95 lines
2.7 KiB
Go
95 lines
2.7 KiB
Go
package htmx
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import (
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"net/http"
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"github.com/labstack/echo/v4"
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)
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// Request headers: https://htmx.org/docs/#request-headers
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const (
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HeaderBoosted = "HX-Boosted"
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HeaderHistoryRestoreRequest = "HX-History-Restore-Request"
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HeaderPrompt = "HX-Prompt"
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HeaderRequest = "HX-Request"
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HeaderTarget = "HX-Target"
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HeaderTrigger = "HX-Trigger"
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HeaderTriggerName = "HX-Trigger-Name"
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)
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// Response headers: https://htmx.org/docs/#response-headers
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const (
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HeaderPushURL = "HX-Push-Url"
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HeaderRedirect = "HX-Redirect"
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HeaderReplaceURL = "HX-Replace-Url"
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HeaderRefresh = "HX-Refresh"
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HeaderTriggerAfterSettle = "HX-Trigger-After-Settle"
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HeaderTriggerAfterSwap = "HX-Trigger-After-Swap"
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)
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type (
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// Request contains data that HTMX provides during requests
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Request struct {
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Enabled bool
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Boosted bool
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HistoryRestore bool
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Trigger string
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TriggerName string
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Target string
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Prompt string
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}
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// Response contain data that the server can communicate back to HTMX
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Response struct {
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PushURL string
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Redirect string
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Refresh bool
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ReplaceURL string
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Trigger string
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TriggerAfterSwap string
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TriggerAfterSettle string
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NoContent bool
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}
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)
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// GetRequest extracts HTMX data from the request
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func GetRequest(ctx echo.Context) Request {
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return Request{
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Enabled: ctx.Request().Header.Get(HeaderRequest) == "true",
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Boosted: ctx.Request().Header.Get(HeaderBoosted) == "true",
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Trigger: ctx.Request().Header.Get(HeaderTrigger),
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TriggerName: ctx.Request().Header.Get(HeaderTriggerName),
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Target: ctx.Request().Header.Get(HeaderTarget),
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Prompt: ctx.Request().Header.Get(HeaderPrompt),
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HistoryRestore: ctx.Request().Header.Get(HeaderHistoryRestoreRequest) == "true",
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}
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}
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// Apply applies data from a Response to a server response
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func (r Response) Apply(ctx echo.Context) {
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if r.PushURL != "" {
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ctx.Response().Header().Set(HeaderPushURL, r.PushURL)
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}
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if r.Redirect != "" {
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ctx.Response().Header().Set(HeaderRedirect, r.Redirect)
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}
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if r.Refresh {
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ctx.Response().Header().Set(HeaderRefresh, "true")
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}
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if r.Trigger != "" {
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ctx.Response().Header().Set(HeaderTrigger, r.Trigger)
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}
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if r.TriggerAfterSwap != "" {
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ctx.Response().Header().Set(HeaderTriggerAfterSwap, r.TriggerAfterSwap)
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}
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if r.TriggerAfterSettle != "" {
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ctx.Response().Header().Set(HeaderTriggerAfterSettle, r.TriggerAfterSettle)
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}
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if r.ReplaceURL != "" {
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ctx.Response().Header().Set(HeaderReplaceURL, r.ReplaceURL)
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}
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if r.NoContent {
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ctx.Response().Status = http.StatusNoContent
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}
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}
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