[gnome-sound-recorder] waveform: load recording peaks in row's construct

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit fc6e50573d7252ac29a7ed7bc4c65b5a59b57073
Author: Kavan Mevada <kavanmevada gmail com>
Date:   Sat Aug 15 12:28:36 2020 +0530

    waveform: load recording peaks in row's construct

 src/recorder.js  | 10 +++++-----
 src/recording.js |  4 +---
 src/row.js       | 12 +++++++++---
 3 files changed, 15 insertions(+), 11 deletions(-)
---
diff --git a/src/recorder.js b/src/recorder.js
index d50bf74..7cbb1c0 100644
--- a/src/recorder.js
+++ b/src/recorder.js
@@ -69,7 +69,7 @@ var Recorder = new GObject.registerClass({
     },
 }, class Recorder extends GObject.Object {
     _init() {
-        this.peaks = [];
+        this._peaks = [];
         super._init({});
 
         let srcElement, audioConvert, caps;
@@ -100,7 +100,6 @@ var Recorder = new GObject.registerClass({
     }
 
     start() {
-        this.peaks.length = 0;
         let index = 1;
 
         do {
@@ -157,9 +156,10 @@ var Recorder = new GObject.registerClass({
         }
 
 
-        if (this.file && this.file.query_exists(null) && this.peaks.length > 0) {
+        if (this.file && this.file.query_exists(null) && this._peaks.length > 0) {
             const recording = new Recording(this.file);
-            recording.peaks = this.peaks;
+            recording.peaks = this._peaks;
+            this._peaks.length = 0;
             return recording;
         }
 
@@ -233,7 +233,7 @@ var Recorder = new GObject.registerClass({
             peak = 0;
 
         this._current_peak = Math.pow(10, peak / 20);
-        this.peaks.push(this._current_peak);
+        this._peaks.push(this._current_peak);
         this.notify('current-peak');
     }
 
diff --git a/src/recording.js b/src/recording.js
index 9183331..273d2fe 100644
--- a/src/recording.js
+++ b/src/recording.js
@@ -34,8 +34,6 @@ var Recording = new GObject.registerClass({
         this._timeModified = GLib.DateTime.new_from_unix_local(timeModified);
         this._timeCreated = GLib.DateTime.new_from_unix_local(timeCreated);
 
-        this.readPeaks();
-
         var discoverer = new GstPbutils.Discoverer();
         discoverer.start();
         discoverer.connect('discovered', (_discoverer, audioInfo) => {
@@ -114,7 +112,7 @@ var Recording = new GObject.registerClass({
         return CacheDir.get_child(`${this.name}_data`);
     }
 
-    readPeaks() {
+    loadPeaks() {
         if (this.waveformCache.query_exists(null)) {
             this.waveformCache.load_bytes_async(null, (obj, res) => {
                 const bytes = obj.load_bytes_finish(res)[0];
diff --git a/src/row.js b/src/row.js
index 9a8b2fb..f341a65 100644
--- a/src/row.js
+++ b/src/row.js
@@ -40,6 +40,12 @@ var Row = GObject.registerClass({
             margin_right: 12,
         }, WaveType.PLAYER);
         this._waveformStack.add_named(this.waveform, 'wave');
+        if (this._recording._peaks.length > 0) {
+            this.waveform.peaks = this._recording.peaks;
+            this._waveformStack.visible_child_name = 'wave';
+        } else {
+            this._recording.loadPeaks();
+        }
 
         recording.bind_property('name', this._name, 'label', GObject.BindingFlags.SYNC_CREATE | 
GObject.BindingFlags.DEFAULT);
         recording.bind_property('name', this._entry, 'text', GObject.BindingFlags.SYNC_CREATE | 
GObject.BindingFlags.DEFAULT);
@@ -88,10 +94,10 @@ var Row = GObject.registerClass({
         else
             this._date.label = displayDateTime(recording.timeModified);
 
-        this.waveform.peaks = this._recording.peaks;
-        this._recording.connect('peaks-updated', _ => {
+
+        this._recording.connect('peaks-updated', _recording => {
             this._waveformStack.visible_child_name = 'wave';
-            this.waveform.peaks = this._recording.peaks;
+            this.waveform.peaks = _recording.peaks;
         });
 
         this._recording.connect('peaks-loading', _ => {