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function Stream() {
// var self = this;
/********************************************************************************/
var __prev_state = false;
var __quality = 10;
var __normal_size = {width: 640, height: 480};
var __size_factor = 1;
var __init__ = function() {
$("stream-led").title = "Stream inactive";
var quality = 10;
$("stream-quality-select").innerHTML = "";
for (; quality <= 100; quality += 10) {
$("stream-quality-select").innerHTML += "<option value=\"" + quality + "\">" + quality + "%</option>";
}
tools.setOnClick($("stream-screenshot-button"), __clickScreenshotButton);
$("stream-quality-select").onchange = __changeQuality;
$("stream-size-slider").oninput = __resize;
$("stream-size-slider").onchange = __resize;
tools.setOnClick($("stream-reset-button"), __clickResetButton);
__startPoller();
};
/********************************************************************************/
// XXX: In current implementation we don't need this event because Stream() has own state poller
var __startPoller = function() {
var http = tools.makeRequest("GET", "/streamer/ping", function() {
if (http.readyState === 4) {
var response = (http.status === 200 ? JSON.parse(http.responseText) : null);
if (http.status !== 200) {
tools.info("Refreshing stream ...");
__prev_state = false;
$("stream-image").className = "stream-image-inactive";
$("stream-box").classList.add("stream-box-inactive");
$("stream-led").className = "led-off";
$("stream-led").title = "Stream inactive";
$("stream-screenshot-button").disabled = true;
$("stream-quality-select").disabled = true;
$("stream-reset-button").disabled = true;
__updateStreamHeader(false);
} else if (http.status === 200) {
if (__prev_state) {
if (__normal_size != response.stream.resolution) {
__normal_size = response.stream.resolution;
__applySizeFactor();
}
} else {
__normal_size = response.stream.resolution;
__refreshImage();
__prev_state = true;
$("stream-image").className = "stream-image-active";
$("stream-box").classList.remove("stream-box-inactive");
$("stream-led").className = "led-on";
$("stream-led").title = "Stream is active";
$("stream-screenshot-button").disabled = false;
$("stream-quality-select").disabled = false;
$("stream-reset-button").disabled = false;
}
__updateStreamHeader(true);
}
}
});
setTimeout(__startPoller, 1000);
};
var __updateStreamHeader = function(online) {
var el_grab = document.querySelector("#stream-window-header .window-grab");
if (online) {
el_grab.innerHTML = "Stream – " + __normal_size.width + "x" + __normal_size.height;
} else {
el_grab.innerHTML = "Stream – offline";
}
};
var __clickScreenshotButton = function() {
var el_a = document.createElement("a");
el_a.href = "/streamer/snapshot";
el_a.download = "screenshot.jpg";
document.body.appendChild(el_a);
el_a.click();
setTimeout(() => document.body.removeChild(el_a), 0);
};
var __clickResetButton = function() {
$("stream-reset-button").disabled = true;
var http = tools.makeRequest("POST", "/kvmd/streamer/reset", function() {
if (http.readyState === 4) {
if (http.status !== 200) {
ui.error("Can't reset stream:<br>", http.responseText);
}
}
});
};
var __changeQuality = function() {
var quality = parseInt($("stream-quality-select").value);
if (__quality != quality) {
$("stream-quality-select").disabled = true;
var http = tools.makeRequest("POST", "/kvmd/streamer/set_params?quality=" + quality, function() {
if (http.readyState === 4) {
if (http.status !== 200) {
ui.error("Can't configure stream:<br>", http.responseText);
}
}
});
}
};
var __resize = function() {
var percent = $("stream-size-slider").value;
$("stream-size-value").innerHTML = percent + "%";
__size_factor = percent / 100;
__applySizeFactor();
};
var __applySizeFactor = function() {
var el_stream_image = $("stream-image");
el_stream_image.style.width = __normal_size.width * __size_factor + "px";
el_stream_image.style.height = __normal_size.height * __size_factor + "px";
ui.showWindow($("stream-window"), false);
};
var __refreshImage = function() {
var http = tools.makeRequest("GET", "/kvmd/streamer", function() {
if (http.readyState === 4 && http.status === 200) {
var result = JSON.parse(http.responseText).result;
if (__quality != result.quality) {
tools.info("Quality changed:", result.quality);
document.querySelector("#stream-quality-select [value=\"" + result.quality + "\"]").selected = true;
__quality = result.quality;
}
__applySizeFactor();
$("stream-image").src = "/streamer/stream?t=" + new Date().getTime();
}
});
};
__init__();
}
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