Implement QWebEnginePage::toHtml and toPlainText

Those methods are now made asynchronous and need to be given a
callback to handle the result.

Update the code in the browser and fancybrowser examples using
std::bind when using C++11 or tr1::bind with C++03 (which should be
available with compilers on platforms that we support).

Add a (currently failing) earlyToHtml test to make sure that an empty
page doesn't crash because of a possibly incomplete attachment of
the QtRenderViewObserver.

Change-Id: I3ab7cb6f25b91b584dd80df5e4e9ad1e3214348e
Reviewed-by: Pierre Rossi <pierre.rossi@gmail.com>

2 files changed, 21 insertions, 0 deletions

diff --git a/src/core/renderer/qt_render_view_observer.cpp b/src/core/renderer/qt_render_view_observer.cpp
index b3b4c38c4..0f5ca6556 100644
--- a/src/core/renderer/qt_render_view_observer.cpp
+++ b/src/core/renderer/qt_render_view_observer.cpp
@@ -54,10 +54,28 @@ QtRenderViewObserver::QtRenderViewObserver(content::RenderView* render_view)
 {
 }
 
+void QtRenderViewObserver::onFetchDocumentMarkup(quint64 requestId)
+{
+    Send(new QtRenderViewObserverHost_DidFetchDocumentMarkup(
+        routing_id(),
+        render_view()->GetWebView()->mainFrame()->document().createMarkup(),
+        requestId));
+}
+
+void QtRenderViewObserver::onFetchDocumentInnerText(quint64 requestId)
+{
+    Send(new QtRenderViewObserverHost_DidFetchDocumentInnerText(
+        routing_id(),
+        render_view()->GetWebView()->mainFrame()->document().documentElement().innerText(),
+        requestId));
+}
+
 bool QtRenderViewObserver::OnMessageReceived(const IPC::Message& message)
 {
     bool handled = true;
     IPC_BEGIN_MESSAGE_MAP(QtRenderViewObserver, message)
+        IPC_MESSAGE_HANDLER(QtRenderViewObserver_FetchDocumentMarkup, onFetchDocumentMarkup)
+        IPC_MESSAGE_HANDLER(QtRenderViewObserver_FetchDocumentInnerText, onFetchDocumentInnerText)
         IPC_MESSAGE_UNHANDLED(handled = false)
     IPC_END_MESSAGE_MAP()
     return handled;
diff --git a/src/core/renderer/qt_render_view_observer.h b/src/core/renderer/qt_render_view_observer.h
index 8c5713c4a..c37dce16d 100644
--- a/src/core/renderer/qt_render_view_observer.h
+++ b/src/core/renderer/qt_render_view_observer.h
@@ -48,6 +48,9 @@ public:
     QtRenderViewObserver(content::RenderView* render_view);
 
 private:
+    void onFetchDocumentMarkup(quint64 requestId);
+    void onFetchDocumentInnerText(quint64 requestId);
+
     virtual bool OnMessageReceived(const IPC::Message& message) Q_DECL_OVERRIDE;
 
     DISALLOW_COPY_AND_ASSIGN(QtRenderViewObserver);