Simplify subclassing

modules/c1pjs/lib/computer.js

@@ -98,7 +98,7 @@ C1PComputer.sAppName = APPNAME || "C1Pjs";
 C1PComputer.sAppVer = APPVERSION;
 C1PComputer.sCopyright = "Copyright © 2012-2015 Jeff Parsons <Jeff@pcjs.org>";
 
-Component.subclass(Component, C1PComputer);
+Component.subclass(C1PComputer);
 
 /**
  * @this {C1PComputer}

modules/c1pjs/lib/cpu.js

@@ -469,7 +469,7 @@ function C1PCPU(parmsCPU)
     ];
 }
 
-Component.subclass(Component, C1PCPU);
+Component.subclass(C1PCPU);
 
 /**
  * @this {C1PCPU}

modules/c1pjs/lib/debugger.js

@@ -484,7 +484,7 @@ function C1PDebugger(parmsDbg)
 
 if (DEBUGGER) {
 
-    Component.subclass(Component, C1PDebugger);
+    Component.subclass(C1PDebugger);
 
     /**
      * @this {C1PDebugger}

modules/c1pjs/lib/disk.js

@@ -433,7 +433,7 @@ function C1PDiskController(parmsDC)
     this.reset(true);
 }
 
-Component.subclass(Component, C1PDiskController);
+Component.subclass(C1PDiskController);
 
 /**
  * @this {C1PDiskController}

modules/c1pjs/lib/keyboard.js

@@ -295,7 +295,7 @@ function C1PKeyboard(parmsKbd)
     this.reset();
 }
 
-Component.subclass(Component, C1PKeyboard);
+Component.subclass(C1PKeyboard);
 
 /**
  * @this {C1PKeyboard}

modules/c1pjs/lib/panel.js

@@ -47,7 +47,7 @@ function C1PPanel(parmsPanel)
     this.aFlags.fPowered = false;
 }
 
-Component.subclass(Component, C1PPanel);
+Component.subclass(C1PPanel);
 
 /**
  * The Panel doesn't have any bindings of its own; it passes along all binding requests to

modules/c1pjs/lib/ram.js

@@ -51,7 +51,7 @@ function C1PRAM(parmsRAM)
     Component.call(this, "C1PRAM", parmsRAM);
 }
 
-Component.subclass(Component, C1PRAM);
+Component.subclass(C1PRAM);
 
 /**
  * @this {C1PRAM}

modules/c1pjs/lib/rom.js

@@ -50,6 +50,7 @@
 function C1PROM(parmsROM)
 {
     Component.call(this, "C1PROM", parmsROM);
+
     this.abMem = null;
     this.abImage = null;
     this.cbROM = parmsROM['size'];
@@ -70,7 +71,7 @@ function C1PROM(parmsROM)
     }
 }
 
-Component.subclass(Component, C1PROM);
+Component.subclass(C1PROM);
 
 /**
  * @this {C1PROM}

modules/c1pjs/lib/serial.js

@@ -53,7 +53,7 @@ function C1PSerialPort(parmsSerial)
     this.reset();
 }
 
-Component.subclass(Component, C1PSerialPort);
+Component.subclass(C1PSerialPort);
 
 /**
  * @this {C1PSerialPort}

modules/c1pjs/lib/video.js

@@ -152,7 +152,7 @@ function C1PVideo(parmsVideo, eCanvas, context, imgChars)
     this.addrVideoPort = 0xDE00;        // WARNING: Hard-coded port address -JP
 }
 
-Component.subclass(Component, C1PVideo);
+Component.subclass(C1PVideo);
 
 /**
  * @this {C1PVideo}

modules/pcjs/lib/bus.js

@@ -191,7 +191,7 @@ function Bus(parmsBus, cpu, dbg)
     this.setReady();
 }
 
-Component.subclass(Component, Bus);
+Component.subclass(Bus);
 
 if (BACKTRACK) {
     /*

modules/pcjs/lib/chipset.js

@@ -255,7 +255,7 @@ function ChipSet(parmsChipSet)
     this.setReady();
 }
 
-Component.subclass(Component, ChipSet);
+Component.subclass(ChipSet);
 
 /*
  * Supported model numbers

modules/pcjs/lib/computer.js

@@ -255,7 +255,7 @@ function Computer(parmsComputer, parmsMachine, fSuspended) {
     }
 }
 
-Component.subclass(Component, Computer);
+Component.subclass(Computer);
 
 /*
  * NOTE: 1.01 is the first version to provide limited save/restore support using localStorage.

modules/pcjs/lib/cpu.js

@@ -139,7 +139,7 @@ function CPU(parmsCPU, nCyclesDefault)
     this.setReady();
 }
 
-Component.subclass(Component, CPU);
+Component.subclass(CPU);
 
 /*
  * Constants that control the frequency at which various updates should occur.

modules/pcjs/lib/debugger.js

@@ -192,7 +192,7 @@ function Debugger(parmsDbg)
 
 if (DEBUGGER) {
 
-    Component.subclass(Component, Debugger);
+    Component.subclass(Debugger);
 
     /*
      * Information regarding interrupts of interest (used by messageInt() and others)

modules/pcjs/lib/disk.js

@@ -305,7 +305,7 @@ Disk.REMOTE_WRITE_DELAY = 2000;         // 2-second delay
  */
 Disk.nDisks = 0;
 
-Component.subclass(Component, Disk);
+Component.subclass(Disk);
 
 /**
  * initBus(cmp, bus, cpu, dbg)

modules/pcjs/lib/fdc.js

@@ -187,7 +187,7 @@ function FDC(parmsFDC) {
      */
 }
 
-Component.subclass(Component, FDC);
+Component.subclass(FDC);
 
 FDC.DEFAULT_DRIVE_NAME = "Floppy Drive";
 

modules/pcjs/lib/hdc.js

@@ -117,7 +117,7 @@ function HDC(parmsHDC) {
      */
 }
 
-Component.subclass(Component, HDC);
+Component.subclass(HDC);
 
 /*
  * HDC defaults, in case drive parameters weren't specified

modules/pcjs/lib/keyboard.js

@@ -146,7 +146,7 @@ function Keyboard(parmsKbd)
     this.setReady();
 }
 
-Component.subclass(Component, Keyboard);
+Component.subclass(Keyboard);
 
 /**
  * Alphanumeric and other common (printable) ASCII codes.

modules/pcjs/lib/mouse.js

@@ -158,7 +158,7 @@ function Mouse(parmsMouse)
  *      synchronize with the mouse.
  */
 
-Component.subclass(Component, Mouse);
+Component.subclass(Mouse);
 
 Mouse.ID_SERIAL = 0x4D;
 
@@ -267,9 +267,10 @@ Mouse.prototype.powerUp = function(data, fRepower)
  *
  * @this {Mouse}
  * @param {boolean} fSave
- * @return {Object|boolean}
+ * @param {boolean} [fShutdown]
+ * @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
  */
-Mouse.prototype.powerDown = function(fSave)
+Mouse.prototype.powerDown = function(fSave, fShutdown)
 {
     return fSave && this.save? this.save() : true;
 };

modules/pcjs/lib/panel.js

@@ -49,8 +49,10 @@ if (typeof module !== 'undefined') {
  * @extends Component
  * @param {Object} parmsPanel
  */
-function Panel(parmsPanel) {
+function Panel(parmsPanel)
+{
     Component.call(this, "Panel", parmsPanel, Panel);
+
     this.canvas = null;
     this.lockMouse = -1;
     this.fMouseDown = false;
@@ -61,7 +63,7 @@ function Panel(parmsPanel) {
     }
 }
 
-Component.subclass(Component, Panel);
+Component.subclass(Panel);
 
 /*
  * The "Live" canvases that we create internally have the following fixed dimensions, to make drawing

modules/pcjs/lib/ram.js

@@ -65,7 +65,7 @@ function RAM(parmsRAM)
     this.fAllocated = false;
 }
 
-Component.subclass(Component, RAM);
+Component.subclass(RAM);
 
 /**
  * initBus(cmp, bus, cpu, dbg)

modules/pcjs/lib/rom.js

@@ -101,7 +101,7 @@ function ROM(parmsROM)
     }
 }
 
-Component.subclass(Component, ROM);
+Component.subclass(ROM);
 
 /*
  * ROM BIOS Data Area (RBDA) definitions, in physical address form, using the same ALL-CAPS names

modules/pcjs/lib/serialport.js

@@ -109,7 +109,7 @@ function SerialPort(parmsSerial) {
  * for third-party apps.
  */
 
-Component.subclass(Component, SerialPort);
+Component.subclass(SerialPort);
 
 /*
  * Internal name used for the I/O buffer control, if any, that we bind to the SerialPort.

modules/pcjs/lib/video.js

@@ -269,7 +269,7 @@ function Video(parmsVideo, canvas, context, textarea, container)
     }
 }
 
-Component.subclass(Component, Video);
+Component.subclass(Video);
 
 Video.TRAPALL = true;           // monitor all I/O by default (not just deltas)
 

modules/pcjs/lib/x86cpu.js

@@ -188,7 +188,7 @@ function X86CPU(parmsCPU) {
     this.resetRegs();
 }
 
-Component.subclass(CPU, X86CPU);
+Component.subclass(X86CPU, CPU);
 
 X86CPU.CYCLES_8088 = {
     nWordCyclePenalty:          4,      // NOTE: accurate for the 8088/80188 only (on the 8086/80186, it applies to odd addresses only)

modules/shared/lib/component.js

@@ -185,17 +185,18 @@ Component.extend = function(o, p)
 };
 
 /**
- * Component.subclass(superclass, subclass, methods, statics)
+ * Component.subclass(subclass, superclass, methods, statics)
  *
  * See: Flanagan, David (2011-04-18). JavaScript: The Definitive Guide: The Definitive Guide (Kindle Locations 9854-9903). OReilly Media - A. Kindle Edition (Example 9-11)
  *
- * @param {Object} superclass is the constructor of the superclass
  * @param {Object} subclass is the constructor for the new subclass
+ * @param {Object} [superclass] is the constructor of the superclass (default is Component)
  * @param {Object} [methods] contains all instance methods
  * @param {Object} [statics] contains all class properties and methods
  */
-Component.subclass = function(superclass, subclass, methods, statics)
+Component.subclass = function(subclass, superclass, methods, statics)
 {
+    if (!superclass) superclass = Component;
     subclass.prototype = Component.inherit(superclass.prototype);
     subclass.prototype.constructor = subclass;
     subclass.prototype.parent = superclass.prototype;