[vim mode] Add keymap to indent

Author: hokaccha

keymap/vim.js

@@ -190,6 +190,8 @@
     { keys: '.', type: 'action', action: 'repeatLastEdit' },
     { keys: '<C-a>', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: true, backtrack: false}},
     { keys: '<C-x>', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: false, backtrack: false}},
+    { keys: '<C-t>', type: 'action', action: 'indent', actionArgs: { indentRight: true }, context: 'insert' },
+    { keys: '<C-d>', type: 'action', action: 'indent', actionArgs: { indentRight: false }, context: 'insert' },
     // Text object motions
     { keys: 'a<character>', type: 'motion', motion: 'textObjectManipulation' },
     { keys: 'i<character>', type: 'motion', motion: 'textObjectManipulation', motionArgs: { textObjectInner: true }},
@@ -2616,6 +2618,9 @@
         }
         repeatLastEdit(cm, vim, repeat, false /** repeatForInsert */);
       },
+      indent: function(cm, actionArgs) {
+        cm.indentLine(cm.getCursor().line, actionArgs.indentRight);
+      },
       exitInsertMode: exitInsertMode
     };
 

test/vim_test.js

@@ -3393,6 +3393,21 @@ testVim('[m, ]m, [M, ]M', function(cm, vim, helpers) {
   helpers.assertCursorAt(7,3);
 }, { value: squareBracketMotionSandbox});
 
+testVim('i_indent_right', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedValue = '   word1\nword2\nword3 ';
+  helpers.doKeys('i', '<C-t>');
+  eq(expectedValue, cm.getValue());
+  helpers.assertCursorAt(0, 5);
+}, { value: ' word1\nword2\nword3 ', indentUnit: 2 });
+testVim('i_indent_left', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedValue = ' word1\nword2\nword3 ';
+  helpers.doKeys('i', '<C-d>');
+  eq(expectedValue, cm.getValue());
+  helpers.assertCursorAt(0, 1);
+}, { value: '   word1\nword2\nword3 ', indentUnit: 2 });
+
 // Ex mode tests
 testVim('ex_go_to_line', function(cm, vim, helpers) {
   cm.setCursor(0, 0);