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https://github.com/Jermolene/TiddlyWiki5
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36 lines
1.6 KiB
Plaintext
36 lines
1.6 KiB
Plaintext
created: 20140213171818824
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modified: 20150207131000000
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tags: Mechanisms
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title: HistoryMechanism
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type: text/vnd.tiddlywiki
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The system tiddler [[$:/HistoryList]] keeps track of a list of tiddlers comprising the navigation history. Each time you click on a link to a tiddler, the title of the target tiddler is added to the top of the stack.
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The history list is stored in JSON to allow additional details about the coordinates of the DOM node that initiated the navigation.
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The history list also maintains the field ''current-tiddler'' that contains the name of the tiddler at the top of the stack. This field can be used like so:
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```
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<$list filter="[list[$:/StoryList]]" history="$:/HistoryList" storyview="pop">
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<$button message="tm-close-tiddler" class="tc-btn-invisible tc-btn-mini">×</$button> <$link><$view field="title"/> <$reveal type="match" state="$:/HistoryList!!current-tiddler" text=<<currentTiddler>>>✓</$reveal></$link>
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</$list>
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```
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Which renders the same as the "Open" sidebar tab, with the addition of a tick against the tiddler that was last navigated to.
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<$list filter="[list[$:/StoryList]]" history="$:/HistoryList" storyview="pop">
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<$button message="tm-close-tiddler" class="tc-btn-invisible tc-btn-mini">×</$button> <$link><$view field="title"/> <$reveal type="match" state="$:/HistoryList!!current-tiddler" text=<<currentTiddler>>>✓</$reveal></$link>
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</$list>
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!! Empty Story
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To display content when the story is empty, create $:/config/EmptyStoryMessage and enter the desired contents. The following would show the GettingStarted tiddler when all others are closed.
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```
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{{GettingStarted||$:/core/ui/ViewTemplate}}
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```
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