wanted: simple HTML file that does disclosure triangle <div> hide/reveal
I have a program that produces a text report. I want it to make an HTML report with mult开发者_运维问答iple disclosure triangles, so that when you click a triangle more of the report shows or hides. I am okay with embedding JavaScript inside the file, but I really want it all in a single file, with no additional files. Is there an easy way to do this with modern browsers?
If you don't care about compatibility with Internet Explorer, you could use the html tag: http://www.w3schools.com/tags/tag_details.asp
Its a very quick way to prototype disclosure triangles. For example:
<details>
<summary>The contents of the summary tag is always visible</summary>
<p>Everything else inside the details tag will be hidden in a disclosure triangle</p>
</details>
The simplest way is something like this:
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script>
<style>.wrapper div { display:none;}</style>
<script>
$(function() {
$('.wrapper h2').click(function() { $(this).next().toggle();});
});
</script>
</head>
<body>
<div class="wrapper">
<h2>Example header 1</h2>
<div>bodytext 1</div>
</div>
<div class="wrapper">
<h2>Example header 2</h2>
<div>bodytext 2</div>
</div>
<div class="wrapper">
<h2>Example header 3</h2>
<div>bodytext 3</div>
</div>
</body>
</html>
I have made a simple working example here: http://jsfiddle.net/NXuQt/1/
It isn't pretty but should give you the simple template you need.
Note that in this solution, the entire header is click-able... I figure adding an image and changing it as part of the click event is something you can take care of yoruself, otherwise let me know :)
Note: The javascript is based on the inclusion of the jQuery library.
EDIT: I updated the answer to copy/paste ready working code, the reason you couldn't make it work as it was, was because i had only taken the essentials from the fiddle example. The fiddle automatically ran the click handler initialization at DOMready, which the updated example now has built in :)
With straight HTML, no. That's not what it's for. You will need to use a scripting language, either JavaScript or VBScript, most likely.
This is a script I've used in the past (not mine, but I don't have the URI of the original):
var timerlen = 5;
var slideAniLen = 250;
var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
var moving = new Array();
var dir = new Array();
function slidedown(objname)
{
if(moving[objname])
return;
if(document.getElementById(objname).style.display != "none")
return; // cannot slide down something that is already visible
moving[objname] = true;
dir[objname] = "down";
startslide(objname);
}
function slideup(objname)
{
if(moving[objname])
return;
if(document.getElementById(objname).style.display == "none")
return; // cannot slide up something that is already hidden
moving[objname] = true;
dir[objname] = "up";
startslide(objname);
}
function startslide(objname)
{
obj[objname] = document.getElementById(objname);
endHeight[objname] = parseInt(obj[objname].style.height);
startTime[objname] = (new Date()).getTime();
if(dir[objname] == "down")
{
obj[objname].style.height = "1px";
}
obj[objname].style.display = "block";
timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
}
function slidetick(objname)
{
var elapsed = (new Date()).getTime() - startTime[objname];
if (elapsed > slideAniLen)
{
endSlide(objname)
}
else
{
var d =Math.round(elapsed / slideAniLen * endHeight[objname]);
if(dir[objname] == "up")
d = endHeight[objname] - d;
obj[objname].style.height = d + "px";
}
return;
}
function endSlide(objname)
{
clearInterval(timerID[objname]);
if(dir[objname] == "up")
obj[objname].style.display = "none";
obj[objname].style.height = endHeight[objname] + "px";
delete(moving[objname]);
delete(timerID[objname]);
delete(startTime[objname]);
delete(endHeight[objname]);
delete(obj[objname]);
delete(dir[objname]);
return;
}
function toggleSlide(objname)
{
if(document.getElementById(objname).style.display == "none")
{
// div is hidden, so let's slide down
slidedown(objname);
}
else
{
// div is not hidden, so slide up
slideup(objname);
}
}
You would assign a call to toggleSlide() to the onclick() event of the element you want to toggle.
CSS:
.hidden {
display: none;
}
Javascript:
function createSection(section, hidden) {
var triangle = section.children[0]; // assumes the triangle image is the first child of a section (see HTML)
var contents = section.children[1];
triangle.onclick = function() {
if (contents.className.indexOf("hidden") != -1) { // the section is hidden
contents.className = contents.className.replace("hidden", "");
} else { // the section wasn't hidden
contents.className += " hidden";
}
}
if (hidden) {
contents.className += " hidden";
}
}
// Create the sections when window loads
window.onload = function() {
createSection(document.getElementById("section1"));
createSection(document.getElementById("section2"), true);
}
HTML:
<div id="section1">
<img src="triangle.jpg"></img>
<div>This is the section content</div>
</div>
<div id="section2">
<img src="triangle.jpg"></img>
<div>this section is hidden by default</div>
</div>
Obviously you would have to change some things to your own html file
Well, after some fiddling around, I was able to make a file that does what I want using the switchcontent.js and switchicon.js javascript files I found at http://www.dynamicdrive.com/dynamicindex17/switchcontent2.htm
Here's my code, based on editing down theirs:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Dynamic Drive DHTML scripts- Switch Content Script II (icon based)</title>
<script type="text/javascript" src="switchcontent.js" ></script>
<script type="text/javascript" src="switchicon.js"></script>
<style type="text/css">
/* Specifies title style */
.iconspan{
margin: 3px;
cursor:hand;
cursor:pointer;
font-weight: bold;
}
</style>
</head>
<body>
<span id="faqtable1-title" class="iconspan"></span>
How hot is our Sun?<br/>
<div id="faqtable1" class="icongroup2">
The surface of the Sun is around 5800 Kelvin, while the core reaches over 15 million Kelvin.
</div>
<br>
<span id="faqtable2-title" class="iconspan"></span>
How big is our Sun in terms of mass? <br/>
<div id="faqtable2" class="icongroup2">
The contains more than 99.8% of the total mass of our Solar System.
</div>
<script type="text/javascript">
var faqtable=new switchicon("icongroup2", "div")
faqtable.setHeader('▼', '▶') //Set header HTML
faqtable.collapsePrevious(false) //Allow more than 1 content to be open simultanously
faqtable.setPersist(true, 7) //Enable persistence to remember last switch content states for 7 days
faqtable.init()
</script>
</body>
</html>
It looks like this when closed:
▶ How hot is our Sun?
▶ How big is our Sun in terms of mass?
And this when opened:
▼ How hot is our Sun?
The surface of the Sun is around 5800 Kelvin, while the core reaches over 15 million Kelvin.
▼ How big is our Sun in terms of mass?
The contains more than 99.8% of the total mass of our Solar System.
加载中,请稍侯......
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