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* WikiLambda Vue editor: Application store router
*
* @copyright 2020– Abstract Wikipedia team; see AUTHORS.txt
* @license MIT
*/
'use strict';
const Constants = require( '../../Constants.js' );
/**
* Whether the URL is to Special Evaluate Function Call page
*
* @param {Object} uriQuery The contextual mw.Uri's query sub-object
* @return {boolean}
*/
const isEvaluateFunctionCallPath = function ( uriQuery ) {
return ( uriQuery.title === Constants.PATHS.RUN_FUNCTION_TITLE );
};
/**
* Whether the current config has viewmode=true
*
* @param {Object} uriQuery The contextual mw.Uri's query sub-object
* @return {boolean}
*/
const isViewMode = function () {
const editingData = mw.config.get( 'wgWikiLambda' );
return editingData.viewmode;
};
/**
* Whether the URL is to Special Create ZObject page
*
* @param {Object} uriQuery The contextual mw.Uri's query sub-object
* @return {boolean}
*/
const isCreatePath = function ( uriQuery ) {
return ( uriQuery.title === Constants.PATHS.CREATE_OBJECT_TITLE );
};
/**
* Whether the Root ZObject presented in the view or edit page is a Z8/Function
*
* @param {Object} context The ZObject context in which we're operating
* @return {boolean}
*/
const isFunctionRootObject = function ( context ) {
return context.rootGetters.getCurrentZObjectType === Constants.Z_FUNCTION;
};
/**
* Whether the given URI path string is a known view in Constants.VIEWS
*
* @param {string} view
* @return {boolean}
*/
const viewIsInvalid = function ( view ) {
let viewExist = false;
Object.keys( Constants.VIEWS ).forEach( function ( viewKey ) {
if ( Constants.VIEWS[ viewKey ] === view ) {
viewExist = true;
}
} );
return !viewExist;
};
/**
* @param {string} path
* @param {string} query
*/
const pushToHistoryState = function ( path, query ) {
const stateObj = {
path: path,
query: query
};
const queryString = path + '?' + $.param( query );
window.history.pushState( stateObj, null, queryString );
};
/**
* @param {string} path
* @param {string} query
*/
const replaceToHistoryState = function ( path, query ) {
const stateObj = {
path: path,
query: query
};
const queryString = path + '?' + $.param( query );
window.history.replaceState( stateObj, null, queryString );
};
module.exports = {
state: {
currentPath: mw.Uri().path,
currentView: Constants.VIEWS.Z_OBJECT_VIEWER,
queryParams: mw.Uri().query
},
getters: {
getCurrentView: function ( state ) {
return state.currentView;
},
getQueryParams: function ( state ) {
return state.queryParams;
}
},
mutations: {
CHANGE_CURRENT_VIEW: function ( state, view ) {
state.currentView = view;
},
CHANGE_QUERY_PARAMS: function ( state, queryParams ) {
state.queryParams = queryParams;
}
},
actions: {
/**
* Changes the current View and Query params and updates the history states.
* This method is used to navigate between pages within the UI.
*
* @param {Object} context
* @param {Object} payload
* @param {string} payload.to
* @param {Object} payload.params
*/
navigate: function ( context, payload ) {
if ( viewIsInvalid( payload.to ) ) {
return;
}
context.commit( 'CHANGE_CURRENT_VIEW', payload.to );
if ( payload.params ) {
const queryParamsObject = $.extend( {}, context.state.queryParams, payload.params );
context.commit( 'CHANGE_QUERY_PARAMS', queryParamsObject );
}
const query = $.extend( {}, context.state.queryParams, { view: context.state.currentView } );
pushToHistoryState( context.state.currentPath, query );
},
/**
* Evaluate the Uri path to evaluate what View should be displayed.
*
* @param {Object} context
*/
evaluateUri: function ( context ) {
const uri = mw.Uri();
// Set title of mw query if url is in /wiki/{{ title }} format
if ( !uri.query.title && uri.path.includes( '/wiki' ) ) {
const lastPathIndex = uri.path.lastIndexOf( '/' );
uri.query.title = uri.path.slice( lastPathIndex + 1 );
}
let currentView;
// 1. if Special page Create
if ( isCreatePath( uri.query ) ) {
// I we have zid=Z8 in the uri, render function edit view
// Else, render default view
currentView = ( uri.query.zid === Constants.Z_FUNCTION ) ?
Constants.VIEWS.FUNCTION_EDITOR :
Constants.VIEWS.DEFAULT_VIEW;
// Change view and end?
context.dispatch( 'changeCurrentView', currentView );
return;
}
// 2. if Special page Run Function
if ( isEvaluateFunctionCallPath( uri.query ) ) {
currentView = Constants.VIEWS.FUNCTION_EVALUATOR;
context.dispatch( 'changeCurrentView', currentView );
return;
}
if ( isFunctionRootObject( context ) ) {
currentView = isViewMode() ?
Constants.VIEWS.FUNCTION_VIEWER :
Constants.VIEWS.FUNCTION_EDITOR;
// Change view and end?
context.dispatch( 'changeCurrentView', currentView );
return;
}
currentView = Constants.VIEWS.DEFAULT_VIEW;
context.dispatch( 'changeCurrentView', currentView );
},
/**
* Handle the changes of a view and replace the history state.
* This method is usually used when the change of view is made dynamically.
*
* @param {Object} context
* @param {string} view
*/
changeCurrentView: function ( context, view ) {
context.commit( 'CHANGE_CURRENT_VIEW', view );
const uri = mw.Uri();
// should only replace history state if path query view is set and is different from new view
if ( uri.query.view && uri.query.view !== view ) {
const query = $.extend( uri.query, { view: view } );
replaceToHistoryState( uri.path, query );
}
}
}
};
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