mirror of
https://github.com/yiisoft/yii2.git
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541 lines
20 KiB
JavaScript
541 lines
20 KiB
JavaScript
/**
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* Yii JavaScript module.
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*
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* @link https://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license https://www.yiiframework.com/license/
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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/**
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* yii is the root module for all Yii JavaScript modules.
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* It implements a mechanism of organizing JavaScript code in modules through the function "yii.initModule()".
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*
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* Each module should be named as "x.y.z", where "x" stands for the root module (for the Yii core code, this is "yii").
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*
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* A module may be structured as follows:
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*
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* ```javascript
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* window.yii.sample = (function($) {
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* var pub = {
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* // whether this module is currently active. If false, init() will not be called for this module
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* // it will also not be called for all its child modules. If this property is undefined, it means true.
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* isActive: true,
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* init: function() {
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* // ... module initialization code goes here ...
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* },
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*
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* // ... other public functions and properties go here ...
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* };
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*
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* // ... private functions and properties go here ...
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*
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* return pub;
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* })(window.jQuery);
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* ```
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*
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* Using this structure, you can define public and private functions/properties for a module.
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* Private functions/properties are only visible within the module, while public functions/properties
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* may be accessed outside of the module. For example, you can access "yii.sample.isActive".
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*
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* You must call "yii.initModule()" once for the root module of all your modules.
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*/
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window.yii = (function ($) {
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var pub = {
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/**
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* List of JS or CSS URLs that can be loaded multiple times via AJAX requests.
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* Each item may be represented as either an absolute URL or a relative one.
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* Each item may contain a wildcard matching character `*`, that means one or more
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* any characters on the position. For example:
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* - `/css/*.css` will match any file ending with `.css` in the `css` directory of the current web site
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* - `http*://cdn.example.com/*` will match any files on domain `cdn.example.com`, loaded with HTTP or HTTPS
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* - `/js/myCustomScript.js?realm=*` will match file `/js/myCustomScript.js` with defined `realm` parameter
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*/
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reloadableScripts: [],
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/**
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* The selector for clickable elements that need to support confirmation and form submission.
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*/
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clickableSelector: 'a, button, input[type="submit"], input[type="button"], input[type="reset"], ' +
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'input[type="image"]',
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/**
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* The selector for changeable elements that need to support confirmation and form submission.
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*/
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changeableSelector: 'select, input, textarea',
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/**
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* @return string|undefined the CSRF parameter name. Undefined is returned if CSRF validation is not enabled.
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*/
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getCsrfParam: function () {
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return $('meta[name=csrf-param]').attr('content');
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},
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/**
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* @return string|undefined the CSRF token. Undefined is returned if CSRF validation is not enabled.
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*/
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getCsrfToken: function () {
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return $('meta[name=csrf-token]').attr('content');
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},
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/**
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* Sets the CSRF token in the meta elements.
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* This method is provided so that you can update the CSRF token with the latest one you obtain from the server.
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* @param name the CSRF token name
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* @param value the CSRF token value
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*/
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setCsrfToken: function (name, value) {
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$('meta[name=csrf-param]').attr('content', name);
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$('meta[name=csrf-token]').attr('content', value);
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},
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/**
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* Updates all form CSRF input fields with the latest CSRF token.
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* This method is provided to avoid cached forms containing outdated CSRF tokens.
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*/
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refreshCsrfToken: function () {
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var token = pub.getCsrfToken();
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if (token) {
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$('form input[name="' + pub.getCsrfParam() + '"]').val(token);
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}
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},
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/**
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* Displays a confirmation dialog.
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* The default implementation simply displays a js confirmation dialog.
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* You may override this by setting `yii.confirm`.
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* @param message the confirmation message.
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* @param ok a callback to be called when the user confirms the message
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* @param cancel a callback to be called when the user cancels the confirmation
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*/
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confirm: function (message, ok, cancel) {
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if (window.confirm(message)) {
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!ok || ok();
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} else {
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!cancel || cancel();
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}
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},
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/**
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* Handles the action triggered by user.
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* This method recognizes the `data-method` attribute of the element. If the attribute exists,
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* the method will submit the form containing this element. If there is no containing form, a form
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* will be created and submitted using the method given by this attribute value (e.g. "post", "put").
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* For hyperlinks, the form action will take the value of the "href" attribute of the link.
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* For other elements, either the containing form action or the current page URL will be used
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* as the form action URL.
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*
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* If the `data-method` attribute is not defined, the `href` attribute (if any) of the element
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* will be assigned to `window.location`.
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*
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* Starting from version 2.0.3, the `data-params` attribute is also recognized when you specify
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* `data-method`. The value of `data-params` should be a JSON representation of the data (name-value pairs)
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* that should be submitted as hidden inputs. For example, you may use the following code to generate
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* such a link:
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*
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* ```php
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* use yii\helpers\Html;
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* use yii\helpers\Json;
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*
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* echo Html::a('submit', ['site/foobar'], [
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* 'data' => [
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* 'method' => 'post',
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* 'params' => [
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* 'name1' => 'value1',
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* 'name2' => 'value2',
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* ],
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* ],
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* ]);
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* ```
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*
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* @param $e the jQuery representation of the element
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* @param event Related event
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*/
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handleAction: function ($e, event) {
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var $form = $e.attr('data-form') ? $('#' + $e.attr('data-form')) : $e.closest('form'),
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method = !$e.data('method') && $form ? $form.attr('method') : $e.data('method'),
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action = $e.attr('href'),
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isValidAction = action && action !== '#',
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params = $e.data('params'),
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areValidParams = params && $.isPlainObject(params),
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pjax = $e.data('pjax'),
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usePjax = pjax !== undefined && pjax !== 0 && $.support.pjax,
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pjaxContainer,
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pjaxOptions = {},
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conflictParams = ['submit', 'reset', 'elements', 'length', 'name', 'acceptCharset',
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'action', 'enctype', 'method', 'target'];
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// Forms and their child elements should not use input names or ids that conflict with properties of a form,
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// such as submit, length, or method.
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$.each(conflictParams, function (index, param) {
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if (areValidParams && params.hasOwnProperty(param)) {
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console.error("Parameter name '" + param + "' conflicts with a same named form property. " +
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"Please use another name.");
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}
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});
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if (usePjax) {
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pjaxContainer = $e.data('pjax-container');
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if (pjaxContainer === undefined || !pjaxContainer.length) {
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pjaxContainer = $e.closest('[data-pjax-container]').attr('id')
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? ('#' + $e.closest('[data-pjax-container]').attr('id'))
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: '';
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}
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if (!pjaxContainer.length) {
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pjaxContainer = 'body';
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}
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pjaxOptions = {
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container: pjaxContainer,
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push: !!$e.data('pjax-push-state'),
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replace: !!$e.data('pjax-replace-state'),
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scrollTo: $e.data('pjax-scrollto'),
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pushRedirect: $e.data('pjax-push-redirect'),
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replaceRedirect: $e.data('pjax-replace-redirect'),
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skipOuterContainers: $e.data('pjax-skip-outer-containers'),
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timeout: $e.data('pjax-timeout'),
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originalEvent: event,
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originalTarget: $e
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};
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}
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if (method === undefined) {
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if (isValidAction) {
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usePjax ? $.pjax.click(event, pjaxOptions) : window.location.assign(action);
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} else if ($e.is(':submit') && $form.length) {
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if (usePjax) {
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$form.on('submit', function (e) {
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$.pjax.submit(e, pjaxOptions);
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});
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}
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$form.trigger('submit');
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}
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return;
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}
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var oldMethod,
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oldAction,
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newForm = !$form.length;
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if (!newForm) {
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oldMethod = $form.attr('method');
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$form.attr('method', method);
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if (isValidAction) {
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oldAction = $form.attr('action');
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$form.attr('action', action);
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}
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} else {
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if (!isValidAction) {
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action = pub.getCurrentUrl();
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}
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$form = $('<form/>', {method: method, action: action});
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var target = $e.attr('target');
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if (target) {
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$form.attr('target', target);
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}
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if (!/(get|post)/i.test(method)) {
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$form.append($('<input/>', {name: '_method', value: method, type: 'hidden'}));
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method = 'post';
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$form.attr('method', method);
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}
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if (/post/i.test(method)) {
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var csrfParam = pub.getCsrfParam();
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if (csrfParam) {
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$form.append($('<input/>', {name: csrfParam, value: pub.getCsrfToken(), type: 'hidden'}));
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}
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}
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$form.hide().appendTo('body');
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}
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var activeFormData = $form.data('yiiActiveForm');
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if (activeFormData) {
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// Remember the element triggered the form submission. This is used by yii.activeForm.js.
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activeFormData.submitObject = $e;
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}
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if (areValidParams) {
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$.each(params, function (name, value) {
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$form.append($('<input/>').attr({name: name, value: value, type: 'hidden'}));
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});
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}
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if (usePjax) {
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$form.on('submit', function (e) {
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$.pjax.submit(e, pjaxOptions);
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});
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}
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$form.trigger('submit');
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$.when($form.data('yiiSubmitFinalizePromise')).done(function () {
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if (newForm) {
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$form.remove();
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return;
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}
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if (oldAction !== undefined) {
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$form.attr('action', oldAction);
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}
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$form.attr('method', oldMethod);
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if (areValidParams) {
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$.each(params, function (name) {
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$('input[name="' + name + '"]', $form).remove();
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});
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}
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});
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},
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getQueryParams: function (url) {
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var pos = url.indexOf('?');
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if (pos < 0) {
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return {};
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}
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var pairs = $.grep(url.substring(pos + 1).split('#')[0].split('&'), function (value) {
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return value !== '';
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});
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var params = {};
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for (var i = 0, len = pairs.length; i < len; i++) {
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var pair = pairs[i].split('=');
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var name = decodeURIComponent(pair[0].replace(/\+/g, '%20'));
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var value = pair.length > 1 ? decodeURIComponent(pair[1].replace(/\+/g, '%20')) : '';
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if (!name.length) {
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continue;
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}
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if (params[name] === undefined) {
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params[name] = value || '';
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} else {
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if (!$.isArray(params[name])) {
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params[name] = [params[name]];
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}
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params[name].push(value || '');
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}
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}
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return params;
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},
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initModule: function (module) {
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if (module.isActive !== undefined && !module.isActive) {
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return;
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}
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if ($.isFunction(module.init)) {
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module.init();
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}
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$.each(module, function () {
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if ($.isPlainObject(this)) {
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pub.initModule(this);
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}
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});
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},
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init: function () {
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initCsrfHandler();
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initRedirectHandler();
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initAssetFilters();
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initDataMethods();
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},
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/**
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* Returns the URL of the current page without params and trailing slash. Separated and made public for testing.
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* @returns {string}
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*/
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getBaseCurrentUrl: function () {
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return window.location.protocol + '//' + window.location.host;
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},
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/**
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* Returns the URL of the current page. Used for testing, you can always call `window.location.href` manually
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* instead.
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* @returns {string}
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*/
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getCurrentUrl: function () {
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return window.location.href;
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}
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};
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function initCsrfHandler()
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{
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// automatically send CSRF token for all AJAX requests
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$.ajaxPrefilter(function (options, originalOptions, xhr) {
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if (!options.crossDomain && pub.getCsrfParam()) {
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xhr.setRequestHeader('X-CSRF-Token', pub.getCsrfToken());
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}
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});
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pub.refreshCsrfToken();
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}
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function initRedirectHandler()
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{
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// handle AJAX redirection
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$(document).ajaxComplete(function (event, xhr) {
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var url = xhr && xhr.getResponseHeader('X-Redirect');
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if (url) {
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window.location.assign(url);
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}
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});
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}
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function initAssetFilters()
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{
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/**
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* Used for storing loaded scripts and information about loading each script if it's in the process of loading.
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* A single script can have one of the following values:
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*
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* - `undefined` - script was not loaded at all before or was loaded with error last time.
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* - `true` (boolean) - script was successfully loaded.
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* - object - script is currently loading.
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*
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* In case of a value being an object the properties are:
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* - `xhrList` - represents a queue of XHR requests sent to the same URL (related with this script) in the same
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* small period of time.
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* - `xhrDone` - boolean, acts like a locking mechanism. When one of the XHR requests in the queue is
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* successfully completed, it will abort the rest of concurrent requests to the same URL until cleanup is done
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* to prevent possible errors and race conditions.
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* @type {{}}
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*/
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var loadedScripts = {};
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$('script[src]').each(function () {
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var url = getAbsoluteUrl(this.src);
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loadedScripts[url] = true;
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});
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$.ajaxPrefilter('script', function (options, originalOptions, xhr) {
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if (options.dataType == 'jsonp') {
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return;
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}
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var url = getAbsoluteUrl(options.url),
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forbiddenRepeatedLoad = loadedScripts[url] === true && !isReloadableAsset(url),
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cleanupRunning = loadedScripts[url] !== undefined && loadedScripts[url]['xhrDone'] === true;
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if (forbiddenRepeatedLoad || cleanupRunning) {
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xhr.abort();
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return;
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}
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if (loadedScripts[url] === undefined || loadedScripts[url] === true) {
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loadedScripts[url] = {
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xhrList: [],
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xhrDone: false
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};
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}
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xhr.done(function (data, textStatus, jqXHR) {
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// If multiple requests were successfully loaded, perform cleanup only once
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if (loadedScripts[jqXHR.yiiUrl]['xhrDone'] === true) {
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return;
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}
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loadedScripts[jqXHR.yiiUrl]['xhrDone'] = true;
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for (var i = 0, len = loadedScripts[jqXHR.yiiUrl]['xhrList'].length; i < len; i++) {
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var singleXhr = loadedScripts[jqXHR.yiiUrl]['xhrList'][i];
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if (singleXhr && singleXhr.readyState !== XMLHttpRequest.DONE) {
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singleXhr.abort();
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}
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}
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loadedScripts[jqXHR.yiiUrl] = true;
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}).fail(function (jqXHR, textStatus) {
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if (textStatus === 'abort') {
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return;
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}
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delete loadedScripts[jqXHR.yiiUrl]['xhrList'][jqXHR.yiiIndex];
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var allFailed = true;
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for (var i = 0, len = loadedScripts[jqXHR.yiiUrl]['xhrList'].length; i < len; i++) {
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if (loadedScripts[jqXHR.yiiUrl]['xhrList'][i]) {
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allFailed = false;
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}
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}
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if (allFailed) {
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delete loadedScripts[jqXHR.yiiUrl];
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}
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});
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// Use prefix for custom XHR properties to avoid possible conflicts with existing properties
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xhr.yiiIndex = loadedScripts[url]['xhrList'].length;
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xhr.yiiUrl = url;
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loadedScripts[url]['xhrList'][xhr.yiiIndex] = xhr;
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});
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$(document).ajaxComplete(function () {
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var styleSheets = [];
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$('link[rel=stylesheet]').each(function () {
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var url = getAbsoluteUrl(this.href);
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if (isReloadableAsset(url)) {
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return;
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}
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$.inArray(url, styleSheets) === -1 ? styleSheets.push(url) : $(this).remove();
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});
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});
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}
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function initDataMethods()
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{
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var handler = function (event) {
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var $this = $(this),
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method = $this.data('method'),
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message = $this.data('confirm'),
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form = $this.data('form');
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if (method === undefined && message === undefined && form === undefined) {
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return true;
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}
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if (message !== undefined && message !== false && message !== '') {
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$.proxy(pub.confirm, this)(message, function () {
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pub.handleAction($this, event);
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});
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} else {
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pub.handleAction($this, event);
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}
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event.stopImmediatePropagation();
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return false;
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};
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// handle data-confirm and data-method for clickable and changeable elements
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$(document).on('click.yii', pub.clickableSelector, handler)
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.on('change.yii', pub.changeableSelector, handler);
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}
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function isReloadableAsset(url)
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{
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for (var i = 0; i < pub.reloadableScripts.length; i++) {
|
|
var rule = getAbsoluteUrl(pub.reloadableScripts[i]);
|
|
var match = new RegExp("^" + escapeRegExp(rule).split('\\*').join('.+') + "$").test(url);
|
|
if (match === true) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// https://stackoverflow.com/questions/3446170/escape-string-for-use-in-javascript-regex/6969486#6969486
|
|
function escapeRegExp(str)
|
|
{
|
|
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
|
|
}
|
|
|
|
/**
|
|
* Returns absolute URL based on the given URL
|
|
* @param {string} url Initial URL
|
|
* @returns {string}
|
|
*/
|
|
function getAbsoluteUrl(url)
|
|
{
|
|
return url.charAt(0) === '/' ? pub.getBaseCurrentUrl() + url : url;
|
|
}
|
|
|
|
return pub;
|
|
})(window.jQuery);
|
|
|
|
window.jQuery(function () {
|
|
window.yii.initModule(window.yii);
|
|
});
|