Mini Shell
3
�p5[@� � 4 @ s� d Z dZdZdZdZdZddlZddlZddlZddl m
Z
y ddl Z W n e k
r` dZ Y nX y ddl
Z
dad Zd
adaW n d
Zd
aY nX d d lmZ d d
lmZ ej� Zyd dlmZ W n d
e_Y nX d dlmZ d dlmZ d dlmZ d dlm Z d dlm Z d dlm Z e j � Z e j!d�Z"d dl#m$Z$ e �r�e$ �r�ej%ej&d� ej%ej&d� ej%ej&d� ej%ej&d� dZ da'g Z(e�r�e
j)e
j*e
j+e
j,gZ(i Z-e�rDej.e-e
j)< ej/e-e
j*< ej0e-e
j+< ej1e-e
j,< ej2e-e
j3< ej4e-e
j5< ej6e-e
j7< ej8e-e
j9< ej:e-e
j;< ej<e-e
j=< ej>e-e
j?< ej@e-e
jA< dZBeBd gaCg aDdaEdjaFddgaGdaHd
aId
aJdaKdaLdaMejNejOejPejQejRejSejTejUejVejWejXejYejZej[ej\ej]ej^ej_ej`ejaejbejcejdejeejfejgejhejiejjejkejld � Zmd d � Znd d � Zoe �reo� Zpd!d"� ZqG d#d$� d$�ZrG d%d&� d&er�ZsG d'd(� d(es�ZtG d)d*� d*er�ZuG d+d,� d,es�ZvG d-d.� d.er�ZwG d/d0� d0�Zxd1d2� Zyd3d4� Zzd5d6� Z{d7d8� Z|d9d:� Z}d;d<� Z~dkd=d>�Zdld?d@�Z�dAdB� Z�dmdCdD�Z�dEdF� Z�dGdH� Z�dndIdJ�Z�dpdKdL�Z�dMdN� Z�dOdP� Z�dQdR� Z�dqdSdT�Z�drdUdV�Z�dWdX� Z�dsdYdZ�Z�d[d\� Z�d]d^� Z�d_d`� Z�dadb� Z�dcdd� Z�dtdfdg�Z�dhdi� Z�dS )ua� A very experimental approach to the refreshable Braille display. This
module treats each line of the display as a sequential set of regions, where
each region can potentially backed by an Accessible object. Depending upon
the Accessible object, the cursor routing keys can be used to perform
operations on the Accessible object, such as invoking default actions or
moving the text caret.
z$Id$z
$Revision$z$Date$z-Copyright (c) 2005-2009 Sun Microsystems Inc.ZLGPL� N)�GLibTF� )�settings)�settings_manager)�brlmon)�
brltablenames)�cmdnames)�debug)�eventsynthesizer)�logger)�
orca_stateZbraille)� tablesdirz0Contraction tables for liblouis cannot be found.z(This usually means orca was built beforez/liblouis was installed. Contracted braille willznot be available.� ) zCz-Cz-g1zEs-Es-g1zFr-Ca-g2zFr-Fr-g2zLv-Lv-g1zNl-Nl-g1zNo-No-g0zNo-No-g1zNo-No-g2zNo-No-g3zPl-Pl-g1zPt-Pt-g1zSe-Se-g1zar-ar-g1zcy-cy-g1zcy-cy-g2zde-de-g0zde-de-g1zde-de-g2zen-GB-g2zen-gb-g1zen-us-g1zen-us-g2zfr-ca-g1zfr-fr-g1zgr-gr-g1zhi-in-g1z hu-hu-comp8zhu-hu-g1zit-it-g1znl-be-g1c C sl i } yNxHt jt�D ]:}|dd � dkr|d d� }t jjt|�| tj||�< qW W n tk
rf Y nX | S )N� �.utb�.ctb���)r r r )�os�listdirr
�path�join� TABLE_NAMES�get�OSError)Ztables�fname�alias� r � /usr/lib/python3.6/braille.py�
listTables� s "r c C sZ y@x:t jt�D ],} | dd � dkr| jd�rt jjt| �S qW W n tk
rT Y nX dS )Nr �.utb�.ctbzen-us� r )r r )r r r
�
startswithr r r )r r r r �getDefaultTable� s
r# c C s t j| dt|� � dS )z�Prints out a Braille event. The given level may be overridden
if the eventDebugLevel (see debug.setEventDebugLevel) is greater in
debug.py.
Arguments:
- command: the BrlAPI command for the key that was pressed.
zBRAILLE EVENT: %sN)r ZprintInputEvent�repr)�levelZcommandr r r �_printBrailleEvent� s r& c @ sf e Zd ZdZddd�Zdd� Zdd � Zdd d �Zd
d� Zd dd�Z dd� Z
dd� Z dd� Z dd� Z
dS ) �RegionzpA Braille region to be displayed on the display. The width of
each region is determined by its string.
r Fc C sp |sd}t jotdk | _|| _|jd�| _| jr^t jp8t| _ | j
| j||�\| _ | _ | _
| _n| j| _ || _dS )z�Creates a new Region containing the given string.
Arguments:
- string: the string to be displayed
- cursorOffset: a 0-based index saying where to draw the cursor
for this Region if it gets focus.
r! N�
)r �enableContractedBraille�louis�
contracted�expandOnCursor�strip�rawLine�brailleContractionTable�_defaultContractionTable�contractionTable� contractLine�string�inPos�outPos� cursorOffset)�selfr3 r6 r, r r r �__init__ s
zRegion.__init__c C s d| j | jf S )NzRegion: '%s', %d)r3 r6 )r7 r r r �__str__1 s zRegion.__str__c C s dS )a Processes a cursor routing key press on this Component. The offset
is 0-based, where 0 represents the leftmost character of string
associated with this region. Note that the zeroeth character may have
been scrolled off the display.Nr )r7 �offsetr r r �processRoutingKey4 s zRegion.processRoutingKeyTc C s dt | j� S )a� Creates a string which can be used as the attrOr field of brltty's
write structure for the purpose of indicating text attributes, links,
and selection.
Arguments:
- getLinkMask: Whether or not we should take the time to get
the attributeMask for links. Reasons we might not want to
include knowning that we will fail and/or it taking an
unreasonable amount of time (AKA Gecko).
� )�lenr3 )r7 � getLinkMaskr r r �getAttributeMask; s zRegion.getAttributeMaskc C s. | j r*| j| j| j| j�\| _| _| _| _dS )z:Reposition the cursor offset for contracted mode.
N)r+ r2 r. r6 r, r3 r4 r5 )r7 r r r �repositionCursorK s zRegion.repositionCursorc
C sx y|| dk}W n t k
r( d}Y nX | s4|r:d}ntj}tj| jg|||d�\}}}} t| t|��} |||| fS )a* Contract the given line. Returns the contracted line, and the
cursor position in the contracted line.
Arguments:
- line: Line to contract.
- cursorOffset: Offset of cursor,defaults to 0.
- expandOnCursor: Expand word under cursor, False by default.
� Fr )� cursorPos�mode)�
IndexErrorr* ZcompbrlAtCursor� translater1 �minr= )
r7 �liner6 r, Z
cursorOnSpacerC r+ r4 r5 rB r r r r2 T s
zRegion.contractLinec C sH y| j | }W n4 tk
r, t| j�}Y n tk
rB |}Y nX |S )N)r4 rD r= r. �AttributeError)r7 �display_offsetr: r r r �displayToBufferOffsett s
z Region.displayToBufferOffsetc C s& |rt jp t| _| j� n| j� d S )N)r r/ r0 r1 �contractRegion� expandRegion)r7 r+ r r r �setContractedBraille� s
zRegion.setContractedBraillec C s8 | j r
d S | j| j| j| j�\| _| _| _| _d| _ d S )NT)r+ r2 r. r6 r, r3 r4 r5 )r7 r r r rK � s zRegion.contractRegionc C sP | j s
d S | j| _y| j| j | _W n tk
rD t| j�| _Y nX d| _ d S )NF)r+ r. r3 r4 r6 rD r= )r7 r r r rL � s zRegion.expandRegionN)r F)T)r F)�__name__�
__module__� __qualname__�__doc__r8 r9 r; r? r@ r2 rJ rM rK rL r r r r r' s
!
r' c @ s2 e Zd ZdZddd�Zdd� Zd d
� Zd d � Zd
S )� Componentz�A subclass of Region backed by an accessible. This Region will react
to any cursor routing key events and perform the default action on the
accessible, if a default action exists.
r r! Fc C s< t j| |||� |r2| jr,|d | j | _n|| _|| _dS )a Creates a new Component.
Arguments:
- accessible: the accessible
- string: the string to use to represent the component
- cursorOffset: a 0-based index saying where to draw the cursor
for this Region if it gets focus.
rA N)r' r8 r3 �
accessible)r7 rS r3 r6 Z indicatorr, r r r r8 � s zComponent.__init__c C s d| j | jf S )NzComponent: '%s', %d)r3 r6 )r7 r r r r9 � s zComponent.__str__c C s dS )z�Returns the caret position of the given offset if the object
has text with a caret. Otherwise, returns -1.
Arguments:
- offset: 0-based offset of the cell on the physical display
r ���r )r7 r: r r r �getCaretOffset� s zComponent.getCaretOffsetc C s� t jr8t jjj| j|�r8y| jj� j� W n Y nX y| jj� }W nT tj tj
d� yt j | jd� W n& tj tj
d� tjtj
� Y nX Y n X |jd� dS )a Processes a cursor routing key press on this Component. The offset
is 0-based, where 0 represents the leftmost character of string
associated with this region. Note that the zeroeth character may have
been scrolled off the display.z.braille.Component.processRoutingKey: no actionr z Could not process routing key:r N)r � activeScript� utilitiesZgrabFocusBeforeRoutingrS ZqueryComponentZ grabFocusZ queryActionr �println� LEVEL_FINESTr
Z clickObject� LEVEL_SEVERE�printExceptionZdoAction)r7 r: �actionr r r r; � s$
zComponent.processRoutingKeyN)r r! F)rN rO rP rQ r8 r9 rU r; r r r r rR � s
rR c @ s, e Zd ZdZd dd�Zdd� Zd dd �Zd
S )
�Linkz�A subclass of Component backed by an accessible. This Region will be
marked as a link by dots 7 or 8, depending on the user's preferences.
r c C s t j| |||dd� dS )zlInitialize a Link region. similar to Component, but here we always
have the region expand on cursor.r! TN)rR r8 )r7 rS r3 r6 r r r r8 � s z
Link.__init__c C s d| j | jf S )NzLink: '%s', %d)r3 r6 )r7 r r r r9 � s z Link.__str__Tc C s t tj�t| j� S )a� Creates a string which can be used as the attrOr field of brltty's
write structure for the purpose of indicating text attributes and
selection.
Arguments:
- getLinkMask: Whether or not we should take the time to get
the attributeMask for links. Reasons we might not want to
include knowning that we will fail and/or it taking an
unreasonable amount of time (AKA Gecko).
)�chrr �brailleLinkIndicatorr= r3 )r7 r> r r r r? � s zLink.getAttributeMaskN)r )T)rN rO rP rQ r8 r9 r? r r r r r] � s
r] c @ s^ e Zd ZdZddd�Zdd� Zdd � Zd
d � Zd d
� Zddd�Z ddd�Z
dd� Z dd� Z dS )�Textaj A subclass of Region backed by a Text object. This Region will
react to any cursor routing key events by positioning the caret in
the associated text object. The line displayed will be the
contents of the text object preceded by an optional label.
[[[TODO: WDW - need to add in text selection capabilities. Logged
as bugzilla bug 319754.]]]r! Nc C sb || _ tjr2| j r2tjj| j ||d�\}| _| _nd}d| _d| _y|| j }W n tk
rl t|�}Y nX y|| j | _W n tk
r� d| _Y nX || j|� }| j| j8 _t | j| j t|��}| jt|� | _
|| _ |r�|d | _ nd| _ | j | }|t| j �7 }t
j| ||d� | j �rHtj �rH| j| j 7 _ntj�r^| jd7 _dS )z�Creates a new Text region.
Arguments:
- accessible: the accessible that implements AccessibleText
- label: an optional label to display
)� startOffset� endOffsetr! r rA TN)rS r rV �getTextLineAtCaret� caretOffset�
lineOffset� TypeErrorr= ra rF �_maxCaretOffset�eol�labelr' r8 r+ r ZdisableBrailleEOLr3 )r7 rS ri rh ra rb r3 r6 r r r r8 s<
z
Text.__init__c C s d| j | jf S )NzText: '%s', %d)r3 r6 )r7 r r r r9 ? s z Text.__str__c C s� t jj| j| j�\}}}t|| t|��}|| jkr8dS || _|| _|t| j �7 }| j
rv| j | j |d�\| _
| _| _}|| _dS )z�Attempts to reposition the cursor in response to a new
caret position. If it is possible (i.e., the caret is on
the same line as it was), reposition the cursor and return
True. Otherwise, return False.
FT)r rV rc rS ra rF r= re rd ri r+ r2 r. r3 r4 r5 r6 )r7 r3 rd re r6 r r r r@ B s
zText.repositionCursorc C s( | j |�}|dk rdS t| j| | j�S )z�Returns the caret position of the given offset if the object
has text with a caret. Otherwise, returns -1.
Arguments:
- offset: 0-based offset of the cell on the physical display
r r rT )rJ rF re rg )r7 r: r r r rU _ s
zText.getCaretOffsetc C s, | j |�}|dk rdS tjjj| j|� dS )a Processes a cursor routing key press on this Component. The offset
is 0-based, where 0 represents the leftmost character of text
associated with this region. Note that the zeroeth character may have
been scrolled off the display.
r N)rU r rV rW �setCaretOffsetrS )r7 r: rd r r r r; m s
zText.processRoutingKeyTc sH y� j j� }W n tk
r" dS X t� j�t� j� }� j| }tjg| }tj }tj
}tj }t j
} |or|tjk�r y� j j� }
|
j� } W n d} Y nX d} xh| | k �r
|
j| �}
� j|
jk�r x8t|
j|
j�D ]&}y|| |O < W q� Y q�X q�W | d7 } q�W |�r�| jjtj�\}}� j}x�||k �r�| jj� j |d�\}}}||k�rZP tj}|}x8|D ]0}|j|d�dk�rj|| || k�rj|}P �qjW |tjk�r,t|� j d�}t|� j |�}x$t||�D ]}|| |O < �q�W �q,W |�rd| jj� j �}xX|D ]P\}}t|� j d�}t|� j |�}x$t||�D ]}|| |O < �qDW �qW � j �rdgt� j� }� j t� j�d� }� j�r�� fdd�|D �}xJt |�D ]>\}} y||| | O < W n t k
�r� �w�Y nX �q�W |dt� j �� }|dgt� j!� 7 }� j�r8dgt� j� | }dj"t#t$|��S )a� Creates a string which can be used as the attrOr field of brltty's
write structure for the purpose of indicating text attributes, links,
and selection.
Arguments:
- getLinkMask: Whether or not we should take the time to get
the attributeMask for links. Reasons we might not want to
include knowning that we will fail and/or it taking an
unreasonable amount of time (AKA Gecko).
r! r r TNc s g | ]}|t � j� d �qS )r )r= ri )�.0r: )r7 r r �
<listcomp>� s z)Text.getAttributeMask.<locals>.<listcomp>)%rS Z queryText�NotImplementedErrorr= r. ri re r ZBRAILLE_UNDERLINE_NONEZ textAttributesBrailleIndicatorZbrailleSelectorIndicatorr_ r rV ZqueryHypertextZ getNLinksZgetLinkZ
startIndex�rangeZendIndexrW ZstringToKeysAndDictZ enabledBrailledTextAttributesZtextAttributesr �maxrF ZallTextSelectionsr+ r5 � enumeraterD r3 rh r �mapr^ ) r7 r> �textZ stringLengthZ
lineEndOffsetZ
regionMaskZ
attrIndicatorZ selIndicatorZ
linkIndicatorZscriptZ hyperTextZnLinks�n�link�i�keysZenabledAttributesr: Z
attributesra rb �maskZattribZ maskStartZmaskEndZ
selectionsZcontractedMaskr5 �mr )r7 r r? | s�
zText.getAttributeMaskr c C s* t j| |||�\}}}}|| j |||fS )N)r' r2 rh )r7 rG r6 r, r+ r4 r5 rB r r r r2 � s zText.contractLinec C s( t j| |�}|| j7 }|t| j�8 }|S )N)r' rJ ra r= ri )r7 rI r: r r r rJ � s
zText.displayToBufferOffsetc C s$ t j| |� |s | j| j7 _d S )N)r' rM r3 rh )r7 r+ r r r rM � s zText.setContractedBraille)r! r! NN)T)r T)
rN rO rP rQ r8 r9 r@ rU r; r? r2 rJ rM r r r r r` � s
9
f
r` c @ s e Zd ZdZdd� ZdS )�ReviewComponentz@A subclass of Component that is to be used for flat review mode.c C s t j| |||dd� || _dS )a_ Creates a new Component.
Arguments:
- accessible: the accessible
- string: the string to use to represent the component
- cursorOffset: a 0-based index saying where to draw the cursor
for this Region if it gets focus.
- zone: the flat review Zone associated with this component
T)r, N)rR r8 �zone)r7 rS r3 r6 rz r r r r8 � s
zReviewComponent.__init__N)rN rO rP rQ r8 r r r r ry � s ry c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �
ReviewTexta A subclass of Region backed by a Text object. This Region will
does not react to the caret changes, but will react if one updates
the cursorPosition. This class is meant to be used by flat review
mode to show the current character position.
c C s& t j| |dd� || _|| _|| _dS )aI Creates a new Text region.
Arguments:
- accessible: the accessible that implements AccessibleText
- string: the string to use to represent the component
- lineOffset: the character offset into where the text line starts
- zone: the flat review Zone associated with this component
T)r, N)r' r8 rS re rz )r7 rS r3 re rz r r r r8 s zReviewText.__init__c C s | j |�}|dk rdS | j| S )z�Returns the caret position of the given offset if the object
has text with a caret. Otherwise, returns -1.
Arguments:
- offset: 0-based offset of the cell on the physical display
r r rT )rJ re )r7 r: r r r rU s
zReviewText.getCaretOffsetc C s | j |�}tjjj| j|� dS )z�Processes a cursor routing key press on this Component. The offset
is 0-based, where 0 represents the leftmost character of text
associated with this region. Note that the zeroeth character may have
been scrolled off the display.N)rU r rV rW rj rS )r7 r: rd r r r r; ' s
z ReviewText.processRoutingKeyN)rN rO rP rQ r8 rU r; r r r r r{ s r{ c @ sL e Zd ZdZddd�Zdd� Zdd� Zdd
d �Zd d
� Zdd� Z dd� Z
dS )�LinezaA horizontal line on the display. Each Line is composed of a sequential
set of Regions.
Nc C s g | _ d| _|r| j|� d S )Nr! )�regionsr3 � addRegion)r7 �regionr r r r8 6 s z
Line.__init__c C s | j j|� d S )N)r} �append)r7 r r r r r~ < s zLine.addRegionc C s | j j|� d S )N)r} �extend)r7 r} r r r �
addRegions? s zLine.addRegionsTc C s� d}d}d}g }x@| j D ]6}|tkr,t|�}|jr<||j7 }|j|�}||7 }qW dd� tjd|�D �}g } xp|D ]Z\}
} | r�| | d td kr�|j| � g } | s�|
| g} n| | d< | |krr|j| � g } qrW | r�|j| � ||||gS )a, Computes the complete string for this line as well as a
0-based index where the focused region starts on this line.
If the region with focus is not on this line, then the index
will be -1.
Arguments:
- getLinkMask: Whether or not we should take the time to get
the attributeMask for links. Reasons we might not want to
include knowning that we will fail and/or it taking an
unreasonable amount of time (AKA Gecko).
Returns [string, offsetIndex, attributeMask, ranges]
r! r c S s g | ] }|j � �qS r )�span)rk Zwordr r r rl ] s z$Line.getLineInfo.<locals>.<listcomp>z
(^\s+|\S+\s*)r rT ) r} �_regionWithFocusr= r3 r? �re�finditer� _displaySizer� ) r7 r> r3 � focusOffset�
attributeMask�rangesr rw Zwordsr� �start�endr r r � getLineInfoB s4
zLine.getLineInfoc C sf d}d}d}x4| j D ]*}|}||j }t|�|kr6P qt|�}qW |t|�krVddgS ||| gS dS )a5 Finds the Region at the given 0-based offset in this line.
Returns the [region, offsetinregion] where the region is
the region at the given offset, and offsetinregion is the
0-based offset from the beginning of the region, representing
where in the region the given offset is.Nr! r r rT )r} r3 r= )r7 r: Z foundRegionr3 �posr r r r �getRegionAtOffsetp s
zLine.getRegionAtOffsetc C s | j |�\}}|r |j|� dS )z�Processes a cursor routing key press on this Component. The offset
is 0-based, where 0 represents the leftmost character of string
associated with this line. Note that the zeroeth character may have
been scrolled off the display.N)r� r; )r7 r: r � regionOffsetr r r r; � s zLine.processRoutingKeyc C s x| j D ]}|j|� qW d S )N)r} rM )r7 r+ r r r r rM � s zLine.setContractedBraille)N)T) rN rO rP rQ r8 r~ r� r� r� r; rM r r r r r| 1 s
.
r| c C s> t t�dkr2| d td }td }t| j|�S ddgS dS )aB Given a 1-based cell offset, return the braille region
associated with that cell in the form of [region, offsetinregion]
where 'region' is the region associated with the cell and
'offsetinregion' is the 0-based offset of where the cell is
in the region, where 0 represents the beginning of the region.
r r NrT )r= �_lines�viewportr� )�cellr: �lineNumr r r �getRegionAtCell� s
r� c C sT | j d }t|d �\}}|rDt|t�s2t|t�rD|j}|j|�}nd}d}||gS )aN Gets the accesible and caret offset associated with the given
event. The event should have a BrlAPI event that contains an
argument value that corresponds to a cell on the display.
Arguments:
- event: an instance of input_event.BrailleEvent. event.event is
the dictionary form of the expanded BrlAPI event.
�argumentr NrT )�eventr� �
isinstancer` r{ rS rU )r� r: r r� rS rd r r r �getCaretContext� s
r� c C s g a daddgadS )zgClears the logical structure, but keeps the Braille display as is
(until a refresh operation).
Nr )r� r� r� r r r r �clear� s r� c C s | a d S )N)r� )�linesr r r �setLines� s r� c C s t j| � tt �| _dS )a/ Adds a line to the logical display for painting. The line is added to
the end of the current list of known lines. It is necessary for the
viewport to be over the lines and for refresh to be called for the new
line to be painted.
Arguments:
- line: an instance of Line to add.
N)r� r� r= Z_index)rG r r r �addLine� s
r� c C s t td S )zEReturns the Line that is currently being painted on the display.
r )r� r� r r r r �getShowingLine� s r� c C s� | a | st rdS d}d}xBtD ]:}x$|jD ]}|t kr.|td< d}P q.W |rTP q"|d7 }q"W ttd }|j|�\}}} }
t jtd kr�|t jtd d 7 }td|�td< dS )a/ Specififes the region with focus. This region will be positioned
at the home position if panToFocus is True.
Arguments:
- region: the given region, which much be in a line that has been
added to the logical display
- panToFocus: whether or not to position the region at the home
position
- getLinkMask: Whether or not we should take the time to get the
attributeMask for links. Reasons we might not want to include
knowning that we will fail and/or it taking an unreasonable
amount of time (AKA Gecko).
Nr Fr T)r� r� r} r� r� r6 r� ro ) r Z
panToFocusr> r� �donerG Zregr3 r: r� r� r r r �setFocus� s&
r� c C s� t \}}}}tr.ttt�r.tj}tj} tj}
n d}d} d}
|rHtdd� tj d� r�tj d� r�t
r�yt j dd� W n& t
jt
jd� t
jt
j� Y nX t� da dS tt�dk�rt
s�tttj� t
�r yt j dd� W n, t
jt
jd� t
jt
j� t� Y nX da dS |dk �r.td | d }|dk�r�|�r�||k�r�|
|k�r�|dk�r^nN|| k�rn|}n>|| k �r�ttd || | �}n || k�r�td ||| �}ttd } | j |�\} }
}}d}|
dk�r�|
tj }| �r�|dk�r�t| �td k�rdtd< n�|�r,td|| d �td< nj|td k �rJtd|�td< nL|td td k�r|td|td d �td< nt |�}td|d �td< t � \}}|td< || a t dk �s�t td k�r�da nt d 7 a d
| }t
jt
j!|� t"j#|� d | ||� t f }t
jt
j!|� t"j#|� | ||� }|�rB|||� }n d || }t
�s`tttj� t
�r&t$j%� }d |_&t|�|_'x:|j'td k �r�|d
7 }|�r�|d 7 }| j'd 7 _'�q�W ||_(t |_)|�r�||_*t
�s�tttj� t
�r&yt j+|� W n, t
jt
jd� t
jt
j� t� Y nX tj,�r�t-�snyt.j/td �a-t-j0� W n t
jt
jd� da-Y nX |�r�|||� }nd}t-�r�t-j t ||� nt-�r�t-j1� da-|dka2|t| �ka3t�r�ttt��r�tjtjtjt fa nda dS )ad Repaints the Braille on the physical display. This clips the entire
logical structure by the viewport and also sets the cursor to the
appropriate location. [[[TODO: WDW - I'm not sure how BrlTTY handles
drawing to displays with more than one line, so I'm only going to handle
drawing one line right now.]]]
Arguments:
- panToCursor: if True, will adjust the viewport so the cursor is
showing.
- targetCursorCell: Only effective if panToCursor is True.
0 means automatically place the cursor somewhere on the display so
as to minimize movement but show as much of the line as possible.
A positive value is a 1-based target cell from the left side of
the display and a negative value is a 1-based target cell from the
right side of the display.
- getLinkMask: Whether or not we should take the time to get the
attributeMask for links. Reasons we might not want to include
knowning that we will fail and/or it taking an unreasonable
amount of time (AKA Gecko).
- stopFlash: if True, kill any flashed message that may be showing.
Nr F)� restoreSaved�
enableBraille�enableBrailleMonitorr! z!BrlTTY seems to have disappeared:r zBRAILLE LINE: '%s'z VISIBLE: '%s', cursor=%dr< rA z
brlmon failed)Nr r r )Nr r r rT )Nr r r )4�
_lastTextInfor� r� r` rS rd re � killFlash�_settingsManagerZ
getSetting�_brlAPIRunning�_brlAPIZ writeTextr rX �
LEVEL_WARNINGr[ �shutdownr= r� �init� _callbackr �ttyr� rF ro r� r� r6 �_getRangeForOffset�_adjustForWordWrap�
cursorCell�
LEVEL_INFO�log�info�brlapiZ WriteStructZ regionBeginZ
regionSizerr �cursorZattrOr�writer� �_monitorr ZBrlMonZshow_all�destroy�beginningIsShowing� endIsShowing)� panToCursorZtargetCursorCellr> � stopFlashZ lastTextObjZlastCaretOffsetZlastLineOffsetZlastCursorCellZcurrentTextObjZcurrentCaretOffsetZcurrentLineOffsetrG r3 r� r� r� r6 ZrangeForOffset�startPos�endPosZlogLineZ substringZsubmaskZ writeStructZsubMaskr r r �refresh s %
r� c C s$ t r t\aaa} tddd� da dS )NF)r� r� r )�_flashEventSourceId�_savedr� r� r� r� )� flashTimer r r �_flashCallback s
r� c C s: t r6t dkrtjt � | r2t\aaa}tddd� da d S )Nr F)r� r� )r� r �
source_remover� r� r� r� r� )r� r� r r r r� s
r� c C s* t dkr&tjt � td } tj| t�a d S )Nr � )r� r r� r� � timeout_addr� )r� r r r �resetFlashTimer! s
r� c C sN t r t dkrtjt � da n ttt| fa| dkr>tj| t�a n | dk rJda dS )a� Sets up the state needed to flash a message or clears any existing
flash if nothing is to be flashed.
Arguments:
- flashTime: if non-0, the number of milliseconds to display the
regions before reverting back to what was there before.
A 0 means to not do any flashing. A negative number
means display the message until some other message
comes along or the user presses a cursor routing key.
r i� Nif���) r� r r� r� r� r� r� r� r� )r� r r r �
_initFlash( s
r� c C sZ t |� | d }| d }t� t� }x|D ]}|j|� q*W t|� t|� tdd� dS )a Displays a list of regions on a single line, setting focus to the
specified region. The regionInfo parameter is something that is
typically returned by a call to braille_generator.generateBraille.
Arguments:
- regionInfo: a list where the first element is a list of regions
to display and the second element is the region
with focus (must be in the list from element 0)
- flashTime: if non-0, the number of milliseconds to display the
regions before reverting back to what was there before.
A 0 means to not do any flashing. A negative number
means display the message until some other message
comes along or the user presses a cursor routing key.
r r F)r� N)r� r� r| r~ r� r� r� )Z
regionInfor� r} Z
focusedRegionrG �itemr r r �displayRegionsC s
r� c C s< t |� t� t| |�}tt|�� t|� tddd� dS )aV Displays a single line, setting the cursor to the given position,
ensuring that the cursor is in view.
Arguments:
- message: the string to display
- cursor: the 0-based cursor position, where -1 (default) means no cursor
- flashTime: if non-0, the number of milliseconds to display the
regions before reverting back to what was there before.
A 0 means to not do any flashing. A negative number
means display the message until some other message
comes along or the user presses a cursor routing key.
TF)r� N)r� r� r' r� r| r� r� )�messager� r� r r r r �displayMessage_ s
r� c C s2 | j � }|r.| j� }d||f }t|tjd� dS )z^Displays a KeyboardEvent. Typically reserved for locking keys like
Caps Lock and Num Lock.z%s %s)r� N)ZgetLockingStateStringZ
getKeyNamer� r ZbrailleFlashTime)r� ZlockingStateStringZkeyname�msgr r r �displayKeyEventt s
r� c s t d � � td } d� | f }tjtj|d� t s>tj rF� | fS tt d }|j� \}}}}t t
� fdd�|��}|� r�d|d d |d d f }tjtj|d� |d
d |d d td kr�d}tjtj|d� n|d d |d d � } � | fS ) Nr z!BRAILLE: Current range: (%i, %i).Tr c s | d � ko| d k S S )Nr r r )�x)r� r r �<lambda>� s z$_adjustForWordWrap.<locals>.<lambda>z!BRAILLE: Adjusted range: (%i, %i)z?BRAILLE: Not adjusting range which is greater than display sizerT rT rT ) r� r� r rX r� r� r ZenableBrailleWordWrapr� �list�filter)r� r� rG Z
lineStringr� r� r� r )r� r r� ~ s" r� c C sR t td j� \}}}}x0|D ](}|d | ko<|d k n r |S q W ddgS )Nr r )r� r� r� )r: r3 r� r� r� �rr r r r� � s
r� c C sf t d }| dkrDt|�\}}t|d �\}}tdt|| td ��} tdt d | �t d< |t d kS )a Pans the display to the left, limiting the pan to the beginning
of the line being displayed.
Arguments:
- panAmount: the amount to pan. A value of 0 means the entire
width of the physical display.
Returns True if a pan actually happened.
r r )r� r� ro rF r� )� panAmount�oldXZoldStartZoldEndZnewStartZnewEndr r r �panLeft� s r� c C s4 t d }| dkrtd } t d | 7 < |t d kS )a Pans the display to the right, limiting the pan to the length
of the line being displayed.
Arguments:
- panAmount: the amount to pan. A value of 0 means the entire
width of the physical display.
Returns True if a pan actually happened.
r )r� r� )r� r� r r r �panRight� s
r� c C sd x*| t d k r*tjtjd| � t� sP qW x2| t d td kr^tjtjd| � t� s.P q.W dS )zOAutomatically pan left or right to make sure the current offset is
showing.r z braille.panToOffset (left) %dz braille.panToOffset (right) %dN)r� r rX rY r� r� r� )r: r r r � panToOffset� s
r� c C s t t� td� dS )z�Pans the display so the region with focus is displayed.
Arguments:
- inputEvent: the InputEvent instance that caused this to be called.
Returns True to mean the command should be consumed.
T)r� r� r� )Z
inputEventr r r �returnToRegionWithFocus� s r� c C s: | j d tj@ dkt_xtD ]}|jtj� q W t� dS )z�Turns contracted braille on or off based upon the event.
Arguments:
- event: an instance of input_event.BrailleEvent. event.event is
the dictionary form of the expanded BrlAPI event.
�flagsr N)r� r� ZKEY_FLG_TOGGLE_ONr r) r� rM r� )r� rG r r r rM � s
rM c C sJ t rt� dS | jd }tt�dkrF|td }td }t| j|� dS )z�Processes a cursor routing key event.
Arguments:
- event: an instance of input_event.BrailleEvent. event.event is
the dictionary form of the expanded BrlAPI event.
Nr� r r T)r� r� r� r= r� r� r; )r� r� r� r� r r r r; � s
r; c C s� t tj| � d}tjr<tjdkr<tjtjtj� tjtj� t rxy t | �}W n* tj
tj d� tj tj � d}Y nX tjr�tjdkr�tjd� |S )z�Handles BrlTTY command events. This passes commands on to Orca for
processing.
Arguments:
- event: the BrlAPI input event (expanded)
Fr zIssue processing event:)
r& r Z
LEVEL_FINEr ZtimeoutCallbackZ timeoutTime�signal�SIGALRM�alarmr� rX r� r[ )r� �consumedr r r �_processBrailleEvent s
r� c C sP yt jd�}W n* tjtjd� tjtj� t� dS |rLtt j|�� t S )z\Method to read a key from the BrlAPI bindings. This is a
gobject IO watch handler.
Fz!BrlTTY seems to have disappeared:N)
r� ZreadKeyr rX r� r[ r� r� Z
expandKeyCoder� )�sourceZ condition�keyr r r �_brlAPIKeyReader& s r� c C sf t stttj� t sdS tjtjdg� tj tj
B g}x | D ]}|j tj |B � q<W tj tj
|� dS )z�Hacky method to tell BrlTTY what to send and not send us via
the readKey method. This only works with BrlTTY v3.8 and better.
Arguments:
-keys: a list of BrlAPI commands.
Nr )r� r� r� r r� r� Z
ignoreKeysr� Z
rangeType_allZ KEY_TYPE_CMD�
KEY_CMD_ROUTEr� Z
acceptKeysZrangeType_command)rv ZkeySetr� r r r �setupKeyRanges5 s
r� � c C sr t rdS tjsdS | ay�tj� ay0tjd }tj � da t
j t
j dd| � W nj y0tjd }tj � da t
j t
j dd| � W n, tj
|� da t
j t
j d| � Y nX Y nX tjtjtjtjt�aW nH tk
r� t
j t
j d � dS t
j t
j d
� t
jt
j � da dS tj\}}|d gat�rBtj� d at
j t
j d
td td f � t� t d� dS )a" Initializes the braille module, connecting to the BrlTTY driver.
Arguments:
- callback: the method to call with a BrlTTY input event.
- tty: the tty port to take ownership of (default = 7)
Returns False if BrlTTY cannot be accessed or braille has
not been enabled.
TFZ
WINDOWPATHz5Braille module has been initialized using WINDOWPATH=z%sZXDG_VTNRz3Braille module has been initialized using XDG_VTNR=z0Braille module has been initialized using tty=%dzBrlApi is not definedz Could not initialize BrlTTY:r Nz braille display size = (%d, %d)r ) r� r r� r� r� Z
Connectionr� r �environZenterTtyModeWithPathr rX ZLEVEL_CONFIGURATIONZ enterTtyModer Z io_add_watchZfileDescriptorZPRIORITY_DEFAULTZIO_INr� �_brlAPISourceId� NameErrorr[ Z displaySizer� r� r� r� r� )�callbackr� Z
windowPathZvtnrr� �yr r r r� P sl
r� c C sp t rhda tjt� day tj� W n Y nX y tj� W n Y nX datr^tj� dat dga
ndS dS )zYShuts down the braille module. Returns True if the shutdown procedure
was run.
Fr Nr T) r� r r� r� r� Z leaveTtyModeZcloseConnectionr� r� �DEFAULT_DISPLAY_SIZEr� r r r r r� � s&
r� )Nr r r )TT)Tr TT)T)r rT )rT r )r )r )N)Nr� )�rQ Z__id__� __version__Z__date__Z
__copyright__Z __license__r� r r� Z
gi.repositoryr r* � ImportErrorr� r� Z_brlAPIAvailabler� r� r! r r Z
getManagerr� r r� r r r r
r r Z getLoggerZ_loggerZnewLogr� Z
orca_platformr
rX rZ r� ZdontInteruptSpeechKeysZKEY_CMD_FWINLTZKEY_CMD_FWINRTZ KEY_CMD_LNUPZ KEY_CMD_LNDNZ command_nameZBRAILLE_LINE_LEFTZBRAILLE_LINE_RIGHTZBRAILLE_LINE_UPZBRAILLE_LINE_DOWNZBRAILLE_FREEZEZKEY_CMD_FREEZEZBRAILLE_TOP_LEFTZKEY_CMD_TOP_LEFTZBRAILLE_BOTTOM_LEFTZKEY_CMD_BOT_LEFTZ BRAILLE_HOMEZ KEY_CMD_HOMEZBRAILLE_SIX_DOTSZKEY_CMD_SIXDOTSZBRAILLE_ROUTE_CURSORr� ZBRAILLE_CUT_BEGINZKEY_CMD_CUTBEGINZBRAILLE_CUT_LINEZKEY_CMD_CUTLINEr� r� r� r� r� r� r� r� r� r� r� r� ZCZ_CZ_G1ZES_ES_G1ZFR_CA_G2ZFR_FR_G2ZLV_LV_G1ZNL_NL_G1ZNO_NO_G0ZNO_NO_G1ZNO_NO_G2ZNO_NO_G3ZPL_PL_G1ZPT_PT_G1ZSE_SE_G1ZAR_AR_G1ZCY_CY_G1ZCY_CY_G2ZDE_DE_G0ZDE_DE_G1ZDE_DE_G2ZEN_GB_G2ZEN_GB_G1ZEN_US_G1ZEN_US_G2ZFR_CA_G1ZFR_FR_G1ZGR_GR_G1ZHI_IN_G1Z
HU_HU_8DOTZHU_HU_G1ZIT_IT_G1ZNL_BE_G1r r r# r0 r& r' rR r] r` ry r{ r| r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� rM r; r� r� r� r� r� r r r r �<module> s8
E w-i
5
o
W