Liferay Portal: Avoid scrolling after navigation - scroll

I have this page in a Liferay 6.0.5 portal which contains of a looong Document Library list, and at the bottom of the page (several screen-heights down, normally) there's a custom portlet with some editing tools. When a user navigates with the tool links, he or she always has to do a lot of annoying scrolling down to the lower portlet to continue his/her work, and I'm looking to fix this.
Looking through the source, I came across the following in /html/common/themes/bottom_js.jspf:
<%
String scroll = ParamUtil.getString(request, "scroll");
%>
<c:if test="<%= Validator.isNotNull(scroll) %>">
Liferay.on(
'allPortletsReady',
function(event) {
document.getElementById('<%= HtmlUtil.escape(scroll) %>').scrollIntoView();
}
);
</c:if>
However, the parameter scroll is a non-namespaced ("global") request parameter. Is it possible to generate such URL parameters through the portlet API? (I.e., using <portlet:renderURL> or possibly <liferay-portlet:renderURL>?
Of course, I'll happily take suggestions to other solutions as well!
Regards
Gustav

In fact, Liferay's implementation of PortletURL handles the URL parameter scroll (and a handful of others) in a special way - it is not namespaced.

Related

Link directly to a notebook page in a view

I have an view that extends the current project view, where we add multiple tabs (notebook pages) to show information from other parts of a project.
One of these pages is an overview page that summarizes what is under the other tabs, and I'd like to link the headlines for each section directly to each displayed page. I've currently solved this by using the index of each tab and calling bootstrap's .tab('show') method on the link within the tab:
$(".overview-link").click(function (e) {
e.preventDefault();
var sel = '.nav-tabs a:eq(' + $(this).data('tab-index') + ')';
$(sel).tab('show');
});
This works since I've attached a data-tab-index="<int>" to each header link in my widget code, but it's brittle - if someone adds a tab later, the current indices will be broken. Earlier I relied on the anchor on each tab, but that broke as well (and would probably break if a new notebook page were inserted as well).
Triggering a web client redirect / form link directly works, but I want to show a specific page in the view:
this.do_action({
type: 'ir.actions.act_window',
res_model: 'my.model.name',
res_id: 'my.object.id',
view_mode: 'form',
view_type: 'form',
views: [[false, 'form']],
target: 'current'
});
Is there any way to link / redirect the web client directly to a specific notebook page tab through the do_action method or similar on FormWidget?
If I understood well you want to select the tab from the JavaScript (jQuery) FormWidget taking into account that the id could change if anybody install another module that adds another tab
Solution 0
You can add a class to the page in the xml form view. You can use the id of the element selected by this class name in order to call the right anchor and select the right tab item. This should happen when the page is completely loaded:
<page class="nb_page_to_select">
$('a[href=#' + $('.nb_page_to_select').attr('id') + ']').click()
NOTE: As you have said the following paragrah I assume that you know where to run this instruction. The solution I suggest is independent of the index.
This works since I've attached a data-tab-index="<int>" to each
header link in my widget code, but it's brittle - if someone adds a
tab later, the current indices will be broken. Earlier I relied on the
anchor on each tab, but that broke as well (and would probably break
if a new notebook page were inserted as well).
Solution 1
When the page is loaded you can get the tab list DOM object like this:
var tablist = $('ul[role="tablist"]')
And then you can click on the specifict tab, selecing by the text inside the anchor. So you don't depend on the tab index:
tablist.find('a:contains("Other Information")').click()
I think if you have two tabs with the same text does not make any sense, so this should be sufficient.
Solution 2
Even if you want to be more specific you can add a class to the notebook to make sure you are in the correct notebook
<notebook class="nt_to_change">
Now you can use one of this expressions in order to select the tab list
var tablist = $('div.nt_to_change ul.nav-tabs[role="tablist"]')
// or
var tablist = $('div.nt_to_change ul[role="tablist"]')
Solution 3
If the contains selector doesn't convince you because it should be equal you can do this as well to compare and filter
tablist.find('a').filter(function() {
return $.trim($(this).text()) === "Other Information";
}).click();
Where "Other Information" is the string of the notebook page
I didn't tried the solution I'm giving to you, but if it doesn't work at least may be it makes you come up with some idea.
There's a parameter for XML elements named autofocus (for buttons and fields is default_focus and takes 1 or 0 as value). If you add autofocus="autofocus" to a page in XML, this page will be the displayed one when you open the view.
So, you can try to add this through JavaScript, when the user clicks on the respective link -which honestly, I don't know how to achieve that by now-. But you can add a distinctive context parameter to each link in XML, for example context="{'page_to_display': 'page x'}". When you click on the link, I hope these context keys will arrive to your JS method.
If not, you can also modify the fields_view_get method (here I wrote how to do that: Odoo - Hide button for specific user) to check if you get the context you've added to your links and add the autofocus parameter to the respective page.
As you said:
This works since I've attached a data-tab-index="" to each header
link in my widget code, but it's brittle - if someone adds a tab
later, the current indices will be broken.
I assume that your app allow multi-user interaction in realtime, so you have to integrate somewhere in your code, an update part function.
This function will trig if something has changed and cleanout the data to rebuilt the index in order to avoid that the current indices will be broken.

How can I add a URL parameter but hide others in a POST - Spring MVC

I'm trying to add a URL parameter within a Spring MVC application. It's a basic search page that shows results.
In the search page, there is a form that is set to POST. There are many hidden fields and other fields I don't want in the URL. So, I don't want to do a GET.
I do want the search query in the URL. So after clicking the search button, the resulting search results page needs to have a URL like /search?query=hello
To get it to work, I'm creating a RequestMapping method in the Spring MVC Controller and doing a redirect: tacking on the query parameter. However, I'm not sure using a redirect is the best answer, seems there could be performance concerns redirecting as well.
I looked around and noticed folks using javascript and the location object, but setting the location object obviously relaunches the URL you set it to. I also looked at the HTTPServletResponse & HTTPServletRequest objects, but couldn't find much.
Any thoughts on how I can force the search parameter to be added to the URL?
Your form will have an 'action' specified telling it where to POST to. I'd have thought you could attach an onclick event to your submit button (or an onsubmit event to your form) that updates the action url by appending "?query=" to it.
document.<form name>.action += "?query=...";
Then you just have to worry about someone posting your form without JavaScript enabled - in this case you could fall back to your redirect.
I don't know how the server technology so I can't say if it will be happy giving you both GET and POST parameters, if not you'll have to manually strip the GETs out of the URL.
But anyway, this seems like a rather odd situation to be in - is it really that big a deal to show the parameters in the URL? Anything that gets posted by an HTML form can still be inspected with the right tools, it's just ever so slightly more difficult.
I wanted to provide a more complete answer to my question with code. The previous user helped me down this path, so I'll keep it as the accepted answer. However, there is one item to note:
If you add on to the action, and you have an input text box with the same name, the page posts a duplicate value like: query=hello,hello.
So, I needed to remove the name on the input box, and use the following javascript. Note, I am using the prototype.js framework:
Event.observe(window, 'load', function(event) {
Event.observe('searchForm', 'submit', function(event) {
$('searchForm').action += "?query="+$('searchBox').value;
});

Ajax content getting loaded multiple times with JQuery UI Tabs

Hi
I am basically calling individual php pages (and their forms) via AJAX in separate JQueryUI tabs. The code is something like:
<div id="dock">
<ul>
<li>Home</li>
<li>Profile</li>
<li>Statistics</li>
<li>Pings</li>
</ul>
</div>
...
jQuery(function($) {
jQuery('#dock').tabs({'collapsible':false});
});
1) Now every time I click on the tabs, their content gets loaded fine but the previous content does not get destroyed. As a result, imagine if a tab was clicked (loaded) N times - a form is also submitted N times. As far as I have understood, multiple bindings occurs here and hence the multiple form submits. How can I prevent this?
2) I have separate forms in each tab. When multiple tabs are selected, multiple forms get loaded. Now if I submit a value (via AJAX) in any one of the form, the data is submitted across all the forms which were previously loaded (Checked with Firebug). How can I prevent this again ?
PS: Enabling caching in tabs partially solved problem #1, but does not help with problem #2.
PPS: I went through quite a few similar posts but I am still stuck :(
Thanks !
From the little bit of code there, it looks like your problems may arise from using the same page (index.php) for each of the tabs. Check these:
Does each form have a separate ID? They should.
Disable caching in both 'cache' and 'ajaxOptions'. This will make sure content is refreshed (and removed) with each click.
How are your forms submitting via AJAX? Regardless of the method, you should handle your form bindings for each tab select through the "load" option.
Try this...
$("#dock").tabs({
load: function (event, ui) {
//setup new content bindings here
},
cache: false,
ajaxOptions: {
cache: false
}
});

Hot to implement grails server-side-triggered dialog, or how to break out of update region after AJAX call

In grails, I use the mechanism below in order to implement what I'd call a conditional server-side-triggered dialog: When a form is submitted, data must first be processed by a controller. Based on the outcome, there must either be a) a modal Yes/No confirmation in front of the "old" screen or b) a redirect to a new controller/view replacing the "old" screen (no confirmation required).
So here's my current approach:
In the originating view, I have a <g:formRemote name="requestForm" url="[controller:'test', action:'testRequest']", update:"dummyRegion"> and a
<span id="dummyRegion"> which is hidden by CSS
When submitting the form, the test controller checks if a confirmation is necessary and if so, renders a template with a yui-based dialog including Yes No buttons in front of the old screen (which works fine because the dialog "comes from" the dummyRegion, not overwriting the page). When Yes is pressed, the right other controller & action is called and the old screen is replaced, if No is pressed, the dialog is cancelled and the "old" screen is shown again without the dialog. Works well until here.
When submitting the form and test controller sees that NO confirmation is necessary, I would usually directly redirect to the right other controller & action. But the problem is that the corresponding view of that controller does not appear because it is rendered in the invisble dummyRegion as well. So I currently use a GSP template including a javascript redirect which I render instead. However a javascript redirect is often not allowed by the browser and I think it's not a clean solution.
So (finally ;-) my question is: How do I get a controller redirect to cause the corresponding view to "break out" of my AJAX dummyRegion, replacing the whole screen again?
Or: Do you have a better approach for what I have in mind? But please note that I cannot check on the client side whether the confirmation is necessary, there needs to be a server call! Also I'd like to avoid that the whole page has to be refreshed just for the confirmation dialog to pop up (which would also be possible without AJAX).
Thanks for any hints!
I know, it's not an "integrated" solution, but have you considered to do this "manually" with some JS library of your choice (my personal choice would be jQuery, but any other of the established libraries should do the trick)? This way you wouldn't depend on any update "region", but could do whatever you want (such as updating any DOM element) in the response handler of the AJAX request.
Just a thought. My personal experience is that the "built-in" AJAX/JS stuff in Grails often lacks some flexibility and I've always been better off just doing everything in plain jQuery.
This sounds like a good use-case for using web flows. If you want to show Form A, do some kind of check, and then either move onto NextScreen or show a Dialog that later redirects to NextScreen, then you could accomplish this with a flow:
def shoppingCartFlow = {
showFormA {
on("submit") {
if(needToShowDialog())return
}.to "showNextScreen"
on("return").to "showDialog"
}
showDialog {
on("submit").to "showNextScreen"
}
showNextScreen {
redirect(controller:"nextController", action:"nextAction")
}
}
Then you create a showDialog.gsp that pops up the dialog.
--EDIT--
But, you want an Ajax response to the first form submit, which WebFlow does not support. This tutorial, though, will teach you how to Ajaxify your web flow.

sIFR - override link click with onRelease?

I've got sIFR setup to replace a navigation menu (looks pretty slick). It's individually replacing the LIs and their internal links. I have an onRelease tag that throws properly, extracts the actual href link address, all good so far. I want to tie this into an AJAX page loader, with backwards-compatability (+SEO) for the individual pages being able to load themselves. I've tried return false like I would for standard links, no dice.
I'm assuming it doesn't work because it's onRelease, not onClick or something BEFORE it is already changing the page? onClick doesn't seem to be a valid sIFR function, documentation at http://wiki.novemberborn.net/sifr3/JavaScript+Methods says onRollOver, onRollOut, and onRelease. It would be a shame to have to pitch my entire AJAX system, there is hopefully a good workaround!
There isn't really an option to prevent the default behaviour. You can change it in sIFR.as though. Assuming the <li> contains just a <a> remove the following around line 505:
getURL(sIFR.instance.primaryLink, sIFR.instance.primaryLinkTarget);
That will prevent sIFR from following the URL when you click on the link. It'll still work with right-click though, but you might be able to fix that by changing (line 508):
menu.customItems = menuItems;
to
menu.customItems = [];

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