Tag: flowchart

[FxOS] Settings App – Wifi

Wifi

Flowchart

Wifi-4

Wifi Panel

Screenshot

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Wifi Panel (A)

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Wifi Panel (B)

Introduction

Wifi panel is the main entry point for the other dialogs / panels. As you may see on the screenshot above, in this panel, users can turn on / off Wifi, decide which AP to connect with and manage certificates or whatever settings related to Wifi.

If you check settings/js/panels/wifi/, you will notice a script which is called wifi_network_list.js. This script is so important that we will use it to generate a list of APs that users can interact with. For example, if you click on any listed AP, it will automatically check its own encryption to show which kind of dialog or just connect to that AP directly.

In addition to this, it will also automatically check its current status from Gecko to see whether it should update its signal / wording … etc. By doing so, we encapsulate all logics within this list and caller doesn’t have to know these details when using it.

Wifi WPS Panel (Dialog)

Screenshot

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Wifi WPS Panel

Introduction

WPS is another way to connect to AP but this needs some special support from it to make the functionality work. If your AP does support this, users can click on Connect with WPS button to select which way to use to connect with WPS.

From Gaia side, there is no much works here and we simply provide a basic UI for users to choose and configure. So for more details, please go check Gecko’s source code for this part.

Wifi Status Panel (Dialog)

Screenshot

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Wifi Status Panel

Introduction

When clicking on connected AP in Wifi Panel, this dialog would be popped up to tell users all needed information about this AP including Security, Signal strength, IP address and Link Speed. In addition to this, you can also forget this AP by clicking right-up button.

Wifi Auth Panel (Dialog)

Screenshot

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Wifi Auth Panel

Introduction

If users click on non-connected and encrypted AP from Wifi panel, we will pop up Wifi Auth Panel to users. Compared with non-encrypted AP, normally users have to type password or do some extra pre-settings to connect to this AP.

Wifi Manage Networks Panel

Screenshot

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Wifi Manage Networks Panel

Introduction

In this panel, we will list down all connected AP here. If users click on the item, the confirm pop-up will be shown to double confirm whether they really want to remove forget connected AP or not. So for this panel’s code, there is no much complex works but only some UI related stuffs.

Wifi Join Hidden Panel (Dialog)

Screenshot

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Wifi Join Hidden Panel

Introduction

This panel is pretty simple enough and it will transform all user’s input into a recognizable object for WifiManager. But there is one thing that should be noticed. Because there are some shared UI / logics for users to select security, EAP method … etc across panels (Wifi Auth Panel & Wifi Join Hidden Panel), we have to use a shared script to control them.

But, sadly, because there are still some minor difference between these two pages, in shard script, we will check some element’s existence before manipulating. So please remember to double check UI codes and shard script for this part before adding new rules. Otherwise, you may break another panel.

Wifi Manage Certificates Panel

Screenshot

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Wifi Manage Certificates Panel

Introduction

If users are trying to connect with AP with WPA-EAP encryption, under some special EAP methods, they need users to provide needed Server Certificates and User Certificates for authentications.

So, if users are trying to connect to AP with these EAP methods, they have to go to this panel and import needed certificates first, otherwise, we can’t find out needed certificates when users are trying to join hidden network.

Wifi Select Certificate File Panel

Screenshot

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Wifi Select Certificate File Panel

Introduction

In this panel, we will list down all possible certificates from SD card and present them to users. When clicking on these items, we will redirect them to Wifi Enter Certificate Nickname Panel.

Wifi Enter Certificate Nickname Panel (Dialog)

Screenshot

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Wifi Enter Certificate Nickname Panel

Introduction

After selecting needed certificate from Wifi Select Certificate File Panel, users will be redirected to this dialog. In this dialog, users can decide whether to rename this certificate or not. Interestingly, if you already have one certificate named with the same name, you are not allowed to name it again because Gecko would throw out some error in this special case.

[FxOS] Settings App – DialogService v.s. DialogManager

Image Credit

settings

DialogService

Flowchart

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DialogService focuses on controlling states between dialogs, it will make sure every time there is only one dialog showing up on the screen and for the others, they will be queued as an internal state and will be executed one by one when current dialog is dismissed.

Right now we support 4 different types of dialogs, AlertDialog, ConfirmDialog, PromptDialog and PanelDialog in DialogService.

For the previous three dialogs, they are used as a substitution of native alert, confirm and prompt API with predefined layout based on UX’s spec. While for PanelDialog, you can define your own dialog with pre-defined interface and DialogService will help you show it with all necessary callbacks are bounded on UI.

While for lifecycle of dialogs, they are all handled in DialogManager and please go check related documentation for this part.

DialogManager

DialogManager-2

DialogManager is a manager that mainly focuses on controlling the whole life cycle of each dialog. It will load panel, initialize panel, use pre-defined transition to show panel when DialogManager.open() is called. While for DialogManager.close(), it will find out which panel is going to be closed, validate the result of onSubmit() or onCancel(), and use pre-defined transition to hide panel.

Basically, this DialogManager will be only used accompanied with DialogService. If you want to know more details about how they are communicated with each other, you can go check settings/js/modules/dialog_service.js for more details.