b2a199100e
Adds a 'fade' param for dismissable alerts that if true will cause alerts to fade out and disappear after 5s. Setting it to false will keep alerts onscreen until they're manually dismissed by the user. Change-Id: If16b634c564e7ab906ecea33fd33128374570010
74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
/*
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
https://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package webservice
|
|
|
|
import "time"
|
|
|
|
// AlertLevel holds a string that determines the type of alert shown in the UI
|
|
type AlertLevel string
|
|
|
|
const (
|
|
// Info corresponds to a blue alert message in the UI
|
|
Info AlertLevel = "info"
|
|
// Warning corresponds to an orange alert message in the UI
|
|
Warning AlertLevel = "warning"
|
|
// Error corresponds to a red alert message in the UI
|
|
Error AlertLevel = "danger"
|
|
// Success corresponds to a green alert message in the UI
|
|
Success AlertLevel = "success"
|
|
)
|
|
|
|
// Alert basic structure to hold alert messages to pass to the UI
|
|
type Alert struct {
|
|
Level AlertLevel
|
|
Message string
|
|
Fade bool
|
|
}
|
|
|
|
// Alerts serves as a queue to hold alerts to be sent to the UI,
|
|
// which will generally only be needed if any errors are encountered
|
|
// during startup before the websocket has been established
|
|
var Alerts []Alert
|
|
|
|
// SendAlert tests for the existence of an established websocket
|
|
// and either sends the message over the websocket, or adds it
|
|
// to the Alerts queue to be sent later
|
|
func SendAlert(lvl AlertLevel, msg string, fade bool) {
|
|
alert := Alert{
|
|
Level: lvl,
|
|
Message: msg,
|
|
Fade: fade,
|
|
}
|
|
|
|
if ws == nil {
|
|
Alerts = append(Alerts, alert)
|
|
} else {
|
|
sendAlertMessage(alert)
|
|
}
|
|
}
|
|
|
|
func sendAlertMessage(a Alert) {
|
|
if err := ws.WriteJSON(map[string]interface{}{
|
|
"type": "electron",
|
|
"component": "alert",
|
|
"level": a.Level,
|
|
"message": a.Message,
|
|
"fade": a.Fade,
|
|
"timestamp": time.Now().UnixNano() / 1000000,
|
|
}); err != nil {
|
|
onError(err)
|
|
}
|
|
}
|