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# Orca
#
# Copyright 2005-2009 Sun Microsystems Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., Franklin Street, Fifth Floor,
# Boston MA  02110-1301 USA.

"""Custom script for StarOffice and OpenOffice."""

__id__        = "$Id$"
__version__   = "$Revision$"
__date__      = "$Date$"
__copyright__ = "Copyright (c) 2005-2009 Sun Microsystems Inc."
__license__   = "LGPL"

import pyatspi

import orca.speech_generator as speech_generator
import orca.settings as settings

from orca.orca_i18n import ngettext # for ngettext support
from orca.orca_i18n import _ # for gettext support

import script_settings

class SpeechGenerator(speech_generator.SpeechGenerator):

    # pylint: disable-msg=W0142

    def __init__(self, script):
        speech_generator.SpeechGenerator.__init__(self, script)

    def __overrideParagraph(self, obj, **args):
        # Treat a paragraph which is serving as a text entry in a dialog
        # as a text object.
        #
        role = args.get('role', obj.getRole())
        override = \
            role == "text frame" \
            or (role == pyatspi.ROLE_PARAGRAPH \
                and self._script.getAncestor(obj,
                                             [pyatspi.ROLE_DIALOG],
                                             [pyatspi.ROLE_APPLICATION]))
        return override

    def _generateRoleName(self, obj, **args):
        result = []
        role = args.get('role', obj.getRole())
        if role in [pyatspi.ROLE_PUSH_BUTTON, pyatspi.ROLE_TOGGLE_BUTTON] \
           and obj.parent.getRole() == pyatspi.ROLE_TOOL_BAR:
            # We don't speak roles for the objects in the toolbar.
            #
            pass
        else:
            # Treat a paragraph which is serving as a text entry in a dialog
            # as a text object.
            #
            override = self.__overrideParagraph(obj, **args)
            if override:
                oldRole = self._overrideRole(pyatspi.ROLE_TEXT, args)
            # Treat a paragraph which is inside of a spreadsheet cell as
            # a spreadsheet cell.
            #
            elif role == 'ROLE_SPREADSHEET_CELL':
                oldRole = self._overrideRole(pyatspi.ROLE_TABLE_CELL, args)
                override = True
            result.extend(speech_generator.SpeechGenerator._generateRoleName(
                          self, obj, **args))
            if override:
                self._restoreRole(oldRole, args)
        return result

    def _generateTextRole(self, obj, **args):
        result = []
        role = args.get('role', obj.getRole())
        if role != pyatspi.ROLE_PARAGRAPH \
           or self.__overrideParagraph(obj, **args):
            result.extend(self._generateRoleName(obj, **args))
        return result

    def _generateLabel(self, obj, **args):
        """Returns the label for an object as an array of strings (and
        possibly voice and audio specifications).  The label is
        determined by the getDisplayedLabel of the script, and an
        empty array will be returned if no label can be found.
        """
        result = []
        override = self.__overrideParagraph(obj, **args)
        label = self._script.getDisplayedLabel(obj) or ""
        if not label and override:
            label = self._script.getDisplayedLabel(obj.parent) or ""
        result.append(label.strip())
        return result

    def _generateLabelOrName(self, obj, **args):
        """Gets the label or the name if the label is not preset."""
        result = []
        override = self.__overrideParagraph(obj, **args)
        # Treat a paragraph which is serving as a text entry in a dialog
        # as a text object.
        #
        if override:
            result.extend(self._generateLabel(obj, **args))
            if len(result) == 0 and obj.parent:
                parentLabel = self._generateLabel(obj.parent, **args)
                # If we aren't already focused, we will have spoken the
                # parent as part of the speech context and do not want
                # to repeat it.
                #
                alreadyFocused = args.get('alreadyFocused', False)
                if alreadyFocused:
                    result.extend(parentLabel)
                # If we still don't have a label, look to the name.
                #
                if not parentLabel and obj.name and len(obj.name):
                    result.append(obj.name)
        else:
            result.extend(speech_generator.SpeechGenerator._generateLabelOrName(
                self, obj, **args))
        return result

    def _generateDescription(self, obj, **args):
        """Returns an array of strings (and possibly voice and audio
        specifications) that represent the description of the object,
        if that description is different from that of the name and
        label.
        """
        result = []
        if obj.description:
            # The description of some OOo paragraphs consists of the name
            # and the displayed text, with punctuation added. Try to spot
            # this and, if found, ignore the description.
            #
            text = self._script.getDisplayedText(obj) or ""
            desc = obj.description.replace(text, "")
            for item in obj.name.split():
                desc = desc.replace(item, "")
            for char in desc.decode("UTF-8").strip():
                if char.isalnum():
                    result.append(obj.description)
                    break

        return result

    def _generateToggleState(self, obj, **args):
        """Treat push buttons (which act like toggle buttons) and toggle
        buttons in the toolbar specially.  This is so we can have more
        natural sounding speech such as "bold on", "bold off", etc."""
        result = []
        role = args.get('role', obj.getRole())
        if role in [pyatspi.ROLE_PUSH_BUTTON, pyatspi.ROLE_TOGGLE_BUTTON] \
           and obj.parent.getRole() == pyatspi.ROLE_TOOL_BAR:
            if obj.getState().contains(pyatspi.STATE_CHECKED):
                # Translators: this represents the state of a check box
                #
                result.append(_("on"))
            else:
                # Translators: this represents the state of a check box
                #
                result.append(_("off"))
        elif role == pyatspi.ROLE_TOGGLE_BUTTON:
            result.extend(speech_generator.SpeechGenerator._generateToggleState(
                self, obj, **args))
        return result

    def _generateRowHeader(self, obj, **args):
        """Returns an array of strings (and possibly voice and audio
        specifications) that represent the row header for an object
        that is in a table, if it exists.  Otherwise, an empty array
        is returned. Overridden here so that we can get the dynamic
        row header(s).
        """
        result = []
        try:
            table = obj.parent.queryTable()
        except:
            pass
        else:
            index = self._script.getCellIndex(obj)
            rowIndex = table.getRowAtIndex(index)
            if rowIndex >= 0 \
               and table in self._script.dynamicRowHeaders:
                column = self._script.dynamicRowHeaders[table]
                header = self._script.getDynamicColumnHeaderCell(obj, column)
                try:
                    headerText = header.queryText()
                except:
                    headerText = None
                if header.childCount > 0:
                    for child in header:
                        text = self._script.getText(child, 0, -1)
                        if text:
                            result.append(text)
                elif headerText:
                    text = self._script.getText(header, 0, -1)
                    if text:
                        result.append(text)
        return result

    def _generateNewRowHeader(self, obj, **args):
        result = []
        # Check to see if this spread sheet cell has either a dynamic
        # row heading associated with it.
        #
        table = self._script.getTable(obj)
        parent = obj.parent
        try:
            parentTable = parent.queryTable()
        except NotImplementedError:
            parentTable = None
        index = self._script.getCellIndex(obj)
        if "lastRow" in self._script.pointOfReference and \
           self._script.pointOfReference["lastRow"] != \
           parentTable.getRowAtIndex(index):
            if table in self._script.dynamicRowHeaders:
                column = self._script.dynamicRowHeaders[table]
                header = self._script.getDynamicColumnHeaderCell(obj, column)
                try:
                    headerText = header.queryText()
                except:
                    headerText = None
                if header.childCount > 0:
                    for child in header:
                        text = self._script.getText(child, 0, -1)
                        if text:
                            result.append(text)
                elif headerText:
                    text = self._script.getText(header, 0, -1)
                    if text:
                        result.append(text)
        return result

    def _generateColumnHeader(self, obj, **args):
        """Returns an array of strings (and possibly voice and audio
        specifications) that represent the column header for an object
        that is in a table, if it exists.  Otherwise, an empty array
        is returned. Overridden here so that we can get the dynamic
        column header(s).
        """
        result = []
        try:
            table = obj.parent.queryTable()
        except:
            pass
        else:
            index = self._script.getCellIndex(obj)
            columnIndex = table.getColumnAtIndex(index)
            if columnIndex >= 0 \
               and table in self._script.dynamicColumnHeaders:
                row = self._script.dynamicColumnHeaders[table]
                header = self._script.getDynamicRowHeaderCell(obj, row)
                try:
                    headerText = header.queryText()
                except:
                    headerText = None
                if header.childCount > 0:
                    for child in header:
                        text = self._script.getText(child, 0, -1)
                        if text:
                            result.append(text)
                elif headerText:
                    text = self._script.getText(header, 0, -1)
                    if text:
                        result.append(text)
        return result

    def _generateNewColumnHeader(self, obj, **args):
        result = []
        # Check to see if this spread sheet cell has either a dynamic
        # row heading associated with it.
        #
        table = self._script.getTable(obj)
        parent = obj.parent
        try:
            parentTable = parent.queryTable()
        except NotImplementedError:
            parentTable = None
        index = self._script.getCellIndex(obj)
        if "lastColumn" in self._script.pointOfReference and \
           self._script.pointOfReference["lastColumn"] != \
           parentTable.getColumnAtIndex(index):
            if table in self._script.dynamicColumnHeaders:
                row = self._script.dynamicColumnHeaders[table]
                header = self._script.getDynamicRowHeaderCell(obj, row)
                try:
                    headerText = header.queryText()
                except:
                    headerText = None
                if header.childCount > 0:
                    for child in header:
                        text = self._script.getText(child, 0, -1)
                        if text:
                            result.append(text)
                elif headerText:
                    text = self._script.getText(header, 0, -1)
                    if text:
                        result.append(text)
        return result

    def _generateTooLong(self, obj, **args):
        """If there is text in this spread sheet cell, compare the size of
        the text within the table cell with the size of the actual table
        cell and report back to the user if it is larger.

        Returns an indication of how many characters are greater than the size
        of the spread sheet cell, or None if the message fits.
        """
        result = []
        try:
            text = obj.queryText()
            objectText = self._script.getText(obj, 0, -1).decode("UTF-8")
            extents = obj.queryComponent().getExtents(pyatspi.DESKTOP_COORDS)
        except NotImplementedError:
            pass
        else:
            tooLongCount = 0
            for i in range(0, len(objectText)):
                [x, y, width, height] = text.getRangeExtents(i, i + 1, 0)
                if x < extents.x:
                    tooLongCount += 1
                elif (x + width) > extents.x + extents.width:
                    tooLongCount += len(objectText) - i
                    break
            if tooLongCount > 0:
                # Translators: people can enter a string of text that is
                # too wide for a spreadsheet cell.  This string will be
                # spoken if such a cell is encountered.
                #
                result = [ngettext("%d character too long",
                                   "%d characters too long",
                                   tooLongCount) % tooLongCount]
        return result

    def _generateSpreadSheetCell(self, obj, **args):
        result = []
        if self._script.inputLineForCell == None:
            self._script.inputLineForCell = \
                self._script.locateInputLine(obj)
        try:
            if obj.queryText():
                objectText = self._script.getText(obj, 0, -1)
                if (not script_settings.speakSpreadsheetCoordinates \
                    or args.get('formatType', 'unfocused') == 'basicWhereAmI') \
                   and len(objectText) == 0:
                    # Translators: this indicates an empty (blank) spread
                    # sheet cell.
                    #
                    objectText = _("blank")
                result.append(objectText)
        except NotImplementedError:
            pass

        if script_settings.speakSpreadsheetCoordinates \
           and args.get('formatType', 'unfocused') != 'basicWhereAmI':
            nameList = obj.name.split()
            # We were assuming that the word for "cell" would always
            # precede the coordinates. This is not the case for all
            # languages (e.g. Hungarian). See bug #562532. Therefore
            # examine each item and choose the one which contains a
            # digit.
            #
            for name in nameList:
                for char in name.decode("UTF-8"):
                    if char.isdigit():
                        result.append(name)
                        break

        tooLong = self._generateTooLong(obj, **args)
        if tooLong and len(tooLong):
            result.extend(self._generatePause(obj, **args))
            result.extend(tooLong)

        return result

    def _generateRealTableCell(self, obj, **args):
        """Get the speech for a table cell. If this isn't inside a
        spread sheet, just return the utterances returned by the default
        table cell speech handler.

        Arguments:
        - obj: the table cell

        Returns a list of utterances to be spoken for the object.
        """
        result = []
        if self._script.isSpreadSheetCell(obj):
            result.extend(self._generateSpreadSheetCell(obj, **args))
        else:
            # Check to see how many children this table cell has. If it's
            # just one (or none), then pass it on to the superclass to be
            # processed.
            #
            # If it's more than one, then get the speech for each child,
            # and call this method again.
            #
            if obj.childCount <= 1:
                result.extend(speech_generator.SpeechGenerator.\
                              _generateRealTableCell(self, obj, **args))
            else:
                for child in obj:
                    result.extend(self._generateRealTableCell(child, **args))
        return result

    def _generateTableCellRow(self, obj, **args):
        """Get the speech for a table cell row or a single table cell
        if settings.readTableCellRow is False. If this isn't inside a
        spread sheet, just return the utterances returned by the default
        table cell speech handler.

        Arguments:
        - obj: the table cell

        Returns a list of utterances to be spoken for the object.
        """
        result = []
        if self._script.isSpreadSheetCell(obj):
            if settings.readTableCellRow:
                parent = obj.parent
                parentTable = parent.queryTable()
                index = self._script.getCellIndex(obj)
                row = parentTable.getRowAtIndex(index)
                column = parentTable.getColumnAtIndex(index)
                # This is an indication of whether we should speak all the
                # table cells (the user has moved focus up or down a row),
                # or just the current one (focus has moved left or right in
                # the same row).
                #
                speakAll = True
                if "lastRow" in self._script.pointOfReference and \
                    "lastColumn" in self._script.pointOfReference:
                    pointOfReference = self._script.pointOfReference
                    speakAll = (pointOfReference["lastRow"] != row) or \
                           ((row == 0 or row == parentTable.nRows-1) and \
                            pointOfReference["lastColumn"] == column)
                if speakAll:
                    [startIndex, endIndex] = \
                        self._script.getSpreadSheetRowRange(obj)
                    for i in range(startIndex, endIndex+1):
                        cell = parentTable.getAccessibleAt(row, i)
                        showing = cell.getState().contains( \
                                      pyatspi.STATE_SHOWING)
                        if showing:
                            result.extend(self._generateRealTableCell(
                                              cell, **args))
                else:
                    result.extend(self._generateRealTableCell(obj, **args))
            else:
                result.extend(self._generateRealTableCell(obj, **args))
        else:
            result.extend(
                speech_generator.SpeechGenerator._generateTableCellRow(
                    self, obj, **args))
            if not len(result) and settings.speakBlankLines:
                # Translators: "blank" is a short word to mean the
                # user has navigated to an empty line.
                #
                result.append(_("blank"))
        return result

    def generateSpeech(self, obj, **args):
        result = []
        if args.get('formatType', 'unfocused') == 'basicWhereAmI' \
           and self._script.isSpreadSheetCell(obj):
            oldRole = self._overrideRole('ROLE_SPREADSHEET_CELL', args)
            # In addition, if focus is in a cell being edited, we cannot
            # query the accessible table interface for coordinates and the
            # like because we're temporarily in an entirely different object
            # which is outside of the table. This makes things difficult.
            # However, odds are that if we're doing a whereAmI in a cell
            # which we are editing, we have some pointOfReference info
            # we can use to guess the coordinates.
            #
            args['guessCoordinates'] = obj.getRole() == pyatspi.ROLE_PARAGRAPH
            result.extend(speech_generator.SpeechGenerator.\
                                           generateSpeech(self, obj, **args))
            del args['guessCoordinates']
            self._restoreRole(oldRole, args)
        else:
            result.extend(speech_generator.SpeechGenerator.\
                                           generateSpeech(self, obj, **args))
        return result

:: Command execute ::

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