tdesktop/Telegram/SourceFiles/ui/special_fields.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/special_fields.h"
#include "lang/lang_keys.h"
#include "countries/countries_instance.h" // Countries::ValidPhoneCode
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#include <QtCore/QRegularExpression>
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namespace Ui {
namespace {
constexpr auto kMaxUsernameLength = 32;
// Rest of the phone number, without country code (seen 12 at least),
// need more for service numbers.
constexpr auto kMaxPhoneTailLength = 32;
// Max length of country phone code.
constexpr auto kMaxPhoneCodeLength = 4;
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} // namespace
CountryCodeInput::CountryCodeInput(
QWidget *parent,
const style::InputField &st)
: MaskedInputField(parent, st) {
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}
void CountryCodeInput::startErasing(QKeyEvent *e) {
setFocus();
keyPressEvent(e);
}
void CountryCodeInput::codeSelected(const QString &code) {
auto wasText = getLastText();
auto wasCursor = cursorPosition();
auto newText = '+' + code;
auto newCursor = int(newText.size());
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setText(newText);
_nosignal = true;
correctValue(wasText, wasCursor, newText, newCursor);
_nosignal = false;
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changed();
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}
void CountryCodeInput::correctValue(
const QString &was,
int wasCursor,
QString &now,
int &nowCursor) {
QString newText, addToNumber;
int oldPos(nowCursor);
int newPos(-1);
int oldLen(now.length());
int start = 0;
int digits = 5;
newText.reserve(oldLen + 1);
if (oldLen && now[0] == '+') {
if (start == oldPos) {
newPos = newText.length();
}
++start;
}
newText += '+';
for (int i = start; i < oldLen; ++i) {
if (i == oldPos) {
newPos = newText.length();
}
auto ch = now[i];
if (ch.isDigit()) {
if (!digits || !--digits) {
addToNumber += ch;
} else {
newText += ch;
}
}
}
if (!addToNumber.isEmpty()) {
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auto validCode = Countries::Instance().validPhoneCode(newText.mid(1));
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addToNumber = newText.mid(1 + validCode.length()) + addToNumber;
newText = '+' + validCode;
}
setCorrectedText(now, nowCursor, newText, newPos);
if (!_nosignal && was != newText) {
_codeChanged.fire(newText.mid(1));
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}
if (!addToNumber.isEmpty()) {
_addedToNumber.fire_copy(addToNumber);
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}
}
PhonePartInput::PhonePartInput(QWidget *parent, const style::InputField &st)
: MaskedInputField(parent, st/*, tr::lng_phone_ph(tr::now)*/) {
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}
void PhonePartInput::paintAdditionalPlaceholder(Painter &p) {
if (!_pattern.isEmpty()) {
auto t = getDisplayedText();
auto ph = _additionalPlaceholder.mid(t.size());
if (!ph.isEmpty()) {
p.setClipRect(rect());
auto phRect = placeholderRect();
int tw = phFont()->width(t);
if (tw < phRect.width()) {
phRect.setLeft(phRect.left() + tw);
placeholderAdditionalPrepare(p);
p.drawText(phRect, ph, style::al_topleft);
}
}
}
}
void PhonePartInput::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Backspace && cursorPosition() == 0) {
_frontBackspaceEvent.fire_copy(e);
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} else {
MaskedInputField::keyPressEvent(e);
}
}
void PhonePartInput::correctValue(
const QString &was,
int wasCursor,
QString &now,
int &nowCursor) {
QString newText;
int oldPos(nowCursor), newPos(-1), oldLen(now.length()), digitCount = 0;
for (int i = 0; i < oldLen; ++i) {
if (now[i].isDigit()) {
++digitCount;
}
}
if (digitCount > kMaxPhoneTailLength) {
digitCount = kMaxPhoneTailLength;
}
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bool inPart = !_pattern.isEmpty();
int curPart = -1, leftInPart = 0;
newText.reserve(oldLen);
for (int i = 0; i < oldLen; ++i) {
if (i == oldPos && newPos < 0) {
newPos = newText.length();
}
auto ch = now[i];
if (ch.isDigit()) {
if (!digitCount--) {
break;
}
if (inPart) {
if (leftInPart) {
--leftInPart;
} else {
++curPart;
inPart = curPart < _pattern.size();
// Don't add an extra space to the end.
if (inPart) {
newText += ' ';
}
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leftInPart = inPart ? (_pattern.at(curPart) - 1) : 0;
++oldPos;
}
}
newText += ch;
} else if (ch == ' ' || ch == '-' || ch == '(' || ch == ')') {
if (inPart) {
if (leftInPart) {
} else {
newText += ch;
++curPart;
inPart = curPart < _pattern.size();
leftInPart = inPart ? _pattern.at(curPart) : 0;
}
} else {
newText += ch;
}
}
}
auto newlen = newText.size();
while (newlen > 0 && newText.at(newlen - 1).isSpace()) {
--newlen;
}
if (newlen < newText.size()) {
newText = newText.mid(0, newlen);
}
setCorrectedText(now, nowCursor, newText, newPos);
}
void PhonePartInput::addedToNumber(const QString &added) {
setFocus();
auto wasText = getLastText();
auto wasCursor = cursorPosition();
auto newText = added + wasText;
auto newCursor = int(newText.size());
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setText(newText);
setCursorPosition(added.length());
correctValue(wasText, wasCursor, newText, newCursor);
startPlaceholderAnimation();
}
void PhonePartInput::chooseCode(const QString &code) {
_pattern = Countries::Instance().format({
.phone = code,
.onlyGroups = true,
.incomplete = true,
}).groups;
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if (!_pattern.isEmpty() && _pattern.at(0) == code.size()) {
_pattern.pop_front();
} else {
_pattern.clear();
}
_additionalPlaceholder = QString();
if (!_pattern.isEmpty()) {
_additionalPlaceholder.reserve(20);
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for (const auto part : std::as_const(_pattern)) {
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_additionalPlaceholder.append(' ');
_additionalPlaceholder.append(QString(part, QChar(0x2212)));
}
}
setPlaceholderHidden(!_additionalPlaceholder.isEmpty());
auto wasText = getLastText();
auto wasCursor = cursorPosition();
auto newText = getLastText();
auto newCursor = int(newText.size());
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correctValue(wasText, wasCursor, newText, newCursor);
startPlaceholderAnimation();
update();
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}
UsernameInput::UsernameInput(
QWidget *parent,
const style::InputField &st,
rpl::producer<QString> placeholder,
const QString &val,
const QString &linkPlaceholder)
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: MaskedInputField(parent, st, std::move(placeholder), val) {
setLinkPlaceholder(linkPlaceholder);
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}
void UsernameInput::setLinkPlaceholder(const QString &placeholder) {
_linkPlaceholder = placeholder;
if (!_linkPlaceholder.isEmpty()) {
setTextMargins(style::margins(_st.textMargins.left() + _st.font->width(_linkPlaceholder), _st.textMargins.top(), _st.textMargins.right(), _st.textMargins.bottom()));
setPlaceholderHidden(true);
}
}
void UsernameInput::paintAdditionalPlaceholder(Painter &p) {
if (!_linkPlaceholder.isEmpty()) {
p.setFont(_st.font);
p.setPen(_st.placeholderFg);
p.drawText(QRect(_st.textMargins.left(), _st.textMargins.top(), width(), height() - _st.textMargins.top() - _st.textMargins.bottom()), _linkPlaceholder, style::al_topleft);
}
}
void UsernameInput::correctValue(
const QString &was,
int wasCursor,
QString &now,
int &nowCursor) {
auto newPos = nowCursor;
auto from = 0, len = int(now.size());
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for (; from < len; ++from) {
if (!now.at(from).isSpace()) {
break;
}
if (newPos > 0) --newPos;
}
len -= from;
if (len > kMaxUsernameLength) {
len = kMaxUsernameLength + (now.at(from) == '@' ? 1 : 0);
}
for (int32 to = from + len; to > from;) {
--to;
if (!now.at(to).isSpace()) {
break;
}
--len;
}
setCorrectedText(now, nowCursor, now.mid(from, len), newPos);
}
PhoneInput::PhoneInput(
QWidget *parent,
const style::InputField &st,
rpl::producer<QString> placeholder,
const QString &defaultValue,
QString value)
: MaskedInputField(parent, st, std::move(placeholder), value)
, _defaultValue(defaultValue) {
if (value.isEmpty()) {
clearText();
} else {
auto pos = int(value.size());
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correctValue(QString(), 0, value, pos);
}
}
void PhoneInput::focusInEvent(QFocusEvent *e) {
MaskedInputField::focusInEvent(e);
setSelection(cursorPosition(), cursorPosition());
}
void PhoneInput::clearText() {
auto value = _defaultValue;
setText(value);
auto pos = int(value.size());
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correctValue(QString(), 0, value, pos);
}
void PhoneInput::paintAdditionalPlaceholder(Painter &p) {
if (!_pattern.isEmpty()) {
auto t = getDisplayedText();
auto ph = _additionalPlaceholder.mid(t.size());
if (!ph.isEmpty()) {
p.setClipRect(rect());
auto phRect = placeholderRect();
int tw = phFont()->width(t);
if (tw < phRect.width()) {
phRect.setLeft(phRect.left() + tw);
placeholderAdditionalPrepare(p);
p.drawText(phRect, ph, style::al_topleft);
}
}
}
}
void PhoneInput::correctValue(
const QString &was,
int wasCursor,
QString &now,
int &nowCursor) {
auto digits = now;
digits.replace(QRegularExpression("[^\\d]"), QString());
_pattern = Countries::Instance().format({
.phone = digits,
.onlyGroups = true,
.incomplete = true,
}).groups;
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QString newPlaceholder;
if (_pattern.isEmpty()) {
newPlaceholder = QString();
} else if (_pattern.size() == 1 && _pattern.at(0) == digits.size()) {
newPlaceholder = QString(_pattern.at(0) + 2, ' ') + tr::lng_contact_phone(tr::now);
} else {
newPlaceholder.reserve(20);
for (int i = 0, l = _pattern.size(); i < l; ++i) {
if (i) {
newPlaceholder.append(' ');
} else {
newPlaceholder.append('+');
}
newPlaceholder.append(i ? QString(_pattern.at(i), QChar(0x2212)) : digits.mid(0, _pattern.at(i)));
}
}
if (_additionalPlaceholder != newPlaceholder) {
_additionalPlaceholder = newPlaceholder;
setPlaceholderHidden(!_additionalPlaceholder.isEmpty());
update();
}
QString newText;
int oldPos(nowCursor), newPos(-1), oldLen(now.length()), digitCount = qMin(digits.size(), kMaxPhoneCodeLength + kMaxPhoneTailLength);
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bool inPart = !_pattern.isEmpty(), plusFound = false;
int curPart = 0, leftInPart = inPart ? _pattern.at(curPart) : 0;
newText.reserve(oldLen + 1);
newText.append('+');
for (int i = 0; i < oldLen; ++i) {
if (i == oldPos && newPos < 0) {
newPos = newText.length();
}
QChar ch(now[i]);
if (ch.isDigit()) {
if (!digitCount--) {
break;
}
if (inPart) {
if (leftInPart) {
--leftInPart;
} else {
++curPart;
inPart = curPart < _pattern.size();
// Don't add an extra space to the end.
if (inPart) {
newText += ' ';
}
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leftInPart = inPart ? (_pattern.at(curPart) - 1) : 0;
++oldPos;
}
}
newText += ch;
} else if (ch == ' ' || ch == '-' || ch == '(' || ch == ')') {
if (inPart) {
if (leftInPart) {
} else {
newText += ch;
++curPart;
inPart = curPart < _pattern.size();
leftInPart = inPart ? _pattern.at(curPart) : 0;
}
} else {
newText += ch;
}
} else if (ch == '+') {
plusFound = true;
}
}
if (!plusFound && newText == qstr("+")) {
newText = QString();
newPos = 0;
}
int32 newlen = newText.size();
while (newlen > 0 && newText.at(newlen - 1).isSpace()) {
--newlen;
}
if (newlen < newText.size()) {
newText = newText.mid(0, newlen);
}
setCorrectedText(now, nowCursor, newText, newPos);
}
} // namespace Ui