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https://github.com/Jermolene/TiddlyWiki5
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4054566493
* feat: extend to support a selector attribute identifying the DOM element to be used as the drag handle * fix: remove redundant variable declaration * fix: remove extranneous variable declaration
37 lines
2.5 KiB
Plaintext
37 lines
2.5 KiB
Plaintext
caption: draggable
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created: 20170406081938627
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modified: 20220223145136863
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tags: Widgets TriggeringWidgets
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title: DraggableWidget
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type: text/vnd.tiddlywiki
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The DraggableWidget creates a DOM element that can be dragged by the user. It only works on browsers that support drag and drop, which typically means desktop browsers, but [[there are workarounds|Mobile Drag And Drop Shim Plugin]].
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The draggable element can be assigned a list of tiddlers that are used as the payload.
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If desired it can invoke actions when dragging starts and when it ends.
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See DragAndDropMechanism for an overview.
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! Content and Attributes
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|!Attribute |!Description |
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|tiddler |Optional title of the payload tiddler for the drag |
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|filter |Optional filter defining the payload tiddlers for the drag |
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|tag |Optional tag to override the default "div" element created by the widget|
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|selector|<<.from-version 5.2.2>> Optional CSS Selector to identify a DOM element within the widget that will be used as the drag handle |
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|class |Optional CSS classes to assign to the DOM element created by the widget. The class `tc-draggable` is added to the drag handle, which is the same as the DOM element created by the widget unless the <<.param selector>> attribute is used. The class `tc-dragging` is applied to the drag handle while the element is being dragged |
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|startactions |Optional action string that gets invoked when dragging ''starts'' |
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|endactions |Optional action string that gets invoked when dragging ''ends'' |
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|dragimagetype |<<.from-version "5.2.0">> Optional type of drag image: `dom` (the default) or `blank` to disable the drag image |
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Either or both of the ''tiddler'' and ''filter'' attributes must be specified in order for there to be a payload to drag.
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The [[actionTiddler Variable]] is accessible in both //startactions// and //endactions//. It holds the payload tiddler(s) specified through the //tiddler// and //filter// attributes as a [[Title List]] using double square brackets to quote titles that include whitespace.
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<<.tip """Note that the [[actionTiddler Variable]] holds a [[Title List]] quoted with double square brackets. This is unlike the DroppableWidget which uses the same variable to pass a single unquoted title.""">>
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<<.tip """When specifying a DOM node to use as the drag handle with the <<.param selector>> attribute, give it the class `tc-draggable` in order for it to have the appropriate cursor.""">>
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The LinkWidget incorporates the functionality of the DraggableWidget via the ''draggable'' attribute.
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