mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-01 07:36:18 +00:00
99 lines
4.2 KiB
Plaintext
99 lines
4.2 KiB
Plaintext
caption: link
|
|
created: 20131024141900000
|
|
modified: 20190610195105615
|
|
tags: Widgets
|
|
title: LinkWidget
|
|
type: text/vnd.tiddlywiki
|
|
|
|
The `link` widget generates links to tiddlers. (Use the HTML `<a>` element to generate external links).
|
|
|
|
! Content and Attributes
|
|
|
|
The content of the link widget is rendered within the `<a>` tag representing the link. If the content is empty then the title of the target tiddler is rendered as the default, for example:
|
|
|
|
* `<$link/>` is equivalent to `<$link to=<<currentTiddler>>><$view field="title"/></$link>`
|
|
* `<$link to="HelloThere"/>` is equivalent to `<$link to="HelloThere">HelloThere</$link>`
|
|
|
|
|!Attribute |!Description |
|
|
|to |The title of the target tiddler for the link (defaults to the [[current tiddler|Current Tiddler]]) |
|
|
|aria-label |Optional accessibility label |
|
|
|tooltip |Optional tooltip WikiText |
|
|
|tabindex |Optional numeric [[tabindex|https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/tabIndex]] |
|
|
|draggable |"yes" to enable the link to be draggable (defaults to "yes") |
|
|
|tag |Optional tag to override the default "a" element |
|
|
|class|Optional CSS classes //in addition to// the default classes (see below)|
|
|
|overrideClass|<<.from-version "5.1.16">> Optional CSS classes //instead of// the default classes |
|
|
|
|
The draggable functionality is equivalent to using the DraggableWidget with the ''tiddler'' attribute set to the link target.
|
|
|
|
The default value of the tooltip attribute is supplied by the <<.vlink tv-wikilink-tooltip>> variable.
|
|
|
|
This means that you can control the text of a link tooltip in several ways:
|
|
|
|
```
|
|
<$link to="HelloThere" tooltip="Custom tooltip">Link 1</$link>
|
|
|
|
<$link to="HelloThere" tooltip="Another tooltip">{{$:/core/icon}}</$link>
|
|
|
|
<$set name="tv-wikilink-tooltip" value="I'm a link to {{!!title}}">
|
|
<$link to="HelloThere">Link 2</$link>
|
|
</$set>
|
|
|
|
```
|
|
|
|
Renders as:
|
|
|
|
<$link to="HelloThere" tooltip="Custom tooltip">Link 1</$link>
|
|
|
|
<$link to="HelloThere" tooltip="Another tooltip">{{$:/core/icon}}</$link>
|
|
|
|
<$set name="tv-wikilink-tooltip" value="I'm a link to {{!!title}}">
|
|
<$link to="HelloThere">Link 2</$link>
|
|
</$set>
|
|
|
|
Note that the tooltip is rendered with the current tiddler set to the target of the link.
|
|
|
|
A useful convention is to set the tooltip like this:
|
|
|
|
```
|
|
\define tv-wikilink-tooltip()
|
|
<$transclude field="tooltip"><$transclude field="title"/></$transclude>
|
|
\end
|
|
```
|
|
|
|
This causes the tooltip to be the ''tooltip'' field of the target tiddler. If the field isn't present, then the title is used instead.
|
|
|
|
! CSS Classes
|
|
|
|
The link widget automatically determines and applies the following classes to links:
|
|
|
|
* `tc-tiddlylink` - applied to all links
|
|
* `tc-tiddlylink-external` - applied to external, non-tiddler links
|
|
* `tc-tiddlylink-internal` - applied to tiddler links
|
|
* `tc-tiddlylink-missing` - applied to tiddler links where the target tiddler doesn't exist
|
|
* `tc-tiddlylink-resolves` - applied to tiddler links when the target tiddler does exist
|
|
|
|
Use the `class` attribute to specify additional css classes, or `overrideClass` to apply only that but not the above defaults, e.g. when used in a LinkCatcherWidget:
|
|
|
|
<<wikitext-example-without-html """*<$link class="example">Here</$link> the `example` class is added.
|
|
*<$link overrideClass="example">Here</$link> only the `example` class applies.
|
|
*<$link overrideClass="">Here</$link> no class is set.""">>
|
|
|
|
! `href` generation
|
|
|
|
The following process is used to generate the `href` attribute of the generated HTML `<a>` element:
|
|
|
|
# If <<.vlink tv-get-export-link>> is defined it is invoked to convert the target tiddler title to the `href` value
|
|
#* In practice, only a [[JavaScript macro|Macros]] can be used
|
|
# <<.from-version "5.1.15">> If <<.vlink tv-filter-export-link>> is defined it is interpreted as a filter that converts the target tiddler title to the `href` value
|
|
# If <<.vlink tv-wikilink-template>> is defined it is treated as a specialised macro body that can perform limited conversion of the target tiddler title to the `href` value
|
|
# Otherwise, the target tiddler title is URI encoded to create the `href`
|
|
|
|
! Configuration variables
|
|
|
|
* <<.vlink tv-wikilinks>>
|
|
* <<.vlink tv-filter-export-link>>
|
|
* <<.vlink tv-wikilink-template>>
|
|
* <<.vlink tv-wikilink-tooltip>>
|
|
* <<.vlink tv-get-export-link>>
|