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import { observable, computed, action } from "mobx"
import { observer } from "mobx-react"
import parseUrl from "url-parse"
import { TextWrap } from "../text/TextWrap"
import { Bounds, DEFAULT_BOUNDS } from "../../clientUtils/Bounds"
import { getRelativeMouse } from "../../clientUtils/Util"
import { Tooltip } from "../tooltip/Tooltip"
import { BASE_FONT_SIZE, GrapherTabOption } from "../core/GrapherConstants"
import { FooterManager } from "./FooterManager"
@observer
export class Footer extends React.Component<{
manager: FooterManager
maxWidth?: number
}> {
@computed private get maxWidth(): number {
return this.props.maxWidth ?? DEFAULT_BOUNDS.width
}
@computed private get manager(): FooterManager {
return this.props.manager
}
@computed private get sourcesText(): string {
const sourcesLine = this.manager.sourcesLine
return sourcesLine ? `Source: ${sourcesLine}` : ""
}
@computed private get noteText(): string {
return this.manager.note ? `Note: ${this.manager.note}` : ""
}
@computed private get ccSvg(): string {
if (this.manager.hasOWIDLogo)
return `<a style="fill: #777;" class="cclogo" href="http://creativecommons.org/licenses/by/4.0/deed.en_US" target="_blank">CC BY</a>`
return `<a href="https://ourworldindata.org" target="_blank">Powered by ourworldindata.org</a>`
}
@computed private get originUrlWithProtocol(): string {
return this.manager.originUrlWithProtocol ?? "http://localhost"
}
@computed private get finalUrl(): string {
const originUrl = this.originUrlWithProtocol
const url = parseUrl(originUrl)
return `https://${url.hostname}${url.pathname}`
}
@computed private get finalUrlText(): string | undefined {
const originUrl = this.originUrlWithProtocol
// Make sure the link back to OWID is consistent
// And don't show the full url if there isn't enough room
if (
!originUrl ||
!originUrl.toLowerCase().match(/^https?:\/\/./) ||
this.manager.shouldLinkToOwid
)
return undefined
const url = parseUrl(originUrl)
const finalUrlText = `${url.hostname}${url.pathname}`.replace(
"ourworldindata.org",
"OurWorldInData.org"
)
if (
Bounds.forText(finalUrlText, { fontSize: this.fontSize }).width >
0.7 * this.maxWidth
)
return undefined
return finalUrlText
}
@computed private get licenseSvg(): string {
const { finalUrl, finalUrlText, ccSvg } = this
if (!finalUrlText) return ccSvg
return `*data-entry* • ${ccSvg}`.replace(
/\*data-entry\*/,
"<a target='_blank' style='fill: #777;' href='" +
finalUrl +
"'>" +
finalUrlText +
"</a>"
)
}
@computed private get fontSize(): number {
return 0.7 * (this.manager.fontSize ?? BASE_FONT_SIZE)
}
@computed private get sources(): TextWrap {
const { maxWidth, fontSize, sourcesText } = this
return new TextWrap({
maxWidth,
fontSize,
text: sourcesText,
linkifyText: true,
})
}
@computed private get note(): TextWrap {
const { maxWidth, fontSize, noteText } = this
return new TextWrap({
maxWidth,
fontSize,
text: noteText,
linkifyText: true,
})
}
@computed private get license(): TextWrap {
const { maxWidth, fontSize, licenseSvg } = this
return new TextWrap({
maxWidth: maxWidth * 3,
fontSize,
text: licenseSvg,
rawHtml: true,
})
}
// Put the license stuff to the side if there's room
@computed private get isCompact(): boolean {
return this.maxWidth - this.sources.width - 5 > this.license.width
}
@computed private get paraMargin(): number {
return 2
}
@computed get height(): number {
if (this.manager.isMediaCard) return 0
const { sources, note, license, isCompact, paraMargin } = this
return (
sources.height +
(note.height ? paraMargin + note.height : 0) +
(isCompact ? 0 : paraMargin + license.height)
)
}
@action.bound private onSourcesClick(): void {
this.manager.currentTab = GrapherTabOption.sources
}
renderStatic(targetX: number, targetY: number): JSX.Element | null {
if (this.manager.isMediaCard) return null
const { sources, note, license, maxWidth, isCompact, paraMargin } = this
return (
<g className="SourcesFooter" style={{ fill: "#777" }}>
<g style={{ fill: "#777" }}>
{sources.render(targetX, targetY)}
</g>
{note.render(targetX, targetY + sources.height + paraMargin)}
{isCompact
? license.render(
targetX + maxWidth - license.width,
targetY
)
: license.render(
targetX,
targetY +
sources.height +
paraMargin +
(note.height ? note.height + paraMargin : 0)
)}
</g>
)
}
base: React.RefObject<HTMLDivElement> = React.createRef()
@observable.ref tooltipTarget?: { x: number; y: number }
@action.bound private onMouseMove(e: MouseEvent): void {
const cc = this.base.current!.querySelector(".cclogo")
if (cc && cc.matches(":hover")) {
const div = this.base.current as HTMLDivElement
const grapher = div.closest(".GrapherComponent")
if (grapher) {
const mouse = getRelativeMouse(grapher, e)
this.tooltipTarget = { x: mouse.x, y: mouse.y }
} else console.error("Grapher was falsy")
} else this.tooltipTarget = undefined
}
componentDidMount(): void {
window.addEventListener("mousemove", this.onMouseMove)
}
componentWillUnmount(): void {
window.removeEventListener("mousemove", this.onMouseMove)
}
render(): JSX.Element {
const { tooltipTarget } = this
const license = (
<div
className="license"
style={{
fontSize: this.license.fontSize,
lineHeight: this.sources.lineHeight,
}}
>
{this.finalUrlText && (
<a href={this.finalUrl} target="_blank" rel="noopener">
{this.finalUrlText} •{" "}
</a>
)}
{this.manager.hasOWIDLogo ? (
<a
className="cclogo"
href="http://creativecommons.org/licenses/by/4.0/deed.en_US"
target="_blank"
rel="noopener"
>
CC BY
</a>
) : (
<a
href="https://ourworldindata.org"
target="_blank"
rel="noopener"
>
Powered by ourworldindata.org
</a>
)}
</div>
)
return (
<footer
className={
"SourcesFooterHTML" + (this.isCompact ? " compact" : "")
}
ref={this.base}
style={{ color: "#777" }}
>
{this.isCompact && license}
<p
style={this.sources.htmlStyle}
className="clickable"
onClick={this.onSourcesClick}
>
{this.sources.renderHTML()}
</p>
{this.note && (
<p style={this.note.htmlStyle}>{this.note.renderHTML()}</p>
)}
{!this.isCompact && license}
{tooltipTarget && (
<Tooltip
tooltipManager={this.manager}
x={tooltipTarget.x}
y={tooltipTarget.y}
style={{
textAlign: "center",
maxWidth: "300px",
whiteSpace: "inherit",
padding: "10px",
fontSize: "0.8em",
}}
>
<p>
Our World in Data charts are licensed under Creative
Commons; you are free to use, share, and adapt this
material. Click through to the CC BY page for more
information. Please bear in mind that the underlying
source data for all our charts might be subject to
different license terms from third-party authors.
</p>
</Tooltip>
)}
</footer>
)
}
}
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