AImageButton CreateImageButton(Context context, BindableObject bindable, BindableProperty property, int defaultImage, int leftMargin, int rightMargin, string tag)
{
var result = new AImageButton(context);
result.Tag = tag;
result.SetPadding(0, 0, 0, 0);
result.Focusable = false;
result.SetScaleType(ImageView.ScaleType.FitCenter);
if (bindable.GetValue(property) is ImageSource image)
{
AutomationPropertiesProvider.SetContentDescription(result, image, null, null);
}
((ImageSource)bindable.GetValue(property)).LoadImage(MauiContext, (r) =>
{
result.SetImageDrawable(r?.Value);
});
var lp = new LinearLayout.LayoutParams((int)Context.ToPixels(22), LP.MatchParent)
{
LeftMargin = leftMargin,
RightMargin = rightMargin
};
result.LayoutParameters = lp;
lp.Dispose();
result.SetBackground(null);
return(result);
}
public ItemsViewRenderer(Context context) : base(context)
{
CollectionView.VerifyCollectionViewFlagEnabled(nameof(ItemsViewRenderer));
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_effectControlProvider = new EffectControlProvider(this);
}
AImageButton CreateImageButton(Context context, ImageSource image, int defaultImage, int leftMargin, int rightMargin)
{
var result = new AImageButton(context);
result.SetPadding(0, 0, 0, 0);
result.Focusable = false;
string defaultHint = null;
string defaultDescription = null;
AutomationPropertiesProvider.SetContentDescription(result, image, ref defaultDescription, ref defaultHint);
SetImage(result, image, defaultImage);
var lp = new LinearLayout.LayoutParams((int)Context.ToPixels(22), LP.MatchParent)
{
LeftMargin = leftMargin,
RightMargin = rightMargin
};
result.LayoutParameters = lp;
lp.Dispose();
result.SetBackground(null);
return(result);
}
void SetupAutomationDefaults()
{
if (!_defaultAutomationSet)
{
_defaultAutomationSet = true;
AutomationPropertiesProvider.SetupDefaults(this, ref _defaultContentDescription, ref _defaultHint);
}
}
public override void OnInitializeAccessibilityNodeInfo(global::Android.Views.View host, AccessibilityNodeInfo info)
{
base.OnInitializeAccessibilityNodeInfo(host, info);
info.ClassName = ClassName;
if (_element != null)
{
var value = string.IsNullOrWhiteSpace(ValueText) ? string.Empty : $"{ValueText}. ";
host.ContentDescription = $"{value}{AutomationPropertiesProvider.ConcatenateNameAndHelpText(_element)}";
}
}
public ItemsViewRenderer(Context context) : base(new ContextThemeWrapper(context, Resource.Style.collectionViewStyle))
{
CollectionView.VerifyCollectionViewFlagEnabled(nameof(ItemsViewRenderer));
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_effectControlProvider = new EffectControlProvider(this);
VerticalScrollBarEnabled = false;
HorizontalScrollBarEnabled = false;
}
void Initialize()
{
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_backgroundTracker = new BorderBackgroundManager(this);
SoundEffectsEnabled = false;
OnFocusChangeListener = this;
SetOnCheckedChangeListener(this);
Tag = this;
}
public ItemsViewRenderer(Context context) : base(new ContextThemeWrapper(context, Resource.Style.collectionViewStyle))
{
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_effectControlProvider = new EffectControlProvider(this);
_emptyCollectionObserver = new DataChangeObserver(UpdateEmptyViewVisibility);
_itemsUpdateScrollObserver = new DataChangeObserver(AdjustScrollForItemUpdate);
VerticalScrollBarEnabled = false;
HorizontalScrollBarEnabled = false;
}
public MaterialButtonRenderer(Context context) : base(new ContextThemeWrapper(context, Resource.Style.XamarinFormsMaterialTheme))
{
VisualElement.VerifyVisualFlagEnabled();
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
SoundEffectsEnabled = false;
SetOnClickListener(this);
SetOnTouchListener(this);
AddOnAttachStateChangeListener(this);
OnFocusChangeListener = this;
Tag = this;
}
public MaterialButtonRenderer(Context context, BindableObject element)
: base(MaterialContextThemeWrapper.Create(context))
{
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_buttonLayoutManager = new ButtonLayoutManager(this,
alignIconWithText: true,
preserveInitialPadding: true,
borderAdjustsPadding: false,
maintainLegacyMeasurements: false);
SoundEffectsEnabled = false;
SetOnClickListener(this);
SetOnTouchListener(this);
AddOnAttachStateChangeListener(this);
OnFocusChangeListener = this;
Tag = this;
}
AImageButton CreateImageButton(Context context, BindableObject bindable, BindableProperty property, int defaultImage, int leftMargin, int rightMargin, string tag)
{
var result = new AImageButton(context);
result.Tag = tag;
result.SetPadding(0, 0, 0, 0);
result.Focusable = false;
result.SetScaleType(ImageView.ScaleType.FitCenter);
string defaultHint = null;
string defaultDescription = null;
if (bindable.GetValue(property) is ImageSource image)
{
AutomationPropertiesProvider.SetContentDescription(result, image, ref defaultDescription, ref defaultHint);
}
_shellContext.ApplyDrawableAsync(bindable, property, drawable =>
{
if (drawable != null)
{
result.SetImageDrawable(drawable);
}
else if (defaultImage > 0)
{
result.SetImageResource(defaultImage);
}
else
{
result.SetImageDrawable(null);
}
});
var lp = new LinearLayout.LayoutParams((int)Context.ToPixels(22), LP.MatchParent)
{
LeftMargin = leftMargin,
RightMargin = rightMargin
};
result.LayoutParameters = lp;
lp.Dispose();
result.SetBackground(null);
return(result);
}
public MediaElementRenderer(Context context) : base(context)
{
System.Maui.MediaElement.VerifyMediaElementFlagEnabled(nameof(MediaElementRenderer));
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_effectControlProvider = new EffectControlProvider(this);
_view = new FormsVideoView(Context);
_view.SetZOrderMediaOverlay(true);
_view.SetOnCompletionListener(this);
_view.SetOnInfoListener(this);
_view.SetOnPreparedListener(this);
_view.SetOnErrorListener(this);
_view.MetadataRetrieved += MetadataRetrieved;
AddView(_view, -1, -1);
_controller = new MediaController(Context);
_controller.SetAnchorView(this);
_view.SetMediaController(_controller);
}
public MaterialButtonRenderer(Context context)
: base(new ContextThemeWrapper(context, Resource.Style.XamarinFormsMaterialTheme))
{
VisualElement.VerifyVisualFlagEnabled();
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_buttonLayoutManager = new ButtonLayoutManager(this,
alignIconWithText: true,
preserveInitialPadding: true,
borderAdjustsPadding: false,
maintainLegacyMeasurements: false);
SoundEffectsEnabled = false;
SetOnClickListener(this);
SetOnTouchListener(this);
AddOnAttachStateChangeListener(this);
OnFocusChangeListener = this;
Tag = this;
}
void UpdateTitleIcon()
{
Page currentPage = Element.CurrentPage;
if (currentPage == null)
{
return;
}
ImageSource source = NavigationPage.GetTitleIconImageSource(currentPage);
if (source == null || source.IsEmpty)
{
_toolbar.RemoveView(_titleIconView);
_titleIconView?.Dispose();
_titleIconView = null;
_imageSource = null;
return;
}
if (_titleIconView == null)
{
_titleIconView = new ImageView(Context);
_toolbar.AddView(_titleIconView, 0);
}
if (_imageSource != source)
{
_imageSource = source;
_titleIconView.SetImageResource(global::Android.Resource.Color.Transparent);
_ = this.ApplyDrawableAsync(currentPage, NavigationPage.TitleIconImageSourceProperty, Context, drawable =>
{
_titleIconView.SetImageDrawable(drawable);
AutomationPropertiesProvider.AccessibilitySettingsChanged(_titleIconView, source);
});
}
}
void OnTabLayoutChange(object sender, AView.LayoutChangeEventArgs e)
{
if (_disposed)
{
return;
}
var items = SectionController.GetItems();
for (int i = 0; i < _tablayout.TabCount; i++)
{
if (items.Count <= i)
{
break;
}
var tab = _tablayout.GetTabAt(i);
if (tab.View != null)
{
AutomationPropertiesProvider.AccessibilitySettingsChanged(tab.View, items[i]);
}
}
}
public void OnLongPress(MotionEvent e)
{
if (!HasAnyDragGestures())
{
return;
}
SendEventArgs <DragGestureRecognizer>(rec =>
{
if (!rec.CanDrag)
{
return;
}
var element = GetView();
var renderer = Platform.GetRenderer(element);
var v = renderer.View;
if (v.Handle == IntPtr.Zero)
{
return;
}
var args = rec.SendDragStarting(element);
if (args.Cancel)
{
return;
}
CustomLocalStateData customLocalStateData = new CustomLocalStateData();
customLocalStateData.DataPackage = args.Data;
//_dragSource[element] = args.Data;
string clipDescription = AutomationPropertiesProvider.ConcatenateNameAndHelpText(element) ?? String.Empty;
ClipData.Item item = null;
List <string> mimeTypes = new List <string>();
if (!args.Handled)
{
if (args.Data.Image != null)
{
mimeTypes.Add("image/jpeg");
item = ConvertToClipDataItem(args.Data.Image, mimeTypes);
}
else
{
string text = clipDescription ?? args.Data.Text;
if (Uri.TryCreate(text, UriKind.Absolute, out _))
{
item = new ClipData.Item(AUri.Parse(text));
mimeTypes.Add(ClipDescription.MimetypeTextUrilist);
}
else
{
item = new ClipData.Item(text);
mimeTypes.Add(ClipDescription.MimetypeTextPlain);
}
}
}
var dataPackage = args.Data;
ClipData.Item userItem = null;
if (dataPackage.Image != null)
{
userItem = ConvertToClipDataItem(dataPackage.Image, mimeTypes);
}
if (dataPackage.Text != null)
{
userItem = new ClipData.Item(dataPackage.Text);
}
if (item == null)
{
item = userItem;
userItem = null;
}
ClipData data = new ClipData(clipDescription, mimeTypes.ToArray(), item);
if (userItem != null)
{
data.AddItem(userItem);
}
var dragShadowBuilder = new AView.DragShadowBuilder(v);
customLocalStateData.SourceNativeView = v;
customLocalStateData.SourceElement = renderer?.Element;
if (Forms.IsNougatOrNewer)
{
v.StartDragAndDrop(data, dragShadowBuilder, customLocalStateData, (int)ADragFlags.Global | (int)ADragFlags.GlobalUriRead);
}
else
#pragma warning disable CS0618 // Type or member is obsolete
{
v.StartDrag(data, dragShadowBuilder, customLocalStateData, (int)ADragFlags.Global | (int)ADragFlags.GlobalUriRead);
}
#pragma warning restore CS0618 // Type or member is obsolete
});
}
public MaterialEntryRenderer(Context context) : base(new ContextThemeWrapper(context, Resource.Style.XamarinFormsMaterialTheme))
{
VisualElement.VerifyVisualFlagEnabled();
_automationPropertiesProvider = new AutomationPropertiesProvider(this);
_effectControlProvider = new EffectControlProvider(this);
}
protected virtual void SetFocusable() => AutomationPropertiesProvider.SetFocusable(this, Element, ref _defaultFocusable);
void UpdateAutomationId()
{
AutomationPropertiesProvider
.SetAutomationId(_editText, _searchHandler?.AutomationId);
}
protected virtual void SetFocusable() => AutomationPropertiesProvider.SetFocusable(this, Element, ref _defaultFocusable, ref _defaultImportantForAccessibility);
protected virtual void SetAutomationId(string id)
{
SetupAutomationDefaults();
AutomationPropertiesProvider.SetAutomationId(this, Element, id);
}
protected virtual void SetContentDescription()
{
SetupAutomationDefaults();
AutomationPropertiesProvider.SetContentDescription(this, Element, _defaultContentDescription, _defaultHint);
}
protected virtual void SetAutomationId(string id) => AutomationPropertiesProvider.SetAutomationId(this, Element, id);
protected override void SetContentDescription() => AutomationPropertiesProvider.SetBasicContentDescription(this, Element, ref _defaultContentDescription);
protected virtual void SetContentDescription() => AutomationPropertiesProvider.SetContentDescription(this, Element, ref _defaultContentDescription, ref _defaultHint);
