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captions background opacity #42

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captions background opacity #42

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24 changes: 24 additions & 0 deletions views/player/js/captionsDisplay.jade
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,15 @@ script.
}
}

function setCaptionBgOpacityIfExists() {
const storedBgOpacity = localStorage.getItem("storedBgOpacity");

if(storedBgOpacity) {
subtitlesBgOpacity = storedBgOpacity;
$('.plyr__caption').css("background", `rgba(0, 0, 0, ${storedBgOpacity}`);
}
}

function adjustFontSize(direction) {

const currentLineHeight = $('.plyr__caption').css('line-height');
Expand Down Expand Up @@ -65,3 +74,18 @@ script.

subtitlesLineHeight = newLineHeightWithPx;
}

function adjustCaptionsBackground (direction) {
let bgColors, bgAlpha;
const currentBgOpacity = $('.plyr__caption').css('background');
bgColors = currentBgOpacity.split(',');
bgAlpha = bgColors[3] ? bgColors[3].split(')')[0] : bgColors[3] = 1;

const newBgOpacity = parseFloat(bgAlpha) + (direction === 'increase' ? 0.15 : -0.15);

// Saving the new background opacity into localStorage.
localStorage.setItem("storedBgOpacity", newBgOpacity);
subtitlesBgOpacity = newBgOpacity;

$('.plyr__caption').css("background", `rgba(0, 0, 0, ${newBgOpacity}`);
}
13 changes: 12 additions & 1 deletion views/player/player.jade
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,8 @@ block content
button.btn#decreaseSize Subtitle Text Size -
button.btn#increaseLineHeight Subtitle Spacing +
button.btn#decreaseLineHeight Subtitle Spacing -
button.btn#darkBg Subtitle Background Opacity +
button.btn#lightBg Subtitle Background Opacity -
button.btn#showHideControls Hide Text
.downloadLinks
a.btn.startAnotherTranscription(href='/') Start Another Transcription
Expand Down Expand Up @@ -81,7 +83,7 @@ block content
l = console.log;

let player;
let subtitlesFontSize, subtitlesLineHeight;
let subtitlesFontSize, subtitlesLineHeight, subtitlesBgOpacity;

const language = '#{processingData.language}';
const languagesToLoop = !{JSON.stringify(languagesToLoop)};
Expand Down Expand Up @@ -135,6 +137,14 @@ block content
adjustLineHeight('decrease');
});

$('#lightBg').click(function (event) {
adjustCaptionsBackground('decrease');
});

$('#darkBg').click(function (event) {
adjustCaptionsBackground('increase');
});

console.log("ready!");
var controls =
[
Expand Down Expand Up @@ -171,6 +181,7 @@ block content
// without this timeout it doesn't work properly
setTimeout(function(){
setStoredLineHeightAndFontSizeIfExists();
setCaptionBgOpacityIfExists();
}, 200)

});
Expand Down