User facing:
When a FLUX main model is selected, users may now add Regional Reference Image layers.
When switching between FLUX Redux and FLUX IP Adapter, the settings will change to match the model type. (IP Adapter has weight, begin/end step, but Redux does not.) The image will be retained when switching between the two.
Otherwise it works the same way as IP Adapter - both in Global and Regional Reference Image layers.
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Internal state handling:
Slightly awkward, but it was easiest to make FLUX Redux a second type of IP Adapter in redux state.
Global and regional reference images still have a single `ipAdapter` field, but it can have a type of `ip_adapter` or `flux_redux`.
Ideally, this field is called `config` or `settings` or something, but we are past that point. We _could_ do a migration to rename it, but I don't think it's worth the effort.
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Other changes:
- Updated canvas layer validators to handle FLUX Redux.
- Updated model list loading logic to un-set FLUX Redux models in Canvas if they are not in the list (e.g. if the user deletes the model in the main app).
- Updated graph builders - new `addFLUXRedux` util & updated `addRegions` util.
- Updated the `buildModelsHook` util to return a hook that accepts a filter callback. This handles a discrepancy: FLUX IP Adapter does not support regional guidance, but FLUX Redux does. The Regional Guidance settings provide the filter to filter out FLUX IP Adapter models from the combined list of IP Adapter ahd Redux models.
This big chungus reworks and simplifies much of the logic around loading and saving workflows. It also makes some minor changes to how store the current workflow and determine if it is a draft, user workflow or default workflow.
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The lower-level hooks to save a workflow have been revised:
- `useSaveLibraryWorkflow`: Saves a user or project workflow that has had changes made to it.
- `useCreateNewWorkflow`: Saves a workflow as a new entity.
A new higher-level hook `useSaveOrSaveAsWorkflow` is intended to be used by components. It returns a single function that:
- Constructs the workflow payload to be sent to the server
- Checks if the workflow is an existing user workflow. If so, it immediately saves (updates) that workflow.
- If it's not an existing user workflow, it opens the save as dialog so the user can choose a name for it and create a new workflow. This occurs for both draft workflows and loaded default workflows.
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The logic to build the current redux state into a workflow - either to be saved as JSON, to update an existing user workflow, or save as - was a bit convoluted.
Changes to redux state triggered a debounced function to build the workflow, setting it in a global nanostores atom. Then, all of the functions that consumed the "built workflow" referenced this atom.
Now, this logic is strictly imperative. When a consumer wants to save a workflow, we build it on the spot. This removes a layer of indirection.
The logic is in the `useBuildWorkflowFast` hook.
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The logic for loading a workflow is also revised. Previously, it happened in an RTK listener. You'd need to dispatch an action to load a workflow, and wouldn't know if it succeeded or not (though the listener would make a toast if the load failed).
This is now done in a callback, outside redux middleware. The callback is returned from the `useLoadWorkflow` hook.
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Previously, we stripped the id from default workflows when loading them. Then, when saving the workflow, we built a workflow object from redux state and hit the API with it.
This has two issues:
- It relies on redux state never having an ID set when a default workflow is loaded. If we somehow ended up with a default workflow's ID in redux, when we go to save the workflow, we'd get and error or it wouldn't work, because you cannot save a default workflow. You can only save-as it.
- We do not know the default workflow from which the current workflow was loaded. And be cause we don't know the default workflow, we cannot show a thumbnail image.
The responsibilities have been shifted around a bit.
Now, when we load a workflow, we load it as-is. The default workflow IDs are saved in redux state. We can render the thumbnail, and if the user goes to save the workflow, we detect that it is a default workflow and save-as it.
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In `App.tsx`, the long list of modals are moved into their own "isolator" component to ensure any re-renders there do not affect the rest of the app.
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The save-workflow-as modal is restructured to be a bit simpler. Still works the same. On commercial, "save to project" will be enabled by default.
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The workflow JSON tab uses a debounced version of "buildWorkflow" to build the workflow as JSON.
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`buildWorkflowFast` is updated to deep-copy its _whole_ output, preventing issues where field types could accidentally get mutated. I don't think this has ever happened but we may as well be safe.
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Fixed an issue where the edit button in the workflow list didn't open the workflow in edit mode.
