Custom control development with TMS WEB Core for Visual Studio Code, an intern reports
At tmssoftware.com we love to have interns. I believe it is a fantastic experience to learn young aspiring software developers about Delphi, its eco-system, its amazing productivity and at the same time, absorb a lot of energy, get new fresh ideas and get to know what drives and motivates the next generation of software developers. So, also this school year, we had 2 interns learning all about Delphi, TMS WEB Core, Object Pascal, components and much more here at tmssoftware.com. Today, we want to give the word to our intern, and very soon colleague, Bradley who did a lot of stunning work this school year and tells in his first blog post about building his first custom control for TMS WEB Core. Nothing but an amazing and exciting story! So, with pleasure, I give the word to Bradley: A first custom web control Having only one year experience using Delphi and TMS WEB Core, I was assigned the (at first sight) daunting task of developing my first ever custom web control, namely a chat box control. I had only been developing web applications since I joined tmssoftware.com as an intern, so clearly writing a component was something completely new. Using the available documentation and the experience of my mentor Bruno I quickly obtained the necessary skills for developing a TMS WEB Core custom control, the TWebChatBox control. First steps To gain some experience, I first developed another very small control, a custom toggle button control to switch a web application between full-screen and normal mode. I went for developing the custom control directly from TMS WEB Core for Visual Studio Code because I just feel more comfortable for web projects to use this IDE. I had the “privilege” to use first the alpha and then the beta version of TMS WEB Core for Visual Studio Code v1.3 (released yesterday btw) as this introduced component package support. Using the new package support for installing custom controls made it very easy to test the control, also at design-time. The development of this first small control allowed me to get used to the concept of custom controls as well as the steps involved to get it installed in the IDE. Starting the chatbox implementation After I was comfortable enough with the principle of custom controls. I’ve started building the chat box component. As there were a ton of features on the requirements list, I had actually no idea where to start. I’ve focused first of all on a working way of sending/receiving messages. When I had that going, I started focusing on adding a basic design, followed up by adding the necessary properties for manipulating said chat box. I think implementing collections as a way of managing messages was the only thing I really struggled with. Having never implemented anything like this, figuring out how to implement the chat message bubbles at collection item level was a challenge. If you add a message to your collection, a chat message bubble will be generated and displayed in the chat control. The collection item will also keep a reference of the chat message bubble so that you can manipulate it later on. A chat bubble contains several HTML elements. We have a SPAN for the message. For the user avatar there is an IMG element. […]
