gecko-dev/dom/base/nsISelectionController.idl
Masayuki Nakano 3bd4299525 Bug 1393348 - part2: nsISelectionController::SELECTION_* should be sequential integer values r=smaug
nsISelectionController::SELECTION_* are declared as bit-mask.  However, no
methods of nsISelectionController treat them as bit-mask and these
values need a switch statement in nsFrameSelection to convert SelectionType to
array index of nsFrameSelection::mDOMSelections because it's too big to create
an array to do it.  Additionally, this conversion appears profile of
attachment 8848015.

So, now, we should declare these values as sequential integer values.

However, only nsTextFrame uses these values as bit-mask.  Therefore, this patch
adds new type, SelectionTypeMask and creates new inline method,
ToSelectionTypeMask(SelectionType), to retrieve mask value for a SelectionType.

MozReview-Commit-ID: 5Za8mA6iu4

--HG--
extra : rebase_source : 86617c1f5fa23166458f4353cb834f9e7c5b131b
2017-08-24 19:14:04 +09:00

358 lines
14 KiB
Plaintext

/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#include "nsISelectionDisplay.idl"
%{C++
typedef short SelectionRegion;
namespace mozilla {
namespace dom {
class Selection;
} // namespace dom
} // namespace mozilla
%}
interface nsIContent;
interface nsIDOMNode;
interface nsISelection;
interface nsISelectionDisplay;
[ptr] native SelectionPtr(mozilla::dom::Selection);
[scriptable, uuid(3801c9d4-8e69-4bfc-9edb-b58278621f8f)]
interface nsISelectionController : nsISelectionDisplay
{
// RawSelectionType values:
const short SELECTION_NONE = 0;
const short SELECTION_NORMAL = 1;
const short SELECTION_SPELLCHECK = 2;
const short SELECTION_IME_RAWINPUT = 3;
const short SELECTION_IME_SELECTEDRAWTEXT = 4;
const short SELECTION_IME_CONVERTEDTEXT = 5;
const short SELECTION_IME_SELECTEDCONVERTEDTEXT = 6;
// For accessibility API usage
const short SELECTION_ACCESSIBILITY = 7;
const short SELECTION_FIND = 8;
const short SELECTION_URLSECONDARY = 9;
const short SELECTION_URLSTRIKEOUT = 10;
const short NUM_SELECTIONTYPES = 11;
// SelectionRegion values:
const short SELECTION_ANCHOR_REGION = 0;
const short SELECTION_FOCUS_REGION = 1;
const short SELECTION_WHOLE_SELECTION = 2;
const short NUM_SELECTION_REGIONS = 3;
const short SELECTION_OFF = 0;
const short SELECTION_HIDDEN =1;//>HIDDEN displays selection
const short SELECTION_ON = 2;
const short SELECTION_DISABLED = 3;
const short SELECTION_ATTENTION = 4;
/**
* SetDisplaySelection will set the display mode for the selection. OFF,ON,DISABLED
*/
void setDisplaySelection(in short toggle);
/**
* GetDisplaySelection will get the display mode for the selection. OFF,ON,DISABLED
*/
short getDisplaySelection();
/**
* GetSelection will return the selection that the presentation
* shell may implement.
*
* @param aType This will hold the type of selection. This value must be one
* of RawSelectionType values.
* @param _return will hold the return value
*/
nsISelection getSelection(in short type);
/**
* Return the selection object corresponding to a selection type.
*/
[noscript,nostdcall,notxpcom] SelectionPtr getDOMSelection(in short aType);
const short SCROLL_SYNCHRONOUS = 1<<1;
const short SCROLL_FIRST_ANCESTOR_ONLY = 1<<2;
const short SCROLL_CENTER_VERTICALLY = 1<<4;
const short SCROLL_OVERFLOW_HIDDEN = 1<<5;
const short SCROLL_FOR_CARET_MOVE = 1<<6;
/**
* ScrollSelectionIntoView scrolls a region of the selection,
* so that it is visible in the scrolled view.
*
* @param aType the selection to scroll into view. This value must be one
* of RawSelectionType values.
* @param aRegion the region inside the selection to scroll into view. //SelectionRegion
* @param aFlags the scroll flags. Valid bits include:
* SCROLL_SYNCHRONOUS: when set, scrolls the selection into view
* before returning. If not set, posts a request which is processed
* at some point after the method returns.
* SCROLL_FIRST_ANCESTOR_ONLY: if set, only the first ancestor will be scrolled
* into view.
* SCROLL_OVERFLOW_HIDDEN: if set, scrolls even if the overflow is specified
* as hidden.
* SCROLL_FOR_CARET_MOVE: set to indicate whether scrolling is in response
* to the caret being moved. Does not affect behavior (used for telemetry
* purposes only).
*
* Note that if isSynchronous is true, then this might flush the pending
* reflow. It's dangerous for some objects. See bug 418470 comment 12.
*/
void scrollSelectionIntoView(in short type, in short region, in short flags);
/**
* RepaintSelection repaints the selection specified by aType.
*
* @param aType specifies the selection to repaint.
*/
void repaintSelection(in short type);
/**
* Set the caret as enabled or disabled. An enabled caret will
* draw or blink when made visible. A disabled caret will never show up.
* Can be called any time.
* @param aEnable PR_TRUE to enable caret. PR_FALSE to disable.
* @return always NS_OK
*/
void setCaretEnabled(in boolean enabled);
/**
* Set the caret readonly or not. An readonly caret will
* draw but not blink when made visible.
* @param aReadOnly PR_TRUE to enable caret. PR_FALSE to disable.
* @return always NS_OK
*/
void setCaretReadOnly(in boolean readOnly);
/**
* Gets the current state of the caret.
* @param aEnabled [OUT] set to the current caret state, as set by SetCaretEnabled
* @return if aOutEnabled==null, returns NS_ERROR_INVALID_ARG
* else NS_OK
*/
boolean getCaretEnabled();
/**
* This is true if the caret is enabled, visible, and currently blinking.
* This is still true when the caret is enabled, visible, but in its "off"
* blink cycle.
*/
readonly attribute boolean caretVisible;
/**
* Show the caret even in selections. By default the caret is hidden unless the
* selection is collapsed. Use this function to show the caret even in selections.
* @param aVisibility PR_TRUE to show the caret in selections. PR_FALSE to hide.
* @return always NS_OK
*/
void setCaretVisibilityDuringSelection(in boolean visibility);
/** CharacterMove will move the selection one character forward/backward in the document.
* this will also have the effect of collapsing the selection if the aExtend = PR_FALSE
* the "point" of selection that is extended is considered the "focus" point.
* or the last point adjusted by the selection.
* @param aForward forward or backward if PR_FALSE
* @param aExtend should it collapse the selection of extend it?
*/
void characterMove(in boolean forward, in boolean extend);
/** PhysicalMove will move the selection one "unit" in a given direction
* within the document.
* this will also have the effect of collapsing the selection if the aExtend = PR_FALSE
* the "point" of selection that is extended is considered the "focus" point.
* or the last point adjusted by the selection.
* @param aDirection
* @param aAmount character/line; word/lineBoundary
* @param aExtend should it collapse the selection of extend it?
*/
void physicalMove(in short direction, in short amount, in boolean extend);
/**
* nsFrameSelection::PhysicalMove depends on the ordering of these values;
* do not change without checking there!
*/
const short MOVE_LEFT = 0;
const short MOVE_RIGHT = 1;
const short MOVE_UP = 2;
const short MOVE_DOWN = 3;
/**
* CharacterExtendForDelete will extend the selection one character cell
* forward in the document.
* this method is used internally for handling del key.
*/
[noscript] void characterExtendForDelete();
/**
* CharacterExtendForBackspace will extend the selection one character cell
* backward in the document.
* this method is used internally for handling backspace key only when we're
* after UTF-16 surrogates.
*/
[noscript] void characterExtendForBackspace();
/** WordMove will move the selection one word forward/backward in the document.
* this will also have the effect of collapsing the selection if the aExtend = PR_FALSE
* the "point" of selection that is extended is considered the "focus" point.
* or the last point adjusted by the selection.
* @param aForward forward or backward if PR_FALSE
* @param aExtend should it collapse the selection of extend it?
*/
void wordMove(in boolean forward, in boolean extend);
/** wordExtendForDelete will extend the selection one word forward/backward in the document.
* this method is used internally for handling ctrl[option]-backspace and ctrl[option]-del.
* @param aForward forward or backward if PR_FALSE
*/
[noscript] void wordExtendForDelete(in boolean forward);
/** LineMove will move the selection one line forward/backward in the document.
* this will also have the effect of collapsing the selection if the aExtend = PR_FALSE
* the "point" of selection that is extended is considered the "focus" point.
* or the last point adjusted by the selection.
* @param aForward forward or backward if PR_FALSE
* @param aExtend should it collapse the selection of extend it?
*/
void lineMove(in boolean forward, in boolean extend);
/** IntraLineMove will move the selection to the front of the line or end of the line
* in the document.
* this will also have the effect of collapsing the selection if the aExtend = PR_FALSE
* the "point" of selection that is extended is considered the "focus" point.
* or the last point adjusted by the selection.
* @param aForward forward or backward if PR_FALSE
* @param aExtend should it collapse the selection of extend it?
*/
void intraLineMove(in boolean forward, in boolean extend);
/** PageMove will move the selection one page forward/backward in the document.
* this will also have the effect of collapsing the selection if the aExtend = PR_FALSE
* the "point" of selection that is extended is considered the "focus" point.
* or the last point adjusted by the selection.
* @param aForward forward or backward if PR_FALSE
* @param aExtend should it collapse the selection of extend it?
*/
void pageMove(in boolean forward, in boolean extend);
/** CompleteScroll will move page view to the top or bottom of the document
* @param aForward forward or backward if PR_FALSE
*/
void completeScroll(in boolean forward);
/** CompleteMove will move page view to the top or bottom of the document
* this will also have the effect of collapsing the selection if the aExtend = PR_FALSE
* the "point" of selection that is extended is considered the "focus" point.
* or the last point adjusted by the selection.
* @param aForward forward or backward if PR_FALSE
* @param aExtend should it collapse the selection of extend it?
*/
void completeMove(in boolean forward, in boolean extend);
/** ScrollPage will scroll the page without affecting the selection.
* @param aForward scroll forward or backwards in selection
*/
void scrollPage(in boolean forward);
/** ScrollLine will scroll line up or down dependent on the boolean
* @param aForward scroll forward or backwards in selection
*/
void scrollLine(in boolean forward);
/** ScrollCharacter will scroll right or left dependent on the boolean
* @param aRight if true will scroll right. if not will scroll left.
*/
void scrollCharacter(in boolean right);
/** SelectAll will select the whole page
*/
void selectAll();
/** CheckVisibility will return true if textnode and offsets are actually rendered
* in the current precontext.
* @param aNode textNode to test
* @param aStartOffset offset in dom to first char of textnode to test
* @param aEndOffset offset in dom to last char of textnode to test
* @param aReturnBool boolean returned TRUE if visible FALSE if not
*/
boolean checkVisibility(in nsIDOMNode node, in short startOffset, in short endOffset);
[noscript,nostdcall] boolean checkVisibilityContent(in nsIContent node, in short startOffset, in short endOffset);
};
%{ C++
#define NS_ISELECTIONCONTROLLER_CID \
{ 0x513b9460, 0xd56a, 0x4c4e, \
{ 0xb6, 0xf9, 0x0b, 0x8a, 0xe4, 0x37, 0x2a, 0x3b }}
namespace mozilla {
// RawSelectionType should be used to store nsISelectionController::SELECTION_*.
typedef short RawSelectionType;
// SelectionTypeMask should be used to store bit-mask of selection types.
// The value can be retrieved with ToSelectionTypeMask() and checking if
// a selection type is in a mask with |SelectionType & SelectionTypeMask|.
typedef uint16_t SelectionTypeMask;
// SelectionType should be used in internal handling because of type safe.
enum class SelectionType : RawSelectionType
{
eInvalid = -1,
eNone = nsISelectionController::SELECTION_NONE,
eNormal = nsISelectionController::SELECTION_NORMAL,
eSpellCheck = nsISelectionController::SELECTION_SPELLCHECK,
eIMERawClause = nsISelectionController::SELECTION_IME_RAWINPUT,
eIMESelectedRawClause = nsISelectionController::SELECTION_IME_SELECTEDRAWTEXT,
eIMEConvertedClause = nsISelectionController::SELECTION_IME_CONVERTEDTEXT,
eIMESelectedClause =
nsISelectionController::SELECTION_IME_SELECTEDCONVERTEDTEXT,
eAccessibility = nsISelectionController::SELECTION_ACCESSIBILITY,
eFind = nsISelectionController::SELECTION_FIND,
eURLSecondary = nsISelectionController::SELECTION_URLSECONDARY,
eURLStrikeout = nsISelectionController::SELECTION_URLSTRIKEOUT,
};
// Using anonymous enum to define constants because these constants may be
// used at defining fixed size array in some header files (e.g.,
// nsFrameSelection.h). So, the values needs to be defined here, but we cannot
// use static/const even with extern since it causes failing to link or
// initializes them after such headers.
enum : size_t
{
// kSelectionTypeCount is number of SelectionType.
kSelectionTypeCount = nsISelectionController::NUM_SELECTIONTYPES,
};
// kPresentSelectionTypes is selection types which may be displayed.
// I.e., selection types except eNone.
static const SelectionType kPresentSelectionTypes[] = {
SelectionType::eNormal,
SelectionType::eSpellCheck,
SelectionType::eIMERawClause,
SelectionType::eIMESelectedRawClause,
SelectionType::eIMEConvertedClause,
SelectionType::eIMESelectedClause,
SelectionType::eAccessibility,
SelectionType::eFind,
SelectionType::eURLSecondary,
SelectionType::eURLStrikeout,
};
// Please include mozilla/dom/Selection.h for the following APIs.
const char* ToChar(SelectionType aSelectionType);
inline bool IsValidRawSelectionType(RawSelectionType aRawSelectionType);
inline SelectionType ToSelectionType(RawSelectionType aRawSelectionType);
inline RawSelectionType ToRawSelectionType(SelectionType aSelectionType);
inline SelectionTypeMask ToSelectionTypeMask(SelectionType aSelectionType);
} // namespace mozilla
%}