Added ability to show or hide spoilers from outside.

ui/spoiler_click_handler.cpp

@@ -30,3 +30,7 @@ crl::time SpoilerClickHandler::startMs() const {
 void SpoilerClickHandler::setStartMs(crl::time value) {
 	_startMs = value;
 }
+
+void SpoilerClickHandler::setShown(bool value) {
+	_shown = value;
+}

ui/spoiler_click_handler.h

@@ -19,6 +19,7 @@ public:
 	void onClick(ClickContext context) const override;
 
 	[[nodiscard]] bool shown() const;
+	void setShown(bool value);
 	[[nodiscard]] crl::time startMs() const;
 	void setStartMs(crl::time value);
 

ui/text/text.cpp

@@ -3156,14 +3156,29 @@ void String::setLink(uint16 lnkIndex, const ClickHandlerPtr &lnk) {
 void String::setSpoiler(
 		uint16 lnkIndex,
 		const std::shared_ptr<SpoilerClickHandler> &lnk) {
-	if (!lnkIndex || lnkIndex > _spoilers.size()) return;
+	if (!lnkIndex || lnkIndex > _spoilers.size()) {
+		return;
+	}
 	_spoilers[lnkIndex - 1] = lnk;
 }
 
+void String::setSpoilerShown(uint16 lnkIndex, bool shown) {
+	if (!lnkIndex
+		|| (lnkIndex > _spoilers.size())
+		|| !_spoilers[lnkIndex - 1]) {
+		return;
+	}
+	_spoilers[lnkIndex - 1]->setShown(shown);
+}
+
 bool String::hasLinks() const {
 	return !_links.isEmpty();
 }
 
+int String::spoilersCount() const {
+	return _spoilers.size();
+}
+
 bool String::hasSkipBlock() const {
 	return _blocks.empty() ? false : _blocks.back()->type() == TextBlockTSkip;
 }

ui/text/text.h

@@ -135,7 +135,11 @@ public:
 
 	void setLink(uint16 lnkIndex, const ClickHandlerPtr &lnk);
 	bool hasLinks() const;
-	void setSpoiler(uint16 lnkIndex, const std::shared_ptr<SpoilerClickHandler> &lnk);
+	void setSpoiler(
+		uint16 lnkIndex,
+		const std::shared_ptr<SpoilerClickHandler> &lnk);
+	void setSpoilerShown(uint16 lnkIndex, bool shown);
+	int spoilersCount() const;
 
 	bool hasSkipBlock() const;
 	bool updateSkipBlock(int width, int height);