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/***************************************************************************************************
Copyright (C) 2024 The Qt Company Ltd.
SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
***************************************************************************************************/
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace QtVsTools.Qml.Debug
{
using Core;
using static Core.Common.Utils;
struct QmlFile
{
public string QrcPath;
public string FilePath;
}
class FileSystem : Concurrent
{
Dictionary<string, QmlFile> files;
public static FileSystem Create()
{
return new FileSystem
{
files = new Dictionary<string, QmlFile>()
};
}
static readonly string[] KNOWN_EXTENSIONS = { ".qml", ".js" };
private FileSystem()
{ }
public IEnumerable<string> QrcPaths => files.Values.GroupBy(x => x.QrcPath).Select(x => x.Key);
string QrcPath(string prefix, string filePath)
{
if (!string.IsNullOrEmpty(prefix) && !prefix.EndsWith("/"))
prefix += Path.AltDirectorySeparatorChar;
while (!string.IsNullOrEmpty(prefix) && prefix[0] == Path.AltDirectorySeparatorChar)
prefix = prefix.Substring(1);
return $"qrc:///{prefix}{filePath}";
}
public void RegisterRccFile(string rccFilePath)
{
XDocument rccXml;
try {
var xmlText = File.ReadAllText(rccFilePath, Encoding.UTF8);
var settings = new XmlReaderSettings
{
DtdProcessing = DtdProcessing.Ignore
};
using (var reader = XmlReader.Create(new StringReader(xmlText), settings)) {
rccXml = XDocument.Load(reader);
}
} catch (Exception exception) {
exception.Log();
return;
}
var files = rccXml
.Elements("RCC")
.Elements("qresource")
.SelectMany(x => x.Elements("file")
.Select(y => new
{
Prefix = x.Attribute("prefix"),
Alias = y.Attribute("alias"),
Path = HelperFunctions.ToNativeSeparator((string)y)
})
.Where(z => KNOWN_EXTENSIONS.Contains(Path.GetExtension(z.Path), CaseIgnorer)));
foreach (var file in files) {
string qrcPath;
if (file.Alias != null)
qrcPath = (string)file.Alias;
else if (!Path.IsPathRooted(file.Path))
qrcPath = HelperFunctions.FromNativeSeparators(file.Path);
else
continue;
var qrcPathPrefix = file.Prefix != null ? (string)file.Prefix : "";
if (!string.IsNullOrEmpty(qrcPathPrefix) && !qrcPathPrefix.EndsWith("/"))
qrcPathPrefix += Path.AltDirectorySeparatorChar;
while (!string.IsNullOrEmpty(qrcPathPrefix) && qrcPathPrefix[0] == Path.AltDirectorySeparatorChar)
qrcPathPrefix = qrcPathPrefix.Substring(1);
var qmlFile = new QmlFile
{
FilePath = Path.Combine(Path.GetDirectoryName(rccFilePath), file.Path),
QrcPath = $"qrc:///{qrcPathPrefix}{qrcPath}"
};
this.files[qmlFile.QrcPath.ToLower()] = qmlFile;
this.files[qmlFile.FilePath.ToUpper()] = qmlFile;
}
}
QmlFile FromQrcPath(string qrcPath)
{
// Normalize qrc path:
// - Only pre-condition is that qrcPath have a "qrc:" prefix
// - It might have any number of '/' after that, or none at all
// - A "qrc:///" prefix is required to match the mapping key
// - to enforce this, the "qrc:" prefix is removed, as well as any leading '/'
// - then the "normalized" prefix "qrc:///" is added
if (!qrcPath.StartsWith("qrc:"))
return default;
qrcPath = qrcPath.Substring("qrc:".Length);
while (!string.IsNullOrEmpty(qrcPath) && qrcPath[0] == Path.AltDirectorySeparatorChar)
qrcPath = qrcPath.Substring(1);
qrcPath = $"qrc:///{qrcPath}";
return files.TryGetValue(qrcPath, out var file) ? file : default;
}
QmlFile FromFileUrl(string fileUrl)
{
string filePath = fileUrl.Substring("file://".Length);
while (!string.IsNullOrEmpty(filePath) && filePath[0] == Path.AltDirectorySeparatorChar)
filePath = filePath.Substring(1);
if (!File.Exists(filePath))
return default;
return new QmlFile
{
QrcPath = fileUrl,
FilePath = HelperFunctions.ToNativeSeparator(filePath)
};
}
QmlFile FromFilePath(string filePath)
{
string fullPath;
try {
fullPath = Path.GetFullPath(filePath).ToUpper();
} catch {
return default;
}
if (files.TryGetValue(fullPath, out QmlFile file))
return file;
return new QmlFile
{
FilePath = fullPath,
QrcPath = new Uri(fullPath).ToString().ToLower()
};
}
public QmlFile this[string path]
{
get
{
if (path.StartsWith("qrc:", IgnoreCase))
return FromQrcPath(path.ToLower());
if (path.StartsWith("file:", IgnoreCase))
return FromFileUrl(path);
return FromFilePath(path.ToUpper());
}
}
}
}
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