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.
Related
I've followed MDN's document to create a toggle button addon.
Everything works fine except one problem:
Open a second browser window (cmd+n or ctrl+n) and click on the toggle button there
Click on the toggle button on the original browser window without closing the toggle button on the second window
the toggle button's panel becomes blank with the following error message:
JavaScript error: resource:///modules/WindowsPreviewPerTab.jsm, line 406: NS_ERR
OR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIT
askbarTabPreview.invalidate]
// ./lib/main.js
var { ToggleButton } = require("sdk/ui/button/toggle");
var panels = require("sdk/panel");
var self = require("sdk/self");
var buttonIndex = 0;
var lastKnownButtonIndex = 0;
var button = ToggleButton({
id: "button",
label: "my button",
icon: {
"16": "./icon-16.png"
},
onClick: handleChange,
});
var panel = panels.Panel({
contentURL: self.data.url("menu.html"),
onHide: handleHide
});
function handleChange(state) {
if (state.checked) {
panel.show({
position: button
});
}
}
function handleHide() {
button.state('window', {checked: false});
}
function assignButtonIndex() {
return (buttonIndex++).toString();
}
The complete addon is here: https://goo.gl/9N3jle
To reproduce: Extract the zip file and $ cd testButton; cfx run and follow the above steps.
I really hope someone can help me with this. Thank you in advance!
It's a bug; you're not doing anything wrong. It's a racing condition between the windows' focus events, and the panel's event, that prevent somehow the panel's hidden event to be emitted properly.
You can try to mitigate with a workaround the issue until is properly fixed. I added some explanation in the bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1174425#c2 but in short, you can try to add a setTimeout to delay a bit when the panel is shown, in order to avoid the racing condition with the window's focus. Something like:
const { setTimeout } = require("sdk/timers");
/* ... your code here ... */
function handleChange(state) {
if (state.checked) {
setTimeout(() => panel.show({ position: button }), 100);
}
}
I am currently using a workaround where I dynamically create a new Panel every time the user presses the toolbar button.
It is faster than the 100ms workaround and also handles a scenario where the user outright closes one of the browser windows while the panel is open. (The 100ms workaround fails in this case and a blank panel is still displayed.)
It works like this:
let myPanel = null;
const toolbarButton = ToggleButton({
...,
onChange: function (state) {
if (state.checked) {
createPanel();
}
}
});
function createPanel(){
// Prevent memory leaks
if(myPanel){
myPanel.destroy();
}
// Create a new instance of the panel
myPanel = Panel({
...,
onHide: function(){
// Destroy the panel instead of just hiding it.
myPanel.destroy();
}
});
// Display the panel immediately
myPanel.show();
}
I made a simple page with some divs being sortable by the jQuery UI Sortable, with a little help from Touch Punch to get it working on an iPad running iOS 7.1.2.
Inside each of these divs, I included a text input tag. On desktop browsers the inputs work fine, but the iPad doesn't recognize the click on the input component. The keyboard isn't launched and I can't type into it. Any lights?
My page is here: https://www.dropbox.com/s/5crp55r9jw98var/sortableTest.zip?dl=0
Well, here's what worked for me.
I edited the jquery.js. On jQuery.Event.prototype, inside the preventDefault function, there is:
if ( e.preventDefault ) {
e.preventDefault();
} else {
e.returnValue = false;
}
Basically, I changed the if condition to e.preventDefault && e.target.tagName != "INPUT". It solved the example, but in the real life I needed to add some more conditions to ensure that other input fields won't get caught by this.
Change in jquery.ui.touch-punch.js worked for me.
JS: jquery.ui.touch-punch.js
Method to modify:
//line: 31
function simulateMouseEvent(event, simulatedType) {
//...
}
//changes to add ++
if ($(event.target).is("input") || $(event.target).is("textarea")) {
return;
} else {
event.preventDefault();
}
I know this is an old question but got the following to work for me without modifying the JS files:
let detectTap = false;
$('body').on('touchstart', '#sortableMenu input', () => {
detectTap = true;
});
$('body').on('touchmove', '#sortableMenu input', () => {
detectTap = false;
});
$('body').on('touchend', '#sortableMenu input', (e) => {
if (detectTap) $(e.target).focus();
});
Basically just adding a tap listener on the inputs, and when it gets the tap, focus on that input.
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 use jstree and jquery-ui v1.10.1 .I use context menu on tree and i want before delete node show confirm dialog(like jquery-ui dialog).
I use dialog in "before.jstree" event, but when show dialog box, before an option is selected(yes or no) ,the selected node is deleted.
How to solve this problem?
.bind("before.jstree", function(e, data) {
if (data.func === "remove") {
if (!confirmRemove()) {
e.stopImmediatePropagation();
return false;
}
}
}
function confirmRemove() {
return $confirmDialog.dialog('open');
}
I'm using the 2.1.0 version and there is another solution for this functionality.
What you have to do is add a function to the check_callback option.
Like this:
$("#your_tree").jstree({
"core": {
"check_callback": function (operation, node, node_parent, node_position, more) {
// operation can be 'create_node', 'rename_node', 'delete_node', 'move_node', 'copy_node' or 'edit'
// in case of 'rename_node' node_position is filled with the new node name
if (operation === 'delete_node') {
if (!confirmRemove()) {
return false;
}
}
return true;
}
}
I know that this is an old question, but i looked for a more recent question/answer and didn't find it.
Hope it helps to other people that will have the same question :)
The JQuery-UI-Dialog is asynchronous; If you call it, your eventhandler does not stop execution and waits, but goes on and deletes the Node.
Try the JavaScript-Dialog confirm() since this is synchronous and stops further execution until the User confirmed or declined the Dialog.
Is there any way to handle back button (device backbutton) as default functionality to move back page? I need to implement the same functionality on back button goes to previous page. If there is no previous page (first page) it exit the application. Is this possible in PhoneGap?
I also need to pop page before going to push another page is this posible in jQuery?
Checking window.location.length would be the easiest way to determine if you're on the first page, but this isn't available in Phonegap.
But since you're using JQM, you can either use the navigate event as Omar suggests or could manually count the number of pages shown and the number of pages gone back (same thing) and use this to determine if the first page is being shown and whether to exit the app. Something like this would work:
var pageHistoryCount = 0;
var goingBack = false;
$(document).bind("pageshow", function(e, data) {
if (goingBack) {
goingBack = false;
} else {
pageHistoryCount++;
console.log("Showing page #"+pageHistoryCount);
}
});
function exitApp() {
console.log("Exiting app");
navigator.app.exitApp();
}
function onPressBack(e) {
e.preventDefault();
if(pageHistoryCount > 0) pageHistoryCount--;
if (pageHistoryCount == 0) {
navigator.notification.confirm("Are you sure you want to quit?", function(result){
if(result == 2){
exitApp();
}else{
pageHistoryCount++;
}
}, 'Quit My App', 'Cancel,Ok');
} else {
goingBack = true;
console.log("Going back to page #"+pageHistoryCount);
window.history.back();
}
}
function deviceready() {
$(document).bind('backbutton', onPressBack);
}
$(document).bind('deviceready', deviceready);
As for the second part of your question:
Secondly i need to pop page before going to push another page is this
posible in jquery ?
It's not clear what you're asking here. Do you mean you want to show some kind of popup content like a dialog between every page change? Please clarify then I can help you :-)