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@polymer/iron-resizable-behavior
Advanced tools
IronResizableBehavior
is a behavior that can be used in Polymer elements to
coordinate the flow of resize events between "resizers" (elements that control the
size or hidden state of their children) and "resizables" (elements that need to be
notified when they are resized or un-hidden by their parents in order to take
action on their new measurements).
Elements that perform measurement should add the IronResizableBehavior
behavior to
their element definition and listen for the iron-resize
event on themselves.
This event will be fired when they become showing after having been hidden,
when they are resized explicitly by another resizable, or when the window has been
resized.
Note, the iron-resize
event is non-bubbling.
See: Documentation, Demo.
npm install --save @polymer/iron-resizable-behavior
import {PolymerElement, html} from '@polymer/polymer';
import {mixinBehaviors} from '@polymer/polymer/lib/legacy/class.js';
import {IronResizableBehavior} from '@polymer/iron-resizable-behavior/iron-resizable-behavior.js';
class SampleElement extends mixinBehaviors([IronResizableBehavior], PolymerElement) {
static get template() {
return html`
<style>
:host {
display: block;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
}
</style>
<span>width: [[width]] </span>
<span>height: [[height]]</span>
`;
}
static get properties() {
return {
width: Number,
height: Number,
}
}
connectedCallback() {
super.connectedCallback();
this.addEventListener('iron-resize', this.onIronResize.bind(this));
}
onIronResize() {
this.width = this.offsetWidth;
this.height = this.offsetHeight;
}
}
customElements.define('sample-element', SampleElement);
If you want to send a PR to this element, here are the instructions for running the tests and demo locally:
git clone https://github.com/PolymerElements/iron-resizable-behavior
cd iron-resizable-behavior
npm install
npm install -g polymer-cli
polymer serve --npm
open http://127.0.0.1:<port>/demo/
polymer test --npm
FAQs
Coordinates the flow of resizeable elements
The npm package @polymer/iron-resizable-behavior receives a total of 22,958 weekly downloads. As such, @polymer/iron-resizable-behavior popularity was classified as popular.
We found that @polymer/iron-resizable-behavior demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 11 open source maintainers collaborating on the project.
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