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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsLocalHandlerAppWin.h"
#include "nsString.h"
#include "nsIWindowsRegKey.h"
#include "nsILocalFileWin.h"
#include "nsComponentManagerUtils.h"
static nsresult GetPrettyNameFromFileDescription(
const nsCOMPtr<nsILocalFileWin>& executableOnWindows,
const nsString& assignedName, nsString& aName) {
nsresult result = NS_ERROR_FAILURE;
if (executableOnWindows) {
result = executableOnWindows->GetVersionInfoField("FileDescription", aName);
if (NS_FAILED(result) || aName.IsEmpty()) {
if (!assignedName.IsEmpty()) {
aName = assignedName;
} else {
result = executableOnWindows->GetLeafName(aName);
}
if (!aName.IsEmpty()) {
result = NS_OK;
} else {
result = NS_ERROR_FAILURE;
}
}
}
return result;
}
static nsresult GetValueFromRegistry(nsString& aName,
const nsCOMPtr<nsIWindowsRegKey>& appKey,
const nsString& registryPath,
const nsString& valueName) {
nsresult rv =
appKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT, registryPath,
nsIWindowsRegKey::ACCESS_QUERY_VALUE);
if (NS_SUCCEEDED(rv)) {
nsAutoString applicationName;
if (NS_SUCCEEDED(appKey->ReadStringValue(valueName, applicationName))) {
aName = applicationName;
return NS_OK;
}
}
return NS_ERROR_FAILURE;
};
std::function<nsresult(nsString&)>
nsLocalHandlerAppWin::GetPrettyNameOnNonMainThreadCallback() {
// Make a copy of executable so that we don't have to worry about any other
// threads
nsCOMPtr<nsIFile> executable;
mExecutable->Clone(getter_AddRefs(executable));
// Get the windows interface to the file
nsCOMPtr<nsILocalFileWin> executableOnWindows(do_QueryInterface(executable));
auto appIdOrName = mAppIdOrName;
auto assignedName = mName;
std::function<nsresult(nsString&)> callback =
[assignedName, appIdOrName,
executableOnWindows =
std::move(executableOnWindows)](nsString& aName) -> nsresult {
// On all platforms, we want a human readable name for an application.
// For example: msedge -> Microsoft Edge Browser
//
// This is generated on mac directly in nsLocalHandlerAppMac::GetName.
// The auto-test coverage for GetName isn't thorough enough to be
// confident that changing GetName on Windows won't cause problems.
//
// Besides that, this is a potentially slow thing to execute, and making
// it asynchronous is preferable. There's a fallback to GetName() in the
// nsLocalHandlerApp::PrettyNameAsync to cover Mac and Linux.
if (appIdOrName.IsEmpty()) {
return GetPrettyNameFromFileDescription(executableOnWindows, assignedName,
aName);
}
nsCOMPtr<nsIWindowsRegKey> appKey =
do_CreateInstance("@mozilla.org/windows-registry-key;1");
if (!appKey) {
return GetPrettyNameFromFileDescription(executableOnWindows, assignedName,
aName);
}
// Check for ApplicationName first. Path:
// HKEY_CLASSES_ROOT\${APP_ID}\Application, Value entry: ApplicationName
nsresult rv =
GetValueFromRegistry(aName, appKey, appIdOrName + u"\\Application"_ns,
u"ApplicationName"_ns);
if (NS_SUCCEEDED(rv) && !aName.IsEmpty()) {
return rv;
}
// Check for the default on the Applications entry next.
// Path: HKEY_CLASSES_ROOT\Applications\${APP_ID}, Value entry: ""
// (default)
rv = GetValueFromRegistry(aName, appKey, u"Applications\\"_ns + appIdOrName,
u""_ns);
if (NS_SUCCEEDED(rv) && !aName.IsEmpty()) {
return rv;
}
// Fallthrough to getting the name from the file description
return GetPrettyNameFromFileDescription(executableOnWindows, assignedName,
aName);
};
return callback;
}
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