3d7ba328c0
* * style names * bug touch * bug last release * * More cleanup Co-authored-by: Santiago Cattaneo <santiago@rd-its.com>
113 lines
3.8 KiB
C#
113 lines
3.8 KiB
C#
using Microsoft.AspNetCore.Components;
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using Microsoft.AspNetCore.Components.Web;
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using Microsoft.JSInterop;
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namespace BlazorReorderList;
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public class ReorderService<TItem> : IReorderService<TItem>
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{
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public bool isDragging { get; set; } = false;
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public TItem? selected { get; set; } = default;
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public List<TItem>? originItems { get; set; }
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public int elemIndex { get; set; } = -1;
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public point elemClickPosition { get; set; } = new point(0, 0);
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private Lazy<Task<IJSObjectReference>>? _moduleTask;
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private bool _copy = false;
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public ReorderService(IJSRuntime jsRuntime)
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{
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_moduleTask = new(() => jsRuntime.InvokeAsync<IJSObjectReference>(
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"import", "./_content/BlazorReorderList/ReorderJsInterop.js").AsTask());
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}
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public ReorderService() { }
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public ReorderService<TItem> InitService(IJSRuntime jsRuntime)
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{
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_moduleTask = new(() => jsRuntime.InvokeAsync<IJSObjectReference>(
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"import", "./_content/BlazorReorderList/ReorderJsInterop.js").AsTask());
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return this;
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}
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public void Set(List<TItem> list, TItem item, int index, point clickPoint, bool copy)
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{
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isDragging = true;
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originItems = list;
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selected = item;
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elemIndex = index;
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elemClickPosition = clickPoint;
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_copy = copy;
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}
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// whe copy only the first time
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public bool isCopy()
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{
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var tempcopy = _copy;
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_copy = false;
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return tempcopy;
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}
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public void Reset()
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{
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isDragging = false;
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originItems = default;
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selected = default;
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elemClickPosition = new point(0, 0);
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_copy = false;
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}
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public async ValueTask initEvents(DotNetObjectReference<Reorder<TItem>> dotNetInstance)
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{
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if (_moduleTask == null) throw new Exception("Blazor Reorder: JS module not initializated");
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var module = await _moduleTask.Value;
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await module.InvokeVoidAsync("initEvents", dotNetInstance);
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}
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public async ValueTask removeEvents(DotNetObjectReference<Reorder<TItem>> dotNetInstance)
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{
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if (_moduleTask == null) throw new Exception("Blazor Reorder: JS module not initializated");
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var module = await _moduleTask.Value;
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await module.InvokeVoidAsync("removeEvents", dotNetInstance);
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}
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public async ValueTask<int> getWidth(ElementReference el)
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{
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if (_moduleTask == null) throw new Exception("Blazor Reorder: JS module not initializated");
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var module = await _moduleTask.Value;
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return await module.InvokeAsync<int>("getWidth", el);
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}
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public async ValueTask<point> getPosition(ElementReference el)
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{
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if (_moduleTask == null) throw new Exception("Blazor Reorder: JS module not initializated");
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var module = await _moduleTask.Value;
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return await module.InvokeAsync<point>("getPosition", el);
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}
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public async ValueTask<point> getPoint(double pageX, double pageY, double clientX, double clientY)
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{
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if (_moduleTask == null) throw new Exception("Blazor Reorder: JS module not initializated");
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var module = await _moduleTask.Value;
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return await module.InvokeAsync<point>("getPoint", pageX, pageY, clientX, clientY);
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}
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public async ValueTask<clientRect> getClientRect(ElementReference el)
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{
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if (_moduleTask == null) throw new Exception("Blazor Reorder: JS module not initializated");
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var module = await _moduleTask.Value;
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return await module.InvokeAsync<clientRect>("getClientRect", el);
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}
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public async ValueTask DisposeAsync()
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{
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if (_moduleTask == null) throw new Exception("Blazor Reorder: JS module not initializated");
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if (_moduleTask.IsValueCreated)
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{
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var module = await _moduleTask.Value;
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await module.DisposeAsync();
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GC.SuppressFinalize(this);
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}
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}
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}
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