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Support for (future) Control Panel animation

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This commit is contained in:
Jeff Parsons 2015-01-23 14:43:32 -08:00 • committed by jeffpar
commit 2e729f9179
19 changed files with 329 additions and 196 deletions
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23
modules/pcjs/lib/disk.js
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@ -889,8 +889,8 @@ Disk.prototype.doneLoad = function(sDiskFile, sDiskData, nErrorCode, sDiskPath)
* "logical" sector numbers for volume-relative block addresses (aka LBAs or Logical Block Addresses), and
* 0-based "physical" sector numbers for disk-relative block addresses (aka PBAs or Physical Block Addresses).
*
* Our use of the term LBA differs from the popular usage of the term, in which disk controllers use LBA
* numbers instead of CHS values. In our world, those controllers would actually be using PBA numbers.
* Also, our use of the term LBA differs from that of more modern disk controllers; in the pre-modern world
* of PCjs, what we call PBA numbers are what those controllers would call LBA numbers.
*
* @this {Disk}
*/
@ -905,6 +905,19 @@ Disk.prototype.buildFileTable = function()
var cbDisk = this.nCylinders * this.nHeads * this.nSectors * this.cbSector;
/*
* At this point, if this is a remote disk, you may see some warning messages in your browser's console,
* like this message from Chrome:
*
* "Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects
* to the end user's experience. For more help, check http://xhr.spec.whatwg.org/."
*
* This is because I was lazy and made the buildFileTable() worker function getSector() use the synchronous
* form of seek(). For development purposes, that was fine, but... TODO: Eventually change buildFileTable()
* to use async I/O.
*/
if (this.fRemote) this.log("ignore synchronous XMLHttpRequest warnings here for now....");
var sectorBoot = this.getSector(0);
if (!sectorBoot) {
if (DEBUG && this.messageEnabled()) {
@ -1279,9 +1292,9 @@ Disk.prototype.updateSector = function(file, pba, off)
/**
* getSectorData(sector, off, len)
*
* NOTE: Yes, this function is not the most efficient way to read a byte/word/dword value from within
* a sector, but given the different states a sector may be in, it's certainly the simplest and safest,
* and it's not clear that we need to be superfast anyway.
* NOTE: Yes, this function is not the most efficient way to read a byte/word/dword value from within a sector,
* but given the different states a sector may be in, it's certainly the simplest and safest, and since this is
* only used by buildFileTable() and its progeny, it's not clear that we need to be superfast anyway.
*
* @this {Disk}
* @param {Object} sector