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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
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*
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* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
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* The Initial Developer of the Original Code is
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* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
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* Contributor(s):
*
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nsIImageControlFrame.h"
#include "nsImageFrame.h"
#include "nsIFormControlFrame.h"
#include "nsIFormControl.h"
#include "nsHTMLParts.h"
#include "nsIRenderingContext.h"
#include "nsPresContext.h"
#include "nsIPresShell.h"
#include "nsStyleContext.h"
#include "nsLeafFrame.h"
#include "nsCSSRendering.h"
#include "nsISupports.h"
#include "nsHTMLAtoms.h"
#include "nsIDeviceContext.h"
#include "nsIFontMetrics.h"
#include "nsIImage.h"
#include "nsStyleConsts.h"
#include "nsFormControlFrame.h"
#include "nsGUIEvent.h"
#include "nsLayoutAtoms.h"
#include "nsIServiceManager.h"
#include "nsContainerFrame.h"
#include "nsLayoutUtils.h"
#ifdef ACCESSIBILITY
#include "nsIAccessibilityService.h"
#endif
#define nsImageControlFrameSuper nsImageFrame
class nsImageControlFrame : public nsImageControlFrameSuper,
public nsIFormControlFrame,
public nsIImageControlFrame
{
public:
nsImageControlFrame(nsStyleContext* aContext);
~nsImageControlFrame();
virtual void Destroy();
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus);
virtual nsIAtom* GetType() const;
#ifdef ACCESSIBILITY
NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
#endif
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const {
return MakeFrameName(NS_LITERAL_STRING("ImageControl"), aResult);
}
#endif
NS_IMETHOD GetCursor(const nsPoint& aPoint,
nsIFrame::Cursor& aCursor);
// nsIFormContromFrame
virtual void SetFocus(PRBool aOn, PRBool aRepaint);
virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue);
virtual nsresult GetFormProperty(nsIAtom* aName, nsAString& aValue) const;
// nsIImageControlFrame
NS_IMETHOD GetClickedX(PRInt32* aX);
NS_IMETHOD GetClickedY(PRInt32* aY);
protected:
NS_IMETHOD_(nsrefcnt) AddRef(void);
NS_IMETHOD_(nsrefcnt) Release(void);
nsPoint mLastClickPoint;
};
nsImageControlFrame::nsImageControlFrame(nsStyleContext* aContext):
nsImageControlFrameSuper(aContext)
{
mLastClickPoint = nsPoint(0,0);
}
nsImageControlFrame::~nsImageControlFrame()
{
}
void
nsImageControlFrame::Destroy()
{
nsFormControlFrame::RegUnRegAccessKey(NS_STATIC_CAST(nsIFrame*, this), PR_FALSE);
nsImageControlFrameSuper::Destroy();
}
nsIFrame*
NS_NewImageControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsImageControlFrame(aContext);
}
// Frames are not refcounted, no need to AddRef
NS_IMETHODIMP
nsImageControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(NS_GET_IID(nsIFormControlFrame))) {
*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIImageControlFrame))) {
*aInstancePtr = (void*) ((nsIImageControlFrame*) this);
return NS_OK;
}
return nsImageControlFrameSuper::QueryInterface(aIID, aInstancePtr);
}
#ifdef ACCESSIBILITY
NS_IMETHODIMP nsImageControlFrame::GetAccessible(nsIAccessible** aAccessible)
{
nsCOMPtr<nsIAccessibilityService> accService = do_GetService("@mozilla.org/accessibilityService;1");
if (accService) {
if (mContent->Tag() == nsHTMLAtoms::button) {
return accService->CreateHTML4ButtonAccessible(NS_STATIC_CAST(nsIFrame*, this), aAccessible);
}
else if (mContent->Tag() == nsHTMLAtoms::input) {
return accService->CreateHTMLButtonAccessible(NS_STATIC_CAST(nsIFrame*, this), aAccessible);
}
}
return NS_ERROR_FAILURE;
}
#endif
nsrefcnt nsImageControlFrame::AddRef(void)
{
NS_WARNING("not supported");
return 1;
}
nsrefcnt nsImageControlFrame::Release(void)
{
NS_WARNING("not supported");
return 1;
}
nsIAtom*
nsImageControlFrame::GetType() const
{
return nsLayoutAtoms::imageControlFrame;
}
NS_METHOD
nsImageControlFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsImageControlFrame", aReflowState.reason);
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
if (aReflowState.reason == eReflowReason_Initial) {
nsFormControlFrame::RegUnRegAccessKey(NS_STATIC_CAST(nsIFrame*, this), PR_TRUE);
}
return nsImageControlFrameSuper::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
}
NS_METHOD
nsImageControlFrame::HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
// Don't do anything if the event has already been handled by someone
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
return NS_OK;
}
// do we have user-input style?
const nsStyleUserInterface* uiStyle = GetStyleUserInterface();
if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE || uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
if (mContent->HasAttr(kNameSpaceID_None, nsHTMLAtoms::disabled)) { // XXX cache disabled
return NS_OK;
}
*aEventStatus = nsEventStatus_eIgnore;
if (aEvent->eventStructType == NS_MOUSE_EVENT &&
aEvent->message == NS_MOUSE_BUTTON_UP &&
NS_STATIC_CAST(nsMouseEvent*, aEvent)->button == nsMouseEvent::eLeftButton) {
// Store click point for GetNamesValues
// Do this on MouseUp because the specs don't say and that's what IE does
nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, this);
TranslateEventCoords(pt, mLastClickPoint);
}
return nsImageControlFrameSuper::HandleEvent(aPresContext, aEvent,
aEventStatus);
}
void
nsImageControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
}
NS_IMETHODIMP
nsImageControlFrame::GetCursor(const nsPoint& aPoint,
nsIFrame::Cursor& aCursor)
{
// Use style defined cursor if one is provided, otherwise when
// the cursor style is "auto" we use the pointer cursor.
FillCursorInformationFromStyle(GetStyleUserInterface(), aCursor);
if (NS_STYLE_CURSOR_AUTO == aCursor.mCursor) {
aCursor.mCursor = NS_STYLE_CURSOR_POINTER;
}
return NS_OK;
}
nsresult
nsImageControlFrame::SetFormProperty(nsIAtom* aName,
const nsAString& aValue)
{
return NS_OK;
}
nsresult
nsImageControlFrame::GetFormProperty(nsIAtom* aName,
nsAString& aValue) const
{
aValue.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsImageControlFrame::GetClickedX(PRInt32* aX)
{
*aX = mLastClickPoint.x;
return NS_OK;
}
NS_IMETHODIMP
nsImageControlFrame::GetClickedY(PRInt32* aY)
{
*aY = mLastClickPoint.y;
return NS_OK;
}