Update 2: A The following repo on github shows the problem.
Update 1: Calling #firstNode in Template.editor.rendered returns <div class="editor"></div>.
I have the following template:
<template name="editor">
<div class="editor">
{{#each objects}}
<div class="object">{{content}}</div>
{{/each}}
</div>
</template>
The data is provided by iron-router in the data callback.
The coffeescript for my template:
Template.editor.rendered = ->
#findAll('.object').draggable()
When I go into my browser and try to drag one of the objects I get the text selection cursor and begin to select the text with the div instead of the object being dragged. So what is wrong and how can I get the drag and drop to work?
The drag and drop functionality is being provided by jquery-ui. Which is installed as a smart package.
Also feel free to edit the title of this post as I had a tough time coming up with one that made sense
The solution I found was to abstract <div class="object">{{content}}</div> into a seperate template like so:
<template name="object">
<div class="object">{{content}}</div>
</template>
Then change
Template.editor.rendered = ->
#findAll('.object').draggable()
to
Template.object.rendered = ->
#findAll('.object').draggable()
As stated in meteorpedia.
Related
I am trying to do drag and drop without deleting the item from the dragged list. I followed an example Working demo and tried to reproduce the same. Unfortunately it was not working and I found that the cdkDropListDropped event is emitted. You can find the issue in this link Problematic demo
I want to achieve like the Working demo
Please show me where I am wrong.
I found I had to move the directives cdkDropList and cdkDropListConnectedTo="drop-list" from the div with ID div1 to the parent div so the HTML becomes:
<div class="column left" cdkDropList cdkDropListConnectedTo="drop-list">
<div id="div1" cdkDrag *ngFor="let type of types" [cdkDragData]="type" (cdkDragMoved)="moved($event)" (cdkDropListDropped)="itemDropped($event)">
{{type.text}}
<div *cdkDragPlaceholder class="field-placeholder"></div>
</div>
</div>
At this point the cdkDropListDropped event fired and called the itemDropped function. The problem then was, there was a runtime error on the following line:
copyArrayItem(
event.previousContainer.data,
event.container.data,
event.previousIndex,
event.currentIndex
);
After copying the itemDropped method from your working demo StackBlitz, it then started work. Please see this StackBlitz for a demo.
I am trying to move my website to Hack and XHP, of course. Below is a structure of what code structure I want to achieve:
<ui:backstageHeader>
<ui:backstageHeader-navItem href="/">stories</ui:backstageHeader-navItem>
<ui:backstageHeader-navItem href="/story/send">send a story</ui:backstageHeader-navItem>
<ui:backstageHeader-navItem href="/aboutus">support</ui:backstageHeader-navItem>
</ui:backstageHeader>
(Note: :ui:backstageHeader-navItem basically renders to <a href={$this->:href}>{$this->getCHildren}</a> so there is not need to attach its class here.)
Below is the code for :ui:backstageHeader:
final class :ui:backstageHeader extends :ui:base {
attribute :div;
children (:ui:backstageHeader-navItem)*;
protected function compose() {
$dom =
<section class="backstage-header">
<div class="container">
<div class="cell-logo">
<a href="/">
<span class="no23-logo-white"></span>
</a>
</div>
<div class="cell-navigation">
</div>
<div class="cell-account">
<div class="cell-login">
<div id="siteNav-login">Autentificare</div>
</div>
</div>
</div>
</section>;
$mainContainer = $dom->getChildren("div")[0];
$cellNavigation = $mainContainer->getChildren("div")[1];
$navItems = <ul class="main-navigation"></ul>;
foreach($this->getChildren() as $child) {
$navItems->appendChild(<li>{$child}</li>);
}
$dom->appendChild($navItems);
return $dom;
}
}
I used the Terminal to debug my code using hhvm -m d <file.php>, and everything was alright there; however, when I get to my browser, I get 500 error header. This is what the log says:
Catchable fatal error: Hack type error: Could not find method getChildren in an object of type XHPChild at /var/www/res/ui/backstage-header.php line 25
The error comes from
$cellNavigation = $mainContainer->getChildren("div")[1];
But, somehow, I need to append ul.main-navigation to div.cell-navigation from my section.backstage-header.
How can I do it?
Don't structure your code this way. Built it up from the inside out, so that you don't have to do a ton of unreadable getChildren calls looking for specific children. Those calls are super hard to read, and super inflexible when you change the structure of your XHP. You wouldn't do something like node.firstChild.lastChild.lastChild.firstChild in the JS DOM, would you? No, there's a better way in JS, to find things by class or ID; in XHP, you can just build it up the right way in the first place!
I'd give you an example of this, but it doesn't look like you actually use $mainContainer or $cellNavigation, so you can just remove those two problematic definitions.
As an aside, you really shouldn't be getting your type errors as catchable fatals from HHVM; this is a last resort sort of check. Try running the hh_client checker directly, maybe even showing its result in your IDE; it will give you a much faster iteration cycle, and much more information than HHVM provides.
From my experience, appendChild is very prone to human error. It's easier to do something like:
$items = (new Vector($this->getChildren()))->map($child ==> <li>{$child}</li>);
return <div id="container">{$items}</div>;
If you want to wrap the children in <li />.
Not sure if that will work but it will be close.
Pro tip: You can assign variables from within an XHP tree.
$root =
<div>
{$child = <span>
Text children
</span>}
</div>;
Now $child is already set to the <span> element.
How can I use jquery to change the id of a div acting as a jquery mobile popup as well as the href of the anchor pointing to the popup?
In my webapp I have an anchor that, when clicked, brings up a jquery mobile popup div all of which I'm inserting dynamically. In any instance of the webapp, I don't know how many times this code will be inserted. Therefore, my understanding is that I need to be able to dynamically create a unique id for the jquery mobile popup div and set the href of my popup icon.
I am not currently succeeding at dynamically changing the id and href. I've created the following test (JSFiddle Test).
Here is my sample html:
<div class="phone1">
<p class="textLeft"> <strong>Number: </strong><span>(555)555-5555</span>
Learn more
</p>
<div id="myPopup" data-role="popup" class="ui-content" data-theme="a" style="max-width:350px;">
<p class="flagText">This number has been flagged as incorrect</p>
</div>
</div>
Change href property
Here is my sample javascript / jquery:
$('#changeButton').click(function () {
alert("Handler for .click() called.");
$('.phone1 > a').prop('href', 'myNewPopup');
$('#myPopup').attr('id', 'myNewPopup');
});
Thank you for your help in advance!
As your anchor is not a direct child of .phone1 but rather a grandchild, the > selector does not work. Also the href needs the # symbol:
$('.phone1 a').prop('href', '#myNewPopup');
Technically you should also use prop to update the id as well:
$('#myPopup').prop('id', 'myNewPopup');
Updated FIDDLE
Are you sure you need to do this. After dynamically inserting the popup the first time, you could just update it each successive time by testing if it exists in the DOM first:
if ($("#myPopup").length > 0){
//update
} else {
//create
}
I'm trying to use jquery-ui sortable with nested templates in Meteor, as follows. Here are the two templates in question:
<template name="activityEditor">
{{! the main activity editor view }}
<div class="activity-editor">
<input type="text" name="title" class="input-xxlarge" value="{{info.title}}" placeholder="Type a title here...">
<div class="activity-steps">
{{#each info.steps}}
{{>activityStepEditor}}
{{/each}}
</div>
</div>
</template>
<template name="activityStepEditor">
{{! the container view for each step editor }}
<div class="activity-step" data-id="{{_id}}">
<div class="order">{{order}}</div>
{{!....stuff...}}
</div>
</template>
and the template code (using coffeescript):
_.extend Template.activityEditor, {
# ...stuff...
rendered: ->
$(".activity-steps").sortable {
items: '.activity-step'
handle: '.order'
update: ->
stepIds = ($(el).attr('data-id') for el in $('.activity-step'))
$('.activity-steps').empty() #this must be done in order to steps to re-render properly
Lab.Activity.reorderSteps stepIds
}
$(".activity-steps").disableSelection()
}
The only way I can get this code to work and properly rerender the order is by emptying the container of my sortable elements right after they update with $('.activity-steps').empty(). I've tried cancelling the update event and forcing a rerender by changing another variable watched in the context, but any change causes Exception from Meteor.flush(): undefined after which I can't rerender anything until page reload.
This seems to work, and everything rerenders great. So my question is: is there any reason why I shouldn't do this? Is there a better, standard practice way to handle the sortable that I'm not seeing?
In the near future there'll be a better way to do it, as Meteor team is developing its new rendering engine: http://youtube.com/watch?v=ISNEhPG0wnA
(in this video, Avital Oliver shows exactly a way to do it without redrawing the screen: the object in the list is actually moved on all clients)
See this Meteor's Github Wiki entry for more technical info:
http://github.com/meteor/meteor/wiki/New-Template-Engine-Preview
While that's not officially published, if you need it right now, you could try Nazar Leush's approach:
http://github.com/nleush/meteor-todos-sortable-animation
He also published a working example here: http://todos-dnd-animated.meteor.com
I have a list of objects. Each object has its own values. On webpage they are presented as rows. What I want to do is to add JQuery dialog that pops up when a link on a specific row is clicked. What is the best way to do that? Is is better to define a dialog in every row or just use one? Problem is I can't reach elements inside dialog to fill them with row data. Is there any good example concerning this? Thank you
Just use one dialog, it should be initially hidden anyway:
<div id="rowDialog" style="display:none">
<div id="rowDialogDiv">in here we are
</div>
<button id="rowDialogButton>Custom button</div>
</div>
initialize dialog, not showing it at first:
$('#rowDialog').dialog({ autoOpen: false });
put in an event handler for the row:
$("tr").click(function(){
var rowClicked = $(this);
$('#rowDialogDiv).text('In the dialog, show we clicked row:' + rowClicked.index());
$('#rowDialog").dialog("open");
});
Strongly suggest you give the table and ID and then access the table rows from that for speed and, just in case you have multiple tables etc.
You can also have event handlers for the dialogs elements:
$('#rowDialogButton').click(function(){
//do button stuff
});
something like this maybe?
<div id="myDialog">
<input id="myElementThatICanAccess" />
</div>
The jQuery Code:
$("#myDialog").dialog({
options:....
});
$("tr").click(function(){
$("#myElementThatICanAccess","#myDialog").val($(this).val()); // or whatever value you want
$("#myDialog").dialog('open');
});