diff options
Diffstat (limited to 'indra/llui/lltexteditor.h')
-rw-r--r-- | indra/llui/lltexteditor.h | 702 |
1 files changed, 351 insertions, 351 deletions
diff --git a/indra/llui/lltexteditor.h b/indra/llui/lltexteditor.h index 873a028702..2bffc813a5 100644 --- a/indra/llui/lltexteditor.h +++ b/indra/llui/lltexteditor.h @@ -1,351 +1,351 @@ -/** - * @file lltexteditor.h - * @brief LLTextEditor base class - * - * $LicenseInfo:firstyear=2001&license=viewerlgpl$ - * 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// - -#ifndef LL_LLTEXTEDITOR_H -#define LL_LLTEXTEDITOR_H - -#include "llrect.h" -#include "llframetimer.h" -#include "llstyle.h" -#include "lleditmenuhandler.h" -#include "llviewborder.h" // for params -#include "lltextbase.h" -#include "lltextvalidate.h" - -#include "llpreeditor.h" -#include "llcontrol.h" - -class LLFontGL; -class LLScrollbar; -class TextCmd; -class LLUICtrlFactory; -class LLScrollContainer; - -class LLTextEditor : - public LLTextBase, - protected LLPreeditor -{ -public: - struct Params : public LLInitParam::Block<Params, LLTextBase::Params> - { - Optional<std::string> default_text; - Optional<LLTextValidate::validate_func_t, LLTextValidate::ValidateTextNamedFuncs> prevalidate_callback; - - Optional<bool> embedded_items, - ignore_tab, - commit_on_focus_lost, - show_context_menu, - show_emoji_helper, - enable_tooltip_paste, - auto_indent; - - //colors - Optional<LLUIColor> default_color; - - Params(); - }; - - void initFromParams(const Params&); -protected: - LLTextEditor(const Params&); - friend class LLUICtrlFactory; -public: - // - // Constants - // - static const llwchar FIRST_EMBEDDED_CHAR = 0x100000; - static const llwchar LAST_EMBEDDED_CHAR = 0x10ffff; - static const S32 MAX_EMBEDDED_ITEMS = LAST_EMBEDDED_CHAR - FIRST_EMBEDDED_CHAR + 1; - - virtual ~LLTextEditor(); - - typedef boost::signals2::signal<void (LLTextEditor* caller)> keystroke_signal_t; - - void setKeystrokeCallback(const keystroke_signal_t::slot_type& callback); - - void setParseHighlights(bool parsing) {mParseHighlights=parsing;} - - static S32 spacesPerTab(); - - void insertEmoji(llwchar emoji); - void handleEmojiCommit(llwchar emoji); - - // mousehandler overrides - virtual bool handleMouseDown(S32 x, S32 y, MASK mask); - virtual bool handleMouseUp(S32 x, S32 y, MASK mask); - virtual bool handleRightMouseDown(S32 x, S32 y, MASK mask); - virtual bool handleHover(S32 x, S32 y, MASK mask); - virtual bool handleDoubleClick(S32 x, S32 y, MASK mask ); - virtual bool handleMiddleMouseDown(S32 x,S32 y,MASK mask); - - virtual bool handleKeyHere(KEY key, MASK mask ); - virtual bool handleUnicodeCharHere(llwchar uni_char); - - virtual void onMouseCaptureLost(); - - // view overrides - virtual void draw(); - virtual void onFocusReceived(); - virtual void onFocusLost(); - virtual void onCommit(); - virtual void setEnabled(bool enabled); - - // uictrl overrides - virtual void clear(); - virtual void setFocus( bool b ); - virtual bool isDirty() const; - - // LLEditMenuHandler interface - virtual void undo(); - virtual bool canUndo() const; - virtual void redo(); - virtual bool canRedo() const; - - virtual void cut(); - virtual bool canCut() const; - virtual void copy(); - virtual bool canCopy() const; - virtual void paste(); - virtual bool canPaste() const; - - virtual void updatePrimary(); - virtual void copyPrimary(); - virtual void pastePrimary(); - virtual bool canPastePrimary() const; - - virtual void doDelete(); - virtual bool canDoDelete() const; - virtual void selectAll(); - virtual bool canSelectAll() const; - - void selectByCursorPosition(S32 prev_cursor_pos, S32 next_cursor_pos); - - virtual bool canLoadOrSaveToFile(); - - void selectNext(const std::string& search_text_in, bool case_insensitive, bool wrap = true); - bool replaceText(const std::string& search_text, const std::string& replace_text, bool case_insensitive, bool wrap = true); - void replaceTextAll(const std::string& search_text, const std::string& replace_text, bool case_insensitive); - - // Undo/redo stack - void blockUndo(); - - // Text editing - virtual void makePristine(); - bool isPristine() const; - bool allowsEmbeddedItems() const { return mAllowEmbeddedItems; } - - // Autoreplace (formerly part of LLLineEditor) - typedef boost::function<void(S32&, S32&, LLWString&, S32&, const LLWString&)> autoreplace_callback_t; - autoreplace_callback_t mAutoreplaceCallback; - void setAutoreplaceCallback(autoreplace_callback_t cb) { mAutoreplaceCallback = cb; } - - /*virtual*/ void onSpellCheckPerformed(); - - // - // Text manipulation - // - - // inserts text at cursor - void insertText(const std::string &text); - void insertText(LLWString &text); - - void appendWidget(const LLInlineViewSegment::Params& params, const std::string& text, bool allow_undo); - // Non-undoable - void setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params = LLStyle::Params()); - - - // Removes text from the end of document - // Does not change highlight or cursor position. - void removeTextFromEnd(S32 num_chars); - - bool tryToRevertToPristineState(); - - void setCursorAndScrollToEnd(); - - void getCurrentLineAndColumn( S32* line, S32* col, bool include_wordwrap ); - - // Hacky methods to make it into a word-wrapping, potentially scrolling, - // read-only text box. - void setCommitOnFocusLost(bool b) { mCommitOnFocusLost = b; } - - // Hack to handle Notecards - virtual bool importBuffer(const char* buffer, S32 length ); - virtual bool exportBuffer(std::string& buffer ); - - const LLUUID& getSourceID() const { return mSourceID; } - - const LLTextSegmentPtr getPreviousSegment() const; - const LLTextSegmentPtr getLastSegment() const; - void getSelectedSegments(segment_vec_t& segments) const; - - void setShowContextMenu(bool show) { mShowContextMenu = show; } - bool getShowContextMenu() const { return mShowContextMenu; } - - void showEmojiHelper(); - void setShowEmojiHelper(bool show); - bool getShowEmojiHelper() const { return mShowEmojiHelper; } - - void setPassDelete(bool b) { mPassDelete = b; } - -protected: - void showContextMenu(S32 x, S32 y); - void drawPreeditMarker(); - - void assignEmbedded(const std::string &s); - - void removeCharOrTab(); - - void indentSelectedLines( S32 spaces ); - S32 indentLine( S32 pos, S32 spaces ); - void unindentLineBeforeCloseBrace(); - - virtual bool handleSpecialKey(const KEY key, const MASK mask); - bool handleNavigationKey(const KEY key, const MASK mask); - bool handleSelectionKey(const KEY key, const MASK mask); - bool handleControlKey(const KEY key, const MASK mask); - - bool selectionContainsLineBreaks(); - void deleteSelection(bool transient_operation); - - S32 prevWordPos(S32 cursorPos) const; - S32 nextWordPos(S32 cursorPos) const; - - void autoIndent(); - - void findEmbeddedItemSegments(S32 start, S32 end); - void getSegmentsInRange(segment_vec_t& segments, S32 start, S32 end, bool include_partial) const; - - virtual llwchar pasteEmbeddedItem(llwchar ext_char) { return ext_char; } - - - // Here's the method that takes and applies text commands. - S32 execute(TextCmd* cmd); - - // Undoable operations - void addChar(llwchar c); // at mCursorPos - S32 addChar(S32 pos, llwchar wc); - void addLineBreakChar(bool group_together = false); - S32 overwriteChar(S32 pos, llwchar wc); - void removeChar(); - S32 removeChar(S32 pos); - S32 insert(S32 pos, const LLWString &wstr, bool group_with_next_op, LLTextSegmentPtr segment); - S32 remove(S32 pos, S32 length, bool group_with_next_op); - - void tryToShowEmojiHelper(); - void focusLostHelper(); - void updateAllowingLanguageInput(); - bool hasPreeditString() const; - - // Overrides LLPreeditor - virtual void resetPreedit(); - virtual void updatePreedit(const LLWString &preedit_string, - const segment_lengths_t &preedit_segment_lengths, const standouts_t &preedit_standouts, S32 caret_position); - virtual void markAsPreedit(S32 position, S32 length); - virtual void getPreeditRange(S32 *position, S32 *length) const; - virtual void getSelectionRange(S32 *position, S32 *length) const; - virtual bool getPreeditLocation(S32 query_offset, LLCoordGL *coord, LLRect *bounds, LLRect *control) const; - virtual S32 getPreeditFontSize() const; - virtual LLWString getPreeditString() const { return getWText(); } - // - // Protected data - // - // Probably deserves serious thought to hiding as many of these - // as possible behind protected accessor methods. - // - - // Use these to determine if a click on an embedded item is a drag or not. - S32 mMouseDownX; - S32 mMouseDownY; - - LLWString mPreeditWString; - LLWString mPreeditOverwrittenWString; - std::vector<S32> mPreeditPositions; - LLPreeditor::standouts_t mPreeditStandouts; - -protected: - LLUIColor mDefaultColor; - - bool mAutoIndent; - bool mParseOnTheFly; - - void updateLinkSegments(); - void keepSelectionOnReturn(bool keep) { mKeepSelectionOnReturn = keep; } - class LLViewBorder* mBorder; - -private: - // - // Methods - // - void pasteHelper(bool is_primary); - void cleanStringForPaste(LLWString & clean_string); - void pasteTextWithLinebreaks(LLWString & clean_string); - - void onKeyStroke(); - - // Concrete TextCmd sub-classes used by the LLTextEditor base class - class TextCmdInsert; - class TextCmdAddChar; - class TextCmdOverwriteChar; - class TextCmdRemove; - - bool mBaseDocIsPristine; - TextCmd* mPristineCmd; - - TextCmd* mLastCmd; - - typedef std::deque<TextCmd*> undo_stack_t; - undo_stack_t mUndoStack; - - bool mTabsToNextField; // if true, tab moves focus to next field, else inserts spaces - bool mCommitOnFocusLost; - bool mTakesFocus; - - bool mAllowEmbeddedItems; - bool mShowContextMenu; - bool mShowEmojiHelper; - bool mEnableTooltipPaste; - bool mPassDelete; - bool mKeepSelectionOnReturn; // disabling of removing selected text after pressing of Enter - - LLUUID mSourceID; - - LLCoordGL mLastIMEPosition; // Last position of the IME editor - - keystroke_signal_t mKeystrokeSignal; - LLTextValidate::validate_func_t mPrevalidateFunc; - - LLHandle<LLContextMenu> mContextMenuHandle; -}; // end class LLTextEditor - -// Build time optimization, generate once in .cpp file -#ifndef LLTEXTEDITOR_CPP -extern template class LLTextEditor* LLView::getChild<class LLTextEditor>( - const std::string& name, bool recurse) const; -#endif - -#endif // LL_TEXTEDITOR_H +/**
+ * @file lltexteditor.h
+ * @brief LLTextEditor base class
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * 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//
+
+#ifndef LL_LLTEXTEDITOR_H
+#define LL_LLTEXTEDITOR_H
+
+#include "llrect.h"
+#include "llframetimer.h"
+#include "llstyle.h"
+#include "lleditmenuhandler.h"
+#include "llviewborder.h" // for params
+#include "lltextbase.h"
+#include "lltextvalidate.h"
+
+#include "llpreeditor.h"
+#include "llcontrol.h"
+
+class LLFontGL;
+class LLScrollbar;
+class TextCmd;
+class LLUICtrlFactory;
+class LLScrollContainer;
+
+class LLTextEditor :
+ public LLTextBase,
+ protected LLPreeditor
+{
+public:
+ struct Params : public LLInitParam::Block<Params, LLTextBase::Params>
+ {
+ Optional<std::string> default_text;
+ Optional<LLTextValidate::Validator, LLTextValidate::Validators> prevalidator;
+
+ Optional<bool> embedded_items,
+ ignore_tab,
+ commit_on_focus_lost,
+ show_context_menu,
+ show_emoji_helper,
+ enable_tooltip_paste,
+ auto_indent;
+
+ //colors
+ Optional<LLUIColor> default_color;
+
+ Params();
+ };
+
+ void initFromParams(const Params&);
+protected:
+ LLTextEditor(const Params&);
+ friend class LLUICtrlFactory;
+public:
+ //
+ // Constants
+ //
+ static const llwchar FIRST_EMBEDDED_CHAR = 0x100000;
+ static const llwchar LAST_EMBEDDED_CHAR = 0x10ffff;
+ static const S32 MAX_EMBEDDED_ITEMS = LAST_EMBEDDED_CHAR - FIRST_EMBEDDED_CHAR + 1;
+
+ virtual ~LLTextEditor();
+
+ typedef boost::signals2::signal<void (LLTextEditor* caller)> keystroke_signal_t;
+
+ void setKeystrokeCallback(const keystroke_signal_t::slot_type& callback);
+
+ void setParseHighlights(bool parsing) {mParseHighlights=parsing;}
+
+ static S32 spacesPerTab();
+
+ void insertEmoji(llwchar emoji);
+ void handleEmojiCommit(llwchar emoji);
+
+ // mousehandler overrides
+ virtual bool handleMouseDown(S32 x, S32 y, MASK mask);
+ virtual bool handleMouseUp(S32 x, S32 y, MASK mask);
+ virtual bool handleRightMouseDown(S32 x, S32 y, MASK mask);
+ virtual bool handleHover(S32 x, S32 y, MASK mask);
+ virtual bool handleDoubleClick(S32 x, S32 y, MASK mask );
+ virtual bool handleMiddleMouseDown(S32 x,S32 y,MASK mask);
+
+ virtual bool handleKeyHere(KEY key, MASK mask );
+ virtual bool handleUnicodeCharHere(llwchar uni_char);
+
+ virtual void onMouseCaptureLost();
+
+ // view overrides
+ virtual void draw();
+ virtual void onFocusReceived();
+ virtual void onFocusLost();
+ virtual void onCommit();
+ virtual void setEnabled(bool enabled);
+
+ // uictrl overrides
+ virtual void clear();
+ virtual void setFocus( bool b );
+ virtual bool isDirty() const;
+
+ // LLEditMenuHandler interface
+ virtual void undo();
+ virtual bool canUndo() const;
+ virtual void redo();
+ virtual bool canRedo() const;
+
+ virtual void cut();
+ virtual bool canCut() const;
+ virtual void copy();
+ virtual bool canCopy() const;
+ virtual void paste();
+ virtual bool canPaste() const;
+
+ virtual void updatePrimary();
+ virtual void copyPrimary();
+ virtual void pastePrimary();
+ virtual bool canPastePrimary() const;
+
+ virtual void doDelete();
+ virtual bool canDoDelete() const;
+ virtual void selectAll();
+ virtual bool canSelectAll() const;
+
+ void selectByCursorPosition(S32 prev_cursor_pos, S32 next_cursor_pos);
+
+ virtual bool canLoadOrSaveToFile();
+
+ void selectNext(const std::string& search_text_in, bool case_insensitive, bool wrap = true);
+ bool replaceText(const std::string& search_text, const std::string& replace_text, bool case_insensitive, bool wrap = true);
+ void replaceTextAll(const std::string& search_text, const std::string& replace_text, bool case_insensitive);
+
+ // Undo/redo stack
+ void blockUndo();
+
+ // Text editing
+ virtual void makePristine();
+ bool isPristine() const;
+ bool allowsEmbeddedItems() const { return mAllowEmbeddedItems; }
+
+ // Autoreplace (formerly part of LLLineEditor)
+ typedef boost::function<void(S32&, S32&, LLWString&, S32&, const LLWString&)> autoreplace_callback_t;
+ autoreplace_callback_t mAutoreplaceCallback;
+ void setAutoreplaceCallback(autoreplace_callback_t cb) { mAutoreplaceCallback = cb; }
+
+ /*virtual*/ void onSpellCheckPerformed();
+
+ //
+ // Text manipulation
+ //
+
+ // inserts text at cursor
+ void insertText(const std::string &text);
+ void insertText(LLWString &text);
+
+ void appendWidget(const LLInlineViewSegment::Params& params, const std::string& text, bool allow_undo);
+ // Non-undoable
+ void setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params = LLStyle::Params());
+
+
+ // Removes text from the end of document
+ // Does not change highlight or cursor position.
+ void removeTextFromEnd(S32 num_chars);
+
+ bool tryToRevertToPristineState();
+
+ void setCursorAndScrollToEnd();
+
+ void getCurrentLineAndColumn( S32* line, S32* col, bool include_wordwrap );
+
+ // Hacky methods to make it into a word-wrapping, potentially scrolling,
+ // read-only text box.
+ void setCommitOnFocusLost(bool b) { mCommitOnFocusLost = b; }
+
+ // Hack to handle Notecards
+ virtual bool importBuffer(const char* buffer, S32 length );
+ virtual bool exportBuffer(std::string& buffer );
+
+ const LLUUID& getSourceID() const { return mSourceID; }
+
+ const LLTextSegmentPtr getPreviousSegment() const;
+ const LLTextSegmentPtr getLastSegment() const;
+ void getSelectedSegments(segment_vec_t& segments) const;
+
+ void setShowContextMenu(bool show) { mShowContextMenu = show; }
+ bool getShowContextMenu() const { return mShowContextMenu; }
+
+ void showEmojiHelper();
+ void setShowEmojiHelper(bool show);
+ bool getShowEmojiHelper() const { return mShowEmojiHelper; }
+
+ void setPassDelete(bool b) { mPassDelete = b; }
+
+protected:
+ void showContextMenu(S32 x, S32 y);
+ void drawPreeditMarker();
+
+ void assignEmbedded(const std::string &s);
+
+ void removeCharOrTab();
+
+ void indentSelectedLines( S32 spaces );
+ S32 indentLine( S32 pos, S32 spaces );
+ void unindentLineBeforeCloseBrace();
+
+ virtual bool handleSpecialKey(const KEY key, const MASK mask);
+ bool handleNavigationKey(const KEY key, const MASK mask);
+ bool handleSelectionKey(const KEY key, const MASK mask);
+ bool handleControlKey(const KEY key, const MASK mask);
+
+ bool selectionContainsLineBreaks();
+ void deleteSelection(bool transient_operation);
+
+ S32 prevWordPos(S32 cursorPos) const;
+ S32 nextWordPos(S32 cursorPos) const;
+
+ void autoIndent();
+
+ void findEmbeddedItemSegments(S32 start, S32 end);
+ void getSegmentsInRange(segment_vec_t& segments, S32 start, S32 end, bool include_partial) const;
+
+ virtual llwchar pasteEmbeddedItem(llwchar ext_char) { return ext_char; }
+
+
+ // Here's the method that takes and applies text commands.
+ S32 execute(TextCmd* cmd);
+
+ // Undoable operations
+ void addChar(llwchar c); // at mCursorPos
+ S32 addChar(S32 pos, llwchar wc);
+ void addLineBreakChar(bool group_together = false);
+ S32 overwriteChar(S32 pos, llwchar wc);
+ void removeChar();
+ S32 removeChar(S32 pos);
+ S32 insert(S32 pos, const LLWString &wstr, bool group_with_next_op, LLTextSegmentPtr segment);
+ S32 remove(S32 pos, S32 length, bool group_with_next_op);
+
+ void tryToShowEmojiHelper();
+ void focusLostHelper();
+ void updateAllowingLanguageInput();
+ bool hasPreeditString() const;
+
+ // Overrides LLPreeditor
+ virtual void resetPreedit();
+ virtual void updatePreedit(const LLWString &preedit_string,
+ const segment_lengths_t &preedit_segment_lengths, const standouts_t &preedit_standouts, S32 caret_position);
+ virtual void markAsPreedit(S32 position, S32 length);
+ virtual void getPreeditRange(S32 *position, S32 *length) const;
+ virtual void getSelectionRange(S32 *position, S32 *length) const;
+ virtual bool getPreeditLocation(S32 query_offset, LLCoordGL *coord, LLRect *bounds, LLRect *control) const;
+ virtual S32 getPreeditFontSize() const;
+ virtual LLWString getPreeditString() const { return getWText(); }
+ //
+ // Protected data
+ //
+ // Probably deserves serious thought to hiding as many of these
+ // as possible behind protected accessor methods.
+ //
+
+ // Use these to determine if a click on an embedded item is a drag or not.
+ S32 mMouseDownX;
+ S32 mMouseDownY;
+
+ LLWString mPreeditWString;
+ LLWString mPreeditOverwrittenWString;
+ std::vector<S32> mPreeditPositions;
+ LLPreeditor::standouts_t mPreeditStandouts;
+
+protected:
+ LLUIColor mDefaultColor;
+
+ bool mAutoIndent;
+ bool mParseOnTheFly;
+
+ void updateLinkSegments();
+ void keepSelectionOnReturn(bool keep) { mKeepSelectionOnReturn = keep; }
+ class LLViewBorder* mBorder;
+
+private:
+ //
+ // Methods
+ //
+ void pasteHelper(bool is_primary);
+ void cleanStringForPaste(LLWString & clean_string);
+ void pasteTextWithLinebreaks(LLWString & clean_string);
+
+ void onKeyStroke();
+
+ // Concrete TextCmd sub-classes used by the LLTextEditor base class
+ class TextCmdInsert;
+ class TextCmdAddChar;
+ class TextCmdOverwriteChar;
+ class TextCmdRemove;
+
+ bool mBaseDocIsPristine;
+ TextCmd* mPristineCmd;
+
+ TextCmd* mLastCmd;
+
+ typedef std::deque<TextCmd*> undo_stack_t;
+ undo_stack_t mUndoStack;
+
+ bool mTabsToNextField; // if true, tab moves focus to next field, else inserts spaces
+ bool mCommitOnFocusLost;
+ bool mTakesFocus;
+
+ bool mAllowEmbeddedItems;
+ bool mShowContextMenu;
+ bool mShowEmojiHelper;
+ bool mEnableTooltipPaste;
+ bool mPassDelete;
+ bool mKeepSelectionOnReturn; // disabling of removing selected text after pressing of Enter
+
+ LLUUID mSourceID;
+
+ LLCoordGL mLastIMEPosition; // Last position of the IME editor
+
+ keystroke_signal_t mKeystrokeSignal;
+ LLTextValidate::Validator mPrevalidator;
+
+ LLHandle<LLContextMenu> mContextMenuHandle;
+}; // end class LLTextEditor
+
+// Build time optimization, generate once in .cpp file
+#ifndef LLTEXTEDITOR_CPP
+extern template class LLTextEditor* LLView::getChild<class LLTextEditor>(
+ const std::string& name, bool recurse) const;
+#endif
+
+#endif // LL_TEXTEDITOR_H
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