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[HTML5] Libraries refactor for linting.

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Initial work to make liniting easier.

This includes:
- Rename http_request.js to library_godot_http_request.js.
- Rename externs.js to engine.externs.js.
- New library_godot_runtime.js (GodotRuntime) wraps around emscripten
  functions.
- Refactor of XMLHttpRequest handler in engine/preloader.js.
- Few fixes to bugs spotted by early stage linting.
This commit is contained in:
Fabio Alessandrelli 2020-11-19 16:54:07 +01:00
parent 3a8e1f324f
commit e4cdae3624
16 changed files with 483 additions and 395 deletions
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143
platform/javascript/js/libs/library_godot_http_request.js Normal file
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/*************************************************************************/
/* http_request.js */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
const GodotHTTPRequest = {
$GodotHTTPRequest__deps: ['$GodotRuntime'],
$GodotHTTPRequest: {
requests: [],
getUnusedRequestId: function() {
var idMax = GodotHTTPRequest.requests.length;
for (var potentialId = 0; potentialId < idMax; ++potentialId) {
if (GodotHTTPRequest.requests[potentialId] instanceof XMLHttpRequest) {
continue;
}
return potentialId;
}
GodotHTTPRequest.requests.push(null)
return idMax;
},
setupRequest: function(xhr) {
xhr.responseType = 'arraybuffer';
},
},
godot_xhr_new: function() {
var newId = GodotHTTPRequest.getUnusedRequestId();
GodotHTTPRequest.requests[newId] = new XMLHttpRequest;
GodotHTTPRequest.setupRequest(GodotHTTPRequest.requests[newId]);
return newId;
},
godot_xhr_reset: function(xhrId) {
GodotHTTPRequest.requests[xhrId] = new XMLHttpRequest;
GodotHTTPRequest.setupRequest(GodotHTTPRequest.requests[xhrId]);
},
godot_xhr_free: function(xhrId) {
GodotHTTPRequest.requests[xhrId].abort();
GodotHTTPRequest.requests[xhrId] = null;
},
godot_xhr_open: function(xhrId, method, url, p_user, p_password) {
const user = p_user > 0 ? GodotRuntime.parseString(p_user) : null;
const password = p_password > 0 ? GodotRuntime.parseString(p_password) : null;
GodotHTTPRequest.requests[xhrId].open(GodotRuntime.parseString(method), GodotRuntime.parseString(url), true, user, password);
},
godot_xhr_set_request_header: function(xhrId, header, value) {
GodotHTTPRequest.requests[xhrId].setRequestHeader(GodotRuntime.parseString(header), GodotRuntime.parseString(value));
},
godot_xhr_send_null: function(xhrId) {
GodotHTTPRequest.requests[xhrId].send();
},
godot_xhr_send_string: function(xhrId, strPtr) {
if (!strPtr) {
GodotRuntime.error("Failed to send string per XHR: null pointer");
return;
}
GodotHTTPRequest.requests[xhrId].send(GodotRuntime.parseString(strPtr));
},
godot_xhr_send_data: function(xhrId, ptr, len) {
if (!ptr) {
GodotRuntime.error("Failed to send data per XHR: null pointer");
return;
}
if (len < 0) {
GodotRuntime.error("Failed to send data per XHR: buffer length less than 0");
return;
}
GodotHTTPRequest.requests[xhrId].send(HEAPU8.subarray(ptr, ptr + len));
},
godot_xhr_abort: function(xhrId) {
GodotHTTPRequest.requests[xhrId].abort();
},
godot_xhr_get_status: function(xhrId) {
return GodotHTTPRequest.requests[xhrId].status;
},
godot_xhr_get_ready_state: function(xhrId) {
return GodotHTTPRequest.requests[xhrId].readyState;
},
godot_xhr_get_response_headers_length: function(xhrId) {
var headers = GodotHTTPRequest.requests[xhrId].getAllResponseHeaders();
return headers === null ? 0 : GodotRuntime.strlen(headers);
},
godot_xhr_get_response_headers: function(xhrId, dst, len) {
var str = GodotHTTPRequest.requests[xhrId].getAllResponseHeaders();
if (str === null)
return;
GodotRuntime.stringToHeap(str, dst, len);
},
godot_xhr_get_response_length: function(xhrId) {
var body = GodotHTTPRequest.requests[xhrId].response;
return body === null ? 0 : body.byteLength;
},
godot_xhr_get_response: function(xhrId, dst, len) {
var buf = GodotHTTPRequest.requests[xhrId].response;
if (buf === null)
return;
buf = new Uint8Array(buf).subarray(0, len);
HEAPU8.set(buf, dst);
},
};
autoAddDeps(GodotHTTPRequest, "$GodotHTTPRequest");
mergeInto(LibraryManager.library, GodotHTTPRequest);