I'm writing my first Windows 8 application, but I'm stuck already.
What I want to do is display an html/winjs element, depending on which index is clicked in a listview.
The current code I've written works to some extent. It will display the first element (albumListView), but after that no other items will show. I've read through the WinJS docs, but I still can't figure out what I'm doing wrong.
What am I doing wrong? And is there an easier way to do what I'm trying to achieve?
Here's the code I've written:
My html:
<div id="albumListView" class="hidden" data-win-control="WinJS.UI.ListView" data-win-options="{itemTemplate:select('#albumTemplate'), layout:{type:WinJS.UI.GridLayout}, selectionMode:'none'}"></div>
<div id="songsListView" class="hidden" data-win-control="WinJS.UI.ListView" data-win-options="{itemTemplate:select('#songsTemplate'), layout:{type:WinJS.UI.ListLayout}}"></div>
My CSS:
.hidden {
display:none;
}
My JS:
function hidePanelViewItems() { //hide all panel items
var items = [albumListView, songsListView];
for (var i = 0; i < items.length; i++) {
WinJS.Utilities.addClass(items[i], "hidden");
}
return true;
}
function showItem(item) { //show a single item in the panel
hidePanelViewItems();
WinJS.Utilities.toggleClass(item, "hidden");
return true;
}
args.setPromise(WinJS.UI.processAll().done(function () {
//hide all panel listviews
hidePanelViewItems();
//show the album view as a default
showItem(albumListView);
//deal with menu item clicks
menuListView.addEventListener("iteminvoked", function (eventInfo) {
switch (eventInfo.detail.itemIndex)
{
case 0:
showItem(albumListView);
break;
case 1:
showItem(songsListView);
break;
}
});
}))
Thanks in advance for any replies :)
I ran into something similar. If you set a listview's style to display:none, you need to call forceLayout() to make it visible again. http://msdn.microsoft.com/en-us/library/windows/apps/hh758352.aspx
Solved! After hours of messing around with this code, I have now discovered that it was fine all along! The problem was that data wasn't actually binding to my listviews, as they were hidden!
Related
I'm currently attempting to make a menu which is expandable when clicked, stays open, until a child is clicked, then user should be taken to that page, and the menu should still be expanded when that site is reached. (currently it collapses).
I have currently got the part down where i have a menu that expands and show childs when clicked. It's currently made in javascript. I'm making the menu with wordpress, and wordpress automatically adds class "current-menu-item" to the li which is being visited (if that helps).
var clickMenu = function() {
var getEls = document.getElementById("menu-shopmenu").getElementsByTagName("LI");
var getAgn = getEls;
for (var i=0; i<getEls.length; i++) {
getEls[i].onclick=function() {
for (var x=0; x<getAgn.length; x++) {
getAgn[x].className=getAgn[x].className.replace("unclick", "");
getAgn[x].className=getAgn[x].className.replace("click", "unclick");
}
if ((this.className.indexOf('unclick'))!=-1) {
this.className=this.className.replace("unclick", "");;
}
else {
this.className+=" click";
}
}
getEls[i].onmouseover=function() {
this.className+=" hover";
}
getEls[i].onmouseout=function() {
this.className=this.className.replace("hover", "");
}
}
}
window.addEventListener("load", clickMenu);
Now I'm just looking for help making it stay expanded once new page is loaded.
Also, will these two functions make a conflict in the design?
You can just check 'parent' of current-menu-item element. And apply display:block or any other css which makes menu element visible.
check below code if it meets your requirements.
$(document).ready(function(){
$(".current-menu-item").parent("your_parent_ul_div").css("display": "block");
});
ref-https://api.jquery.com/parent/
ref->Expand parent menu if child menu is selected
ref->https://webdesignerhut.com/active-class-navigation-menu/
I have the following working Javascript function:
function collapsible(zap) {
if (document.getElementById) {
var abra = document.getElementById(zap).style;
if (abra.display == "block") {
abra.display = "none";
} else {
abra.display = "block";
}
return false;
} else {
return true;
}
}
When I use the following in html code it displays or hides the "element" div:
<li>Element</li>
Thats working fine. But the problem is, that I want to use the function for multiple links, and then the other elements, that were clicked before, stay, open.
How can I reprogram the code, so that only one div stays open and the other gets closed if i click on another link?
Thanks beforehand!
If you could use jQuery and more importantly jQueryUI accordion I think it would accomplish exactly what you're looking for.
However, without using those two, here is how I would structure it. Like mentioned above, I would use classes to modify the styles of the divs you want shown or hidden. Then the js code can just toggle those classes on each of your elements. The slightly more difficult part (without jquery) is modifying class values since in your final application you may have lots of classes on each div. This is just a very crude example to get you going.
Working JSFiddle Example
Sample DOM
<div >
<li>Element1</li>
<div id='elem1' class='myelem visible'>
Element 1 contents
</div>
</div>
<div >
<li>Element2</li>
<div id='elem2' class='myelem'>
Element 2 contents
</div>
</div>
<div >
<li>Element3</li>
<div id='elem3' class='myelem'>
Element 3 contents
</div>
</div>
Sample JS
window['collapsible'] = function(zap) {
if (document.getElementById)
{
var visDivs = document.getElementsByClassName('visible');
for(var i = 0; i < visDivs.length; i++)
{
visDivs[i].className = visDivs[i].className.replace('visible','');
}
document.getElementById(zap).className += " visible";
return false;
}
else
return true;
}
Sample CSS:
.myelem {
display: none;
}
.visible {
display: block;
}
The way to go is to create a class(or maybe two), like collapsible and active or open that has this style(display: block or none) and then you working adding or removing the class.
The logic would be:
Links that has the class collapsible when clicked would add the active or open class which would give the behavior that remains opens(or active) by css.
If you want to hide others elements you would look for the elements with the class collapsible and then remove the active(or open) class if has any.
Here is my solution: http://jsfiddle.net/g5oc0uoq/
$('.content').hide();
$('.listelement').on('click', function(){
if(!($(this).children('.content').is(':visible'))){
$('.content').slideUp();
$(this).children('.content').slideDown();
} else {
$('.content').slideUp();
}
});
show() and hide() can be used instead of slideUp() and slideDown() if you have performance issues.
i need to have a back button on my slide to return to the previous div. I did several test but without success.
there is my JS
function SlideOut(element) {
$(".opened").removeClass("opened");
$("#" + element).addClass("opened");
$("#content").removeClass().addClass(element);
}
$("#content div").click(function () {
var move = $(this).attr('data-move');
SlideOut(move);
});
There is the demo link:
http://jsfiddle.net/VA5Pv/
thanks
You could create a history. I edited the fiddle with some dirty code but the idea is there:
var history = [];
var last;
$("#content div").click(function () {
var move = $(this).attr('data-move');
if (last) history.push(last);
last = move;
SlideOut(move);
});
$("#back").click(function () {
SlideOut(history.pop());
return false;
});
http://jsfiddle.net/VA5Pv/1/
Basically: store the "move" variable in a history array. When you want to go back, pop the last value out of the history array.
Reset
If you just want to return to the initial state (no slides opened), just add the following:
$('button.close').click(function() {
$('.opened').removeClass('opened');
});
Tracking a full history is overkill in this case.
Demo: http://jsfiddle.net/VA5Pv/4/
History
Several answers suggested using a history. Most of them used an array which keeps track of the slides the user opened and then simply pop from that to "go back".
var history = [];
$('#content div').click(function() {
var move = $(this).attr('data-move');
history.push(move);
SlideOut();
});
$('button.close').click(function() {
history.pop();
SlideOut();
});
function SlideOut() {
var element = history[history.length - 1];
// ... same as before ...
}
This would be necessary if you wanted to allow the user to open any number of slides in any order and always present them with a button to go back to the previously opened slide.
Sequence
Another solution could have been to store all the slide IDs in an array and keep a counter that tells you at which slide you are. Going back would mean decrementing the counter if it is not already at zero and then switching to that particular slide.
This would be useful if you were trying to create something like a presentation where each slide is opened in sequence and the transitions are entirely linear.
This is why I asked you to clarify what you were trying to build. Depending on the use case, the solutions could have been vastly different and far more complex than what you were actually looking for.
Thanks for accepting my answer and welcome to StackOverflow. Feel free to upvote any answers you found helpful even if they did not answer your question sufficiently.
try the following:
$('.anim button').click(function(){$(this).parent().removeClass('opened');});
I assigned this to the button in div rouge. But the target could be anything in that div you want the user to click on ...
see here: JSfiddle
Here is the DEMO
<div id="fullContainer">
<div id="right" class="anim"></div>
<div id="rouge" class="anim">Hello world!
<button class="close">Close</button>
</div>
</div>
<div id="centerContainer">
<div id="relativeContainer">
<div id="content">
<div data-move="right">Open Right</div>
<div data-move="rouge">Open Rouge</div>
<div id="back">Back</div>
</div>
function SlideOut(element) {
if(element == undefined) {
$('#back').hide();
}
$(".opened").removeClass("opened");
$("#" + element).addClass("opened");
$("#content").removeClass().addClass(element);
}
$("#content div").click(function () {
var move = $(this).attr('data-move');
$('#back').show();
SlideOut(move);
});
I have a page with a content accordion with 8 items. I also have an h4 tag on the page outside of the accordion. I want to hide which ever content accordion item matches the text inside the h4 tag.
The text inside the h4 tag and the content accordion items might change so I need to use variables (I think).
Here is what I have so far:
var category = $('.leftColumnNav h4').html();
var topic = $('.contentAccordionItemTitle p').html();
if(topic === category){
$(".contentAccordionItemTitle").css("display", "none");
} else {
$(".contentAccordionItemTitle").css("display", "block");
}
What I have sort of works. It successfully hides the .contentAccordionItemTitle. Unfortunately it obviously hides all of them. I just want to hide the one that matches the h4 tag.
If it's needed I can probably create a JSFiddle example.
var category = $('.leftColumnNav h4').text();
$(".contentAccordionItemTitle").each(function() {
if ($(this).text() === category) { $(this).hide() }
})
var topic = $('.contentAccordionItemTitle p').html();
That line means you're getting all the p-tags. If you want to continue down this solution, you could use the jQuery each function -> http://api.jquery.com/each/
$(".contentAccordionItemTitle").css("display", "none");
} else {
$(".contentAccordionItemTitle").css("display", "block");
The $(".contentAccordionItemTitle") also gets all elements with this class.
You should use a loop, like jQuery each:
var category = jQuery('.leftColumnNav h4').html();
jQuery('.contentAccordionItemTitle p').each(function() {
if(jQuery(this).html() === category) {
jQuery(this).parent('.contentAccordionItemTitle').css('display', 'none');
} else {
jQuery(this).parent('.contentAccordionItemTitle').css('display', 'block');
}
This is assuming there is only one element that matches jQuery('.leftColumnNav h4')
Please refer to the following codes :
<div id="message-1" onclick="javascript:showresponddiv(this.id)>
</div>
<div id="respond-1" style="display:none;">
</div>
<div id="message-2" onclick="javascript:showresponddiv(this.id)>
</div>
<div id="respond-2" style="display:none;">
</div>
<script type="text/javascript">
function showresponddiv(messagedivid){
var responddivid = messagedivid.replace("message-", "respond-");
if (document.getElementById(responddivid).style.display=="none"){
document.getElementById(responddivid).style.display="inline";
} else {
document.getElementById(responddivid).style.display="none";
}
}
</script>
The codes above already success make the respond div appear when user click on message div. The respond div will disappear when user click on message div again. Now my question is how to make the respond div of 1st message disappear when user click on 2nd message to display the respond div of 2nd message?
You should give the "respond" divs a common class:
<div id="respond-1" class="response' style="display:none;"></div>
Then you can get all divs by using getElementsByTagName, compare the class and hide them on a match:
function hideAllResponses() {
var divs = document.getElementsByTagName('div');
for(var i = divs.length; i-- ;) {
var div = divs[i];
if(div.className === 'response') {
div.style.display = 'none';
}
}
}
We cannot use getElementsByClassName, because this method is not supported by IE8 and below. But of course this method can be extended to make use of it if it is supported (same for querySelectorAll). This is left as an exercise for the reader.
Further notes:
Adding javascript: to the click handler is syntactically not wrong but totally unnecessary. Just do:
onclick="showresponddiv(this.id)"
If you have to do a lot of DOM manipulation of this kind, you should have a look at a library such as jQuery which greatly simplify such tasks.
Update: If always only one response is shown and you are worried about speed, then store a reference to opened one:
var current = null;
function showresponddiv(messagedivid){
var id = messagedivid.replace("message-", "respond-"),
div = document.getElementById(id);
// hide previous one
if(current && current !== div) {
current.style.display = 'none';
}
if (div.style.display=="none"){
div.style.display="inline";
current = div;
}
else {
div.style.display="none";
}
}
Edit: Fixed logic. See a DEMO.
You can add some class to all divs with id="respond-"
e.g
<div id="respond-1" class="classname" style="display:none;"></div>
<div id="respond-2" class="classname" style="display:none;"></div>
Now at first row of your function "showresponddiv()" you should find all divs with class "classname" and hide them.
With jQuery it is simple code:
$(".classname").hide();
jQuery - is a Javascript Library that helps you to easy manipulate with DOM and provides cross-browser compatibility.
Also you can look to Sizzle - it is a JavaScript CSS selector engine used by jQuery for selecting DOM elements