1 files changed, 88 insertions, 0 deletions
diff --git a/lua/blink/cmp/completion/init.lua b/lua/blink/cmp/completion/init.lua
new file mode 100644
index 0000000..49c6fc2
--- /dev/null
+++ b/lua/blink/cmp/completion/init.lua
@@ -0,0 +1,88 @@
+local config = require('blink.cmp.config')
+local completion = {}
+
+function completion.setup()
+  -- trigger controls when to show the window and the current context for caching
+  local trigger = require('blink.cmp.completion.trigger')
+  trigger.activate()
+
+  -- sources fetch completion items and documentation
+  local sources = require('blink.cmp.sources.lib')
+
+  -- manages the completion list state:
+  --   fuzzy matching items
+  --   when to show/hide the windows
+  --   selection
+  --   accepting and previewing items
+  local list = require('blink.cmp.completion.list')
+
+  -- trigger -> sources: request completion items from the sources on show
+  trigger.show_emitter:on(function(event) sources.request_completions(event.context) end)
+  trigger.hide_emitter:on(function()
+    sources.cancel_completions()
+    list.hide()
+  end)
+
+  -- sources -> list
+  sources.completions_emitter:on(function(event)
+    -- schedule for later to avoid adding 0.5-4ms to insertion latency
+    vim.schedule(function()
+      -- since this was performed asynchronously, we check if the context has changed
+      if trigger.context == nil or event.context.id ~= trigger.context.id then return end
+      -- don't show the list if prefetching results
+      if event.context.trigger.kind == 'prefetch' then return end
+
+      -- don't show if all the sources that defined the trigger character returned no items
+      if event.context.trigger.character ~= nil then
+        local triggering_source_returned_items = false
+        for _, source in pairs(event.context.providers) do
+          local trigger_characters = sources.get_provider_by_id(source):get_trigger_characters()
+          if
+            event.items[source]
+            and #event.items[source] > 0
+            and vim.tbl_contains(trigger_characters, trigger.context.trigger.character)
+          then
+            triggering_source_returned_items = true
+            break
+          end
+        end
+
+        if not triggering_source_returned_items then return list.hide() end
+      end
+
+      list.show(event.context, event.items)
+    end)
+  end)
+
+  --- list -> windows: ghost text and completion menu
+  -- setup completion menu
+  if config.completion.menu.enabled then
+    list.show_emitter:on(
+      function(event) require('blink.cmp.completion.windows.menu').open_with_items(event.context, event.items) end
+    )
+    list.hide_emitter:on(function() require('blink.cmp.completion.windows.menu').close() end)
+    list.select_emitter:on(function(event)
+      require('blink.cmp.completion.windows.menu').set_selected_item_idx(event.idx)
+      require('blink.cmp.completion.windows.documentation').auto_show_item(event.context, event.item)
+    end)
+  end
+
+  -- setup ghost text
+  if config.completion.ghost_text.enabled then
+    list.select_emitter:on(
+      function(event) require('blink.cmp.completion.windows.ghost_text').show_preview(event.item) end
+    )
+    list.hide_emitter:on(function() require('blink.cmp.completion.windows.ghost_text').clear_preview() end)
+  end
+
+  -- run 'resolve' on the item ahead of time to avoid delays
+  -- when accepting the item or showing documentation
+  list.select_emitter:on(function(event)
+    -- when selection.preselect == false, we still want to prefetch the first item
+    local item = event.item or list.items[1]
+    if item == nil then return end
+    require('blink.cmp.completion.prefetch')(event.context, event.item)
+  end)
+end
+
+return completion