gristlabs_grist-core/app/client/ui2018/pages.ts

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import { isDesktop } from 'app/client/lib/browserInfo';
import { cssEditorInput } from "app/client/ui/HomeLeftPane";
import { itemHeader, itemHeaderWrapper, treeViewContainer } from "app/client/ui/TreeViewComponentCss";
import { colors } from "app/client/ui2018/cssVars";
import { icon } from "app/client/ui2018/icons";
import { menu, menuItem, menuText } from "app/client/ui2018/menus";
import { dom, domComputed, DomElementArg, makeTestId, observable, Observable, styled } from "grainjs";
import * as ko from "knockout";
const testId = makeTestId('test-docpage-');
// the actions a page can do
export interface PageActions {
onRename: (name: string) => Promise<void>|any;
onRemove: () => void;
onDuplicate: () => void;
isRemoveDisabled: () => boolean;
isReadonly: Observable<boolean>;
}
// to work with existing code we need to support both knockout and grainjs observable
type NameType = Observable<string>|ko.Observable<string>;
// build the dom for a document page entry. It shows an icon (for now the first letter of the name,
// but later we'll support user selected icon), the name and a dots menu containing a "Rename" and
// "Remove" entries. Clicking "Rename" turns the page name into an editable input, which then call
// the actions.onRename callback with the new name. Setting actions.onRemove to undefined disables
// the item in the menu.
export function buildPageDom(name: NameType, actions: PageActions, ...args: DomElementArg[]) {
// If name is blank, this page is censored, so don't include any options for manipulation.
// We can get fancier about this later.
const initName = ('peek' in name) ? name.peek() : name.get();
if (initName === '') { return dom('div', '-'); }
const isRenaming = observable(false);
const pageMenu = () => [
menuItem(() => isRenaming.set(true), "Rename", testId('rename'),
dom.cls('disabled', actions.isReadonly)),
menuItem(actions.onRemove, 'Remove', testId('remove'),
dom.cls('disabled', (use) => use(actions.isReadonly) || actions.isRemoveDisabled())),
menuItem(actions.onDuplicate, 'Duplicate', testId('duplicate'),
dom.cls('disabled', actions.isReadonly)),
dom.maybe(actions.isReadonly, () => menuText('You do not have edit access to this document')),
];
let pageElem: HTMLElement;
// toggle '-renaming' class on the item's header. This is useful to make the background remain the
// same while opening dots menu
const lis = isRenaming.addListener(() => {
const parent = pageElem.closest('.' + itemHeader.className);
if (parent) {
dom.clsElem(parent, itemHeader.className + '-renaming', isRenaming.get());
}
});
return pageElem = dom(
'div',
dom.autoDispose(lis),
domComputed(isRenaming, (isrenaming) => (
isrenaming ?
cssPageItem(
cssPageInitial(dom.text((use) => use(name)[0])),
cssEditorInput(
{
initialValue: typeof name === 'function' ? name() : name.get() || '',
save: (val) => actions.onRename(val),
close: () => isRenaming.set(false)
},
testId('editor'),
dom.on('mousedown', (ev) => ev.stopPropagation()),
dom.on('click', (ev) => { ev.stopPropagation(); ev.preventDefault(); })
),
// Note that we don't pass extra args when renaming is on, because they usually includes
// mouse event handlers interferring with input editor and yields wrong behavior on
// firefox.
) :
cssPageItem(
cssPageInitial(dom.text((use) => use(name)[0])),
cssPageName(dom.text(name), testId('label')),
cssPageMenuTrigger(
cssPageIcon('Dots'),
menu(pageMenu, {placement: 'bottom-start', parentSelectorToMark: '.' + itemHeader.className}),
dom.on('click', (ev) => { ev.stopPropagation(); ev.preventDefault(); }),
// Let's prevent dragging to start when un-intentionally holding the mouse down on '...' menu.
dom.on('mousedown', (ev) => ev.stopPropagation()),
testId('dots'),
),
// Prevents the default dragging behaviour that Firefox support for links which conflicts
// with our own dragging pages.
dom.on('dragstart', (ev) => ev.preventDefault()),
args
)
)),
);
}
const cssPageItem = styled('a', `
--icon-color: ${colors.slate};
display: flex;
flex-direction: row;
height: 28px;
align-items: center;
flex-grow: 1;
.${treeViewContainer.className}-close & {
margin-left: 16px;
}
&, &:hover, &:focus {
text-decoration: none;
outline: none;
color: inherit;
}
`);
const cssPageInitial = styled('div', `
flex-shrink: 0;
color: white;
border-radius: 3px;
background-color: ${colors.slate};
width: 16px;
height: 16px;
text-align: center;
margin-right: 8px;
`);
const cssPageName = styled('div', `
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
.${treeViewContainer.className}-close & {
display: none;
}
`);
function onHoverSupport(yesNo: boolean) {
// On desktop, we show page menu button on hover over page link. This isn't usable on mobile,
// and interferes with clicks on iOS; so instead we show the button when the page is selected.
//
// We can achieve the distinction in CSS with
// @media (hover: hover) { ... }
// @media (hover: none) { ... }
//
// Except that it interferes with tests, because headless Chrome test on Linux incorrectly
// matches (hover: none). To work around it, we assume desktop browsers can always hover,
// and use trivial match-all/match-none media queries on desktop browsers.
if (isDesktop()) {
return yesNo ? 'all' : 'not all';
} else {
return yesNo ? '(hover: hover)' : '(hover: none)';
}
}
const cssPageMenuTrigger = styled('div', `
cursor: default;
display: none;
margin-right: 4px;
margin-left: auto;
line-height: 0px;
border-radius: 3px;
height: 24px;
width: 24px;
padding: 4px;
.${treeViewContainer.className}-close & {
display: none !important;
}
&.weasel-popup-open {
display: block;
}
@media ${onHoverSupport(true)} {
.${itemHeaderWrapper.className}-not-dragging:hover & {
display: block;
}
}
@media ${onHoverSupport(false)} {
.${itemHeaderWrapper.className}-not-dragging > .${itemHeader.className}.selected & {
display: block;
}
}
.${itemHeaderWrapper.className}-not-dragging &:hover, &.weasel-popup-open {
background-color: ${colors.darkGrey};
}
.${itemHeaderWrapper.className}-not-dragging > .${itemHeader.className}.selected &:hover,
.${itemHeaderWrapper.className}-not-dragging > .${itemHeader.className}.selected &.weasel-popup-open {
background-color: ${colors.slate};
}
.${itemHeader.className}.weasel-popup-open, .${itemHeader.className}-renaming {
background-color: ${colors.mediumGrey};
}
`);
const cssPageIcon = styled(icon, `
.${itemHeader.className}.selected & {
background-color: white;
}
`);