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Extend the navigator widget to maintain the "current-tiddler" field on the history list

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Jermolene 2014-02-13 17:59:51 +00:00
parent 9db887748b
commit 9bb600299f
2 changed files with 25 additions and 1 deletions
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3
core/modules/widgets/navigator.js
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@ -140,7 +140,8 @@ NavigatorWidget.prototype.addToHistory = function(title,fromPageRect) {
$tw.utils.each(titles,function(title) {
historyList.push({title: title, fromPageRect: fromPageRect});
});
this.wiki.setTiddlerData(this.historyTitle,historyList);
this.wiki.setTiddlerData(this.historyTitle,historyList,{"current-tiddler": titles[titles.length-1]});
this.wiki.addTiddler(new $tw.Tiddler());
}
};

23
editions/tw5.com/tiddlers/mechanisms/HistoryMechanism.tid Normal file
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@ -0,0 +1,23 @@
created: 20140213171818824
modified: 20140213172236345
tags: mechanism
title: HistoryMechanism
type: text/vnd.tiddlywiki
The system tiddler [[$:/HistoryList]] keeps track of a list of tiddlers comprising the navigation history. Each time you click on a link to a tiddler, the title of the target tiddler is added to the top of the stack.
The history list is stored in JSON to allow additional details about the coordinates of the DOM node that initiated the navigation.
The history list also maintains the field ''current-tiddler'' that contains the name of the tiddler at the top of the stack. This field can be used like so:
```
<$list filter="[list[$:/StoryList]]" history="$:/HistoryList" storyview="pop">
<$button message="tw-close-tiddler" class="btn-invisible btn-mini">&times;</$button> <$link to={{!!title}}><$view field="title"/> <$reveal type="match" state="$:/HistoryList!!current-tiddler" text=<<currentTiddler>>>&#x2713;</$reveal></$link>
</$list>
```
Which renders the same as the "Open" sidebar tab, with the addition of a tick against the tiddler that was last navigated to.
<$list filter="[list[$:/StoryList]]" history="$:/HistoryList" storyview="pop">
<$button message="tw-close-tiddler" class="btn-invisible btn-mini">&times;</$button> <$link to={{!!title}}><$view field="title"/> <$reveal type="match" state="$:/HistoryList!!current-tiddler" text=<<currentTiddler>>>&#x2713;</$reveal></$link>
</$list>