1a96899336
- Have LinkPreviewers stored in NeoChatConnection so that they don't have to be reloaded everytime the MessageContentModel is refreshed - This means the link is never changed (it will be swiched for a new previewer with the new link) - LinkPreviewers are stored by URL so they can be re-used by any event with the same URL BUG: 484927 (because the offending code is ripped out)
106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
// SPDX-FileCopyrightText: 2022 Bharadwaj Raju <bharadwaj.raju777@protonmail.com>
|
|
// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-or-later OR LicenseRef-KDE-Accepted-GPL
|
|
|
|
#pragma once
|
|
|
|
#include <QObject>
|
|
#include <QQmlEngine>
|
|
#include <QUrl>
|
|
|
|
namespace Quotient
|
|
{
|
|
class RoomMessageEvent;
|
|
}
|
|
|
|
class NeoChatRoom;
|
|
|
|
/**
|
|
* @class LinkPreviewer
|
|
*
|
|
* A class to download the link preview info for a URL and provide a QML interface for it.
|
|
*
|
|
* To use set the URL property and then access the other parameters which will be
|
|
* populated once loaded is true.
|
|
*/
|
|
class LinkPreviewer : public QObject
|
|
{
|
|
Q_OBJECT
|
|
QML_ELEMENT
|
|
|
|
/**
|
|
* @brief The URL to get the preview for.
|
|
*/
|
|
Q_PROPERTY(QUrl url READ url NOTIFY urlChanged)
|
|
|
|
/**
|
|
* @brief Whether the preview information has been loaded.
|
|
*/
|
|
Q_PROPERTY(bool loaded READ loaded NOTIFY loadedChanged)
|
|
|
|
/**
|
|
* @brief The title of the preview.
|
|
*/
|
|
Q_PROPERTY(QString title READ title NOTIFY titleChanged)
|
|
|
|
/**
|
|
* @brief The description of the preview.
|
|
*/
|
|
Q_PROPERTY(QString description READ description NOTIFY descriptionChanged)
|
|
|
|
/**
|
|
* @brief The image source for the preview.
|
|
*/
|
|
Q_PROPERTY(QUrl imageSource READ imageSource NOTIFY imageSourceChanged)
|
|
|
|
/**
|
|
* @brief Whether the there is a link to preview.
|
|
*
|
|
* A linkPreviwer is empty if the URL is empty.
|
|
*/
|
|
Q_PROPERTY(bool empty READ empty NOTIFY emptyChanged)
|
|
|
|
public:
|
|
LinkPreviewer() = default;
|
|
explicit LinkPreviewer(const QUrl &url, QObject *parent = nullptr);
|
|
|
|
[[nodiscard]] QUrl url() const;
|
|
[[nodiscard]] bool loaded() const;
|
|
[[nodiscard]] QString title() const;
|
|
[[nodiscard]] QString description() const;
|
|
[[nodiscard]] QUrl imageSource() const;
|
|
[[nodiscard]] bool empty() const;
|
|
|
|
/**
|
|
* @brief Whether the given event has at least 1 pre-viewable link.
|
|
*
|
|
* A link is only pre-viewable if it is http, https or something starting with www.
|
|
*/
|
|
static bool hasPreviewableLinks(const Quotient::RoomMessageEvent *event);
|
|
|
|
/**
|
|
* @brief Return the link to be previewed from the given event.
|
|
*
|
|
* This function is designed to give only links that should be previewed so
|
|
* http, https or something starting with www. The first valid link is returned.
|
|
*/
|
|
static QUrl linkPreview(const Quotient::RoomMessageEvent *event);
|
|
|
|
private:
|
|
bool m_loaded;
|
|
QString m_title = QString();
|
|
QString m_description = QString();
|
|
QUrl m_imageSource = QUrl();
|
|
QUrl m_url;
|
|
|
|
void loadUrlPreview();
|
|
|
|
Q_SIGNALS:
|
|
void loadedChanged();
|
|
void titleChanged();
|
|
void descriptionChanged();
|
|
void imageSourceChanged();
|
|
void urlChanged();
|
|
void emptyChanged();
|
|
};
|
|
Q_DECLARE_METATYPE(LinkPreviewer *)
|