From efedbae6639c9ee7eb06c9c2501b69be1b0986df Mon Sep 17 00:00:00 2001
From: AlexSol <faranheit0@gmail.com>
Date: Fri, 28 Jan 2022 20:08:54 +0200
Subject: [PATCH] Travel by contextMenu using keyboard

---
 data/core/contextmenu.lua    | 41 ++++++++++++++++++++++++++++++------
 data/plugins/contextmenu.lua | 22 ++++++++++++++++++-
 2 files changed, 56 insertions(+), 7 deletions(-)

diff --git a/data/core/contextmenu.lua b/data/core/contextmenu.lua
index 9db35bb3..4cb3e492 100644
--- a/data/core/contextmenu.lua
+++ b/data/core/contextmenu.lua
@@ -91,6 +91,7 @@ function ContextMenu:show(x, y)
 
     self.position.x, self.position.y = x, y
     self.show_context_menu = true
+    core.request_cursor("arrow")
     return true
   end
   return false
@@ -101,6 +102,7 @@ function ContextMenu:hide()
   self.items = nil
   self.selected = -1
   self.height = 0
+  core.request_cursor(core.active_view.cursor)
 end
 
 function ContextMenu:each_item()
@@ -126,9 +128,6 @@ function ContextMenu:on_mouse_moved(px, py)
       break
     end
   end
-  if self.selected >= 0 then
-    core.request_cursor("arrow")
-  end
   return true
 end
 
@@ -140,8 +139,38 @@ function ContextMenu:on_selected(item)
   end
 end
 
-function ContextMenu:on_mouse_pressed(button, x, y, clicks)
-  local selected = (self.items or {})[self.selected]
+local function change_value(value, change)
+  return value + change
+end
+
+function ContextMenu:focus_previous()
+  self.selected = (self.selected == -1 or self.selected == 1) and #self.items or change_value(self.selected, -1)
+  if self:get_item_selected() == DIVIDER then
+    self.selected = change_value(self.selected, -1)
+  end
+end
+
+function ContextMenu:focus_next()
+  self.selected = (self.selected == -1 or self.selected == #self.items) and 1 or change_value(self.selected, 1)
+  if self:get_item_selected() == DIVIDER then
+    self.selected = change_value(self.selected, 1)
+  end
+end
+
+function ContextMenu:get_item_selected()
+  return (self.items or {})[self.selected]
+end
+
+function ContextMenu:call_selected_item()
+    local selected = self:get_item_selected()
+    self:hide()
+    if selected then
+      self:on_selected(selected)
+    end
+end
+
+function ContextMenu:on_mouse_pressed(button, px, py, clicks)
+  local selected = self:get_item_selected()
   local caught = false
 
   self:hide()
@@ -153,7 +182,7 @@ function ContextMenu:on_mouse_pressed(button, x, y, clicks)
   end
 
   if button == "right" then
-    caught = self:show(x, y)
+    caught = self:show(px, py)
   end
   return caught
 end
diff --git a/data/plugins/contextmenu.lua b/data/plugins/contextmenu.lua
index 017846ae..ac811b2a 100644
--- a/data/plugins/contextmenu.lua
+++ b/data/plugins/contextmenu.lua
@@ -3,6 +3,7 @@ local core = require "core"
 local command = require "core.command"
 local keymap = require "core.keymap"
 local ContextMenu = require "core.contextmenu"
+local DocView = require "core.docview"
 local RootView = require "core.rootview"
 
 local menu = ContextMenu()
@@ -32,7 +33,7 @@ function RootView:draw(...)
   menu:draw()
 end
 
-command.add(nil, {
+command.add(function() return getmetatable(core.active_view) == DocView end, {
   ["context:show"] = function()
     menu:show(core.active_view.position.x, core.active_view.position.y)
   end
@@ -42,6 +43,25 @@ keymap.add {
   ["menu"] = "context:show"
 }
 
+command.add(function() return menu.show_context_menu == true end, {
+  ["context:focus-previous"] = function()
+    menu:focus_previous()
+  end,
+  ["context:focus-next"] = function()
+    menu:focus_next()
+  end,
+  ["context:hide"] = function()
+    menu:hide()
+  end,
+  ["context:on-selected"] = function()
+    menu:call_selected_item()
+  end,
+})
+keymap.add { ["return"] = "context:on-selected" }
+keymap.add { ["up"] = "context:focus-previous" }
+keymap.add { ["down"] = "context:focus-next" }
+keymap.add { ["escape"] = "context:hide" }
+
 if require("plugins.scale") then
   menu:register("core.docview", {
     { text = "Cut",         command = "doc:cut" },