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Diffstat (limited to 'indra/llui/llfolderview.h')
| -rwxr-xr-x | indra/llui/llfolderview.h | 399 |
1 files changed, 399 insertions, 0 deletions
diff --git a/indra/llui/llfolderview.h b/indra/llui/llfolderview.h new file mode 100755 index 0000000000..11fccdace4 --- /dev/null +++ b/indra/llui/llfolderview.h @@ -0,0 +1,399 @@ +/** + * @file llfolderview.h + * @brief Definition of the folder view collection of classes. + * + * $LicenseInfo:firstyear=2001&license=viewerlgpl$ + * 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 + * $/LicenseInfo$ + */ + +/** + * + * The folder view collection of classes provides an interface for + * making a 'folder view' similar to the way the a single pane file + * folder interface works. + * + */ + +#ifndef LL_LLFOLDERVIEW_H +#define LL_LLFOLDERVIEW_H + +#include "llfolderviewitem.h" // because LLFolderView is-a LLFolderViewFolder + +#include "lluictrl.h" +#include "v4color.h" +#include "stdenums.h" +#include "lldepthstack.h" +#include "lleditmenuhandler.h" +#include "llfontgl.h" +#include "llscrollcontainer.h" + +class LLFolderViewModelInterface; +class LLFolderViewFolder; +class LLFolderViewItem; +class LLFolderViewFilter; +class LLPanel; +class LLLineEditor; +class LLMenuGL; +class LLUICtrl; +class LLTextBox; + +/** + * Class LLFolderViewScrollContainer + * + * A scroll container which provides the information about the height + * of currently displayed folder view contents. + * Used for updating vertical scroll bar visibility in inventory panel. + * See LLScrollContainer::calcVisibleSize(). + */ +class LLFolderViewScrollContainer : public LLScrollContainer +{ +public: + /*virtual*/ ~LLFolderViewScrollContainer() {}; + /*virtual*/ const LLRect getScrolledViewRect() const; + +protected: + LLFolderViewScrollContainer(const LLScrollContainer::Params& p); + friend class LLUICtrlFactory; +}; + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Class LLFolderView +// +// The LLFolderView represents the root level folder view object. +// It manages the screen region of the folder view. +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +class LLFolderView : public LLFolderViewFolder, public LLEditMenuHandler +{ +public: + struct Params : public LLInitParam::Block<Params, LLFolderViewFolder::Params> + { + Mandatory<LLPanel*> parent_panel; + Optional<std::string> title; + Optional<bool> use_label_suffix, + allow_multiselect, + show_empty_message, + use_ellipses, + show_item_link_overlays; + Mandatory<LLFolderViewModelInterface*> view_model; + Mandatory<std::string> options_menu; + + + Params(); + }; + + friend class LLFolderViewScrollContainer; + typedef std::deque<LLFolderViewItem*> selected_items_t; + + LLFolderView(const Params&); + virtual ~LLFolderView( void ); + + virtual BOOL canFocusChildren() const; + + virtual const LLFolderView* getRoot() const { return this; } + virtual LLFolderView* getRoot() { return this; } + + LLFolderViewModelInterface* getFolderViewModel() { return mViewModel; } + const LLFolderViewModelInterface* getFolderViewModel() const { return mViewModel; } + + typedef boost::signals2::signal<void (const std::deque<LLFolderViewItem*>& items, BOOL user_action)> signal_t; + void setSelectCallback(const signal_t::slot_type& cb) { mSelectSignal.connect(cb); } + void setReshapeCallback(const signal_t::slot_type& cb) { mReshapeSignal.connect(cb); } + + bool getAllowMultiSelect() { return mAllowMultiSelect; } + + // Close all folders in the view + void closeAllFolders(); + void openTopLevelFolders(); + + virtual void addFolder( LLFolderViewFolder* folder); + + // Find width and height of this object and its children. Also + // makes sure that this view and its children are the right size. + virtual S32 arrange( S32* width, S32* height ); + virtual S32 getItemHeight(); + + void arrangeAll() { mArrangeGeneration++; } + S32 getArrangeGeneration() { return mArrangeGeneration; } + + // applies filters to control visibility of items + virtual void filter( LLFolderViewFilter& filter); + + // Get the last selected item + virtual LLFolderViewItem* getCurSelectedItem( void ); + selected_items_t& getSelectedItems( void ); + + // Record the selected item and pass it down the hierarchy. + virtual BOOL setSelection(LLFolderViewItem* selection, BOOL openitem, + BOOL take_keyboard_focus = TRUE); + + // This method is used to toggle the selection of an item. Walks + // children, and keeps track of selected objects. + virtual BOOL changeSelection(LLFolderViewItem* selection, BOOL selected); + + virtual std::set<LLFolderViewItem*> getSelectionList() const; + + // Make sure if ancestor is selected, descendants are not + void sanitizeSelection(); + virtual void clearSelection(); + void addToSelectionList(LLFolderViewItem* item); + void removeFromSelectionList(LLFolderViewItem* item); + + bool startDrag(); + void setDragAndDropThisFrame() { mDragAndDropThisFrame = TRUE; } + void setDraggingOverItem(LLFolderViewItem* item) { mDraggingOverItem = item; } + LLFolderViewItem* getDraggingOverItem() { return mDraggingOverItem; } + + // Deletion functionality + void removeSelectedItems(); + + void autoOpenItem(LLFolderViewFolder* item); + void closeAutoOpenedFolders(); + BOOL autoOpenTest(LLFolderViewFolder* item); + BOOL isOpen() const { return TRUE; } // root folder always open + + // Copy & paste + virtual BOOL canCopy() const; + virtual void copy(); + + virtual BOOL canCut() const; + virtual void cut(); + + virtual BOOL canPaste() const; + virtual void paste(); + + LLFolderViewItem* getNextUnselectedItem(); + + // Public rename functionality - can only start the process + void startRenamingSelectedItem( void ); + + // LLView functionality + ///*virtual*/ BOOL handleKey( KEY key, MASK mask, BOOL called_from_parent ); + /*virtual*/ BOOL handleKeyHere( KEY key, MASK mask ); + /*virtual*/ BOOL handleUnicodeCharHere(llwchar uni_char); + /*virtual*/ BOOL handleMouseDown( S32 x, S32 y, MASK mask ); + /*virtual*/ BOOL handleDoubleClick( 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 handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop, + EDragAndDropType cargo_type, + void* cargo_data, + EAcceptance* accept, + std::string& tooltip_msg); + /*virtual*/ void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE); + /*virtual*/ void onMouseLeave(S32 x, S32 y, MASK mask) { setShowSelectionContext(FALSE); } + virtual void draw(); + virtual void deleteAllChildren(); + + void scrollToShowSelection(); + void scrollToShowItem(LLFolderViewItem* item, const LLRect& constraint_rect); + void setScrollContainer( LLScrollContainer* parent ) { mScrollContainer = parent; } + LLRect getVisibleRect(); + + BOOL search(LLFolderViewItem* first_item, const std::string &search_string, BOOL backward); + void setShowSelectionContext(BOOL show) { mShowSelectionContext = show; } + BOOL getShowSelectionContext(); + void setShowSingleSelection(BOOL show); + BOOL getShowSingleSelection() { return mShowSingleSelection; } + F32 getSelectionFadeElapsedTime() { return mMultiSelectionFadeTimer.getElapsedTimeF32(); } + bool getUseEllipses() { return mUseEllipses; } + S32 getSelectedCount() { return (S32)mSelectedItems.size(); } + + void update(); // needs to be called periodically (e.g. once per frame) + + BOOL needsAutoSelect() { return mNeedsAutoSelect && !mAutoSelectOverride; } + BOOL needsAutoRename() { return mNeedsAutoRename; } + void setNeedsAutoRename(BOOL val) { mNeedsAutoRename = val; } + void setPinningSelectedItem(BOOL val) { mPinningSelectedItem = val; } + void setAutoSelectOverride(BOOL val) { mAutoSelectOverride = val; } + + bool showItemLinkOverlays() { return mShowItemLinkOverlays; } + + void setCallbackRegistrar(LLUICtrl::CommitCallbackRegistry::ScopedRegistrar* registrar) { mCallbackRegistrar = registrar; } + + LLPanel* getParentPanel() { return mParentPanel; } + // DEBUG only + void dumpSelectionInformation(); + + virtual S32 notify(const LLSD& info) ; + + bool useLabelSuffix() { return mUseLabelSuffix; } + void updateMenu(); + +private: + void updateMenuOptions(LLMenuGL* menu); + void updateRenamerPosition(); + +protected: + LLScrollContainer* mScrollContainer; // NULL if this is not a child of a scroll container. + + void commitRename( const LLSD& data ); + void onRenamerLost(); + + void finishRenamingItem( void ); + void closeRenamer( void ); + + bool selectFirstItem(); + bool selectLastItem(); + + BOOL addNoOptions(LLMenuGL* menu) const; + + +protected: + LLHandle<LLView> mPopupMenuHandle; + + selected_items_t mSelectedItems; + BOOL mKeyboardSelection; + BOOL mAllowMultiSelect; + BOOL mShowEmptyMessage; + BOOL mShowFolderHierarchy; + + // Renaming variables and methods + LLFolderViewItem* mRenameItem; // The item currently being renamed + LLLineEditor* mRenamer; + + BOOL mNeedsScroll; + BOOL mPinningSelectedItem; + LLRect mScrollConstraintRect; + BOOL mNeedsAutoSelect; + BOOL mAutoSelectOverride; + BOOL mNeedsAutoRename; + bool mUseLabelSuffix; + bool mShowItemLinkOverlays; + + LLDepthStack<LLFolderViewFolder> mAutoOpenItems; + LLFolderViewFolder* mAutoOpenCandidate; + LLFrameTimer mAutoOpenTimer; + LLFrameTimer mSearchTimer; + std::string mSearchString; + BOOL mShowSelectionContext; + BOOL mShowSingleSelection; + LLFrameTimer mMultiSelectionFadeTimer; + S32 mArrangeGeneration; + + signal_t mSelectSignal; + signal_t mReshapeSignal; + S32 mSignalSelectCallback; + S32 mMinWidth; + BOOL mDragAndDropThisFrame; + + LLPanel* mParentPanel; + + LLFolderViewModelInterface* mViewModel; + + /** + * Is used to determine if we need to cut text In LLFolderViewItem to avoid horizontal scroll. + * NOTE: For now it's used only to cut LLFolderViewItem::mLabel text for Landmarks in Places Panel. + */ + bool mUseEllipses; // See EXT-719 + + /** + * Contains item under mouse pointer while dragging + */ + LLFolderViewItem* mDraggingOverItem; // See EXT-719 + + LLUICtrl::CommitCallbackRegistry::ScopedRegistrar* mCallbackRegistrar; + +public: + static F32 sAutoOpenTime; + LLTextBox* mStatusTextBox; + +}; + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Class LLFolderViewFunctor +// +// Simple abstract base class for applying a functor to folders and +// items in a folder view hierarchy. This is suboptimal for algorithms +// that only work folders or only work on items, but I'll worry about +// that later when it's determined to be too slow. +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +class LLFolderViewFunctor +{ +public: + virtual ~LLFolderViewFunctor() {} + virtual void doFolder(LLFolderViewFolder* folder) = 0; + virtual void doItem(LLFolderViewItem* item) = 0; +}; + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Class LLSelectFirstFilteredItem +// +// This will select the first *item* found in the hierarchy. If no item can be +// selected, the first matching folder will. +// Since doFolder() is done first but we prioritize item selection, we let the +// first filtered folder set the selection and raise a folder flag. +// The selection might be overridden by the first filtered item in doItem() +// which checks an item flag. Since doFolder() checks the item flag too, the first +// item will still be selected if items were to be done first and folders second. +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +class LLSelectFirstFilteredItem : public LLFolderViewFunctor +{ +public: + LLSelectFirstFilteredItem() : mItemSelected(FALSE), mFolderSelected(FALSE) {} + virtual ~LLSelectFirstFilteredItem() {} + virtual void doFolder(LLFolderViewFolder* folder); + virtual void doItem(LLFolderViewItem* item); + BOOL wasItemSelected() { return mItemSelected || mFolderSelected; } +protected: + BOOL mItemSelected; + BOOL mFolderSelected; +}; + +class LLOpenFilteredFolders : public LLFolderViewFunctor +{ +public: + LLOpenFilteredFolders() {} + virtual ~LLOpenFilteredFolders() {} + virtual void doFolder(LLFolderViewFolder* folder); + virtual void doItem(LLFolderViewItem* item); +}; + +class LLSaveFolderState : public LLFolderViewFunctor +{ +public: + LLSaveFolderState() : mApply(FALSE) {} + virtual ~LLSaveFolderState() {} + virtual void doFolder(LLFolderViewFolder* folder); + virtual void doItem(LLFolderViewItem* item) {} + void setApply(BOOL apply); + void clearOpenFolders() { mOpenFolders.clear(); } +protected: + std::set<LLUUID> mOpenFolders; + BOOL mApply; +}; + +class LLOpenFoldersWithSelection : public LLFolderViewFunctor +{ +public: + LLOpenFoldersWithSelection() {} + virtual ~LLOpenFoldersWithSelection() {} + virtual void doFolder(LLFolderViewFolder* folder); + virtual void doItem(LLFolderViewItem* item); +}; + +// Flags for buildContextMenu() +const U32 SUPPRESS_OPEN_ITEM = 0x1; +const U32 FIRST_SELECTED_ITEM = 0x2; +const U32 ITEM_IN_MULTI_SELECTION = 0x4; + +#endif // LL_LLFOLDERVIEW_H |