/***
|Name|NestedSlidersPlugin|
|Source|http://www.TiddlyTools.com/#NestedSlidersPlugin|
|Version|2.0.4|
|Author|Eric Shulman - ELS Design Studios|
|License|http://www.TiddlyTools.com/#LegalStatements <<br>>and [[Creative Commons Attribution-ShareAlike 2.5 License|http://creativecommons.org/licenses/by-sa/2.5/]]|
|~CoreVersion|2.1|
|Type|plugin|
|Requires||
|Overrides|Slider.prototype.stop|
|Description|Make any tiddler content into an expandable 'slider' panel, without needing to create a separate tiddler to contain the slider content.|

++++!!!!![Configuration]>
Enable animation for slider panels
<<option chkFloatingSlidersAnimate>> allow sliders to animate when opening/closing
>(note: This setting is in //addition// to the general option for enabling/disabling animation effects:
><<option chkAnimate>> enable animations (entire document)
>For slider animation to occur, you must also allow animation in general.

Debugging messages for 'lazy sliders' deferred rendering:
<<option chkDebugLazySliderDefer>> show debugging alert when deferring slider rendering
<<option chkDebugLazySliderRender>> show debugging alert when deferred slider is actually rendered
===
++++!!!!![Usage]>
When installed, this plugin adds new wiki syntax for embedding 'slider' panels directly into tiddler content.  Use {{{+++}}} and {{{===}}} to delimit the slider content.  You can also 'nest' these sliders as deep as you like (see complex nesting example below), so that expandable 'tree-like' hierarchical displays can be created.  This is most useful when converting existing in-line text content to create in-line annotations, footnotes, context-sensitive help, or other subordinate information displays.

Additional optional syntax elements let you specify
*default to open
*cookiename
*heading level
*floater (with optional CSS width value)
*mouse auto rollover
*custom class/label/tooltip/accesskey
*automatic blockquote
*deferred rendering
The complete syntax, using all options, is:
//{{{
++++(cookiename)!!!!!^width^*{{class{[label=key|tooltip]}}}>...
content goes here
===
//}}}
where:
* {{{+++}}} (or {{{++++}}}) and {{{===}}}^^
marks the start and end of the slider definition, respectively.  When the extra {{{+}}} is used, the slider will be open when initially displayed.^^
* {{{(cookiename)}}}^^
saves the slider opened/closed state, and restores this state whenever the slider is re-rendered.^^
* {{{!}}} through {{{!!!!!}}}^^
displays the slider label using a formatted headline (Hn) style instead of a button/link style^^
* {{{^width^}}} (or just {{{^}}})^^
makes the slider 'float' on top of other content rather than shifting that content downward.  'width' must be a valid CSS value (e.g., "30em", "180px", "50%", etc.).  If omitted, the default width is "auto" (i.e., fit to content)^^
* {{{*}}}^^
automatically opens/closes slider on "rollover" as well as when clicked^^
* {{{{{class{[label=key|tooltip]}}}}}}^^
uses custom label/tooltip/accesskey.  {{{{{class{...}}}}}}, {{{=key}}} and {{{|tooltip}}} are optional.  'class' is any valid CSS class name, used to style the slider label text.  'key' must be a ''single letter only''.  Default labels/tootips are: ">" (more) and "<" (less), with no default access key assignment.^^
* {{{">"}}} //(without the quotes)//^^
automatically adds blockquote formatting to slider content^^
* {{{"..."}}} //(without the quotes)//^^
defers rendering of closed sliders until the first time they are opened.  //Note: deferred rendering may produce unexpected results in some cases.  Use with care.//^^

//Note: to make slider definitions easier to read and recognize when editing a tiddler, newlines immediately following the {{{+++}}} 'start slider' or preceding the {{{===}}} 'end slider' sequence are automatically supressed so that excess whitespace is eliminated from the output.//
===
++++!!!!![Examples]>
simple in-line slider: 
{{{
+++
   content
===
}}}
+++
   content
===
----
use a custom label and tooltip: 
{{{
+++[label|tooltip]
   content
===
}}}
+++[label|tooltip]
   content
===
----
content automatically blockquoted: 
{{{
+++>
   content
===
}}}
+++>
   content
===
----
all options combined //(default open, cookie, heading, sized floater, rollover, class, label/tooltip/key, blockquoted, deferred)//
{{{
++++(testcookie)!!!^30em^*{{big{[label=Z|click or press Alt-Z to open]}}}>...
   content
===
}}}
++++(testcookie)!!!^30em^*{{big{[label=Z|click or press Alt-Z to open]}}}>...
   content
===
----
complex nesting example:
{{{
+++^[get info...=I|click for information or press Alt-I]
   put some general information here, plus a floating slider with more specific info:
   +++^10em^[view details...|click for details]
      put some detail here, which could include a rollover with a +++^25em^*[glossary definition]explaining technical terms===
   ===
===
}}}
+++^[get info...=I|click for information or press Alt-I]
   put some general information here, plus a floating slider with more specific info:
   +++^10em^[view details...|click for details]
      put some detail here, which could include a rollover with a +++^25em^*[glossary definition]explaining technical terms===
   ===
===
===
!!!!!Installation
<<<
import (or copy/paste) the following tiddlers into your document:
''NestedSlidersPlugin'' (tagged with <<tag systemConfig>>)
<<<
!!!!!Revision History
<<<
''2007.05.31 - 2.0.4'' add handling to invoke adjustSliderPanel() for onmouseover events on slider button and panel.  This allows the panel position to be re-synced when the button position shifts due to changes in unrelated content above it on the page.  (thanks to Harsha for bug report)
''2007.03.30 - 2.0.3'' added chkFloatingSlidersAnimate (default to FALSE), so that slider animation can be disabled independent of the overall document animation setting (avoids strange rendering and focus problems in floating panels)
''2007.03.01 - 2.0.2'' for TW2.2+, hijack Morpher.prototype.stop so that "overflow:hidden" can be reset to "overflow:visible" after animation ends
''2007.03.01 - 2.0.1'' in hijack for Slider.prototype.stop, use apply() to pass params to core function
|please see [[NestedSlidersPluginHistory]] for additional revision details|
''2005.11.03 - 1.0.0'' initial public release
<<<
!!!!!Credits
<<<
This feature was implemented by EricShulman from [[ELS Design Studios|http:/www.elsdesign.com]] with initial research and suggestions from RodneyGomes, GeoffSlocock, and PaulPetterson.
<<<
!!!!!Code
***/
//{{{
version.extensions.nestedSliders = {major: 2, minor: 0, revision: 4, date: new Date(2007,5,31)};
//}}}

//{{{
// options for deferred rendering of sliders that are not initially displayed
if (config.options.chkDebugLazySliderDefer==undefined) config.options.chkDebugLazySliderDefer=false;
if (config.options.chkDebugLazySliderRender==undefined) config.options.chkDebugLazySliderRender=false;
if (config.options.chkFloatingSlidersAnimate==undefined) config.options.chkFloatingSlidersAnimate=false;

// default styles for 'floating' class
setStylesheet(".floatingPanel { position:absolute; z-index:10; padding:0.5em; margin:0em; \
	background-color:#eee; color:#000; border:1px solid #000; text-align:left; }","floatingPanelStylesheet");
//}}}

//{{{
config.formatters.push( {
	name: "nestedSliders",
	match: "\\n?\\+{3}",
	terminator: "\\s*\\={3}\\n?",
	lookahead: "\\n?\\+{3}(\\+)?(\\([^\\)]*\\))?(\\!*)?(\\^(?:[^\\^\\*\\[\\>]*\\^)?)?(\\*)?(?:\\{\\{([\\w]+[\\s\\w]*)\\{)?(\\[[^\\]]*\\])?(?:\\}{3})?(\\>)?(\\.\\.\\.)?\\s*",
	handler: function(w)
		{
			// defopen=lookaheadMatch[1]
			// cookiename=lookaheadMatch[2]
			// header=lookaheadMatch[3]
			// panelwidth=lookaheadMatch[4]
			// rollover=lookaheadMatch[5]
			// class=lookaheadMatch[6]
			// label=lookaheadMatch[7]
			// blockquote=lookaheadMatch[8]
			// deferred=lookaheadMatch[9]

			 lookaheadRegExp = new RegExp(this.lookahead,"mg");
			lookaheadRegExp.lastIndex = w.matchStart;
			var lookaheadMatch = lookaheadRegExp.exec(w.source)
			if(lookaheadMatch && lookaheadMatch.index == w.matchStart)
			{
				// location for rendering button and panel
				var place=w.output;

				// default to closed, no cookie, no accesskey
				var show="none"; var title=">"; var tooltip="show"; var cookie=""; var key="";

				// extra "+", default to open
				if (lookaheadMatch[1])
					{ show="block"; title="<"; tooltip="hide"; }

				// cookie, use saved open/closed state
				if (lookaheadMatch[2]) {
					cookie=lookaheadMatch[2].trim().slice(1,-1);
					cookie="chkSlider"+cookie;
					if (config.options[cookie]==undefined)
						{ config.options[cookie] = (show=="block") }
					if (config.options[cookie])
						{ show="block"; title="<"; tooltip="hide"; }
					else
						{ show="none"; title=">"; tooltip="show"; }
				}

				// parse custom label/tooltip/accesskey: [label=X|tooltip]
				if (lookaheadMatch[7]) {
					title = lookaheadMatch[7].trim().slice(1,-1);
					var pos=title.indexOf("|");
					if (pos!=-1) { tooltip = title.substr(pos+1,title.length); title=title.substr(0,pos); }
					if (title.substr(title.length-2,1)=="=") { key=title.substr(title.length-1,1); title=title.slice(0,-2); }
					if (pos==-1) tooltip += " "+title; // default tooltip: "show/hide <title>"
				}

				// create the button
				if (lookaheadMatch[3]) { // use "Hn" header format instead of button/link
					var lvl=(lookaheadMatch[3].length>6)?6:lookaheadMatch[3].length;
					var btn = createTiddlyElement(createTiddlyElement(place,"h"+lvl,null,null,null),"a",null,lookaheadMatch[6],title);
					btn.onclick=onClickNestedSlider;
					btn.setAttribute("href","javascript:;");
					btn.setAttribute("title",tooltip);
				}
				else
					var btn = createTiddlyButton(place,title,tooltip,onClickNestedSlider,lookaheadMatch[6]);

				// set extra button attributes
				btn.sliderCookie = cookie; // save the cookiename (if any) in the button object
				btn.defOpen=lookaheadMatch[1]!=null; // save default open/closed state (boolean)
				btn.keyparam=key; // save the access key letter ("" if none)
				if (key.length) {
					btn.setAttribute("accessKey",key); // init access key
					btn.onfocus=function(){this.setAttribute("accessKey",this.keyparam);}; // **reclaim** access key on focus
				}

				// "non-click" MouseOver opens/closes slider
				if (lookaheadMatch[5]) btn.onmouseover=onClickNestedSlider;
				// otherwise, mouseover aligns floater position with button
				else btn.onmouseover=function(event)
					{ window.adjustSliderPos(this.parentNode,this,this.sliderPanel,this.sliderPanel.className); }

				// create slider panel
				var panelClass=lookaheadMatch[4]?"floatingPanel":"sliderPanel";
				var panel=createTiddlyElement(place,"div",null,panelClass,null);
				panel.button = btn; // so the slider panel know which button it belongs to
				panel.defaultPanelWidth=(lookaheadMatch[4] && lookaheadMatch[4].length>2)?lookaheadMatch[4].slice(1,-1):""; // save requested panel size
				btn.sliderPanel=panel;
				panel.style.display = show;
				panel.style.width=panel.defaultPanelWidth;
				panel.onmouseover=function(event) // mouseover aligns floater position with button
					{ window.adjustSliderPos(this.parentNode,this.button,this,this.className); }

				// render slider (or defer until shown) 
				w.nextMatch = lookaheadMatch.index + lookaheadMatch[0].length;
				if ((show=="block")||!lookaheadMatch[9]) {
					// render now if panel is supposed to be shown or NOT deferred rendering
					w.subWikify(lookaheadMatch[8]?createTiddlyElement(panel,"blockquote"):panel,this.terminator);
					// align floater position with button
					window.adjustSliderPos(place,btn,panel,panelClass);
				}
				else {
					var src = w.source.substr(w.nextMatch);
					var endpos=findMatchingDelimiter(src,"+++","===");
					panel.setAttribute("raw",src.substr(0,endpos));
					panel.setAttribute("blockquote",lookaheadMatch[8]?"true":"false");
					panel.setAttribute("rendered","false");
					w.nextMatch += endpos+3;
					if (w.source.substr(w.nextMatch,1)=="\n") w.nextMatch++;
					if (config.options.chkDebugLazySliderDefer) alert("deferred '"+title+"':\n\n"+panel.getAttribute("raw"));
				}
			}
		}
	}
)

// TBD: ignore 'quoted' delimiters (e.g., "{{{+++foo===}}}" isn't really a slider)
function findMatchingDelimiter(src,starttext,endtext) {
	var startpos = 0;
	var endpos = src.indexOf(endtext);
	// check for nested delimiters
	while (src.substring(startpos,endpos-1).indexOf(starttext)!=-1) {
		// count number of nested 'starts'
		var startcount=0;
		var temp = src.substring(startpos,endpos-1);
		var pos=temp.indexOf(starttext);
		while (pos!=-1)  { startcount++; pos=temp.indexOf(starttext,pos+starttext.length); }
		// set up to check for additional 'starts' after adjusting endpos
		startpos=endpos+endtext.length;
		// find endpos for corresponding number of matching 'ends'
		while (startcount && endpos!=-1) {
			endpos = src.indexOf(endtext,endpos+endtext.length);
			startcount--;
		}
	}
	return (endpos==-1)?src.length:endpos;
}
//}}}

//{{{
window.onClickNestedSlider=function(e)
{
	if (!e) var e = window.event;
	var theTarget = resolveTarget(e);
	var theLabel = theTarget.firstChild.data;
	var theSlider = theTarget.sliderPanel
	var isOpen = theSlider.style.display!="none";
	// if using default button labels, toggle labels
	if (theLabel==">") theTarget.firstChild.data = "<";
	else if (theLabel=="<") theTarget.firstChild.data = ">";
	// if using default tooltips, toggle tooltips
	if (theTarget.getAttribute("title")=="show")
		theTarget.setAttribute("title","hide");
	else if (theTarget.getAttribute("title")=="hide")
		theTarget.setAttribute("title","show");
	if (theTarget.getAttribute("title")=="show "+theLabel)
		theTarget.setAttribute("title","hide "+theLabel);
	else if (theTarget.getAttribute("title")=="hide "+theLabel)
		theTarget.setAttribute("title","show "+theLabel);
	// deferred rendering (if needed)
	if (theSlider.getAttribute("rendered")=="false") {
		if (config.options.chkDebugLazySliderRender)
			alert("rendering '"+theLabel+"':\n\n"+theSlider.getAttribute("raw"));
		var place=theSlider;
		if (theSlider.getAttribute("blockquote")=="true")
			place=createTiddlyElement(place,"blockquote");
		wikify(theSlider.getAttribute("raw"),place);
		theSlider.setAttribute("rendered","true");
	}
	// show/hide the slider
	if(config.options.chkAnimate && (theSlider.className!='floatingPanel' || config.options.chkFloatingSlidersAnimate))
		anim.startAnimating(new Slider(theSlider,!isOpen,e.shiftKey || e.altKey,"none"));
	else
		theSlider.style.display = isOpen ? "none" : "block";
	// reset to default width (might have been changed via plugin code)
	theSlider.style.width=theSlider.defaultPanelWidth;
	// align floater panel position with target button
	if (!isOpen) window.adjustSliderPos(theSlider.parentNode,theTarget,theSlider,theSlider.className);
	// if showing panel, set focus to first 'focus-able' element in panel
	if (theSlider.style.display!="none") {
		var ctrls=theSlider.getElementsByTagName("*");
		for (var c=0; c<ctrls.length; c++) {
			var t=ctrls[c].tagName.toLowerCase();
			if ((t=="input" && ctrls[c].type!="hidden") || t=="textarea" || t=="select")
				{ ctrls[c].focus(); break; }
		}
	}
	if (this.sliderCookie && this.sliderCookie.length) {
		config.options[this.sliderCookie]=!isOpen;
		if (config.options[this.sliderCookie]!=this.defOpen)
			saveOptionCookie(this.sliderCookie);
		else { // remove cookie if slider is in default display state
			var ex=new Date(); ex.setTime(ex.getTime()-1000);
			document.cookie = this.sliderCookie+"=novalue; path=/; expires="+ex.toGMTString();
		}
	}
	return false;
}

// TW2.1 and earlier:
// hijack Slider animation handler 'stop' handler so overflow is visible after animation has completed
Slider.prototype.coreStop = Slider.prototype.stop;
Slider.prototype.stop = function()
	{ this.coreStop.apply(this,arguments); this.element.style.overflow = "visible"; }

// TW2.2+
// hijack Morpher animation handler 'stop' handler so overflow is visible after animation has completed
if (version.major+.1*version.minor+.01*version.revision>=2.2) {
	Morpher.prototype.coreStop = Morpher.prototype.stop;
	Morpher.prototype.stop = function()
		{ this.coreStop.apply(this,arguments); this.element.style.overflow = "visible"; }
}

// adjust floating panel position based on button position
if (window.adjustSliderPos==undefined) window.adjustSliderPos=function(place,btn,panel,panelClass) {
	if (panelClass=="floatingPanel") {
		var left=0;
		var top=btn.offsetHeight; 
		if (place.style.position!="relative") {
			var left=findPosX(btn);
			var top=findPosY(btn)+btn.offsetHeight;
			var p=place; while (p && p.className!='floatingPanel') p=p.parentNode;
			if (p) { left-=findPosX(p); top-=findPosY(p); }
		}
		if (left+panel.offsetWidth > getWindowWidth()) left=getWindowWidth()-panel.offsetWidth-15;
		panel.style.left=left+"px"; panel.style.top=top+"px";
	}
}

function getWindowWidth() {
	if(document.width!=undefined)
		return document.width; // moz (FF)
	if(document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) )
		return document.documentElement.clientWidth; // IE6
	if(document.body && ( document.body.clientWidth || document.body.clientHeight ) )
		return document.body.clientWidth; // IE4
	if(window.innerWidth!=undefined)
		return window.innerWidth; // IE - general
	return 0; // unknown
}
//}}}