feat!: Implements default keybindings for all actions.

This is a breaking change to the way the plugin is configured. If users are using the old configuration the plugin will warn them which fields have been removed in their configuration. Old keybindings can be found here: https://github.com/harrisoncramer/gitlab.nvim/pull/340#issuecomment-2282756924 (#331)

feat: Customize discussion tree chevrons (#339)

lua/gitlab/reviewer/init.lua

@@ -276,4 +276,144 @@ M.set_callback_for_reviewer_enter = function(callback)
   })
 end
 
+---Create the line-wise visual selection in the range of the motion and execute the gitlab.nvim API
+---function. After that, restore the cursor position and the original operatorfunc.
+---@param callback string Name of the gitlab.nvim API function to call
+M.execute_callback = function(callback)
+  return function()
+    vim.api.nvim_cmd({ cmd = "normal", bang = true, args = { "'[V']" } }, {})
+    vim.api.nvim_cmd(
+      { cmd = "lua", args = { ("require'gitlab'.%s()"):format(callback) }, mods = { lockmarks = true } },
+      {}
+    )
+    vim.api.nvim_win_set_cursor(M.old_winnr, M.old_cursor_position)
+    vim.opt.operatorfunc = M.old_opfunc
+  end
+end
+
+---Set the operatorfunc that will work on the lines defined by the motion that follows after the
+---operator mapping, and enter the operator-pending mode.
+---@param cb string Name of the gitlab.nvim API function to call, e.g., "create_multiline_comment".
+local function execute_operatorfunc(cb)
+  M.old_opfunc = vim.opt.operatorfunc
+  M.old_winnr = vim.api.nvim_get_current_win()
+  M.old_cursor_position = vim.api.nvim_win_get_cursor(M.old_winnr)
+  vim.opt.operatorfunc = ("v:lua.require'gitlab.reviewer'.execute_callback'%s'"):format(cb)
+  vim.api.nvim_feedkeys("g@", "n", false)
+end
+
+---Set keymaps for creating comments, suggestions and for jumping to discussion tree.
+---@param bufnr integer Number of the buffer for which the keybindings will be created.
+---@param keymaps table The settings keymaps table.
+local set_keymaps = function(bufnr, keymaps)
+  -- Set mappings for creating comments
+  if keymaps.reviewer.create_comment ~= false then
+    vim.keymap.set(
+      "o",
+      keymaps.reviewer.create_comment,
+      "$",
+      { buffer = bufnr, desc = "Create comment for current line", nowait = keymaps.reviewer.create_comment_nowait }
+    )
+    vim.keymap.set(
+      "n",
+      keymaps.reviewer.create_comment,
+      function()
+        execute_operatorfunc("create_multiline_comment")
+      end,
+      { buffer = bufnr, desc = "Create comment for range of motion", nowait = keymaps.reviewer.create_comment_nowait }
+    )
+    vim.keymap.set("v", keymaps.reviewer.create_comment, function()
+      require("gitlab").create_multiline_comment()
+    end, {
+      buffer = bufnr,
+      desc = "Create comment for selected text",
+      nowait = keymaps.reviewer.create_comment_nowait,
+    })
+  end
+
+  -- Set mappings for creating suggestions
+  if keymaps.reviewer.create_suggestion ~= false then
+    vim.keymap.set("o", keymaps.reviewer.create_suggestion, "$", {
+      buffer = bufnr,
+      desc = "Create suggestion for current line",
+      nowait = keymaps.reviewer.create_suggestion_nowait,
+    })
+    vim.keymap.set("n", keymaps.reviewer.create_suggestion, function()
+      execute_operatorfunc("create_comment_suggestion")
+    end, {
+      buffer = bufnr,
+      desc = "Create suggestion for range of motion",
+      nowait = keymaps.reviewer.create_suggestion_nowait,
+    })
+    vim.keymap.set("v", keymaps.reviewer.create_suggestion, function()
+      require("gitlab").create_comment_suggestion()
+    end, {
+      buffer = bufnr,
+      desc = "Create suggestion for selected text",
+      nowait = keymaps.reviewer.create_suggestion_nowait,
+    })
+  end
+
+  -- Set mapping for moving to discussion tree
+  if keymaps.reviewer.move_to_discussion_tree ~= false then
+    vim.keymap.set("n", keymaps.reviewer.move_to_discussion_tree, function()
+      require("gitlab").move_to_discussion_tree_from_diagnostic()
+    end, { buffer = bufnr, desc = "Move to discussion", nowait = keymaps.reviewer.move_to_discussion_tree_nowait })
+  end
+end
+
+--- Sets up keymaps for both buffers in the reviewer.
+M.set_reviewer_keymaps = function()
+  -- Require keymaps only after user settings have been merged with defaults
+  local keymaps = require("gitlab.state").settings.keymaps
+  if keymaps.disable_all or keymaps.reviewer.disable_all then
+    return
+  end
+
+  local view = diffview_lib.get_current_view()
+  local a = view.cur_layout.a.file.bufnr
+  local b = view.cur_layout.b.file.bufnr
+  if a ~= nil and vim.api.nvim_buf_is_loaded(a) then
+    set_keymaps(a, keymaps)
+  end
+  if b ~= nil and vim.api.nvim_buf_is_loaded(b) then
+    set_keymaps(b, keymaps)
+  end
+end
+
+---Delete keymaps from reviewer buffers.
+---@param bufnr integer Number of the buffer from which the keybindings will be removed.
+---@param keymaps table The settings keymaps table.
+local del_keymaps = function(bufnr, keymaps)
+  for _, func in ipairs({ "create_comment", "create_suggestion" }) do
+    if keymaps.reviewer[func] ~= false then
+      for _, mode in ipairs({ "n", "o", "v" }) do
+        pcall(vim.api.nvim_buf_del_keymap, bufnr, mode, keymaps.reviewer[func])
+      end
+    end
+  end
+  if keymaps.reviewer.move_to_discussion_tree ~= false then
+    pcall(vim.api.nvim_buf_del_keymap, bufnr, "n", keymaps.reviewer.move_to_discussion_tree)
+  end
+end
+
+--- Deletes keymaps from both buffers in the reviewer.
+M.del_reviewer_keymaps = function()
+  -- Require keymaps only after user settings have been merged with defaults
+  local keymaps = require("gitlab.state").settings.keymaps
+  if keymaps.disable_all or keymaps.reviewer.disable_all then
+    return
+  end
+
+  local view = diffview_lib.get_current_view()
+  local a = view.cur_layout.a.file.bufnr
+  local b = view.cur_layout.b.file.bufnr
+  if a ~= nil and vim.api.nvim_buf_is_loaded(a) then
+    del_keymaps(a, keymaps)
+  end
+  if b ~= nil and vim.api.nvim_buf_is_loaded(b) then
+    del_keymaps(b, keymaps)
+  end
+end
+
 return M