Save IV window geometry.

Telegram/SourceFiles/core/application.cpp

@@ -44,6 +44,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_updates.h"
 #include "calls/calls_instance.h"
 #include "countries/countries_manager.h"
+#include "iv/iv_delegate_impl.h"
 #include "iv/iv_instance.h"
 #include "lang/lang_file_parser.h"
 #include "lang/lang_translator.h"
@@ -163,7 +164,8 @@ Application::Application()
 , _domain(std::make_unique<Main::Domain>(cDataFile()))
 , _exportManager(std::make_unique<Export::Manager>())
 , _calls(std::make_unique<Calls::Instance>())
-, _iv(std::make_unique<Iv::Instance>())
+, _iv(std::make_unique<Iv::Instance>(
+	Ui::CreateChild<Iv::DelegateImpl>(this)))
 , _langpack(std::make_unique<Lang::Instance>())
 , _langCloudManager(std::make_unique<Lang::CloudManager>(langpack()))
 , _emojiKeywords(std::make_unique<ChatHelpers::EmojiKeywords>())
@@ -1368,6 +1370,25 @@ Window::Controller *Application::windowFor(
 	return activePrimaryWindow();
 }
 
+Window::Controller *Application::findWindow(
+		not_null<QWidget*> widget) const {
+	const auto window = widget->window();
+	if (_lastActiveWindow && _lastActiveWindow->widget() == window) {
+		return _lastActiveWindow;
+	}
+	for (const auto &[account, primary] : _primaryWindows) {
+		if (primary->widget() == window) {
+			return primary.get();
+		}
+	}
+	for (const auto &[history, secondary] : _secondaryWindows) {
+		if (secondary->widget() == window) {
+			return secondary.get();
+		}
+	}
+	return nullptr;
+}
+
 Window::Controller *Application::activeWindow() const {
 	return _lastActiveWindow;
 }