mirror of
https://github.com/YosysHQ/yosys
synced 2025-10-31 19:52:31 +00:00
312 lines
8 KiB
JavaScript
312 lines
8 KiB
JavaScript
var YosysJS = new function() {
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this.script_element = document.currentScript;
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this.viz_element = undefined;
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this.viz_ready = true;
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this.url_prefix = this.script_element.src.replace(/[^/]+$/, '')
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this.load_viz = function() {
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if (this.viz_element)
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return;
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this.viz_element = document.createElement('iframe')
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this.viz_element.style.display = 'none'
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document.body.appendChild(this.viz_element);
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this.viz_element.contentWindow.document.open();
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this.viz_element.contentWindow.document.write('<script type="text/javascript" onload="viz_ready = true;" src="' + this.url_prefix + 'viz.js"></' + 'script>');
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this.viz_element.contentWindow.document.close();
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var that = this;
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function check_viz_ready() {
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if (that.viz_element.contentWindow.viz_ready) {
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console.log("YosysJS: Successfully loaded Viz.");
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that.viz_ready = true;
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} else
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window.setTimeout(check_viz_ready, 100);
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}
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this.viz_ready = false;
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window.setTimeout(check_viz_ready, 100);
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}
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this.dot_to_svg = function(dot_text) {
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return this.viz_element.contentWindow.Viz(dot_text, "svg");
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}
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this.dot_into_svg = function(dot_text, svg_element) {
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if (typeof(svg_element) == 'string' && svg_element != "")
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svg_element = document.getElementById(svg_element);
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svg_element.innerHTML = this.dot_to_svg(dot_text);
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c = svg_element.firstChild;
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while (c) {
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if (c.tagName == 'svg') {
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while (c.firstChild)
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svg_element.appendChild(c.firstChild);
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svg_element.setAttribute('viewBox', c.getAttribute('viewBox'));
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// svg_element.removeChild(c);
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break;
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}
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c = c.nextSibling;
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}
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}
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this.create = function(reference_element, on_ready) {
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var ys = new Object();
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ys.YosysJS = this;
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ys.init_script = "";
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ys.ready = false;
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ys.verbose = false;
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ys.logprint = false;
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ys.echo = false;
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ys.errmsg = "";
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if (typeof(reference_element) == 'string' && reference_element != "")
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reference_element = document.getElementById(reference_element);
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if (reference_element) {
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if (reference_element.tagName == 'textarea')
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ys.init_script = reference_element.value;
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if (reference_element.tagName == 'iframe') {
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ys.iframe_element = reference_element;
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} else {
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ys.iframe_element = document.createElement('iframe');
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ys.iframe_element.id = reference_element.id;
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for (i in reference_element.style)
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ys.iframe_element.style[i] = reference_element.style[i];
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reference_element.parentNode.insertBefore(ys.iframe_element, reference_element);
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reference_element.parentNode.removeChild(reference_element);
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}
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} else {
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ys.iframe_element = document.createElement('iframe');
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ys.iframe_element.style.display = 'none';
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document.body.appendChild(ys.iframe_element);
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}
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ys.print_buffer = "";
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ys.last_line_empty = false;
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ys.got_normal_log_message = false;
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ys.window = ys.iframe_element.contentWindow;
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var doc = ys.window.document;
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var mod = ys.window.Module = {
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print: function(text) {
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if (typeof(text) == 'number')
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return;
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ys.print_buffer += text + "\n";
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ys.got_normal_log_message = true;
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if (ys.logprint)
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console.log(text);
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if (ys.verbose) {
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ys.last_line_empty = text == "";
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if (text == "") {
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span = doc.createElement('br');
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} else {
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span = doc.createElement('span');
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span.textContent = text + "\n";
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span.style.fontFamily = 'monospace';
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span.style.whiteSpace = 'pre';
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}
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doc.firstChild.appendChild(span);
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if (doc.body)
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ys.window.scrollTo(0, doc.body.scrollHeight);
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else
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ys.window.scrollBy(0, 100);
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}
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ys.ready = true;
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},
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printErr: function(text) {
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if (typeof(text) == 'number')
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return;
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if (ys.logprint)
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console.log(text);
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if (ys.got_normal_log_message) {
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ys.print_buffer += text + "\n";
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ys.last_line_empty = text == "";
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if (text == "") {
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span = doc.createElement('br');
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} else {
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span = doc.createElement('span');
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span.textContent = text + "\n";
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span.style.fontFamily = 'monospace';
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span.style.whiteSpace = 'pre';
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span.style.color = 'red';
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}
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doc.firstChild.appendChild(span);
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if (doc.body)
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ys.window.scrollTo(0, doc.body.scrollHeight);
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else
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ys.window.scrollBy(0, 100);
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} else
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if (!ys.logprint)
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console.log(text);
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},
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};
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ys.write = function(text) {
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ys.print_buffer += text + "\n";
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ys.last_line_empty = text == "";
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span = doc.createElement('span');
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span.textContent = text + "\n";
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span.style.fontFamily = 'monospace';
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span.style.whiteSpace = 'pre';
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doc.firstChild.appendChild(span);
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if (doc.body)
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ys.window.scrollTo(0, doc.body.scrollHeight);
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else
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ys.window.scrollBy(0, 100);
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}
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ys.prompt = function() {
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return mod.ccall('prompt', 'string', [], [])
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}
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ys.run = function(cmd) {
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ys.print_buffer = "";
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if (ys.echo) {
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if (!ys.last_line_empty)
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ys.write("");
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ys.write(ys.prompt() + cmd);
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}
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try {
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mod.ccall('run', '', ['string'], [cmd]);
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} catch (e) {
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ys.errmsg = mod.ccall('errmsg', 'string', [], []);
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}
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return ys.print_buffer;
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}
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ys.read_file = function(filename) {
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try {
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return ys.window.FS.readFile(filename, {encoding: 'utf8'});
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} catch (e) {
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return "";
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}
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}
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ys.write_file = function(filename, text) {
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return ys.window.FS.writeFile(filename, text, {encoding: 'utf8'});
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}
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ys.read_dir = function(dirname) {
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return ys.window.FS.readdir(dirname);
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}
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ys.remove_file = function(filename) {
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try {
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ys.window.FS.unlink(filename);
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} catch (e) { }
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}
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doc.open();
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doc.write('<script type="text/javascript" src="' + this.url_prefix + 'yosys.js"></' + 'script>');
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doc.close();
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if (on_ready || ys.init_script) {
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function check_ready() {
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if (ys.ready && ys.YosysJS.viz_ready) {
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if (ys.init_script) {
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ys.write_file("/script.ys", ys.init_script);
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ys.run("script /script.ys");
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}
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if (on_ready)
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on_ready(ys);
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} else
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window.setTimeout(check_ready, 100);
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}
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window.setTimeout(check_ready, 100);
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}
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return ys;
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}
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this.create_worker = function(on_ready) {
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var ys = new Object();
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ys.YosysJS = this;
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ys.worker = new Worker(this.url_prefix + 'yosyswrk.js');
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ys.callback_idx = 1;
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ys.callback_cache = {};
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ys.errmsg = "";
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ys.callback_cache[0] = on_ready;
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on_ready = null;
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ys.worker.onmessage = function(e) {
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var response = e.data[0];
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var callback = ys.callback_cache[response.idx];
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delete ys.callback_cache[response.idx];
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if ("errmsg" in response) ys.errmsg = response.errmsg;
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if (callback) callback.apply(null, response.args);
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}
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ys.run = function(cmd, callback) {
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var request = {
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"idx": ys.callback_idx,
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"mode": "run",
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"cmd": cmd
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};
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ys.callback_cache[ys.callback_idx++] = callback;
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ys.worker.postMessage([request]);
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}
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ys.read_file = function(filename, callback) {
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var request = {
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"idx": ys.callback_idx,
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"mode": "read_file",
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"filename": filename
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};
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ys.callback_cache[ys.callback_idx++] = callback;
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ys.worker.postMessage([request]);
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}
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ys.write_file = function(filename, text, callback) {
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var request = {
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"idx": ys.callback_idx,
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"mode": "write_file",
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"filename": filename,
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"text": text
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};
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ys.callback_cache[ys.callback_idx++] = callback;
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ys.worker.postMessage([request]);
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}
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ys.read_dir = function(dirname, callback) {
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var request = {
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"idx": ys.callback_idx,
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"mode": "read_dir",
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"dirname": dirname
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};
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ys.callback_cache[ys.callback_idx++] = callback;
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ys.worker.postMessage([request]);
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}
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ys.remove_file = function(filename, callback) {
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var request = {
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"idx": ys.callback_idx,
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"mode": "remove_file",
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"filename": filename
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};
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ys.callback_cache[ys.callback_idx++] = callback;
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ys.worker.postMessage([request]);
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}
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ys.verbose = function(value, callback) {
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var request = {
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"idx": ys.callback_idx,
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"mode": "verbose",
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"value": value
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};
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ys.callback_cache[ys.callback_idx++] = callback;
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ys.worker.postMessage([request]);
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}
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return ys;
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}
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}
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