summaryrefslogtreecommitdiff
path: root/Xamarin.Forms.Platform.WinRT.Phone/SearchBarRenderer.cs
diff options
context:
space:
mode:
Diffstat (limited to 'Xamarin.Forms.Platform.WinRT.Phone/SearchBarRenderer.cs')
-rw-r--r--Xamarin.Forms.Platform.WinRT.Phone/SearchBarRenderer.cs160
1 files changed, 160 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WinRT.Phone/SearchBarRenderer.cs b/Xamarin.Forms.Platform.WinRT.Phone/SearchBarRenderer.cs
new file mode 100644
index 00000000..33bd782f
--- /dev/null
+++ b/Xamarin.Forms.Platform.WinRT.Phone/SearchBarRenderer.cs
@@ -0,0 +1,160 @@
+using System;
+using System.ComponentModel;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Media;
+
+namespace Xamarin.Forms.Platform.WinRT
+{
+ public class SearchBarRenderer
+ : ViewRenderer<SearchBar, SearchBox>
+ {
+ protected override void OnElementChanged (ElementChangedEventArgs<SearchBar> e)
+ {
+ if (e.NewElement != null) {
+ if (Control == null) {
+ SetNativeControl (new SearchBox ());
+ Control.QuerySubmitted += OnQuerySubmitted;
+ Control.QueryChanged += OnQueryChanged;
+ Control.Loaded += (sender, args) => {
+ _queryTextBox = Control.GetFirstDescendant<FormsTextBox> ();
+ UpdateTextColor ();
+ UpdatePlaceholderColor ();
+ };
+ }
+
+ UpdateText ();
+ UpdatePlaceholder ();
+ UpdateFont ();
+ UpdateAlignment ();
+ UpdatePlaceholderColor ();
+ UpdateTextColor ();
+ }
+
+ base.OnElementChanged (e);
+ }
+
+ protected override void OnElementPropertyChanged (object sender, PropertyChangedEventArgs e)
+ {
+ base.OnElementPropertyChanged (sender, e);
+
+ if (e.PropertyName == SearchBar.TextProperty.PropertyName)
+ UpdateText ();
+ else if (e.PropertyName == SearchBar.PlaceholderProperty.PropertyName)
+ UpdatePlaceholder ();
+ else if (e.PropertyName == SearchBar.FontAttributesProperty.PropertyName)
+ UpdateFont ();
+ else if (e.PropertyName == SearchBar.FontFamilyProperty.PropertyName)
+ UpdateFont ();
+ else if (e.PropertyName == SearchBar.FontSizeProperty.PropertyName)
+ UpdateFont ();
+ else if (e.PropertyName == SearchBar.HorizontalTextAlignmentProperty.PropertyName)
+ UpdateAlignment ();
+ else if (e.PropertyName == SearchBar.PlaceholderColorProperty.PropertyName)
+ UpdatePlaceholderColor ();
+ else if (e.PropertyName == SearchBar.TextColorProperty.PropertyName)
+ UpdateTextColor ();
+ }
+
+ bool _fontApplied;
+
+ void OnQuerySubmitted (SearchBox sender, SearchBoxQuerySubmittedEventArgs e)
+ {
+ Element.OnSearchButtonPressed ();
+ }
+
+ void UpdatePlaceholder ()
+ {
+ Control.PlaceholderText = Element.Placeholder ?? string.Empty;
+ }
+
+ void UpdateFont ()
+ {
+ if (Control == null)
+ return;
+
+ var searchBar = Element;
+
+ if (searchBar == null)
+ return;
+
+ bool searchBarIsDefault = searchBar.FontFamily == null && searchBar.FontSize == Device.GetNamedSize (NamedSize.Default, typeof (SearchBar), true) && searchBar.FontAttributes == FontAttributes.None;
+
+ if (searchBarIsDefault && !_fontApplied)
+ return;
+
+ if (searchBarIsDefault) {
+ Control.ClearValue (Windows.UI.Xaml.Controls.Control.FontStyleProperty);
+ Control.ClearValue (Windows.UI.Xaml.Controls.Control.FontSizeProperty);
+ Control.ClearValue (Windows.UI.Xaml.Controls.Control.FontFamilyProperty);
+ Control.ClearValue (Windows.UI.Xaml.Controls.Control.FontWeightProperty);
+ Control.ClearValue (Windows.UI.Xaml.Controls.Control.FontStretchProperty);
+ } else {
+ Control.ApplyFont (searchBar);
+ }
+
+ _fontApplied = true;
+ }
+
+ void OnQueryChanged (SearchBox sender, SearchBoxQueryChangedEventArgs e)
+ {
+ ((IElementController) Element).SetValueFromRenderer (SearchBar.TextProperty, e.QueryText);
+ }
+
+ void UpdateText ()
+ {
+ Control.QueryText = Element.Text ?? string.Empty;
+ }
+
+ void UpdateAlignment ()
+ {
+ Control.HorizontalTextAlignment = Element.HorizontalTextAlignment;
+ }
+
+ void UpdateTextColor ()
+ {
+ if (_queryTextBox == null) {
+ return;
+ }
+
+ var textColor = Element.TextColor;
+
+ if (textColor.IsDefault)
+ {
+ if (_defaultTextColorBrush == null) {
+ return;
+ }
+
+ _queryTextBox.Foreground = _defaultTextColorBrush;
+ }
+
+ _defaultTextColorBrush = _defaultTextColorBrush ?? _queryTextBox.Foreground;
+
+ _queryTextBox.Foreground = textColor.ToBrush();
+ }
+
+ void UpdatePlaceholderColor ()
+ {
+ if (_queryTextBox == null) {
+ return;
+ }
+
+ var placeholderColor = Element.PlaceholderColor;
+
+ if (placeholderColor.IsDefault) {
+ if (_defaultPlaceholderColorBrush == null) {
+ return;
+ }
+
+ _queryTextBox.PlaceholderForegroundBrush = _defaultPlaceholderColorBrush;
+ }
+
+ _defaultPlaceholderColorBrush = _defaultPlaceholderColorBrush ?? _queryTextBox.PlaceholderForegroundBrush;
+
+ _queryTextBox.PlaceholderForegroundBrush = placeholderColor.ToBrush ();
+ }
+
+ FormsTextBox _queryTextBox;
+ Brush _defaultTextColorBrush;
+ Brush _defaultPlaceholderColorBrush;
+ }
+}