50 lines
1.4 KiB
JavaScript
Executable File
50 lines
1.4 KiB
JavaScript
Executable File
/*
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Copyright (C) 2021 Qijun Gu
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This file is part of Screenshare.
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Screenshare is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Screenshare is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Screenshare. If not, see <https://www.gnu.org/licenses/>.
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*/
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var frameinterval = 500; // 200 milliseconds means 5 frames per second
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var frameerrcount = 0;
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var screenfeedtimeout = null;
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$(function() {
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screenfeed();
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});
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function screenfeed() {
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if (frameerrcount < 0) return;
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$.post('../screenfeed/')
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.then(function(r){
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ret = $.parseJSON(r);
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$('img.livescreen').attr('src', 'data:image/jpeg;base64,'+ret[1]);
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frameerrcount = 0;
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screenfeedtimeout = setTimeout(screenfeed, frameinterval)
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}, function(r) {
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if (frameerrcount < 0) return;
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frameerrcount++;
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screenfeedtimeout = setTimeout(screenfeed, frameinterval)
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if (frameerrcount > 20) {
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clearTimeout(screenfeedtimeout);
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frameerrcount = -1;
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$.alert({
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title: 'Error!',
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content: 'Lost screen from server. Refresh this page later...'
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});
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}
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});
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}
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