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Unified Diff: Source/core/platform/chromium/PopupListBox.h

Issue 16077002: Move popup menu code from core/platform to WebKit/chromium/src. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 7 years, 7 months ago
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Index: Source/core/platform/chromium/PopupListBox.h
diff --git a/Source/core/platform/chromium/PopupListBox.h b/Source/core/platform/chromium/PopupListBox.h
deleted file mode 100644
index 3fab2ea9601f3c60a91a396d99d34db5d6073b8a..0000000000000000000000000000000000000000
--- a/Source/core/platform/chromium/PopupListBox.h
+++ /dev/null
@@ -1,303 +0,0 @@
-/*
- * Copyright (c) 2011, Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef PopupListBox_h
-#define PopupListBox_h
-
-#include "core/dom/Node.h"
-#include "core/platform/chromium/FramelessScrollView.h"
-#include "core/platform/text/TextDirection.h"
-#include "wtf/text/WTFString.h"
-
-namespace WebCore {
-
-typedef unsigned long long TimeStamp;
-
-class Font;
-class GraphicsContext;
-class IntRect;
-class PlatformKeyboardEvent;
-class PlatformMouseEvent;
-class PlatformGestureEvent;
-class PlatformTouchEvent;
-class PlatformWheelEvent;
-class PopupMenuClient;
-
-struct PopupContainerSettings {
- // Whether the PopupMenuClient should be told to change its text when a
- // new item is selected by using the arrow keys.
- bool setTextOnIndexChange;
-
- // Whether the selection should be accepted when the popup menu is
- // closed (through ESC being pressed or the focus going away).
- // Note that when TAB is pressed, the selection is always accepted
- // regardless of this setting.
- bool acceptOnAbandon;
-
- // Whether we should move the selection to the first/last item when
- // the user presses down/up arrow keys and the last/first item is
- // selected.
- bool loopSelectionNavigation;
-
- // Whether we should restrict the width of the PopupListBox or not.
- // Autocomplete popups are restricted, combo-boxes (select tags) aren't.
- bool restrictWidthOfListBox;
-
- // If the device is a touch screen we increase the height of menu items
- // to make it easier to unambiguously touch them.
- bool deviceSupportsTouch;
-};
-
-class PopupContent {
-public:
- virtual void layout() = 0;
- virtual void setMaxHeight(int) = 0;
- virtual void setMaxWidthAndLayout(int) = 0;
- virtual int popupContentHeight() const = 0;
- virtual ~PopupContent() { };
-};
-
-// A container for the data for each menu item (e.g. represented by <option>
-// or <optgroup> in a <select> widget) and is used by PopupListBox.
-struct PopupItem {
- enum Type {
- TypeOption,
- TypeGroup,
- TypeSeparator
- };
-
- PopupItem(const String& label, Type type)
- : label(label)
- , type(type)
- , yOffset(0)
- {
- }
- String label;
- Type type;
- int yOffset; // y offset of this item, relative to the top of the popup.
- TextDirection textDirection;
- bool hasTextDirectionOverride;
- bool enabled;
-};
-
-// This class uses WebCore code to paint and handle events for a drop-down list
-// box ("combobox" on Windows).
-class PopupListBox : public FramelessScrollView, public PopupContent {
-public:
- static PassRefPtr<PopupListBox> create(PopupMenuClient* client, const PopupContainerSettings& settings)
- {
- return adoptRef(new PopupListBox(client, settings));
- }
-
- // FramelessScrollView
- virtual void paint(GraphicsContext*, const IntRect&) OVERRIDE;
- virtual bool handleMouseDownEvent(const PlatformMouseEvent&) OVERRIDE;
- virtual bool handleMouseMoveEvent(const PlatformMouseEvent&) OVERRIDE;
- virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&) OVERRIDE;
- virtual bool handleWheelEvent(const PlatformWheelEvent&) OVERRIDE;
- virtual bool handleKeyEvent(const PlatformKeyboardEvent&) OVERRIDE;
- virtual bool handleTouchEvent(const PlatformTouchEvent&) OVERRIDE;
- virtual bool handleGestureEvent(const PlatformGestureEvent&) OVERRIDE;
-
- // ScrollView
- virtual HostWindow* hostWindow() const OVERRIDE;
-
- // PopupListBox methods
-
- // Hides the popup.
- void hidePopup();
-
- // Updates our internal list to match the client.
- void updateFromElement();
-
- // Frees any allocated resources used in a particular popup session.
- void clear();
-
- // Sets the index of the option that is displayed in the <select> widget in the page
- void setOriginalIndex(int);
-
- // Gets the index of the item that the user is currently moused over or has
- // selected with the keyboard. This is not the same as the original index,
- // since the user has not yet accepted this input.
- int selectedIndex() const { return m_selectedIndex; }
-
- // Moves selection down/up the given number of items, scrolling if necessary.
- // Positive is down. The resulting index will be clamped to the range
- // [0, numItems), and non-option items will be skipped.
- void adjustSelectedIndex(int delta);
-
- // Returns the number of items in the list.
- int numItems() const { return static_cast<int>(m_items.size()); }
-
- void setBaseWidth(int width) { m_baseWidth = std::min(m_maxWindowWidth, width); }
-
- // Computes the size of widget and children.
- virtual void layout() OVERRIDE;
-
- // Returns whether the popup wants to process events for the passed key.
- bool isInterestedInEventForKey(int keyCode);
-
- // Gets the height of a row.
- int getRowHeight(int index);
-
- virtual void setMaxHeight(int maxHeight) OVERRIDE { m_maxHeight = maxHeight; }
-
- void setMaxWidth(int maxWidth) { m_maxWindowWidth = maxWidth; }
-
- virtual void setMaxWidthAndLayout(int) OVERRIDE;
-
- void disconnectClient() { m_popupClient = 0; }
-
- const Vector<PopupItem*>& items() const { return m_items; }
-
- virtual int popupContentHeight() const OVERRIDE;
-
- static const int defaultMaxHeight;
-
-private:
- friend class PopupContainer;
- friend class RefCounted<PopupListBox>;
-
- PopupListBox(PopupMenuClient*, const PopupContainerSettings&);
-
- virtual ~PopupListBox()
- {
- clear();
- }
-
- // Closes the popup
- void abandon();
-
- // Returns true if the selection can be changed to index.
- // Disabled items, or labels cannot be selected.
- bool isSelectableItem(int index);
-
- // Select an index in the list, scrolling if necessary.
- void selectIndex(int index);
-
- // Accepts the selected index as the value to be displayed in the <select>
- // widget on the web page, and closes the popup. Returns true if index is
- // accepted.
- bool acceptIndex(int index);
-
- // Clears the selection (so no row appears selected).
- void clearSelection();
-
- // Scrolls to reveal the given index.
- void scrollToRevealRow(int index);
- void scrollToRevealSelection() { scrollToRevealRow(m_selectedIndex); }
-
- // Invalidates the row at the given index.
- void invalidateRow(int index);
-
- // Get the bounds of a row.
- IntRect getRowBounds(int index);
-
- // Converts a point to an index of the row the point is over
- int pointToRowIndex(const IntPoint&);
-
- // Paint an individual row
- void paintRow(GraphicsContext*, const IntRect&, int rowIndex);
-
- // Test if the given point is within the bounds of the popup window.
- bool isPointInBounds(const IntPoint&);
-
- // Called when the user presses a text key. Does a prefix-search of the items.
- void typeAheadFind(const PlatformKeyboardEvent&);
-
- // Returns the font to use for the given row
- Font getRowFont(int index);
-
- // Moves the selection down/up one item, taking care of looping back to the
- // first/last element if m_loopSelectionNavigation is true.
- void selectPreviousRow();
- void selectNextRow();
-
- // The settings that specify the behavior for this Popup window.
- PopupContainerSettings m_settings;
-
- // This is the index of the item marked as "selected" - i.e. displayed in
- // the widget on the page.
- int m_originalIndex;
-
- // This is the index of the item that the user is hovered over or has
- // selected using the keyboard in the list. They have not confirmed this
- // selection by clicking or pressing enter yet however.
- int m_selectedIndex;
-
- // If >= 0, this is the index we should accept if the popup is "abandoned".
- // This is used for keyboard navigation, where we want the
- // selection to change immediately, and is only used if the settings
- // acceptOnAbandon field is true.
- int m_acceptedIndexOnAbandon;
-
- // This is the number of rows visible in the popup. The maximum number
- // visible at a time is defined as being kMaxVisibleRows. For a scrolled
- // popup, this can be thought of as the page size in data units.
- int m_visibleRows;
-
- // Our suggested width, not including scrollbar.
- int m_baseWidth;
-
- // The maximum height we can be without being off-screen.
- int m_maxHeight;
-
- // A list of the options contained within the <select>
- Vector<PopupItem*> m_items;
-
- // The <select> PopupMenuClient that opened us.
- PopupMenuClient* m_popupClient;
-
- // The scrollbar which has mouse capture. Mouse events go straight to this
- // if not null.
- RefPtr<Scrollbar> m_capturingScrollbar;
-
- // The last scrollbar that the mouse was over. Used for mouseover highlights.
- RefPtr<Scrollbar> m_lastScrollbarUnderMouse;
-
- // The string the user has typed so far into the popup. Used for typeAheadFind.
- String m_typedString;
-
- // The char the user has hit repeatedly. Used for typeAheadFind.
- UChar m_repeatingChar;
-
- // The last time the user hit a key. Used for typeAheadFind.
- TimeStamp m_lastCharTime;
-
- // If width exeeds screen width, we have to clip it.
- int m_maxWindowWidth;
-
- // To forward last mouse release event.
- RefPtr<Node> m_focusedNode;
-};
-
-} // namespace WebCore
-
-#endif
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