Is there anyway i can get the hyperlink click in webview to my c# with Hyperlink value in Metro?. I am using WebView..NavigateToString() to generate the content?.
You can call InvokeScript with some of your own Javascript to set up a listener for when the user navigates away from your page. This would look something like the following in C#:
var navigationListenerString = #"
(function() {
function leavingPage() {
window.external.notify("LEAVING PAGE");
}
window.onbeforeunload = leavingPage;
})()";
webView.InvokeScript("eval", new string[] { navigationListenerString });
Then you can use ScriptNotify to listen for your particular message to determine that the page is unloading and the user is leaving. Unfortunately you cannot detect where a user is going. Also, if the hyperlink opens in a new window and the webview does not unload, you cannot detect that either.
Since WebView in windows 8 doesn't support Navigating() events like the Silverlight WebBrowser control, thus it is not possible to get hyperlink or cancel navigation.
But since you're using NavigateToString() method, you can write some manual javascript code and achieve same with the help of WebView.ScriptNotify() event.
Related
I am writing a chrome extension for capturing the URL. This is the code for my js file.
chrome.tabs.getSelected(null, function(tab) {
myFunction(tab.url);
});
function myFunction(tablink) {
alert(tablink);
}
Now i can get the URL alert for the page by explicitly clicking on the browser action. I need it to popup the alert whenever i click on any tab in my browser.
Could you please let me know how to proceed with this?
PS: I am sure i have to use some kind of event listener.
chrome.tabs.getSelected is deprecated since Chrome 33. Use chrome.tabs.query instead if needed.
Base on your need to make popup the alert whenever you click on any tab in your browser. You can use chrome.tabs.onActivated.addListener.
The code I created is as below and it works with me. It popup the alert of current page's url whenever you click on any tab in your browser.
chrome.tabs.onActivated.addListener(function(activeInfo) {
//alert("popup");
chrome.tabs.get(activeInfo.tabId, function(tab){
alert(tab.url);
});
});
Also keep in mind to add "permissions": ["tabs"], in your manifest file since it requires access to the url. See here:https://developer.chrome.com/extensions/tabs
So I'd like to use ratchet to create a mobile web experience (and not a phone gap/hybrid app experience), and ratchet seems like a good fit for that. However, I don't want the functionality to be broken if a user views my prototype from a desktop browser (it can be ugly ). I've noticed that some of the javascript like the modals don't work in a desktop and only on the mobile device.
What's the work around to get something like the modal working on a desktop browser as well?
I noticed in the js file that I can just add the same event listener to the click event from the touched event like so:
window.addEventListener('click', function (event) {
var modal = getModal(event);
if (modal) {
if (modal && modal.classList.contains('modal')) {
modal.classList.toggle('active');
}
event.preventDefault(); // prevents rewriting url (apps can still use hash values in url)
}
});
Any suggestions on doing a side by side with say bootstrap? Is that feasible?
I have a hook on the beforeUnload event. If i try to click on a link, reload or close the tab or the navigator, the app ask for confirmation before leaving. That's the desired behavior.
But if click on the back button or the backspace outside an input, no confirmation.
At the beginning of the html :
window.onbeforeunload = function() {
if (confirmEnabled)
return "";
}
And i use the Gwt PlaceHistoryMapper.
What did i miss ? Where did i forgot to look ?
Thanks !
As long as you stay within your app, because it's a single-page app, it doesn't by definition unload, so there's no beforeunload event.
When using Places, the equivalent is the PlaceChangeRequestEvent dispatched by the PlaceController on the EventBus. This event is also dispatched in beforeunload BTW, and is the basis for the mayStop() handling in Activities.
Outside GWT, in the JS world, an equivalent would be hashchange and/or popstate, depending on your PlaceHistoryHandler.Historian implementation (the default one uses History.newItem(), so that would be hashchange).
I have a Grid object and added a [ (+) New Client ] button which I'd like to open a popup form to create the new client with a couple fields.
I've looked at the code examples in the website but haven't found how to do it (sorry if I've missed something).
This is the current page code:
function page_clients_listing($p){
$g = $p->add('Grid');
$g->addColumn('text','first_name');
$g->addColumn('text','last_name');
$g->addColumn('inline','telephone');
$g->addColumn('expander','comments');
$g->setSource('client');
$g->addButton('With Icon')->set('Add New Client')->setIcon('Plus');
}
Thanks in advance!
You can either create a popup or a dialog. Dialog is based on jQuery UI dialog implementation. Popups are likely to be blocked and are harder to control.
This is actually working for any object (you can apply to view, button, image, icon, etc), but I'll use button).
$b=$g->addButton('Add New Client')->setIcon('Plus');
$b->js('click')->univ()->frameURL($title,$url);
// OR
$b->js('click')->univ()->dialogURL($title,$url);
$url would most likely be returned by api->getDestinationURL(). The other page would be loaded and scripts on that page will be evaluated. Let's say you are on other page and now need to close the window.
$result = $this->addButton('Close')->js('click')->univ()->closeDialog();
closeDialog() returns a jQuery chain object pointing to a view which originally opened the frame. As a result if you do $result->hide(); then after dialog is closed, the original button ('add new client') will also be hidden.
Here is example to show some additional things you can do with frames, reloading and custom event handlers:
http://agiletoolkit.org/example/refresh1
As we are facing GWT performance issues in a mobile app I peeked into Google Wave code since it is developed with GWT.
I thought that all the buttons there are widgets but if you look into generated HTML with firebug you see no onclick attribute set on clickable divs. I wonder how they achieve it having an element that issues click or mousedown events and seemingly neither being a widget nor injected with onclick attribute.
Being able to create such components would surely take me one step further to optimizing performance.
Thanks.
ps: wasnt google going to open source client code too. Have not been able to find it.
You don't have to put an onclick attribute on the HTML to make it have an onclick handler. This is a very simple example:
<div id="mydiv">Regular old div</div>
Then in script:
document.getElementById('mydiv').onclick = function() {
alert('hello!');
}
They wouldn't set the onclick property directly, it would have been set in the GWT code or via another Javascript library.
The GWT documentation shows how to create handlers within a GWT Java app:
public void anonClickHandlerExample() {
Button b = new Button("Click Me");
b.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
// handle the click event
}
});
}
This will generate an HTML element and bind a click handler to it. However, in practice this has the same result as using document.getElementById('element').onclick() on an existing element in your page.
You can hook functions to the onclick event using JavaScript. Here's an example using jQuery:
$(document).ready(function(){
$("#div-id").click(function(){
/* Do something */
});
});
If you're interested in optimizing performance around this, you may need to investigate event delegation, depending on your situation.
A click event is generated for every DOM element within the Body. The event travels from the Body down to the element clicked (unless you are using Internet Explorer), hits the element clicked, and then bubbles back up. The event can be captured either through DOM element attributes, event handlers in the javascript, or attributes at any of the parent levels (the bubbling or capturing event triggers this).
I'd imagine they've just set it in a .js file.
Easily done with say jQuery with $(document).ready() for example.