I display an SVG file using HTML img tag through the .html file of an Angular 6 component. Let's call this SVG file a.svg.
This a.svg image contains parts that are linked to other SVG files, and let's just consider the first of them, named b.svg.
All the SVG files are static. They are place in a subfolder of assets in Angular 6 application folder.
When I open a.svg directly under my Internet browser, I can click on hyperlinked parts and navigate to b.svg, without any problem.
Under Angular 6, file a.svg is displayed correctly, but apparently, I can not click on interactive parts.
I investigate the issue without being able to find a real clue about the root cause of such behabior. Maybe, related to security issue. I wonder
is this a desired behavior of Angular 6?
is there a way to tell Angular 6, to allow user interaction on these images ?
Finally found the right way to do so.
First, read security guide for angular which provides many good hints, although far from being exhaustive.
To make my code run smoothly, this is what I changed
Firstly, in angular component .html file, I changed the HTML img tag into a div tag, on which I used the [innerHTML] binding to an internal property named svgFromFile
<div class='e2e-inner-html-bound' [innerHTML]='svgFromFile'></div>
Then, in angular component .ts file, I changed the implementation to use bypassSecurityTrustHtml() on the content of the target SVG file
this.fn = '/assets/urba/diagram/' + params['fn'] + '.svg'; // from route parameter to image asset to be served
this.http.get(this.fn, {
responseType: 'text'
}).subscribe(
data => {
console.log(data);
this.svgFromFile = this.sanitizer.bypassSecurityTrustHtml(data);
},
error => console.log('svgFromFile', error)
);
Doing so, embedded URLS in SVG file are now active and dereferenceable.
Related
as you see, the HTML content is not colorful, and it cannot autocomplete HTML tag
There are 2 ways to do that.
1) You could manually set the syntax to "Javascript React".
For that click on "Javascript" on the bottom right of your screen:
Then simply enter "react" and select it. After that you should have autocomplete for the html parts inside your render functions.
2) You can instruct VSCode to always open .js files as "javascriptreact". For that go to your settings and copy files.associations over to your local settings. Make sure it looks something like this and save:
"files.associations": {
"*.js": "javascriptreact"
}
Note on that one: This will always set the syntax to "javascriptreact" when you open .js files and might not always be what you want. A better solution would be to generally name react files as myfile.jsx. This way vscode will automatically set the syntax to "javascriptreact".
Hope this helps.
Save the file as .jsx ie (App.jsx) instead of .js
This is because you are saving the file as .js ie App.js.JavaScript files cannot understand HTML tags.
Another alternative is you can save in (.js) but your web pack should be configured in such a way that it should transpile it into .jsx.
For doing refer this - https://github.com/facebook/create-react-app
React understand javascript xml only.
I am working with angularjs in html 5 mode. Which appears to take control of all href's on the page. But what if I want to have a link to something within the same domain of the app but not actually in the app. An example would be a pdf.
If i do <a href="/pdfurl"> angular will just try to use the html5mode and use the route provider to determine which view should be loaded. But I actually want the browser to go to that page the normal way.
Is the only way to do this is to make a rule with the route provider and have that redirect to the correct page with window.location?
in HTML5 mode, there are three situations in which the A tag is not rewritten:
from the angular docs
Links that contain a target attribute. Example: link
Absolute links that point to a different domain Example: link
Links starting with '/' that lead to a different base path when base is defined Example: link
so your case would be 1. add target="_self"
As of Angular v1.3.0 there is a new rewriteLinks configuration option for the location provider. This switches "hijacking" all the links on the page off:
module.config(function ($locationProvider) {
$locationProvider.html5Mode({
enabled: true,
rewriteLinks: false
});
});
While disablig this behavior for all links may not be your intention, I'm posting this for others who, like me, want to use $location in html5 mode only to change the URL without affecting all links.
If you don't want Angular to take control of the href. Place a target attribute on the link.
So PDF will by pass the html5mode and the routeProvider and the browser will just go to that url.
Other solution. All links will work normally (reload page). Links marked by ng-href="/path" will play on pushState. Small JS hack help with it.
.config(["$locationProvider", function($locationProvider) {
// hack for html5Mode customization
$('a').each(function(){
$a = $(this);
if ($a.is('[target]') || $a.is('[ng-href]')){
} else {
$a.attr('target', '_self');
}
});
$locationProvider.html5Mode(true);
}])
So I have a website set up and I wish to dynamically load other .html files into a div. Each .html file contains some content but 1 .html file contains its own angularjs directives.
I was using ng-bind-html along with $scope.content = $sce.trustAsHtml(data); but I have discovered that this prints out the html raw (does not process any angular directives).
I've tried to use the various solutions on stack overflow but none have worked for me.
Website: http://algorithmictrading.azurewebsites.net/
App.js: http://algorithmictrading.azurewebsites.net/js/app.js
Example of .html pages being loaded:
http://algorithmictrading.azurewebsites.net/includes/home.html
http://algorithmictrading.azurewebsites.net/includes/about_us.html
.html page that contains angular directives:
http://algorithmictrading.azurewebsites.net/includes/download.html
As you can see, if you navigate to the website and click on the 'download' tab, the content is loaded but the angular in the drop down menu is not handled. The test button I added should also produce an alert box.
Right now, the code is based off this thread:
call function inside $sce.trustAsHtml() string in Angular js
Thanks!
I found that angular was stripping out the directives from html strings if I didn't pass them through the $sce.trustAsHtml method before passing them into the template:
$sce.trustAsHtml('<a href="/some-link" directive-example>link to add</a>');
This combined with a watch/compile on the element's content you're inserting html into seems to do the trick:
scope.$watch(getStringValue, function() {
$compile(element, null, -9999)(scope);
});
Take a look at this example: http://plnkr.co/edit/VyZmQVnRqfIkdrYgBA1R?p=preview.
Had the same problem this week and the best way I found to make it works was creating a custom directive called "BindComponent".
Change the ng-bind-html directive to a custom directive, and inside the link method you put this:
element.html(markupModel);
$compile(element.contents())(scope);
The markupModel can be a string with html code or you can use $templateCache($templateCache docs) to get the code from a .html file.
I'm trying to render a .html webpage using #Renderpage() method in Webmatrix but the .html extension is not supported by the method. I guess the method only supports cshtml extensions. Is there a way I can render html pages dynamically on my site (Webmatrix). I dont want to use an iframe because I'll definitely have issues with my jquery files.
I attempted something i feel is safe yet feels unsafe. I resolved to read the html file and inject it to the DOM manually using:
Array html = null;
var mypage = Server.MapPath(page);
if(File.Exists(mypage)){
html = File.ReadAllLines(mypage);
}
After reading the file.....i injected it to the DOM
<div class="s_content s fontfix left s_content2 downdown">
#foreach (var data in html) {
<text>#Html.Raw(data)</text>
}
</div>
All this runs on compilation time before the page is created for rendering.....I attempted some security measures by attempting to inject server-side C# code in the HTML file but was useless. Makes me feel safe atleast. Is this risky? What is the possible threat to this alternative. i wish i can still have an alternative proper solution from the house. Thanks though.
Assuming #Renderpage() doesn't support HTML files, why don't you try Jquery.load or Ajax. There are lots of tutorials based on dynamic loading of html content.
I do something similar but I don't use #Renderpage or an html file. Instead I am using the "onclick" event and a javascript function which opens a cshtml file. You just put this and the java script function in your main cshtml file in the hmtl section. It will open a file in the current directory called my_window.cshtml when clicked
<a onclick=openWin("my_window",700,850);>Open when clicked</a>
<script type="text/javascript">
function openWin(url, width, height)
{
myWindow=window.open(url,'_blank','width='+width+',height='+height);
myWindow.focus();
}
Hope this helps!
I want to ask how to embed DWG file in HTML Page.
I have tried using tag with Volo Viewer but this solution run only in IE not in Firefox and Chrome.
Dwgview-x can do that, but it will need to be installed as a plug-in on client computers so that anyone can view the dwg file that you embed online.
There may be third party ActiveX controls that you could use, but I think ultimately you will find that it's not practical for drawing files of even average complexity. I recommend to create DWF (if you need vector format) or PNG files on demand (using e.g. the free DWG TrueView from http://usa.autodesk.com/design-review/ ) and embed those instead.
I use DWG Browser. Its a stand alone program that is used for reporting and categorizing drawings with previews. It saves exports in html too.
They have a free demo download available.
http://www.graytechnical.com/software/dwg-browser/
You'll find what I think is the latest information on Autodesk's labs site here: http://labs.blogs.com/its_alive_in_the_lab/2014/01/share-your-autodesk-360-designs-on-company-web-sites.html
It looks like a DWG can be embeded there is an example on this page, but clearly DWF is the way to go.
You can embed DWG file's content in an HTML page by rendering the file's pages as HTML pages or images. If you find it an attractive solution then you can do it using GroupDocs.Viewer API that allows you to render the document pages as HTML pages, images, or a PDF document as a whole. You can then include the rendered HTML/image pages or whole PDF document in your HTML page.
Using C#
ViewerConfig config = new ViewerConfig();
config.StoragePath = "D:\\storage\\";
// Create HTML handler (or ViewerImageHandler for rendering document as image)
ViewerHtmlHandler htmlHandler = new ViewerHtmlHandler(config);
// Guid implies that unique document name
string guid = "sample.dwg";
// Get document pages in html form
List<PageHtml> pages = htmlHandler.GetPages(guid);
// Or Get document pages in image form using image handler
//List<PageImage> pages = imageHandler.GetPages(guid);
foreach (PageHtml page in pages)
{
// Get HTML content of each page using page.HtmlContent
}
Using Java
// Setup GroupDocs.Viewer config
ViewerConfig config = new ViewerConfig();
// Set storage path
config.setStoragePath("D:\\storage\\");
// Create HTML handler (or ViewerImageHandler for rendering document as image)
ViewerHtmlHandler htmlHandler = new ViewerHtmlHandler(config);
String guid = "Sample.dwg"
// Get document pages in HTML form
List<PageHtml> pages = htmlHandler.getPages(guid);
for (PageHtml page : pages) {
// Get HTML content of each page using page.getHtmlContent
}
Disclosure: I work as a Developer Evangelist at GroupDocs.