96 lines
2.8 KiB
JavaScript
96 lines
2.8 KiB
JavaScript
/**
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* OpenSlides projector functions
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*
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* :copyright: 2011–2013 by OpenSlides team, see AUTHORS.
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* :license: GNU GPL, see LICENSE for more details.
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*/
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$(document).ready(function() {
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if ($('#content.reload').length > 0) {
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updater.start();
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}
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});
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var projector = {
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_loaded_files: {},
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load_file: function(src) {
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if (projector._loaded_files[src] === undefined) {
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projector._loaded_files[src] = document.createElement('script');
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projector._loaded_files[src].setAttribute("type","text/javascript");
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projector._loaded_files[src].setAttribute("src", src);
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$('head').append(projector._loaded_files[src]);
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}
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},
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scroll: function(value) {
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$('#content').css('margin-top', -10 * value + 'em');
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},
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scale: function(value) {
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$('#content').css('font-size', 100 + 20 * value + '%');
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},
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get_server_time: function () {
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var date = new Date();
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date.setTime(date.getTime() + projector.server_time_offset);
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return date;
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},
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update_data: function(data) {
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$.each(data, function (key, value) {
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if (key === 'load_file')
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projector.load_file(value);
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else if (key === 'server_time') {
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var local_time = Date.parse(new Date().toUTCString());
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projector.server_time_offset = local_time - value * 1000;
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} else
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projector[key] = value;
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});
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}
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};
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var updater = {
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socket: null,
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start: function() {
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var url = "http://" + location.host + "/projector/socket";
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updater.socket = new SockJS(url);
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updater.socket.onmessage = function(event) {
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updater.updateProjector(event.data);
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}
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updater.socket.onclose = function() {
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setTimeout('updater.start()', 5000);
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}
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},
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updateProjector: function(data) {
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if (data.content) {
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$('#content').removeClass('fullscreen');
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$('#footer').removeClass('black');
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$('body').removeClass('black');
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$('#content').html(data.content);
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}
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if (data.overlays) {
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$.each(data.overlays, function (key, value) {
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var overlay = $('#overlays #overlay_' + key)
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if (!value)
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overlay.remove();
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else {
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if (overlay.length) {
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overlay.html(value.html)
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} else {
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$('#overlays').append(value.html);
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}
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projector.update_data(value.javascript);
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}
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});
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}
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if (data.calls) {
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$.each(data.calls, function (call, argument) {
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projector[call](argument);
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});
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}
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}
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};
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