Add dark_mode and option eaf-browser-dark-mode.

app/browser/buffer.py

@@ -64,6 +64,15 @@ class AppBuffer(BrowserBuffer):
         except Exception:
             pass
 
+        self.buffer_widget.loadFinished.connect(self.adjust_dark_mode)
+
+    def adjust_dark_mode(self):
+        try:
+            if self.emacs_var_dict["eaf-browser-dark-mode"] == "true":
+                self.dark_mode()
+        except Exception:
+            pass
+
     def clear_history(self):
         if os.path.exists(self.history_log_file_path):
             os.remove(self.history_log_file_path)

core/browser.py

@@ -65,6 +65,7 @@ class BrowserView(QWebEngineView):
         self.set_focus_text_raw = self.read_js_content("set_focus_text.js")
         self.clear_focus_js = self.read_js_content("clear_focus.js")
         self.select_input_text_js = self.read_js_content("select_input_text.js")
+        self.dark_mode_js = self.read_js_content("dark_mode.js")
 
     def read_js_content(self, js_file):
         return open(os.path.join(os.path.dirname(__file__), "js", js_file), "r").read()
@@ -311,6 +312,9 @@ class BrowserView(QWebEngineView):
     def clear_focus(self):
         self.execute_js(self.clear_focus_js)
 
+    def dark_mode(self):
+        self.execute_js(self.dark_mode_js)
+
 class BrowserPage(QWebEnginePage):
     def __init__(self):
         QWebEnginePage.__init__(self)
@@ -676,3 +680,6 @@ class BrowserBuffer(Buffer):
 
     def eval_js_file(self):
         self.send_input_message("Eval JS: ", "eval_js_file", "file")
+
+    def dark_mode(self):
+        self.buffer_widget.dark_mode()

eaf.el

@@ -220,6 +220,7 @@ It must defined at `eaf-browser-search-engines'."
     (eaf-browser-remember-history . "true")
     (eaf-browser-default-zoom . "1.0")
     (eaf-browser-blank-page-url . "https://www.google.com")
+    (eaf-browser-dark-mode . "false")
     )
   "The alist storing user-defined variables that's shared with EAF Python side.