I need to pass some values to a template and then print the template. How can I achieve that? Thanks in advance.
As I understand, you want to automatically start printing of rendered gsp page.
You shouldn't try to do this from the controller, the controller is used for passing parameters to .gsp page which is rendered as HTML.
You can automatically start printer by putting this javascript in your gsp file:
<script>
$(document).ready(function(){
window.print();
});
</script>
Related
I am new to emberJS and I am trying to open a new page like 'www.google.com' from one of my page where I have my link specified in my HBS template like below.
{{#link-to 'applications.google' tagName="li"}}Google{{/link-to}}
I tried to insert the {{action}} helper inside the tag also, and wrote an action method in the controller, yet it didn't work. Not sure. Please help.
You can use normal anchor tag with full URL with protocol.
<a href='http://www.google.com'> example </a>
I did added an action helper in the HRef tag like
And in the Ember Controller I included an action as
actions: {
openGoogle() {
window.open("google.com");
}
}
It works!!!
I have the following Meteor template:
<template name="homeBoxTpl">
<div>
Some content
</div>
</template>
I have an event binding so that when a button on the page is clicked it should get the html contents of the template "homeBoxTpl" - how can this be achieved?
What you need is an event handler, and like Chase say you can access the content of meteor templates using jquery, but meteor has its own way. In order to get a copy of the html, you can place a wrapper round the content in the template, then do this:
Template.homeBoxTpl.events({
'click #someButton':function(e,t){
var templateContents = t.$('.wrapperInTemplate').html();
}
})
Here we are using Template.$ wich returns a jQuery object of those same elements.
Take a look into Template.instances for more information
Just to clarify, where is the button? Is it in another template? I assume you only render homeBoxTpl once.
In which case the event handler for the template where your button exists will have no reference to another template instance. There is no global lookup where you can find all rendered instances of a specific Template
You will have to set an unique identifier "id" for it, or some other discerning info such as a class/attribute and find it via old fashioned JS DOM selectors/traversal.
document.getElementById is fastest, but if there are multiple instances of that template, t.firstNode does give you a good starting point for the DOM traversal.
However making your code dependent on a specific DOM layout is bad practice / too much coupling. Is there any reason why the data underlying that Template's HTML content isn't available somewhere else like a session or collection? It would perhaps be more flexible too to access the data not the HTML.
You can use jquery to access what you need. For example, if you have the following template:
<template name="homeBoxTpl">
<div class="content-container">
Some content
</div>
<button id="btn" type="button">Click me</button>
</template>
Then use the following javascript:
Template.homeBoxTpl.events({
'click #btn': function(e) {
e.preventDefault();
var content = $(".content-container").text();
console.log(content); //Result is "Some content"
}
});
Hello Ember jedi masters,
I'm learning Ember's framework and get some confuses while using it with handlebars helpers.
Firstly I created some view templates in my js and html and used a containerView to group those templates.
But I'm having a trouble that I can't display the value I described in my controllers of those template views.
My HTML part is like this:
<script type="text/x-handlebars" data-template-name="main">
<p>this is main template</p>
{{outlet nav}}
</script>
<script type="text/x-handlebars" data-template-name="nav">
</script>
<script type="text/x-handlebars" data-template-name="child">
<p>this is the child in nav, value is {{value}}</p>
</script>
Here's my sample code on jsfiddle (including the JS part):
http://jsfiddle.net/9K7D4/
my question is:
while the child view is rendered from container view, I couldn't get the value which is defined in my child view's controller. I must missed something in the document.. just couldn't figure it out..
Thanks for helping me!
In your example, though the child controller instantiated during application initialization, it is not connected as the controller of the child view (I think there something missing in the framework).
Anyway, if you want to refer it in the child view, you have to lookup through the router with valueBinding: 'App.router.cController.content.value'. Note I'm using lowercase, as conventionnally, ember will create an instance of XxxController as xxxController.
Then in the template, as you want to use a property from the view itself, you must use the view keyword in order to do it.
see http://jsfiddle.net/9K7D4/14/
Currently, if we define our view as {{#view App.myView}}, ember/handlebars will wrap the view element inside a <div id="ember-1234" class='ember-view'>.
Is there a way to stop this?
You probably want to set tagName as ''.
App.MyView = Em.View.extend({
tagName: ''
});
At least it stops wrapping inner contents.
If you want to customize view element's id, you can use:
{{#view App.myView id="my-id"}}
I usually think my views as wrapper. For example, if the initial given html code is :
<div class="item"><p>my stuff></p></div>
Then I create a view with a tagName property as "div" (which is default), and classNames property as "item". This will render, with proper handlebars template :
{#view App.myView}
<p>my stuff></p>
{/view}
-> render as
<div id="ember-1234" class="ember-view item">
<p>my stuff></p>
</div>
Then if you need to have your proper ID on this div, you could define the "elementId" property on your view class (before create()). (#see source code)
I assume you are talking about the 'ember-view' class which is not customizable (element type being customizable thanks to the tagName attribute...).
Actually, Ember later uses this class to register (once!) an event listener on the document in order to dispatch events to the JS view.
I don't mind it would be that simpler to avoid using this class. There would have to find another way to select all ember's controlled element, but I have no idea how.
See source, # line 117.
If I understand you correctly you want to achieve something like jQuery's replaceWith? You can use this in Ember.js when my Pull Request gets merged: https://github.com/emberjs/ember.js/pull/574.
Also have a look at Create Ember View from a jQuery object
I have a custom handlebar helper:
Handlebars.registerHelper('foo', function(key) {
return (key + ' bar');
});
and in my html I have:
{{foo beer}}
the result is
<div id="ember127" class="ember-view">beer bar</div>
how can I make my own handlebar helper act like the ember {{unbound beer}} and just produce "beer bar" without any additional markup ?
So I think you might be confused on how the helpers, templates, and Ember views work exactly. The markup you created is expected and is the exact markup you'd get with a working unbound helper.
Ember.Handlebars templates are always placed within an Ember view object (as you have above). Something that a normal bound helper would produce would be:
<div id="ember127" class="ember-view">
<script id="metamorph-1-start" type="text/x-placeholder"></script>
beer bar
<script id="metamorph-1-end" type="text/x-placeholder"></script>
</div>
Now if you want to surround your string with some other tag than a div (lets say an anchor tag or something), then you'd need to create a view, set it's template and tag name, then append that view.
Take a look at this jsFiddle and take a look at the results pane in your inspector for some examples of what I'm talking about. Hope that clears things up for you.
Ember has a helper called unbound that lets you wrap another helper. You can thus turn your bound (automatically) foo helper into an unbound one like so
{{unbound foo beer}}