doc: improve client class (#1221)

objects/client.c

@@ -21,21 +21,25 @@
 
 /** A process window.
  *
- * Clients are the name used by Awesome (and X11) to refer to a window. An
+ * Clients are the name used by Awesome (and X11) to refer to a window.
- * application can have multiple clients (like for dialogs) or none at all
+ *
- * (like command line applications). Clients are usually grouped by classes. A
+ * A program can have multiple clients (e.g. for dialogs) or none at all (e.g.
- * class is the name used by X11 to help window manager distinguish between
+ * command line applications).
- * window and write rules for them. See the `xprop` command line application. A
+ * Clients are usually grouped by classes.
- * client also have a `type` and `size_hints` used to define its behavior.
+ * A class is the name used by X11 to help the window manager distinguish
+ * between windows and write rules for them.  A client's behavior is also
+ * defined by its `type` and `size_hints` properties.
+ * See the `xprop` command line application to query properties for a client.
  *
  * ![Client geometry](../images/client_geo.svg)
  *
- * The client `:geometry()` return a table with *x*, *y*, *width* and *height*.
+ * The client's `:geometry()` function returns a table with *x*, *y*, *width*
- * The area returned **exclude the border width**. All clients also have a
+ * and *height*.  The area returned **excludes the border width**.
- * `shape_bounding` and `shape_clip` used to "crop" the client content. Finally,
+ * All clients also have a `shape_bounding` and `shape_clip` used to "crop" the
- * each clients can have titlebars (see `awful.titlebar`).
+ * client's content.
+ * Finally, each clients can have titlebars (see `awful.titlebar`).
  *
- * Furthermore to the classes described here, one can also use signals as
+ * Additionally to the classes described here, one can also use signals as
  * described in @{signals} and X properties as described in @{xproperties}.
  *
  * Some signal names are starting with a dot. These dots are artefacts from
@@ -43,41 +47,40 @@
  * removing the starting dot.
  *
  * Accessing client objects can be done in multiple ways depending on the
- * context. To get the current focused client, use:
+ * context.
+ * To get the currently focused client:
  *
  *    local c = client.focus
- *
  *    if c then
  *        -- do something
  *    end
  *
- * To get a list of all clients, use `client:get`
+ * To get a list of all clients, use `client:get`:
  *
  *    for _, c in ipairs(client.get()) do
  *        -- do something
  *    end
  *
- * To get a callback when a new client is added, use the `manage` signal:
+ * To execute a callback when a new client is added, use the `manage` signal:
  *
  *    client.connect_signal("manage", function(c)
  *        -- do something
  *    end)
  *
- * To be notified a property changed in a client, use:
+ * To be notified when a property of a client changed:
  *
  *    client.connect_signal("property::name", function(c)
  *        -- do something
  *    end)
  *
- * To be notified when a property change for a specific client (assuming it is
+ * To be notified when a property of a specific client `c` changed:
- * stored in the variable `c`), use:
  *
  *    c:connect_signal("property::name", function()
  *        -- do something
  *    end)
  *
- * To get all the clients for a screen, use either `screen.clients` or
+ * To get all the clients for a screen use either `screen.clients` or
- * `screen.tiled_clients`
+ * `screen.tiled_clients`.
  *
  * @author Julien Danjou <julien@danjou.info>
  * @copyright 2008-2009 Julien Danjou