I would like to initialize an element whenever it is rendered using iron pages.
In the jsbin do the below operation
Click 'Toggle'
Click 'Toggle step'
Click 'Toggle'
Click 'Toggle' again
I expect to see 'step a'. As the x-example assigns 'step="a"'. However I see 'step b'. Is there any way to show 'step a' whenever y-example is shown?
jsbin: http://jsbin.com/regapemoqe/1/edit?html,output
Code:
<meta charset="utf-8">
<base href="http://polymer-magic-server.appspot.com/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link href="polymer/polymer.html" rel="import">
<link href="iron-pages/iron-pages.html" rel="import">
<style>
body {
font-family: sans-serif;
}
</style>
</head>
<body>
<x-example></x-example>
<dom-module id="x-example">
<style>
:host {
display: block;
}
</style>
<template>
<button on-click="toggleSelection">Toggle</button>
<iron-pages
attr-for-selected="data-route"
selected=[[selected]]>
<section data-route="one">
<p>This is the one</p>
</section>
<section data-route="two">
<p>This is the other one</p>
<y-example
step="a"></y-example>
</section>
</iron-pages>
</template>
<script>
// only need this when both (1) in the main document and (2) on non-Chrome browsers
addEventListener('WebComponentsReady', function() {
Polymer({
is: "x-example",
properties: {
selected: {
type: String,
value: 'one'
}
},
toggleSelection: function() {
this.selected = (this.selected == 'one')?'two':'one';
}
});
});
</script>
</dom-module>
<dom-module id="y-example">
<style>
:host {
display: block;
}
</style>
<template>
<iron-pages
attr-for-selected="data-step"
selected="[[step]]">
<section data-step="a"><p>This is step a</p></section>
<section data-step="b"><p>This is step b</p></section>
</iron-pages>
<button on-click="toggleStep">Toggle step</button>
</template>
<script>
addEventListener('WebComponentsReady', function() {
Polymer({
is: "y-example",
properties: {
step: {
type: String,
value: 'a'
}
},
toggleStep: function() {
this.step = (this.step == 'a')?'b':'a'
}
});
});
</script>
</dom-module>
</body>
You could do something like this in your toggleSelection function of your x-example element:
toggleSelection: function() {
this.$$('y-example').step='a';
this.selected = (this.selected == 'one')?'two':'one';
}
See here: http://jsbin.com/tewaqa/edit?html,output
Related
Can anyone show using jsBin an example of how to use app-route?
https://jsbin.com/retokid/edit?html,output
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=yes">
<title>Polymer</title>
<script src="https://polygit.org/app-route+polymerelements+*/components/webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/polymer/polymer.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/paper-input/paper-input.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/paper-button/paper-button.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/app-route/app-route.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/app-route/app-location.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/iron-pages/iron-pages.html">
</head>
<body>
<x-shell></x-shell>
<dom-module id="x-a">
<template>
<h2>page A</h2>
<paper-input value="{{email}}" placeholder="set email"></paper-input>
<paper-input value="{{phone}}" placeholder="set phone"></paper-input>
<paper-button on-click="_submit">submit</paper-button>
</template>
<script>
// NOTE: not needed if we declare this element in a separate file and import it.
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-a',
properties: {
email: {
type: String
}
},
_submit: function() {
this.fire('info-updated', {
email: this.email,
phone: this.phone
});
}
});
});
</script>
</dom-module>
<dom-module id="x-b">
<template>
<h2>page B</h2>
<div>
email: [[userInfo.email]]
</div>
</template>
<script>
// NOTE: not needed if we declare this element in a separate file and import it.
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-b',
properties: {
email: {
type: String
}
}
});
});
</script>
</dom-module>
<dom-module id="x-shell">
<template>
<app-location route="{{route}}" use-hash-as-path></app-location>
<app-route
route="{{route}}"
pattern="/:page"
data="{{routeData}}"
tail="{{subroute}}"></app-route>
<iron-selector selected="{{routeData.page}}" attr-for-selected="name" role="navigation">
<a name="x-a" href="#/x-a">x-a</a>
<a name="x-b" href="#/x-b">x-b</a>
</iron-selector>
<iron-pages selected="[[routeData.page]]" attr-for-selected="name">
<x-a name="x-a" route="{{route}}" user-info="[[userInfo]]" on-info-updated="_updateInfo"></x-a>
<x-b name="x-b" route="{{route}}" user-info="[[userInfo]]"></x-b>
</iron-pages>
</template>
<script>
// NOTE: not needed if we declare this element in a separate file and import it.
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-shell',
properties: {
userInfo: {
type: Object,
value: function() {
return {};
}
},
page: {
type: String,
reflectToAttribute: true
}
},
_updateInfo: function(event) {
console.log('infoUpdated', event.detail);
this.set('userInfo', event.detail);
}
});
});
</script>
</dom-module>
</body>
</html>
This is your worked example, check it please.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=yes">
<title>Polymer</title>
<script src="https://polygit.org/app-route+polymerelements+*/components/webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/polymer/polymer.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/paper-input/paper-input.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/paper-button/paper-button.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/app-route/app-route.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/app-route/app-location.html">
<link rel="import" href="https://polygit.org/app-route+polymerelements+*/components/iron-pages/iron-pages.html">
</head>
<body>
<x-shell></x-shell>
<dom-module is="x-a">
<template>
<h2>page A</h2>
<paper-input value="{{email}}" placeholder="set email"></paper-input>
<paper-input value="{{phone}}" placeholder="set phone"></paper-input>
<paper-button on-tap="_submit">submit</paper-button>
</template>
<script>
// NOTE: not needed if we declare this element in a separate file and import it.
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-a',
properties: {
email: {
type: String
}
},
_submit: function() {
this.fire('info-updated', {
email: this.email,
phone: this.phone
});
}
});
});
</script>
</dom-module>
<dom-module is="x-b">
<template>
<h2>page B</h2>
<div>
email: [[userInfo.email]]
</div>
</template>
<script>
// NOTE: not needed if we declare this element in a separate file and import it.
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-b',
properties: {
userInfo: {
type: Object
}
}
});
});
</script>
</dom-module>
<dom-module is="x-shell">
<template>
<app-location route="{{route}}" use-hash-as-path></app-location>
<app-route
route="{{route}}"
pattern="/:page"
data="{{routeData}}"
tail="{{subroute}}"></app-route>
<iron-selector selected="{{routeData.page}}" attr-for-selected="name" role="navigation">
<a name="x-a" href="#/x-a">x-a</a>
<a name="x-b" href="#/x-b">x-b</a>
</iron-selector>
<iron-pages selected="[[routeData.page]]" attr-for-selected="name">
<x-a name="x-a" route="{{route}}" user-info="[[userInfo]]" on-info-updated="_updateInfo"></x-a>
<x-b name="x-b" route="{{route}}" user-info="[[userInfo]]"></x-b>
</iron-pages>
</template>
<script>
// NOTE: not needed if we declare this element in a separate file and import it.
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-shell',
properties: {
userInfo: {
type: Object,
value: function() {
return {};
}
},
page: {
type: String,
reflectToAttribute: true
}
},
_updateInfo: function(event) {
console.log('infoUpdated', event.detail);
this.set('userInfo', event.detail);
}
});
});
</script>
</dom-module>
</body>
</html>
What is the best way to grab a hold of the element paper-ripple to attach a event listener for the animation end event? This element will be in a dom repeat. I tried getting children from Polymer.dom(event).localTarget; but had no success. The on-tap needs to stay in the parent.
<div on-tap="goToSingleListing" data-listingID="[[url.listing_id]]">
<paper-ripple></paper-ripple>
...
goToSingleListing: function(event) {
var el = Polymer.dom(event).localTarget;
var firstChildElementName = Polymer.dom(el).firstChild;
...
firstChildElementName.addEventListener('transitionend', ()=> {
page(url);
});
Instead of trying to get a reference to the <paper-ripple> from your tap event handler, you could use an annotated event listener directly on the <paper-ripple> for its transitionend event.
// dom-module template
<template is="dom-repeat" items="[[items]]">
<div on-tap="...">
<paper-ripple on-transitionend="_onItemTransitionEnd"></paper-ripple>
</div>
</template>
// dom-module script
Polymer({
...
_onItemTransitionEnd: function(e) {
...
}
}
HTMLImports.whenReady(() => {
Polymer({
is: 'x-foo',
_onItemTap: function(e) {
console.log('tap', e.model.index);
},
_onItemTransitionEnd: function(e) {
console.log('transitionend', e.model.index);
}
});
});
<head>
<base href="https://polygit.org/polymer+1.7.1/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link rel="import" href="polymer/polymer.html">
<link rel="import" href="paper-ripple/paper-ripple.html">
</head>
<body>
<x-foo></x-foo>
<dom-module id="x-foo">
<template>
<template is="dom-repeat" items="[1,2,3,4]">
<div on-tap="_onItemTap">
<h2>Item [[item]]</h2>
<paper-ripple on-transitionend="_onItemTransitionEnd"></paper-ripple>
</div>
</template>
</template>
</dom-module>
</body>
codepen
Here is my jsBin.
I want to access by its id a DOM node inside a dom-if template. With my existing code, I expect to see true when attempting to cast these nodes to Booleans, but instead I get false (i.e., undefined).
Steps to recreate the problem:
Open this jsBin.
Understand that the HTML pane on the right is working correctly by showing Foo and Bar and not showing Baz.
Observe the console and understand the id="foo" node is accessible but the id="bar" and id="baz" elements are not. And this is my problem.
How can I access those nodes imperatively?
http://jsbin.com/kemoravote/1/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">
<link href="iron-form/iron-form.html" rel="import">
</head>
<body>
<dom-module id="x-element">
<template>
<style></style>
<div id="foo">Foo</div>
<template is="dom-if" if="{{show}}">
<div id="bar">Bar</div>
</template>
<template is="dom-if" if="{{!show}}">
<div id="baz">Baz</div>
</template>
</template>
<script>
(function(){
Polymer({
is: "x-element",
properties: {
show: {
type: Boolean,
value: function() {
return true;
}
}
},
attached: function() {
console.log('foo', !!this.$.foo);
console.log('bar', !!this.$.bar);
console.log('baz', !!this.$.baz);
},
});
})();
</script>
</dom-module>
<x-element></x-element>
</body>
The $ selector won't work. You have to use $$ as follows:
console.log('baz', !!this.$$('#baz'));
Here is the jsBin.
http://jsbin.com/xogediyato/1/edit?html,console,output
<!doctype html>
<head>
<meta charset="utf-8">
<base href="https://polygit.org/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link href="polymer/polymer.html" rel="import">
<link href="iron-form/iron-form.html" rel="import">
</head>
<body>
<dom-module id="x-element">
<template>
<style></style>
<div id="foo">Foo</div>
<template is="dom-if" if="{{show}}">
<div id="bar">Bar</div>
</template>
<template is="dom-if" if="{{!show}}">
<div id="baz">Baz</div>
</template>
</template>
<script>
(function(){
Polymer({
is: "x-element",
properties: {
show: {
type: Boolean,
value: function() {
return true;
}
}
},
attached: function() {
console.log('foo', !!this.$.foo);
console.log('bar', !!this.$.bar);
console.log('baz', !!this.$.baz);
console.log('bar', !!this.$$('#bar'));
console.log('baz', !!this.$$('#baz'));
},
});
})();
</script>
</dom-module>
<x-element></x-element>
</body>
I am using Polymer to create a web component. I want to select the div gutter when the ::host element gets the class full
<link rel="import" href="/polymer/polymer.html">
<dom-module id="smooth-header">
<style>
.full ::content gutter {
color: red;
}
</style>
<template>
<content>
<div class="gutter"></div>
</content>
</template>
<script>....</script>
</dom-module>
But I am not able to select the gutter element with the above selector.
Why should the above selector fail?
Help with an alternative to select it correctly.
You should use :host(selector) to select a class on the host element:
:host(.fill) .gutter {
color: red;
}
<head>
<base href="https://polygit.org/polymer+1.5.0/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link rel="import" href="polymer/polymer.html">
</head>
<body>
<x-foo></x-foo>
<x-foo class="full"></x-foo>
<dom-module id="x-foo">
<style>
:host(.full) .gutter {
color: red;
}
</style>
<template>
<content>
<div class="gutter">
<span>{{foo}}</span>
</div>
</content>
</template>
<script>
HTMLImports.whenReady(function() {
Polymer({
is: 'x-foo',
properties : {
foo: {
type: String,
value: "Hello world!"
}
}
});
});
</script>
</dom-module>
</body>
codepen
I'm having trouble trying to fire an event from a child element to its parent on Polymer 1.0, and I can't see what am I doing wrong.
EDITED: Add more code
Child's code:
<link rel="import" href="../components/polymer/polymer.html" />
<link rel="import" href="../components/iron-input/iron-input.html" />
<link rel="import" href="../components/iron-icon/iron-icon.html" />
<link rel="import" href="../components/paper-input/paper-input container.html" />
<link rel="import" href="../components/paper-input/paper-input-error.html" />
<link rel="import" href="../components/iron-input/iron-input.html" />
<link rel="import" href="custom-table.html" />
<dom-module id="master-admin">
<style is="custom-style">
[...]
</style>
<template>
<custom-table selectable collist="{{columns}}" data="{{data}}">
</custom-table>
<div id="newrow" class="horizontal layout" hidden>
<template is="dom-repeat" items="{{columns}}" as="col">
<paper-input-container class="container flex">
<label class="label">{{col.name}}</label>
<input class="input" id="input" is="iron-input">
</paper-input-container>
</template>
</div>
<div id="iconsdiv" class="horizontal layout">
<iron-icon id="adicon" icon="add-circle" on-click="addrow"></iron-icon>
<div class="flex"></div>
<iron-icon id="delicon" icon="cancel" on-click="delrow"></iron-icon>
<iron-icon id="edicon" icon="create" on-click="editrow"></iron-icon>
</div>
</template>
<script>
Polymer({
is: 'master-admin',
properties: {
doctype: String,
columns: Array,
data: Array
},
datachanged: function () {
debugger;
var updatedata = {
data: this.data,
doctype: this.doctype
};
this.fire('data-updated', updatedata);
},
addrow: function (e) {
[...]
this.datachanged();
},
delrow: function (e) {
[...]
this.datachanged();
},
editrow: function (e) {
[...]
this.datachanged();
}
});
</script>
</dom-module>
On parent:
<master-admin
doctype="{{master.DocumentalTypeId}}"
columns="{{master.Columns}}"
data="{{master.Data}}"
on-data-updated="masterupdated">
</master-admin>
masterupdated: function () {
alert('updated master!');
}
Just to be clear, datachanged works just fine and it's called when it should. masterupdated on the parent does not.
The alert is never firing, nor the code gives any error. I guess is just something with Polymer 1.0 that works different.
The basic setup you describe does work, there must be a problem in the details somewhere. Here is an example:
<!doctype html>
<head>
<meta charset="utf-8">
<base href="http://milestech.net/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link href="polymer/polymer.html" rel="import">
<style>
body {
font-family: sans-serif;
}
</style>
</head>
<body>
<x-parent></x-parent>
<hr>
<dom-module id="master-admin">
<template>
<button on-tap="updateData">Update Data</button>
</template>
<script>
// only need this when both (1) in the main document and (2) on non-Chrome browsers
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'master-admin',
updateData: function() {
this.fire('data-updated');
}
});
});
</script>
</dom-module>
<dom-module id="x-parent">
<style>
</style>
<template>
<master-admin on-data-updated="masterupdated"></master-admin>
</template>
<script>
// only need this when both (1) in the main document and (2) on non-Chrome browsers
addEventListener('WebComponentsReady', function() {
Polymer({
is: 'x-parent',
masterupdated: function() {
document.body.appendChild(this.create('h3', {textContent: 'data-updated!'}));
}
});
});
</script>
</dom-module>
</body>
Can you try this?
<template is="dom-bind" id="t">
<master-admin
doctype="{{master.DocumentalTypeId}}"
columns="{{master.Columns}}"
data="{{master.Data}}"
on-data-updated="masterupdated">
</master-admin>
</template>
<script>
var template = document.querySelector('#t');
template.masterupdated= function () {
consloe.log("MASTER UPDATED!!");
};
</script>