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authorJason Smith <jason.smith@xamarin.com>2016-04-24 16:25:26 (GMT)
committerRui Marinho <me@ruimarinho.net>2016-04-24 16:25:26 (GMT)
commit5907152c50ee2c658b266f2804e6b383bb15a6f1 (patch)
tree9beb907623359723456c5c03b08922bebc4f41f3 /Xamarin.Forms.Pages/DataPage.cs
parentfeac1ba3ed6df5e27b3fa2076bd15c190cbacd1c (diff)
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Evolve feature branch (#117)
* Initial import of evolve features * [Android] Add Xamarin.Forms.Platform.Android.AppLinks project * [iOS] Fix issues with c# 6 features on iOS AppLinks * Added naive stanza to update-docs-windows.bat to produce Pages docs. Not tested. (#69) * Update packages * Add AppLinks android nuspec and fix linker issues * Fix build * Fix nusepc * Fix nuspec * Update android support nugets to 23.2.1 * Update Xamarin.UITest * Add CardView * [iOS] Fix app link for CoreSpotlight * [Android] Update AppLinks android support libs * Add Newtonsoft.Json dependency to nuspec * Fix NRE when setting ControlTemplate to null * Move to ModernHttpClient for download * Try fix build * Preserve android app links * Fix margin issue * General coding and simple fixes
Diffstat (limited to 'Xamarin.Forms.Pages/DataPage.cs')
-rw-r--r--Xamarin.Forms.Pages/DataPage.cs76
1 files changed, 76 insertions, 0 deletions
diff --git a/Xamarin.Forms.Pages/DataPage.cs b/Xamarin.Forms.Pages/DataPage.cs
new file mode 100644
index 0000000..1ec28d5
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+++ b/Xamarin.Forms.Pages/DataPage.cs
@@ -0,0 +1,76 @@
+´╗┐using System.Collections.Generic;
+using System.Linq;
+
+namespace Xamarin.Forms.Pages
+{
+ public class DataPage : ContentPage, IDataSourceProvider
+ {
+ public static readonly BindableProperty DataProperty = BindableProperty.Create(nameof(Data), typeof(IEnumerable<IDataItem>), typeof(DataPage), default(IEnumerable<IDataItem>));
+
+ public static readonly BindableProperty DataSourceProperty = BindableProperty.Create(nameof(DataSource), typeof(IDataSource), typeof(DataPage), null, propertyChanged: OnDataSourceChanged);
+
+ public static readonly BindableProperty DefaultItemTemplateProperty = BindableProperty.Create(nameof(DefaultItemTemplate), typeof(DataTemplate), typeof(DataPage), default(DataTemplate));
+
+ readonly HashSet<string> _maskedKeys = new HashSet<string>();
+
+ public DataPage()
+ {
+ SetBinding(DataProperty, new Binding("DataSource.Data", source: this));
+ }
+
+ public IEnumerable<IDataItem> Data
+ {
+ get { return (IEnumerable<IDataItem>)GetValue(DataProperty); }
+ set { SetValue(DataProperty, value); }
+ }
+
+ public DataTemplate DefaultItemTemplate
+ {
+ get { return (DataTemplate)GetValue(DefaultItemTemplateProperty); }
+ set { SetValue(DefaultItemTemplateProperty, value); }
+ }
+
+ public IDataSource DataSource
+ {
+ get { return (IDataSource)GetValue(DataSourceProperty); }
+ set { SetValue(DataSourceProperty, value); }
+ }
+
+ void IDataSourceProvider.MaskKey(string key)
+ {
+ _maskedKeys.Add(key);
+ IDataSource dataSource = DataSource;
+ if (dataSource != null && !dataSource.MaskedKeys.Contains(key))
+ {
+ dataSource.MaskKey(key);
+ }
+ }
+
+ void IDataSourceProvider.UnmaskKey(string key)
+ {
+ _maskedKeys.Remove(key);
+ DataSource?.UnmaskKey(key);
+ }
+
+ static void OnDataSourceChanged(BindableObject bindable, object oldValue, object newValue)
+ {
+ var dataView = (DataPage)bindable;
+ var dataSource = (IDataSource)newValue;
+ var oldSource = (IDataSource)oldValue;
+
+ if (oldSource != null)
+ {
+ foreach (string key in dataView._maskedKeys)
+ oldSource.UnmaskKey(key);
+ }
+
+ if (dataSource != null)
+ {
+ foreach (string key in dataView._maskedKeys)
+ {
+ dataSource.MaskKey(key);
+ }
+ }
+ }
+ }
+} \ No newline at end of file