/** * @file lltexteditor.cpp * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ // Text editor widget to let users enter a a multi-line ASCII document. #include "linden_common.h" #define LLTEXTEDITOR_CPP #include "lltexteditor.h" #include "llfontfreetype.h" // for LLFontFreetype::FIRST_CHAR #include "llfontgl.h" #include "llgl.h" // LLGLSUIDefault() #include "lllocalcliprect.h" #include "llrender.h" #include "llui.h" #include "lluictrlfactory.h" #include "llrect.h" #include "llfocusmgr.h" #include "lltimer.h" #include "llmath.h" #include "llclipboard.h" #include "llscrollbar.h" #include "llstl.h" #include "llstring.h" #include "llkeyboard.h" #include "llkeywords.h" #include "llundo.h" #include "llviewborder.h" #include "llcontrol.h" #include "llwindow.h" #include "lltextparser.h" #include "llscrollcontainer.h" #include "llpanel.h" #include "llurlregistry.h" #include "lltooltip.h" #include "llmenugl.h" #include <queue> #include "llcombobox.h" // // Globals // static LLDefaultChildRegistry::Register<LLTextEditor> r("simple_text_editor"); // Compiler optimization, generate extern template template class LLTextEditor* LLView::getChild<class LLTextEditor>( const std::string& name, BOOL recurse) const; // // Constants // const S32 UI_TEXTEDITOR_LINE_NUMBER_MARGIN = 32; const S32 UI_TEXTEDITOR_LINE_NUMBER_DIGITS = 4; const S32 SPACES_PER_TAB = 4; /////////////////////////////////////////////////////////////////// class LLTextEditor::TextCmdInsert : public LLTextBase::TextCmd { public: TextCmdInsert(S32 pos, BOOL group_with_next, const LLWString &ws, LLTextSegmentPtr segment) : TextCmd(pos, group_with_next, segment), mWString(ws) { } virtual ~TextCmdInsert() {} virtual BOOL execute( LLTextBase* editor, S32* delta ) { *delta = insert(editor, getPosition(), mWString ); LLWStringUtil::truncate(mWString, *delta); //mWString = wstring_truncate(mWString, *delta); return (*delta != 0); } virtual S32 undo( LLTextBase* editor ) { remove(editor, getPosition(), mWString.length() ); return getPosition(); } virtual S32 redo( LLTextBase* editor ) { insert(editor, getPosition(), mWString ); return getPosition() + mWString.length(); } private: LLWString mWString; }; /////////////////////////////////////////////////////////////////// class LLTextEditor::TextCmdAddChar : public LLTextBase::TextCmd { public: TextCmdAddChar( S32 pos, BOOL group_with_next, llwchar wc, LLTextSegmentPtr segment) : TextCmd(pos, group_with_next, segment), mWString(1, wc), mBlockExtensions(FALSE) { } virtual void blockExtensions() { mBlockExtensions = TRUE; } virtual BOOL canExtend(S32 pos) const { // cannot extend text with custom segments if (!mSegments.empty()) return FALSE; return !mBlockExtensions && (pos == getPosition() + (S32)mWString.length()); } virtual BOOL execute( LLTextBase* editor, S32* delta ) { *delta = insert(editor, getPosition(), mWString); LLWStringUtil::truncate(mWString, *delta); //mWString = wstring_truncate(mWString, *delta); return (*delta != 0); } virtual BOOL extendAndExecute( LLTextBase* editor, S32 pos, llwchar wc, S32* delta ) { LLWString ws; ws += wc; *delta = insert(editor, pos, ws); if( *delta > 0 ) { mWString += wc; } return (*delta != 0); } virtual S32 undo( LLTextBase* editor ) { remove(editor, getPosition(), mWString.length() ); return getPosition(); } virtual S32 redo( LLTextBase* editor ) { insert(editor, getPosition(), mWString ); return getPosition() + mWString.length(); } private: LLWString mWString; BOOL mBlockExtensions; }; /////////////////////////////////////////////////////////////////// class LLTextEditor::TextCmdOverwriteChar : public LLTextBase::TextCmd { public: TextCmdOverwriteChar( S32 pos, BOOL group_with_next, llwchar wc) : TextCmd(pos, group_with_next), mChar(wc), mOldChar(0) {} virtual BOOL execute( LLTextBase* editor, S32* delta ) { mOldChar = editor->getWText()[getPosition()]; overwrite(editor, getPosition(), mChar); *delta = 0; return TRUE; } virtual S32 undo( LLTextBase* editor ) { overwrite(editor, getPosition(), mOldChar); return getPosition(); } virtual S32 redo( LLTextBase* editor ) { overwrite(editor, getPosition(), mChar); return getPosition()+1; } private: llwchar mChar; llwchar mOldChar; }; /////////////////////////////////////////////////////////////////// class LLTextEditor::TextCmdRemove : public LLTextBase::TextCmd { public: TextCmdRemove( S32 pos, BOOL group_with_next, S32 len, segment_vec_t& segments ) : TextCmd(pos, group_with_next), mLen(len) { std::swap(mSegments, segments); } virtual BOOL execute( LLTextBase* editor, S32* delta ) { mWString = editor->getWText().substr(getPosition(), mLen); *delta = remove(editor, getPosition(), mLen ); return (*delta != 0); } virtual S32 undo( LLTextBase* editor ) { insert(editor, getPosition(), mWString); return getPosition() + mWString.length(); } virtual S32 redo( LLTextBase* editor ) { remove(editor, getPosition(), mLen ); return getPosition(); } private: LLWString mWString; S32 mLen; }; /////////////////////////////////////////////////////////////////// LLTextEditor::Params::Params() : default_text("default_text"), prevalidate_callback("prevalidate_callback"), embedded_items("embedded_items", false), ignore_tab("ignore_tab", true), show_line_numbers("show_line_numbers", false), default_color("default_color"), commit_on_focus_lost("commit_on_focus_lost", false), show_context_menu("show_context_menu") { addSynonym(prevalidate_callback, "text_type"); } LLTextEditor::LLTextEditor(const LLTextEditor::Params& p) : LLTextBase(p), mBaseDocIsPristine(TRUE), mPristineCmd( NULL ), mLastCmd( NULL ), mDefaultColor( p.default_color() ), mShowLineNumbers ( p.show_line_numbers ), mCommitOnFocusLost( p.commit_on_focus_lost), mAllowEmbeddedItems( p.embedded_items ), mMouseDownX(0), mMouseDownY(0), mTabsToNextField(p.ignore_tab), mPrevalidateFunc(p.prevalidate_callback()), mContextMenu(NULL), mShowContextMenu(p.show_context_menu) { mSourceID.generate(); //FIXME: use image? LLViewBorder::Params params; params.name = "text ed border"; params.rect = getLocalRect(); params.bevel_style = LLViewBorder::BEVEL_IN; params.border_thickness = 1; params.visible = p.border_visible; mBorder = LLUICtrlFactory::create<LLViewBorder> (params); addChild( mBorder ); setText(p.default_text()); if (mShowLineNumbers) { mHPad += UI_TEXTEDITOR_LINE_NUMBER_MARGIN; updateRects(); } mParseOnTheFly = TRUE; } void LLTextEditor::initFromParams( const LLTextEditor::Params& p) { LLTextBase::initFromParams(p); // HACK: text editors always need to be enabled so that we can scroll LLView::setEnabled(true); if (p.commit_on_focus_lost.isProvided()) { mCommitOnFocusLost = p.commit_on_focus_lost; } updateAllowingLanguageInput(); } LLTextEditor::~LLTextEditor() { gFocusMgr.releaseFocusIfNeeded( this ); // calls onCommit() while LLTextEditor still valid // Scrollbar is deleted by LLView std::for_each(mUndoStack.begin(), mUndoStack.end(), DeletePointer()); // context menu is owned by menu holder, not us //delete mContextMenu; } //////////////////////////////////////////////////////////// // LLTextEditor // Public methods void LLTextEditor::setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params) { // validate incoming text if necessary if (mPrevalidateFunc) { LLWString test_text = utf8str_to_wstring(utf8str); if (!mPrevalidateFunc(test_text)) { // not valid text, nothing to do return; } } blockUndo(); deselect(); mParseOnTheFly = FALSE; LLTextBase::setText(utf8str, input_params); mParseOnTheFly = TRUE; resetDirty(); } void LLTextEditor::selectNext(const std::string& search_text_in, BOOL case_insensitive, BOOL wrap) { if (search_text_in.empty()) { return; } LLWString text = getWText(); LLWString search_text = utf8str_to_wstring(search_text_in); if (case_insensitive) { LLWStringUtil::toLower(text); LLWStringUtil::toLower(search_text); } if (mIsSelecting) { LLWString selected_text = text.substr(mSelectionEnd, mSelectionStart - mSelectionEnd); if (selected_text == search_text) { // We already have this word selected, we are searching for the next. setCursorPos(mCursorPos + search_text.size()); } } S32 loc = text.find(search_text,mCursorPos); // If Maybe we wrapped, search again if (wrap && (-1 == loc)) { loc = text.find(search_text); } // If still -1, then search_text just isn't found. if (-1 == loc) { mIsSelecting = FALSE; mSelectionEnd = 0; mSelectionStart = 0; return; } setCursorPos(loc); mIsSelecting = TRUE; mSelectionEnd = mCursorPos; mSelectionStart = llmin((S32)getLength(), (S32)(mCursorPos + search_text.size())); } BOOL LLTextEditor::replaceText(const std::string& search_text_in, const std::string& replace_text, BOOL case_insensitive, BOOL wrap) { BOOL replaced = FALSE; if (search_text_in.empty()) { return replaced; } LLWString search_text = utf8str_to_wstring(search_text_in); if (mIsSelecting) { LLWString text = getWText(); LLWString selected_text = text.substr(mSelectionEnd, mSelectionStart - mSelectionEnd); if (case_insensitive) { LLWStringUtil::toLower(selected_text); LLWStringUtil::toLower(search_text); } if (selected_text == search_text) { insertText(replace_text); replaced = TRUE; } } selectNext(search_text_in, case_insensitive, wrap); return replaced; } void LLTextEditor::replaceTextAll(const std::string& search_text, const std::string& replace_text, BOOL case_insensitive) { startOfDoc(); selectNext(search_text, case_insensitive, FALSE); BOOL replaced = TRUE; while ( replaced ) { replaced = replaceText(search_text,replace_text, case_insensitive, FALSE); } } S32 LLTextEditor::prevWordPos(S32 cursorPos) const { LLWString wtext(getWText()); while( (cursorPos > 0) && (wtext[cursorPos-1] == ' ') ) { cursorPos--; } while( (cursorPos > 0) && LLWStringUtil::isPartOfWord( wtext[cursorPos-1] ) ) { cursorPos--; } return cursorPos; } S32 LLTextEditor::nextWordPos(S32 cursorPos) const { LLWString wtext(getWText()); while( (cursorPos < getLength()) && LLWStringUtil::isPartOfWord( wtext[cursorPos] ) ) { cursorPos++; } while( (cursorPos < getLength()) && (wtext[cursorPos] == ' ') ) { cursorPos++; } return cursorPos; } const LLTextSegmentPtr LLTextEditor::getPreviousSegment() const { static LLPointer<LLIndexSegment> index_segment = new LLIndexSegment; index_segment->setStart(mCursorPos); index_segment->setEnd(mCursorPos); // find segment index at character to left of cursor (or rightmost edge of selection) segment_set_t::const_iterator it = mSegments.lower_bound(index_segment); if (it != mSegments.end()) { return *it; } else { return LLTextSegmentPtr(); } } void LLTextEditor::getSelectedSegments(LLTextEditor::segment_vec_t& segments) const { S32 left = hasSelection() ? llmin(mSelectionStart, mSelectionEnd) : mCursorPos; S32 right = hasSelection() ? llmax(mSelectionStart, mSelectionEnd) : mCursorPos; return getSegmentsInRange(segments, left, right, true); } void LLTextEditor::getSegmentsInRange(LLTextEditor::segment_vec_t& segments_out, S32 start, S32 end, bool include_partial) const { segment_set_t::const_iterator first_it = getSegIterContaining(start); segment_set_t::const_iterator end_it = getSegIterContaining(end - 1); if (end_it != mSegments.end()) ++end_it; for (segment_set_t::const_iterator it = first_it; it != end_it; ++it) { LLTextSegmentPtr segment = *it; if (include_partial || (segment->getStart() >= start && segment->getEnd() <= end)) { segments_out.push_back(segment); } } } BOOL LLTextEditor::selectionContainsLineBreaks() { if (hasSelection()) { S32 left = llmin(mSelectionStart, mSelectionEnd); S32 right = left + llabs(mSelectionStart - mSelectionEnd); LLWString wtext = getWText(); for( S32 i = left; i < right; i++ ) { if (wtext[i] == '\n') { return TRUE; } } } return FALSE; } S32 LLTextEditor::indentLine( S32 pos, S32 spaces ) { // Assumes that pos is at the start of the line // spaces may be positive (indent) or negative (unindent). // Returns the actual number of characters added or removed. llassert(pos >= 0); llassert(pos <= getLength() ); S32 delta_spaces = 0; if (spaces >= 0) { // Indent for(S32 i=0; i < spaces; i++) { delta_spaces += addChar(pos, ' '); } } else { // Unindent for(S32 i=0; i < -spaces; i++) { LLWString wtext = getWText(); if (wtext[pos] == ' ') { delta_spaces += remove( pos, 1, FALSE ); } } } return delta_spaces; } void LLTextEditor::indentSelectedLines( S32 spaces ) { if( hasSelection() ) { LLWString text = getWText(); S32 left = llmin( mSelectionStart, mSelectionEnd ); S32 right = left + llabs( mSelectionStart - mSelectionEnd ); BOOL cursor_on_right = (mSelectionEnd > mSelectionStart); S32 cur = left; // Expand left to start of line while( (cur > 0) && (text[cur] != '\n') ) { cur--; } left = cur; if( cur > 0 ) { left++; } // Expand right to end of line if( text[right - 1] == '\n' ) { right--; } else { while( (text[right] != '\n') && (right <= getLength() ) ) { right++; } } // Find each start-of-line and indent it do { if( text[cur] == '\n' ) { cur++; } S32 delta_spaces = indentLine( cur, spaces ); if( delta_spaces > 0 ) { cur += delta_spaces; } right += delta_spaces; text = getWText(); // Find the next new line while( (cur < right) && (text[cur] != '\n') ) { cur++; } } while( cur < right ); if( (right < getLength()) && (text[right] == '\n') ) { right++; } // Set the selection and cursor if( cursor_on_right ) { mSelectionStart = left; mSelectionEnd = right; } else { mSelectionStart = right; mSelectionEnd = left; } setCursorPos(mSelectionEnd); } } //virtual BOOL LLTextEditor::canSelectAll() const { return TRUE; } // virtual void LLTextEditor::selectAll() { mSelectionStart = getLength(); mSelectionEnd = 0; setCursorPos(mSelectionEnd); updatePrimary(); } BOOL LLTextEditor::handleMouseDown(S32 x, S32 y, MASK mask) { BOOL handled = FALSE; // set focus first, in case click callbacks want to change it // RN: do we really need to have a tab stop? if (hasTabStop()) { setFocus( TRUE ); } // Let scrollbar have first dibs handled = LLTextBase::handleMouseDown(x, y, mask); if( !handled ) { if (!(mask & MASK_SHIFT)) { deselect(); } BOOL start_select = TRUE; if( start_select ) { // If we're not scrolling (handled by child), then we're selecting if (mask & MASK_SHIFT) { S32 old_cursor_pos = mCursorPos; setCursorAtLocalPos( x, y, true ); if (hasSelection()) { mSelectionEnd = mCursorPos; } else { mSelectionStart = old_cursor_pos; mSelectionEnd = mCursorPos; } // assume we're starting a drag select mIsSelecting = TRUE; } else { setCursorAtLocalPos( x, y, true ); startSelection(); } gFocusMgr.setMouseCapture( this ); } handled = TRUE; } // Delay cursor flashing resetCursorBlink(); return handled; } BOOL LLTextEditor::handleRightMouseDown(S32 x, S32 y, MASK mask) { if (hasTabStop()) { setFocus(TRUE); } // Prefer editor menu if it has selection. See EXT-6806. if (hasSelection() || !LLTextBase::handleRightMouseDown(x, y, mask)) { if(getShowContextMenu()) { showContextMenu(x, y); } } return TRUE; } BOOL LLTextEditor::handleMiddleMouseDown(S32 x, S32 y, MASK mask) { if (hasTabStop()) { setFocus(TRUE); } if (!LLTextBase::handleMouseDown(x, y, mask)) { if( canPastePrimary() ) { setCursorAtLocalPos( x, y, true ); // does not rely on focus being set pastePrimary(); } } return TRUE; } BOOL LLTextEditor::handleHover(S32 x, S32 y, MASK mask) { BOOL handled = FALSE; if(hasMouseCapture() ) { if( mIsSelecting ) { if(mScroller) { mScroller->autoScroll(x, y); } S32 clamped_x = llclamp(x, mVisibleTextRect.mLeft, mVisibleTextRect.mRight); S32 clamped_y = llclamp(y, mVisibleTextRect.mBottom, mVisibleTextRect.mTop); setCursorAtLocalPos( clamped_x, clamped_y, true ); mSelectionEnd = mCursorPos; } lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (active)" << llendl; getWindow()->setCursor(UI_CURSOR_IBEAM); handled = TRUE; } if( !handled ) { // Pass to children handled = LLTextBase::handleHover(x, y, mask); } if( handled ) { // Delay cursor flashing resetCursorBlink(); } if( !handled ) { getWindow()->setCursor(UI_CURSOR_IBEAM); handled = TRUE; } return handled; } BOOL LLTextEditor::handleMouseUp(S32 x, S32 y, MASK mask) { BOOL handled = FALSE; // if I'm not currently selecting text if (!(hasSelection() && hasMouseCapture())) { // let text segments handle mouse event handled = LLTextBase::handleMouseUp(x, y, mask); } if( !handled ) { if( mIsSelecting ) { if(mScroller) { mScroller->autoScroll(x, y); } S32 clamped_x = llclamp(x, mVisibleTextRect.mLeft, mVisibleTextRect.mRight); S32 clamped_y = llclamp(y, mVisibleTextRect.mBottom, mVisibleTextRect.mTop); setCursorAtLocalPos( clamped_x, clamped_y, true ); endSelection(); } // take selection to 'primary' clipboard updatePrimary(); handled = TRUE; } // Delay cursor flashing resetCursorBlink(); if( hasMouseCapture() ) { gFocusMgr.setMouseCapture( NULL ); handled = TRUE; } return handled; } BOOL LLTextEditor::handleDoubleClick(S32 x, S32 y, MASK mask) { BOOL handled = FALSE; // let scrollbar and text segments have first dibs handled = LLTextBase::handleDoubleClick(x, y, mask); if( !handled ) { setCursorAtLocalPos( x, y, false ); deselect(); LLWString text = getWText(); if( LLWStringUtil::isPartOfWord( text[mCursorPos] ) ) { // Select word the cursor is over while ((mCursorPos > 0) && LLWStringUtil::isPartOfWord(text[mCursorPos-1])) { if (!setCursorPos(mCursorPos - 1)) break; } startSelection(); while ((mCursorPos < (S32)text.length()) && LLWStringUtil::isPartOfWord( text[mCursorPos] ) ) { if (!setCursorPos(mCursorPos + 1)) break; } mSelectionEnd = mCursorPos; } else if ((mCursorPos < (S32)text.length()) && !iswspace( text[mCursorPos]) ) { // Select the character the cursor is over startSelection(); setCursorPos(mCursorPos + 1); mSelectionEnd = mCursorPos; } // We don't want handleMouseUp() to "finish" the selection (and thereby // set mSelectionEnd to where the mouse is), so we finish the selection here. mIsSelecting = FALSE; // delay cursor flashing resetCursorBlink(); // take selection to 'primary' clipboard updatePrimary(); handled = TRUE; } return handled; } //---------------------------------------------------------------------------- // Returns change in number of characters in mText S32 LLTextEditor::execute( TextCmd* cmd ) { S32 delta = 0; if( cmd->execute(this, &delta) ) { // Delete top of undo stack undo_stack_t::iterator enditer = std::find(mUndoStack.begin(), mUndoStack.end(), mLastCmd); std::for_each(mUndoStack.begin(), enditer, DeletePointer()); mUndoStack.erase(mUndoStack.begin(), enditer); // Push the new command is now on the top (front) of the undo stack. mUndoStack.push_front(cmd); mLastCmd = cmd; bool need_to_rollback = mPrevalidateFunc && !mPrevalidateFunc(getViewModel()->getDisplay()); if (need_to_rollback) { // get rid of this last command and clean up undo stack undo(); // remove any evidence of this command from redo history mUndoStack.pop_front(); delete cmd; // failure, nothing changed delta = 0; } } else { // Operation failed, so don't put it on the undo stack. delete cmd; } return delta; } S32 LLTextEditor::insert(S32 pos, const LLWString &wstr, bool group_with_next_op, LLTextSegmentPtr segment) { return execute( new TextCmdInsert( pos, group_with_next_op, wstr, segment ) ); } S32 LLTextEditor::remove(S32 pos, S32 length, bool group_with_next_op) { S32 end_pos = getEditableIndex(pos + length, true); segment_vec_t segments_to_remove; // store text segments getSegmentsInRange(segments_to_remove, pos, pos + length, false); return execute( new TextCmdRemove( pos, group_with_next_op, end_pos - pos, segments_to_remove ) ); } S32 LLTextEditor::overwriteChar(S32 pos, llwchar wc) { if ((S32)getLength() == pos) { return addChar(pos, wc); } else { return execute(new TextCmdOverwriteChar(pos, FALSE, wc)); } } // Remove a single character from the text. Tries to remove // a pseudo-tab (up to for spaces in a row) void LLTextEditor::removeCharOrTab() { if( !getEnabled() ) { return; } if( mCursorPos > 0 ) { S32 chars_to_remove = 1; LLWString text = getWText(); if (text[mCursorPos - 1] == ' ') { // Try to remove a "tab" S32 offset = getLineOffsetFromDocIndex(mCursorPos); if (offset > 0) { chars_to_remove = offset % SPACES_PER_TAB; if( chars_to_remove == 0 ) { chars_to_remove = SPACES_PER_TAB; } for( S32 i = 0; i < chars_to_remove; i++ ) { if (text[ mCursorPos - i - 1] != ' ') { // Fewer than a full tab's worth of spaces, so // just delete a single character. chars_to_remove = 1; break; } } } } for (S32 i = 0; i < chars_to_remove; i++) { setCursorPos(mCursorPos - 1); remove( mCursorPos, 1, FALSE ); } } else { LLUI::reportBadKeystroke(); } } // Remove a single character from the text S32 LLTextEditor::removeChar(S32 pos) { return remove( pos, 1, FALSE ); } void LLTextEditor::removeChar() { if (!getEnabled()) { return; } if (mCursorPos > 0) { setCursorPos(mCursorPos - 1); removeChar(mCursorPos); } else { LLUI::reportBadKeystroke(); } } // Add a single character to the text S32 LLTextEditor::addChar(S32 pos, llwchar wc) { if ( (wstring_utf8_length( getWText() ) + wchar_utf8_length( wc )) > mMaxTextByteLength) { make_ui_sound("UISndBadKeystroke"); return 0; } if (mLastCmd && mLastCmd->canExtend(pos)) { S32 delta = 0; if (mPrevalidateFunc) { // get a copy of current text contents LLWString test_string(getViewModel()->getDisplay()); // modify text contents as if this addChar succeeded llassert(pos <= (S32)test_string.size()); test_string.insert(pos, 1, wc); if (!mPrevalidateFunc( test_string)) { return 0; } } mLastCmd->extendAndExecute(this, pos, wc, &delta); return delta; } else { return execute(new TextCmdAddChar(pos, FALSE, wc, LLTextSegmentPtr())); } } void LLTextEditor::addChar(llwchar wc) { if( !getEnabled() ) { return; } if( hasSelection() ) { deleteSelection(TRUE); } else if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode()) { removeChar(mCursorPos); } setCursorPos(mCursorPos + addChar( mCursorPos, wc )); } void LLTextEditor::addLineBreakChar() { if( !getEnabled() ) { return; } if( hasSelection() ) { deleteSelection(TRUE); } else if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode()) { removeChar(mCursorPos); } LLStyleConstSP sp(new LLStyle(LLStyle::Params())); LLTextSegmentPtr segment = new LLLineBreakTextSegment(sp, mCursorPos); S32 pos = execute(new TextCmdAddChar(mCursorPos, FALSE, '\n', segment)); setCursorPos(mCursorPos + pos); } BOOL LLTextEditor::handleSelectionKey(const KEY key, const MASK mask) { BOOL handled = FALSE; if( mask & MASK_SHIFT ) { handled = TRUE; switch( key ) { case KEY_LEFT: if( 0 < mCursorPos ) { startSelection(); setCursorPos(mCursorPos - 1); if( mask & MASK_CONTROL ) { setCursorPos(prevWordPos(mCursorPos)); } mSelectionEnd = mCursorPos; } break; case KEY_RIGHT: if( mCursorPos < getLength() ) { startSelection(); setCursorPos(mCursorPos + 1); if( mask & MASK_CONTROL ) { setCursorPos(nextWordPos(mCursorPos)); } mSelectionEnd = mCursorPos; } break; case KEY_UP: startSelection(); changeLine( -1 ); mSelectionEnd = mCursorPos; break; case KEY_PAGE_UP: startSelection(); changePage( -1 ); mSelectionEnd = mCursorPos; break; case KEY_HOME: startSelection(); if( mask & MASK_CONTROL ) { setCursorPos(0); } else { startOfLine(); } mSelectionEnd = mCursorPos; break; case KEY_DOWN: startSelection(); changeLine( 1 ); mSelectionEnd = mCursorPos; break; case KEY_PAGE_DOWN: startSelection(); changePage( 1 ); mSelectionEnd = mCursorPos; break; case KEY_END: startSelection(); if( mask & MASK_CONTROL ) { setCursorPos(getLength()); } else { endOfLine(); } mSelectionEnd = mCursorPos; break; default: handled = FALSE; break; } } if( handled ) { // take selection to 'primary' clipboard updatePrimary(); } return handled; } BOOL LLTextEditor::handleNavigationKey(const KEY key, const MASK mask) { BOOL handled = FALSE; // Ignore capslock key if( MASK_NONE == mask ) { handled = TRUE; switch( key ) { case KEY_UP: changeLine( -1 ); break; case KEY_PAGE_UP: changePage( -1 ); break; case KEY_HOME: startOfLine(); break; case KEY_DOWN: changeLine( 1 ); deselect(); break; case KEY_PAGE_DOWN: changePage( 1 ); break; case KEY_END: endOfLine(); break; case KEY_LEFT: if( hasSelection() ) { setCursorPos(llmin( mSelectionStart, mSelectionEnd )); } else { if( 0 < mCursorPos ) { setCursorPos(mCursorPos - 1); } else { LLUI::reportBadKeystroke(); } } break; case KEY_RIGHT: if( hasSelection() ) { setCursorPos(llmax( mSelectionStart, mSelectionEnd )); } else { if( mCursorPos < getLength() ) { setCursorPos(mCursorPos + 1); } else { LLUI::reportBadKeystroke(); } } break; default: handled = FALSE; break; } } if (handled) { deselect(); } return handled; } void LLTextEditor::deleteSelection(BOOL group_with_next_op ) { if( getEnabled() && hasSelection() ) { S32 pos = llmin( mSelectionStart, mSelectionEnd ); S32 length = llabs( mSelectionStart - mSelectionEnd ); remove( pos, length, group_with_next_op ); deselect(); setCursorPos(pos); } } // virtual BOOL LLTextEditor::canCut() const { return !mReadOnly && hasSelection(); } // cut selection to clipboard void LLTextEditor::cut() { if( !canCut() ) { return; } S32 left_pos = llmin( mSelectionStart, mSelectionEnd ); S32 length = llabs( mSelectionStart - mSelectionEnd ); gClipboard.copyFromSubstring( getWText(), left_pos, length, mSourceID ); deleteSelection( FALSE ); onKeyStroke(); } BOOL LLTextEditor::canCopy() const { return hasSelection(); } // copy selection to clipboard void LLTextEditor::copy() { if( !canCopy() ) { return; } S32 left_pos = llmin( mSelectionStart, mSelectionEnd ); S32 length = llabs( mSelectionStart - mSelectionEnd ); gClipboard.copyFromSubstring(getWText(), left_pos, length, mSourceID); } BOOL LLTextEditor::canPaste() const { return !mReadOnly && gClipboard.canPasteString(); } // paste from clipboard void LLTextEditor::paste() { bool is_primary = false; pasteHelper(is_primary); } // paste from primary void LLTextEditor::pastePrimary() { bool is_primary = true; pasteHelper(is_primary); } // paste from primary (itsprimary==true) or clipboard (itsprimary==false) void LLTextEditor::pasteHelper(bool is_primary) { mParseOnTheFly = FALSE; bool can_paste_it; if (is_primary) { can_paste_it = canPastePrimary(); } else { can_paste_it = canPaste(); } if (!can_paste_it) { return; } LLUUID source_id; LLWString paste; if (is_primary) { paste = gClipboard.getPastePrimaryWString(&source_id); } else { paste = gClipboard.getPasteWString(&source_id); } if (paste.empty()) { return; } // Delete any selected characters (the paste replaces them) if( (!is_primary) && hasSelection() ) { deleteSelection(TRUE); } // Clean up string (replace tabs and remove characters that our fonts don't support). LLWString clean_string(paste); LLWStringUtil::replaceTabsWithSpaces(clean_string, SPACES_PER_TAB); if( mAllowEmbeddedItems ) { const llwchar LF = 10; S32 len = clean_string.length(); for( S32 i = 0; i < len; i++ ) { llwchar wc = clean_string[i]; if( (wc < LLFontFreetype::FIRST_CHAR) && (wc != LF) ) { clean_string[i] = LL_UNKNOWN_CHAR; } else if (wc >= FIRST_EMBEDDED_CHAR && wc <= LAST_EMBEDDED_CHAR) { clean_string[i] = pasteEmbeddedItem(wc); } } } // Insert the new text into the existing text. //paste text with linebreaks. std::basic_string<llwchar>::size_type start = 0; std::basic_string<llwchar>::size_type pos = clean_string.find('\n',start); while(pos!=-1) { if(pos!=start) { std::basic_string<llwchar> str = std::basic_string<llwchar>(clean_string,start,pos-start); setCursorPos(mCursorPos + insert(mCursorPos, str, FALSE, LLTextSegmentPtr())); } addLineBreakChar(); start = pos+1; pos = clean_string.find('\n',start); } std::basic_string<llwchar> str = std::basic_string<llwchar>(clean_string,start,clean_string.length()-start); setCursorPos(mCursorPos + insert(mCursorPos, str, FALSE, LLTextSegmentPtr())); deselect(); onKeyStroke(); mParseOnTheFly = TRUE; } // copy selection to primary void LLTextEditor::copyPrimary() { if( !canCopy() ) { return; } S32 left_pos = llmin( mSelectionStart, mSelectionEnd ); S32 length = llabs( mSelectionStart - mSelectionEnd ); gClipboard.copyFromPrimarySubstring(getWText(), left_pos, length, mSourceID); } BOOL LLTextEditor::canPastePrimary() const { return !mReadOnly && gClipboard.canPastePrimaryString(); } void LLTextEditor::updatePrimary() { if (canCopy()) { copyPrimary(); } } BOOL LLTextEditor::handleControlKey(const KEY key, const MASK mask) { BOOL handled = FALSE; if( mask & MASK_CONTROL ) { handled = TRUE; switch( key ) { case KEY_HOME: if( mask & MASK_SHIFT ) { startSelection(); setCursorPos(0); mSelectionEnd = mCursorPos; } else { // Ctrl-Home, Ctrl-Left, Ctrl-Right, Ctrl-Down // all move the cursor as if clicking, so should deselect. deselect(); startOfDoc(); } break; case KEY_END: { if( mask & MASK_SHIFT ) { startSelection(); } else { // Ctrl-Home, Ctrl-Left, Ctrl-Right, Ctrl-Down // all move the cursor as if clicking, so should deselect. deselect(); } endOfDoc(); if( mask & MASK_SHIFT ) { mSelectionEnd = mCursorPos; } break; } case KEY_RIGHT: if( mCursorPos < getLength() ) { // Ctrl-Home, Ctrl-Left, Ctrl-Right, Ctrl-Down // all move the cursor as if clicking, so should deselect. deselect(); setCursorPos(nextWordPos(mCursorPos + 1)); } break; case KEY_LEFT: if( mCursorPos > 0 ) { // Ctrl-Home, Ctrl-Left, Ctrl-Right, Ctrl-Down // all move the cursor as if clicking, so should deselect. deselect(); setCursorPos(prevWordPos(mCursorPos - 1)); } break; default: handled = FALSE; break; } } if (handled) { updatePrimary(); } return handled; } BOOL LLTextEditor::handleSpecialKey(const KEY key, const MASK mask) { BOOL handled = TRUE; if (mReadOnly) return FALSE; switch( key ) { case KEY_INSERT: if (mask == MASK_NONE) { gKeyboard->toggleInsertMode(); } break; case KEY_BACKSPACE: if( hasSelection() ) { deleteSelection(FALSE); } else if( 0 < mCursorPos ) { removeCharOrTab(); } else { LLUI::reportBadKeystroke(); } break; case KEY_RETURN: if (mask == MASK_NONE) { if( hasSelection() ) { deleteSelection(FALSE); } autoIndent(); // TODO: make this optional } else { handled = FALSE; break; } break; case KEY_TAB: if (mask & MASK_CONTROL) { handled = FALSE; break; } if( hasSelection() && selectionContainsLineBreaks() ) { indentSelectedLines( (mask & MASK_SHIFT) ? -SPACES_PER_TAB : SPACES_PER_TAB ); } else { if( hasSelection() ) { deleteSelection(FALSE); } S32 offset = getLineOffsetFromDocIndex(mCursorPos); S32 spaces_needed = SPACES_PER_TAB - (offset % SPACES_PER_TAB); for( S32 i=0; i < spaces_needed; i++ ) { addChar( ' ' ); } } break; default: handled = FALSE; break; } if (handled) { onKeyStroke(); } return handled; } void LLTextEditor::unindentLineBeforeCloseBrace() { if( mCursorPos >= 1 ) { LLWString text = getWText(); if( ' ' == text[ mCursorPos - 1 ] ) { removeCharOrTab(); } } } BOOL LLTextEditor::handleKeyHere(KEY key, MASK mask ) { BOOL handled = FALSE; // Special case for TAB. If want to move to next field, report // not handled and let the parent take care of field movement. if (KEY_TAB == key && mTabsToNextField) { return FALSE; } if (mReadOnly && mScroller) { handled = (mScroller && mScroller->handleKeyHere( key, mask )) || handleSelectionKey(key, mask) || handleControlKey(key, mask); } else { handled = handleNavigationKey( key, mask ) || handleSelectionKey(key, mask) || handleControlKey(key, mask) || handleSpecialKey(key, mask); } if( handled ) { resetCursorBlink(); needsScroll(); } return handled; } BOOL LLTextEditor::handleUnicodeCharHere(llwchar uni_char) { if ((uni_char < 0x20) || (uni_char == 0x7F)) // Control character or DEL { return FALSE; } BOOL handled = FALSE; // Handle most keys only if the text editor is writeable. if( !mReadOnly ) { if( '}' == uni_char ) { unindentLineBeforeCloseBrace(); } // TODO: KLW Add auto show of tool tip on ( addChar( uni_char ); // Keys that add characters temporarily hide the cursor getWindow()->hideCursorUntilMouseMove(); handled = TRUE; } if( handled ) { resetCursorBlink(); // Most keystrokes will make the selection box go away, but not all will. deselect(); onKeyStroke(); } return handled; } // virtual BOOL LLTextEditor::canDoDelete() const { return !mReadOnly && ( hasSelection() || (mCursorPos < getLength()) ); } void LLTextEditor::doDelete() { if( !canDoDelete() ) { return; } if( hasSelection() ) { deleteSelection(FALSE); } else if( mCursorPos < getLength() ) { S32 i; S32 chars_to_remove = 1; LLWString text = getWText(); if( (text[ mCursorPos ] == ' ') && (mCursorPos + SPACES_PER_TAB < getLength()) ) { // Try to remove a full tab's worth of spaces S32 offset = getLineOffsetFromDocIndex(mCursorPos); chars_to_remove = SPACES_PER_TAB - (offset % SPACES_PER_TAB); if( chars_to_remove == 0 ) { chars_to_remove = SPACES_PER_TAB; } for( i = 0; i < chars_to_remove; i++ ) { if( text[mCursorPos + i] != ' ' ) { chars_to_remove = 1; break; } } } for( i = 0; i < chars_to_remove; i++ ) { setCursorPos(mCursorPos + 1); removeChar(); } } onKeyStroke(); } //---------------------------------------------------------------------------- void LLTextEditor::blockUndo() { mBaseDocIsPristine = FALSE; mLastCmd = NULL; std::for_each(mUndoStack.begin(), mUndoStack.end(), DeletePointer()); mUndoStack.clear(); } // virtual BOOL LLTextEditor::canUndo() const { return !mReadOnly && mLastCmd != NULL; } void LLTextEditor::undo() { if( !canUndo() ) { return; } deselect(); S32 pos = 0; do { pos = mLastCmd->undo(this); undo_stack_t::iterator iter = std::find(mUndoStack.begin(), mUndoStack.end(), mLastCmd); if (iter != mUndoStack.end()) ++iter; if (iter != mUndoStack.end()) mLastCmd = *iter; else mLastCmd = NULL; } while( mLastCmd && mLastCmd->groupWithNext() ); setCursorPos(pos); onKeyStroke(); } BOOL LLTextEditor::canRedo() const { return !mReadOnly && (mUndoStack.size() > 0) && (mLastCmd != mUndoStack.front()); } void LLTextEditor::redo() { if( !canRedo() ) { return; } deselect(); S32 pos = 0; do { if( !mLastCmd ) { mLastCmd = mUndoStack.back(); } else { undo_stack_t::iterator iter = std::find(mUndoStack.begin(), mUndoStack.end(), mLastCmd); if (iter != mUndoStack.begin()) mLastCmd = *(--iter); else mLastCmd = NULL; } if( mLastCmd ) { pos = mLastCmd->redo(this); } } while( mLastCmd && mLastCmd->groupWithNext() && (mLastCmd != mUndoStack.front()) ); setCursorPos(pos); onKeyStroke(); } void LLTextEditor::onFocusReceived() { LLTextBase::onFocusReceived(); updateAllowingLanguageInput(); } // virtual, from LLView void LLTextEditor::onFocusLost() { updateAllowingLanguageInput(); // Route menu back to the default if( gEditMenuHandler == this ) { gEditMenuHandler = NULL; } if (mCommitOnFocusLost) { onCommit(); } // Make sure cursor is shown again getWindow()->showCursorFromMouseMove(); LLTextBase::onFocusLost(); } void LLTextEditor::onCommit() { setControlValue(getValue()); LLTextBase::onCommit(); } void LLTextEditor::setEnabled(BOOL enabled) { // just treat enabled as read-only flag bool read_only = !enabled; if (read_only != mReadOnly) { //mReadOnly = read_only; LLTextBase::setReadOnly(read_only); updateSegments(); updateAllowingLanguageInput(); } } void LLTextEditor::showContextMenu(S32 x, S32 y) { if (!mContextMenu) { mContextMenu = LLUICtrlFactory::instance().createFromFile<LLContextMenu>("menu_text_editor.xml", LLMenuGL::sMenuContainer, LLMenuHolderGL::child_registry_t::instance()); } // Route menu to this class // previously this was done in ::handleRightMoseDown: //if(hasTabStop()) // setFocus(TRUE) - why? weird... // and then inside setFocus // .... // gEditMenuHandler = this; // .... // but this didn't work in all cases and just weird... //why not here? // (all this was done for EXT-4443) gEditMenuHandler = this; S32 screen_x, screen_y; localPointToScreen(x, y, &screen_x, &screen_y); mContextMenu->show(screen_x, screen_y); } void LLTextEditor::drawPreeditMarker() { static LLUICachedControl<F32> preedit_marker_brightness ("UIPreeditMarkerBrightness", 0); static LLUICachedControl<S32> preedit_marker_gap ("UIPreeditMarkerGap", 0); static LLUICachedControl<S32> preedit_marker_position ("UIPreeditMarkerPosition", 0); static LLUICachedControl<S32> preedit_marker_thickness ("UIPreeditMarkerThickness", 0); static LLUICachedControl<F32> preedit_standout_brightness ("UIPreeditStandoutBrightness", 0); static LLUICachedControl<S32> preedit_standout_gap ("UIPreeditStandoutGap", 0); static LLUICachedControl<S32> preedit_standout_position ("UIPreeditStandoutPosition", 0); static LLUICachedControl<S32> preedit_standout_thickness ("UIPreeditStandoutThickness", 0); if (!hasPreeditString()) { return; } const LLWString textString(getWText()); const llwchar *text = textString.c_str(); const S32 text_len = getLength(); const S32 num_lines = getLineCount(); S32 cur_line = getFirstVisibleLine(); if (cur_line >= num_lines) { return; } const S32 line_height = llround( mDefaultFont->getLineHeight() ); S32 line_start = getLineStart(cur_line); S32 line_y = mVisibleTextRect.mTop - line_height; while((mVisibleTextRect.mBottom <= line_y) && (num_lines > cur_line)) { S32 next_start = -1; S32 line_end = text_len; if ((cur_line + 1) < num_lines) { next_start = getLineStart(cur_line + 1); line_end = next_start; } if ( text[line_end-1] == '\n' ) { --line_end; } // Does this line contain preedits? if (line_start >= mPreeditPositions.back()) { // We have passed the preedits. break; } if (line_end > mPreeditPositions.front()) { for (U32 i = 0; i < mPreeditStandouts.size(); i++) { S32 left = mPreeditPositions[i]; S32 right = mPreeditPositions[i + 1]; if (right <= line_start || left >= line_end) { continue; } S32 preedit_left = mVisibleTextRect.mLeft; if (left > line_start) { preedit_left += mDefaultFont->getWidth(text, line_start, left - line_start); } S32 preedit_right = mVisibleTextRect.mLeft; if (right < line_end) { preedit_right += mDefaultFont->getWidth(text, line_start, right - line_start); } else { preedit_right += mDefaultFont->getWidth(text, line_start, line_end - line_start); } if (mPreeditStandouts[i]) { gl_rect_2d(preedit_left + preedit_standout_gap, line_y + preedit_standout_position, preedit_right - preedit_standout_gap - 1, line_y + preedit_standout_position - preedit_standout_thickness, (mCursorColor.get() * preedit_standout_brightness + mWriteableBgColor.get() * (1 - preedit_standout_brightness)).setAlpha(1.0f)); } else { gl_rect_2d(preedit_left + preedit_marker_gap, line_y + preedit_marker_position, preedit_right - preedit_marker_gap - 1, line_y + preedit_marker_position - preedit_marker_thickness, (mCursorColor.get() * preedit_marker_brightness + mWriteableBgColor.get() * (1 - preedit_marker_brightness)).setAlpha(1.0f)); } } } // move down one line line_y -= line_height; line_start = next_start; cur_line++; } } void LLTextEditor::drawLineNumbers() { LLGLSUIDefault gls_ui; LLRect scrolled_view_rect = getVisibleDocumentRect(); LLRect content_rect = getVisibleTextRect(); LLLocalClipRect clip(content_rect); S32 first_line = getFirstVisibleLine(); S32 num_lines = getLineCount(); if (first_line >= num_lines) { return; } S32 cursor_line = mLineInfoList[getLineNumFromDocIndex(mCursorPos)].mLineNum; if (mShowLineNumbers) { S32 left = 0; S32 top = getRect().getHeight(); S32 bottom = 0; gl_rect_2d(left, top, UI_TEXTEDITOR_LINE_NUMBER_MARGIN, bottom, mReadOnlyBgColor.get() ); // line number area always read-only gl_rect_2d(UI_TEXTEDITOR_LINE_NUMBER_MARGIN, top, UI_TEXTEDITOR_LINE_NUMBER_MARGIN-1, bottom, LLColor4::grey3); // separator S32 last_line_num = -1; for (S32 cur_line = first_line; cur_line < num_lines; cur_line++) { line_info& line = mLineInfoList[cur_line]; if ((line.mRect.mTop - scrolled_view_rect.mBottom) < mVisibleTextRect.mBottom) { break; } S32 line_bottom = line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom; // draw the line numbers if(line.mLineNum != last_line_num && line.mRect.mTop <= scrolled_view_rect.mTop) { const LLFontGL *num_font = LLFontGL::getFontMonospace(); const LLWString ltext = utf8str_to_wstring(llformat("%d", line.mLineNum )); BOOL is_cur_line = cursor_line == line.mLineNum; const U8 style = is_cur_line ? LLFontGL::BOLD : LLFontGL::NORMAL; const LLColor4 fg_color = is_cur_line ? mCursorColor : mReadOnlyFgColor; num_font->render( ltext, // string to draw 0, // begin offset UI_TEXTEDITOR_LINE_NUMBER_MARGIN - 2, // x line_bottom, // y fg_color, LLFontGL::RIGHT, // horizontal alignment LLFontGL::BOTTOM, // vertical alignment style, LLFontGL::NO_SHADOW, S32_MAX, // max chars UI_TEXTEDITOR_LINE_NUMBER_MARGIN - 2); // max pixels last_line_num = line.mLineNum; } } } } void LLTextEditor::draw() { { // pad clipping rectangle so that cursor can draw at full width // when at left edge of mVisibleTextRect LLRect clip_rect(mVisibleTextRect); clip_rect.stretch(1); LLLocalClipRect clip(clip_rect); drawPreeditMarker(); } LLTextBase::draw(); drawLineNumbers(); //RN: the decision was made to always show the orange border for keyboard focus but do not put an insertion caret // when in readonly mode mBorder->setKeyboardFocusHighlight( hasFocus() );// && !mReadOnly); } // Start or stop the editor from accepting text-editing keystrokes // see also LLLineEditor void LLTextEditor::setFocus( BOOL new_state ) { BOOL old_state = hasFocus(); // Don't change anything if the focus state didn't change if (new_state == old_state) return; // Notify early if we are losing focus. if (!new_state) { getWindow()->allowLanguageTextInput(this, FALSE); } LLTextBase::setFocus( new_state ); if( new_state ) { // Route menu to this class gEditMenuHandler = this; // Don't start the cursor flashing right away resetCursorBlink(); } else { // Route menu back to the default if( gEditMenuHandler == this ) { gEditMenuHandler = NULL; } endSelection(); } } // public void LLTextEditor::setCursorAndScrollToEnd() { deselect(); endOfDoc(); } void LLTextEditor::getCurrentLineAndColumn( S32* line, S32* col, BOOL include_wordwrap ) { *line = getLineNumFromDocIndex(mCursorPos, include_wordwrap); *col = getLineOffsetFromDocIndex(mCursorPos, include_wordwrap); } void LLTextEditor::autoIndent() { // Count the number of spaces in the current line S32 line = getLineNumFromDocIndex(mCursorPos, false); S32 line_start = getLineStart(line); S32 space_count = 0; S32 i; LLWString text = getWText(); while( ' ' == text[line_start] ) { space_count++; line_start++; } // If we're starting a braced section, indent one level. if( (mCursorPos > 0) && (text[mCursorPos -1] == '{') ) { space_count += SPACES_PER_TAB; } // Insert that number of spaces on the new line //appendLineBreakSegment(LLStyle::Params());//addChar( '\n' ); addLineBreakChar(); for( i = 0; i < space_count; i++ ) { addChar( ' ' ); } } // Inserts new text at the cursor position void LLTextEditor::insertText(const std::string &new_text) { BOOL enabled = getEnabled(); setEnabled( TRUE ); // Delete any selected characters (the insertion replaces them) if( hasSelection() ) { deleteSelection(TRUE); } setCursorPos(mCursorPos + insert( mCursorPos, utf8str_to_wstring(new_text), FALSE, LLTextSegmentPtr() )); setEnabled( enabled ); } void LLTextEditor::appendWidget(const LLInlineViewSegment::Params& params, const std::string& text, bool allow_undo) { // Save old state S32 selection_start = mSelectionStart; S32 selection_end = mSelectionEnd; BOOL was_selecting = mIsSelecting; S32 cursor_pos = mCursorPos; S32 old_length = getLength(); BOOL cursor_was_at_end = (mCursorPos == old_length); deselect(); setCursorPos(old_length); LLWString widget_wide_text = utf8str_to_wstring(text); LLTextSegmentPtr segment = new LLInlineViewSegment(params, old_length, old_length + widget_wide_text.size()); insert(getLength(), widget_wide_text, FALSE, segment); // Set the cursor and scroll position if( selection_start != selection_end ) { mSelectionStart = selection_start; mSelectionEnd = selection_end; mIsSelecting = was_selecting; setCursorPos(cursor_pos); } else if( cursor_was_at_end ) { setCursorPos(getLength()); } else { setCursorPos(cursor_pos); } if (!allow_undo) { blockUndo(); } } void LLTextEditor::removeTextFromEnd(S32 num_chars) { if (num_chars <= 0) return; remove(getLength() - num_chars, num_chars, FALSE); S32 len = getLength(); setCursorPos (llclamp(mCursorPos, 0, len)); mSelectionStart = llclamp(mSelectionStart, 0, len); mSelectionEnd = llclamp(mSelectionEnd, 0, len); needsScroll(); } //---------------------------------------------------------------------------- void LLTextEditor::makePristine() { mPristineCmd = mLastCmd; mBaseDocIsPristine = !mLastCmd; // Create a clean partition in the undo stack. We don't want a single command to extend from // the "pre-pristine" state to the "post-pristine" state. if( mLastCmd ) { mLastCmd->blockExtensions(); } } BOOL LLTextEditor::isPristine() const { if( mPristineCmd ) { return (mPristineCmd == mLastCmd); } else { // No undo stack, so check if the version before and commands were done was the original version return !mLastCmd && mBaseDocIsPristine; } } BOOL LLTextEditor::tryToRevertToPristineState() { if( !isPristine() ) { deselect(); S32 i = 0; while( !isPristine() && canUndo() ) { undo(); i--; } while( !isPristine() && canRedo() ) { redo(); i++; } if( !isPristine() ) { // failed, so go back to where we started while( i > 0 ) { undo(); i--; } } } return isPristine(); // TRUE => success } static LLFastTimer::DeclareTimer FTM_SYNTAX_HIGHLIGHTING("Syntax Highlighting"); void LLTextEditor::loadKeywords(const std::string& filename, const std::vector<std::string>& funcs, const std::vector<std::string>& tooltips, const LLColor3& color) { LLFastTimer ft(FTM_SYNTAX_HIGHLIGHTING); if(mKeywords.loadFromFile(filename)) { S32 count = llmin(funcs.size(), tooltips.size()); for(S32 i = 0; i < count; i++) { std::string name = utf8str_trim(funcs[i]); mKeywords.addToken(LLKeywordToken::WORD, name, color, tooltips[i] ); } segment_vec_t segment_list; mKeywords.findSegments(&segment_list, getWText(), mDefaultColor.get(), *this); mSegments.clear(); segment_set_t::iterator insert_it = mSegments.begin(); for (segment_vec_t::iterator list_it = segment_list.begin(); list_it != segment_list.end(); ++list_it) { insert_it = mSegments.insert(insert_it, *list_it); } } } void LLTextEditor::updateSegments() { if (mReflowIndex < S32_MAX && mKeywords.isLoaded() && mParseOnTheFly) { LLFastTimer ft(FTM_SYNTAX_HIGHLIGHTING); // HACK: No non-ascii keywords for now segment_vec_t segment_list; mKeywords.findSegments(&segment_list, getWText(), mDefaultColor.get(), *this); clearSegments(); segment_set_t::iterator insert_it = mSegments.begin(); for (segment_vec_t::iterator list_it = segment_list.begin(); list_it != segment_list.end(); ++list_it) { insertSegment(*list_it); } } LLTextBase::updateSegments(); } void LLTextEditor::updateLinkSegments() { LLWString wtext = getWText(); // update any segments that contain a link for (segment_set_t::iterator it = mSegments.begin(); it != mSegments.end(); ++it) { LLTextSegment *segment = *it; if (segment && segment->getStyle() && segment->getStyle()->isLink()) { // if the link's label (what the user can edit) is a valid Url, // then update the link's HREF to be the same as the label text. // This lets users edit Urls in-place. LLStyleConstSP style = segment->getStyle(); LLStyleSP new_style(new LLStyle(*style)); LLWString url_label = wtext.substr(segment->getStart(), segment->getEnd()-segment->getStart()); if (LLUrlRegistry::instance().hasUrl(url_label)) { std::string new_url = wstring_to_utf8str(url_label); LLStringUtil::trim(new_url); new_style->setLinkHREF(new_url); LLStyleConstSP sp(new_style); segment->setStyle(sp); } } } } void LLTextEditor::onMouseCaptureLost() { endSelection(); } /////////////////////////////////////////////////////////////////// // Hack for Notecards BOOL LLTextEditor::importBuffer(const char* buffer, S32 length ) { std::istringstream instream(buffer); // Version 1 format: // Linden text version 1\n // {\n // <EmbeddedItemList chunk> // Text length <bytes without \0>\n // <text without \0> (text may contain ext_char_values) // }\n char tbuf[MAX_STRING]; /* Flawfinder: ignore */ S32 version = 0; instream.getline(tbuf, MAX_STRING); if( 1 != sscanf(tbuf, "Linden text version %d", &version) ) { llwarns << "Invalid Linden text file header " << llendl; return FALSE; } if( 1 != version ) { llwarns << "Invalid Linden text file version: " << version << llendl; return FALSE; } instream.getline(tbuf, MAX_STRING); if( 0 != sscanf(tbuf, "{") ) { llwarns << "Invalid Linden text file format" << llendl; return FALSE; } S32 text_len = 0; instream.getline(tbuf, MAX_STRING); if( 1 != sscanf(tbuf, "Text length %d", &text_len) ) { llwarns << "Invalid Linden text length field" << llendl; return FALSE; } if( text_len > mMaxTextByteLength ) { llwarns << "Invalid Linden text length: " << text_len << llendl; return FALSE; } BOOL success = TRUE; char* text = new char[ text_len + 1]; if (text == NULL) { llerrs << "Memory allocation failure." << llendl; return FALSE; } instream.get(text, text_len + 1, '\0'); text[text_len] = '\0'; if( text_len != (S32)strlen(text) )/* Flawfinder: ignore */ { llwarns << llformat("Invalid text length: %d != %d ",strlen(text),text_len) << llendl;/* Flawfinder: ignore */ success = FALSE; } instream.getline(tbuf, MAX_STRING); if( success && (0 != sscanf(tbuf, "}")) ) { llwarns << "Invalid Linden text file format: missing terminal }" << llendl; success = FALSE; } if( success ) { // Actually set the text setText( LLStringExplicit(text) ); } delete[] text; startOfDoc(); deselect(); return success; } BOOL LLTextEditor::exportBuffer(std::string &buffer ) { std::ostringstream outstream(buffer); outstream << "Linden text version 1\n"; outstream << "{\n"; outstream << llformat("Text length %d\n", getLength() ); outstream << getText(); outstream << "}\n"; return TRUE; } void LLTextEditor::updateAllowingLanguageInput() { LLWindow* window = getWindow(); if (!window) { // test app, no window available return; } if (hasFocus() && !mReadOnly) { window->allowLanguageTextInput(this, TRUE); } else { window->allowLanguageTextInput(this, FALSE); } } // Preedit is managed off the undo/redo command stack. BOOL LLTextEditor::hasPreeditString() const { return (mPreeditPositions.size() > 1); } void LLTextEditor::resetPreedit() { if (hasPreeditString()) { if (hasSelection()) { llwarns << "Preedit and selection!" << llendl; deselect(); } setCursorPos(mPreeditPositions.front()); removeStringNoUndo(mCursorPos, mPreeditPositions.back() - mCursorPos); insertStringNoUndo(mCursorPos, mPreeditOverwrittenWString); mPreeditWString.clear(); mPreeditOverwrittenWString.clear(); mPreeditPositions.clear(); // A call to updatePreedit should soon follow under a // normal course of operation, so we don't need to // maintain internal variables such as line start // positions now. } } void LLTextEditor::updatePreedit(const LLWString &preedit_string, const segment_lengths_t &preedit_segment_lengths, const standouts_t &preedit_standouts, S32 caret_position) { // Just in case. if (mReadOnly) { return; } getWindow()->hideCursorUntilMouseMove(); S32 insert_preedit_at = mCursorPos; mPreeditWString = preedit_string; mPreeditPositions.resize(preedit_segment_lengths.size() + 1); S32 position = insert_preedit_at; for (segment_lengths_t::size_type i = 0; i < preedit_segment_lengths.size(); i++) { mPreeditPositions[i] = position; position += preedit_segment_lengths[i]; } mPreeditPositions.back() = position; if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode()) { mPreeditOverwrittenWString = getWText().substr(insert_preedit_at, mPreeditWString.length()); removeStringNoUndo(insert_preedit_at, mPreeditWString.length()); } else { mPreeditOverwrittenWString.clear(); } insertStringNoUndo(insert_preedit_at, mPreeditWString); mPreeditStandouts = preedit_standouts; setCursorPos(insert_preedit_at + caret_position); // Update of the preedit should be caused by some key strokes. resetCursorBlink(); onKeyStroke(); } BOOL LLTextEditor::getPreeditLocation(S32 query_offset, LLCoordGL *coord, LLRect *bounds, LLRect *control) const { if (control) { LLRect control_rect_screen; localRectToScreen(mVisibleTextRect, &control_rect_screen); LLUI::screenRectToGL(control_rect_screen, control); } S32 preedit_left_position, preedit_right_position; if (hasPreeditString()) { preedit_left_position = mPreeditPositions.front(); preedit_right_position = mPreeditPositions.back(); } else { preedit_left_position = preedit_right_position = mCursorPos; } const S32 query = (query_offset >= 0 ? preedit_left_position + query_offset : mCursorPos); if (query < preedit_left_position || query > preedit_right_position) { return FALSE; } const S32 first_visible_line = getFirstVisibleLine(); if (query < getLineStart(first_visible_line)) { return FALSE; } S32 current_line = first_visible_line; S32 current_line_start, current_line_end; for (;;) { current_line_start = getLineStart(current_line); current_line_end = getLineStart(current_line + 1); if (query >= current_line_start && query < current_line_end) { break; } if (current_line_start == current_line_end) { // We have reached on the last line. The query position must be here. break; } current_line++; } const LLWString textString(getWText()); const llwchar * const text = textString.c_str(); const S32 line_height = llround(mDefaultFont->getLineHeight()); if (coord) { const S32 query_x = mVisibleTextRect.mLeft + mDefaultFont->getWidth(text, current_line_start, query - current_line_start); const S32 query_y = mVisibleTextRect.mTop - (current_line - first_visible_line) * line_height - line_height / 2; S32 query_screen_x, query_screen_y; localPointToScreen(query_x, query_y, &query_screen_x, &query_screen_y); LLUI::screenPointToGL(query_screen_x, query_screen_y, &coord->mX, &coord->mY); } if (bounds) { S32 preedit_left = mVisibleTextRect.mLeft; if (preedit_left_position > current_line_start) { preedit_left += mDefaultFont->getWidth(text, current_line_start, preedit_left_position - current_line_start); } S32 preedit_right = mVisibleTextRect.mLeft; if (preedit_right_position < current_line_end) { preedit_right += mDefaultFont->getWidth(text, current_line_start, preedit_right_position - current_line_start); } else { preedit_right += mDefaultFont->getWidth(text, current_line_start, current_line_end - current_line_start); } const S32 preedit_top = mVisibleTextRect.mTop - (current_line - first_visible_line) * line_height; const S32 preedit_bottom = preedit_top - line_height; const LLRect preedit_rect_local(preedit_left, preedit_top, preedit_right, preedit_bottom); LLRect preedit_rect_screen; localRectToScreen(preedit_rect_local, &preedit_rect_screen); LLUI::screenRectToGL(preedit_rect_screen, bounds); } return TRUE; } void LLTextEditor::getSelectionRange(S32 *position, S32 *length) const { if (hasSelection()) { *position = llmin(mSelectionStart, mSelectionEnd); *length = llabs(mSelectionStart - mSelectionEnd); } else { *position = mCursorPos; *length = 0; } } void LLTextEditor::getPreeditRange(S32 *position, S32 *length) const { if (hasPreeditString()) { *position = mPreeditPositions.front(); *length = mPreeditPositions.back() - mPreeditPositions.front(); } else { *position = mCursorPos; *length = 0; } } void LLTextEditor::markAsPreedit(S32 position, S32 length) { deselect(); setCursorPos(position); if (hasPreeditString()) { llwarns << "markAsPreedit invoked when hasPreeditString is true." << llendl; } mPreeditWString = LLWString( getWText(), position, length ); if (length > 0) { mPreeditPositions.resize(2); mPreeditPositions[0] = position; mPreeditPositions[1] = position + length; mPreeditStandouts.resize(1); mPreeditStandouts[0] = FALSE; } else { mPreeditPositions.clear(); mPreeditStandouts.clear(); } if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode()) { mPreeditOverwrittenWString = mPreeditWString; } else { mPreeditOverwrittenWString.clear(); } } S32 LLTextEditor::getPreeditFontSize() const { return llround(mDefaultFont->getLineHeight() * LLUI::sGLScaleFactor.mV[VY]); } BOOL LLTextEditor::isDirty() const { if(mReadOnly) { return FALSE; } if( mPristineCmd ) { return ( mPristineCmd == mLastCmd ); } else { return ( NULL != mLastCmd ); } } void LLTextEditor::setKeystrokeCallback(const keystroke_signal_t::slot_type& callback) { mKeystrokeSignal.connect(callback); } void LLTextEditor::onKeyStroke() { mKeystrokeSignal(this); } //virtual void LLTextEditor::clear() { getViewModel()->setDisplay(LLWStringUtil::null); clearSegments(); }