I expect to see the array ["foo", "bar"] at the second console.log(this.items). But instead, I get undefined.
Here is the jsBin.
How do I get ["foo", "bar"] instead of undefined?
http://jsbin.com/hodegimohu/edit?html,console,output
<!doctype html>
<head>
<meta charset="utf-8">
<base href="https://polygit.org/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link href="polymer/polymer.html" rel="import">
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
</head>
<body>
<dom-module id="x-element">
<script>
(function(){
Polymer({
is: 'x-element',
properties: {
items: {
type: Array,
value: ['foo','bar']
},
},
ready: function(){
console.log(this.items) // ["foo", "bar"]
google.charts.load('current', {
'packages': ['geochart']
});
google.charts.setOnLoadCallback(this._drawRegionsMap);
},
_drawRegionsMap: function() {
console.log(this.items); // undefined
},
});
})();
</script>
</dom-module>
<x-element></x-element>
</body>
Just use .bind.
google.charts.setOnLoadCallback(this._drawRegionsMap.bind(this));
Nothing more than appropriately handling the callback (Nothing polymer based).
Related
I am following the example in "Creating a new OpenUI5 Component" from the OpenUI docs, and when I run my demo page I am getting an error in the Chrome console that reads:
Uncaught Error: The specified component controller 'my.components.button.Component' could not be found!
I can navigate to 'localhost:3000/components/button/Component.js' and see the contents of the JS file. So the file exists, so i guess i am not referencing it correctly in my code (or have an unfortunate typo somewhere). How should i be referencing the component?
My folder structure looks like this:
folder structure
webapp
components
button
Within the button folder I have Component.js and Component.json.
Component.js looks like this:
jQuery.sap.require("sap.ui.core.UIComponent");
jQuery.sap.require("sap.ui.commons.Button");
jQuery.sap.declare("components.button.Component");
// new Component
sap.ui.core.UIComponent.extend("components.button.Component", {
metadata: {
properties: {
text: "string"
}
},
init: function() {
sap.ui.core.UIComponent.prototype.init.apply(this, arguments);
}
});
components.button.Component.prototype.createContent = function () {
this.oButton = new sap.ui.commons.Button("btn");
return this.oButton;
};
components.button.Component.prototype.setText = function (sText) {
this.oButton.setText(sText);
this.setProperty("text", sText);
return this;
};
And Index.html looks like this:
<!DOCTYPE html >
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta charset="utf-8">
<title>Component Test</title>
<script
id="sap-ui-bootstrap"
src="https://openui5.hana.ondemand.com/resources/sap-ui-core.js"
data-sap-ui-theme="sap_bluecrystal"
data-sap-ui-libs="sap.m"
data-sap-ui-compatVersion="edge"
data-sap-ui-preload="async"
data-sap-ui-resourceroots='{
"my": "./"
}' >
</script>
<script>
sap.ui.getCore().attachInit(function () {
var oComp1 = sap.ui.getCore().createComponent({
name: "my.components.button",
id: "Comp1",
settings: {text: "Hello World"}
});
// place this Ui Container with the Component inside into UI Area
oCompCont1.placeAt("target1");
var oCompCont2 = new sap.ui.core.ComponentContainer("CompCont2", {
name: "my.components.button",
settings: {text: "Hello World again"}
});
oCompCont2.placeAt("target2");
});
</script>
</head>
<body class="sapUiBody">
<div id="target1"></div>
<div id="target2"></div>
</body>
</html>
The correct answer was provided by #deterministicFail in the comments to the original question. I am providing the updated/corrected code here for completeness
Corrected Component.js
jQuery.sap.require("sap.ui.core.UIComponent");
jQuery.sap.require("sap.ui.commons.Button");
jQuery.sap.declare("components.button.Component");
sap.ui.core.UIComponent.extend("my.components.button.Component", {
metadata: {
properties: {
text: "string"
}
},
init: function() {
sap.ui.core.UIComponent.prototype.init.apply(this, arguments);
}
});
my.components.button.Component.prototype.createContent = function () {
this.oButton = new sap.ui.commons.Button("btn");
return this.oButton;
};
my.components.button.Component.prototype.setText = function (sText) {
this.oButton.setText(sText);
this.setProperty("text", sText);
return this;
};
Corrected Index.html
<!DOCTYPE html >
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta charset="utf-8">
<title>Component Test</title>
<script
id="sap-ui-bootstrap"
src="https://openui5.hana.ondemand.com/resources/sap-ui-core.js"
data-sap-ui-theme="sap_bluecrystal"
data-sap-ui-libs="sap.m"
data-sap-ui-compatVersion="edge"
data-sap-ui-preload="async"
data-sap-ui-resourceroots='{
"my": "./"
}' >
</script>
<script>
sap.ui.getCore().attachInit(function () {
jQuery.sap.registerModulePath("my.components.button", "components/button");
var oComp1 = sap.ui.getCore().createComponent({
name: "my.components.button",
id: "Comp1",
settings: {text: "Hello World"}
});
// Create a Ui container
var oCompCont1 = new sap.ui.core.ComponentContainer("CompCont1", {
component: oComp1
})
// place this Ui Container with the Component inside into UI Area
oCompCont1.placeAt("target1");
var oCompCont2 = new sap.ui.core.ComponentContainer("CompCont2", {
name: "my.components.button",
settings: {text: "Hello World again"}
});
oCompCont2.placeAt("target2");
});
</script>
</head>
<body class="sapUiBody">
<div id="target1"></div>
<div id="target2"></div>
</body>
</html>
I wrote a code that will translate text from en-US to id-ID (Indonesian). Here button has got a text which reads as Click me if you are serious. After applying translation, it is getting translated as Klik saya jika anda serius successfully. If I click on that button, an alert message will be displayed like this: You have been alerted, code it down. I want that alert message to be translated to id-ID. Here is my code:
<!DOCTYPE html>
<html>
<head>
<title>Translation</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<button onclick="alertbox();" id="btn" >Click me if you are serious</button>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="i18next-1.10.1.min.js"></script>
<script>
function alertbox () {
alert("You have been alerted, code it down");
}
$.i18n.init({
lng: 'id-ID',
ns: {
namespaces: ['ns.common', 'ns.special'],
defaultNs: 'ns.special'
},
useLocalStorage: false,
debug: true
}, function(t) {
$('#btn').text($.t('app.btn', {
btn: ''
}))
});
</script>
</body>
</html>
id-ID (ns.special.json)
{
"app": {
"btn": "Klik saya jika anda serius"
}
}
en-US (ns.special.json)
{
"app": {
"btn": "Click me if you are serious"
}
}
How can I translate alert message into id-ID?
Where is your problem? You dont even try :) There is everything documented:
http://i18next.com/pages/doc_jquery.html
And you can find many examples with jquery. You can find even live examples on jsfiddle, like that:
$(document).ready(function () {
i18n.init({
"lng": 'en',
"resStore": resources,
"fallbackLng" : 'en'
}, function (t) {
$(document).i18n();
});
$('.lang').click(function () {
var lang = $(this).attr('data-lang');
i18n.init({
lng: lang
}, function (t) {
$(document).i18n();
});
});
});
http://jsfiddle.net/SalvadorDali/dLc7x/
Finish your code and edit your question, so we can help you. First declare i18n variables, then use $.t
My code:
<!DOCTYPE html>
<html>
<head>
<title>Translation</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="test.css">
</head>
<body>
<button id="btn">Click me if you are serious</button>
<div id="qwe"></div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="i18next-1.10.1.min.js"></script>
<script>
/*$("#btn").click(function() {
alert("You have been alerted, code it down!!!");
});*/
$.i18n.init({
lng: 'en-US',
ns: {
namespaces: ['ns.common', 'ns.special'],
defaultNs: 'ns.special'
},
useLocalStorage: false,
debug: true
}, function(t) {
var key = $('#qwe').text();
$('#btn').text($.t('app.btn', {
btn: ''
}))
$('#qwe').text($.t('app.alert', {
alert: ''
}))
});
$("#btn").click(function() {
alert($('#qwe').text());
});
</script>
</body>
</html>
CSS:
div {
display: none;
}
ns.special.json (en-US):
{
"app": {
"btn": "Click me if you are serious",
"alert": "You have been alerted, code it down!!!"
}
}
ns.special.json (id-ID):
{
"app": {
"btn": "Klik saya jika anda serius",
"alert": "Anda telah diperingatkan, kode itu turun!!!"
}
}
I have three nested polymer elements. Each of them has default values, which may be overridden with published value.
But i can't do it.
On create event does not exist published value. On ready event child element has already ready and not updated.
I made example js-bin.
In reality, each element in the separate file. It is example.
Object.assign - es6 method for merging objects (use es6-shim).
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS Bin</title>
<script src="//cdnjs.cloudflare.com/ajax/libs/es6-shim/0.18.0/es6-shim.js"></script>
<script src="http://www.polymer-project.org/components/platform/platform.js"></script>
<link href="http://www.polymer-project.org/components/polymer/polymer.html" rel="import">
</head>
<body unresolved>
<polymer-element name="my-field" attributes="ask">
<template>
<span><content></content> Message: {{message}}</span>
</template>
<script>
(function() {
Polymer('my-field', {
defaultAsk: { message: "Hello from Field!" },
created: function() {
console.log('created-field', this.ask, this.message);
Object.assign(this, this.defaultAsk);
},
ready: function() {
console.log('ready-field', this.ask, this.message);
Object.assign(this, this.ask);
}
});
})();
</script>
</polymer-element>
<polymer-element name="my-shelf" attributes="ask">
<template>
<my-field ask="{{field}}"><content></content></my-field>
</template>
<script>
(function() {
Polymer('my-shelf', {
defaultAsk: { field: { message: "Hello from Shelf!" } },
created: function() {
console.log('created-shelf', this.ask, this.field);
Object.assign(this, this.defaultAsk);
},
ready: function() {
console.log('ready-shelf', this.ask, this.field);
Object.assign(this, this.ask);
}
});
})();
</script>
</polymer-element>
<polymer-element name="my-cabinet">
<template>
<my-shelf ask="{{shelf}}"><content></content></my-shelf>
</template>
<script>
(function() {
Polymer('my-cabinet', {
ask: { shelf: { field: { message: "Hello from outside!" } } },
defaultAsk: { shelf: { field: { message: "Hello from Cabinet!" } } },
created: function() {
console.log('created-cabinet', this.ask, this.shelf);
Object.assign(this, this.defaultAsk);
},
ready: function() {
console.log('ready-cabinet', this.ask, this.shelf);
Object.assign(this, this.ask);
}
});
})();
</script>
</polymer-element>
<my-cabinet>Yo!</my-cabinet>
</body>
</html>
All will working as I want, if use only one object through many nested elements.
Example on js-bin
All my element extended of other one (my-elem) only for remove doubled code and make my example more readable. ask - binding data (from my-cabinet to my-field). Click - changing data.
Unfortunately, on jsbin wery uneasy console for view fired messages.
I made small schema of chain events with nested elements. Maybe, it will help someone.
p.s. Don't kick me for my bad english.
I try to display images from an url at a page. But it wont display. I dont know what wrong but I need help from someone.
This is html code. Index.html
<html><head>
<title>Hello World</title>
<style>
.hello {
background:#000000;
background-image:url(http://24.media.tumblr.com/tumblr_l4l2wdQYkw1qayuxao1_500.png);
}
.world {
background:#ffffff;
background-image:url(http://37.media.tumblr.com/tumblr_l41spq8tIq1qz7ywoo1_500.png);
background-repeat:no-repeat;
}
</style>
<script type="text/javascript" src="touch/sencha-touch.js"></script>
<link href="touch/resources/css/sencha-touch.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="app.js"></script>
<script id="microloader" type="text/javascript" src=".sencha/app/microloader/development.js"></script>
This is the code for app.js
requires: [
'Ext.MessageBox'
],
views: [
'Main'
],
icon: {
'57': 'resources/icons/Icon.png',
'72': 'resources/icons/Icon~ipad.png',
'114': 'resources/icons/Icon#2x.png',
'144': 'resources/icons/Icon~ipad#2x.png'
},
isIconPrecomposed: true,
startupImage: {
'320x460': 'resources/startup/320x460.jpg',
'640x920': 'resources/startup/640x920.png',
'768x1004': 'resources/startup/768x1004.png',
'748x1024': 'resources/startup/748x1024.png',
'1536x2008': 'resources/startup/1536x2008.png',
'1496x2048': 'resources/startup/1496x2048.png'
},
launch: function() {
this.tabs = new Ext.TabPanel({
fullscreen: true,
tabBar: {
ui: 'light',
layout: {
pack:'center'
}
},
items: [
{docked:'top', xtype:'toolbar', title:'Hello World'},
{cls:'hello', title:'Hello'},
{cls:'world', title:'World'}
]
});
}
Above is a code that make from this tutorial http://www.sencha.com/learn/taking-sencha-touch-apps-offline/
can any one help me solve this problem. Thank you.
At the bottom of the launch function, add the tabpanel to the viewport. You have created the tabpanel, but it is merely an object in memory at this point. It is not rendered anywhere.
launch: function () {
...
Ext.Viewport.add(this.tabs);
}
Using HighChart, I am trying to add a data series, but it doesn't seem to work.
I am getting an error.
"Uncaught TypeError: Cannot call method 'addSeries' of undefined"
<!DOCTYPE HTML>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script src="http://code.highcharts.com/highcharts.js" type="text/javascript"></script>
<script type="text/javascript">
var chart;
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'target_div'
},
series: [{
name: 'Existing',
data: [0,0,0]
}]
});
});
chart.addSeries(
{
name: 'Test',
data: [1,2,3]
}
)
</script>
</head>
<body>
<div id='target_div'>
</body>
</html>
Is there something obvious that I am missing?
This worked!
$(chart).ready(function() {
chart.addSeries(
{
name: 'test',
data: [1,2,3]
}
)
});
You have to add chart.addSeries inside $(document).ready.
When it's getting executed chart isn't an instance of Highcharts.
Demo