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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /embedding/components/find/nsWebBrowserFind.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'embedding/components/find/nsWebBrowserFind.cpp')
-rw-r--r--embedding/components/find/nsWebBrowserFind.cpp868
1 files changed, 868 insertions, 0 deletions
diff --git a/embedding/components/find/nsWebBrowserFind.cpp b/embedding/components/find/nsWebBrowserFind.cpp
new file mode 100644
index 000000000..af44ce59b
--- /dev/null
+++ b/embedding/components/find/nsWebBrowserFind.cpp
@@ -0,0 +1,868 @@
+/* -*- 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/. */
+
+#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 "nsIScriptSecurityManager.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsPIDOMWindow.h"
+#include "nsIURI.h"
+#include "nsIDocShell.h"
+#include "nsIPresShell.h"
+#include "nsPresContext.h"
+#include "nsIDocument.h"
+#include "nsIDOMDocument.h"
+#include "nsISelectionController.h"
+#include "nsISelection.h"
+#include "nsIFrame.h"
+#include "nsITextControlFrame.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"
+#include "nsFind.h"
+#include "nsError.h"
+#include "nsFocusManager.h"
+#include "mozilla/Services.h"
+#include "mozilla/dom/Element.h"
+#include "nsISimpleEnumerator.h"
+#include "nsContentUtils.h"
+
+#if DEBUG
+#include "nsIWebNavigation.h"
+#include "nsXPIDLString.h"
+#endif
+
+nsWebBrowserFind::nsWebBrowserFind()
+ : mFindBackwards(false)
+ , mWrapFind(false)
+ , mEntireWord(false)
+ , mMatchCase(false)
+ , mSearchSubFrames(true)
+ , mSearchParentFrames(true)
+{
+}
+
+nsWebBrowserFind::~nsWebBrowserFind()
+{
+}
+
+NS_IMPL_ISUPPORTS(nsWebBrowserFind, nsIWebBrowserFind,
+ nsIWebBrowserFindInFrames)
+
+NS_IMETHODIMP
+nsWebBrowserFind::FindNext(bool* aResult)
+{
+ NS_ENSURE_ARG_POINTER(aResult);
+ *aResult = false;
+
+ NS_ENSURE_TRUE(CanFindNext(), NS_ERROR_NOT_INITIALIZED);
+
+ nsresult rv = NS_OK;
+ nsCOMPtr<nsPIDOMWindowOuter> searchFrame = do_QueryReferent(mCurrentSearchFrame);
+ NS_ENSURE_TRUE(searchFrame, NS_ERROR_NOT_INITIALIZED);
+
+ nsCOMPtr<nsPIDOMWindowOuter> rootFrame = do_QueryReferent(mRootSearchFrame);
+ NS_ENSURE_TRUE(rootFrame, 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> observerSvc =
+ mozilla::services::GetObserverService();
+ if (observerSvc) {
+ nsCOMPtr<nsISupportsInterfacePointer> windowSupportsData =
+ do_CreateInstance(NS_SUPPORTS_INTERFACE_POINTER_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+ nsCOMPtr<nsISupports> searchWindowSupports = do_QueryInterface(rootFrame);
+ windowSupportsData->SetData(searchWindowSupports);
+ NS_NAMED_LITERAL_STRING(dnStr, "down");
+ NS_NAMED_LITERAL_STRING(upStr, "up");
+ observerSvc->NotifyObservers(windowSupportsData,
+ "nsWebBrowserFind_FindAgain",
+ mFindBackwards ? upStr.get() : dnStr.get());
+ windowSupportsData->GetData(getter_AddRefs(searchWindowSupports));
+ // findnext performed if search window data cleared out
+ *aResult = searchWindowSupports == nullptr;
+ if (*aResult) {
+ return NS_OK;
+ }
+ }
+
+ // next, look in the current frame. If found, return.
+
+ // Beware! This may flush notifications via synchronous
+ // ScrollSelectionIntoView.
+ rv = SearchInFrame(searchFrame, false, aResult);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ if (*aResult) {
+ return OnFind(searchFrame); // we are done
+ }
+
+ // if we are not searching other frames, return
+ if (!mSearchSubFrames && !mSearchParentFrames) {
+ return NS_OK;
+ }
+
+ nsIDocShell* rootDocShell = rootFrame->GetDocShell();
+ if (!rootDocShell) {
+ return NS_ERROR_FAILURE;
+ }
+
+ int32_t enumDirection = mFindBackwards ? nsIDocShell::ENUMERATE_BACKWARDS :
+ nsIDocShell::ENUMERATE_FORWARDS;
+
+ nsCOMPtr<nsISimpleEnumerator> docShellEnumerator;
+ rv = rootDocShell->GetDocShellEnumerator(nsIDocShellTreeItem::typeAll,
+ enumDirection,
+ getter_AddRefs(docShellEnumerator));
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ // remember where we started
+ nsCOMPtr<nsIDocShellTreeItem> startingItem =
+ do_QueryInterface(searchFrame->GetDocShell(), &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.
+ bool hasMore, doFind = 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 = curItem->GetWindow();
+ if (!searchFrame) {
+ break;
+ }
+
+ OnStartSearchFrame(searchFrame);
+
+ // Beware! This may flush notifications via synchronous
+ // ScrollSelectionIntoView.
+ rv = SearchInFrame(searchFrame, false, aResult);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ if (*aResult) {
+ return OnFind(searchFrame); // we are done
+ }
+
+ OnEndSearchFrame(searchFrame);
+ }
+
+ if (curItem.get() == startingItem.get()) {
+ doFind = 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 = nullptr;
+ rv = rootDocShell->GetDocShellEnumerator(nsIDocShellTreeItem::typeAll,
+ 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;
+ }
+
+ searchFrame = curItem->GetWindow();
+ if (!searchFrame) {
+ rv = NS_ERROR_FAILURE;
+ break;
+ }
+
+ if (curItem.get() == startingItem.get()) {
+ // Beware! This may flush notifications via synchronous
+ // ScrollSelectionIntoView.
+ rv = SearchInFrame(searchFrame, true, aResult);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ if (*aResult) {
+ return OnFind(searchFrame); // we are done
+ }
+ break;
+ }
+
+ OnStartSearchFrame(searchFrame);
+
+ // Beware! This may flush notifications via synchronous
+ // ScrollSelectionIntoView.
+ rv = SearchInFrame(searchFrame, false, aResult);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ if (*aResult) {
+ return OnFind(searchFrame); // we are done
+ }
+
+ OnEndSearchFrame(searchFrame);
+ }
+
+ // remember where we left off
+ SetCurrentSearchFrame(searchFrame);
+
+ NS_ASSERTION(NS_SUCCEEDED(rv), "Something failed");
+ return rv;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetSearchString(char16_t** aSearchString)
+{
+ NS_ENSURE_ARG_POINTER(aSearchString);
+ *aSearchString = ToNewUnicode(mSearchString);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetSearchString(const char16_t* aSearchString)
+{
+ mSearchString.Assign(aSearchString);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetFindBackwards(bool* aFindBackwards)
+{
+ NS_ENSURE_ARG_POINTER(aFindBackwards);
+ *aFindBackwards = mFindBackwards;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetFindBackwards(bool aFindBackwards)
+{
+ mFindBackwards = aFindBackwards;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetWrapFind(bool* aWrapFind)
+{
+ NS_ENSURE_ARG_POINTER(aWrapFind);
+ *aWrapFind = mWrapFind;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetWrapFind(bool aWrapFind)
+{
+ mWrapFind = aWrapFind;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetEntireWord(bool* aEntireWord)
+{
+ NS_ENSURE_ARG_POINTER(aEntireWord);
+ *aEntireWord = mEntireWord;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetEntireWord(bool aEntireWord)
+{
+ mEntireWord = aEntireWord;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetMatchCase(bool* aMatchCase)
+{
+ NS_ENSURE_ARG_POINTER(aMatchCase);
+ *aMatchCase = mMatchCase;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetMatchCase(bool aMatchCase)
+{
+ mMatchCase = aMatchCase;
+ return NS_OK;
+}
+
+static bool
+IsInNativeAnonymousSubtree(nsIContent* aContent)
+{
+ while (aContent) {
+ nsIContent* bindingParent = aContent->GetBindingParent();
+ if (bindingParent == aContent) {
+ return true;
+ }
+
+ aContent = bindingParent;
+ }
+
+ return false;
+}
+
+void
+nsWebBrowserFind::SetSelectionAndScroll(nsPIDOMWindowOuter* aWindow,
+ nsIDOMRange* aRange)
+{
+ nsCOMPtr<nsIDocument> doc = aWindow->GetDoc();
+ if (!doc) {
+ return;
+ }
+
+ nsIPresShell* presShell = doc->GetShell();
+ if (!presShell) {
+ return;
+ }
+
+ nsCOMPtr<nsIDOMNode> node;
+ aRange->GetStartContainer(getter_AddRefs(node));
+ nsCOMPtr<nsIContent> content(do_QueryInterface(node));
+ nsIFrame* frame = content->GetPrimaryFrame();
+ if (!frame) {
+ return;
+ }
+ nsCOMPtr<nsISelectionController> selCon;
+ frame->GetSelectionController(presShell->GetPresContext(),
+ getter_AddRefs(selCon));
+
+ // since the match could be an anonymous textnode inside a
+ // <textarea> or text <input>, we need to get the outer frame
+ nsITextControlFrame* tcFrame = nullptr;
+ for (; content; content = content->GetParent()) {
+ if (!IsInNativeAnonymousSubtree(content)) {
+ nsIFrame* f = content->GetPrimaryFrame();
+ if (!f) {
+ return;
+ }
+ tcFrame = do_QueryFrame(f);
+ break;
+ }
+ }
+
+ nsCOMPtr<nsISelection> selection;
+
+ selCon->SetDisplaySelection(nsISelectionController::SELECTION_ON);
+ selCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
+ getter_AddRefs(selection));
+ if (selection) {
+ selection->RemoveAllRanges();
+ selection->AddRange(aRange);
+
+ nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID);
+ if (fm) {
+ if (tcFrame) {
+ nsCOMPtr<nsIDOMElement> newFocusedElement(do_QueryInterface(content));
+ fm->SetFocus(newFocusedElement, nsIFocusManager::FLAG_NOSCROLL);
+ } else {
+ nsCOMPtr<nsIDOMElement> result;
+ fm->MoveFocus(aWindow, nullptr, nsIFocusManager::MOVEFOCUS_CARET,
+ nsIFocusManager::FLAG_NOSCROLL, getter_AddRefs(result));
+ }
+ }
+
+ // Scroll if necessary to make the selection visible:
+ // Must be the last thing to do - bug 242056
+
+ // After ScrollSelectionIntoView(), the pending notifications might be
+ // flushed and PresShell/PresContext/Frames may be dead. See bug 418470.
+ selCon->ScrollSelectionIntoView(
+ nsISelectionController::SELECTION_NORMAL,
+ nsISelectionController::SELECTION_WHOLE_SELECTION,
+ nsISelectionController::SCROLL_CENTER_VERTICALLY |
+ nsISelectionController::SCROLL_SYNCHRONOUS);
+ }
+}
+
+// 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);
+ bodyElement.forget(aNode);
+ return NS_OK;
+ }
+
+ // 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);
+ docElement.forget(aNode);
+ return NS_OK;
+}
+
+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);
+
+ uint32_t childCount = bodyContent->GetChildCount();
+
+ 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, nsISelection* aSel,
+ bool aWrap)
+{
+ NS_ENSURE_ARG_POINTER(aSel);
+
+ // There is a selection.
+ int32_t count = -1;
+ nsresult rv = aSel->GetRangeCount(&count);
+ NS_ENSURE_SUCCESS(rv, rv);
+ 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));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsIContent> bodyContent(do_QueryInterface(bodyNode));
+ NS_ENSURE_ARG_POINTER(bodyContent);
+
+ uint32_t childCount = bodyContent->GetChildCount();
+
+ // There are four possible range endpoints we might use:
+ // DocumentStart, SelectionStart, SelectionEnd, DocumentEnd.
+
+ nsCOMPtr<nsIDOMRange> range;
+ nsCOMPtr<nsIDOMNode> node;
+ int32_t 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.
+ aSel->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) {
+ aSel->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) {
+ aSel->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) {
+ aSel->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;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetSearchFrames(bool* 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(bool aSearchFrames)
+{
+ mSearchSubFrames = aSearchFrames;
+ mSearchParentFrames = aSearchFrames;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetCurrentSearchFrame(mozIDOMWindowProxy** aCurrentSearchFrame)
+{
+ NS_ENSURE_ARG_POINTER(aCurrentSearchFrame);
+ nsCOMPtr<mozIDOMWindowProxy> searchFrame = do_QueryReferent(mCurrentSearchFrame);
+ searchFrame.forget(aCurrentSearchFrame);
+ return (*aCurrentSearchFrame) ? NS_OK : NS_ERROR_NOT_INITIALIZED;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetCurrentSearchFrame(mozIDOMWindowProxy* aCurrentSearchFrame)
+{
+ // is it ever valid to set this to null?
+ NS_ENSURE_ARG(aCurrentSearchFrame);
+ mCurrentSearchFrame = do_GetWeakReference(aCurrentSearchFrame);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetRootSearchFrame(mozIDOMWindowProxy** aRootSearchFrame)
+{
+ NS_ENSURE_ARG_POINTER(aRootSearchFrame);
+ nsCOMPtr<mozIDOMWindowProxy> searchFrame = do_QueryReferent(mRootSearchFrame);
+ searchFrame.forget(aRootSearchFrame);
+ return (*aRootSearchFrame) ? NS_OK : NS_ERROR_NOT_INITIALIZED;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetRootSearchFrame(mozIDOMWindowProxy* aRootSearchFrame)
+{
+ // is it ever valid to set this to null?
+ NS_ENSURE_ARG(aRootSearchFrame);
+ mRootSearchFrame = do_GetWeakReference(aRootSearchFrame);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetSearchSubframes(bool* aSearchSubframes)
+{
+ NS_ENSURE_ARG_POINTER(aSearchSubframes);
+ *aSearchSubframes = mSearchSubFrames;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetSearchSubframes(bool aSearchSubframes)
+{
+ mSearchSubFrames = aSearchSubframes;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::GetSearchParentFrames(bool* aSearchParentFrames)
+{
+ NS_ENSURE_ARG_POINTER(aSearchParentFrames);
+ *aSearchParentFrames = mSearchParentFrames;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebBrowserFind::SetSearchParentFrames(bool aSearchParentFrames)
+{
+ mSearchParentFrames = aSearchParentFrames;
+ return NS_OK;
+}
+
+/*
+ This method handles finding in a single window (aka frame).
+
+*/
+nsresult
+nsWebBrowserFind::SearchInFrame(nsPIDOMWindowOuter* aWindow, bool aWrapping,
+ bool* aDidFind)
+{
+ NS_ENSURE_ARG(aWindow);
+ NS_ENSURE_ARG_POINTER(aDidFind);
+
+ *aDidFind = false;
+
+ // Do security check, to ensure that the frame we're searching is
+ // acccessible from the frame where the Find is being run.
+
+ // get a uri for the window
+ nsCOMPtr<nsIDocument> theDoc = aWindow->GetDoc();
+ if (!theDoc) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (!nsContentUtils::SubjectPrincipal()->Subsumes(theDoc->NodePrincipal())) {
+ return NS_ERROR_DOM_PROP_ACCESS_DENIED;
+ }
+
+ nsresult rv;
+ nsCOMPtr<nsIFind> find = do_CreateInstance(NS_FIND_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ (void)find->SetCaseSensitive(mMatchCase);
+ (void)find->SetFindBackwards(mFindBackwards);
+
+ (void)find->SetEntireWord(mEntireWord);
+
+ // Now make sure the content (for actual finding) and frame (for
+ // selection) models are up to date.
+ theDoc->FlushPendingNotifications(Flush_Frames);
+
+ nsCOMPtr<nsISelection> sel = GetFrameSelection(aWindow);
+ NS_ENSURE_ARG_POINTER(sel);
+
+ nsCOMPtr<nsIDOMRange> searchRange = new nsRange(theDoc);
+ NS_ENSURE_ARG_POINTER(searchRange);
+ nsCOMPtr<nsIDOMRange> startPt = new nsRange(theDoc);
+ NS_ENSURE_ARG_POINTER(startPt);
+ nsCOMPtr<nsIDOMRange> endPt = new nsRange(theDoc);
+ NS_ENSURE_ARG_POINTER(endPt);
+
+ nsCOMPtr<nsIDOMRange> foundRange;
+
+ nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(theDoc);
+ MOZ_ASSERT(domDoc);
+
+ // If !aWrapping, search from selection to end
+ if (!aWrapping)
+ rv = GetSearchLimits(searchRange, startPt, endPt, domDoc, sel, 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, sel, true);
+
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = find->Find(mSearchString.get(), searchRange, startPt, endPt,
+ getter_AddRefs(foundRange));
+
+ if (NS_SUCCEEDED(rv) && foundRange) {
+ *aDidFind = true;
+ sel->RemoveAllRanges();
+ // Beware! This may flush notifications via synchronous
+ // ScrollSelectionIntoView.
+ SetSelectionAndScroll(aWindow, foundRange);
+ }
+
+ 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(nsPIDOMWindowOuter* 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(nsPIDOMWindowOuter* aWindow)
+{
+ return NS_OK;
+}
+
+already_AddRefed<nsISelection>
+nsWebBrowserFind::GetFrameSelection(nsPIDOMWindowOuter* aWindow)
+{
+ nsCOMPtr<nsIDocument> doc = aWindow->GetDoc();
+ if (!doc) {
+ return nullptr;
+ }
+
+ nsIPresShell* presShell = doc->GetShell();
+ if (!presShell) {
+ return nullptr;
+ }
+
+ // text input controls have their independent selection controllers that we
+ // must use when they have focus.
+ nsPresContext* presContext = presShell->GetPresContext();
+
+ nsCOMPtr<nsPIDOMWindowOuter> focusedWindow;
+ nsCOMPtr<nsIContent> focusedContent = nsFocusManager::GetFocusedDescendant(
+ aWindow, false, getter_AddRefs(focusedWindow));
+
+ nsIFrame* frame =
+ focusedContent ? focusedContent->GetPrimaryFrame() : nullptr;
+
+ nsCOMPtr<nsISelectionController> selCon;
+ nsCOMPtr<nsISelection> sel;
+ if (frame) {
+ frame->GetSelectionController(presContext, getter_AddRefs(selCon));
+ selCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
+ getter_AddRefs(sel));
+ if (sel) {
+ int32_t count = -1;
+ sel->GetRangeCount(&count);
+ if (count > 0) {
+ return sel.forget();
+ }
+ }
+ }
+
+ selCon = do_QueryInterface(presShell);
+ selCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
+ getter_AddRefs(sel));
+ return sel.forget();
+}
+
+nsresult
+nsWebBrowserFind::ClearFrameSelection(nsPIDOMWindowOuter* aWindow)
+{
+ NS_ENSURE_ARG(aWindow);
+ nsCOMPtr<nsISelection> selection = GetFrameSelection(aWindow);
+ if (selection) {
+ selection->RemoveAllRanges();
+ }
+
+ return NS_OK;
+}
+
+nsresult
+nsWebBrowserFind::OnFind(nsPIDOMWindowOuter* aFoundWindow)
+{
+ SetCurrentSearchFrame(aFoundWindow);
+
+ // We don't want a selection to appear in two frames simultaneously
+ nsCOMPtr<nsPIDOMWindowOuter> lastFocusedWindow =
+ do_QueryReferent(mLastFocusedWindow);
+ if (lastFocusedWindow && lastFocusedWindow != aFoundWindow) {
+ ClearFrameSelection(lastFocusedWindow);
+ }
+
+ nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID);
+ if (fm) {
+ // get the containing frame and focus it. For top-level windows, the right
+ // window should already be focused.
+ nsCOMPtr<nsIDOMElement> frameElement =
+ do_QueryInterface(aFoundWindow->GetFrameElementInternal());
+ if (frameElement) {
+ fm->SetFocus(frameElement, 0);
+ }
+
+ mLastFocusedWindow = do_GetWeakReference(aFoundWindow);
+ }
+
+ return NS_OK;
+}