7077c933a4
Fixes safe_template_linter errors for everything under verify_student. Includes fixes to Jasmine tests and usage of HtmlUtils functionality.
107 lines
3.3 KiB
JavaScript
107 lines
3.3 KiB
JavaScript
/*global jQuery, _, Backbone, gettext */
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/**
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* Base view for defining steps in the payment/verification flow.
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*
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* Step subclasses are responsible for defining a template
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* and installing custom event handlers (including buttons
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* to move to the next step).
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*
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*/
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var edx = edx || {};
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(function( $, _, Backbone, gettext ) {
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'use strict';
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edx.verify_student = edx.verify_student || {};
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edx.verify_student.StepView = Backbone.View.extend({
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initialize: function( obj ) {
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_.extend( this, obj );
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/* Mix non-conflicting functions from underscore.string
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* (all but include, contains, and reverse) into the
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* Underscore namespace.
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*/
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_.mixin(_.str.exports());
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},
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render: function() {
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var templateHtml = $( "#" + this.templateName + "-tpl" ).html();
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// Allow subclasses to add additional information
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// to the template context, perhaps asynchronously.
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this.updateContext( this.templateContext() ).done(
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function( templateContext ) {
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// Render the template into the DOM
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edx.HtmlUtils.setHtml( $(this.el), edx.HtmlUtils.template(templateHtml)( templateContext ) );
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// Allow subclasses to install custom event handlers
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this.postRender();
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}
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).fail( _.bind( this.handleError, this ) );
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return this;
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},
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handleError: function( errorTitle, errorMsg ) {
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this.errorModel.set({
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errorTitle: errorTitle || gettext( "Error" ),
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errorMsg: errorMsg || gettext( "An error has occurred. Please try reloading the page." ),
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shown: true
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});
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},
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templateContext: function() {
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var context = {
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nextStepTitle: this.nextStepTitle
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};
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return _.extend( context, this.defaultContext(), this.stepData );
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},
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/**
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* Provide default values for the template context.
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* Subclasses can use this to fill in values that
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* the underscore templates expect to be defined.
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* This is especially useful for testing, so that the
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* tests can pass in only the values relevant
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* to the test.
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*/
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defaultContext: function() {
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return {};
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},
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/**
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* Subclasses can override this to add information to
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* the template context. This returns an asynchronous
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* Promise, so the subclass can fill in the template
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* after completing an AJAX request.
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* The default implementation is a no-op.
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*/
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updateContext: function( templateContext ) {
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var view = this;
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return $.Deferred(
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function( defer ) {
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defer.resolveWith( view, [ templateContext ]);
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}
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).promise();
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},
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postRender: function() {
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// Sub-classes can override this method
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// to install custom event handlers.
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},
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nextStep: function() {
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this.trigger('next-step');
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},
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goToStep: function( stepName ) {
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this.trigger( 'go-to-step', stepName );
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}
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});
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})( jQuery, _, Backbone, gettext );
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