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323 lines
12 KiB
C++
323 lines
12 KiB
C++
// SPDX-FileCopyrightText: 2021 Nheko Contributors
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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#pragma once
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#include <variant>
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#include <QCoreApplication>
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#include <QDateTime>
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#include <QPixmap>
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#include <QRegularExpression>
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#include <mtx/events/collections.hpp>
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#include <mtx/events/common.hpp>
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#include <qmath.h>
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struct DescInfo;
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namespace cache {
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// Forward declarations to prevent dependency on Cache.h, since this header is included often!
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QString
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displayName(const QString &room_id, const QString &user_id);
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}
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class QComboBox;
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// Contains information about related events for
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// outgoing messages
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struct RelatedInfo
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{
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using MsgType = mtx::events::MessageType;
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MsgType type;
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QString room;
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QString quoted_body, quoted_formatted_body;
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std::string related_event;
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QString quoted_user;
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};
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namespace utils {
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using TimelineEvent = mtx::events::collections::TimelineEvents;
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//! Helper function to remove reply fallback from body
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std::string
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stripReplyFromBody(const std::string &body);
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//! Helper function to remove reply fallback from formatted body
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std::string
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stripReplyFromFormattedBody(const std::string &formatted_body);
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RelatedInfo
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stripReplyFallbacks(const TimelineEvent &event, std::string id, QString room_id_);
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bool
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codepointIsEmoji(uint code);
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QString
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replaceEmoji(const QString &body);
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QString
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localUser();
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float
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scaleFactor();
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void
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setScaleFactor(float factor);
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//! Human friendly timestamp representation.
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QString
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descriptiveTime(const QDateTime &then);
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//! Generate a message description from the event to be displayed
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//! in the RoomList.
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DescInfo
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getMessageDescription(const TimelineEvent &event,
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const QString &localUser,
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const QString &displayName);
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//! Get the first character of a string, taking into account that
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//! surrogate pairs might be in use.
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QString
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firstChar(const QString &input);
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//! Get a human readable file size with the appropriate units attached.
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QString
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humanReadableFileSize(uint64_t bytes);
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QString
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event_body(const mtx::events::collections::TimelineEvents &event);
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//! Match widgets/events with a description message.
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template<class T>
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QString
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messageDescription(const QString &username = "",
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const QString &body = "",
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const bool isLocal = false)
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{
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using Audio = mtx::events::RoomEvent<mtx::events::msg::Audio>;
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using Emote = mtx::events::RoomEvent<mtx::events::msg::Emote>;
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using File = mtx::events::RoomEvent<mtx::events::msg::File>;
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using Image = mtx::events::RoomEvent<mtx::events::msg::Image>;
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using Notice = mtx::events::RoomEvent<mtx::events::msg::Notice>;
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using Sticker = mtx::events::Sticker;
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using Text = mtx::events::RoomEvent<mtx::events::msg::Text>;
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using Video = mtx::events::RoomEvent<mtx::events::msg::Video>;
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using CallInvite = mtx::events::RoomEvent<mtx::events::msg::CallInvite>;
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using CallAnswer = mtx::events::RoomEvent<mtx::events::msg::CallAnswer>;
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using CallHangUp = mtx::events::RoomEvent<mtx::events::msg::CallHangUp>;
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using Encrypted = mtx::events::EncryptedEvent<mtx::events::msg::Encrypted>;
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if (std::is_same<T, Audio>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You sent an audio clip");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 sent an audio clip")
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.arg(username);
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} else if (std::is_same<T, Image>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You sent an image");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 sent an image")
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.arg(username);
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} else if (std::is_same<T, File>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You sent a file");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 sent a file")
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.arg(username);
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} else if (std::is_same<T, Video>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You sent a video");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 sent a video")
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.arg(username);
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} else if (std::is_same<T, Sticker>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You sent a sticker");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 sent a sticker")
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.arg(username);
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} else if (std::is_same<T, Notice>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You sent a notification");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 sent a notification")
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.arg(username);
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} else if (std::is_same<T, Text>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:", "You: %1")
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.arg(body);
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else
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return QCoreApplication::translate("message-description sent:", "%1: %2")
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.arg(username)
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.arg(body);
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} else if (std::is_same<T, Emote>::value) {
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return QString("* %1 %2").arg(username).arg(body);
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} else if (std::is_same<T, Encrypted>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You sent an encrypted message");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 sent an encrypted message")
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.arg(username);
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} else if (std::is_same<T, CallInvite>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You placed a call");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 placed a call")
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.arg(username);
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} else if (std::is_same<T, CallAnswer>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You answered a call");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 answered a call")
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.arg(username);
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} else if (std::is_same<T, CallHangUp>::value) {
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if (isLocal)
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return QCoreApplication::translate("message-description sent:",
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"You ended a call");
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else
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return QCoreApplication::translate("message-description sent:",
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"%1 ended a call")
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.arg(username);
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} else {
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return QCoreApplication::translate("utils", "Unknown Message Type");
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}
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}
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//! Scale down an image to fit to the given width & height limitations.
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QPixmap
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scaleDown(uint64_t maxWidth, uint64_t maxHeight, const QPixmap &source);
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//! Delete items in a container based on a predicate.
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template<typename ContainerT, typename PredicateT>
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void
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erase_if(ContainerT &items, const PredicateT &predicate)
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{
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for (auto it = items.begin(); it != items.end();) {
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if (predicate(*it))
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it = items.erase(it);
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else
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++it;
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}
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}
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template<class T>
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QString
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message_body(const mtx::events::collections::TimelineEvents &event)
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{
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return QString::fromStdString(std::get<T>(event).content.body);
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}
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//! Calculate the Levenshtein distance between two strings with character skipping.
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int
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levenshtein_distance(const std::string &s1, const std::string &s2);
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QPixmap
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scaleImageToPixmap(const QImage &img, int size);
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//! Convert a Content Matrix URI to an HTTP link.
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QString
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mxcToHttp(const QUrl &url, const QString &server, int port);
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//! Convert a ed25519 fingerprint into a human readable form
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QString
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humanReadableFingerprint(const std::string &ed25519);
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QString
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humanReadableFingerprint(const QString &ed25519);
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//! Retrieve the message body taking into account the `formatted_body` field.
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//! If the `format` of the message is not supported we fallback to `body`.
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template<typename RoomMessageT>
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QString
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getMessageBody(const RoomMessageT &event)
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{
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if (event.content.format.empty())
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return QString::fromStdString(event.content.body).toHtmlEscaped();
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if (event.content.format != mtx::common::FORMAT_MSG_TYPE)
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return QString::fromStdString(event.content.body).toHtmlEscaped();
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return QString::fromStdString(event.content.formatted_body);
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}
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//! Replace raw URLs in text with HTML link tags.
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QString
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linkifyMessage(const QString &body);
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//! Convert the input markdown text to html.
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QString
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markdownToHtml(const QString &text, bool rainbowify = false);
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//! Escape every html tag, that was not whitelisted
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QString
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escapeBlacklistedHtml(const QString &data);
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//! Generate a Rich Reply quote message
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QString
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getFormattedQuoteBody(const RelatedInfo &related, const QString &html);
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//! Get the body for the quote, depending on the event type.
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QString
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getQuoteBody(const RelatedInfo &related);
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//! Retrieve the color of the links based on the current theme.
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QString
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linkColor();
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//! Returns the hash code of the input QString
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uint32_t
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hashQString(const QString &input);
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//! Generate a color (matching #RRGGBB) that has an acceptable contrast to background that is based
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//! on the input string.
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QColor
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generateContrastingHexColor(const QString &input, const QColor &background);
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//! Given two luminance values, compute the contrast ratio between them.
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qreal
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computeContrast(const qreal &one, const qreal &two);
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//! Compute the luminance of a single color. Based on https://stackoverflow.com/a/9733420
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qreal
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luminance(const QColor &col);
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//! Center a widget in relation to another widget.
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void
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centerWidget(QWidget *widget, QWidget *parent);
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void
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restoreCombobox(QComboBox *combo, const QString &value);
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//! Read image respecting exif orientation
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QImage
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readImageFromFile(const QString &filename);
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//! Read image respecting exif orientation
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QImage
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readImage(const QByteArray &data);
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bool
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isReply(const mtx::events::collections::TimelineEvents &e);
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}
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