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better startup play/stop handing

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This commit is contained in:
Matt Walsh
2020-09-17 16:34:38 -05:00
parent 36144f9eb1
commit 8f5b10664d
9 changed files with 157 additions and 174 deletions
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16
server/scripts/modules/weatherdisplay.js
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@@ -225,6 +225,10 @@ class WeatherDisplay {
return document.getElementById(this.elemId+'Canvas').offsetParent !== null;
}
isEnabled() {
return true;
}
// navigation timings
// totalScreens = total number of screens that are available
// baseDelay = ms to delay before re-evaluating screenIndex
@@ -246,7 +250,7 @@ class WeatherDisplay {
this.updateScreenFromBaseCount();
}
updateScreenFromBaseCount() {
async updateScreenFromBaseCount() {
// get the next screen index
let nextScreenIndex = this.screenIndexFromBaseCount();
@@ -261,11 +265,17 @@ class WeatherDisplay {
// test for no change and exit early
if (nextScreenIndex === this.screenIndex) return;
this.screenIndex = nextScreenIndex;
// test for -1 (no screen displayed yet)
if (nextScreenIndex === -1) {
this.screenIndex = 0;
} else {
this.screenIndex = nextScreenIndex;
}
// call the appropriate screen index change method
if (!this.screenIndexChange) {
this.drawCanvas();
await this.drawCanvas();
this.showCanvas();
} else {
this.screenIndexChange(this.screenIndex);
}