Disable selecting items with actions.

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -66,6 +66,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_poll.h"
 #include "data/data_photo.h"
 #include "data/data_photo_media.h"
+#include "data/data_peer_values.h"
+#include "data/data_chat.h"
 #include "data/data_user.h"
 #include "data/data_file_click_handler.h"
 #include "data/data_file_origin.h"
@@ -258,12 +260,61 @@ HistoryInner::HistoryInner(
 	) | rpl::start_with_next([=](int d) {
 		_scroll->scrollToY(_scroll->scrollTop() + d);
 	}, _scroll->lifetime());
+
+	setupSharingDisallowed();
 }
 
 Main::Session &HistoryInner::session() const {
 	return _controller->session();
 }
 
+void HistoryInner::setupSharingDisallowed() {
+	Expects(_peer != nullptr);
+
+	if (_peer->isUser()) {
+		_sharingDisallowed = false;
+		return;
+	}
+	const auto chat = _peer->asChat();
+	const auto channel = _peer->asChannel();
+	_sharingDisallowed = chat
+		? Data::PeerFlagValue(chat, ChatDataFlag::NoForwards)
+		: Data::PeerFlagValue(channel, ChannelDataFlag::NoForwards);
+
+	auto rights = chat
+		? chat->adminRightsValue()
+		: channel->adminRightsValue();
+	auto canDelete = std::move(
+		rights
+	) | rpl::map([=] {
+		return chat
+			? chat->canDeleteMessages()
+			: channel->canDeleteMessages();
+	});
+	rpl::combine(
+		_sharingDisallowed.value(),
+		std::move(canDelete)
+	) | rpl::filter([=](bool disallowed, bool canDelete) {
+		return hasSelectRestriction() && !getSelectedItems().empty();
+	}) | rpl::start_with_next([=] {
+		_widget->clearSelected();
+		if (_mouseAction == MouseAction::PrepareSelect) {
+			mouseActionCancel();
+		}
+	}, lifetime());
+}
+
+bool HistoryInner::hasSelectRestriction() const {
+	if (!_sharingDisallowed.current()) {
+		return false;
+	} else if (const auto chat = _peer->asChat()) {
+		return !chat->canDeleteMessages();
+	} else if (const auto channel = _peer->asChannel()) {
+		return !channel->canDeleteMessages();
+	}
+	return true;
+}
+
 void HistoryInner::messagesReceived(
 		PeerData *peer,
 		const QVector<MTPMessage> &messages) {
@@ -1216,12 +1267,12 @@ void HistoryInner::mouseActionStart(const QPoint &screenPos, Qt::MouseButton but
 							_selected.emplace(_mouseActionItem, selStatus);
 							_mouseAction = MouseAction::Selecting;
 							repaintItem(_mouseActionItem);
-						} else {
+						} else if (!hasSelectRestriction()) {
 							_mouseAction = MouseAction::PrepareSelect;
 						}
 					}
 				}
-			} else if (!_pressWasInactive) {
+			} else if (!_pressWasInactive && !hasSelectRestriction()) {
 				_mouseAction = MouseAction::PrepareSelect; // start items select
 			}
 		}
@@ -1250,7 +1301,8 @@ std::unique_ptr<QMimeData> HistoryInner::prepareDrag() {
 	}
 
 	const auto pressedHandler = ClickHandler::getPressed();
-	if (dynamic_cast<VoiceSeekClickHandler*>(pressedHandler.get())) {
+	if (dynamic_cast<VoiceSeekClickHandler*>(pressedHandler.get())
+		|| !_peer->allowsForwarding()) {
 		return nullptr;
 	}
 
@@ -1281,7 +1333,6 @@ std::unique_ptr<QMimeData> HistoryInner::prepareDrag() {
 			}
 		}
 	}
-
 	auto urls = QList<QUrl>();
 	const auto selectedText = [&] {
 		if (uponSelected) {
@@ -1737,6 +1788,29 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 		}
 	};
 
+	const auto addSelectMessageAction = [&](
+			not_null<HistoryItem*> item,
+			bool asGroup = true) {
+		if (item->isRegular()
+			&& !item->isService()
+			&& !hasSelectRestriction()) {
+			const auto itemId = item->fullId();
+			_menu->addAction(tr::lng_context_select_msg(tr::now), [=] {
+				if (const auto item = session->data().message(itemId)) {
+					if (const auto view = item->mainView()) {
+						if (asGroup) {
+							changeSelectionAsGroup(&_selected, item, SelectAction::Select);
+						} else {
+							changeSelection(&_selected, item, SelectAction::Select);
+						}
+						repaintItem(item);
+						_widget->updateTopBarSelection();
+					}
+				}
+			});
+		}
+	};
+
 	if (hasWhoReadItem) {
 		const auto participantChosen = [=](uint64 id) {
 			controller->showPeerInfo(PeerId(id));
@@ -1808,17 +1882,7 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 					});
 				}
 			}
-			if (item->isRegular() && !item->isService()) {
-				_menu->addAction(tr::lng_context_select_msg(tr::now), [=] {
-					if (const auto item = session->data().message(itemId)) {
-						if (const auto view = item->mainView()) {
-							changeSelection(&_selected, item, SelectAction::Select);
-							repaintItem(item);
-							_widget->updateTopBarSelection();
-						}
-					}
-				});
-			}
+			addSelectMessageAction(item, false);
 			if (isUponSelected != -2 && blockSender) {
 				_menu->addAction(tr::lng_profile_block_user(tr::now), [=] {
 					blockSenderItem(itemId);
@@ -1959,37 +2023,14 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 					});
 				}
 			}
-			if (item->isRegular() && !item->isService()) {
-				_menu->addAction(tr::lng_context_select_msg(tr::now), [=] {
-					if (const auto item = session->data().message(itemId)) {
-						if (const auto view = item->mainView()) {
-							changeSelectionAsGroup(&_selected, item, SelectAction::Select);
-							repaintItem(view);
-							_widget->updateTopBarSelection();
-						}
-					}
-				});
-			}
+			addSelectMessageAction(item);
 			if (isUponSelected != -2 && canBlockSender) {
 				_menu->addAction(tr::lng_profile_block_user(tr::now), [=] {
 					blockSenderAsGroup(itemId);
 				});
 			}
-		} else {
-			if (App::mousedItem()
-				&& App::mousedItem()->data()->isRegular()
-				&& !App::mousedItem()->data()->isService()) {
-				const auto itemId = App::mousedItem()->data()->fullId();
-				_menu->addAction(tr::lng_context_select_msg(tr::now), [=] {
-					if (const auto item = session->data().message(itemId)) {
-						if (const auto view = item->mainView()) {
-							changeSelectionAsGroup(&_selected, item, SelectAction::Select);
-							repaintItem(item);
-							_widget->updateTopBarSelection();
-						}
-					}
-				});
-			}
+		} else if (App::mousedItem()) {
+			addSelectMessageAction(App::mousedItem()->data());
 		}
 	}
 
@@ -2001,8 +2042,12 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 	}
 }
 
+bool HistoryInner::hasCopyRestriction() const {
+	return !_peer->allowsForwarding();
+}
+
 bool HistoryInner::showCopyRestriction() {
-	if (_peer->allowsForwarding()) {
+	if (!hasCopyRestriction()) {
 		return false;
 	}
 	Ui::ShowMultilineToast({
@@ -2817,18 +2862,6 @@ MessageIdsList HistoryInner::getSelectedItems() const {
 	return result;
 }
 
-void HistoryInner::selectItem(not_null<HistoryItem*> item) {
-	if (!_selected.empty() && _selected.cbegin()->second != FullSelection) {
-		_selected.clear();
-	} else if (_selected.size() == MaxSelectedItems
-		&& _selected.find(item) == _selected.cend()) {
-		return;
-	}
-	_selected.emplace(item, FullSelection);
-	_widget->updateTopBarSelection();
-	_widget->update();
-}
-
 void HistoryInner::onTouchSelect() {
 	_touchSelect = true;
 	mouseActionStart(_touchPos, Qt::LeftButton);
@@ -3115,6 +3148,9 @@ void HistoryInner::mouseActionUpdate() {
 void HistoryInner::updateDragSelection(Element *dragSelFrom, Element *dragSelTo, bool dragSelecting) {
 	if (_dragSelFrom == dragSelFrom && _dragSelTo == dragSelTo && _dragSelecting == dragSelecting) {
 		return;
+	} else if (dragSelFrom && hasSelectRestriction()) {
+		updateDragSelection(nullptr, nullptr, false);
+		return;
 	}
 	_dragSelFrom = dragSelFrom;
 	_dragSelTo = dragSelTo;
@@ -3248,7 +3284,9 @@ void HistoryInner::notifyMigrateUpdated() {
 }
 
 void HistoryInner::applyDragSelection() {
-	applyDragSelection(&_selected);
+	if (!hasSelectRestriction()) {
+		applyDragSelection(&_selected);
+	}
 }
 
 bool HistoryInner::isSelected(

Telegram/SourceFiles/history/history_inner_widget.h

@@ -85,7 +85,6 @@ public:
 	HistoryView::TopBarWidget::SelectedState getSelectionState() const;
 	void clearSelected(bool onlyTextSelection = false);
 	MessageIdsList getSelectedItems() const;
-	void selectItem(not_null<HistoryItem*> item);
 	bool inSelectionMode() const;
 	bool elementIntersectsRange(
 		not_null<const Element*> view,
@@ -342,7 +341,11 @@ private:
 	void blockSenderItem(FullMsgId itemId);
 	void blockSenderAsGroup(FullMsgId itemId);
 	void copySelectedText();
+
+	void setupSharingDisallowed();
+	[[nodiscard]] bool hasCopyRestriction() const;
 	bool showCopyRestriction();
+	[[nodiscard]] bool hasSelectRestriction() const;
 
 	// Does any of the shown histories has this flag set.
 	bool hasPendingResizedItems() const;
@@ -416,6 +419,8 @@ private:
 
 	Ui::SelectScrollManager _selectScroll;
 
+	rpl::variable<bool> _sharingDisallowed = false;
+
 	Ui::TouchScrollState _touchScrollState = Ui::TouchScrollState::Manual;
 	bool _touchPrevPosValid = false;
 	bool _touchWaitingAcceleration = false;

Telegram/SourceFiles/history/view/history_view_context_menu.cpp

@@ -811,7 +811,10 @@ bool AddSelectMessageAction(
 	const auto item = request.item;
 	if (request.overSelection && !request.selectedItems.empty()) {
 		return false;
-	} else if (!item || item->isLocal() || item->isService()) {
+	} else if (!item
+		|| item->isLocal()
+		|| item->isService()
+		|| list->hasSelectRestriction()) {
 		return false;
 	}
 	const auto owner = &item->history()->owner();

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -1076,7 +1076,9 @@ void ListWidget::cancelSelection() {
 }
 
 void ListWidget::selectItem(not_null<HistoryItem*> item) {
-	if (const auto view = viewForItem(item)) {
+	if (hasSelectRestriction()) {
+		return;
+	} else if (const auto view = viewForItem(item)) {
 		clearTextSelection();
 		changeSelection(
 			_selected,
@@ -1087,7 +1089,9 @@ void ListWidget::selectItem(not_null<HistoryItem*> item) {
 }
 
 void ListWidget::selectItemAsGroup(not_null<HistoryItem*> item) {
-	if (const auto view = viewForItem(item)) {
+	if (hasSelectRestriction()) {
+		return;
+	} else if (const auto view = viewForItem(item)) {
 		clearTextSelection();
 		changeSelectionAsGroup(
 			_selected,
@@ -1165,8 +1169,6 @@ bool ListWidget::isEmpty() const {
 		&& (_itemsHeight + _itemsRevealHeight == 0);
 }
 
-
-
 bool ListWidget::hasCopyRestriction() const {
 	return _delegate->listCopyRestrictionType() != CopyRestrictionType::None;
 }
@@ -1184,6 +1186,11 @@ bool ListWidget::showCopyRestriction() {
 	return true;
 }
 
+bool ListWidget::hasSelectRestriction() const {
+	return _delegate->listSelectRestrictionType()
+		!= CopyRestrictionType::None;
+}
+
 int ListWidget::itemMinimalHeight() const {
 	return st::msgMarginTopAttached
 		+ st::msgPhotoSize
@@ -1751,7 +1758,9 @@ void ListWidget::paintEvent(QPaintEvent *e) {
 }
 
 void ListWidget::applyDragSelection() {
-	applyDragSelection(_selected);
+	if (!hasSelectRestriction()) {
+		applyDragSelection(_selected);
+	}
 	clearDragSelection();
 	pushSelectedItems();
 }
@@ -2080,7 +2089,9 @@ void ListWidget::leaveEventHook(QEvent *e) {
 }
 
 void ListWidget::updateDragSelection() {
-	if (!_overState.itemId || !_pressState.itemId) {
+	if (!_overState.itemId
+		|| !_pressState.itemId
+		|| hasSelectRestriction()) {
 		clearDragSelection();
 		return;
 	} else if (_items.empty() || !_overElement || !_selectEnabled) {
@@ -2281,7 +2292,7 @@ void ListWidget::mouseActionStart(
 	} else if (hasSelectedItems()) {
 		if (overSelectedItems()) {
 			_mouseAction = MouseAction::PrepareDrag;
-		} else if (!_pressWasInactive) {
+		} else if (!_pressWasInactive && !hasSelectRestriction()) {
 			_mouseAction = MouseAction::PrepareSelect;
 		}
 	}
@@ -2326,7 +2337,7 @@ void ListWidget::mouseActionStart(
 							_mouseTextSymbol,
 							_mouseTextSymbol));
 						_mouseAction = MouseAction::Selecting;
-					} else {
+					} else if (!hasSelectRestriction()) {
 						_mouseAction = MouseAction::PrepareSelect;
 					}
 				}
@@ -2653,7 +2664,8 @@ std::unique_ptr<QMimeData> ListWidget::prepareDrag() {
 		return nullptr;
 	}
 	auto pressedHandler = ClickHandler::getPressed();
-	if (dynamic_cast<VoiceSeekClickHandler*>(pressedHandler.get())) {
+	if (dynamic_cast<VoiceSeekClickHandler*>(pressedHandler.get())
+		|| hasCopyRestriction()) {
 		return nullptr;
 	}
 
@@ -3081,7 +3093,6 @@ void ConfirmSendNowSelectedItems(not_null<ListWidget*> widget) {
 		clearSelection);
 }
 
-
 CopyRestrictionType CopyRestrictionTypeFor(
 		not_null<PeerData*> peer) {
 	return peer->allowsForwarding()
@@ -3091,4 +3102,18 @@ CopyRestrictionType CopyRestrictionTypeFor(
 		: CopyRestrictionType::Group;
 }
 
+CopyRestrictionType SelectRestrictionTypeFor(
+		not_null<PeerData*> peer) {
+	if (const auto chat = peer->asChat()) {
+		return chat->canDeleteMessages()
+			? CopyRestrictionType::None
+			: CopyRestrictionTypeFor(peer);
+	} else if (const auto channel = peer->asChannel()) {
+		return channel->canDeleteMessages()
+			? CopyRestrictionType::None
+			: CopyRestrictionTypeFor(peer);
+	}
+	return CopyRestrictionType::None;
+}
+
 } // namespace HistoryView

Telegram/SourceFiles/history/view/history_view_list_widget.h

@@ -101,6 +101,7 @@ public:
 	virtual void listHandleViaClick(not_null<UserData*> bot) = 0;
 	virtual not_null<Ui::ChatTheme*> listChatTheme() = 0;
 	virtual CopyRestrictionType listCopyRestrictionType() = 0;
+	virtual CopyRestrictionType listSelectRestrictionType() = 0;
 
 };
 
@@ -213,6 +214,7 @@ public:
 
 	[[nodiscard]] bool hasCopyRestriction() const;
 	[[nodiscard]] bool showCopyRestriction();
+	[[nodiscard]] bool hasSelectRestriction() const;
 
 	// AbstractTooltipShower interface
 	QString tooltipText() const override;
@@ -616,5 +618,7 @@ void ConfirmSendNowSelectedItems(not_null<ListWidget*> widget);
 
 [[nodiscard]] CopyRestrictionType CopyRestrictionTypeFor(
 	not_null<PeerData*> peer);
+[[nodiscard]] CopyRestrictionType SelectRestrictionTypeFor(
+	not_null<PeerData*> peer);
 
 } // namespace HistoryView

Telegram/SourceFiles/history/view/history_view_pinned_section.cpp

@@ -680,6 +680,10 @@ CopyRestrictionType PinnedWidget::listCopyRestrictionType() {
 	return CopyRestrictionTypeFor(_history->peer);
 }
 
+CopyRestrictionType PinnedWidget::listSelectRestrictionType() {
+	return SelectRestrictionTypeFor(_history->peer);
+}
+
 void PinnedWidget::confirmDeleteSelected() {
 	ConfirmDeleteSelectedItems(_inner);
 }

Telegram/SourceFiles/history/view/history_view_pinned_section.h

@@ -104,6 +104,7 @@ public:
 	void listHandleViaClick(not_null<UserData*> bot) override;
 	not_null<Ui::ChatTheme*> listChatTheme() override;
 	CopyRestrictionType listCopyRestrictionType() override;
+	CopyRestrictionType listSelectRestrictionType() override;
 
 protected:
 	void resizeEvent(QResizeEvent *e) override;

Telegram/SourceFiles/history/view/history_view_replies_section.cpp

@@ -1931,6 +1931,10 @@ CopyRestrictionType RepliesWidget::listCopyRestrictionType() {
 	return CopyRestrictionTypeFor(_history->peer);
 }
 
+CopyRestrictionType RepliesWidget::listSelectRestrictionType() {
+	return SelectRestrictionTypeFor(_history->peer);
+}
+
 void RepliesWidget::confirmDeleteSelected() {
 	ConfirmDeleteSelectedItems(_inner);
 }

Telegram/SourceFiles/history/view/history_view_replies_section.h

@@ -139,6 +139,7 @@ public:
 	void listHandleViaClick(not_null<UserData*> bot) override;
 	not_null<Ui::ChatTheme*> listChatTheme() override;
 	CopyRestrictionType listCopyRestrictionType() override;
+	CopyRestrictionType listSelectRestrictionType() override;
 
 protected:
 	void resizeEvent(QResizeEvent *e) override;

Telegram/SourceFiles/history/view/history_view_scheduled_section.cpp

@@ -1235,6 +1235,10 @@ CopyRestrictionType ScheduledWidget::listCopyRestrictionType() {
 	return CopyRestrictionType::None;
 }
 
+CopyRestrictionType ScheduledWidget::listSelectRestrictionType() {
+	return CopyRestrictionType::None;
+}
+
 void ScheduledWidget::confirmSendNowSelected() {
 	ConfirmSendNowSelectedItems(_inner);
 }

Telegram/SourceFiles/history/view/history_view_scheduled_section.h

@@ -120,6 +120,7 @@ public:
 	void listHandleViaClick(not_null<UserData*> bot) override;
 	not_null<Ui::ChatTheme*> listChatTheme() override;
 	CopyRestrictionType listCopyRestrictionType() override;
+	CopyRestrictionType listSelectRestrictionType() override;
 
 protected:
 	void resizeEvent(QResizeEvent *e) override;