Bonsai Mac app to quickly open .ifc files

src/bonsai/bonsai/bim/__init__.py

@@ -110,6 +110,7 @@ classes = [
     operator.ClippingPlaneCutWithCappings,
     operator.CloseBlendWarning,
     operator.CloseError,
+    operator.CreateMacBonsaiApp,
     operator.CopyTextToClipboard,
     operator.EditBlenderCollection,
     operator.FileAssociate,

src/bonsai/bonsai/bim/operator.py

@@ -272,6 +272,9 @@ class WinRegistryKeys(Enum):
         return cls.__bonsai_key
 
 
+LIBS_DESKTOP = Path(__file__).parent.parent / "libs" / "desktop"
+
+
 class FileAssociate(bpy.types.Operator):
     bl_idname = "bim.file_associate"
     bl_label = "Associate Bonsai with *.ifc files"
@@ -288,11 +291,10 @@ class FileAssociate(bpy.types.Operator):
         return False
 
     def execute(self, context):
-        src_dir = os.path.join(os.path.dirname(__file__), "../libs/desktop")
         binary_path = bpy.app.binary_path
         if platform.system() == "Linux":
             destdir = os.path.join(os.environ["HOME"], ".local")
-            self.install_desktop_linux(src_dir=src_dir, destdir=destdir, binary_path=binary_path)
+            self.install_desktop_linux(src_dir=LIBS_DESKTOP, destdir=destdir, binary_path=binary_path)
         elif platform.system() == "Windows":
             self.install_desktop_windows(binary_path)
         self.report({"INFO"}, "Associations established.")
@@ -404,6 +406,7 @@ class FileUnassociate(bpy.types.Operator):
             self.uninstall_desktop_linux(destdir=destdir)
         elif platform.system() == "Windows":
             self.uninstall_desktop_windows()
+
         return {"FINISHED"}
 
     def uninstall_desktop_windows(self) -> None:
@@ -474,6 +477,97 @@ class FileUnassociate(bpy.types.Operator):
             pass
 
 
+class CreateMacBonsaiApp(bpy.types.Operator):
+    bl_idname = "bim.create_mac_bonsai_app"
+    bl_label = "Create Bonsai App to Open .ifc Files."
+    bl_options = set()
+    bl_description = (
+        "Create 'Bonsai' application on Mac.\n\n"
+        "To make Mac use Bonsai to open IFC files automatically:\n"
+        "- Open context menu on any .ifc file\n"
+        "- Open With\n"
+        "- Other\n"
+        "- Select Bonsai in 'Applications'\n"
+        "- Check 'Always Open With'\n"
+        "- 'Open'\n"
+        "\n"
+        "ALT+click to uninstall Bonsai app if it was installed previously."
+    )
+
+    uninstall: bpy.props.BoolProperty(options={"SKIP_SAVE"})  # pyright: ignore[reportRedeclaration]
+
+    if TYPE_CHECKING:
+        uninstall: bool
+
+    @classmethod
+    def poll(cls, context):
+        if platform.system() == "Darwin":
+            return True
+        cls.poll_message_set("Mac Only.")
+        return False
+
+    def invoke(self, context, event):
+        self.uninstall = event.alt
+        return self.execute(context)
+
+    def execute(self, context):
+        # I've tried to create AppleScript that would create this kind of app using Automator,
+        # but using poorly document AppleScript was unbearable :(
+        # So we just try to create automator app ourselves from a template.
+
+        # Couldn't find a way to automatically establish .ifc to app association,
+        # without installing some other app to handle it (e.g. 'duti').
+        # So currently we rely on the final user action to select Bonsai in 'Open With'.
+
+        # NOTE: shell script to execute is part of .wflow file.
+        app_path = Path("/Applications") / "Bonsai.app"
+
+        if self.uninstall:
+            if app_path.exists():
+                shutil.rmtree(app_path)
+                self.report({"INFO"}, "Bonsai app was successfully removed.")
+            else:
+                self.report({"WARNING"}, f"Couldn't remove Bonsai app as it's not found at '{app_path}'.")
+            return {"FINISHED"}
+
+        if app_path.exists():
+            self.report({"WARNING"}, f"Bonsai.app already exists at '{app_path}'.")
+            return {"FINISHED"}
+
+        # 1. Create .app bundle structure
+        contents = app_path / "Contents"
+        macos = contents / "MacOS"
+        resources = contents / "Resources"
+        for p in (macos, resources):
+            p.mkdir(parents=True, exist_ok=True)
+
+        # Copy Automator Application Stub.
+        stub_src = Path(
+            "/System/Library/CoreServices/Automator Application Stub.app/Contents/MacOS/Automator Application Stub"
+        )
+        stub_dest = macos / "Automator Application Stub"
+        shutil.copy(stub_src, stub_dest)
+        stub_dest.chmod(0o755)
+
+        # xml files.
+        shutil.copy2(LIBS_DESKTOP / "Mac" / "Info.plist", contents / "Info.plist")
+        wflow_template = (LIBS_DESKTOP / "Mac" / "document.wflow").read_text()
+        wflow_template = wflow_template.replace("{{BLENDER_BINARY}}", bpy.app.binary_path)
+        (contents / "document.wflow").write_text(wflow_template)
+
+        # Convert PNG icon to ICNS.
+        png_icon = LIBS_DESKTOP / "bonsai.png"
+        icns_icon = app_path / "Contents/Resources/AppIcon.icns"
+        subprocess.run(["sips", "-s", "format", "icns", png_icon, "--out", icns_icon], check=True)
+
+        self.report(
+            {"INFO"},
+            "Bonsai app was successfully created. "
+            f"Follow instructions in '{self.bl_label}' description to use Bonsai for .ifc files automatically.",
+        )
+        return {"FINISHED"}
+
+
 class OpenUpstream(bpy.types.Operator):
     bl_idname = "bim.open_upstream"
     bl_label = "Open Upstream Reference"

src/bonsai/bonsai/bim/ui.py

@@ -521,9 +521,13 @@ class BIM_ADDON_preferences(bpy.types.AddonPreferences):
         row = layout.row()
         row.operator("bim.open_upstream", text="Visit Wiki").page = "wiki"
         row.operator("bim.open_upstream", text="Visit Community").page = "community"
+
         row = layout.row()
-        row.operator("bim.file_associate", icon="LOCKVIEW_ON")
-        row.operator("bim.file_unassociate", icon="LOCKVIEW_OFF")
+        if platform.system() == "Darwin":
+            row.operator("bim.create_mac_bonsai_app", icon="LOCKVIEW_ON")
+        else:
+            row.operator("bim.file_associate", icon="LOCKVIEW_ON")
+            row.operator("bim.file_unassociate", icon="LOCKVIEW_OFF")
 
         bonsai.bim.helper.draw_expandable_panel(self.layout, context, "Interface", self.draw_interface_settings)
         bonsai.bim.helper.draw_expandable_panel(self.layout, context, "Command Paths", self.draw_commands)

src/bonsai/bonsai/libs/desktop/mac/Info.plist

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>AMIsApplet</key>
+    <true/>
+    <key>AMStayOpen</key>
+    <false/>
+    <key>CFBundleExecutable</key>
+    <string>Automator Application Stub</string>
+    <key>CFBundleIconFile</key>
+    <string>AppIcon</string>
+    <key>CFBundleIdentifier</key>
+    <string>com.apple.automator.Bonsai</string>
+    <key>CFBundleName</key>
+    <string>Bonsai</string>
+    <key>CFBundlePackageType</key>
+    <string>APPL</string>
+    <key>CFBundleDocumentTypes</key>
+    <array>
+        <dict>
+            <key>CFBundleTypeExtensions</key>
+            <array>
+                <string>ifc</string>
+            </array>
+            <key>CFBundleTypeName</key>
+            <string>IFC File</string>
+            <key>CFBundleTypeRole</key>
+            <string>Editor</string>
+        </dict>
+    </array>
+    <key>LSUIElement</key>
+    <true/>
+</dict>
+</plist>

src/bonsai/bonsai/libs/desktop/mac/document.wflow

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>AMApplicationBuild</key>
+    <string>526</string>
+    <key>AMApplicationVersion</key>
+    <string>2.10</string>
+    <key>AMDocumentVersion</key>
+    <string>2</string>
+    <key>actions</key>
+    <array>
+        <dict>
+            <key>action</key>
+            <dict>
+                <key>ActionBundlePath</key>
+                <string>/System/Library/Automator/Run Shell Script.action</string>
+                <key>ActionParameters</key>
+                <dict>
+                    <key>COMMAND_STRING</key>
+                    <string>"{{BLENDER_BINARY}}" --python-expr "import bpy; \
+    import sys; \
+    filepath = sys.argv[sys.argv.index('--') + 1]; \
+    bpy.ops.bim.load_project(filepath=filepath)" -- "$1"</string>
+                    <key>CheckedForUserDefaultShell</key>
+                    <true/>
+                    <key>inputMethod</key>
+                    <integer>1</integer>
+                    <key>shell</key>
+                    <string>/bin/zsh</string>
+                    <key>source</key>
+                    <string></string>
+                </dict>
+                <key>BundleIdentifier</key>
+                <string>com.apple.RunShellScript</string>
+                <key>Class Name</key>
+                <string>RunShellScriptAction</string>
+            </dict>
+        </dict>
+    </array>
+    <key>workflowMetaData</key>
+    <dict>
+        <key>workflowTypeIdentifier</key>
+        <string>com.apple.Automator.application</string>
+    </dict>
+</dict>
+</plist>