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BYOB4 (Snap) history
---------------------
110511
------
* Scrolling by dragging
* Scrolling by dragging velocity
110516
------
* Autoscrolling
110518
------
* Textures
110524
------
* CommandSlotMorphs (%c)
110527
------
* Templates
* Padding for ScrollFrames
110530
------
* C-slots only attach to blocks' tops (no longer also to bottoms)
110531
------
* ReporterBlockMorphs
110628
------
* World menu in every Morph's developersMenu
* changed the standard to "sharp shadows" because of Firefox5 bug
110630
------
* StringMorphs and TextMorph notify their parents of layout changes
* TypeInSlotMorphs (round - %n - and rectangular - %s -)
110705
------
* block specs
110706
------
* BooleanSlotMorphs (%b)
* Color mixing
* contrast setting for SyntaxElementMorphs
* exit confirmation
110707
------
* BlockMorph color changing
* entry field tabbing (Firefox and Opera only)
* label multi-line wrapping for command blocks
110708
------
* extrapolate blockSpec upon label part drop
110711
------
* optional intra-block-label word wrap (flag) layout setting
110712
------
* rectangular reporter layout
* label mutli-line wrapping for reporters
* user-definable label line breaks (%br)
* font size customizable for individual menus
* ArrowMorphs
110714
------
* optional drop-down menu for type-in slots
* read-only menus for type-in slots (%inst, %var, %lst, %obj, %eff,
%dir, %cst, %snd, %key, %idx, %msg, %att, %fun, %typ)
* global pixel color sensing
* renamed TypeInSlotMorph to InputSlotMorph
110718
------
* ColorSlotMorphs (%clr)
* collision detection groundwork
110719
------
* high-level documentation and code comments
* optional blurred slot shades (off by default)
110720
------
* HatBlocks
110721
------
* scrollBarSize can now optionally be specified individually
* block highlighting
* specs for any-unevaluated and Boolean-unevaluated inputs
110722
------
* stringField settable as numeric, supresses textual input
* editable numeric input slots supress textual type-in
* evaluation helper methods and properties
* collision detection
110726
------
* MultiArgMorphs (%mult%x)
110727
------
* Morphic: fullBounds() now ignores hidden submorphs
* MultiArgMorphs: Optional label and minimum inputs settings, '%inputs'
* Morphic: simplified BoxMorph rendering
* Same-colored (white), semi-transparent reporter drop feedbacks
110804
------
* evaluator: ThreadManager, Process, StackFrame, VariableFrame
110810
------
* nasciturus: objects, gui
110811
------
* Morphic: broken rect fix for float-positioned Morphs
* Blocks: straight bottom edges for stop-blocks
* PenMorph: round line ends
110816
------
* Morphic: SpeechBubbleMorphs and bubble help for menus/buttons
110817
------
* Threads: evaluating reporters
* showValue bubbles
110818
------
* optimizations for menu bubble help and Blocks layout
110823
------
* Sprite-scoped variables
110824
------
* numerical virtual keyboard (pop-up-sliders - taken out again)
* sliders now work with negative floor numbers
* mouse wheel scroll events (thanks, Nathan!)
110826
------
* TemplateSlotMorphs (%t, %mult%t, %scriptVars)
* script variables
* lockable inputs
110911
------
* Morphic: PenMorph.setHeading() fixed
110912
------
* Threads: renamed StackFrame to Context
* Blocks: persistent input default values
110913
------
* basic Lambda primitives
* basic Lambda visualization (showBubble)
110914
------
* c-slots in primitives are now static by default
* basic THE BLOCK, CALL and REPORT
110919
------
* formal parameters
* recursion
* closures
110922
------
* implicit parameters
110923
------
* error catching for block evaluation
110926
------
* basic message broadcasting
* thread forking (LAUNCH block)
110927
------
* WAIT block
110928
------
* GLIDE block
111006
------
* force yield after timeout
111007
------
* swooshy hat block tops (instead of circle segments)
111009
------
* call/cc
111010
------
* hybrid scope
111012
------
* autolambdafying CSlotMorphs (C-shaped) and CommandSlotMorphs (inline)
* Morphic: right mouse click emulation for Mac
111017
------
* another take on continuations
111019
------
* Morphic: scrolling speedup
111020
------
* unevaluated FunctionSlotMorphs (%f)
* autolambdafying ReporterSlotMorphs (%r, %p)
111021
------
* GUI: CellMorphs (for stage watchers)
111025
------
* GUI: WatcherMorphs
* SHOW VARIABLE, HIDE VARIABLE blocks
111026
------
* Blocks: empty choice for input drop down menus
* automatic positioning of new watchers
* watchers on temporary variables are deleted by HIDE VARIABLE block (not hidden)
* HIDE VARIABLE with empty input deletes all watchers on temporary vars
111027
------
* more extensive Error catching
* slider for numerical text entries in "mobile mode"
* bigger blocks in "mobile mode"
111031
------
* new: widgets.js
* PushButtons
111102
------
* Morphic: StringMorph shadows
111103
------
* widgets: ToggleMorphs (check boxes and radio buttons)
* non-variable watchers
* checkbox toggling for variable watchers
111108
------
* Lists
111109
------
* ListWatchers (basics)
111111
------
* Morphic: visibleBounds() bug fix
111114
------
* Morphic: fullImageClassic() for ListWatcherMorphs
* Threads: MultiArgMorph now use Lists instead of JS-Arrays
* List Blocks
* GUI: adding/removing variables doesn't make the palette jump to the top
* Blocks: list type slots
111115
------
* Morphic: more tolerant grabbing
* Lists: synchronized Watcher updating (speed-up)
111116
------
* Lists: conservative watcher updating (speed-up)
* GUI: logo pane and 'about' box
111118
------
* Lists: watcher shows list range (speed-up, stability)
111121
------
* Atomicity (WARP)
* REPEAT UNTIL
* WAIT UNTIL
111123
------
* hybrid lists (arrayed and linked)
* CONS and CDR
111124
------
* layout optimization for dropped and snapping blocks (thanks, John!)
* Equality testing for lists (thanks, Brian!)
111128
------
* layout optimization merged into Morphic.js -> trackChanges
111129
------
* Widgets: DialogBoxMorph basics
111130
------
* Widgets: AlignmentMorphs
* keyboard events for DialogBoxMorphs
111202
------
* Widgets: InputFieldMorphs
* Prompters based on DialogBoxes
* Renaming of input templates
* Morphic keyboard enhancements
111205
------
* new primitives: MOUSE X, MOUSE Y, TIMER, RESET TIMER
111207
------
* byob.js (CustomBlockDefinition, CustomCommandBlockMorph)
111209
------
* BlockEditor basics for CustomCommandBlocks
111212
------
* BlockDialogMorph (basics)
* CustomReporterBlockMorph
111213
------
* call/cc for lambdas and custom blocks
111214
------
* feature: deleting block instances and custom block definitions
120106
------
* InputSlotEditor basics
* bigger tick for radio buttons
* PushButtons redone for WebKIT 2 compatibility
120109
------
* Morphic: single quote input for WebKIT 2 compatibility
* BYOB: BlockInputFragmentMorphs
120115
------
* BlockLabelPlaceHolderMorphs
* BlockInputDialogMorph (short form)
120119
------
* MOD, TRUE and FALSE reporter blocks
* AND, OR, NOT reporter blocks
* BROADCAST AND WAIT command block
120120
------
* Morphic: question mark input for WebKIT 2 compatibility (does it break on Windows?)
* Morphic: turtle tracks round endings for WebKIT 2 compatibility (cannot use closePath())
120123
------
* Threads: tail call elimination
120125
------
* STORE: serializing, saving and loading projects, first pass, all by Nathan
* HatBlock bezier curve fixed width
* settings for AlignmentMorph regarding handling of hidden Morphs
* GUI enhancements
* input slot long form dialog variant outline
* pointless filters in most FORINS in response to Nathan's derogatory comments :-)
120127
------
* input slot long form dialog - basic (single) input types
120130
------
* input slot long form dialog - multiple inputs
* input slot long form dialog - default input values
120131
------
* upvar GUI in input slot long form dialog (w/o upvar functionality)
120201
------
* upvars in %var slot drop-down menu
120202
------
* more primitives in Motion, Looks and Pen categories
120203
------
* Morphic: horizontal mouse wheel scrolling (thanks for this fix, Nathan!)
* more primitives in the Pen category
120206
------
* Morphic: color specifiable in String() constructor
* Widgets: ToggleButtonMorphs
* Objects: block categories
* GUI: tabbed palette mock-up (not yet within a real GUI)
120207
------
* BYOB: categories (colors) for new custom blocks
120208
------
* categories and block type editing for existing custom blocks
120209
------
* Morphic: formatting capabilities for Menus and ListMorphs
* Morphic: optional 'own properties' highlighting in the Inspector's "show" menu
120214
------
* multiple sprites & lots of new stuff in all modules
* Morphic: dragging optimization
* Nathan's fixes to Morphic (shadow fix, mouse wheel fix)
120215
------
* scriptable and programmable stage, selectable in the corral
* stage watchers with "active", auto-updating object name labels
* IF ON EDGE BOUNCE primitive, still buggy
* GUI fixes, all frame morphs in the corral now reject object drops
120216
------
* saving & loading, xml serialization, thanks, Nathan!
120217
------
* Morphic: introducing combined mouse-keyboard events
* GUI: Project label
120221
------
* user and development modes (shift-click on Snap! logo)
* Open Project dialog (thanks, Nathan)
* blocks caching for primitives and custom blocks
* custom block prototype edits visible in the palette while editing
* sprite duplication
* custom block definition duplication and re-binding
* the only sprite in the IDE is now deletable
* primitive blocks for GHOST effect
120222
------
* Morphic: Tabbing among input fields fix
* Threads: REPORT primitive fix
120224
------
* STOP BLOCK primitive
* error catching turns off in development mode (on in user mode)
120226
------
* primitive control structures adjusted to new REPORT rule
120229
------
* global variables
* hybrid lists CDR fix (thanks, Brian!)
* debugging primitives (alert, console.log) in development mode
* all libraries edited to conform to JsLint's latest petty rules ('else' after 'return')
120301
------
* store.js: color slot and global vars patch (thanks, Nathan!)
* blocks.js: bug fix for drop-down menus (wouldn't allow selecting empty)
120305
------
* upvars
* globals vars serialization fix
* MultiArgs: shift-clicking on an arrow repeats action 3 times
120306
------
* Morphic: prevent text edits from reversing
* added "WITH INPUT LIST" variants for RUN/LAUNCH/CALL primitives - commented out
* changed '%inputs' slot type to non-static (makes "w/input list" redundant)
* Threads: fixed tail-call optimization induced bug in pushContext()
* WHEN I AM CLICKED hat block (control)
* WHEN KEY PRESSED hat block (control)
* MOUSE DOWN? predicate (sensing)
* KEY PRESSED? predicate (sensing)
120307
------
* object collision detection (TOUCHING? predicate block for Sprites)
* poly-key state detection
120308
------
* Morphic: SpeechBubbleMorph orientation left/right
* Threads: empty block definitions no longer raise an exception
* SAY primitive command block for Sprites
120309
------
* SAY _ FOR _ SECS primitive command block for Sprites
* Morphic: thought bubble display variant of SpeechBubbleMorph
* THINK and THINK FOR SECS primitive command blocks for Sprites
* STAMP primitive command block for Sprites
* ROUND, JOIN, LETTER OF, LENGTH OF, UNICODE OF and UNICODE AS LETTER primitive reporters
120313
------
* Widgets: ToggleElementMorph, TabMorph
* BlockEditor: Pictographic type buttons
* IDE: Tabs for scripts/costumes/sounds
120314
------
* JOIN becomes variadic (Jens isn't enthusiastic about it)
* About text changed according to Mitch's suggestion
* BYOB: JaggedBlockMorph
* pictographic type buttons in the short form input dialog
120315
------
* Morphic: colored shadows
* Widgets: ToggleMorph with embedded toggle elements
* pictographic slot type buttons in the long form input dialog
* palette speedup
* Error message when RUN/CALL/LAUNCHing a block w/o passing the expected no. of inputs
* Illegal drops prevented in user mode (enabled in dev mode)
120316
------
* long form input dialog speedup (pictograms are now plain pictures instead of Toggles)
* Morphic: Morphs behind another one no longer receive mouseEnter/mouseLeave events
* Blocks: ScriptPanes behind other Morphs no longer show drop target feedbacks
120319
------
* THREADS: unevaluated inputs
* Morphic: detect and respect minimum font size renderable
* Morphic: text selection display fix for FF
120320
------
* Morphic: droppedImage() event
120321
------
* Costume, CostumeEditorMorph, CostumeIconMorph
120322
------
* GUI: WardrobeMorph
* Slider and ScrollFrame colors
120323
------
* Morphic: handle multiple image file drops
120327
------
* Costumes, first iteration
120328
------
* Costumes: rotation center functionality
120329
------
* Sprites: the rotation center now is the pen tip
120331
------
* Stage: extra pen trail layer
* Morphic: texture handling (eliminating canvas patterns b/c of Chrome problems)
* Objects: motion precision fixes
120401
------
* settings menu: touchscreen settings
* thread safety option
* store.js: Costumes & pen trails support. Thanks, Nathan!
* context menus for watchers (thx, Nathan!)
120402
------
* pressing the stop sign makes all speech bubbles disappear
* null continuations now behave the same as STOP SCRIPT blocks
120403
------
* minWidth property for SyntaxElements
120406
------
* ASK/ANSWER for sprites
120403
------
* ASK/ANSWER for the stage
120416
------
* custom block prototype slot type and default value indicators
* Sounds, first pass (thanks, Ian!)
120417
------
* Snap! Build Your Own Blocks. Alpha
120420
------
* Rings (basics)
120424
------
* Rings (first pass completed)
120425
------
* unringify menu item for Blocks
* evaluator: variable setters can refer to variables by their reified getters
120430
______
* zebra coloring (first pass)
120502
------
* settings menu item for toggling zebra coloring
* new thumbnail() for StageMorph
* store.js: Fixes for local storage in local instance ("airplane saving")
120503
------
* text- and object- type slots (and hints)
* zebra coloring fixes for input slots with pull-down menus
* costume flipping
* rotation styles
120504
------
* rotation style support for sprite "turtle" costume
* rotation style buttons hidden for stage
* export background-less pictures of scripts
* sprite draggability control checkbox (in the IDE's sprite bar)
120507
------
* reification: omit empty slots inside nested lambdas for implicit parameters
* display fixes for rings inside rings
* DISTANCE TO reporter block primitive in the sprite's sensing category
120509
------
* exporting projects (holding the shift key URI-encodes the XML)
120514
------
* Morphic: droppedText() event
* GUI: opening project files via drag & drop
* GUI: invoking the file dialog to open projects, import costumes and sounds
* Threads: nested upvar fix
* Threads: hybrid variable scope taken out (it's all lexical again for now)
* Blocks/BYOB: zebra-coloring related fixes
120515
------
* GUI: disabled file dialog for now due to some issues
* Blocks/BYOB: Prototype block zebra coloring adjustment
* Store: minor fixes in the blocks dictionary
120516
------
* monadic OF primitive block in the operators category
120518
------
* Morphic: better keystroke detection
* new interpolating HTTP reporter in the sensor palette
120521
------
* Pinch-Zoom for touchscreen devices
* Virtual keyboard for touchscreen devices
120522
------
* Morphic/Blocks: SlideBackToFormerSituation
120523
------
* Morphic: single-touch-and-hold pops up the context menu
* Morphic: pinch-zoom and virtual keyboard improvements
120525
------
* late-binding custom blocks, changes in threads.js, byob.js and store.js (et al.)
120611
------
* Morphic: auto-detect Chrome issue 90001 and set "useBlurredShadows" appropriately
* Blocks: solid block highlighting (as in Scratch 1.4) when "useBlurredShadows == false"
* GUI: Settings menu entry for blurred / solid shadows and highlights
* Threads: Type checking, <IS [] A [] ?> primitive in the operators category
120612
------
* global custom blocks (first pass, no serialization yet)
120613
------
* new module: xml.js, a simple XML DOM/encoder/parser for Morphic.js
120614
------
* store.js: Global vars fix (xml.js deprecated)
120615
------
* store.js: Stage vars (watchers) fix
* store.js: Empty (bodiless) custom blocks fix
* store.js: Global custom blocks support
120618
------
* GUI: Screenshot feature
* GUI, store.js: Error catching turned off in dev mode (for debugging store.js)
* store.js: saving / loading of sprites' scale, draggability and rotation style
* Morphic/GUI: Virtual keyboard support can be toggled (to hide caret in Opera etc.)
* GUI, store.js: Saving / loading of "thread safety" setting
* blocks caching limited to primitives
* introducing palette caching
120619
------
* store.js fixes for empty, non-editable input slots (e.g. list and boolean slots)
* objects.js/byob.js fixes for editing recursive custom blocks
120620
------
* Morphic/Blocks: More precise control over where reporters are dropped and snap
* Morphic documentation update
120621
------
* POINT TOWARDS and GO TO primitive command blocks in the motion category
120622
------
* changed license to AGPL (all modules and documentation)
120625
------
* objects fix: changing pen properties sometimes offsets the sprite
* blocks: variable slots no longer accept reporter drops (Jens regrets but doesn't agree to auto-ringify dropped variable blobs at this stage of development)
* blocks: better (yet) control over where reporters can be dropped
* blocks fix: sometimes reporters cannot be dropped into slots in the block editor
* threads: comparing strings (the = block) is now case-insensitive
* threads/blocks: multi-args can now be eval'ed with variadic inputs
* lists: equality testing fix for mixed linked/arrayed lists (thanks, Brian!)
* LIST primitive with new, static input spec
* store: stage watcher styles (small, large, slider) are now persistent thru save/re-load
* objects: stage watcher slider min/max is now settable thru context menu
* store: stage watcher slider min/max are now persistent through save/re-load
120626
------
* blocks/threads fix: "any unevaluated" slots now reify their typed-in input values
* byob/threads fix: custom block definition reification now ignores empty-slot bindings
* GUI: copying scripts among sprites via drag & drop on corral icons (first rough version)
120627
------
* blocks/store/objects/threads fix: STOP BLOCK gets converted to REPORT on save/reload
* byob/GUI: new entry in the settings menu to always show input dialog in long form
* blocks/GUI: new entry in the settings menu to prefer empty slots for reporter drops
* blocks: in scripting areas rings and variable reporters can be nested inside each other
* in general rings will not vanish on ring/var drop if already inside other rings
* context menu help feature for blocks
120628
------
* GUI: re-ordering costumes via drag & drop
* GUI: copying costumes among sprites via drag & drop on corral icons
120629
------
* Morphic: StringMorphs now have the option to visualize blanks (as colored dots)
* Blocks: all input slots (in blocks) are now visualizing blanks
* GUI: re-ordering sounds via drag & drop
* GUI copying sounds among sprites via drag & drops on corral icons
120702
------
* store fix: Newly loaded projects did not get keyboard events (now they do)
* threads fix: Evaluating STOP ALL did not stop sounds (now it does)
120703
------
* GUI: open a project from URL via #open:URL
* GUI: run a project from data via #run:XML or from URL via #run:URL
120704
------
* major refactoring of serialization (new xml.js, store.js)
120705
------
* store: stage watchers monitoring lists remember their dimensions
120709
------
* xml decoding fix
* app mode, first rough pass (no stage scaling yet)
120710
------
* app mode related adjustments to blocks.js, gui.js and threads.js
* fix: line breaks in project notes are now preserved thru export/import (xml)
120711
------
* app mode: arbitrary stage scaling (auto-resizes to fill the browser's client area)
120712
------
* small stage mode (for bigger scripting area, e.g. in lectures or on mobiles)
120713
------
* objects fix: zero values now show up in watchers (are no longer blank)
* objects fix: dragged sprites now keep their correct relative stage coordinates
* threads fix: dragged sprites are identifiable by running scripts
120716
------
* Morphic scroll frames: customizable "growth" property, used in scripting panes
* store: Sprites' visibility state gets persisted thru save/load
* store: Watchers' visibility attribute format now same as sprites' (hidden="true")
* BYOB fix: Custom block prototype rendering fix when opening a Block Editor instance
* blocks fix: Predicate slots no longer turn into reporter slots upon save/load
* blocks fix: made dropping reporters into empty slots easier when preferring empty slots
120717
------
* costumes/sounds: omit filename suffixes when importing
* costumes/sounds: rename via context menu
* costumes: export via context menu
* thumbnails: are now centered within their widgets
120718
------
* fix: catch nil inputs in motion and looks primitives
* fix: answer variable value Boolean false not as zero
* GUI: window-reflow adjustments
* store fix: Booleans retain their type thru save/load (not converted to Strings)
* threads fix: using REPORT/STOP BLOCK inside a WARP block now stops warping
120719
------
* graphic effects (currently only "ghost") for the stage
* new feature: Pen trails collision detection
* fix: Keystroke detection
120720
------
* fix: textify zero and false values in JOIN primitive (don't skip)
120723
------
* Color collision detection (first rough pass)
120724
------
* Color collision detection & thumbnail adjustments and fixes, incl. helpscreens
120725
------
* fix: SET PEN COLOR no longer offsets the sprite
* settings menu: optional input sliders (for Android)
120726
------
* REPORT primitive moved to STOP blocks in palette
* graphical representation of Boolean values in watchers and bubbles
* fix: empty numerical input slots evaluate to zero (thanks, Stephen!)
120728
------
* speech bubble scaling
* Boolean value representations in operator color (green)
* eliminated "ring" type
120730
------
* adjust REPORT / STOP BLOCK semantics (special case implicit C-shaped slot lambdas)
120731
------
* lists fix: preserve zero/false values when assigned in list blocks
* threads refactored (eliminated now redundant context.isInsideCustomBlock attribute)
* blocks/byob: mutable formal parameters for custom block definitions and rings
* threads: CHANGE VAR typecasting bug fixed
120801
------
* JOIN can now have any number of input slots, and be CALLed with an input list
120802
------
* threads: Invoking a lambda with empty input slots without arguments binds them to ''
* blocks/gui/byob: MultiArg layout fix
* "Clicking sound" option in the settings menu
120803
------
* blocks fix: enable reporter drops on empty rings in "prefer empty slot drops" mode
120806
------
* blocks: SymbolMorph replaces Unicode characters for "green flag" and "stop" signs
* widgets: allow SymbolMorphs as button labels, new layout rule: minLabelExtent for buttons
* gui: button layouts moved to minLabelExtent rule
* fix: prevent drops on multi-arg arrows
* SymbolMorphs for all items in the GUI's tool bar
120807
------
* SymbolMorphs for object type slot and identifier, and for "new sprite" button
* Verdana font preference for block labels (wider)
* store fix: Watcher label for "answer" now survives save/load (Thanks, Tom!)
120808
------
* Morphic, GUI, blocks, BYOB: More "gentle" font control (can be overridden by browser)
* BYOB: new "Apply" button in the block editor (updates definition keeping editor open)
* BYOB: editing custom block prototpyes preserves existing inputs in custom block instances
120809
------
* Pause button: Pauses/resumes all currently active stage processes (scripts)
* blocks: minor performance tweaks
120810
------
* blocks: bug fix for input accessing in variable drop-downs
* dev-mode reporter for STACK SIZE for tail-call-elimination monitoring
120813
------