feat: support libinput 1.27.0 or later

- Add `libinput_1_27_0_or_later?` method to `LibinputCommand`
- Add `parse_line_1_27_0_or_later` method to `LibinputGestureParser`

Author: iberianpig

lib/fusuma/libinput_command.rb

@@ -20,6 +20,11 @@ def new_cli_option_available?
       Gem::Version.new(version) >= Gem::Version.new(NEW_CLI_OPTION_VERSION)
     end
 
+    # @return [Boolean]
+    def libinput_1_27_0_or_later?
+      Gem::Version.new(version) >= Gem::Version.new("1.27.0")
+    end
+
     # @return [String]
     def version
       # version_command prints "1.6.3\n"

lib/fusuma/plugin/parsers/libinput_gesture_parser.rb

@@ -2,6 +2,7 @@
 
 require_relative "../events/records/record"
 require_relative "../events/records/gesture_record"
+require_relative "../../libinput_command"
 
 module Fusuma
   module Plugin
@@ -29,6 +30,20 @@ def parse_record(record)
         private
 
         def parse_libinput(line)
+          if libinput_1_27_0_or_later?
+            parse_line_1_27_0_or_later(line)
+          else
+            parse_line(line)
+          end
+        end
+
+        def libinput_1_27_0_or_later?
+          return @libinput_1_27_0_or_later if defined?(@libinput_1_27_0_or_later)
+
+          @libinput_1_27_0_or_later = Inputs::LibinputCommandInput.new.command.libinput_1_27_0_or_later?
+        end
+
+        def parse_line(line)
           _device, event_name, _time, other = line.strip.split(nil, 4)
           finger, other = other.split(nil, 2)
 
@@ -39,6 +54,22 @@ def parse_libinput(line)
           [gesture, status, finger, delta]
         end
 
+        def parse_line_1_27_0_or_later(line)
+          _device, event_name, other = line.strip.split(nil, 3)
+
+          if other[0] != "+"
+            _seq, other = other.split(nil, 2)
+          end
+
+          _time, finger, other = other.split(nil, 3)
+
+          gesture, status = *detect_gesture(event_name)
+
+          status = "cancelled" if gesture == "hold" && status == "end" && other == "cancelled"
+          delta = parse_delta(other)
+          [gesture, status, finger, delta]
+        end
+
         def detect_gesture(event_name)
           event_name =~ /GESTURE_(SWIPE|PINCH|HOLD)_(BEGIN|UPDATE|END)/
           gesture = Regexp.last_match(1).downcase

spec/fusuma/plugin/parsers/libinput_gesture_parser_spec.rb

@@ -2,7 +2,7 @@
 
 require "spec_helper"
 require "./lib/fusuma/plugin/parsers/parser"
-require "./lib/fusuma/plugin/events/event"
+require "./lib/fusuma/plugin/inputs/input"
 
 module Fusuma
   module Plugin
@@ -36,39 +36,128 @@ module Parsers
             it { expect(parser.parse(event)).to eq event }
           end
 
-          context "with libinput_command_input event" do
-            let(:event) { Events::Event.new(tag: "libinput_command_input", record: record) }
+          context "with libinput version 1.27.0 or later" do
+            before do
+              allow_any_instance_of(LibinputCommand).to receive(:libinput_1_27_0_or_later?).and_return(true)
+            end
+
             context "with swipe gestures" do
-              # event10  GESTURE_SWIPE_BEGIN     +0.728s       3
-              # event10  GESTURE_SWIPE_UPDATE    +0.948s       3  0.23/ 0.00 ( 0.29/ 0.00 unaccelerated)
-              # event10  GESTURE_SWIPE_END       +0.989s       3
-              let(:record) { "event10  GESTURE_SWIPE_BEGIN     +0.728s       3" }
-              it { expect(parser.parse(event).record).to be_a Events::Records::GestureRecord }
-              it { expect(parser.parse(event).record.status).to eq "begin" }
+              before do
+                @debug_events = <<~EVENTS
+                  event4   GESTURE_SWIPE_BEGIN         +19.410s  3
+                  event4   GESTURE_SWIPE_UPDATE        +19.410s  3 19.02/ 1.00 ( 4.17/ 0.22 unaccelerated)
+                  event4   GESTURE_SWIPE_UPDATE      2 +19.417s  3 21.24/ 0.00 ( 4.61/ 0.00 unaccelerated)
+                  event4   GESTURE_SWIPE_UPDATE      3 +19.424s  3  6.36/-0.22 ( 6.36/-0.22 unaccelerated)
+                  event4   GESTURE_SWIPE_END           +19.614s  3
+                EVENTS
+                  .split("\n")
+              end
+
+              let(:event) {
+                -> {
+                  record = @debug_events.shift
+                  Events::Event.new(tag: "libinput_command_input", record: record)
+                }
+              }
+
+              it "has a gesture record" do
+                expect(parser.parse(event.call).record).to be_a Events::Records::GestureRecord
+              end
+
+              it "has a gesture record that it has a status" do
+                expect(parser.parse(event.call).record.status).to eq "begin"
+                expect(parser.parse(event.call).record.status).to eq "update"
+                expect(parser.parse(event.call).record.status).to eq "update"
+                expect(parser.parse(event.call).record.status).to eq "update"
+                expect(parser.parse(event.call).record.status).to eq "end"
+              end
+
+              it "has a gesture record that it has finger num" do
+                expect(parser.parse(event.call).record.finger).to eq 3
+                expect(parser.parse(event.call).record.finger).to eq 3
+                expect(parser.parse(event.call).record.finger).to eq 3
+                expect(parser.parse(event.call).record.finger).to eq 3
+                expect(parser.parse(event.call).record.finger).to eq 3
+              end
             end
+          end
 
-            context "with hold gestures" do
-              # -event10  GESTURE_HOLD_BEGIN      +2.125s       3
-              # event10  GESTURE_HOLD_END        +3.274s       3
-              # event10  GESTURE_HOLD_BEGIN      +5.573s       4
-              # event10  GESTURE_HOLD_END        +6.462s       4 cancelled
-              context "with begin" do
-                let(:record) { "-event10  GESTURE_HOLD_BEGIN      +2.125s       3" }
-                it { expect(parser.parse(event).record).to be_a Events::Records::GestureRecord }
-                it { expect(parser.parse(event).record.status).to eq "begin" }
+          context "with libinput version 1.26.0 or earlier" do
+            before do
+              allow_any_instance_of(LibinputCommand).to receive(:libinput_1_27_0_or_later?).and_return(false)
+            end
+
+            context "with swipe gestures" do
+              before do
+                @debug_events = <<~EVENTS
+                  event10  GESTURE_SWIPE_BEGIN     +0.728s       3
+                  event10  GESTURE_SWIPE_UPDATE    +0.948s       3  0.23/ 0.00 ( 0.29/ 0.00 unaccelerated)
+                  event10  GESTURE_SWIPE_END       +0.989s       3
+                EVENTS
+                  .split("\n")
               end
-              context "with end" do
-                let(:record) { " event10  GESTURE_HOLD_END        +3.274s       3" }
-                it { expect(parser.parse(event).record).to be_a Events::Records::GestureRecord }
-                it { expect(parser.parse(event).record.status).to eq "end" }
+
+              let(:event) {
+                -> {
+                  record = @debug_events.shift
+                  Events::Event.new(tag: "libinput_command_input", record: record)
+                }
+              }
+
+              it "has a gesture record" do
+                expect(parser.parse(event.call).record).to be_a Events::Records::GestureRecord
+              end
+
+              it "has a gesture record that it has a status" do
+                expect(parser.parse(event.call).record.status).to eq "begin"
+                expect(parser.parse(event.call).record.status).to eq "update"
+                expect(parser.parse(event.call).record.status).to eq "end"
               end
-              context "with end(cancelled)" do
-                let(:record) { " event10  GESTURE_HOLD_END        +6.462s       4 cancelled" }
-                it { expect(parser.parse(event).record).to be_a Events::Records::GestureRecord }
-                it { expect(parser.parse(event).record.status).to eq "cancelled" }
+
+              it "has a gesture record that it has finger num" do
+                expect(parser.parse(event.call).record.finger).to eq 3
+                expect(parser.parse(event.call).record.finger).to eq 3
+                expect(parser.parse(event.call).record.finger).to eq 3
               end
             end
           end
+
+          context "with hold gestures" do
+            before do
+              @debug_events = <<~EVENTS
+                -event10  GESTURE_HOLD_BEGIN      +2.125s       3
+                event10  GESTURE_HOLD_END        +3.274s       3
+                event10  GESTURE_HOLD_BEGIN      +5.573s       4
+                event10  GESTURE_HOLD_END        +6.462s       4 cancelled
+              EVENTS
+                .split("\n")
+            end
+
+            let(:event) {
+              -> {
+                record = @debug_events.shift
+                Events::Event.new(tag: "libinput_command_input", record: record)
+              }
+            }
+
+            it "has a gesture record" do
+              expect(parser.parse(event.call).record).to be_a Events::Records::GestureRecord
+            end
+
+            it "has a gesture record that it has a status" do
+              expect(parser.parse(event.call).record.status).to eq "begin"
+              expect(parser.parse(event.call).record.status).to eq "end"
+              expect(parser.parse(event.call).record.status).to eq "begin"
+              expect(parser.parse(event.call).record.status).to eq "cancelled"
+            end
+
+            it "has a gesture record that it has finger num" do
+              expect(parser.parse(event.call).record.finger).to eq 3
+              expect(parser.parse(event.call).record.finger).to eq 3
+              expect(parser.parse(event.call).record.finger).to eq 4
+              expect(parser.parse(event.call).record.finger).to eq 4
+            end
+          end
         end
       end
     end