35 lines
897 B
Go
35 lines
897 B
Go
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package ui
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import "io"
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var _ Resources = &fallbackResources{}
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type fallbackResources struct {
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resources Resources
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fallback Resources
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}
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// NewFallbackResources creates a Resources that first will try to access resources and on failure will try to access the fallback resources. Will take ownership of both resources (Destroy).
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func NewFallbackResources(resources, fallback Resources) Resources {
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return &fallbackResources{resources, fallback}
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}
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func (r *fallbackResources) OpenResource(name string) (io.ReadCloser, error) {
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if reader, err := r.resources.OpenResource(name); err == nil {
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return reader, nil
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}
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return r.fallback.OpenResource(name)
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}
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func (r *fallbackResources) Destroy() error {
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errResources := r.resources.Destroy()
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errFallback := r.fallback.Destroy()
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if errResources != nil {
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return errResources
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}
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if errFallback != nil {
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return errFallback
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}
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return nil
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}
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