v4.1.0

[iangilman]

• NEW BEHAVIOR: When navigatorRotate is false, while the navigator image doesn't rotate, the red outline now does (Added navigator's region rotation #2356 @lcl45)
• The viewer no longer emits canvas-key events for both keydown and keypress events; canvas-key is now just for keydown, and the new canvas-key-press is for keypress (issues/2192 fix - Introduced canvas-key-press for keypress. #2270 @hrghauri)
• You can now specify a priority when calling addHandler, to control when your event handler gets called relative to others (EventSource: promises, priorities and execution breaks #2273 @Aiosa)
• Added tileRetryMax and tileRetryDelay options, so the viewer can retry loading failed tiles (add loop for re-trying failed tiles [Take 3] #2238 @Ughuuu @paaddyy, Fix TileLoader re-trying even if successful #2 #2334 @Ughuuu @Titan21)
• All of the viewers keyboard handling is now in response to keydown events (it used to be split between keydown and keypress) (Consolidate viewer keyboard handling into keydown handler #2291 @MohitBansal321)
• Added canvas-focus and canvas-blur events to Viewer (add canvas-focus and canvas-blur events to Viewer #2301 @MohitBansal321)
• You can now more easily add custom buttons to the viewer (add custom button for this viewer  #2306 @MohitBansal321)
• The fitBounds function now takes zoom constraints into account (Take zoom constraint into account within _fitBounds #2293 @pearcetm)
• The viewer now has an after-resize event what happens after the viewport bounds have been updated, to complement the resize event which happens before (Add after-resize event #2317 @pearcetm)
• IIIFTileSource now uses resolution level dimensions provided in the info.json "sizes" field for more accurate tile requests (Use resolution level dimensions provided in the info.json "sizes" field #2337 @ruven)
• Added setAjaxHeaders method to Viewer and TiledImage (Add setAjaxHeaders method to Viewer and TiledImage #2346 @uschmidt83)
• Improved documentation (2087 add type Element to documentation for custom ui buttons #2297 @KevinBritten)
• Fixed: The tile-loaded event's completionCallback could be called more than once in some circumstances (Ensure tile-loaded event completionCallback is called only once.  #2282 @Aiosa, @pearcetm)
• Fixed: Navigator display rectangle was off if the page had box-sizing: border-box (Fix #2264: Navigator display rectangle is off when the page has box-sizing: border-box  #2276 @ambujsahu81)
• Fixed: Code that required identifying functions would fail for async functions (EventSource: promises, priorities and execution breaks #2273 @Aiosa)
• Fixed: Reference strip click detection was not accurate for long reference strips (fix problem with click precision on ReferenceStrip #2280 @damonsson)
• Fixed: Translation problems in some circumstances with cropping polygons enabled (partial bugfix for #2312 #2316 @pearcetm)
• Fixed: The navigator area rectangle would grow larger when you zoom in very far (Fixed #2314 #2318 @donotloveshampo)
• Fixed: JSON with embedded XML was being incorrectly identified as XML (Handle XML embedded in tilesource JSON #2328 @craigberry)
• Fixed: Touch/pinch rotate was not working properly on some platforms (Applied touch rotate fix suggested in #2319 #2324 @rsimon, @pearcetm)
• Fixed: Navigator rotation didn't honor immediately parameter (Fixes navigator rotation not honoring immediately parameter #2333 @robertjcolley)
• Fixed: The navigator didn't update for its new size in certain circumstances (update navigator size when calling setHeight or setWidth #2347 @pearcetm)

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This discussion was created from the release v4.1.0.