chapter 4  defining features with opensocial javascript references

... connection associated with that socket on a specified remote host and port The server uses the accept( ) call to intercept the incoming connection and initiate communication with the client Now ... applications must associate these characteristics with a newly created socket For example, in the following line, the SH file handle is associated with the newly created socket PF_INET indicates ... assigns $! with an error message Use die( ) after connect( ) to stop the program and report any errors Writing Data to a Network Connection To write to the file handle associated with the open...

Ngày tải lên: 20/10/2013, 10:15

... URL References When you need to quickly get a list of all the references in an HTML page, here's a utility you can use to fetch an HTML page from a server and print out the URLs referenced within ... on to the web server you specify This allows you to things like HTML form postings with POST, or a file upload with PUT, and selectively look at the results At this point, it's really all up to ... use strict; use Socket; # include Socket module require 'tcp.pl'; # file with Open_TCP routine require 'web.pl'; # file with parseURL routine use vars qw($opt_h $opt_H $opt_r $opt_d); use Getopt::Std;...

Ngày tải lên: 20/10/2013, 10:15

... element As with class, the ID is specified in the XUL with an attribute (e.g., ) and in the CSS with the pound sign preceding the ID itself In this example, the menu with an ... example, all menus with a XUL baseline class have no borders and a nine-point font size Note that you can use the class without the preceding XUL element to skin all XUL elements with a given class ... attribute selector allows you to style XUL elements with particular attributes or with attributes of a particular value In Example 4-2, all elements with a disabled attribute set to true will have...

Ngày tải lên: 28/10/2013, 15:15

... 4.2.2.7 Element relation selectors Contextual subgroups elements appearing within other elements, such as italicized text within a element or a in HTML can be grouped in CSS, but this ... menuitem has a border only when it appears within the toolbar whose class is given as "primary." In the parent-child example, all menu items in a menu with the id "file" are made bold Using +, ... expensive with each new level, and that the descendent operation is particularly processor-intensive 4.2.2.8 The !important keyword As you might imagine, when you have a technology with such...

Ngày tải lên: 28/10/2013, 15:15

... select the item, it appears momentarily with a dark gray background and white lettering, like reverse video The Quit menu item, unlike others, appears with a black background Note that it also ... preinstalled with the browser The Classic skin is modeled after earlier versions of the Mozilla UI and of the Netscape 4.x Communicator product It has the familiar light grey box look, with the larger, ... smoother overall look, with rounded edges on many of the widgets, subtle color differentiations, gradients, and 3D icons However, both skins sit on top of the same XUL With one notable exception...

Ngày tải lên: 07/11/2013, 09:15

... for these bindings is located in the content subdirectories with the binding XML files In this way, they "stay with" the widget and not with the selected skin You can easily extend or overwrite ... file loaded in Mozilla with no skin information The second is the same XUL file with the global skin loading instruction at the top The third is a screenshot of that XUL file with an instruction ... widgets is defined Even if you create a skin that looks completely different than the skins installed with Mozilla, you should import the global skin to avoid having to recreate so much of the basic...

Ngày tải lên: 07/11/2013, 09:15

... child elements) in which you can define new XUL content, new JavaScript, and new XPConnected interfaces CSS glues the XUL together with the XBL In the first part of the snippet in Example 4-13, ... 4.5.1 Binding New Widgets to the Interface Using XBL A description of skins wouldn't be complete without a mention of binding widgets by using XBL, a very powerful feature of CSS in Mozilla The ... sometimes they are installed in the user profile and sometimes you create them yourself they come with example rules that are commented out However, you can uncomment them and add your own rules...

Ngày tải lên: 07/11/2013, 09:15

... brief , text , line , or html These produce an error message with no trace, a multiline error with trace information, a single-line error with tab-separated fields (suitable for writing to a log), ... first component in the stack If this method is called with an integer argument, then that number is used as an index number into the stack Just as with Perl arrays, negative integers start at the ... this value is Buffer-Related Methods The following methods all deal with Mason's buffer objects A typical request starts off with a single base buffer For each component that is called in the...

Ngày tải lên: 14/12/2013, 12:15

... turn the same, and so on Buffers are also used to implement features like the request's scomp() method So why would you want to play with buffers? Chances are you won't want to simply add more ... attribute with undef as its value and an attribute that is not found To make that distinction, use the attr() method and wrap it in an eval {} block, or use this method in conjunction with the ... '$undefined' => { default => ' undef' } } Note the difference between an argument with no default value and an argument with a default value of undef Also, as you can see, the default value for each...

Ngày tải lên: 14/12/2013, 12:15

... privately scoped anonymous subroutine references in Perl Creating Components on the Fly You may encounter situations in which you want to use Mason's templating features and data management tools, ... require actual shared memory segments and can be done with modules like IPC::Shareable ), or among multiple components (this can easily be done with global variables) It is also unwise to use variables ... the method call Sharing Data Among Component Sections By default, the scope of variables created within an block, a Perl line, or any other Mason markup sections is the entire component...

Ngày tải lên: 14/12/2013, 12:15

... structures, again a taglib-esque idea The answer is yes, with some caveats We say "with caveats" because due to the way this feature is implemented, with closures, you have to jump through a few hoops ... inheritance to create flexible, maintainable Mason sites Now we show how inheritance interacts with other Mason features, such as multiple component roots and multiple autohandlers Inheritance and Multiple ... of the components become very simple If you get familiar with Mason's inheritance model, you can create very sophisticated applications with a minimum of redundancy and hassle Subrequests Once...

Ngày tải lên: 14/12/2013, 12:15

... (http://www.dannyg.com/ javascript/ puzzle/mapgame.htm) When to use JavaScript The preceding examples demonstrate a wide range of applications for JavaScript, but by no means they come close to exhausting JavaScript s ... Every reference typically starts with the most global scope — the window for client-side JavaScript — and narrows focus with each “dot” (.) delimiter 43 44 Part 11 JavaScript Tutorial If you have ... can create with JavaScript, I show you several applications from the CD-ROM (in the folder named Bonus Applications Chapters) I strongly suggest you open the applications and play with them in...

Ngày tải lên: 24/01/2014, 09:20

... cards provides Ethernet LAN switching with MAC learning, local VLAN significance, and full QoS support MPBE also provides Layer switchport-like features without the full switchport implementation ... Ethernet virtual circuit (EVC) features: – Frame matching: EVC with any supported encapsulation (Dot1q, default, untagged) – Frame rewrite: Any supported (ingress and egress with push, pop, and translate) ... Layer Features LACP Support for EVC Port Channel • Port channel membership is statically configured with LACP allowed in the next phase • You can apply QoS policies under EVCs on a port-channel with...

Ngày tải lên: 25/01/2014, 11:20

... b1_2out(OUT1, OUT2, IN); // gate instantiation without instance name not (OUT1, IN); // legal gate instantiation 11 Primitive gates Bufif/notif Gates with an additional control signal on buf and ... or1(OUT, IN1, IN2); nand na1_3inp(OUT, IN1, IN2, IN3); nor nor1(OUT, IN1, IN2); // gate instantiation without instance name xor x1(OUT, IN1, IN2); and (OUT, IN1, IN2); // legal gate instantiation xnor ... - Like schematics, but using text: netlist - Boring when write, and hard to decode - Essential without integrated design tools Structural model  Structural Models are built from gate primitives,...

Ngày tải lên: 07/03/2014, 14:20

... workings of the system The stop points could be optimized with back-testing software, but as a general rule, with S&P futures at or above 1000 and with $VIX in the low-tomid-20’s, I use a stop of 5.00 ... run of trades by CHOOSING A SYSTEM 125 your system? If so, you must either trade with more capital or find a system with a smaller drawdown While we are on the subject, let us discuss drawdown because ... points to be computed with the S&P 500 futures prices Those entry rules are well-defined However, there must be well-defined exit rules as well You must use stops that are in line with the volatility...

Ngày tải lên: 03/07/2014, 19:20

... Figure 4-2 U.S DOLLAR INDEX WITH ITS 10-DAY SIMPLE MOVING AVERAGE Market made a top here Price crosses moving average Chart of daily prices of the U.S Dollar Index with its 10-day simple moving ... number of permutations and combinations of what can be done with moving averages is staggering Figure 4-3 shows the U.S Dollar Index with its 5-day and 10-day simple moving averages superimposed ... instead of being plotted in alignment with the price of Day t, might be shifted forward (to the right) so it is plotted on the price chart to correspond with Day t+2 (the day after tomorrow)...

Ngày tải lên: 04/07/2014, 13:20

... easy to analyze risks associated with a single period without using Crystal Ball For example, if we know that the rate of return on Stock A is normally distributed with mean 10 percent and standard ... 4.35 Second step in using Batch Fit with data in file BatchFit.xls FIGURE 4.36 Third step in using Batch Fit with data in file BatchFit.xls 69 70 FINANCIAL MODELING WITH CRYSTAL BALL AND EXCEL FIGURE ... vertical axis because probability for continuous random variables is associated with intervals on the horizontal axis and not with single values Because they represent probabilities for intervals rather...

Ngày tải lên: 05/07/2014, 18:20

... Camera Raw ߜ Done: The Done button, with or without the Option/Alt key, simply updates the image’s metadata with the adjustments you’ve made and closes Camera Raw without opening the image 13 327258-ch08.qxp ... required Antialiasing is a yes/no option, with no numeric field to worry about Figure 8-5 compares a diagonal with no antialiasing, with anti-aliasing, and with a 1-pixel feather Figure 8-5: Anti-aliasing ... that you can something to those pixels without doing it to all the pixels in your image Photoshop shows you what part of the image is within the selection with a flashing dashed line (Now that...

Ngày tải lên: 27/08/2012, 14:35