wip: gesture solution.

app/lib/models/solution.dart

@@ -0,0 +1,90 @@
+import 'dart:convert';
+
+import 'package:dde_gesture_manager/builder/provider_annotation.dart';
+import 'package:dde_gesture_manager/utils/helper.dart';
+
+@ProviderModel()
+class Solution {
+  @ProviderModelProp()
+  String? name;
+
+  @ProviderModelProp()
+  String? description;
+
+  @ProviderModelProp()
+  List<GestureProp>? gestures;
+
+  Solution.parse(solution) {
+    if (solution is String) solution = json.decode(solution);
+    assert(solution is Map);
+    name = solution['name'];
+    description = solution['desc'];
+    gestures = (solution['gestures'] as List? ?? []).map<GestureProp>((ele) => GestureProp.parse(ele)).toList();
+  }
+}
+
+enum Gesture {
+  swipe,
+  tap,
+  pinch,
+}
+
+enum GestureDirection {
+  up,
+  down,
+  left,
+  right,
+  pinch_in,
+  pinch_out,
+  none,
+}
+
+enum GestureType {
+  built_in,
+  commandline,
+  shortcut,
+}
+
+@ProviderModel()
+class GestureProp {
+  @ProviderModelProp()
+  Gesture? gesture;
+
+  @ProviderModelProp()
+  GestureDirection? direction;
+
+  @ProviderModelProp()
+  int? fingers;
+
+  @ProviderModelProp()
+  GestureType? type;
+
+  @ProviderModelProp()
+  String? command;
+
+  @ProviderModelProp()
+  String? remark;
+
+  @override
+  bool operator ==(Object other) =>
+      other is GestureProp &&
+      other.gesture == this.gesture &&
+      other.direction == this.direction &&
+      other.fingers == this.fingers;
+
+  @override
+  String toString() {
+    return 'GestureProp{gesture: $gesture, direction: $direction, fingers: $fingers, type: $type, command: $command, remark: $remark}';
+  }
+
+  GestureProp.parse(props) {
+    if (props is String) props = json.decode(props);
+    assert(props is Map);
+    gesture = H.getGestureByName(props['gesture']);
+    direction = H.getGestureDirectionByName(props['direction']);
+    fingers = props['fingers'];
+    type = H.getGestureTypeByName(props['type']);
+    command = props['command'];
+    remark = props['remark'];
+  }
+}