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https://github.com/Jermolene/TiddlyWiki5
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43 lines
2.8 KiB
Plaintext
43 lines
2.8 KiB
Plaintext
caption: dropzone
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created: 20131024141900000
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modified: 20210506115809131
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tags: Widgets
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title: DropzoneWidget
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type: text/vnd.tiddlywiki
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! Introduction
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The dropzone widget creates an area into which the user can drag files and other objects. It also supports pasting via the clipboard, although browser support is currently limited.
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It sends a [[WidgetMessage: tm-import-tiddlers]] carrying a JSON representation of the tiddlers to be imported up through its parents. This message usually trapped by the NavigatorWidget which adds the tiddlers to the store and updates the story to display them.
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! Content and Attributes
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|!Attribute |!Description |
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|deserializer |<<.from-version "5.1.15">> Optional name of deserializer to be used (by default the deserializer is derived from the file extension) |
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|enable |<<.from-version "5.1.22">> Optional value "no" to disable the dropzone functionality (defaults to "yes") |
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|class |<<.from-version "5.1.22">> Optional CSS class to be assigned to the DOM node created by the dropzone (defaults to "tc-dropzone") |
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|autoOpenOnImport |<<.from-version "5.1.23">> Optional value "no" or "yes" that can override tv-auto-open-on-import |
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|importTitle|<<.from-version "5.1.23">> Optional tiddler title to use for import process instead of ~$:/Import |
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|actions|<<.from-version "5.2.0">> Optional actions string to be invoked after the `tm-import-tiddlers` message has been sent. The variable `importTitle` provides the title of the tiddler used for the import process. |
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|contentTypesFilter |<<.from-version "5.2.0">> Optional filter that specifies the [[content types|ContentType]] accepted by the dropzone. |
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|filesOnly|<<.from-version "5.2.0">> Optional. When set to "yes", the dropzone only accepts files and not string data. Defaults to "no" |
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<<.tip """Use the `prefix` filter operator to easily accept multiple related content types. For example this filter will accept all image content types: `[prefix[image/]]`""">>
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<<.tip "The list of available deserializers can be seen by using the filter `[deserializers[]]` in the Filter tab in [[Advanced Search|$:/AdvancedSearch]].">>
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The dropzone widget displays any contained content within the dropzone.
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! Display
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The dropzone widget creates an HTML `<div class="tc-dropzone">` to contain its content. During a drag operation the class `tc-dragover` is added. CSS is used to provide user feedback. For custom styling of this state where a drag is in progress, specify a custom class name with the `class` attribute and use CSS with the selector `.myclass.tc-dragover`.
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! Data types supported
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The following data transfer types are supported:
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* ''text/vnd.tiddler'' - a list of tiddlers in JSON format (this format is generated by the LinkWidget)
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* ''text/plain'' - plain text
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* ''text/uri-list'' - a list of URIs as a single tiddler
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