lbry-desktop/ui/component/fileRenderFloating/view.jsx

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// @flow
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import * as ICONS from 'constants/icons';
import * as RENDER_MODES from 'constants/file_render_modes';
import React, { useEffect, useState } from 'react';
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import Button from 'component/button';
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import classnames from 'classnames';
import LoadingScreen from 'component/common/loading-screen';
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import FileRender from 'component/fileRender';
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import UriIndicator from 'component/uriIndicator';
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import usePersistedState from 'effects/use-persisted-state';
import { FILE_WRAPPER_CLASS } from 'page/file/view';
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import Draggable from 'react-draggable';
import Tooltip from 'component/common/tooltip';
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import { onFullscreenChange } from 'util/full-screen';
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import { useIsMobile } from 'effects/use-screensize';
import debounce from 'util/debounce';
const DEBOUNCE_WINDOW_RESIZE_HANDLER_MS = 60;
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type Props = {
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isFloating: boolean,
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fileInfo: FileListItem,
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uri: string,
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streamingUrl?: string,
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title: ?string,
floatingPlayerEnabled: boolean,
closeFloatingPlayer: () => void,
renderMode: string,
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};
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export default function FileRenderFloating(props: Props) {
const {
fileInfo,
uri,
streamingUrl,
title,
isFloating,
closeFloatingPlayer,
floatingPlayerEnabled,
renderMode,
} = props;
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const isMobile = useIsMobile();
const [fileViewerRect, setFileViewerRect] = useState();
const [desktopPlayStartTime, setDesktopPlayStartTime] = useState();
const [wasDragging, setWasDragging] = useState(false);
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const [position, setPosition] = usePersistedState('floating-file-viewer:position', {
x: -25,
y: window.innerHeight - 400,
});
const [relativePos, setRelativePos] = useState({ x: 0, y: 0 });
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const isPlayable = RENDER_MODES.FLOATING_MODES.includes(renderMode);
const isReadyToPlay = isPlayable && (streamingUrl || (fileInfo && fileInfo.completed));
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const loadingMessage =
fileInfo && fileInfo.blobs_completed >= 1 && (!fileInfo.download_path || !fileInfo.written_bytes)
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? __("It looks like you deleted or moved this file. We're rebuilding it now. It will only take a few seconds.")
: __('Loading');
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function getScreenWidth() {
if (document && document.documentElement) {
return document.documentElement.clientWidth;
} else {
return window.innerWidth;
}
}
function getScreenHeight() {
if (document && document.documentElement) {
return document.documentElement.clientHeight;
} else {
return window.innerHeight;
}
}
function clampToScreen(pos) {
const GAP_PX = 10;
const ESTIMATED_SCROLL_BAR_PX = 50;
const FLOATING_PLAYER_CLASS = 'content__viewer--floating';
const fpPlayerElem = document.querySelector(`.${FLOATING_PLAYER_CLASS}`);
if (fpPlayerElem) {
if (pos.x + fpPlayerElem.getBoundingClientRect().width > getScreenWidth() - ESTIMATED_SCROLL_BAR_PX) {
pos.x = getScreenWidth() - fpPlayerElem.getBoundingClientRect().width - ESTIMATED_SCROLL_BAR_PX - GAP_PX;
}
if (pos.y + fpPlayerElem.getBoundingClientRect().height > getScreenHeight()) {
pos.y = getScreenHeight() - fpPlayerElem.getBoundingClientRect().height - GAP_PX * 2;
}
}
}
// Updated 'relativePos' based on persisted 'position':
useEffect(() => {
setRelativePos({
x: position.x / getScreenWidth(),
y: position.y / getScreenHeight(),
});
}, []);
// Ensure player is within screen when 'isFloating' changes.
useEffect(() => {
if (isFloating) {
let pos = { x: position.x, y: position.y };
clampToScreen(pos);
if (pos.x !== position.x || pos.y !== position.y) {
setPosition({ x: pos.x, y: pos.y });
}
}
}, [isFloating]);
// Listen to main-window resizing and adjust the fp position accordingly:
useEffect(() => {
const handleMainWindowResize = debounce(e => {
let newPos = {
x: Math.round(relativePos.x * getScreenWidth()),
y: Math.round(relativePos.y * getScreenHeight()),
};
clampToScreen(newPos);
setPosition({ x: newPos.x, y: newPos.y });
}, DEBOUNCE_WINDOW_RESIZE_HANDLER_MS);
window.addEventListener('resize', handleMainWindowResize);
return () => window.removeEventListener('resize', handleMainWindowResize);
// 'relativePos' is needed in the dependency list to avoid stale closure.
// Otherwise, this could just be changed to a one-time effect.
}, [relativePos]);
// Update 'fileViewerRect':
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useEffect(() => {
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function handleResize() {
const element = document.querySelector(`.${FILE_WRAPPER_CLASS}`);
if (!element) {
return;
}
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const rect = element.getBoundingClientRect();
// $FlowFixMe
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setFileViewerRect(rect);
}
handleResize();
window.addEventListener('resize', handleResize);
onFullscreenChange(window, 'add', handleResize);
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return () => {
window.removeEventListener('resize', handleResize);
onFullscreenChange(window, 'remove', handleResize);
};
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}, [setFileViewerRect, isFloating]);
useEffect(() => {
// @if TARGET='app'
setDesktopPlayStartTime(Date.now());
// @endif
return () => {
// @if TARGET='app'
setDesktopPlayStartTime(undefined);
// @endif
};
}, [uri]);
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if (!isPlayable || !uri || (isFloating && (isMobile || !floatingPlayerEnabled))) {
return null;
}
function handleDragStart(e, ui) {
// Not really necessary, but reset just in case 'handleStop' didn't fire.
setWasDragging(false);
}
function handleDragMove(e, ui) {
setWasDragging(true);
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const { x, y } = position;
const newX = x + ui.deltaX;
const newY = y + ui.deltaY;
setPosition({
x: newX,
y: newY,
});
}
function handleDragStop(e, ui) {
if (wasDragging) {
e.stopPropagation();
setWasDragging(false);
setRelativePos({
x: position.x / getScreenWidth(),
y: position.y / getScreenHeight(),
});
}
}
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return (
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<Draggable
onDrag={handleDragMove}
onStart={handleDragStart}
onStop={handleDragStop}
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defaultPosition={position}
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position={isFloating ? position : { x: 0, y: 0 }}
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bounds="parent"
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disabled={!isFloating}
handle=".draggable"
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cancel=".button"
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>
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<div
className={classnames('content__viewer', {
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'content__viewer--floating': isFloating,
'content__viewer--inline': !isFloating,
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})}
style={
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!isFloating && fileViewerRect
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? { width: fileViewerRect.width, height: fileViewerRect.height, left: fileViewerRect.x }
: {}
}
>
<div
className={classnames('content__wrapper', {
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'content__wrapper--floating': isFloating,
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})}
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>
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{isFloating && (
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<Tooltip label={__('Close')}>
<Button
onClick={closeFloatingPlayer}
icon={ICONS.REMOVE}
button="primary"
className="content__floating-close"
/>
</Tooltip>
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)}
{isReadyToPlay ? (
<FileRender
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className="draggable"
uri={uri}
// @if TARGET='app'
desktopPlayStartTime={desktopPlayStartTime}
// @endif
/>
) : (
<LoadingScreen status={loadingMessage} />
)}
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{isFloating && (
<div className="draggable content__info">
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<div className="claim-preview__title" title={title || uri}>
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<Button label={title || uri} navigate={uri} button="link" className="content__floating-link" />
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</div>
<UriIndicator link addTooltip={false} uri={uri} />
</div>
)}
</div>
</div>
</Draggable>
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);
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}