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Viewing changes to external/xwt/Xwt.WPF/Xwt.WPFBackend/PopoverBackend.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/xwt/Xwt.WPF/Xwt.WPFBackend/PopoverBackend.cs
 
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//
 
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// PopoverBackend.cs
 
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//
 
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// Author:
 
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//       Alan McGovern <alan@xamarin.com>
 
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//
 
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// Copyright (c) 2012 Xamarin, Inc.
 
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//
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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//
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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//
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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using Xwt.Backends;
 
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using System.Windows.Media;
 
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namespace Xwt.WPFBackend
 
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{
 
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        public class PopoverBackend : IPopoverBackend
 
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        {
 
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                public Xwt.Popover.Position ActualPosition {
 
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                        get; set;
 
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                }
 
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                System.Windows.Controls.Border Border {
 
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                        get; set;
 
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                }
 
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                IPopoverEventSink EventSink {
 
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                        get; set;
 
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                }
 
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                Popover Frontend {
 
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                        get; set;
 
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                }
 
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                System.Windows.Controls.Primitives.Popup NativeWidget {
 
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                        get; set;
 
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                }
 
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                public PopoverBackend ()
 
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                {
 
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                        Border = new System.Windows.Controls.Border {
 
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                                BorderBrush = Brushes.Black,
 
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                                CornerRadius = new System.Windows.CornerRadius (15),
 
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                                Padding = new System.Windows.Thickness (15),
 
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                                BorderThickness = new System.Windows.Thickness (1)
 
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                        };
 
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                        NativeWidget = new System.Windows.Controls.Primitives.Popup {
 
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                                AllowsTransparency = true,
 
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                                Child = Border,
 
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                                Placement = System.Windows.Controls.Primitives.PlacementMode.Custom,
 
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                                StaysOpen = false,
 
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                                Margin = new System.Windows.Thickness (10),
 
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                        };
 
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                        NativeWidget.CustomPopupPlacementCallback = (popupSize, targetSize, offset) => {
 
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                                var location = new System.Windows.Point (targetSize.Width / 2 - popupSize.Width / 2, 0);
 
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                                if (ActualPosition == Popover.Position.Top)
 
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                                        location.Y = targetSize.Height;
 
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                                else
 
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                                        location.Y = -popupSize.Height;
 
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                                return new[] {
 
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                                        new System.Windows.Controls.Primitives.CustomPopupPlacement (location, System.Windows.Controls.Primitives.PopupPrimaryAxis.Horizontal)
 
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                                };
 
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                        };
 
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                }
 
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                public void Initialize (IPopoverEventSink sink)
 
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                {
 
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                        EventSink = sink;
 
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                }
 
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                public void InitializeBackend (object frontend)
 
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                {
 
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                        Frontend = (Popover) frontend;
 
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                }
 
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                public void EnableEvent (object eventId)
 
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                {
 
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                        if (eventId is PopoverEvent)
 
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                                if ((PopoverEvent)eventId == PopoverEvent.Closed)
 
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                                        NativeWidget.Closed +=new EventHandler(NativeWidget_Closed);
 
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                }
 
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                public void DisableEvent (object eventId)
 
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                {
 
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                        if (eventId is PopoverEvent)
 
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                                if ((PopoverEvent) eventId == PopoverEvent.Closed)
 
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                                        NativeWidget.Closed += new EventHandler (NativeWidget_Closed);
 
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                }
 
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                public void Show (Xwt.Popover.Position orientation, Xwt.Widget reference, Xwt.Rectangle positionRect, Widget child)
 
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                {
 
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                        ActualPosition = orientation;
 
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                        Border.Child = (System.Windows.FrameworkElement) Xwt.Engine.WidgetRegistry.GetNativeWidget (child);
 
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                        NativeWidget.PlacementTarget =(System.Windows.FrameworkElement) Xwt.Engine.WidgetRegistry.GetNativeWidget (reference);
 
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                        NativeWidget.IsOpen = true;
 
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                }
 
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                void NativeWidget_Closed (object sender, EventArgs e)
 
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                {
 
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                        EventSink.OnClosed ();
 
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                }
 
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                public void Hide ()
 
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                {
 
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                        NativeWidget.IsOpen = false;
 
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                }
 
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                public void Dispose ()
 
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                {
 
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                        if (NativeWidget != null)
 
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                                NativeWidget.Closed -= NativeWidget_Closed;
 
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                }
 
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        }
 
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}
 
 
b'\\ No newline at end of file'