Feat: Use option enabled_methods for Telescope

And fix a bug in Telescope when there is no selection.

lua/telescope/_extensions/textcase.lua

@@ -1,4 +1,5 @@
 local plugin = require("textcase.plugin.plugin")
+local presets = require("textcase.plugin.presets")
 local constants = require("textcase.shared.constants")
 local api = require("textcase").api
 local actions = require("telescope.actions")
@@ -8,6 +9,9 @@ local function invoke_replacement(prompt_bufnr)
   return function()
     actions.close(prompt_bufnr)
     local selection = action_state.get_selected_entry()
+    if not selection then
+      return
+    end
     local change = selection.value
     if type(change) ~= "table" then
       return
@@ -40,11 +44,13 @@ local function Create_resulting_cases(prefix_text, conversion_type)
     api.to_title_case,
     api.to_path_case,
   }) do
-    table.insert(results, {
-      display = prefix_text .. method.desc,
-      method_name = method.method_name,
-      type = conversion_type,
-    })
+    if presets.options.enabled_methods_set[method.method_name] then
+      table.insert(results, {
+        display = prefix_text .. method.desc,
+        method_name = method.method_name,
+        type = conversion_type,
+      })
+    end
   end
 
   return results

lua/textcase/plugin/presets.lua

@@ -70,7 +70,8 @@ M.Initialize = function()
   plugin.register_replace_command("Subs", replace_command_methods)
 end
 
-M.enabled_methods_set = {}
+-- Set all methods as default in case the setup function is not called.
+M.enabled_methods_set = all_methods
 
 M.setup = function(opts)
   M.options.prefix = opts and opts.prefix or "ga"

tests/textcase/plugin/options/enabled_methods_spec.lua

@@ -1,7 +1,7 @@
 local textcase = require("textcase")
 local test_helpers = require("tests.test_helpers")
 
-describe("plugin options default_keymappings=false", function()
+describe("plugin options enabled_methods=...", function()
   before_each(function()
     textcase.setup({
       enabled_methods = { "to_snake_case" },

tests/textcase/telescope/options/enabled_methods_spec.lua

@@ -0,0 +1,38 @@
+local feature_flags = require("feature_flags")
+if not feature_flags.is_feature_available("telescope") then
+  return
+end
+
+local textcase = require("textcase")
+local test_helpers = require("tests.test_helpers")
+
+describe("Telescope options enabled_methods=...", function()
+  before_each(function()
+    textcase.setup({
+      enabled_methods = { "to_snake_case" },
+    })
+    require("telescope").load_extension("textcase")
+
+    local buf = vim.api.nvim_create_buf(false, true)
+    vim.api.nvim_command("buffer " .. buf)
+    vim.api.nvim_buf_set_lines(0, 0, -1, true, { "LoremIpsum" })
+  end)
+
+  it("should not register other text-case methods in Telescope", function()
+    local query = "to lower case"
+    test_helpers.execute_keys("<CMD>TextCaseOpenTelescopeQuickChange<CR>")
+    test_helpers.execute_keys("i" .. query, "xmt")
+    vim.wait(50, function() end)
+    test_helpers.execute_keys("<CR>i")
+    assert.are.same({ "LoremIpsum" }, test_helpers.get_buf_lines())
+  end)
+
+  it("should still register the enabled text-case methods in Telescope", function()
+    local query = "snk" -- to_snake_case
+    test_helpers.execute_keys("<CMD>TextCaseOpenTelescopeQuickChange<CR>")
+    test_helpers.execute_keys("i" .. query, "xmt")
+    vim.wait(50, function() end)
+    test_helpers.execute_keys("<CR>i")
+    assert.are.same({ "lorem_ipsum" }, test_helpers.get_buf_lines())
+  end)
+end)