Facebook may already be a few years into that process. Its recent acquisition of the mysterious, possibly-OS-related startup osmeta provides another data point. Samsung, meanwhile, has just joined an exploratory project to develop a new web rendering engine.
WebKit is a browser engine developed by Apple and primarily used in its Safari web browser, as well as all iOS web browsers. WebKit's HTML and JavaScript engine started as a fork of the KHTML and KJS libraries from KDE, and has since been further developed by KDE contributors, Apple, Google, Nokia, Bitstream, BlackBerry, Sony, Igalia, and others.
Another KDE contributor at WebKit
Apple also released the WebCore API (application programming interface) called WebKit into open-source development. Hyatt said Apple would begin tracking bugs in public, and announced the launch of a public mailing list, webkit-dev@opendarwin.org, and a public IRC (Internet Relay Chat) channel, #webkit on irc.freenode.net.
"This is amazing! I'd never expect to see anything like this, especially from Apple--outstanding work!" wrote one commentator. "I'm very impressed that you did this," wrote another. "You basically addressed all the concerns the KDE people had, which is much more than you needed to do."
Debian 8 includes several browser engines which are affected by a steady stream of security vulnerabilities. The high rate of vulnerabilities and partial lack of upstream support in the form of long term branches make it very difficult to support these browsers with backported security fixes. Additionally, library interdependencies make it impossible to update to newer upstream releases. Therefore, browsers built upon the webkit, qtwebkit and khtml engines are included in Jessie, but not covered by security support. These browsers should not be used against untrusted websites.
WebKit2 has been around for Mac and iOS for longer, but the first stable release for WebKitGTK+ was the appropriately-versioned WebKitGTK+ 2.0, in March 2013. This release actually contained three different APIs: webkitgtk-1.0, webkitgtk-3.0, and webkit2gtk-3.0. webkitgtk-1.0 was the original API, used by GTK+ 2 applications. webkitgtk-3.0 was the same thing for GTK+ 3 applications, and webkit2gtk-3.0 was the new WebKit2 API, available only for GTK+ 3 applications.
But, since the original API was a maintenance burden and not as stable or robust as WebKit2, it was deleted after the WebKitGTK+ 2.4 release in March 2014. Applications had had a full year to upgrade; surely that was long enough, right? The original WebKit API layer is still maintained for the Mac, iOS, and Windows ports, but the GTK+ API for it is long gone. WebKitGTK+ 2.6 (September 2014) was released with only one API, webkit2gtk-4.0, which was basically the same as webkit2gtk-3.0 except for a couple small fixes; most applications were able to upgrade by simply changing the version number. Since then, we have maintained API and ABI compatibility for webkit2gtk-4.0, and intend to do so indefinitely, hopefully until GTK+ 4.0.
From the outside the would seem like the opposite would be true. Chromium runs on Linux supported by Google. WebKit does not run on Linux supported by Apple. Meaning WebKit running on Linux has no support from Apple themselves. On top of that some large double digit percentage of Googlers use Linux. I doubt 1% of Applers use Linux. In other words, Google needs Chromium to run on Linux. Apple does not need WebKit to run on Linux. On top of that; Chromium runs on ChromeOS, a Linux variant? And Android, another Linux variant?
WebKit started as a fork of the KHTML and KJS libraries from KDE,[1][9] and has since been further developed by KDE contributors, Apple, Google, Nokia,[9] Bitstream, BlackBerry, Sony, Igalia, and others.[10] WebKit supports macOS, Windows, Linux, and various other Unix-like operating systems.[11] On April 3, 2013, Google announced that it had forked WebCore, a component of WebKit, to be used in future versions of Google Chrome and the Opera web browser, under the name Blink.[12][13]
One way to check which greeters are available is to list the files in the /usr/share/xgreeters directory; each .desktop file represents an available greeter. In this example, the lightdm-gtk-greeter and lightdm-webkit2-greeter greeters are available:
The lightdm-webkit2-greeter allows you to choose a background image directly on the login screen. It also offers an option to display a random image each time it starts if you use the Material theme. By default, images are sourced from /usr/share/backgrounds. You can change the background images directory by editing lightdm-webkit2-greeter.conf. For example:
I have never heard of the Presto engine before. I thought there was only 3 engines for web browsers,Trident,Gecko and webkit. So I have learned something here from this useful post. And I have found out that Opera is made from the Presto engine not webkit like I thought it was. I have webkit browsers,Chromium and Arora and they are fine. But I never got on with Opera as I always had problems with it. Now I know that Opera is not a webkit browser,maybe thats why. As perhaps Presto is not compatible with my Windows 7. That could be why Opera does not work well.Andrea Borman.
The Acid3 test evaluates compatibility with a wide range of web technologies (some of which are quite obscure), including SVG, advanced CSS features, DOM Level 2 support, XML capabilities, and certain JavaScript functionality. The test was created earlier this year by Ian Hickson with help from volunteer contributors who assisted with several of the subtests. A recent Internet Explorer 8 beta passes only 18 of the 100 tests, a Firefox 3 nightly build passes 71 of the tests, and a recent development build of KDE's KHTML renderer passes 73 of the tests. Like WebKit, experimental builds of Opera's rendering engine also pass all 100 of the tests on Linux.
Still, Sanchez, who's near the heart of both projects, thinks that It remains to be seen how the situation in terms of open source dynamics and project health and quality will be in a few months." And his company, which is a top-five contributor to both projects, plans to continue to support both for the time being.
Building the SWT JNI libraries from the eclipse SDK download: Download an Eclipse distribution from
Unzip the distribution. This will create a directory called eclipse. This directory is subsequently referred to as . Copy file /plugins/org.eclipse.swt....source_X.X.X..zip to another directory and unzip it. Edit the file build.sh (or build.bat on Windows) in the current directory. Set the environment variables defined in that file to match the location of your JRE, etc. Save the file and close it. Run the build command (sh build.sh for UNIX and Linux platforms, build.bat for Windows). This will create the appropriate library file(s) in the current directory. For example, this will create swt-XXXX.dll files on windows, or libswt-XXXX.so files on Linux and Solaris. Building the SWT JNI libraries from the eclipse GIT repository: NOTE: These instructions require you to use Eclipse Follow these instructions to get SWT from GIT. Compile the project. This will create a folder called bin under the org.eclipse.swt project. Change directory into org.eclipse.swt/bin/library Edit the file build.sh (or build.bat on Windows) in the current directory. Set the environment variables defined in that file to match the location of your JRE, etc. Save the file and close it. Run the build command (sh build.sh for UNIX and Linux platforms, build.bat for Windows). This will create the appropriate library file(s) in the current directory. For example, this will create swt-XXXX.dll files on windows, or libswt-XXXX.so files on Linux and Solaris. Building the SWT natives on Ubuntu 12.04, 14.04, etc. (without XULRunner support) Install dependencies with: $ sudo apt-get install libgnomeui-dev libxtst-dev freeglut3-dev libgtk-3-dev libgtk2.0-dev Follow these instructions to get SWT from GIT. Make sure the org.eclipse.swt project is compiled. Context menu > Run As > Ant Build... On Targets tab, select "build_libraries" (14th from end of list). On Properties tab, add these two properties: to make the build succeed even without a XULRunner installation: targets = install to enable GTK3 support: machine_gtk3 = localmachine On JRE tab, select Execution Environment JavaSE-1.8. If the JAVA_HOME environment variable is not yet set, go to Environment tab and set it to the root directory of the JDK. Run the External Tools launch configuration. From now on, this is the only step you have to do to build natives. Q: How do I add a new native to the SWT JNI libraries for my platform? A: For the steps to add new natives to the SWT JNI libraries, see Generating the SWT JNI Code. Q: How do I add a new native to the SWT JNI libraries for Cocoa? A: For the steps to add new natives to the SWT Cocoa JNI libraries, see Generating the SWT PI Code for Cocoa. Q: How do I build the 64-bit version of SWT GTK? A: Follow these steps to extract the 64-bit SWT GTK source code from GIT and produce your own build: Start Eclipse and retrieve the org.eclipse.swt, org.eclipse.swt.gtk.linux.x86_64 and org.eclipse.swt.tools projects from dev.eclipse.org (see How to use SWT from GIT, use .classpath_gtk as the .classpath file in the org.eclipse.swt project).
Note this is not needed for builds after 4.3 M3 as the code was changed to 64-bit. Convert SWT's Java from its 32-bit form to 64-bit:
To convert the Java code in-place, go to the build.xml ant script in the org.eclipse.swt.gtk.linux.x86_64 project and run its "replace.32.to.64" target. Once this target has completed you must refresh (F5) the org.eclipse.swt project in order to pick up the changes.
Run the "build_libraries" target in the same build.xml file. Refresh (F5) the org.eclipse.swt.gtk.linux.x86_64 project when this target has completed, to pick up the new libraries.
You're done! The org.eclipse.swt.gtk.linux.x86_64 project will now contain the 64-bit native libraries, and if you're interested, the 64-bit source code will now be available in the org.eclipse.swt.gtk.linux.x86_64/src folder. Q: Which GTK version do I need to run SWT? A: SWT requires the following GTK+ versions (or newer) to be installed: Eclipse/SWT 4.16.x: GTK+ 3.20.0 and its dependencies
Eclipse/SWT 4.15.x: GTK+ 3.14.0 and its dependencies
Eclipse/SWT 4.11.x - 4.14.x: GTK+ 3.10.0 and its dependencies
Eclipse/SWT 4.10.x: GTK+ 3.8.0 and its dependencies
Eclipse/SWT 4.6.x - 4.9.x: GTK+ 2.24.0 and its dependencies (for GTK+ 2) OR GTK+ 3.0.0 and its dependencies (for GTK+ 3)
Eclipse/SWT 4.5.x: GTK+ 2.18.0 and its dependencies (for GTK+ 2) OR GTK+ 3.0.0 and its dependencies (for GTK+ 3)
Eclipse/SWT 4.4.x: GTK+ 2.10.0 and its dependencies (for GTK+ 2) OR GTK+ 3.0.0 and its dependencies (for GTK+ 3)
Eclipse/SWT 4.3.x: GTK+ 2.10.0 and its dependencies
Eclipse/SWT 3.8.x: GTK+ 2.6.0 and its dependencies
Eclipse/SWT 3.6.x - 3.7.x: GTK+ 2.4.1 and its dependencies
Eclipse/SWT 3.0.x - 3.5.x: GTK+ 2.2.1 and its dependencies
Eclipse/SWT 2.1.x: GTK+ 2.0.6 and its dependencies
Note that Eclipse/SWT 4.3.x includes early access support for GTK+ 3.x. Starting from Eclipse/SWT 4.4.x, Linux builds come with GTK+ 3 support enabled by default. 2ff7e9595c
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