Fix pywebview GUI errors by implementing fallback browser approach

main.py

@@ -1,5 +1,5 @@
 from os_computer_use.streaming import Sandbox, DisplayClient
-from os_computer_use.browser import Browser
+from os_computer_use.browser_simple import Browser
 from os_computer_use.sandbox_agent import SandboxAgent
 from os_computer_use.logging import Logger
 import asyncio

os_computer_use/browser_simple.py

@@ -0,0 +1,80 @@
+import time
+import threading
+from multiprocessing import Process, Queue
+import webbrowser
+import subprocess
+import os
+
+
+class Browser:
+    def __init__(self):
+        self.width = 1024
+        self.height = 768
+        self.window_frame_height = 29  # Additional px for window border
+        self.command_queue = Queue()
+        self.webview_process = None
+        self.is_running = False
+
+    def open(self, url, width=None, height=None):
+        """
+        Open a browser window with the given URL
+
+        Args:
+            url (str): The URL to open
+            width (int, optional): Window width
+            height (int, optional): Window height
+        """
+        if self.is_running:
+            print("Browser window is already running")
+            return
+
+        self.width = width or self.width
+        self.height = height or self.height
+
+        print(f"URL: {url}")
+
+        # Try to open in system browser instead of pywebview
+        try:
+            # First try to open with the default browser
+            success = webbrowser.open(url)
+            if success:
+                print("Opened VNC client in system browser")
+                self.is_running = True
+            else:
+                print("System browser failed to open URL")
+                raise RuntimeError("webbrowser.open() returned False")
+        except Exception as e:
+            print(f"Failed to open in system browser: {e}")
+
+            # Fallback: try specific browsers
+            browsers = ['firefox', 'chromium-browser', 'google-chrome', 'chrome']
+            for browser in browsers:
+                try:
+                    subprocess.Popen([browser, url])
+                    print(f"Opened VNC client in {browser}")
+                    self.is_running = True
+                    break
+                except FileNotFoundError:
+                    continue
+                except Exception as e:
+                    print(f"Failed to open {browser}: {e}")
+                    continue
+
+            if not self.is_running:
+                print("Failed to open browser. Please manually navigate to:")
+                print(url)
+
+    def close(self):
+        """Close the browser window"""
+        if not self.is_running:
+            print("No browser window is running")
+            return
+
+        # Since we're using system browser, we can't programmatically close it
+        print("Please manually close the browser window")
+        self.is_running = False
+
+    @staticmethod
+    def _create_window(url, width, height, command_queue):
+        """This method is no longer used but kept for compatibility"""
+        pass

os_computer_use/config.py

@@ -6,16 +6,16 @@
 # grounding_model = providers.ShowUIProvider()
 
 # vision_model = providers.FireworksProvider("llama-3.2")
-# vision_model = providers.OpenAIProvider("gpt-4o")
+vision_model = providers.OpenAIProvider("gpt-4o")
 # vision_model = providers.AnthropicProvider("claude-3.5-sonnet")
 # vision_model = providers.MoonshotProvider("moonshot-v1-vision")
 # vision_model = providers.MistralProvider("pixtral")
 #vision_model = providers.GroqProvider("llama-3.2")
-vision_model = providers.OpenRouterProvider("qwen-2.5-vl")
+# vision_model = providers.OpenRouterProvider("qwen-2.5-vl")
 
 # action_model = providers.FireworksProvider("llama-3.3")
-# action_model = providers.OpenAIProvider("gpt-4o")
+action_model = providers.OpenAIProvider("gpt-4o")
 # action_model = providers.AnthropicProvider("claude-3.5-sonnet")
 # vision_model = providers.MoonshotProvider("moonshot-v1-vision")
 # action_model = providers.MistralProvider("mistral")
-action_model = providers.GroqProvider("llama-3.3")
+# action_model = providers.GroqProvider("llama-3.3")