779718a088
* # This is a combination of 4 commits. # This is the 1st commit message: Chatroom example # This is the commit message #2: Avatar styling # This is the commit message #3: Styling # This is the commit message #4: cleanup * Chatroom example Avatar styling Benchmark tests Cleanup ignore Files Cleanroom chatroom impl * Rewrite. * changes * Fix Deadlocks. Start the rooms. Fix styling. Random things. Bookmarklet. * Subset data * Rm file * Simplify User. Just Comparable. * Remove method.
97 lines
2.5 KiB
Go
97 lines
2.5 KiB
Go
package via
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import (
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"fmt"
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"strconv"
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"github.com/go-via/via/h"
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)
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// actionTrigger represents a trigger to an event handler fn
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type actionTrigger struct {
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id string
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}
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// ActionTriggerOption configures behavior of action triggers
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type ActionTriggerOption interface {
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apply(*triggerOpts)
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}
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type triggerOpts struct {
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hasSignal bool
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signalID string
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value string
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}
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type withSignalOpt struct {
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signalID string
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value string
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}
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func (o withSignalOpt) apply(opts *triggerOpts) {
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opts.hasSignal = true
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opts.signalID = o.signalID
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opts.value = o.value
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}
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// WithSignal sets a signal value before triggering the action.
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func WithSignal(sig *signal, value string) ActionTriggerOption {
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return withSignalOpt{
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signalID: sig.ID(),
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value: fmt.Sprintf("'%s'", value),
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}
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}
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// WithSignalInt sets a signal to an int value before triggering the action.
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func WithSignalInt(sig *signal, value int) ActionTriggerOption {
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return withSignalOpt{
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signalID: sig.ID(),
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value: strconv.Itoa(value),
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}
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}
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func buildOnExpr(base string, opts *triggerOpts) string {
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if !opts.hasSignal {
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return base
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}
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return fmt.Sprintf("$%s=%s;%s", opts.signalID, opts.value, base)
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}
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func applyOptions(options ...ActionTriggerOption) triggerOpts {
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var opts triggerOpts
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for _, opt := range options {
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opt.apply(&opts)
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}
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return opts
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}
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func actionURL(id string) string {
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return fmt.Sprintf("@get('/_action/%s')", id)
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}
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// OnClick returns a via.h DOM attribute that triggers on click. It can be added
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// to element nodes in a view.
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func (a *actionTrigger) OnClick(options ...ActionTriggerOption) h.H {
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opts := applyOptions(options...)
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return h.Data("on:click", buildOnExpr(actionURL(a.id), &opts))
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}
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// OnChange returns a via.h DOM attribute that triggers on input change. It can be added
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// to element nodes in a view.
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func (a *actionTrigger) OnChange(options ...ActionTriggerOption) h.H {
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opts := applyOptions(options...)
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return h.Data("on:change__debounce.200ms", buildOnExpr(actionURL(a.id), &opts))
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}
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// OnEnterKey returns a via.h DOM attribute that triggers when a key is pressed.
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// key: optional, see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key
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// Example: OnKeyDown("Enter")
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func (a *actionTrigger) OnKeyDown(key string, options ...ActionTriggerOption) h.H {
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opts := applyOptions(options...)
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var condition string
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if key != "" {
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condition = fmt.Sprintf("evt.key==='%s' &&", key)
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}
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return h.Data("on:keydown", fmt.Sprintf("%s%s", condition, buildOnExpr(actionURL(a.id), &opts)))
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}
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