UI/FormRegionPrivacyStatus.cs
author Dean Looyengoed
Fri, 19 Feb 2016 19:34:40 +0100
changeset 485 486b81348e82
parent 483 d0ec604f5f4e
child 501 158c070826dd
permissions -rw-r--r--
Add and implement method to determine if a PEPIdentity is valid for further processing.
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´╗┐using pEpCOMServerAdapterLib;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Runtime.InteropServices;
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using System.Windows.Forms;
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using Color = System.Drawing.Color;
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using Outlook = Microsoft.Office.Interop.Outlook;
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namespace pEp
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{
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    /// <summary>
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    /// Partial class for the privacy status form region that is displayed below every outlook message.
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    /// </summary>
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    partial class FormRegionPrivacyStatus
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    {
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        #region Form Region Factory
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        [Microsoft.Office.Tools.Outlook.FormRegionMessageClass(Microsoft.Office.Tools.Outlook.FormRegionMessageClassAttribute.Note)]
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        [Microsoft.Office.Tools.Outlook.FormRegionName("pEp.FormRegionPrivacyStatus")]
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        public partial class FormRegionPrivacyStatusFactory
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        {
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            // Occurs before the form region is initialized.
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            // To prevent the form region from appearing, set e.Cancel to true.
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            // Use e.OutlookItem to get a reference to the current Outlook item.
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            private void FormRegionPrivacyStatus_FormRegionInitializing(object sender, Microsoft.Office.Tools.Outlook.FormRegionInitializingEventArgs e)
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            {
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                WindowFormRegionCollection formRegions;
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                /* There is a Microsoft bug at least in Outlook 2013 and Windows 8.1
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                 * This bug causes multiple PrivacyStatus form regions to appear stacked on top of each other.
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                 * To trigger this bug, on an unencrypted server, click reply to compose an in-line response.
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                 * Then click to another tab such as People or Tasks. Then click back on the mail tab to view 
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                 * the original email again. Two form regions will be visible: 
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                 * (1) for the status during the in-line reply and 
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                 * (2) for the status of only the received message.
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                 * 
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                 * To fix this bug, any existing form regions are found and closed when initializing a new privacy status
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                 * form region.
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                 */
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                try
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                {
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                    formRegions = Globals.FormRegions[Globals.ThisAddIn.Application.ActiveExplorer()];
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                    if (formRegions.FormRegionPrivacyStatus != null)
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                    {
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                        /* Note: there seems to be no way to actually close the form region.
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                         * Therefore, this is as close as possible to actually closing it.
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                         * The actual form regions will be cleaned up as soon as another email is selected.
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                         */
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                        formRegions.FormRegionPrivacyStatus.OutlookFormRegion.Visible = false;
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                    }
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                }
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                catch { }
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                return;
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            }
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        }
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        #endregion
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        /* Notes:
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         * 
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         * Use this.OutlookItem to get a reference to the current Outlook item.
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         * Use this.OutlookFormRegion to get a reference to the form region.
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         * 
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         * UI State Managment:
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         * 
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         * The UI state is almost entirely set from the associated mail item data.
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         * However, a separate state class is maintained to represent the UI as some separation is needed.
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         * This logical separation MUST be maintained throughout the code.
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         * Specific cases are noted where possible.
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         * 
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         * The separate privacy status manager form state is also managed here.
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         * 
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         */
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        private CryptableMailItem associatedMailItem = null;
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        private bool              refreshOngoing     = false;
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        private bool              eventsAreConnected = false;
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        private FormManagePrivacyStatus managerForm = null;
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        // Data or controls not stored in the UI
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        private _pEp_color stateUIColorRating; // WARNING: Do NOT use this directly
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        /**************************************************************
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         * 
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         * Property Accessors
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         * 
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         *************************************************************/
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        /// <summary>
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        /// Gets or sets whether to send the associated cryptable mail item as unencrypted.
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        /// This forwards the call to the cryptable mail item but also refreshes the UI.
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        /// </summary>
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        public bool? SendUnencrypted
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        {
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            get
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            {
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                if (this.associatedMailItem != null)
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                {
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                    return (this.associatedMailItem.SendUnencrypted);
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                }
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                else
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                {
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                    return (null);
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                }
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            }
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            set
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            {
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                if (this.associatedMailItem != null)
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                {
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                    this.associatedMailItem.SendUnencrypted = value;
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                    this.UpdateUIFromMailItem();
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                }
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            }
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        }
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        /**************************************************************
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         * 
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         * Methods
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         * 
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         *************************************************************/
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        /// <summary>
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        /// Determines if this form region is running in an inspector window.
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        /// If not true, it is assumed to be within an explorer window.
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        /// </summary>
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        /// <returns>True if an inspector window, false if within an explorer.</returns>
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        private bool IsWithinInspector()
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        {
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            bool isWithinInspector = false;
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            Outlook.Explorer temp = null;
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            try
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            {
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                // Just try to cast to an explorer class
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                temp = (Outlook.Explorer)this.OutlookFormRegion.Parent;
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                isWithinInspector = false;
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            }
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            catch
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            {
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                isWithinInspector = true;
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            }
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            finally
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            {
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                if (temp != null)
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                {
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                    Marshal.ReleaseComObject(temp);
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                    temp = null;
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                }
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            }
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            return (isWithinInspector);
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        }
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        /// <summary>
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        /// Sets the cryptable mail item associated with this encryption status panel.
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        /// The associated mail item can then be accessed through its local variable.
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        /// </summary>
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        private void SetAssociatedMailItem()
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        {
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            bool errorOccurred = false;
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            Outlook.MailItem omi = null;
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            // Null check
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            if (!errorOccurred)
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            {
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                try
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                {
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                    if (this.OutlookItem == null)
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                    {
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                        errorOccurred = true;
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                    }
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                }
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                catch (COMException)
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                {
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                    errorOccurred = true;
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                }
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            }
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            // Attempt to get and cast the outlook mail item
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            if (!errorOccurred)
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            {
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                try
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                {
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                    omi = (Outlook.MailItem)this.OutlookItem;
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                }
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                catch
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                {
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                    errorOccurred = true;
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                }
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            }
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            // Finally set the associated mail item
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            if ((errorOccurred) ||
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                (omi == null))
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            {
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                this.associatedMailItem = null;
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            }
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            else
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            {
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                // Check if the associated mail item has already been set
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                if (this.associatedMailItem != null)
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                {
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                    // Only re-set the mail item if the EntryID has changed
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                    if (this.associatedMailItem.EntryID != omi.EntryID)
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                    {
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                        this.associatedMailItem = new CryptableMailItem(omi);
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                    }
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                }
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                else
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                {
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                    this.associatedMailItem = new CryptableMailItem(omi);
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                }
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            }
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            return;
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        }
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        /// <summary>
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        /// Completes the handshake process when the identity of a partner was previously marked as compromised.
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        /// </summary>
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        /// <param name="identityPartner">The identity of the partner to complete the handshake with.</param>
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        private void DoHandshakeForCompromisedKey(PEPIdentity identityPartner)
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        {
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            DialogResult result;
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            result = MessageBox.Show(this.ParentForm,
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                                     pEp.Properties.Resources.Message_WarningCompromisedKey,
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                                     pEp.Properties.Resources.Message_TitleConfirmOperation,
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                                     MessageBoxButtons.YesNo);
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            if (result == DialogResult.Yes)
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            {
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                this.DoHandshake(identityPartner);
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            }
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            return;
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        }
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        /// <summary>
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        /// Completes the handshake process where the identity of a partner is confirmed.
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        /// </summary>
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        /// <param name="identityPartner">The identity of the partner to complete the handshake with.</param>
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        private void DoHandshake(PEPIdentity identityPartner)
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        {
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            string ownFpr;
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            string partnerFpr;
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            string trustwordsShort;
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            string trustwordsFull;
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            string[] lines;
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            DialogResult result;
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            PEPIdentity me;
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            FormHandshake handshakeDialog;
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            FormHandshake.State state = new FormHandshake.State();
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            Globals.ThisAddIn.LogVerbose("doHandshake");
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            Globals.ThisAddIn.LogVerbose(identityPartner.Address);
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            // Process identities
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            if (identityPartner.Username == "")
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            {
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                identityPartner.Username = identityPartner.Address;
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            }
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            identityPartner.UserID = Globals.ThisAddIn.GetUserID(identityPartner.Address, identityPartner.Username);
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            me = PEPIdentity.GetMyIdentity(this.associatedMailItem);
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            // Calculate and add trustwords
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            this.CalcTrustwords(me, identityPartner, out trustwordsShort, out trustwordsFull);
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            state.TrustwordsShort = trustwordsShort;
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            state.TrustwordsFull = trustwordsFull;
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            // Calculate and add fingerprint
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            ownFpr = this.ToQuadruple(me.Fingerprint);
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            partnerFpr = this.ToQuadruple(identityPartner.Fingerprint);
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            if (me.Fingerprint.CompareTo(identityPartner.Fingerprint) > 0)
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            {
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                lines = new string[3];
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                lines[0] = pEp.Properties.Resources.PrivacyStatus_TrustwordsPartnerShortPartner + partnerFpr;
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                lines[2] = pEp.Properties.Resources.PrivacyStatus_TrustwordsPartnerShortMyself + ownFpr;
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                state.Fingerprint = lines;
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            }
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            else
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            {
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                lines = new string[3];
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                lines[0] = pEp.Properties.Resources.PrivacyStatus_TrustwordsOwnShortMyself + ownFpr;
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                lines[2] = pEp.Properties.Resources.PrivacyStatus_TrustwordsOwnShortPartner + partnerFpr;
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                state.Fingerprint = lines;
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            }
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            // Create and show handshake dialog
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            handshakeDialog = new FormHandshake(state);
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            handshakeDialog.StartPosition = FormStartPosition.CenterScreen;
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            result = handshakeDialog.ShowDialog(this);
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            this.ProcessDoHandshakeResult(result, identityPartner);
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            return;
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        }
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        /// <summary>
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        /// Processes the result of the do handshake dialog after a user makes a selection.
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        /// </summary>
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        /// <param name="result">The result of the handshake dialog selection.</param>
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        /// <param name="partner">The identity of the partner to handshake with.</param>
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        private void ProcessDoHandshakeResult(DialogResult result,
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                                              PEPIdentity partner)
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        {
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            pEp_identity_s identityPartner = ThisAddIn.pEp.update_identity(partner.ToCOMType());
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            switch (result)
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            {
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                case DialogResult.Yes:
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                    {
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                        // Check if key was previously compromised -- warning for this must be displayed earlier
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                        if (identityPartner.comm_type == _pEp_comm_type.pEp_ct_compromized)
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                        {
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                            ThisAddIn.pEp.key_reset_trust(ref identityPartner);
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                        }
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                        identityPartner = ThisAddIn.pEp.trust_personal_key(ref identityPartner);
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                        this.associatedMailItem.ColorRating = _pEp_color.pEp_rating_trusted;
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                        this.UpdateUIFromMailItem();
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                        // Update the manager form state
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                        if (this.managerForm != null)
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                        {
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                            this.managerForm.CopyStateToUI(this.GetManagerState());
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                        }
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                        break;
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                    }
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                case DialogResult.No:
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                    {
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                        ThisAddIn.pEp.key_compromized(ref identityPartner);
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                        identityPartner.comm_type = _pEp_comm_type.pEp_ct_compromized;
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                        identityPartner = ThisAddIn.pEp.update_identity(identityPartner);
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                        this.associatedMailItem.ColorRating = _pEp_color.pEp_rating_red;
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                        this.UpdateUIFromMailItem();
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                        // Update the manager form state
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                        if (this.managerForm != null)
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                        {
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                            this.managerForm.CopyStateToUI(this.GetManagerState());
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                        }
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                        break;
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                    }
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            }
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            return;
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        }
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        /// <summary>
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        /// Reverses any past handshake confirmation by unconfirming the given identity partner.
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        /// </summary>
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        /// <param name="partner">The identity of the partner to unconfirm.</param>
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        private void UndoHandshake(PEPIdentity partner)
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        {
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            pEp_identity_s identityPartner = ThisAddIn.pEp.update_identity(partner.ToCOMType());
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            ThisAddIn.pEp.key_reset_trust(ref identityPartner);
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            this.UpdateUIFromMailItem();
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            // Update the manager form state
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            if (this.managerForm != null)
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            {
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                this.managerForm.CopyStateToUI(this.GetManagerState());
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            }
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            return;
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        }
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        /// <summary>
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        /// Calculates both the short and full trustwords between the given personal identity and the identity partner.
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        /// </summary>
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        /// <param name="myIdentity">The personal identity.</param>
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        /// <param name="partnerIdentity">The identity of the partner.</param>
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        /// <param name="trustwordsShort">The short version of trustwords.</param>
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        /// <param name="trustwordsFull">The full/long version of trustwords.</param>
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        private void CalcTrustwords(PEPIdentity myIdentity,
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                                    PEPIdentity partnerIdentity,
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                                    out string trustwordsShort,
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                                    out string trustwordsFull)
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        {
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            string myShort;
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            string myLong;
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            string partnerShort;
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            string partnerLong;
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            myShort = ThisAddIn.pEp.trustwords(myIdentity.Fingerprint, max_words: 5).ToLower();
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            myLong = ThisAddIn.pEp.trustwords(myIdentity.Fingerprint).ToLower();
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            partnerShort = ThisAddIn.pEp.trustwords(partnerIdentity.Fingerprint, max_words: 5).ToLower();
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            partnerLong = ThisAddIn.pEp.trustwords(partnerIdentity.Fingerprint).ToLower();
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            if (myIdentity.Fingerprint.CompareTo(partnerIdentity.Fingerprint) > 0)
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            {
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                trustwordsShort = partnerShort + myShort;
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                trustwordsFull = partnerLong + myLong;
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            }
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            else
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            {
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                trustwordsShort = myShort + " " + partnerShort;
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                trustwordsFull = myLong + " " + partnerLong;
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            }
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            return;
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   416
        }
Dean@363
   417
Dean@363
   418
        /// <summary>
Dean@161
   419
        /// Formats the given text string as separated 4-character groups.
Dean@161
   420
        /// Example: 49422235FC99585B891C --> 4942 2235 FC99 585B 891C
Dean@161
   421
        /// </summary>
Dean@161
   422
        /// <param name="text">The text to format in 4-character groups.</param>
Dean@161
   423
        /// <returns>The re-formatted string.</returns>
Dean@161
   424
        private string ToQuadruple(string text)
Dean@159
   425
        {
Dean@159
   426
            List<string> result = new List<string>();
Dean@159
   427
Dean@161
   428
            if (text != null)
Dean@159
   429
            {
Dean@161
   430
                for (int i = 0; i < text.Length; i += 4)
Dean@159
   431
                {
Dean@161
   432
                    try
Dean@161
   433
                    {
Dean@161
   434
                        result.Add(text.Substring(i, 4));
Dean@161
   435
                    }
Dean@161
   436
                    catch (ArgumentOutOfRangeException)
Dean@161
   437
                    {
Dean@161
   438
                        result.Add(text.Substring(i));
Dean@161
   439
                        break;
Dean@161
   440
                    }
Dean@159
   441
                }
Dean@159
   442
            }
Dean@159
   443
Dean@159
   444
            return String.Join(" ", result);
Dean@159
   445
        }
markus@201
   446
Dean@196
   447
        /// <summary>
Dean@196
   448
        /// Makes the unencrypted preview form.
Dean@196
   449
        /// This gets the active form region then fills it's content.
Dean@196
   450
        /// </summary>
Dean@198
   451
        /// <returns>True if successful, otherwise false.</returns>
Dean@198
   452
        private bool MakePreview()
Dean@159
   453
        {
Dean@198
   454
            bool success = true;
Dean@198
   455
            bool isSuccessful;
Dean@198
   456
            byte[] rtfBody;
Dean@198
   457
            string subject;
Dean@159
   458
            WindowFormRegionCollection formRegions;
markus@201
   459
Dean@198
   460
            formRegions = Globals.FormRegions[Globals.ThisAddIn.Application.ActiveExplorer()];
Dean@159
   461
Dean@198
   462
            if ((formRegions != null) &&
Dean@198
   463
                (formRegions.FormRegionPreviewUnencrypted != null) &&
Dean@198
   464
                (formRegions.FormRegionPreviewUnencrypted.Visible))
Dean@198
   465
            {
Dean@198
   466
                // Attempt to the the RTF body
Dean@198
   467
                isSuccessful = this.associatedMailItem.MirrorTryGetRTFBody(out rtfBody);
Dean@198
   468
                if (isSuccessful == false)
Dean@198
   469
                {
Dean@198
   470
                    return (false);
Dean@198
   471
                }
Dean@159
   472
Dean@198
   473
                // Attempt to get the subject
Dean@198
   474
                isSuccessful = this.associatedMailItem.MirrorTryGetSubject(out subject);
Dean@198
   475
                if (isSuccessful == false)
Dean@159
   476
                {
Dean@198
   477
                    return (false);
Dean@159
   478
                }
Dean@196
   479
Dean@198
   480
                // Add data to the form
markus@201
   481
                formRegions.FormRegionPreviewUnencrypted.RichTextBoxPreview.Rtf = System.Text.Encoding.ASCII.GetString(rtfBody, 0, rtfBody.Length);
markus@201
   482
                formRegions.FormRegionPreviewUnencrypted.TextBoxSubject.Text = subject;
Dean@412
   483
                formRegions.FormRegionPreviewUnencrypted.TextBoxFrom.Text = this.associatedMailItem.From.Username + " <" + this.associatedMailItem.From.Address + ">";
Dean@198
   484
            }
Dean@198
   485
            else
Dean@198
   486
            {
Dean@198
   487
                success = false;
Dean@198
   488
            }
Dean@198
   489
Dean@198
   490
            return (success);
Dean@159
   491
        }
markus@201
   492
Dean@179
   493
        /// <summary>
Dean@279
   494
        /// Builds a new manager form state using this encryption state/mail item current state.
Dean@279
   495
        /// </summary>
Dean@279
   496
        /// <returns>A new manager form state.</returns>
Dean@313
   497
        private FormManagePrivacyStatus.State GetManagerState()
Dean@279
   498
        {
Dean@364
   499
            string trustwordsShort;
Dean@364
   500
            string trustwordsFull;
Dean@384
   501
            List<PEPIdentity> identities;
Dean@384
   502
            PEPIdentity myIdentity;
Dean@384
   503
            PEPIdentity incomingIdent;
Dean@259
   504
            _pEp_color identityPartnerColor;
Dean@259
   505
            SelectionItem item;
Dean@312
   506
            PrivacyState state = this.CopyUIToState();
Dean@313
   507
            FormManagePrivacyStatus.State managerState = new FormManagePrivacyStatus.State();
Dean@259
   508
Dean@332
   509
            // Resolve all recipients -- this ensures the identities list is correctly populated
Dean@332
   510
            this.associatedMailItem.ResolveAllRecipients();
Dean@332
   511
Dean@279
   512
            managerState.VisualState = state.Copy();
Dean@279
   513
            managerState.IsIncoming = this.associatedMailItem.IsIncoming;
Dean@259
   514
Dean@259
   515
            if (this.associatedMailItem.IsIncoming)
Dean@259
   516
            {
Dean@384
   517
                identities = new List<PEPIdentity>();
Dean@259
   518
Dean@259
   519
                // Add only one identity
Dean@384
   520
                incomingIdent = new PEPIdentity();
Dean@412
   521
                incomingIdent.Address = this.associatedMailItem.From.Address;
Dean@412
   522
                incomingIdent.Username = this.associatedMailItem.From.Username;
Dean@415
   523
                incomingIdent.UserID = Globals.ThisAddIn.GetUserID(incomingIdent.Address, incomingIdent.Username);
Dean@259
   524
Dean@384
   525
                identities.Add(incomingIdent);
Dean@259
   526
            }
Dean@259
   527
            else
Dean@259
   528
            {
Dean@395
   529
                identities = this.associatedMailItem.Recipients;
Dean@259
   530
            }
Dean@259
   531
Dean@366
   532
            // Get my identity
Dean@384
   533
            myIdentity = PEPIdentity.GetMyIdentity(this.associatedMailItem);
Dean@366
   534
Dean@279
   535
            // Add identities
Dean@394
   536
            identities = PEPIdentity.ToFlatList(identities);
Dean@279
   537
            managerState.Identities.Clear();
Dean@384
   538
            foreach (PEPIdentity ident in identities)
Dean@259
   539
            {
Dean@485
   540
                if (ident.IsValid())
Dean@485
   541
                {
Dean@485
   542
                    pEp_identity_s partnerIdentity_s = ThisAddIn.pEp.update_identity(ident.ToCOMType());
Dean@485
   543
                    PEPIdentity partnerIdentity = new PEPIdentity(partnerIdentity_s);
Dean@485
   544
                    identityPartnerColor = ThisAddIn.pEp.identity_color(partnerIdentity_s);
Dean@259
   545
Dean@485
   546
                    item = new SelectionItem();
Dean@485
   547
                    item.TextLine1 = partnerIdentity.Username;
Dean@485
   548
                    item.TextLine2 = partnerIdentity.Address;
Dean@259
   549
Dean@485
   550
                    // Calculate trustwords
Dean@485
   551
                    this.CalcTrustwords(myIdentity,
Dean@485
   552
                                        partnerIdentity,
Dean@485
   553
                                        out trustwordsShort,
Dean@485
   554
                                        out trustwordsFull);
Dean@364
   555
Dean@485
   556
                    // Don't show both the user name and address if they are the same
Dean@485
   557
                    if ((item.TextLine1 != null) &&
Dean@485
   558
                        (item.TextLine2 != null) &&
Dean@485
   559
                        (item.TextLine1 == item.TextLine2))
Dean@485
   560
                    {
Dean@485
   561
                        item.IsTwoTextLinesVisible = false;
Dean@485
   562
                    }
Dean@332
   563
Dean@485
   564
                    // Set image
Dean@485
   565
                    switch (PrivacyState.ConvertRatingToPrivacyColor(identityPartnerColor))
Dean@485
   566
                    {
Dean@485
   567
                        case PrivacyState.PrivacyColor.Green:
Dean@485
   568
                            item.ItemImage = pEp.Properties.Resources.ImagePrivacyStatusGreen;
Dean@485
   569
                            break;
Dean@485
   570
                        case PrivacyState.PrivacyColor.Yellow:
Dean@485
   571
                            item.ItemImage = pEp.Properties.Resources.ImagePrivacyStatusYellow;
Dean@485
   572
                            break;
Dean@485
   573
                        case PrivacyState.PrivacyColor.Red:
Dean@485
   574
                            item.ItemImage = pEp.Properties.Resources.ImagePrivacyStatusRed;
Dean@485
   575
                            break;
Dean@485
   576
                        case PrivacyState.PrivacyColor.NoColor:
Dean@485
   577
                            item.ItemImage = pEp.Properties.Resources.ImagePrivacyStatusNoColor;
Dean@485
   578
                            break;
Dean@485
   579
                        default:
Dean@485
   580
                            item.ItemImage = null;
Dean@485
   581
                            break;
Dean@485
   582
                    }
Dean@259
   583
Dean@485
   584
                    // Set button
Dean@485
   585
                    if (myIdentity.Equals(partnerIdentity) == false)
Dean@366
   586
                    {
Dean@485
   587
                        if (partnerIdentity.CommunicationType >= _pEp_comm_type.pEp_ct_confirmed_encryption)
Dean@485
   588
                        {
Dean@485
   589
                            // Undo handshake
Dean@485
   590
                            item.TextButton = pEp.Properties.Resources.PrivacyStatus_StopTrusting;
Dean@485
   591
                            item.IsButtonVisible = true;
Dean@485
   592
                            item.ButtonOnClick = (x, y) => { this.UndoHandshake(partnerIdentity); };
Dean@356
   593
Dean@485
   594
                            item.IsExpandable = false;
Dean@485
   595
                        }
Dean@485
   596
                        else if (partnerIdentity.CommunicationType >= _pEp_comm_type.pEp_ct_unconfirmed_encryption &&
Dean@485
   597
                                 partnerIdentity.CommunicationType < _pEp_comm_type.pEp_ct_confirmed_encryption)
Dean@485
   598
                        {
Dean@485
   599
                            // Do handshake
Dean@485
   600
                            item.TextButton = pEp.Properties.Resources.PrivacyStatus_HandshakeAdvanced;
Dean@485
   601
                            item.IsButtonVisible = true;
Dean@485
   602
                            item.ButtonOnClick = (x, y) => { this.DoHandshake(partnerIdentity); };
Dean@356
   603
Dean@485
   604
                            item.IsExpandable = true;
Dean@485
   605
                            item.ExpandedText = Properties.Resources.PrivacyStatus_TrustwordDesc + "\n\n" +
Dean@485
   606
                                                trustwordsShort;
Dean@447
   607
Dean@485
   608
                            item.ExpandedButton1Text = Properties.Resources.PrivacyStatus_SelectTrust;
Dean@485
   609
                            item.ExpandedButton1OnClick = (x, y) => { this.ProcessDoHandshakeResult(DialogResult.Yes, partnerIdentity); };
Dean@485
   610
                            item.ExpandedButton1BackColor = PrivacyState.COLOR_GREEN;
Dean@485
   611
                            item.ExpandedButton1ForeColor = Color.White;
Dean@447
   612
Dean@485
   613
                            item.ExpandedButton2Text = Properties.Resources.PrivacyStatus_SelectMistrust;
Dean@485
   614
                            item.ExpandedButton2OnClick = (x, y) => { this.ProcessDoHandshakeResult(DialogResult.No, partnerIdentity); };
Dean@485
   615
                            item.ExpandedButton2BackColor = PrivacyState.COLOR_RED;
Dean@485
   616
                            item.ExpandedButton2ForeColor = Color.White;
Dean@485
   617
                        }
Dean@485
   618
                        else if (partnerIdentity.CommunicationType == _pEp_comm_type.pEp_ct_compromized)
Dean@485
   619
                        {
Dean@485
   620
                            // Redo handshake with confirmation
Dean@485
   621
                            item.TextButton = pEp.Properties.Resources.PrivacyStatus_Handshake;
Dean@485
   622
                            item.IsButtonVisible = true;
Dean@485
   623
                            item.ButtonOnClick = (x, y) => { this.DoHandshakeForCompromisedKey(partnerIdentity); };
Dean@485
   624
                        }
Dean@485
   625
                        else
Dean@485
   626
                        {
Dean@485
   627
                            item.IsButtonVisible = false;
Dean@485
   628
                        }
Dean@366
   629
                    }
Dean@366
   630
                    else
Dean@366
   631
                    {
Dean@366
   632
                        item.IsButtonVisible = false;
Dean@366
   633
                    }
Dean@281
   634
                }
Dean@485
   635
                else // Invalid identity
Dean@259
   636
                {
Dean@485
   637
                    item = new SelectionItem();
Dean@485
   638
                    item.TextLine1 = ident.Username;
Dean@485
   639
                    item.TextLine2 = ident.Address;
Dean@485
   640
                    item.ItemImage = null;
Dean@485
   641
                    item.IsTwoTextLinesVisible = true;
Dean@259
   642
                    item.IsButtonVisible = false;
Dean@259
   643
                }
Dean@259
   644
Dean@279
   645
                managerState.Identities.Add(item);
Dean@259
   646
            }
Dean@259
   647
Dean@375
   648
            // Attempt to select the first identity requiring a handshake
Dean@375
   649
            for (int i = 0; i < managerState.Identities.Count; i++)
Dean@375
   650
            {
Dean@375
   651
                // Determine if it's a handshake identity by simply seeing if it's expandable
Dean@375
   652
                if (managerState.Identities[i].IsExpandable)
Dean@375
   653
                {
Dean@375
   654
                    managerState.SelectedIdentityIndex = i;
Dean@375
   655
                    break;
Dean@375
   656
                }
Dean@375
   657
            }
Dean@375
   658
Dean@279
   659
            return (managerState);
Dean@279
   660
        }
Dean@279
   661
Dean@279
   662
        /// <summary>
Dean@279
   663
        /// Builds the latest state of the encryption status manager then shows the UI.
Dean@279
   664
        /// </summary>
Dean@279
   665
        private void BuildAndShowManager()
Dean@279
   666
        {
Dean@279
   667
            DialogResult result;
Dean@313
   668
            FormManagePrivacyStatus form;
Dean@313
   669
            FormManagePrivacyStatus.State stateOut;
Dean@279
   670
Dean@483
   671
            try
Dean@483
   672
            {
Dean@483
   673
                // Show the form
Dean@483
   674
                form = new FormManagePrivacyStatus();
Dean@483
   675
                form.StartPosition = FormStartPosition.CenterScreen;
Dean@259
   676
Dean@483
   677
                this.managerForm = form;
Dean@483
   678
                result = form.ShowDialog(this.ParentForm, this.GetManagerState(), out stateOut); // Must show as dialog to block code
Dean@483
   679
            }
Dean@483
   680
            catch (Exception ex)
Dean@483
   681
            {
Dean@483
   682
                GlobalExceptionHandler.StopAndSendCrashReport(ex);
Dean@483
   683
            }
Dean@259
   684
Dean@259
   685
            return;
Dean@259
   686
        }
Dean@259
   687
Dean@259
   688
        /// <summary>
Dean@179
   689
        /// Updates the status of the UI state based on the associated mail item.
Dean@179
   690
        /// Any previous state changes in the UI are preserved.
Dean@179
   691
        /// </summary>
Dean@179
   692
        private void UpdateUIFromMailItem()
Dean@159
   693
        {
Dean@312
   694
            PrivacyState state;
Dean@342
   695
            bool? sendUnencryptedProperty;
Dean@159
   696
Dean@173
   697
            if (this.associatedMailItem != null)
Dean@159
   698
            {
Dean@342
   699
                sendUnencryptedProperty = this.associatedMailItem.SendUnencrypted;
Dean@342
   700
Dean@342
   701
                if ((sendUnencryptedProperty != null) &&
Dean@342
   702
                    ((bool)sendUnencryptedProperty == true))
Dean@159
   703
                {
Dean@342
   704
                    // Force unencrypted
Dean@312
   705
                    state = new PrivacyState(_pEp_color.pEp_rating_unencrypted);
Dean@159
   706
                }
Dean@159
   707
                else
Dean@159
   708
                {
Dean@312
   709
                    state = new PrivacyState(this.associatedMailItem.ColorRating);
Dean@159
   710
                }
Dean@179
   711
Dean@179
   712
                this.CopyStateToUI(state);
Dean@159
   713
            }
Dean@159
   714
Dean@179
   715
            return;
Dean@159
   716
        }
Dean@159
   717
Dean@172
   718
        #region StateMethods
Dean@172
   719
Dean@172
   720
        /// <summary>
Dean@172
   721
        /// Connects or disconnects all control events from the UI.
Dean@172
   722
        /// </summary>
Dean@172
   723
        /// <param name="connect">True to connect events, false to disconnect.</param>
Dean@172
   724
        private void ConnectEvents(bool connect)
Dean@172
   725
        {
Dean@172
   726
            // Connect events only if not already connected
markus@201
   727
            if ((connect == true) &&
Dean@172
   728
                (this.eventsAreConnected == false))
Dean@172
   729
            {
Dean@312
   730
                this.ButtonPrivacyStatus.Click += this.ButtonPrivacyStatus_Click;
Dean@312
   731
                this.ButtonPrivacyStatus.MouseUp += this.ButtonPrivacyStatus_MouseUp;
Dean@179
   732
Dean@172
   733
                this.eventsAreConnected = true;
Dean@172
   734
            }
Dean@172
   735
            // Always attempt to disconnect
Dean@172
   736
            else if (connect == false)
Dean@172
   737
            {
Dean@312
   738
                this.ButtonPrivacyStatus.Click -= this.ButtonPrivacyStatus_Click;
Dean@312
   739
                this.ButtonPrivacyStatus.MouseUp -= this.ButtonPrivacyStatus_MouseUp;
Dean@179
   740
Dean@172
   741
                this.eventsAreConnected = false;
Dean@172
   742
            }
Dean@172
   743
Dean@172
   744
            return;
Dean@172
   745
        }
Dean@172
   746
Dean@172
   747
        /// <summary>
Dean@172
   748
        /// Refreshes the UI by reloading the state.
Dean@172
   749
        /// </summary>
Dean@172
   750
        private void RefreshUI()
Dean@172
   751
        {
Dean@172
   752
            this.CopyStateToUI(this.CopyUIToState());
Dean@172
   753
            return;
Dean@172
   754
        }
Dean@172
   755
Dean@172
   756
        /// <summary>
Dean@172
   757
        /// Copies the given state to the UI.
Dean@172
   758
        /// Events are turned off until the process is complete.
Dean@172
   759
        /// </summary>
Dean@172
   760
        /// <param name="state">The state to set to the UI.</param>
Dean@312
   761
        private void CopyStateToUI(PrivacyState state)
Dean@172
   762
        {
Dean@172
   763
            this.ConnectEvents(false);
markus@201
   764
Dean@172
   765
            ///////////////////////////////////////////////////////////
Dean@172
   766
            // Set UI data
Dean@172
   767
            ///////////////////////////////////////////////////////////
Dean@172
   768
Dean@179
   769
            // Save UI state maintained outside of controls
Dean@312
   770
            this.stateUIColorRating = state.PrivacyStatus;
Dean@179
   771
Dean@312
   772
            this.ButtonPrivacyStatus.BackColor = state.BackgroundColor;
Dean@312
   773
            this.ButtonPrivacyStatus.ForeColor = state.ForegroundColor;
Dean@312
   774
            this.ButtonPrivacyStatus.Text = state.ShortText;
Dean@172
   775
Dean@172
   776
            this.ConnectEvents(true);
Dean@172
   777
Dean@172
   778
            return;
Dean@172
   779
        }
Dean@172
   780
Dean@172
   781
        /// <summary>
Dean@172
   782
        /// Copies the UI to a new state.
Dean@172
   783
        /// </summary>
Dean@172
   784
        /// <returns>The state of the UI.</returns>
Dean@312
   785
        private PrivacyState CopyUIToState()
Dean@172
   786
        {
Dean@312
   787
            return (new PrivacyState(this.stateUIColorRating));
Dean@172
   788
        }
Dean@172
   789
Dean@172
   790
        #endregion
Dean@172
   791
Dean@159
   792
        /**************************************************************
Dean@159
   793
         * 
Dean@159
   794
         * Event Handling
Dean@159
   795
         * 
Dean@159
   796
         *************************************************************/
Dean@159
   797
Dean@159
   798
        /// <summary>
Dean@159
   799
        /// Event handler that is called before the form region is displayed.
Dean@159
   800
        /// </summary>
Dean@312
   801
        private void FormRegionPrivacyStatus_FormRegionShowing(object sender, System.EventArgs e)
Dean@159
   802
        {
Dean@173
   803
            this.SetAssociatedMailItem();
Dean@173
   804
Dean@438
   805
            // Set background color
Dean@438
   806
            if (this.IsWithinInspector())
Dean@438
   807
            {
Dean@438
   808
                this.BackColor = SystemColors.ButtonFace;
Dean@438
   809
            }
Dean@438
   810
            else
Dean@438
   811
            {
Dean@438
   812
                this.BackColor = SystemColors.Window;
Dean@438
   813
            }
Dean@438
   814
Dean@199
   815
            // Connect cryptable mail item events
Dean@189
   816
            if (this.associatedMailItem != null)
Dean@159
   817
            {
Dean@159
   818
                try
Dean@159
   819
                {
Dean@445
   820
                    this.associatedMailItem.PropertyChanged += MailItem_PropertyChanged;
Dean@179
   821
Dean@189
   822
                    if (this.associatedMailItem.IsInEncryptedStore &&
Dean@198
   823
                        this.associatedMailItem.IsPGPEncrypted)
Dean@159
   824
                    {
Dean@189
   825
                        this.associatedMailItem.Open += MailItem_Open;
Dean@159
   826
                    }
Dean@159
   827
                }
Dean@159
   828
                catch { }
Dean@179
   829
            }
Dean@159
   830
Dean@179
   831
            // Set the default UI state
Dean@312
   832
            this.CopyStateToUI(new PrivacyState());
Dean@179
   833
Dean@199
   834
            // Call the timer tick method manually to refresh data
Dean@199
   835
            this.TimerRefresh_Tick(null, new EventArgs());
Dean@179
   836
Dean@179
   837
            return;
Dean@159
   838
        }
Dean@159
   839
Dean@159
   840
        /// <summary>
Dean@159
   841
        /// Event handler for when the form region is closed.
Dean@159
   842
        /// </summary>
Dean@312
   843
        private void FormRegionPrivacyStatus_FormRegionClosed(object sender, System.EventArgs e)
Dean@159
   844
        {
Dean@199
   845
            // Disconnect cryptable mail item events
Dean@190
   846
            if (this.associatedMailItem != null)
Dean@179
   847
            {
Dean@179
   848
                try
Dean@179
   849
                {
Dean@445
   850
                    this.associatedMailItem.PropertyChanged -= MailItem_PropertyChanged;
markus@201
   851
                    this.associatedMailItem.Open -= MailItem_Open;
Dean@179
   852
                }
Dean@179
   853
                catch { }
Dean@179
   854
            }
Dean@179
   855
Dean@179
   856
            return;
Dean@179
   857
        }
Dean@179
   858
Dean@179
   859
        /// <summary>
Dean@179
   860
        /// Event handler called after the refresh timer has elapsed.
Dean@179
   861
        /// </summary>
Dean@179
   862
        private void TimerRefresh_Tick(object sender, EventArgs e)
Dean@179
   863
        {
Dean@199
   864
            bool tryAgain = false;
Dean@199
   865
            bool isSuccessful;
Dean@179
   866
            this.TimerRefresh.Enabled = false; // Only once
markus@201
   867
Dean@179
   868
            // Ensure the tick method is not called more than once
Dean@179
   869
            if (refreshOngoing == false)
Dean@179
   870
            {
Dean@179
   871
                this.refreshOngoing = true;
Dean@179
   872
Dean@179
   873
                if (this.associatedMailItem != null)
Dean@179
   874
                {
Dean@179
   875
                    if (this.associatedMailItem.DownloadState == Outlook.OlDownloadState.olFullItem)
Dean@179
   876
                    {
Dean@179
   877
                        this.UpdateUIFromMailItem();
Dean@199
   878
Dean@199
   879
                        /* Create the unencrypted preview if the mail item is encrypted and
Dean@199
   880
                         * it is in an encrypted (untrusted) store
Dean@199
   881
                         * 
Dean@312
   882
                         * This is done here because FormRegionPrivacyStatus has the cryptable mail item and
Dean@199
   883
                         * it also is initialized after FormRegionPreviewUnencrypted.
Dean@199
   884
                         */
Dean@199
   885
                        if (this.associatedMailItem.IsInEncryptedStore &&
Dean@199
   886
                            this.associatedMailItem.IsPGPEncrypted)
Dean@199
   887
                        {
Dean@199
   888
                            isSuccessful = this.MakePreview();
Dean@199
   889
Dean@199
   890
                            if (isSuccessful == false)
Dean@199
   891
                            {
Dean@199
   892
                                tryAgain = true;
Dean@199
   893
                            }
Dean@199
   894
                        }
Dean@179
   895
                    }
Dean@179
   896
                    else
Dean@179
   897
                    {
Dean@179
   898
                        this.associatedMailItem.MarkForDownload = Outlook.OlRemoteStatus.olMarkedForDownload;
Dean@199
   899
                        tryAgain = true;
Dean@179
   900
                    }
Dean@179
   901
                }
Dean@179
   902
Dean@199
   903
                // Set the timer to refresh again later automatically
Dean@199
   904
                if (tryAgain)
Dean@199
   905
                {
Dean@199
   906
                    this.TimerRefresh.Interval = 100;
Dean@199
   907
                    this.TimerRefresh.Enabled = true;
Dean@199
   908
                }
Dean@199
   909
Dean@179
   910
                this.refreshOngoing = false;
Dean@179
   911
            }
Dean@175
   912
Dean@159
   913
            return;
Dean@159
   914
        }
Dean@159
   915
Dean@169
   916
        /// <summary>
Dean@169
   917
        /// Event handler for when a mail item is being opened in an inspector.
Dean@180
   918
        /// See: https://msdn.microsoft.com/en-us/library/office/ff865989.aspx
Dean@169
   919
        /// </summary>
Dean@169
   920
        /// <param name="cancel">Whether to cancel the event: Value is False when the event occurs. 
Dean@169
   921
        /// If the event procedure sets this argument to True, the open operation is not completed 
Dean@169
   922
        /// and the inspector is not displayed.</param>
Dean@169
   923
        private void MailItem_Open(ref bool cancel)
Dean@159
   924
        {
Dean@173
   925
            if (this.associatedMailItem != null && this.associatedMailItem.MirrorDisplay())
Dean@169
   926
            {
Dean@169
   927
                cancel = true;
Dean@169
   928
            }
Dean@169
   929
Dean@169
   930
            return;
Dean@159
   931
        }
Dean@159
   932
Dean@169
   933
        /// <summary>
Dean@169
   934
        /// Event handler for when a mail item property is changed.
Dean@169
   935
        /// See: https://msdn.microsoft.com/en-us/library/office/ff866739.aspx
Dean@169
   936
        /// </summary>
Dean@169
   937
        /// <param name="propertyName">The name of the property that was changed.</param>
Dean@445
   938
        private void MailItem_PropertyChanged(object sender, PropertyChangedEventArgs e)
Dean@159
   939
        {
Dean@445
   940
            switch (e.PropertyName.ToUpper())
Dean@159
   941
            {
Dean@179
   942
                case "TO":
Dean@179
   943
                    // Start the refresh timer
Dean@179
   944
                    this.TimerRefresh.Enabled = true;
Dean@159
   945
                    break;
Dean@159
   946
                // Outlook bug: there are always both events, so one is enough
Dean@159
   947
                //case "CC":
Dean@179
   948
                //    // Start the refresh timer
Dean@179
   949
                //    this.TimerRefresh.Enabled = true;
Dean@159
   950
                //    break;
Dean@159
   951
            }
Dean@169
   952
Dean@169
   953
            return;
Dean@159
   954
        }
Dean@159
   955
Dean@179
   956
        /// <summary>
Dean@312
   957
        /// Event handler for when the privacy status button is clicked.
Dean@179
   958
        /// </summary>
Dean@312
   959
        private void ButtonPrivacyStatus_Click(object sender, EventArgs e)
vb@133
   960
        {
Dean@310
   961
            this.BuildAndShowManager();
Dean@179
   962
            return;
vb@133
   963
        }
vb@133
   964
Dean@179
   965
        /// <summary>
Dean@312
   966
        /// Event handler for when a mouse button is released over the privacy status button.
Dean@179
   967
        /// </summary>
Dean@312
   968
        private void ButtonPrivacyStatus_MouseUp(object sender, MouseEventArgs e)
vb@133
   969
        {
Dean@179
   970
            return;
vb@133
   971
        }
vb@133
   972
    }
vb@133
   973
}