From 133703aa2190db2a0dbe56b46337c7da70e273ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Peyronnet?= <leo.peyronnet@outlook.fr>
Date: Sun, 5 May 2024 10:59:05 +0200
Subject: [PATCH] Added Drag and drop section (#413)

---
 ColorPicker/Pages/ImageExtractorPage.xaml    | 23 +++++++++++++++++
 ColorPicker/Pages/ImageExtractorPage.xaml.cs | 26 ++++++++++++++++++++
 2 files changed, 49 insertions(+)

diff --git a/ColorPicker/Pages/ImageExtractorPage.xaml b/ColorPicker/Pages/ImageExtractorPage.xaml
index 51a78b20..87963cf2 100644
--- a/ColorPicker/Pages/ImageExtractorPage.xaml
+++ b/ColorPicker/Pages/ImageExtractorPage.xaml
@@ -101,6 +101,29 @@
             Visibility="Collapsed">
             <StackPanel x:Name="ImageDisplayer" Orientation="Horizontal" />
         </ScrollViewer>
+        <Border
+            x:Name="DragZone"
+            Grid.Row="2"
+            Margin="10"
+            Padding="10"
+            AllowDrop="True"
+            BorderBrush="{DynamicResource LightAccentColor}"
+            BorderThickness="1"
+            CornerRadius="5"
+            Drop="DragZone_Drop"
+            MouseLeftButtonUp="DragZone_MouseLeftButtonUp">
+            <StackPanel>
+                <TextBlock
+                    FontFamily="..\Fonts\#FluentSystemIcons-Regular"
+                    FontSize="36"
+                    Text="&#xF9AE;"
+                    TextAlignment="Center" />
+                <TextBlock
+                    FontWeight="Bold"
+                    Text="{x:Static lang:Resources.DragImagesHere}"
+                    TextAlignment="Center" />
+            </StackPanel>
+        </Border>
         <Button
             x:Name="ExtractBtn"
             Grid.Row="3"
diff --git a/ColorPicker/Pages/ImageExtractorPage.xaml.cs b/ColorPicker/Pages/ImageExtractorPage.xaml.cs
index e9c1f740..7c03ac51 100644
--- a/ColorPicker/Pages/ImageExtractorPage.xaml.cs
+++ b/ColorPicker/Pages/ImageExtractorPage.xaml.cs
@@ -26,6 +26,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 using ColorPicker.UserControls;
 using Microsoft.Win32;
 using Synethia;
+using System;
 using System.Collections.Generic;
 using System.Drawing;
 using System.IO;
@@ -68,6 +69,7 @@ private void LoadImageUI()
 		ImageScrollViewer.Visibility = ImageDisplayer.Children.Count == 0 ? Visibility.Collapsed : Visibility.Visible;
 		ColorPlaceholder.Visibility = ImageDisplayer.Children.Count == 0 ? Visibility.Visible : Visibility.Collapsed;
 		if (ImageDisplayer.Children.Count == 0) ColorDisplayerBorder.Visibility = Visibility.Collapsed;
+		DragZone.Visibility = ImageDisplayer.Children.Count == 0 ? Visibility.Visible : Visibility.Collapsed;
 	}
 
 	private void BrowseBtn_Click(object sender, RoutedEventArgs e)
@@ -225,4 +227,28 @@ private void SortBtn_Click(object sender, RoutedEventArgs e)
 		Colors = ascending ? Colors.OrderBy(x => x.Value).ToDictionary(x => x.Key, x => x.Value) : Colors.OrderByDescending(x => x.Value).ToDictionary(x => x.Key, x => x.Value);
 		LoadColorDisplayer(Colors);
 	}
+
+	private void DragZone_Drop(object sender, DragEventArgs e)
+	{
+		if (e.Data.GetDataPresent(DataFormats.FileDrop))
+		{
+			string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
+
+			foreach (string file in files)
+			{
+				string extension = Path.GetExtension(file).ToLower();
+
+				if (extension == ".jpg" || extension == ".png" || extension == ".jpeg" || extension == ".bmp" || extension == ".gif" || extension == ".ico")
+				{
+					filePaths.Add(file);
+				}
+			}
+			LoadImageUI();
+		}
+	}
+
+	private void DragZone_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
+	{
+		BrowseBtn_Click(sender, e);
+	}
 }
\ No newline at end of file