mirror of
https://github.com/sqlitebrowser/sqlitebrowser.git
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3e4f3fc3d2
This adds a new dock to the main window that contains all the remote functionality (or is supposed to contain it all in the future). It also adds a directory browsing feature which allows you to browse through the folders and files on the dbhub server. By double clicking a database you can download and open it. The Open Remote menu action isn't needed anymore and has been removed. This also fixes an issue with pushing databases where, after sending the file is completed, the save dialog was opened. Note that this is still WIP and is far from polished.
111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
#ifndef REMOTEMODEL_H
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#define REMOTEMODEL_H
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#include <QAbstractItemModel>
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#include <QStringList>
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class RemoteDatabase;
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// List of fields stored in the JSON data
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enum RemoteModelColumns
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{
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RemoteModelColumnName,
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RemoteModelColumnType,
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RemoteModelColumnUrl,
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RemoteModelColumnVersion,
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RemoteModelColumnSize,
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RemoteModelColumnLastModified,
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RemoteModelColumnCount
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};
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class RemoteModelItem
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{
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public:
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RemoteModelItem(RemoteModelItem* parent = nullptr);
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~RemoteModelItem();
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QVariant value(RemoteModelColumns column) const;
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void setValue(RemoteModelColumns column, QVariant value);
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bool fetchedDirectoryList() const;
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void setFetchedDirectoryList(bool fetched);
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void appendChild(RemoteModelItem* item);
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RemoteModelItem* child(int row) const;
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RemoteModelItem* parent() const;
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int childCount() const;
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int row() const;
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// This function assumes the JSON value it's getting passed is an array ("[{...}, {...}, {...}, ...]"). It returns a list of model items, one
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// per array entry and each with the specified parent set.
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static QList<RemoteModelItem*> loadArray(const QJsonValue& value, RemoteModelItem* parent = nullptr);
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private:
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// These are just the fields from the json objects returned by the dbhub.io server
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QVariant m_values[RemoteModelColumnCount];
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// Child items and parent item
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QList<RemoteModelItem*> m_children;
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RemoteModelItem* m_parent;
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// Indicates whether we already tried fetching a directory listing for this item. This serves two purposes:
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// 1) When having an empty directory this allows us to remove the expandable flag for this item.
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// 2) Between sending a network request and getting the reply this flag is already set, avoiding a second or third request being sent in the meantime.
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bool m_fetchedDirectoryList;
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};
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class RemoteModel : public QAbstractItemModel
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{
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Q_OBJECT
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public:
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explicit RemoteModel(QObject* parent, RemoteDatabase& remote);
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virtual ~RemoteModel();
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void setNewRootDir(const QString& url, const QString& cert);
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QModelIndex index(int row, int column,const QModelIndex& parent = QModelIndex()) const;
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QModelIndex parent(const QModelIndex& index) const;
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QVariant data(const QModelIndex& index, int role) const;
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QVariant headerData(int section, Qt::Orientation orientation, int role) const;
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int rowCount(const QModelIndex& parent = QModelIndex()) const;
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int columnCount(const QModelIndex& parent = QModelIndex()) const;
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bool hasChildren(const QModelIndex& parent) const;
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bool canFetchMore(const QModelIndex& parent) const;
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void fetchMore(const QModelIndex& parent);
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// This helper function takes a model index and returns the according model item. An invalid model index is used to indicate the
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// root item, so if the index is invalid the root item is returned. This means that if you need to check for actual invalid indices
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// this needs to be done prior to calling this function.
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const RemoteModelItem* modelIndexToItem(const QModelIndex& idx) const;
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// Returns the current client certificate
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const QString& currentClientCertificate() const;
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private slots:
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// This is called whenever a network reply containing a directory listing arrives. json contains the reply data, userdata
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// contains some custom data passed to the request. In this case we expect this to be the model index of the parent tree item.
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void parseDirectoryListing(const QString& json, const QVariant& userdata);
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private:
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// Pointer to the root item. This contains all the actual item data.
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RemoteModelItem* rootItem;
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// Thr header list is a list of column titles. It's a static list that's getting filled in the constructor.
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QStringList headerList;
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// Reference to the remote database object which is stored somewhere in the main window.
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RemoteDatabase& remoteDatabase;
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// This stores the currently used network identity so it can be used for further requests, e.g. for
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// lazy population.
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QString currentRootDirectory;
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QString currentClientCert;
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};
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#endif
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