I have defined a custom editor for my Vaadin 7 Grid
longColumn.setEditorField(getTextArea());
where getTextArea() is:
private Field<?> getTextArea() {
TextArea ta=new TextArea();
ta.setWidth("300px");
ta.setHeight("200px");
return ta;
}
The TextArea appears to be of the given size, but it is cut to the height of the row, and is completely unusable.
Is there any way to make the editor to be bigger in order to use a TextArea that big?
Add a custom height via CSS by adding a new style using setRowStyleGenerator() to the Grid.
Related
I read the CSS styling section (https://vaadin.com/docs/v14/flow/styling/styling-components) and it mentions that global CSS doesnt affect the 'INPUT" field in the shadow DOM, So styling has to be added to shdaow DOM, But unfortunately no where does it explicitly say HOW to add the styling to the shadow DOM. Note. im using mainly Flow pure java with a bit of CSS.
I tried retrieving the elementt from component then retrieving the shadowRoot, then from root, retrieve the 'input' element to add styling to it, unfortunately that didnt work, shadowroot was null (this code executed from the onAttach() method in the view class)
private void setTextAlignCenterForTextFields(TextField textField) {
//find the internal 'Input' and set the styling to text-align=center, unfortunately
// you cant do that with global css, since the 'input' element is in shadow root
textField.getElement()
.getShadowRoot()
.get()
.getChildren()
.filter( elem -> "INPUT".equalsIgnoreCase(elem.getTag()))
.forEach(inputElem -> inputElem.getStyle().set("text-align", "center"));
}
Any ideas would be appreciated. I'm using Vaadin version 14.5.1.
There's already a theme variant to align the text
centerTextField.addThemeVariants(TextFieldVariant.LUMO_ALIGN_CENTER);
see https://vaadin.com/components/vaadin-text-field/java-examples/theme-variants
As for how to attach CSS to shadow root, basically use themeFor, see https://vaadin.com/docs/v14/flow/styling/importing-style-sheets/#component-styles
You can use CSS to target the value part:
.textfieldClass::part(value) {
text-align: center;
}
This video explains styling CSS parts: https://youtu.be/Y0uxb4ga44Y
I am trying to add flag icons in a Vaadin Flow Combobox using a customer ComponentRenderer:
new ComponentRenderer<>(locale -> {
HorizontalLayout item = new HorizontalLayout();
item.setDefaultVerticalComponentAlignment(FlexComponent.Alignment.BASELINE);
Span langIcon = new Span();
langIcon.addClassNames("flag-icon", "flag-icon-" + getTranslation("App.Language.Flag", locale));
item.add(langIcon);
item.add(new Span(locale.getDisplayLanguage(locale)));
return item;
});
The icons come from flag-icon-css (see here) included via gradle compile dependency "org.webjars.bowergithub.lipis:flag-icon-css:3.3.0" and annotation #StyleSheet("frontend://bower_components/flag-icon-css/css/flag-icon.min.css") on my main layout class. In a different place with ListBox component, icons are shown as expected. However, when used via ComponentRenderer in a combobox nothing shows up.
Inspecting the HTML, I see that the <vaadin-combo-box-item> within ComboBox renders everything under its shadow root in contrast to <vaadin-item> within ListBox which renders it as <slot>. Why is that? And how could I use the flag icon CSS styles in combo box items?
I was wondering how can I enhance dynamically jQuery Mobile page?
I have tried to use these methods:
$('[data-role="page"]').trigger('create');
and
$('[data-role="page"]').page();
Also how can I prevent enhancement markup of check boxes only?
Intro:
There are several ways of enhancing dynamically created content markup. It is just not enough to dynamically add new content to jQuery Mobile page, new content must be enhanced with classic jQuery Mobile styling. Because this is rather processing heavy task there need to be some priorities, if possible jQuery Mobile needs to do as less enhancing as possible. Don't enhance whole page if only one component need's to be styled.
What does this all means? When page plugin dispatches a pageInit event, which most widgets use to auto-initialize themselves. it will automatically enhance any instances of the widgets it finds on the page.
However, if you generate new markup client-side or load in content via Ajax and inject it into a page, you can trigger the create event to handle the auto-initialization for all the plugins contained within the new markup. This can be triggered on any element (even the page div itself), saving you the task of manually initializing each plugin (listview button, select, etc.).
With this in mind lets discuss enhancement levels. There are three of them and they are sorted from the less resource demanding to higher ones:
Enhance a single component/widget
Enhance a page content
Enhance a full page content (header, content, footer)
Enhance a single component/widget:
Important: The below enhancement methods are to be used only on current/active page. For dynamically inserted pages, those pages and their contents will be enhanced once inserted into DOM. Calling any method on dynamically created pages / other than the active page, will result an error.
Every jQuery Mobile widget can be enhanced dynamically:
Listview :
Markup enhancement:
$('#mylist').listview('refresh');
Removing listview elements:
$('#mylist li').eq(0).addClass('ui-screen-hidden');
Enhancement example: http://jsfiddle.net/Gajotres/LrAyE/
Note that the refresh() method only affects new nodes appended to a list. This is done for performance reasons.
One of a listview high-points is a filtering functionality. Unfortunately, for some reason, jQuery Mobile will fail to dynamically add filter option to an existing listview. Fortunately there's a workaround. If possible, remove current listview and add another one with a filer option turned on.
Here's a working example: https://stackoverflow.com/a/15163984/1848600
$(document).on('pagebeforeshow', '#index', function(){
$('<ul>').attr({'id':'test-listview','data-role':'listview', 'data-filter':'true','data-filter-placeholder':'Search...'}).appendTo('#index [data-role="content"]');
$('<li>').append('Audi').appendTo('#test-listview');
$('<li>').append('Mercedes').appendTo('#test-listview');
$('<li>').append('Opel').appendTo('#test-listview');
$('#test-listview').listview().listview('refresh');
});
Button
Markup enhancement:
$('[type="button"]').button();
Enhancement example: http://jsfiddle.net/Gajotres/m4rjZ/
One more thing, you don't need to use a input element to create a button, it can be even done with a basic div, here's an example: http://jsfiddle.net/Gajotres/L9xcN/
Navbar
Markup enhancement:
$('[data-role="navbar"]').navbar();
Enhancement example: http://jsfiddle.net/Gajotres/w4m2B/
Here's a demo how to add dynamic navbar tab: http://jsfiddle.net/Gajotres/V6nHp/
And one more in pagebeforecreate event: http://jsfiddle.net/Gajotres/SJG8W/
Text inputs, Search inputs & Textareas
Markup enhancement:
$('[type="text"]').textinput();
Enhancement example: http://jsfiddle.net/Gajotres/9UQ9k/
Sliders & Flip toggle switch
Markup enhancement:
$('[type="range"]').slider();
Enhancement example: http://jsfiddle.net/Gajotres/caCsf/
Enhancement example during the pagebeforecreate event: http://jsfiddle.net/Gajotres/NwMLP/
Sliders are little bit buggy to dynamically create, read more about it here: https://stackoverflow.com/a/15708562/1848600
Checkbox & Radiobox
Markup enhancement:
$('[type="radio"]').checkboxradio();
or if you want to select/deselect another Radiobox/Checkbox element:
$("input[type='radio']").eq(0).attr("checked",false).checkboxradio("refresh");
or
$("input[type='radio']").eq(0).attr("checked",true).checkboxradio("refresh");
Enhancement example: http://jsfiddle.net/Gajotres/VAG6F/
Select menu
Markup enhancement:
$('select').selectmenu();
Enhancement example: http://jsfiddle.net/Gajotres/dEXac/
Collapsible
Unfortunately collapsible element can't be enhanced through some specific method, so trigger('create') must be used instead.
Enhancement example: http://jsfiddle.net/Gajotres/ck6uK/
Table
Markup enhancement:
$(".selector").table("refresh");
While this is a standard way of table enhancement, at this point I can't make it work. So instead use trigger('create').
Enhancement example: http://jsfiddle.net/Gajotres/Zqy4n/
Panels - New
Panel Markup enhancement:
$('.selector').trigger('pagecreate');
Markup enhancement of content dynamically added to Panel:
$('.selector').trigger('pagecreate');
Example: http://jsfiddle.net/Palestinian/PRC8W/
Enhance a page content:
In case we are generating/rebuilding whole page content it is best to do it all at once and it can be done with this:
$('#index').trigger('create');
Enhancement example: http://jsfiddle.net/Gajotres/426NU/
Enhance a full page content (header, content, footer):
Unfortunately for us trigger('create') can not enhance header and footer markup. In that case we need big guns:
$('#index').trigger('pagecreate');
Enhancement example: http://jsfiddle.net/Gajotres/DGZcr/
This is almost a mystic method because I can't find it in official jQuery Mobile documentation. Still it is easily found in jQuery Mobile bug tracker with a warning not to use it unless it is really really necessary.
Note, .trigger('pagecreate'); can suppose be used only once per page refresh, I found it to be untrue:
http://jsfiddle.net/Gajotres/5rzxJ/
3rd party enhancement plugins
There are several 3rd party enhancement plugins. Some are made as an update to an existing method and some are made to fix broken jQM functionalities.
Button text change
Unfortunately cant found the developer of this plugin. Original SO source: Change button text jquery mobile
(function($) {
/*
* Changes the displayed text for a jquery mobile button.
* Encapsulates the idiosyncracies of how jquery re-arranges the DOM
* to display a button for either an <a> link or <input type="button">
*/
$.fn.changeButtonText = function(newText) {
return this.each(function() {
$this = $(this);
if( $this.is('a') ) {
$('span.ui-btn-text',$this).text(newText);
return;
}
if( $this.is('input') ) {
$this.val(newText);
// go up the tree
var ctx = $this.closest('.ui-btn');
$('span.ui-btn-text',ctx).text(newText);
return;
}
});
};
})(jQuery);
Working example: http://jsfiddle.net/Gajotres/mwB22/
Get correct maximum content height
In case page header and footer has a constant height content div can be easily set to cover full available space with a little css trick:
#content {
padding: 0;
position : absolute !important;
top : 40px !important;
right : 0;
bottom : 40px !important;
left : 0 !important;
}
And here's a working example with Google maps api3 demo: http://jsfiddle.net/Gajotres/7kGdE/
This method can be used to get correct maximum content height, and it must be used with a pageshow event.
function getRealContentHeight() {
var header = $.mobile.activePage.find("div[data-role='header']:visible");
var footer = $.mobile.activePage.find("div[data-role='footer']:visible");
var content = $.mobile.activePage.find("div[data-role='content']:visible:visible");
var viewport_height = $(window).height();
var content_height = viewport_height - header.outerHeight() - footer.outerHeight();
if((content.outerHeight() - header.outerHeight() - footer.outerHeight()) <= viewport_height) {
content_height -= (content.outerHeight() - content.height());
}
return content_height;
}
And here's a live jsFiddle example: http://jsfiddle.net/Gajotres/nVs9J/
There's one thing to remember. This function will correctly get you maximum available content height and at the same time it can be used to stretch that same content. Unfortunately it cant be used to stretch img to full content height, img tag has an overhead of 3px.
Methods of markup enhancement prevention:
This can be done in few ways, sometimes you will need to combine them to achieve a desired result.
Method 1:
It can do it by adding this attribute:
data-enhance="false"
to the header, content, footer container.
This also needs to be turned in the app loading phase:
$(document).one("mobileinit", function () {
$.mobile.ignoreContentEnabled=true;
});
Initialize it before jquery-mobile.js is initialized (look at the example below).
More about this can be found here:
http://jquerymobile.com/test/docs/pages/page-scripting.html
Example: http://jsfiddle.net/Gajotres/UZwpj/
To recreate a page again use this:
$('#index').live('pagebeforeshow', function (event) {
$.mobile.ignoreContentEnabled = false;
$(this).attr('data-enhance','true');
$(this).trigger("pagecreate")
});
Method 2:
Second option is to do it manually with this line:
data-role="none"
Example: http://jsfiddle.net/Gajotres/LqDke/
Method 3:
Certain HTML elements can be prevented from markup enhancement:
$(document).bind('mobileinit',function(){
$.mobile.page.prototype.options.keepNative = "select, input";
});
Example: http://jsfiddle.net/Gajotres/gAGtS/
Again initialize it before jquery-mobile.js is initialized (look at the example below).
Markup enhancement problems:
Sometimes when creating a component from scratch (like listview) this error will occur:
cannot call methods on listview prior to initialization
It can be prevented with component initialization prior to markup enhancement, this is how you can fix this:
$('#mylist').listview().listview('refresh');
Markup overrding problems:
If for some reason default jQuery Mobile CSS needs to be changed it must be done with !important override. Without it default css styles can not be changed.
Example:
#navbar li {
background: red !important;
}
jsFiddle example: http://jsfiddle.net/Gajotres/vTBGa/
Changes:
01.02.2013 - Added a dynamic navbar demo
01.03.2013 - Added comment about how to dynamically add filtering to a listview
07.03.2013 - Added new chapter: Get correct maximum content height
17.03.2013 - Added few words to the chapter: Get correct maximum content height
29.03.2013 - Added new content about dynamically created sliders and fix an example bug
03.04.2013 - Added new content about dynamically created collapsible elements
04.04.2013 - Added 3rd party plugins chapter
20.05.2013 - Added Dynamically added Panels and contents
21.05.2013 - Added another way of setting full content height
20.06.2013 - Added new chapter: Markup overrding problems
29.06.2013 - Added an important note of WHEN to use enhancement methods
From JQMobile 1.4 you can do .enhanceWithin() on all the children http://api.jquerymobile.com/enhanceWithin/
var content = '<p>Hi</p>';
$('#somediv').html(content);
$('#somediv').enhanceWithin();
I build an app using smartGWT (3.1) (GWT: 2.5).
To hold changes to the various views (scrollbar-position in ListGrids etc.) I add all the views to the main canvas and just change their visibility (show() / hide())
(hide() all children then show() the one which was selected in the menu)
This works fine until I use hichcharts (gwt.highcharts-1.5.0.jar / highcharts.js -> 2.3.5).
no difference if I wrap the Chart in a smartGWT or GWT widget, when I hide the views some elements of the chart stays visible.
Ledgend-background, Ledgend-lines, and some dots from the data-points stays visible. It happens in firefox 18.0.2 and IE 9. In Chrome (24.0.1312.57 m) it works.
I try TabSet aswell. when i switch tabs (which should hide the 'old' tab) the same elements of the chart stays visible.
besides of the visibility-problem the still active Listener from the chart are another problem.
summary:
highcharts chart do not hide proper when parent-widgets hide (in firefox & IE).
For the display issues, and since you didn't provide any code example, I have used the wrapper provided on GWT Highcharts forum. With correct usage of hide/show calls (e.g. when tab is selected or deselected, call show or hide, respectively) I have managed to overcome the issue described in all browsers.
I had the same issue. I solved it by adding a tabSelectedHandler to the tabSet and inside that I show or hide the charts using StockChart.setVisible(boolean) depending on the selected tab.
tabSet.addTabSelectedHandler(new TabSelectedHandler()
{
#Override
public void onTabSelected(TabSelectedEvent event)
{
if (event.getTab().getTitle().equals("Charts"))
{
chart.setVisible(true);
}
else
{
chart.setVisible(false);
}
}
});
There seems to be not much information available about this subject so hopefully someone can give some suggestions.
I would like to change color and style of different parts of text in a stringgrid cell.
Example:
20-02-2011 - Document Title
Would it also be possible to show an icon in a stringgrid cell?
It is indeed possible to show icons or bitmaps in a string grid, the Monkey Styler blog includes an example of how to customise cell display in a FMX grid.
http://monkeystyler.com/blog/entry/firemonkey-grid-basics-custom-cells-and-columns
Thinking about the other part of your question though, you will have to build a style up to display text in different fonts, as yet FMX does not have a richtext equivalent or HTML rendering components (I'm sure the latter will come, the former I am not confident on getting for a while!). You would have to have a text component in the style for each different font size/style etc, you would need to name the text elements (using binding or stylename properties) and handle the setting of the text contents using code in the ongetvalue and onsetvalue events (I guess you could also use a onapplystyle event) to display some text in bold and some not.
The event handler would then use either a binding - which is easier to set but - in my experience - buggy;
mycell.binding['boldtext']:='sometext';
Or find a style element by stylename by using findstyleresource;
tempobj:=mycell.findstyleresource('boldtext');
if tempobj is ttext then
ttext(tempobj).text='sometext';
Excuse any bad coding style there, but you get the general idea (I hope) if you set autosize to true for the ttext components in the style and align them left you get - mostly - what you are after. The only issue is that the resulting text doesn't look quite seamless because autosizing and aligning left doesn't really give you the same space between the fonts that you would get with a richtext or HTML display. You should be able to fiddle with the padding (giving it a negative number for the left padding should allow you to remove any extra space) but you have to live with that not being entirely perfect compared to proper font hinting and alignment.