mirror of
https://github.com/element-hq/element-web
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108 lines
2.4 KiB
Markdown
108 lines
2.4 KiB
Markdown
# App load order
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**Dev note**: As of March 2022, the skin is no longer part of the app load order at all. The document's graphs have
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been kept untouched for posterity.
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Old slow flow:
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```mermaid
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flowchart TD
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A1(((load_modernizr))) --> B
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A2((rageshake)) --> B
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B(((skin))) --> C
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C(((olm))) --> D
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D{mobile} --> E
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E((config)) --> F
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F((i18n)) --> G
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style F stroke:lime
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G(((theme))) --> H
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H(((modernizr))) --> app
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style H stroke:red
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```
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Current more parallel flow:
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```mermaid
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flowchart TD
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subgraph index.ts
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style index.ts stroke:orange
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A[/rageshake/] --> B{mobile}
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B-- No -->C1(.)
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B-- Yes -->C2((redirect))
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C1 --> D[/olm/] --> R
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C1 --> E[platform] --> F[/config/]
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F --> G1[/skin/]
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F --> R
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G1 --> H
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G1 --> R
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F --> G2[/theme/]
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G2 --> H
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G2 --> R
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F --> G3[/i18n/]
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G3 --> H
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G3 --> R
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H{modernizr}-- No --> J((incompatible))-- user ignore --> R
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H-- Yes --> R
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linkStyle 0,7,9,11,12,14,15 stroke:blue;
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linkStyle 4,8,10,13,16 stroke:red;
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end
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R>ready] --> 2A
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style R stroke:gray
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subgraph init.tsx
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style init.tsx stroke:lime
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2A[loadApp] --> 2B[matrixchat]
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end
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```
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Key:
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- Parallelogram: async/await task
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- Box: sync task
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- Diamond: conditional branch
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- Circle: user interaction
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- Blue arrow: async task is allowed to settle but allowed to fail
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- Red arrow: async task success is asserted
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Notes:
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- A task begins when all its dependencies (arrows going into it) are fulfilled.
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- The success of setting up rageshake is never asserted, element-web has a fallback path for running without IDB (and thus rageshake).
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- Everything is awaited to be settled before the Modernizr check, to allow it to make use of things like i18n if they are successful.
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Underlying dependencies:
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```mermaid
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flowchart TD
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A((rageshake))
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B{mobile}
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C((config))
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D(((olm)))
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E((i18n))
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F(((load_modernizr)))
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G(((modernizr)))
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H(((skin)))
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I(((theme)))
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X[app]
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A --> G
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A --> B
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A-- assert -->X
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F --> G --> X
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G --> H --> X
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C --> I --> X
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C --> E --> X
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E --> G
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B --> C-- assert -->X
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B --> D --> X
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style X stroke:red
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style G stroke:red
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style E stroke:lime
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linkStyle 0,11 stroke:yellow;
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linkStyle 2,13 stroke:red;
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```
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