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ext.translate.translationstats.graphbuilder.js
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ext.translate.translationstats.graphbuilder.js
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/*!
* Graph component to display translation stats using ChartJS
* @license GPL-2.0-or-later
*/
( function () {
'use strict';
var graphInfo = {
edits: mw.msg( 'translate-statsf-count-edits' ),
users: mw.msg( 'translate-statsf-count-users' ),
registrations: mw.msg( 'translate-statsf-count-registrations' ),
reviews: mw.msg( 'translate-statsf-count-reviews' ),
reviewers: mw.msg( 'translate-statsf-count-reviewers' )
}, granularityInfo = {
years: mw.msg( 'translate-statsf-scale-years' ),
months: mw.msg( 'translate-statsf-scale-months' ),
weeks: mw.msg( 'translate-statsf-scale-weeks' ),
days: mw.msg( 'translate-statsf-scale-days' ),
hours: mw.msg( 'translate-statsf-scale-hours' )
}, graphColors = [
'skyblue', 'green', 'orange', 'blue', 'red', 'darkgreen', 'purple', 'peru',
'cyan', 'salmon', 'slateblue', 'yellowgreen', 'magenta', 'aquamarine', 'gold', 'violet'
],
GraphBuilder;
/**
* Used to display translation stats graph. Each instance of this class manages one
* instance of the graph.
*
* @internal
* @param {Object} $graphContainer The title of the page including language code
* to store the translation.
* @param {Object} graphOptions Graph options, current only processes the width and height.
* @return {Object} Instance of the graph builder
*/
GraphBuilder = function ( $graphContainer, graphOptions ) {
var $graphElement = $( '<canvas>' )
.attr( 'class', 'mw-translate-translationstats-graph' )
.attr( 'role', 'img' )
.attr( 'tabindex', 0 )
.text( mw.msg( 'translate-statsf-graph-alt-text-info' ) ),
$graphWrapper = $( '<div>' )
.attr( 'class', 'mw-translationstats-graph-container' ),
$loadingElement = $( '<div>' )
.attr( 'class', 'tux-loading-indicator tux-loading-indicator--centered' ),
$errorElement = $( '<div>' )
.attr( 'class', 'mw-translate-error-container' ),
$tableElement = $( '<table>' )
.addClass( 'wikitable mw-translate-translationstats-table' )
.attr( 'tabindex', 0 )
.attr(
'summary', mw.msg( 'translate-statsf-alt-text' )
),
lineChart;
$graphWrapper
.width( graphOptions && graphOptions.width )
.height( graphOptions && graphOptions.height );
// Set the container height and width if passed.
$graphContainer.append( [
$graphWrapper,
$loadingElement,
$errorElement
] );
$graphWrapper.append( $graphElement );
/**
* @param options
* @internal
*/
function display( options ) {
if ( lineChart ) {
cleanup();
}
// Set the appropriate height and width and display the loader.
$graphWrapper
.width( options.width )
.height( options.height );
showLoading();
return getData( options ).then( function ( graphData ) {
// Hide the loader before displaying the data.
showData( graphData, options );
} ).fail( function ( errorCode, results ) {
var errorInfo = results && results.error ? results.error.info :
mw.msg( 'translate-statsf-unknown-error' );
displayError( mw.msg( 'translate-statsf-error-message', errorInfo ) );
} ).always( function () {
hideLoading();
} );
}
function showData( apiResponse, options ) {
var graphData = getAxesLabelsAndData( apiResponse.data ),
graphDatasets = [],
datasetLabels = apiResponse.labels;
if ( graphData.data.length ) {
graphData.data.forEach( function ( dataset, datasetIndex ) {
var graphDataset = {
data: dataset,
fill: false,
borderColor: getLineColor( datasetIndex )
};
if ( datasetLabels[ datasetIndex ] ) {
graphDataset.label = datasetLabels[ datasetIndex ];
}
graphDatasets.push( graphDataset );
} );
}
lineChart = new Chart( $graphElement, {
type: 'line',
data: {
labels: graphData.axesLabels,
datasets: graphDatasets
},
options: {
maintainAspectRatio: false,
legend: {
display: datasetLabels.length !== 0
},
scales: {
yAxes: [ {
scaleLabel: {
display: true,
labelString: getXAxesLabel( options.measure )
},
ticks: {
beginAtZero: true,
precision: 0,
callback: function ( value ) {
return mw.language.convertNumber( Number( value ) );
}
}
} ],
xAxes: [ {
scaleLabel: {
display: true,
labelString: getYAxesLabel( options.granularity )
},
ticks: {
maxTicksLimit: 15
},
gridLines: {
display: false
}
} ]
},
tooltips: {
callbacks: {
label: function ( tooltipItem, data ) {
var convertedValue = mw.language.convertNumber( Number( tooltipItem.yLabel ) ),
label = data.datasets[ tooltipItem.datasetIndex ].label;
if ( label ) {
return label + ': ' + convertedValue;
}
return convertedValue;
}
}
}
}
} );
// Generate table inside the canvas element to improve accessibility.
showTable( graphData, datasetLabels, options );
}
function getAxesLabelsAndData( jsonGraphData ) {
var labels = [], graphData = [],
labelIndex = 0,
maxValue = 0, minValue = 0;
for ( var labelProp in jsonGraphData ) {
if ( !labels.includes( labelProp ) ) {
labels.push( labelProp );
}
var labelData = jsonGraphData[ labelProp ];
for ( var i = 0; i < labelData.length; ++i ) {
if ( !graphData[ i ] ) {
graphData[ i ] = [];
}
var currentValue = labelData[ i ];
graphData[ i ][ labelIndex ] = currentValue;
if ( currentValue < minValue ) {
minValue = currentValue;
}
if ( currentValue > maxValue ) {
maxValue = currentValue;
}
}
++labelIndex;
}
return {
axesLabels: labels,
data: graphData,
max: maxValue,
min: minValue
};
}
function getXAxesLabel( measure ) {
return graphInfo[ measure ];
}
function getYAxesLabel( granularity ) {
return granularityInfo[ granularity ];
}
function getData( filterOptions ) {
var api = new mw.Api(),
apiParams = {
action: 'translationstats',
count: filterOptions.measure,
days: filterOptions.days,
start: filterOptions.start || null,
scale: filterOptions.granularity,
group: filterOptions.group,
language: filterOptions.language,
formatversion: 2
};
// Remove null or empty array from request object
Object.keys( apiParams ).forEach( function ( apiParamKey ) {
var apiParamValue = apiParams[ apiParamKey ];
if (
apiParamValue === null ||
( Array.isArray( apiParamValue ) && apiParamValue.length === 0 )
) {
delete apiParams[ apiParamKey ];
}
} );
return api.get( apiParams ).then( function ( result ) {
return result.translationstats;
} );
}
function getLineColor( index ) {
var colorIndex = index % graphColors.length,
colorName = graphColors[ colorIndex ];
return colorName;
}
function displayError( errorMessage ) {
$errorElement.text( errorMessage );
$graphContainer.addClass( 'mw-translate-has-error' )
.height( 'auto' );
}
/** @internal */
function showLoading() {
// show loading, and hide error messages.
$graphContainer.addClass( 'mw-translate-loading' )
.removeClass( 'mw-translate-has-error' );
}
function hideLoading() {
$graphContainer.removeClass( 'mw-translate-loading' );
}
function showTable( graphData, datasetLabels, options ) {
$tableElement
.append(
$( '<caption>' ).text( getGraphSummary( options ) )
)
.append( getTableHead( datasetLabels, options ) )
.append( getTableBody( graphData ) );
$graphContainer.append( $tableElement );
}
function getTableHead( datasetLabels, options ) {
var $tableHead = $( '<thead>' ),
$tableHeadRow = $( '<tr>' ),
i = 0;
$tableHeadRow.append( $( '<th>' ).text( getYAxesLabel( options.granularity ) ) );
if ( datasetLabels && datasetLabels.length ) {
for ( ; i < datasetLabels.length; ++i ) {
$tableHeadRow.append( $( '<th>' ).text( datasetLabels[ i ] ) );
}
} else {
$tableHeadRow.append( $( '<th>' ).text( getXAxesLabel( options.measure ) ) );
}
return $tableHead.append( $tableHeadRow );
}
function getTableBody( graphData ) {
var $tbody = $( '<tbody>' );
for ( var scaleIndex = 0; scaleIndex < graphData.axesLabels.length; scaleIndex++ ) {
var $tBodyRow = $( '<tr>' )
.append( $( '<td>' ).text( graphData.axesLabels[ scaleIndex ] ) );
for ( var datasetIndex = 0; datasetIndex < graphData.data.length; datasetIndex++ ) {
var columnValue = '';
if (
graphData.data[ datasetIndex ] &&
graphData.data[ datasetIndex ][ scaleIndex ] !== undefined
) {
columnValue =
mw.language.convertNumber(
Number( graphData.data[ datasetIndex ][ scaleIndex ] )
);
}
$tBodyRow.append( $( '<td>' ).text( columnValue ) );
}
$tbody.append( $tBodyRow );
}
return $tbody;
}
function cleanup() {
lineChart.destroy();
$tableElement.remove();
}
function getGraphSummary( options ) {
return getXAxesLabel( options.measure ) + ' / ' +
getYAxesLabel( options.granularity );
}
return {
display: display,
showLoading: showLoading
};
};
mw.translate = mw.translate || {};
mw.translate.TranslationStatsGraphBuilder = mw.translate.TranslationStatsGraphBuilder || GraphBuilder;
}() );

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