82 lines
2.3 KiB
C++
82 lines
2.3 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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#include "ui/webview_helpers.h"
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#include "lang/lang_keys.h"
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namespace Ui {
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[[nodiscard]] QByteArray ComputeStyles(
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const base::flat_map<QByteArray, const style::color*> &colors,
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const base::flat_map<QByteArray, tr::phrase<>> &phrases,
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bool nightTheme) {
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static const auto serialize = [](const style::color *color) {
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const auto qt = (*color)->c;
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if (qt.alpha() == 255) {
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return '#'
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+ QByteArray::number(qt.red(), 16).right(2)
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+ QByteArray::number(qt.green(), 16).right(2)
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+ QByteArray::number(qt.blue(), 16).right(2);
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}
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return "rgba("
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+ QByteArray::number(qt.red()) + ","
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+ QByteArray::number(qt.green()) + ","
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+ QByteArray::number(qt.blue()) + ","
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+ QByteArray::number(qt.alpha() / 255.) + ")";
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};
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static const auto escape = [](tr::phrase<> phrase) {
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const auto text = phrase(tr::now);
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auto result = QByteArray();
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for (auto i = 0; i != text.size(); ++i) {
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uint ucs4 = text[i].unicode();
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if (QChar::isHighSurrogate(ucs4) && i + 1 != text.size()) {
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ushort low = text[i + 1].unicode();
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if (QChar::isLowSurrogate(low)) {
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ucs4 = QChar::surrogateToUcs4(ucs4, low);
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++i;
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}
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}
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if (ucs4 == '\'' || ucs4 == '\"' || ucs4 == '\\') {
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result.append('\\').append(char(ucs4));
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} else if (ucs4 < 32 || ucs4 > 127) {
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result.append('\\' + QByteArray::number(ucs4, 16) + ' ');
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} else {
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result.append(char(ucs4));
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}
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}
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return result;
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};
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auto result = QByteArray();
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for (const auto &[name, phrase] : phrases) {
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result += "--td-lng-"_q + name + ":'"_q + escape(phrase) + "'; "_q;
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}
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for (const auto &[name, color] : colors) {
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result += "--td-"_q + name + ':' + serialize(color) + ';';
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}
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result += "--td-night:"_q + (nightTheme ? "1" : "0") + ';';
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return result;
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}
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QByteArray EscapeForAttribute(QByteArray value) {
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return value
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.replace('&', "&")
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.replace('"', """)
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.replace('\'', "'")
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.replace('<', "<")
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.replace('>', ">");
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}
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QByteArray EscapeForScriptString(QByteArray value) {
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return value
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.replace('\\', "\\\\")
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.replace('"', "\\\"")
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.replace('\'', "\\\'");
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}
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} // namespace Ui
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