ntopng/http_src/vue/chart.vue
2025-05-19 16:34:59 +02:00

193 lines
6.4 KiB
Vue

<!-- (C) 2022 - ntop.org -->
<template>
<div style="width:100%" ref="chart"></div>
</template>
<script>
import { DEFINED_TOOLTIP } from "../components/widget/widgets";
import { ntopng_utility, ntopng_url_manager, ntopng_events_manager } from "../services/context/ntopng_globals_services";
export default {
components: {
},
props: {
id: String,
chart_type: String,
register_on_status_change: Boolean,
not_emit_global_status_update: Boolean,
base_url_request: String,
get_params_url_request: Function,
get_custom_chart_options: Function,
map_chart_options: Function,
min_time_interval_id: String,
round_time: Boolean, //if min_time_interval_id != null round time by min_time_interval_id
},
emits: ["apply", "hidden", "showed", "chart_reloaded", "zoom"],
/** This method is the first method of the component called, it's called before html template creation. */
created() {
},
beforeUnmount() {
this.chart.destroyChart();
},
data() {
return {
chart: null,
chart_options: null,
from_zoom: false,
//i18n: (t) => i18n(t),
};
},
/** This method is the first method called after html template creation. */
async mounted() {
await this.init();
ntopng_sync.ready(this.$props["id"]);
},
methods: {
init: async function () {
let status = ntopng_status_manager.get_status();
let url_request = this.get_url_request(status);
if (this.register_on_status_change) {
this.register_status(status);
}
await this.draw_chart(url_request);
},
get_data_uri: async function (options) {
if (this.chart == null) { return null; }
let data_uri = await this.chart.to_data_uri();
return data_uri;
},
download_chart_png: async function (file_name, options) {
if (this.chart == null) { return; }
let data_uri = await this.chart.to_data_uri();
downloadURI(data_uri, file_name);
},
register_status: function (status) {
let url_request = this.get_url_request(status);
ntopng_status_manager.on_status_change(this.id, (new_status) => {
if (this.from_zoom == true) {
this.from_zoom = false;
//return;
}
let new_url_request = this.get_url_request(new_status);
if (new_url_request == url_request) {
url_request = new_url_request;
return;
}
url_request = new_url_request;
this.update_chart(new_url_request);
}, false);
},
get_url_request: function (status) {
let url_params;
if (this.get_params_url_request != null) {
if (status == null) {
status = ntopng_status_manager.get_status();
}
status = {
id: this.$props.id,
...status
}
url_params = this.get_params_url_request(status);
} else {
url_params = ntopng_url_manager.get_url_params();
}
return `${this.base_url_request}?${url_params}`;
},
draw_chart: async function (url_request) {
let chartApex = ntopChartApex;
let chart_type = this.chart_type;
if (chart_type == null) {
chart_type = chartApex.typeChart.TS_STACKED;
}
this.chart = chartApex.newChart(chart_type);
let me = this;
this.chart.registerEvent("beforeZoom", function (chart_context, axis) {
me.on_before_zoom(chart_context, axis);
});
this.chart.registerEvent("zoomed", function (chart_context, axis) {
me.on_zoomed(chart_context, axis);
});
let chart_options = await this.get_chart_options(url_request);
this.chart.drawChart(this.$refs["chart"], chart_options);
},
map_tooltip: async function(options) {
if (options?.tooltip?.y?.formatter) {
options.tooltip.y.formatter = DEFINED_TOOLTIP[options.tooltip.y.formatter]
|| options.tooltip.y.formatter
}
return options;
},
update_chart: async function (url_request) {
if (url_request == null) {
url_request = this.get_url_request();
}
let chart_options = await this.get_chart_options(url_request);
if (chart_options?.series) {
this.update_chart_series(chart_options.series)
} else {
this.chart.updateChart(chart_options);
}
},
update_chart_options: function (chart_options) {
this.chart.updateChart(chart_options);
},
update_chart_series: function (series) {
if (series == null) { return; }
this.chart.updateSeries(series);
},
get_chart_options: async function (url_request) {
let chart_options;
if (this.get_custom_chart_options == null) {
chart_options = await ntopng_utility.http_request(url_request);
} else {
chart_options = await this.get_custom_chart_options(url_request);
}
if (this.map_chart_options != null) {
chart_options = this.map_chart_options(chart_options);
} else {
chart_options = this.map_tooltip(chart_options);
}
this.$emit('chart_reloaded', chart_options);
return chart_options;
},
on_before_zoom: function (chart_context, { xaxis, yaxis }) {
let new_epoch_status = this.get_epoch_from_xaxis_event(xaxis);
if (this.min_time_interval_id != null) {
const min_time_interval = ntopng_utility.get_timeframe_from_timeframe_id(this.min_time_interval_id);
if (new_epoch_status.epoch_end - new_epoch_status.epoch_begin < min_time_interval) {
new_epoch_status.epoch_end = new_epoch_status.epoch_end + min_time_interval;
new_epoch_status.epoch_end = new_epoch_status.epoch_end - (new_epoch_status.epoch_end % min_time_interval);
new_epoch_status.epoch_begin = new_epoch_status.epoch_end - min_time_interval;
}
if (this.round_time == true) {
new_epoch_status.epoch_begin = ntopng_utility.round_time_by_timeframe_id(new_epoch_status.epoch_begin, this.min_time_interval_id);
new_epoch_status.epoch_end = ntopng_utility.round_time_by_timeframe_id(new_epoch_status.epoch_end, this.min_time_interval_id);
}
xaxis.min = new_epoch_status.epoch_begin * 1000;
xaxis.max = new_epoch_status.epoch_end * 1000;
}
return xaxis;
},
on_zoomed: function (chart_context, { xaxis, yaxis }) {
this.from_zoom = true;
const new_epoch_status = this.get_epoch_from_xaxis_event(xaxis);
// the timestamps are in milliseconds, convert them into seconds
if (!this.not_emit_global_status_update) {
ntopng_events_manager.emit_event(ntopng_events.EPOCH_CHANGE, new_epoch_status, this.id);
}
this.$emit('zoom', new_epoch_status);
},
get_epoch_from_xaxis_event: function (xaxis) {
const begin = moment(xaxis.min);
const end = moment(xaxis.max);
let new_epoch_status = { epoch_begin: Number.parseInt(begin.unix()), epoch_end: Number.parseInt(end.unix()) };
return new_epoch_status;
}
},
};
</script>
<style></style>