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mediawiki.widgets.visibleLengthLimit.js
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mediawiki.widgets.visibleLengthLimit.js
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( function () {
'use strict';
const { byteLength, codePointLength } = require( 'mediawiki.String' );
const { colonSeparator } = require( './contentMessages.json' );
/**
* @internal
* @param {string} lengthLimiter
* @param {OO.ui.TextInputWidget} textInputWidget
* @param {number} [limit]
* @param {Function} [filterFunction]
*/
function internalVisibleLimit( lengthLimiter, textInputWidget, limit, filterFunction ) {
limit = limit || +textInputWidget.$input.attr( 'maxlength' );
if ( !filterFunction || typeof filterFunction !== 'function' ) {
filterFunction = undefined;
}
const lengthFunction = lengthLimiter === 'byteLimit' ? byteLength : codePointLength;
function updateCount() {
let value = textInputWidget.getValue(),
remaining;
if ( filterFunction ) {
value = filterFunction( value );
}
remaining = limit - lengthFunction( value );
if ( remaining > 99 ) {
remaining = '';
} else {
remaining = mw.language.convertNumber( remaining );
}
textInputWidget.setLabel( remaining );
}
textInputWidget.on( 'change', updateCount );
// Initialise value
updateCount();
// Actually enforce limit
textInputWidget.$input[ lengthLimiter ]( limit, filterFunction );
}
/**
* @internal
* @param {string} lengthLimiter
* @param {OO.ui.TextInputWidget} textInputWidget
* @param {OO.ui.DropdownInputWidget} dropdownInputWidget
* @param {number} [limit]
*/
function internalVisibleLimitWithDropdown( lengthLimiter, textInputWidget, dropdownInputWidget, limit ) {
const filterFunction = function ( input ) {
let comment = dropdownInputWidget.getValue();
if ( comment === 'other' ) {
comment = input;
} else if ( input !== '' ) {
// Entry from drop down menu + additional comment
comment += colonSeparator + input;
}
return comment;
};
internalVisibleLimit( lengthLimiter, textInputWidget, limit, filterFunction );
// Keep the remaining counter in sync when reason list changed
dropdownInputWidget.on( 'change', () => {
textInputWidget.emit( 'change' );
} );
}
/**
* Add a visible byte limit label to a TextInputWidget.
*
* Loaded from `mediawiki.widgets.visibleLengthLimit` module.
*
* Uses {@link module:jquery.lengthLimit.$.fn.byteLimit byteLimit} to enforce the limit.
*
* @param {OO.ui.TextInputWidget} textInputWidget
* @param {number} [limit] Byte limit, defaults to input's `maxlength` attribute
* @param {Function} [filterFunction] Function to call on the string before assessing the length
*/
mw.widgets.visibleByteLimit = function ( textInputWidget, limit, filterFunction ) {
internalVisibleLimit( 'byteLimit', textInputWidget, limit, filterFunction );
};
/**
* Add a visible codepoint (character) limit label to a TextInputWidget.
*
* Loaded from `mediawiki.widgets.visibleLengthLimit` module.
*
* Uses {@link module:jquery.lengthLimit.$.fn.codePointLimit codePointLimit} to enforce the limit.
*
* @param {OO.ui.TextInputWidget} textInputWidget
* @param {number} [limit] Code point limit, defaults to input's `maxlength` attribute
* @param {Function} [filterFunction] Function to call on the string before assessing the length
*/
mw.widgets.visibleCodePointLimit = function ( textInputWidget, limit, filterFunction ) {
internalVisibleLimit( 'codePointLimit', textInputWidget, limit, filterFunction );
};
/**
* Add a visible byte limit label to a TextInputWidget, assuming that the value of the
* DropdownInputWidget will be added as a prefix. MediaWiki formats the comment fields for many
* actions that way, e.g. for page deletion.
*
* Loaded from `mediawiki.widgets.visibleLengthLimit` module.
*
* Uses {@link module:jquery.lengthLimit.$.fn.byteLimit byteLimit} to enforce the limit.
*
* @param {OO.ui.TextInputWidget} textInputWidget
* @param {OO.ui.DropdownInputWidget} dropdownInputWidget
* @param {number} [limit] Code point limit, defaults to input's `maxlength` attribute
*/
mw.widgets.visibleByteLimitWithDropdown = function ( textInputWidget, dropdownInputWidget, limit ) {
internalVisibleLimitWithDropdown( 'byteLimit', textInputWidget, dropdownInputWidget, limit );
};
/**
* Add a visible codepoint (character) limit label to a TextInputWidget, assuming that the value
* of the DropdownInputWidget will be added as a prefix. MediaWiki formats the comment fields for
* many actions that way, e.g. for page deletion.
*
* Loaded from `mediawiki.widgets.visibleLengthLimit` module.
*
* Uses {@link module:jquery.lengthLimit.$.fn.codePointLimit codePointLimit} to enforce the limit.
*
* @param {OO.ui.TextInputWidget} textInputWidget
* @param {OO.ui.DropdownInputWidget} dropdownInputWidget
* @param {number} [limit] Code point limit, defaults to input's `maxlength` attribute
*/
mw.widgets.visibleCodePointLimitWithDropdown = function ( textInputWidget, dropdownInputWidget, limit ) {
internalVisibleLimitWithDropdown( 'codePointLimit', textInputWidget, dropdownInputWidget, limit );
};
}() );

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mediawiki.widgets.visibleLengthLimit.js (4 KB)

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