added new Shortcut class, moved stuff that was in MainWindow into it

added more error handling and logging, some was missing
removed some redundancy of setting the menu icons for add/remove, they're all set when clicking the button anyway

2 files changed, 414 insertions, 2 deletions

diff --git a/src/shared/util.cpp b/src/shared/util.cpp
index 072cee2d..2bf1dba6 100644
--- a/src/shared/util.cpp
+++ b/src/shared/util.cpp
@@ -20,6 +20,8 @@ along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"

 #include "windows_error.h"

 #include "error_report.h"

+#include "executableslist.h"

+#include "instancemanager.h"

 #include <utility.h>

 

 #include <sstream>

@@ -307,10 +309,324 @@ struct COMReleaser
   }

 };

 

+

 template <class T>

 using COMPtr = std::unique_ptr<T, COMReleaser>;

 

 

+class ShellLinkException {};

+

+// just a wrapper around IShellLink operations that throws ShellLinkException

+// on errors

+//

+class ShellLinkWrapper

+{

+public:

+  ShellLinkWrapper()

+  {

+    m_link = createShellLink();

+    m_file = createPersistFile();

+  }

+

+  void setPath(const QString& s)

+  {

+    if (s.isEmpty()) {

+      critical() << "path cannot be empty";

+      throw ShellLinkException();

+    }

+

+    const auto r = m_link->SetPath(s.toStdWString().c_str());

+    throwOnFail(r, QString("failed to set target path '%1'").arg(s));

+  }

+

+  void setArguments(const QString& s)

+  {

+    const auto r = m_link->SetArguments(s.toStdWString().c_str());

+    throwOnFail(r, QString("failed to set arguments '%1'").arg(s));

+  }

+

+  void setDescription(const QString& s)

+  {

+    if (s.isEmpty()) {

+      return;

+    }

+

+    const auto r = m_link->SetDescription(s.toStdWString().c_str());

+    throwOnFail(r, QString("failed to set description '%1'").arg(s));

+  }

+

+  void setIcon(const QString& file, int i)

+  {

+    if (file.isEmpty()) {

+      return;

+    }

+

+    const auto r = m_link->SetIconLocation(file.toStdWString().c_str(), i);

+    throwOnFail(r, QString("failed to set icon '%1' @ %2").arg(file).arg(i));

+  }

+

+  void setWorkingDirectory(const QString& s)

+  {

+    if (s.isEmpty()) {

+      return;

+    }

+

+    const auto r = m_link->SetWorkingDirectory(s.toStdWString().c_str());

+    throwOnFail(r, QString("failed to set working directory '%1'").arg(s));

+  }

+

+  void save(const QString& path)

+  {

+    const auto r = m_file->Save(path.toStdWString().c_str(), TRUE);

+    throwOnFail(r, QString("failed to save link '%1'").arg(path));

+  }

+

+private:

+  COMPtr<IShellLink> m_link;

+  COMPtr<IPersistFile> m_file;

+

+  QDebug critical()

+  {

+    return qCritical().noquote().nospace() << "system shortcut: ";

+  }

+

+  void throwOnFail(HRESULT r, const QString& s)

+  {

+    if (FAILED(r)) {

+      critical() << s << ", " << formatSystemMessageQ(r);

+      throw ShellLinkException();

+    }

+  }

+

+  COMPtr<IShellLink> createShellLink()

+  {

+    void* link = nullptr;

+

+    const auto r = CoCreateInstance(

+      CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER,

+      IID_IShellLink, &link);

+

+    throwOnFail(r, "failed to create IShellLink instance");

+

+    if (!link) {

+      critical() << "creating IShellLink worked, but pointer is null";

+      throw ShellLinkException();

+    }

+

+    return COMPtr<IShellLink>(static_cast<IShellLink*>(link));

+  }

+

+  COMPtr<IPersistFile> createPersistFile()

+  {

+    void* file = nullptr;

+

+    const auto r = m_link->QueryInterface(IID_IPersistFile, &file);

+    throwOnFail(r, "failed to get IPersistFile interface");

+

+    if (!file) {

+      critical() << "querying IPersistFile worked, but pointer is null";

+      throw ShellLinkException();

+    }

+

+    return COMPtr<IPersistFile>(static_cast<IPersistFile*>(file));

+  }

+};

+

+

+Shortcut::Shortcut()

+  : m_iconIndex(0)

+{

+}

+

+Shortcut::Shortcut(const Executable& exe)

+  : Shortcut()

+{

+  m_name = exe.title();

+  m_target = QFileInfo(qApp->applicationFilePath()).absoluteFilePath();

+

+  m_arguments = QString("\"moshortcut://%1:%2\"")

+      .arg(InstanceManager::instance().currentInstance())

+      .arg(exe.title());

+

+  m_description = QString("Run %1 with ModOrganizer").arg(exe.title());

+

+  if (exe.usesOwnIcon()) {

+    m_icon = exe.binaryInfo().absoluteFilePath();

+  }

+

+  m_workingDirectory = qApp->applicationDirPath();

+}

+

+Shortcut& Shortcut::name(const QString& s)

+{

+  m_name = s;

+  return *this;

+}

+

+Shortcut& Shortcut::target(const QString& s)

+{

+  m_target = s;

+  return *this;

+}

+

+Shortcut& Shortcut::arguments(const QString& s)

+{

+  m_arguments = s;

+  return *this;

+}

+

+Shortcut& Shortcut::description(const QString& s)

+{

+  m_description = s;

+  return *this;

+}

+

+Shortcut& Shortcut::icon(const QString& s, int index)

+{

+  m_icon = s;

+  m_iconIndex = index;

+  return *this;

+}

+

+Shortcut& Shortcut::workingDirectory(const QString& s)

+{

+  m_workingDirectory = s;

+  return *this;

+}

+

+bool Shortcut::exists(Locations loc) const

+{

+  const auto path = shortcutPath(loc);

+  if (path.isEmpty()) {

+    return false;

+  }

+

+  return QFileInfo(path).exists();

+}

+

+bool Shortcut::toggle(Locations loc)

+{

+  if (exists(loc)) {

+    return remove(loc);

+  } else {

+    return add(loc);

+  }

+}

+

+bool Shortcut::add(Locations loc)

+{

+  const auto path = shortcutPath(loc);

+  if (path.isEmpty()) {

+    return false;

+  }

+

+  if (m_target.isEmpty()) {

+    qCritical() << "system shortcut: target is empty";

+    return false;

+  }

+

+  try

+  {

+    ShellLinkWrapper link;

+

+    link.setPath(m_target);

+    link.setArguments(m_arguments);

+    link.setDescription(m_description);

+    link.setIcon(m_icon, m_iconIndex);

+    link.setWorkingDirectory(m_workingDirectory);

+

+    link.save(path);

+

+    return true;

+  }

+  catch(ShellLinkException&)

+  {

+  }

+

+  return false;

+}

+

+bool Shortcut::remove(Locations loc)

+{

+  const auto path = shortcutPath(loc);

+  if (path.isEmpty()) {

+    return false;

+  }

+

+  if (!QFile::exists(path)) {

+    qCritical().nospace().noquote()

+      << "system shortcut: can't remove '" << path << "', file not found";

+

+    return false;

+  }

+

+  if (!QFile::remove(path)) {

+    qCritical().nospace().noquote()

+      << "system shortcut: failed to remove '" << path << "'";

+

+    return false;

+  }

+

+  return true;

+}

+

+QString Shortcut::shortcutPath(Locations loc) const

+{

+  const auto dir = shortcutDirectory(loc);

+  if (dir.isEmpty()) {

+    return {};

+  }

+

+  const auto file = shortcutFilename();

+  if (file.isEmpty()) {

+    return {};

+  }

+

+  return dir + QDir::separator() + file;

+}

+

+QString Shortcut::shortcutDirectory(Locations loc) const

+{

+  QString dir;

+

+  try

+  {

+    switch (loc)

+    {

+      case Desktop:

+        dir = MOBase::getDesktopDirectory();

+        break;

+

+      case StartMenu:

+        dir = MOBase::getStartMenuDirectory();

+        break;

+

+      case None:

+      default:

+        qCritical() << "system shortcut: bad location " << loc;

+        return {};

+    }

+  }

+  catch(std::exception&)

+  {

+    return {};

+  }

+

+  return QDir::toNativeSeparators(dir);

+}

+

+QString Shortcut::shortcutFilename() const

+{

+  if (m_name.isEmpty()) {

+    qCritical() << "system shortcut: name is empty";

+    return {};

+  }

+

+  return m_name + ".lnk";

+}

+

+

+

 class WMI

 {

 public:

@@ -674,7 +990,7 @@ std::optional<SecurityProduct> Environment::getWindowsFirewall() const
     if (FAILED(hr) || !rawPolicy) {

       qCritical()

         << "CoCreateInstance for NetFwPolicy2 failed, "

-        << formatSystemMessage(hr);

+        << formatSystemMessageQ(hr);

 

       return {};

     }

@@ -690,7 +1006,7 @@ std::optional<SecurityProduct> Environment::getWindowsFirewall() const
     {

       qCritical()

         << "get_FirewallEnabled failed, "

-        << formatSystemMessage(hr);

+        << formatSystemMessageQ(hr);

 

       return {};

     }

diff --git a/src/shared/util.h b/src/shared/util.h
index 4df1d13c..a40fa201 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -29,6 +29,8 @@ along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
 

 #include <versioninfo.h>

 

+class Executable;

+

 namespace MOShared {

 

 /// Test if a file (or directory) by the specified name exists

@@ -52,6 +54,100 @@ bool CaseInsensitiveEqual(const std::wstring &lhs, const std::wstring &rhs);
 namespace env

 {

 

+// an application shortcut that can be either on the desktop or the start menu

+//

+class Shortcut

+{

+public:

+  // location of a shortcut

+  //

+  enum Locations

+  {

+    None = 0,

+

+    // on the desktop

+    Desktop,

+

+    // in the start menu

+    StartMenu

+  };

+

+

+  // empty shortcut

+  //

+  Shortcut();

+

+  // shortcut from an executable

+  //

+  explicit Shortcut(const Executable& exe);

+

+  // sets the name of the shortcut, shown on icons and start menu entries

+  //

+  Shortcut& name(const QString& s);

+

+  // the program to start

+  //

+  Shortcut& target(const QString& s);

+

+  // arguments to pass

+  //

+  Shortcut& arguments(const QString& s);

+

+  // shows in the status bar of explorer, for example

+  //

+  Shortcut& description(const QString& s);

+

+  // path to a binary that contains the icon and its index

+  //

+  Shortcut& icon(const QString& s, int index=0);

+

+  // "start in" option for this shortcut

+  //

+  Shortcut& workingDirectory(const QString& s);

+

+

+  // returns whether this shortcut already exists at the given location; this

+  // does not check whether the shortcut parameters are different, it merely if

+  // the .lnk file exists

+  //

+  bool exists(Locations loc) const;

+

+  // calls remove() if exists(), or add()

+  //

+  bool toggle(Locations loc);

+

+  // adds the shortcut to the given location

+  //

+  bool add(Locations loc);

+

+  // removes the shortcut from the given location

+  //

+  bool remove(Locations loc);

+

+private:

+  QString m_name;

+  QString m_target;

+  QString m_arguments;

+  QString m_description;

+  QString m_icon;

+  int m_iconIndex;

+  QString m_workingDirectory;

+

+

+  // returns the path where the shortcut file should be saved

+  //

+  QString shortcutPath(Locations loc) const;

+

+  // returns the directory where the shortcut file should be saved

+  //

+  QString shortcutDirectory(Locations loc) const;

+

+  // returns the filename of the shortcut file that should be used when saving

+  //

+  QString shortcutFilename() const;

+};

+

+

 // represents one module

 //

 class Module