Add API to split panes to API server.

api/examples/python/api_pb2.py

@@ -20,7 +20,7 @@ DESCRIPTOR = _descriptor.FileDescriptor(
   name='api.proto',
   package='iterm2',
   syntax='proto2',
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\x01(\t\"V\n\x06Status\x12\x06\n\x02OK\x10\x00\x12\x15\n\x11SESSION_NOT_FOUND\x10\x01\x12\x15\n\x11REQUEST_MALFORMED\x10\x02\x12\x16\n\x12PROMPT_UNAVAILABLE\x10\x03\"M\n\x19SetProfilePropertyRequest\x12\x0f\n\x07session\x18\x01 \x01(\t\x12\x0b\n\x03key\x18\x02 \x01(\t\x12\x12\n\njson_value\x18\x03 \x01(\t\"\x9b\x01\n\x1aSetProfilePropertyResponse\x12=\n\x06status\x18\x01 \x01(\x0e\x32).iterm2.SetProfilePropertyResponse.Status:\x02OK\">\n\x06Status\x12\x06\n\x02OK\x10\x00\x12\x15\n\x11SESSION_NOT_FOUND\x10\x01\x12\x15\n\x11REQUEST_MALFORMED\x10\x02\"#\n\x12TransactionRequest\x12\r\n\x05\x62\x65gin\x18\x01 \x01(\x08\"\x8f\x01\n\x13TransactionResponse\x12\x36\n\x06status\x18\x01 \x01(\x0e\x32\".iterm2.TransactionResponse.Status:\x02OK\"@\n\x06Status\x12\x06\n\x02OK\x10\x00\x12\x12\n\x0eNO_TRANSACTION\x10\x01\x12\x1a\n\x16\x41LREADY_IN_TRANSACTION\x10\x02\"A\n\tLineRange\x12\x1c\n\x14screen_contents_only\x18\x01 \x01(\x08\x12\x16\n\x0etrailing_lines\x18\x02 \x01(\x05\")\n\x05Range\x12\x10\n\x08location\x18\x01 \x01(\x03\x12\x0e\n\x06length\x18\x02 \x01(\x03\"F\n\nCoordRange\x12\x1c\n\x05start\x18\x01 \x01(\x0b\x32\r.iterm2.Coord\x12\x1a\n\x03\x65nd\x18\x02 \x01(\x0b\x32\r.iterm2.Coord\"\x1d\n\x05\x43oord\x12\t\n\x01x\x18\x01 \x01(\x05\x12\t\n\x01y\x18\x02 \x01(\x03\"\xeb\x01\n\x0cLineContents\x12\x0c\n\x04text\x18\x01 \x01(\t\x12\x37\n\x14\x63ode_points_per_cell\x18\x02 \x03(\x0b\x32\x19.iterm2.CodePointsPerCell\x12N\n\x0c\x63ontinuation\x18\x03 \x01(\x0e\x32!.iterm2.LineContents.Continuation:\x15\x43ONTINUATION_HARD_EOL\"D\n\x0c\x43ontinuation\x12\x19\n\x15\x43ONTINUATION_HARD_EOL\x10\x01\x12\x19\n\x15\x43ONTINUATION_SOFT_EOL\x10\x02\"@\n\x11\x43odePointsPerCell\x12\x1a\n\x0fnum_code_points\x18\x01 \x01(\x05:\x01\x31\x12\x0f\n\x07repeats\x18\x02 \x01(\x05\"\x15\n\x13ListSessionsRequest\"0\n\x0fSendTextRequest\x12\x0f\n\x07session\x18\x01 \x01(\t\x12\x0c\n\x04text\x18\x02 \x01(\t\"l\n\x10SendTextResponse\x12/\n\x06status\x18\x01 \x01(\x0e\x32\x1f.iterm2.SendTextResponse.Status\"\'\n\x06Status\x12\x06\n\x02OK\x10\x00\x12\x15\n\x11SESSION_NOT_FOUND\x10\x01\"\xea\x01\n\x14ListSessionsResponse\x12\x34\n\x07windows\x18\x01 \x03(\x0b\x32#.iterm2.ListSessionsResponse.Window\x1a\x38\n\x06Window\x12.\n\x04tabs\x18\x01 \x03(\x0b\x32 .iterm2.ListSessionsResponse.Tab\x1a=\n\x03Tab\x12\x36\n\x08sessions\x18\x01 \x03(\x0b\x32$.iterm2.ListSessionsResponse.Session\x1a#\n\x07Session\x12\x18\n\x10uniqueIdentifier\x18\x01 \x01(\t\"_\n\x10\x43reateTabRequest\x12\x14\n\x0cprofile_name\x18\x01 \x01(\t\x12\x11\n\twindow_id\x18\x02 \x01(\t\x12\x11\n\ttab_index\x18\x03 \x01(\r\x12\x0f\n\x07\x63ommand\x18\x04 \x01(\t\"\xf0\x01\n\x11\x43reateTabResponse\x12\x30\n\x06status\x18\x01 \x01(\x0e\x32 .iterm2.CreateTabResponse.Status\x12\x11\n\twindow_id\x18\x02 \x01(\t\x12\x0e\n\x06tab_id\x18\x03 \x01(\x05\x12\x12\n\nsession_id\x18\x04 \x01(\t\"r\n\x06Status\x12\x06\n\x02OK\x10\x00\x12\x18\n\x14INVALID_PROFILE_NAME\x10\x01\x12\x15\n\x11INVALID_WINDOW_ID\x10\x02\x12\x15\n\x11INVALID_TAB_INDEX\x10\x03\x12\x18\n\x14MISSING_SUBSTITUTION\x10\x04\"\xbb\x01\n\x10SplitPaneRequest\x12\x0f\n\x07session\x18\x01 \x01(\t\x12@\n\x0fsplit_direction\x18\x02 \x01(\x0e\x32\'.iterm2.SplitPaneRequest.SplitDirection\x12\x0e\n\x06\x62\x65\x66ore\x18\x03 \x01(\x08\x12\x14\n\x0cprofile_name\x18\x04 \x01(\t\".\n\x0eSplitDirection\x12\x0c\n\x08VERTICAL\x10\x00\x12\x0e\n\nHORIZONTAL\x10\x01\"\xae\x01\n\x11SplitPaneResponse\x12\x30\n\x06status\x18\x01 \x01(\x0e\x32 .iterm2.SplitPaneResponse.Status\x12\x12\n\nsession_id\x18\x02 \x01(\t\"S\n\x06Status\x12\x06\n\x02OK\x10\x00\x12\x15\n\x11SESSION_NOT_FOUND\x10\x01\x12\x18\n\x14INVALID_PROFILE_NAME\x10\x02\x12\x10\n\x0c\x43\x41NNOT_SPLIT\x10\x03*\xbe\x01\n\x10NotificationType\x12\x17\n\x13NOTIFY_ON_KEYSTROKE\x10\x01\x12\x1b\n\x17NOTIFY_ON_SCREEN_UPDATE\x10\x02\x12\x14\n\x10NOTIFY_ON_PROMPT\x10\x03\x12\x1d\n\x19NOTIFY_ON_LOCATION_CHANGE\x10\x04\x12$\n NOTIFY_ON_CUSTOM_ESCAPE_SEQUENCE\x10\x05\x12\x19\n\x15NOTIFY_ON_NEW_SESSION\x10\x06\x42\x06\xa2\x02\x03ITM')
 )
 _sym_db.RegisterFileDescriptor(DESCRIPTOR)
@@ -57,8 +57,8 @@ _NOTIFICATIONTYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=5315,
-  serialized_end=5505,
+  serialized_start=5792,
+  serialized_end=5982,
 )
 _sym_db.RegisterEnumDescriptor(_NOTIFICATIONTYPE)
@@ -84,8 +84,8 @@ _REGISTERTOOLREQUEST_TOOLTYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=1367,
-  serialized_end=1396,
+  serialized_start=1477,
+  serialized_end=1506,
 )
 _sym_db.RegisterEnumDescriptor(_REGISTERTOOLREQUEST_TOOLTYPE)
@@ -110,8 +110,8 @@ _REGISTERTOOLRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=1476,
-  serialized_end=1538,
+  serialized_start=1586,
+  serialized_end=1648,
 )
 _sym_db.RegisterEnumDescriptor(_REGISTERTOOLRESPONSE_STATUS)
@@ -144,8 +144,8 @@ _NOTIFICATIONRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=1730,
-  serialized_end=1836,
+  serialized_start=1840,
+  serialized_end=1946,
 )
 _sym_db.RegisterEnumDescriptor(_NOTIFICATIONRESPONSE_STATUS)
@@ -182,8 +182,8 @@ _KEYSTROKENOTIFICATION_MODIFIERS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=2449,
-  serialized_end=2535,
+  serialized_start=2559,
+  serialized_end=2645,
 )
 _sym_db.RegisterEnumDescriptor(_KEYSTROKENOTIFICATION_MODIFIERS)
@@ -212,8 +212,8 @@ _GETBUFFERRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3157,
-  serialized_end=3243,
+  serialized_start=3267,
+  serialized_end=3353,
 )
 _sym_db.RegisterEnumDescriptor(_GETBUFFERRESPONSE_STATUS)
@@ -242,8 +242,8 @@ _GETPROMPTRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3529,
-  serialized_end=3615,
+  serialized_start=3639,
+  serialized_end=3725,
 )
 _sym_db.RegisterEnumDescriptor(_GETPROMPTRESPONSE_STATUS)
@@ -268,8 +268,8 @@ _SETPROFILEPROPERTYRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=1730,
-  serialized_end=1792,
+  serialized_start=1840,
+  serialized_end=1902,
 )
 _sym_db.RegisterEnumDescriptor(_SETPROFILEPROPERTYRESPONSE_STATUS)
@@ -294,8 +294,8 @@ _TRANSACTIONRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3971,
-  serialized_end=4035,
+  serialized_start=4081,
+  serialized_end=4145,
 )
 _sym_db.RegisterEnumDescriptor(_TRANSACTIONRESPONSE_STATUS)
@@ -316,8 +316,8 @@ _LINECONTENTS_CONTINUATION = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=4418,
-  serialized_end=4486,
+  serialized_start=4528,
+  serialized_end=4596,
 )
 _sym_db.RegisterEnumDescriptor(_LINECONTENTS_CONTINUATION)
@@ -338,8 +338,8 @@ _SENDTEXTRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=1730,
-  serialized_end=1769,
+  serialized_start=1840,
+  serialized_end=1879,
 )
 _sym_db.RegisterEnumDescriptor(_SENDTEXTRESPONSE_STATUS)
@@ -372,11 +372,63 @@ _CREATETABRESPONSE_STATUS = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=5198,
-  serialized_end=5312,
+  serialized_start=5308,
+  serialized_end=5422,
 )
 _sym_db.RegisterEnumDescriptor(_CREATETABRESPONSE_STATUS)
+_SPLITPANEREQUEST_SPLITDIRECTION = _descriptor.EnumDescriptor(
+  name='SplitDirection',
+  full_name='iterm2.SplitPaneRequest.SplitDirection',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='VERTICAL', index=0, number=0,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='HORIZONTAL', index=1, number=1,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=5566,
+  serialized_end=5612,
+)
+_sym_db.RegisterEnumDescriptor(_SPLITPANEREQUEST_SPLITDIRECTION)
+
+_SPLITPANERESPONSE_STATUS = _descriptor.EnumDescriptor(
+  name='Status',
+  full_name='iterm2.SplitPaneResponse.Status',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='OK', index=0, number=0,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='SESSION_NOT_FOUND', index=1, number=1,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='INVALID_PROFILE_NAME', index=2, number=2,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='CANNOT_SPLIT', index=3, number=3,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=5706,
+  serialized_end=5789,
+)
+_sym_db.RegisterEnumDescriptor(_SPLITPANERESPONSE_STATUS)
+
 _REQUEST = _descriptor.Descriptor(
   name='Request',
@@ -455,6 +507,13 @@ _REQUEST = _descriptor.Descriptor(
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
+    _descriptor.FieldDescriptor(
+      name='split_pane_request', full_name='iterm2.Request.split_pane_request', index=10,
+      number=109, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
   ],
   extensions=[
   ],
@@ -468,7 +527,7 @@ _REQUEST = _descriptor.Descriptor(
   oneofs=[
   ],
   serialized_start=22,
-  serialized_end=566,
+  serialized_end=620,
 )
@@ -550,7 +609,14 @@ _RESPONSE = _descriptor.Descriptor(
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='notification', full_name='iterm2.Response.notification', index=10,
+      name='split_pane_response', full_name='iterm2.Response.split_pane_response', index=10,
+      number=109, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='notification', full_name='iterm2.Response.notification', index=11,
       number=1000, type=11, cpp_type=10, label=1,
       has_default_value=False, default_value=None,
       message_type=None, enum_type=None, containing_type=None,
@@ -568,8 +634,8 @@ _RESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=569,
-  serialized_end=1177,
+  serialized_start=623,
+  serialized_end=1287,
 )
@@ -628,8 +694,8 @@ _REGISTERTOOLREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1180,
-  serialized_end=1396,
+  serialized_start=1290,
+  serialized_end=1506,
 )
@@ -660,8 +726,8 @@ _REGISTERTOOLRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1399,
-  serialized_end=1538,
+  serialized_start=1509,
+  serialized_end=1648,
 )
@@ -705,8 +771,8 @@ _NOTIFICATIONREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1540,
-  serialized_end=1650,
+  serialized_start=1650,
+  serialized_end=1760,
 )
@@ -737,8 +803,8 @@ _NOTIFICATIONRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1653,
-  serialized_end=1836,
+  serialized_start=1763,
+  serialized_end=1946,
 )
@@ -803,8 +869,8 @@ _NOTIFICATION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1839,
-  serialized_end=2270,
+  serialized_start=1949,
+  serialized_end=2380,
 )
@@ -863,8 +929,8 @@ _KEYSTROKENOTIFICATION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2273,
-  serialized_end=2535,
+  serialized_start=2383,
+  serialized_end=2645,
 )
@@ -894,8 +960,8 @@ _SCREENUPDATENOTIFICATION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2537,
-  serialized_end=2580,
+  serialized_start=2647,
+  serialized_end=2690,
 )
@@ -925,8 +991,8 @@ _PROMPTNOTIFICATION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2582,
-  serialized_end=2619,
+  serialized_start=2692,
+  serialized_end=2729,
 )
@@ -977,8 +1043,8 @@ _LOCATIONCHANGENOTIFICATION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2621,
-  serialized_end=2723,
+  serialized_start=2731,
+  serialized_end=2833,
 )
@@ -1022,8 +1088,8 @@ _CUSTOMESCAPESEQUENCENOTIFICATION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2725,
-  serialized_end=2818,
+  serialized_start=2835,
+  serialized_end=2928,
 )
@@ -1053,8 +1119,8 @@ _NEWSESSIONNOTIFICATION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2820,
-  serialized_end=2870,
+  serialized_start=2930,
+  serialized_end=2980,
 )
@@ -1091,8 +1157,8 @@ _GETBUFFERREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2872,
-  serialized_end=2946,
+  serialized_start=2982,
+  serialized_end=3056,
 )
@@ -1151,8 +1217,8 @@ _GETBUFFERRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2949,
-  serialized_end=3243,
+  serialized_start=3059,
+  serialized_end=3353,
 )
@@ -1182,8 +1248,8 @@ _GETPROMPTREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3245,
-  serialized_end=3280,
+  serialized_start=3355,
+  serialized_end=3390,
 )
@@ -1249,8 +1315,8 @@ _GETPROMPTRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3283,
-  serialized_end=3615,
+  serialized_start=3393,
+  serialized_end=3725,
 )
@@ -1294,8 +1360,8 @@ _SETPROFILEPROPERTYREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3617,
-  serialized_end=3694,
+  serialized_start=3727,
+  serialized_end=3804,
 )
@@ -1326,8 +1392,8 @@ _SETPROFILEPROPERTYRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3697,
-  serialized_end=3852,
+  serialized_start=3807,
+  serialized_end=3962,
 )
@@ -1357,8 +1423,8 @@ _TRANSACTIONREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3854,
-  serialized_end=3889,
+  serialized_start=3964,
+  serialized_end=3999,
 )
@@ -1389,8 +1455,8 @@ _TRANSACTIONRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3892,
-  serialized_end=4035,
+  serialized_start=4002,
+  serialized_end=4145,
 )
@@ -1427,8 +1493,8 @@ _LINERANGE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4037,
-  serialized_end=4102,
+  serialized_start=4147,
+  serialized_end=4212,
 )
@@ -1465,8 +1531,8 @@ _RANGE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4104,
-  serialized_end=4145,
+  serialized_start=4214,
+  serialized_end=4255,
 )
@@ -1503,8 +1569,8 @@ _COORDRANGE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4147,
-  serialized_end=4217,
+  serialized_start=4257,
+  serialized_end=4327,
 )
@@ -1541,8 +1607,8 @@ _COORD = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4219,
-  serialized_end=4248,
+  serialized_start=4329,
+  serialized_end=4358,
 )
@@ -1587,8 +1653,8 @@ _LINECONTENTS = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4251,
-  serialized_end=4486,
+  serialized_start=4361,
+  serialized_end=4596,
 )
@@ -1625,8 +1691,8 @@ _CODEPOINTSPERCELL = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4488,
-  serialized_end=4552,
+  serialized_start=4598,
+  serialized_end=4662,
 )
@@ -1649,8 +1715,8 @@ _LISTSESSIONSREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4554,
-  serialized_end=4575,
+  serialized_start=4664,
+  serialized_end=4685,
 )
@@ -1687,8 +1753,8 @@ _SENDTEXTREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4577,
-  serialized_end=4625,
+  serialized_start=4687,
+  serialized_end=4735,
 )
@@ -1719,8 +1785,8 @@ _SENDTEXTRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4627,
-  serialized_end=4735,
+  serialized_start=4737,
+  serialized_end=4845,
 )
@@ -1750,8 +1816,8 @@ _LISTSESSIONSRESPONSE_WINDOW = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4816,
-  serialized_end=4872,
+  serialized_start=4926,
+  serialized_end=4982,
 )
 _LISTSESSIONSRESPONSE_TAB = _descriptor.Descriptor(
@@ -1780,8 +1846,8 @@ _LISTSESSIONSRESPONSE_TAB = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4874,
-  serialized_end=4935,
+  serialized_start=4984,
+  serialized_end=5045,
 )
 _LISTSESSIONSRESPONSE_SESSION = _descriptor.Descriptor(
@@ -1810,8 +1876,8 @@ _LISTSESSIONSRESPONSE_SESSION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4937,
-  serialized_end=4972,
+  serialized_start=5047,
+  serialized_end=5082,
 )
 _LISTSESSIONSRESPONSE = _descriptor.Descriptor(
@@ -1840,8 +1906,8 @@ _LISTSESSIONSRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4738,
-  serialized_end=4972,
+  serialized_start=4848,
+  serialized_end=5082,
 )
@@ -1892,8 +1958,8 @@ _CREATETABREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4974,
-  serialized_end=5069,
+  serialized_start=5084,
+  serialized_end=5179,
 )
@@ -1945,8 +2011,100 @@ _CREATETABRESPONSE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=5072,
-  serialized_end=5312,
+  serialized_start=5182,
+  serialized_end=5422,
+)
+
+
+_SPLITPANEREQUEST = _descriptor.Descriptor(
+  name='SplitPaneRequest',
+  full_name='iterm2.SplitPaneRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='session', full_name='iterm2.SplitPaneRequest.session', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='split_direction', full_name='iterm2.SplitPaneRequest.split_direction', index=1,
+      number=2, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='before', full_name='iterm2.SplitPaneRequest.before', index=2,
+      number=3, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='profile_name', full_name='iterm2.SplitPaneRequest.profile_name', index=3,
+      number=4, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+    _SPLITPANEREQUEST_SPLITDIRECTION,
+  ],
+  options=None,
+  is_extendable=False,
+  syntax='proto2',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=5425,
+  serialized_end=5612,
+)
+
+
+_SPLITPANERESPONSE = _descriptor.Descriptor(
+  name='SplitPaneResponse',
+  full_name='iterm2.SplitPaneResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='status', full_name='iterm2.SplitPaneResponse.status', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='session_id', full_name='iterm2.SplitPaneResponse.session_id', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+    _SPLITPANERESPONSE_STATUS,
+  ],
+  options=None,
+  is_extendable=False,
+  syntax='proto2',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=5615,
+  serialized_end=5789,
 )
 _REQUEST.fields_by_name['get_buffer_request'].message_type = _GETBUFFERREQUEST
@@ -1958,6 +2116,7 @@ _REQUEST.fields_by_name['set_profile_property_request'].message_type = _SETPROFI
 _REQUEST.fields_by_name['list_sessions_request'].message_type = _LISTSESSIONSREQUEST
 _REQUEST.fields_by_name['send_text_request'].message_type = _SENDTEXTREQUEST
 _REQUEST.fields_by_name['create_tab_request'].message_type = _CREATETABREQUEST
+_REQUEST.fields_by_name['split_pane_request'].message_type = _SPLITPANEREQUEST
 _RESPONSE.fields_by_name['get_buffer_response'].message_type = _GETBUFFERRESPONSE
 _RESPONSE.fields_by_name['get_prompt_response'].message_type = _GETPROMPTRESPONSE
 _RESPONSE.fields_by_name['transaction_response'].message_type = _TRANSACTIONRESPONSE
@@ -1967,6 +2126,7 @@ _RESPONSE.fields_by_name['set_profile_property_response'].message_type = _SETPRO
 _RESPONSE.fields_by_name['list_sessions_response'].message_type = _LISTSESSIONSRESPONSE
 _RESPONSE.fields_by_name['send_text_response'].message_type = _SENDTEXTRESPONSE
 _RESPONSE.fields_by_name['create_tab_response'].message_type = _CREATETABRESPONSE
+_RESPONSE.fields_by_name['split_pane_response'].message_type = _SPLITPANERESPONSE
 _RESPONSE.fields_by_name['notification'].message_type = _NOTIFICATION
 _REGISTERTOOLREQUEST.fields_by_name['tool_type'].enum_type = _REGISTERTOOLREQUEST_TOOLTYPE
 _REGISTERTOOLREQUEST_TOOLTYPE.containing_type = _REGISTERTOOLREQUEST
@@ -2013,6 +2173,10 @@ _LISTSESSIONSRESPONSE_SESSION.containing_type = _LISTSESSIONSRESPONSE
 _LISTSESSIONSRESPONSE.fields_by_name['windows'].message_type = _LISTSESSIONSRESPONSE_WINDOW
 _CREATETABRESPONSE.fields_by_name['status'].enum_type = _CREATETABRESPONSE_STATUS
 _CREATETABRESPONSE_STATUS.containing_type = _CREATETABRESPONSE
+_SPLITPANEREQUEST.fields_by_name['split_direction'].enum_type = _SPLITPANEREQUEST_SPLITDIRECTION
+_SPLITPANEREQUEST_SPLITDIRECTION.containing_type = _SPLITPANEREQUEST
+_SPLITPANERESPONSE.fields_by_name['status'].enum_type = _SPLITPANERESPONSE_STATUS
+_SPLITPANERESPONSE_STATUS.containing_type = _SPLITPANERESPONSE
 DESCRIPTOR.message_types_by_name['Request'] = _REQUEST
 DESCRIPTOR.message_types_by_name['Response'] = _RESPONSE
 DESCRIPTOR.message_types_by_name['RegisterToolRequest'] = _REGISTERTOOLREQUEST
@@ -2046,6 +2210,8 @@ DESCRIPTOR.message_types_by_name['SendTextResponse'] = _SENDTEXTRESPONSE
 DESCRIPTOR.message_types_by_name['ListSessionsResponse'] = _LISTSESSIONSRESPONSE
 DESCRIPTOR.message_types_by_name['CreateTabRequest'] = _CREATETABREQUEST
 DESCRIPTOR.message_types_by_name['CreateTabResponse'] = _CREATETABRESPONSE
+DESCRIPTOR.message_types_by_name['SplitPaneRequest'] = _SPLITPANEREQUEST
+DESCRIPTOR.message_types_by_name['SplitPaneResponse'] = _SPLITPANERESPONSE
 DESCRIPTOR.enum_types_by_name['NotificationType'] = _NOTIFICATIONTYPE
 Request = _reflection.GeneratedProtocolMessageType('Request', (_message.Message,), dict(
@@ -2303,6 +2469,20 @@ CreateTabResponse = _reflection.GeneratedProtocolMessageType('CreateTabResponse'
   ))
 _sym_db.RegisterMessage(CreateTabResponse)
+SplitPaneRequest = _reflection.GeneratedProtocolMessageType('SplitPaneRequest', (_message.Message,), dict(
+  DESCRIPTOR = _SPLITPANEREQUEST,
+  __module__ = 'api_pb2'
+  # @@protoc_insertion_point(class_scope:iterm2.SplitPaneRequest)
+  ))
+_sym_db.RegisterMessage(SplitPaneRequest)
+
+SplitPaneResponse = _reflection.GeneratedProtocolMessageType('SplitPaneResponse', (_message.Message,), dict(
+  DESCRIPTOR = _SPLITPANERESPONSE,
+  __module__ = 'api_pb2'
+  # @@protoc_insertion_point(class_scope:iterm2.SplitPaneResponse)
+  ))
+_sym_db.RegisterMessage(SplitPaneResponse)
+
 DESCRIPTOR.has_options = True
 DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), _b('\242\002\003ITM'))

api/examples/python/it2api

@@ -9,6 +9,7 @@ import logging
 import sys
 import thread
 import time
+import traceback
 import websocket
 callbacks = []
@@ -52,6 +53,33 @@ def create_tab(ws, argv):
     request.create_tab_request.command = args.command
   SendRPC(ws, request, callback)
+def split_pane(ws, argv):
+  def callback(response):
+    print(str(response))
+    ws.close()
+  parser = argparse.ArgumentParser(description='Split a pane')
+  parser.add_argument('--session', type=str, nargs='?', help='Session ID')
+  parser.add_argument('--vertical', action='store_true', help='Split vertically?', default=False)
+  parser.add_argument('--before', action='store_true', help='Spilt left or above target', default=False)
+  parser.add_argument('--profile', type=str, nargs='?', help='Profile name')
+  args = parser.parse_args(argv[2:])
+
+  request = api_pb2.Request()
+  request.split_pane_request.SetInParent()
+  if args.session is not None:
+    request.split_pane_request.session_id = args.session
+  if args.vertical is None:
+    request.split_pane_request.split_direction = api_pb2.SplitPaneRequest.VERTICAL
+  else:
+    request.split_pane_request.split_direction = api_pb2.SplitPaneRequest.HORIZONTAL;
+  if args.before is None:
+    request.split_pane_request.before = False
+  else:
+    request.split_pane_request.before = args.before
+  if args.profile is not None:
+    request.split_pane_request.profile_name = args.profile
+  SendRPC(ws, request, callback)
+
 def handle_location_change_notification(location_change_notification):
     print("Location changed")
     print(str(location_change_notification))
@@ -94,12 +122,12 @@ def on_close(ws):
     print("Connection closed")
 def main(argv):
-    print("starting")
     logging.basicConfig()
     commands = { "list-sessions": list_sessions,
                  "send-text": send_text,
-                 "create-tab": create_tab }
+                 "create-tab": create_tab,
+                 "split-pane": split_pane }
     if len(argv) < 2:
       print("Not enough arguments")
       return -1
@@ -108,8 +136,11 @@ def main(argv):
       return -2
     def on_open(ws):
-      f = commands[argv[1]]
-      f(ws, argv)
+      try:
+        f = commands[argv[1]]
+        f(ws, argv)
+      except Exception as e:
+        traceback.print_exc()
     #websocket.enableTrace(True)
     ws = websocket.WebSocketApp("ws://localhost:1912/",

proto/api.proto

@@ -17,6 +17,7 @@ message Request {
   optional ListSessionsRequest list_sessions_request = 106;
   optional SendTextRequest send_text_request = 107;
   optional CreateTabRequest create_tab_request = 108;
+  optional SplitPaneRequest split_pane_request = 109;
 }
 // All responses are wrapped in this message. This encoded message is the entirety of the payload
@@ -33,6 +34,7 @@ message Response {
   optional ListSessionsResponse list_sessions_response = 106;
   optional SendTextResponse send_text_response = 107;
   optional CreateTabResponse create_tab_response = 108;
+  optional SplitPaneResponse split_pane_response = 109;
   // This is the only response that is sent spontaneously. The 'id' field will not be set.
   optional Notification notification = 1000;
@@ -535,3 +537,35 @@ message CreateTabResponse {
   optional int32 tab_id = 3;
   optional string session_id = 4;
 }
+
+message SplitPaneRequest {
+  // Leave this empty to use the current session, if any.
+  optional string session = 1;
+
+  enum SplitDirection {
+    VERTICAL = 0;
+    HORIZONTAL = 1;
+  }
+  optional SplitDirection split_direction = 2;
+
+  // If true, new session is above/left of the session being split. Otherwise, it goes below/right.
+  optional bool before = 3 [default=false];
+
+  // Leave unset to use the default profile.
+  optional string profile_name = 4;
+}
+
+message SplitPaneResponse {
+  enum Status {
+    OK = 0;
+    SESSION_NOT_FOUND = 1;
+    INVALID_PROFILE_NAME = 2;
+    // This can happen if the session to be split is too small.
+    CANNOT_SPLIT = 3;
+  }
+  optional Status status = 1;
+
+  // TODO(gln): this will not be set for tmux integration because the split happens only if/when the
+  // tmux server acts on the request.
+  optional string session_id = 2;
+}

sources/PseudoTerminal.h

@@ -273,6 +273,11 @@ extern NSString *const iTermDidDecodeWindowRestorableStateNotification;
 // Change split selection mode for all sessions in this window.
 - (void)setSplitSelectionMode:(BOOL)mode excludingSession:(PTYSession *)session move:(BOOL)move;
+- (PTYSession *)splitVertically:(BOOL)isVertical
+                         before:(BOOL)before
+                        profile:(Profile *)theBookmark
+                  targetSession:(PTYSession *)targetSession;
+
 // Change visibility of menu bar (but only if it should be changed--may do
 // nothing if the menu bar is on a different screen, for example).
 - (void)hideMenuBar;
@@ -338,5 +343,7 @@ extern NSString *const iTermDidDecodeWindowRestorableStateNotification;
 // Returns a restorable session that will restore the split pane, tab, or window, as needed.
 - (iTermRestorableSession *)restorableSessionForSession:(PTYSession *)session;
+- (PTYSession*)newSessionWithBookmark:(Profile*)bookmark;
+
 @end

sources/PseudoTerminal.m

@@ -5454,6 +5454,13 @@ ITERM_WEAKLY_REFERENCEABLE
 - (PTYSession *)splitVertically:(BOOL)isVertical
                    withBookmark:(Profile*)theBookmark
                   targetSession:(PTYSession*)targetSession {
+    return [self splitVertically:isVertical before:NO profile:theBookmark targetSession:targetSession];
+}
+
+- (PTYSession *)splitVertically:(BOOL)isVertical
+                         before:(BOOL)before
+                        profile:(Profile *)theBookmark
+                  targetSession:(PTYSession *)targetSession {
     if ([targetSession isTmuxClient]) {
         [self willSplitTmuxPane];
         [[targetSession tmuxController] selectPane:targetSession.tmuxPane];
@@ -5476,7 +5483,7 @@ ITERM_WEAKLY_REFERENCEABLE
     PTYSession* newSession = [[self newSessionWithBookmark:theBookmark] autorelease];
     [self splitVertically:isVertical
-                   before:NO
+                   before:before
             addingSession:newSession
             targetSession:targetSession
              performSetup:YES];
@@ -7291,8 +7298,7 @@ ITERM_WEAKLY_REFERENCEABLE
 }
 // Allocate a new session and assign it a bookmark. Returns a retained object.
-- (PTYSession*)newSessionWithBookmark:(Profile*)bookmark
-{
+- (PTYSession*)newSessionWithBookmark:(Profile*)bookmark {
     assert(bookmark);
     PTYSession *aSession;

sources/iTermAPIServer.h

@@ -30,7 +30,8 @@ extern NSString *const iTermWebSocketConnectionPeerIdentityBundleIdentifier;
                   handler:(void (^)(ITMSendTextResponse *))handler;
 - (void)apiServerCreateTab:(ITMCreateTabRequest *)request
                    handler:(void (^)(ITMCreateTabResponse *))handler;
-
+- (void)apiServerSplitPane:(ITMSplitPaneRequest *)request
+                   handler:(void (^)(ITMSplitPaneResponse *))handler;
 @end
 @interface iTermAPIServer : NSObject

sources/iTermAPIServer.m

@@ -413,6 +413,15 @@ const char *kWebSocketConnectionHandleAssociatedObjectKey = "kWebSocketConnectio
         }];
         return;
     }
+    if (request.hasSplitPaneRequest) {
+        [_delegate apiServerSplitPane:request.splitPaneRequest handler:^(ITMSplitPaneResponse *splitPaneResponse) {
+            ITMResponse *response = [[ITMResponse alloc] init];
+            response.id_p = request.id_p;
+            response.splitPaneResponse = splitPaneResponse;
+            [weakSelf sendResponse:response onConnection:webSocketConnection];
+        }];
+        return;
+    }
 }
 // Runs on execution queue.

sources/iTermApplicationDelegate.m

@@ -2495,4 +2495,44 @@ static const NSTimeInterval kOneMonth = 30 * 24 * 60 * 60;
     handler(response);
 }
+- (void)apiServerSplitPane:(ITMSplitPaneRequest *)request handler:(void (^)(ITMSplitPaneResponse *))handler {
+    PTYSession *session = [self sessionForAPIIdentifier:request.hasSession ? request.session : nil];
+    PseudoTerminal *term = session ? [[iTermController sharedInstance] terminalWithSession:session] : nil;
+    if (!term || !session || session.exited) {
+        ITMSplitPaneResponse *response = [[[ITMSplitPaneResponse alloc] init] autorelease];
+        response.status = ITMSplitPaneResponse_Status_SessionNotFound;
+        handler(response);
+        return;
+    }
+
+    Profile *profile = [[ProfileModel sharedInstance] defaultBookmark];
+    if (request.hasProfileName) {
+        profile = [[ProfileModel sharedInstance] bookmarkWithName:request.profileName];
+        if (!profile) {
+            ITMSplitPaneResponse *response = [[[ITMSplitPaneResponse alloc] init] autorelease];
+            response.status = ITMSplitPaneResponse_Status_InvalidProfileName;
+            handler(response);
+            return;
+        }
+    }
+
+    PTYSession *newSession = [term splitVertically:request.splitDirection == ITMSplitPaneRequest_SplitDirection_Vertical
+                                            before:request.before
+                                           profile:profile
+                                     targetSession:session];
+    if (newSession == nil && !session.isTmuxClient) {
+        ITMSplitPaneResponse *response = [[[ITMSplitPaneResponse alloc] init] autorelease];
+        response.status = ITMSplitPaneResponse_Status_CannotSplit;
+        handler(response);
+        return;
+    }
+
+    ITMSplitPaneResponse *response = [[[ITMSplitPaneResponse alloc] init] autorelease];
+    response.status = ITMSplitPaneResponse_Status_Ok;
+    if (newSession != nil) {
+        response.sessionId = newSession.guid;
+    }
+    handler(response);
+}
+
 @end

sources/proto/Api.pbobjc.h

@@ -59,6 +59,8 @@ CF_EXTERN_C_BEGIN
 @class ITMSendTextResponse;
 @class ITMSetProfilePropertyRequest;
 @class ITMSetProfilePropertyResponse;
+@class ITMSplitPaneRequest;
+@class ITMSplitPaneResponse;
 @class ITMTransactionRequest;
 @class ITMTransactionResponse;
@@ -275,6 +277,40 @@ GPBEnumDescriptor *ITMCreateTabResponse_Status_EnumDescriptor(void);
  **/
 BOOL ITMCreateTabResponse_Status_IsValidValue(int32_t value);
+#pragma mark - Enum ITMSplitPaneRequest_SplitDirection
+
+typedef GPB_ENUM(ITMSplitPaneRequest_SplitDirection) {
+  ITMSplitPaneRequest_SplitDirection_Vertical = 0,
+  ITMSplitPaneRequest_SplitDirection_Horizontal = 1,
+};
+
+GPBEnumDescriptor *ITMSplitPaneRequest_SplitDirection_EnumDescriptor(void);
+
+/**
+ * Checks to see if the given value is defined by the enum or was not known at
+ * the time this source was generated.
+ **/
+BOOL ITMSplitPaneRequest_SplitDirection_IsValidValue(int32_t value);
+
+#pragma mark - Enum ITMSplitPaneResponse_Status
+
+typedef GPB_ENUM(ITMSplitPaneResponse_Status) {
+  ITMSplitPaneResponse_Status_Ok = 0,
+  ITMSplitPaneResponse_Status_SessionNotFound = 1,
+  ITMSplitPaneResponse_Status_InvalidProfileName = 2,
+
+  /** This can happen if the session to be split is too small. */
+  ITMSplitPaneResponse_Status_CannotSplit = 3,
+};
+
+GPBEnumDescriptor *ITMSplitPaneResponse_Status_EnumDescriptor(void);
+
+/**
+ * Checks to see if the given value is defined by the enum or was not known at
+ * the time this source was generated.
+ **/
+BOOL ITMSplitPaneResponse_Status_IsValidValue(int32_t value);
+
 #pragma mark - ITMApiRoot
 /**
@@ -303,6 +339,7 @@ typedef GPB_ENUM(ITMRequest_FieldNumber) {
   ITMRequest_FieldNumber_ListSessionsRequest = 106,
   ITMRequest_FieldNumber_SendTextRequest = 107,
   ITMRequest_FieldNumber_CreateTabRequest = 108,
+  ITMRequest_FieldNumber_SplitPaneRequest = 109,
 };
 /**
@@ -351,6 +388,10 @@ typedef GPB_ENUM(ITMRequest_FieldNumber) {
 /** Test to see if @c createTabRequest has been set. */
 @property(nonatomic, readwrite) BOOL hasCreateTabRequest;
+@property(nonatomic, readwrite, strong, null_resettable) ITMSplitPaneRequest *splitPaneRequest;
+/** Test to see if @c splitPaneRequest has been set. */
+@property(nonatomic, readwrite) BOOL hasSplitPaneRequest;
+
 @end
 #pragma mark - ITMResponse
@@ -366,6 +407,7 @@ typedef GPB_ENUM(ITMResponse_FieldNumber) {
   ITMResponse_FieldNumber_ListSessionsResponse = 106,
   ITMResponse_FieldNumber_SendTextResponse = 107,
   ITMResponse_FieldNumber_CreateTabResponse = 108,
+  ITMResponse_FieldNumber_SplitPaneResponse = 109,
   ITMResponse_FieldNumber_Notification = 1000,
 };
@@ -414,6 +456,10 @@ typedef GPB_ENUM(ITMResponse_FieldNumber) {
 /** Test to see if @c createTabResponse has been set. */
 @property(nonatomic, readwrite) BOOL hasCreateTabResponse;
+@property(nonatomic, readwrite, strong, null_resettable) ITMSplitPaneResponse *splitPaneResponse;
+/** Test to see if @c splitPaneResponse has been set. */
+@property(nonatomic, readwrite) BOOL hasSplitPaneResponse;
+
 /** This is the only response that is sent spontaneously. The 'id' field will not be set. */
 @property(nonatomic, readwrite, strong, null_resettable) ITMNotification *notification;
 /** Test to see if @c notification has been set. */
@@ -1352,6 +1398,54 @@ typedef GPB_ENUM(ITMCreateTabResponse_FieldNumber) {
 @end
+#pragma mark - ITMSplitPaneRequest
+
+typedef GPB_ENUM(ITMSplitPaneRequest_FieldNumber) {
+  ITMSplitPaneRequest_FieldNumber_Session = 1,
+  ITMSplitPaneRequest_FieldNumber_SplitDirection = 2,
+  ITMSplitPaneRequest_FieldNumber_Before = 3,
+  ITMSplitPaneRequest_FieldNumber_ProfileName = 4,
+};
+
+@interface ITMSplitPaneRequest : GPBMessage
+
+/** Leave this empty to use the current session, if any. */
+@property(nonatomic, readwrite, copy, null_resettable) NSString *session;
+/** Test to see if @c session has been set. */
+@property(nonatomic, readwrite) BOOL hasSession;
+
+@property(nonatomic, readwrite) ITMSplitPaneRequest_SplitDirection splitDirection;
+
+@property(nonatomic, readwrite) BOOL hasSplitDirection;
+/** If true, new session is above/left of the session being split. Otherwise, it goes below/right. */
+@property(nonatomic, readwrite) BOOL before;
+
+@property(nonatomic, readwrite) BOOL hasBefore;
+/** Leave unset to use the default profile. */
+@property(nonatomic, readwrite, copy, null_resettable) NSString *profileName;
+/** Test to see if @c profileName has been set. */
+@property(nonatomic, readwrite) BOOL hasProfileName;
+
+@end
+
+#pragma mark - ITMSplitPaneResponse
+
+typedef GPB_ENUM(ITMSplitPaneResponse_FieldNumber) {
+  ITMSplitPaneResponse_FieldNumber_Status = 1,
+  ITMSplitPaneResponse_FieldNumber_SessionId = 2,
+};
+
+@interface ITMSplitPaneResponse : GPBMessage
+
+@property(nonatomic, readwrite) ITMSplitPaneResponse_Status status;
+
+@property(nonatomic, readwrite) BOOL hasStatus;
+@property(nonatomic, readwrite, copy, null_resettable) NSString *sessionId;
+/** Test to see if @c sessionId has been set. */
+@property(nonatomic, readwrite) BOOL hasSessionId;
+
+@end
+
 NS_ASSUME_NONNULL_END
 CF_EXTERN_C_END

sources/proto/Api.pbobjc.m

@@ -102,6 +102,7 @@ BOOL ITMNotificationType_IsValidValue(int32_t value__) {
 @dynamic hasListSessionsRequest, listSessionsRequest;
 @dynamic hasSendTextRequest, sendTextRequest;
 @dynamic hasCreateTabRequest, createTabRequest;
+@dynamic hasSplitPaneRequest, splitPaneRequest;
 typedef struct ITMRequest__storage_ {
   uint32_t _has_storage_[1];
@@ -114,6 +115,7 @@ typedef struct ITMRequest__storage_ {
   ITMListSessionsRequest *listSessionsRequest;
   ITMSendTextRequest *sendTextRequest;
   ITMCreateTabRequest *createTabRequest;
+  ITMSplitPaneRequest *splitPaneRequest;
   int64_t id_p;
 } ITMRequest__storage_;
@@ -213,6 +215,15 @@ typedef struct ITMRequest__storage_ {
         .flags = GPBFieldOptional,
         .dataType = GPBDataTypeMessage,
       },
+      {
+        .name = "splitPaneRequest",
+        .dataTypeSpecific.className = GPBStringifySymbol(ITMSplitPaneRequest),
+        .number = ITMRequest_FieldNumber_SplitPaneRequest,
+        .hasIndex = 10,
+        .offset = (uint32_t)offsetof(ITMRequest__storage_, splitPaneRequest),
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeMessage,
+      },
     };
     GPBDescriptor *localDescriptor =
         [GPBDescriptor allocDescriptorForClass:[ITMRequest class]
@@ -244,6 +255,7 @@ typedef struct ITMRequest__storage_ {
 @dynamic hasListSessionsResponse, listSessionsResponse;
 @dynamic hasSendTextResponse, sendTextResponse;
 @dynamic hasCreateTabResponse, createTabResponse;
+@dynamic hasSplitPaneResponse, splitPaneResponse;
 @dynamic hasNotification, notification;
 typedef struct ITMResponse__storage_ {
@@ -257,6 +269,7 @@ typedef struct ITMResponse__storage_ {
   ITMListSessionsResponse *listSessionsResponse;
   ITMSendTextResponse *sendTextResponse;
   ITMCreateTabResponse *createTabResponse;
+  ITMSplitPaneResponse *splitPaneResponse;
   ITMNotification *notification;
   int64_t id_p;
 } ITMResponse__storage_;
@@ -357,11 +370,20 @@ typedef struct ITMResponse__storage_ {
         .flags = GPBFieldOptional,
         .dataType = GPBDataTypeMessage,
       },
+      {
+        .name = "splitPaneResponse",
+        .dataTypeSpecific.className = GPBStringifySymbol(ITMSplitPaneResponse),
+        .number = ITMResponse_FieldNumber_SplitPaneResponse,
+        .hasIndex = 10,
+        .offset = (uint32_t)offsetof(ITMResponse__storage_, splitPaneResponse),
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeMessage,
+      },
       {
         .name = "notification",
         .dataTypeSpecific.className = GPBStringifySymbol(ITMNotification),
         .number = ITMResponse_FieldNumber_Notification,
-        .hasIndex = 10,
+        .hasIndex = 11,
         .offset = (uint32_t)offsetof(ITMResponse__storage_, notification),
         .flags = GPBFieldOptional,
         .dataType = GPBDataTypeMessage,
@@ -2781,6 +2803,208 @@ BOOL ITMCreateTabResponse_Status_IsValidValue(int32_t value__) {
   }
 }
+#pragma mark - ITMSplitPaneRequest
+
+@implementation ITMSplitPaneRequest
+
+@dynamic hasSession, session;
+@dynamic hasSplitDirection, splitDirection;
+@dynamic hasBefore, before;
+@dynamic hasProfileName, profileName;
+
+typedef struct ITMSplitPaneRequest__storage_ {
+  uint32_t _has_storage_[1];
+  ITMSplitPaneRequest_SplitDirection splitDirection;
+  NSString *session;
+  NSString *profileName;
+} ITMSplitPaneRequest__storage_;
+
+// This method is threadsafe because it is initially called
+// in +initialize for each subclass.
++ (GPBDescriptor *)descriptor {
+  static GPBDescriptor *descriptor = nil;
+  if (!descriptor) {
+    static GPBMessageFieldDescription fields[] = {
+      {
+        .name = "session",
+        .dataTypeSpecific.className = NULL,
+        .number = ITMSplitPaneRequest_FieldNumber_Session,
+        .hasIndex = 0,
+        .offset = (uint32_t)offsetof(ITMSplitPaneRequest__storage_, session),
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeString,
+      },
+      {
+        .name = "splitDirection",
+        .dataTypeSpecific.enumDescFunc = ITMSplitPaneRequest_SplitDirection_EnumDescriptor,
+        .number = ITMSplitPaneRequest_FieldNumber_SplitDirection,
+        .hasIndex = 1,
+        .offset = (uint32_t)offsetof(ITMSplitPaneRequest__storage_, splitDirection),
+        .flags = (GPBFieldFlags)(GPBFieldOptional | GPBFieldHasEnumDescriptor),
+        .dataType = GPBDataTypeEnum,
+      },
+      {
+        .name = "before",
+        .dataTypeSpecific.className = NULL,
+        .number = ITMSplitPaneRequest_FieldNumber_Before,
+        .hasIndex = 2,
+        .offset = 3,  // Stored in _has_storage_ to save space.
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeBool,
+      },
+      {
+        .name = "profileName",
+        .dataTypeSpecific.className = NULL,
+        .number = ITMSplitPaneRequest_FieldNumber_ProfileName,
+        .hasIndex = 4,
+        .offset = (uint32_t)offsetof(ITMSplitPaneRequest__storage_, profileName),
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeString,
+      },
+    };
+    GPBDescriptor *localDescriptor =
+        [GPBDescriptor allocDescriptorForClass:[ITMSplitPaneRequest class]
+                                     rootClass:[ITMApiRoot class]
+                                          file:ITMApiRoot_FileDescriptor()
+                                        fields:fields
+                                    fieldCount:(uint32_t)(sizeof(fields) / sizeof(GPBMessageFieldDescription))
+                                   storageSize:sizeof(ITMSplitPaneRequest__storage_)
+                                         flags:GPBDescriptorInitializationFlag_None];
+    NSAssert(descriptor == nil, @"Startup recursed!");
+    descriptor = localDescriptor;
+  }
+  return descriptor;
+}
+
+@end
+
+#pragma mark - Enum ITMSplitPaneRequest_SplitDirection
+
+GPBEnumDescriptor *ITMSplitPaneRequest_SplitDirection_EnumDescriptor(void) {
+  static GPBEnumDescriptor *descriptor = NULL;
+  if (!descriptor) {
+    static const char *valueNames =
+        "Vertical\000Horizontal\000";
+    static const int32_t values[] = {
+        ITMSplitPaneRequest_SplitDirection_Vertical,
+        ITMSplitPaneRequest_SplitDirection_Horizontal,
+    };
+    GPBEnumDescriptor *worker =
+        [GPBEnumDescriptor allocDescriptorForName:GPBNSStringifySymbol(ITMSplitPaneRequest_SplitDirection)
+                                       valueNames:valueNames
+                                           values:values
+                                            count:(uint32_t)(sizeof(values) / sizeof(int32_t))
+                                     enumVerifier:ITMSplitPaneRequest_SplitDirection_IsValidValue];
+    if (!OSAtomicCompareAndSwapPtrBarrier(nil, worker, (void * volatile *)&descriptor)) {
+      [worker release];
+    }
+  }
+  return descriptor;
+}
+
+BOOL ITMSplitPaneRequest_SplitDirection_IsValidValue(int32_t value__) {
+  switch (value__) {
+    case ITMSplitPaneRequest_SplitDirection_Vertical:
+    case ITMSplitPaneRequest_SplitDirection_Horizontal:
+      return YES;
+    default:
+      return NO;
+  }
+}
+
+#pragma mark - ITMSplitPaneResponse
+
+@implementation ITMSplitPaneResponse
+
+@dynamic hasStatus, status;
+@dynamic hasSessionId, sessionId;
+
+typedef struct ITMSplitPaneResponse__storage_ {
+  uint32_t _has_storage_[1];
+  ITMSplitPaneResponse_Status status;
+  NSString *sessionId;
+} ITMSplitPaneResponse__storage_;
+
+// This method is threadsafe because it is initially called
+// in +initialize for each subclass.
++ (GPBDescriptor *)descriptor {
+  static GPBDescriptor *descriptor = nil;
+  if (!descriptor) {
+    static GPBMessageFieldDescription fields[] = {
+      {
+        .name = "status",
+        .dataTypeSpecific.enumDescFunc = ITMSplitPaneResponse_Status_EnumDescriptor,
+        .number = ITMSplitPaneResponse_FieldNumber_Status,
+        .hasIndex = 0,
+        .offset = (uint32_t)offsetof(ITMSplitPaneResponse__storage_, status),
+        .flags = (GPBFieldFlags)(GPBFieldOptional | GPBFieldHasEnumDescriptor),
+        .dataType = GPBDataTypeEnum,
+      },
+      {
+        .name = "sessionId",
+        .dataTypeSpecific.className = NULL,
+        .number = ITMSplitPaneResponse_FieldNumber_SessionId,
+        .hasIndex = 1,
+        .offset = (uint32_t)offsetof(ITMSplitPaneResponse__storage_, sessionId),
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeString,
+      },
+    };
+    GPBDescriptor *localDescriptor =
+        [GPBDescriptor allocDescriptorForClass:[ITMSplitPaneResponse class]
+                                     rootClass:[ITMApiRoot class]
+                                          file:ITMApiRoot_FileDescriptor()
+                                        fields:fields
+                                    fieldCount:(uint32_t)(sizeof(fields) / sizeof(GPBMessageFieldDescription))
+                                   storageSize:sizeof(ITMSplitPaneResponse__storage_)
+                                         flags:GPBDescriptorInitializationFlag_None];
+    NSAssert(descriptor == nil, @"Startup recursed!");
+    descriptor = localDescriptor;
+  }
+  return descriptor;
+}
+
+@end
+
+#pragma mark - Enum ITMSplitPaneResponse_Status
+
+GPBEnumDescriptor *ITMSplitPaneResponse_Status_EnumDescriptor(void) {
+  static GPBEnumDescriptor *descriptor = NULL;
+  if (!descriptor) {
+    static const char *valueNames =
+        "Ok\000SessionNotFound\000InvalidProfileName\000Ca"
+        "nnotSplit\000";
+    static const int32_t values[] = {
+        ITMSplitPaneResponse_Status_Ok,
+        ITMSplitPaneResponse_Status_SessionNotFound,
+        ITMSplitPaneResponse_Status_InvalidProfileName,
+        ITMSplitPaneResponse_Status_CannotSplit,
+    };
+    GPBEnumDescriptor *worker =
+        [GPBEnumDescriptor allocDescriptorForName:GPBNSStringifySymbol(ITMSplitPaneResponse_Status)
+                                       valueNames:valueNames
+                                           values:values
+                                            count:(uint32_t)(sizeof(values) / sizeof(int32_t))
+                                     enumVerifier:ITMSplitPaneResponse_Status_IsValidValue];
+    if (!OSAtomicCompareAndSwapPtrBarrier(nil, worker, (void * volatile *)&descriptor)) {
+      [worker release];
+    }
+  }
+  return descriptor;
+}
+
+BOOL ITMSplitPaneResponse_Status_IsValidValue(int32_t value__) {
+  switch (value__) {
+    case ITMSplitPaneResponse_Status_Ok:
+    case ITMSplitPaneResponse_Status_SessionNotFound:
+    case ITMSplitPaneResponse_Status_InvalidProfileName:
+    case ITMSplitPaneResponse_Status_CannotSplit:
+      return YES;
+    default:
+      return NO;
+  }
+}
+
 #pragma clang diagnostic pop