Index: app/CMakeLists.txt
===================================================================
--- app/CMakeLists.txt
+++ app/CMakeLists.txt
@@ -29,6 +29,24 @@
     KF5::KIOFileWidgets
     KF5::Parts)
 
+# we provide our own Info.plist containing a simple "we open anything" instruction.
+if(APPLE)
+    # own plist template
+    set_target_properties (ark PROPERTIES MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/MacOSXBundleInfo.plist.in)
+
+    # the MacOSX bundle display name property (CFBundleDisplayName) is not currently supported by cmake,
+    # so has to be set for all targets in this cmake file
+    set(MACOSX_BUNDLE_DISPLAY_NAME Ark)
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_GUI_IDENTIFIER "org.kde.Ark")
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Ark")
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_DISPLAY_NAME "Ark")
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_INFO_STRING "Ark - KDE Archiving Tool")
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_LONG_VERSION_STRING "Ark ${KDE_APPLICATIONS_VERSION}")
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_SHORT_VERSION_STRING "${KDE_APPLICATIONS_VERSION}")
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_BUNDLE_VERSION "${KDE_APPLICATIONS_VERSION}")
+    set_target_properties(ark PROPERTIES MACOSX_BUNDLE_COPYRIGHT "1997-2017, The Ark Developers")
+endif()
+
 # Remove duplicate mimetypes from list of supported formats.
 list(REMOVE_DUPLICATES SUPPORTED_ARK_MIMETYPES)
 
Index: app/MacOSXBundleInfo.plist.in
===================================================================
--- /dev/null
+++ app/MacOSXBundleInfo.plist.in
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+        <key>NSPrincipalClass</key>
+        <string>NSApplication</string>
+        <key>NSHighResolutionCapable</key>
+        <string>True</string>
+        <key>CFBundleDevelopmentRegion</key>
+        <string>English</string>
+        <key>CFBundleExecutable</key>
+        <string>${MACOSX_BUNDLE_EXECUTABLE_NAME}</string>
+        <key>CFBundleGetInfoString</key>
+        <string>${MACOSX_BUNDLE_INFO_STRING}</string>
+        <key>CFBundleIconFile</key>
+        <string>${MACOSX_BUNDLE_ICON_FILE}</string>
+        <key>CFBundleIdentifier</key>
+        <string>${MACOSX_BUNDLE_GUI_IDENTIFIER}</string>
+        <key>CFBundleInfoDictionaryVersion</key>
+        <string>6.0</string>
+        <key>CFBundleLongVersionString</key>
+        <string>${MACOSX_BUNDLE_LONG_VERSION_STRING}</string>
+        <key>CFBundleName</key>
+        <string>${MACOSX_BUNDLE_BUNDLE_NAME}</string>
+        <key>CFBundlePackageType</key>
+        <string>APPL</string>
+        <key>CFBundleShortVersionString</key>
+        <string>${MACOSX_BUNDLE_SHORT_VERSION_STRING}</string>
+        <key>CFBundleSignature</key>
+        <string>????</string>
+        <key>CFBundleVersion</key>
+        <string>${MACOSX_BUNDLE_BUNDLE_VERSION}</string>
+        <key>CSResourcesFileMapped</key>
+        <true/>
+        <key>LSRequiresCarbon</key>
+        <true/>
+        <key>NSHumanReadableCopyright</key>
+        <string>${MACOSX_BUNDLE_COPYRIGHT}</string>
+        <key>LSMultipleInstancesProhibited</key>
+        <true/>
+        <key>CFBundleDocumentTypes</key>
+        <array>
+            <dict>
+                <key>CFBundleTypeExtensions</key>
+                <array>
+                        <string>*</string>
+                </array>
+                <key>CFBundleTypeName</key>
+                <string>NSStringPboardType</string>
+                <key>CFBundleTypeRole</key>
+                <string>Editor</string>
+            </dict>
+        </array>
+</dict>
+</plist>
Index: app/main.cpp
===================================================================
--- app/main.cpp
+++ app/main.cpp
@@ -31,6 +31,7 @@
 #include <QCommandLineParser>
 #include <QByteArray>
 #include <QFileInfo>
+#include <QFileOpenEvent>
 
 #include <KAboutData>
 #include <KCrash>
@@ -40,6 +41,31 @@
 
 using Kerfuffle::AddToArchive;
 
+class OpenFileEventHandler : public QObject
+{
+    Q_OBJECT
+public:
+    OpenFileEventHandler(QApplication *parent, MainWindow *w)
+        : QObject(parent)
+        , m_window(w)
+    {
+        parent->installEventFilter(this);
+    }
+
+    bool eventFilter(QObject *obj, QEvent *event) override
+    {
+        if (event->type() == QEvent::FileOpen) {
+            QFileOpenEvent *openEvent = static_cast<QFileOpenEvent*>(event);
+            qCDebug(ARK) << "File open event:" << openEvent->url() << "for window" << m_window;
+            m_window->openUrl(openEvent->url());
+            return true;
+        }
+        return QObject::eventFilter(obj, event);
+    }
+private:
+    MainWindow *m_window;
+};
+
 int main(int argc, char **argv)
 {
     QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts); // Required for the webengine part.
@@ -127,7 +153,7 @@
                         QStringLiteral("http://littlesvr.ca/misc/contactandrew.php"));
 
     KAboutData::setApplicationData(aboutData);
-    application.setWindowIcon(QIcon::fromTheme(QStringLiteral("ark")));
+    application.setWindowIcon(QIcon::fromTheme(QStringLiteral("ark"), application.windowIcon()));
 
     QCommandLineParser parser;
     parser.addHelpOption();
@@ -293,10 +319,15 @@
                 }
                 window->openUrl(QUrl::fromUserInput(urls.at(0), QString(), QUrl::AssumeLocalFile));
             }
+            new OpenFileEventHandler(&application, window);
+            // Ark doesn't provide a fullscreen mode; remove the corresponding window button
+            window->setWindowFlags(window->windowFlags() & ~Qt::WindowFullscreenButtonHint);
             window->show();
         }
     }
 
     qCDebug(ARK) << "Entering application loop";
     return application.exec();
 }
+
+#include "main.moc"