399 lines
14 KiB
C#
399 lines
14 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="MSHTMLHost.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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// MSHTMLHost.cs
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//
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// 12/17/98: Created: Microsoft
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//
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namespace System.Web.UI.Design.MobileControls.Util {
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using System.Runtime.Serialization.Formatters;
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using System.Runtime.InteropServices;
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using System.ComponentModel;
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using System.Diagnostics;
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using System;
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using Microsoft.Win32;
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using System.Windows.Forms;
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/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="MSHTMLHost"]/*' />
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/// <devdoc>
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/// Control that hosts a Trident DocObject.
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/// </devdoc>
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/// <internalonly/>
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//
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[System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)]
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[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
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internal sealed class MSHTMLHost : Control {
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private TridentSite tridentSite;
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internal MSHTMLHost() : base() {
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}
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public NativeMethods.IHTMLDocument2 GetDocument() {
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Debug.Assert(tridentSite != null,
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"Cannot call getDocument before calling createTrident");
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return tridentSite.GetDocument();
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}
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protected override CreateParams CreateParams {
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get {
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CreateParams cp = base.CreateParams;
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cp.ExStyle |= NativeMethods.WS_EX_STATICEDGE;
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return cp;
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}
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}
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internal bool CreateTrident() {
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Debug.Assert(Handle != IntPtr.Zero,
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"MSHTMLHost must first be created before createTrident is called");
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try {
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tridentSite = new TridentSite(this);
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}
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catch (Exception e) {
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Debug.WriteLine("Exception caught in MSHTMLHost::CreateTrident\n\t" + e.ToString());
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return false;
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}
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return true;
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}
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internal void ActivateTrident() {
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Debug.Assert(tridentSite != null,
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"cannot call activateTrident before calling createTrident");
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tridentSite.Activate();
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}
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}
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/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite"]/*' />
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/// <devdoc>
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/// Implements the client site for Trident DocObject
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/// </devdoc>
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[ClassInterface(ClassInterfaceType.None)]
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[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
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internal class TridentSite : NativeMethods.IOleClientSite, NativeMethods.IOleDocumentSite, NativeMethods.IOleInPlaceSite, NativeMethods.IOleInPlaceFrame, NativeMethods.IDocHostUIHandler {
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protected Control parentControl;
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protected NativeMethods.IOleDocumentView tridentView;
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protected NativeMethods.IOleObject tridentOleObject;
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protected NativeMethods.IHTMLDocument2 tridentDocument;
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protected EventHandler resizeHandler;
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internal TridentSite(Control parent) {
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Debug.Assert((parent != null) && (parent.Handle != IntPtr.Zero),
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"Invalid control passed in as parent of Trident window");
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parentControl = parent;
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resizeHandler = new EventHandler(this.OnParentResize);
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parentControl.Resize += resizeHandler;
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CreateDocument();
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}
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public NativeMethods.IHTMLDocument2 GetDocument() {
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return tridentDocument;
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}
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internal void Activate() {
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ActivateDocument();
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}
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protected virtual void OnParentResize(object src, EventArgs e) {
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if (tridentView != null) {
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NativeMethods.COMRECT r = new NativeMethods.COMRECT();
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NativeMethods.GetClientRect(parentControl.Handle, r);
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tridentView.SetRect(r);
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}
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}
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///////////////////////////////////////////////////////////////////////////
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// IOleClientSite Implementation
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public virtual void SaveObject() {
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}
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public virtual object GetMoniker(int dwAssign, int dwWhichMoniker) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual int GetContainer(out NativeMethods.IOleContainer ppContainer) {
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ppContainer = null;
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return NativeMethods.E_NOINTERFACE;
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}
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public virtual void ShowObject() {
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}
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public virtual void OnShowWindow(int fShow) {
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}
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public virtual void RequestNewObjectLayout() {
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}
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///////////////////////////////////////////////////////////////////////////
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// IOleDocumentSite Implementation
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public virtual int ActivateMe(NativeMethods.IOleDocumentView pViewToActivate) {
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Debug.Assert(pViewToActivate != null,
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"Expected the view to be non-null");
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if (pViewToActivate == null)
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return NativeMethods.E_INVALIDARG;
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NativeMethods.COMRECT r = new NativeMethods.COMRECT();
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NativeMethods.GetClientRect(parentControl.Handle, r);
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tridentView = pViewToActivate;
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tridentView.SetInPlaceSite((NativeMethods.IOleInPlaceSite)this);
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tridentView.UIActivate(1);
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tridentView.SetRect(r);
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tridentView.Show(1);
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return NativeMethods.S_OK;
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}
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///////////////////////////////////////////////////////////////////////////
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// IOleInPlaceSite Implementation
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public virtual IntPtr GetWindow() {
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return parentControl.Handle;
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}
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public virtual void ContextSensitiveHelp(int fEnterMode) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual int CanInPlaceActivate() {
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return NativeMethods.S_OK;
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}
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public virtual void OnInPlaceActivate() {
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}
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public virtual void OnUIActivate() {
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}
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public virtual void GetWindowContext(out NativeMethods.IOleInPlaceFrame ppFrame, out NativeMethods.IOleInPlaceUIWindow ppDoc, NativeMethods.COMRECT lprcPosRect, NativeMethods.COMRECT lprcClipRect, NativeMethods.tagOIFI lpFrameInfo) {
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ppFrame = (NativeMethods.IOleInPlaceFrame)this;
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ppDoc = null;
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NativeMethods.GetClientRect(parentControl.Handle, lprcPosRect);
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NativeMethods.GetClientRect(parentControl.Handle, lprcClipRect);
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lpFrameInfo.cb = System.Runtime.InteropServices.Marshal.SizeOf(typeof(NativeMethods.tagOIFI));
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lpFrameInfo.fMDIApp = 0;
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lpFrameInfo.hwndFrame = parentControl.Handle;
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lpFrameInfo.hAccel = IntPtr.Zero;
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lpFrameInfo.cAccelEntries = 0;
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}
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public virtual int Scroll(NativeMethods.tagSIZE scrollExtant) {
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return(NativeMethods.E_NOTIMPL);
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}
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public virtual void OnUIDeactivate(int fUndoable) {
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// NOTE, Microsoft, 7/99: Don't return E_NOTIMPL. Somehow doing nothing and returning S_OK
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// fixes trident hosting in Win2000.
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}
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public virtual void OnInPlaceDeactivate() {
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}
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public virtual void DiscardUndoState() {
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throw new COMException(SR.GetString(SR.MSHTMLHost_Not_Implemented), NativeMethods.E_NOTIMPL);
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}
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public virtual void DeactivateAndUndo() {
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}
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public virtual int OnPosRectChange(NativeMethods.COMRECT lprcPosRect) {
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return NativeMethods.S_OK;
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}
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///////////////////////////////////////////////////////////////////////////
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// IOleInPlaceFrame Implementation
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public virtual void GetBorder(NativeMethods.COMRECT lprectBorder) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual void RequestBorderSpace(NativeMethods.COMRECT pborderwidths) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual void SetBorderSpace(NativeMethods.COMRECT pborderwidths) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual void SetActiveObject(NativeMethods.IOleInPlaceActiveObject pActiveObject, string pszObjName) {
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// NOTE, Microsoft, 7/99: Don't return E_NOTIMPL. Somehow doing nothing and returning S_OK
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// fixes trident hosting in Win2000.
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// throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual void InsertMenus(IntPtr hmenuShared, object lpMenuWidths) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual void SetMenu(IntPtr hmenuShared, IntPtr holemenu, IntPtr hwndActiveObject) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual void RemoveMenus(IntPtr hmenuShared) {
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throw new COMException(String.Empty, NativeMethods.E_NOTIMPL);
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}
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public virtual void SetStatusText(string pszStatusText) {
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}
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public virtual void EnableModeless(int fEnable) {
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}
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public virtual int TranslateAccelerator(ref NativeMethods.MSG lpmsg, short wID) {
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return NativeMethods.S_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IDocHostUIHandler Implementation
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public virtual int ShowContextMenu(int dwID, NativeMethods.POINT pt, object pcmdtReserved, object pdispReserved) {
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return NativeMethods.S_OK;
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}
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public virtual int GetHostInfo(NativeMethods.DOCHOSTUIINFO info) {
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info.dwDoubleClick = NativeMethods.DOCHOSTUIDBLCLICK.DEFAULT;
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info.dwFlags = NativeMethods.DOCHOSTUIFLAG.FLAT_SCROLLBAR |
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NativeMethods.DOCHOSTUIFLAG.NO3DBORDER |
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NativeMethods.DOCHOSTUIFLAG.DIALOG |
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NativeMethods.DOCHOSTUIFLAG.DISABLE_SCRIPT_INACTIVE;
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return NativeMethods.S_OK;
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}
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public virtual int EnableModeless(bool fEnable) {
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return NativeMethods.S_OK;
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}
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public virtual int ShowUI(int dwID, NativeMethods.IOleInPlaceActiveObject activeObject, NativeMethods.IOleCommandTarget commandTarget, NativeMethods.IOleInPlaceFrame frame, NativeMethods.IOleInPlaceUIWindow doc) {
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return NativeMethods.S_OK;
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}
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public virtual int HideUI() {
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return NativeMethods.S_OK;
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}
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public virtual int UpdateUI() {
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return NativeMethods.S_OK;
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}
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public virtual int OnDocWindowActivate(bool fActivate) {
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return NativeMethods.E_NOTIMPL;
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}
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public virtual int OnFrameWindowActivate(bool fActivate) {
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return NativeMethods.E_NOTIMPL;
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}
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public virtual int ResizeBorder(NativeMethods.COMRECT rect, NativeMethods.IOleInPlaceUIWindow doc, bool fFrameWindow) {
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return NativeMethods.E_NOTIMPL;
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}
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public virtual int GetOptionKeyPath(string[] pbstrKey, int dw) {
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pbstrKey[0] = null;
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return NativeMethods.S_OK;
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}
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public virtual int GetDropTarget(NativeMethods.IOleDropTarget pDropTarget, out NativeMethods.IOleDropTarget ppDropTarget) {
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ppDropTarget = null;
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return NativeMethods.S_FALSE;
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}
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public virtual int GetExternal(out object ppDispatch) {
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ppDispatch = null;
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return NativeMethods.S_OK;
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}
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public virtual int TranslateAccelerator(ref NativeMethods.MSG msg, ref Guid group, int nCmdID) {
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return NativeMethods.S_OK;
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}
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public virtual int TranslateUrl(int dwTranslate, string strUrlIn, out string pstrUrlOut) {
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pstrUrlOut = null;
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return NativeMethods.E_NOTIMPL;
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}
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public virtual int FilterDataObject(NativeMethods.IOleDataObject pDO, out NativeMethods.IOleDataObject ppDORet) {
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ppDORet = null;
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return NativeMethods.S_OK;
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}
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///////////////////////////////////////////////////////////////////////////
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// Implementation
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/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite.CreateDocument"]/*' />
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/// <devdoc>
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/// Creates a new instance of mshtml and initializes it as a new document
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/// using its IPersistStreamInit.
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/// </devdoc>
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protected void CreateDocument() {
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try {
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// Create an instance of Trident
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tridentDocument = (NativeMethods.IHTMLDocument2)new NativeMethods.HTMLDocument();
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tridentOleObject = (NativeMethods.IOleObject)tridentDocument;
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// Initialize its client site
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tridentOleObject.SetClientSite((NativeMethods.IOleClientSite)this);
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// Initialize it
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NativeMethods.IPersistStreamInit psi = (NativeMethods.IPersistStreamInit)tridentDocument;
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psi.InitNew();
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}
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catch (Exception e) {
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Debug.Fail(e.ToString());
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throw e;
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}
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}
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/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite.ActivateDocument"]/*' />
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/// <devdoc>
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/// Activates the mshtml instance
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/// </devdoc>
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protected void ActivateDocument() {
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Debug.Assert(tridentOleObject != null,
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"How'd we get here when trident is null!");
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try {
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NativeMethods.COMRECT r = new NativeMethods.COMRECT();
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NativeMethods.GetClientRect(parentControl.Handle, r);
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tridentOleObject.DoVerb(NativeMethods.OLEIVERB_UIACTIVATE, IntPtr.Zero, (NativeMethods.IOleClientSite)this, 0, parentControl.Handle, r);
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}
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catch (Exception e) {
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Debug.Fail(e.ToString());
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}
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}
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}
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}
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