working, needs few improvement

MarkdownLivePreview.py

@@ -9,45 +9,59 @@ from .MLPApi import *
 from .setting_names import *
 from .functions import *
 
+class NewMarkdownLivePreviewCommand(sublime_plugin.ApplicationCommand):
+
+    def run(self):
+
+        """Inspired by the edit_settings command"""
+
+        current_view = sublime.active_window().active_view()
+        file_name = current_view.file_name()
+        current_view.close()
+        if file_name is None:
+            return sublime.error_message('Not supporting unsaved file for now')
+
+        sublime.run_command('new_window')
+        self.window = sublime.active_window()
+        self.window.settings().set(PREVIEW_WINDOW, True)
+        self.window.run_command('set_layout', {
+            'cols': [0.0, 0.5, 1.0],
+            'rows': [0.0, 1.0],
+            'cells': [[0, 0, 1, 1], [1, 0, 2, 1]]
+        })
+        self.window.focus_group(1)
+        preview = create_preview(self.window, current_view)
+        
+        self.window.focus_group(0)
+        md_view = self.window.open_file(file_name)
+        mdsettings = md_view.settings()
+
+
+        mdsettings.set(PREVIEW_ENABLED, True)
+        mdsettings.set(PREVIEW_ID, preview.id())
+
+    def is_enabled(self):
+        return is_markdown_view(sublime.active_window().active_view())
+
 class MarkdownLivePreviewListener(sublime_plugin.EventListener):
-
     def on_modified(self, view):
-        if not is_markdown_view(view):
+        if not is_markdown_view(view): # faster than getting the settings
             return
-
         vsettings = view.settings()
-        if vsettings.get(PREVIEW_ENABLED):
-            id = vsettings.get(PREVIEW_ID)
-            preview = get_view_from_id(view.window(), id)
-            if id is None or preview is None:
-                preview = create_preview(view)
-                sublime.set_timeout_async(lambda: show_html(view, preview), 1000)
-            else:
-                show_html(view, preview)
-
+        if not vsettings.get(PREVIEW_ENABLED):
             return
+        id = vsettings.get(PREVIEW_ID)
+        if id is None:
+            raise ValueError('The preview id is None')
+        preview = get_view_from_id(view.window(), id)
+        if preview is None:
+            raise ValueError('The preview is None (id: {})'.format(id))
 
-    def on_activated(self, view):
-        # if view is md_view and has no preview
-        # -> create preview
-        window = view.window()
-        vsettings = view.settings()
-        if vsettings.get(PREVIEW_ENABLED):
-            id = vsettings.get(PREVIEW_ID)
-            preview = get_view_from_id(window, id)
-            if id is None or preview is None:
-                preview = create_preview(view)
-                sublime.set_timeout(lambda: show_html(view, preview), 1000)
-            else:
-                show_html(view, preview)
-            return
+        show_html(view, preview)
 
-        # if view is preview
-        # -> do nothing
-        if vsettings.get(IS_PREVIEW):
-            return
-        # if view is not the md_view or the preview
-        # remove preview if any
-        for view, settings in find_preview(window):
-            settings.set(IS_HIDDEN, True)
-            view.close()
+    def on_window_command(self, window, command, args):
+        if command == 'close' and window.settings().get(PREVIEW_WINDOW):
+            return 'close_window', {}
+
+    def on_load_async(self, view):
+        self.on_modified(view)