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  1. @slightfoot slightfoot created this gist Jun 19, 2024.
    35 changes: 35 additions & 0 deletions drag_scroll_behaviour.dart
    Original file line number Diff line number Diff line change
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    // MIT License
    //
    // Copyright (c) 2024 Simon Lightfoot
    //
    // Permission is hereby granted, free of charge, to any person obtaining a copy
    // of this software and associated documentation files (the "Software"), to deal
    // in the Software without restriction, including without limitation the rights
    // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    // copies of the Software, and to permit persons to whom the Software is
    // furnished to do so, subject to the following conditions:
    //
    // The above copyright notice and this permission notice shall be included in all
    // copies or substantial portions of the Software.
    //
    // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    // SOFTWARE.
    //

    /// Adds Drag scroll to desktop and mobile deployments
    /// Use with MaterialApp(
    /// scrollBehavior: DragScrollBehaviour(),
    /// );
    class DragScrollBehaviour extends MaterialScrollBehavior {
    @override
    final dragDevices = {
    PointerDeviceKind.touch,
    PointerDeviceKind.mouse,
    PointerDeviceKind.trackpad,
    };
    }