Rename UserScriptController/Host to UserResourceController/Host

These classes can operate user stylesheets too.

Change-Id: Ia283af92e52a822b26003ff65e0e7dc391b0904d
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>

1 files changed, 238 insertions, 0 deletions

diff --git a/src/core/user_resource_controller_host.cpp b/src/core/user_resource_controller_host.cpp
new file mode 100644
index 000000000..b2de41cc0
--- /dev/null
+++ b/src/core/user_resource_controller_host.cpp
@@ -0,0 +1,238 @@
+/****************************************************************************
+**
+** 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 "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 UserResourceControllerHost::WebContentsObserverHelper : public content::WebContentsObserver {
+public:
+    WebContentsObserverHelper(UserResourceControllerHost *, content::WebContents *);
+
+    // WebContentsObserver overrides:
+    void RenderViewCreated(content::RenderViewHost *renderViewHost) override;
+    void RenderViewHostChanged(content::RenderViewHost *oldHost, content::RenderViewHost *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::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 UserResourceControllerHost::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 UserResourceControllerHost::WebContentsObserverHelper::WebContentsDestroyed()
+{
+    m_controllerHost->webContentsDestroyed(web_contents());
+    delete this;
+}
+
+class UserResourceControllerHost::RenderProcessObserverHelper : public content::RenderProcessHostObserver {
+public:
+    RenderProcessObserverHelper(UserResourceControllerHost *);
+    virtual void RenderProcessHostDestroyed(content::RenderProcessHost *) Q_DECL_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.
+    if (!adapter) {
+        if (!m_profileWideScripts.contains(script)) {
+            m_profileWideScripts.append(script);
+            Q_FOREACH (content::RenderProcessHost *renderer, 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->Send(new RenderViewObserverHelper_AddScript(contents->GetRoutingID(), script.data()));
+    }
+}
+
+bool UserResourceControllerHost::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 UserResourceControllerHost::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 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->Send(new RenderViewObserverHelper_RemoveScript(contents->GetRoutingID(), (*it).data()));
+        list.erase(it);
+    }
+    return true;
+}
+
+void UserResourceControllerHost::clearAllScripts(WebContentsAdapter *adapter)
+{
+    if (!adapter) {
+        m_profileWideScripts.clear();
+        Q_FOREACH (content::RenderProcessHost *renderer, m_observedProcesses)
+            renderer->Send(new UserResourceController_ClearScripts);
+    } else {
+        content::WebContents *contents = adapter->webContents();
+        m_perContentsScripts.remove(contents);
+        contents->Send(new RenderViewObserverHelper_ClearScripts(contents->GetRoutingID()));
+    }
+}
+
+const QList<UserScript> UserResourceControllerHost::registeredScripts(WebContentsAdapter *adapter) const
+{
+    if (!adapter)
+        return m_profileWideScripts;
+    return m_perContentsScripts.value(adapter->webContents());
+}
+
+void UserResourceControllerHost::reserve(WebContentsAdapter *adapter, int count)
+{
+    if (!adapter)
+        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);
+    Q_FOREACH (const UserScript &script, m_profileWideScripts)
+        renderer->Send(new UserResourceController_AddScript(script.data()));
+}
+
+void UserResourceControllerHost::webContentsDestroyed(content::WebContents *contents)
+{
+    m_perContentsScripts.remove(contents);
+}
+
+UserResourceControllerHost::UserResourceControllerHost()
+{
+}
+
+UserResourceControllerHost::~UserResourceControllerHost()
+{
+    Q_FOREACH (content::RenderProcessHost *renderer, m_observedProcesses)
+        renderer->RemoveObserver(m_renderProcessObserver.data());
+}
+
+} // namespace