An related question:
Will this code
`org.apache.wicket.core.util.string.ComponentRenderer.renderComponent(Component)`
work as expected?


On Tue, 14 Jan 2020 at 14:15, Maxim Solodovnik <solomax...@gmail.com> wrote:

> Is this comment make sense:
> https://github.com/apache/wicket/commit/6d91a6a9e5c1d955a53571f9fb0f76262ac5c5d2#r36784645
> ?
>
> On Tue, 14 Jan 2020 at 14:13, Martin Grigorov <mgrigo...@apache.org>
> wrote:
>
>> On Tue, Jan 14, 2020 at 9:05 AM Maxim Solodovnik <solomax...@gmail.com>
>> wrote:
>>
>> > Wasn't aware of `hidden` attribute
>> > (and it seems to be widely supported
>> >
>> https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/hidden
>> > )
>> >
>>
>> Thanks for the reference, Maxim!
>>
>> It says "elements that are descendants of a hidden element are still
>> active, which means that script elements can still execute and form
>> elements can still submit" and this is different than display: none.
>> So we should stick with CSS display!
>>
>>
>> > Thanks :)
>> >
>> > On Tue, 14 Jan 2020 at 14:01, Martin Grigorov <mgrigo...@apache.org>
>> > wrote:
>> >
>> > > Hi,
>> > >
>> > > 1) I see that such CSS resource might be used for other needs, not
>> just
>> > > this particular case but would it be an option to use "hidden"
>> attribute
>> > in
>> > > this case instead of CSS "display" ?
>> > >
>> > > 2) wicket-core.css instead of wicket-base.css ?
>> > >
>> > > On Mon, Jan 13, 2020 at 9:43 PM <papega...@apache.org> wrote:
>> > >
>> > > > This is an automated email from the ASF dual-hosted git repository.
>> > > >
>> > > > papegaaij pushed a commit to branch csp
>> > > > in repository https://gitbox.apache.org/repos/asf/wicket.git
>> > > >
>> > > >
>> > > > The following commit(s) were added to refs/heads/csp by this push:
>> > > >      new 6d91a6a  WICKET-6725: replace display:none by
>> wicket--hidden
>> > css
>> > > > class
>> > > > 6d91a6a is described below
>> > > >
>> > > > commit 6d91a6a9e5c1d955a53571f9fb0f76262ac5c5d2
>> > > > Author: Emond Papegaaij <emond.papega...@topicus.nl>
>> > > > AuthorDate: Mon Jan 13 20:43:01 2020 +0100
>> > > >
>> > > >     WICKET-6725: replace display:none by wicket--hidden css class
>> > > > ---
>> > > >  .../src/main/java/org/apache/wicket/Component.java |  2 +-
>> > > >  .../src/main/java/org/apache/wicket/Page.java      | 11 +++++++
>> > > >  .../wicket/css/WicketBaseCSSResourceReference.java | 36
>> > > > ++++++++++++++++++++++
>> > > >  .../java/org/apache/wicket/css/wicket-base.css     |  3 ++
>> > > >  .../apache/wicket/settings/ResourceSettings.java   | 31
>> > > > +++++++++++++++++++
>> > > >  .../ajax/markup/html/AjaxIndicatorAppender.java    |  2 +-
>> > > >  6 files changed, 83 insertions(+), 2 deletions(-)
>> > > >
>> > > > diff --git
>> a/wicket-core/src/main/java/org/apache/wicket/Component.java
>> > > > b/wicket-core/src/main/java/org/apache/wicket/Component.java
>> > > > index 9da8ec5..d2da23b 100644
>> > > > --- a/wicket-core/src/main/java/org/apache/wicket/Component.java
>> > > > +++ b/wicket-core/src/main/java/org/apache/wicket/Component.java
>> > > > @@ -2367,7 +2367,7 @@ public abstract class Component
>> > > >                 response.write(name);
>> > > >                 response.write(" id=\"");
>> > > >                 response.write(getAjaxRegionMarkupId());
>> > > > -               response.write("\" style=\"display:none\"
>> > > > data-wicket-placeholder=\"\"></");
>> > > > +               response.write("\" class=\"wicket--hidden\"
>> > > > data-wicket-placeholder=\"\"></");
>> > > >                 response.write(name);
>> > > >                 response.write(">");
>> > > >         }
>> > > > diff --git a/wicket-core/src/main/java/org/apache/wicket/Page.java
>> > > > b/wicket-core/src/main/java/org/apache/wicket/Page.java
>> > > > index 3f0f5b5..3d70ad8 100644
>> > > > --- a/wicket-core/src/main/java/org/apache/wicket/Page.java
>> > > > +++ b/wicket-core/src/main/java/org/apache/wicket/Page.java
>> > > > @@ -24,10 +24,13 @@ import java.util.Set;
>> > > >
>> > > >  import org.apache.wicket.authorization.UnauthorizedActionException;
>> > > >  import org.apache.wicket.core.util.lang.WicketObjects;
>> > > > +import org.apache.wicket.css.WicketBaseCSSResourceReference;
>> > > >  import org.apache.wicket.feedback.FeedbackDelay;
>> > > >  import org.apache.wicket.markup.MarkupException;
>> > > >  import org.apache.wicket.markup.MarkupStream;
>> > > >  import org.apache.wicket.markup.MarkupType;
>> > > > +import org.apache.wicket.markup.head.CssHeaderItem;
>> > > > +import org.apache.wicket.markup.head.IHeaderResponse;
>> > > >  import org.apache.wicket.markup.html.WebPage;
>> > > >  import org.apache.wicket.markup.resolver.IComponentResolver;
>> > > >  import org.apache.wicket.model.IModel;
>> > > > @@ -1003,6 +1006,14 @@ public abstract class Page extends
>> > MarkupContainer
>> > > >                 }
>> > > >         }
>> > > >
>> > > > +       @Override
>> > > > +       public void renderHead(IHeaderResponse response)
>> > > > +       {
>> > > > +               super.renderHead(response);
>> > > > +               response.render(
>> > > > +
>> > > >
>> > >
>> >
>> CssHeaderItem.forReference(getApplication().getResourceSettings().getWicketBaseCSS()));
>> > > > +       }
>> > > > +
>> > > >         /**
>> > > >          * THIS METHOD IS NOT PART OF THE WICKET PUBLIC API. DO NOT
>> > CALL.
>> > > >          *
>> > > > diff --git
>> > > >
>> > >
>> >
>> a/wicket-core/src/main/java/org/apache/wicket/css/WicketBaseCSSResourceReference.java
>> > > >
>> > >
>> >
>> b/wicket-core/src/main/java/org/apache/wicket/css/WicketBaseCSSResourceReference.java
>> > > > new file mode 100644
>> > > > index 0000000..9247216
>> > > > --- /dev/null
>> > > > +++
>> > > >
>> > >
>> >
>> b/wicket-core/src/main/java/org/apache/wicket/css/WicketBaseCSSResourceReference.java
>> > > > @@ -0,0 +1,36 @@
>> > > > +/*
>> > > > + * Licensed to the Apache Software Foundation (ASF) under one or
>> more
>> > > > + * contributor license agreements.  See the NOTICE file distributed
>> > with
>> > > > + * this work for additional information regarding copyright
>> ownership.
>> > > > + * The ASF licenses this file to You under the Apache License,
>> Version
>> > > 2.0
>> > > > + * (the "License"); you may not use this file except in compliance
>> > with
>> > > > + * the License.  You may obtain a copy of the License at
>> > > > + *
>> > > > + *      http://www.apache.org/licenses/LICENSE-2.0
>> > > > + *
>> > > > + * Unless required by applicable law or agreed to in writing,
>> software
>> > > > + * distributed under the License is distributed on an "AS IS"
>> BASIS,
>> > > > + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
>> > > > implied.
>> > > > + * See the License for the specific language governing permissions
>> and
>> > > > + * limitations under the License.
>> > > > + */
>> > > > +package org.apache.wicket.css;
>> > > > +
>> > > > +import org.apache.wicket.request.resource.CssResourceReference;
>> > > > +
>> > > > +public final class WicketBaseCSSResourceReference extends
>> > > > CssResourceReference
>> > > > +{
>> > > > +       private static final long serialVersionUID =
>> > > 6795863553105608280L;
>> > > > +
>> > > > +       private static final WicketBaseCSSResourceReference
>> INSTANCE =
>> > > new
>> > > > WicketBaseCSSResourceReference();
>> > > > +
>> > > > +       public static WicketBaseCSSResourceReference get()
>> > > > +       {
>> > > > +               return INSTANCE;
>> > > > +       }
>> > > > +
>> > > > +       private WicketBaseCSSResourceReference()
>> > > > +       {
>> > > > +               super(WicketBaseCSSResourceReference.class,
>> > > > "wicket-base.css");
>> > > > +       }
>> > > > +}
>> > > > diff --git
>> > > > a/wicket-core/src/main/java/org/apache/wicket/css/wicket-base.css
>> > > > b/wicket-core/src/main/java/org/apache/wicket/css/wicket-base.css
>> > > > new file mode 100644
>> > > > index 0000000..9bbdd63
>> > > > --- /dev/null
>> > > > +++
>> b/wicket-core/src/main/java/org/apache/wicket/css/wicket-base.css
>> > > > @@ -0,0 +1,3 @@
>> > > > +.wicket--hidden {
>> > > > +       display: none!important;
>> > > > +}
>> > > > \ No newline at end of file
>> > > > diff --git
>> > > >
>> > >
>> >
>> a/wicket-core/src/main/java/org/apache/wicket/settings/ResourceSettings.java
>> > > >
>> > >
>> >
>> b/wicket-core/src/main/java/org/apache/wicket/settings/ResourceSettings.java
>> > > > index b76fbcd..68317f4 100644
>> > > > ---
>> > > >
>> > >
>> >
>> a/wicket-core/src/main/java/org/apache/wicket/settings/ResourceSettings.java
>> > > > +++
>> > > >
>> > >
>> >
>> b/wicket-core/src/main/java/org/apache/wicket/settings/ResourceSettings.java
>> > > > @@ -29,12 +29,14 @@ import
>> > > > org.apache.wicket.core.util.resource.locator.IResourceStreamLocator;
>> > > >  import
>> > > org.apache.wicket.core.util.resource.locator.ResourceStreamLocator;
>> > > >  import
>> > > >
>> > >
>> >
>> org.apache.wicket.core.util.resource.locator.caching.CachingResourceStreamLocator;
>> > > >  import org.apache.wicket.css.ICssCompressor;
>> > > > +import org.apache.wicket.css.WicketBaseCSSResourceReference;
>> > > >  import org.apache.wicket.javascript.IJavaScriptCompressor;
>> > > >  import org.apache.wicket.markup.head.PriorityFirstComparator;
>> > > >  import
>> > > > org.apache.wicket.markup.head.ResourceAggregator.RecordedHeaderItem;
>> > > >  import org.apache.wicket.markup.html.IPackageResourceGuard;
>> > > >  import org.apache.wicket.markup.html.SecurePackageResourceGuard;
>> > > >  import org.apache.wicket.request.http.WebResponse;
>> > > > +import org.apache.wicket.request.resource.CssResourceReference;
>> > > >  import
>> > > >
>> > >
>> >
>> org.apache.wicket.request.resource.caching.FilenameWithVersionResourceCachingStrategy;
>> > > >  import
>> > > > org.apache.wicket.request.resource.caching.IResourceCachingStrategy;
>> > > >  import
>> > > >
>> org.apache.wicket.request.resource.caching.NoOpResourceCachingStrategy;
>> > > > @@ -172,6 +174,8 @@ public class ResourceSettings implements
>> > > > IPropertiesFactoryContext
>> > > >                 false);
>> > > >
>> > > >         private boolean encodeJSessionId = false;
>> > > > +
>> > > > +       private CssResourceReference wicketBaseCSS =
>> > > > WicketBaseCSSResourceReference.get();
>> > > >
>> > > >         /**
>> > > >          * Configures Wicket's default ResourceLoaders.<br>
>> > > > @@ -770,4 +774,31 @@ public class ResourceSettings implements
>> > > > IPropertiesFactoryContext
>> > > >                 this.encodeJSessionId = encodeJSessionId;
>> > > >                 return this;
>> > > >         }
>> > > > +
>> > > > +       /**
>> > > > +        * Returns the resource reference of the base stylesheet for
>> > > > Wicket. This stylesheet contains
>> > > > +        * some lowlevel styling used by Wicket.
>> > > > +        *
>> > > > +        * @return The resource reference of the base stylesheet for
>> > > > Wicket.
>> > > > +        */
>> > > > +       public CssResourceReference getWicketBaseCSS()
>> > > > +       {
>> > > > +               return wicketBaseCSS;
>> > > > +       }
>> > > > +
>> > > > +       /**
>> > > > +        * Replaces the base stylesheet for Wicket. Changes made to
>> the
>> > > > styling can break functionality
>> > > > +        * like {@link
>> > Component#setOutputMarkupPlaceholderTag(boolean)},
>> > > > causing components that should
>> > > > +        * not be visible to be displayed. Make sure the replacement
>> > > > stylesheet has matching definitions
>> > > > +        * for the corresponding sections in the Wicket version.
>> > > > +        *
>> > > > +        * @param wicketBaseCSS
>> > > > +        *            The replacement styleheet.
>> > > > +        * @return {@code this} object for chaining
>> > > > +        */
>> > > > +       public ResourceSettings
>> setWicketBaseCSS(CssResourceReference
>> > > > wicketBaseCSS)
>> > > > +       {
>> > > > +               this.wicketBaseCSS = wicketBaseCSS;
>> > > > +               return this;
>> > > > +       }
>> > > >  }
>> > > > diff --git
>> > > >
>> > >
>> >
>> a/wicket-extensions/src/main/java/org/apache/wicket/extensions/ajax/markup/html/AjaxIndicatorAppender.java
>> > > >
>> > >
>> >
>> b/wicket-extensions/src/main/java/org/apache/wicket/extensions/ajax/markup/html/AjaxIndicatorAppender.java
>> > > > index d0fee97..ab1c0a1 100644
>> > > > ---
>> > > >
>> > >
>> >
>> a/wicket-extensions/src/main/java/org/apache/wicket/extensions/ajax/markup/html/AjaxIndicatorAppender.java
>> > > > +++
>> > > >
>> > >
>> >
>> b/wicket-extensions/src/main/java/org/apache/wicket/extensions/ajax/markup/html/AjaxIndicatorAppender.java
>> > > > @@ -95,7 +95,7 @@ public class AjaxIndicatorAppender extends
>> Behavior
>> > > >                 super.afterRender(component);
>> > > >                 final Response r = component.getResponse();
>> > > >
>> > > > -               r.write("<span style=\"display:none;\" class=\"");
>> > > > +               r.write("<span class=\"wicket--hidden\" class=\"");
>> > > >                 r.write(getSpanClass());
>> > > >                 r.write("\" ");
>> > > >                 r.write("id=\"");
>> > > >
>> > > >
>> > >
>> >
>> >
>> > --
>> > WBR
>> > Maxim aka solomax
>> >
>>
>
>
> --
> WBR
> Maxim aka solomax
>


-- 
WBR
Maxim aka solomax

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