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https://github.com/Jermolene/TiddlyWiki5
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* Add data attribute support to button widget * Fix typo * Refactor ready for making mechanism more generic * Apply more generic implementation to multiplate widgets * Refactor to use existing widget.assignAttributes() method * Fix typo * Clarify docs * Update docs * Update select widget to support style.* attributes * Remove obsolete comment * Fixes refresh issues for checkbox and links widgets for data attributes (#7846) * fix: refresh issues with checkbox and links widgets * fix: indenting * Feat: add support for data attributes to Draggable and Droppable widgets (#7845) * Docs clarification * docs: add style and data attributes to Draggable and Droppable widget docs (#7850) * Refactors Select widget to directly create DOM node (#7848) * fix: refactored SelectWidget to directly create DOM nodes * fix: refactored SelectWidget to directly create DOM nodes * fix: improve refresh handling for select widget * Fixes issues in the PR "Button widget data attributes" (#7852) * fix: fixed ordered attributes handling and improved tests to catch event attributes * fix: clean up code from testing * fix: more tests and refactoring * fix: use lowercase when checking for event attribute prefix * fix: use lowercase when checking for event attribute prefix * fix: changed comment wording * fix: minor refactoring * refactor: for brevity --------- Co-authored-by: Saq Imtiaz <saq.imtiaz@gmail.com>
62 lines
4.3 KiB
Plaintext
62 lines
4.3 KiB
Plaintext
caption: droppable
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created: 20170406082820317
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modified: 20231121101447359
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tags: Widgets TriggeringWidgets
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title: DroppableWidget
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type: text/vnd.tiddlywiki
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\define droppable-image-actions()
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<$action-setfield $tiddler=<<actionTiddler>> $field="icon" $value=<<currentTiddler>>/>
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\end
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\define colour-demo-body()
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<$droppable actions=<<droppable-colour-actions>>>
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<span style="display: inline-block; width: 1em; height: 1em;background-color: $(currentTiddler)$;">
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</span>
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</$droppable>
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\end
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\define droppable-colour-actions()
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<$action-setfield $tiddler=<<actionTiddler>> $field="color" $value=<<currentTiddler>>/>
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\end
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The `droppable` widget creates a DOM element onto which dragged items can be dropped by the user, triggering the specified actions. 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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See DragAndDropMechanism for an overview.
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! Content and Attributes
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|!Attribute |!Description |
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|actions |Actions to be performed when items are dropped |
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|class |Optional CSS classes to assign to the draggable element. The class `tc-droppable` is added automatically, and the class `tc-dragover` is applied while an item is being dragged over the droppable element |
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|tag |Optional tag to override the default of a "div" element when the widget is rendered in block mode, or a "span" element when it is rendered in inline mode |
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|enable |<<.from-version "5.1.22">> Optional value "no" to disable the droppable functionality (defaults to "yes") |
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|data-* |<<.from-version "5.3.2">> Optional [[data attributes|https://developer.mozilla.org/en-US/docs/Learn/HTML/Howto/Use_data_attributes]] to be assigned to the HTML element |
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|style.* |<<.from-version "5.3.2">> Optional [[CSS properties|https://developer.mozilla.org/en-US/docs/Web/CSS/Reference]] to be assigned to the HTML element |
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Within the action string, there are two Variables generated by the DroppableWidget:
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* The [[actionTiddler Variable]] contains the title of the item being dropped
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* The [[modifier Variable]] contains the Modifier Key held while dragging (can be normal, ctrl, shift or ctrl-shift)
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If multiple items are dropped then the actions are performed repeatedly, once for each dropped item.
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<<.tip """Note that the [[actionTiddler Variable]] holds a single, unquoted title. This is unlike the DraggableWidget which uses the same variable to pass a quoted [[Title List]].""">>
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! Examples
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This example displays a palette of icons. Dragging a tiddler onto one of the icons assigns that icon to the tiddler.
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<$list filter="[all[tiddlers+shadows]tag[$:/tags/Image]sort[title]]">
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<$droppable actions=<<droppable-image-actions>>>
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<$transclude/>
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</$droppable>
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</$list>
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Similarly, this example shows a palette of colours. Dragging a tiddler onto one of the colours assigns that colour to be used for rendering the icon of the tiddler.
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<$list filter="LightPink Pink Crimson LavenderBlush PaleVioletRed HotPink DeepPink MediumVioletRed Orchid Thistle Plum Violet Magenta Fuchsia DarkMagenta Purple MediumOrchid DarkViolet DarkOrchid Indigo BlueViolet MediumPurple MediumSlateBlue SlateBlue DarkSlateBlue Lavender GhostWhite Blue MediumBlue MidnightBlue DarkBlue Navy RoyalBlue CornflowerBlue LightSteelBlue LightSlateGrey SlateGrey DodgerBlue AliceBlue SteelBlue LightSkyBlue SkyBlue DeepSkyBlue LightBlue PowderBlue CadetBlue Azure LightCyan PaleTurquoise Cyan Aqua DarkTurquoise DarkSlateGrey DarkCyan Teal MediumTurquoise LightSeaGreen Turquoise Aquamarine MediumAquamarine MediumSpringGreen MintCream SpringGreen MediumSeaGreen SeaGreen Honeydew LightGreen PaleGreen DarkSeaGreen LimeGreen Lime ForestGreen Green DarkGreen Chartreuse LawnGreen GreenYellow DarkOliveGreen YellowGreen OliveDrab Beige LightGoldenrodYellow Ivory LightYellow Yellow Olive DarkKhaki LemonChiffon PaleGoldenrod Khaki Gold Cornsilk Goldenrod DarkGoldenrod FloralWhite OldLace Wheat Moccasin Orange PapayaWhip BlanchedAlmond NavajoWhite AntiqueWhite Tan BurlyWood Bisque DarkOrange Linen Peru PeachPuff SandyBrown Chocolate SaddleBrown Seashell Sienna LightSalmon Coral OrangeRed DarkSalmon Tomato MistyRose Salmon Snow LightCoral RosyBrown IndianRed Red Brown FireBrick DarkRed Maroon White WhiteSmoke Gainsboro LightGrey Silver DarkGrey Grey DimGrey Black">
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<<colour-demo-body>>
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</$list>
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