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Merge branch 'keyboard' of https://github.com/CendioOssman/noVNC

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This commit is contained in:
Pierre Ossman
2017-05-04 12:18:55 +02:00
parent 1c5702b0b5 5a3e9d3da8
commit 545442afc3
18 changed files with 2445 additions and 1886 deletions
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128
utils/genkeysymdef.js Executable file
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#!/usr/bin/env node
/*
* genkeysymdef: X11 keysymdef.h to JavaScript converter
* Copyright 2013 jalf <git@jalf.dk>
* Copyright 2017 Pierre Ossman for Cendio AB
* Licensed under MPL 2.0 (see LICENSE.txt)
*/
"use strict";
var fs = require('fs');
var show_help = process.argv.length === 2;
var filename;
for (var i = 2; i < process.argv.length; ++i) {
switch (process.argv[i]) {
case "--help":
case "-h":
show_help = true;
break;
case "--file":
case "-f":
default:
filename = process.argv[i];
}
}
if (!filename) {
show_help = true;
console.log("Error: No filename specified\n");
}
if (show_help) {
console.log("Parses a *nix keysymdef.h to generate Unicode code point mappings");
console.log("Usage: node parse.js [options] filename:");
console.log(" -h [ --help ] Produce this help message");
console.log(" filename The keysymdef.h file to parse");
return;
}
var buf = fs.readFileSync(filename);
var str = buf.toString('utf8');
var re = /^\#define XK_([a-zA-Z_0-9]+)\s+0x([0-9a-fA-F]+)\s*(\/\*\s*(.*)\s*\*\/)?\s*$/m;
var arr = str.split('\n');
var codepoints = {};
for (var i = 0; i < arr.length; ++i) {
var result = re.exec(arr[i]);
if (result){
var keyname = result[1];
var keysym = parseInt(result[2], 16);
var remainder = result[3];
var unicodeRes = /U\+([0-9a-fA-F]+)/.exec(remainder);
if (unicodeRes) {
var unicode = parseInt(unicodeRes[1], 16);
// The first entry is the preferred one
if (!codepoints[unicode]){
codepoints[unicode] = { keysym: keysym, name: keyname };
}
}
}
}
var out =
"/*\n" +
" * Mapping from Unicode codepoints to X11/RFB keysyms\n" +
" *\n" +
" * This file was automatically generated from keysymdef.h\n" +
" * DO NOT EDIT!\n" +
" */\n" +
"\n" +
"/* Functions at the bottom */\n" +
"\n" +
"var codepoints = {\n";
function toHex(num) {
var s = num.toString(16);
if (s.length < 4) {
s = ("0000" + s).slice(-4);
}
return "0x" + s;
};
for (var codepoint in codepoints) {
codepoint = parseInt(codepoint);
// Latin-1?
if ((codepoint >= 0x20) && (codepoint <= 0xff)) {
continue;
}
// Handled by the general Unicode mapping?
if ((codepoint | 0x01000000) === codepoints[codepoint].keysym) {
continue;
}
out += " " + toHex(codepoint) + ": " +
toHex(codepoints[codepoint].keysym) +
", // XK_" + codepoints[codepoint].name + "\n";
}
out +=
"};\n" +
"\n" +
"export default {\n" +
" lookup : function(u) {\n" +
" // Latin-1 is one-to-one mapping\n" +
" if ((u >= 0x20) && (u <= 0xff)) {\n" +
" return u;\n" +
" }\n" +
"\n" +
" // Lookup table (fairly random)\n" +
" var keysym = codepoints[u];\n" +
" if (keysym !== undefined) {\n" +
" return keysym;\n" +
" }\n" +
"\n" +
" // General mapping as final fallback\n" +
" return 0x01000000 | u;\n" +
" },\n" +
"};";
console.log(out);

103
utils/parse.js
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@@ -1,103 +0,0 @@
// Utility to parse keysymdef.h to produce mappings from Unicode codepoints to keysyms
"use strict";
var fs = require('fs');
var show_help = process.argv.length === 2;
var use_keynames = false;
var filename;
for (var i = 2; i < process.argv.length; ++i) {
switch (process.argv[i]) {
case "--help":
case "-h":
show_help = true;
break;
case "--debug-names":
case "-d":
use_keynames = true;
break;
case "--file":
case "-f":
default:
filename = process.argv[i];
}
}
if (!filename) {
show_help = true;
console.log("Error: No filename specified\n");
}
if (show_help) {
console.log("Parses a *nix keysymdef.h to generate Unicode code point mappings");
console.log("Usage: node parse.js [options] filename:");
console.log(" -h [ --help ] Produce this help message");
console.log(" -d [ --debug-names ] Preserve keysym names for debugging (Increases file size by ~40KB)");
console.log(" filename The keysymdef.h file to parse");
return;
}
// Set this to false to omit key names from the generated keysymdef.js
// This reduces the file size by around 40kb, but may hinder debugging
var buf = fs.readFileSync(filename);
var str = buf.toString('utf8');
var re = /^\#define XK_([a-zA-Z_0-9]+)\s+0x([0-9a-fA-F]+)\s*(\/\*\s*(.*)\s*\*\/)?\s*$/m;
var arr = str.split('\n');
var keysyms = {};
var codepoints = {};
for (var i = 0; i < arr.length; ++i) {
var result = re.exec(arr[i]);
if (result){
var keyname = result[1];
var keysym = parseInt(result[2], 16);
var remainder = result[3];
keysyms[keysym] = keyname;
var unicodeRes = /U\+([0-9a-fA-F]+)/.exec(remainder);
if (unicodeRes) {
var unicode = parseInt(unicodeRes[1], 16);
if (!codepoints[unicode]){
codepoints[unicode] = keysym;
}
}
else {
console.log("no unicode codepoint found:", arr[i]);
}
}
else {
console.log("line is not a keysym:", arr[i]);
}
}
var out = "// This file describes mappings from Unicode codepoints to the keysym values\n" +
"// (and optionally, key names) expected by the RFB protocol\n" +
"// How this file was generated:\n" +
"// " + process.argv.join(" ") + "\n" +
"var keysyms = (function(){\n" +
" \"use strict\";\n" +
" var keynames = {keysyms};\n" +
" var codepoints = {codepoints};\n" +
"\n" +
" function lookup(k) { return k ? {keysym: k, keyname: keynames ? keynames[k] : k} : undefined; }\n" +
" return {\n" +
" fromUnicode : function(u) {\n" +
" var keysym = codepoints[u];\n" +
" if (keysym === undefined) {\n" +
" keysym = 0x01000000 | u;\n" +
" }\n" +
" return lookup(keysym);\n" +
" },\n" +
" lookup : lookup\n" +
" };\n" +
"})();\n";
out = out.replace('{keysyms}', use_keynames ? JSON.stringify(keysyms) : "null");
out = out.replace('{codepoints}', JSON.stringify(codepoints));
fs.writeFileSync("keysymdef.js", out);