Tree Browser Plugin

Renders a bulleted or numbered list as a collapsible/expandable tree of nodes.

On this page:

Acknowledgment
Syntax Rules
- Bullets
CSS classes
- Constant class
- Variable classes
Examples
- Basic
- Menu
Plugin Settings
Plugin Installation Instructions
Known issues
Planned Enhancements
Plugin Info

Acknowledgment

This plugin leverages the dTree External link mark JavaScript tree menu by Geir Landr� as well as code borrowed from TWiki:Plugins.RenderListPlugin.

Syntax Rules

Place the tag %TREEBROWSER{ parameters }% immediately before a bulleted or numbered list. The lists can be handcrafted, generated by another Plugin, a %TOC%, or the result of a FormattedSearch. The list will be rendered in a tree-like fashion (similar to the explorer folder list). Whenever a new indentation level is started, the subsequent nodes at this or a lower indentation level are shown as descendents of the preceding node. The following parameters can be used to configure the appearance of the tree:

Parameter	Description	Default
`"name"` or `theme="name"`	Select a rendering theme	none
`title`	Required. This text serves as the root of the tree	none
`openAll`	If `on`, the tree is shown fully expanded.	`off`
`openTo`	Must be an integer. If present, the tree is expanded to the given node, as numbered from the root.	`0`
`shared`	Must be a string. If present, the state of the tree is shared across all trees using this string. For example, if the tree is used in the WebLeftBar, the state will hold at all topics with this WebLeftBar. It's basically the name of the JavaScript object representing your tree.	none
`uselines`	Set to `false` if you don't want to show lines linking nodes and leafs in the tree	`true`
`useplusminus`	Set to `false` if you don't want to show '-' and '+' signs. One can use something like `onclick='javascript: tree.o($index);'` in the tree item to trigger opening/closing of a node.	`true`
`noindent`	Set to `true` to show children at the level of their parent. It suppresses children indentation. Enabling `noindent` will disable `uselines` and `useplusminus`.	`false`
`nocss`	Set to `true` to prevent inclusion of `dtree.css`.	`false`
`closesamelevel`	If `true` only one node within a parent can be expanded at the same time. openAll() and closeAll() functions do not work when this is enabled.	`false`
`noroot`	Prevents rendering of the title line. Useful if you don't want to show any title.	`false`
`warn`	Text to be displayed if no tree was found.	none
`style`	Name of the CSS file to include without the `.css` extension. The CSS file must be attached to this topic.	`dtree`
`autotoggle`	Set to `on` will enable node open/close when clicking the node item. Typically used for menu style tree along with `noindent`.	`off`
`nodeactions`	Defines node functionality in a comma separated list of HTML event and dTree function. Typically used for menu style tree along with `noindent`. Format: <event> <function>[,...] `event` is an HTML event e.g. `onclick`, `ondblclick`, `onmouseover`, `onmouseout`... `function` is one of the three dTree functions: `open`, `close`, `toggle`	none
`popup`	Set to `on` to enable pop-up menu mode. Typically used with `closesamelevel`. See pop-up menu example.	`off`
`closepopupdelay`	Pop-up mode only. Delay in millisecond before all popup close once the mouse cursor has left the menu structure.	`1000`
`popupoffset`	Provides x and y offset from parent node for pop-up menus. Allows for fine tunning of pop-up position.	`0,0`
`firstpopupoffset`	Provides x and y offset for first level pop-up menus. Introduce as a workaround for PatternSkin issues.	`0,0`
`useopacity`	Used to generate extra `dtreeTransluscentBackground` `div`. Enables popup with translucent background and opaque text.	`off`

Rendering themes can be defined by <name>_THEME Plugin settings

Each theme is defined by a comma separated list containing the render type and parameters required by that render type
There are different render types; currently this Plugin supports tree and icon render types
Format of the tree render type:
- Set < name >_THEME = tree
Format of the icon render type:
- Set < name >_THEME = icon, [< root icon image >], [< icon image >], [< folder icon image >], [< open folder icon image >]
- The root icon image is shown at the root of the tree, the icon image is shown at every leaf node, the folder icon image is shown at every collapsed internal node, and the open folder icon image is shown at every expanded internal node. The icon images point to files attached to TWiki topics and are referenced in the standard manner. If no path is given, the images are taken from TWikiDocGraphics.
- If an icon image is omitted, the following defaults are chosen: , , ,

If JavaScript is not enabled, the list is rendered as usual, and the =%TREEBROWSER% tag is omitted.

Bullets

Use regular * bullets
Start with level one
- Increase indentation only one level at a time
  - Like this
Decreasing indentation many levels at a time is fine
Keep labels short as text does not wrap.
You can specify an icon for a bullet of render type tree or icon:
- Attach the icon to a topic, e.g. myicon.gif, or
- Use one of the existing icons: %ATTACHURL%/globe.gif, %ATTACHURL%/home.gif, %ATTACHURL%/virtualhome.gif, %ATTACHURL%/group.gif, %ATTACHURL%/persons.gif, virtualpersons.gif, %ATTACHURL%/person.gif, %ATTACHURL%/virtualperson.gif, %ATTACHURL%/email.gif, %ATTACHURL%/trend.gif, %ATTACHURL%/folder.gif, %ATTACHURL%/file.gif, %ATTACHURL%/doc.gif, %ATTACHURL%/image.gif, %ATTACHURL%/pdf.gif, %ATTACHURL%/ppt.gif, %ATTACHURL%/sound.gif, %ATTACHURL%/xls.gif, %ATTACHURL%/zip.gif, %ATTACHURL%/see.gif
- Refer to an attached icon at the beginning of the bullet with:
  - icon:myicon.gif Followed by normal bullet text
- Refer to any icon at the beginning of the bullet using a full path or URL:
  - icon:http://dayawane.ihep.ac.cn/twiki/pub/TWiki/TWikiDocGraphics/xls.gif Followed by normal bullet text

CSS classes

A number of classes are used to facilitate look and feel customizations through CSS.

Constant class

This class won't change from one tree to the other:

treeBrowserPlugin: given to the div element encapsulating the whole tree and javascript.

Variable classes

Those classes are prefixed with the style parameter. For clarity of the documentation we used the default dtree prefix. Variable classes allow for multiple tree style support on one page.

dtree: given to the div element encapsulating the whole tree. Since v0.1.
dtreeRoot: given to the div element encapsulating the root or title of the tree. Introduced in v1.1.
dtreeLeaf: given to the div element encapsulating a tree item without children. Introduced in v0.9.
dtreeNodeOpened: given to the div element encapsulating a tree item that is showing children. Introduced in v0.9.
dtreeNodeClosed: given to the div element encapsulating a tree item that is hiding children. Introduced in v0.9.
dtreeChildren: given to the div element encapsulating the children of a tree item. Changed in v0.9. Formerly clip.
dtreeLevel0: given to the div element encapsulating the children of the tree root item. Introduced in v0.9.
dtreeLevel1: given to the div element encapsulating the children of level 0 items. Introduced in v0.9.
dtreeLevel2: given to the div element encapsulating the children of level 1 items. Introduced in v0.9.
dtreeLeveln: given to the div element encapsulating the children of level n-1 items. Introduced in v0.9.
dtreeTransluscentBackground: given to the div element used for popup translucent background. Introduced in v1.5.
dtreeFakeItem: given to the div element simulating nodes and leaf in dtreeTransluscentBackground. It guarantees same size for the translucent background and actual dtreeChildren div. Typically you should give dtreeFakeItem the same margin and padding properties as for dtreeLeaf, dtreeNodeOpened and dtreeNodeclosed. Introduced in v1.5.

Examples

Basic

%TREEBROWSER{"file" title="[[%HOMETOPIC%][%INCLUDINGWEB% Web Home]]" shared="left"}%
   * [[WebChanges][Changes]] 
   * [[WebIndex][Index]]
   * [[WebSearch][Search]]
   * this is a very very very long text
   * *Webs*
%WEBLIST{"      * [[$name.%HOMETOPIC%][$name]]"}%

generates

If installed	Simulated
open all \| close all

If installed

Simulated

Changes

Index

this is a very very very long text

Folder

Leaf1
Subfolder
- Leaf3
Leaf2

Webs

open all | close all

This tree could be used in the WebLeftBar, for example. Clicking on the plus icon next to Webs will expand the subtree below that node.

To add "collapse/expand all nodes" functionalities do something like:

<a href="javascript: tree.openAll();">open all</a> | <a href="javascript: tree.closeAll();">close all</a>
%TREEBROWSER{"file" title="[[%HOMETOPIC%][%INCLUDINGWEB% Web Home]]" shared="tree"}%
...

%TREEBROWSER{"thread" noroot="on" shared="memenudemo" noindent="on" style="dmenu" nodeactions="onmouseover open, onclick close"}%
   * Vegetables
      * Carot
      * Leek
      * Tomato
      * Potato 
   * Fruits
      * Banana
      * Grape fruit       
         * Pink
         * Yellow 
      * Peach

Pop-up example

Code

%TREEBROWSER{"thread" noroot="on" shared="memenudemo" noindent="on" style="dmenu" nodeactions="onmouseover open, onclick close", closesamelevel="on" popup="on" popupoffset="-10,-4" }%
   * Vegetables
      * Carot
      * Leek
      * Tomato
      * Potato 
   * Fruits
      * Banana
      * Grape fruit       
         * Pink
         * Yellow 
      * Peach

Simulated

Pop-up menu opacity example

Code

%TREEBROWSER{"thread" noroot="on" shared="opacitynotabledemo" noindent="on" style="smenu" nodeactions="onmouseover open, onclick close" popup="on" closesamelevel="on" closepopupdelay="100" firstpopupoffset="-60,0" popupoffset="-20,0" useopacity="on"}%
   * <a>Vegetables</a>
      * <a>Carot</a>
      * <a>Leek</a>
      * <a>Tomato</a>
      * <a>Potato</a>
   * <a>Fruits</a>
      * <a>Banana</a>
         * <a>Green</a>
         * <a>Yellow</a> 
      * <a>Grape fruit</a>       
         * <a>Pink</a>
         * <a>Yellow</a> 
      * <a>Peach</a>

Simulated

Plugin Settings

Plugin settings are stored as preferences variables. To reference a plugin setting write %<plugin>_<setting>%, i.e. %TREEBROWSERPLUGIN_SHORTDESCRIPTION%

One line description, is shown in the TextFormattingRules topic:
- Set SHORTDESCRIPTION = Renders a list as a collapsable/expandable tree.

Debug plugin: (See output in data/debug.txt)
- Set DEBUG = 0

Themes are named <SOMETHING>_THEME and contain a comma delimited list of render type with parameters:
- Set THREAD_THEME = tree
- Set HOME_THEME = icon,
- Set ORG_THEME = icon, , , ,
- Set GROUP_THEME = icon, tip.gif, , ,
- Set EMAIL_THEME = icon,
- Set TREND_THEME = icon,
- Set FILE_THEME = icon,
- Set DIR_THEME = icon,
- Set FORUM_THEME = icon, group.gif, index.gif, indexlist.gif, indexlist.gif

Plugin Installation Instructions

Download the zip file.

Unzip TreeBrowserPlugin.zip in your twiki installation directory. Content:

File:	Description:
`data/TWiki/TreeBrowserPlugin.txt`	Plugin topic
`lib/TWiki/Plugins/TreeBrowserPlugin.pm`	Plugin Perl module
`pub/TWiki/TreeBrowserPlugin/dtree.css`	part of dtree
`pub/TWiki/TreeBrowserPlugin/dmenu.css`	Menu CSS
`pub/TWiki/TreeBrowserPlugin/smenu.css`	Nicer menu CSS
`pub/TWiki/TreeBrowserPlugin/dtree.js`	part of dtree
`pub/TWiki/TreeBrowserPlugin/base.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/cd.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/empty.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/folder.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/folderopen.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/globe.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/imgfolder.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/join.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/joinbottom.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/line.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/minus.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/minusbottom.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/musicfolder.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/nolines_minus.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/nolines_plus.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/page.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/plus.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/plusbottom.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/question.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/trash.gif`	part of dtree
`pub/TWiki/TreeBrowserPlugin/doc.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/email.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/file.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/group.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/home.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/image.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/pdf.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/person.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/persons.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/ppt.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/see.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/sound.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/trend.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/virtualhome.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/virtualperson.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/virtualpersons.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/xls.gif`	icons from RenderListPlugin
`pub/TWiki/TreeBrowserPlugin/zip.gif`	icons from RenderListPlugin

Known issues

PatternSkin prevents javascript to determine menu position in topic content. Use firstpopupoffset="-163,0" as a workaround.
NatSkin CSS natMainContent overflow:hidden causes z-index bug in FireFox. Workaround by removing or overriding overflow:hidden for natMainContent.
dtreeTranslucentBackground only works for pop-up and not level 0. Sizing issue...
Pop-up sub-menu won't work on IE for dmenu style. Workaround by using smenu.

Planned Enhancements

See TWiki:Plugins.TreeBrowserPluginDev.

Plugin Info

Plugin Author:	TWiki:Main.ThomasWeigert & TWiki:Main.StephaneLenclud
Plugin Version:	v1.8
Change History:
29 Mar 2007:	(v1.8) - Improved `smenu` CSS and fixing warning. By St�phane Lenclud.
18 Mar 2007:	(v1.7) - Improved `smenu` CSS, resolved highlighting gap issue . Now closing sub-menu when highlighting leaf. By St�phane Lenclud.
18 Mar 2007:	(v1.6) - Sub-menus now working in IE with `smenu` style. Closing sub-menu when going back one level with mouse cursor. By St�phane Lenclud.
18 Mar 2007:	(v1.5) - Adding `useopacity` parameter. Adding `smenu.css`. By St�phane Lenclud.
16 Mar 2007:	(v1.4) - Adding `firstpopupoffset` allowing workaround for PatternSkin problem. By St�phane Lenclud.
14 Mar 2007:	(v1.3) - Adding `popup`, `closepopudelay` and `popupoffset` parameters. Implemented pop-up menu. Improved `dmenu.css`. By St�phane Lenclud.
11 Mar 2007:	(v1.2) - Adding `nodeactions` parameter. Improved `dmenu.css`. By St�phane Lenclud.
10 Mar 2007:	(v1.1) - Adding `autotoggle` parameter. It's useful for menu style. Improved `dmenu.css`. Added `dtreeRoot` CSS class. By St�phane Lenclud.
09 Mar 2007:	(v1.0) - Improved CSS with variable class name allowing for multiple tree with different style on the same topic. Now bullet `icon:` supports full URL or URI. By St�phane Lenclud.
09 Mar 2007:	(v0.9) - Adding `style` parameter. Improved CSS. Fixes extra '\n' in dot pm. By St�phane Lenclud.
07 Mar 2007:	(v0.8) - Adding `noroot` and `warn` parameters. Now using `preRenderingHandler` instead of the deprecated `startRenderingHandler` . `%TREEBROWSER%` are hidden if there is no tree to render. Fixes TOC icons problem with TWiki:Plugins.NatSkin. By St�phane Lenclud.
01 Oct 2006:	(v0.7) - Adding `useplusminus` , `noindent` and `nocss` parameters. By St�phane Lenclud.
17 Sep 2006:	(v0.6) - Adding `closesamelevel` and `uselines` functionalities, fix rendering issues with Firefox and pattern skin, fix warnings in apache error logs. By St�phane Lenclud
12 Apr 2006:	(v0.5) - Minor update for TWiki:Codev.TWikiRelease04x00
16 Sep 2005:	(v0.4) - Fix bug in `openAll` and `openTo` functions
06 Sep 2005:	(v0.3) - Adopt the rendering themes from TWiki:Plugins.RenderListPlugin
05 Sep 2005:	(v0.2) - Support sharing of tree state across topics. If JavaScript is not enabled, render the list in standard fashion. Correct user input error containig a line that is too deeply indented.
04 Sep 2005:	(v0.1) - Initial version
TWiki Dependency:	$TWiki::Plugins::VERSION 1.024
CPAN Dependencies:	none
Other Dependencies:	none
Perl Version:	5.005, 5.8.7
License:	GPL (GNU General Public License )
TWiki:Plugins/Benchmark:	GoodStyle n%, FormattedSearch n%, TreeBrowserPlugin n%
Plugin Home:	http://TWiki.org/cgi-bin/view/Plugins/TreeBrowserPlugin
Feedback:	http://TWiki.org/cgi-bin/view/Plugins/TreeBrowserPluginDev
Appraisal:	http://TWiki.org/cgi-bin/view/Plugins/TreeBrowserPluginAppraisal

Related Topics: TWiki:Plugins.RenderListPlugin, TWiki:Plugins.TreePlugin

Revision: r30 - 2007-03-30 - 04:35:38 - StephaneLenclud

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Tree Browser Plugin

Acknowledgment

Syntax Rules

Bullets

CSS classes

Constant class

Variable classes

Examples

Basic

Menu

`autotoggle` example

`nodeactions` example

Pop-up example

Pop-up menu opacity example

Plugin Settings

Plugin Installation Instructions

Known issues

Planned Enhancements

Plugin Info

	TWiki > TreeBrowserPlugin	Daya Bay webs: Public \| 中文 \| Internal \| *Help*
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Tree Browser Plugin

Acknowledgment

Syntax Rules

Bullets

CSS classes

Constant class

Variable classes

Examples

Basic

Menu

autotoggle example

nodeactions example

Pop-up example

Pop-up menu opacity example

Plugin Settings

Plugin Installation Instructions

Known issues

Planned Enhancements

Plugin Info

`autotoggle` example

`nodeactions` example