src/config.c::
Contains all functions handling the configuration file (calling the parser
-(src/cfgparse.y) with the correct path, switching key bindings mode).
-
-src/debug.c::
-Contains debugging functions to print unhandled X events.
+src/config_parser.c) with the correct path, switching key bindings mode).
src/ewmh.c::
Functions to get/set certain EWMH properties easily.
function, which was moved into its own file because it is so long.
src/util.c::
-Contains useful functions which are not really dependant on anything.
+Contains useful functions which are not really dependent on anything.
src/window.c::
Handlers to update X11 window properties like +WM_CLASS+, +_NET_WM_NAME+,
== _NET_WM_STATE
-Only the _NET_WM_STATE_FULLSCREEN atom is handled. It calls
-``toggle_fullscreen()'' for the specific client which just configures the
-client to use the whole screen on which it currently is. Also, it is set as
-fullscreen_client for the i3Screen.
+Only the _NET_WM_STATE_FULLSCREEN and _NET_WM_STATE_DEMANDS_ATTENTION atoms
+are handled.
+
+The former calls ``toggle_fullscreen()'' for the specific client which just
+configures the client to use the whole screen on which it currently is.
+Also, it is set as fullscreen_client for the i3Screen.
+
+The latter is used to set, read and display urgency hints.
== WM_NAME
itself for the container’s children. This function actually pushes the
state, see the next paragraph.
4. If the pointer needs to be warped to a different position (for example when
- changing focus to a differnt output), it will be warped now.
+ changing focus to a different output), it will be warped now.
5. The eventmask is restored for all mapped windows.
6. Window decorations will be rendered by calling +x_deco_recurse+ on the root
container, which then recursively calls itself for the children.
+x_draw_decoration+ draws window decorations. It is run for every leaf
container (representing an actual X11 window) and for every non-leaf container
which is in a stacked/tabbed container (because stacked/tabbed containers
-display a window decoration for split containers, which at the moment just says
-"another container").
+display a window decoration for split containers, which consists of a representation
+of the child container's names.
Then, parameters are collected to be able to determine whether this decoration
drawing is actually necessary or was already done. This saves a substantial
In earlier versions of i3, interpreting these commands was done using lex and
yacc, but experience has shown that lex and yacc are not well suited for our
command language. Therefore, starting from version 4.2, we use a custom parser
-for user commands (not yet for the configuration file).
+for user commands and the configuration file.
The input specification for this parser can be found in the file
-+parser-specs/commands.spec+. Should you happen to use Vim as an editor, use
++parser-specs/*.spec+. Should you happen to use Vim as an editor, use
:source parser-specs/highlighting.vim to get syntax highlighting for this file
(highlighting files for other editors are welcome).
# workspace next|prev|next_on_output|prev_on_output
# workspace back_and_forth
# workspace <name>
+# workspace number <number>
state WORKSPACE:
direction = 'next_on_output', 'prev_on_output', 'next', 'prev'
-> call cmd_workspace($direction)
'back_and_forth'
-> call cmd_workspace_back_and_forth()
+ 'number'
+ -> WORKSPACE_NUMBER
workspace = string
-> call cmd_workspace_name($workspace)
----------------------------------------------------------------
single quotes), but just called string. Other possible tokens are word
(the same as string, but stops matching at a whitespace) and end
(matches the end of the input).
+workspace number <number>::
+ The workspace command has to be followed by the keyword +number+. It
+ then transitions into the state +WORKSPACE_NUMBER+, where the actual
+ parameter will be read.
=== Introducing a new command
Afterwards, +con_focus+ will be called to fix the focus stack and the tree will
be flattened.
-=== Case 3: Moving to non-existant top/bottom
+=== Case 3: Moving to non-existent top/bottom
Like in case 1, the reference layout for this case is a single workspace in
horizontal orientation with two containers on it. Focus is on the left
Now, +con_focus+ will be called to fix the focus stack and the tree will be
flattened.
-=== Case 4: Moving to existant top/bottom
+=== Case 4: Moving to existent top/bottom
The reference layout for this case is a vertical workspace with two containers.
The bottom one is a h-split containing two containers (1 and 2). Focus is on
http://web.archive.org/web/20121024222556/http://www.spheredev.org/wiki/Git_for_the_lazy
or, for more documentation, see http://git-scm.com/documentation
-You can view the git repository online at http://code.i3wm.org.
-
Please talk to us before working on new features to see whether they will be
-accepted. There are a few things which we don’t want to see in i3, e.g. a
-command which will focus windows in an alt+tab like way.
+accepted. A good way for this is to open an issue and asking for opinions on it.
+Even for accepted features, this can be a good way to refine an idea upfront. However,
+we don't want to see certain features in i3, e.g., switching window focus in an
+Alt+Tab like way.
When working on bugfixes, please make sure you mention that you are working on
-it in the corresponding bugreport at http://bugs.i3wm.org/. In case there is no
-bugreport yet, please create one.
+it in the corresponding bug report at https://github.com/i3/i3/issues. In case
+there is no bug report yet, please create one.
-After you are done, please submit your work for review at http://cr.i3wm.org/
+After you are done, please submit your work for review as a pull request at
+https://github.com/i3/i3.
Do not send emails to the mailing list or any author directly, and don’t submit
them in the bugtracker, since all reviews should be done in public at
-http://cr.i3wm.org/. In order to make your review go as fast as possible, you
+https://github.com/i3/i3. In order to make your review go as fast as possible, you
could have a look at previous reviews and see what the common mistakes are.
=== Which branch to use?
-Work on i3 generally happens in two branches: “master” and “next”. Since
-“master” is what people get when they check out the git repository, its
-contents are always stable. That is, it contains the source code of the latest
-release, plus any bugfixes that were applied since that release.
+Work on i3 generally happens in two branches: “master” and “next” (the latter
+being the default branch, the one that people get when they check out the git
+repository).
+
+The contents of “master” are always stable. That is, it contains the source code
+of the latest release, plus any bugfixes that were applied since that release.
New features are only found in the “next” branch. Therefore, if you are working
-on a new feature, use the “next” branch. If you are working on a bugfix, use
-the “next” branch, too, but make sure your code also works on “master”.
+on a new feature, use the “next” branch. If you are working on a bugfix, use the
+“next” branch, too, but make sure your code also works on “master”.
== Thought experiments
Imagine for example using dmenu: The user starts dmenu by pressing Mod+d, dmenu
gets started with PID 3390. The user then decides to launch Firefox, which
-takes a long time. So he enters firefox into dmenu and presses enter. Firefox
+takes a long time. So they enter firefox into dmenu and press enter. Firefox
gets started with PID 4001. When it finally finishes loading, it creates an X11
window and uses MapWindow to make it visible. This is the first time i3
actually gets in touch with Firefox. It decides to map the window, but it has
projects / i3 / i3 / blobdiff