File indexing completed on 2024-04-28 05:50:55

 /*
  *  SPDX-FileCopyrightText: 2012 Frederik Gladhorn <gladhorn@kde.org>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "TerminalDisplayAccessible.h"
 #include "session/SessionController.h"
 #include <klocalizedstring.h>
 
 #include "terminalDisplay/TerminalFonts.h"
 
 using namespace Konsole;
 
 TerminalDisplayAccessible::TerminalDisplayAccessible(TerminalDisplay *display)
     : QAccessibleWidget(display, QAccessible::Terminal, display->sessionController()->userTitle())
 {
 }
 
 QString TerminalDisplayAccessible::text(QAccessible::Text t) const
 {
     if (t == QAccessible::Value) {
         return visibleText();
     }
     return QAccessibleWidget::text(t);
 }
 
 int TerminalDisplayAccessible::characterCount() const
 {
     return display()->_usedLines * display()->_usedColumns;
 }
 
 int TerminalDisplayAccessible::cursorPosition() const
 {
     if (display()->screenWindow() == nullptr) {
         return 0;
     }
 
     int offset = display()->_usedColumns * display()->screenWindow()->screen()->getCursorY();
     return offset + display()->screenWindow()->screen()->getCursorX();
 }
 
 void TerminalDisplayAccessible::selection(int selectionIndex, int *startOffset, int *endOffset) const
 {
     *startOffset = 0;
     *endOffset = 0;
     if ((display()->screenWindow() == nullptr) || (selectionIndex != 0)) {
         return;
     }
 
     int startLine = 0;
     int startColumn = 0;
     int endLine = 0;
     int endColumn = 0;
     display()->screenWindow()->getSelectionStart(startColumn, startLine);
     display()->screenWindow()->getSelectionEnd(endColumn, endLine);
     if ((startLine == endLine) && (startColumn == endColumn)) {
         return;
     }
     *startOffset = positionToOffset(startColumn, startLine);
     *endOffset = positionToOffset(endColumn, endLine);
 }
 
 int TerminalDisplayAccessible::selectionCount() const
 {
     if (display()->screenWindow() == nullptr) {
         return 0;
     }
 
     int startLine = 0;
     int startColumn = 0;
     int endLine = 0;
     int endColumn = 0;
     display()->screenWindow()->getSelectionStart(startColumn, startLine);
     display()->screenWindow()->getSelectionEnd(endColumn, endLine);
     return ((startLine == endLine) && (startColumn == endColumn)) ? 0 : 1;
 }
 
 QString TerminalDisplayAccessible::visibleText() const
 {
     // This function should be const to allow calling it from const interface functions.
     TerminalDisplay *display = const_cast<TerminalDisplayAccessible *>(this)->display();
     if (display->screenWindow() == nullptr) {
         return QString();
     }
 
     return display->screenWindow()->screen()->text(0, display->_usedColumns * display->_usedLines, Screen::PreserveLineBreaks);
 }
 
 void TerminalDisplayAccessible::addSelection(int startOffset, int endOffset)
 {
     if (display()->screenWindow() == nullptr) {
         return;
     }
     display()->screenWindow()->setSelectionStart(columnForOffset(startOffset), lineForOffset(startOffset), false);
     display()->screenWindow()->setSelectionEnd(columnForOffset(endOffset), lineForOffset(endOffset), display()->trimTrailingWhitespace());
 }
 
 QString TerminalDisplayAccessible::attributes(int offset, int *startOffset, int *endOffset) const
 {
     // FIXME: this function should return css like attributes
     // as defined in the web ARIA standard
     Q_UNUSED(offset)
     *startOffset = 0;
     *endOffset = characterCount();
     return QString();
 }
 
 QRect TerminalDisplayAccessible::characterRect(int offset) const
 {
     int row = offset / display()->_usedColumns;
     int col = offset - row * display()->_usedColumns;
     QPoint position = QPoint(col * display()->terminalFont()->fontWidth(), row * display()->terminalFont()->fontHeight());
     return QRect(position, QSize(display()->terminalFont()->fontWidth(), display()->terminalFont()->fontHeight()));
 }
 
 int TerminalDisplayAccessible::offsetAtPoint(const QPoint &point) const
 {
     // FIXME return the offset into the text from the given point
     Q_UNUSED(point)
     return 0;
 }
 
 void TerminalDisplayAccessible::removeSelection(int selectionIndex)
 {
     if ((display()->screenWindow() == nullptr) || (selectionIndex != 0)) {
         return;
     }
     display()->screenWindow()->clearSelection();
 }
 
 void TerminalDisplayAccessible::scrollToSubstring(int startIndex, int endIndex)
 {
     // FIXME: make sure the string between startIndex and endIndex is visible
     Q_UNUSED(startIndex)
     Q_UNUSED(endIndex)
 }
 
 void TerminalDisplayAccessible::setCursorPosition(int position)
 {
     if (display()->screenWindow() == nullptr) {
         return;
     }
 
     display()->screenWindow()->screen()->setCursorYX(lineForOffset(position), columnForOffset(position));
 }
 
 void *TerminalDisplayAccessible::interface_cast(QAccessible::InterfaceType type)
 {
     if (type == QAccessible::TextInterface) {
         return static_cast<QAccessibleTextInterface *>(this);
     }
 
     return QAccessibleWidget::interface_cast(type);
 }
 
 void TerminalDisplayAccessible::setSelection(int selectionIndex, int startOffset, int endOffset)
 {
     if (selectionIndex != 0) {
         return;
     }
     addSelection(startOffset, endOffset);
 }
 
 QString TerminalDisplayAccessible::text(int startOffset, int endOffset) const
 {
     if (display()->screenWindow() == nullptr) {
         return QString();
     }
 
     return display()->screenWindow()->screen()->text(startOffset, endOffset, Screen::PreserveLineBreaks);
 }
 
 TerminalDisplay *TerminalDisplayAccessible::display() const
 {
     return qobject_cast<TerminalDisplay *>(widget());
 }