100 lines
3.7 KiB
C#
100 lines
3.7 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="WmlImageMapAdapter.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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#if WMLSUPPORT
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namespace System.Web.UI.WebControls.Adapters {
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using System.Globalization;
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using System.Web.UI.WebControls;
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using System.Web.UI.Adapters;
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using System.Collections.Specialized;
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using System.Web.Util;
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// Adapts the ImageMap for wml.
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public class WmlImageMapAdapter : ImageMapAdapter, IPostBackDataHandler, IPostBackEventHandler {
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protected internal override void OnInit(EventArgs e) {
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// NB: this is required because the control names do not match the controlID
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Page.RegisterRequiresPostBack(Control);
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base.OnInit(e);
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}
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protected internal override void Render(HtmlTextWriter writer) {
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if (Control.HotSpots.Count > 0) {
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HotSpotMode mapMode = Control.HotSpotMode;
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if (mapMode == HotSpotMode.NotSet) {
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mapMode = HotSpotMode.Navigate;
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}
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HotSpotMode spotMode;
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int hotSpotIndex = 0;
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string targetURL;
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string text;
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foreach (HotSpot item in Control.HotSpots) {
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text = item.AlternateText;
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if (text != null && text.Length == 0) {
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text = item.NavigateUrl;
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}
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spotMode = item.HotSpotMode;
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if (spotMode == HotSpotMode.NotSet) {
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spotMode = mapMode;
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}
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if (spotMode == HotSpotMode.PostBack) {
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PageAdapter.RenderPostBackEvent(writer, Control.ClientID, hotSpotIndex.ToString(CultureInfo.InvariantCulture),
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null, text);
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}
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else if (spotMode == HotSpotMode.Navigate) {
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targetURL = Control.ResolveClientUrl(item.NavigateUrl);
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targetURL = Control.GetCountClickUrl(targetURL);
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PageAdapter.RenderBeginHyperlink(writer, targetURL, true /* encode */, null, Control.AccessKey);
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writer.Write(text);
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PageAdapter.RenderEndHyperlink(writer);
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}
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else { //HotSpotMode.Inactive
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writer.Write(LiteralControlAdapterUtility.ProcessWmlLiteralText(text));
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}
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++hotSpotIndex;
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writer.WriteBreak();
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}
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}
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}
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/// <internalonly/>
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bool IPostBackDataHandler.LoadPostData(String key, NameValueCollection data) {
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return LoadPostData(key, data);
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}
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/// <internalonly/>
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protected virtual bool LoadPostData(String key, NameValueCollection data) {
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return false;
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}
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/// <internalonly/>
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void IPostBackDataHandler.RaisePostDataChangedEvent() {
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RaisePostDataChangedEvent();
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}
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/// <internalonly/>
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protected virtual void RaisePostDataChangedEvent() {
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}
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/// <internalonly/>
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void IPostBackEventHandler.RaisePostBackEvent(string eventArgument) {
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RaisePostBackEvent(eventArgument);
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}
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/// <internalonly/>
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protected virtual void RaisePostBackEvent(string eventArgument) {
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((IPostBackEventHandler)Control).RaisePostBackEvent(eventArgument);
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}
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}
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}
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#endif
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