New API, eaf-setq on the Emacs side, custom save camera directory

app/camera/buffer.py

@@ -46,7 +46,7 @@ class AppBuffer(Buffer):
         self.buffer_widget.camera.start()
 
     def take_photo(self):
-        self.buffer_widget.take_photo()
+        self.buffer_widget.take_photo(self.emacs_var_dict["eaf-camera-save-path"])
 
 class CameraWidget(QWidget):
 
@@ -83,11 +83,16 @@ class CameraWidget(QWidget):
         self.camera.setCaptureMode(QCamera.CaptureStillImage)
         self.camera.start()
 
-    def take_photo(self):
-        photo_path = os.path.join(str(Path.home()), "EAF_Camera_Photo_" + time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(int(time.time()))))
-
+    def take_photo(self, camera_save_path):
         image_capture = QCameraImageCapture(self.camera)
-        image_capture.capture(photo_path)
+        try:
+            save_path = str(Path(os.path.expanduser(camera_save_path)))
+            photo_path = os.path.join(save_path, "EAF_Camera_Photo_" + time.strftime("%Y-%m-%d_%H:%M:%S", time.localtime(int(time.time()))))
+            image_capture.capture(photo_path)
+        except:
+            save_path = str(Path(os.path.expanduser("~/Downloads")))
+            photo_path = os.path.join(save_path, "EAF_Camera_Photo_" + time.strftime("%Y-%m-%d_%H:%M:%S", time.localtime(int(time.time()))))
+            image_capture.capture(photo_path)
 
         self.message_to_emacs.emit("Save photo at: " + photo_path)
 

core/buffer.py

@@ -152,6 +152,7 @@ class Buffer(QGraphicsScene):
         self.progressbar_progress = 0
         self.progressbar_color = QColor(233, 129, 35, 255)
         self.progressbar_height = 2
+        self.emacs_var_dict = {}
 
     def drawForeground(self, painter, rect):
         if self.draw_progressbar:

eaf.el

@@ -7,7 +7,7 @@
 ;; Copyright (C) 2018, Andy Stewart, all rights reserved.
 ;; Created: 2018-06-15 14:10:12
 ;; Version: 0.3
-;; Last-Updated: Sat Nov 23 03:15:08 2019 (-0500)
+;; Last-Updated: Tue Nov 26 19:58:38 2019 (-0500)
 ;;           By: Mingde (Matthew) Zeng
 ;; URL: http://www.emacswiki.org/emacs/download/eaf.el
 ;; Keywords:
@@ -131,6 +131,11 @@
 
 (defvar eaf-http-proxy-port "")
 
+(defvar eaf-var-list '()
+  "The alist storing user-defined variables that's shared with EAF Python side.
+
+Use `eaf-setq' to modify this list.")
+
 (defvar eaf-find-alternate-file-in-dired nil
   "If non-nil, when calling `eaf-file-open-in-dired', EAF unrecognizable files will be opened
 by `dired-find-alternate-file'. Otherwise they will be opened normally with `dired-find-file'.")
@@ -539,6 +544,13 @@ Otherwise call send_key message to Python side."
         (eaf-call "execute_function" buffer-id (cdr function-name-value))
       (eaf-call "send_key" buffer-id key-desc))))
 
+(defun eaf-setq (sym val)
+  "Similar to `setq', but store SYM with VAL in the EAF Python side.
+
+Use it as (eaf-setq 'sym val)"
+  (when (symbol-name sym)
+    (map-put eaf-var-list sym val)))
+
 (defun eaf-focus-buffer (msg)
   (let* ((coordinate-list (split-string msg ","))
          (mouse-press-x (string-to-number (nth 0 coordinate-list)))
@@ -662,6 +674,16 @@ Otherwise call send_key message to Python side."
  "com.lazycat.eaf" "input_message"
  'eaf-input-message)
 
+(defun eaf-send-var-to-python ()
+  (message "Sending variables to Python side...")
+  (cl-loop for (sym . val) in eaf-var-list
+           do (eaf-call "store_emacs_var" (symbol-name sym) val)))
+
+(dbus-register-signal
+ :session "com.lazycat.eaf" "/com/lazycat/eaf"
+ "com.lazycat.eaf" "get_emacs_var"
+ 'eaf-send-var-to-python)
+
 (add-hook 'window-size-change-functions 'eaf-monitor-window-size-change)
 (add-hook 'window-configuration-change-hook #'eaf-monitor-configuration-change)
 (add-hook 'pre-command-hook #'eaf-monitor-key-event)
@@ -713,6 +735,7 @@ Otherwise call send_key message to Python side."
 (defun eaf-open-camera ()
   "Open EAF camera application."
   (interactive)
+  (eaf-setq 'eaf-camera-save-path "~/Downloads")
   (eaf-open "eaf-camera" "camera"))
 
 (defun eaf-open-terminal ()
@@ -764,9 +787,8 @@ When called interactively, URL accepts a file that can be opened by EAF."
            ;; Split window to show file and previewer.
            (eaf-split-preview-windows)
            (setq app-name "org-previewer"))))
-
-  (unless arguments
-    (setq arguments ""))
+  (unless arguments (setq arguments ""))
+  ;; Now that app-name should hopefully be set
   (if app-name
       ;; Open url with eaf application if app-name is not empty.
       (if (process-live-p eaf-process)

eaf.py

@@ -142,6 +142,9 @@ class EAF(dbus.service.Object):
         # Send message to emacs.
         app_buffer.input_message.connect(self.input_message)
 
+        # Get variables defined in emacs
+        self.get_emacs_var()
+
         # Handle buffer close request.
         app_buffer.close_buffer.connect(self.request_kill_buffer)
 
@@ -249,7 +252,13 @@ class EAF(dbus.service.Object):
             if buffer.buffer_id == buffer_id:
                 buffer.handle_input_message(callback_type, callback_result)
 
-    @dbus.service.signal("com.lazycat.eaf")
+    @dbus.service.method(EAF_DBUS_NAME, in_signature="ss", out_signature="")
+    def store_emacs_var(self, var_name, var_value):
+        for buffer in list(self.buffer_dict.values()):
+            buffer.emacs_var_dict[var_name] = var_value
+            # self.message_to_emacs("EAF Python: Storing " + var_name + " with " + buffer.emacs_var_dict[var_name])
+
+    @dbus.service.signal(EAF_DBUS_NAME)
     def focus_emacs_buffer(self, message):
         pass
 
@@ -285,6 +294,10 @@ class EAF(dbus.service.Object):
     def message_to_emacs(self, message):
         pass
 
+    @dbus.service.signal(EAF_DBUS_NAME)
+    def get_emacs_var(self):
+        pass
+
     def save_buffer_session(self, buf):
         # Create config file it not exist.
         if not os.path.exists(self.session_file_path):