| /**************************************************************************** |
| ** |
| ** Copyright (C) 2019 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtWebEngine module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "find_text_helper.h" |
| #include "qwebenginefindtextresult.h" |
| #include "type_conversion.h" |
| #include "web_contents_adapter_client.h" |
| |
| #include "content/public/browser/web_contents.h" |
| #include "third_party/blink/public/mojom/frame/find_in_page.mojom.h" |
| |
| namespace QtWebEngineCore { |
| |
| // static |
| int FindTextHelper::m_findRequestIdCounter = -1; |
| |
| FindTextHelper::FindTextHelper(content::WebContents *webContents, WebContentsAdapterClient *viewClient) |
| : m_webContents(webContents) |
| , m_viewClient(viewClient) |
| , m_currentFindRequestId(m_findRequestIdCounter++) |
| , m_lastCompletedFindRequestId(m_currentFindRequestId) |
| { |
| } |
| |
| FindTextHelper::~FindTextHelper() |
| { |
| if (isFindTextInProgress()) |
| stopFinding(); |
| } |
| |
| void FindTextHelper::startFinding(const QString &findText, bool caseSensitively, bool findBackward, const QWebEngineCallback<bool> resultCallback) |
| { |
| if (findText.isEmpty()) { |
| stopFinding(); |
| m_viewClient->findTextFinished(QWebEngineFindTextResult()); |
| m_widgetCallbacks.invokeEmpty(resultCallback); |
| return; |
| } |
| |
| startFinding(findText, caseSensitively, findBackward); |
| m_widgetCallbacks.registerCallback(m_currentFindRequestId, resultCallback); |
| } |
| |
| void FindTextHelper::startFinding(const QString &findText, bool caseSensitively, bool findBackward, const QJSValue &resultCallback) |
| { |
| if (findText.isEmpty()) { |
| stopFinding(); |
| m_viewClient->findTextFinished(QWebEngineFindTextResult()); |
| if (!resultCallback.isUndefined()) { |
| QJSValueList args; |
| args.append(QJSValue(0)); |
| const_cast<QJSValue&>(resultCallback).call(args); |
| } |
| return; |
| } |
| |
| startFinding(findText, caseSensitively, findBackward); |
| if (!resultCallback.isUndefined()) |
| m_quickCallbacks.insert(m_currentFindRequestId, resultCallback); |
| } |
| |
| void FindTextHelper::startFinding(const QString &findText, bool caseSensitively, bool findBackward) |
| { |
| if (findText.isEmpty()) { |
| stopFinding(); |
| return; |
| } |
| |
| if (m_currentFindRequestId > m_lastCompletedFindRequestId) { |
| // There are cases where the render process will overwrite a previous request |
| // with the new search and we'll have a dangling callback, leaving the application |
| // waiting for it forever. |
| // Assume that any unfinished find has been unsuccessful when a new one is started |
| // to cover that case. |
| m_lastCompletedFindRequestId = m_currentFindRequestId; |
| m_viewClient->findTextFinished(QWebEngineFindTextResult()); |
| invokeResultCallback(m_currentFindRequestId, 0); |
| } |
| |
| blink::mojom::FindOptionsPtr options = blink::mojom::FindOptions::New(); |
| options->forward = !findBackward; |
| options->match_case = caseSensitively; |
| options->find_next = findText == m_previousFindText; |
| m_previousFindText = findText; |
| |
| m_currentFindRequestId = m_findRequestIdCounter++; |
| m_webContents->Find(m_currentFindRequestId, toString16(findText), std::move(options)); |
| } |
| |
| void FindTextHelper::stopFinding() |
| { |
| m_lastCompletedFindRequestId = m_currentFindRequestId; |
| m_previousFindText = QString(); |
| m_webContents->StopFinding(content::STOP_FIND_ACTION_KEEP_SELECTION); |
| } |
| |
| bool FindTextHelper::isFindTextInProgress() const |
| { |
| return m_currentFindRequestId != m_lastCompletedFindRequestId; |
| } |
| |
| void FindTextHelper::handleFindReply(content::WebContents *source, int requestId, int numberOfMatches, |
| const gfx::Rect &selectionRect, int activeMatch, bool finalUpdate) |
| { |
| Q_UNUSED(selectionRect); |
| |
| Q_ASSERT(source == m_webContents); |
| |
| if (!finalUpdate || requestId <= m_lastCompletedFindRequestId) |
| return; |
| |
| Q_ASSERT(m_currentFindRequestId == requestId); |
| m_lastCompletedFindRequestId = requestId; |
| m_viewClient->findTextFinished(QWebEngineFindTextResult(numberOfMatches, activeMatch)); |
| invokeResultCallback(requestId, numberOfMatches); |
| } |
| |
| void FindTextHelper::handleLoadCommitted() |
| { |
| // Make sure that we don't set the findNext WebFindOptions on a new frame. |
| m_previousFindText = QString(); |
| } |
| |
| void FindTextHelper::invokeResultCallback(int requestId, int numberOfMatches) |
| { |
| if (m_quickCallbacks.contains(requestId)) { |
| QJSValue resultCallback = m_quickCallbacks.take(requestId); |
| QJSValueList args; |
| args.append(QJSValue(numberOfMatches)); |
| resultCallback.call(args); |
| } else { |
| m_widgetCallbacks.invoke(requestId, numberOfMatches > 0); |
| } |
| } |
| |
| } // namespace QtWebEngineCore |