Suggest sending large texts as files.

2026-07-25 06:54:43 +00:00 · 2026-04-10 19:25:51 +07:00
parent 9a9307ead3
commit 05cf8aaa0f
17 changed files with 444 additions and 34 deletions
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="24px" height="24px" viewBox="96.5 111.3 766.5 766.5" xmlns="http://www.w3.org/2000/svg">
+    <g stroke="none" fill="none" fill-rule="evenodd">
+        <path d="M 229.278 428.274 C 220.345 431.087 209.724 433.028 201.037 428.414 C 195.269 425.35 191.59 419.715 189.754 413.573 C 183.55 392.827 189.646 312.841 194.598 289.706 C 197.361 276.798 201.636 264.234 208.088 252.692 C 225.944 220.748 254.345 196.434 289.828 186.42 C 299.548 183.676 309.688 182.14 319.754 181.423 C 366.51 178.095 414.437 180.111 461.345 180.132 C 499.997 180.149 540.285 177.606 578.657 181.934 C 589.925 183.204 601.183 185.766 611.125 191.369 C 638.232 206.647 660.549 233.285 682.155 255.355 L 741.115 315.299 L 790.708 365.561 C 856.391 432.25 853.313 440.991 854.144 532.569 L 854.982 618.399 C 855.281 646.04 857.577 702.741 854.521 727.102 C 852.435 744.448 846.915 761.205 838.282 776.393 C 820.298 808.656 790.121 832.354 754.514 842.176 C 724.089 850.54 664.593 848.635 631.504 848.632 L 502.763 848.626 L 395.022 848.66 C 368.985 848.68 338.582 849.327 312.926 846.33 C 294.671 844.264 277.017 838.552 261.012 829.532 C 228.881 811.132 205.527 780.551 196.236 744.708 C 190.977 725.111 181.752 660.54 192.22 640.91 C 194.552 636.536 200.443 631.193 204.584 628.088 C 212.69 627.794 223.61 625.977 229.827 632.364 C 238.468 641.24 238.784 653.684 239.449 665.298 C 241.05 693.25 237.429 726.072 251.724 751.22 C 263.068 771.178 283.96 788.616 306.011 795.036 C 326.159 800.066 359.183 798.753 380.622 798.749 L 460.193 798.696 L 703.391 798.695 C 736.68 798.43 755.087 795.322 779.818 770.591 C 807.116 743.293 806.834 720.038 807.012 684.161 C 807.237 638.481 802.094 586.261 804.093 541.122 C 797.284 541.268 784.894 540.995 778.473 540.182 L 670.807 540.171 C 620.731 540.215 563.716 547.86 526.38 508.874 C 515.394 497.402 505.295 482.717 501.211 466.939 C 495.154 439.227 496.977 401.501 496.999 372.596 L 497.103 265.614 C 497.25 253.886 497.577 242.161 498.083 230.443 C 460.209 229.51 422.322 229.222 384.438 229.578 C 335.986 229.564 309.732 221.795 269.362 254.551 C 217.116 296.943 257.721 389.29 229.559 427.897 L 229.278 428.274 z M 543.987 230.048 C 569.591 229.725 580.035 227.497 600.857 244.842 C 616.603 257.958 630.079 272.64 644.427 287.248 L 711.181 355.245 L 759.072 403.921 C 769.77 414.798 785.756 430.108 793.914 442.441 C 801.17 453.41 801.179 474.426 802.716 487.848 L 663.551 488.081 C 655.173 488.09 645.943 488.449 637.627 488.107 C 619.637 487.367 594.727 490.338 577.846 484.153 C 545.853 472.432 543.843 436.102 544.247 407.389 C 544.438 393.841 544.247 379.666 544.256 365.887 C 544.495 320.607 544.405 275.326 543.987 230.048 z" fill="#FFFFFF"></path>
+        <path d="M 306.755 391.204 C 311.745 389.305 333.398 408.89 337.28 412.89 C 364.174 440.939 392.794 467.428 419.422 495.698 C 442.291 519.978 433.144 542.942 411.651 563.866 C 381.068 593.638 352.265 625.515 320.324 653.743 C 313.888 659.431 296.743 655.829 288.97 654.425 C 287.039 649.138 280.827 633.452 282.505 628.63 C 289.515 608.489 314.352 590.824 328.353 575.581 C 338.311 564.74 345.544 555.412 356.226 547.597 L 356.28 545.853 C 344.978 549.112 335.336 551.079 323.481 551.267 C 274.259 551.846 224.991 551.501 175.755 551.624 C 155.295 551.676 133.425 553.912 116.627 541.311 C 114.956 537.351 114 533.126 113.802 528.833 C 113.091 514.333 117.1 501.472 133.314 500.562 C 154.052 499.399 174.698 499.879 195.467 499.925 C 239.08 500.336 282.696 500.334 326.309 499.918 C 332.541 499.822 343.551 500.1 347.833 495.685 C 347.436 491.434 313.367 461.839 307.219 455.232 C 291.043 437.85 275.937 429.066 286.23 402.426 C 291.881 397.453 299.873 394.302 306.755 391.204 z" fill="#FFFFFF"></path>
+    </g>
+</svg>
@@ -7841,6 +7841,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_ai_compose_apply_style" = "Apply Style";
 "lng_ai_compose_style_tooltip" = "Choose Style";

+"lng_send_as_file_tooltip" = "Send text as a file.";
+
 // Wnd specific

 "lng_wnd_choose_program_menu" = "Choose Default Program...";
@@ -1443,6 +1443,10 @@ historyAiComposeButtonLetters: icon{{ "chat/ai_letters-20x20", historyComposeIco
 historyAiComposeButtonStar1: icon{{ "chat/ai_star1-20x20", historyComposeIconFg }};
 historyAiComposeButtonStar2: icon{{ "chat/ai_star2-20x20", historyComposeIconFg }};
 historyAiComposeButtonPosition: point(-8px, -4px);
+historySendAsFileButton: IconButton(historyAiComposeButton) {
+	icon: icon {{ "chat/text_to_file-18x18", historyComposeIconFg }};
+	iconOver: icon {{ "chat/text_to_file-18x18", historyComposeIconFgOver }};
+}
 historyAiComposeTooltipSkip: 8px;
 importantTooltipHide: IconButton(defaultIconButton) {
 	width: 34px;
@@ -285,7 +285,10 @@ void DocumentMedia::checkStickerLarge() {
 void DocumentMedia::automaticLoad(
 		Data::FileOrigin origin,
 		const HistoryItem *item) {
-	if (_owner->status != FileReady || loaded() || _owner->cancelled()) {
+	if (_owner->status != FileReady
+		|| loaded()
+		|| _owner->uploading()
+		|| _owner->cancelled()) {
 		return;
 	} else if (!item && !_owner->sticker() && !_owner->isAnimation()) {
 		return;
@@ -273,6 +273,9 @@ HistoryWidget::HistoryWidget(
 , _aiButton(Ui::CreateChild<HistoryView::Controls::ComposeAiButton>(
 	this,
 	st::historyAiComposeButton))
+, _sendAsFile(Ui::CreateChild<Ui::IconButton>(
+	this,
+	st::historySendAsFileButton))
 , _unblock(
 	this,
 	tr::lng_unblock_button(tr::now).toUpper(),
@@ -497,6 +500,7 @@ HistoryWidget::HistoryWidget(

 	setupFastButtonMode();
 	initAiButton();
+	initSendAsFileButton();

 	_fieldCharsCountManager.limitExceeds(
 	) | rpl::on_next([=] {
@@ -534,6 +538,20 @@ HistoryWidget::HistoryWidget(
 	_field->setMimeDataHook(WrappedMessageFieldMimeHook([=](
 			not_null<const QMimeData*> data,
 			Ui::InputField::MimeAction action) {
+		const auto pasteResult = Ui::CheckLargeTextPaste(_field, data);
+		if (pasteResult.exceeds) {
+			if (action == Ui::InputField::MimeAction::Check) {
+				return true;
+			}
+			const auto text = _field->getTextWithTags();
+			const auto cursor = _field->textCursor();
+			sendTextAsFile(
+				pasteResult.resultingText,
+				text,
+				cursor.position(),
+				cursor.anchor());
+			return true;
+		}
 		if (action == Ui::InputField::MimeAction::Check) {
 			return canSendFiles(data);
 		} else if (action == Ui::InputField::MimeAction::Insert) {
@@ -1295,6 +1313,7 @@ void HistoryWidget::initVoiceRecordBar() {
 		_field->setDisabled(active);
 		controller()->widget()->setInnerFocus();
 		updateAiButtonVisibility();
+		updateSendAsFileVisibility();
 	}, lifetime());

 	_voiceRecordBar->hideFast();
@@ -1314,9 +1333,65 @@ void HistoryWidget::initAiButton() {
 	_aiTooltipManager = std::make_unique<HistoryView::Controls::AiTooltipManager>(
 		this,
 		_aiButton,
+		tr::lng_ai_compose_tooltip(tr::rich),
+		"ai_compose_tooltip_hidden"_cs,
 		[=] { return width(); });
 }

+void HistoryWidget::initSendAsFileButton() {
+	_sendAsFile->hide();
+	_sendAsFile->setClickedCallback([=] {
+		if (_sendAsFileTooltipManager) {
+			_sendAsFileTooltipManager->hideAndRemember();
+		}
+		const auto cursor = _field->textCursor();
+		const auto text = _field->getTextWithTags();
+		sendTextAsFile(text.text, text, cursor.position(), cursor.anchor());
+	});
+
+	_sendAsFileTooltipManager = std::make_unique<HistoryView::Controls::AiTooltipManager>(
+		this,
+		_sendAsFile,
+		tr::lng_send_as_file_tooltip(tr::rich),
+		"send_as_file_tooltip_hidden"_cs,
+		[=] { return width(); });
+}
+
+void HistoryWidget::sendTextAsFile(
+		const QString &fileText,
+		TextWithTags restoreText,
+		int restorePosition,
+		int restoreAnchor) {
+	auto result = Ui::PrepareTextAsFile(fileText);
+
+	_field->setTextWithTags({});
+
+	auto box = Box<SendFilesBox>(
+		controller(),
+		std::move(result),
+		TextWithTags{},
+		_peer,
+		Api::SendType::Normal,
+		sendMenuDetails());
+	box->setConfirmedCallback(crl::guard(this, [=](
+			std::shared_ptr<Ui::PreparedBundle> bundle,
+			Api::SendOptions options) {
+		sendingFilesConfirmed(std::move(bundle), options);
+	}));
+	box->setCancelledCallback(crl::guard(this, [=] {
+		_field->setTextWithTags(restoreText);
+		auto cursor = _field->textCursor();
+		cursor.setPosition(restoreAnchor);
+		if (restorePosition != restoreAnchor) {
+			cursor.setPosition(restorePosition, QTextCursor::KeepAnchor);
+		}
+		_field->setTextCursor(cursor);
+	}));
+
+	Window::ActivateWindow(controller());
+	controller()->show(std::move(box));
+}
+
 void HistoryWidget::initTabbedSelector() {
 	refreshTabbedPanel();

@@ -1830,6 +1905,7 @@ void HistoryWidget::orderWidgets() {
 	_voiceRecordBar->raise();
 	_send->raise();
 	_aiButton->raise();
+	_sendAsFile->raise();
 	_topBars->raise();
 	if (_businessBotStatus) {
 		_businessBotStatus->bar().raise();
@@ -1883,6 +1959,9 @@ void HistoryWidget::orderWidgets() {
 	if (_aiTooltipManager) {
 		_aiTooltipManager->raise();
 	}
+	if (_sendAsFileTooltipManager) {
+		_sendAsFileTooltipManager->raise();
+	}
 	_attachDragAreas.document->raise();
 	_attachDragAreas.photo->raise();
 }
@@ -1957,6 +2036,7 @@ void HistoryWidget::fieldChanged() {
 		updateControlsGeometry();
 	}
 	updateAiButtonVisibility();
+	updateSendAsFileVisibility();

 	_saveCloudDraftTimer.cancel();
 	if (!_peer || !(_textUpdateEvents & TextUpdateEvent::SaveDraft)) {
@@ -3748,6 +3828,7 @@ void HistoryWidget::updateControlsVisibility() {
 	}
 	//checkTabbedSelectorToggleTooltip();
 	updateAiButtonVisibility();
+	updateSendAsFileVisibility();
 	updateMouseTracking();
 }

@@ -6115,6 +6196,7 @@ void HistoryWidget::toggleKeyboard(bool manual) {
 	}
 	updateControlsGeometry();
 	updateAiButtonVisibility();
+	updateSendAsFileVisibility();
 	updateFieldPlaceholder();
 	if (_botKeyboardHide->isHidden()
 		&& canWriteMessage()
@@ -6264,6 +6346,12 @@ bool HistoryWidget::hasEnoughLinesForAi() const {
 		&& Ui::HasEnoughLinesForAi(&session(), _field);
 }

+bool HistoryWidget::textExceedsMaxSize() const {
+	return _history
+		&& !_voiceRecordBar->isActive()
+		&& _field->getLastText().size() > MaxMessageSize;
+}
+
 void HistoryWidget::updateAiButtonVisibility() {
 	const auto hidden = !hasEnoughLinesForAi()
 		|| !_send->isVisible()
@@ -6292,6 +6380,34 @@ void HistoryWidget::updateAiButtonGeometry() {
 	}
 }

+void HistoryWidget::updateSendAsFileVisibility() {
+	const auto hidden = !textExceedsMaxSize()
+		|| _send->isHidden()
+		|| _field->isHidden()
+		|| editingMessage();
+	if (_sendAsFile->isHidden() == hidden) {
+		return;
+	}
+	_sendAsFile->setVisible(!hidden);
+	if (!hidden) {
+		updateSendAsFileGeometry();
+	}
+	if (_sendAsFileTooltipManager) {
+		_sendAsFileTooltipManager->updateVisibility(!hidden);
+	}
+}
+
+void HistoryWidget::updateSendAsFileGeometry() {
+	if (_sendAsFile->isHidden()) {
+		return;
+	}
+	const auto x = _send->x() + _send->width() - _sendAsFile->width();
+	_sendAsFile->move(QPoint(x, _field->y()) + st::historyAiComposeButtonPosition);
+	if (_sendAsFileTooltipManager) {
+		_sendAsFileTooltipManager->updateGeometry();
+	}
+}
+
 void HistoryWidget::moveFieldControls() {
 	auto keyboardHeight = 0;
 	auto bottom = height();
@@ -6362,6 +6478,7 @@ void HistoryWidget::moveFieldControls() {
 		_ttlInfo->move(width() - right - _ttlInfo->width(), buttonsBottom);
 	}
 	updateAiButtonGeometry();
+	updateSendAsFileGeometry();

 	_fieldBarCancel->moveToRight(
 		0,
@@ -6466,6 +6583,7 @@ void HistoryWidget::inlineBotChanged() {
 void HistoryWidget::fieldResized() {
 	moveFieldControls();
 	updateAiButtonVisibility();
+	updateSendAsFileVisibility();
 	updateHistoryGeometry();
 	updateField();
 }
@@ -128,7 +128,8 @@ class WebpageProcessor;
 class CharactersLimitLabel;
 class PhotoEditSpoilerManager;
 class ComposeAiButton;
-class AiTooltipManager;
+class ComposeTooltipManager;
+using AiTooltipManager = ComposeTooltipManager;
 struct VoiceToSend;
 } // namespace HistoryView::Controls

@@ -529,12 +530,21 @@ private:
 	void updateAiButtonVisibility();
 	void updateAiButtonGeometry();
 	void showAiComposeBox();
+	void initSendAsFileButton();
+	void sendTextAsFile(
+		const QString &fileText,
+		TextWithTags restoreText,
+		int restorePosition,
+		int restoreAnchor);
+	void updateSendAsFileVisibility();
+	void updateSendAsFileGeometry();
 	[[nodiscard]] bool canSendAiComposeDirect() const;

 	[[nodiscard]] MsgId resolveReplyToTopicRootId();
 	[[nodiscard]] Data::ForumTopic *resolveReplyToTopic();
 	[[nodiscard]] bool canWriteMessage() const;
 	[[nodiscard]] bool hasEnoughLinesForAi() const;
+	[[nodiscard]] bool textExceedsMaxSize() const;
 	void orderWidgets();

 	[[nodiscard]] InlineBotQuery parseInlineBotQuery() const;
@@ -835,6 +845,7 @@ private:

 	const std::shared_ptr<Ui::SendButton> _send;
 	HistoryView::Controls::ComposeAiButton * const _aiButton = nullptr;
+	Ui::IconButton * const _sendAsFile = nullptr;
 	object_ptr<Ui::FlatButton> _unblock;
 	object_ptr<Ui::FlatButton> _botStart;
 	object_ptr<Ui::FlatButton> _joinChannel;
@@ -867,6 +878,7 @@ private:
 	rpl::lifetime _subsectionTabsLifetime;
 	rpl::lifetime _subsectionCheckLifetime;
 	std::unique_ptr<HistoryView::Controls::AiTooltipManager> _aiTooltipManager;
+	std::unique_ptr<HistoryView::Controls::AiTooltipManager> _sendAsFileTooltipManager;
 	std::shared_ptr<Ui::ChatStyle> _fieldChatStyle;
 	bool _cmdStartShown = false;
 	object_ptr<Ui::InputField> _field;
@@ -9,30 +9,27 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL

 #include "core/application.h"
 #include "core/core_settings.h"
-#include "history/view/controls/history_view_compose_ai_button.h"
 #include "lang/lang_keys.h"
 #include "ui/widgets/tooltip.h"
 #include "styles/style_chat_helpers.h"
 #include "styles/style_widgets.h"

 namespace HistoryView::Controls {
-namespace {

-constexpr auto kAiComposeTooltipHiddenPref = "ai_compose_tooltip_hidden"_cs;
-
-} // namespace
-
-AiTooltipManager::AiTooltipManager(
+ComposeTooltipManager::ComposeTooltipManager(
 	not_null<QWidget*> parent,
-	not_null<ComposeAiButton*> button,
+	not_null<Ui::RpWidget*> button,
+	rpl::producer<TextWithEntities> text,
+	base::const_string prefKey,
 	Fn<int()> widthProvider)
 : _button(button)
+, _prefKey(prefKey)
 , _widthProvider(std::move(widthProvider)) {
 	_tooltip.reset(Ui::CreateChild<Ui::ImportantTooltip>(
 		parent,
 		Ui::MakeTooltipWithClose(
 			parent,
-			tr::lng_ai_compose_tooltip(tr::rich),
+			std::move(text),
 			st::historyMessagesTTLLabel.minWidth,
 			st::ttlMediaImportantTooltipLabel,
 			st::importantTooltipHide,
@@ -48,21 +45,17 @@ AiTooltipManager::AiTooltipManager(
 	}, _tooltip->lifetime());
 }

-void AiTooltipManager::hideAndRemember() {
-	if (!Core::App().settings().readPref<bool>(
-			kAiComposeTooltipHiddenPref)) {
-		Core::App().settings().writePref<bool>(
-			kAiComposeTooltipHiddenPref,
-			true);
+void ComposeTooltipManager::hideAndRemember() {
+	if (!Core::App().settings().readPref<bool>(_prefKey)) {
+		Core::App().settings().writePref<bool>(_prefKey, true);
 	}
 	_shown = false;
 	_tooltip->toggleAnimated(false);
 }

-void AiTooltipManager::updateVisibility(bool buttonShown) {
+void ComposeTooltipManager::updateVisibility(bool buttonShown) {
 	const auto showTooltip = buttonShown
-		&& !Core::App().settings().readPref<bool>(
-			kAiComposeTooltipHiddenPref);
+		&& !Core::App().settings().readPref<bool>(_prefKey);
 	if (showTooltip) {
 		updateGeometry();
 	}
@@ -73,7 +66,7 @@ void AiTooltipManager::updateVisibility(bool buttonShown) {
 	}
 }

-void AiTooltipManager::updateGeometry() {
+void ComposeTooltipManager::updateGeometry() {
 	if (_button->isHidden()) {
 		return;
 	}
@@ -90,7 +83,7 @@ void AiTooltipManager::updateGeometry() {
 	_tooltip->pointAt(geometry, RectPart::Top, countPosition);
 }

-void AiTooltipManager::raise() {
+void ComposeTooltipManager::raise() {
 	_tooltip->raise();
 }

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once

+#include "base/const_string.h"
 #include "base/unique_qptr.h"

 namespace Ui {
@@ -16,13 +17,13 @@ class RpWidget;

 namespace HistoryView::Controls {

-class ComposeAiButton;
-
-class AiTooltipManager final {
+class ComposeTooltipManager final {
 public:
-	AiTooltipManager(
+	ComposeTooltipManager(
 		not_null<QWidget*> parent,
-		not_null<ComposeAiButton*> button,
+		not_null<Ui::RpWidget*> button,
+		rpl::producer<TextWithEntities> text,
+		base::const_string prefKey,
 		Fn<int()> widthProvider);

 	void hideAndRemember();
@@ -31,11 +32,14 @@ public:
 	void raise();

 private:
-	const not_null<ComposeAiButton*> _button;
+	const not_null<Ui::RpWidget*> _button;
+	const base::const_string _prefKey;
 	const Fn<int()> _widthProvider;
 	base::unique_qptr<Ui::ImportantTooltip> _tooltip;
 	bool _shown = false;

 };

+using AiTooltipManager = ComposeTooltipManager;
+
 } // namespace HistoryView::Controls
@@ -16,6 +16,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/unixtime.h"
 #include "boxes/compose_ai_box.h"
 #include "boxes/edit_caption_box.h"
+#include "boxes/send_files_box.h"
 #include "calls/group/ui/calls_group_stars_coloring.h"
 #include "calls/group/calls_group_stars_box.h"
 #include "chat_helpers/compose/compose_show.h"
@@ -71,6 +72,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/controls/history_view_voice_record_bar.h"
 #include "history/view/controls/history_view_webpage_processor.h"
 #include "history/view/history_view_reply.h"
+#include "history/view/history_view_schedule_box.h"
 #include "history/view/history_view_webpage_preview.h"
 #include "inline_bots/bot_attach_web_view.h"
 #include "inline_bots/inline_results_widget.h"
@@ -1034,6 +1036,11 @@ ComposeControls::ComposeControls(
 , _aiButton(Ui::CreateChild<Controls::ComposeAiButton>(
 	_wrap.get(),
 	st::historyAiComposeButton))
+, _sendAsFile(_features.attachments
+	? Ui::CreateChild<Ui::IconButton>(
+		_wrap.get(),
+		st::historySendAsFileButton)
+	: nullptr)
 , _like(_features.likes
 	? Ui::CreateChild<Ui::IconButton>(_wrap.get(), _st.like)
 	: nullptr)
@@ -1833,8 +1840,23 @@ rpl::producer<std::optional<bool>> ComposeControls::attachRequests() const {
 }

 void ComposeControls::setMimeDataHook(MimeDataHook hook) {
-	_field->setMimeDataHook(
-		WrappedMessageFieldMimeHook(std::move(hook), _field));
+	if (_sendAsFile) {
+		_field->setMimeDataHook(
+			WrappedMessageFieldMimeHook(
+				[=, originalHook = std::move(hook)](
+						not_null<const QMimeData*> data,
+						Ui::InputField::MimeAction action) {
+					if (checkLargeTextPaste(data, action)) {
+						return true;
+					}
+					return originalHook
+						? originalHook(data, action)
+						: false;
+				}, _field));
+	} else {
+		_field->setMimeDataHook(
+			WrappedMessageFieldMimeHook(std::move(hook), _field));
+	}
 }

 bool ComposeControls::confirmMediaEdit(Ui::PreparedList &list) {
@@ -1906,9 +1928,15 @@ void ComposeControls::showFinished() {
 	}
 	updateWrappingVisibility();
 	_aiButton->raise();
+	if (_sendAsFile) {
+		_sendAsFile->raise();
+	}
 	if (_aiTooltipManager) {
 		_aiTooltipManager->raise();
 	}
+	if (_sendAsFileTooltipManager) {
+		_sendAsFileTooltipManager->raise();
+	}
 	_voiceRecordBar->orderControls();
 }

@@ -2040,6 +2068,7 @@ void ComposeControls::init() {
 	initTabbedSelector();
 	initSendButton();
 	initAiButton();
+	initSendAsFileButton();
 	initWriteRestriction();
 	initVoiceRecordBar();
 	initKeyHandler();
@@ -2349,11 +2378,13 @@ void ComposeControls::initField() {
 	) | rpl::on_next([=] {
 		updateHeight();
 		updateAiButtonVisibility();
+		updateSendAsFileVisibility();
 	}, _field->lifetime());
 	_field->changes(
 	) | rpl::on_next([=] {
 		fieldChanged();
 		updateAiButtonVisibility();
+		updateSendAsFileVisibility();
 	}, _field->lifetime());
 #ifdef Q_OS_MAC
 	// Removed an ability to insert text from the menu bar
@@ -3210,6 +3241,7 @@ void ComposeControls::initVoiceRecordBar() {
 			_recording = false;
 		}
 		updateAiButtonVisibility();
+		updateSendAsFileVisibility();
 	}, _wrap->lifetime());

 	_voiceRecordBar->setStartRecordingFilter([=] {
@@ -3308,9 +3340,80 @@ void ComposeControls::initAiButton() {
 	_aiTooltipManager = std::make_unique<Controls::AiTooltipManager>(
 		_wrap.get(),
 		_aiButton,
+		tr::lng_ai_compose_tooltip(tr::rich),
+		"ai_compose_tooltip_hidden"_cs,
 		[=] { return _wrap->width(); });
 }

+void ComposeControls::initSendAsFileButton() {
+	if (!_sendAsFile) {
+		return;
+	}
+	_sendAsFile->hide();
+	_sendAsFile->setClickedCallback([=] {
+		if (_sendAsFileTooltipManager) {
+			_sendAsFileTooltipManager->hideAndRemember();
+		}
+		const auto text = _field->getTextWithTags();
+		auto restore = restoreTextCallback(QString());
+		fireSendTextAsFile(text.text, std::move(restore));
+	});
+
+	_sendAsFileTooltipManager = std::make_unique<Controls::AiTooltipManager>(
+		_wrap.get(),
+		_sendAsFile,
+		tr::lng_send_as_file_tooltip(tr::rich),
+		"send_as_file_tooltip_hidden"_cs,
+		[=] { return _wrap->width(); });
+}
+
+void ComposeControls::setSendAsFileConfirmed(
+		Fn<void(std::shared_ptr<Ui::PreparedBundle>, Api::SendOptions)> confirmed) {
+	_sendAsFileConfirmed = std::move(confirmed);
+}
+
+void ComposeControls::fireSendTextAsFile(
+		const QString &fileText,
+		Fn<void()> restoreText) {
+	if (!_sendAsFileConfirmed || !_history) {
+		return;
+	}
+	const auto peer = _history->peer;
+	const auto sendType = (_mode == Mode::Scheduled)
+		? (CanScheduleUntilOnline(peer)
+			? Api::SendType::ScheduledToUser
+			: Api::SendType::Scheduled)
+		: Api::SendType::Normal;
+	_show->show(Box<SendFilesBox>(SendFilesBoxDescriptor{
+		.show = _show,
+		.list = Ui::PrepareTextAsFile(fileText),
+		.caption = TextWithTags{},
+		.toPeer = peer,
+		.limits = DefaultLimitsForPeer(peer),
+		.check = DefaultCheckForPeer(_show, peer),
+		.sendType = sendType,
+		.sendMenuDetails = _sendMenuDetails,
+		.stOverride = &_st,
+		.confirmed = _sendAsFileConfirmed,
+		.cancelled = std::move(restoreText),
+	}));
+}
+
+bool ComposeControls::checkLargeTextPaste(
+		not_null<const QMimeData*> data,
+		Ui::InputField::MimeAction action) {
+	const auto result = Ui::CheckLargeTextPaste(_field, data);
+	if (!result.exceeds) {
+		return false;
+	}
+	if (action == Ui::InputField::MimeAction::Check) {
+		return true;
+	}
+	auto restore = restoreTextCallback(QString());
+	fireSendTextAsFile(result.resultingText, std::move(restore));
+	return true;
+}
+
 void ComposeControls::updateWrappingVisibility() {
 	const auto &restriction = _writeRestriction.current();
 	const auto restricted = !restriction.empty() && _writeRestricted;
@@ -3323,6 +3426,7 @@ void ComposeControls::updateWrappingVisibility() {
 	_wrap->setVisible(!hidden && !restricted);
 	updateControlsParents();
 	updateAiButtonVisibility();
+	updateSendAsFileVisibility();
 	if (!hidden && !restricted) {
 		updateControlsGeometry(_wrap->size());
 		_wrap->raise();
@@ -3514,6 +3618,7 @@ void ComposeControls::updateControlsGeometry(QSize size) {
 		_ttlInfo->move(size.width() - right - _ttlInfo->width(), buttonsTop);
 	}
 	updateAiButtonGeometry();
+	updateSendAsFileGeometry();

 	_voiceRecordBar->resizeToWidth(size.width());
 	_voiceRecordBar->moveToLeft(
@@ -3553,6 +3658,7 @@ void ComposeControls::updateControlsVisibility() {
 		_starsReaction->show();
 	}
 	updateAiButtonVisibility();
+	updateSendAsFileVisibility();
 }

 void ComposeControls::updateAiButtonVisibility() {
@@ -3584,6 +3690,37 @@ void ComposeControls::updateAiButtonGeometry() {
 	}
 }

+void ComposeControls::updateSendAsFileVisibility() {
+	if (!_sendAsFile) {
+		return;
+	}
+	const auto hidden = !textExceedsMaxSize()
+		|| _wrap->isHidden()
+		|| _recording.current()
+		|| _field->isHidden();
+	if (_sendAsFile->isHidden() == hidden) {
+		return;
+	}
+	_sendAsFile->setVisible(!hidden);
+	if (!hidden) {
+		updateSendAsFileGeometry();
+	}
+	if (_sendAsFileTooltipManager) {
+		_sendAsFileTooltipManager->updateVisibility(!hidden);
+	}
+}
+
+void ComposeControls::updateSendAsFileGeometry() {
+	if (!_sendAsFile || _sendAsFile->isHidden()) {
+		return;
+	}
+	const auto x = _send->x() + _send->width() - _sendAsFile->width();
+	_sendAsFile->move(QPoint(x, _field->y()) + st::historyAiComposeButtonPosition);
+	if (_sendAsFileTooltipManager) {
+		_sendAsFileTooltipManager->updateGeometry();
+	}
+}
+
 bool ComposeControls::updateLikeShown() {
 	auto shown = _like && !HasSendText(_field);
 	if (_likeShown != shown) {
@@ -3646,6 +3783,12 @@ bool ComposeControls::hasEnoughLinesForAi() const {
 		&& Ui::HasEnoughLinesForAi(&session(), _field);
 }

+bool ComposeControls::textExceedsMaxSize() const {
+	return _history
+		&& !_recording.current()
+		&& _field->getLastText().size() > MaxMessageSize;
+}
+
 bool ComposeControls::updateBotCommandShown() {
 	auto shown = false;
 	const auto peer = _history ? _history->peer.get() : nullptr;
@@ -68,6 +68,7 @@ class EmojiButton;
 class SendAsButton;
 class SilentToggle;
 class DropdownMenu;
+struct PreparedBundle;
 struct PreparedList;
 struct SendStarButtonState;
 class ReactionFlyAnimation;
@@ -102,7 +103,8 @@ class TTLButton;
 class WebpageProcessor;
 class CharactersLimitLabel;
 class ComposeAiButton;
-class AiTooltipManager;
+class ComposeTooltipManager;
+using AiTooltipManager = ComposeTooltipManager;
 } // namespace HistoryView::Controls

 namespace HistoryView {
@@ -196,6 +198,10 @@ public:
 	[[nodiscard]] rpl::producer<QString> sendCommandRequests() const;
 	[[nodiscard]] rpl::producer<MessageToEdit> editRequests() const;
 	[[nodiscard]] rpl::producer<std::optional<bool>> attachRequests() const;
+	void setSendAsFileConfirmed(
+		Fn<void(
+			std::shared_ptr<Ui::PreparedBundle>,
+			Api::SendOptions)> confirmed);
 	[[nodiscard]] rpl::producer<FileChosen> fileChosen() const;
 	[[nodiscard]] rpl::producer<PhotoChosen> photoChosen() const;
 	[[nodiscard]] rpl::producer<FullReplyTo> jumpToItemRequests() const;
@@ -328,6 +334,15 @@ private:
 	void updateControlsGeometry(QSize size);
 	void updateAiButtonVisibility();
 	void updateAiButtonGeometry();
+	void initSendAsFileButton();
+	void fireSendTextAsFile(
+		const QString &fileText,
+		Fn<void()> restoreText);
+	[[nodiscard]] bool checkLargeTextPaste(
+		not_null<const QMimeData*> data,
+		Ui::InputField::MimeAction action);
+	void updateSendAsFileVisibility();
+	void updateSendAsFileGeometry();
 	void setupSendMenu(
 		not_null<Ui::RpWidget*> button,
 		Fn<void(Api::SendOptions)> send);
@@ -363,6 +378,7 @@ private:
 	bool updateBotCommandShown();
 	bool updateLikeShown();
 	[[nodiscard]] bool hasEnoughLinesForAi() const;
+	[[nodiscard]] bool textExceedsMaxSize() const;

 	void cancelInlineBot();
 	void clearInlineBot();
@@ -441,6 +457,7 @@ private:

 	const std::shared_ptr<Ui::SendButton> _send;
 	Controls::ComposeAiButton * const _aiButton = nullptr;
+	Ui::IconButton * const _sendAsFile = nullptr;
 	Ui::IconButton *_editStars = nullptr;
 	Ui::IconButton *_like = nullptr;
 	rpl::variable<int> _minStarsCount;
@@ -476,6 +493,7 @@ private:
 	const std::unique_ptr<FieldHeader> _header;
 	const std::unique_ptr<Controls::VoiceRecordBar> _voiceRecordBar;
 	std::unique_ptr<Controls::AiTooltipManager> _aiTooltipManager;
+	std::unique_ptr<Controls::AiTooltipManager> _sendAsFileTooltipManager;
 	std::shared_ptr<Ui::ChatStyle> _chatStyle;

 	const Fn<SendMenu::Details()> _sendMenuDetails;
@@ -491,6 +509,7 @@ private:
 	rpl::event_stream<not_null<QKeyEvent*>> _scrollKeyEvents;
 	rpl::event_stream<not_null<QKeyEvent*>> _editLastMessageRequests;
 	rpl::event_stream<std::optional<bool>> _attachRequests;
+	Fn<void(std::shared_ptr<Ui::PreparedBundle>, Api::SendOptions)> _sendAsFileConfirmed;
 	rpl::event_stream<> _likeToggled;
 	rpl::event_stream<ReplyNextRequest> _replyNextRequests;
 	rpl::event_stream<> _focusRequests;
@@ -916,6 +916,12 @@ void ChatWidget::setupComposeControls() {
 			[=] { chooseAttach(overrideCompress); });
 	}, lifetime());

+	_composeControls->setSendAsFileConfirmed(crl::guard(this, [=](
+			std::shared_ptr<Ui::PreparedBundle> bundle,
+			Api::SendOptions options) {
+		sendingFilesConfirmed(std::move(bundle), options);
+	}));
+
 	_composeControls->fileChosen(
 	) | rpl::on_next([=](ChatHelpers::FileChosen data) {
 		controller()->hideLayer(anim::type::normal);
@@ -403,6 +403,12 @@ void ScheduledWidget::setupComposeControls() {
 			[=] { _choosingAttach = false; chooseAttach(); });
 	}, lifetime());

+	_composeControls->setSendAsFileConfirmed(crl::guard(this, [=](
+			std::shared_ptr<Ui::PreparedBundle> bundle,
+			Api::SendOptions options) {
+		sendingFilesConfirmed(std::move(bundle), options);
+	}));
+
 	_composeControls->fileChosen(
 	) | rpl::on_next([=](ChatHelpers::FileChosen data) {
 		controller()->hideLayer(anim::type::normal);
@@ -766,6 +766,12 @@ void ReplyArea::initActions() {
 			[=] { chooseAttach(overrideCompress); });
 	}, _lifetime);

+	_controls->setSendAsFileConfirmed(crl::guard(this, [=](
+			std::shared_ptr<Ui::PreparedBundle> bundle,
+			Api::SendOptions options) {
+		sendingFilesConfirmed(std::move(bundle), options);
+	}));
+
 	_controls->fileChosen(
 	) | rpl::on_next([=](ChatHelpers::FileChosen data) {
 		_controller->uiShow()->hideLayer();
@@ -691,6 +691,12 @@ void ShortcutMessages::setupComposeControls() {
 		});
 	}, lifetime());

+	_composeControls->setSendAsFileConfirmed(crl::guard(this, [=](
+			std::shared_ptr<Ui::PreparedBundle> bundle,
+			Api::SendOptions options) {
+		sendingFilesConfirmed(std::move(bundle), options);
+	}));
+
 	_composeControls->fileChosen(
 	) | rpl::on_next([=](ChatHelpers::FileChosen data) {
 		_controller->hideLayer(anim::type::normal);
@@ -64,8 +64,13 @@ void SingleFilePreview::preparePreview(const PreparedFile &file) {
 			? fallbackName
 			: file.displayName;
 		data.name = displayName;
-		data.statusText = FormatImageSizeText(file.originalDimensions);
-		data.fileIsImage = true;
+		if (file.originalDimensions.isValid()) {
+			data.statusText = FormatImageSizeText(file.originalDimensions);
+			data.fileIsImage = true;
+		} else {
+			data.statusText = FormatSizeText(file.size);
+			data.fileIsImage = false;
+		}
 	} else {
 		auto fileinfo = QFileInfo(filepath);
 		auto filename = file.displayName.isEmpty()
@@ -9,10 +9,14 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL

 #include "base/options.h"
 #include "boxes/compose_ai_box.h"
+#include "config.h"
+#include "core/mime_type.h"
 #include "history/view/controls/history_view_compose_ai_button.h"
 #include "lang/lang_keys.h"
 #include "main/main_app_config.h"
 #include "main/main_session.h"
+#include "ui/chat/attach/attach_prepare.h"
+#include "ui/text/text.h"
 #include "ui/text/text_entity.h"
 #include "ui/widgets/fields/input_field.h"

@@ -43,7 +47,63 @@ bool HasEnoughLinesForAi(
 	const auto contentHeight = field->height()
 		- margins.top()
 		- margins.bottom();
-	return contentHeight >= (3 * lineHeight);
+	if (contentHeight < (3 * lineHeight)) {
+		return false;
+	}
+	const auto &text = field->getLastText();
+	if (text.size() > MaxMessageSize) {
+		return false;
+	}
+	for (const auto &ch : text) {
+		if (!Text::IsTrimmed(ch) && !Text::IsReplacedBySpace(ch)) {
+			return true;
+		}
+	}
+	return false;
+}
+
+PreparedList PrepareTextAsFile(const QString &text) {
+	auto content = text.toUtf8();
+	auto result = PreparedList();
+	auto file = PreparedFile(QString());
+	file.content = content;
+	file.displayName = u"message.txt"_q;
+	file.size = content.size();
+	file.information = std::make_unique<PreparedFileInformation>();
+	file.information->filemime = u"text/plain"_q;
+	result.files.push_back(std::move(file));
+	return result;
+}
+
+constexpr auto kSendAsFilePasteMultiplier = 8;
+
+int SendAsFilePasteThreshold() {
+	return kSendAsFilePasteMultiplier * MaxMessageSize;
+}
+
+LargeTextPasteResult CheckLargeTextPaste(
+		not_null<Ui::InputField*> field,
+		not_null<const QMimeData*> data) {
+	const auto pasteText = Core::ReadMimeText(data);
+	if (pasteText.isEmpty()) {
+		return {};
+	}
+	const auto cursor = field->textCursor();
+	const auto currentText = field->getLastText();
+	const auto selStart = cursor.selectionStart();
+	const auto selEnd = cursor.selectionEnd();
+	const auto resultingSize = currentText.size()
+		- (selEnd - selStart)
+		+ pasteText.size();
+	if (resultingSize < SendAsFilePasteThreshold()) {
+		return {};
+	}
+	return {
+		.exceeds = true,
+		.resultingText = currentText.mid(0, selStart)
+			+ pasteText
+			+ currentText.mid(selEnd),
+	};
 }

 void UpdateCaptionAiButtonGeometry(
@@ -7,6 +7,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once

+class QMimeData;
+
 namespace Main {
 class Session;
 } // namespace Main
@@ -23,6 +25,8 @@ class ComposeAiButton;

 namespace Ui {

+struct PreparedList;
+
 extern const char kOptionHideAiButton[];

 [[nodiscard]] bool HasEnoughLinesForAi(
@@ -44,4 +48,16 @@ void UpdateCaptionAiButtonGeometry(
 	not_null<HistoryView::Controls::ComposeAiButton*> button,
 	not_null<Ui::InputField*> field);

+[[nodiscard]] PreparedList PrepareTextAsFile(const QString &text);
+[[nodiscard]] int SendAsFilePasteThreshold();
+
+struct LargeTextPasteResult {
+	bool exceeds = false;
+	QString resultingText;
+};
+
+[[nodiscard]] LargeTextPasteResult CheckLargeTextPaste(
+	not_null<Ui::InputField*> field,
+	not_null<const QMimeData*> data);
+
 } // namespace Ui