How can we enable page-loading via ajax in primefaces-mobile. In jquery mobile, ajax page loading is by default, How to achieve this in primefaces-mobile[I read on primefaces website that primefaces mobile is powered by jquery mobile, then why doesn't it load the pages via ajax.].
By viewing the page-source of primefaces-mobile-web page, I found following clue
$(document).bind('mobileinit', function(){
$.mobile.ajaxEnabled = false;
$.mobile.linkBindingEnabled = false;
$.mobile.hashListeningEnabled = false;
$.mobile.pushStateEnabled = false;
});
Now all you have to do is to find a way to override mobileinit event, and set the above variables to true. I simply included following script in my h:head tag:
$.mobile.ajaxEnabled = true;
$.mobile.linkBindingEnabled = true;
$.mobile.hashListeningEnabled = true;
$.mobile.pushStateEnabled = true;
This served my purpose, but I am afraid, this might affect primefaces-mobile controls behaviour e.g. form submission.
Related
I have a jQuery mobile panel which slides in from the side, it works great.
But lets say you have a login page, that redirects to a main page with a panel. Now if the user opens the panel, and then clicks the back button, he expects the panel to close. But instead the browser navigates back to the login page.
I´ve tried adding something to the url:
window.location.hash = "panelOpen";
But that just messes up the jQuery mobile history state pattern. I´ve also tried to listen to the navigate event, and prevent it if a panel is open:
$(window).on('navigate', function (e, hans) {
var panels = $('[data-role="panel"].ui-panel-open');
if (panels&&panels.length>0) {
e.preventDefault();
e.stopPropagation();
$('#' + panels[0].id).panel('close');
return false;
}
});
This kind of works, except that the url is changed, and I cannot grab the event that changes the url. Furthermore, it also messes up the jQuery mobile history pattern.
So how does people achieve this expected 'app-like' behaviour with a jQuery mobile panel; open panel > history back > close panel. And thats it.
Thanks alot!
Updated
Instead of retrieving current URL from jQuery Mobile's history, It is safer to retrieve it from hashchange event event.originalEvent.newURL and then pass it to popstate event to be replaceState() with that URL.
Instead of listening to navigate, listen to popstate which fires before. The trick here is manipulate both browser's history and jQuery Mobile's history by replaceState() and reload same page without transition.
var newUrl;
$(window).on("hashchange", function (e) {
/* retrieve URL */
newUrl = e.originalEvent.newURL;
}).on("popstate", function (e) {
var direction = e.historyState.direction == "back" ? true : false,
activePanel = $(".ui-panel-open").length > 0 ? true : false,
url = newUrl,
title = document.title;
if (direction && activePanel) {
$(".ui-panel-open").panel("close");
$(".ui-header .ui-btn-active").removeClass("ui-btn-active");
/* reload same page to maintain jQM's history */
$.mobile.pageContainer.pagecontainer("change", url, {
allowSamePageTransition: true
});
/* replace state to maintain browsers history */
window.history.replaceState({}, title, url);
/* prevent navigating into history */
return false;
}
});
This part is meant to maintain same transition used previously as transition is set to none when reloading same page.
$(document).on("pagebeforechange", function (e, data) {
if (data.options && data.options.allowSamePageTransition) {
data.options.transition = "none";
} else {
data.options.transition = $.mobile.defaultPageTransition;
}
});
Demo - Code
I am a little bit late on the party, but i had recently the same requirements and i would like to share how i did it. So, i extended the requirement in the original question to Panels, Popups and Pages:
...an expected 'app-like' behaviour, history back > close
whaterver is open. And thats it.
In .on("panelopen"), .on("popupafteropen") and .on("pagecontainershow") i simply add another entry to the window history, by using the HTML5 API (https://developer.mozilla.org/en-US/docs/Web/API/History_API) (I believe there is no need to use the JQM navigate browser quirks for that):
window.history.pushState({}, window.document.title, window.location.href);
After that, i'm using more or less Omar's function to intercept the popstate event:
$(window).on("popstate", function (e) {
var pageId = $(":mobile-pagecontainer").pagecontainer("getActivePage").prop("id");
var pageOpen = (pageId != "page-home");
var panelOpen = $(".ui-panel-open").length > 0;
var popupOpen = $(".ui-popup-active").length > 0;
if(pageOpen) {
$.mobile.pageContainer.pagecontainer("change", "#page-home", {reverse: true});
return false;
}
if(panelOpen) {
$(".ui-panel-open").panel("close");
return false;
}
if(popupOpen) {
$(".ui-popup-active .ui-popup").popup("close")
return false;
}
});
As you see, the is just only one level to the home-page, but this can be easily extended by using JQM history implementation to get the previous page:
var activeId = $.mobile.navigate.history.activeIndex;
var jqmHistory = $.mobile.navigate.history.stack; // array of pages
and use pagecontainer to change to the active entry - 1.
As last note, this works well also by completely disabling the built-in JQM Ajax navigation system:
/* Completely disable navigation for mobile app */
$.mobile.ajaxEnabled = false;
$.mobile.loadingMessage = false;
$.mobile.pushStateEnabled = false;
$.mobile.hashListeningEnabled = false;
$.mobile.changePage.defaults.changeHash = false;
$.mobile.popup.prototype.options.history = false;
(Tested in Browser, on real Android and iOS devices)
I have used the standard approach to customize the default text for the Loader in jQuery Mobile 1.3.1:
$(document).on("mobileinit", function () {
$.mobile.selectmenu.prototype.options.hidePlaceholderMenuItems = true;
$.mobile.loader.prototype.options.text = "Loading...";
$.mobile.loader.prototype.options.textVisible = true;
$.mobile.loader.prototype.options.theme = "a";
$.mobile.loader.prototype.options.html = "";
});
This does not result in a custom loader showing the text 'Loading...'.
The solution was to put this code in a separate file and load it after Jquery and before JQM. Simply putting the script in between in tags did not solve the issue.
I'm developing an MVC4 mobile app using Visual Studio 2012 with jQuery Mobile. I need to remember the state of checkboxes and radio buttons so I store their value in a cookie. When I come back to the page in the pageinit event I set the values but the controls never update visually. Using Firebug with the page rendering as mobile I can see that the values changed correctly. I've tried calling checkboxradio('refresh') on the element like this:
$('#btnCompany').prop('checked', true)checkboxradio('refresh');
but I always get an error saying checkboxradio is undefined and not supported. I know the control is a radio button. To try and work around the problem I extracted the code in jQuery Mobile to refresh a radio button and checkbox which I call and again I can clearly see in Firebug that not only is the input checked correctly but the label classes have changed appropriately. However, visually nothing changes, they look like they did originally. Am I missing something? Why am I getting an error saying checkboxradio is not supported even when I call this in the pageinit event:
$("input[type='radio']").checkboxradio("refresh");
I've tried refreshing by hiding then showing the containing div but that failed. Nothing I've tried refreshes the controls visually. Any and all help would be greatly appreciated!!!
Here are the functions I'm calling to refresh the page bypassing checkboxradio. Here is the function I call to try and work around the problem:
function SetSearchFormState() {
if ($.cookie('cmdSearchForm') != null) {
//$('#searchParamsDiv').hide();
var formData = JSON.parse($.cookie('cmdSearchForm'));
$('#SearchText').val(formData.SearchText);
// Set all search buttons to not selected.
$('.searchBtn').each(function () {
$(this).prop('checked', false);
RefreshCheckboxRadio(this, false);
});
// Set the appropriate search button selected.
$('#hidSearch').val(formData.hidSearch);
switch (formData.hidSearch) {
case 'Opportunity':
$('#btnOpportunity').prop('checked', true);
RefreshCheckboxRadio($('#btnOpportunity'), true);
break;
case 'Company':
$('#btnCompany').prop('checked', true);
RefreshCheckboxRadio($('#btnCompany'), true);
break;
case 'Contact':
$('#btnContact').prop('checked', true);
RefreshCheckboxRadio($('#btnContact'), true);
break;
}
// Set all status buttons to not selected.
$('.statusBtn').each(function () {
$(this).prop('checked', false);
RefreshCheckboxRadio(this, false);
});
// Set the appropriate status button selected.
$('#hidStatus').val(formData.hidStatus);
switch (formData.hidStatus) {
case 'Lead':
$('#btnLead').prop('checked', true);
RefreshCheckboxRadio($('#btnLead'), true);
break;
case 'Prospect':
$('#btnProspect').prop('checked', true);
RefreshCheckboxRadio($('#btnProspect'), true);
break;
case 'Customer':
$('#btnCustomer').prop('checked', true);
RefreshCheckboxRadio($('#btnCustomer'), true);
break;
}
// Set the appropriate include button selected.
$('#hidAllUsers').val(formData.hidAllUsers);
$('#btnAllUsers').prop('checked', false);
RefreshCheckboxRadio($('#btnAllUsers'), false);
if (formData.hidAllUsers == 'True') {
$('#btnAllUsers').prop('checked', true);
RefreshCheckboxRadio($('#btnAllUsers'), true);
}
$('#hidDead').val(formData.hidDead);
$('#btnDead').prop('checked', false);
RefreshCheckboxRadio($('#btnDead'), false);
if (formData.hidDead == 'True') {
$('#btnDead').prop('checked', true);
RefreshCheckboxRadio($('#btnDead'), true);
}
//$('#searchParamsDiv').show();
$("input[type='radio']").checkboxradio("refresh");
$("input[type='checkbox']").checkboxradio("refresh");
}
};
And here is the function that I extracted out of jQuery mobile's checkboxradio refresh method:
function RefreshCheckboxRadio(control, value) {
if ($(control).is(':radio')) {
var parent = $(control).parent('div');
var controlId = $(control).attr('id');
var label = $(parent).find("label[for='" + controlId + "']");
var icon = $(label).find(".ui-icon");
//$(parent).hide();
if (value == false) {
$(control).removeAttr('checked');
$(label).removeClass('ui-radio-on ui-button-active').addClass('ui-radio-off');
$(icon).removeClass('ui-icon-radio-on').addClass('ui-icon-radio-off');
} else if (value == true) {
$(control).attr('checked', 'checked');
$(label).addClass('ui-radio-on ui-button-active').removeClass('ui-radio-off');
$(icon).addClass('ui-icon-radio-on').removeClass('ui-icon-radio-off');
}
//$(parent).show();
} else if ($(control).is(':checkbox')) {
var parent = $(control).parent('div');
var controlId = $(control).attr('id');
var label = $(parent).find("label[for='" + controlId + "']");
var icon = $(label).find(".ui-icon");
//$(parent).hide();
if (value == false) {
$(control).removeAttr('checked');
$(label).removeClass('ui-checkbox-on ui-button-active').addClass('ui-checkbox-off');
$(icon).removeClass('ui-icon-checkbox-on').addClass('ui-icon-checkbox-off');
} else if (value == true) {
$(control).attr('checked', 'checked');
$(label).addClass('ui-checkbox-on ui-button-active').removeClass('ui-checkbox-off');
$(icon).addClass('ui-icon-checkbox-on').removeClass('ui-icon-checkbox-off');
}
// $(parent).show();
}
};
After this code is run I can see the values are correct and exactly as they would be if checkboxradio('refresh') had been called. So even though I can't get checkboxradio to work, performing the work manually should work and in fact does when I view the changes in Firebug yet the controls still don't change their appearance.
After much experimentation I finally threw out this code, disabled Ajax in jQuery Mobile, then handled all of the Ajax manually. I could write a book about what I learned about developing jQuery Mobile apps with MVC4 and probably help many folks out there but alas I don't have the time nor do I get paid for doing so, sorry. I can only hope that someday somebody documents how to do things the right way so there's a single source people can turn to instead of having to spend hours searching for bits and pieces here and there.
I have a jQuery Mobile + backbone site. To play nice with backbone, I've also disabled routing like so:
$(document).bind("mobileinit", function () {
$.mobile.ajaxEnabled = false;
$.mobile.linkBindingEnabled = false;
$.mobile.hashListeningEnabled = false;
$.mobile.pushStateEnabled = false; });
I'd like to display a dialog via js in my jQM + backbone site:
$.mobile.changePage("#dialog",
{
transition: 'pop',
role: 'dialog',
changeHash:false
});
The problem is, this fires a hash change event. My page router picks this up and routes to an incorrect page, away from the dialog.
Why does a simple changePage with a dialog ignore the changeHash parameter? Anyone else run into this?
I know it's quite an old thread - but the problem is the following:
By: $.mobile.hashListeningEnabled = false; you are disabling the jqm routing facility and so jqm does not listen on hash changes but the backbone router does. What you need to do is to define an event in your corresponding backbone view where the dialog shall be opened - would be something like:
var YourView = Backbone.View.extend({
[...]
events: {
"click #myDialog: "openMyDialog"
},
openMyDialog:function() {
[Call your Dialog/Popup here]
}
})
I am developing a Android app using Jquery Mobile/Phonegap. I have the following code to control the phone's back button:
document.addEventListener("backbutton", backKeyDown, true);
function backKeyDown() {
// Call my back key code here.
$.mobile.changePage("#homepage", "slideup");
}
This all works fine, but I would like the app to close when pressing the back button on the homepage only, is this possible?
Update: this has stopped working with a latest Phonegap update (supposedly). Feel free to offer a working solution if you know it.
Here's how I do it:
document.addEventListener("backbutton", function(e){
if($.mobile.activePage.is('#homepage')){
/*
Event preventDefault/stopPropagation not required as adding backbutton
listener itself override the default behaviour. Refer below PhoneGap link.
*/
//e.preventDefault();
navigator.app.exitApp();
}
else {
navigator.app.backHistory()
}
}, false);
For further information, here you can find the related documentation with a full example: http://docs.phonegap.com/en/2.0.0/cordova_events_events.md.html#backbutton
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
document.addEventListener("backbutton", onBackKeyDown, false);
}
function onBackKeyDown()
{
navigator.app.exitApp();
}
Thank you spader.
You would need to keep track of when the homepage is being displayed. When you know you are on the homepage call:
navigator.app.exitApp();
If you don't want to use jQuery Mobile, change $.mobile.activePage.is('#homepage') to document.getElementById('#homepage') on #Spadar Shut answer, as on following code:
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady(){
document.addEventListener("backbutton", function(e){
if(document.getElementById('#homepage')){
e.preventDefault();
navigator.app.exitApp();
}
else {
navigator.app.backHistory()
}
}, false);
}
Through this way, don't need to download Jquery Mobile gibberish only for this purpose. Also, activePage is deprecated as of JQuery mobile 1.4.0 and will be removed from 1.5.0. (Use the getActivePage() method from the pagecontainer widget instead)