Adding an option to hide map in browse events.

Adding an option to hide map in browse events.

Open Event provides filtering while browsing events. These filters are present in a sidebar which also consists of a map. In this blog, I will describe how I implemented the feature to toggle the visibility of the map present in sidebar for mobile devices.

About the issue

This issue was part of improvements decided for the browse events section. Earlier the map in sidebar was shown irrespective of the user’s device. It is essentially not required to always show the map in mobile device and is a better choice to provide user with an option to view or hide the map.

Sidebar as viewed from an android device before the fix was merged.

The Solution

A button is introduced in the mobile view which controls if the map should be visible or hidden. In the sidebar component (app/components/explore/side-bar.js), a variable “isMapVisible” which decides if the map should be visible (if it is true) or not (if it is false) at a particular instant. A new action “toggleMap” is written which changes the value of “isMapVisible” whenever the button is clicked.

isMapVisible = true;
@action
  toggleMap() {
    this.toggleProperty(‘isMapVisible’);
  }

In the handlebar file (app/templates/components/explore/side-bar.hbs), the map and associated text is changed as per the truthy or falsy value of the “isMapVisible” in the component.

<div class=”map item {{if (not isMapVisible) ‘mobile hidden’}}”>

{{#if device.isMobile}}
  <div class=”ui bottom attached button” role=”button” {{action ‘toggleMap’}}> {{if (not isMapVisible) ‘Show’ ‘Hide’}} Map </div>
{{/if}}

After making the changes, the sidebar looks as follows on the mobile devices

The above images are from an Android device.

Resources:

Issue: https://github.com/fossasia/open-event-frontend/issues/3122
Pull Request: https://github.com/fossasia/open-event-frontend/pull/3444

Ember Docs:https://guides.emberjs.com/v2.14.0/tutorial/simple-component/Toggle Component Tutorial: https://www.learnhowtoprogram.com/ember-js/ember-js/components-hide-show-image

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