/// <summary>Begins an editable wrapper that can be used to edit a single property in a view.</summary>
/// <param name="html"></param>
/// <param name="item"></param>
/// <param name="displayableName"></param>
/// <returns>A disposable object that must be called to close the editable wrapper element.</returns>
public static IDisposable BeginEditableWrapper(this HtmlHelper html, ContentItem item, string displayableName)
{
if (ControlPanel.GetState(html.ContentEngine()) == ControlPanelState.DragDrop)
{
return(WebExtensions.GetEditableWrapper(item, true, displayableName, html.ContentEngine().Definitions.GetDefinition(item).Displayables[displayableName], html.ViewContext.Writer));
}
else
{
return(new EmptyDisposable());
}
}
private static string Plugins(HtmlHelper html, ContentItem item, ControlPanelState state)
{
ContentItem start = html.StartPage();
ContentItem root = html.RootPage();
Page p = new Page();
foreach (IControlPanelPlugin plugin in html.ContentEngine().Resolve <IPluginFinder>().GetPlugins <IControlPanelPlugin>())
{
var span = new System.Web.UI.HtmlControls.HtmlGenericControl("span");
span.Attributes["class"] = "control";
var pluginControl = plugin.AddTo(span, new PluginContext(new SelectionUtility(item, null), start, root, state, html.ContentEngine(), html.ViewContext.HttpContext));
if (pluginControl != null)
{
p.Controls.Add(span);
}
}
using (var sw = new StringWriter())
using (var htw = new HtmlTextWriter(sw))
{
p.RenderControl(htw);
return(sw.ToString());
}
}
/// <summary>Creates a navigation using unordered list elements.</summary>
public static N2.Web.Tree Tree(this HtmlHelper html,
ContentItem startsFrom = null,
ContentItem current = null,
int takeLevels = 2,
bool parallelRoot = true,
bool appendCreatorNode = false,
ItemFilter filter = null,
object htmlAttributes = null)
{
if (startsFrom == null)
{
startsFrom = html.StartPage();
}
if (current == null)
{
current = html.CurrentPage();
}
if (filter == null)
{
filter = new NavigationFilter(html.ViewContext.HttpContext.User, html.ContentEngine().SecurityManager);
}
var builder = parallelRoot
? (HierarchyBuilder) new ParallelRootHierarchyBuilder(startsFrom, takeLevels)
: (HierarchyBuilder) new TreeHierarchyBuilder(startsFrom, takeLevels);
if (builder == null)
{
throw new ArgumentException("builder == null");
}
if (appendCreatorNode && ControlPanelExtensions.GetControlPanelState(html).IsFlagSet(ControlPanelState.DragDrop))
{
builder.GetChildren = (i) => i == null ? null : i.Children.FindNavigatablePages().Where(filter).AppendCreatorNode(html.ContentEngine(), i);
}
else
{
builder.GetChildren = (i) => i == null ? null : i.Children.FindNavigatablePages().Where(filter);
}
var tree = N2.Web.Tree.Using(builder);
if (htmlAttributes != null)
{
tree.Tag(BootstrapTagAlterations(startsFrom, current, htmlAttributes));
}
ClassifyAnchors(startsFrom, current, parallelRoot, tree);
return(tree);
}
/// <summary>
/// Build a tree that is bootstrap friendly
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="helper"></param>
/// <param name="startFrom"></param>
/// <param name="currentItem"></param>
/// <param name="takeLevel"></param>
/// <param name="filter"></param>
/// <param name="appendCreatorNode"></param>
/// <param name="includeRoot"></param>
/// <param name="onHoverDropdowns"></param>
/// <returns></returns>
public static N2.Web.Tree BootstrapTree <TModel>(this HtmlHelper <TModel> helper,
ContentItem startFrom = null,
ContentItem currentItem = null,
int takeLevel = 2,
ItemFilter filter = null,
bool appendCreatorNode = false,
bool includeRoot = true,
bool onHoverDropdowns = false)
{
// prep
if (startFrom == null)
{
startFrom = helper.StartPage();
}
if (currentItem == null)
{
currentItem = helper.CurrentPage();
}
if (filter == null)
{
filter = new NavigationFilter(helper.ViewContext.RequestContext.HttpContext.User, helper.ContentEngine().SecurityManager);
}
HierarchyBuilder builder = new ParallelRootHierarchyBuilder(startFrom, takeLevel);
builder.GetChildren = (builder.GetChildren = (item) =>
{
var items = item.Children.Where(filter);
if (appendCreatorNode && item.IsPage && helper.GetControlPanelState().IsFlagSet(ControlPanelState.DragDrop))
{
items = items.AppendCreatorNode(helper.ContentEngine(), item);
}
return(items.ToList());
});
var node = builder.Build();
if (!includeRoot)
{
node.Children.RemoveAt(0);
}
var tree = N2.Web.Tree.Using(node);
tree.HtmlAttibutes(new { @class = "nav" });
ClassifyAnchors(startFrom, currentItem, tree);
return(tree);
}
public static HelperResult OutputCache(this HtmlHelper html,
Func <string, HelperResult> template,
string cacheKey = null,
bool?perPage = null,
int?perAncestorAtLevel = null,
DateTime?absoluteExpiration = null,
TimeSpan?slidingExpiration = null)
{
if (html.ViewContext.RequestContext.HttpContext.Request.QueryString["edit"] != null)
{
return(template(""));
}
string composedKey = CreateCacheKey(html, template, cacheKey, perPage, perAncestorAtLevel);
var cache = html.ContentEngine().Resolve <N2.Web.CacheWrapper>();
var cachedResults = cache.Get <string>(composedKey);
if (cachedResults != null)
{
return(new HelperResult(tw => tw.Write(cachedResults)));
}
return(new HelperResult(tw =>
{
using (var sw = new StringWriter())
{
var originalWriter = html.ViewContext.Writer;
try
{
html.ViewContext.Writer = sw; // in case something renders directly to the stream
template(composedKey).WriteTo(sw);
var results = sw.ToString();
cache.Add(composedKey, results, new CacheOptions {
AbsoluteExpiration = absoluteExpiration ?? System.Web.Caching.Cache.NoAbsoluteExpiration, SlidingExpiration = slidingExpiration ?? System.Web.Caching.Cache.NoSlidingExpiration
});
tw.Write(results);
}
finally
{
html.ViewContext.Writer = originalWriter;
}
}
}));
}
private static string Plugins(HtmlHelper html, ContentItem item, ControlPanelState state)
{
ContentItem start = html.StartPage();
ContentItem root = html.RootPage();
Page p = new Page();
foreach (IControlPanelPlugin plugin in html.ContentEngine().Resolve <IPluginFinder>().GetPlugins <IControlPanelPlugin>())
{
plugin.AddTo(p, new PluginContext(new SelectionUtility(item, null), start, root, state, html.ContentEngine(), html.ViewContext.HttpContext));
}
using (var sw = new StringWriter())
using (var htw = new HtmlTextWriter(sw))
{
p.RenderControl(htw);
return(sw.ToString());
}
}
public static void RenderControlPanel(this HtmlHelper html)
{
var engine = html.ContentEngine();
var item = html.CurrentItem() ?? html.StartPage();
if (!engine.SecurityManager.IsEditor(html.ViewContext.HttpContext.User))
{
return;
}
if (RegistrationExtensions.GetRegistrationExpression(html) != null)
{
return;
}
var state = ControlPanel.GetState(html.ViewContext.HttpContext.User, html.ViewContext.HttpContext.Request.QueryString);
var settings = new
{
NavigationUrl = engine.ManagementPaths.GetNavigationUrl(item),
ManagementUrl = engine.ManagementPaths.GetManagementInterfaceUrl(),
Path = item.Path,
Plugins = Plugins(html, item, state),
Definitions = Definitions(html, engine, item, state),
Version = typeof(ContentItem).Assembly.GetName().Version.ToString(),
Permission = engine.GetContentAdapter <NodeAdapter>(item).GetMaximumPermission(item)
};
html.Resources().JQuery()
.JQueryPlugins()
.JQueryUi()
.JavaScript("{ManagementUrl}/Resources/Js/parts.js").StyleSheet("{ManagementUrl}/Resources/Css/parts.css");
string controlPanelHtml = format.Replace(settings);
html.ViewContext.Writer.Write(controlPanelHtml);
if (state == ControlPanelState.DragDrop)
{
html.Resources().JavaScript(@"window.n2ddcp = new n2DragDrop();", ScriptOptions.DocumentReady);
}
}
/// <summary>Gets the curent state of the control panel.</summary>
/// <param name="html"></param>
/// <returns></returns>
public static ControlPanelState GetControlPanelState(this HtmlHelper html)
{
return(UI.WebControls.ControlPanel.GetState(html.ContentEngine()));
}
private static string Plugins(HtmlHelper html, ContentItem item, ControlPanelState state)
{
ContentItem start = html.StartPage();
ContentItem root = html.RootPage();
Page p = new Page();
foreach (IControlPanelPlugin plugin in html.ContentEngine().Resolve<IPluginFinder>().GetPlugins<IControlPanelPlugin>())
{
plugin.AddTo(p, new PluginContext(new SelectionUtility(item, null), start, root, state, html.ContentEngine(), html.ViewContext.HttpContext));
}
using (var sw = new StringWriter())
using (var htw = new HtmlTextWriter(sw))
{
p.RenderControl(htw);
return sw.ToString();
}
}
public ViewContentHelper(HtmlHelper html)
: base(html.ContentEngine(), () => html.CurrentPath())
{
this.html = html;
}
public LegacyControlPanelHelper(HtmlHelper html)
: base(html.ContentEngine(), html.CurrentItem(), html.ViewContext.Writer, html.ViewContext.GetResourceStateCollection())
{
this.Html = html;
}
private static string Plugins(HtmlHelper html, ContentItem item, ControlPanelState state)
{
ContentItem start = html.StartPage();
ContentItem root = html.RootPage();
Page p = new Page();
foreach (IControlPanelPlugin plugin in html.ContentEngine().Resolve<IPluginFinder>().GetPlugins<IControlPanelPlugin>())
{
var span = new System.Web.UI.HtmlControls.HtmlGenericControl("span");
span.Attributes["class"] = "control";
var pluginControl = plugin.AddTo(span, new PluginContext(new SelectionUtility(item, null), start, root, state, html.ContentEngine(), html.ViewContext.HttpContext));
if (pluginControl != null)
p.Controls.Add(span);
}
using (var sw = new StringWriter())
using (var htw = new HtmlTextWriter(sw))
{
p.RenderControl(htw);
return sw.ToString();
}
}
public static ItemDefinition Definition(this HtmlHelper html, ContentItem item)
{
return(html.ContentEngine().Definitions.GetDefinition(item));
}
/// <summary>
/// determines if user is actively managing (administering) the site vs. using the site
/// </summary>
/// <param name="html"></param>
/// <returns>true if managing</returns>
public static bool IsManaging(this HtmlHelper html)
{
return(IsManaging(html.ContentEngine()));
}
/// <summary>
/// determines if user is actively organizing parts / editing the page interactively via drag & drop
/// </summary>
/// <param name="html"></param>
/// <returns>true if managing</returns>
public static bool IsOrganizing(this HtmlHelper html)
{
var engine = html.ContentEngine();
return(engine != null && ControlPanel.GetState(engine).IsFlagSet(ControlPanelState.DragDrop));
}
/// <summary>Begins an editable wrapper that can be used to edit a single property in a view.</summary>
/// <param name="html"></param>
/// <param name="item"></param>
/// <param name="displayableName"></param>
/// <returns>A disposable object that must be called to close the editable wrapper element.</returns>
public static IDisposable BeginEditableWrapper(this HtmlHelper html, ContentItem item, string displayableName)
{
return(WebExtensions.GetEditableWrapper(item, true, displayableName, html.ContentEngine().Definitions.GetDefinition(item).Displayables[displayableName], html.ViewContext.Writer));
}
/// <summary>Gets the curent state of the control panel.</summary>
/// <param name="html"></param>
/// <returns></returns>
public static ControlPanelState GetControlPanelState(HtmlHelper html)
{
return(UI.WebControls.ControlPanel.GetState(html.ContentEngine().SecurityManager, html.ViewContext.HttpContext.User, html.ViewContext.HttpContext.Request.QueryString));
}
public ViewContentHelper(HtmlHelper html)
: base(html.ContentEngine(), () => html.CurrentPath())
{
this.html = html;
}
/// <summary>Gets the curent state of the control panel.</summary>
/// <param name="html"></param>
/// <returns></returns>
public static ControlPanelState GetControlPanelState(HtmlHelper html)
{
return UI.WebControls.ControlPanel.GetState(html.ContentEngine().SecurityManager, html.ViewContext.HttpContext.User, html.ViewContext.HttpContext.Request.QueryString);
}
public LegacyControlPanelHelper(HtmlHelper html)
: base(html.ContentEngine(), html.CurrentItem(), html.ViewContext.Writer, html.ViewContext.GetResourceStateCollection())
{
this.Html = html;
}
