735 lines
20 KiB
C++
735 lines
20 KiB
C++
/*
|
|
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 "chat_helpers/message_field.h"
|
|
|
|
#include "history/history_widget.h"
|
|
#include "base/qthelp_regex.h"
|
|
#include "boxes/abstract_box.h"
|
|
#include "ui/wrap/vertical_layout.h"
|
|
#include "window/window_controller.h"
|
|
#include "lang/lang_keys.h"
|
|
#include "mainwindow.h"
|
|
#include "auth_session.h"
|
|
#include "styles/style_boxes.h"
|
|
#include "styles/style_history.h"
|
|
|
|
namespace {
|
|
|
|
using EditLinkAction = Ui::InputField::EditLinkAction;
|
|
using EditLinkSelection = Ui::InputField::EditLinkSelection;
|
|
|
|
constexpr auto kParseLinksTimeout = TimeMs(1000);
|
|
const auto kMentionTagStart = qstr("mention://user.");
|
|
|
|
bool IsMentionLink(const QString &link) {
|
|
return link.startsWith(kMentionTagStart);
|
|
}
|
|
|
|
// For mention tags save and validate userId, ignore tags for different userId.
|
|
class FieldTagMimeProcessor : public Ui::InputField::TagMimeProcessor {
|
|
public:
|
|
QString mimeTagFromTag(const QString &tagId) override {
|
|
return ConvertTagToMimeTag(tagId);
|
|
}
|
|
|
|
QString tagFromMimeTag(const QString &mimeTag) override {
|
|
if (IsMentionLink(mimeTag)) {
|
|
auto match = QRegularExpression(":(\\d+)$").match(mimeTag);
|
|
if (!match.hasMatch()
|
|
|| match.capturedRef(1).toInt() != Auth().userId()) {
|
|
return QString();
|
|
}
|
|
return mimeTag.mid(0, mimeTag.size() - match.capturedLength());
|
|
}
|
|
return mimeTag;
|
|
}
|
|
|
|
};
|
|
|
|
class EditLinkBox : public BoxContent {
|
|
public:
|
|
EditLinkBox(
|
|
QWidget*,
|
|
const QString &text,
|
|
const QString &link,
|
|
base::lambda<void(QString, QString)> callback);
|
|
|
|
void setInnerFocus() override;
|
|
|
|
protected:
|
|
void prepare() override;
|
|
|
|
private:
|
|
QString _startText;
|
|
QString _startLink;
|
|
base::lambda<void(QString, QString)> _callback;
|
|
base::lambda<void()> _setInnerFocus;
|
|
|
|
};
|
|
|
|
QRegularExpression RegExpProtocol() {
|
|
static const auto result = QRegularExpression("^([a-zA-Z]+)://");
|
|
return result;
|
|
}
|
|
|
|
bool IsGoodProtocol(const QString &protocol) {
|
|
const auto equals = [&](QLatin1String string) {
|
|
return protocol.compare(string, Qt::CaseInsensitive) == 0;
|
|
};
|
|
return equals(qstr("http"))
|
|
|| equals(qstr("https"))
|
|
|| equals(qstr("tg"));
|
|
}
|
|
|
|
QString NormalizeUrl(const QString &value) {
|
|
const auto trimmed = value.trimmed();
|
|
if (trimmed.isEmpty()) {
|
|
return QString();
|
|
}
|
|
const auto match = TextUtilities::RegExpDomainExplicit().match(trimmed);
|
|
if (!match.hasMatch()) {
|
|
const auto domain = TextUtilities::RegExpDomain().match(trimmed);
|
|
if (!domain.hasMatch() || domain.capturedStart() != 0) {
|
|
return QString();
|
|
}
|
|
return qstr("http://") + trimmed;
|
|
} else if (match.capturedStart() != 0) {
|
|
return QString();
|
|
}
|
|
const auto protocolMatch = RegExpProtocol().match(trimmed);
|
|
Assert(protocolMatch.hasMatch());
|
|
return IsGoodProtocol(protocolMatch.captured(1)) ? trimmed : QString();
|
|
}
|
|
|
|
//bool ValidateUrl(const QString &value) {
|
|
// const auto match = TextUtilities::RegExpDomain().match(value);
|
|
// if (!match.hasMatch() || match.capturedStart() != 0) {
|
|
// return false;
|
|
// }
|
|
// const auto protocolMatch = RegExpProtocol().match(value);
|
|
// return protocolMatch.hasMatch()
|
|
// && IsGoodProtocol(protocolMatch.captured(1));
|
|
//}
|
|
|
|
EditLinkBox::EditLinkBox(
|
|
QWidget*,
|
|
const QString &text,
|
|
const QString &link,
|
|
base::lambda<void(QString, QString)> callback)
|
|
: _startText(text)
|
|
, _startLink(link)
|
|
, _callback(std::move(callback)) {
|
|
Expects(_callback != nullptr);
|
|
}
|
|
|
|
void EditLinkBox::setInnerFocus() {
|
|
Expects(_setInnerFocus != nullptr);
|
|
|
|
_setInnerFocus();
|
|
}
|
|
|
|
void EditLinkBox::prepare() {
|
|
const auto content = Ui::CreateChild<Ui::VerticalLayout>(this);
|
|
|
|
const auto text = content->add(
|
|
object_ptr<Ui::InputField>(
|
|
content,
|
|
st::defaultInputField,
|
|
langFactory(lng_formatting_link_text),
|
|
_startText),
|
|
st::markdownLinkFieldPadding);
|
|
text->setInstantReplaces(Ui::InstantReplaces::Default());
|
|
text->setInstantReplacesEnabled(Global::ReplaceEmojiValue());
|
|
|
|
const auto url = content->add(
|
|
object_ptr<Ui::InputField>(
|
|
content,
|
|
st::defaultInputField,
|
|
langFactory(lng_formatting_link_url),
|
|
_startLink.trimmed()),
|
|
st::markdownLinkFieldPadding);
|
|
|
|
const auto submit = [=] {
|
|
const auto linkText = text->getLastText();
|
|
const auto linkUrl = NormalizeUrl(url->getLastText());
|
|
if (linkText.isEmpty()) {
|
|
text->showError();
|
|
return;
|
|
} else if (linkUrl.isEmpty()) {
|
|
url->showError();
|
|
return;
|
|
}
|
|
const auto weak = make_weak(this);
|
|
_callback(linkText, linkUrl);
|
|
if (weak) {
|
|
closeBox();
|
|
}
|
|
};
|
|
|
|
connect(text, &Ui::InputField::submitted, [=] {
|
|
url->setFocusFast();
|
|
});
|
|
connect(url, &Ui::InputField::submitted, [=] {
|
|
if (text->getLastText().isEmpty()) {
|
|
text->setFocusFast();
|
|
} else {
|
|
submit();
|
|
}
|
|
});
|
|
|
|
setTitle(langFactory(lng_formatting_link_create_title));
|
|
|
|
addButton(langFactory(lng_formatting_link_create), submit);
|
|
addButton(langFactory(lng_cancel), [=] { closeBox(); });
|
|
|
|
content->resizeToWidth(st::boxWidth);
|
|
content->moveToLeft(0, 0);
|
|
setDimensions(st::boxWidth, content->height());
|
|
|
|
_setInnerFocus = [=] {
|
|
(_startText.isEmpty() ? text : url)->setFocusFast();
|
|
};
|
|
}
|
|
|
|
} // namespace
|
|
|
|
QString ConvertTagToMimeTag(const QString &tagId) {
|
|
if (IsMentionLink(tagId)) {
|
|
return tagId + ':' + QString::number(Auth().userId());
|
|
}
|
|
return tagId;
|
|
}
|
|
|
|
QString PrepareMentionTag(not_null<UserData*> user) {
|
|
return kMentionTagStart
|
|
+ QString::number(user->bareId())
|
|
+ '.'
|
|
+ QString::number(user->accessHash());
|
|
}
|
|
|
|
EntitiesInText ConvertTextTagsToEntities(const TextWithTags::Tags &tags) {
|
|
EntitiesInText result;
|
|
if (tags.isEmpty()) {
|
|
return result;
|
|
}
|
|
|
|
result.reserve(tags.size());
|
|
for (const auto &tag : tags) {
|
|
const auto push = [&](
|
|
EntityInTextType type,
|
|
const QString &data = QString()) {
|
|
result.push_back(
|
|
EntityInText(type, tag.offset, tag.length, data));
|
|
};
|
|
if (IsMentionLink(tag.id)) {
|
|
if (auto match = qthelp::regex_match("^(\\d+\\.\\d+)(/|$)", tag.id.midRef(kMentionTagStart.size()))) {
|
|
push(EntityInTextMentionName, match->captured(1));
|
|
}
|
|
} else if (tag.id == Ui::InputField::kTagBold) {
|
|
push(EntityInTextBold);
|
|
} else if (tag.id == Ui::InputField::kTagItalic) {
|
|
push(EntityInTextItalic);
|
|
} else if (tag.id == Ui::InputField::kTagCode) {
|
|
push(EntityInTextCode);
|
|
} else if (tag.id == Ui::InputField::kTagPre) {
|
|
push(EntityInTextPre);
|
|
} else /*if (ValidateUrl(tag.id)) */{ // We validate when we insert.
|
|
push(EntityInTextCustomUrl, tag.id);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
TextWithTags::Tags ConvertEntitiesToTextTags(const EntitiesInText &entities) {
|
|
TextWithTags::Tags result;
|
|
if (entities.isEmpty()) {
|
|
return result;
|
|
}
|
|
|
|
result.reserve(entities.size());
|
|
for (const auto &entity : entities) {
|
|
const auto push = [&](const QString &tag) {
|
|
result.push_back({ entity.offset(), entity.length(), tag });
|
|
};
|
|
switch (entity.type()) {
|
|
case EntityInTextMentionName: {
|
|
auto match = QRegularExpression("^(\\d+\\.\\d+)$").match(entity.data());
|
|
if (match.hasMatch()) {
|
|
push(kMentionTagStart + entity.data());
|
|
}
|
|
} break;
|
|
case EntityInTextCustomUrl: {
|
|
const auto url = entity.data();
|
|
if (Ui::InputField::IsValidMarkdownLink(url)
|
|
&& !IsMentionLink(url)) {
|
|
push(url);
|
|
}
|
|
} break;
|
|
case EntityInTextBold: push(Ui::InputField::kTagBold); break;
|
|
case EntityInTextItalic: push(Ui::InputField::kTagItalic); break;
|
|
case EntityInTextCode: push(Ui::InputField::kTagCode); break;
|
|
case EntityInTextPre: push(Ui::InputField::kTagPre); break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
std::unique_ptr<QMimeData> MimeDataFromTextWithEntities(
|
|
const TextWithEntities &forClipboard) {
|
|
if (forClipboard.text.isEmpty()) {
|
|
return nullptr;
|
|
}
|
|
|
|
auto result = std::make_unique<QMimeData>();
|
|
result->setText(forClipboard.text);
|
|
auto tags = ConvertEntitiesToTextTags(forClipboard.entities);
|
|
if (!tags.isEmpty()) {
|
|
for (auto &tag : tags) {
|
|
tag.id = ConvertTagToMimeTag(tag.id);
|
|
}
|
|
result->setData(
|
|
TextUtilities::TagsMimeType(),
|
|
TextUtilities::SerializeTags(tags));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void SetClipboardWithEntities(
|
|
const TextWithEntities &forClipboard,
|
|
QClipboard::Mode mode) {
|
|
if (auto data = MimeDataFromTextWithEntities(forClipboard)) {
|
|
QApplication::clipboard()->setMimeData(data.release(), mode);
|
|
}
|
|
}
|
|
|
|
base::lambda<bool(
|
|
Ui::InputField::EditLinkSelection selection,
|
|
QString text,
|
|
QString link,
|
|
EditLinkAction action)> DefaultEditLinkCallback(
|
|
not_null<Window::Controller*> controller,
|
|
not_null<Ui::InputField*> field) {
|
|
const auto weak = make_weak(field);
|
|
return [=](
|
|
EditLinkSelection selection,
|
|
QString text,
|
|
QString link,
|
|
EditLinkAction action) {
|
|
if (action == EditLinkAction::Check) {
|
|
return Ui::InputField::IsValidMarkdownLink(link)
|
|
&& !IsMentionLink(link);
|
|
}
|
|
Ui::show(Box<EditLinkBox>(text, link, [=](
|
|
const QString &text,
|
|
const QString &link) {
|
|
if (const auto strong = weak.data()) {
|
|
strong->commitMarkdownLinkEdit(selection, text, link);
|
|
}
|
|
}), LayerOption::KeepOther);
|
|
return true;
|
|
};
|
|
}
|
|
|
|
|
|
void InitMessageField(
|
|
not_null<Window::Controller*> controller,
|
|
not_null<Ui::InputField*> field) {
|
|
field->setMinHeight(st::historySendSize.height() - 2 * st::historySendPadding);
|
|
field->setMaxHeight(st::historyComposeFieldMaxHeight);
|
|
|
|
field->setTagMimeProcessor(std::make_unique<FieldTagMimeProcessor>());
|
|
|
|
field->document()->setDocumentMargin(4.);
|
|
field->setAdditionalMargin(convertScale(4) - 4);
|
|
|
|
field->customTab(true);
|
|
field->setInstantReplaces(Ui::InstantReplaces::Default());
|
|
field->setInstantReplacesEnabled(Global::ReplaceEmojiValue());
|
|
field->setMarkdownReplacesEnabled(rpl::single(true));
|
|
field->setEditLinkCallback(
|
|
DefaultEditLinkCallback(controller, field));
|
|
}
|
|
|
|
bool HasSendText(not_null<const Ui::InputField*> field) {
|
|
const auto &text = field->getTextWithTags().text;
|
|
for (const auto ch : text) {
|
|
const auto code = ch.unicode();
|
|
if (code != ' '
|
|
&& code != '\n'
|
|
&& code != '\r'
|
|
&& !chReplacedBySpace(code)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
InlineBotQuery ParseInlineBotQuery(not_null<const Ui::InputField*> field) {
|
|
auto result = InlineBotQuery();
|
|
|
|
const auto &text = field->getTextWithTags().text;
|
|
const auto textLength = text.size();
|
|
|
|
auto inlineUsernameStart = 1;
|
|
auto inlineUsernameLength = 0;
|
|
if (textLength > 2 && text[0] == '@' && text[1].isLetter()) {
|
|
inlineUsernameLength = 1;
|
|
for (auto i = inlineUsernameStart + 1; i != textLength; ++i) {
|
|
const auto ch = text[i];
|
|
if (ch.isLetterOrNumber() || ch.unicode() == '_') {
|
|
++inlineUsernameLength;
|
|
continue;
|
|
} else if (!ch.isSpace()) {
|
|
inlineUsernameLength = 0;
|
|
}
|
|
break;
|
|
}
|
|
auto inlineUsernameEnd = inlineUsernameStart + inlineUsernameLength;
|
|
auto inlineUsernameEqualsText = (inlineUsernameEnd == textLength);
|
|
auto validInlineUsername = false;
|
|
if (inlineUsernameEqualsText) {
|
|
validInlineUsername = text.endsWith(qstr("bot"));
|
|
} else if (inlineUsernameEnd < textLength && inlineUsernameLength) {
|
|
validInlineUsername = text[inlineUsernameEnd].isSpace();
|
|
}
|
|
if (validInlineUsername) {
|
|
auto username = text.midRef(inlineUsernameStart, inlineUsernameLength);
|
|
if (username != result.username) {
|
|
result.username = username.toString();
|
|
if (const auto peer = App::peerByName(result.username)) {
|
|
if (const auto user = peer->asUser()) {
|
|
result.bot = peer->asUser();
|
|
} else {
|
|
result.bot = nullptr;
|
|
}
|
|
result.lookingUpBot = false;
|
|
} else {
|
|
result.bot = nullptr;
|
|
result.lookingUpBot = true;
|
|
}
|
|
}
|
|
if (result.lookingUpBot) {
|
|
result.query = QString();
|
|
return result;
|
|
} else if (result.bot && (!result.bot->botInfo
|
|
|| result.bot->botInfo->inlinePlaceholder.isEmpty())) {
|
|
result.bot = nullptr;
|
|
} else {
|
|
result.query = inlineUsernameEqualsText
|
|
? QString()
|
|
: text.mid(inlineUsernameEnd + 1);
|
|
return result;
|
|
}
|
|
} else {
|
|
inlineUsernameLength = 0;
|
|
}
|
|
}
|
|
if (inlineUsernameLength < 3) {
|
|
result.bot = nullptr;
|
|
result.username = QString();
|
|
}
|
|
result.query = QString();
|
|
return result;
|
|
}
|
|
|
|
AutocompleteQuery ParseMentionHashtagBotCommandQuery(
|
|
not_null<const Ui::InputField*> field) {
|
|
auto result = AutocompleteQuery();
|
|
|
|
const auto cursor = field->textCursor();
|
|
if (cursor.hasSelection()) {
|
|
return result;
|
|
}
|
|
|
|
const auto position = cursor.position();
|
|
const auto document = field->document();
|
|
const auto block = document->findBlock(position);
|
|
for (auto item = block.begin(); !item.atEnd(); ++item) {
|
|
const auto fragment = item.fragment();
|
|
if (!fragment.isValid()) {
|
|
continue;
|
|
}
|
|
|
|
const auto fragmentPosition = fragment.position();
|
|
const auto fragmentEnd = fragmentPosition + fragment.length();
|
|
if (fragmentPosition >= position || fragmentEnd < position) {
|
|
continue;
|
|
}
|
|
|
|
const auto format = fragment.charFormat();
|
|
if (format.isImageFormat()) {
|
|
continue;
|
|
}
|
|
|
|
bool mentionInCommand = false;
|
|
const auto text = fragment.text();
|
|
for (auto i = position - fragmentPosition; i != 0; --i) {
|
|
if (text[i - 1] == '@') {
|
|
if ((position - fragmentPosition - i < 1 || text[i].isLetter()) && (i < 2 || !(text[i - 2].isLetterOrNumber() || text[i - 2] == '_'))) {
|
|
result.fromStart = (i == 1) && (fragmentPosition == 0);
|
|
result.query = text.mid(i - 1, position - fragmentPosition - i + 1);
|
|
} else if ((position - fragmentPosition - i < 1 || text[i].isLetter()) && i > 2 && (text[i - 2].isLetterOrNumber() || text[i - 2] == '_') && !mentionInCommand) {
|
|
mentionInCommand = true;
|
|
--i;
|
|
continue;
|
|
}
|
|
return result;
|
|
} else if (text[i - 1] == '#') {
|
|
if (i < 2 || !(text[i - 2].isLetterOrNumber() || text[i - 2] == '_')) {
|
|
result.fromStart = (i == 1) && (fragmentPosition == 0);
|
|
result.query = text.mid(i - 1, position - fragmentPosition - i + 1);
|
|
}
|
|
return result;
|
|
} else if (text[i - 1] == '/') {
|
|
if (i < 2) {
|
|
result.fromStart = (i == 1) && (fragmentPosition == 0);
|
|
result.query = text.mid(i - 1, position - fragmentPosition - i + 1);
|
|
}
|
|
return result;
|
|
}
|
|
if (position - fragmentPosition - i > 127 || (!mentionInCommand && (position - fragmentPosition - i > 63))) {
|
|
break;
|
|
}
|
|
if (!text[i - 1].isLetterOrNumber() && text[i - 1] != '_') {
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
QtConnectionOwner::QtConnectionOwner(QMetaObject::Connection connection)
|
|
: _data(connection) {
|
|
}
|
|
|
|
QtConnectionOwner::QtConnectionOwner(QtConnectionOwner &&other)
|
|
: _data(base::take(other._data)) {
|
|
}
|
|
|
|
QtConnectionOwner &QtConnectionOwner::operator=(QtConnectionOwner &&other) {
|
|
disconnect();
|
|
_data = base::take(other._data);
|
|
return *this;
|
|
}
|
|
|
|
void QtConnectionOwner::disconnect() {
|
|
QObject::disconnect(base::take(_data));
|
|
}
|
|
|
|
QtConnectionOwner::~QtConnectionOwner() {
|
|
disconnect();
|
|
}
|
|
|
|
MessageLinksParser::MessageLinksParser(not_null<Ui::InputField*> field)
|
|
: _field(field)
|
|
, _timer([=] { parse(); }) {
|
|
_connection = QObject::connect(_field, &Ui::InputField::changed, [=] {
|
|
const auto length = _field->getTextWithTags().text.size();
|
|
const auto timeout = (std::abs(length - _lastLength) > 2)
|
|
? 0
|
|
: kParseLinksTimeout;
|
|
if (!_timer.isActive() || timeout < _timer.remainingTime()) {
|
|
_timer.callOnce(timeout);
|
|
}
|
|
_lastLength = length;
|
|
});
|
|
_field->installEventFilter(this);
|
|
}
|
|
|
|
bool MessageLinksParser::eventFilter(QObject *object, QEvent *event) {
|
|
if (object == _field) {
|
|
if (event->type() == QEvent::KeyPress) {
|
|
const auto text = static_cast<QKeyEvent*>(event)->text();
|
|
if (!text.isEmpty() && text.size() < 3) {
|
|
const auto ch = text[0];
|
|
if (false
|
|
|| ch == '\n'
|
|
|| ch == '\r'
|
|
|| ch.isSpace()
|
|
|| ch == QChar::LineSeparator) {
|
|
_timer.callOnce(0);
|
|
}
|
|
}
|
|
} else if (event->type() == QEvent::Drop) {
|
|
_timer.callOnce(0);
|
|
}
|
|
}
|
|
return QObject::eventFilter(object, event);
|
|
}
|
|
|
|
const rpl::variable<QStringList> &MessageLinksParser::list() const {
|
|
return _list;
|
|
}
|
|
|
|
void MessageLinksParser::parse() {
|
|
const auto &textWithTags = _field->getTextWithTags();
|
|
const auto &text = textWithTags.text;
|
|
const auto &tags = textWithTags.tags;
|
|
const auto &markdownTags = _field->getMarkdownTags();
|
|
if (text.isEmpty()) {
|
|
_list = QStringList();
|
|
return;
|
|
}
|
|
|
|
auto ranges = QVector<LinkRange>();
|
|
|
|
auto tag = tags.begin();
|
|
const auto tagsEnd = tags.end();
|
|
const auto processTag = [&] {
|
|
Expects(tag != tagsEnd);
|
|
|
|
if (Ui::InputField::IsValidMarkdownLink(tag->id)
|
|
&& !IsMentionLink(tag->id)) {
|
|
ranges.push_back({ tag->offset, tag->length, tag->id });
|
|
}
|
|
++tag;
|
|
};
|
|
const auto processTagsBefore = [&](int offset) {
|
|
while (tag != tagsEnd && tag->offset + tag->length <= offset) {
|
|
processTag();
|
|
}
|
|
};
|
|
const auto hasTagsIntersection = [&](int till) {
|
|
if (tag == tagsEnd || tag->offset >= till) {
|
|
return false;
|
|
}
|
|
while (tag != tagsEnd && tag->offset < till) {
|
|
processTag();
|
|
}
|
|
return true;
|
|
};
|
|
|
|
auto markdownTag = markdownTags.begin();
|
|
const auto markdownTagsEnd = markdownTags.end();
|
|
const auto markdownTagsAllow = [&](int from, int length) {
|
|
while (markdownTag != markdownTagsEnd
|
|
&& (markdownTag->start + markdownTag->length <= from
|
|
|| !markdownTag->closed)) {
|
|
++markdownTag;
|
|
continue;
|
|
}
|
|
if (markdownTag == markdownTagsEnd
|
|
|| markdownTag->start >= from + length) {
|
|
return true;
|
|
}
|
|
// Ignore http-links that are completely inside some tags.
|
|
// This will allow sending http://test.com/__test__/test correctly.
|
|
return (markdownTag->start > from
|
|
|| markdownTag->start + markdownTag->length < from + length);
|
|
};
|
|
|
|
const auto len = text.size();
|
|
const QChar *start = text.unicode(), *end = start + text.size();
|
|
for (auto offset = 0, matchOffset = offset; offset < len;) {
|
|
auto m = TextUtilities::RegExpDomain().match(text, matchOffset);
|
|
if (!m.hasMatch()) break;
|
|
|
|
auto domainOffset = m.capturedStart();
|
|
|
|
auto protocol = m.captured(1).toLower();
|
|
auto topDomain = m.captured(3).toLower();
|
|
auto isProtocolValid = protocol.isEmpty() || TextUtilities::IsValidProtocol(protocol);
|
|
auto isTopDomainValid = !protocol.isEmpty() || TextUtilities::IsValidTopDomain(topDomain);
|
|
|
|
if (protocol.isEmpty() && domainOffset > offset + 1 && *(start + domainOffset - 1) == QChar('@')) {
|
|
auto forMailName = text.mid(offset, domainOffset - offset - 1);
|
|
auto mMailName = TextUtilities::RegExpMailNameAtEnd().match(forMailName);
|
|
if (mMailName.hasMatch()) {
|
|
offset = matchOffset = m.capturedEnd();
|
|
continue;
|
|
}
|
|
}
|
|
if (!isProtocolValid || !isTopDomainValid) {
|
|
offset = matchOffset = m.capturedEnd();
|
|
continue;
|
|
}
|
|
|
|
QStack<const QChar*> parenth;
|
|
const QChar *domainEnd = start + m.capturedEnd(), *p = domainEnd;
|
|
for (; p < end; ++p) {
|
|
QChar ch(*p);
|
|
if (chIsLinkEnd(ch)) break; // link finished
|
|
if (chIsAlmostLinkEnd(ch)) {
|
|
const QChar *endTest = p + 1;
|
|
while (endTest < end && chIsAlmostLinkEnd(*endTest)) {
|
|
++endTest;
|
|
}
|
|
if (endTest >= end || chIsLinkEnd(*endTest)) {
|
|
break; // link finished at p
|
|
}
|
|
p = endTest;
|
|
ch = *p;
|
|
}
|
|
if (ch == '(' || ch == '[' || ch == '{' || ch == '<') {
|
|
parenth.push(p);
|
|
} else if (ch == ')' || ch == ']' || ch == '}' || ch == '>') {
|
|
if (parenth.isEmpty()) break;
|
|
const QChar *q = parenth.pop(), open(*q);
|
|
if ((ch == ')' && open != '(') || (ch == ']' && open != '[') || (ch == '}' && open != '{') || (ch == '>' && open != '<')) {
|
|
p = q;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (p > domainEnd) { // check, that domain ended
|
|
if (domainEnd->unicode() != '/' && domainEnd->unicode() != '?') {
|
|
matchOffset = domainEnd - start;
|
|
continue;
|
|
}
|
|
}
|
|
const auto range = LinkRange {
|
|
domainOffset,
|
|
static_cast<int>(p - start - domainOffset),
|
|
QString()
|
|
};
|
|
processTagsBefore(domainOffset);
|
|
if (!hasTagsIntersection(range.start + range.length)) {
|
|
if (markdownTagsAllow(range.start, range.length)) {
|
|
ranges.push_back(range);
|
|
}
|
|
}
|
|
offset = matchOffset = p - start;
|
|
}
|
|
processTagsBefore(QFIXED_MAX);
|
|
|
|
apply(text, ranges);
|
|
}
|
|
|
|
void MessageLinksParser::apply(
|
|
const QString &text,
|
|
const QVector<LinkRange> &ranges) {
|
|
const auto count = int(ranges.size());
|
|
const auto current = _list.current();
|
|
const auto computeLink = [&](const LinkRange &range) {
|
|
return range.custom.isEmpty()
|
|
? text.midRef(range.start, range.length)
|
|
: range.custom.midRef(0);
|
|
};
|
|
const auto changed = [&] {
|
|
if (current.size() != count) {
|
|
return true;
|
|
}
|
|
for (auto i = 0; i != count; ++i) {
|
|
if (computeLink(ranges[i]) != current[i]) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}();
|
|
if (!changed) {
|
|
return;
|
|
}
|
|
auto parsed = QStringList();
|
|
parsed.reserve(count);
|
|
for (const auto &range : ranges) {
|
|
parsed.push_back(computeLink(range).toString());
|
|
}
|
|
_list = std::move(parsed);
|
|
}
|