path: root/src/library_browser.js

//"use strict";

// Utilities for browser environments
mergeInto(LibraryManager.library, {
  $Browser__deps: ['$PATH'],
  $Browser__postset: 'Module["requestFullScreen"] = function Module_requestFullScreen(lockPointer, resizeCanvas) { Browser.requestFullScreen(lockPointer, resizeCanvas) };\n' + // exports
                     'Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) { Browser.requestAnimationFrame(func) };\n' +
                     'Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) };\n' +
                     'Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.pause() };\n' +
                     'Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop.resume() };\n' +
                     'Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia() }',
  $Browser: {
    mainLoop: {
      scheduler: null,
      method: '',
      shouldPause: false,
      paused: false,
      queue: [],
      pause: function() {
        Browser.mainLoop.shouldPause = true;
      },
      resume: function() {
        if (Browser.mainLoop.paused) {
          Browser.mainLoop.paused = false;
          Browser.mainLoop.scheduler();
        }
        Browser.mainLoop.shouldPause = false;
      },
      updateStatus: function() {
        if (Module['setStatus']) {
          var message = Module['statusMessage'] || 'Please wait...';
          var remaining = Browser.mainLoop.remainingBlockers;
          var expected = Browser.mainLoop.expectedBlockers;
          if (remaining) {
            if (remaining < expected) {
              Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')');
            } else {
              Module['setStatus'](message);
            }
          } else {
            Module['setStatus']('');
          }
        }
      }
    },
    isFullScreen: false,
    pointerLock: false,
    moduleContextCreatedCallbacks: [],
    workers: [],

    init: function() {
      if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers

      if (Browser.initted || ENVIRONMENT_IS_WORKER) return;
      Browser.initted = true;

      try {
        new Blob();
        Browser.hasBlobConstructor = true;
      } catch(e) {
        Browser.hasBlobConstructor = false;
        console.log("warning: no blob constructor, cannot create blobs with mimetypes");
      }
      Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? console.log("warning: no BlobBuilder") : null));
      Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined;
      if (!Module.noImageDecoding && typeof Browser.URLObject === 'undefined') {
        console.log("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available.");