init

Telegram/SourceFiles/ui/search_field_controller.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "ui/search_field_controller.h"
+
+#include "styles/style_widgets.h"
+#include "ui/wrap/padding_wrap.h"
+#include "ui/widgets/fields/input_field.h"
+#include "ui/widgets/shadow.h"
+#include "ui/widgets/buttons.h"
+#include "lang/lang_keys.h"
+
+namespace Ui {
+
+SearchFieldController::SearchFieldController(const QString &query)
+: _query(query) {
+}
+
+auto SearchFieldController::createRowView(
+		QWidget *parent,
+		const style::SearchFieldRow &st) -> RowView {
+	auto result = base::make_unique_q<Ui::FixedHeightWidget>(
+		parent,
+		st.height);
+	auto wrap = result.get();
+
+	auto field = createField(wrap, st.field).release();
+	field->show();
+
+	auto cancel = CreateChild<Ui::CrossButton>(
+		wrap,
+		st.fieldCancel);
+	cancel->addClickHandler([=] {
+		field->setText(QString());
+	});
+	queryValue(
+	) | rpl::map([](const QString &value) {
+		return !value.isEmpty();
+	}) | rpl::on_next([cancel](bool shown) {
+		cancel->toggle(shown, anim::type::normal);
+	}, cancel->lifetime());
+	cancel->finishAnimating();
+
+	auto shadow = CreateChild<Ui::PlainShadow>(wrap);
+	shadow->show();
+
+	wrap->widthValue(
+	) | rpl::on_next([=, &st](int newWidth) {
+		auto availableWidth = newWidth
+			- st.fieldIconSkip
+			- st.fieldCancelSkip;
+		field->setGeometryToLeft(
+			st.padding.left() + st.fieldIconSkip,
+			st.padding.top(),
+			availableWidth,
+			field->height());
+		cancel->moveToRight(0, 0);
+		shadow->setGeometry(
+			0,
+			st.height - st::lineWidth,
+			newWidth,
+			st::lineWidth);
+	}, wrap->lifetime());
+	wrap->paintRequest(
+	) | rpl::on_next([=, &st] {
+		auto p = QPainter(wrap);
+		st.fieldIcon.paint(
+			p,
+			st.padding.left(),
+			st.padding.top(),
+			wrap->width());
+	}, wrap->lifetime());
+
+	_view.release();
+	_view.reset(wrap);
+	return { std::move(result), field };
+}
+
+QString SearchFieldController::query() const {
+	return _query.current();
+}
+
+rpl::producer<QString> SearchFieldController::queryValue() const {
+	return _query.value();
+}
+
+rpl::producer<QString> SearchFieldController::queryChanges() const {
+	return _query.changes();
+}
+
+void SearchFieldController::setQuery(const QString &query) {
+	_query = query;
+}
+
+base::unique_qptr<Ui::InputField> SearchFieldController::createField(
+		QWidget *parent,
+		const style::InputField &st) {
+	auto result = base::make_unique_q<Ui::InputField>(
+		parent,
+		st,
+		tr::lng_dlg_filter(),
+		_query.current());
+	auto field = result.get();
+	field->changes(
+	) | rpl::on_next([=] {
+		_query = field->getLastText();
+	}, field->lifetime());
+	_view.reset(field);
+	return result;
+}
+
+} // namespace Ui