The WebPreviews are now controlled via a neat state machine

[quassel.git] / src / qtui / chatscene.h

diff --git a/src/qtui/chatscene.h b/src/qtui/chatscene.h
index b0c80f4..3ec77f5 100644 (file)
--- a/src/qtui/chatscene.h
+++ b/src/qtui/chatscene.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-08 by the Quassel Project                          *
+ *   Copyright (C) 2005-09 by the Quassel Project                          *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -22,17 +22,20 @@
 #define CHATSCENE_H_
 
 #include <QAbstractItemModel>
+#include <QClipboard>
+#include <QGraphicsItem>
 #include <QGraphicsScene>
 #include <QSet>
 #include <QTimer>
 
 #include "chatlinemodel.h"
-#include "columnhandleitem.h"
 #include "messagefilter.h"
 
 class AbstractUiMsg;
 class ChatItem;
 class ChatLine;
+class ChatView;
+class ColumnHandleItem;
 class WebPreviewItem;
 
 class QGraphicsSceneMouseEvent;
@@ -53,36 +56,51 @@ public:
     SenderChatItemType,
     ContentsChatItemType,
     SearchHighlightType,
-    WebPreviewType
+    WebPreviewType,
+    ColumnHandleType
   };
 
   enum ClickMode {
     NoClick,
+    DragStartClick,
     SingleClick,
     DoubleClick,
     TripleClick
   };
 
-  ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, QObject *parent);
+  ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, ChatView *parent);
   virtual ~ChatScene();
 
   inline QAbstractItemModel *model() const { return _model; }
+  inline MessageFilter *filter() const { return qobject_cast<MessageFilter*>(_model); }
   inline QString idString() const { return _idString; }
 
-  int rowByScenePos(qreal y);
-  inline int rowByScenePos(const QPointF &pos) { return rowByScenePos(pos.y()); }
-  ChatLineModel::ColumnType columnByScenePos(qreal x);
-  inline ChatLineModel::ColumnType columnByScenePos(const QPointF &pos) { return columnByScenePos(pos.x()); }
-  inline bool isSingleBufferScene() const { return _singleBufferScene; }
-  bool containsBuffer(const BufferId &id) const;
+  int rowByScenePos(qreal y) const;
+  inline int rowByScenePos(const QPointF &pos) const { return rowByScenePos(pos.y()); }
+  ChatLineModel::ColumnType columnByScenePos(qreal x) const ;
+  inline ChatLineModel::ColumnType columnByScenePos(const QPointF &pos) const { return columnByScenePos(pos.x()); }
+
+  ChatView *chatView() const;
+  ChatItem *chatItemAt(const QPointF &pos) const;
   inline ChatLine *chatLine(int row) { return (row < _lines.count()) ? _lines[row] : 0; }
 
-  inline ColumnHandleItem *firstColumnHandle() const { return _firstColHandle; }
-  inline ColumnHandleItem *secondColumnHandle() const { return _secondColHandle; }
+  inline bool isSingleBufferScene() const { return _singleBufferId.isValid(); }
+  inline BufferId singleBufferId() const { return _singleBufferId; }
+  bool containsBuffer(const BufferId &id) const;
+
+  ColumnHandleItem *firstColumnHandle() const;
+  ColumnHandleItem *secondColumnHandle() const;
 
   inline CutoffMode senderCutoffMode() const { return _cutoffMode; }
   inline void setSenderCutoffMode(CutoffMode mode) { _cutoffMode = mode; }
 
+  QString selection() const;
+  bool hasSelection() const;
+  bool hasGlobalSelection() const;
+  bool isPosOverSelection(const QPointF &) const;
+  bool isGloballySelecting() const;
+  void initiateDrag(QWidget *source);
+
   bool isScrollingAllowed() const;
 
   virtual bool event(QEvent *e);
@@ -95,12 +113,17 @@ public:
   void setSelectingItem(ChatItem *item);
   ChatItem *selectingItem() const { return _selectingItem; }
   void startGlobalSelection(ChatItem *item, const QPointF &itemPos);
-  void putToClipboard(const QString &);
+  void clearGlobalSelection();
+  void clearSelection();
+  void selectionToClipboard(QClipboard::Mode = QClipboard::Clipboard);
+  void stringToClipboard(const QString &str, QClipboard::Mode = QClipboard::Clipboard);
 
   void requestBacklog();
 
+#ifdef HAVE_WEBKIT
   void loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect);
   void clearWebPreview(ChatItem *parentItem = 0);
+#endif
 
 signals:
   void lastLineChanged(QGraphicsItem *item, qreal offset);
@@ -108,10 +131,12 @@ signals:
   void mouseMoveWhileSelecting(const QPointF &scenePos);
 
 protected:
+  virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *contextMenuEvent);
   virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
   virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
   virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
-  //virtual bool handleLeftClick(ClickMode mode);
+  virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *mouseEvent);
+  virtual void handleClick(Qt::MouseButton button, const QPointF &scenePos);
 
 protected slots:
   void rowsInserted(const QModelIndex &, int, int);
@@ -120,19 +145,22 @@ protected slots:
 private slots:
   void firstHandlePositionChanged(qreal xpos);
   void secondHandlePositionChanged(qreal xpos);
-  void showWebPreviewEvent();
-  void deleteWebPreviewEvent();
+#ifdef HAVE_WEBKIT
+  void webPreviewNextStep();
+#endif
   void showWebPreviewChanged();
 
+  void clickTimeout();
+
 private:
   void setHandleXLimits();
   void updateSelection(const QPointF &pos);
-  QString selectionToString() const;
 
+  ChatView *_chatView;
   QString _idString;
   QAbstractItemModel *_model;
   QList<ChatLine *> _lines;
-  bool _singleBufferScene;
+  BufferId _singleBufferId;
 
   // calls to QChatScene::sceneRect() are very expensive. As we manage the scenerect ourselves
   // we store the size in a member variable.
@@ -154,20 +182,33 @@ private:
   int _firstSelectionRow;
   bool _isSelecting;
 
-  bool _showWebPreview;
-
   QTimer _clickTimer;
+  ClickMode _clickMode;
+  QPointF _clickPos;
+  bool _clickHandled;
+  bool _leftButtonPressed;
+
+  bool _showWebPreview;
 
+#ifdef HAVE_WEBKIT
   struct WebPreview {
+    enum PreviewState {
+      NoPreview,
+      NewPreview,
+      DelayPreview,
+      ShowPreview,
+      HidePreview
+    };
     ChatItem *parentItem;
     QGraphicsItem *previewItem;
     QString url;
     QRectF urlRect;
-    QTimer delayTimer;
-    QTimer deleteTimer;
-    WebPreview() : parentItem(0), previewItem(0) {}
+    PreviewState previewState;
+    QTimer timer;
+    WebPreview() : parentItem(0), previewItem(0), previewState(NoPreview) {}
   };
   WebPreview webPreview;
+#endif // HAVE_WEBKIT
 };
 
 #endif