forked from amazingfate/loongoffice
e952204b40
...to be used by external code, to mitigate the issue mentioned in the commit message of cccc983eb3f0532dbf7e3edf4477ce63ec3d2795 "Emscripten: Run external code on LO's main thread": "Alternatively, running external code on the browser's main thread rather than on LO's main thread could be more ideal in the sense that the external code would then have access to the browser's document object." On the browser main thread, external JS code can now await a Module.uno_main Promise that provides one port of a MessageChannel. And on the LO main thread, external JS code has access to the other port of that MessageChannel as Module.uno_mainPort. (And the external code is completely free in what onmessage handlers to set up and what form of postMessage calls to use on those two MessagePorts.) Change-Id: Iab6bc7676c744eacb70ddd9f3f80f64e9efd1cf1 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171907 Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de> Tested-by: Jenkins
103 lines
3.9 KiB
JavaScript
103 lines
3.9 KiB
JavaScript
/* -*- Mode: JS; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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'use strict';
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Module.unoTagSymbol = Symbol('unoTag');
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Module.uno_init = new Promise(function (resolve, reject) {
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Module.uno_init$resolve = function() {
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Module.uno = init_unoembind_uno(Module, Module.unoTagSymbol);
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resolve();
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};
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Module.uno_init$reject = reject;
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});
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Module.uno_main = new Promise(function (resolve, reject) {
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Module.uno_main$resolve = resolve;
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Module.uno_main$reject = reject;
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});
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Module.catchUnoException = function(exception) {
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// Rethrow non-C++ exceptions (non-UNO C++ exceptions are mapped to css.uno.RuntimeException in
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// Module.getUnoExceptionFromCxaException):
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if (!(exception instanceof WebAssembly.Exception && exception.is(getCppExceptionTag()))) {
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throw exception;
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}
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const any = Module.getUnoExceptionFromCxaException(
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getCppExceptionThrownObjectFromWebAssemblyException(exception));
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decrementExceptionRefcount(exception);
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return any;
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}
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Module.unoObject = function(interfaces, obj) {
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interfaces = ['com.sun.star.lang.XTypeProvider'].concat(interfaces);
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obj.impl_refcount = 0;
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obj.queryInterface = function(type) {
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for (const i in obj.impl_typemap) {
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if (i === type.toString()) {
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return new Module.uno_Any(
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type,
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Module['uno_Type_' + i.replace(/\./g, '$')].reference(
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obj.impl_interfaces[obj.impl_typemap[i]]));
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}
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}
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return new Module.uno_Any(Module.uno_Type.Void(), undefined);
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};
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obj.acquire = function() { ++obj.impl_refcount; };
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obj.release = function() {
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if (--obj.impl_refcount === 0) {
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for (const i in obj.impl_interfaces) {
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obj.impl_interfaces[i].delete();
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}
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}
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};
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obj.getTypes = function() {
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const types = new Module.uno_Sequence_type(interfaces.length, Module.uno_Sequence.FromSize);
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for (let i = 0; i !== interfaces.length; ++i) {
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types.set(i, Module.uno_Type.Interface(interfaces[i]));
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}
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return types;
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};
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obj.getImplementationId = function() { return new Module.uno_Sequence_byte([]) };
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obj.impl_interfaces = {};
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interfaces.forEach((i) => {
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obj.impl_interfaces[i] = Module['uno_Type_' + i.replace(/\./g, '$')].implement(obj);
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});
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obj.impl_typemap = {};
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const walk = function(td, impl) {
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const name = td.getName();
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if (!Object.hasOwn(obj.impl_typemap, name)) {
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if (td.getTypeClass() != Module.uno.com.sun.star.uno.TypeClass.INTERFACE) {
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throw new Error('not a UNO interface type: ' + name);
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}
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obj.impl_typemap[name] = impl;
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const bases = Module.uno.com.sun.star.reflection.XInterfaceTypeDescription2.query(td)
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.getBaseTypes();
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for (let i = 0; i !== bases.size(); ++i) {
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walk(bases.get(i), impl)
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}
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bases.delete();
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}
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};
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const tdmAny = Module.getUnoComponentContext().getValueByName(
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'/singletons/com.sun.star.reflection.theTypeDescriptionManager');
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const tdm = Module.uno.com.sun.star.container.XHierarchicalNameAccess.query(tdmAny.get());
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interfaces.forEach((i) => {
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const td = tdm.getByHierarchicalName(i);
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walk(Module.uno.com.sun.star.reflection.XTypeDescription.query(td.get()), i);
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td.delete();
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})
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tdmAny.delete();
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return Module.uno.com.sun.star.uno.XInterface.reference(
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obj.impl_interfaces[obj.impl_typemap['com.sun.star.uno.XInterface']]);
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};
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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