@wordpress/block-library
Version:
Block library for the WordPress editor.
8 lines (7 loc) • 10.3 kB
Source Map (JSON)
{
"version": 3,
"sources": ["../../src/tabs/view.js"],
"sourcesContent": ["import {\n\tstore,\n\tgetContext,\n\tgetElement,\n\twithSyncEvent,\n} from '@wordpress/interactivity';\n\nconst { actions, state } = store(\n\t'core/tabs',\n\t{\n\t\tstate: {\n\t\t\t/**\n\t\t\t * Gets a contextually aware list of tabs for the current tabs block.\n\t\t\t *\n\t\t\t * @type {Array}\n\t\t\t */\n\t\t\tget tabsList() {\n\t\t\t\tconst context = getContext();\n\t\t\t\tconst tabsId = context?.tabsId;\n\t\t\t\tconst tabsList = state[ tabsId ];\n\t\t\t\treturn tabsList;\n\t\t\t},\n\t\t\t/**\n\t\t\t * Gets the index of the active tab element whether it\n\t\t\t * is a tab label or tab panel.\n\t\t\t *\n\t\t\t * @type {number|null}\n\t\t\t */\n\t\t\tget tabIndex() {\n\t\t\t\tconst { attributes } = getElement();\n\t\t\t\tconst tabId = attributes?.id?.replace( 'tab__', '' ) || null;\n\t\t\t\tif ( ! tabId ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\t\t\t\tconst { tabsList } = state;\n\t\t\t\tconst tabIndex = tabsList.findIndex( ( t ) => t === tabId );\n\t\t\t\treturn tabIndex;\n\t\t\t},\n\t\t\t/**\n\t\t\t * Whether the tab panel or tab label is the active tab.\n\t\t\t *\n\t\t\t * @type {boolean}\n\t\t\t */\n\t\t\tget isActiveTab() {\n\t\t\t\tconst { activeTabIndex } = getContext();\n\t\t\t\tconst { tabIndex } = state;\n\t\t\t\treturn activeTabIndex === tabIndex;\n\t\t\t},\n\t\t\t/**\n\t\t\t * The value of the hidden attribute for tab panels.\n\t\t\t *\n\t\t\t * Inactive panels use the `until-found` state rather than being\n\t\t\t * hidden outright, so their content stays reachable by the\n\t\t\t * browser's find-in-page and by fragment navigation. The browser\n\t\t\t * fires `beforematch` on the panel before revealing it, which is\n\t\t\t * where the matching tab gets activated.\n\t\t\t *\n\t\t\t * @type {string|null}\n\t\t\t */\n\t\t\tget isHidden() {\n\t\t\t\treturn state.isActiveTab ? null : 'until-found';\n\t\t\t},\n\t\t\t/**\n\t\t\t * The value of the tabindex attribute for tab buttons and tab\n\t\t\t * panels. Only the active tab should be in the tab sequence.\n\t\t\t *\n\t\t\t * An inactive panel is hidden with `until-found`, which leaves it\n\t\t\t * in the layout, so it stays focusable unless it is taken out of\n\t\t\t * the tab sequence here.\n\t\t\t *\n\t\t\t * @type {number}\n\t\t\t */\n\t\t\tget tabIndexAttribute() {\n\t\t\t\treturn state.isActiveTab ? 0 : -1;\n\t\t\t},\n\t\t},\n\t\tactions: {\n\t\t\t/**\n\t\t\t * Handles the keydown events for the tab label and tabs controller.\n\t\t\t *\n\t\t\t * @param {KeyboardEvent} event The keydown event.\n\t\t\t */\n\t\t\thandleTabKeyDown: withSyncEvent( ( event ) => {\n\t\t\t\tconst { tabIndex, tabsList } = state;\n\n\t\t\t\tif ( tabIndex === null ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tif ( event.key === 'ArrowRight' ) {\n\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\tactions.moveFocus( tabIndex + 1 );\n\t\t\t\t} else if ( event.key === 'ArrowLeft' ) {\n\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\tactions.moveFocus( tabIndex - 1 );\n\t\t\t\t} else if ( event.key === 'Home' ) {\n\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\tactions.moveFocus( 0 );\n\t\t\t\t} else if ( event.key === 'End' ) {\n\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\tactions.moveFocus( tabsList.length - 1 );\n\t\t\t\t}\n\t\t\t} ),\n\t\t\t/**\n\t\t\t * Handles the click event for the tab label.\n\t\t\t *\n\t\t\t * @param {MouseEvent} event The click event.\n\t\t\t */\n\t\t\thandleTabClick: withSyncEvent( ( event ) => {\n\t\t\t\tevent.preventDefault();\n\n\t\t\t\tconst { tabIndex } = state;\n\t\t\t\tif ( tabIndex !== null ) {\n\t\t\t\t\tactions.setActiveTab( tabIndex );\n\t\t\t\t}\n\t\t\t} ),\n\t\t\t/**\n\t\t\t * Activates the tab whose panel the browser is about to reveal.\n\t\t\t *\n\t\t\t * Fired on a panel hidden with `until-found` when find-in-page or\n\t\t\t * a fragment navigation matches content inside it.\n\t\t\t */\n\t\t\thandleBeforeMatch: () => {\n\t\t\t\tconst { tabIndex } = state;\n\t\t\t\tif ( tabIndex !== null ) {\n\t\t\t\t\tactions.setActiveTab( tabIndex );\n\t\t\t\t}\n\t\t\t},\n\t\t\t/**\n\t\t\t * Moves focus to a specific tab without activating it.\n\t\t\t *\n\t\t\t * @param {number} tabIndex The index to move focus to.\n\t\t\t */\n\t\t\tmoveFocus: ( tabIndex ) => {\n\t\t\t\tconst { tabsList } = state;\n\n\t\t\t\tif ( ! tabsList || tabsList.length === 0 ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tlet newIndex = tabIndex;\n\t\t\t\tif ( newIndex < 0 ) {\n\t\t\t\t\tnewIndex = tabsList.length - 1;\n\t\t\t\t} else if ( newIndex >= tabsList.length ) {\n\t\t\t\t\tnewIndex = 0;\n\t\t\t\t}\n\n\t\t\t\tconst tabId = tabsList[ newIndex ];\n\t\t\t\tconst tabElement = document.getElementById( 'tab__' + tabId );\n\t\t\t\tif ( tabElement ) {\n\t\t\t\t\ttabElement.focus();\n\t\t\t\t}\n\t\t\t},\n\t\t\t/**\n\t\t\t * Sets the active tab index.\n\t\t\t *\n\t\t\t * @param {number} tabIndex The index of the active tab.\n\t\t\t * @param {boolean} scrollToTab Whether to scroll to the tab element.\n\t\t\t */\n\t\t\tsetActiveTab: ( tabIndex, scrollToTab = false ) => {\n\t\t\t\tconst { tabsList } = state;\n\n\t\t\t\tif ( ! tabsList || tabsList.length === 0 ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tlet newIndex = tabIndex;\n\t\t\t\tif ( newIndex < 0 ) {\n\t\t\t\t\tnewIndex = 0;\n\t\t\t\t} else if ( newIndex >= tabsList.length ) {\n\t\t\t\t\tnewIndex = tabsList.length - 1;\n\t\t\t\t}\n\n\t\t\t\tconst context = getContext();\n\t\t\t\tcontext.activeTabIndex = newIndex;\n\n\t\t\t\tif ( scrollToTab ) {\n\t\t\t\t\tconst tabId = tabsList[ newIndex ];\n\t\t\t\t\tconst tabElement = document.getElementById( tabId );\n\t\t\t\t\tif ( tabElement ) {\n\t\t\t\t\t\tsetTimeout( () => {\n\t\t\t\t\t\t\ttabElement.scrollIntoView( { behavior: 'smooth' } );\n\t\t\t\t\t\t}, 100 );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t},\n\t\t},\n\t\tcallbacks: {\n\t\t\tactivateTabByHash: () => {\n\t\t\t\tconst { tabsList } = state;\n\n\t\t\t\tif ( ! tabsList || tabsList.length === 0 ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst targetElement = document.querySelector( ':target' );\n\t\t\t\tif ( ! targetElement ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst panelIndex = tabsList.findIndex(\n\t\t\t\t\t( t ) => t === targetElement.id\n\t\t\t\t);\n\t\t\t\tif ( panelIndex >= 0 ) {\n\t\t\t\t\tactions.setActiveTab( panelIndex, true );\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Walk up the panels containing the target rather than taking\n\t\t\t\t// the nearest one, so that nested tabs resolve to the panel\n\t\t\t\t// belonging to this block.\n\t\t\t\tlet panel = targetElement.closest( '.wp-block-tab-panel' );\n\t\t\t\tlet tabIndex = -1;\n\n\t\t\t\twhile ( panel && tabIndex < 0 ) {\n\t\t\t\t\ttabIndex = tabsList.findIndex( ( t ) => t === panel.id );\n\t\t\t\t\tpanel =\n\t\t\t\t\t\tpanel.parentElement?.closest( '.wp-block-tab-panel' ) ??\n\t\t\t\t\t\tnull;\n\t\t\t\t}\n\n\t\t\t\tif ( tabIndex < 0 ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tactions.setActiveTab( tabIndex );\n\t\t\t\twindow.setTimeout( () => {\n\t\t\t\t\ttargetElement.scrollIntoView();\n\t\t\t\t}, 0 );\n\t\t\t},\n\t\t},\n\t},\n\t{\n\t\tlock: true,\n\t}\n);\n"],
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}