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109 lines
3.2 KiB
Text
109 lines
3.2 KiB
Text
@workInProgress
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@ngdoc overview
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@name Tutorial: Step 10
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@description
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<table id="tutorial_nav">
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<tr>
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<td id="previous_step">{@link tutorial.step_9 Previous}</td>
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<td id="step_result">{@link http://angular.github.com/angular-phonecat/step-10/app Example}</td>
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<td id="tut_home">{@link tutorial Tutorial Home}</td>
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<td id="code_diff">{@link
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https://github.com/angular/angular-phonecat/commit/abe1e13c7d9e725fdd3b811ca5ec28ea0d973aab Code
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Diff}</td>
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<td id="next_step">{@link tutorial.step_11 Next}</td>
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</tr>
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</table>
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In this step we will add a phone image swapping feature. We want to be able to click on a
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thumbnail image in the phone details page, and have that action change the large phone image to
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match the selection.
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__`app/partials/phone-detail.html`.__
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<pre>
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<img ng:src="{{mainImageUrl}}" class="phone"/>
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<h1>{{phone.name}}</h1>
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<p>{{phone.description}}</p>
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<ul class="phone-thumbs">
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<li ng:repeat="img in phone.images">
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<img ng:src="{{img}}" ng:click="setImage(img)">
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</li>
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</ul>
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...
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</pre>
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__`app/js/controllers.js`.__
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<pre>
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...
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function PhoneDetailCtrl($xhr) {
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var self = this;
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$xhr('GET', 'phones/' + self.params.phoneId + '.json', function(code, response) {
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self.phone = response;
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self.mainImageUrl = response.images[0];
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});
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self.setImage = function(imageUrl) {
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self.mainImageUrl = imageUrl;
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}
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}
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//PhoneDetailCtrl.$inject = ['$xhr'];
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</pre>
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__`test/e2e/scenarios.js`.__
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<pre>
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/* jasmine-like end2end tests go here */
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...
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describe('Phone detail view', function() {
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beforeEach(function() {
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browser().navigateTo('../../app/index.html#/phones/nexus-s');
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});
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it('should display nexus-s page', function() {
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expect(binding('phone.name')).toBe('Nexus S');
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});
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it('should display "0.large" image as the main phone image', function() {
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expect(element('img.phone').attr('src')).toBe('img/phones/nexus-s.0.jpg');
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});
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it('should swap main image if a thumbnail image is clicked on', function() {
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element('.phone-thumbs li:nth-child(3) img').click();
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expect(element('img.phone').attr('src')).toBe('img/phones/nexus-s.2.jpg');
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element('.phone-thumbs li:nth-child(1) img').click();
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expect(element('img.phone').attr('src')).toBe('img/phones/nexus-s.0.jpg');
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});
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});
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});
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</pre>
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## Discussion:
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Adding the phone image swapping feature is fairly straightforward:
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- We defined the `mainImageUrl` model variable in the details controller (`PhoneDetailCtrl`) and
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set the default value of `mainImageUrl` to the first image in the array of images.
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- We created a `setImage` controller method to change `mainImageUrl` to the image clicked on by
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the user.
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- We registered an `ng:click` handler for thumb images to use the `setImage` controller method.
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- And of course, we added e2e tests for our new feature.
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<table id="tutorial_nav">
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<tr>
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<td id="previous_step">{@link tutorial.step_9 Previous}</td>
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<td id="step_result">{@link http://angular.github.com/angular-phonecat/step-10/app Example}</td>
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<td id="tut_home">{@link tutorial Tutorial Home}</td>
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<td id="code_diff">{@link
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https://github.com/angular/angular-phonecat/commit/abe1e13c7d9e725fdd3b811ca5ec28ea0d973aab Code
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Diff}</td>
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<td id="next_step">{@link tutorial.step_11 Next}</td>
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</tr>
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</table>
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