>
> Hi again BTC
>
> If I use Zoomin storyview is this the correct code for defining shortcuts
> to navigate forward and backward through Tiddlers in story river
>
>
> - Goto next tiddler in story view with ctrl-N
>
> <$navigator story="$:/StoryList" history="$:/HistoryList">
> <$list filter="[all[current]next[$:/StoryList]]">
> <$action-navigate $to=<<currentTiddler>> />
> </$list>
> </$navigator>
> tagged with: $:/tags/KeyboardShortcut
>
> - Goto previous tiddler in story view with ctrl-P
>
> <$navigator story="$:/StoryList" history="$:/HistoryList">
> <$list filter="[all[current]previous[$:/StoryList]]">
> <$action-navigate $to=<<currentTiddler>> />
> </$list>
> </$navigator>
> tagged with: $:/tags/KeyboardShortcut
>
> I have required tiddlers for description
>
>
> - $:/config/ShortcutInfo/next-tiddler text: Next tiddler in
> story river
> - $:/config/ShortcutInfo/previous-tiddler text: Previous tiddler in
> story river
>
>
Hi Mohammad, there's a problem you need to work around: the currentTiddler
is not the same outside of the story river as within the story river (the
keyboard shortcuts are outside the story river)
That's why [is[current]] in a keyboard shortcut will not match a tiddler in
the story river.
The currentTiddler in the story river is defined through the list widget in
the $:/core/ui/PageTemplate/story Tiddler. You need a way to know outside
of the story river which one is the currently viewed tiddler to make your
idea work.
The list widget in the story pagetemplate lists all tiddlers that are
listed in the $:/StoryList tiddler's list field:
<$list filter="[list[$:/StoryList]]" .../>
If you start a presentation, you could set the text of a state tiddler ,
say $:/state/presentation-tiddler, to the title of the first tiddler in the
presentation
When you go to the next Tiddler with your next button, you would set that
state tiddler to the next title (previous title for the previous button).
You would do the same in the keyboard shortcuts.
Like that you should always have a reference which tiddler is shown.
If you know the currently viewed tiddler you get the next from the
$:/StoryList with this filter:
<$list filter="[{$:/state/presentation-tiddler}next[$:/StoryList]]"
variable="nextTiddler">
the previous:
<$list filter="[{$:/state/presentation-tiddler}previous[$:/StoryList]]"
variable="previousTiddler">
I would add a check if we're at the beginning or the end of the story list:
<$list filter="[list[$:/StoryList]count[]]" variable="storyCount">
<$list filter="[list[$:/StoryList]nth<storyCount>
!title{$:/state/presentation-tiddler}]">
<$list filter="[{$:/state/presentation-tiddler}next[$:/StoryList]]"
variable="nextTiddler">
<$action-navigate $to=<<nextTiddler>>/>
</$list>
</$list>
</$list>
Don't hesitate to ask if the how or why is unclear
BTC
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