# Image Comparer with File Picker ![The web part in action](./assets/ComparerWebPart.gif) ## Summary Allows users to compare Before and After pictures, with a draggable slider. Implements a custom file picker. ## Background The Microsoft UI Fabric team (formerly Office UI Fabric) recently released a [web site](https://fluentfabric.azurewebsites.net/#/components) that allows you to compare the current version of the Office UI Fabric components side by side with their upcoming Fluent versions, using a cool image slider. ![Microsoft Ui Fabric slider in action](./assets/FluentSlider.gif) I wanted to re-create a version of the slider that would allow a user to compare two images, side by side. Re-creating the slider was pretty easy (they use [react-draggable](https://github.com/mzabriskie/react-draggable) to handle dragging); I wanted to make it possible for users to select the Before and After pictures to use the SharePoint File Picker dialog. After a lot of digging around, I decided to re-create my own. After all, one of the premises of SPFx is that SPFx gives us -- the SharePoint developer community -- a framework to build the same web parts that Microsoft's own developers do. Right? This sample re-creates the SharePoint file picker (or, more accurately, the SharePoint image picker) that is used by out-of-the-box web parts such as the Image and Hero web parts. My goal was to create something that would be re-usable, and would be as close as possible from the out-of-the-box picker. In fact, as I was testing the app, I found myself testing the out-of-the-box picker when I thought I was testing my own file picker. After building this sample, I can confirm that it _is_ possible to build web parts that look and feel like the out-of-the-box web parts using SPFx. The file picker includes the following tabs: ### Recent ![Recent tab](./assets/RecentTab.gif) ### Web search ![Web search tab](./assets/WebSearchTab.gif) > NOTE: Requires a Bing API key, see below ### OneDrive ![OneDrive tab](./assets/OneDriveTab.gif) ### Site ![Site tab](./assets/SitesTab.gif) ### Upload ![Upload tab](./assets/UploadTab.gif) ### From a link ![From a link tab](./assets/FromLinkTab.gif) ## Compatibility ![SPFx 1.7.1](https://img.shields.io/badge/SPFx-1.7.1-green.svg) ![Node.js v8](https://img.shields.io/badge/Node.js-v8-green.svg) ![Compatible with SharePoint Online](https://img.shields.io/badge/SharePoint%20Online-Compatible-green.svg) ![Does not work with SharePoint 2019](https://img.shields.io/badge/SharePoint%20Server%202019-Incompatible-red.svg) ![Does not work with SharePoint 2016 (Feature Pack 2)](https://img.shields.io/badge/SharePoint%20Server%202016%20(Feature%20Pack%202)-Incompatible-red.svg "SharePoint Server 2016 Feature Pack 2 requires SPFx 1.1") ![Local Workbench Compatible](https://img.shields.io/badge/Local%20Workbench-Compatible-green.svg) ![Hosted Workbench Compatible](https://img.shields.io/badge/Hosted%20Workbench-Compatible-green.svg) ![Compatible with Remote Containers](https://img.shields.io/badge/Remote%20Containers-Compatible-green.svg) ## Applies to * [SharePoint Framework](https://docs.microsoft.com/sharepoint/dev/spfx/sharepoint-framework-overview) * [Office 365 tenant](https://docs.microsoft.com/sharepoint/dev/spfx/set-up-your-development-environment) ## Solution Solution|Author(s) --------|--------- react-comparer | Hugo Bernier ([Tahoe Ninjas](http://tahoeninjas.blog), @bernierh) ## Version history Version|Date|Comments -------|----|-------- 1.0|January 27, 2019|Initial release ## Minimal Path to Awesome * Clone this repository * In the command line run: * `npm i` * `gulp serve --nobrowser` * In the web browser navigate to the hosted version of the SharePoint workbench located in the same site as where the Tasks list is, eg. *https://contoso.sharepoint.com/sites/team/_layouts/15/workbench.aspx*. > This sample can also be opened with [VS Code Remote Development](https://code.visualstudio.com/docs/remote/remote-overview). Visit https://aka.ms/spfx-devcontainer for further instructions. ## Optional Configuration - Bing Search The sample `PropertyPanelFilePicker` is designed to mimic the standard SharePoint file picker dialog. As such, it includes a **Web search** which uses Bing to return search results. ![Web search with a Bing API key](./assets/WebSearch.gif) However, the feature requires a Bing API key in order to work. If you do not have a Bing API key, the `PropertyPanelFilePicker` will display a message indicating that the Bing API key is missing. ![Web search without a Bing API key](./assets/WebSearchNoAPI.png) ### To Configure a Bing API key (Optional) This sample uses **SharePoint Online Tenant Properties** to store the API key. The idea is that if you get an API key for your organization to use, you want to store it in one place -- the **Tenant Properties** -- instead of having to re-enter the API key in every web part that needs it. To configure your API key, use the following steps: 1. If you don't already have a Bing Web Search API key, go to the [Bing Web Search](https://azure.microsoft.com/en-us/services/cognitive-services/bing-web-search-api/) API page and request a key. 2. To set the API key, you'll need to use the **Office 365 CLI**. If you haven't installed it yet, you can get it [from here](https://pnp.github.io/office365-cli/?utm_campaign=Use+SharePoint+Online+tenant+properties&utm_medium=page&utm_source=msft_docs). 3. Using **Office 365 CLI**, enter the following command, making sure to change **value** with your actual Bing API key, and **appCatalogUrl** with your tenant's app catalog (e.g.: https://contoso.sharepoint.com/sites/apps). ```PowerShell spo storageentity set --appCatalogUrl --key BingApi --value ``` 4. If you want to verify that your API key is stored, use the following command to list all your tenant properties: ```PowerShell spo storageentity list --appCatalogUrl ``` If all goes well, you should see an entry called **BingApi** containing your Bing API key. ### To hide the Web search tab If you want to use this web part without the **Web search** tab, you can simply disable it from the code. To do so, use the following steps: 1. In the solution, open the **ComparerWebPart.ts** file. 2. Look for a line at the top of the file that looks like this: ```TypeScript const DISABLE_WEB_SEARCH_TAB: boolean = false; ``` 3. Change the `false` to `true` 4. Save and rebuild/redeploy the web part. This constant will be applied to both `PropertyPaneFilePicker` controls used in the web part. You can also simply set each `PropertyPaneFilePicker`'s `disableWebSearchTab` property to `true`. ## Features * Using Tenant property * Using of Office UI Fabric React Selection control * Using of Office UI Fabric React Selection control * Making CORS calls within an SPFx component ### Resources * [Fluent for Fabric](https://fluentfabric.azurewebsites.net/#/components) * [Build custom controls for the property pane](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/web-parts/guidance/build-custom-property-pane-controls) * [Office UI Fabric](https://developer.microsoft.com/fluentui/) * [Button](https://developer.microsoft.com/en-us/fabric#/components/button) * [CommandBar](https://developer.microsoft.com/en-us/fabric#/components/commandbar) * [DetailsList](https://developer.microsoft.com/en-us/fabric#/components/detailslist) * [FocusZone](https://developer.microsoft.com/en-us/fabric#/components/focuszone) * [Label](https://developer.microsoft.com/en-us/fabric#/components/label) * [Link](https://developer.microsoft.com/en-us/fabric#/components/link) * [List](https://developer.microsoft.com/en-us/fabric#/components/list) * [MessageBar](https://developer.microsoft.com/en-us/fabric#/components/messagebar) * [Nav](https://developer.microsoft.com/en-us/fabric#/components/nav) * [Panel](https://developer.microsoft.com/en-us/fabric#/components/panel) * [SearchBox](https://developer.microsoft.com/en-us/fabric#/components/searchbox) * [Selection](https://developer.microsoft.com/en-us/fabric#/components/selection) * [Spinner](https://developer.microsoft.com/en-us/fabric#/components/spinner) * [TextField](https://developer.microsoft.com/en-us/fabric#/components/textfield) * [SharePoint Online tenant properties](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/tenant-properties) * [@pnp/spfx-controls-react](https://sharepoint.github.io/sp-dev-fx-controls-react/) * [Placeholder control](https://sharepoint.github.io/sp-dev-fx-controls-react/controls/Placeholder/) * [WebPartTitle](https://sharepoint.github.io/sp-dev-fx-controls-react/controls/WebPartTitle/) * [@pnp/sp](https://pnp.github.io/pnpjs/sp/docs/) * [React-draggable](https://github.com/mzabriskie/react-draggable) * [React-block-image](https://github.com/transitive-bullshit/react-block-image) * [StackExchange - SPFx calls blocked by CORS policy](https://sharepoint.stackexchange.com/questions/254050/spfx-calls-blocked-by-cors-policy) ## Disclaimer **THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.**