Added ability to paste data in section of scheduled messages.

Fixed #6702.
Fixed #6539.

Telegram/SourceFiles/boxes/edit_caption_box.cpp

@@ -551,10 +551,7 @@ void EditCaptionBox::prepare() {
 			} else if (data->hasImage()) {
 				return true;
 			} else if (const auto urls = data->urls(); !urls.empty()) {
-				if (ranges::find_if(
+				if (ranges::all_of(urls, &QUrl::isLocalFile)) {
-					urls,
-					[](const QUrl &url) { return !url.isLocalFile(); }
-				) == urls.end()) {
 					return true;
 				}
 			}

Telegram/SourceFiles/history/history_widget.cpp

@@ -4475,10 +4475,7 @@ bool HistoryWidget::canSendFiles(not_null<const QMimeData*> data) const {
 	} else if (data->hasImage()) {
 		return true;
 	} else if (const auto urls = data->urls(); !urls.empty()) {
-		if (ranges::find_if(
+		if (ranges::all_of(urls, &QUrl::isLocalFile)) {
-			urls,
-			[](const QUrl &url) { return !url.isLocalFile(); }
-		) == urls.end()) {
 			return true;
 		}
 	}

Telegram/SourceFiles/history/view/history_view_compose_controls.cpp

@@ -110,6 +110,10 @@ rpl::producer<> ComposeControls::attachRequests() const {
 	});
 }
 
+void ComposeControls::setMimeDataHook(MimeDataHook hook) {
+	_field->setMimeDataHook(std::move(hook));
+}
+
 rpl::producer<not_null<DocumentData*>> ComposeControls::fileChosen() const {
 	return _fileChosen.events();
 }

Telegram/SourceFiles/history/view/history_view_compose_controls.h

@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/unique_qptr.h"
 #include "ui/rp_widget.h"
 #include "ui/effects/animations.h"
+#include "ui/widgets/input_fields.h"
 #include "chat_helpers/tabbed_selector.h"
 
 class History;
@@ -31,7 +32,6 @@ namespace Ui {
 class SendButton;
 class IconButton;
 class EmojiButton;
-class InputField;
 } // namespace Ui
 
 namespace Main {
@@ -76,6 +76,11 @@ public:
 	[[nodiscard]] auto inlineResultChosen() const
 		-> rpl::producer<ChatHelpers::TabbedSelector::InlineChosen>;
 
+	using MimeDataHook = Fn<bool(
+		not_null<const QMimeData*> data,
+		Ui::InputField::MimeAction action)>;
+	void setMimeDataHook(MimeDataHook hook);
+
 	bool pushTabbedSelectorToThirdSection(
 		not_null<PeerData*> peer,
 		const Window::SectionShow &params);

Telegram/SourceFiles/history/view/history_view_scheduled_section.cpp

@@ -44,6 +44,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "styles/style_info.h"
 #include "styles/style_boxes.h"
 
+#include <QtCore/QMimeData>
+
 namespace HistoryView {
 namespace {
 
@@ -55,6 +57,17 @@ void ShowErrorToast(const QString &text) {
 	});
 }
 
+bool CanSendFiles(not_null<const QMimeData*> data) {
+	if (data->hasImage()) {
+		return true;
+	} else if (const auto urls = data->urls(); !urls.empty()) {
+		if (ranges::all_of(urls, &QUrl::isLocalFile)) {
+			return true;
+		}
+	}
+	return false;
+}
+
 } // namespace
 
 object_ptr<Window::SectionWidget> ScheduledMemento::createWidget(
@@ -165,6 +178,20 @@ void ScheduledWidget::setupComposeControls() {
 			ChatHelpers::TabbedSelector::InlineChosen chosen) {
 		sendInlineResult(chosen.result, chosen.bot);
 	}, lifetime());
+
+	_composeControls->setMimeDataHook([=](
+			not_null<const QMimeData*> data,
+			Ui::InputField::MimeAction action) {
+		if (action == Ui::InputField::MimeAction::Check) {
+			return CanSendFiles(data);
+		} else if (action == Ui::InputField::MimeAction::Insert) {
+			return confirmSendingFiles(
+				data,
+				CompressConfirm::Auto,
+				data->text());
+		}
+		Unexpected("action in MimeData hook.");
+	});
 }
 
 void ScheduledWidget::chooseAttach() {
@@ -214,6 +241,43 @@ void ScheduledWidget::chooseAttach() {
 	}), nullptr);
 }
 
+bool ScheduledWidget::confirmSendingFiles(
+		not_null<const QMimeData*> data,
+		CompressConfirm compressed,
+		const QString &insertTextOnCancel) {
+	const auto hasImage = data->hasImage();
+
+	if (const auto urls = data->urls(); !urls.empty()) {
+		auto list = Storage::PrepareMediaList(
+			urls,
+			st::sendMediaPreviewSize);
+		if (list.error != Storage::PreparedList::Error::NonLocalUrl) {
+			if (list.error == Storage::PreparedList::Error::None
+				|| !hasImage) {
+				const auto emptyTextOnCancel = QString();
+				confirmSendingFiles(
+					std::move(list),
+					compressed,
+					emptyTextOnCancel);
+				return true;
+			}
+		}
+	}
+
+	if (hasImage) {
+		auto image = qvariant_cast<QImage>(data->imageData());
+		if (!image.isNull()) {
+			confirmSendingFiles(
+				std::move(image),
+				QByteArray(),
+				compressed,
+				insertTextOnCancel);
+			return true;
+		}
+	}
+	return false;
+}
+
 bool ScheduledWidget::confirmSendingFiles(
 		Storage::PreparedList &&list,
 		CompressConfirm compressed,

Telegram/SourceFiles/history/view/history_view_scheduled_section.h

@@ -159,6 +159,10 @@ private:
 		Storage::PreparedList &&list,
 		CompressConfirm compressed,
 		const QString &insertTextOnCancel = QString());
+	bool confirmSendingFiles(
+		not_null<const QMimeData*> data,
+		CompressConfirm compressed,
+		const QString &insertTextOnCancel = QString());
 	bool showSendingFilesError(const Storage::PreparedList &list) const;
 	void uploadFilesAfterConfirmation(
 		Storage::PreparedList &&list,