A FileReader based Angular dir
A FileReader based Angular directive to easily preview and upload image files.
A live demo: http://deiwin.github.io/ngImageInputWithPreview/
Installationnpm install --save ng-image-input-with-preview
or
bower install --save ng-image-input-with-preview
Issues with installation:
If bower fails to load the module, try adding the following to your bower.json:
"overrides": { "ng-image-input-with-preview": { "main": "./dist/ng-image-input-with-preview.js" } } Getting started
Include the dependency in your module definition:
angular.module('app', [ // ... other dependencies 'ngImageInputWithPreview' ])
Then you can use the directive:
<form name="myForm"> <input type="file" name="myImage" image-with-preview ng-model="image" accept="image/jpeg,image/png" dimensions="height < 400 && width < 1800 && width > 2 * height" size="size < 2097152"> <span class="error" ng-show="myForm.myImage.$error.image"> Not a JPEG or a PNG! </span> <span class="error" ng-show="myForm.myImage.$error.dimensions"> Invalid dimensions! Expecting a landscape image smaller than 1800x400. </span> <img ng-show="image.src" ng-src="{{image.src}}"/> </form> <script type="text/javascript" src="path/to/ng-image-input-with-preview.js"></script> Options
<input type="file" image-with-preview ng-model="{string}" [accept="{string}"]> Parameters
| Name | Type | Description | Defaults to |
|---|---|---|---|
| ngModel (required) | string |
Assignable angular expression to data-bind to. The data URL encoded image data will be available on the src property. If the angular expression is a string, it will be assumed to be an URL path to an image. The path will then be converted to an object with the path available on the src property and with the isPath property set to true. |
- |
| accept | string |
Works similarly to the HTML specification to restrict the input to certain mime types. Sets image validation error key if the user selected file does not match. NB: File extensions are currently not supported. |
image/jpeg,image/png |
| dimensions | expression |
If this expression is evaluated to be false (or falsy) the $error.dimensions property will be set and the image will be considered invalid. The image's dimensions are available as height and width. |
- |
| size | experssion |
Specifically in bytes. If this expressions is evaluated to be false (or falsy) the $error.size property will be set and the image will be considered invalud. The image's size is available as size. |
- |
Clone this repo, run npm install and then start the demo server with
grunt demo and go to http://localhost:8000/demo/.
版权声明：
1、该文章(资料)来源于互联网公开信息，我方只是对该内容做点评，所分享的下载地址为原作者公开地址。2、网站不提供资料下载，如需下载请到原作者页面进行下载。
