When showing the FTS dialog pre populate the search box with the contents of the main calibre search box if the main search box contains a simple search. Fixes #2052460 [[Enhancement] Automatically search for what is typed in the main calibre Search field when opening the Full text dialog](https://bugs.launchpad.net/calibre/+bug/2052460)

src/calibre/gui2/actions/fts.py

@@ -25,6 +25,9 @@ class FullTextSearchAction(InterfaceAction):
         return self._dialog
 
     def show_fts(self):
+        text = self.gui.search.text()
+        if text and ':' not in text:
+            self.dialog.set_search_text(text)
         self.dialog.show()
         self.dialog.raise_()
 

src/calibre/gui2/fts/dialog.py

@@ -118,6 +118,9 @@ class FTSDialog(Dialog):
     def clear_search_history(self):
         self.results_panel.clear_history()
 
+    def set_search_text(self, text):
+        self.results_panel.set_search_text(text)
+
 
 if __name__ == '__main__':
     from calibre.gui2 import Application

src/calibre/gui2/fts/search.py

@@ -519,6 +519,9 @@ class SearchInputPanel(QWidget):
     def clear_history(self):
         self.search_box.clear_history()
 
+    def set_search_text(self, text):
+        self.search_box.setText(text)
+
     def start(self):
         self.pi.start()
 
@@ -813,6 +816,9 @@ class ResultsPanel(QWidget):
     def clear_history(self):
         self.sip.clear_history()
 
+    def set_search_text(self, text):
+        self.sip.set_search_text(text)
+
     def remove_book_from_results(self, book_id):
         self.results_view.m.remove_book(book_id)