input: Recognize mouse events for abstract_ui

test/functional/ui/mouse_spec.lua

@@ -0,0 +1,157 @@
+local helpers = require('test.functional.helpers')
+local Screen = require('test.functional.ui.screen')
+local clear, feed, nvim = helpers.clear, helpers.feed, helpers.nvim
+
+describe('Mouse input', function()
+  local screen, hlgroup_colors
+
+  setup(function()
+    hlgroup_colors = {
+      Visual = nvim('name_to_color', 'LightGrey'),
+    }
+  end)
+
+  before_each(function()
+    clear()
+    nvim('set_option', 'mouse', 'a')
+    -- set mouset to very high value to ensure that even in valgrind/travis,
+    -- nvim will still pick multiple clicks
+    nvim('set_option', 'mouset', 5000)
+    screen = Screen.new(25, 5)
+    screen:attach()
+    screen:set_default_attr_ids({
+      [1] = {background = hlgroup_colors.Visual}
+    })
+    feed('itesting<cr>mouse<cr>support and selection<esc>')
+    screen:expect([[
+      testing                  |
+      mouse                    |
+      support and selectio^    |
+      ~                        |
+                               |
+    ]])
+  end)
+
+  after_each(function()
+    screen:detach()
+  end)
+
+  it('left click moves cursor', function()
+    feed('<LeftMouse><2,1>')
+    screen:expect([[
+      testing                  |
+      mo^se                    |
+      support and selection    |
+      ~                        |
+                               |
+    ]])
+    feed('<LeftMouse><0,0>')
+    screen:expect([[
+      ^esting                  |
+      mouse                    |
+      support and selection    |
+      ~                        |
+                               |
+    ]])
+  end)
+
+  it('left drag changes visual selection', function()
+    -- drag events must be preceded by a click
+    feed('<LeftMouse><2,1>')
+    screen:expect([[
+      testing                  |
+      mo^se                    |
+      support and selection    |
+      ~                        |
+                               |
+    ]])
+    feed('<LeftDrag><4,1>')
+    screen:expect([[
+      testing                  |
+      mo{1:us}^                    |
+      support and selection    |
+      ~                        |
+      -- VISUAL --             |
+    ]])
+    feed('<LeftDrag><2,2>')
+    screen:expect([[
+      testing                  |
+      mo{1:use }                   |
+      {1:su}^port and selection    |
+      ~                        |
+      -- VISUAL --             |
+    ]])
+    feed('<LeftDrag><0,0>')
+    screen:expect([[
+      ^{1:esting }                 |
+      {1:mou}se                    |
+      support and selection    |
+      ~                        |
+      -- VISUAL --             |
+    ]])
+  end)
+
+  it('two clicks will select the word and enter VISUAL', function()
+    feed('<LeftMouse><2,2><LeftMouse><2,2>')
+    screen:expect([[
+      testing                  |
+      mouse                    |
+      {1:suppor}^ and selection    |
+      ~                        |
+      -- VISUAL --             |
+    ]])
+  end)
+
+  it('three clicks will select the line and enter VISUAL LINE', function()
+    feed('<LeftMouse><2,2><LeftMouse><2,2><LeftMouse><2,2>')
+    screen:expect([[
+      testing                  |
+      mouse                    |
+      {1:su}^{1:port and selection }   |
+      ~                        |
+      -- VISUAL LINE --        |
+    ]])
+  end)
+
+  it('four clicks will enter VISUAL BLOCK', function()
+    feed('<LeftMouse><2,2><LeftMouse><2,2><LeftMouse><2,2><LeftMouse><2,2>')
+    screen:expect([[
+      testing                  |
+      mouse                    |
+      su^port and selection    |
+      ~                        |
+      -- VISUAL BLOCK --       |
+    ]])
+  end)
+
+  it('right click extends visual selection to the clicked location', function()
+    feed('<LeftMouse><0,0>')
+    screen:expect([[
+      ^esting                  |
+      mouse                    |
+      support and selection    |
+      ~                        |
+                               |
+    ]])
+    feed('<RightMouse><2,2>')
+    screen:expect([[
+      {1:testing }                 |
+      {1:mouse }                   |
+      {1:su}^port and selection    |
+      ~                        |
+      -- VISUAL --             |
+    ]])
+  end)
+
+  it('ctrl + left click will search for a tag', function()
+    feed('<C-LeftMouse><0,0>')
+    screen:expect([[
+      E433: No tags file       |
+      E426: tag not found: test|
+      ing                      |
+      Press ENTER or type comma|
+      nd to continue^          |
+    ]])
+    feed('<cr>')
+  end)
+end)