@Konstantin-Tokarev , thanks!
QGraphicsView::scale() works great.

Anyone has any idea?

Could not find anything.

@koliva Could you give me URLs where this problem reproduces? Also, what QtWebKit version are you using? Form handling code had some fixes in 5.5.

It can also be caused by non-conforming behavior of web server.

Got it solved :-)

QWebFrame * webGUIframe = qobject_cast<QWebFrame *>(sender()); QWebView * webGUI = (QWebView*)(webGUIframe->parent())->parent(); webGUI->page()->mainFrame()->addToJavaScriptWindowObject("NativeBridge", this);

@Konstantin-Tokarev said in Multiple, identical instances of WebView, dynamically created:

Approach with multiple views is optimal when you want all those pages to be present on screen at the same time, or have indpendent "tabs" like in a browser with separate navigation histories and possibility to do background work like playing music

This is about what we do. The screen is divided into various sections that are used for various menus, sub-menus, lists ... and more. These need to be loaded and shown/hidden separately or at the same time. The GUI is completely based on webpages with html/css/php/js.

I have it working pretty smart now, though there are some limits like a key can not be sent to a webGUI that is hidden for instance, which would be great to preload a GUI section before showing.

@enmaniac QWebKit was removed in Qt 5.6. So QWebView is no longer available. Use QWebEngineView as a replacement. In Qt Designer, just add a QWidget to your form and promote it to QWebEngineView (base class: QWidget, header: QWebEngineView). Don't forget to add webenginewidgets to your project file.

Hi @JKSH,
I've resolved using QWebChannel.
Thanks again!

Setting the LocalStorageEnabled setting to true fixed this one!

Anyone?
Any Idea?

I updated my previous post since I solved part of the issue.

I found the solution. Not only can you call the HTML5 postMessage() API to pass messages back and form from/to the IFRAME to the parent document, but Qt's version of WebKit have lax security controls compared to Chrome and do allow you to do the following in the IFRAME's Javascript. The trick is the window.parent.[whatever] -- something that Chrome won't let you do with stuff accessed with file:// (local files).

$(document).ready(function(){ if (window.parent.cpp) { var cpp = window.parent.cpp; // do something with C++ here through the cpp object } });

Here's the solution. You have to do it in Javascript. Ensure jQuery is loaded in your web pages (even the IFRAME/FRAME ones) and then apply this code:

<script type="text/javascript"> $(document).ready(function(){ // Disable backspace key except in fields. $(document).keydown(function(e) { var elid = $(document.activeElement).is('INPUT, TEXTAREA') ; if (e.keyCode === 8 && !elid) { if(e.ctrlKey) { window.history.back(); } else { // disable backspace e.preventDefault(); return false; } } }); }); </script>

SOURCE: http://stackoverflow.com/a/17278620/105539

@SGaist said:

Where did you got these informations ?

Nowhere. I just wanted to make certain that this was not true. Your extra information about the Apple Store is very useful -- thanks.

@maximo the problem is that page`s url is not changing when song data changes. I solved the problem by checking song data using a timer and emiting my own signal.

It now works:

QString scriptSource = "if (typeof Wizard_OnNext == 'function') { wizard.nextButtonClicked.connect(Wizard_OnNext); }";
ui.webView->page()->mainFrame()->evaluateJavaScript(scriptSource);

@MrKozmon

I'm having the exact same problem on Android. When I drag a QQuickWidget that is hosting a QML-based WebView on Android, the widget moves but the WebView is left in the original position. Wondering if there has been any progress or a workaround for this issue.

I am using Qt 5.10.0, developing for an x86 Android platform.

Just an FYI, disabling network adapters (used by virtual machines) in Device Manager solved the sluggishness for me.

@Jan said:

the module name is WebKitWidgets? So

find_package (Qt5 REQUIRED COMPONENTS Widgets Core WebKitWidgets)

will work?

I'm not sure, sorry. I don't use CMake.

and then in the include:

#include <QtWebKitWidgets>

No need to include the whole module. Just include the class you want: #include <QWebView>

@ASSeeger Glad that you found the problem, Happy Coding ..

When you load libraries ...(html code): <script src="http://... instead <script src="https://...

Maybe the following link is about the same topic....

http://stackoverflow.com/questions/27738508/qt5-deployed-qtwebengine-project-not-playing-html5-videos

@SGaist said:

Strange… Let's check with @tekojo tomorrow

I discovered, your account is moderator type (I think), my account is a normal user, so I'm not such a function, but @tekojo had an idea to use "tags" instead of this function, see: https://bugreports.qt.io/browse/QTWEBSITE-631