feat: global view filters and easy toggling of just items of the curr…

…ent buffer

lua/trouble/config/actions.lua

@@ -46,6 +46,10 @@ local M = {
   toggle_refresh = function(self)
     self.opts.auto_refresh = not self.opts.auto_refresh
   end,
+
+  filter = function(self, ctx)
+    self:filter(ctx.opts.filter)
+  end,
   -- Show the help
   help = function(self)
     self:help()

lua/trouble/config/init.lua

@@ -80,6 +80,13 @@ local defaults = {
     zn = "fold_disable",
     zN = "fold_enable",
     zi = "fold_toggle_enable",
+    gb = { -- example of a custom action that toggles the active view filter
+      action = function(view)
+        view.state.filter_buffer = not view.state.filter_buffer
+        view:filter(view.state.filter_buffer and { buf = 0 } or nil)
+      end,
+      desc = "Toggle Current Buffer Filter",
+    },
   },
   ---@type table<string, trouble.Mode>
   modes = {

lua/trouble/view/init.lua

@@ -15,6 +15,7 @@ local Window = require("trouble.view.window")
 ---@field renderer trouble.Render
 ---@field first_update? boolean
 ---@field moving uv_timer_t
+---@field state table<string,any>
 ---@field private _main? trouble.Main
 local M = {}
 M.__index = M
@@ -32,6 +33,7 @@ function M.new(opts)
   local self = setmetatable({}, M)
   _idx = _idx + 1
   M._views[self] = _idx
+  self.state = {}
   self.opts = opts or {}
   self.first_update = true
   self.opts.win = self.opts.win or {}
@@ -99,6 +101,14 @@ function M.get(filter)
   return ret
 end
 
+---@param filter trouble.Filter
+function M:filter(filter)
+  for _, section in ipairs(self.sections) do
+    section.filter = filter
+  end
+  self:refresh()
+end
+
 function M:on_mount()
   vim.w[self.win.win].trouble = {
     mode = self.opts.mode,

lua/trouble/view/section.lua

@@ -14,6 +14,7 @@ local Util = require("trouble.util")
 ---@field items trouble.Item[]
 ---@field node? trouble.Node
 ---@field fetching boolean
+---@field filter? trouble.Filter
 ---@field on_refresh? fun(self: trouble.Section)
 ---@field on_update? fun(self: trouble.Section)
 local M = {}
@@ -65,6 +66,9 @@ function M:refresh()
     local ctx = { opts = self.opts, main = main }
     self.finder(function(items)
       items = Filter.filter(items, self.section.filter, ctx)
+      if self.filter then
+        items = Filter.filter(items, self.filter, ctx)
+      end
       items = Sort.sort(items, self.section.sort, ctx)
       self.items = items
       self.node = Tree.build(items, self.section)