I have a piece of code like so, the aim of this code is to print out to console when a value in a.options changes where a is a custom widget. :
var a = registry.byId("options");
a.watch("search", function(){
console.log("registered change");
});
var a has a field called search
my understanding of this code is that when a change is seen in search the callback is executed.
Sadly I am not seeing this behaviour
i am using dojo 1.10
Related
I have been using selec2 version 4 with ajax option.
And I want to set a selected value, as recommended in the guideline, by adding new Option element.
A problem I have is that I do not know when to add the new option because the event select2-loaded does not seem to exist in the latest version of select 2.
Can you please let me know in what way I can know the moment when data has finished loading from the server and has finished setting up, so I can add a new option to it?
Thank you.
The Option element you mention is created by calling the Option() constructor which then constructs a HTMLOptionElement. So basically you are just adding to your DOM and don't need to do it in any select2 event. Instead just do it on document load.
Here's a very basic example of what it could look like:
$(function () {
$('#element-to-select').select2();
var option = new Option('text', 'value', true, true);
$('#element-to-select').append(option).trigger('change');
}
Note that we are calling .trigger('change') to report the change to select2 as documented here.
I am using the following directive to create a ckEditor view. There are other lines to the directive to save the data but these are not included as saving always works for me.
app.directive('ckEditor', [function () {
return {
require: '?ngModel',
link: function ($scope, elm, attr, ngModel) {
var ck = ck = CKEDITOR.replace(elm[0]);
ngModel.$render = function (value) {
ck.setData(ngModel.$modelValue);
setTimeout(function () {
ck.setData(ngModel.$modelValue);
}, 1000);
}; }
};
}])
The window appears but almost always the first time around it is empty. Then after clicking the [SOURCE] button to show the source and clicking it again the window is populated with data.
I'm very sure that the ck.setData works as I tried a ck.getData and then logged the output to the console. However it seems like ck.setData does not make the data visible at the start.
Is there some way to force the view window contents to appear?
You can call render on the model at any time and it will simply do whatever you've told it to do. In your case, calling ngModel.$render() will grab the $modelValue and pass it to ck.setData(). Angular will automatically call $render whenever it needs to during its digest cycle (i.e. whenever it notices that the model has been updated). However, I have noticed that there are times when Angular doesn't update properly, especially in instances where the $modelValue is set prior to the directive being compiled.
So, you can simply call ngModel.$render() when your modal object is set. The only problem with that is you have to have access to the ngModel object to do that, which you don't have in your controller. My suggestion would be to do the following:
In your controller:
$scope.editRow = function (row, entityType) {
$scope.modal.data = row;
$scope.modal.visible = true;
...
...
// trigger event after $scope.modal is set
$scope.$emit('modalObjectSet', $scope.modal); //passing $scope.modal is optional
}
In your directive:
ngModel.$render = function (value) {
ck.setData(ngModel.$modelValue);
};
scope.$on('modalObjectSet', function(e, modalData){
// force a call to render
ngModel.$render();
});
Its not a particularly clean solution, but it should allow you to call $render whenever you need to. I hope that helps.
UPDATE: (after your update)
I wasn't aware that your controllers were nested. This can get really icky in Angular, but I'll try to provide a few possible solutions (given that I'm not able to see all your code and project layout). Scope events (as noted here) are specific to the nesting of the scope and only emit events to child scopes. Because of that, I would suggest trying one of the three following solutions (listed in order of my personal preference):
1) Reorganize your code to have a cleaner layout (less nesting of controllers) so that your scopes are direct decendants (rather than sibling controllers).
2) I'm going to assume that 1) wasn't possible. Next I would try to use the $scope.$broadcast() function. The specs for that are listed here as well. The difference between $emit and $broadcast is that $emit only sends event to child $scopes, while $broadcast will send events to both parent and child scopes.
3) Forget using $scope events in angular and just use generic javascript events (using a framework such as jQuery or even just roll your own as in the example here)
There's a fairly simple answer to the question. I checked the DOM and found out the data was getting loaded in fact all of the time. However it was not displaying in the Chrome browser. So the problem is more of a display issue with ckEditor. Strange solution seems to be to do a resize of the ckEditor window which then makes the text visible.
This is a strange issue with ckeditor when your ckeditor is hidden by default. Trying to show the editor has a 30% chance of the editor being uneditable and the editor data is cleared. If you are trying to hide/show your editor, use a css trick like position:absolute;left-9999px; to hide the editor and just return it back by css. This way, the ckeditor is not being removed in the DOM but is just positioned elsewhere.
Use this java script code that is very simple and effective.Note editor1 is my textarea id
<script>
$(function () {
CKEDITOR.timestamp= new Date();
CKEDITOR.replace('editor1');
});
</script>
Second way In controller ,when your query is fetch data from database then use th
is code after .success(function().
$http.get(url).success(function(){
CKEDITOR.replace('editor1');
});
I know, that this thread is dead for a year, but I got the same problem and I found another (still ugly) solution to this problem:
instance.setData(html, function(){
instance.setData(html);
});
I have textarea which is required field. I've found post suggesting that Dojo doesn't have validation for Textarea, but in Dojo 1.9, there's an argument 'required'.
I've done the following:
new Textarea({required:true, value:""}, query('[name=description]')[0])
but the effect isn't what I've expected. The texarea has red border always, even if the field wasn't focused (as opposite to, for example, ValidationTextBox). But when I call:
form.validate()
the validation is passed even if the texarea is empty.
Is it possible to get Textare behave the same as in ValidationTextBox, or as for now, the validation for that component is not yet ready and I'd have to write custom version (as in linked post) or wait for next Dojo?
I've done it using mixin of SimpleTextArea and ValidationTextArea:
define(["dojo/_base/declare", "dojo/_base/lang", "dijit/form/SimpleTextarea", "dijit/form/ValidationTextBox"],
function(declare, lang, SimpleTextarea, ValidationTextBox) {
return declare('dijit.form.ValidationTextArea', [SimpleTextarea, ValidationTextBox], {
constructor: function(params){
this.constraints = {};
this.baseClass += ' dijitValidationTextArea';
},
templateString: "<textarea ${!nameAttrSetting} data-dojo-attach-point='focusNode,containerNode,textbox' autocomplete='off'></textarea>"
})
})
See also my answer in Dojo validation of a textarea
The power of Dojo lies in extending it with ease. If you really need the required functionality, then implement it. If you design it well, there should be no problem if it actually gets implemented in a new release of Dojo.
If you really want to know if such a feature exists or is in development I suggest looking at http://bugs.dojotoolkit.org. Besides, you can always contribute to the code, that's what open source is meant for.
I would like to add to the answer of Donaudampfschifffreizeitfahrt
instead of "this.baseClass += ' dijitValidationTextArea';"
I would do
this.baseClass = this.baseClass.replace('dijitTextBox', 'dijitValidationTextArea');
because
• we do not need the TextBox class if we have got a textarea mixin
• ! the "rows" parameter is mixed in but not fired/styled if the TextBox class is present ...
In the project I'm currently developing I'm using Telerik to handle the UI components.
I have to use client filtering in my current project; with "normal" expressions like: "PK_Random~eq~value" the filter works like a charm, but when I use the substring / startswith / endswith methods the debugger spit me a filterParserException with the "Expected Token" error, this is the JS code I'm using:
<script type="text/javascript">
function filter() {
var grid = $("#gridID").data("tGrid");
grid.filter("substringof(someName, 'Somevalue')");
};
</script>
I call this function with an onlick event binded to a button.
The model passed to the grid is created from a view in the db.
The telerik's version I'm using is: 2011.3.1115
Problem solved. It seems that the syntax function(property, 'value')
is not correct (even if it is described in the Telerik's userguide).
The correct syntax is similar to the other filters so property~function~'value'
If you remove the space, it should work:
grid.filter("substringof(someName,'Somevalue')");
How to "bookmark" page or content fetched using AJAX?
It looks like it can be easy if we just add the details to the "anchor", and then, use the routing or even in PHP code or Ruby on Rails's route.rb, to catch that part, and then show the content or page accordingly? (show the whole page or partial content)
Then it can be very simple? It looks like that's how facebook does it. What are other good ways to do it?
Update: There is now the HTML5 History API (pushState, popState) which deprecates the HTML4 hashchange functionality. History.js provides cross-browser compatibility and an optional hashchange fallback for HTML4 browsers.
To store the history of a page, the most popular and full featured/supported way is using hashchanges. This means that say you go from yoursite/page.html#page1 to yoursite/page.html#page2 you can track that change, and because we are using hashes it can be picked up by bookmarks and back and forward buttons.
You can find a great way to bind to hash changes using the jQuery History project
http://www.balupton.com/projects/jquery-history
There is also a full featured AJAX extension for it, allowing you to easily integrate Ajax requests to your states/hashes to transform your website into a full featured Web 2.0 Application:
http://www.balupton.com/projects/jquery-ajaxy
They both provide great documentation on their demo pages to explain what is happening and what is going on.
Here is an example of using jQuery History (as taken from the demo site):
// Bind a handler for ALL hash/state changes
$.History.bind(function(state){
// Update the current element to indicate which state we are now on
$current.text('Our current state is: ['+state+']');
// Update the page"s title with our current state on the end
document.title = document_title + ' | ' + state;
});
// Bind a handler for state: apricots
$.History.bind('/apricots',function(state){
// Update Menu
updateMenu(state);
// Show apricots tab, hide the other tabs
$tabs.hide();
$apricots.stop(true,true).fadeIn(200);
});
And an example of jQuery Ajaxy (as taken from the demo site):
'page': {
selector: '.ajaxy-page',
matches: /^\/pages\/?/,
request: function(){
// Log what is happening
window.console.debug('$.Ajaxy.configure.Controllers.page.request', [this,arguments]);
// Adjust Menu
$menu.children('.active').removeClass('active');
// Hide Content
$content.stop(true,true).fadeOut(400);
// Return true
return true;
},
response: function(){
// Prepare
var Ajaxy = $.Ajaxy; var data = this.State.Response.data; var state = this.state;
// Log what is happening
window.console.debug('$.Ajaxy.configure.Controllers.page.response', [this,arguments], data, state);
// Adjust Menu
$menu.children(':has(a[href*="'+state+'"])').addClass('active').siblings('.active').removeClass('active');
// Show Content
var Action = this;
$content.html(data.content).fadeIn(400,function(){
Action.documentReady($content);
});
// Return true
return true;
And if you ever want to get the querystring params (so yoursite/page.html#page1?a.b=1&a.c=2) you can just use:
$.History.bind(function(state){
var params = state.queryStringToJSON(); // would give you back {a:{b:1,c:2}}
}
So check out those demo links to see them in action, and for all installation and usage details.
If you use jquery, you can do that in a simple manner. just use ajaxify plugin. it can manage bookmarking of ajax pages and many other things.
Check this, something may help you:
How to change URL from javascript: http://doet.habrahabr.ru/blog/15736/
How to pack the app state into url: http://habrahabr.ru/blogs/javascript/92505/
An approach description: http://habrahabr.ru/blogs/webstandards/92300/
Note: all articles are in Russian, so either Google Translate them, or just review the code and guess the details.
Take a look to the Single Page Interface Manifesto
I tried many packages. The jQuery History plugin seems to be most complete:
http://github.com/tkyk/jquery-history-plugin