bool ScriptController::processingUserGesture()
{
ExecState* exec = JSMainThreadExecState::currentState();
Frame* frame = exec ? toDynamicFrame(exec) : 0;
// No script is running, so it is user-initiated unless the gesture stack
// explicitly says it is not.
if (!frame)
return UserGestureIndicator::getUserGestureState() != DefinitelyNotProcessingUserGesture;
// FIXME: We check the plugin popup flag and javascript anchor navigation
// from the dynamic frame becuase they should only be initiated on the
// dynamic frame in which execution began if they do happen.
ScriptController* scriptController = frame->script();
ASSERT(scriptController);
if (scriptController->allowPopupsFromPlugin() || scriptController->isJavaScriptAnchorNavigation())
return true;
// If a DOM event is being processed, check that it was initiated by the user
// and that it is in the whitelist of event types allowed to generate pop-ups.
if (JSDOMWindowShell* shell = scriptController->existingWindowShell(currentWorld(exec)))
if (Event* event = shell->window()->currentEvent())
return event->fromUserGesture();
return UserGestureIndicator::processingUserGesture();
}
JSValue JSDOMWindow::showModalDialog(ExecState* exec)
{
String url = valueToStringWithUndefinedOrNullCheck(exec, exec->argument(0));
JSValue dialogArgs = exec->argument(1);
String featureArgs = valueToStringWithUndefinedOrNullCheck(exec, exec->argument(2));
Frame* frame = impl()->frame();
if (!frame)
return jsUndefined();
Frame* lexicalFrame = toLexicalFrame(exec);
if (!lexicalFrame)
return jsUndefined();
Frame* dynamicFrame = toDynamicFrame(exec);
if (!dynamicFrame)
return jsUndefined();
if (!DOMWindow::canShowModalDialogNow(frame) || !domWindowAllowPopUp(dynamicFrame))
return jsUndefined();
HashMap<String, String> features;
DOMWindow::parseModalDialogFeatures(featureArgs, features);
const bool trusted = false;
// The following features from Microsoft's documentation are not implemented:
// - default font settings
// - width, height, left, and top specified in units other than "px"
// - edge (sunken or raised, default is raised)
// - dialogHide: trusted && boolFeature(features, "dialoghide"), makes dialog hide when you print
// - help: boolFeature(features, "help", true), makes help icon appear in dialog (what does it do on Windows?)
// - unadorned: trusted && boolFeature(features, "unadorned");
FloatRect screenRect = screenAvailableRect(frame->view());
WindowFeatures wargs;
wargs.width = WindowFeatures::floatFeature(features, "dialogwidth", 100, screenRect.width(), 620); // default here came from frame size of dialog in MacIE
wargs.widthSet = true;
wargs.height = WindowFeatures::floatFeature(features, "dialogheight", 100, screenRect.height(), 450); // default here came from frame size of dialog in MacIE
wargs.heightSet = true;
wargs.x = WindowFeatures::floatFeature(features, "dialogleft", screenRect.x(), screenRect.right() - wargs.width, -1);
wargs.xSet = wargs.x > 0;
wargs.y = WindowFeatures::floatFeature(features, "dialogtop", screenRect.y(), screenRect.bottom() - wargs.height, -1);
wargs.ySet = wargs.y > 0;
if (WindowFeatures::boolFeature(features, "center", true)) {
if (!wargs.xSet) {
wargs.x = screenRect.x() + (screenRect.width() - wargs.width) / 2;
wargs.xSet = true;
}
if (!wargs.ySet) {
wargs.y = screenRect.y() + (screenRect.height() - wargs.height) / 2;
wargs.ySet = true;
}
}
wargs.dialog = true;
wargs.resizable = WindowFeatures::boolFeature(features, "resizable");
wargs.scrollbarsVisible = WindowFeatures::boolFeature(features, "scroll", true);
wargs.statusBarVisible = WindowFeatures::boolFeature(features, "status", !trusted);
wargs.menuBarVisible = false;
wargs.toolBarVisible = false;
wargs.locationBarVisible = false;
wargs.fullscreen = false;
Frame* dialogFrame = createWindow(exec, lexicalFrame, dynamicFrame, frame, url, "", wargs, dialogArgs);
if (!dialogFrame)
return jsUndefined();
JSDOMWindow* dialogWindow = toJSDOMWindow(dialogFrame, currentWorld(exec));
dialogFrame->page()->chrome()->runModal();
Identifier returnValue(exec, "returnValue");
if (dialogWindow->allowsAccessFromNoErrorMessage(exec)) {
PropertySlot slot;
// This is safe, we have already performed the origin security check and we are
// not interested in any of the DOM properties of the window.
if (dialogWindow->JSGlobalObject::getOwnPropertySlot(exec, returnValue, slot))
return slot.getValue(exec, returnValue);
}
return jsUndefined();
}
JSValue JSDOMWindow::open(ExecState* exec)
{
String urlString = valueToStringWithUndefinedOrNullCheck(exec, exec->argument(0));
AtomicString frameName = exec->argument(1).isUndefinedOrNull() ? "_blank" : ustringToAtomicString(exec->argument(1).toString(exec));
WindowFeatures windowFeatures(valueToStringWithUndefinedOrNullCheck(exec, exec->argument(2)));
Frame* frame = impl()->frame();
if (!frame)
return jsUndefined();
Frame* lexicalFrame = toLexicalFrame(exec);
if (!lexicalFrame)
return jsUndefined();
Frame* dynamicFrame = toDynamicFrame(exec);
if (!dynamicFrame)
return jsUndefined();
Page* page = frame->page();
// Because FrameTree::find() returns true for empty strings, we must check for empty framenames.
// Otherwise, illegitimate window.open() calls with no name will pass right through the popup blocker.
if (!domWindowAllowPopUp(dynamicFrame) && (frameName.isEmpty() || !frame->tree()->find(frameName)))
return jsUndefined();
// Get the target frame for the special cases of _top and _parent. In those
// cases, we can schedule a location change right now and return early.
bool topOrParent = false;
if (frameName == "_top") {
frame = frame->tree()->top();
topOrParent = true;
} else if (frameName == "_parent") {
if (Frame* parent = frame->tree()->parent())
frame = parent;
topOrParent = true;
}
if (topOrParent) {
String completedURL;
if (!urlString.isEmpty())
completedURL = completeURL(exec, urlString).string();
if (!shouldAllowNavigation(exec, frame))
return jsUndefined();
const JSDOMWindow* targetedWindow = toJSDOMWindow(frame, currentWorld(exec));
if (!completedURL.isEmpty() && (!protocolIsJavaScript(completedURL) || (targetedWindow && targetedWindow->allowsAccessFrom(exec)))) {
bool userGesture = processingUserGesture();
// For whatever reason, Firefox uses the dynamicGlobalObject to
// determine the outgoingReferrer. We replicate that behavior
// here.
String referrer = dynamicFrame->loader()->outgoingReferrer();
frame->redirectScheduler()->scheduleLocationChange(completedURL, referrer, !lexicalFrame->script()->anyPageIsProcessingUserGesture(), false, userGesture);
}
return toJS(exec, frame->domWindow());
}
// In the case of a named frame or a new window, we'll use the createWindow() helper
FloatRect windowRect(windowFeatures.xSet ? windowFeatures.x : 0, windowFeatures.ySet ? windowFeatures.y : 0,
windowFeatures.widthSet ? windowFeatures.width : 0, windowFeatures.heightSet ? windowFeatures.height : 0);
DOMWindow::adjustWindowRect(screenAvailableRect(page ? page->mainFrame()->view() : 0), windowRect, windowRect);
windowFeatures.x = windowRect.x();
windowFeatures.y = windowRect.y();
windowFeatures.height = windowRect.height();
windowFeatures.width = windowRect.width();
frame = createWindow(exec, lexicalFrame, dynamicFrame, frame, urlString, frameName, windowFeatures, JSValue());
if (!frame)
return jsUndefined();
return toJS(exec, frame->domWindow());
}
