gecko-dev/dom/events/ContentEventHandler.h
Nathan Froyd 01583602a9 Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout.  The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.

CLOSED TREE makes big refactorings like this a piece of cake.

 # The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
    xargs perl -p -i -e '
 s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
 s/nsRefPtr ?</RefPtr</g;   # handle declarations and variables
'

 # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h

 # Handle nsRefPtr.h itself, a couple places that define constructors
 # from nsRefPtr, and code generators specially.  We do this here, rather
 # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
 # things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
     mfbt/nsRefPtr.h \
     xpcom/glue/nsCOMPtr.h \
     xpcom/base/OwningNonNull.h \
     ipc/ipdl/ipdl/lower.py \
     ipc/ipdl/ipdl/builtin.py \
     dom/bindings/Codegen.py \
     python/lldbutils/lldbutils/utils.py

 # In our indiscriminate substitution above, we renamed
 # nsRefPtrGetterAddRefs, the class behind getter_AddRefs.  Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
    xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'

if [ -d .git ]; then
    git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
    hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi

--HG--
rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 01:24:48 -04:00

164 lines
7.2 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_ContentEventHandler_h_
#define mozilla_ContentEventHandler_h_
#include "mozilla/EventForwards.h"
#include "mozilla/dom/Selection.h"
#include "nsCOMPtr.h"
#include "nsRange.h"
class nsPresContext;
struct nsRect;
namespace mozilla {
enum LineBreakType
{
LINE_BREAK_TYPE_NATIVE,
LINE_BREAK_TYPE_XP
};
/*
* Query Content Event Handler
* ContentEventHandler is a helper class for EventStateManager.
* The platforms request some content informations, e.g., the selected text,
* the offset of the selected text and the text for specified range.
* This class answers to NS_QUERY_* events from actual contents.
*/
class MOZ_STACK_CLASS ContentEventHandler
{
public:
typedef dom::Selection Selection;
explicit ContentEventHandler(nsPresContext* aPresContext);
// Handle aEvent in the current process.
nsresult HandleQueryContentEvent(WidgetQueryContentEvent* aEvent);
// eQuerySelectedText event handler
nsresult OnQuerySelectedText(WidgetQueryContentEvent* aEvent);
// eQueryTextContent event handler
nsresult OnQueryTextContent(WidgetQueryContentEvent* aEvent);
// eQueryCaretRect event handler
nsresult OnQueryCaretRect(WidgetQueryContentEvent* aEvent);
// eQueryTextRect event handler
nsresult OnQueryTextRect(WidgetQueryContentEvent* aEvent);
// eQueryEditorRect event handler
nsresult OnQueryEditorRect(WidgetQueryContentEvent* aEvent);
// eQueryContentState event handler
nsresult OnQueryContentState(WidgetQueryContentEvent* aEvent);
// eQuerySelectionAsTransferable event handler
nsresult OnQuerySelectionAsTransferable(WidgetQueryContentEvent* aEvent);
// eQueryCharacterAtPoint event handler
nsresult OnQueryCharacterAtPoint(WidgetQueryContentEvent* aEvent);
// eQueryDOMWidgetHittest event handler
nsresult OnQueryDOMWidgetHittest(WidgetQueryContentEvent* aEvent);
// NS_SELECTION_* event
nsresult OnSelectionEvent(WidgetSelectionEvent* aEvent);
protected:
nsPresContext* mPresContext;
nsCOMPtr<nsIPresShell> mPresShell;
RefPtr<Selection> mSelection;
RefPtr<nsRange> mFirstSelectedRange;
nsCOMPtr<nsIContent> mRootContent;
nsresult Init(WidgetQueryContentEvent* aEvent);
nsresult Init(WidgetSelectionEvent* aEvent);
nsresult InitBasic();
nsresult InitCommon();
public:
// FlatText means the text that is generated from DOM tree. The BR elements
// are replaced to native linefeeds. Other elements are ignored.
// Get the offset in FlatText of the range. (also used by IMEContentObserver)
static nsresult GetFlatTextOffsetOfRange(nsIContent* aRootContent,
nsINode* aNode,
int32_t aNodeOffset,
uint32_t* aOffset,
LineBreakType aLineBreakType);
static nsresult GetFlatTextOffsetOfRange(nsIContent* aRootContent,
nsRange* aRange,
uint32_t* aOffset,
LineBreakType aLineBreakType);
// Computes the native text length between aStartOffset and aEndOffset of
// aContent. Currently, this method supports only text node or br element
// for aContent.
static uint32_t GetNativeTextLength(nsIContent* aContent,
uint32_t aStartOffset,
uint32_t aEndOffset);
// Get the native text length of a content node excluding any children
static uint32_t GetNativeTextLength(nsIContent* aContent,
uint32_t aMaxLength = UINT32_MAX);
// Get the text length of a given range of a content node in
// the given line break type.
static uint32_t GetTextLengthInRange(nsIContent* aContent,
uint32_t aXPStartOffset,
uint32_t aXPEndOffset,
LineBreakType aLineBreakType);
protected:
static uint32_t GetTextLength(nsIContent* aContent,
LineBreakType aLineBreakType,
uint32_t aMaxLength = UINT32_MAX);
static LineBreakType GetLineBreakType(WidgetQueryContentEvent* aEvent);
static LineBreakType GetLineBreakType(WidgetSelectionEvent* aEvent);
static LineBreakType GetLineBreakType(bool aUseNativeLineBreak);
// Returns focused content (including its descendant documents).
nsIContent* GetFocusedContent();
// Returns true if the content is a plugin host.
bool IsPlugin(nsIContent* aContent);
// QueryContentRect() sets the rect of aContent's frame(s) to aEvent.
nsresult QueryContentRect(nsIContent* aContent,
WidgetQueryContentEvent* aEvent);
// Make the DOM range from the offset of FlatText and the text length.
// If aExpandToClusterBoundaries is true, the start offset and the end one are
// expanded to nearest cluster boundaries.
nsresult SetRangeFromFlatTextOffset(nsRange* aRange,
uint32_t aOffset,
uint32_t aLength,
LineBreakType aLineBreakType,
bool aExpandToClusterBoundaries,
uint32_t* aNewOffset = nullptr);
// If the aRange isn't in text node but next to a text node, this method
// modifies it in the text node. Otherwise, not modified.
nsresult AdjustCollapsedRangeMaybeIntoTextNode(nsRange* aCollapsedRange);
// Find the first frame for the range and get the start offset in it.
nsresult GetStartFrameAndOffset(const nsRange* aRange,
nsIFrame*& aFrame,
int32_t& aOffsetInFrame);
// Convert the frame relative offset to the root frame of the root presContext
// relative offset.
nsresult ConvertToRootRelativeOffset(nsIFrame* aFrame,
nsRect& aRect);
// Expand aXPOffset to the nearest offset in cluster boundary. aForward is
// true, it is expanded to forward.
nsresult ExpandToClusterBoundary(nsIContent* aContent, bool aForward,
uint32_t* aXPOffset);
typedef nsTArray<mozilla::FontRange> FontRangeArray;
static void AppendFontRanges(FontRangeArray& aFontRanges,
nsIContent* aContent,
int32_t aBaseOffset,
int32_t aXPStartOffset,
int32_t aXPEndOffset,
LineBreakType aLineBreakType);
static nsresult GenerateFlatFontRanges(nsRange* aRange,
FontRangeArray& aFontRanges,
uint32_t& aLength,
LineBreakType aLineBreakType);
};
} // namespace mozilla
#endif // mozilla_ContentEventHandler_h_