1 files changed, 34 insertions, 0 deletions
diff --git a/mpv/scripts/file-browser/modules/apis/parse-state.lua b/mpv/scripts/file-browser/modules/apis/parse-state.lua
new file mode 100644
index 0000000..6db5658
--- /dev/null
+++ b/mpv/scripts/file-browser/modules/apis/parse-state.lua
@@ -0,0 +1,34 @@
+
+local msg = require 'mp.msg'
+
+local g = require 'modules.globals'
+
+---@class ParseStateAPI
+local parse_state_API = {}
+
+---A wrapper around coroutine.yield that aborts the coroutine if
+--the parse request was cancelled by the user.
+--the coroutine is
+---@async
+---@param self ParseState
+---@param ... any
+---@return unknown ...
+function parse_state_API:yield(...)
+    local co = coroutine.running()
+    local is_browser = co == g.state.co
+
+    local result = table.pack(coroutine.yield(...))
+    if is_browser and co ~= g.state.co then
+        msg.verbose("browser no longer waiting for list - aborting parse for", self.directory)
+        error(g.ABORT_ERROR)
+    end
+    return table.unpack(result, 1, result.n)
+end
+
+---Checks if the current coroutine is the one handling the browser's request.
+---@return boolean
+function parse_state_API:is_coroutine_current()
+    return coroutine.running() == g.state.co
+end
+
+return parse_state_API