89 lines
2.6 KiB
Haxe
89 lines
2.6 KiB
Haxe
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/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package neko.vm;
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/**
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Core native User Interface support. This API uses native WIN32 API
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on Windows, Carbon API on OSX, and GTK2 on Linux.
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*/
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class Ui {
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/**
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Tells if the current thread is the main loop thread or not.
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The main loop thread is the one in which the first "ui"
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library primitive has been loaded.
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**/
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public static function isMainThread() {
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return _is_main_thread();
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}
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/**
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Starts the native UI event loop. This method can only be called
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from the main thread.
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**/
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public static function loop() {
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_loop();
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}
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/**
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Stop the native UI event loop. This method can only be called
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from the main thread.
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**/
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public static function stopLoop() {
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_sync(_stop_loop);
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}
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/**
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Queue a method call callb to be executed by the main thread while
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running the UI event loop. This can be used to perform UI updates
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in the UI thread using results processed by another thread.
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**/
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public static function sync(f:Void->Void) {
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_sync(f);
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}
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public static function syncResult<T>(f:Void->T):T {
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if (isMainThread())
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return f();
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var l = new Lock();
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var tmp = null;
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var exc = null;
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_sync(function() {
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try {
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tmp = f();
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} catch (e:Dynamic) {
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exc = {v: e};
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}
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l.release();
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});
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l.wait();
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if (exc != null)
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throw exc.v;
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return tmp;
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}
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static var _is_main_thread = neko.Lib.load("ui", "ui_is_main", 0);
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static var _loop = neko.Lib.load("ui", "ui_loop", 0);
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static var _stop_loop = neko.Lib.load("ui", "ui_stop_loop", 0);
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static var _sync = neko.Lib.load("ui", "ui_sync", 1);
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}
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