Lively Kernel canvas
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(13)ClassBrowser
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Top
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TheLivelyKernelhasaclassbrowserthatallowsthebehaviorofthesystemtobeviewedandeditedinteractively.TheupperleftpanelofthebrowsercontainsthenamesoftheLivelyKernel(JavaScript)classesinthesystem.Whenyouselectoneofthem,theupperrightpanelshowsallthemethods(functions)ofthatclass.Whenyouchooseoneofthemethods,thelowerpanelshowsthesourcecodeofthemethod.
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Notes:*Tosavechangesaftereditingamethod,usethe"acceptchanges"operationthatisavailableinthepopupmenuofthemethodpanel.Youcanalsousethekeyboardshortcutsdefinedbelow.Therearevariouskeyboardshortcutsavailabletoeditthemethods.(NOTE:Theseshortcutsdonotworkonallbrowsers.Insomebrowsersyoumayhavetousethe"AltGr"keyinstead):*Alt-S("Save-It"):Save(accept)thechanges.*Alt-A:SelectAll*Alt-X:Cut*Alt-C:Copy*Alt-V:Paste*Alt-X:UndoSomeadditionalcommentsontextediting:*Typingreplacesselection.*Double-clickingselectsaword;triple-clickingselectstheentiretext.*Double-clickingnearabracket,parenthesisoraJavaScriptcomment(/*...*/)selectstextinsidethebrackets/parentheses/comment.
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Next
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Prev
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1000
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Wikicontrol
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Tryityourself!TryviewingthemethodsofclassRectShape.Tryeditingsomeofthemethodstomakechangestothebehaviorofthesystemitself.Forinstance,ifyoumodifythemethodRectShape.setFillasshownbelowyouchangethewaymenusandmanyotherobjectsnthesystemaredrawn.YouhavetoacceptthechangesbypressingAlt-Sorbychoosingthe"evaluateasJavaScriptcode"popupmenuitemofthetextyoujustedited.
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RectShape.prototype.setFill=function(string){this.setAttributeNS(null,"fill",Color.green); }
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Tryopeninganypopupmenuaftercompletingthischange.Thebackgroundcolorofthemenushouldnowbegreen.
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1231409735853
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1231409735
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