title: $:/core/macros/list
tags: $:/tags/Macro

\define list-links(filter,type:"ul",subtype:"li",class:"",emptyMessage)
\whitespace trim
<$type$ class="$class$">
<$list filter="$filter$" emptyMessage=<<__emptyMessage__>>>
<$subtype$>
<$link to={{!!title}}>
<$let tv-wikilinks="no">
<$transclude field="caption">
<$view field="title"/>
</$transclude>
</$let>
</$link>
</$subtype$>
</$list>
</$type$>
\end

\define list-links-draggable-drop-actions()
<$action-listops $tiddler=<<targetTiddler>> $field=<<targetField>> $subfilter="+[insertbefore<actionTiddler>,<currentTiddler>]"/>
\end

\define list-links-draggable(tiddler,field:"list",emptyMessage,type:"ul",subtype:"li",class:"",itemTemplate)
\whitespace trim
<span class="tc-links-draggable-list">
<$vars targetTiddler="""$tiddler$""" targetField="""$field$""">
<$type$ class="$class$">
<$list filter="[list[$tiddler$!!$field$]]" emptyMessage=<<__emptyMessage__>>>
<$droppable actions=<<list-links-draggable-drop-actions>> tag="""$subtype$""" enable=<<tv-enable-drag-and-drop>>>
<div class="tc-droppable-placeholder"/>
<div>
<$transclude tiddler="""$itemTemplate$""">
<$link to={{!!title}}>
<$let tv-wikilinks="no">
<$transclude field="caption">
<$view field="title"/>
</$transclude>
</$let>
</$link>
</$transclude>
</div>
</$droppable>
</$list>
<$tiddler tiddler="">
<$droppable actions=<<list-links-draggable-drop-actions>> tag="div" enable=<<tv-enable-drag-and-drop>>>
<div class="tc-droppable-placeholder">
{{$:/core/images/blank}}
</div>
<div style="height:0.5em;"/>
</$droppable>
</$tiddler>
</$type$>
</$vars>
</span>
\end

\define list-tagged-draggable-drop-actions(tag)
\whitespace trim
<!-- Save the current ordering of the tiddlers with this tag -->
<$set name="order" filter="[<__tag__>tagging[]]">
<!-- Remove any list-after or list-before fields from the tiddlers with this tag -->
<$list filter="[<__tag__>tagging[]]">
<$action-deletefield $field="list-before"/>
<$action-deletefield $field="list-after"/>
</$list>
<!-- Save the new order to the Tag Tiddler -->
<$action-listops $tiddler=<<__tag__>> $field="list" $filter="+[enlist<order>] +[insertbefore<actionTiddler>,<currentTiddler>]"/>
<!-- Make sure the newly added item has the right tag -->
<!-- Removing this line makes dragging tags within the dropdown work as intended -->
<!--<$action-listops $tiddler=<<actionTiddler>> $tags=<<__tag__>>/>-->
<!-- Using the following 5 lines as replacement makes dragging titles from outside into the dropdown apply the tag -->
<$list filter="[<actionTiddler>!contains:tags<__tag__>]">
<$fieldmangler tiddler=<<actionTiddler>>>
<$action-sendmessage $message="tm-add-tag" $param=<<__tag__>>/>
</$fieldmangler>
</$list>
</$set>
\end

\define list-tagged-draggable(tag,subFilter,emptyMessage,itemTemplate,elementTag:"div",storyview:"")
\whitespace trim
<span class="tc-tagged-draggable-list">
<$set name="tag" value=<<__tag__>>>
<$list filter="[<__tag__>tagging[]$subFilter$]" emptyMessage=<<__emptyMessage__>> storyview=<<__storyview__>>>
<$elementTag$ class="tc-menu-list-item">
<$droppable actions="""<$macrocall $name="list-tagged-draggable-drop-actions" tag=<<__tag__>>/>""" enable=<<tv-enable-drag-and-drop>>>
<$elementTag$ class="tc-droppable-placeholder"/>
<$elementTag$>
<$transclude tiddler="""$itemTemplate$""">
<$link to={{!!title}}>
<$view field="title"/>
</$link>
</$transclude>
</$elementTag$>
</$droppable>
</$elementTag$>
</$list>
<$tiddler tiddler="">
<$droppable actions="""<$macrocall $name="list-tagged-draggable-drop-actions" tag=<<__tag__>>/>""" enable=<<tv-enable-drag-and-drop>>>
<$elementTag$ class="tc-droppable-placeholder"/>
<$elementTag$ style="height:0.5em;">
</$elementTag$>
</$droppable>
</$tiddler>
</$set>
</span>
\end
