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patch: implement white-space: pre-wrap for vsource
by corvid＠lavabit.com March 31, 2010

March 31, 2010

Just a thought I had. The web is filled with horrible generated html with lines a thousand characters long. With this (and parse_embedded_css), those lines become more tolerable. I would commit it in two pieces, of course.

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HTML 2.0 DTDs
by corvid＠lavabit.com March 31, 2010

March 31, 2010

I just mistyped an address on our site, got a 404, and noticed that I get an HTML bug msg about the DTD. The 404 page has: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> Html_parse_doctype has: static const char HTML20 [] = "-//IETF//DTD HTML//EN"; RFC 1866 has: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0 Level 2//EN"> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0 Level 1//EN"> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0 Strict//EN"> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0 Strict Level 1//EN"> So I would rather strncmp for "-//IETF//DTD HTML 2.0".

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Re: experiment feedback
by spell_gooder_now＠spellingbeewinnars.org March 31, 2010

March 31, 2010

Hi Alan I had actually read quite a bit about seed and I had downloaded some sample code and played with it in the past. However your idea never occurred to me. I think it would be a fantastic idea to make the JavaScript within the layout engine talk to the "enclosing" GUI that is also written in JavaScript. I read through your blog, thanks for the link and your writings. I have been going around in circles for an amount of time I am too ashamed to confess. I have decided to write the back end and post pone the front end till I sort this out in my head. I would however still like to be a part of any project you might start related to this. I hope this won't come across the wrong way, I really like Dillo but I am wondering what is it's main niche it is planning to fill? Certainly it is fast and certainly it is small but is the target audience just people looking for a general purpose browser? Would it's speed and small size not make it ideal for being embedded in another application? Would this not be something that Gecko and Webkit cannot easily offer? I only have limited resources and time but I bet a corporate sponsor might fund this. Alan, I hope your studying goes well, sounds like someone else is sleep deprived too-Patrick

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Problem using "Textblock" Class.
by rmarathe＠i-rode.com March 26, 2010

March 26, 2010

Hi, I am trying to implement the support for using the tab or other keyboard keys to set focus on web page links. As part of this, I started out with adding a new Class and would like to use some sort of iterator in this class. I would also like to use the 'Textblock' object to retrieve the style->x_link for a word. However, when I try to initialize the Textblock object in my new class, I get a linker error. The details are as under: The basic skeletal code for new class is: ======================================== findlinks.cc namespace dw { namespace core { FindLinks::FindLinks () { widget = NULL; iterator = NULL; } FindLinks::~FindLinks () { if (iterator) delete iterator; } void FindLinks::getlink (void) { MSG("\n Hi !! I came to findlinks"); Textblock *textblock = new Textblock (false); } I have included "dw/textblock.hh" in the above file and also included core.hh. Compilation goes through but I end up with a linker error as under: ===================================================================== ../dw/libDw-core.a(findlinks.o): In function `dw::core::FindLinks::getlink()': /home/rmarathe/dillo-2.2/dw/findlinks.cc:25: undefined reference to `dw::Textblock::Textblock(bool)' collect2: ld returned 1 exit status I believe that I still need to use "iterator" and the Textblock" classes to implement this feature. Am I using the Textblock in a right way or am I missing something in the above code ? Please do let me know, regards, Rajesh Marathe.

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dillo crash when using a <select> field during page load
by rogutes＠googlemail.com March 21, 2010

March 21, 2010

G'day, When I click on a <select><option>option 1</option>...</select> field and move the mouse through the items while a page is still loading, dillo segfaults. I can quite reliably reproduce this with the country selection field at the top center of lenovo.com. I wasn't able to put together a smaller page which triggers this, but I have attached a full backtrace from gdb. -- -- Rogut?s Sparnuotos

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patch: drawing image map areas
by corvid＠lavabit.com March 20, 2010

March 20, 2010

This draws the shapes in image maps, which is quite nice when not loading images. There are two redrawing problems: If I try http://earthquake.usgs.gov/earthquakes/recenteqsww/ a little bit of the map is visible at the bottom of the viewport initially (geometry 850x630). The rectangles are visible, but not the polygons. If I page down or switch to another desktop and back, all is well. If I try http://www.sbrady.com/hotsource/html/imgmaps.html because it has bigger rectangles, when I scroll line by line, I get lines in my rectangle corresponding to the edge of the view. No problem with circles or polygons. All I'm doing is calling the fltk shape-drawing code through fltkviewbase, so I'd expect them all to work or break in the same way. I will probably change FltkViewBase::drawArc() so that (x,y) is the center like one would expect. That tricked me at first, and I might have been the one who wrote that code in the first place. I might make an additional FltkViewBase::drawPolygon() that accepts the SimpleVector of points and then calls addvertex() a lot rather than one addvertices() call. Slower, but they're just image maps, and the pointArray in Polygon::draw() here is too complicated (I had to look it up to get it quite right).

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Re: Using the tab or other keyboard keys to set focus on web page links...
by corvid＠lavabit.com March 14, 2010

March 14, 2010

Rajesh wrote: > My implementation details: > -------------------------- > > I am planning to implement a method in the exiting "FindTextState" > Class. I am planning to use a CharIterator to move iterate through a web > page and find out a link. I'm thinking of Layout having a separate thing for this, a KeyFocusState (or some such name). For an iterator, something like a focusable element iterator instead of a CharIterator. Where I could call nextFocusable() and get back 1) the Widget (the Embed widget for a form control, or the Textblock widget that contains a link), and 2) a linkNo that the iterator found in the word's style. Like if the user pressed the key for the next focusable thing (e.g., tab), the KeyFocusState stuff would do something like iterator->getFocusable() gives back Widget *w and int linkNo if (linkNo == -1) { /* form control */ w->focus(); the dw Widget would have a virtual function, and the Embed implementation would call resource->focus(), which would in turn call take_focus() on its fltk widget. } else { iterator->highlight(); } and when the user pressed the key to follow the link (e.g., enter), we'd be in something similar to a_UIcmd_scroll() calling a new function like layout->activateLink(), which would call something in FocusState (which has Widget and linkNo handy), which would then call layout->emitLinkPress(widget, linkNo, ...) All: Or is that putting too much intelligence into an iterator? (It's easy to wish for magic from the part that's fuzzier to us :) Something smaller and dumber for an iterator to do would be something like styleIterator. Get back style, spaceStyle, style, spaceStyle, (some style from descending into a non-Textblock child), spaceStyle..., but then there's also this need to get back the "BTW, I am an Embed!", which seems like an awkward pairing of things for an iterator to return. Or a sort of Word iterator, but Words are hidden...

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Using the tab or other keyboard keys to set focus on web page links...
by rmarathe＠i-rode.com March 11, 2010

March 11, 2010

Hi, I am trying to put in a patch to use the tab or other keyboard keys to set focus on web page links. I started implementing this based on Corvid's suggestion as mentioned under: 1. borrowing from the dw/findtext.cc iteration code. 2. checking when style->x_link != -1 or you're currently on an embedded form widget. I have implemented the first part but still needs test. I have a question while implementing the second part. Can you please tell me how to determine if we are on an embedded form widget currently. Can you please send me code snippets or guide me to implement this ? Thanks. thanks and regards, Rajesh Marathe.

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Regarding using the Tab/other keys to set focus on web links in Dillo
by rmarathe＠i-rode.com March 9, 2010

March 9, 2010

Hi Liyong, I came to know from Corvid's email that you had faced this problem (using Tab or other keys to set focus on web links in Dillo) earlier. Now, I am facing the same problem. Can you please share a portion of your code that does this functionality or at least give me more detailed steps to achieve this ? This would be very helpful as I am planning to use this on my Embedded platform too. Thanks and regards, Rajesh Marathe.

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cookie 32-bit time wrapping and possible gcc problem
by corvid＠lavabit.com March 8, 2010

March 8, 2010

Tried running my test/cookies program and got two failures from the 32-bit timestamp wrapping tests. Turned out that I had -O2 set. -O succeeds, and no optimization succeeds. If I insert a MSG("exptime+local_shift %ld\n", exptime + local_shift); after setting local_shift in Cookies_expires_attr(), it works even with -O2. This is with gcc-4.3.3. I'm going to get 4.4.3 and see what happens... PS I don't particularly expect anyone to rush off and try it for themselves, but if you do, it is good to run 'dpidc stop' between runs.

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