This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.

This archived bug list includes all the bugs for the product or component specified, including bugs that have been resolved.

Mon Apr 1 2019 03:30:46 UTC
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95 bugs found.
ID Product Comp Assignee Status Resolution Summary Opened Changed
7011 HTML WG pre-LC1 ian VERI NEED [in off-bug discussion] canvas accessible fallback provision is under specified 2009-06-10 2010-10-05
7183 HTML WG pre-LC1 ian VERI INVA Hum, ham eu acho que... sei, bom, acho que é isso mesmo, meu comentario é: ronaldo! 2009-07-31 2010-10-05
7245 HTML WG pre-LC1 ian VERI INVA canvas 2009-08-08 2010-10-05
7306 HTML WG pre-LC1 ian VERI FIXE add examples here 2009-08-16 2010-10-05
7384 HTML WG pre-LC1 ian VERI FIXE editorial: " (either an HTMLImageElement or an HTMLCanvasElement)" is missing HTMLVideoElement 2009-08-20 2010-10-05
7404 HTML WG pre-LC1 ian VERI FIXE "but only if the element is being rendered" needs to take into account <canvas> descendants if we're making them focusable 2009-08-23 2010-10-05
7507 HTML WG pre-LC1 ian VERI NEED Firefox 3.5 does NOT clear a canvas if its width is set to itself 2009-09-06 2010-10-05
7547 HTML WG pre-LC1 ian VERI WONT on .drawImage() negative widths or heights should flip/mirror the image. There's no easy way of fliping images in canvas 2009-09-08 2010-10-05
7662 HTML WG pre-LC1 ian VERI FIXE When images are disabled arguably fallback content of the <canvas> element should be shown. 2009-09-17 2010-10-05
7704 HTML WG pre-LC1 ian VERI WONT It is better to implement canvas.clear() method and allow to resize canvas without clearing it 2009-09-23 2010-10-05
7740 HTML WG pre-LC1 ian VERI DUPL Authoring advice for canvas is bad for accessibility 2009-09-28 2010-10-05
7833 HTML WG pre-LC1 ian RESO NEED The 'demand' event should fire on the canvas whenever it's apperance may affect display. It may occur before document's 'load' event or much later. It is like image fetching from network, it should be up to the browser, when it actually fire. May be helpf 2009-10-08 2010-10-05
7856 HTML WG pre-LC1 ian RESO FIXE When JavaScript or <canvas> is disabled <canvas> should be treated as an ordinary element and not a replaced element. 2009-10-09 2010-10-05
7891 HTML WG pre-LC1 ian RESO WORK Current stable Opera releases have at least partial support for canvas. 2009-10-11 2010-10-05
7967 HTML WG pre-LC1 ian VERI INVA ertertert 2009-10-19 2010-10-09
8108 HTML WG pre-LC1 ian RESO NEED There is no reference about the mouseover event judgment when the element(iframe,canvas, etc..) including the transparent shade comes in succession mutually, and it embarrasses it. I hope the judgment to be done as seen. 2009-10-28 2010-10-05
8153 HTML WG pre-LC1 ian RESO FIXE "The default is start. Other values are ignored." (et passim) would read better if the sentences are reversed ("possible values are [...]. Other values are ignored. The default is [...].") 2009-11-03 2010-10-05
8210 HTML WG pre-LC1 ian RESO FIXE Add drawFocusRing(x,y,w,h,element) which, if element is focused, draws a system focus ring at x,y,w,h. 2009-11-05 2010-10-05
8238 HTML WG pre-LC1 ian RESO WONT Add support for X3D 2009-11-08 2010-10-05
8331 HTML WG pre-LC1 ian CLOS FIXE Move the Canvas 2D context API into a separate spec 2009-11-18 2010-10-21
8396 HTML WG pre-LC1 ian RESO NEED clip() is fine, but why isn't there something like a stencil buffer? It's similar to clip except you turn on the stencil then render an image and only where you rendered the image are pixels rendered to the canvas. 2009-11-29 2012-02-29
8404 HTML WG pre-LC1 ian RESO WONT Refocus the figure element back to being a figure 2009-11-30 2010-10-05
8405 HTML WG pre-LC1 ian CLOS FIXE The setter method is defined with an octet argument, so type conversions will happen as defined by WebIDL before the setter implementation gets to see it, and so the setter will only see valid values (integers 0..255) and shouldn't define any rounding or 2009-11-30 2010-10-05
8476 HTML WG pre-LC1 ian RESO WONT <canvas> contexts 2009-12-11 2010-10-05
8487 HTML WG pre-LC1 ian CLOS FIXE "A future version of this specification will probably define a 3d context (probably based on the OpenGL ES API).": reference WebGL rather than a "future version of this specification"? [ms] 2009-12-13 2010-10-05
8597 HTML WG pre-LC1 ian CLOS FIXE paragraph-overlap problem also affects embed, svg, math? 2010-01-03 2010-10-05
8644 HTML WG pre-LC1 ian VERI WONT Fallback mechanism for embedded content 2010-01-05 2010-10-05
8654 HTML WG pre-LC1 ian RESO NEED canvas 2010-01-06 2010-10-05
8722 HTML WG pre-LC1 schwer CLOS FIXE focus behaviour should be same for canvas regions as for elements 2010-01-12 2012-11-15
8723 HTML WG pre-LC1 ian VERI NEED image map is underspecified 2010-01-12 2010-10-05
8804 HTML WG pre-LC1 ian RESO WONT I see no value in making the reader go through a paragraph saying what not to do. Despite that the list is infinite, authors will do whatever they want. And ultimately if they are using certain elements for a putpose different from the original it usually 2010-01-24 2010-10-05
8805 HTML WG pre-LC1 ian VERI INVA canvas 2010-01-24 2010-10-09
8863 HTML WG pre-LC1 ian RESO WONT I need a way of interrogating features drawn onto a canvas. I would like to use a canvas to represent layers/groups of features...which i control wholistically as well as interrogate individually. Think of a map for example....it has layers...where each l 2010-02-02 2010-10-05
8885 HTML WG pre-LC1 david100 RESO NEED Fallback mechanism for embedded content 2010-02-05 2013-01-16
8936 HTML WG pre-LC1 ian RESO FIXE A summary table of the types of content and what elements belong to each would be helpful 2010-02-10 2010-10-05
8956 HTML WG pre-LC1 ian VERI INVA what is this? 2010-02-12 2010-10-09
9008 HTML WG pre-LC1 ian VERI INVA canvas is sick 2010-02-16 2010-10-09
9061 HTML WG pre-LC1 ian CLOS WONT allow image maps on the canvas element. 2010-02-18 2012-11-15
9114 HTML WG pre-LC1 ian RESO FIXE "If the second argument isn't one of the allowed values, throws a SYNTAX_ERR exception." - incorrect copy-and-paste from the createPattern text 2010-02-22 2010-10-05
9132 HTML WG pre-LC1 ian RESO FIXE "if it is a number between 0.0 and 1.0" - what is a number? Is it something that WebIDL converts to an IDL double value in its 'any' conversion? Or does toDataURL("image/jpeg", "0.5") count as a number too? 2010-02-23 2010-10-05
9133 HTML WG pre-LC1 ian RESO FIXE "if it is a number between 0.0 and 1.0" - does 'between' mean inclusive or exclusive? 2010-02-23 2010-10-05
9135 HTML WG pre-LC1 ian RESO FIXE provide an inline link in the canvas section to the 2d context spec 2010-02-24 2010-12-07
9189 HTML WG pre-LC1 ian RESO WORK CanvasGradient should use parameters at the time of drawing 2010-03-04 2010-10-05
9190 HTML WG pre-LC1 ian RESO WONT What effects do fillText and strokeText have on the accessibility fallback (ADOM?)? Should they take a default to also adding it, as by canvas.appendChild(document.createTextNode(s))? (Then maybe add a 5th parameter to allow turning it off) -jJ 2010-03-04 2010-10-05
9191 HTML WG pre-LC1 ian RESO WONT Is there a way to get the text back out? e.g., context.getTexts returning an array of the character strings ever added with fillText and strokeText? -jJ 2010-03-04 2010-10-05
9246 HTML WG pre-LC1 ian CLOS INVA test est 2010-03-15 2010-10-05
9253 HTML WG pre-LC1 ian RESO WONT Calling putImageData() should force browsers to render the canvas to screen, otherwise animations won't work. 2010-03-16 2010-10-05
9307 HTML WG pre-LC1 ian RESO NEED I think the darker composite operation should be reintroduced. http://ajaxian.com/archives/harmony-canvas-drawing-tool for example. 2010-03-24 2012-02-29
9308 HTML WG pre-LC1 ian RESO DUPL I think the darker composite operation should be reintroduced. http://ajaxian.com/archives/harmony-canvas-drawing-tool for example. 2010-03-24 2010-10-05
9333 HTML WG pre-LC1 ian CLOS FIXE [ms] "The image argument is an instance of either HTMLImageElement, HTMLCanvasElement, or HTMLVideoElement. If the image is of the wrong type or null" WebIDL already ensures that it isn't of the wrong type, just check for null. 2010-03-26 2010-10-05
9402 HTML WG pre-LC1 ian RESO NEED save and restore dont function propely 2010-04-04 2010-10-05
9469 HTML WG pre-LC1 dave.null RESO WONT Shouldn't this paragraph link to #attr-canvas-width and #attr-canvas-height, rather than just saying "the respective content attributes of the same name"? 2010-04-09 2015-02-03
9566 HTML WG pre-LC1 ian RESO DUPL Please support line-types/styles [like dotted etc] !!! 2010-04-21 2012-02-29
9572 HTML WG pre-LC1 ian VERI INVA test for gears, i like it 2010-04-21 2010-10-09
9574 HTML WG pre-LC1 ian RESO NEED Floating point number tolerance 2010-04-22 2010-10-05
9584 HTML WG pre-LC1 ian RESO WORK drawImage() shouldn't throw INVALID_STATE_ERR 2010-04-23 2010-10-05
9596 HTML WG pre-LC1 ian VERI INVA lol lol lol lol wut 2010-04-27 2010-10-09
9633 HTML WG pre-LC1 ian RESO FIXE should read, "starts with one OF the exact strings" 2010-05-01 2010-10-05
9664 HTML WG pre-LC1 ian RESO NEED Detailing each of the parameters or the type of transformation matrix used or whether or not the matrix transforms the entire canvas state is required for context.transform and context.setTransform entries 2010-05-06 2010-10-05
9669 HTML WG pre-LC1 ian VERI INVA haloo asd as babrt 2010-05-06 2010-10-09
9710 HTML WG pre-LC1 ian RESO NEED Remove text on non-interactive, static, visual media 2010-05-11 2010-10-05
9714 HTML WG pre-LC1 ian RESO WONT Canvas element stops functioning at large widths 2010-05-12 2010-10-05
9736 HTML WG pre-LC1 ian RESO NEED Shouldn't be: "create a new subpath whose first point is the same as the previous subpath's last point"??? This whole sentence seems unclear to me reading explanation of "A closed path" in the beginning of this section. 2010-05-14 2010-10-05
9740 HTML WG pre-LC1 ian CLOS FIXE arcTo() -> should be "Adds a point to the current [subpath]..." 2010-05-15 2010-10-05
9818 HTML WG pre-LC1 ian RESO INVA context hello, my name is john 2010-05-28 2010-10-05
9819 HTML WG pre-LC1 ian VERI INVA context hello, my name is john 2010-05-28 2010-10-09
9822 HTML WG pre-LC1 ian RESO NEED We should be allowed multiple CanvasRenderingContext2D Objects for multitouch devices. By allowing only one context object, we can only draw one element at the time 2010-05-28 2010-10-05
9826 HTML WG pre-LC1 ian CLOS WONT How values can be in coordinate units if offsets are not affected by transformation matrix 2010-06-01 2010-10-05
9846 HTML WG pre-LC1 ian RESO WORK Lighter is here, but what about darker which is supported by most browsers? 2010-06-03 2010-10-05
9866 HTML WG pre-LC1 ian CLOS FIXE Define explicitly what should happen when maxWidth < 0 2010-06-06 2010-10-05
9930 HTML WG pre-LC1 ian RESO NEED Comments should be added to the example script and the example should be wrapped in a container like other examples in the page 2010-06-15 2010-10-05
9942 HTML WG pre-LC1 ian CLOS FIXE The sentence "The shadowBlur attribute specifies the size of the blurring effect." is misleading, It should say "The shadowBlur attribute specifies the level of the blurring effect." 2010-06-17 2010-12-22
10023 HTML WG pre-LC1 ian RESO FIXE Behavior of 'currentColor' in CanvasRenderingContext2D poorly defined 2010-06-27 2010-10-05
10085 HTML WG pre-LC1 ian RESO NEED should say what happens for negative values. test: http://philip.html5.org/tests/canvas/suite/tests/2d.strokeRect.negative.html 2010-07-05 2010-10-05
10086 HTML WG pre-LC1 ian VERI DUPL What if width and height are negative? I believe this should be specified. 2010-07-05 2010-10-22
10094 HTML WG pre-LC1 ian RESO WORK hello there. if the given context.font string has: "12px/2", shouldnt the evaluated string have "6px"? Otherwise I don't understand what the "/2" means. 2010-07-06 2010-10-05
10104 HTML WG pre-LC1 ian VERI INVA ssss adas asdsd 2010-07-07 2010-10-09
10126 HTML WG pre-LC1 ian RESO WONT The arc() function's last argument should be optional. Webkit doesn't require it, treating it as false if not provided. 2010-07-10 2010-10-05
10132 HTML WG pre-LC1 ian RESO FIXE A CanvasPattern object should have a way to offset the repetition of an image. 2010-07-11 2012-03-28
10169 HTML WG pre-LC1 ian CLOS INVA The discontinuity at shadowBlur = 8 here is weird. We have no interop on exact shadow algorithms right now anyway, so maybe it could be fixed in the spec? Clearly authors aren't depending on pixel-perfect canvas shadows. Maybe it should just be the num 2010-07-14 2010-10-05
10193 HTML WG pre-LC1 ian RESO WONT "If any of the arguments to the method are infinite or NaN, the method must raise a NOT_SUPPORTED_ERR exception." - this is redundant, since the spec earlier says "Except where otherwise specified, if a method with an argument that is a floating point num 2010-07-17 2010-10-05
10194 HTML WG pre-LC1 ian RESO FIXE "If the first argument to the method is null or not an ImageData object then the putImageData() method must raise a TYPE_MISMATCH_ERR exception." - it can be null but never not an ImageData (because WebIDL should enforce that) 2010-07-17 2010-10-05
10214 HTML WG pre-LC1 ian RESO FIXE In the "lighter" operator, it says "with color values approaching 1 as a limit". You mean "approaching 255" - color values are octets, not floats in [0,1]. 2010-07-20 2010-10-05
10310 HTML WG pre-LC1 ian VERI DUPL If I have a 100 by 100 pixel image and draw a filled rect of the same size at point {10, 10} the result is the bottom and right 90 pixels followed by the top and left 10 pixels. A way to offset the image so that it draws cleanly would be appreciated. A mo 2010-08-07 2010-10-22
10335 HTML WG pre-LC1 ian VERI DUPL a height property for the TextMetrics class would be extremely helpful; it is difficult to place text using a width value only. 2010-08-09 2010-10-22
10403 HTML WG pre-LC1 ian RESO WORK The argument to putImageData will be an ImageData object or null 2010-08-19 2010-10-05
10457 HTML WG pre-LC1 ian VERI DUPL Is obtaining the bounding box dimensions of the text ever intended to be part of the spec? Could you specify this? 2010-08-26 2010-10-22
10577 HTML WG pre-LC1 ian RESO FIXE The specification should state wether the anticlockwise parameter is required. Firefox requires it. Webkit does not and defaults to false and this is my preferred behavior. 2010-09-08 2010-10-05
10598 HTML WG pre-LC1 ian RESO INVA Net schlecht her specht 2010-09-10 2010-10-05
10647 HTML WG pre-LC1 ian RESO FIXE shadowBlur should be linear throughout rather than changing to sqrt() above 8px 2010-09-17 2010-10-05
10786 HTML WG pre-LC1 ian RESO WONT I think it would make more sense to apply shadows to individual sections of stroke() and fill() functions in the same context much the way stroke an fill colors can be changed inline between stroke() and fill() functions. This way you could apply differen 2010-09-27 2010-10-05
10799 HTML WG pre-LC1 ian RESO FIXE drawImage/pattern filters underspecified 2010-09-29 2010-12-08
10835 HTML WG pre-LC1 ian RESO FIXE "When the getContext() method of a canvas element is is to return ..." - too many ises 2010-09-29 2010-10-05
10926 HTML WG pre-LC1 ian RESO WONT fillText or strokeText behavior needs to preserve readability of text when using maxWidth 2010-10-01 2010-10-05
13578 HTML WG pre-LC1 ian RESO FIXE Argument for the approval of adding setElementPath to the Canvas 2d specification. 2011-08-03 2012-03-28
95 bugs found.
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