Merge pull request #23 from gugutu/master

The previous implementation may encounter issues in specific scenarios and could potentially become invalid after Anki updates. Now, the approach has been modified to check whether the note content has been modified, which is a simpler and more understandable method.

.drone.yml

@@ -0,0 +1,31 @@
+---
+kind: pipeline
+type: docker
+name: Build Anki Plugin
+
+trigger:
+  event:
+    include:
+      - tag
+
+steps:
+  - name: Build Archive
+    image: debian:bookworm
+    pull: always
+    commands:
+      - apt-get update && apt-get install -y zip
+      - ./build.sh
+
+  - name: Upload Artifact to Gitea
+    depends_on:
+      - Build Archive
+    image: plugins/gitea-release
+    settings:
+      api_key:
+        from_secret: gitea_api_token
+      checksum: sha256
+      base_url: https://git.tobiasmanske.de
+      files: editor-preview.ankiaddon
+
+image_pull_secrets:
+  - registry

.gitignore

@@ -117,6 +117,7 @@ venv/
 ENV/
 env.bak/
 venv.bak/
+.idea
 
 # Spyder project settings
 .spyderproject

src/__init__.py

@@ -1,4 +1,5 @@
 import json
+from typing import Set
 
 from anki import hooks, buildinfo
 from aqt import editor, gui_hooks, mw
@@ -8,8 +9,10 @@ from aqt.webview import AnkiWebView
 
 config = mw.addonManager.getConfig(__name__)
 
+
 class EditorPreview(object):
-    js=[
+    editors: Set[editor.Editor] = set()
+    js = [
         "js/mathjax.js",
         "js/vendor/mathjax/tex-chtml.js",
         "js/reviewer.js",
@@ -18,7 +21,18 @@ class EditorPreview(object):
     def __init__(self):
         gui_hooks.editor_did_init.append(self.editor_init_hook)
         gui_hooks.editor_did_init_buttons.append(self.editor_init_button_hook)
-        if int(buildinfo.version.split(".")[2]) < 45: # < 2.1.45
+        gui_hooks.editor_did_load_note.append(self.editor_note_hook)
+        gui_hooks.editor_did_fire_typing_timer.append(self.onedit_hook)
+        buildversion = buildinfo.version.split(".")
+
+        # Anki changed their versioning scheme in 2023 to year.month(.patch), causing things to explode here.
+        if int(buildversion[0]) >= 24 or (int(buildversion[0]) == 23 and int(buildversion[1]) == 12 and 2 < len(buildversion) and int(buildversion[2])) >= 1:  # >= 23.12.1
+            self.js = [
+                "js/mathjax.js",
+                "js/vendor/mathjax/tex-chtml-full.js",
+                "js/reviewer.js",
+            ]
+        elif int(buildversion[0]) < 23 and int(buildversion[2]) < 45:  # < 2.1.45
             self.js = [
                 "js/vendor/jquery.min.js",
                 "js/vendor/css_browser_selector.min.js",
@@ -27,56 +41,95 @@ class EditorPreview(object):
                 "js/reviewer.js",
             ]
 
-
     def editor_init_hook(self, ed: editor.Editor):
-        ed.webview = AnkiWebView(title="editor_preview")
+        ed.editor_preview = AnkiWebView(title="editor_preview")
         # This is taken out of clayout.py
-        ed.webview.stdHtml(
+        ed.editor_preview.stdHtml(
             ed.mw.reviewer.revHtml(),
             css=["css/reviewer.css"],
             js=self.js,
             context=ed,
         )
 
-        if not config['showPreviewAutomatically']:
-            ed.webview.hide()
+        if not config["showPreviewAutomatically"]:
+            ed.editor_preview.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))
+
+    def _get_splitter(self, editor):
+        mainR, editorR = [int(r) * 10000 for r in config["splitRatio"].split(":")]
+        location = config["location"]
+        split = QSplitter()
+        if location == "above":
+            split.setOrientation(Qt.Orientation.Vertical)
+            split.addWidget(editor.editor_preview)
+            split.addWidget(editor.wrapped_web)
+            sizes = [editorR, mainR]
+        elif location == "below":
+            split.setOrientation(Qt.Orientation.Vertical)
+            split.addWidget(editor.wrapped_web)
+            split.addWidget(editor.editor_preview)
+            sizes = [mainR, editorR]
+        elif location == "left":
+            split.setOrientation(Qt.Orientation.Horizontal)
+            split.addWidget(editor.editor_preview)
+            split.addWidget(editor.wrapped_web)
+            sizes = [editorR, mainR]
+        elif location == "right":
+            split.setOrientation(Qt.Orientation.Horizontal)
+            split.addWidget(editor.wrapped_web)
+            split.addWidget(editor.editor_preview)
+            sizes = [mainR, editorR]
+        else:
+            raise ValueError("Invalid value for config key location")
+
+        split.setSizes(sizes)
+        return split
 
     def _inject_splitter(self, editor: editor.Editor):
-        layout = editor.outerLayout
-        split = QSplitter()
-        split.setOrientation(Qt.Vertical)
+        layout = editor.web.parentWidget().layout()
+        if layout is None:
+            layout = QVBoxLayout()
+            editor.web.parentWidget().setLayout(layout)
         web_index = layout.indexOf(editor.web)
         layout.removeWidget(editor.web)
-        split.addWidget(editor.web)
-        split.addWidget(editor.webview)
-        splitRatio = config['splitRatio']
-        upperR, lowerR = [int(r) for r in splitRatio.split(":")]
-        split.setStretchFactor(0, upperR)
-        split.setStretchFactor(1, lowerR)
+
+        # Wrap a widget on the outer layer of the webview
+        # So that other plugins can continue to modify the layout
+        editor.wrapped_web = QWidget()
+        wrapLayout = QHBoxLayout()
+        editor.wrapped_web.setLayout(wrapLayout)
+        wrapLayout.addWidget(editor.web)
+
+        split = self._get_splitter(editor)
         layout.insertWidget(web_index, split)
 
-
     def editor_note_hook(self, editor):
-        self.onedit_hook(editor, editor.note)
+        self.editors = set(filter(lambda it: it.note is not None, self.editors))
+        self.editors.add(editor)
+        # The initial loading of notes will also trigger an editing event
+        # which will cause a second refresh
+        # Caching the content of notes here will be used to determine if the content has changed
+        editor.cached_fields = list(editor.note.fields)
+        self.refresh(editor)
 
     def editor_init_button_hook(self, buttons, editor):
         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
+        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)
 
     def onEditorPreviewButton(self, origin: editor.Editor):
-        if origin.webview.isHidden():
-            origin.webview.show()
+        if origin.editor_preview.isHidden():
+            origin.editor_preview.show()
         else:
-            origin.webview.hide()
-
+            origin.editor_preview.hide()
 
     def _obtainCardText(self, note):
         c = note.ephemeral_card()
@@ -87,8 +140,13 @@ class EditorPreview(object):
 
         return f"_showAnswer({json.dumps(a)},'{bodyclass}');"
 
-    def onedit_hook(self, editor, origin):
-        if editor.note == origin:
-            editor.webview.eval(self._obtainCardText(editor.note))
+    def onedit_hook(self, note):
+        for editor in self.editors:
+            if editor.note == note and editor.cached_fields != note.fields:
+                editor.cached_fields = list(note.fields)
+                self.refresh(editor)
+
+    def refresh(self, editor):
+        editor.editor_preview.eval(self._obtainCardText(editor.note))
 
 eprev = EditorPreview()

src/config.json

@@ -1 +1,5 @@
-{"showPreviewAutomatically": true, "splitRatio": "4:1"}
+{
+  "showPreviewAutomatically": true,
+  "splitRatio": "1:1",
+  "location": "below"
+}

src/config.md

@@ -2,5 +2,8 @@
 \- `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)
+&nbsp;&nbsp;&nbsp;Defines the default split ratio of the main view and preview view (default: 1:1)<br/>
+<br/>
+\- `location` [string (above | below | left | right)]:<br/>
+&nbsp;&nbsp;&nbsp;Defines where to render the preview (default: below)
 <br/>