Added translate ability to context menu.

Telegram/Resources/langs/lang.strings

@@ -2258,6 +2258,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_context_delete_from_disk" = "Delete from disk";
 "lng_context_delete_all_files" = "Delete all files";
 "lng_context_save_custom_sound" = "Save for notifications";
+"lng_context_translate" = "Translate";
+"lng_context_translate_selected" = "Translate Selected Text";
 
 "lng_context_animated_emoji" = "This message contains emoji from **{name} pack**.";
 "lng_context_animated_emoji_many#one" = "This message contains emoji from **{count} pack**.";

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -52,6 +52,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/report_messages_box.h"
 #include "boxes/sticker_set_box.h"
 #include "boxes/premium_preview_box.h"
+#include "boxes/translate_box.h"
 #include "chat_helpers/message_field.h"
 #include "chat_helpers/emoji_interactions.h"
 #include "history/history_widget.h"
@@ -2267,6 +2268,13 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 					: tr::lng_context_copy_selected(tr::now)),
 				[=] { copySelectedText(); },
 				&st::menuIconCopy);
+			_menu->addAction(tr::lng_context_translate_selected({}), [=] {
+				_controller->show(Box(
+					Ui::TranslateBox,
+					item->history()->peer,
+					MsgId(),
+					getSelectedText().rich));
+			}, &st::menuIconTranslate);
 		}
 		addItemActions(item, item);
 		if (!selectedState.count) {
@@ -2358,6 +2366,13 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 					[=] { copySelectedText(); },
 					&st::menuIconCopy);
 			}
+			_menu->addAction(tr::lng_context_translate_selected({}), [=] {
+				_controller->show(Box(
+					Ui::TranslateBox,
+					item->history()->peer,
+					MsgId(),
+					getSelectedText().rich));
+			}, &st::menuIconTranslate);
 			addItemActions(item, item);
 		} else {
 			addItemActions(item, albumPartItem);
@@ -2415,6 +2430,18 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 						copyContextText(itemId);
 					}, &st::menuIconCopy);
 				}
+				if (!item->isService()
+					&& view
+					&& actionText.isEmpty()
+					&& (view->hasVisibleText() || mediaHasTextForCopy)) {
+					_menu->addAction(tr::lng_context_translate(tr::now), [=] {
+						_controller->show(Box(
+							Ui::TranslateBox,
+							item->history()->peer,
+							item->fullId().msg,
+							item->originalText()));
+					}, &st::menuIconTranslate);
+				}
 			}
 		}
 		if (!actionText.isEmpty() && !hasCopyRestriction(item)) {

Telegram/SourceFiles/history/view/history_view_context_menu.cpp

@@ -41,6 +41,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/report_messages_box.h"
 #include "boxes/sticker_set_box.h"
 #include "boxes/stickers_box.h"
+#include "boxes/translate_box.h"
 #include "data/data_photo.h"
 #include "data/data_photo_media.h"
 #include "data/data_document.h"
@@ -1004,6 +1005,18 @@ base::unique_qptr<Ui::PopupMenu> FillContextMenu(
 			}
 		}, &st::menuIconCopy);
 	}
+	if (request.overSelection) {
+		const auto owner = &view->history()->owner();
+		result->addAction(tr::lng_context_translate_selected(tr::now), [=] {
+			if (const auto item = owner->message(itemId)) {
+				list->controller()->show(Box(
+					Ui::TranslateBox,
+					item->history()->peer,
+					MsgId(),
+					list->getSelectedText().rich));
+			}
+		}, &st::menuIconTranslate);
+	}
 
 	AddTopMessageActions(result, request, list);
 	if (lnkPhoto && request.selectedItems.empty()) {
@@ -1038,6 +1051,17 @@ base::unique_qptr<Ui::PopupMenu> FillContextMenu(
 				}
 			}, &st::menuIconCopy);
 		}
+		if (!link && (view->hasVisibleText() || mediaHasTextForCopy)) {
+			result->addAction(tr::lng_context_translate(tr::now), [=] {
+				if (const auto item = owner->message(itemId)) {
+					list->controller()->show(Box(
+						Ui::TranslateBox,
+						item->history()->peer,
+						item->fullId().msg,
+						item->originalText()));
+				}
+			}, &st::menuIconTranslate);
+		}
 	}
 
 	if (!view || !list->hasCopyRestriction(view->data())) {

Telegram/SourceFiles/ui/menu_icons.style

@@ -92,6 +92,7 @@ menuIconSearch: icon {{ "menu/search", menuIconColor }};
 menuIconStartStream: icon {{ "menu/start_stream", menuIconColor }};
 menuIconStartStreamWith: icon {{ "menu/start_stream_with", menuIconColor }};
 menuIconVideoChat: icon {{ "menu/video_chat", menuIconColor }};
+menuIconTranslate: icon {{ "menu/translate", menuIconColor }};
 
 menuIconTTLAny: icon {{ "menu/auto_delete_plain", menuIconColor }};
 menuIconTTLAnyTextPosition: point(11px, 22px);