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// @flow
import * as React from "react";
import _ from "lodash";
import Responsive from '../../lib/ResponsiveReactGridLayout';
import WidthProvider from '../../lib/components/WidthProvider';
import type {CompactType, Layout, LayoutItem, ReactChildren} from '../../lib/utils';
import type {Breakpoint, OnLayoutChangeCallback} from '../../lib/responsiveUtils';
const ResponsiveReactGridLayout = WidthProvider(Responsive);
type Props = {|
className: string,
cols: {[string]: number},
onLayoutChange: Function,
rowHeight: number,
|};
type State = {|
currentBreakpoint: string,
compactType: CompactType,
mounted: boolean,
resizeHandles: string[],
layouts: {[string]: Layout}
|};
const availableHandles = ["s", "w", "e", "n", "sw", "nw", "se", "ne"];
export default class ShowcaseLayout extends React.Component<Props, State> {
static defaultProps: Props = {
className: "layout",
rowHeight: 30,
onLayoutChange: function() {},
cols: { lg: 12, md: 10, sm: 6, xs: 4, xxs: 2 },
};
state: State = {
currentBreakpoint: "lg",
compactType: "vertical",
resizeHandles: ['se'],
mounted: false,
layouts: { lg: generateLayout(['se']) }
};
componentDidMount() {
this.setState({ mounted: true });
}
generateDOM(): ReactChildren {
return _.map(this.state.layouts.lg, function(l, i) {
return (
<div key={i} className={l.static ? "static" : ""}>
{l.static ? (
<span
className="text"
title="This item is static and cannot be removed or resized."
>
Static - {i}
</span>
) : (
<span className="text">{i}</span>
)}
</div>
);
});
}
onBreakpointChange: (Breakpoint) => void = (breakpoint) => {
this.setState({
currentBreakpoint: breakpoint
});
};
onCompactTypeChange: () => void = () => {
const { compactType: oldCompactType } = this.state;
const compactType =
oldCompactType === "horizontal"
? "vertical"
: oldCompactType === "vertical"
? null
: "horizontal";
this.setState({ compactType });
};
onResizeTypeChange: () => void = () => {
const resizeHandles = this.state.resizeHandles === availableHandles ? ['se'] : availableHandles;
this.setState({resizeHandles, layouts: {lg: generateLayout(resizeHandles)}});
};
onLayoutChange: OnLayoutChangeCallback = (layout, layouts) => {
this.props.onLayoutChange(layout, layouts);
};
onNewLayout: EventHandler = () => {
this.setState({
layouts: { lg: generateLayout(this.state.resizeHandles) }
});
};
onDrop: (layout: Layout, item: ?LayoutItem, e: Event) => void = (elemParams) => {
alert(`Element parameters: ${JSON.stringify(elemParams)}`);
};
render(): React.Node {
// eslint-disable-next-line no-unused-vars
return (
<div>
<div>
Current Breakpoint: {this.state.currentBreakpoint} (
{this.props.cols[this.state.currentBreakpoint]} columns)
</div>
<div>
Compaction type:{" "}
{_.capitalize(this.state.compactType) || "No Compaction"}
</div>
<button onClick={this.onNewLayout}>Generate New Layout</button>
<button onClick={this.onCompactTypeChange}>
Change Compaction Type
</button>
<button onClick={this.onResizeTypeChange}>
Resize {this.state.resizeHandles === availableHandles ? "One Corner" : "All Corners"}
</button>
<ResponsiveReactGridLayout
{...this.props}
layouts={this.state.layouts}
onBreakpointChange={this.onBreakpointChange}
onLayoutChange={this.onLayoutChange}
onDrop={this.onDrop}
// WidthProvider option
measureBeforeMount={false}
// I like to have it animate on mount. If you don't, delete `useCSSTransforms` (it's default `true`)
// and set `measureBeforeMount={true}`.
useCSSTransforms={this.state.mounted}
compactType={this.state.compactType}
preventCollision={!this.state.compactType}
>
{this.generateDOM()}
</ResponsiveReactGridLayout>
</div>
);
}
}
function generateLayout(resizeHandles) {
return _.map(_.range(0, 25), function(item, i) {
var y = Math.ceil(Math.random() * 4) + 1;
return {
x: Math.round(Math.random() * 5) * 2,
y: Math.floor(i / 6) * y,
w: 2,
h: y,
i: i.toString(),
static: Math.random() < 0.05,
resizeHandles
};
});
}
if (process.env.STATIC_EXAMPLES === true) {
import("../test-hook.jsx").then(fn => fn.default(ShowcaseLayout));
}
|