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fix: components not using parent page patchShan; fix: chat example nil pointer error when sync outside action

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This commit is contained in:
Joao Goncalves
2025-11-15 02:34:11 -01:00
parent 042975fdd7
commit 80879216b2
4 changed files with 20 additions and 17 deletions
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25
context.go
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@@ -189,7 +189,7 @@ func (c *Context) injectSignals(sigs map[string]any) {
}
}
func (c *Context) getSSE() chan patch {
func (c *Context) getPatchChan() chan patch {
// components use parent page sse stream
var patchChan chan patch
if c.isComponent() {
@@ -220,12 +220,13 @@ func (c *Context) prepareSignalsForPatch() map[string]any {
// Sync pushes the current view state and signal changes to the browser immediately
// over the live SSE event stream.
func (c *Context) Sync() {
patchChan := c.getPatchChan()
elemsPatch := bytes.NewBuffer(make([]byte, 0))
if err := c.view().Render(elemsPatch); err != nil {
c.app.logErr(c, "sync view failed: %v", err)
return
}
c.patchChan <- patch{patchTypeElements, elemsPatch.String()}
patchChan <- patch{patchTypeElements, elemsPatch.String()}
c.mutex.RLock()
defer c.mutex.RUnlock()
@@ -233,7 +234,7 @@ func (c *Context) Sync() {
if len(updatedSigs) != 0 {
outgoingSigs, _ := json.Marshal(updatedSigs)
c.patchChan <- patch{patchTypeSignals, string(outgoingSigs)}
patchChan <- patch{patchTypeSignals, string(outgoingSigs)}
}
}
@@ -255,11 +256,7 @@ func (c *Context) Sync() {
// Then, the merge will only occur if the ID of the top level element in the patch
// matches 'my-element'.
func (c *Context) SyncElements(elem h.H) {
sse := c.getSSE()
if sse == nil {
c.app.logWarn(c, "elements out of sync: no sse stream")
return
}
patchChan := c.getPatchChan()
if c.view == nil {
c.app.logErr(c, "sync element failed: viewfn is nil")
return
@@ -270,29 +267,29 @@ func (c *Context) SyncElements(elem h.H) {
}
b := bytes.NewBuffer(make([]byte, 0))
_ = elem.Render(b)
c.patchChan <- patch{patchTypeElements, b.String()}
patchChan <- patch{patchTypeElements, b.String()}
}
// SyncSignals pushes the current signal changes to the browser immediately
// over the live SSE event stream.
func (c *Context) SyncSignals() {
patchChan := c.getPatchChan()
c.mutex.RLock()
updatedSigs := c.prepareSignalsForPatch()
defer c.mutex.RUnlock()
if len(updatedSigs) != 0 {
outgoingSignals, _ := json.Marshal(updatedSigs)
c.patchChan <- patch{patchTypeSignals, string(outgoingSignals)}
patchChan <- patch{patchTypeSignals, string(outgoingSignals)}
}
}
func (c *Context) ExecScript(s string) {
sse := c.getSSE()
if sse == nil {
c.app.logWarn(c, "script out of sync: no sse stream")
if s == "" {
return
}
c.patchChan <- patch{patchTypeScript, s}
patchChan := c.getPatchChan()
patchChan <- patch{patchTypeScript, s}
}
func newContext(id string, route string, app *V) *Context {