Javascript Open Download Dialog
Dibe Naro
I have a field in a datagrid where I want to be able to use the html editor to create and edit content. The column width even with resizing does not create a good UX so I want to launch a dialog/popup html editor launched from the inline edit field template instead to give more screen space but just for this one field, the other fields are ok in normal in line edit.
I can trigger a dialog from a button in an inline edit template and pass the data field as a parameter to the html editor page. What I need is to pass the edited value back from the html editor to the inline edit data field so that it can be inserted into the database. It's really a case of passing a value back and forth.
Any page can be presented as a modal dialog by adding the data-rel="dialog" attribute to the page anchor link. When the "dialog" attribute is applied, the framework adds styles to add rounded corners, margins around the page and a dark background to make the "dialog" appear to be suspended above the page.
By default, the dialog will open with a 'pop' transition. Like all pages, you can specify any page transition you want on the dialog by adding the data-transition attribute to the link. To make it feel more dialog-like, we recommend specifying a transition of "pop", "slidedown" or "flip".
Possible values include: fade, pop, flip, turn, flow, slidefade, slide, slideup, slidedown, none.
When any link is clicked within a dialog, the framework will automatically close the dialog and transition to the requested page, just as if the dialog were a normal page. Nevertheless, dialogs can also be chained, as explained below under "Chaining Dialogs". Similarly, a link that opens a popup will also leave the dialog in place.
If the dialog has a header the framework will add a close button at the left side of the header. You can change the position by adding data-close-btn="right" to the dialog container. If you don't want a close button in the header or add a custom close button, you can use data-close-btn="none".
To create a "cancel" button in a dialog, just link to the page that triggered the dialog to open and add the data-rel="back" attribute to your link. This pattern of linking to the previous page is also usable in non-JS devices as well.
For JavaScript-generated links, you can simply set the href attribute to "#" and use the data-rel="back" attribute. You can also call the dialog's close() method to programmatically close dialogs, for example: $( ".ui-dialog" ).dialog( "close" ).
Just like the page plugin, you can set a dialog's close button text through an option or data attribute. The option can be configured for all dialogs by binding to the mobileinit event and setting the $.mobile.dialog.prototype.options.closeBtnText property to a string of your choosing, or you can place the data attribute data-close-btn-text to configure the text from your markup.
Since dialogs are typically used to support actions within a page, the framework does not include dialogs in the hash state history tracking. This means that dialogs will not appear in your browsing history chronology when the Back button is clicked. For example, if you are on a page, click a link to open a dialog, close the dialog, then navigate to another page, if you were to click the browser's Back button at that point you will navigate back to the first page, not the dialog.
Please note: If a dialog opens another dialog (chaining), closing the last one with a link of type data-rel="back" will always navigate to the previous dialog until the root-page of type data-role="page" is reached. This guarantees a consistent navigation between dialogs.
Dialogs can also be used more like a control sheet to offer multiple buttons if you simply remove the top margin from the dialog's inner container element. For example, if your dialog page had a class of my-dialog, you could add this CSS to pin that dialog to the top: .ui-dialog.my-dialog .ui-dialog-contain margin-top: 0 , or you could just apply that style to all dialogs with .ui-dialog .ui-dialog-contain margin-top: 0 .
For the sake of readability, dialogs have a default width of 92.5% and a max-width of 500 pixels. There is also a 10% top margin to give dialogs larger top margin on larger screens, but collapse to a small margin on smartphones. The dialog's inner container is shifted towards the top with 15px to hide the corner styling if a dialog is used as a control sheet (see above). To override these styles, add the following CSS override rule to your stylesheet and tweak as needed:
I can't think of a Configuration Variable that provides that, however, if the File Open works as it does in V8i, entry No.1 in the Directory drop-down list should take you to the folder of the currently opened DGN file.
I've no idea if its changed in CONNECT. If you don't have a DGN opened, it will take you to the folder of the last opened DGN file. However, if you have a DGN open, it updates to that folder path. Thats the V8i behaviour.
Dialogs and modals are the essential components for any web application. Still, it takes quite an effort for us to create and define default behavior logic for it using the existing div element. As a result, we usually end up with a third-party dialog component to save the day.
Unlike other HTML5 elements, the dialog element comes with built-in APIs and some basic CSS stylings. By design, the dialog element has two states - visible (open) or hidden (close), indicated by a single property open:
When running the about code on the browser, you won't see the dialog as it is not visible by default. We need to bind the onclick event of the button with id "open-dialog-btn" using the addEventListener method as follows:
Once the dialog is open, we must bind the other menu buttons and the header button to the proper event handlers and close the dialog accordingly. To do so, we add the relevant id to the button controls:
Once the dialog is open, the browser will focus on the first button (in this case, it's our close button on the dialog header) or any button with the autofocus attribute within the dialog. When you close the dialog, the browser restores the focus on the button we used to open it.
However, if you want to add an animation effect on closing and opening dialog programmatically, note that you will lose this built-in feature support and have to implement the tab navigation focus yourself.
We can now refactor our previous example dialog to have all the sections wrapped under a single form with method='dialog", and remove all the click event listeners for dialog buttons. The final code should be similar to the following:
Whenever dialog is closed, it will trigger this function, and you can use data.returnValue to decide whether the user clicks on a Cancel button or a Submit button. To do so, you need to add the value attribute to the mentioned buttons, as follows:
At this point, you already get familiar with how to work with dialog and its APIs. The dialog comes with basic CSS stylings, but to be fair, it is not precisely beautiful as we want ?. So next, we will perform some essential customization to the dialog appearance.
When using the showModal() method to open the dialog, the dialog automatically generates a ::backdrop element with a default background color. We can use the selector ::backdrop to customize the backdrop or change its opacity. For example, let's change the backdrop color to a pastel purple color (#d2cbff) and with 70% opacity:
The good news is Google recently announced the full support for dialog and its APIs in all major browsers except Internet Explorer. We now can enjoy the benefit of a built-in dialog element and start customizing it to our needs. Awesome, isn't it?
With the dialog element, composing a reusable Dialog component in the front-end framework becomes more straightforward and less overhead, especially regarding accessibility support. You can also use the same approach to create a Modal or Toast notification component. Next, how about trying to make a Dialog component in your favorite framework like Vue or React using the dialog element? It should be fun ?!
A modal dialog is a special type of pop-up box on a web page: a pop-up that interrupts the user to focus on itself. There aresome valid use cases for popping up a dialog, but great considerationshould be made before doing so. Modal dialogs force users to focus on specific content, and, temporarily at least, ignorethe rest of the page.
Dialogs can be either modal (only the content in the dialog can be interacted with) or non-modal (it's still possible to interactwith content outside of the dialog). Modal dialogs are displayed on top of the rest of the page content. The restof the page is inert and, by default, obscured by a semi-transparent backdrop.
Here is an example of a modal . Open the dialog with the "Open modal dialog" button. Once opened, there are three ways to close the dialog: the escape key, submitting a form witha button that has the formmethod="dialog"set (or if the form itself has method="dialog" set), and the HTMLDialogElement.close() method.
When a dialog is closed, modal or not, focus is returned to the element that opened the dialog. If you programmaticallyopen a dialog not based on user action, reconsider. If you must, ensure that focus is put back where it was prior to the dialog opening,especially if the user dismisses the dialog without interacting with it.
The HTMLDialogElement.show() similarly opens a dialog, but without adding a backdrop or causing anything to become inert.The escape key does not close non-modal dialogs. Because of this, it is even more important to ensure you include a methodof closing the non-modal dialog. In doing so, if the closer is outside the dialog, realize the focus will go to the elementthat opened the dialog, which may not be the best user experience.
While a button to close the dialog is not officially required by the specification, consider it as required. The escape keywill close a modal dialog, but not a non-modal one. A visible button that is able to receive focus improves accessibility anduser experience.
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