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Avoid deleting a QWebPage inside its own signal emission. 

If Phantom.exit() is called inside the handler for loadFinished(), we
end up in a situation that QWebPage is deleting itself during a signal
emission. This used to be OK in QtWebKit 2.0 (Qt 4.7) but is not OK for
QtWebKit 2.2 (upcoming Qt 4.8).

http://code.google.com/p/phantomjs/issues/detail?id=251

Patch by Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org>.
1.4
Ariya Hidayat 2011-10-05 17:26:46 -07:00
parent 3ba6649706
commit fe20c0987d
2 changed files with 24 additions and 11 deletions
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9
src/webpage.cpp
View File

@ -108,10 +108,11 @@ WebPage::WebPage(QObject *parent, const Config *config)
setObjectName("WebPage");
m_webPage = new CustomPage(this);
m_mainFrame = m_webPage->mainFrame();
m_mainFrame->setHtml(BLANK_HTML);
connect(m_mainFrame, SIGNAL(javaScriptWindowObjectCleared()), SIGNAL(initialized()));
connect(m_webPage, SIGNAL(loadStarted()), SIGNAL(loadStarted()));
connect(m_webPage, SIGNAL(loadFinished(bool)), SLOT(finish(bool)));
connect(m_mainFrame, SIGNAL(javaScriptWindowObjectCleared()), SIGNAL(initialized()), Qt::QueuedConnection);
connect(m_webPage, SIGNAL(loadStarted()), SIGNAL(loadStarted()), Qt::QueuedConnection);
connect(m_webPage, SIGNAL(loadFinished(bool)), SLOT(finish(bool)), Qt::QueuedConnection);
// Start with transparent background.
QPalette palette = m_webPage->palette();
@ -135,8 +136,6 @@ WebPage::WebPage(QObject *parent, const Config *config)
m_webPage->settings()->setAttribute(QWebSettings::LocalStorageEnabled, true);
m_webPage->settings()->setLocalStoragePath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
m_mainFrame->setHtml(BLANK_HTML);
// Custom network access manager to allow traffic monitoring.
m_networkAccessManager = new NetworkAccessManager(this, config);
m_webPage->setNetworkAccessManager(m_networkAccessManager);

14
test/webpage-spec.js
View File

@ -236,11 +236,18 @@ describe("WebPage construction with options", function () {
};
var page = new WebPage(opts);
it("should have onLoadStarted that was specified",function () {
runs(function() {
expect(started).toEqual(false);
page.open("about:blank");
});
waits(0);
runs(function() {
expect(started).toEqual(true);
});
});
});
describe("specifying onLoadFinished", function() {
var finished = false,
@ -251,11 +258,18 @@ describe("WebPage construction with options", function () {
};
var page = new WebPage(opts);
it("should have onLoadFinished that was specified",function () {
runs(function() {
expect(finished).toEqual(false);
page.open("about:blank");
});
waits(0);
runs(function() {
expect(finished).toEqual(true);
});
});
});
describe("specifying scrollPosition", function () {
var opts = {