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/****************************************************************************
**
** Copyright (C) 2016 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 "user_resource_controller_host.h"
#include "common/qt_messages.h"
#include "type_conversion.h"
#include "web_contents_adapter.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_process_host_observer.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_observer.h"
namespace QtWebEngineCore {
class UserResourceControllerHost::WebContentsObserverHelper : public content::WebContentsObserver
{
public:
WebContentsObserverHelper(UserResourceControllerHost *, content::WebContents *);
// WebContentsObserver overrides:
void RenderFrameCreated(content::RenderFrameHost *renderFrameHost) override;
void RenderFrameHostChanged(content::RenderFrameHost *oldHost, content::RenderFrameHost *newHost) override;
void WebContentsDestroyed() override;
private:
UserResourceControllerHost *m_controllerHost;
};
UserResourceControllerHost::WebContentsObserverHelper::WebContentsObserverHelper(UserResourceControllerHost *controller,
content::WebContents *contents)
: content::WebContentsObserver(contents)
, m_controllerHost(controller)
{
}
void UserResourceControllerHost::WebContentsObserverHelper::RenderFrameCreated(content::RenderFrameHost *renderFrameHost)
{
content::WebContents *contents = web_contents();
const QList<UserScript> scripts = m_controllerHost->m_perContentsScripts.value(contents);
for (const UserScript &script : scripts)
renderFrameHost->Send(new RenderFrameObserverHelper_AddScript(renderFrameHost->GetRoutingID(), script.data()));
}
void UserResourceControllerHost::WebContentsObserverHelper::RenderFrameHostChanged(content::RenderFrameHost *oldHost,
content::RenderFrameHost *newHost)
{
if (oldHost)
oldHost->Send(new RenderFrameObserverHelper_ClearScripts(oldHost->GetRoutingID()));
}
void UserResourceControllerHost::WebContentsObserverHelper::WebContentsDestroyed()
{
m_controllerHost->webContentsDestroyed(web_contents());
delete this;
}
class UserResourceControllerHost::RenderProcessObserverHelper : public content::RenderProcessHostObserver
{
public:
RenderProcessObserverHelper(UserResourceControllerHost *);
void RenderProcessHostDestroyed(content::RenderProcessHost *) override;
private:
UserResourceControllerHost *m_controllerHost;
};
UserResourceControllerHost::RenderProcessObserverHelper::RenderProcessObserverHelper(UserResourceControllerHost *controller)
: m_controllerHost(controller)
{
}
void UserResourceControllerHost::RenderProcessObserverHelper::RenderProcessHostDestroyed(content::RenderProcessHost *renderer)
{
Q_ASSERT(m_controllerHost);
m_controllerHost->m_observedProcesses.remove(renderer);
}
void UserResourceControllerHost::addUserScript(const UserScript &script, WebContentsAdapter *adapter)
{
if (script.isNull())
return;
// Global scripts should be dispatched to all our render processes.
const bool isProfileWideScript = !adapter;
if (isProfileWideScript) {
if (!m_profileWideScripts.contains(script)) {
m_profileWideScripts.append(script);
for (content::RenderProcessHost *renderer : qAsConst(m_observedProcesses))
renderer->Send(new UserResourceController_AddScript(script.data()));
}
} else {
content::WebContents *contents = adapter->webContents();
ContentsScriptsMap::iterator it = m_perContentsScripts.find(contents);
if (it == m_perContentsScripts.end()) {
// We need to keep track of RenderView/RenderViewHost changes for a given contents
// in order to make sure the scripts stay in sync
new WebContentsObserverHelper(this, contents);
it = m_perContentsScripts.insert(contents, (QList<UserScript>() << script));
} else {
QList<UserScript> currentScripts = it.value();
if (!currentScripts.contains(script)) {
currentScripts.append(script);
m_perContentsScripts.insert(contents, currentScripts);
}
}
contents->GetRenderViewHost()->Send(
new RenderFrameObserverHelper_AddScript(
contents->GetRenderViewHost()->GetMainFrame()->GetRoutingID(),
script.data()));
}
}
bool UserResourceControllerHost::removeUserScript(const UserScript &script, WebContentsAdapter *adapter)
{
if (script.isNull())
return false;
const bool isProfileWideScript = !adapter;
if (isProfileWideScript) {
QList<UserScript>::iterator it = std::find(m_profileWideScripts.begin(), m_profileWideScripts.end(), script);
if (it == m_profileWideScripts.end())
return false;
for (content::RenderProcessHost *renderer : qAsConst(m_observedProcesses))
renderer->Send(new UserResourceController_RemoveScript((*it).data()));
m_profileWideScripts.erase(it);
} else {
content::WebContents *contents = adapter->webContents();
if (!m_perContentsScripts.contains(contents))
return false;
QList<UserScript> &list(m_perContentsScripts[contents]);
QList<UserScript>::iterator it = std::find(list.begin(), list.end(), script);
if (it == list.end())
return false;
contents->GetRenderViewHost()->Send(
new RenderFrameObserverHelper_RemoveScript(contents->GetMainFrame()->GetRoutingID(), (*it).data()));
list.erase(it);
}
return true;
}
void UserResourceControllerHost::clearAllScripts(WebContentsAdapter *adapter)
{
const bool isProfileWideScript = !adapter;
if (isProfileWideScript) {
m_profileWideScripts.clear();
for (content::RenderProcessHost *renderer : qAsConst(m_observedProcesses))
renderer->Send(new UserResourceController_ClearScripts);
} else {
content::WebContents *contents = adapter->webContents();
m_perContentsScripts.remove(contents);
contents->GetRenderViewHost()->Send(
new RenderFrameObserverHelper_ClearScripts(contents->GetMainFrame()->GetRoutingID()));
}
}
void UserResourceControllerHost::reserve(WebContentsAdapter *adapter, int count)
{
const bool isProfileWideScript = !adapter;
if (isProfileWideScript)
m_profileWideScripts.reserve(count);
else
m_perContentsScripts[adapter->webContents()].reserve(count);
}
void UserResourceControllerHost::renderProcessStartedWithHost(content::RenderProcessHost *renderer)
{
if (m_observedProcesses.contains(renderer))
return;
if (m_renderProcessObserver.isNull())
m_renderProcessObserver.reset(new RenderProcessObserverHelper(this));
renderer->AddObserver(m_renderProcessObserver.data());
m_observedProcesses.insert(renderer);
for (const UserScript &script : qAsConst(m_profileWideScripts))
renderer->Send(new UserResourceController_AddScript(script.data()));
}
void UserResourceControllerHost::webContentsDestroyed(content::WebContents *contents)
{
m_perContentsScripts.remove(contents);
}
UserResourceControllerHost::UserResourceControllerHost()
{
}
UserResourceControllerHost::~UserResourceControllerHost()
{
for (content::RenderProcessHost *renderer : qAsConst(m_observedProcesses))
renderer->RemoveObserver(m_renderProcessObserver.data());
}
} // namespace
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