I am trying to add a link to my RMarkdown document (using a flexdashboard), and am aware of the [Website Name](URL) method, however in my particular case, the webpage can only be opened in Internet Explorer, and so I want to override my default browser, Chrome.
I have been playing in the console, and have had success with the browseURL function, which allows me to specify a file path for the browser to use: browseURL("http://URL", browser = "c:/Program Files/Internet Explorer/iexplore.exe")
My question is, how do I use this function within RMarkdown. I'd like a hyperlink to show up in my rmarkdown HTML page, where the link says "Website Name" and when you click the link, it executes the browseURL function and automatically opens Internet Explorer.
I haven't been able to figure out how to get a link to show up in my rmarkdown output that executes browseURL. Thanks for your help!
Related
If from the RStudio menu, I select File > New File > R Markdown ...
and then select Presentation, HTML (Slidy).
Leaving the sample code and pressing Knit HTML, opens the presentation in presentation mode in an RStudio browser (after saving). However, if I then select Open in Browser the presentation shows as one page and pressing "a" to change to slide show mode does not work (tested with Chrome and IE)
This same behaviour does not occur if I choose HTML (ioslides), i.e. ioslides works as expected.
Is anyone else able to replicate this problem? Any ideas? Apparently javascript is enabled...
After uploading a PDF to the Media Archive, I am trying to link to it from a page on a site.
While editing content, I use the hyperlink tool then select the PDF I want to link to via the URL input box.
After saving and publishing the content, clicking the link downloads the PDF and I don't see any apparent way to make this view-able in the browser by using the current Media ID Composite provides. When rendered, we get this:
pdf
Is there a way that I can reference a PDF without using the Media ID and simply use the file name instead?
Here is the Request/Response header info:
After reading what Pauli Østerø said, I understand the problem but am still not able to think of a solution.
I can get the PDF to view in the browser by adding ?download=false to the href URL via Developer Tools. But when I try to add ?download=false to the href through Composite, it doesn't take affect and I get the console output: "Resource interpreted as Document but transferred with MIME type application/pdf: "http://c1.wittenauers.com/media/4afb7bc8-f703-469d-a9b2-a524d8f93dcb/ryc7iw/CompositeDocumentation.PDF"."
Here is the network trace that was asked for by Pauli. In the image, I included the bit where I add ?download=false to the URL, in source view, just in case there could be another way to add it.
Edit: URL and headers for the page.
Here is the link to the page that contains the link:
http://c1.wittenauers.com/cafe/test
Here is the headers for the page containing the link:
From what you're experiencing, it seems to me that Composite have gotten the MIME type of your uploaded file wrong, and is therefor not correctly telling the browser that this file is a pdf, and the browser doesn't know what to do with it.
Try deleting the file and uploading it again.
Try add ?download=false and the end of the href to the file. You prob. need to go into source mode of the content editor.
This is the exact line in the Source Code which is responsible for this behavior, and the logic is as follows
If there is no Querystring named download, the attachment is determined by the Mime Type. Only png, gif and jpeg will be shown inline, the rest will be shown as attachment.
If there is a Querystring named download with a value of false, it will override the Mime Type check and always force the Content-Disposition to be inline.
I made a quick test here to show that the behaviour is a expected. At least in my Chrome browser in Windows 8
Force download: https://www.dokument24.dk/media/9fdd29da-dde8-41f7-ba4c-1117059fdf06/z8srMQ/test/Prisblad%202015%20inkl%20moms.pdf
Show in browser: https://www.dokument24.dk/media/9fdd29da-dde8-41f7-ba4c-1117059fdf06/z8srMQ/test/Prisblad%202015%20inkl%20moms.pdf?download=false
Expanding on Pauli's answer, you can add the following snippet to your page template to automatically add the '?download=false' to all pdf links.
$("a").each(function () {
if (this.href.includes(".pdf")) {
this.href = this.href + "?download=false";
}
})
I have a shiny app that renders a plot using ggplot2. In fact, the browser's download image button works too (right click). And, when I download the image it does and displays when I open the file.
Only problem is that the file name to which it downloads is simply called 'untitled'. I want to make the file download to a name. But, I don't want to use the 'download image/plot' button. All examples I see show this option. Want to use built-in browser capability.
Any ideas?
If you don't want to use a button, you could use ggsave inside the function that creates the plot: http://docs.ggplot2.org/0.9.2.1/ggsave.html
The requirement is sent a Word document from browser, and automatically open it on MS Word so that then can view and edit the Word document.
The only solution I can found require the end user to click a dialogue Window in order to open a Word document in Office when the document is download from browser.
Is this the only way, that the user has to click a dialogue Window before Office can open the downloaded Word document?
It kinds of make sense for security reason to not let browser automatically execute an local application (Word.exe) on the local machine, but I still want to confirm that.
If the answer is yes, then I would like to know how to do that?
Edit: I just found out that you have to use inline instead of Attachement, otherwise it will always ask for the option event the browsers are setup properly.
Response.AddHeader("Content-Disposition", "inline;filename=clientquotes.docx");
After made that change, browser will auto open the Word document without asking for action.
If I understand correctly, you want to change the behaviour of your browser to automatically open downloaded files. As far I'm aware its pretty painless process when it comes to Firefox and Google Chrome, however on IE it's not as simple.
Firefox
Changing download actions
This will not affect media embedded in a web page - only links to the files themselves.
Click the menu button Menu and choose Options
Select the Applications panel.
The Applications panel will display. Select the type of file for which you want to change the default action.
The Action column will give you a drop-down menu, with options on action to take, whenever you click that type of file.
Alwaysask: will prompt you to select what action you want Firefox to take when you click on that type of file. This can be useful if Firefox is automatically saving a file type or is always opening it with a certain program and you want to be asked what to do.
Save File: will always save the file to your computer using the Downloads window, whenever you click that type of file.
Open the file with an application or plugin of your choosing.
Click Ok to close the options window after making changes
Adding download actions
On the web, find a link to a file matching the type you want to add.
Click on the file link to download it.
Select how you want Firefox to handle the file:
Open with: Saves the file to a temporary folder and opens it in the default application for that file type. To select an application, click Browse....
Do not choose Firefox to always open a certain file type, as doing so can cause
a problem where Firefox repeatedly opens empty tabs or windows after you click on a link.
Save file: Saves the file to the download folder (specified in the Firefox General panel).
In the Opening file window, check mark Do this automatically for files like this from now on.
Click Ok.
Is Do this automatically for files like this from now on disabled?
This can happen if the website's server incorrectly specifies the
Internet Media type of the file. It also can happen if the server assigns
"Content-Disposition: attachment" to the file.
Reference
Google Chrome
If you want certain types of file always to open after they've finished downloading, click the arrow next to the file button in the downloads bar and select Always open files of this type.
Reference
IE
From what I can gather for IE you will have to change the registry keys. You can refer to this link for further information.
I hope this answers your question.
I've spent a couple of days searching the bowels of the internet to find out the answer to my question, so since I can't find the answer I'm throwing it out to the masses...
Within my Qt application I'm able to open a PDF using the OS default viewer thru the following command:
QDesktopServices::openUrl(QUrl("file:////C:help.pdf", QUrl::TolerantMode));
This works fine because all I'm wanting to do is display a help file to a user, but when I try to add a "#page=20" parameter to my URL, the document still only opens to the first page, not page 20. If I cut and paste the command into a browser it jumps correctly.
So -- my questions are:
Would poppler or another viewing tool allow me to jump to a page?
Is there another way with Qt to jump to a page? Or maybe another command to open the file instead of with QDesktopServices?
edit: I tried with QProcess and that doesn't jump to the page either -- not that I expected it to...
Use QProcess with one of the answers from Adobe Reader Command Line Reference :
<path to Adobe Reader> /A "page=100" "<Path To PDF file>"
Yes. evince, for example, takes option --page-index which you can set page number
No. QDesktopServices::openUrl() ends up calling one of helper commands, such as xdg-open or kfmclient, without any arguments.
Of cause, you can always use libpoppler in your app to open your PDFs. Poppler::Document::page() is your friend.
Another solution I was able to work out was to convert my PDF to HTML, create a QWebView, and display the HTML there. I then added an ID attribute to the HTML doc, and when I tacked that ID to my URL it loaded into the widget at the location of the attribute...
scott