Implemented: config file, default open/close state, default split ratio, toolbar icon

src/__init__.py

@@ -6,6 +6,7 @@ from aqt.utils import *
 from aqt.theme import theme_manager
 from aqt.webview import AnkiWebView
 
+config = mw.addonManager.getConfig(__name__)
 
 class EditorPreview(object):
     js=[
@@ -37,6 +38,9 @@ class EditorPreview(object):
             context=ed,
         )
 
+        if not config['showPreviewAutomatically']:
+            ed.webview.hide()
+
         self._inject_splitter(ed)
         gui_hooks.editor_did_fire_typing_timer.append(lambda o: self.onedit_hook(ed, o))
         gui_hooks.editor_did_load_note.append(lambda o: None if o != ed else self.editor_note_hook(o))
@@ -49,9 +53,10 @@ class EditorPreview(object):
         layout.removeWidget(editor.web)
         split.addWidget(editor.web)
         split.addWidget(editor.webview)
-        split.setStretchFactor(0, 0)
-        split.setStretchFactor(1, 1)
-        split.setStretchFactor(2, 1)
+        splitRatio = config['splitRatio']
+        upperR, lowerR = [int(r) for r in splitRatio.split(":")]
+        split.setStretchFactor(0, upperR)
+        split.setStretchFactor(1, lowerR)
         layout.insertWidget(web_index, split)
 
 
@@ -59,7 +64,9 @@ class EditorPreview(object):
         self.onedit_hook(editor, editor.note)
 
     def editor_init_button_hook(self, buttons, editor):
-        b = editor.addButton(icon=None, cmd="_editor_toggle_preview", label='P', tip='Toggle Live Preview',
+        addon_path = os.path.dirname(__file__)
+        icons_dir = os.path.join(addon_path, 'icons')
+        b = editor.addButton(icon=os.path.join(icons_dir, 'file.svg'), cmd="_editor_toggle_preview", tip='Toggle Live Preview',
                     func=lambda o=editor: self.onEditorPreviewButton(o), disables=False
              )
         buttons.append(b)

src/config.json

@@ -0,0 +1 @@
+{"showPreviewAutomatically": true, "splitRatio": "4:1"}

src/config.md

@@ -0,0 +1,6 @@
+### Config
+\- `showPreviewAutomatically` [boolean (true | false)]:<br/>
+&nbsp;&nbsp;&nbsp;Defines if the preview window should show up automatically as you enter the Editor (default: true)<br/><br/>
+\- `splitRatio` [int:int]:<br/>
+&nbsp;&nbsp;&nbsp;Defines the default split ratio of the main view and preview view (default: 4:1)
+<br/>

src/icons/file.svg

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 26.4.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Layer_2" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 16 16" style="enable-background:new 0 0 16 16;" xml:space="preserve">
+<style type="text/css">
+	.st0{stroke:#000000;stroke-width:0.5;stroke-miterlimit:10;}
+</style>
+<g>
+	<path class="st0" d="M8.7,14.1H2.2c-0.2,0-0.4-0.2-0.4-0.4V2.4c0-0.2,0.2-0.4,0.4-0.4h9.3c0.2,0,0.4,0.2,0.4,0.4v2.8
+		c0,0.2,0.2,0.4,0.4,0.4c0.2,0,0.4-0.2,0.4-0.4V2.4c0-0.7-0.6-1.3-1.3-1.3H2.2c-0.7,0-1.3,0.6-1.3,1.3v11.3c0,0.7,0.6,1.3,1.3,1.3
+		h6.5c0.2,0,0.4-0.2,0.4-0.4S9,14.1,8.7,14.1z"/>
+	<path class="st0" d="M15.4,14.2l-1.9-2c0.5-0.6,0.8-1.4,0.8-2.3c0-2-1.6-3.6-3.6-3.6S7.1,8,7.1,10s1.6,3.6,3.6,3.6
+		c0.8,0,1.6-0.3,2.2-0.7l1.9,2c0.1,0.1,0.2,0.1,0.3,0.1c0.1,0,0.2,0,0.3-0.1C15.6,14.7,15.6,14.4,15.4,14.2L15.4,14.2z M10.7,12.7
+		C9.2,12.7,8,11.5,8,10s1.2-2.7,2.7-2.7s2.7,1.2,2.7,2.7S12.2,12.7,10.7,12.7z M9.1,5.2c0-0.2-0.2-0.4-0.4-0.4H3.6
+		C3.4,4.8,3.2,5,3.2,5.2c0,0.2,0.2,0.4,0.4,0.4h5.1C9,5.6,9.1,5.4,9.1,5.2z M6.5,7.6c0-0.2-0.2-0.4-0.4-0.4H3.6
+		c-0.2,0-0.4,0.2-0.4,0.4S3.4,8,3.6,8h2.5C6.3,8,6.5,7.8,6.5,7.6z M3.6,9.6c-0.2,0-0.4,0.2-0.4,0.4c0,0.2,0.2,0.4,0.4,0.4h1.3
+		c0.2,0,0.4-0.2,0.4-0.4c0-0.2-0.2-0.4-0.4-0.4H3.6z"/>
+</g>
+</svg>