Tblog90 … bitácora de análisis cortos

Ya son las 10 de la mañana y estuve probando el nuevo Opera Alpha, y vaya que me gusto su nuevo “look”, por asi decirlo. Esta nueva versión cambia de núcle Presto 2.1 a la 2.2 y las características explícitas en la Web de Opera son:

 

Rendering

• Significant performance improvements
• Added Web font support, allowing the download of fonts specified in font descriptors in @font-face at-rules; TrueType (TTF), OpenType (OTF), and SVG fonts are supported (demos)
• Achieved 100/100 and pixel-perfect rendering on the Acid3 test
• Pretty-printing of unstyled XML (using unstyledxml.css in the Styles sub-directory of Opera’s installation directory)
• Added support for CSS3 RGBA color values (demo)
• Added support for CSS3 HSLA color values (demo)
• Added support for the CSS3 color: transparent value
• Improved HTML5 support, including end-tag and start-tag parsing, whitespace parsing, and DOCTYPE parsing
• CSS files must be served with the correct MIME type (“text/css”) in Strict mode or they will be ignored

JavaScript/DOM

• New regular expression engine, which greatly improves performance on regular-expression-heavy pages such as the SunSpider JavaScript Benchmark
• Added support for the W3C Selectors API
• Renamed the objects returned by getClientRects() and getBoundingClientRect() to ClientRectList and ClientRect instead of TextRectangle and TextRectangleList, respectively
• XMLHttpRequests will now trigger start-loading/end-loading events
• Removed the proprietary window.setDocument method
• Added support for the SVGElement.currentFps and SVGElement.targetFps properties to read and control, respectively, SVG frames per second
• The load event for scripts is now sent after the script is executed rather than before
• The load event is now sent to frame/iframe/object elements before it is sent to the document
• A highlight will no longer be added when HTMLElement.focus() is called unless keyboard navigation is already activated

Other

• Removed UTF-32 encoding support
• User JS files will now be executed in alphabetical order rather than file system order
• HTML5 canvas elements can now export images to the JPEG format
• HTML5 canvas transforms are applied when building a path, not when painting it (this change is made to work like Mozilla)
• The first ID (instead of the last) is now used on pages with duplicate IDs when navigating to fragment IDs
• Added support for the altGlyph element in SVGs
• Added support for 32-bit alpha in BMP and RLE-encoded BMP images
• Implemented HTML5′s algorithms for detecting charsets in HTML
• The http://www.w3.org/TR/REC-html40 namespace is no longer treated as an alias to http://www.w3.org/1999/xhtml

Para probarlo y poner en marcha su rapidez entre pestañas – que por cierto anda bastante buena – he aquí:

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