Opera 12.00 snapshot 1317：提高 CSS 单位精度

此 Opera Next 新版的 Presto 内核版本已升至 2.10.269。

此版本采用一种统一的方法处理布局所使用的定点数值（长度、字体尺寸）。以往采用的限制多又不精确的旧方法——把百分比和 em 值圆整为最接近的整数，将被更优良的新方法取代。

更新日志除此之外似乎也相当充实的样子。

已知问题

• DSK-358417 升级导致扩展的设置和本地储存(localstorage)丢失
  —变通以克服的办法是卸载扩展，重启 Opera 再重装扩展（我不知道这算什么克服办法，只好直译。“卸载扩展”也没说清楚是升级 Opera 12 前卸载还是升级后卸载，大家小心为妙，升级前最好备份。扩展数据存放在 profile 里面的 widgets 文件夹当中）
• 载入页面非常快(Very fast page loading) ?_?
• 使用地址栏小星星菜单添加书签可能导致假死或崩溃

下载地址

• Windows
• Mac
• Linux/FreeBSD

更新日志

• 提高稳定性
• 对 Media Queries 的实现和目前最新草案同步
• 提高和统一大部分 CSS 尺寸属性值的精度
• 硬件加速渲染性能小幅度提升
• CORE-42332 (Frames not printed)
• CORE-40370 (Unstyled content while page with multiple stylesheets)
• CORE-43099 (New XMLHttpRequest responseType “json”)
• CORE-43117 (External JSON.stringify() testsuites failures)
• CORE-28562 (Does not handle dates past 2038 even when time is 64 bit)
• CORE-43154 (XMLDocument has no elementFromPoint)
• CORE-43146 (In regex \s incorrectly does not match BOM)
• CORE-43119 (validation error on submitting form with input type=”number” with value 5210000010001001)
• CORE-43317 (Upgrade SQLite to 3.7.9)
• CORE-43265 (Gstreamer initialized on every page load)
• CORE-1588 (initEvent on dispatched event must have no effect)
• CORE-43247 (race condition leads to same-origin-policy bypass)
• CORE-43232 (Implement getUserMedia options object)
• CORE-42697 (Bad webfonts cause never-stop-loading (dn.se never finishes loading))
• CORE-42761 (Hidden SVG element prevents hover of underlying element in Raphael.js)
• CORE-40831 (Web SQL database – big int column not being returned correctly)
• CORE-43209 (Wrong status code is given in the onreadystatechange handler for XMLHttpRequests (XHR2, CORS) to targets from other origin)
• CORE-43260 (bgcolor=transparent (on
  ) is not ignored)
• CORE-42545 (crash when running IDNA2008 tests)
• CORE-43519 (Opera doesn’t prompt for user/pwd for proxy https)
• CORE-35564 (reload (or refresh from cache) of the document with objects does not preserve position)
• CORE-43550 (The new ecmascript timer code can hang)
• CORE-43372 (XHR POST with explicit content-type and no entity body fails)
• CORE-43492 (MediaStreamOptions unsupported (DOM.Media.getUserMedia))
• CORE-43493 (Crash on reloading of multiple origin camera test)
• CORE-33779 (Character encoding of cached stylesheet not re-evaluated for new referring document)
• CORE-42348 (Replacement character shown in Mercado Libre search – SCRIPT tag’s charset attribute ignored when set from script)
• CORE-43365 (synthetic keypress events exhibit flaky failures)
• CORE-43423 (Text inside button with display:block is selectable)
• CORE-42748 (Opacity ignored for inline-block transform rotated to a certain angle)
• CORE-38167 (if max-width is used for absolutely positioned element with zero offsets and auto margins, the margins are incorrectly set to zero)
• CORE-43398 (Missing 64-bit architecture information in the User Agent)
• CORE-42133 (SVG mask transparency inserted via javascript does not work)
• CORE-43478 (constants on DOMException interface have writable and configurable set to true)
• CORE-43480 (constants on Node interface are writable and configurable)
• CORE-43357 (XHR firing error event on response status codes != 200)
• CORE-43467 (drawImage(video) aspect ratio correction must use float arithmetic)
• CORE-43297 (CSS cursor rule is not working on <input> elements)
• CORE-15578 (Number.prototype.toString() not accurate for large numbers and radix not equal to 10)
• CORE-43444 (selectionStart/selectionEnd after value change don’t work correctly in a text field)
• CORE-42043 (Improve parseInt performance)
• CORE-43589 (Severe slowdown with urlfilter.ini and data:image)
• CORE-7897 (Line numbers of stack traces of inline elements are reported relative to the SCRIPT tag)
• CORE-21925 (JavaScript -> <textarea>s -> onscroll event inoperative)
• CORE-42347 (PageDown / Up scroll amount should depend on window size)
• CORE-43672 (Crashes on pages with invalid character encodings)
• CORE-43466 (Animated SVG with display: none trigger slow repaint of the whole view)
• CORE-43564 (Setting “border-radius” to “inherit” fails)
• CORE-43092 (Make Array.prototype.{join, concat} faster)
• CORE-43574 (Calling preventDefault() on non-cancelable events should have no effect)
• CORE-8358 (innerHTML in XML doesn’t output namespace declarations correctly)
• CORE-41036 (Fix for crashes on 64-bit)
• CORE-42504 (Linear gradient is visually broken)
• CORE-43597 (Incorrect cache resolution over string values)
• CORE-43324 (CSS import test takes too long to load)
• CORE-43716 (Dropdown menu on blocket.se impossible to use – pops up when it should close.)
• CORE-42674 (Expose readonly properties per WebIDL (like Event.target))
• CORE-43302 (load events fire on LINK elements pointing to existing local resources (link rel=”stylesheet” href=”file://…”))
• CORE-43035 (Origami 3D Engine is slow in Opera because of slow blending)
• CORE-42466 (Scrolling list items too fast on Mac)
• CORE-43683 (Canvas: shadow prevents subsequent fill)
• CORE-38715 (Incorrect ‘inset’ box-shadow if border-top-width=0 xor border-left-width=0)
• CORE-23426 (Punctuation class Pc should not be included in ::first-letter)

[ Via Opera Desktop Team – Opera.IM 编译]