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MudGallery (#26)
* MudGallery initialize * Finalize * Animation & Cleanup * Docs
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‎CodeBeam.MudExtensions/Components/Gallery/MudGallery.razor‎

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@namespace MudExtensions
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@inherits MudComponentBase
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@using MudExtensions.Enums
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<CascadingValue Value="this" IsFixed="true">
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<div class="@Classname" style="@Style">
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@foreach (var item in ImageSource)
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{
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<MudImage Style="@ImageStylename" Src="@item" @onclick="@(() => ImageClick(item))" ObjectFit="ObjectFit.Cover" />
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}
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</div>
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@if (_visible)
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{
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<div class="mud-overlay" style="background-color: rgba(0, 0, 0, 0.8); z-index: 2000" @onclick="@(EnableBackdropClick ? () => ChangeMenu(false) : null)" @onclick:stopPropagation>
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<MudContainer Class="relative pa-0" MaxWidth="MaxWidth" Style="background-color: rgba(20, 20, 20, 0.9); top: 0; bottom: 0; height: 100%;">
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<div class="d-flex absolute mud-gallery-selected-toolbox gallery-toolbox-top">
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@ToolboxTopContent
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</div>
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<div class="@($"d-flex align-center justify-center mud-gallery-ani-{_animateGuid.ToString()}")" style="background-color: rgba(var(--mud-palette-background-grey), 0.9); height: 100%; max-height: 100%; overflow: auto">
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<MudImage Class="@ClassSelectedImage" Style="@StyleSelectedImage" Src="@_selectedSrc" Fluid="true" />
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</div>
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<div class="d-flex justify-center absolute mud-gallery-selected-toolbox gallery-toolbox-bottom">
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@ToolboxBottomContent
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</div>
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@if (ShowToolboxNavigationButtons == true)
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{
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<MudIconButton Class="absolute white-text" Size="Size.Large" DisableRipple="true" Icon="@Icons.Outlined.ChevronLeft" Style="bottom: 0px; top: 0px; left: 4px;" OnClick="@(() => SetAdjacentImage(-1))" />
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<MudIconButton Class="absolute white-text" Size="Size.Large" DisableRipple="true" Icon="@Icons.Outlined.ChevronRight" Style="bottom: 0px; top: 0px; right: 4px;" OnClick="@(() => SetAdjacentImage(1))" />
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}
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@if (ShowToolboxCloseButton == true)
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{
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<MudIconButton Class="absolute white-text" DisableRipple="true" Icon="@Icons.Outlined.Close" Style="top: 4px; right: 0px;" OnClick="@(() => ChangeMenu(false))" />
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}
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</MudContainer>
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</div>
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}
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</CascadingValue>
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@if (EnableAnimation == true)
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{
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<MudAnimate @ref="_animate" Selector="@($".mud-gallery-ani-{_animateGuid.ToString()}")" AnimationType="Enums.AnimationType.Fade" Value="1" Duration="0.3" />
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}
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‎CodeBeam.MudExtensions/Components/Gallery/MudGallery.razor.cs‎

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using CodeBeam.MudExtensions.Utilities;
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using Microsoft.AspNetCore.Components;
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using MudBlazor;
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using MudBlazor.Extensions;
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using MudBlazor.Utilities;
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using MudExtensions.Enums;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Security.Cryptography.X509Certificates;
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using System.Text;
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using System.Threading.Tasks;
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using static MudBlazor.Colors;
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namespace MudExtensions
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{
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public partial class MudGallery : MudComponentBase
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{
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MudAnimate _animate;
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Guid _animateGuid = Guid.NewGuid();
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bool _visible = false;
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DialogOptions _dialogOptions = new() { NoHeader = true, FullWidth = true, MaxWidth = MaxWidth.Large, CloseOnEscapeKey = true };
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string _selectedSrc;
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protected string Classname => new CssBuilder("d-flex flex-wrap")
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.AddClass(Class)
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.Build();
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protected string ImageStylename => new StyleBuilder()
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.AddStyle("width", $"{100 / ItemPerLine}%")
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.AddStyle("aspect-ratio", "1 / 1")
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.Build();
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[Parameter]
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public string ClassSelectedImage { get; set; }
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[Parameter]
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public string StyleSelectedImage { get; set; }
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/// <summary>
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/// Sets how many images show per gallery line. Default is 3.
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/// </summary>
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[Parameter]
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public int ItemPerLine { get; set; } = 3;
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/// <summary>
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/// If true, closes selected image on backdrop click. Default is true.
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/// </summary>
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[Parameter]
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public bool EnableBackdropClick { get; set; } = true;
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/// <summary>
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/// If true, disables the default animation on image changing.
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/// </summary>
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[Parameter]
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public bool EnableAnimation { get; set; } = true;
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[Parameter]
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public bool ShowToolboxCloseButton { get; set; } = true;
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[Parameter]
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public bool ShowToolboxNavigationButtons { get; set; } = true;
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/// <summary>
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/// The max width for selected image. The remaining space fills with an overlay. Default is Medium.
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/// </summary>
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[Parameter]
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public MaxWidth MaxWidth { get; set; } = MaxWidth.Medium;
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/// <summary>
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/// Renderfragment for top section on selected view.
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/// </summary>
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[Parameter]
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public RenderFragment ToolboxTopContent { get; set; }
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/// <summary>
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/// Renderfragment for bottom section on selected view.
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/// </summary>
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[Parameter]
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public RenderFragment ToolboxBottomContent { get; set; }
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/// <summary>
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/// Gallery's image source.
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/// </summary>
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[Parameter]
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public List<string> ImageSource { get; set; }
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protected void ImageClick(string src)
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{
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_selectedSrc = src;
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_visible = true;
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StateHasChanged();
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}
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public void ChangeMenu(bool visible)
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{
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_visible = visible;
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}
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protected async Task SetAdjacentImage(int count)
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{
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if (_selectedSrc == null)
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{
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return;
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}
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int index = ImageSource.IndexOf(_selectedSrc);
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if (ImageSource.Count <= index + count || index + count < 0)
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{
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return;
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}
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if (EnableAnimation == true)
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{
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await _animate.Refresh();
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}
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_selectedSrc = ImageSource[index + count];
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}
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public int GetSelectedImageIndex()
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{
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return ImageSource.IndexOf(_selectedSrc);
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}
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}
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}

‎CodeBeam.MudExtensions/Styles/Components/_gallery.scss‎

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.mud-gallery-selected-toolbox {
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left: 0;
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right: 0;
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height: 56px;
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width: 100%;
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background-color: rgba(0, 0, 0, 0.6);
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&.gallery-toolbox-top {
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top: 0;
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}
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&.gallery-toolbox-bottom {
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bottom: 0;
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}
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}

‎CodeBeam.MudExtensions/Styles/MudExtensions.css‎

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.mud-page {
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.mud-gallery-selected-toolbox {
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left: 0;
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right: 0;
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height: 56px;
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width: 100%;
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background-color: rgba(0, 0, 0, 0.6); }
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.mud-gallery-selected-toolbox.gallery-toolbox-top {
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top: 0; }
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.mud-gallery-selected-toolbox.gallery-toolbox-bottom {
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bottom: 0; }
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.mud-page {
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display: grid;
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box-sizing: border-box;
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width: 100%; }

‎CodeBeam.MudExtensions/Styles/MudExtensions.min.css‎

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‎CodeBeam.MudExtensions/Styles/MudExtensions.scss‎

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@import 'components/_page';
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@import 'components/_gallery';
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@import 'components/_page';
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@import 'components/_stepper';
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@import 'components/_wheel';

‎CodeBeam.MudExtensions/wwwroot/MudExtensions.min.css‎

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‎ComponentViewer/Pages/Components/ApiPage.razor‎

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</MudTable>
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</ExampleCard>
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<ExampleCard Title="Api - MudGallery" HasExpansionPanel="true">
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<MudTable Items="@(typeof(MudGallery).GetProperties().OrderBy(x => x.Name).ToList())">
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<HeaderContent>
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<MudTh>Name</MudTh>
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<MudTh>Type</MudTh>
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</HeaderContent>
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<RowTemplate>
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<MudTd>@context.Name</MudTd>
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<MudTd>@context.PropertyType.ToString()</MudTd>
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</RowTemplate>
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</MudTable>
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</ExampleCard>
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<ExampleCard Title="Api - MudLoading" HasExpansionPanel="true">
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<MudTable Items="@(typeof(MudLoading).GetProperties().OrderBy(x => x.Name).ToList())">
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<HeaderContent>

‎ComponentViewer/Pages/Components/GalleryPage.razor‎

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@page "/mudgallery"
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@using MudBlazor.Extensions
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@using MudBlazor.Utilities
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<ExamplePage Title="MudGallery">
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<ExampleCard Title="Usage" Description="">
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<MudGrid>
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<MudItem xs="12" sm="8" Class="d-flex align-center flex-wrap">
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<MudGallery @ref="_gallery" ImageSource="_source" ItemPerLine="_itemPerLine" EnableBackdropClick="_enableBackdropClick"
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ShowToolboxCloseButton="_showToolboxCloseButton" ShowToolboxNavigationButtons="_showToolboxNavigationButtons"
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MaxWidth="_maxWidth" StyleSelectedImage="@ImageStyle" EnableAnimation="_enableAnimation">
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<ToolboxTopContent>
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<MudText Class="white-text pa-4">Image @(_gallery.GetSelectedImageIndex() + 1) - Description</MudText>
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</ToolboxTopContent>
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<ToolboxBottomContent>
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<MudIconButton Class="white-text" Icon="@Icons.Outlined.Edit" />
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<MudIconButton Class="white-text" Icon="@Icons.Outlined.RotateRight" OnClick="ArrangeRotateValue" />
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@if (_showToolboxCloseButton == false)
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{
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<MudIconButton Class="white-text" Icon="@Icons.Outlined.Close" OnClick="@(() => _gallery.ChangeMenu(false))" />
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}
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</ToolboxBottomContent>
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</MudGallery>
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</MudItem>
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<MudItem xs="12" sm="4">
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<MudStack Spacing="4">
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<MudNumericField @bind-Value="_itemPerLine" Label="Item Per Line" />
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<MudSwitch @bind-Checked="_enableBackdropClick" Color="Color.Primary" Label="Enable Backdrop Click" />
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<MudSwitch @bind-Checked="_showToolboxCloseButton" Color="Color.Primary" Label="Toolbox Close Button" />
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<MudSwitch @bind-Checked="_showToolboxNavigationButtons" Color="Color.Primary" Label="Toolbox Navigation Buttons" />
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<MudSwitch @bind-Checked="_enableAnimation" Color="Color.Primary" Label="Animation" />
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<MudSelect @bind-Value="_maxWidth" Variant="Variant.Outlined" Label="MaxWidth" Margin="Margin.Dense" Dense="true">
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@foreach (MaxWidth item in Enum.GetValues<MaxWidth>())
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{
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<MudSelectItem Value="item">@item.ToDescriptionString()</MudSelectItem>
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}
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</MudSelect>
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</MudStack>
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</MudItem>
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</MudGrid>
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</ExampleCard>
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</ExamplePage>
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@code{
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MudGallery _gallery;
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int _itemPerLine = 3;
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bool _enableBackdropClick = true;
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bool _showToolboxCloseButton = true;
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bool _showToolboxNavigationButtons = true;
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bool _enableAnimation = true;
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int _rotateValue = 0;
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MaxWidth _maxWidth = MaxWidth.Medium;
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private string ImageStyle => new StyleBuilder()
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.AddStyle("transform", $"rotate({_rotateValue}deg)")
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.Build();
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List<string> _source = new() { "https://cdn.pixabay.com/photo/2022/09/17/08/47/piano-7460435_960_720.jpg",
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"https://cdn.pixabay.com/photo/2017/07/29/16/10/windows-2551954_960_720.jpg",
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"https://mudblazor.com/images/castle.jpg",
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"https://cdn.pixabay.com/photo/2022/08/01/13/20/lily-of-the-valley-7358144__340.jpg",
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"https://cdn.pixabay.com/photo/2022/03/31/01/05/bird-7102006__340.jpg",
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"https://cdn.pixabay.com/photo/2019/06/05/08/37/dog-4253238__340.jpg",
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"https://cdn.pixabay.com/photo/2022/07/27/03/23/deer-7347041_960_720.jpg",
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"https://cdn.pixabay.com/photo/2022/03/31/11/28/snakes-head-fritillary-7102810_960_720.jpg",
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"https://cdn.pixabay.com/photo/2022/10/07/09/06/bridge-7504605_960_720.jpg",
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"https://cdn.pixabay.com/photo/2022/08/24/05/44/duck-7406987_960_720.jpg",
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"https://cdn.pixabay.com/photo/2022/10/05/20/43/hyacinth-macaw-7501470_960_720.jpg" };
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private void ArrangeRotateValue()
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{
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if (_rotateValue == 270)
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{
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_rotateValue = 0;
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return;
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}
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_rotateValue += 90;
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}
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}

‎ComponentViewer/Pages/Index.razor‎

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Description="A basic API list for all components." />
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</MudItem>
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<MudItem xs="12" sm="6" md="4" lg="3" xl="2">
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<ComponentCard Title="MudGallery"
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Description="Mobile friendly image gallery component." />
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</MudItem>
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<MudItem xs="12" sm="6" md="4" lg="3" xl="2">
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<ComponentCard Title="MudAnimate"
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Description="A revolutionary next generation animate component." />

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