Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / MS / Internal / Automation / ScrollProviderWrapper.cs / 1 / ScrollProviderWrapper.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Scroll pattern provider wrapper for WCP // // History: // 07/21/2003 : BrendanM Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Windows.Threading; using System.Windows; using System.Windows.Media; using System.Windows.Automation; using System.Windows.Automation.Provider; using System.Windows.Automation.Peers; using MS.Internal.Automation; namespace MS.Internal.Automation { // Automation/WCP Wrapper class: Implements that UIAutomation I...Provider // interface, and calls through to a WCP AutomationPeer which implements the corresponding // I...Provider inteface. Marshalls the call from the RPC thread onto the // target AutomationPeer's context. // // Class has two major parts to it: // * Implementation of the I...Provider, which uses Dispatcher.Invoke // to call a private method (lives in second half of the class) via a delegate, // if necessary, packages any params into an object param. Return type of Invoke // must be cast from object to appropriate type. // * private methods - one for each interface entry point - which get called back // on the right context. These call through to the peer that's actually // implenting the I...Provider version of the interface. internal class ScrollProviderWrapper: MarshalByRefObject, IScrollProvider { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors private ScrollProviderWrapper( AutomationPeer peer, IScrollProvider iface ) { _peer = peer; _iface = iface; } #endregion Constructors //------------------------------------------------------ // // Interface IScrollProvider // //----------------------------------------------------- #region Interface IScrollProvider public void Scroll( ScrollAmount horizontalAmount, ScrollAmount verticalAmount ) { ElementUtil.Invoke( _peer, new DispatcherOperationCallback( Scroll ), new ScrollAmount [ ] { horizontalAmount, verticalAmount } ); } public void SetScrollPercent( double horizontalPercent, double verticalPercent ) { ElementUtil.Invoke( _peer, new DispatcherOperationCallback( SetScrollPercent ), new double [ ] { horizontalPercent, verticalPercent } ); } public double HorizontalScrollPercent { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetHorizontalScrollPercent ), null ); } } public double VerticalScrollPercent { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetVerticalScrollPercent ), null ); } } public double HorizontalViewSize { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetHorizontalViewSize ), null ); } } public double VerticalViewSize { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetVerticalViewSize ), null ); } } public bool HorizontallyScrollable { get { return (bool) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetHorizontallyScrollable ), null ); } } public bool VerticallyScrollable { get { return (bool) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetVerticallyScrollable ), null ); } } #endregion Interface IScrollProvider //------------------------------------------------------ // // Internal Methods // //------------------------------------------------------ #region Internal Methods internal static object Wrap( AutomationPeer peer, object iface ) { return new ScrollProviderWrapper( peer, (IScrollProvider) iface ); } #endregion Internal Methods //----------------------------------------------------- // // Private Methods // //------------------------------------------------------ #region Private Methods private object Scroll( object arg ) { ScrollAmount [ ] args = (ScrollAmount [ ]) arg; _iface.Scroll( args[ 0 ], args[ 1 ] ); return null; } private object SetScrollPercent( object arg ) { double [ ] args = (double [ ]) arg; _iface.SetScrollPercent( args[ 0 ], args[ 1 ] ); return null; } private object GetHorizontalScrollPercent( object unused ) { return _iface.HorizontalScrollPercent; } private object GetVerticalScrollPercent( object unused ) { return _iface.VerticalScrollPercent; } private object GetHorizontalViewSize( object unused ) { return _iface.HorizontalViewSize; } private object GetVerticalViewSize( object unused ) { return _iface.VerticalViewSize; } private object GetHorizontallyScrollable( object unused ) { return _iface.HorizontallyScrollable; } private object GetVerticallyScrollable( object unused ) { return _iface.VerticallyScrollable; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //----------------------------------------------------- #region Private Fields private AutomationPeer _peer; private IScrollProvider _iface; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Scroll pattern provider wrapper for WCP // // History: // 07/21/2003 : BrendanM Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Windows.Threading; using System.Windows; using System.Windows.Media; using System.Windows.Automation; using System.Windows.Automation.Provider; using System.Windows.Automation.Peers; using MS.Internal.Automation; namespace MS.Internal.Automation { // Automation/WCP Wrapper class: Implements that UIAutomation I...Provider // interface, and calls through to a WCP AutomationPeer which implements the corresponding // I...Provider inteface. Marshalls the call from the RPC thread onto the // target AutomationPeer's context. // // Class has two major parts to it: // * Implementation of the I...Provider, which uses Dispatcher.Invoke // to call a private method (lives in second half of the class) via a delegate, // if necessary, packages any params into an object param. Return type of Invoke // must be cast from object to appropriate type. // * private methods - one for each interface entry point - which get called back // on the right context. These call through to the peer that's actually // implenting the I...Provider version of the interface. internal class ScrollProviderWrapper: MarshalByRefObject, IScrollProvider { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors private ScrollProviderWrapper( AutomationPeer peer, IScrollProvider iface ) { _peer = peer; _iface = iface; } #endregion Constructors //------------------------------------------------------ // // Interface IScrollProvider // //----------------------------------------------------- #region Interface IScrollProvider public void Scroll( ScrollAmount horizontalAmount, ScrollAmount verticalAmount ) { ElementUtil.Invoke( _peer, new DispatcherOperationCallback( Scroll ), new ScrollAmount [ ] { horizontalAmount, verticalAmount } ); } public void SetScrollPercent( double horizontalPercent, double verticalPercent ) { ElementUtil.Invoke( _peer, new DispatcherOperationCallback( SetScrollPercent ), new double [ ] { horizontalPercent, verticalPercent } ); } public double HorizontalScrollPercent { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetHorizontalScrollPercent ), null ); } } public double VerticalScrollPercent { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetVerticalScrollPercent ), null ); } } public double HorizontalViewSize { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetHorizontalViewSize ), null ); } } public double VerticalViewSize { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetVerticalViewSize ), null ); } } public bool HorizontallyScrollable { get { return (bool) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetHorizontallyScrollable ), null ); } } public bool VerticallyScrollable { get { return (bool) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetVerticallyScrollable ), null ); } } #endregion Interface IScrollProvider //------------------------------------------------------ // // Internal Methods // //------------------------------------------------------ #region Internal Methods internal static object Wrap( AutomationPeer peer, object iface ) { return new ScrollProviderWrapper( peer, (IScrollProvider) iface ); } #endregion Internal Methods //----------------------------------------------------- // // Private Methods // //------------------------------------------------------ #region Private Methods private object Scroll( object arg ) { ScrollAmount [ ] args = (ScrollAmount [ ]) arg; _iface.Scroll( args[ 0 ], args[ 1 ] ); return null; } private object SetScrollPercent( object arg ) { double [ ] args = (double [ ]) arg; _iface.SetScrollPercent( args[ 0 ], args[ 1 ] ); return null; } private object GetHorizontalScrollPercent( object unused ) { return _iface.HorizontalScrollPercent; } private object GetVerticalScrollPercent( object unused ) { return _iface.VerticalScrollPercent; } private object GetHorizontalViewSize( object unused ) { return _iface.HorizontalViewSize; } private object GetVerticalViewSize( object unused ) { return _iface.VerticalViewSize; } private object GetHorizontallyScrollable( object unused ) { return _iface.HorizontallyScrollable; } private object GetVerticallyScrollable( object unused ) { return _iface.VerticallyScrollable; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //----------------------------------------------------- #region Private Fields private AutomationPeer _peer; private IScrollProvider _iface; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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