discourse/app/assets/javascripts/admin/components/admin-backups-logs.js.es6

74 lines
2.2 KiB
JavaScript

import debounce from "discourse/lib/debounce";
import { renderSpinner } from "discourse/helpers/loading-spinner";
import { escapeExpression } from "discourse/lib/utilities";
import { bufferedRender } from "discourse-common/lib/buffered-render";
import { observes, on } from "ember-addons/ember-computed-decorators";
export default Ember.Component.extend(
bufferedRender({
classNames: ["admin-backups-logs"],
init() {
this._super(...arguments);
this._reset();
},
_reset() {
this.setProperties({ formattedLogs: "", index: 0 });
},
_scrollDown() {
const $div = this.$()[0];
$div.scrollTop = $div.scrollHeight;
},
@on("init")
@observes("logs.[]")
_resetFormattedLogs() {
if (this.get("logs").length === 0) {
this._reset(); // reset the cached logs whenever the model is reset
this.rerenderBuffer();
}
},
@on("init")
@observes("logs.[]")
_updateFormattedLogs: debounce(function() {
const logs = this.get("logs");
if (logs.length === 0) return;
// do the log formatting only once for HELLish performance
let formattedLogs = this.get("formattedLogs");
for (let i = this.get("index"), length = logs.length; i < length; i++) {
const date = logs[i].get("timestamp"),
message = escapeExpression(logs[i].get("message"));
formattedLogs += "[" + date + "] " + message + "\n";
}
// update the formatted logs & cache index
this.setProperties({
formattedLogs: formattedLogs,
index: logs.length
});
// force rerender
this.rerenderBuffer();
Ember.run.scheduleOnce("afterRender", this, this._scrollDown);
}, 150),
buildBuffer(buffer) {
const formattedLogs = this.get("formattedLogs");
if (formattedLogs && formattedLogs.length > 0) {
buffer.push("<pre>");
buffer.push(formattedLogs);
buffer.push("</pre>");
} else {
buffer.push("<p>" + I18n.t("admin.backups.logs.none") + "</p>");
}
// add a loading indicator
if (this.get("status.isOperationRunning")) {
buffer.push(renderSpinner("small"));
}
}
})
);