e8bb1c660e
Backed out changeset c29de223de2f (bug 1208944) Backed out changeset 3d99da255be1 (bug 1209844) Backed out changeset 3c915942af38 (bug 1209844) Backed out changeset 759b425b5503 (bug 1208944) Backed out changeset bf73cf8f0fda (bug 1208944) Backed out changeset 0e337d912b7d (bug 1208944) Backed out changeset 31c47f2980b5 (bug 1208944) Backed out changeset 3e0d70a6e809 (bug 1208944) Backed out changeset 7685dcb63e5f (bug 1208944) Backed out changeset 3c2b9372dd36 (bug 1208944) Backed out changeset 18160d306493 (bug 1208944) Backed out changeset 4974e397b655 (bug 1208944) Backed out changeset fde7e439844d (bug 1208944) Backed out changeset 4213a355fbdc (bug 1208944) Backed out changeset 33cfddbbf5f2 (bug 1208944)
1092 lines
39 KiB
C++
1092 lines
39 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/ContentCache.h"
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#include "mozilla/IMEStateManager.h"
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#include "mozilla/Logging.h"
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#include "mozilla/TextComposition.h"
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#include "mozilla/TextEvents.h"
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#include "nsIWidget.h"
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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using namespace widget;
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static const char*
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GetBoolName(bool aBool)
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{
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return aBool ? "true" : "false";
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}
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static const char*
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GetNotificationName(const IMENotification* aNotification)
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{
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if (!aNotification) {
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return "Not notification";
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}
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switch (aNotification->mMessage) {
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case NOTIFY_IME_OF_FOCUS:
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return "NOTIFY_IME_OF_FOCUS";
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case NOTIFY_IME_OF_BLUR:
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return "NOTIFY_IME_OF_BLUR";
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case NOTIFY_IME_OF_SELECTION_CHANGE:
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return "NOTIFY_IME_OF_SELECTION_CHANGE";
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case NOTIFY_IME_OF_TEXT_CHANGE:
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return "NOTIFY_IME_OF_TEXT_CHANGE";
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case NOTIFY_IME_OF_COMPOSITION_UPDATE:
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return "NOTIFY_IME_OF_COMPOSITION_UPDATE";
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case NOTIFY_IME_OF_POSITION_CHANGE:
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return "NOTIFY_IME_OF_POSITION_CHANGE";
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case NOTIFY_IME_OF_MOUSE_BUTTON_EVENT:
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return "NOTIFY_IME_OF_MOUSE_BUTTON_EVENT";
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case REQUEST_TO_COMMIT_COMPOSITION:
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return "REQUEST_TO_COMMIT_COMPOSITION";
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case REQUEST_TO_CANCEL_COMPOSITION:
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return "REQUEST_TO_CANCEL_COMPOSITION";
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default:
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return "Unsupported notification";
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}
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}
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class GetRectText : public nsAutoCString
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{
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public:
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explicit GetRectText(const LayoutDeviceIntRect& aRect)
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{
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Assign("{ x=");
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AppendInt(aRect.x);
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Append(", y=");
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AppendInt(aRect.y);
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Append(", width=");
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AppendInt(aRect.width);
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Append(", height=");
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AppendInt(aRect.height);
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Append(" }");
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}
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virtual ~GetRectText() {}
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};
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class GetWritingModeName : public nsAutoCString
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{
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public:
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explicit GetWritingModeName(const WritingMode& aWritingMode)
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{
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if (!aWritingMode.IsVertical()) {
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Assign("Horizontal");
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return;
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}
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if (aWritingMode.IsVerticalLR()) {
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Assign("Vertical (LTR)");
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return;
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}
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Assign("Vertical (RTL)");
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}
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virtual ~GetWritingModeName() {}
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};
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/*****************************************************************************
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* mozilla::ContentCache
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*****************************************************************************/
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PRLogModuleInfo* sContentCacheLog = nullptr;
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ContentCache::ContentCache()
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{
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if (!sContentCacheLog) {
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sContentCacheLog = PR_NewLogModule("ContentCacheWidgets");
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}
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}
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/*****************************************************************************
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* mozilla::ContentCacheInChild
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*****************************************************************************/
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ContentCacheInChild::ContentCacheInChild()
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: ContentCache()
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{
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}
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void
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ContentCacheInChild::Clear()
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p Clear()", this));
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mText.Truncate();
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mSelection.Clear();
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mFirstCharRect.SetEmpty();
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mCaret.Clear();
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mTextRectArray.Clear();
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mEditorRect.SetEmpty();
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}
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bool
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ContentCacheInChild::CacheAll(nsIWidget* aWidget,
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const IMENotification* aNotification)
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheAll(aWidget=0x%p, "
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"aNotification=%s)",
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this, aWidget, GetNotificationName(aNotification)));
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if (NS_WARN_IF(!CacheText(aWidget, aNotification)) ||
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NS_WARN_IF(!CacheEditorRect(aWidget, aNotification))) {
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return false;
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}
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return true;
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}
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bool
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ContentCacheInChild::CacheSelection(nsIWidget* aWidget,
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const IMENotification* aNotification)
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheSelection(aWidget=0x%p, "
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"aNotification=%s)",
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this, aWidget, GetNotificationName(aNotification)));
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mCaret.Clear();
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mSelection.Clear();
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nsEventStatus status = nsEventStatus_eIgnore;
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WidgetQueryContentEvent selection(true, eQuerySelectedText, aWidget);
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aWidget->DispatchEvent(&selection, status);
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if (NS_WARN_IF(!selection.mSucceeded)) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCache: 0x%p CacheSelection(), FAILED, "
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"couldn't retrieve the selected text", this));
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return false;
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}
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if (selection.mReply.mReversed) {
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mSelection.mAnchor =
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selection.mReply.mOffset + selection.mReply.mString.Length();
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mSelection.mFocus = selection.mReply.mOffset;
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} else {
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mSelection.mAnchor = selection.mReply.mOffset;
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mSelection.mFocus =
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selection.mReply.mOffset + selection.mReply.mString.Length();
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}
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mSelection.mWritingMode = selection.GetWritingMode();
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return CacheCaret(aWidget, aNotification) &&
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CacheTextRects(aWidget, aNotification);
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}
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bool
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ContentCacheInChild::CacheCaret(nsIWidget* aWidget,
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const IMENotification* aNotification)
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheCaret(aWidget=0x%p, "
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"aNotification=%s)",
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this, aWidget, GetNotificationName(aNotification)));
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mCaret.Clear();
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if (NS_WARN_IF(!mSelection.IsValid())) {
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return false;
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}
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// XXX Should be mSelection.mFocus?
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mCaret.mOffset = mSelection.StartOffset();
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nsEventStatus status = nsEventStatus_eIgnore;
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WidgetQueryContentEvent caretRect(true, eQueryCaretRect, aWidget);
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caretRect.InitForQueryCaretRect(mCaret.mOffset);
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aWidget->DispatchEvent(&caretRect, status);
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if (NS_WARN_IF(!caretRect.mSucceeded)) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheCaret(), FAILED, "
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"couldn't retrieve the caret rect at offset=%u",
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this, mCaret.mOffset));
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mCaret.Clear();
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return false;
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}
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mCaret.mRect = caretRect.mReply.mRect;
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheCaret(), Succeeded, "
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"mSelection={ mAnchor=%u, mFocus=%u, mWritingMode=%s }, "
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"mCaret={ mOffset=%u, mRect=%s }",
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this, mSelection.mAnchor, mSelection.mFocus,
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GetWritingModeName(mSelection.mWritingMode).get(), mCaret.mOffset,
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GetRectText(mCaret.mRect).get()));
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return true;
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}
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bool
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ContentCacheInChild::CacheEditorRect(nsIWidget* aWidget,
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const IMENotification* aNotification)
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheEditorRect(aWidget=0x%p, "
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"aNotification=%s)",
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this, aWidget, GetNotificationName(aNotification)));
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nsEventStatus status = nsEventStatus_eIgnore;
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WidgetQueryContentEvent editorRectEvent(true, eQueryEditorRect, aWidget);
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aWidget->DispatchEvent(&editorRectEvent, status);
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if (NS_WARN_IF(!editorRectEvent.mSucceeded)) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheEditorRect(), FAILED, "
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"couldn't retrieve the editor rect", this));
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return false;
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}
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mEditorRect = editorRectEvent.mReply.mRect;
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheEditorRect(), Succeeded, "
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"mEditorRect=%s", this, GetRectText(mEditorRect).get()));
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return true;
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}
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bool
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ContentCacheInChild::CacheText(nsIWidget* aWidget,
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const IMENotification* aNotification)
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheText(aWidget=0x%p, "
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"aNotification=%s)",
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this, aWidget, GetNotificationName(aNotification)));
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nsEventStatus status = nsEventStatus_eIgnore;
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WidgetQueryContentEvent queryText(true, eQueryTextContent, aWidget);
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queryText.InitForQueryTextContent(0, UINT32_MAX);
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aWidget->DispatchEvent(&queryText, status);
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if (NS_WARN_IF(!queryText.mSucceeded)) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheText(), FAILED, "
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"couldn't retrieve whole text", this));
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mText.Truncate();
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return false;
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}
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mText = queryText.mReply.mString;
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheText(), Succeeded, "
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"mText.Length()=%u", this, mText.Length()));
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return CacheSelection(aWidget, aNotification);
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}
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bool
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ContentCacheInChild::QueryCharRect(nsIWidget* aWidget,
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uint32_t aOffset,
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LayoutDeviceIntRect& aCharRect) const
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{
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aCharRect.SetEmpty();
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nsEventStatus status = nsEventStatus_eIgnore;
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WidgetQueryContentEvent textRect(true, eQueryTextRect, aWidget);
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textRect.InitForQueryTextRect(aOffset, 1);
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aWidget->DispatchEvent(&textRect, status);
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if (NS_WARN_IF(!textRect.mSucceeded)) {
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return false;
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}
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aCharRect = textRect.mReply.mRect;
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// Guarantee the rect is not empty.
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if (NS_WARN_IF(!aCharRect.height)) {
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aCharRect.height = 1;
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}
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if (NS_WARN_IF(!aCharRect.width)) {
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aCharRect.width = 1;
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}
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return true;
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}
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bool
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ContentCacheInChild::CacheTextRects(nsIWidget* aWidget,
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const IMENotification* aNotification)
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheTextRects(aWidget=0x%p, "
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"aNotification=%s), mCaret={ mOffset=%u, IsValid()=%s }",
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this, aWidget, GetNotificationName(aNotification), mCaret.mOffset,
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GetBoolName(mCaret.IsValid())));
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mTextRectArray.Clear();
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mSelection.mAnchorCharRect.SetEmpty();
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mSelection.mFocusCharRect.SetEmpty();
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mSelection.mRect.SetEmpty();
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mFirstCharRect.SetEmpty();
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if (NS_WARN_IF(!mSelection.IsValid())) {
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return false;
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}
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// Retrieve text rects in composition string if there is.
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RefPtr<TextComposition> textComposition =
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IMEStateManager::GetTextCompositionFor(aWidget);
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if (textComposition) {
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// Note that TextComposition::String() may not be modified here because
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// it's modified after all edit action listeners are performed but this
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// is called while some of them are performed.
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uint32_t length = textComposition->LastData().Length();
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mTextRectArray.mRects.SetCapacity(length);
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mTextRectArray.mStart = textComposition->NativeOffsetOfStartComposition();
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uint32_t endOffset = mTextRectArray.mStart + length;
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for (uint32_t i = mTextRectArray.mStart; i < endOffset; i++) {
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LayoutDeviceIntRect charRect;
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if (NS_WARN_IF(!QueryCharRect(aWidget, i, charRect))) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheTextRects(), FAILED, "
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"couldn't retrieve text rect at offset=%u", this, i));
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mTextRectArray.Clear();
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return false;
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}
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mTextRectArray.mRects.AppendElement(charRect);
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}
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}
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if (mTextRectArray.InRange(mSelection.mAnchor)) {
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mSelection.mAnchorCharRect = mTextRectArray.GetRect(mSelection.mAnchor);
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} else {
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LayoutDeviceIntRect charRect;
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if (NS_WARN_IF(!QueryCharRect(aWidget, mSelection.mAnchor, charRect))) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheTextRects(), FAILED, "
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"couldn't retrieve text rect at anchor of selection (%u)",
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this, mSelection.mAnchor));
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}
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mSelection.mAnchorCharRect = charRect;
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}
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if (mSelection.Collapsed()) {
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mSelection.mFocusCharRect = mSelection.mAnchorCharRect;
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} else if (mTextRectArray.InRange(mSelection.mFocus)) {
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mSelection.mFocusCharRect = mTextRectArray.GetRect(mSelection.mFocus);
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} else {
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LayoutDeviceIntRect charRect;
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if (NS_WARN_IF(!QueryCharRect(aWidget, mSelection.mFocus, charRect))) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheTextRects(), FAILED, "
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"couldn't retrieve text rect at focus of selection (%u)",
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this, mSelection.mFocus));
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}
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mSelection.mFocusCharRect = charRect;
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}
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if (!mSelection.Collapsed()) {
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nsEventStatus status = nsEventStatus_eIgnore;
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WidgetQueryContentEvent textRect(true, eQueryTextRect, aWidget);
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textRect.InitForQueryTextRect(mSelection.StartOffset(),
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mSelection.Length());
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aWidget->DispatchEvent(&textRect, status);
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if (NS_WARN_IF(!textRect.mSucceeded)) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheTextRects(), FAILED, "
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"couldn't retrieve text rect of whole selected text", this));
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} else {
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mSelection.mRect = textRect.mReply.mRect;
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}
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}
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if (!mSelection.mFocus) {
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mFirstCharRect = mSelection.mFocusCharRect;
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} else if (!mSelection.mAnchor) {
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mFirstCharRect = mSelection.mAnchorCharRect;
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} else if (mTextRectArray.InRange(0)) {
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mFirstCharRect = mTextRectArray.GetRect(0);
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} else {
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LayoutDeviceIntRect charRect;
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if (NS_WARN_IF(!QueryCharRect(aWidget, 0, charRect))) {
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MOZ_LOG(sContentCacheLog, LogLevel::Error,
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("ContentCacheInChild: 0x%p CacheTextRects(), FAILED, "
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"couldn't retrieve first char rect", this));
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} else {
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mFirstCharRect = charRect;
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}
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}
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p CacheTextRects(), Succeeded, "
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"mText.Length()=%u, mTextRectArray={ mStart=%u, mRects.Length()=%u }, "
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"mSelection={ mAnchor=%u, mAnchorCharRect=%s, mFocus=%u, "
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"mFocusCharRect=%s, mRect=%s }, mFirstCharRect=%s",
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this, mText.Length(), mTextRectArray.mStart,
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mTextRectArray.mRects.Length(), mSelection.mAnchor,
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GetRectText(mSelection.mAnchorCharRect).get(), mSelection.mFocus,
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GetRectText(mSelection.mFocusCharRect).get(),
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GetRectText(mSelection.mRect).get(), GetRectText(mFirstCharRect).get()));
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return true;
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}
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|
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void
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ContentCacheInChild::SetSelection(nsIWidget* aWidget,
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uint32_t aStartOffset,
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uint32_t aLength,
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bool aReversed,
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const WritingMode& aWritingMode)
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{
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
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("ContentCacheInChild: 0x%p SetSelection(aStartOffset=%u, "
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"aLength=%u, aReversed=%s, aWritingMode=%s), mText.Length()=%u",
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this, aStartOffset, aLength, GetBoolName(aReversed),
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GetWritingModeName(aWritingMode).get(), mText.Length()));
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if (!aReversed) {
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mSelection.mAnchor = aStartOffset;
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mSelection.mFocus = aStartOffset + aLength;
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} else {
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mSelection.mAnchor = aStartOffset + aLength;
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mSelection.mFocus = aStartOffset;
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}
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mSelection.mWritingMode = aWritingMode;
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if (NS_WARN_IF(!CacheCaret(aWidget))) {
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return;
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}
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NS_WARN_IF(!CacheTextRects(aWidget));
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}
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|
|
/*****************************************************************************
|
|
* mozilla::ContentCacheInParent
|
|
*****************************************************************************/
|
|
|
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ContentCacheInParent::ContentCacheInParent()
|
|
: ContentCache()
|
|
, mCommitStringByRequest(nullptr)
|
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, mCompositionStart(UINT32_MAX)
|
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, mPendingEventsNeedingAck(0)
|
|
, mIsComposing(false)
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{
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}
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|
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void
|
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ContentCacheInParent::AssignContent(const ContentCache& aOther,
|
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const IMENotification* aNotification)
|
|
{
|
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mText = aOther.mText;
|
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mSelection = aOther.mSelection;
|
|
mFirstCharRect = aOther.mFirstCharRect;
|
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mCaret = aOther.mCaret;
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mTextRectArray = aOther.mTextRectArray;
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mEditorRect = aOther.mEditorRect;
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|
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MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p AssignContent(aNotification=%s), "
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"Succeeded, mText.Length()=%u, mSelection={ mAnchor=%u, mFocus=%u, "
|
|
"mWritingMode=%s, mAnchorCharRect=%s, mFocusCharRect=%s, mRect=%s }, "
|
|
"mFirstCharRect=%s, mCaret={ mOffset=%u, mRect=%s }, mTextRectArray={ "
|
|
"mStart=%u, mRects.Length()=%u }, mEditorRect=%s",
|
|
this, GetNotificationName(aNotification),
|
|
mText.Length(), mSelection.mAnchor, mSelection.mFocus,
|
|
GetWritingModeName(mSelection.mWritingMode).get(),
|
|
GetRectText(mSelection.mAnchorCharRect).get(),
|
|
GetRectText(mSelection.mFocusCharRect).get(),
|
|
GetRectText(mSelection.mRect).get(), GetRectText(mFirstCharRect).get(),
|
|
mCaret.mOffset, GetRectText(mCaret.mRect).get(), mTextRectArray.mStart,
|
|
mTextRectArray.mRects.Length(), GetRectText(mEditorRect).get()));
|
|
}
|
|
|
|
bool
|
|
ContentCacheInParent::HandleQueryContentEvent(WidgetQueryContentEvent& aEvent,
|
|
nsIWidget* aWidget) const
|
|
{
|
|
MOZ_ASSERT(aWidget);
|
|
|
|
aEvent.mSucceeded = false;
|
|
aEvent.mReply.mFocusedWidget = aWidget;
|
|
|
|
switch (aEvent.mMessage) {
|
|
case eQuerySelectedText:
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent("
|
|
"aEvent={ mMessage=eQuerySelectedText }, aWidget=0x%p)",
|
|
this, aWidget));
|
|
if (NS_WARN_IF(!IsSelectionValid())) {
|
|
// If content cache hasn't been initialized properly, make the query
|
|
// failed.
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED because mSelection is not valid", this));
|
|
return true;
|
|
}
|
|
aEvent.mReply.mOffset = mSelection.StartOffset();
|
|
if (mSelection.Collapsed()) {
|
|
aEvent.mReply.mString.Truncate(0);
|
|
} else {
|
|
if (NS_WARN_IF(mSelection.EndOffset() > mText.Length())) {
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED because mSelection.EndOffset()=%u is larger than "
|
|
"mText.Length()=%u",
|
|
this, mSelection.EndOffset(), mText.Length()));
|
|
return false;
|
|
}
|
|
aEvent.mReply.mString =
|
|
Substring(mText, aEvent.mReply.mOffset, mSelection.Length());
|
|
}
|
|
aEvent.mReply.mReversed = mSelection.Reversed();
|
|
aEvent.mReply.mHasSelection = true;
|
|
aEvent.mReply.mWritingMode = mSelection.mWritingMode;
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"Succeeded, aEvent={ mReply={ mOffset=%u, mString=\"%s\", "
|
|
"mReversed=%s, mHasSelection=%s, mWritingMode=%s } }",
|
|
this, aEvent.mReply.mOffset,
|
|
NS_ConvertUTF16toUTF8(aEvent.mReply.mString).get(),
|
|
GetBoolName(aEvent.mReply.mReversed),
|
|
GetBoolName(aEvent.mReply.mHasSelection),
|
|
GetWritingModeName(aEvent.mReply.mWritingMode).get()));
|
|
break;
|
|
case eQueryTextContent: {
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent("
|
|
"aEvent={ mMessage=eQueryTextContent, mInput={ mOffset=%u, "
|
|
"mLength=%u } }, aWidget=0x%p), mText.Length()=%u",
|
|
this, aEvent.mInput.mOffset,
|
|
aEvent.mInput.mLength, aWidget, mText.Length()));
|
|
uint32_t inputOffset = aEvent.mInput.mOffset;
|
|
uint32_t inputEndOffset =
|
|
std::min(aEvent.mInput.EndOffset(), mText.Length());
|
|
if (NS_WARN_IF(inputEndOffset < inputOffset)) {
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED because inputOffset=%u is larger than inputEndOffset=%u",
|
|
this, inputOffset, inputEndOffset));
|
|
return false;
|
|
}
|
|
aEvent.mReply.mOffset = inputOffset;
|
|
aEvent.mReply.mString =
|
|
Substring(mText, inputOffset, inputEndOffset - inputOffset);
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"Succeeded, aEvent={ mReply={ mOffset=%u, mString.Length()=%u } }",
|
|
this, aEvent.mReply.mOffset, aEvent.mReply.mString.Length()));
|
|
break;
|
|
}
|
|
case eQueryTextRect:
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent("
|
|
"aEvent={ mMessage=eQueryTextRect, mInput={ mOffset=%u, "
|
|
"mLength=%u } }, aWidget=0x%p), mText.Length()=%u",
|
|
this, aEvent.mInput.mOffset, aEvent.mInput.mLength, aWidget,
|
|
mText.Length()));
|
|
if (NS_WARN_IF(!IsSelectionValid())) {
|
|
// If content cache hasn't been initialized properly, make the query
|
|
// failed.
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED because mSelection is not valid", this));
|
|
return true;
|
|
}
|
|
if (aEvent.mInput.mLength) {
|
|
if (NS_WARN_IF(!GetUnionTextRects(aEvent.mInput.mOffset,
|
|
aEvent.mInput.mLength,
|
|
aEvent.mReply.mRect))) {
|
|
// XXX We don't have cache for this request.
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED to get union rect", this));
|
|
return false;
|
|
}
|
|
} else {
|
|
// If the length is 0, we should return caret rect instead.
|
|
if (NS_WARN_IF(!GetCaretRect(aEvent.mInput.mOffset,
|
|
aEvent.mReply.mRect))) {
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED to get caret rect", this));
|
|
return false;
|
|
}
|
|
}
|
|
if (aEvent.mInput.mOffset < mText.Length()) {
|
|
aEvent.mReply.mString =
|
|
Substring(mText, aEvent.mInput.mOffset,
|
|
mText.Length() >= aEvent.mInput.EndOffset() ?
|
|
aEvent.mInput.mLength : UINT32_MAX);
|
|
} else {
|
|
aEvent.mReply.mString.Truncate(0);
|
|
}
|
|
aEvent.mReply.mOffset = aEvent.mInput.mOffset;
|
|
// XXX This may be wrong if storing range isn't in the selection range.
|
|
aEvent.mReply.mWritingMode = mSelection.mWritingMode;
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"Succeeded, aEvent={ mReply={ mOffset=%u, mString=\"%s\", "
|
|
"mWritingMode=%s, mRect=%s } }",
|
|
this, aEvent.mReply.mOffset,
|
|
NS_ConvertUTF16toUTF8(aEvent.mReply.mString).get(),
|
|
GetWritingModeName(aEvent.mReply.mWritingMode).get(),
|
|
GetRectText(aEvent.mReply.mRect).get()));
|
|
break;
|
|
case eQueryCaretRect:
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent("
|
|
"aEvent={ mMessage=eQueryCaretRect, mInput={ mOffset=%u } }, "
|
|
"aWidget=0x%p), mText.Length()=%u",
|
|
this, aEvent.mInput.mOffset, aWidget, mText.Length()));
|
|
if (NS_WARN_IF(!IsSelectionValid())) {
|
|
// If content cache hasn't been initialized properly, make the query
|
|
// failed.
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED because mSelection is not valid", this));
|
|
return true;
|
|
}
|
|
if (NS_WARN_IF(!GetCaretRect(aEvent.mInput.mOffset,
|
|
aEvent.mReply.mRect))) {
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Error,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"FAILED to get caret rect", this));
|
|
return false;
|
|
}
|
|
aEvent.mReply.mOffset = aEvent.mInput.mOffset;
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"Succeeded, aEvent={ mReply={ mOffset=%u, mRect=%s } }",
|
|
this, aEvent.mReply.mOffset, GetRectText(aEvent.mReply.mRect).get()));
|
|
break;
|
|
case eQueryEditorRect:
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent("
|
|
"aEvent={ mMessage=eQueryEditorRect }, aWidget=0x%p)",
|
|
this, aWidget));
|
|
aEvent.mReply.mRect = mEditorRect;
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p HandleQueryContentEvent(), "
|
|
"Succeeded, aEvent={ mReply={ mRect=%s } }",
|
|
this, GetRectText(aEvent.mReply.mRect).get()));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
aEvent.mSucceeded = true;
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ContentCacheInParent::GetTextRect(uint32_t aOffset,
|
|
LayoutDeviceIntRect& aTextRect) const
|
|
{
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p GetTextRect(aOffset=%u), "
|
|
"mTextRectArray={ mStart=%u, mRects.Length()=%u }, "
|
|
"mSelection={ mAnchor=%u, mFocus=%u }",
|
|
this, aOffset, mTextRectArray.mStart, mTextRectArray.mRects.Length(),
|
|
mSelection.mAnchor, mSelection.mFocus));
|
|
|
|
if (!aOffset) {
|
|
NS_WARN_IF(mFirstCharRect.IsEmpty());
|
|
aTextRect = mFirstCharRect;
|
|
return !aTextRect.IsEmpty();
|
|
}
|
|
if (aOffset == mSelection.mAnchor) {
|
|
NS_WARN_IF(mSelection.mAnchorCharRect.IsEmpty());
|
|
aTextRect = mSelection.mAnchorCharRect;
|
|
return !aTextRect.IsEmpty();
|
|
}
|
|
if (aOffset == mSelection.mFocus) {
|
|
NS_WARN_IF(mSelection.mFocusCharRect.IsEmpty());
|
|
aTextRect = mSelection.mFocusCharRect;
|
|
return !aTextRect.IsEmpty();
|
|
}
|
|
|
|
if (!mTextRectArray.InRange(aOffset)) {
|
|
aTextRect.SetEmpty();
|
|
return false;
|
|
}
|
|
aTextRect = mTextRectArray.GetRect(aOffset);
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ContentCacheInParent::GetUnionTextRects(
|
|
uint32_t aOffset,
|
|
uint32_t aLength,
|
|
LayoutDeviceIntRect& aUnionTextRect) const
|
|
{
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p GetUnionTextRects(aOffset=%u, "
|
|
"aLength=%u), mTextRectArray={ mStart=%u, mRects.Length()=%u }, "
|
|
"mSelection={ mAnchor=%u, mFocus=%u }",
|
|
this, aOffset, aLength, mTextRectArray.mStart,
|
|
mTextRectArray.mRects.Length(), mSelection.mAnchor, mSelection.mFocus));
|
|
|
|
CheckedInt<uint32_t> endOffset =
|
|
CheckedInt<uint32_t>(aOffset) + aLength;
|
|
if (!endOffset.isValid()) {
|
|
return false;
|
|
}
|
|
|
|
if (!mSelection.Collapsed() &&
|
|
aOffset == mSelection.StartOffset() && aLength == mSelection.Length()) {
|
|
NS_WARN_IF(mSelection.mRect.IsEmpty());
|
|
aUnionTextRect = mSelection.mRect;
|
|
return !aUnionTextRect.IsEmpty();
|
|
}
|
|
|
|
if (aLength == 1) {
|
|
if (!aOffset) {
|
|
NS_WARN_IF(mFirstCharRect.IsEmpty());
|
|
aUnionTextRect = mFirstCharRect;
|
|
return !aUnionTextRect.IsEmpty();
|
|
}
|
|
if (aOffset == mSelection.mAnchor) {
|
|
NS_WARN_IF(mSelection.mAnchorCharRect.IsEmpty());
|
|
aUnionTextRect = mSelection.mAnchorCharRect;
|
|
return !aUnionTextRect.IsEmpty();
|
|
}
|
|
if (aOffset == mSelection.mFocus) {
|
|
NS_WARN_IF(mSelection.mFocusCharRect.IsEmpty());
|
|
aUnionTextRect = mSelection.mFocusCharRect;
|
|
return !aUnionTextRect.IsEmpty();
|
|
}
|
|
}
|
|
|
|
// Even if some text rects are not cached of the queried range,
|
|
// we should return union rect when the first character's rect is cached
|
|
// since the first character rect is important and the others are not so
|
|
// in most cases.
|
|
|
|
if (!aOffset && aOffset != mSelection.mAnchor &&
|
|
aOffset != mSelection.mFocus && !mTextRectArray.InRange(aOffset)) {
|
|
// The first character rect isn't cached.
|
|
return false;
|
|
}
|
|
|
|
if (mTextRectArray.IsOverlappingWith(aOffset, aLength)) {
|
|
aUnionTextRect =
|
|
mTextRectArray.GetUnionRectAsFarAsPossible(aOffset, aLength);
|
|
} else {
|
|
aUnionTextRect.SetEmpty();
|
|
}
|
|
|
|
if (!aOffset) {
|
|
aUnionTextRect = aUnionTextRect.Union(mFirstCharRect);
|
|
}
|
|
if (aOffset <= mSelection.mAnchor && mSelection.mAnchor < endOffset.value()) {
|
|
aUnionTextRect = aUnionTextRect.Union(mSelection.mAnchorCharRect);
|
|
}
|
|
if (aOffset <= mSelection.mFocus && mSelection.mFocus < endOffset.value()) {
|
|
aUnionTextRect = aUnionTextRect.Union(mSelection.mFocusCharRect);
|
|
}
|
|
return !aUnionTextRect.IsEmpty();
|
|
}
|
|
|
|
bool
|
|
ContentCacheInParent::GetCaretRect(uint32_t aOffset,
|
|
LayoutDeviceIntRect& aCaretRect) const
|
|
{
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p GetCaretRect(aOffset=%u), "
|
|
"mCaret={ mOffset=%u, mRect=%s, IsValid()=%s }, mTextRectArray={ "
|
|
"mStart=%u, mRects.Length()=%u }, mSelection={ mAnchor=%u, mFocus=%u, "
|
|
"mWritingMode=%s, mAnchorCharRect=%s, mFocusCharRect=%s }, "
|
|
"mFirstCharRect=%s",
|
|
this, aOffset, mCaret.mOffset, GetRectText(mCaret.mRect).get(),
|
|
GetBoolName(mCaret.IsValid()), mTextRectArray.mStart,
|
|
mTextRectArray.mRects.Length(), mSelection.mAnchor, mSelection.mFocus,
|
|
GetWritingModeName(mSelection.mWritingMode).get(),
|
|
GetRectText(mSelection.mAnchorCharRect).get(),
|
|
GetRectText(mSelection.mFocusCharRect).get(),
|
|
GetRectText(mFirstCharRect).get()));
|
|
|
|
if (mCaret.IsValid() && mCaret.mOffset == aOffset) {
|
|
aCaretRect = mCaret.mRect;
|
|
return true;
|
|
}
|
|
|
|
// Guess caret rect from the text rect if it's stored.
|
|
if (!GetTextRect(aOffset, aCaretRect)) {
|
|
// There might be previous character rect in the cache. If so, we can
|
|
// guess the caret rect with it.
|
|
if (!aOffset || !GetTextRect(aOffset - 1, aCaretRect)) {
|
|
aCaretRect.SetEmpty();
|
|
return false;
|
|
}
|
|
|
|
if (mSelection.mWritingMode.IsVertical()) {
|
|
aCaretRect.y = aCaretRect.YMost();
|
|
} else {
|
|
// XXX bidi-unaware.
|
|
aCaretRect.x = aCaretRect.XMost();
|
|
}
|
|
}
|
|
|
|
// XXX This is not bidi aware because we don't cache each character's
|
|
// direction. However, this is usually used by IME, so, assuming the
|
|
// character is in LRT context must not cause any problem.
|
|
if (mSelection.mWritingMode.IsVertical()) {
|
|
aCaretRect.height = mCaret.IsValid() ? mCaret.mRect.height : 1;
|
|
} else {
|
|
aCaretRect.width = mCaret.IsValid() ? mCaret.mRect.width : 1;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ContentCacheInParent::OnCompositionEvent(const WidgetCompositionEvent& aEvent)
|
|
{
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p OnCompositionEvent(aEvent={ "
|
|
"mMessage=%s, mData=\"%s\" (Length()=%u), mRanges->Length()=%u }), "
|
|
"mPendingEventsNeedingAck=%u, mIsComposing=%s, "
|
|
"mCommitStringByRequest=0x%p",
|
|
this, ToChar(aEvent.mMessage),
|
|
NS_ConvertUTF16toUTF8(aEvent.mData).get(), aEvent.mData.Length(),
|
|
aEvent.mRanges ? aEvent.mRanges->Length() : 0, mPendingEventsNeedingAck,
|
|
GetBoolName(mIsComposing), mCommitStringByRequest));
|
|
|
|
// We must be able to simulate the selection because
|
|
// we might not receive selection updates in time
|
|
if (!mIsComposing) {
|
|
mCompositionStart = mSelection.StartOffset();
|
|
}
|
|
|
|
mIsComposing = !aEvent.CausesDOMCompositionEndEvent();
|
|
|
|
// During REQUEST_TO_COMMIT_COMPOSITION or REQUEST_TO_CANCEL_COMPOSITION,
|
|
// widget usually sends a eCompositionChange and/or eCompositionCommit event
|
|
// to finalize or clear the composition, respectively. In this time,
|
|
// we need to intercept all composition events here and pass the commit
|
|
// string for returning to the remote process as a result of
|
|
// RequestIMEToCommitComposition(). Then, eCommitComposition event will
|
|
// be dispatched with the committed string in the remote process internally.
|
|
if (mCommitStringByRequest) {
|
|
MOZ_ASSERT(aEvent.mMessage == eCompositionChange ||
|
|
aEvent.mMessage == eCompositionCommit);
|
|
*mCommitStringByRequest = aEvent.mData;
|
|
return false;
|
|
}
|
|
|
|
mPendingEventsNeedingAck++;
|
|
return true;
|
|
}
|
|
|
|
void
|
|
ContentCacheInParent::OnSelectionEvent(
|
|
const WidgetSelectionEvent& aSelectionEvent)
|
|
{
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p OnSelectionEvent(aEvent={ "
|
|
"mMessage=%s, mOffset=%u, mLength=%u, mReversed=%s, "
|
|
"mExpandToClusterBoundary=%s, mUseNativeLineBreak=%s }), "
|
|
"mPendingEventsNeedingAck=%u, mIsComposing=%s",
|
|
this, ToChar(aSelectionEvent.mMessage),
|
|
aSelectionEvent.mOffset, aSelectionEvent.mLength,
|
|
GetBoolName(aSelectionEvent.mReversed),
|
|
GetBoolName(aSelectionEvent.mExpandToClusterBoundary),
|
|
GetBoolName(aSelectionEvent.mUseNativeLineBreak), mPendingEventsNeedingAck,
|
|
GetBoolName(mIsComposing)));
|
|
|
|
mPendingEventsNeedingAck++;
|
|
}
|
|
|
|
void
|
|
ContentCacheInParent::OnEventNeedingAckHandled(nsIWidget* aWidget,
|
|
EventMessage aMessage)
|
|
{
|
|
// This is called when the child process receives WidgetCompositionEvent or
|
|
// WidgetSelectionEvent.
|
|
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p OnEventNeedingAckHandled(aWidget=0x%p, "
|
|
"aMessage=%s), mPendingEventsNeedingAck=%u",
|
|
this, aWidget, ToChar(aMessage), mPendingEventsNeedingAck));
|
|
|
|
MOZ_RELEASE_ASSERT(mPendingEventsNeedingAck > 0);
|
|
if (--mPendingEventsNeedingAck) {
|
|
return;
|
|
}
|
|
|
|
FlushPendingNotifications(aWidget);
|
|
}
|
|
|
|
bool
|
|
ContentCacheInParent::RequestIMEToCommitComposition(nsIWidget* aWidget,
|
|
bool aCancel,
|
|
nsAString& aCommittedString)
|
|
{
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
("ContentCacheInParent: 0x%p RequestToCommitComposition(aWidget=%p, "
|
|
"aCancel=%s), mIsComposing=%s, mCommitStringByRequest=%p",
|
|
this, aWidget, GetBoolName(aCancel), GetBoolName(mIsComposing),
|
|
mCommitStringByRequest));
|
|
|
|
MOZ_ASSERT(!mCommitStringByRequest);
|
|
|
|
RefPtr<TextComposition> composition =
|
|
IMEStateManager::GetTextCompositionFor(aWidget);
|
|
if (NS_WARN_IF(!composition)) {
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Warning,
|
|
(" ContentCacheInParent: 0x%p RequestToCommitComposition(), "
|
|
"does nothing due to no composition", this));
|
|
return false;
|
|
}
|
|
|
|
mCommitStringByRequest = &aCommittedString;
|
|
|
|
aWidget->NotifyIME(IMENotification(aCancel ? REQUEST_TO_CANCEL_COMPOSITION :
|
|
REQUEST_TO_COMMIT_COMPOSITION));
|
|
|
|
mCommitStringByRequest = nullptr;
|
|
|
|
MOZ_LOG(sContentCacheLog, LogLevel::Info,
|
|
(" ContentCacheInParent: 0x%p RequestToCommitComposition(), "
|
|
"mIsComposing=%s, the composition %s committed synchronously",
|
|
this, GetBoolName(mIsComposing),
|
|
composition->Destroyed() ? "WAS" : "has NOT been"));
|
|
|
|
if (!composition->Destroyed()) {
|
|
// When the composition isn't committed synchronously, the remote process's
|
|
// TextComposition instance will synthesize commit events and wait to
|
|
// receive delayed composition events. When TextComposition instances both
|
|
// in this process and the remote process will be destroyed when delayed
|
|
// composition events received. TextComposition instance in the parent
|
|
// process will dispatch following composition events and be destroyed
|
|
// normally. On the other hand, TextComposition instance in the remote
|
|
// process won't dispatch following composition events and will be
|
|
// destroyed by IMEStateManager::DispatchCompositionEvent().
|
|
return false;
|
|
}
|
|
|
|
// When the composition is committed synchronously, the commit string will be
|
|
// returned to the remote process. Then, PuppetWidget will dispatch
|
|
// eCompositionCommit event with the returned commit string (i.e., the value
|
|
// is aCommittedString of this method). Finally, TextComposition instance in
|
|
// the remote process will be destroyed by
|
|
// IMEStateManager::DispatchCompositionEvent() at receiving the
|
|
// eCompositionCommit event (Note that TextComposition instance in this
|
|
// process was already destroyed).
|
|
return true;
|
|
}
|
|
|
|
void
|
|
ContentCacheInParent::MaybeNotifyIME(nsIWidget* aWidget,
|
|
const IMENotification& aNotification)
|
|
{
|
|
if (!mPendingEventsNeedingAck) {
|
|
IMEStateManager::NotifyIME(aNotification, aWidget, true);
|
|
return;
|
|
}
|
|
|
|
switch (aNotification.mMessage) {
|
|
case NOTIFY_IME_OF_SELECTION_CHANGE:
|
|
mPendingSelectionChange.MergeWith(aNotification);
|
|
break;
|
|
case NOTIFY_IME_OF_TEXT_CHANGE:
|
|
mPendingTextChange.MergeWith(aNotification);
|
|
break;
|
|
case NOTIFY_IME_OF_POSITION_CHANGE:
|
|
mPendingLayoutChange.MergeWith(aNotification);
|
|
break;
|
|
case NOTIFY_IME_OF_COMPOSITION_UPDATE:
|
|
mPendingCompositionUpdate.MergeWith(aNotification);
|
|
break;
|
|
default:
|
|
MOZ_CRASH("Unsupported notification");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
ContentCacheInParent::FlushPendingNotifications(nsIWidget* aWidget)
|
|
{
|
|
MOZ_ASSERT(!mPendingEventsNeedingAck);
|
|
|
|
// New notifications which are notified during flushing pending notifications
|
|
// should be merged again.
|
|
mPendingEventsNeedingAck++;
|
|
|
|
nsCOMPtr<nsIWidget> kungFuDeathGrip(aWidget);
|
|
|
|
// First, text change notification should be sent because selection change
|
|
// notification notifies IME of current selection range in the latest content.
|
|
// So, IME may need the latest content before that.
|
|
if (mPendingTextChange.HasNotification()) {
|
|
IMENotification notification(mPendingTextChange);
|
|
if (!aWidget->Destroyed()) {
|
|
mPendingTextChange.Clear();
|
|
IMEStateManager::NotifyIME(notification, aWidget, true);
|
|
}
|
|
}
|
|
|
|
if (mPendingSelectionChange.HasNotification()) {
|
|
IMENotification notification(mPendingSelectionChange);
|
|
if (!aWidget->Destroyed()) {
|
|
mPendingSelectionChange.Clear();
|
|
IMEStateManager::NotifyIME(notification, aWidget, true);
|
|
}
|
|
}
|
|
|
|
// Layout change notification should be notified after selection change
|
|
// notification because IME may want to query position of new caret position.
|
|
if (mPendingLayoutChange.HasNotification()) {
|
|
IMENotification notification(mPendingLayoutChange);
|
|
if (!aWidget->Destroyed()) {
|
|
mPendingLayoutChange.Clear();
|
|
IMEStateManager::NotifyIME(notification, aWidget, true);
|
|
}
|
|
}
|
|
|
|
// Finally, send composition update notification because it notifies IME of
|
|
// finishing handling whole sending events.
|
|
if (mPendingCompositionUpdate.HasNotification()) {
|
|
IMENotification notification(mPendingCompositionUpdate);
|
|
if (!aWidget->Destroyed()) {
|
|
mPendingCompositionUpdate.Clear();
|
|
IMEStateManager::NotifyIME(notification, aWidget, true);
|
|
}
|
|
}
|
|
|
|
if (!--mPendingEventsNeedingAck && !aWidget->Destroyed() &&
|
|
(mPendingTextChange.HasNotification() ||
|
|
mPendingSelectionChange.HasNotification() ||
|
|
mPendingLayoutChange.HasNotification() ||
|
|
mPendingCompositionUpdate.HasNotification())) {
|
|
FlushPendingNotifications(aWidget);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* mozilla::ContentCache::TextRectArray
|
|
*****************************************************************************/
|
|
|
|
LayoutDeviceIntRect
|
|
ContentCache::TextRectArray::GetRect(uint32_t aOffset) const
|
|
{
|
|
LayoutDeviceIntRect rect;
|
|
if (InRange(aOffset)) {
|
|
rect = mRects[aOffset - mStart];
|
|
}
|
|
return rect;
|
|
}
|
|
|
|
LayoutDeviceIntRect
|
|
ContentCache::TextRectArray::GetUnionRect(uint32_t aOffset,
|
|
uint32_t aLength) const
|
|
{
|
|
LayoutDeviceIntRect rect;
|
|
if (!InRange(aOffset, aLength)) {
|
|
return rect;
|
|
}
|
|
for (uint32_t i = 0; i < aLength; i++) {
|
|
rect = rect.Union(mRects[aOffset - mStart + i]);
|
|
}
|
|
return rect;
|
|
}
|
|
|
|
LayoutDeviceIntRect
|
|
ContentCache::TextRectArray::GetUnionRectAsFarAsPossible(
|
|
uint32_t aOffset,
|
|
uint32_t aLength) const
|
|
{
|
|
LayoutDeviceIntRect rect;
|
|
if (!IsOverlappingWith(aOffset, aLength)) {
|
|
return rect;
|
|
}
|
|
uint32_t startOffset = std::max(aOffset, mStart);
|
|
uint32_t endOffset = std::min(aOffset + aLength, EndOffset());
|
|
for (uint32_t i = 0; i < endOffset - startOffset; i++) {
|
|
rect = rect.Union(mRects[startOffset - mStart + i]);
|
|
}
|
|
return rect;
|
|
}
|
|
|
|
} // namespace mozilla
|