),
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| 		TextUtilities::ConvertEntitiesToTextTags(
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| 			Api::EntitiesFromMTP(
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| 				session,
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| 				draft.ventities().value_or_empty()))
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| 	};
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| 	const auto replyTo = draft.vreply_to_msg_id().value_or_empty();
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| 	if (history->skipCloudDraft(textWithTags.text, replyTo, draft.vdate().v)) {
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| 		return;
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| 	}
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| 	auto cloudDraft = std::make_unique<Draft>(
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| 		textWithTags,
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| 		replyTo,
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| 		MessageCursor(QFIXED_MAX, QFIXED_MAX, QFIXED_MAX),
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| 		(draft.is_no_webpage()
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| 			? Data::PreviewState::Cancelled
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| 			: Data::PreviewState::Allowed));
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| 	cloudDraft->date = draft.vdate().v;
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| 
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| 	history->setCloudDraft(std::move(cloudDraft));
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| 	history->applyCloudDraft();
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| }
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| 
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| void ClearPeerCloudDraft(
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| 		not_null<Main::Session*> session,
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| 		PeerId peerId,
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| 		TimeId date) {
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| 	const auto history = session->data().history(peerId);
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| 	if (history->skipCloudDraft(QString(), MsgId(0), date)) {
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| 		return;
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| 	}
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| 
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| 	history->clearCloudDraft();
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| 	history->applyCloudDraft();
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| }
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| 
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| } // namespace Data
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