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agl-distro:demo-apps:home-screen [2022/07/26 21:10]
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-===== Home Screen Demo Application for AGL Distribution ===== 
  
-==== Overview ==== 
-We are developing the Best Freakin'​ Home Screen Ever for release with version 1 of the AGL distribution. ​ 
- 
-This project is covered by [[https://​jira.automotivelinux.org/​browse/​SPEC-24?​filter=10100 | Jira issue SPEC-24]] and its substasks. 
- 
-==== Requirements ==== 
-Requirements for the Home Screen application are based on the [[:​agl_specification|AGL Requirements Specification ver 1.0]]. ​ 
- 
-**//Summary of Home Screen Requirements//​** 
-  * Customize GUI layout by each vehicle, grade, brand and so on. 
-  * Display status notifications,​ pop-up window, system setting, software keyboard for ivi-use. 
-  * Manage applications (menu screen, kick applications launcher, install applications) 
-  * Switch applications ( application stack, last application) 
- 
-The team pulled the requirements from the spec and determined which requirements are to be met during this development cycle (through the end 2015). That list of requirements is {{:​agl-distro:​demo-apps:​agl_spec_homescreen_rev01.pdf|here}}. 
- 
-==== Architecture ==== 
- 
-**//​Comparing ivi-shell to desktop-shell//​** 
- 
-A shell consists of two components. 
-  * Plugin: provided as the weston plugin 
-  * Daemon: GUI for the system. 
-Weston provides two type of plugins. 
-  * desktop-shell:​ for PC use sample. 
-  * ivi-shell: for ivi use provided by GENIVI. 
- 
-|          ^ desktop-shell ​ ^ ivi-shell ​                 ^ 
-^ Plug-in ​ | Standard APIs              | APIs for ivi-applications ​ | 
-^:::       | APIs for desktop creation ​ | APIs for HMI control daemon| 
-^:::       ​| ​                           | Layer control functions ​   | 
-^ daemon ​  | GUI Design ​                | GUI Design ​                | 
-^:::       | Application Launcher ​      | Application Launcher ​      | 
-^:::       ​| ​                           | Layout, layer definition ​  | 
- 
-**Tizen Wiki**([[https://​wiki.tizen.org/​wiki/​IVI-Shell]])\\ 
-IVI-Shell does not support "​wl_shell"​ nor "​xdg-shell"​ (the "​desktop"​ shell protocols found in upstream Weston) but a totally different one, named "​ivi-application"​. 
-This means that standard Wayland clients cannot be displayed on IVI-Shell, unless they somehow use the IVI-Shell protocol. The package itself provides demo clients, but incompatible clients are more common.\\ 
- 
-Which plugin should AGL homescreen use? 
-  * Opt.1: re-use ivi-shell 
-{{:​agl-distro:​demo-apps:​option1.png?​300|}} 
- 
-  * Opt.2: create a new shell for AGL 
-{{:​agl-distro:​demo-apps:​option2.png?​300|}} 
- 
- 
-|          ^ Pros                        ^ Cons                       ^ 
-^ Option 1 | ivi-shell upstream already ​ | Standard API Support needs to be added        | 
-^:::       | Layer functionality available ​ | APIs for HMI control daemon ​               | 
-^ Option 2 | Standard API support available | Need to create new software ​               | 
-^:::       ​| ​                               | Layer functionality needs to be designed ​  | 
- 
-The team prefers to reuse ivi-shell (option 1) assuming the maintainer supports AGL changes. ​ 
-  * Support standard APIs 
-  * Maintain and support AGL requirements 
- 
----- 
- 
-**//​Proposed Software Block Diagram//** 
-{{:​agl-distro:​demo-apps:​softwareblockdiagram_proposal_.png?​700 |}} 
- 
- 
----- 
-**//Weston ivi-shell Software Block Diagram//** 
- 
-{{ :​agl-distro:​demo-apps:​weston_ivi-shell_block_diagram.png?​700 |}} 
- 
-From [[https://​github.com/​Tarnyko/​weston-ivi-shell/​blob/​weston150_ivi-shell_v6/​README.md]] 
- 
- 
-==== Code ==== 
- 
-TBD