I'm trying to display a GWT UiField HTML object with line breaks, but it doesn't seem to work.
I accept a string, sanitize it using the SimpleHtmlSanitizer, and then the line breaks display as text instead of html in the AlertWidget, which is a DialogBox.
#UiField
HTML description;
public AlertWidget(String htmlMessage) {
SafeHtml safeMessage = SimpleHtmlSanitizer.sanitizeHtml(htmlMessage);
setWidget(uiBinder.createAndBindUi(this));
this.description.setHTML(safeMessage);
}
On the page, the contents of the dialog box end up looking exactly like the input String:
The first error<br>the second error
I can see in my ide that the sanitized SafeHtml contains the safe value:
The first error<br>the second error
Take a look at the documentation for sanitizeHtml. At the top there's a list of supported tags. The break line tag is not supported.
I'd try some other mechanism for creating the SafeHTML:
http://www.gwtproject.org/javadoc/latest/com/google/gwt/safehtml/shared/SafeHtmlBuilder.html
Related
I am writing a program that extracts some certain information from local HTML files. That information is then shown on a Java JFrame and is exported to an excel file. (I am using JSoup 1.9.2 library for the HTML parsing purposes)
I am running into an issue where whenever I extract anything from an HTML file, JSoup is not taking HTML tags like break tags, line tags etc. into account and so, all the information is being extracted like a big chunk of data without any proper newlines or formatting.
To show you an example, if this is the data that I want to read :
Title Line 1 Line 2 Unordered
Listelement 1 element 2
The data is coming back as :
Title Line 1 Line 2 Unordered List element 1 element 2 (i.e. all the
HTML tags are ignored)
This is the piece of code that I am using for reading in :
private String getTitle(Document doc) { // doc is the local HTML file
Elements title = doc.select(".title");
for (Element id : title) {
return id.text();
}
return "No Title Available ";
}
Can anyone suggest me a way that can be used to preserve the meaning behind the HTML tags by using which I can both display the data on the JFrame and export it to excel with a more readable format?
Thanks.
Just to give everyone an update, I was able to find a solution (more like a workaround) to the formatting issue. What i am doing now is extracting the complete HTML using id.html() which I am storing in a String object. Then, i am using the String function replaceAll() with a regular expression to get rid of all the HTML tags without pushing everything into a single line. The replaceAll() function looks something like replaceAll("\\<[^>]*>",""). My whole processHTML() function looks something like :
private String processHTML(String initial) { //initial is the String with all the HTML tags
String modified = initial;
modified = modified.replaceAll("\\<[^>]*>",""); //regular expression used
modified = modified.trim(); //To get rid of any unwanted space before and after the needed data
//All the replaceAll() functions below are to get rid of any HTML entities that might be left in the data extarcted from the HTML
modified = modified.replaceAll(" ", " ");
modified = modified.replaceAll("<", "<");
modified = modified.replaceAll(">", ">");
modified = modified.replaceAll("&", "&");
modified = modified.replaceAll(""", "\"");
modified = modified.replaceAll("'", "\'");
modified = modified.replaceAll("¢", "¢");
modified = modified.replaceAll("©", "©");
modified = modified.replaceAll("®", "®");
return modified;
}
Thanks you all again for helping me with this
Cheers.
I am having Problems filling my TextView.
I have an HTML String that needs to be converted from HTML to String and the replace some characters.
Problem is: I can convert it directly with:
TextView.setText(Html.fromHtml(sampleText);
But I need to alter the converted sampleText before giving it to the TextView.
E.g.:
String sampleText = "<b>Some Text</b>"
newSampleText = Html.fromHtml(sampleText);
newSampleText.replace(char1, char2);
TextView.setText(newSampletext);
Does anyone know how to convert the HTML saved inside the String?
if you don't need formatting, use Html.fromHtml(sampleText).toString()
otherwise, you need to extract text from html with jsoup to find and change text like here
please try this one:
You need to use Html.fromHtml() to use HTML in your XML Strings. Simply referencing a String with HTML in your layout XML will not work.
DEMO
Try use This version of setText and use SPANNABLE buffer type
DEMO1
This is not a duplicate. The was a similar question, but none of those answers are able to deal with a real html file. One can save any html, even this one and try to run any of the solutions to that answer ... none of them solves the problem completely
The question is
I have a saved .htm file on my desktop. I need to get pure text from it . However I do need to keep the line breaks so that the text is not on just one or couple of lines.
I tried the following and all methods from here
FileInputStream in = new FileInputStream("C:\\...myfile.htm");
String htmlText = IOUtils.toString(in);
for (String line : htmlText.split("\n")) {
String stripped = Jsoup.parse(line).text();
System.out.println(stripped);
}
This does preserve only lines of html file. However, the text is still messed up, because such things as </br> , <p> got removed. How can I parse so that the text preserves all natural line breaks.
This is something I've noticed the difference between jsoup and say Selenium where Selenium keeps the line breaks and jsoup does not when extracting text. With that said, i think the best route is to get the innerHtml on the node you are trying to extract text, then do a replaceAll on the innerHtml to replace </br>and <p> with line breaks.
As a more complete solution, instead of reading the text file line by line, is it possible to traverse the html text more natively? Your best bet would be to traverse the tree using something like a recursive function and when you hit a TextNode, add that text to the stripped variable from your example. Then when you hit a <p> or </br> element, you can add a linefeed as need be.
Something like:
Document doc = Jsoup.parse(htmlText);
Then pass that in a recursive function for each child node:
String getText(Element parentElement) {
String working = "";
for (Node child : parentElement.childNodes()) {
if (child instanceof TextNode) {
working += child.text();
}
if (child instanceof Element) {
Element childElement = (Element)child;
// do more of these for p or other tags you want a new line for
if (childElement.tag().getName().equalsIgnoreCase("br")) {
working += "\n";
}
working += getText(childElement);
}
}
return working;
}
Then you can just call the function to strip the text.
strippedText = getText(doc);
Not the simplest solution, but one i can think of that should work if you want to extract all text from an HTML. I haven't run this code, just wrote it now so if i missed something, i apologize. But it should give you the general idea.
I have some amount of informations to be displayed in Dialog Box. It comes like Title, then under it text; Title, then under it text. Like wise, there are 4 titles and 4 descriptions to be displayed. It should come like this
Title One
description;description;description;description;description;description;description;description;description;description;description;description;description;description;description
Title Two
description;description;description;description;description;description;description;description;description;description;description;description;description;description;description
As you can see, there are bold texts, underlined texts, line breaks etc. I want to add this kind of a text to the alert box, so below is what I tried.
TextView msg = new TextView(this);
msg.setText("<html><u>Message</u></html>")
AlertDialog.Builder ab = new AlertDialog.Builder(this);
ab.setTitle("Title");
ab.setView(msg);
ab.setCancelable(false);
//rest of the code
However this trick didn't work. What happened is, all the HTML tags showed up as they are! And the text is not clear! Seems like it mixed with the background of the default colour of AlertBox, black. How can I solve this issue? Please help!
PS: Or am I using the wrong method? Wrong dialog box?
You will need to use Html.fromHtml() to use HTML tags in TextView as:
msg.setText(Html.fromHtml("<u>Message</u>"))
And you also see all HTML tags supported by TextView.
As it turns out, you don't actually need any extra TextViews to do this. Simply include the HTML in your alert's "setMessage()" call (which replaces the "setView()" call in your question) and pass it the html-formatted string. Be sure to only use <b>, <u>, and <i> in your formatting, though because those are the only tags it supports. If you're using a String resource for the text in your alert, call getResources().getText(R.id.yourHtmlString) rather than getResources().getString(R.id.yourHtmlString), though, or the tags will be completely stripped from the String.
If you want to add a link and make it clickable,
msg.setMovementMethod(LinkMovementMethod.getInstance());
msg.setClickable(true);
If you need to add more complex HTML, with CSS and META, you can add a WebView to the dialog, like this:
String webViewString = yourMeta + yourCss + yourHtml;
yourCustomWebView.loadData(webViewString, "text/html; charset=UTF-8",
null);
yourAlertDialog.setView(yourCustomWebView);
This way, you can display fully formatted HTML pages in your dialog.
Try this,
Font color,
String source = "<b><font color=#ff0000> Loading. Please wait..."
+ "</font></b>";
Font underline,
String source = <u>Message</u>
msg.setText(Html.fromHtml(source));
In case if you need it.
Better to use HtmlCompat.fromHtml((htmlString, 0) for compatibility with older versions.
This is my JSON String which is generated using Java:
[{\"userFirstNm\":\"Tamás\",\"userAsscId\":\"37732\",\"userLastNm\":\"Török\",\"userLanId\":\"a37732\"}]
Using an alert in JavaScript displays boxes inside string and breaks my eval function.
Please find details in attached screen shot.
alt text http://www.freeimagehosting.net/uploads/336da972f3.png
its invalid json
try this.
[{"userFirstNm":"Tamás","userAsscId":"37732","userLastNm":"Török","userLanId":"a37732"}]