gristlabs_grist-core/app/client/ui/PagePanels.ts

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/**
* Note that it assumes the presence of cssVars.cssRootVars on <body>.
*/
import * as commands from 'app/client/components/commands';
import {urlState} from "app/client/models/gristUrlState";
import {resizeFlexVHandle} from 'app/client/ui/resizeHandle';
import {transition, TransitionWatcher} from 'app/client/ui/transitions';
import {colors, cssHideForNarrowScreen, mediaNotSmall, mediaSmall} from 'app/client/ui2018/cssVars';
import {isNarrowScreenObs} from 'app/client/ui2018/cssVars';
import {icon} from 'app/client/ui2018/icons';
import {dom, DomArg, noTestId, Observable, styled, subscribe, TestId} from "grainjs";
export interface PageSidePanel {
// Note that widths need to start out with a correct default in JS (having them in CSS is not
// enough), needed for open/close transitions.
panelWidth: Observable<number>;
panelOpen: Observable<boolean>;
hideOpener?: boolean; // If true, don't show the opener handle.
header: DomArg;
content: DomArg;
}
export interface PageContents {
leftPanel: PageSidePanel;
rightPanel?: PageSidePanel; // If omitted, the right panel isn't shown at all.
headerMain: DomArg;
contentMain: DomArg;
onResize?: () => void; // Callback for when either pane is opened, closed, or resized.
testId?: TestId;
contentTop?: DomArg;
contentBottom?: DomArg;
}
export function pagePanels(page: PageContents) {
const testId = page.testId || noTestId;
const left = page.leftPanel;
const right = page.rightPanel;
const onResize = page.onResize || (() => null);
let lastLeftOpen = left.panelOpen.get();
let lastRightOpen = right?.panelOpen.get() || false;
let leftPaneDom: HTMLElement;
// When switching to mobile mode, close panels; when switching to desktop, restore the
// last desktop state.
const sub1 = subscribe(isNarrowScreenObs(), (use, narrow) => {
if (narrow) {
lastLeftOpen = left.panelOpen.get();
lastRightOpen = right?.panelOpen.get() || false;
}
left.panelOpen.set(narrow ? false : lastLeftOpen);
right?.panelOpen.set(narrow ? false : lastRightOpen);
});
// When url changes, we must have navigated; close the left panel since if it were open, it was
// the likely cause of the navigation (e.g. switch to another page or workspace).
const sub2 = subscribe(isNarrowScreenObs(), urlState().state, (use, narrow, state) => {
if (narrow) {
left.panelOpen.set(false);
}
});
const commandsGroup = commands.createGroup({
leftPanelOpen: () => new Promise((resolve) => {
const watcher = new TransitionWatcher(leftPaneDom);
watcher.onDispose(() => resolve(undefined));
left.panelOpen.set(true);
}),
}, null, true);
return cssPageContainer(
dom.autoDispose(sub1),
dom.autoDispose(sub2),
dom.autoDispose(commandsGroup),
page.contentTop,
cssContentMain(
leftPaneDom = cssLeftPane(
testId('left-panel'),
cssTopHeader(left.header),
left.content,
dom.style('width', (use) => use(left.panelOpen) ? use(left.panelWidth) + 'px' : ''),
// Opening/closing the left pane, with transitions.
cssLeftPane.cls('-open', left.panelOpen),
transition(use => (use(isNarrowScreenObs()) ? false : use(left.panelOpen)), {
prepare(elem, open) { elem.style.marginRight = (open ? -1 : 1) * (left.panelWidth.get() - 48) + 'px'; },
run(elem, open) { elem.style.marginRight = ''; },
finish: onResize,
}),
),
// Resizer for the left pane.
// TODO: resizing to small size should collapse. possibly should allow expanding too
cssResizeFlexVHandle(
{target: 'left', onSave: (val) => { left.panelWidth.set(val); onResize(); }},
testId('left-resizer'),
dom.show(left.panelOpen),
cssHideForNarrowScreen.cls('')),
// Show plain border when the resize handle is hidden.
cssResizeDisabledBorder(
dom.hide(left.panelOpen),
cssHideForNarrowScreen.cls('')),
cssMainPane(
cssTopHeader(
testId('top-header'),
(left.hideOpener ? null :
cssPanelOpener('PanelRight', cssPanelOpener.cls('-open', left.panelOpen),
testId('left-opener'),
dom.on('click', () => toggleObs(left.panelOpen)),
cssHideForNarrowScreen.cls(''))
),
page.headerMain,
(!right || right.hideOpener ? null :
cssPanelOpener('PanelLeft', cssPanelOpener.cls('-open', right.panelOpen),
testId('right-opener'),
dom.cls('tour-creator-panel'),
dom.on('click', () => toggleObs(right.panelOpen)),
cssHideForNarrowScreen.cls(''))
),
),
page.contentMain,
testId('main-pane'),
),
(right ? [
// Resizer for the right pane.
cssResizeFlexVHandle(
{target: 'right', onSave: (val) => { right.panelWidth.set(val); onResize(); }},
testId('right-resizer'),
dom.show(right.panelOpen),
cssHideForNarrowScreen.cls('')),
cssRightPane(
testId('right-panel'),
cssTopHeader(right.header),
right.content,
dom.style('width', (use) => use(right.panelOpen) ? use(right.panelWidth) + 'px' : ''),
// Opening/closing the right pane, with transitions.
cssRightPane.cls('-open', right.panelOpen),
transition(use => (use(isNarrowScreenObs()) ? false : use(right.panelOpen)), {
prepare(elem, open) { elem.style.marginLeft = (open ? -1 : 1) * right.panelWidth.get() + 'px'; },
run(elem, open) { elem.style.marginLeft = ''; },
finish: onResize,
}),
)] : null
),
cssContentOverlay(
dom.show((use) => use(left.panelOpen) || Boolean(right && use(right.panelOpen))),
dom.on('click', () => {
left.panelOpen.set(false);
if (right) { right.panelOpen.set(false); }
}),
testId('overlay')
),
dom.maybe(isNarrowScreenObs(), () =>
cssBottomFooter(
testId('bottom-footer'),
cssPanelOpenerNarrowScreenBtn(
cssPanelOpenerNarrowScreen(
'FieldTextbox',
dom.on('click', () => {
right?.panelOpen.set(false);
toggleObs(left.panelOpen);
}),
testId('left-opener-ns')
),
cssPanelOpenerNarrowScreenBtn.cls('-open', left.panelOpen)
),
page.contentBottom,
(!right ? null :
cssPanelOpenerNarrowScreenBtn(
cssPanelOpenerNarrowScreen(
'Settings',
dom.on('click', () => {
left.panelOpen.set(false);
toggleObs(right.panelOpen);
}),
testId('right-opener-ns')
),
cssPanelOpenerNarrowScreenBtn.cls('-open', right.panelOpen),
)
),
)
),
),
);
}
function toggleObs(boolObs: Observable<boolean>) {
boolObs.set(!boolObs.get());
}
const bottomFooterHeightPx = 48;
const cssVBox = styled('div', `
display: flex;
flex-direction: column;
`);
const cssHBox = styled('div', `
display: flex;
`);
const cssPageContainer = styled(cssVBox, `
position: absolute;
isolation: isolate; /* Create a new stacking context */
z-index: 0; /* As of March 2019, isolation does not have Edge support, so force one with z-index */
top: 0;
left: 0;
right: 0;
bottom: 0;
min-width: 600px;
background-color: ${colors.lightGrey};
@media ${mediaSmall} {
& {
padding-bottom: ${bottomFooterHeightPx}px;
min-width: 240px;
}
.interface-light & {
padding-bottom: 0;
}
}
`);
const cssContentMain = styled(cssHBox, `
flex: 1 1 0px;
overflow: hidden;
`);
export const cssLeftPane = styled(cssVBox, `
position: relative;
background-color: ${colors.lightGrey};
width: 48px;
margin-right: 0px;
overflow: hidden;
transition: margin-right 0.4s;
@media ${mediaSmall} {
& {
width: 240px;
position: fixed;
z-index: 10;
top: 0;
bottom: ${bottomFooterHeightPx}px;
left: -${240 + 15}px; /* adds an extra 15 pixels to also hide the box shadow */
visibility: hidden;
box-shadow: 10px 0 5px rgba(0, 0, 0, 0.2);
transition: left 0.4s, visibility 0.4s;
will-change: left;
}
&-open {
left: 0;
visibility: visible;
}
}
&-open {
width: 240px;
min-width: 160px;
max-width: 320px;
}
@media print {
& {
display: none;
}
}
.interface-light & {
display: none;
}
`);
const cssMainPane = styled(cssVBox, `
position: relative;
flex: 1 1 0px;
min-width: 0px;
background-color: white;
z-index: 1;
`);
const cssRightPane = styled(cssVBox, `
position: relative;
background-color: ${colors.lightGrey};
width: 0px;
margin-left: 0px;
overflow: hidden;
transition: margin-left 0.4s;
z-index: 0;
@media ${mediaSmall} {
& {
width: 240px;
position: fixed;
z-index: 10;
top: 0;
bottom: ${bottomFooterHeightPx}px;
right: -${240 + 15}px; /* adds an extra 15 pixels to also hide the box shadow */
box-shadow: -10px 0 5px rgba(0, 0, 0, 0.2);
visibility: hidden;
transition: right 0.4s, visibility 0.4s;
will-change: right;
}
&-open {
right: 0;
visibility: visible;
}
}
&-open {
width: 240px;
min-width: 240px;
max-width: 320px;
}
@media print {
& {
display: none;
}
}
.interface-light & {
display: none;
}
`);
const cssTopHeader = styled('div', `
height: 48px;
flex: none;
display: flex;
align-items: center;
justify-content: space-between;
border-bottom: 1px solid ${colors.mediumGrey};
@media print {
& {
display: none;
}
}
.interface-light & {
display: none;
}
`);
const cssBottomFooter = styled ('div', `
height: ${bottomFooterHeightPx}px;
background-color: white;
z-index: 20;
display: flex;
flex-direction: row;
align-items: center;
justify-content: space-between;
padding: 8px 16px;
position: absolute;
bottom: 0;
left: 0;
right: 0;
border-top: 1px solid ${colors.mediumGrey};
@media ${mediaNotSmall} {
& {
display: none;
}
}
@media print {
& {
display: none;
}
}
.interface-light & {
display: none;
}
`);
const cssResizeFlexVHandle = styled(resizeFlexVHandle, `
--resize-handle-color: ${colors.mediumGrey};
--resize-handle-highlight: ${colors.lightGreen};
@media print {
& {
display: none;
}
}
`);
const cssResizeDisabledBorder = styled('div', `
flex: none;
width: 1px;
height: 100%;
background-color: ${colors.mediumGrey};
`);
const cssPanelOpener = styled(icon, `
flex: none;
width: 32px;
height: 32px;
padding: 8px 8px;
cursor: pointer;
-webkit-mask-size: 16px 16px;
background-color: ${colors.lightGreen};
transition: transform 0.4s;
&:hover { background-color: ${colors.darkGreen}; }
&-open { transform: rotateY(180deg); }
`);
const cssPanelOpenerNarrowScreenBtn = styled('div', `
width: 32px;
height: 32px;
--icon-color: ${colors.slate};
cursor: pointer;
border-radius: 4px;
&-open {
background-color: ${colors.lightGreen};
--icon-color: white;
}
`);
const cssPanelOpenerNarrowScreen = styled(icon, `
width: 24px;
height: 24px;
margin: 4px;
`);
const cssContentOverlay = styled('div', `
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
background-color: grey;
opacity: 0.5;
display: none;
z-index: 9;
@media ${mediaSmall} {
& {
display: unset;
}
}
`);