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Diffstat (limited to 'doc/source/dev/overview.rst')
| -rw-r--r-- | doc/source/dev/overview.rst | 54 |
1 files changed, 43 insertions, 11 deletions
diff --git a/doc/source/dev/overview.rst b/doc/source/dev/overview.rst index f0eef18a..3b27fe9e 100644 --- a/doc/source/dev/overview.rst +++ b/doc/source/dev/overview.rst @@ -26,8 +26,7 @@ dispatchs the I/O events (keypress) to the appropriate methods. But the main loop is not the most important thing in poezio; because it is an IM client, it is essentially event-driven. The event part is handled by -SleekXMPP, which is the library we chose after moving away from xmpppy. - +slixmpp, which is our fork of sleekxmpp to use asyncio instead of threads. **Tabs** are the second layer of poezio, but the first dealing with the UI: each **Tab** is a layout of several **windows**, it contains tab-specific commands, @@ -49,9 +48,9 @@ Event handlers -------------- The events handlers are registered right at the start of poezio, and then -when a matching stanza is received, the handler is called in a separate thread -from the main loop. The handlers are in **Core**, and then they call the -appropriate methods in the corresponding **tabs**. +when a matching stanza is received, the handler is called. The handlers are +in **Core**, and then they call the appropriate methods in the corresponding +**tabs**. Example scenario: if a message is received from a MUC, then the **Core** handler will identify the **Tab**, and call the relevant handler from this **Tab**, this tab @@ -86,14 +85,12 @@ There are utilities to deal with it (common.shell_split), but it is not always necessary. Commands are registered in the **commands** dictionnary of a tab structured as key (command name) -> tuple(command function, help string, completion). - Completions are a bit tricky, but it’s easy once you get used to it: They take an **Input** (a _windows_ class) as a parameter, named the_input everywhere in the sources. To effectively have a completion, you have to call -**the_input.auto_completion()** or **the_input.new_completion()** at the end -of the function. - +**the_input.auto_completion()** or **the_input.new_completion()** with the relevant +parameters before returning from the function. .. code-block:: python @@ -105,13 +102,48 @@ of the function. def new_completion(completion_list, argument_position, after='', quotify=True): # … -Set the input to iterate over _completion_list_ when the user hits tab, insert +Set the input to iterate over **completion_list** when the user hits tab, to insert **after** after the completed item, and surround the item with double quotes or not. To find the current completed argument, use the **input.get_argument_position()** -method. You can then use new_completion() to select the argument to be completed. +method. You can then use **new_completion()** to select the argument to be completed. You can look for examples in the sources, all the possible cases are covered (single-argument, complex arguments with spaces, several arguments, etc…). + +.. note:: + Only **new_completion()** used together with **get_argument_position()** allow + completing arguments that are not at the end of the command line, therefore it + is preferable to use that and not **auto_completion()**. + + +Dealing with the command line +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +For convenience’s sake, poezio includes a **decorators** module containing a +**command_args_parser**, which can be used to filter the input easily. + +Examples: + +.. code-block:: python + + from decorators import command_args_parser + class MyClass(object): + + @command_args_parser.raw + def command_raw(self, raw): + # the "raw" parameter will be the raw input string + + @command_args_parser.ignored + def command_ignored(self): + # no argument is given to that function + + @command_args_parser.quoted(mandatory=1, optional=0) + def command_quoted_1(self, args): + # the "args" parameter will be a list containing one argument + +See the source of the CommandArgParser for more information. + +.. autoclass:: decorators.CommandArgParser |