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changelog.txt
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OPENSEADRAGON CHANGELOG
=======================
5.0.0: (in progress...)
* BREAKING CHANGE: Dropped support for IE11 (#2300, #2361 @AndrewADev)
* DEPRECATION: The OpenSeadragon.createCallback function is no longer recommended (#2367 @akansjain)
* Introduced maxTilesPerFrame option to allow loading more tiles simultaneously (#2387 @jetic83)
* Now when creating a viewer or navigator, we leave its position style alone if possible (#2393 @VIRAT9358)
* Test improvements (#2382 @AndrewADev)
* MouseTracker options documentation fixes (#2389 @msalsbery)
* Fixed: Sometimes if the viewport was flipped and the user zoomed in far enough, it would flip back (#2364 @SebDelile)
4.1.0:
* NEW BEHAVIOR: When `navigatorRotate` is false, while the navigator image doesn't rotate, the red outline now does (#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 (#2270 @hrghauri)
* You can now specify a priority when calling addHandler, to control when your event handler gets called relative to others (#2273 @Aiosa)
* Added tileRetryMax and tileRetryDelay options, so the viewer can retry loading failed tiles (#2238 @Ughuuu @paaddyy, #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) (#2291 @MohitBansal321)
* Added `canvas-focus` and `canvas-blur` events to Viewer (#2301 @MohitBansal321)
* You can now more easily add custom buttons to the viewer (#2306 @MohitBansal321)
* The fitBounds function now takes zoom constraints into account (#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 (#2317 @pearcetm)
* IIIFTileSource now uses resolution level dimensions provided in the info.json "sizes" field for more accurate tile requests (#2337 @ruven)
* Added setAjaxHeaders method to Viewer and TiledImage (#2346 @uschmidt83)
* Improved documentation (#2297 @KevinBritten)
* Fixed: The `tile-loaded` event's completionCallback could be called more than once in some circumstances (#2282 @Aiosa, @pearcetm)
* Fixed: Navigator display rectangle was off if the page had `box-sizing: border-box` (#2276 @ambujsahu81)
* Fixed: Code that required identifying functions would fail for async functions (#2273 @Aiosa)
* Fixed: Reference strip click detection was not accurate for long reference strips (#2280 @damonsson)
* Fixed: Translation problems in some circumstances with cropping polygons enabled (#2316 @pearcetm)
* Fixed: The navigator area rectangle would grow larger when you zoom in very far (#2318 @donotloveshampo)
* Fixed: JSON with embedded XML was being incorrectly identified as XML (#2328 @craigberry)
* Fixed: Touch/pinch rotate was not working properly on some platforms (#2324 @rsimon, @pearcetm)
* Fixed: Navigator rotation didn't honor `immediately` parameter (#2333 @robertjcolley)
* Fixed: The navigator didn't update for its new size in certain circumstances (#2347 @pearcetm)
4.0.0:
* NEW BEHAVIOR: Setting the viewport rotation now animates by default (pass true for the new `immediately` parameter to disable) (#2136 @jonasengelmann)
* NEW BEHAVIOR: The auto resize now takes both width and height into account when scaling the contents proportionally to the viewer (#2256 @pearcetm)
* DEPRECATION: Don't access the viewport's degrees property directly anymore; instead use setRotation and getRotation (#2136 @jonasengelmann)
* New gesture: Double-click and drag to zoom (on by default for touch) (#2225 @HamzaTatheer)
* You can now provide a pivot point when rotating the viewport (#2233 #2253 @pearcetm)
* Improved the constraints that keep the image in the viewer, specifically when zoomed out a lot (#2160 @joedf, #2246 @pearcetm)
* You can now provide an element for the navigator (as an alternative to an ID) (#1303 @cameronbaney, #2166 #2175 @joedf)
* Now supporting IIIF "id" and "identifier" in addition to "@id" (#2173 @ahankinson)
* We now delegate tile fetching and caching to the TileSource, to allow for custom tile formats (#2148 @Aiosa)
* Added support for dynamic URLs from tile sources (#2247 @JohnReagan)
* The viewer now emits before-destroy and destroy events (#2239 @pearcetm)
* Auto resize detection is now more efficient (#2256 @pearcetm)
* Improved documentation (#2211 @shyamkumaryadav)
* Fixed: Cropping tiled images with polygons was broken (#2183 @altert)
* Fixed: Boundary constraints were wrong when the viewport was rotated (#2249 @pearcetm)
* Fixed: IIIF tile sizes would be calculated wrong on rare occasions (#2206 @filak)
* Fixed: Disabling buttons only changed their appearance, but they were still clickable (#2187 @pearcetm)
* Fixed: ImageTileSource produced an error having to do with getTileHashKey (#2190 @Aiosa)
* Fixed: On startup you would get an unnecessary "Viewer.buttons is deprecated" warning (#2201 @joedf, #2219 @jssullivan, #2212 @joedf)
3.1.0:
* Added subPixelRoundingForTransparency Viewer option to address seams that can appear in semi-transparent images (#2075 @TanukiSharp)
* Added Viewer.isAnimating() (#2075 @TanukiSharp)
* Added isFullScreen method to Viewer (#2067 @JachiOnuoha)
* Added option to include POST data when loading files via Ajax (#2072 @Aiosa)
* Exposed TiledImage's private functions for better maintainability (#2134 @Aiosa)
* Tile cache keys are now generated by the tile source, so it's easier to override them as needed (#2138 @Aiosa)
* Pinch to zoom now zooms around the center of the pinch, rather than the center of the viewer (#2158 @cavenel)
* Added fallback and deprecation warning for Viewer.buttons (which got changed to buttonGroup in 3.0.0) (#2153 @devbyjonah)
* Fixed an issue where turning off panVertical or panHorizontal would not affect the panning keyboard combos (#2069 @JachiOnuoha)
* Cleaned up console.logs so that errors and warnings use console.error and console.warn as appropriate (#2073 @Abhishek-90)
* Improved documentation (#2067 @JachiOnuoha, #2112 @shyamkumaryadav, #2152 @joedf, #2155 @samwilson)
* Fixed: Setting useCanvas to false would break the viewer (#2116 @rvv-bouvet)
* Allow silencing multi-image warnings on viewport coordinate conversion functions (#2120 @claycoleman)
* Fixed: Swiping fast multiple times made contact points in MouseTracker out of sync for touch events (#2121 @ronnymikalsen)
* Made MouseTracker more robust in certain scenarios (#2134, #2147 @Aiosa)
* Fixed an issue where full page mode wouldn't grow properly if you resized the window (#2100 @TanukiSharp)
* Now if you pass an error handler into makeAjaxRequest, it doesn't report errors into the console (#2142 @Aiosa)
* Fixed error caused by attaching MouseTracker to the page's document element (#2145 @tdiprima)
* Fixed an issue that would sometimes cause problems with freeing up ImageTileSource memory (#2162 @pearcetm)
3.0.0:
* BREAKING CHANGE: Dropped support for older browsers (IE < 11) (#1872 #1949 #1951 @msalsbery, #1950 @rmontroy)
* BREAKING CHANGE: Removed deprecated OpenSeadragon.getEvent function (#1949 @msalsbery)
* DEPRECATION: MouseTracker exitHandler deprecated for name change to leaveHandler for consistency with DOM event names (#1872 @msalsbery)
* Now when "simple image" tile sources are removed from the viewer, they free the memory used by the pyramid they create (#1789 @TakumaKira)
* Improvements to docs (#1814 @kenanchristian, #1872 @msalsbery, #1996 @tdiprima)
* Better cleanup on destruction, to avoid memory leaks (#1832 @JoFrMueller)
* Better handle destruction when navigator in custom location (#1884 @woodchuck)
* Miscellaneous code cleanup (#1840 @msalsbery)
* You can now specify tileSize for the Zoomify Tile Source (#1868 @abrlam)
* Better use of IIIF "max" and "full" URL parameters (#1871 @MImranAsghar)
* You can now specify the file format of the tiles in the Zoomify tile source (#1889 @abrlam)
* Improved browser sniffing - detect EDGE and CHROMEEDGE browsers (#1872 @msalsbery)
* Improved DOM event model feature detection (#1872 @msalsbery)
* Added support for options parameter on addEvent()/removeEvent (to support passive option) (#1872 @msalsbery)
* Added OpenSeadragon.eventIsCanceled() function for defaultPrevented detection on DOM events (#1872 @msalsbery)
* MouseTracker: better PointerEvent model detection - removed use of deprecated window.navigator.pointerEnabled (#1872 @msalsbery)
* MouseTracker: added overHandler/outHandler options for handling corresponding pointerover/pointerout events (#1872 @msalsbery)
* MouseTracker: changed enterHandler/leaveHandler to use DOM pointerenter/pointerleave events instead of simulating using pointerover/pointerout (#1872 @msalsbery)
* All internal uses of MouseTracker use pointerenter/pointerleave events instead of pointerover/pointerout events for more consistent pointer tracking (#1872 @msalsbery)
* Fixed bug in Button class where two MouseTracker event handlers used an invalid "this" causing issues in some browsers (#1872 @msalsbery)
* Added pointerType property to Viewer container-enter, container-exit, canvas-drag, canvas-drag-end, canvas-pinch events (#1872 @msalsbery)
* MouseTracker: Fire dragEndHandler event even if release point same as initial contact point (#1872 @msalsbery)
* MouseTracker: Pointer capture implemented with capture APIs where available. Only fallback to emulated capture on extremely old browsers (#1872 @msalsbery)
* MouseTracker: Added preProcessEventHandler option to allow MouseTracker instances to control bubbling and default behavior of events on their associated element (#1872 @msalsbery)
* MouseTracker: Improved handling of canceled events (#1872 @msalsbery)
* MouseTracker: Improved releasing of tracked pointers on destroy()/stopTracking() (#1872 @msalsbery)
* Updated Viewer, Button, Drawer, Navigator, ReferenceStrip DOM for proper DOM event handling (#1872 @msalsbery)
* Added OpenSeadragon.setElementPointerEventsNone() for setting pointer-events:'none' on DOM elements (#1872 @msalsbery)
* MouseTracker: added contextMenuHandler option for handling contextmenu events (#1872 @msalsbery)
* Viewer: added a canvas-contextmenu event (#1872 @msalsbery)
* Fixed simulated drag events in navigator tests (#1949 @msalsbery)
* Added preventDefault option to MouseTracker.contextMenuHandler and Viewer 'canvas-contextmenu' event args (#1951 @msalsbery)
* MouseTracker: Added preProcessEventHandler for keydown, keyup, keypress, focus, blur Events (#1951 @msalsbery)
* Fixed preventDefaultAction functionality in viewer events (#1953 @msalsbery)
* Added setImageFormatsSupported function (#1954 @pandaxtc)
* Added dragToPan to the GestureSettings class, implemented in Viewer (#1956 @msalsbery)
* Added preventDefault option to MouseTracker handlers: scrollHandler, keyDownHandler, keyUpHandler, keyHandler (#1957 @msalsbery)
* Fixed test "Events: Viewer: preventDefaultAction in dblClickHandler". Fixes #1372 (#1960 @msalsbery)
* ReferenceStrip: Fixed issue where its element was being removed from its parent element twice on destroy, causing an exception (#1958 @msalsbery)
* ReferenceStrip: Made its element focusable for keyboard navigation (#1958 @msalsbery)
* You can now flip individual images (not just the whole viewport) (#1903 @ali1234)
* Accessibility: we now take the browser's zoom into account when choosing what detail level to draw (#1937 @ronnymikalsen)
* Fixed a bug causing overlays to disappear in Sequence Mode (#1865 @gunmiosb)
* Fixed a bug where the ajaxHeaders provided per-image were not being used for image requests (#1968 @maxshuty)
* MouseTracker: Added workaround for WebKit Pointer Event Implicit Capture Bug (#1972 @msalsbery)
* Removed test for move-leave (fly-over, no enter event)...not a valid, handleable event state, no longer supported (#1972 @msalsbery)
* Added OpenSeadragon.setElementPointerEvents() for setting pointer-events to other values besides 'none' on DOM elements (#1972 @msalsbery)
* Now ensuring the page body is display:block when in fullscreen (#1995 @thewilkybarkid)
* Added a static method in OpenSeadragon to get an existing viewer (#2000 @HerCerM)
* Now ensuring that the new item is already in the navigator when the "add-item" event fires (#2005 @RammasEchor)
* Added keys to change image in sequence mode (j: previous, k: next) (#2007 @RammasEchor)
* Fixed a bug where the navigator wouldn't pick up opacity/composite changes made while it is loading (#2018 @crydell)
* Explicitly set passive:false for wheel event handlers to suppress console warnings. Fixes #1669 (#2043 @msalsbery)
* Viewer's canvas-click events now include an originalTarget property so you can know which element received the click (#2037 @iangilman)
* Added method for getting the size of an image in window coordinates (#2049 @superbland)
* Added a setMaxLevel function to TileSource so you can change its maxLevel if needed (#2059, #2066 @kim-sanghoon)
2.4.2:
* Add support for IIIF Image API 3.0 beta (#1764)
* You can now crop an image with arbitrary polygons (#1772)
* Improved support for using the Reference Strip in an OpenSeadragon Viewer inside a Web Component (#1676)
* Added setWidth and setHeight methods to Navigator (#1686)
* Improvements to docs (#1696, #1698, #1716, #1719)
* Now passing Viewer AJAX configs down to ReferenceStrip thumbnails (#1701)
* The ReferenceStrip now honors the useCanvas option from the Viewer (#1742)
* Fixed: Navigator was still resizing after you explicitly set its width and height with navigatorWidth and navigatorHeight (#1686)
* Fixed issues with touches on iOS 13 and iPad (#1754, #1756)
* No longer throwing an exception on pages that have malformed URL parameters (#1758)
* Fixed an issue with flipping the viewport on high pixel density screens (#1779)
* Removed use of deprecated imageSmoothingEnabled prefixes (#1740)
2.4.1:
* You can now turn off the default canvas image smoothing, if you want sharp pixels when zoomed in past 100% (#1507, #1593, #1595, #1647, #1648)
* Fixed problem with navigator highlight rectangle when returning from full screen with a custom navigator location (#1515)
* Added option to set rotation increment for nav buttons and keyboard (#1524)
* Fixed issue with flipping and opacity with multi-image (#1549)
* Removed vestigial button group label element that was causing issues for accessibility tools (#1560)
* Fixed a bug causing Viewer.areControlsEnabled to throw an exception (#1562)
* Added tileFormat option to IIIFTileSource so you can specify the tile format (#1625)
* Now using canonical URIs more consistently in IIIF to make caching and processing time easier on the server side (#1625)
* Added support for IIIF's new preferredFormats property (#1656)
2.4.0:
* BREAKING CHANGE: Viewer's canvas-double-click event is now fired before it initiates the zoom (#1288)
* You can now flip the viewport to get a mirror image of the original (#1441)
* You can now prevent canvas-double-click events from zooming on a per-event basis (#1288)
* Fixed: Opacity 0 images were causing unnecessary redraws (#1319)
* The "page" event is now fired after the page index has been updated (#1330)
* Added option pixelsPerArrowPress that sets the speed of arrow keys (#1364)
* Improved IIIF options.maxLevel calculation (#1401)
* Added canvas-key events, along with the ability to cancel key actions (#1414)
* Added optional zoom in the middle of the image instead of pointer position (#1423)
* Now supporting square edge tiles that are padded rather than cropped (#1426)
* Fixed an issue causing the simple image tileSource to sometimes show duplicate copies (#1370)
* Fixed an issue causing seams to appear in semi-transparent PNG tiled images (#1470)
* Added visual customization options for the navigator (#1480)
* You can now prevent canvas-drag events on the navigator (#1484)
* You can now prevent canvas-click events on the navigator (#1416)
* The navigator can now be restricted to just horizontal or just vertical panning (#1416)
* Fixed DziTileSource so it doesn't load levels above maxLevel or below minLevel, if set (#1492)
2.3.1:
* Debug mode now uses different colors for different tiled images (customizable via debugGridColor) (#1271)
* Fixed a problem with preventDefaultAction for the canvas-drag event (#1278)
* Fixed an issue causing double images with certain aspect ratios (#1280)
* Fixed: placeholderFillStyle had no effect (#1286)
* Fixed seams that appear in wrap mode on Safari and Firefox (#1305)
2.3.0:
* BREAKING CHANGE: Tile.distance has been removed (#1027)
* BREAKING CHANGE: Viewer's canvas-click event is now fired before it initiates the zoom (#1148)
* BREAKING CHANGE: Viewer's canvas-drag event is now fired before it pans (#1149)
* Added Zoomify tile source (#863)
* You can now set the rotation of individual tiled images (#1006)
* Added getFullyLoaded method and "fully-loaded-change" event to TiledImage to know when tiles are fully loaded (#837, #1073)
* You can now preload images without drawing them to the screen (#1071)
* Added support for commonjs (#984)
* Added an option to addTiledImage to change the crossOriginPolicy (#981)
* You can now load tiles via AJAX and custom AJAX request headers (#1055)
* Added ability to provide thumbnail URLs for reference strip (#1241)
* Improved panning constraints for constrainDuringPan (#1133 and #1245)
* You can now prevent canvas-click events from zooming on a per-event basis (#1148)
* You can now prevent canvas-drag events from panning on a per-event basis (#1149)
* The navigationControlAnchor option now works for custom toolbar as well (#1004)
* LegacyTileSource now allows any image URLs regardless of type (#1056)
* Enabled configuration of ImageLoader timeout (#1192)
* Viewer.open() now supports an initialPage argument for sequenceMode (#1196)
* New events for opacity and compositeOperation changes (#1203)
* Added support for setting debug mode after the Viewer object has been constructed (#1224)
* Added functions for dynamically adding and removing the reference strip in sequence mode (#1213)
* Better calculation for TileCache release cutoff (#1214)
* The navigator now picks up opacity and compositeOperation changes (#1203)
* Improved calculation for determining which level to load first (#1198)
* Added fix for supporting weird filenames that look like JSONs (#1189)
* Improved DziTileSource guessing of tilesUrl (#1074)
* The Viewer's tileSources option is now smarter about detecting JSON vs XML vs URL (#999)
* Better compression for our UI images (#1134)
* Optimization: Use the squared distance when comparing tiles (#1027)
* Now clamping pixel ratio density to a minimum of 1, fixing display issues on low density devices (#1200)
* More forgiving check for DZI schema (#1249)
* ImageTileSource now works in IE8 (#1041)
* Fixed CORS bug in IE 10 (#967)
* Fixed issue with tiles not appearing with wrapHorizontal/wrapVertical if you pan too far away from the origin (#987, #1066)
* Fixed: Initial tile load wasn't happening in parallel (#1014)
* Fixed problem with "sparse image" DZI files (#995)
* Fix IndexSizeError on IE and Edge that occurred under certain circumstances (e.g. multi-image with transparency) (#1035)
* Fixed error in IE8 when zooming in (due to edge smoothing) (#1064)
* Fixed issue with OpenSeadragon.version in the minified JavaScript (#1099)
* Fixed smoothTileEdgesMinZoom performance degradation on single-tile images (#1101)
* Fixed issue with tiles not appearing after rotation (#1102)
* Fixed: The navigator wasn't respecting the constrainDuringPan setting (#1104)
* Fixed an issue causing overlays to be mis-positioned in some circumstances (#1119)
* Fixed: ImageTileSource would sometimes produce a double image (#1123)
* Fixed: console.debug caused exceptions on IE10 (#1129)
* Fixed: the reference strip would leak memory when opening new sets of images (#1175)
* Fixed: zoomTo/zoomBy ignore refPoint if immediately is true (#1184)
* Fixed: IIPImageServer didn't work with the latest OSD release (#1199)
* Fixed: setItemIndex method not working with navigator inside "open" event (#1201)
* Fixed: The reference strip didn't show the initial page if it wasn't the first page (#1208)
* Fixed: Sometimes the image would stick to the mouse when right-clicking and left-clicking simultaneously (#1223)
* Fixed issue with transparent images sometimes disappearing on Safari (#1222)
* Fixed: One image failing to load could cause the others to never load (#1229)
* Fixed: Mouse up outside map will cause "canvas-drag" event to stick (#1133)
* Fixed more issues with tracking multiple pointers (#1244)
2.2.1:
* Fixed problems with zoom/pan constraints with certain extreme settings (#965)
* Fixed an issue causing the browser to crash on iOS (#966)
2.2.0:
* BREAKING CHANGE: Viewport.homeBounds, Viewport.contentSize, Viewport.contentAspectX and
Viewport.contentAspectY have been removed. (#846)
* BREAKING CHANGE: The Overlay.getBounds method now takes the viewport as parameter. (#896)
* DEPRECATION: Overlay.scales, Overlay.bounds and Overlay.position have been deprecated. (#896)
* Overlay.width !== null should be used to test whether the overlay scales horizontally
* Overlay.height !== null should be used to test whether the overlay scales vertically
* The Overlay.getBounds method should be used to get the bounds of the overlay in viewport coordinates
* Overlay.location replaces Overlay.position
* DEPRECATION: Viewport.setHomeBounds has been deprecated (#846)
* DEPRECATION: the Viewport constructor is now ignoring the contentSize option (#846)
* Tile edge smoothing at high zoom (#764)
* Fixed issue with reference strip popping up virtual keyboard on mobile devices (#779)
* Now supporting rotation in the Rect class (#782)
* Drag outside of iframe now works better, as long as both pages are on the same domain (#790)
* Coordinate conversion now takes rotation into account (#796)
* Support tile-less IIIF as per LegacyTileSource (#816)
* You can now give an empty string to the tabIndex option (#805)
* Fixed issue with rotation and clicking in the navigator (#807)
* Broadened the check for mime type in LegacyTileSource URLs to allow query strings (#819)
* Added globalCompositeOperation option for tiledImage, to allow for different transfer modes (#814)
* Added Viewer.addSimpleImage method for easily adding non-tiled images (#827)
* DziTileSource now works properly with DZI files that have no extension (#835)
* Fixed content clipping with rotation (#463, #567 and #833)
* Fixed navigator not being rotated when viewport rotation is set in constructor (#840)
* Fixed: Viewer.setMouseNavEnabled wasn't affecting all of the viewer's trackers (#845)
* Fixed: with scrollToZoom disabled, the viewer caused page scrolling to slow down (#858)
* Added Viewer.getOverlayById and Overlay.getBounds functions (#853)
* Tiled images with 0 opacity no longer load their tiles or do drawing calculations (#859)
* Fixed issue with edge smoothing with PNG tiles at high zoom (#860)
* Fixed: Images with transparency were clearing images layered below them (#861)
* Fixed issue causing HTML pages to jump unwantedly to the reference strip upon loading (#872)
* Added addOnceHandler method to EventSource (#887)
* Added TiledImage.fitBounds method (#888)
* Overlays can now be scaled in a single dimension by providing a point location and either width or height (#896)
* Added full rotation support to overlays (#729, #193)
* Viewport.goHome() now takes clipping into account (#910)
* Improved zoom to point (#923)
* Optimized sketch canvas clearing and blending for images with opacity or transfer modes (#927)
* Now taking rotation into account in viewport getBounds and fitBounds methods (#934)
* Added option to disable navigator auto-fade (#935)
* Fixed issue with maintaining viewport position with full screen (#940)
* Fixed an issue with simultaneous touch events (#930)
* Avoid loading clipped out tiles (#939)
* Improved precision for subtle moves with fitBounds (#939)
* Fixed an issue in viewer.addTiledImage with replace:true when viewer has navigator (#948)
2.1.0:
* BREAKING CHANGE: the tile does not hold a reference to its image anymore. Only the tile cache keep a reference to images.
* BREAKING CHANGE: TileSource.tileSize no longer exists; use TileSource.getTileWidth() and TileSource.getTileHeight() instead.
* DEPRECATION: let ImageRecord.getRenderedContext create the rendered context instead of using ImageRecord.setRenderedContext
* DEPRECATION: TileSource.getTileSize() is deprecated. Use TileSource.getTileWidth() and TileSource.getTileHeight() instead.
* Changed resize behaviour to prevent "snapping" to world bounds when constraints allow more space (#711)
* Added support for non-square tiles (#673)
* TileSource.Options objects can now optionally provide tileWidth/tileHeight instead of tileSize for non-square tile support.
* IIIFTileSources will now respect non-square tiles if available.
* Added new tile source for simple images: ImageTileSource (#760)
* Optimized adding large numbers of items to the world with collectionMode (#735)
* Registers as an AMD module where possible (#719)
* Added "tile-loaded" event on the viewer allowing to modify a tile before it is marked ready to be drawn (#659)
* Added "tile-unloaded" event on the viewer allowing to free up memory one has allocated on a tile (#659)
* Added 'tile-load-failed' event (#725)
* Added additional coordinates conversion methods to TiledImage (#662)
* Added `preserveImageSizeOnResize` option (#666)
* Added collectionColumns as a configuration parameter (#680)
* Added option in addTiledImage to replace tiledImage at index (#706)
* Added autoRefigureSizes flag to World for optimizing mass rearrangements (#715)
* You can now change viewport margins after the viewer is created (#721)
* Added a patch to help slow down the scroll devices that fire too fast (#754)
* Fixed flickering tiles with useCanvas=false when no cache is used (#661)
* 'display: none' no longer gets reset on overlays during draw (#668)
* Better error reporting for tile load failures (#679)
* Added XDomainRequest as fallback method for ajax requests if XMLHttpRequest fails (for IE < 10) (#693)
* Now avoiding using eval when JSON.parse is available (#696)
* Rotation now works properly on retina display (#708)
* Fixed issue with tiledImages loading tiles at every level instead of just the best level (#728)
* Fixed placeholderFillStyle flicker (#727)
* Fix for Chrome (v45) issue that key is sometimes undefined outside of the for-in loop (#730)
* World.removeAll now cancels any in-flight image loads; same for Viewer.open and Viewer.close (#734)
* Fixed overlays position (use rounding instead of flooring and ceiling) (#741)
* Fixed issue with including overlays in your tileSources array when creating/opening in the viewer (#745)
* Fixed issue in iOS devices that would cause all touch events to fail after a Multitasking Gesture was triggered (#744)
* Fixed an issue with TiledImage setPosition/setWidth/setHeight not reliably triggering a redraw (#720)
* Fixed zooming in with plus key on a Swedish keyboard (#763)
2.0.0:
* True multi-image mode (#450)
* BREAKING CHANGE: Passing an array for the tileSources option is no longer enough to trigger sequence mode; you have to set the sequenceMode option to true as well
* BREAKING CHANGE: Navigator no longer sends an open event when its viewer opens
* BREAKING CHANGE: Viewer.drawers and Viewer.drawersContainer no longer exist
* BREAKING CHANGE: A Viewer's Drawer and Viewport are now made once per Viewer and reused for every image that Viewer opens (rather than being recreated for every open); this means if you change Viewer options between opens, the behavior is different now.
* DEPRECATION: use Viewer.addTiledImage instead of Viewer.addLayer
* addTiledImage supports positioning config properties
* DEPRECATION: use World.getItemAt instead of Viewer.getLayerAtLevel
* DEPRECATION: use World.getIndexOfItem instead of Viewer.getLevelOfLayer
* DEPRECATION: use World.getItemCount instead of Viewer.getLayersCount
* DEPRECATION: use World.setItemIndex instead of Viewer.setLayerLevel
* DEPRECATION: use World.removeItem instead of Viewer.removeLayer
* DEPRECATION: use World.needsDraw instead of Drawer.needsUpdate
* DEPRECATION: use TileCache.numTilesLoaded instead of Drawer.numTilesLoaded
* DEPRECATION: use World.resetItems instead of Drawer.reset
* DEPRECATION: use Drawer.clear and World.draw instead of Drawer.update
* DEPRECATION: the layersAspectRatioEpsilon option is no longer necessary
* DEPRECATION: Viewer's add-layer event is now World's add-item event
* DEPRECATION: Viewer's layer-level-changed event is now World's item-index-change event
* DEPRECATION: Viewer's remove-layer event is now World's remove-item event
* DEPRECATION: Viewer's add-layer-failed event is now add-item-failed
* DEPRECATION: TileSourceCollection has been retired in favor of World
* DEPRECATION: collectionMode no longer draws outlines or reflections for items
* Drawer has been split into three classes:
* TiledImage, tile management and positioning for a single tiled image
* TileCache, tile caching for all images
* Drawer, tile drawing for all images
* New class: World, keeps track of multiple images in the scene
* Viewer now has world and tileCache properties
* Rect and Point now have clone functions
* New Viewport method for managing homeBounds as well as constraints: setHomeBounds
* Viewport.open supports positioning config properties
* For multi-image open, drawing isn't started until all tileSources have been opened
* You can specify a clip area for each image (only works on browsers that support the HTML5 canvas) (#594)
* Added placeholderFillStyle so image rectangles can be drawn even before their tiles load (#635)
* Ability to set opacity on individual TiledImages (#644)
* Margins option to push the home region in from the edges of the Viewer (#505)
* Rect and Point toString() functions are now consistent: rounding values to nearest hundredth
* Overlays appear in the DOM immediately on open or addOverlay (#507)
* imageLoaderLimit now works (#544)
* Turning off scrollToZoom in gestureSettings now allows scroll events to propagate
* You can now set a minZoomLevel that's greater than the home zoom level
* Added union() to OpenSeadragon.Rect
* Fixed an error in fitBounds if the new and old bounds were extremely close in size
* Added ajaxWithCredentials option (#543)
* Added viewport-change event for after the viewport changes but before it's drawn
* A spring's current value is now updated immediately on reset (#524)
* Fixed an error in fitBounds that occurred sometimes with immediately = true
* Added support for HDPI (retina) displays (#583)
* Corrected IIIF tile source to use canonical syntax (#586)
* Fixed x/y typo that caused horizontal reference strip to be rendered only relative to height (#595)
* Fixed Firefox 35 not able to open local files (#588)
* Fixed an issue with zero size viewers in IE8 (#609)
* Fixed: Cross Origin policy not working (#613)
* Optimized tile loading by clearing the queue on a re-draw when imageLoaderLimit is set (#616)
* Now animating zoom spring exponentially (#631)
* Added http://editorconfig.org/ config file (#637)
* Keyboard pan speed is now the same regardless of zoom level (#645)
1.2.1:
* Added preserveOverlays option (#561)
* Fixed: DZI tilesource was broken on IE8/IE9 (#563)
* Exposed secondary pointer button (middle, right, etc.) events from MouseTracker and through viewer (#479)
* MouseTracker - Improved IE 8 compatibility (#562)
* MouseTracker - Improved IE 9+ compatibility (#564)
* MouseTracker - Simulated touchenter/touchleave events now bubble to parent element MouseTrackers (#566)
* MouseTracker - Improved multitouch support in enter/exit event handlers (#566)
* MouseTracker - orphaned tracked touch pointers removed (fix for #539)
* MouseTracker - removed touchenter/touchleave event support since the events don't exist on any known platform and have been removed from the W3C specification (#566)
* Removed Viewer onContainerPress/onContainerRelease handlers (and the associated 'container-release' event ) that were never fired due to the canvas (child) element capturing the DOM events (#566)
* Added 'canvas-enter', 'canvas-exit', and 'canvas-press' events to Viewer (#566)
* ButtonGroup - removed obsolete MouseTracker event handlers (#566)
* MouseTracker - added keydown and keyup handlers (#568)
* Modifier keys ignored in keyboard navigation handlers (#503)
* Requesting keyboard focus when viewer is clicked (#537)
* Arrow key navigation fixed across platforms (#565)
* Removed textarea element from viewer DOM. Viewer.canvas now handles keyboard navigation (#569)
* Removed 'position' property from MouseTracker keyDownHandler/keyUpHandler/keyHandler functions (#573)
* Fixed pointer event model detection for IE 10 and IE 11 (#571)
* Added setMouseNavEnabled() support to Navigator (#572)
* MouseTracker now defaults to tracking on (#558)
* Removed Viewer focusHandler/onCanvasFocus (#577)
* Added tabIndex option to viewer (#577)
1.2.0:
* New combined IIIF TileSource for 1.0 through 2.0 (#441)
* BREAKING CHANGE: Removed IIIF1_1TileSource (now that IIIFTileSource supports all versions)
* Allowed TileSources to have dynamic tileSize via source.getTileSize(level) (#441)
* DEPRECATION: Use .getTileSize(level) instead of .tileSize
* Fix for IIPServer-style urls when using DZI (#413)
* Fix memory leak while destroying the viewer (#421)
* Added fitBoundsWithConstraints() to the viewport (#423)
* Fixed MouseTracker cross-browser issues with tracking pointers over and out of the tracked element (pull request #448, fix for #152, #404, #420, and #427)
* Fixed incorrect flick direction after image is rotated (#452)
* Debug mode now works with rotate images (#453)
* Now supporting dzi xml with namespaces (#462)
* You can now rotate the navigator along with the main viewer (#455)
* Viewport.setRotation now allows all rotation angles (#466)
* Pinch rotate is now available (defaults to off) (#468)
* Added option for home button to fill viewer (#474)
* Better handling of mid-update image loaded callbacks (#409)
* Tracked pointers are now cleaned up when Viewer.setMouseNavEnabled(false) is called (#518)
* Added explicit pointer capture for touch event model touchstart events (#552)
1.1.1:
* Fixed issue with dragging the navigator highlight on Webkit browsers (#395)
* Improved Viewer Options Support in Gesture Handling (#399)
1.1.0:
* BREAKING CHANGE: the openseadragon-canvas element now has two child divs. This means: (#298)
* The drawer element is no longer accessible via viewer.canvas.firstChild but via viewer.drawersContainer.firstChild or viewer.drawer.canvas.
* The overlays elements are no longer accessible via viewer.canvas.childNodes but via viewer.overlaysContainer.childNodes or viewer.currentOverlays[i].element.
* BREAKING CHANGE: Pseudo full screen mode on IE<11 using activex has been dropped. OpenSeadragon will run in full page if full screen mode is requested.
* BREAKING CHANGE: MouseTracker touch pinch gestures are no longer converted to scroll events. MouseTracker.pinchHandler should be used instead. (#369)
* DEPRECATION: overlay functions have been moved from Drawer to Viewer (#331)
* DEPRECATION: OpenSeadragon.cancelFullScreen has been renamed OpenSeadragon.exitFullScreen (#358)
* DEPRECATION: The 'isTouchEvent' property passed in MouseTracker events is deprecated and has been replaced with 'pointerType', which is a String value "mouse", "touch", "pen", etc. to support multiple simultaneous pointing devices (#369)
* DEPRECATION: The 'buttonDownAny' property passed in MouseTracker enter and exit events (enterHandler/exitHandler) is deprecated and has been replaced with 'buttons', which indicates the button(s) currently pressed (#369)
* DEPRECATION: The 'buttonDownAny' property passed in Viewer's 'container-enter' and 'container-exit' events is deprecated and has been replaced with 'buttons', which indicates the button(s) currently pressed (#369)
* Added layers support. Multiple images can now been displayed on top of each other with transparency via the Viewer.addLayer method (#298)
* Improved overlay functions (#331)
* Fixed: Nav button highlight states aren't quite aligned on Firefox (#303)
* Added ControlAnchor options for default controls (#304)
* Enabled basic cross-domain tile loading without tainting canvas (works in Chrome and Firefox) (#308)
* Added crossOriginPolicy drawer configuration to enable or disable CORS image requests (#364)
* Disabled CORS by default (#377)
* Added a ControlAnchor.ABSOLUTE enumeration. Enables absolute positioning of control elements in the viewer (#310)
* Added a 'navigator-scroll' event to Navigator. Fired when mousewheel events occur in the navigator (#310)
* Added a navigatorMaintainSizeRatio option. If set to true, the navigator minimap resizes when the viewer element is resized (#310)
* Added 'ABSOLUTE' as a navigatorPosition option, along with corresponding navigatorTop, navigatorLeft options. Allows the navigator minimap to be placed anywhere in the viewer (#310)
* Enhanced the navigatorTop, navigatorLeft, navigatorHeight, and navigatorWidth options to allow a number for pixel units or a string for other element units (%, em, etc.) (#310)
* Additional enhancements for IIIF support (#315)
* Fixed: Setting degrees in Viewer constructor has no effect (#336)
* Added pre-draw event for tiles to allow applications to alter the image (#348)
* Added optional Rotate Left/Right buttons to standard controls (#341)
* Added optimization for large numbers of overlays: `checkResize = false` option for OpenSeadragon.Overlay (#365)
* Updated full screen API, adding support for Opera and IE11 and allowing keyboard input in Chrome (#358)
* Various fixes to bring OpenSeadragon into W3C compliance (#375)
* Added separate flags for turning off each of the nav buttons (#376)
* Added support for query parameters in DZI tileSource URL (#378)
* Enhanced MouseTracker for multi-touch (#369)
* Added support for tracking multiple touch-points on multiple/simultaneous pointing devices
* Added support for the W3C Pointer Events event model. Enables touch/multi-touch on IE10+
* Added a dragEndHandler event callback, called when a drag gesture ends
* Added a pinchHandler event callback, called as a pinch gesture (2 touch points) is occurring
* Added real-time velocity (speed and direction) tracking to drag operations. 'speed' and 'direction' values are passed in the dragHandler and dragEndHandler event data
* Enhanced Viewer for multi-touch (#369)
* Added pinch zoom with the new MouseTracker pinchHandler. The 'pan' and 'zoom' Viewer events can be used to detect changes resulting in pinch gestures
* Added a "canvas-pinch" event fired by the pinch event handler
* Added flick gesture with the new MouseTracker dragEndHandler
* Added a "canvas-drag-end" event fired by the drag-end event handler
* Added a GestureSettings class for per-device gesture options. Currently has settings to enable/disable zoom-on-scroll, zoom-on-pinch, zoom-on-click, and flick gesture settings.
* Added GestureSettings objects for mouse, touch, and pen devices to the Viewer options giving users the ability to customize gesture handling in the viewer
* Added velocity (speed and direction) properties to the "canvas-drag" event
* Added double-click gesture detection to MouseTracker with corresponding dblClickHandler event callback (#392)
* Added zoom on double-click feature to Viewer, with corresponding dblClickToZoom option added to the GestureSettings class (#392)
* Made it possible to run OpenSeadragon from local filesystem on some browsers (#379)
1.0.0:
NOTE: This version has a number of breaking changes to the API, mostly in event handling. See below.
* BREAKING CHANGE: All EventSource and MouseTracker event handler method signatures changed to 'handlerMethod(event)' where event == { eventSource, userData, ... } (#251) (Also fixes #23, #224, #239)
* The new eventSource property in the event object replaces the old eventSource parameter that was passed to handler methods.
* Where the event object duplicated the eventSource value, those properties have been removed. This affects the following events:
* All Button events - 'button' property removed
* All Viewer (Viewer, Drawer, Viewport) events - 'viewer' property removed
* BREAKING CHANGE: Renamed EventHandler to EventSource (#225)
* BREAKING CHANGE: Event names changed for consistency: changed to lower case, compound names hyphenated, and "on" prefixes removed (#226):
* Viewer "animationstart" changed to "animation-start"
* Viewer "animationfinish" changed to "animation-finish"
* Button "onPress" changed to "press"
* Button "onRelease" changed to "release"
* Button "onClick" changed to "click"
* Button "onEnter" changed to "enter"
* Button "onExit" changed to "exit"
* Button "onFocus" changed to "focus"
* Button "onBlur" changed to "blur"
* BREAKING CHANGE: Numerous improvements to fullPage/fullScreen (#256):
* Retains zoom/pan position better when switching into and out of fullPage.
* Retains scroll position when switching back out.
* More resilient to styling variations on the page.
* setFullPage no longer automatically engages fullScreen; there's now a separate setFullScreen.
* 'fullpage' event is now 'full-page'.
* The `fullpage` property of the 'full-page' event is now `fullPage`.
* There is now a 'full-screen' event with a `fullScreen` property (true if it has gone to full screen).
* There are now 'pre-full-page' and 'pre-full-screen' events that include a `preventDefaultAction` property you can set in your handler to cancel. They also have `fullPage` and `fullScreen` properties respectively, to indicate if they are going into or out of the mode.
* BREAKING CHANGE: Removed the 'onPageChange' callback from the viewer options. Viewer.goToPage() now raises the 'page' event only (#285)
* Major documentation improvements (#281)
* MouseTracker now passes the original event objects to its handler methods (#23)
* MouseTracker now supports an optional 'moveHandler' method for tracking mousemove events (#215)
* Added stopHandler to MouseTracker. (#262)
* Fixed: Element-relative mouse coordinates now correct if the element and/or page is scrolled (using new OpenSeadragon.getElementOffset() method) (#131)
* Fixed: Pinch zoom event issue, regressive issue from previous event system changes (#244)
* Added IIIF Image API 1.1 Tile Source (#230)
* IIIF 1.0 now uses pixel based syntax (#249)
* Fixed: Touch event issue where no canvas-click events were being raised (#240)
* Check that zoom reference point is valid before using it in zoomTo and zoomBy (#247)
* Added a number of easier coordinate conversion methods to viewport (#243)
* Added the ability to create a viewer and start at a specified page (#252)
* Fixed image resolve issue with collection mode (#255)
* DOM events are now passed through as 'event.originalEvent' in viewer and button events where appropriate. (#257) Affects the following events:
* Viewer: 'canvas-release', 'canvas-click', 'canvas-drag', 'canvas-scroll', 'container-enter', 'container-exit', 'container-release'
* Button: 'enter', 'exit', 'press', 'release', 'focus', 'blur', 'click'
* Fixed: IE 10 not reading DZI file correctly in certain circumstances (#218)
* Added support for the 'wheel' DOM mousewheel event (#261)
* Fix for non-canvas tile rendering at large size (#264)
* Drawer now uses an HTML5 canvas element whenever it's available. Can be overridden with the Viewer.useCanvas option (#191)
* Added a boolean preventDefaultAction property (default false) to the event object passed to MouseTracker handler methods. (#270) Implemented in the following MouseTracker subscribers:
* Viewer.keyboardCommandArea.innerTracker.focusHandler: preventDefaultAction == true prevents scrolling viewer into view
* Viewer.keyboardCommandArea.innerTracker.keyHandler: preventDefaultAction == true prevents viewer keyboard navigation
* Viewer.innerTracker.clickHandler: preventDefaultAction == true prevents viewer zoom on click
* Viewer.innerTracker.dragHandler: preventDefaultAction == true prevents viewer panning with mouse/touch
* Viewer.innerTracker.scrollHandler: preventDefaultAction == true prevents viewer zooming on mousewheel/pinch
* Fixed: IE8 error with custom buttons - "Object doesn't support this action" (#279)
* Support IIIF servers that don't report tile dimensions (#286)
* Added an autoResize option. Default is true. When set to false, the viewer takes no action when its container element is resized. (#291)
* Added a static 'version' property to OpenSeadragon. Useful for plugins that require specific OpenSeadragon versions. (#292)
0.9.131:
* Fixed: canvas-click event shouldn't fire as you drag (#198)
* Fixed: LegacyTileSource doesn't fail gracefully when no supported file formats are found (#202)
* Added an optional userData argument to EventHandler.addHandler() which is passed unchanged to the handler method (#203)
* Fixed AJAX error reporting on IE8 (#208)
* Added viewportToImageRectangle method, and updated imageToViewportRectangle, imageToViewportCoordinates, and viewportToImageCoordinates to be more flexible with params (#212)
* Fixed: Viewer is not responsive (css) after returning from full screen (#222)
0.9.130:
* Added partial support for rotation (just 90 degree increments for now). (#185)
* Hiding and restoring broke the viewer; fixed (#177)
* You can now provide an onDraw function for overlays to do custom overlay manipulation (#160)
* Added a destroy function on the viewer to clean up and remove elements (#179)
* Fixed: navigatorPosition option corrected. (#163)
* OpenSeadragon.now() returned undefined the first time; fixed
* onTouchEnd did not call the correct mouse up handler; fixed (#159)
* Touch events no longer capture mouse (was causing issues on devices that support both) (#168)
* Clicking on a button control no longer refreshes page (#184)
* Drawer now works when the page is rtl (#187)
* Fixed a situation that could throw errors in touch handling (#188)
0.9.129:
* Fixed: navigator image not updating when base zoom image is changed (#147)
* Fixed tile rendering issue at lower zoom levels with the IIIF TileSource (#55)
* On IE, ajax errors would cause an exception to be thrown; fixed (#144)
* Faster and more consistent millisecond getter (#138)
* Fixed an error when using navPrevNextWrap on single images (#135)
* Various fixes to our timer handling (#133)
* Now generating source map for openseadragon.min.js (#51)
* Fix for calculating overlay width / height (#142)
* JSHint tidying (#136)
* Improved Ajax method (#149)
* Overhauled AJAX error reporting (#151)
0.9.128:
* The navigator is now off by default (#102)
* Reverted minPixelRatio to 0.5 for better quality (#116)
* Sometimes tiles wouldn't resolve if you used the blendTime option; fixed. (#95)
* You can now choose to have previous and next buttons wrap using the config.navPrevNextWrap. (#114)
* You can now specify an ID for a div to hold the navigator (#46)
* You can now click in the navigator to go to a new location (#46)
* Keyboard handling is now done in the viewer rather than navigator (#46)
* Additional navigator fixes (#46)
* Drawer events now fire properly (#94)
* Fixed an error in EventHandler.removeHandler() (#48)
* Better requestAnimationFrame detection on older Firefox (#103)
* More efficient navigator loading (#115)
* Simplified element opacity setting implementation (#123)
0.9.127:
* Fixed a problem with getString when the string property is a sub-property. (#64)
* Fixed: Tooltips for Navigation Controls not displaying (#63)
* Cleaned up some diagnostic code that was broken.
* Added fullpage class to viewer element when in fullpage mode (#61)
* Reverted to original New BSD license; cleaned up license declarations (#89)
0.9.126:
* DZI JSONp was broken; fixed.
0.9.125:
* Fully deprecated OpenSeadragon.createFromDZI, safely deprecated Viewer.openTileSource and
Viewer.openDZI to use Viewer.open internally. (#53 & #54).
* Full page bug fix for when viewer is child of document body (#43).
* Overlays for DZI bug fix (#45).
* DziTileSource: avoid changing relative paths (#56).
* Fix typo in preserveViewport handling (#77).
* Fix updateMulti timer leak after multiple Viewer.open() calls (#76).
* Minor documentation fixes.
0.9.124:
* Performance enhancements.
0.9.123:
* Real fullscreen support.
0.9.122:
* Performance enhancements.
0.9.121:
* Touch pan now works on Android.
* Pinch zoom is better on all devices.