[Qt] Enable QML handling of crashed/unresponsive QtWebProcess

https://bugs.webkit.org/show_bug.cgi?id=108474

Forward the processDidCrash, didRelaunchProcess, processDidBecomeUnresponsive
and processDidBecomeResponsive signals to QML's WebView.experimental.

Reviewed by Jocelyn Turcotte.

* UIProcess/API/qt/qquickwebview.cpp:
(QQuickWebViewPrivate::processDidCrash):
(QQuickWebViewPrivate::didRelaunchProcess):
(QQuickWebViewPrivate::processDidBecomeUnresponsive):
(QQuickWebViewPrivate::processDidBecomeResponsive):
* UIProcess/API/qt/qquickwebview_p.h:
* UIProcess/API/qt/qquickwebview_p_p.h:
(QQuickWebViewPrivate):

NOTE: This is the initial iteration of the patch attached to upstream
bug report 108474, i.e.:
https://bug-108474-attachments.webkit.org/attachment.cgi?id=185771
The actually committed version is incompatible with the status of
QtWebKit stable as the architecture changed too much.

Change-Id: I91d28dde2774fd1487a96ac36a14b522ffb7756c
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153580 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/Source/WebKit2/UIProcess/qt/QtWebPageLoadClient.cpp b/Source/WebKit2/UIProcess/qt/QtWebPageLoadClient.cpp
index b877ca8df..9f9021221 100644
--- a/Source/WebKit2/UIProcess/qt/QtWebPageLoadClient.cpp
+++ b/Source/WebKit2/UIProcess/qt/QtWebPageLoadClient.cpp
@@ -47,6 +47,8 @@ QtWebPageLoadClient::QtWebPageLoadClient(WKPageRef pageRef, QQuickWebView* webVi
     loadClient.didChangeProgress = didChangeProgress;
     loadClient.didFinishProgress = didFinishProgress;
     loadClient.didChangeBackForwardList = didChangeBackForwardList;
+    loadClient.processDidBecomeUnresponsive = processDidBecomeUnresponsive;
+    loadClient.processDidBecomeResponsive = processDidBecomeResponsive;
     WKPageSetPageLoaderClient(pageRef, &loadClient);
 }
 
@@ -88,6 +90,16 @@ void QtWebPageLoadClient::didChangeBackForwardList()
     m_webView->d_func()->backForwardListDidChange();
 }
 
+void QtWebPageLoadClient::processDidBecomeUnresponsive()
+{
+    m_webView->d_func()->processDidBecomeUnresponsive();
+}
+
+void QtWebPageLoadClient::processDidBecomeResponsive()
+{
+    m_webView->d_func()->processDidBecomeResponsive();
+}
+
 void QtWebPageLoadClient::dispatchLoadSucceeded()
 {
     m_webView->d_func()->loadDidSucceed();
@@ -213,4 +225,14 @@ void QtWebPageLoadClient::didChangeBackForwardList(WKPageRef, WKBackForwardListI
     toQtWebPageLoadClient(clientInfo)->didChangeBackForwardList();
 }
 
+void QtWebPageLoadClient::processDidBecomeUnresponsive(WKPageRef, const void* clientInfo)
+{
+    toQtWebPageLoadClient(clientInfo)->processDidBecomeUnresponsive();
+}
+
+void QtWebPageLoadClient::processDidBecomeResponsive(WKPageRef, const void* clientInfo)
+{
+    toQtWebPageLoadClient(clientInfo)->processDidBecomeResponsive();
+}
+
 } // namespace Webkit