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OO.ui.bind = $.proxy; /** * @property {Object} */ OO.ui.Keys = { UNDEFINED: 0, BACKSPACE: 8, DELETE: 46, LEFT: 37, RIGHT: 39, UP: 38, DOWN: 40, ENTER: 13, END: 35, HOME: 36, TAB: 9, PAGEUP: 33, PAGEDOWN: 34, ESCAPE: 27, SHIFT: 16, SPACE: 32 }; /** * Constants for MouseEvent.which * * @property {Object} */ OO.ui.MouseButtons = { LEFT: 1, MIDDLE: 2, RIGHT: 3 }; /** * @property {number} * @private */ OO.ui.elementId = 0; /** * Generate a unique ID for element * * @return {string} ID */ OO.ui.generateElementId = function () { OO.ui.elementId++; return 'ooui-' + OO.ui.elementId; }; /** * Check if an element is focusable. * Inspired by :focusable in jQueryUI v1.11.4 - 2015-04-14 * * @param {jQuery} $element Element to test * @return {boolean} Element is focusable */ OO.ui.isFocusableElement = function ( $element ) { var nodeName, element = $element[ 0 ]; // Anything disabled is not focusable if ( element.disabled ) { return false; } // Check if the element is visible if ( !( // This is quicker than calling $element.is( ':visible' ) $.expr.pseudos.visible( element ) && // Check that all parents are visible !$element.parents().addBack().filter( function () { return $.css( this, 'visibility' ) === 'hidden'; } ).length ) ) { return false; } // Check if the element is ContentEditable, which is the string 'true' Iif ( element.contentEditable === 'true' ) { return true; } // Anything with a non-negative numeric tabIndex is focusable. // Use .prop to avoid browser bugs if ( $element.prop( 'tabIndex' ) >= 0 ) { return true; } // Some element types are naturally focusable // (indexOf is much faster than regex in Chrome and about the // same in FF: https://jsperf.com/regex-vs-indexof-array2) nodeName = element.nodeName.toLowerCase(); Iif ( [ 'input', 'select', 'textarea', 'button', 'object' ].indexOf( nodeName ) !== -1 ) { return true; } // Links and areas are focusable if they have an href if ( ( nodeName === 'a' || nodeName === 'area' ) && $element.attr( 'href' ) !== undefined ) { return true; } return false; }; /** * Find a focusable child * * @param {jQuery} $container Container to search in * @param {boolean} [backwards] Search backwards * @return {jQuery} Focusable child, or an empty jQuery object if none found */ OO.ui.findFocusable = function ( $container, backwards ) { var $focusable = $( [] ), // $focusableCandidates is a superset of things that // could get matched by isFocusableElement $focusableCandidates = $container .find( 'input, select, textarea, button, object, a, area, [contenteditable], [tabindex]' ); if ( backwards ) { $focusableCandidates = Array.prototype.reverse.call( $focusableCandidates ); } $focusableCandidates.each( function () { var $this = $( this ); if ( OO.ui.isFocusableElement( $this ) ) { $focusable = $this; return false; } } ); return $focusable; }; /** * Get the user's language and any fallback languages. * * These language codes are used to localize user interface elements in the user's language. * * In environments that provide a localization system, this function should be overridden to * return the user's language(s). The default implementation returns English (en) only. * * @return {string[]} Language codes, in descending order of priority */ OO.ui.getUserLanguages = function () { return [ 'en' ]; }; /** * Get a value in an object keyed by language code. * * @param {Object.<string,Mixed>} obj Object keyed by language code * @param {string|null} [lang] Language code, if omitted or null defaults to any user language * @param {string} [fallback] Fallback code, used if no matching language can be found * @return {Mixed} Local value */ OO.ui.getLocalValue = function ( obj, lang, fallback ) { var i, len, langs; // Requested language if ( obj[ lang ] ) { return obj[ lang ]; } // Known user language langs = OO.ui.getUserLanguages(); for ( i = 0, len = langs.length; i < len; i++ ) { lang = langs[ i ]; if ( obj[ lang ] ) { return obj[ lang ]; } } // Fallback language if ( obj[ fallback ] ) { return obj[ fallback ]; } // First existing language for ( lang in obj ) { return obj[ lang ]; } return undefined; }; /** * Check if a node is contained within another node * * Similar to jQuery#contains except a list of containers can be supplied * and a boolean argument allows you to include the container in the match list * * @param {HTMLElement|HTMLElement[]} containers Container node(s) to search in * @param {HTMLElement} contained Node to find * @param {boolean} [matchContainers] Include the container(s) in the list of nodes to match, otherwise only match descendants * @return {boolean} The node is in the list of target nodes */ OO.ui.contains = function ( containers, contained, matchContainers ) { var i; if ( !Array.isArray( containers ) ) { containers = [ containers ]; } for ( i = containers.length - 1; i >= 0; i-- ) { if ( ( matchContainers && contained === containers[ i ] ) || $.contains( containers[ i ], contained ) ) { return true; } } return false; }; /** * Return a function, that, as long as it continues to be invoked, will not * be triggered. The function will be called after it stops being called for * N milliseconds. If `immediate` is passed, trigger the function on the * leading edge, instead of the trailing. * * Ported from: http://underscorejs.org/underscore.js * * @param {Function} func Function to debounce * @param {number} [wait=0] Wait period in milliseconds * @param {boolean} [immediate] Trigger on leading edge * @return {Function} Debounced function */ OO.ui.debounce = function ( func, wait, immediate ) { var timeout; return function () { var context = this, args = arguments, later = function () { timeout = null; if ( !immediate ) { func.apply( context, args ); } }; if ( immediate && !timeout ) { func.apply( context, args ); } if ( !timeout || wait ) { clearTimeout( timeout ); timeout = setTimeout( later, wait ); } }; }; /** * Puts a console warning with provided message. * * @param {string} message Message */ OO.ui.warnDeprecation = function ( message ) { Eif ( OO.getProp( window, 'console', 'warn' ) !== undefined ) { // eslint-disable-next-line no-console console.warn( message ); } }; /** * Returns a function, that, when invoked, will only be triggered at most once * during a given window of time. If called again during that window, it will * wait until the window ends and then trigger itself again. * * As it's not knowable to the caller whether the function will actually run * when the wrapper is called, return values from the function are entirely * discarded. * * @param {Function} func Function to throttle * @param {number} wait Throttle window length, in milliseconds * @return {Function} Throttled function */ OO.ui.throttle = function ( func, wait ) { var context, args, timeout, previous = 0, run = function () { timeout = null; previous = OO.ui.now(); func.apply( context, args ); }; return function () { // Check how long it's been since the last time the function was // called, and whether it's more or less than the requested throttle // period. If it's less, run the function immediately. If it's more, // set a timeout for the remaining time -- but don't replace an // existing timeout, since that'd indefinitely prolong the wait. var remaining = wait - ( OO.ui.now() - previous ); context = this; args = arguments; if ( remaining <= 0 ) { // Note: unless wait was ridiculously large, this means we'll // automatically run the first time the function was called in a // given period. (If you provide a wait period larger than the // current Unix timestamp, you *deserve* unexpected behavior.) clearTimeout( timeout ); run(); } else if ( !timeout ) { timeout = setTimeout( run, remaining ); } }; }; /** * A (possibly faster) way to get the current timestamp as an integer * * @return {number} Current timestamp, in milliseconds since the Unix epoch */ OO.ui.now = Date.now || function () { return new Date().getTime(); }; /** * Reconstitute a JavaScript object corresponding to a widget created by * the PHP implementation. * * This is an alias for `OO.ui.Element.static.infuse()`. * * @param {string|HTMLElement|jQuery} idOrNode * A DOM id (if a string) or node for the widget to infuse. * @param {Object} [config] Configuration options * @return {OO.ui.Element} * The `OO.ui.Element` corresponding to this (infusable) document node. */ OO.ui.infuse = function ( idOrNode, config ) { return OO.ui.Element.static.infuse( idOrNode, config ); }; ( function () { /** * Message store for the default implementation of OO.ui.msg * * Environments that provide a localization system should not use this, but should override * OO.ui.msg altogether. * * @private */ var messages = { // Tool tip for a button that moves items in a list down one place 'ooui-outline-control-move-down': 'Move item down', // Tool tip for a button that moves items in a list up one place 'ooui-outline-control-move-up': 'Move item up', // Tool tip for a button that removes items from a list 'ooui-outline-control-remove': 'Remove item', // Label for the toolbar group that contains a list of all other available tools 'ooui-toolbar-more': 'More', // Label for the fake tool that expands the full list of tools in a toolbar group 'ooui-toolgroup-expand': 'More', // Label for the fake tool that collapses the full list of tools in a toolbar group 'ooui-toolgroup-collapse': 'Fewer', // Default label for the tooltip for the button that removes a tag item 'ooui-item-remove': 'Remove', // Default label for the accept button of a confirmation dialog 'ooui-dialog-message-accept': 'OK', // Default label for the reject button of a confirmation dialog 'ooui-dialog-message-reject': 'Cancel', // Title for process dialog error description 'ooui-dialog-process-error': 'Something went wrong', // Label for process dialog dismiss error button, visible when describing errors 'ooui-dialog-process-dismiss': 'Dismiss', // Label for process dialog retry action button, visible when describing only recoverable errors 'ooui-dialog-process-retry': 'Try again', // Label for process dialog retry action button, visible when describing only warnings 'ooui-dialog-process-continue': 'Continue', // Label for button in combobox input that triggers its dropdown 'ooui-combobox-button-label': 'Dropdown for combobox', // Label for the file selection widget's select file button 'ooui-selectfile-button-select': 'Select a file', // Label for the file selection widget if file selection is not supported 'ooui-selectfile-not-supported': 'File selection is not supported', // Label for the file selection widget when no file is currently selected 'ooui-selectfile-placeholder': 'No file is selected', // Label for the file selection widget's drop target 'ooui-selectfile-dragdrop-placeholder': 'Drop file here', // Label for the help icon attached to a form field 'ooui-field-help': 'Help' }; /** * Get a localized message. * * After the message key, message parameters may optionally be passed. In the default implementation, * any occurrences of $1 are replaced with the first parameter, $2 with the second parameter, etc. * Alternative implementations of OO.ui.msg may use any substitution system they like, as long as * they support unnamed, ordered message parameters. * * In environments that provide a localization system, this function should be overridden to * return the message translated in the user's language. The default implementation always returns * English messages. An example of doing this with [jQuery.i18n](https://github.com/wikimedia/jquery.i18n) * follows. * * @example * var i, iLen, button, * messagePath = 'oojs-ui/dist/i18n/', * languages = [ $.i18n().locale, 'ur', 'en' ], * languageMap = {}; * * for ( i = 0, iLen = languages.length; i < iLen; i++ ) { * languageMap[ languages[ i ] ] = messagePath + languages[ i ].toLowerCase() + '.json'; * } * * $.i18n().load( languageMap ).done( function() { * // Replace the built-in `msg` only once we've loaded the internationalization. * // OOUI uses `OO.ui.deferMsg` for all initially-loaded messages. So long as * // you put off creating any widgets until this promise is complete, no English * // will be displayed. * OO.ui.msg = $.i18n; * * // A button displaying "OK" in the default locale * button = new OO.ui.ButtonWidget( { * label: OO.ui.msg( 'ooui-dialog-message-accept' ), * icon: 'check' * } ); * $( document.body ).append( button.$element ); * * // A button displaying "OK" in Urdu * $.i18n().locale = 'ur'; * button = new OO.ui.ButtonWidget( { * label: OO.ui.msg( 'ooui-dialog-message-accept' ), * icon: 'check' * } ); * $( document.body ).append( button.$element ); * } ); * * @param {string} key Message key * @param {...Mixed} [params] Message parameters * @return {string} Translated message with parameters substituted */ OO.ui.msg = function ( key ) { var message = messages[ key ], params = Array.prototype.slice.call( arguments, 1 ); Eif ( typeof message === 'string' ) { // Perform $1 substitution message = message.replace( /\$(\d+)/g, function ( unused, n ) { var i = parseInt( n, 10 ); return params[ i - 1 ] !== undefined ? params[ i - 1 ] : '$' + n; } ); } else { // Return placeholder if message not found message = '[' + key + ']'; } return message; }; }() ); /** * Package a message and arguments for deferred resolution. * * Use this when you are statically specifying a message and the message may not yet be present. * * @param {string} key Message key * @param {...Mixed} [params] Message parameters * @return {Function} Function that returns the resolved message when executed */ OO.ui.deferMsg = function () { var args = arguments; return function () { return OO.ui.msg.apply( OO.ui, args ); }; }; /** * Resolve a message. * * If the message is a function it will be executed, otherwise it will pass through directly. * * @param {Function|string} msg Deferred message, or message text * @return {string} Resolved message */ OO.ui.resolveMsg = function ( msg ) { if ( typeof msg === 'function' ) { return msg(); } return msg; }; /** * @param {string} url * @return {boolean} */ OO.ui.isSafeUrl = function ( url ) { // Keep this function in sync with php/Tag.php var i, protocolWhitelist; function stringStartsWith( haystack, needle ) { return haystack.substr( 0, needle.length ) === needle; } protocolWhitelist = [ 'bitcoin', 'ftp', 'ftps', 'geo', 'git', 'gopher', 'http', 'https', 'irc', 'ircs', 'magnet', 'mailto', 'mms', 'news', 'nntp', 'redis', 'sftp', 'sip', 'sips', 'sms', 'ssh', 'svn', 'tel', 'telnet', 'urn', 'worldwind', 'xmpp' ]; if ( url === '' ) { return true; } for ( i = 0; i < protocolWhitelist.length; i++ ) { if ( stringStartsWith( url, protocolWhitelist[ i ] + ':' ) ) { return true; } } // This matches '//' too if ( stringStartsWith( url, '/' ) || stringStartsWith( url, './' ) ) { return true; } if ( stringStartsWith( url, '?' ) || stringStartsWith( url, '#' ) ) { return true; } return false; }; /** * Check if the user has a 'mobile' device. * * For our purposes this means the user is primarily using an * on-screen keyboard, touch input instead of a mouse and may * have a physically small display. * * It is left up to implementors to decide how to compute this * so the default implementation always returns false. * * @return {boolean} User is on a mobile device */ OO.ui.isMobile = function () { return false; }; /** * Get the additional spacing that should be taken into account when displaying elements that are * clipped to the viewport, e.g. dropdown menus and popups. This is meant to be overridden to avoid * such menus overlapping any fixed headers/toolbars/navigation used by the site. * * @return {Object} Object with the properties 'top', 'right', 'bottom', 'left', each representing * the extra spacing from that edge of viewport (in pixels) */ OO.ui.getViewportSpacing = function () { return { top: 0, right: 0, bottom: 0, left: 0 }; }; /** * Get the default overlay, which is used by various widgets when they are passed `$overlay: true`. * See <https://www.mediawiki.org/wiki/OOUI/Concepts#Overlays>. * * @return {jQuery} Default overlay node */ OO.ui.getDefaultOverlay = function () { if ( !OO.ui.$defaultOverlay ) { OO.ui.$defaultOverlay = $( '<div>' ).addClass( 'oo-ui-defaultOverlay' ); $( document.body ).append( OO.ui.$defaultOverlay ); } return OO.ui.$defaultOverlay; }; |