mirror of
https://github.com/Jermolene/TiddlyWiki5
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74 lines
2.6 KiB
Plaintext
74 lines
2.6 KiB
Plaintext
caption: scrollable
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created: 20140324223413403
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modified: 20230731100903977
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tags: Widgets
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title: ScrollableWidget
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type: text/vnd.tiddlywiki
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! Introduction
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The scrollable widget wraps its content in a scrollable frame. The user can scroll the contents with the mouse or with touch gestures. Code can use the [[WidgetMessage: tm-scroll]] to programmatically scroll specific DOM nodes into view.
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! Content and Attributes
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The content of the `<$scrollable>` widget is displayed within a pair of wrapper DIVs. If the inner DIV is larger then it scrolls within the outer one. CSS is used to specify the size of the outer wrapper.
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|!Attribute |!Description |
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|class |The CSS class(es) to be applied to the outer DIV |
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|fallthrough |See below |
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|bind |<<.from-version "5.3.2">> Optional title of tiddler to which the scroll position should be bound |
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Binding the scroll position to a tiddler automatically copies the scroll coordinates into the `scroll-left` and `scroll-top` fields as scrolling occurs. Conversely, setting those field values will automatically cause the scrollable to scroll if it can.
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<$macrocall $name=".note" _="""If a scrollable widget can't handle the `tm-scroll` message because the inner DIV fits within the outer DIV, then by default the message falls through to the parent widget. Setting the ''fallthrough'' attribute to `no` prevents this behaviour."""/>
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! Examples
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These examples require the following CSS definitions from [[$:/_tw5.com-styles]]:
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```
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.tc-scrollable-demo {
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border: 1px solid <<colour message-border>>;
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background-color: <<colour message-background>>;
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padding: 1em;
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height: 400px;
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position: relative;
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}
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```
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!! Simple Usage
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This wiki text shows how to display a list within the scrollable widget:
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<<wikitext-example-without-html "<$scrollable class='tc-scrollable-demo'>
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<$list filter='[tag[Reference]]'>
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<$view field='title'/>: <$list filter='[all[current]links[]sort[title]]' storyview='pop'>
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<$link><$view field='title'/></$link>
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</$list>
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</$list>
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</$scrollable>
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">>
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!! Binding scroll position to a tiddler
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[[Current scroll position|$:/my-scroll-position]]: {{$:/my-scroll-position!!scroll-left}}, {{$:/my-scroll-position!!scroll-top}}
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<$button>
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<$action-setfield $tiddler="$:/my-scroll-position" scroll-left="100" scroll-top="100"/>
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Set current scroll position to 100,100
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</$button>
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<<wikitext-example-without-html "<$scrollable class='tc-scrollable-demo' bind='$:/my-scroll-position'>
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<$list filter='[tag[Reference]]'>
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<$view field='title'/>: <$list filter='[all[current]links[]sort[title]]' storyview='pop'>
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<$link><$view field='title'/></$link>
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</$list>
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</$list>
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</$scrollable>
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">>
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