I want to change background color of a cell in GXT Grid, I am using GXT 3.0 .I have got one link which is related to my query( http://ui-programming.blogspot.in/2010/01/gxt-how-to-set-cell-grid-background.html) but setRenderer method is not present columnConfig in GXT 3.0 .How can i get desired output? pLz help.
Code i have done till now:-
ColumnConfig<Stock, Double> changeCol = new ColumnConfig<Stock, Double>(props.change(), 100, "Change");
changeCol.setCell(new AbstractCell<Double>() {
#Override
public void render(Context context, Double value, SafeHtmlBuilder sb) {
if (value == null) {
return;
}
store.get(context.getIndex());
GWT.log(DOM.getCaptureElement().getId());
String style = "style='background-color: " + (value < 0 ? "red" : "green") + "'";
String v = number.format(value);
sb.appendHtmlConstant("<span " + style + " qtitle='Change' qtip='" + v + "'>" + v + "</span>");
}
});
For those that need to change cell colour based on data in the grid, I've just had to do this (GXT 3.1) but unfortunately the solution isn't perfect.
In general, one can do custom cell rendering with ColumnConfig.setCell(MyCell) where 'MyCell' is a subclass of AbstractCell. Unfortunately there is the problem of 'padding' in the host 'div' which isn't coloured. There are a few ways around this...
The simplest way is to:
ColumnConfig.setCellPadding(false)
Render your own coloured divs that fill up the whole cell (with padding if desired)
Unfortunately this doesn't play well with single cell selection (CellSelectionModel). The css class for cell selection is obfuscated so it can't be referenced in other stylesheets. :(
My (ugly) alternative was to render a custom stylesheet that is linked in the module's html page (eg. Main.html). Then I can colour cells using css 'class' instead of 'style' attributes. IE:
Create a custom JSP that renders a stylesheet (content type 'text/css')
Link the stylesheet to the module html (after 'reset.css')
The stylesheet needs to have selector td.someClass (.someClass is not specific enough)
Use Grid.getView().setViewConfig() to supply a GridViewConfig that returns the appropriate class(es)
Unfortunately this requires a good knowledge of CSS rules and also the possible colours need to be known at user login time.
There may be a third way using the style attribute of the 'td' element. Have a look at this issue from Sencha:
http://www.sencha.com/forum/showthread.php?289347-Influencing-cell-td-style-in-a-grid&p=1057079 (work in progress)
Note that other styling options include:
Various ColumnConfig.setXxxClassName()
Various ColumnConfig.setXxxStyle()
Related
I'm building a simple code editor to help children learn HTML. One feature I'm trying to add is that when users mouseover their rendered code (in an iframe), the corresponding HTML code in the editor is highlighted. So, for example, if a user mouses-over an image of kittens, the actual code, , would be highlighted in the editor.
Mousing-over the iframe to get the html source for that element is the easy part, which I've done (using document.elementFromPoint(e.clientX, e.clientY in the iframe itself, and posting that up to the parent) - so that's not the part I need help with. The part I can't figure out is how to search for and highlight that string of selected code in the code editor.
I'm using Codemirror 6 for this project, as it seems as it will give me the most flexibility to create such a feature. However, as a Codemirror 6 novice, I'm struggling with the documentation to find out where I should start. It seems like the steps I need to complete to accomplish this are:
Search for a range in the editor's text that matches a string (ie.'<img src="kittens.gif"').
Highlight that range in the editor.
Can anyone out there give me some advice as to where in the Codemirror 6 API I should look to start implementing this? It seems like it should be easy, but my unfamiliarity with the Codemirror API and the terse documentation is making this difficult.
1. Search for a range in the editor's text that matches a string (ie.'<img src="kittens.gif"').
You can use SearchCursor class (iterator) to get the character's range where is located the DOM element in your editor.
// the import for SearchCursor class
import {SearchCursor} from "#codemirror/search"
// your editor's view
let main_view = new EditorView({ /* your code */ });
// will create a cursor based on the doc content and the DOM element as a string (outerHTML)
let cursor = new SearchCursor(main_view.state.doc, element.outerHTML);
// will search the first match of the string element.outerHTML in the editor view main_view.state.doc
cursor.next()
// display the range where is located your DOM element in your editor
console.log(cursor.value);
2. Highlight that range in the editor.
As described in the migration documentation here, marked text is replace by decoration. To highlight a range in the editor with codemirror 6, you need to create one decoration and apply it in a dispatch on your view. This decoration need to be provide by an extension that you add in the extensions of your editor view.
// the import for the 3 new classes
import {StateEffect, StateField} from "#codemirror/state"
import {Decoration} from "#codemirror/view"
// code mirror effect that you will use to define the effect you want (the decoration)
const highlight_effect = StateEffect.define();
// define a new field that will be attached to your view state as an extension, update will be called at each editor's change
const highlight_extension = StateField.define({
create() { return Decoration.none },
update(value, transaction) {
value = value.map(transaction.changes)
for (let effect of transaction.effects) {
if (effect.is(highlight_effect)) value = value.update({add: effect.value, sort: true})
}
return value
},
provide: f => EditorView.decorations.from(f)
});
// this is your decoration where you can define the change you want : a css class or directly css attributes
const highlight_decoration = Decoration.mark({
// attributes: {style: "background-color: red"}
class: 'red_back'
});
// your editor's view
let main_view = new EditorView({
extensions: [highlight_extension]
});
// this is where the change takes effect by the dispatch. The of method instanciate the effect. You need to put this code where you want the change to take place
main_view.dispatch({
effects: highlight_effect.of([highlight_decoration.range(cursor.value.from, cursor.value.to)])
});
Hope it will help you to implement what you want ;)
Have a look at #codemirror/search.
Specifically, the source code implementation of Selection Matching may be of use for you to adapt.
It uses Decoration.mark over a range of text.
You can use SearchCursor to iterate over ranges that match your pattern (or RegExpCursor)
Use getSearchCursor, something like this:
var cursor = cmEditor.getSearchCursor(keyword , CodeMirror.Pos(cmEditor.firstLine(), 0), {caseFold: true, multiline: true});
if(cursor.find(false)){ //move to that position.
cmEditor.setSelection(cursor.from(), cursor.to());
cmEditor.scrollIntoView({from: cursor.from(), to: cursor.to()}, 20);
}
Programmatically search and select a keyword
Take a look at getSearchCursor source code it it give some glow about how it works and its usage.
So use getSearchCursor for finding text and optionally use markText for highlighting text because you can mark text with setSelection method of editor.
Selection Marking Demo
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
lineNumbers: true,
styleSelectedText: true
});
editor.markText({line: 6, ch: 26}, {line: 6, ch: 42}, {className: "styled-background"});
And it seem this is what you are looking for:
codemirror: search and highlight multipule words without dialog
RegExpCursor is another option that you can use:
new RegExpCursor(
text: Text,
query: string,
options?: {ignoreCase?: boolean},
from?: number = 0,
to?: number = text.length
)
Sample usage at:
Replacing text between dollar signs for Mathml expression.
How to display form item label in Views exposed form instead of '- Any -'? To be more specific I use this code to replace select's default value text with custom text and want that custom text to be the label of that element:
function THEMENAME_form_views_exposed_form_alter(&$form, &$form_state) {
//dpm($form);
if ($form['#id'] == 'views-exposed-form-FORMID') {
$form['ITEMNAME']['#options']['All'] = t('My custom translatable text');
}
}
This works for custom text. What I want is to display its label instead of My custom translatable text with the simple code like:
$form['ITEMNAME']['#options']['All'] = $form['ITEMNAME']['#name'];
but have no luck on such and similar codes to work. According fo $dpm($form) output '#name', '#title' elements seem not to exist at all.
The goal is to have similar functionality of https://drupal.org/project/compact_forms or https://drupal.org/project/In-Field-Labels without another Javascript library (prefer to use couple PHP lines, please no JS solutions)
Your above code will work in case of select field but not for text field. If you need it to work for text fields you can try this
$form['ITEMNAME']['#attributes'] = array('placeholder' => array('My custom translatable text'));
or
$form['ITEMNAME']['#attributes'] = array('placeholder' =>$form['ITEMNAME']['#name']);
hope this helps you
is anyone have idea ,how to add specific style to GWT Datagrid?
I need to add style to specific row ( class="error") to show that row in red color.
More details:
Rendering the table using the GWT Datagrid. it has column called "type" .
the type can have different values like " connected" ,"disconnected" ,"error".
if the type is error then i need to render row with different style( need to show text in the
red color).
There's RowStyles for that exact purpose.
grid.setRowStyles(new RowStyles<Row>() {
#Override
public String getStyleNames(Row row, int rowIndex) {
return "error".equals(row.getType()) ? "error" : "";
}
});
Problem
Width of the <textarea> is defined by CSS class, for ex.: wMax or wDefault. In first case it is 100%, in the second, lets say 200px. By default TinyMCE converts everything to fixed width in pixels. Ofcourse I can set width:100% inside tinyMCE.init(), but that will not cover textarea's with wDefault / fixed with.
What I need
I need TinyMCE width to behave the same as original, % or px depending on it's CSS class.
If I could find a reference to the original textarea element within tinyMCE.init() procedure, then I could read CSS class from it, and set width: (textarea.hasClass('wMax') ? '100%' : null) or something like that
I am aware of the getElement() function, which gets me exactly that textarea. But where do I run it from? tinyMCE.activeEditor is null within init().
I'm currently still using TinyMCE 3, but it would be nice if you could answer this also for 4.x version, if there is any difference ofcourse...
Found the solution myself. Sharing.
Answering my own question in the title: It's not possible to refer to the textarea within init() procedure directly, because it does not run for each tinyMCE instance. It runs only once. But: TinyMCE has a customizable setup function, which does run for every instance and has all required references to solve the mentioned problem.
With the following code:
tinyMCE.init({
// ... your settings here ...
setup: function(ed){
if(ed.getElement().hasClass('wMax')){
ed.settings.width = '100%';
}
}
});
Any textarea with CSS class 'wMax' (replace with your own) will be replaced by TinyMCE instance having 100% width. All others will have a fixed width, equal to the width of the textarea at the moment of initialization. You can expand this approach with any width, like wHalf width:50% etc.
Note: .hasClass() function is a part of Mootools JS library. Replace with another if you use a different library.
I don't know if this will lead you into the right direction. I use this code to adjust the iframe height to fit the entered content. You could tweak it a bit to adjust its height and width to your needs (you will need to get the textarea by $('#' + ed.id) onInit.
Here is the function. Basically it changes the style attributes explicitly of the editor iframe
resizeIframe: function(frameid) {
var frameid = frameid ? frameid : this.editor.id+'_ifr';
var currentfr=document.getElementById(frameid);
if (currentfr && !window.opera){
currentfr.style.display="block";
if (currentfr.contentDocument && currentfr.contentDocument.body.offsetHeight) { //ns6 syntax
currentfr.height = currentfr.contentDocument.body.offsetHeight + 26;
}
else if (currentfr.Document && currentfr.Document.body.scrollHeight) { //ie5+ syntax
currentfr.height = currentfr.Document.body.scrollHeight;
}
styles = currentfr.getAttribute('style').split(';');
for (var i=0; i<styles.length; i++) {
if ( styles[i].search('height:') ==1 ){
styles.splice(i,1);
break;
}
};
currentfr.setAttribute('style', styles.join(';'));
}
},
So i have a GWT cellTable with various inputs, including selectboxes, EditTextCells and some links. I would like TAB to go along each cell.
However, currently i can only get the TAB switching to go between the selectboxes(when KeyboardSelectionPolicy.DISABLED). (ie from here). But it doesnt tab to the EditTextCells or other cells.
(potentially relatedly, EditText <input>s seem like they cannot have their tabindex!=-1, or else i see the cellTable throwing errors. (and it seems to warn in EditText that you shouldnt do this).
is there another tabIndex for EditText or other generic cells that I'm missing maybe? One guy here seemed like he couldnt get it to work and opt'd out.
But according to this issue at googleCode, other people are doing this successfully.
ok so adding the tabIndex does work. for editTextCell I added a new Template for the (normally just safehtml-rendered) text like this:
interface TemplateBasic extends SafeHtmlTemplates {
#Template("<Label tabindex=\"{1}\">{0}</Label>")
SafeHtml input(String value, String index);
}
and then later in render when it sets
...
else if (value != null) {
SafeHtml html = renderer.render(value);
sb.append(html) );
}
instead i used
else if (value != null) {
SafeHtml html = renderer.render(value);
sb.append(templatebasic.input(html.asString(), Integer.toString( context.getIndex() )) );
}
this should work for the checkboxcell too; overriding the renderer not to use the static defined INPUT_CHECKED/UNCHECKED with the tabIndex=-1
but im still thinking/hoping there might be a better way....
You can create a new Cell. Or, you can add some script to the CellTable to handle TABs and SHIFT+TABs.
Extend CellTable to achieve this by adding a tab handler would work for your needs. See this link.