Can I preload content in a Webbrowser control? - visual-c++

I have a VC++ MFC dialog application with a web browser ActiveX control. I have "Next" and "Prev" buttons using which I let the user navigate through a list of pre-defined URLs, whose content are shown in the web browser control. Since I know the list of URLs at the start itself, I would like to pre-load the content in some way while the user is looking at one page, so that when they click on "Next", the content has already been fetched and can be shown to the user instead of waiting for the page to load. I did not find any documentation on how to do that so far. Does anyone have any ideas on how to achieve this? I was thinking of having a second invisible web browser control where I pre-load the next URL, but it would be tricky to handle the user clicking Next when the next URL is still loading in the other browser.

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Chrome Extension overwrite existing webpage

I will try to make this as short as possible. I am making a Chrome extension and I wanted to have an integrated settings tab so users can customize their experience. Now, I want this settings tab to be somewhat of an "extension" to an existing settings tab in a website. Let me explain.
The website I am talking about is Roblox.com, a popular gaming platform. When logged in, you have the ability to visit your settings, which look something like this:
Now, in order to navigate the different setting "tabs," you simply click on a button and it takes you to another change. The URL corresponding to each page is https://www.roblox.com/my/account#!/TAB_NAME, with TAB_NAME being the name of the tab. What I want to do is make my own "tab" where once the player clicks, it will bring them to a settings tab where they can tweak the extension's settings. This would look something like this:
I am fully aware on how to this (inject a button into the list and customize said button), but what I don't know what to do is make it so that once the button is clicked, it will not redirect you to another website, but will simply "switch tabs" like it would with any other setting. There is an extension that already does that called "Roblox+", where it adds a button to the list, and once clicked, it takes you to a similar-looking page with the URL https://www.roblox.com/my/account?tab=rplus#!/info. From my understanding, since the tab name isn't a header, the URL does not change, which allows for a custom webpage. Now, if you were to paste that URL in a browser without the extension, then it would simply redirect you to the "Account Info" tab (although the URL remains). Here is how the Roblox+ extension settings page looks like:
Now, from what I can assume, what happens is that right after the normal account information page is loaded, it removes all the HTML elements that are related to the account information tab and re-creates the entire page using custom HTML elements. That is something similar to what I want to do. Regardless of this, I do have one question. Is it possible to somehow "overwrite" a certain domain so that, let's say, the URL https://www.roblox.com/my/account#!/my_plugin_settings led to my custom page (even if that means that the page is made from an HTML file) instead of where it was supposed to lead? If that isn't possible, would it be better to create a custom settings page outside of the Roblox website or somehow inject my own into the current settings?
This is the question that I have. Hopefully I explained it well. If someone could assist me on this, then that would be amazing. Thank you for your time and help, I truly appreciate it.

is it possible to launch an extension from a website?

Had a qq: is it possible to launch an extension (that is already installed) when someone clicks on a link ?
For example, let's say on my website I have a button that says "click here to launch the extension". After they install my chrome extension, when a user clicks on this button, could the extension launch? (e.g.- the popup to open).
The goal is this: I have an extension that acts like a search bar. I also have search on the website, but I wanted it to search using the extension instead of the website if a user chooses to.
Thanks for any info,
Y
If you are asking for a way to programmatically open the extension's popup, then you will be disappointed (as it cannot be done).
If it serves your purpose, you could do something like this:
Have your extension inject a content script into your webpage.
Have the content script bind to a button's click event.
When the button is clicked: Pass some parameters to the extension's background page, let the extension perform the search and send the results back to the webpage.

Prevent direct access to some page in JSF

I want to restrict direct access to certain page in my application. Those pages can only be accessible if the user is redirected to those pages by the application.
All the redirections are done via ExternalContext#redirect(url) method.
User can use back and forward button, also can refresh the page by pressing F5 or via browser's refresh button. What I want is user cannot save, or bookmark URLs of some page, also cannot copy those redistricted URL and paste and go via address bar of the browser.
Followings are the cases:
Say, I have Page-A and Page-B.
Redirection is done to Page-B from Page-A.
User can go back to Page-A and can come again to Page-B by using browser's back and forward button.
User can refresh Page-B and he/she will stay in Page-B.
User CANNOT copy the URL of Page-B and access it later time (in new tab or by bookmarking).
Is it feasible? Any pointer would be very helpful to me.
I don't think you can do all that from JSF.
Your obvious alternative is to use Javascript.
I never herd a concept of disabling Bookmark option in Browser using Javascript. However you can always disable the address field if you open the page in new Window.
You can solve it with
JSF Navigation Handler - set a session attribute from some previous page and expire the value after some time with a timer. From the Handler impl check the value of the attribute and restrict access e.g. redirect to some other page in case the value is not present.
You can achieve similar behaviour with web frameworks. Enforcing controlled navigation is a basic feature in most WEB FXs e.g. JBoss Seam conversations or Spring Web Flow controlled navigation implementations.

click of a submit button on any website using Google extension

On the click of a submit button on any website eg. Amazon, I want a .html to be triggered using google extension. please let me know if it is possible.
You can indeed execute scripts on (almost) any page using content scripts that can manipulate the DOM, allowing you to add an onsubmit event listener to a form (more reliable than onclick on a button as it is fired however the form is submitted - e.g. hitting ENTER).
What exactly do you mean you "want a .html to be triggered"? Triggered in what way? If you want to open another tab when this happens, you can do this using message passing to tell your background page to do this for you using the chrome.tab.create API method.

Focus is not going inside EventHandler

I had created a simple web part with one label, and one button. I wnat that when i click the button the label content will change.
But when i debugg i found that the focus is not going inside the Button Click Event function.
When i click the button the debugger will again start with page load.
Is there any Autofocus for Button.
Please help me to resolve my problem.
Thanks :)
I think that you're confused about what happens on the client (within the browser) and what happens on the server (in your ASP.NET code).
Most events on server-side controls, like the ASP.NET button, are handled server-side, through a mechanism called postback. The generated code on the browser causes a form submit to the Web server, where the page and its controls are re-created. The form data is parsed and the button control generates (in your case) a Click event for your server-side code. This code regenerates a new HTML page which will replace the old one.
Fortunately for you in this case, the ASP.NET button has a property "OnClientClick" where you can insert JavaScript code to do whatever you want (like change the label text) directly in the browser.
See MSDN for the docs on the property and an example of using both Click and OnClientClick.
Note that this is not related to SharePoint, this is a pure ASP.NET issue.

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