Add simplified legacy exporter hooks

Allows add-ons to be notified of exports when legacy handlers are enabled, without the need for monkey-patches.

qt/aqt/exporting.py

@@ -196,6 +196,7 @@ class ExportDialog(QDialog):
                 else:
                     self.on_export_finished()
 
+            gui_hooks.legacy_exporter_will_export(self.exporter.ext)
             if self.isVerbatim:
                 gui_hooks.collection_will_temporarily_close(self.mw.col)
             self.mw.progress.start()
@@ -213,6 +214,7 @@ class ExportDialog(QDialog):
                 msg = tr.exporting_note_exported(count=self.exporter.count)
             else:
                 msg = tr.exporting_card_exported(count=self.exporter.count)
+        gui_hooks.legacy_exporter_did_export(self.exporter.ext)
         tooltip(msg, period=3000)
         QDialog.reject(self)
 

qt/tools/genhooks_gui.py

@@ -816,6 +816,8 @@ gui_hooks.webview_did_inject_style_into_page.append(mytest)
 
         `output` provides access to the unused/missing file lists and the text output that will be shown in the Check Media screen.""",
     ),
+    # Importing/exporting data
+    ###################
     Hook(
         name="exporter_will_export",
         args=[
@@ -844,6 +846,16 @@ gui_hooks.webview_did_inject_style_into_page.append(mytest)
         ],
         doc="""Called after collection and deck exports.""",
     ),
+    Hook(
+        name="legacy_exporter_will_export",
+        args=["file_extension: str"],
+        doc="""Called before collection and deck exports performed by legacy exporters.""",
+    ),
+    Hook(
+        name="legacy_exporter_did_export",
+        args=["file_extension: str"],
+        doc="""Called after collection and deck exports performed by legacy exporters.""",
+    ),
     # Dialog Manager
     ###################
     Hook(