Add. Code snippet plugin

snippets.lua

@@ -0,0 +1,95 @@
+local HotKeys        = package_require 'hotkeys.manager'
+local SnippetManager = package_require 'snippets.manager'
+
+local manager = SnippetManager:new()
+
+local Package = {
+  name = "Code snippets",
+  description = [[
+  Code based on Mitchell Foral' scite-tools pacakage.
+]],
+  author = "Alexey Melnichuk",
+  version = "0.0.1",
+  dependencies = "1.80",
+}
+
+local actions = {
+    insert     = function (editor) manager:insert(editor)                  end,
+    prev       = function (editor) manager:prev(editor)                    end,
+    cancel     = function (editor) manager:cancel_current(editor)          end,
+    cancel_all = function (editor) manager:cancel(editor)                  end,
+    list       = function (editor) manager:snippet_list(editor)            end,
+    show_scope = function (editor) manager:show_scope(editor)              end,
+    finish     = function (editor) manager:finish_current(editor)          end,
+    __test     = function (editor) SnippetManager.__self_test__(editor)    end,
+}
+
+local function OnTabActivation(self, editor, event)
+  local mod = event:GetModifiers()
+  if (mod ~= 0) and (mod ~= wx.wxMOD_SHIFT) then
+    return true
+  end
+
+  local key = event:GetKeyCode()
+  if key ~= wx.WXK_TAB then
+    return true
+  end
+
+  -- tab activation does not work when selected text
+  local selections = editor:GetSelections()
+  if selections > 1 then
+    return true
+  end
+
+  if not manager:has_active_snippet(editor) then
+    local selection_pos_start, selection_pos_end = editor:GetSelection()
+    if selection_pos_start ~= selection_pos_end then
+      return true
+    end
+  end
+
+  if mod == wx.wxMOD_SHIFT then
+    if not manager:has_active_snippet(editor) then
+      return true
+    end
+    manager:prev(editor)
+    return false
+  end
+
+  if manager:insert(editor) then
+    return false
+  end
+
+  return true
+end
+
+Package.onRegister = function(package)
+  local config = manager:load_config(package:GetConfig())
+
+  for key, handler in pairs(config.settings.keys) do
+    handler = assert(actions[handler], 'Unsupported action: ' .. tostring(handler))
+    HotKeys:add(package, key, handler)
+  end
+
+  for _, key in ipairs(config:get_key_activators()) do
+    HotKeys:add(package, key, function(editor) manager:insert(editor, key) end)
+  end
+
+  if config.settings.tab_activation then
+    Package.onEditorKeyDown = OnTabActivation
+  end
+end
+
+Package.onUnRegister = function(package)
+  HotKeys:close_package(package)
+end
+
+Package.onEditorClose = function(_, editor)
+  manager:release(editor)
+end
+
+Package.onEditorLoad = function(_, editor)
+  manager:cancel(editor)
+end
+
+return Package