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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "user_script_controller_host.h"
#include "common/qt_messages.h"
#include "type_conversion.h"
#include "web_contents_adapter.h"
#include "web_contents_adapter_p.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/web_contents.h"
#include "content/public/browser/web_contents_observer.h"
namespace QtWebEngineCore {
class UserScriptControllerHost::WebContentsObserverHelper : public content::WebContentsObserver {
public:
WebContentsObserverHelper(UserScriptControllerHost *, content::WebContents *);
// WebContentsObserver overrides:
void RenderViewCreated(content::RenderViewHost *renderViewHost) override;
void RenderViewHostChanged(content::RenderViewHost *oldHost, content::RenderViewHost *newHost) override;
void WebContentsDestroyed() override;
private:
UserScriptControllerHost *m_controllerHost;
};
UserScriptControllerHost::WebContentsObserverHelper::WebContentsObserverHelper(UserScriptControllerHost *controller, content::WebContents *contents)
: content::WebContentsObserver(contents)
, m_controllerHost(controller)
{
}
void UserScriptControllerHost::WebContentsObserverHelper::RenderViewCreated(content::RenderViewHost *renderViewHost)
{
content::WebContents *contents = web_contents();
Q_FOREACH (const UserScript &script, m_controllerHost->m_perContentsScripts.value(contents))
renderViewHost->Send(new RenderViewObserverHelper_AddScript(renderViewHost->GetRoutingID(), script.data()));
}
void UserScriptControllerHost::WebContentsObserverHelper::RenderViewHostChanged(content::RenderViewHost *oldHost,
content::RenderViewHost *newHost)
{
oldHost->Send(new RenderViewObserverHelper_ClearScripts(oldHost->GetRoutingID()));
content::WebContents *contents = web_contents();
Q_FOREACH (const UserScript &script, m_controllerHost->m_perContentsScripts.value(contents))
newHost->Send(new RenderViewObserverHelper_AddScript(newHost->GetRoutingID(), script.data()));
}
void UserScriptControllerHost::WebContentsObserverHelper::WebContentsDestroyed()
{
m_controllerHost->webContentsDestroyed(web_contents());
delete this;
}
class UserScriptControllerHost::RenderProcessObserverHelper : public content::RenderProcessHostObserver {
public:
RenderProcessObserverHelper(UserScriptControllerHost *);
virtual void RenderProcessHostDestroyed(content::RenderProcessHost *) Q_DECL_OVERRIDE;
private:
UserScriptControllerHost *m_controllerHost;
};
UserScriptControllerHost::RenderProcessObserverHelper::RenderProcessObserverHelper(UserScriptControllerHost *controller)
: m_controllerHost(controller)
{
}
void UserScriptControllerHost::RenderProcessObserverHelper::RenderProcessHostDestroyed(content::RenderProcessHost *renderer)
{
Q_ASSERT(m_controllerHost);
m_controllerHost->m_observedProcesses.remove(renderer);
}
void UserScriptControllerHost::addUserScript(const UserScript &script, WebContentsAdapter *adapter)
{
if (script.isNull())
return;
// Global scripts should be dispatched to all our render processes.
if (!adapter) {
if (!m_profileWideScripts.contains(script)) {
m_profileWideScripts.append(script);
Q_FOREACH (content::RenderProcessHost *renderer, m_observedProcesses)
renderer->Send(new UserScriptController_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->Send(new RenderViewObserverHelper_AddScript(contents->GetRoutingID(), script.data()));
}
}
bool UserScriptControllerHost::containsUserScript(const UserScript &script, WebContentsAdapter *adapter)
{
if (script.isNull())
return false;
// Global scripts should be dispatched to all our render processes.
if (!adapter)
return m_profileWideScripts.contains(script);
return m_perContentsScripts.value(adapter->webContents()).contains(script);
}
bool UserScriptControllerHost::removeUserScript(const UserScript &script, WebContentsAdapter *adapter)
{
if (script.isNull())
return false;
if (!adapter) {
QList<UserScript>::iterator it
= std::find(m_profileWideScripts.begin(), m_profileWideScripts.end(), script);
if (it == m_profileWideScripts.end())
return false;
Q_FOREACH (content::RenderProcessHost *renderer, m_observedProcesses)
renderer->Send(new UserScriptController_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->Send(new RenderViewObserverHelper_RemoveScript(contents->GetRoutingID(), (*it).data()));
list.erase(it);
}
return true;
}
void UserScriptControllerHost::clearAllScripts(WebContentsAdapter *adapter)
{
if (!adapter) {
m_profileWideScripts.clear();
Q_FOREACH (content::RenderProcessHost *renderer, m_observedProcesses)
renderer->Send(new UserScriptController_ClearScripts);
} else {
content::WebContents *contents = adapter->webContents();
m_perContentsScripts.remove(contents);
contents->Send(new RenderViewObserverHelper_ClearScripts(contents->GetRoutingID()));
}
}
const QList<UserScript> UserScriptControllerHost::registeredScripts(WebContentsAdapter *adapter) const
{
if (!adapter)
return m_profileWideScripts;
return m_perContentsScripts.value(adapter->webContents());
}
void UserScriptControllerHost::reserve(WebContentsAdapter *adapter, int count)
{
if (!adapter)
m_profileWideScripts.reserve(count);
else
m_perContentsScripts[adapter->webContents()].reserve(count);
}
void UserScriptControllerHost::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);
Q_FOREACH (const UserScript &script, m_profileWideScripts)
renderer->Send(new UserScriptController_AddScript(script.data()));
}
void UserScriptControllerHost::webContentsDestroyed(content::WebContents *contents)
{
m_perContentsScripts.remove(contents);
}
UserScriptControllerHost::UserScriptControllerHost()
{
}
UserScriptControllerHost::~UserScriptControllerHost()
{
Q_FOREACH (content::RenderProcessHost *renderer, m_observedProcesses)
renderer->RemoveObserver(m_renderProcessObserver.data());
}
} // namespace
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