143 lines
3.3 KiB
C++
143 lines
3.3 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "base/object_ptr.h"
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#include "base/unique_qptr.h"
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namespace Ui {
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class RpWidget;
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class InputField;
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class MaskedInputField;
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class BoxContent;
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} // namespace Ui
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namespace Payments::Ui {
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using namespace ::Ui;
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enum class FieldType {
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Text,
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CardNumber,
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CardExpireDate,
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CardCVC,
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Country,
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Phone,
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Email,
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Money,
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};
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struct FieldValidateRequest {
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QString wasValue;
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int wasPosition = 0;
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int wasAnchor = 0;
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QString nowValue;
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int nowPosition = 0;
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};
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struct FieldValidateResult {
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QString value;
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int position = 0;
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bool invalid = false;
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bool finished = false;
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};
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[[nodiscard]] inline auto RangeLengthValidator(int minLength, int maxLength) {
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return [=](FieldValidateRequest request) {
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return FieldValidateResult{
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.value = request.nowValue,
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.position = request.nowPosition,
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.invalid = (request.nowValue.size() < minLength
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|| request.nowValue.size() > maxLength),
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};
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};
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}
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[[nodiscard]] inline auto MaxLengthValidator(int maxLength) {
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return RangeLengthValidator(0, maxLength);
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}
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[[nodiscard]] inline auto RequiredValidator() {
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return RangeLengthValidator(1, std::numeric_limits<int>::max());
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}
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[[nodiscard]] inline auto RequiredFinishedValidator() {
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return [=](FieldValidateRequest request) {
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return FieldValidateResult{
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.value = request.nowValue,
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.position = request.nowPosition,
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.invalid = request.nowValue.isEmpty(),
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.finished = !request.nowValue.isEmpty(),
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};
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};
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}
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struct FieldConfig {
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FieldType type = FieldType::Text;
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rpl::producer<QString> placeholder;
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QString value;
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Fn<FieldValidateResult(FieldValidateRequest)> validator;
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Fn<void(object_ptr<BoxContent>)> showBox;
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QString currency;
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QString defaultPhone;
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QString defaultCountry;
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};
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class Field final {
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public:
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Field(QWidget *parent, FieldConfig &&config);
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[[nodiscard]] RpWidget *widget() const;
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[[nodiscard]] object_ptr<RpWidget> ownedWidget() const;
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[[nodiscard]] QString value() const;
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[[nodiscard]] rpl::producer<> frontBackspace() const;
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[[nodiscard]] rpl::producer<> finished() const;
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[[nodiscard]] rpl::producer<> submitted() const;
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void activate();
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void setFocus();
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void setFocusFast();
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void showError();
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void showErrorNoFocus();
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void setNextField(not_null<Field*> field);
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void setPreviousField(not_null<Field*> field);
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private:
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struct State {
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QString value;
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int position = 0;
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int anchor = 0;
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};
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using ValidateRequest = FieldValidateRequest;
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using ValidateResult = FieldValidateResult;
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void setupMaskedGeometry();
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void setupCountry();
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void setupValidator(Fn<ValidateResult(ValidateRequest)> validator);
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void setupFrontBackspace();
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void setupSubmit();
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const FieldConfig _config;
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const base::unique_qptr<RpWidget> _wrap;
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rpl::event_stream<> _frontBackspace;
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rpl::event_stream<> _finished;
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rpl::event_stream<> _submitted;
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rpl::event_stream<> _textPossiblyChanged; // Must be above _masked.
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InputField *_input = nullptr;
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MaskedInputField *_masked = nullptr;
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Field *_nextField = nullptr;
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QString _countryIso2;
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State _was;
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bool _validating = false;
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bool _valid = true;
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};
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} // namespace Payments::Ui
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