Popup changes

chrome/browser/views/panel_controller.h

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_VIEWS_PANEL_CONTROLLER_H_
+#define CHROME_BROWSER_VIEWS_PANEL_CONTROLLER_H_
+
+#include <gtk/gtk.h>
+
+#include "views/controls/button/button.h"
+
+class BrowserWindowGtk;
+typedef unsigned long XID;
+
+namespace views {
+class ImageButton;
+class Label;
+class MouseEvent;
+class WidgetGtk;
+}
+
+// Controls interactions with the WM for popups / panels.
+class PanelController : public views::ButtonListener {
+ public:
+  explicit PanelController(BrowserWindowGtk* browser_window);
+  virtual ~PanelController() {}
+
+  bool TitleMousePressed(const views::MouseEvent& event);
+  void TitleMouseReleased(const views::MouseEvent& event, bool canceled);
+  bool TitleMouseDragged(const views::MouseEvent& event);
+  bool PanelClientEvent(GdkEventClient* event);
+
+  void UpdateTitleBar();
+  void Close();
+  // ButtonListener methods.
+  virtual void ButtonPressed(views::Button* sender);
+
+ private:
+  class TitleContentView : public views::View {
+   public:
+    explicit TitleContentView(PanelController* panelController);
+    virtual ~TitleContentView() {}
+    virtual void Layout();
+    virtual bool OnMousePressed(const views::MouseEvent& event);
+    virtual void OnMouseReleased(const views::MouseEvent& event, bool canceled);
+    virtual bool OnMouseDragged(const views::MouseEvent& event);
+
+    views::Label* title_label() { return title_label_; }
+    views::ImageButton* close_button() { return close_button_; }
+
+   private:
+    views::Label* title_label_;
+    views::ImageButton* close_button_;
+    PanelController* panel_controller_;
+    DISALLOW_COPY_AND_ASSIGN(TitleContentView);
+  };
+
+  // Dispatches client events to PanelController instances
+  static bool OnPanelClientEvent(
+      GtkWidget* widget,
+      GdkEventClient* event,
+      PanelController* panel_controller);
+
+  // Browser window containing content.
+  BrowserWindowGtk* browser_window_;
+  // Gtk object for content.
+  GtkWindow* panel_;
+  // X id for content.
+  XID panel_xid_;
+
+  // Views object representing title.
+  views::WidgetGtk* title_window_;
+  // Gtk object representing title.
+  GtkWidget* title_;
+  // X id representing title.
+  XID title_xid_;
+
+  // Views object, holds title and close button.
+  TitleContentView* title_content_;
+
+  // Is the panel expanded or collapsed?
+  bool expanded_;
+
+  // Is the mouse button currently down?
+  bool mouse_down_;
+
+  // Cursor's absolute position when the mouse button was pressed.
+  int mouse_down_abs_x_;
+  int mouse_down_abs_y_;
+
+  // Cursor's offset from the upper-left corner of the titlebar when the
+  // mouse button was pressed.
+  int mouse_down_offset_x_;
+  int mouse_down_offset_y_;
+
+  // Is the titlebar currently being dragged?  That is, has the cursor
+  // moved more than kDragThreshold away from its starting position?
+  bool dragging_;
+
+  DISALLOW_COPY_AND_ASSIGN(PanelController);
+};
+
+#endif  // CHROME_BROWSER_PANEL_CONTROLLER_H_
+