The Open Web Application Security Project ® (OWASP) is a nonprofit foundation that works to improve the security of software. Through community-led open source software projects, hundreds of local chapters worldwide, tens of thousands of members, and leading educational and training conferences, the OWASP Foundation is the source for.
- A web application (or web app) is application software that runs on a web server, unlike computer-based software programs that are stored locally on the Operating System (OS) of the device. Web applications are accessed by the user through a web browser with an active internet connection. These applications are programmed using a client–server modeled structure—the user ('client') is.
- Plan the function and elements of your website. Decide on the necessary pages and organize.
To create HTML files, you can use simple text editors, ordesktop applications such as word processors, to manipulate code byhand. You can also use specialized HTML authoring systems to automatethe coding.
Text editors
If you prefer to code HTML by hand, you can use a simple texteditor to create web pages. Brackets is anexcellent free HTML editing application from Adobe available for bothWindows and Mac. Common text editors for Windows include Notepad andWordPad; both programs are standard in Windows. For Mac, TextEdit(standard in Mac OS X) and TextMate are popular. Also for Mac,BBEdit is acombination text and HTML editor. Major Unix text editorsinclude Nano, Pico, Emacs, and vi.
Note: If you use a text editor or other desktopapplication to create web pages, be sure to save these files with the.html or .htm file extension. Also, avoidfilenames with two or more words unless the words are linked by dashesor underscores. For example, this filename would not work:
But this filename would:
Web authoring tools
Dedicated HTML editing programs offer a variety of web-orientedfeatures not found in other programs. Many allow you to quickly andeasily incorporate Java applets, JavaScript, animatedgraphics, web forms, and other advanced features. These programsalso allow you to quickly design whole web sites with dozens ofdifferent pages. An example of a web design program is AdobeDreamweaver. A freeware web design program called Amaya isavailable from the World Wide WebConsortium.
Adobe's Dreamweaver, and a great deal of other Adobe software, isavailable to IU students, faculty, and staff for download viaIUware, or on DVD through campus bookstores. SeeAbout Adobe software at IU
Note: If your web authoring software doesn'tinclude an SFTP publishing option, you will need separate SFTPsoftware to transfer your files to the web server. Examples of SFTP softwareinclude WinSCP (Windows) and Cyberduck (Mac); both are available from IUWare.
Can HTML, CSS and Javascript really be used to build Desktop Applications?
The Answer is Yes 😄
In this Article we will be focussing mainly on how Electron can be used to create desktop applications with Web Technologies like HTML, CSS and Javascript
Electron can be used to build Desktop Apps with HTML, CSS and Javascript. Also these apps work for multiple platforms like Windows, Mac, Linux and so on.
Digital piano software download. Electron Combines Chromium and NodeJS into a single Runtime. This enables Us to run the HTML, CSS and Javascript Code as a desktop application.
If Electron is used directly, then some manual setup is needed before building your application. Also if you want to use angular, react, vue or any other framework or library, you will need to manually configure for that.
Electron Forge makes the above things much easier.
It provides template applications with angular, react, vue and other frameworks. This avoids the extra manual setups needed.
Also it provides an easy way to build and package the application. It also provides many other features which can be found in their documenation.
Ensure you have NodeJS installed. It can be installed from here
Install Electron Forge Globally using the following command
Use the following command to create your application
simple-desktop-app-electronjs is the name of the application
The above command will take some time to run.
Once it finishes running, Start the application using the following commands
This should open up a window like the one shown below
The application created has a folder structure. Here I will be mentioning some of the important things in this folder structure
package.json
It has information about the application you are creating, it has all the dependencies needed for the app and also it has some scripts. Some of the scripts are already pre configured and you can add new scripts as well.
The config.forge path has all the configurations which are specific to ElectronJS. For example make-targets is used specify the target make files for various platforms like Windows, Mac or Linux.
Also package.json has 'main': 'src/index.js' which indicates that src/index.js is the starting point of the application
src/index.js
According to package.json, index.js is the main script. The process which runs the main script is known as the Main Process. So Main Process runs the index.js script.
The main process is used to display GUI elements. It does this by creating Web Pages.
Each Web page created runs in a process called as renderer process
Main Process and Renderer process
The purpose of the Main Process is to create web pages using a BrowserWindow Instance.
The BrowserWindow Instance uses a renderer process to run each Web page.
Each App can have only one Main Process but can have many renderer processes Magic box casino.
It is possible to communicate between the main and the renderer process as well. This will not be covered in this article.
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Electron Architecture showing main and renderer process. The file names can vary
abcd.html is shown as a second webpage in the above architecture. But in our code we won't be having a second web page.
src/index.html
index.js loads the index.html file into a new BrowerWindow Instance. Apple support driver software.
What this basically means is that, index.js creates a new GUI Window, and loads it with index.html web page. The index.html web page runs in its own renderer process.
Code in index.js explained
Most of the code created in index.js has good comments explaining what it does. Here I will mention a few key points to note in index.js
The above code snippet basically creates a BrowserWindow Instance and loads index.html into the BrowserWindow.
You would see app used often in the code. For example take the below code snippet.
app is used to control the applications's event life cycle.
The above code snippet says that when the application is ready, load the first window.
Similarily app can be used to perform other actions on various events. For example it can be used to perform some action right before the application closes and so on.
Writing the Code
Let us use the same application we used before and modify it slightly to create a temperature converter application.
First Let us install Bootstrap. Install bootstrap using the following command
Copy the following code into src/index.html
The above code does the following
- Creates a text box with id celcius. whenever anything is typed in this textbox, celciusToFahrenheit() function is called.
- Creates a text box with id fahrenheit. whenever anything is typed in this textbox, fahrenheitToCelcius() function is called.
- Whenever a new value is typed in celcius text box, the value in the fahrenheit text box displays the same temperature in fahrenheit
- Whenever a new value is typed in fahrenheit text box, the value in the celcius text box displays the same temperature in celcius
The 2 functions which do the temperature conversion are present in renderer.js Heidis bier haus slot.
Create a file called renderer.js inside src. Copy the following code into it.
celciusToFahrenheit() function reads the value in celcius text box, converts it to fahrenheit and writes the new temperature into fahrenheit text box.
fahrenheitToCelcius() function does the exact opposite of this.
Running the application
Run the application using the following command
This should display the following window. Try it out with different values.
Packaging the application
The command to package the application is
This command will take some time to run. Once it finishes check the out folder within the project folder.
I tested this in a windows machine. This creates a folder called simple-desktop-app-electronjs-win32-x64 inside out folder
So in the out/simple-desktop-app-electronjs-win32-x64 folder, the command creates an .exe file for this application. Clicking on the exe file automatically starts the desktop application.
The folder name simple-desktop-app-electronjs-win32-x64 can be broken down as appname-platform-architecture where
- appname = simple-desktop-app-electronjs
- platform = win32
- architecture = x64
When you run this command without any parameters, by default it packages for the platform which you are using for development
Let's say you want to package for a different platform and architecture. Then you can use the following syntax
For example, in order to package for linux you can use the following command
When you run this command without any parameters, by default it packages for the platform which you are using for development
Let's say you want to package for a different platform and architecture. Then you can use the following syntax
For example, in order to package for linux you can use the following command
This will create a folder called as simple-desktop-app-electronjs-linux-x64 inside out folder.
Creating a make File
In order to create a make file or an installer for the application, use the following command
This command will take some time to run. Once it finishes check the out folder within the project folder.
The out/make folder will have a windows installer for the desktop application.
When you run this command without any parameters, by default it creates the installer for the platform which you are using for development Good free video software.
Code
The code for this desktop application is available in my github repo
You now know how to create desktop applications using HTML, CSS and Javascript.
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This article covered very basic concepts of electron and electron-forge.
To know more about them, you can checkout their documentation.
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