I'm trying to start using Polymer with Meteor, but have seen the following behaviour that I can't explain.
To reproduce git clone https://github.com/JeremyKells/meteor-polymer-testing.git and run meteor.
This is just the app created with:
meteor create testpoly
and then adding the polymer components with bower:
bower install --save Polymer/polymer
bower install --save PolymerElements/iron-elements
bower install --save PolymerElements/paper-elements
and adding the section to the code .
As is this runs ok, but if you remove the comments around either of these two lines:
<!-- <link rel="import" href="/bower_components/paper-dropdown/paper-dropdown.html"> -->
<!-- <link rel="import" href="/bower_components/paper-dialog/paper-action-dialog.html"> -->
The app shows the normal meteor counter app twice like this:
http://i.stack.imgur.com/KAv7Z.png
Why is this happening? How do I stop this?
Further info following Guissouma's response. I'm running this on Ubuntu 15.04, and mainly testing with chrome. When the UI elements are duplicated, clicking either button only updates the second 'counter', the first count remains at zero.
And on Firefox in this same environment, there is just the one set of UI elements, but the button does not work.
i.stack.imgur.com/bqumz.png
Trying with both Safari and Chrome on iphone connecting to this server give same results as firefox: It looks ok, but the button doesn't update the count value.
I tested the project with meteor on windows, it works as expected! I remove the comments from headers.html The app shows the normal meteor counter app.
On ubuntu 15.0.4 with firefox the button seem not working, this is due to the js file webcomponents.js imported on headers.html file.
Try to comment this line on headers.html and test again.
<!-- <script src="/bower_components/webcomponentsjs/webcomponents.min.js"></script> -->
This was a case of getting the import links wrong, when changing from Polymer 0.5 to Polymer 1.0.
It should be:
<link rel="import" href="/bower_components/paper-dropdown-menu/paper-dropdown-menu.html">
<link rel="import" href="/bower_components/paper-dialog/paper-dialog.html">
While I'm still confused as to why this caused html tags to be duplicated, and why this doesn't throw an error in the browser, it all works when I get the code correct!
tl;dr
Make sure your bower dependencies for Polymer and PaperElements are up to date. (i.e. use #^1.0.0 instead of #1.0.0.)
Details
The root cause of this issue is two fold:
Meteor responds with the content of the main page even when there is no resource at the path request, but it does not use a 404 (Not Found) status code.
HTML imports will include a referenced document into the page unless the response is an error.
It doesn't even matter if you're using Polymer. The following Meteor app will exhibit the duplication behavior:
<head>
<link rel="import" href="bad-link.html">
</head>
<body>
I'm Duplicated!<br>
</body>
The solution is to make sure your HTML imports are valid.
In my case, paper-icon-button.html had an import for paper-behaviors/paper-radio-button-behavior.html which doesn't exist in the latest version of paper-behaviors.
The reason for the inconsistency is because paper-icon-button was locked at version #1.0.0 but its own bower dependencies referenced paper-behaviors#^1.0.0 which means the latest version >= 1.0.0 and < 2.0.0.
The solution was to change my bower dependencies versions to use the semver caret syntax as well.
{
"dependecies": {
"polymer": "Polymer/polymer#^1.2.0",
"paper-icon-button": "PolymerElements/paper-icon-button#^1.0.0"
}
}
Related
I have problem similar to this, except that I'm using polymer template from this.
I imported all polymerfire references both in the page where <firebase-app> is declared and in the page where <firebase-query> is used. Not working.
I found later that the template uses polymerfire which version is v0.9.4 instead of the latest v0.10.3. I tried uninstalling and re-installing the new version. Nothing changed.
For additional information, here's a snippet of the code:
src/app-auth/app-auth-firebase.html
<link rel="import" href="../../bower_components/polymerfire/polymerfire.html">
<link rel="import" href="../../bower_components/polymerfire/firebase-app.html">
<link rel="import" href="../../bower_components/polymerfire/firebase-auth.html">
<link rel="import" href="../../bower_components/polymerfire/firebase-query.html">
...
<firebase-app name="pwa-demo" api-key="abc" auth-domain="abc" database-url="abc"></firebase-app>
<firebase-auth id="auth" app-name="pwa-demo" signed-in="{{_signedIn}}" user="{{_user}}"on-error="_onAuthError"></firebase-auth>
src/app-pages/app-page-new-stuff/app-page-new-stuff.html
<link rel="import" href="../../../bower_components/polymerfire/firebase-auth.html">
<link rel="import" href="../../../bower_components/polymerfire/firebase-query.html">
<link rel="import" href="../../../bower_components/polymerfire/polymerfire.html">
...
<firebase-auth user="{{user}}"></firebase-auth>
<firebase-query id="stuffquery" app-name="pwa-demo" path="/users/[[user.uid]]/events" data="{{events}}"> </firebase-query>
...
_onFormSubmit: function() {
this.$.stuffquery.ref.push({
title: this.$.piTitle.value
});
}
Is there anything else that I'm missing? Please help.
EDIT:
I found two other weird things, which might be helpful. First, I couldn't do both retrieving the data and pushing the data from and to my app. Second, when I attempt to run firebase.database() in browser console, I got "Firebase: No Firebase App '[DEFAULT]' has been created - call Firebase App.initializeApp() (app/no-app)."
Anyone?
After days of frustration, it works. Apparently.
TL;DR
What I did is updating polymerfire and omitting the name attribute from any firebase element.
Explanation
Looking at this, it seems firebase initializes the app in __computeApp method and name is an optional variable but will be used in initialization if it is provided. Ignore it and everything should be okay. In my case, it works both for <firebase-app>, <firebase-auth>, and <firebase-query> (for pushing data, because i'm still stuck in using firebase-query for fetching data)
While it works in my case, it might not necessarily the right solution. It might not work in your case. It took me days to figure it out so for those who are in similar problems, one of these might help:
Inspect firebase query attribute. Refer to this
Try import polymerfire/polymerfire.html in the same html file where <firebase-app> is declared. Refer to this
Update polymerfire. Simply uninstall and reinstall it might solve the case (for those with outdated version of polymerfire)
Omit name attribute from any firebase element. I know my <firebase-app> is successfully initialized when I type firebase.database() in browser console, it doesn't give error anymore.
Hope it helps.
I'm using Bootstrap to develop a website and recently I asked here a question because some custom simple lines in CSS weren't working. I discovered that using development sites such as jsfiddle or codepen, the code works but I can't still get it working in my computer.
Do I need to install do something or install something? I thought it could be an issue of not using a web server, but I've just installed XAMPP and nothing...
In the end, I'm using XAMPP, with proper path xampp_path/etsit/index.html --> localhost/etsit/index.html. This doesn't work, there's no error in the cosole. When I just click in index.html to open it with the browser, it doesn't work either.
For bootstrap, I just add these links to the body (JUST FOR YOU TO KNOW I HAVEN'T DOWNLOADED BOOTSTRAP BUT I'M USING CDN):
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
UPDATE
Sample in codepen and jsfiddle that work.
The original (it's the same code) you can find it in these other post I made.
UPDATE 2
Please, read the post entirely before editing my question and marking it as duplicate, not noticing that same question is mine and has been referenced twice in the post....
Based on your answers in the comments section, it seems as though you are not loading your CSS file. You've stated that you do indeed have a link to it in your in your code. So either a) that link is now gone (in which case you would not see it at all in your dev tools' network tab); or b) the link is incorrect (in which case you would be getting something like a 404 error in your network tab). Make sure the path to your CSS file is indeed correct and that it exists at the location that you are defining.
I'm trying to make my meteor app visible to crawlers.
I've added the Spiderable package and installed Phantom.js.
When I to go localhost:3000/?_escaped_fragment_=, it's blank.
When I view the source, it's almost empty, and it ends right before the <script> tag that loads the Google Maps API:
<!DOCTYPE html><html><head>
<link rel="stylesheet" href="/eecc60f7c55db2915697d4beb05274f355ad19e4.css">
<title></title>
<!-- Google Maps -->
</head></html>
I haven't encountered any issues with this before, but it got me thinking that maybe I shouldn't be including custom <scrpit> (or <link>) tags in the app's <head>. If this is true - what is the correct way to load external assets? If it's not related to the issue, I'd appreciate any advice.
Thanks!
In relation to your first question, I am not 100% sure about this being the cause of your problem, but to answer the second, you shouldn't be including scripts/stylesheets in the head of your Meteor application.
Meteor combines all of the client-side js, css, and html for your app, and sends it all together to the client. This means you can just include your stylesheet and scripts in your app's client folder. I would try putting your stylesheets/scripts in the correct place and removing the links in your head and see if that solves your issue.
You can find more detailed descriptions of meteor here.
I am very confused, I just started to work on the CSS for my ASP.NET MVC4 website and I don't fully understand what is happening.
Currently my mobile layout works but any changes to it causes one strange effect after another. (e.g. the forms not being displayed to the ajax-loader.gif constantly being displayed.)
I have the following in .Layout.Mobile.cshtml
#Styles.Render("~/Content/Mobile/css", "~/Content/jquerymobile/css")
<link rel="stylesheet" href="~/Content/Mobile/css/jquery.mobile-1.2.0.min.css" />
<link rel="stylesheet" href="~/Content/Mobile/css/jquery.mobile-1.2.0.css" />
<link rel="stylesheet" href="~/Content/Mobile/css/jquery.mobile.theme-1.2.0.css" />
#Scripts.Render("~/bundles/jquery", "~/bundles/jquerymobile")
<script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
<script src="http://code.jquery.com/mobile/latest/jquery.mobile.min.js"></script>
I have modified the BundleMobileConfig.cs in App_start as follows:
// bundles.Add(new StyleBundle("~/Content/Mobile/css")
// .Include("~/Content/Site.Mobile.css"));
//kludge is the above wrong...and the following needed??
bundles.Add(new StyleBundle("~/Content/Mobile/css")
.Include("~/Content/Site.Mobile.css",
"~/Content/Mobile/css/"));
I don't understand why this is NOT the default for this bundle?
Here are my questions / problems:
If you will note the stylesheets, I should not need to include the three explicit links, they should come from the bundles. But if delete any of them the site breaks.
Why won't the modified ~/Content/Mobile/css bundle pull up these css files?
For the script files I have looked at the code.jquery.com and I don't understand why I need these. My local code is the latest (i.e. jquery-1.9.1.js and jquery.mobile-1.2.0.js
I would expect that the version 1.9.1 shoud be able to replace the 1.7.1 without
problems, but it doesn't
The jquery.mobile.min.js should only be switching between a release and debug
vesion, which should not cause a problem, but it does.
I have used firebug to view what files are being loaded and I see that when I use just
the Render of the bundles without the explicit includes I don't get the files included, why not? I have read about bundles and it seems like I should just get the bundled files.
Can any one shed some light on what is happening and point me to a tutorial so I can learn
how to use how to debug CSS and bundles. I have read several and I find firebug very
useful, but I have no idea where to look next.
Try replacing your bundle code with this.
bundles.Add(new StyleBundle("~/Content/Mobile/css")
.Include("~/Content/Site.Mobile.css",
"~/Content/Mobile/jquery.mobile*"));
This should load your files without explicitly doing so.
Your right this did work! Thanks....
The strange thing is that the following did not work:
bundles.Add(new StyleBundle("~/Content/Mobile/css")
.Include("~/Content/Site.Mobile.css",
"~/Content/Mobile/css/jquery.mobile-{version}.js",
"~/Content/Mobile/css/jquery.mobile.theme-{version}.js",
"~/Content/Mobile/css/jquery.mobile.structure-{version}.js",
"~/Content/Mobile/css/"));
I understand why your example works...but don't understand why mine doesn't ... unless the version tag does not work like I expect it to....
Also I found out the jquery 1.9.1 is much different from 1.7.1 for this I had to do the following:
#Scripts.Render("~/bundles/jquery")
#Scripts.Render("~/bundles/jquerymobile")
<script src="~/Scripts/jquery-1.9.1.js"></script>
<script src="~/Scripts/jquery-migrate-1.1.1.js"></script>
<script src="~/Scripts/jquery.mobile-1.2.0.js"></script>
this works....using your example I will figure out a wild card pattern to include this as well.
I'm trying to implement a TinyMCE plugin with ExtJs, with a demo as example, found here: link.
This fails because I receive an "Ext is not defined" error in Firebug. I basically copied the example, I only used a newer version of Ext. First of all the css and scripts are included:
<link href="scripts/extjs/resources/css/ext-all.css" rel="stylesheet" type="text/css" />
<script src="scripts/extjs/ext-all.js" type="text/javascript"></script>
<script src="scripts/miframe/miframe-min.js" type="text/javascript"></script>
<script src="scripts/tinymce/jscripts/tiny_mce/tiny_mce_src.js" type="text/javascript"></script>
<script src="scripts/ux/Ext.ux.TinyMCE.js" type="text/javascript"></script>
Firebug does not complain, all the scripts are found on the specified paths and are included.
Next I call the Ext function in the head of my aspx document,
<script type="text/javascript">
console.log("Ready...");
Ext.onReady(function() {
console.log("set...");
Ext.get("cmdOpen").on("click", function() {
console.log("GO");
var dlg = new Ext.Window({
//etc
</script>
The console.log("Ready...") shows up in the console, then the code breaks. There are four references to "Ext is not defined", in ext-all.js(), miframe-min.js(), Ext.ux.TinyMCE.js() and in the code in the .aspx file. (Default.aspx)
I did not alter any aspect of the included files, they are official releases.
Am I perhaps missing a statement somewhere? Or do I have to include other things still? I have honestly no clue.
Even when including ext-all(-debug).js, you still need to include the ext-base.js file before that, otherwise you will get the "Ext is not defined error". Not sure by your last comment if you are already past this or not, but I thought I would point it out. Please see this page for complete details on how your includes should be set up:
http://www.extjs.com/learn/Tutorial:HTML_Page_Setup
there is a firefox extension called "jsview", it allows you to see what scripts and css files are included on a page.
When navigating to the link you include at the top of your post and opening the ExtJs file, you'll notice that the example provided is using version 2.1 of the code.
The Ext.ux.TinyMCE v0.6 has a corresponding blog post here. You will notice that it specifically requires:
Firefox 2+, Opera 9+, MSIE 7
ExtJS 2.1
TinyMCE 3.1.0.1
Ext.ux.ManagedIframePanel
Be aware that when plugging in a newer versions of the TinyMCE or ExtJs libraries, there might (read will) be breaking changes that you will then have to resolve. You could try scrape the files directly from the example to ensure you have a working version.
If you choose to use ExtJs v3+, get the latest components:
1) ux.ManagedIframe has been maintained more recently and even upgraded for ExtJS 3.x here
2) Read through the ux.TinyMce thread and download the latest version. I think it's 0.7b. If you're still having problems, that's probably the best place to find answers.
copy the lib folder in your eclipse workspace`s exjts project folder and just give the relative paths, is should than work
Go to ExtJs website and make sure you download and included all the necessary files and IN ORDER,also using a newer version might break the code.
try it with simpler examples and only reference the ext stuff and see if it loads