7604 2006-03-04 19:28:04 -0800 calcAbsoluteHorizontalValues() is being getting passed arguments in the wrong order in calcAbsoluteHorizontal() 2006-05-13 10:28:31 -0700 1 1 1 Unclassified WebKit Layout and Rendering 420+ Mac OS X 10.4 RESOLVED FIXED P2 Normal --- 1 sam webkit-unassigned oldest_to_newest 35106 0 sam 2006-03-04 19:28:04 -0800 In the function calcAbsoluteHorizontal() in render_box.cpp, the function call to calculate the horizontal values for the MaxWidth case: calcAbsoluteHorizontalValues(MaxWidth, cb, cw, static_distance, pab, l, r, maxW, maxML, maxMR, maxX); should read: calcAbsoluteHorizontalValues(MaxWidth, cb, cw, pab, static_distance, l, r, maxW, maxML, maxMR, maxX); (ie. flip the variables pab and static_distance) 35295 1 sam 2006-03-06 09:45:01 -0800 Now this is fun. Upon closer inspection of the code, it seems to me that the static_distance variable is not even needed in calcAbsoluteHorizontalValues() as the case when it might be used (when left == AUTO && width != AUTO && right == AUTO ) is never used. This is because in calcAbsoluteHorizontal(), if both left and right == AUTO, one is always set to the static distance before calcAbsoluteHorizontalValues() is called. This, however, does not solve the problem of passing the wrong value for pab (which is the sum of the padding and borders), unless it can somehow be shown that it is always equal to the static distance, which I can't imagine is true. The is no way around it, this code is in need of a good cleaning. 36478 2 7094 sam 2006-03-15 11:53:10 -0800 Created attachment 7094 first attempt at cleanup I am attaching a first go at a clean up of the absolute positioning code in RenderBox. Among other things, it splits out the replaced element code-path to correspond with the separation in the css 2.1 spec, it gets rid of the use of a constant for AUTO, instead using the Length class, and generally cleans up the code by making variable names more clear, adding comments, and getting rid of dead code. As it is right now, the code has a lot of FIXME's left in it in places where I was unsure what the correct change should be. I would appreciate any feedback on any of these. If your not sure what I am talking about in the FIXME, please let me know and I will elaborate. The comments are also quite verbose as I have included the text of the spec completely. I found having the text in the code very useful while coding it, but if it is too much, will remove it. Additionally, I went a little 'const' crazy, but found it useful in that the compiler would tell me if I was changing something I really wanted to be const. Finally, although I said that this patch is just a first attempt, it does work. By that I mean it compiles fine and causes no regressions. I can't attest to preformance, but my assumption is that it should be a little faster, due to some straight forward optimizations made and the exclusion of deadcode paths. 37069 3 7194 sam 2006-03-20 13:27:40 -0800 Created attachment 7194 update patch This updates the previous patch to work after darin's big rename. 37073 4 7197 sam 2006-03-20 13:55:31 -0800 Created attachment 7197 test case for bad 'auto' value Adding a test case which demonstrates what happens if some decides to use a length of '-666666px' on an absolutely positioned element. 37550 5 mjs 2006-03-25 03:47:02 -0800 I'd like to review this but I think it really needs hyatt to look at it. 38426 6 7194 hyatt 2006-04-03 15:06:46 -0700 Comment on attachment 7194 update patch This looks like a really nice cleanup to me. I can't answer all of your FIXMEs actually, since many of them are questions I had as well that warrant more research. My inclination would be for a first cut to attempt to keep the behavior as close as possible to the original, calling out the problems just as you have. Then after landing this we can iterate. I assume you made sure this passes the layout tests? 38631 7 7532 sam 2006-04-05 14:59:08 -0700 Created attachment 7532 patch 3 This is a slightly cleaner version of the patch which removes most of the repeated FIXME's with 3 big FIXME's at the top and makes a few more slight optimizations such as not calculating for 'right' and 'bottom' when they are not needed. It also includes some changes that were made to the current code regarding the static distance for 'top' when inside a table row. This patch compiles fine and passes all the layout tests, but is quite a big patch and therefore I'm woried that some behavior might have changed from the origanal as many of the corner cases are not tested in the suite. I agree with hyatt in that we should try to stick as closely to the origanal behavior as possible, but I don't really understand what he is proposing in his comment (if you could elaborate that would be great), 38730 8 mjs 2006-04-06 20:05:28 -0700 I think hyatt means to try to avoid deliberately changing the behavior for any corner cases, or at least add tests for anything that was changed. I'm assuming you didn't do anything of that sort on purpose. 38838 9 7605 sam 2006-04-09 15:38:55 -0700 Created attachment 7605 Test case show new margin behavior This is a test case which shows the incorrect current behavior of using the direction property of itself and not it's containing block when choosing which value (left or right) to ignore when overconstrained. 39576 10 hyatt 2006-04-17 17:42:53 -0700 Ok, let's get a new patch that includes the new test cases and layout test results as part of the patch. Then I can + it. 39578 11 7532 hyatt 2006-04-17 17:49:06 -0700 Comment on attachment 7532 patch 3 Will minus for now while waiting for test cases and layout tests results to be included in the patch. 41475 12 hyatt 2006-05-07 15:22:07 -0700 Any update here? This is great cleanup. Just need some tests. 41562 13 8177 sam 2006-05-08 18:56:10 -0700 Created attachment 8177 Patch (now with testcases) This beast of a patch now includes two new test cases and two updated ones. 42042 14 8177 hyatt 2006-05-11 14:24:35 -0700 Comment on attachment 8177 Patch (now with testcases) r=me. Love this patch. 42206 15 timothy 2006-05-13 10:27:05 -0700 Landed in r14351, r14355, r14356 and r14357 42209 16 timothy 2006-05-13 10:28:31 -0700 Layout tests updated in r14360. 7094 2006-03-15 11:53:10 -0800 2006-03-20 13:27:40 -0800 first attempt at cleanup pos.diff text/plain 54056 sam SW5kZXg6IHJlbmRlcmluZy9yZW5kZXJfYm94LmgKPT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gcmVuZGVyaW5nL3Jl bmRlcl9ib3guaAkocmV2aXNpb24gMTMzMDYpCisrKyByZW5kZXJpbmcvcmVuZGVyX2JveC5oCSh3 b3JraW5nIGNvcHkpCkBAIC0xNjIsMTEgKzE2MiwxOCBAQCBwcm90ZWN0ZWQ6CiAgICAgdm9pZCBv dXRsaW5lQm94KEdyYXBoaWNzQ29udGV4dCosIGludCBfdHgsIGludCBfdHksIGNvbnN0IGNoYXIg KmNvbG9yID0gInJlZCIpOwogCiAgICAgdm9pZCBjYWxjQWJzb2x1dGVIb3Jpem9udGFsKCk7Cisg ICAgdm9pZCBjYWxjQWJzb2x1dGVIb3Jpem9udGFsVmFsdWVzKExlbmd0aCB3aWR0aCwgY29uc3Qg UmVuZGVyT2JqZWN0KiBjYiwgCisgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg IGNvbnN0IGludCBjb250YWluZXJXaWR0aCwgY29uc3QgaW50IGJvcmRlcnNQbHVzUGFkZGluZywg 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