How to show the find and replace panel with a pre-populated search string? - sublimetext3

Question

I know that it is possible to show the Sublime Text "Find and Replace" panel using the show_panel command (either via a keybinding or a plugin), and control which arguments are enabled/disabled.
Example run from Sublime Console panel:
window.run_command('show_panel', { 'panel': 'replace', 'regex': True, 'case_sensitive': False, 'whole_word': False, 'in_selection': False, 'wrap': True, 'highlight': True, 'preserve_case': True })
What I would like to know, is: is there a way to pre-populate the Find What: and Replace With: values?
I found this forum post but it has no reply, and the unofficial documentation is of no help in this case.
I have tried:
'find_what': 'string'
'replace_with': 'string'
'find_history': 'string'
'replace_history': 'string'
'find_history': ['string']
'replace_history': ['string']
'find': 'string'
'replace': 'string'
EDIT: I have also tried:
characters
find_characters
look_for
search_for
find_regex
find_string
search_string
replacement
search_characters
and none of the above makes any difference - the panel is always pre-populated with the previous search and replace values, not what I pass in.
I am aware of the commands slurp_find_string and slurp_replace_string, which will take the current selection and update the Find What / Replace With values respectively, but I would like a way to do it without having to mess around with selections first - I just want to pass the values as arguments directly to the show_panel command.
Does anyone know what parameters/arguments can be used to control this?

Answer 1

You can run an insert command on the window just after you've run the show_panel command.
import sublime_plugin
class ShowPanelPrefilledCommand(sublime_plugin.WindowCommand):
def run(self, interactive=True):
self.window.run_command('show_panel', {
'panel': 'find_in_files',
'where': '<open folders>',
'whole_word': False,
'case_sensitive': False,
'preserve_case': False,
'regex': False,
'use_buffer': False,
'show_context': False,
})
self.window.run_command('insert', {'characters': 'hello'})
if not interactive:
self.window.run_command('find_all', {'close_panel': True})

Answer 2

I wanted to do the same thing for a key binding command that opens a Package Tool and uses the Find Search window. I ended up with something easy to customize and use for any command that just uses another key binding.
After I run my Package Tool, I just use this key binding to insert the text (which is a complicated regex in my case). For me on OSX, it's intuitively remembered as (insert 1) CMD+i, CMD+1
Open Sublime Text / Preferences / Key Bindings
Add this to the User - Default (OS).sublime-keymap
{ "keys": ["super+i", "super+1"], "command": "insert", "args": { "characters": "my-custom-insert-text1" } },
{ "keys": ["super+i", "super+2"], "command": "insert", "args": { "characters": "my-custom-insert-text2" } },
// etc..

Answer 3

This feature was added in Sublime Text build 4123 on 6 December 2021.
The show_panel command for the find and find in files panels can now take "pattern" and "replace_pattern" arguments.