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Mozilla/mozilla/embedding/components/find/src/nsWebBrowserFind.cpp
aaronl%netscape.com 7aa4d6dbcd Correct nsWebBrowserFind.cpp checkin to fix bustage using NS_NAMED_LITERAL_STRING 
git-svn-id: svn://10.0.0.236/trunk@130397 18797224-902f-48f8-a5cc-f745e15eee43
2002-09-25 00:56:34 +00:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Contributors:
* Conrad Carlen <ccarlen@netscape.com>
* Simon Fraser <sfraser@netscape.com>
* Akkana Peck <akkana@netscape.com>
*/
#include "nsWebBrowserFind.h"
// Only need this for NS_FIND_CONTRACTID,
// else we could use nsIDOMRange.h and nsIFind.h.
#include "nsFind.h"
#include "nsIComponentManager.h"
#include "nsIScriptGlobalObject.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIDOMWindow.h"
#include "nsIDOMWindowInternal.h"
#include "nsPIDOMWindow.h"
#include "nsIDocShell.h"
#include "nsIEnumerator.h"
#include "nsIDocShellTreeItem.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIEventStateManager.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIFocusController.h"
#include "nsISelectionController.h"
#include "nsISelection.h"
#include "nsReadableUtils.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIContent.h"
#include "nsContentCID.h"
#include "nsIServiceManager.h"
#include "nsIObserverService.h"
#include "nsISupportsPrimitives.h"
#if DEBUG
#include "nsIWebNavigation.h"
#include "nsXPIDLString.h"
#endif
static NS_DEFINE_IID(kRangeCID, NS_RANGE_CID);
//*****************************************************************************
// nsWebBrowserFind
//*****************************************************************************
nsWebBrowserFind::nsWebBrowserFind() :
mFindBackwards(PR_FALSE),
mWrapFind(PR_FALSE),
mEntireWord(PR_FALSE),
mMatchCase(PR_FALSE),
mSearchSubFrames(PR_TRUE),
mSearchParentFrames(PR_TRUE)
{
NS_INIT_ISUPPORTS();
}
nsWebBrowserFind::~nsWebBrowserFind()
{
}
NS_IMPL_ISUPPORTS2(nsWebBrowserFind, nsIWebBrowserFind, nsIWebBrowserFindInFrames);
/* boolean findNext (); */
NS_IMETHODIMP nsWebBrowserFind::FindNext(PRBool *outDidFind)
{
nsresult rv;
NS_ENSURE_ARG_POINTER(outDidFind);
*outDidFind = PR_FALSE;
NS_ENSURE_TRUE(CanFindNext(), NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIDOMWindow> searchFrame = do_QueryReferent(mCurrentSearchFrame);
NS_ENSURE_TRUE(searchFrame, NS_ERROR_NOT_INITIALIZED);
// first, if there's a "cmd_findagain" observer around, check to see if it
// wants to perform the find again command . If it performs the find again
// it will return true, in which case we exit ::FindNext() early.
// Otherwise, nsWebBrowserFind needs to perform the find again command itself
// this is used by nsTypeAheadFind, which controls find again when it was
// the last executed find in the current window.
nsCOMPtr<nsIObserverService> observerService(do_GetService("@mozilla.org/observer-service;1"));
if (observerService) {
nsCOMPtr<nsISupportsPRBool> didExecute =
do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
didExecute->SetData(PR_FALSE);
NS_NAMED_LITERAL_STRING(downString, "down");
NS_NAMED_LITERAL_STRING(upString, "up");
observerService->NotifyObservers(didExecute, "nsWebBrowserFind_FindAgain", mFindBackwards? upString.get(): downString.get());
didExecute->GetData(outDidFind);
if (*outDidFind)
return NS_OK;
}
// next, look in the current frame. If found, return.
rv = SearchInFrame(searchFrame, PR_FALSE, outDidFind);
if (NS_FAILED(rv)) return rv;
if (*outDidFind)
return OnFind(searchFrame); // we are done
// if we are not searching other frames, return
if (!mSearchSubFrames && !mSearchParentFrames)
return NS_OK;
nsCOMPtr<nsIDOMWindow> rootFrame = do_QueryReferent(mRootSearchFrame);
NS_ENSURE_TRUE(searchFrame, NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIDocShell> rootDocShell;
rv = GetDocShellFromWindow(rootFrame, getter_AddRefs(rootDocShell));
if (NS_FAILED(rv)) return rv;
PRInt32 enumDirection;
if (mFindBackwards)
enumDirection = nsIDocShell::ENUMERATE_BACKWARDS;
else
enumDirection = nsIDocShell::ENUMERATE_FORWARDS;
nsCOMPtr<nsISimpleEnumerator> docShellEnumerator;
rv = rootDocShell->GetDocShellEnumerator(nsIDocShellTreeItem::typeContent,
enumDirection, getter_AddRefs(docShellEnumerator));
if (NS_FAILED(rv)) return rv;
// remember where we started
nsCOMPtr<nsIDocShell> startingShell;
rv = GetDocShellFromWindow(searchFrame, getter_AddRefs(startingShell));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDocShellTreeItem> startingItem = do_QueryInterface(startingShell, &rv);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDocShellTreeItem> curItem;
// XXX We should avoid searching in frameset documents here.
// We also need to honour mSearchSubFrames and mSearchParentFrames.
PRBool hasMore, doFind = PR_FALSE;
while (NS_SUCCEEDED(docShellEnumerator->HasMoreElements(&hasMore)) && hasMore)
{
nsCOMPtr<nsISupports> curSupports;
rv = docShellEnumerator->GetNext(getter_AddRefs(curSupports));
if (NS_FAILED(rv)) break;
curItem = do_QueryInterface(curSupports, &rv);
if (NS_FAILED(rv)) break;
if (doFind)
{
searchFrame = do_GetInterface(curItem, &rv);
if (NS_FAILED(rv)) break;
OnStartSearchFrame(searchFrame);
rv = SearchInFrame(searchFrame, PR_FALSE, outDidFind);
if (NS_FAILED(rv)) return rv;
if (*outDidFind)
return OnFind(searchFrame); // we are done
OnEndSearchFrame(searchFrame);
}
if (curItem.get() == startingItem.get())
doFind = PR_TRUE; // start looking in frames after this one
};
if (!mWrapFind)
{
// remember where we left off
SetCurrentSearchFrame(searchFrame);
return NS_OK;
}
// From here on, we're wrapping, first through the other frames,
// then finally from the beginning of the starting frame back to
// the starting point.
// because nsISimpleEnumerator is totally lame and isn't resettable, I
// have to make a new one
docShellEnumerator = nsnull;
rv = rootDocShell->GetDocShellEnumerator(nsIDocShellTreeItem::typeContent,
enumDirection, getter_AddRefs(docShellEnumerator));
if (NS_FAILED(rv)) return rv;
while (NS_SUCCEEDED(docShellEnumerator->HasMoreElements(&hasMore)) && hasMore)
{
nsCOMPtr<nsISupports> curSupports;
rv = docShellEnumerator->GetNext(getter_AddRefs(curSupports));
if (NS_FAILED(rv)) break;
curItem = do_QueryInterface(curSupports, &rv);
if (NS_FAILED(rv)) break;
if (curItem.get() == startingItem.get())
{
rv = SearchInFrame(searchFrame, PR_TRUE, outDidFind);
if (NS_FAILED(rv)) return rv;
if (*outDidFind)
return OnFind(searchFrame); // we are done
break;
}
searchFrame = do_GetInterface(curItem, &rv);
if (NS_FAILED(rv)) break;
OnStartSearchFrame(searchFrame);
rv = SearchInFrame(searchFrame, PR_FALSE, outDidFind);
if (NS_FAILED(rv)) return rv;
if (*outDidFind)
return OnFind(searchFrame); // we are done
OnEndSearchFrame(searchFrame);
}
// remember where we left off
SetCurrentSearchFrame(searchFrame);
NS_ASSERTION(NS_SUCCEEDED(rv), "Something failed");
return rv;
}
/* attribute wstring searchString; */
NS_IMETHODIMP nsWebBrowserFind::GetSearchString(PRUnichar * *aSearchString)
{
NS_ENSURE_ARG_POINTER(aSearchString);
*aSearchString = ToNewUnicode(mSearchString);
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetSearchString(const PRUnichar * aSearchString)
{
mSearchString.Assign(aSearchString);
return NS_OK;
}
/* attribute boolean findBackwards; */
NS_IMETHODIMP nsWebBrowserFind::GetFindBackwards(PRBool *aFindBackwards)
{
NS_ENSURE_ARG_POINTER(aFindBackwards);
*aFindBackwards = mFindBackwards;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetFindBackwards(PRBool aFindBackwards)
{
mFindBackwards = aFindBackwards;
return NS_OK;
}
/* attribute boolean wrapFind; */
NS_IMETHODIMP nsWebBrowserFind::GetWrapFind(PRBool *aWrapFind)
{
NS_ENSURE_ARG_POINTER(aWrapFind);
*aWrapFind = mWrapFind;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetWrapFind(PRBool aWrapFind)
{
mWrapFind = aWrapFind;
return NS_OK;
}
/* attribute boolean entireWord; */
NS_IMETHODIMP nsWebBrowserFind::GetEntireWord(PRBool *aEntireWord)
{
NS_ENSURE_ARG_POINTER(aEntireWord);
*aEntireWord = mEntireWord;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetEntireWord(PRBool aEntireWord)
{
mEntireWord = aEntireWord;
return NS_OK;
}
/* attribute boolean matchCase; */
NS_IMETHODIMP nsWebBrowserFind::GetMatchCase(PRBool *aMatchCase)
{
NS_ENSURE_ARG_POINTER(aMatchCase);
*aMatchCase = mMatchCase;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetMatchCase(PRBool aMatchCase)
{
mMatchCase = aMatchCase;
return NS_OK;
}
void nsWebBrowserFind::SetSelectionAndScroll(nsIDOMRange* aRange,
nsISelectionController *aSelCon)
{
nsCOMPtr<nsISelection> selection;
if (!aSelCon) return;
aSelCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
getter_AddRefs(selection));
if (!selection) return;
selection->RemoveAllRanges();
selection->AddRange(aRange);
// Scroll if necessary to make the selection visible:
aSelCon->ScrollSelectionIntoView
(nsISelectionController::SELECTION_NORMAL,
nsISelectionController::SELECTION_FOCUS_REGION, PR_TRUE);
}
// Adapted from nsTextServicesDocument::GetDocumentContentRootNode
nsresult nsWebBrowserFind::GetRootNode(nsIDOMDocument* aDomDoc,
nsIDOMNode **aNode)
{
nsresult rv;
NS_ENSURE_ARG_POINTER(aNode);
*aNode = 0;
nsCOMPtr<nsIDOMHTMLDocument> htmlDoc = do_QueryInterface(aDomDoc);
if (htmlDoc)
{
// For HTML documents, the content root node is the body.
nsCOMPtr<nsIDOMHTMLElement> bodyElement;
rv = htmlDoc->GetBody(getter_AddRefs(bodyElement));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_ARG_POINTER(bodyElement);
return bodyElement->QueryInterface(NS_GET_IID(nsIDOMNode),
(void **)aNode);
}
// For non-HTML documents, the content root node will be the doc element.
nsCOMPtr<nsIDOMElement> docElement;
rv = aDomDoc->GetDocumentElement(getter_AddRefs(docElement));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_ARG_POINTER(docElement);
return docElement->QueryInterface(NS_GET_IID(nsIDOMNode), (void **)aNode);
}
nsresult nsWebBrowserFind::SetRangeAroundDocument(nsIDOMRange* aSearchRange,
nsIDOMRange* aStartPt,
nsIDOMRange* aEndPt,
nsIDOMDocument* aDoc)
{
nsCOMPtr<nsIDOMNode> bodyNode;
nsresult rv = GetRootNode(aDoc, getter_AddRefs(bodyNode));
nsCOMPtr<nsIContent> bodyContent (do_QueryInterface(bodyNode));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_ARG_POINTER(bodyContent);
PRInt32 childCount;
rv = bodyContent->ChildCount(childCount);
NS_ENSURE_SUCCESS(rv, rv);
aSearchRange->SetStart(bodyNode, 0);
aSearchRange->SetEnd(bodyNode, childCount);
if (mFindBackwards)
{
aStartPt->SetStart(bodyNode, childCount);
aStartPt->SetEnd(bodyNode, childCount);
aEndPt->SetStart(bodyNode, 0);
aEndPt->SetEnd(bodyNode, 0);
}
else
{
aStartPt->SetStart(bodyNode, 0);
aStartPt->SetEnd(bodyNode, 0);
aEndPt->SetStart(bodyNode, childCount);
aEndPt->SetEnd(bodyNode, childCount);
}
return NS_OK;
}
// Set the range to go from the end of the current selection to the
// end of the document (forward), or beginning to beginning (reverse).
// or around the whole document if there's no selection.
nsresult
nsWebBrowserFind::GetSearchLimits(nsIDOMRange* aSearchRange,
nsIDOMRange* aStartPt,
nsIDOMRange* aEndPt,
nsIDOMDocument* aDoc,
nsISelectionController* aSelCon,
PRBool aWrap)
{
NS_ENSURE_ARG_POINTER(aSelCon);
nsCOMPtr<nsISelection> selection;
aSelCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
getter_AddRefs(selection));
if (!selection) return NS_ERROR_BASE;
// There is a selection.
PRInt32 count = -1;
nsresult rv = selection->GetRangeCount(&count);
if (count < 1)
return SetRangeAroundDocument(aSearchRange, aStartPt, aEndPt, aDoc);
// Need bodyNode, for the start/end of the document
nsCOMPtr<nsIDOMNode> bodyNode;
rv = GetRootNode(aDoc, getter_AddRefs(bodyNode));
nsCOMPtr<nsIContent> bodyContent (do_QueryInterface(bodyNode));
NS_ENSURE_ARG_POINTER(bodyContent);
PRInt32 childCount;
rv = bodyContent->ChildCount(childCount);
NS_ENSURE_SUCCESS(rv, rv);
// There are four possible range endpoints we might use:
// DocumentStart, SelectionStart, SelectionEnd, DocumentEnd.
nsCOMPtr<nsIDOMRange> range;
nsCOMPtr<nsIDOMNode> node;
PRInt32 offset;
// Forward, not wrapping: SelEnd to DocEnd
if (!mFindBackwards && !aWrap)
{
// This isn't quite right, since the selection's ranges aren't
// necessarily in order; but they usually will be.
selection->GetRangeAt(count-1, getter_AddRefs(range));
if (!range) return NS_ERROR_UNEXPECTED;
range->GetEndContainer(getter_AddRefs(node));
if (!node) return NS_ERROR_UNEXPECTED;
range->GetEndOffset(&offset);
aSearchRange->SetStart(node, offset);
aSearchRange->SetEnd(bodyNode, childCount);
aStartPt->SetStart(node, offset);
aStartPt->SetEnd(node, offset);
aEndPt->SetStart(bodyNode, childCount);
aEndPt->SetEnd(bodyNode, childCount);
}
// Backward, not wrapping: DocStart to SelStart
else if (mFindBackwards && !aWrap)
{
selection->GetRangeAt(0, getter_AddRefs(range));
if (!range) return NS_ERROR_UNEXPECTED;
range->GetStartContainer(getter_AddRefs(node));
if (!node) return NS_ERROR_UNEXPECTED;
range->GetStartOffset(&offset);
aSearchRange->SetStart(bodyNode, 0);
aSearchRange->SetEnd(bodyNode, childCount);
aStartPt->SetStart(node, offset);
aStartPt->SetEnd(node, offset);
aEndPt->SetStart(bodyNode, 0);
aEndPt->SetEnd(bodyNode, 0);
}
// Forward, wrapping: DocStart to SelEnd
else if (!mFindBackwards && aWrap)
{
selection->GetRangeAt(count-1, getter_AddRefs(range));
if (!range) return NS_ERROR_UNEXPECTED;
range->GetEndContainer(getter_AddRefs(node));
if (!node) return NS_ERROR_UNEXPECTED;
range->GetEndOffset(&offset);
aSearchRange->SetStart(bodyNode, 0);
aSearchRange->SetEnd(bodyNode, childCount);
aStartPt->SetStart(bodyNode, 0);
aStartPt->SetEnd(bodyNode, 0);
aEndPt->SetStart(node, offset);
aEndPt->SetEnd(node, offset);
}
// Backward, wrapping: SelStart to DocEnd
else if (mFindBackwards && aWrap)
{
selection->GetRangeAt(0, getter_AddRefs(range));
if (!range) return NS_ERROR_UNEXPECTED;
range->GetStartContainer(getter_AddRefs(node));
if (!node) return NS_ERROR_UNEXPECTED;
range->GetStartOffset(&offset);
aSearchRange->SetStart(bodyNode, 0);
aSearchRange->SetEnd(bodyNode, childCount);
aStartPt->SetStart(bodyNode, childCount);
aStartPt->SetEnd(bodyNode, childCount);
aEndPt->SetStart(node, offset);
aEndPt->SetEnd(node, offset);
}
return NS_OK;
}
/* attribute boolean searchFrames; */
NS_IMETHODIMP nsWebBrowserFind::GetSearchFrames(PRBool *aSearchFrames)
{
NS_ENSURE_ARG_POINTER(aSearchFrames);
// this only returns true if we are searching both sub and parent
// frames. There is ambiguity if the caller has previously set
// one, but not both of these.
*aSearchFrames = mSearchSubFrames && mSearchParentFrames;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetSearchFrames(PRBool aSearchFrames)
{
mSearchSubFrames = aSearchFrames;
mSearchParentFrames = aSearchFrames;
return NS_OK;
}
/* attribute nsIDOMWindow currentSearchFrame; */
NS_IMETHODIMP nsWebBrowserFind::GetCurrentSearchFrame(nsIDOMWindow * *aCurrentSearchFrame)
{
NS_ENSURE_ARG_POINTER(aCurrentSearchFrame);
nsCOMPtr<nsIDOMWindow> searchFrame = do_QueryReferent(mCurrentSearchFrame);
NS_IF_ADDREF(*aCurrentSearchFrame = searchFrame);
return (*aCurrentSearchFrame) ? NS_OK : NS_ERROR_NOT_INITIALIZED;
}
NS_IMETHODIMP nsWebBrowserFind::SetCurrentSearchFrame(nsIDOMWindow * aCurrentSearchFrame)
{
// is it ever valid to set this to null?
NS_ENSURE_ARG(aCurrentSearchFrame);
mCurrentSearchFrame = getter_AddRefs(NS_GetWeakReference(aCurrentSearchFrame));
return NS_OK;
}
/* attribute nsIDOMWindow rootSearchFrame; */
NS_IMETHODIMP nsWebBrowserFind::GetRootSearchFrame(nsIDOMWindow * *aRootSearchFrame)
{
NS_ENSURE_ARG_POINTER(aRootSearchFrame);
nsCOMPtr<nsIDOMWindow> searchFrame = do_QueryReferent(mRootSearchFrame);
NS_IF_ADDREF(*aRootSearchFrame = searchFrame);
return (*aRootSearchFrame) ? NS_OK : NS_ERROR_NOT_INITIALIZED;
}
NS_IMETHODIMP nsWebBrowserFind::SetRootSearchFrame(nsIDOMWindow * aRootSearchFrame)
{
// is it ever valid to set this to null?
NS_ENSURE_ARG(aRootSearchFrame);
mRootSearchFrame = getter_AddRefs(NS_GetWeakReference(aRootSearchFrame));
return NS_OK;
}
/* attribute boolean searchSubframes; */
NS_IMETHODIMP nsWebBrowserFind::GetSearchSubframes(PRBool *aSearchSubframes)
{
NS_ENSURE_ARG_POINTER(aSearchSubframes);
*aSearchSubframes = mSearchSubFrames;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetSearchSubframes(PRBool aSearchSubframes)
{
mSearchSubFrames = aSearchSubframes;
return NS_OK;
}
/* attribute boolean searchParentFrames; */
NS_IMETHODIMP nsWebBrowserFind::GetSearchParentFrames(PRBool *aSearchParentFrames)
{
NS_ENSURE_ARG_POINTER(aSearchParentFrames);
*aSearchParentFrames = mSearchParentFrames;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserFind::SetSearchParentFrames(PRBool aSearchParentFrames)
{
mSearchParentFrames = aSearchParentFrames;
return NS_OK;
}
void nsWebBrowserFind::MoveFocusToCaret(nsIDOMWindow *aWindow)
{
nsCOMPtr<nsIDocShell> docShell;
GetDocShellFromWindow(aWindow, getter_AddRefs(docShell));
if (!docShell)
return;
nsCOMPtr<nsIPresShell> presShell;
docShell->GetPresShell(getter_AddRefs(presShell));
if (!presShell)
return;
nsCOMPtr<nsIPresContext> presContext;
presShell->GetPresContext(getter_AddRefs(presContext));
if (!presContext)
return;
nsCOMPtr<nsIEventStateManager> esm;
presContext->GetEventStateManager(getter_AddRefs(esm));
if (esm) {
PRBool isSelectionWithFocus;
esm->MoveFocusToCaret(PR_TRUE, &isSelectionWithFocus);
}
}
/*
This method handles finding in a single window (aka frame).
*/
nsresult nsWebBrowserFind::SearchInFrame(nsIDOMWindow* aWindow,
PRBool aWrapping,
PRBool* aDidFind)
{
NS_ENSURE_ARG(aWindow);
NS_ENSURE_ARG_POINTER(aDidFind);
*aDidFind = PR_FALSE;
nsresult rv = NS_OK;
nsCOMPtr<nsIPresShell> presShell;
nsCOMPtr<nsIDOMDocument> domDoc;
rv = aWindow->GetDocument(getter_AddRefs(domDoc));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_ARG_POINTER(domDoc);
// if this is a different frame to last time, throw away the mTSFind
// and make a new one. The nsIFindAndReplace is *not* stateless;
// it remembers the last search offset etc.
nsCOMPtr<nsIDOMWindow> searchFrame = do_QueryReferent(mCurrentSearchFrame);
// Get the selection controller -- we'd better do this every time,
// since the doc might have changed since the last time.
nsCOMPtr<nsIDocShell> docShell;
rv = GetDocShellFromWindow(aWindow, getter_AddRefs(docShell));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_ARG_POINTER(docShell);
docShell->GetPresShell(getter_AddRefs(presShell));
NS_ENSURE_ARG_POINTER(presShell);
if (!mFind)
mFind = do_CreateInstance(NS_FIND_CONTRACTID, &rv);
#if DEBUG_smfr
{
nsCOMPtr<nsIDocShell> searchShell;
GetDocShellFromWindow(searchFrame, getter_AddRefs(searchShell));
nsCOMPtr<nsIWebNavigation> webnav = do_QueryInterface(searchShell);
if (webnav)
{
nsCOMPtr<nsIURI> curURI;
webnav->GetCurrentURI(getter_AddRefs(curURI));
nsXPIDLCString uriSpec;
if (curURI)
curURI->GetSpec(getter_Copies(uriSpec));
printf("Searching frame %s\n", (const char*)uriSpec);
}
}
#endif
(void) mFind->SetCaseSensitive(mMatchCase);
(void) mFind->SetFindBackwards(mFindBackwards);
// XXX Make and set a line breaker here, once that's implemented.
(void) mFind->SetWordBreaker(0);
nsCOMPtr<nsISelectionController> selCon (do_QueryInterface(presShell));
NS_ENSURE_ARG_POINTER(selCon);
nsCOMPtr<nsIDOMRange> searchRange (do_CreateInstance(kRangeCID));
NS_ENSURE_ARG_POINTER(searchRange);
nsCOMPtr<nsIDOMRange> startPt (do_CreateInstance(kRangeCID));
NS_ENSURE_ARG_POINTER(startPt);
nsCOMPtr<nsIDOMRange> endPt (do_CreateInstance(kRangeCID));
NS_ENSURE_ARG_POINTER(endPt);
nsCOMPtr<nsIDOMRange> foundRange;
// If !aWrapping, search from selection to end
if (!aWrapping)
rv = GetSearchLimits(searchRange, startPt, endPt, domDoc, selCon,
PR_FALSE);
// If aWrapping, search the part of the starting frame
// up to the point where we left off.
else
rv = GetSearchLimits(searchRange, startPt, endPt, domDoc, selCon,
PR_TRUE);
NS_ENSURE_SUCCESS(rv, rv);
rv = mFind->Find(mSearchString.get(), searchRange, startPt, endPt,
getter_AddRefs(foundRange));
if (NS_SUCCEEDED(rv) && foundRange)
{
*aDidFind = PR_TRUE;
SetSelectionAndScroll(foundRange, selCon);
}
if (*aDidFind)
MoveFocusToCaret(aWindow);
return rv;
}
// called when we start searching a frame that is not the initial
// focussed frame. Prepare the frame to be searched.
// we clear the selection, so that the search starts from the top
// of the frame.
nsresult nsWebBrowserFind::OnStartSearchFrame(nsIDOMWindow *aWindow)
{
return ClearFrameSelection(aWindow);
}
// called when we are done searching a frame and didn't find anything,
// and about about to start searching the next frame.
nsresult nsWebBrowserFind::OnEndSearchFrame(nsIDOMWindow *aWindow)
{
return NS_OK;
}
nsresult nsWebBrowserFind::ClearFrameSelection(nsIDOMWindow *aWindow)
{
NS_ENSURE_ARG(aWindow);
nsCOMPtr<nsISelection> selection;
aWindow->GetSelection(getter_AddRefs(selection));
if (selection)
selection->RemoveAllRanges();
return NS_OK;
}
nsresult nsWebBrowserFind::OnFind(nsIDOMWindow *aFoundWindow)
{
SetCurrentSearchFrame(aFoundWindow);
// We don't want a selection to appear in two frames simultaneously
nsCOMPtr<nsIDOMWindow> lastFocusedWindow = do_QueryReferent(mLastFocusedWindow);
if (lastFocusedWindow && lastFocusedWindow != aFoundWindow)
ClearFrameSelection(lastFocusedWindow);
// focus the frame we found in
nsCOMPtr<nsPIDOMWindow> ourWindow = do_QueryInterface(aFoundWindow);
nsCOMPtr<nsIFocusController> focusController;
if (ourWindow)
ourWindow->GetRootFocusController(getter_AddRefs(focusController));
if (focusController)
{
nsCOMPtr<nsIDOMWindowInternal> windowInt = do_QueryInterface(aFoundWindow);
focusController->SetFocusedWindow(windowInt);
mLastFocusedWindow = getter_AddRefs(NS_GetWeakReference(aFoundWindow));
}
return NS_OK;
}
/*---------------------------------------------------------------------------
GetDocShellFromWindow
Utility method. This will always return an error if no docShell
is returned. Oh why isn't there a better way to do this?
----------------------------------------------------------------------------*/
nsresult
nsWebBrowserFind::GetDocShellFromWindow(nsIDOMWindow *inWindow, nsIDocShell** outDocShell)
{
nsCOMPtr<nsIScriptGlobalObject> scriptGO(do_QueryInterface(inWindow));
if (!scriptGO) return NS_ERROR_FAILURE;
nsresult rv = scriptGO->GetDocShell(outDocShell);
if (NS_FAILED(rv)) return rv;
if (!*outDocShell) return NS_ERROR_FAILURE;
return NS_OK;
}
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