edit

2026-04-01 20:48:48 +03:00
commit a62252a181
8 changed files with 318 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.vs/
+**/bin/
+**/obj/
--- a/CLITPdfReader.slnx
+++ b/CLITPdfReader.slnx
@@ -0,0 +1,3 @@
+<Solution>
+  <Project Path="CLITPdfReader/CLITPdfReader.csproj" />
+</Solution>
--- a/CLITPdfReader/App.xaml
+++ b/CLITPdfReader/App.xaml
@@ -0,0 +1,7 @@
+<Application x:Class="CLITPdfReader.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <Application.Resources>
+
+    </Application.Resources>
+</Application>
--- a/CLITPdfReader/App.xaml.cs
+++ b/CLITPdfReader/App.xaml.cs
@@ -0,0 +1,22 @@
+using System.IO;
+using System.Windows;
+
+namespace CLITPdfReader;
+
+public partial class App : Application
+{
+    protected override void OnStartup(StartupEventArgs e)
+    {
+        base.OnStartup(e);
+
+        string? initialPdfPath = null;
+
+        if (e.Args.Length > 0 && File.Exists(e.Args[0]))
+        {
+            initialPdfPath = e.Args[0];
+        }
+
+        MainWindow = new MainWindow(initialPdfPath);
+        MainWindow.Show();
+    }
+}
--- a/CLITPdfReader/AssemblyInfo.cs
+++ b/CLITPdfReader/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly:ThemeInfo(
+    ResourceDictionaryLocation.None,            //where theme specific resource dictionaries are located
+                                                //(used if a resource is not found in the page,
+                                                // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly   //where the generic resource dictionary is located
+                                                //(used if a resource is not found in the page,
+                                                // app, or any theme specific resource dictionaries)
+)]
--- a/CLITPdfReader/CLITPdfReader.csproj
+++ b/CLITPdfReader/CLITPdfReader.csproj
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net10.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3856.49" />
+  </ItemGroup>
+
+</Project>
--- a/CLITPdfReader/MainWindow.xaml
+++ b/CLITPdfReader/MainWindow.xaml
@@ -0,0 +1,78 @@
+<Window x:Class="CLITPdfReader.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:wv2="clr-namespace:Microsoft.Web.WebView2.Wpf;assembly=Microsoft.Web.WebView2.Wpf"
+        mc:Ignorable="d"
+        Title="CLIT PDF Reader"
+        Width="1200"
+        Height="800"
+        MinWidth="760"
+        MinHeight="520"
+        Loaded="Window_Loaded"
+        AllowDrop="True"
+        DragOver="Window_DragOver"
+        Drop="Window_Drop">
+    <DockPanel>
+        <Border DockPanel.Dock="Top"
+                Background="#FFF4F4F5"
+                BorderBrush="#FFE2E8F0"
+                BorderThickness="0,0,0,1">
+            <ToolBarTray>
+                <ToolBar FontSize="14"
+                         Padding="6,2"
+                         MinHeight="34">
+                    <Button Command="ApplicationCommands.Open"
+                            Padding="10,3"
+                            Margin="0,0,8,0">Открыть PDF</Button>
+                    <Button Command="ApplicationCommands.Print"
+                            Padding="10,3"
+                            Margin="0,0,16,0">Печать</Button>
+                    <Separator />
+                    <TextBlock VerticalAlignment="Center"
+                               FontWeight="SemiBold"
+                               Text="Файл:"
+                               Margin="12,0,8,0" />
+                    <TextBlock x:Name="CurrentFileTextBlock"
+                               VerticalAlignment="Center"
+                               TextTrimming="CharacterEllipsis"
+                               Width="760"
+                               Foreground="#FF334155"
+                               Text="PDF не открыт" />
+                </ToolBar>
+            </ToolBarTray>
+        </Border>
+
+        <StatusBar DockPanel.Dock="Bottom">
+            <StatusBarItem>
+                <TextBlock x:Name="StatusTextBlock" Text="Готово к открытию PDF." />
+            </StatusBarItem>
+        </StatusBar>
+
+        <Grid Background="#FFF8FAFC">
+            <wv2:WebView2 x:Name="PdfView" />
+
+            <Border x:Name="PlaceholderPanel"
+                    Background="#FFF8FAFC"
+                    Visibility="Visible">
+                <StackPanel MaxWidth="520"
+                            HorizontalAlignment="Center"
+                            VerticalAlignment="Center">
+                    <TextBlock x:Name="PlaceholderTitleTextBlock"
+                               Text="Откройте PDF-файл"
+                               FontSize="28"
+                               FontWeight="SemiBold"
+                               HorizontalAlignment="Center"
+                               Margin="0,0,0,12" />
+                    <TextBlock x:Name="PlaceholderDescriptionTextBlock"
+                               Text="Используйте кнопку «Открыть PDF», горячую клавишу Ctrl+O или просто перетащите файл в окно."
+                               TextAlignment="Center"
+                               Foreground="#FF475569"
+                               FontSize="15"
+                               TextWrapping="Wrap" />
+                </StackPanel>
+            </Border>
+        </Grid>
+    </DockPanel>
+</Window>
--- a/CLITPdfReader/MainWindow.xaml.cs
+++ b/CLITPdfReader/MainWindow.xaml.cs
@@ -0,0 +1,180 @@
+using System.IO;
+using System.Windows;
+using System.Windows.Input;
+using Microsoft.Web.WebView2.Core;
+using Microsoft.Win32;
+
+namespace CLITPdfReader;
+
+public partial class MainWindow : Window
+{
+    private const string AppTitle = "CLIT PDF Reader";
+    private readonly string? _initialPdfPath;
+    private bool _isBrowserReady;
+    private string? _currentPdfPath;
+
+    public MainWindow(string? initialPdfPath = null)
+    {
+        _initialPdfPath = initialPdfPath;
+        InitializeComponent();
+
+        CommandBindings.Add(new CommandBinding(ApplicationCommands.Open, OpenCommand_Executed));
+        CommandBindings.Add(new CommandBinding(ApplicationCommands.Print, PrintCommand_Executed, PrintCommand_CanExecute));
+        InputBindings.Add(new KeyBinding(ApplicationCommands.Open, new KeyGesture(Key.O, ModifierKeys.Control)));
+        InputBindings.Add(new KeyBinding(ApplicationCommands.Print, new KeyGesture(Key.P, ModifierKeys.Control)));
+    }
+
+    private async void Window_Loaded(object sender, RoutedEventArgs e)
+    {
+        await EnsureBrowserReadyAsync();
+
+        if (_isBrowserReady && !string.IsNullOrWhiteSpace(_initialPdfPath))
+        {
+            OpenPdf(_initialPdfPath);
+        }
+    }
+
+    private async Task<bool> EnsureBrowserReadyAsync()
+    {
+        if (_isBrowserReady)
+        {
+            return true;
+        }
+
+        try
+        {
+            await PdfView.EnsureCoreWebView2Async();
+            PdfView.CoreWebView2.Settings.HiddenPdfToolbarItems = CoreWebView2PdfToolbarItems.None;
+            _isBrowserReady = true;
+            UpdateCommandState();
+            return true;
+        }
+        catch (WebView2RuntimeNotFoundException)
+        {
+            ShowPlaceholder(
+                "WebView2 Runtime не найден",
+                "Установите Microsoft Edge WebView2 Runtime, после чего приложение сможет отображать PDF."
+            );
+            StatusTextBlock.Text = "Не найден Microsoft Edge WebView2 Runtime.";
+            return false;
+        }
+        catch (Exception ex)
+        {
+            ShowPlaceholder(
+                "Не удалось инициализировать просмотр",
+                ex.Message
+            );
+            StatusTextBlock.Text = "Ошибка инициализации WebView2.";
+            return false;
+        }
+    }
+
+    private async void OpenCommand_Executed(object sender, ExecutedRoutedEventArgs e)
+    {
+        if (!await EnsureBrowserReadyAsync())
+        {
+            return;
+        }
+
+        var openFileDialog = new OpenFileDialog
+        {
+            Title = "Выберите PDF-файл",
+            Filter = "PDF files (*.pdf)|*.pdf|All files (*.*)|*.*",
+            Multiselect = false
+        };
+
+        if (openFileDialog.ShowDialog(this) == true)
+        {
+            OpenPdf(openFileDialog.FileName);
+        }
+    }
+
+    private void PrintCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
+    {
+        e.CanExecute = _isBrowserReady && !string.IsNullOrWhiteSpace(_currentPdfPath);
+    }
+
+    private void PrintCommand_Executed(object sender, ExecutedRoutedEventArgs e)
+    {
+        if (!_isBrowserReady || PdfView.CoreWebView2 is null)
+        {
+            return;
+        }
+
+        PdfView.CoreWebView2.ShowPrintUI(CoreWebView2PrintDialogKind.Browser);
+    }
+
+    private void Window_DragOver(object sender, DragEventArgs e)
+    {
+        e.Effects = HasSinglePdfFile(e.Data) ? DragDropEffects.Copy : DragDropEffects.None;
+        e.Handled = true;
+    }
+
+    private async void Window_Drop(object sender, DragEventArgs e)
+    {
+        if (!HasSinglePdfFile(e.Data))
+        {
+            StatusTextBlock.Text = "Поддерживаются только PDF-файлы.";
+            return;
+        }
+
+        if (!await EnsureBrowserReadyAsync())
+        {
+            return;
+        }
+
+        var droppedFiles = e.Data.GetData(DataFormats.FileDrop) as string[];
+
+        if (droppedFiles is { Length: 1 })
+        {
+            OpenPdf(droppedFiles[0]);
+        }
+    }
+
+    private static bool HasSinglePdfFile(IDataObject dataObject)
+    {
+        if (!dataObject.GetDataPresent(DataFormats.FileDrop))
+        {
+            return false;
+        }
+
+        var files = dataObject.GetData(DataFormats.FileDrop) as string[];
+        return files is { Length: 1 } &&
+               File.Exists(files[0]) &&
+               string.Equals(Path.GetExtension(files[0]), ".pdf", StringComparison.OrdinalIgnoreCase);
+    }
+
+    private void OpenPdf(string pdfPath)
+    {
+        if (!File.Exists(pdfPath))
+        {
+            ShowPlaceholder("Файл не найден", pdfPath);
+            StatusTextBlock.Text = "Не удалось открыть файл.";
+            return;
+        }
+
+        _currentPdfPath = pdfPath;
+        PdfView.CoreWebView2.Navigate(new Uri(pdfPath).AbsoluteUri);
+        PlaceholderPanel.Visibility = Visibility.Collapsed;
+        CurrentFileTextBlock.Text = pdfPath;
+        Title = $"{Path.GetFileName(pdfPath)} - {AppTitle}";
+        StatusTextBlock.Text = "PDF открыт. Для печати нажмите Ctrl+P.";
+        UpdateCommandState();
+    }
+
+    private void ShowPlaceholder(string title, string description)
+    {
+        PlaceholderTitleTextBlock.Text = title;
+        PlaceholderDescriptionTextBlock.Text = description;
+        PlaceholderPanel.Visibility = Visibility.Visible;
+        CurrentFileTextBlock.Text = "PDF не открыт";
+        Title = AppTitle;
+        _currentPdfPath = null;
+        UpdateCommandState();
+    }
+
+    private void UpdateCommandState()
+    {
+        CommandManager.InvalidateRequerySuggested();
+    }
+}