As you've probably found, there appears to be no equivalent way to add the following Excel form and associated VBA code to Google Sheets or Scripts or Forms:
Is there some add-in that can be used to pop up this image and its controls? This has to be used many times in an accounting sheet to categorize expenditures at tax time.
It may not look exactly the same but I was able to construct a custom dialog in a short period of time to show how HTML service can be used to produce similar results.
First I construct an HTML template that contains the 2 combo boxes with multiple lines.
HTML_Test.html
<!DOCTYPE html>
<html>
<head>
<base target="_top">
<?!= include('CSS_Test'); ?>
</head>
<body>
<div id="left">
<label for="expenseCategory">Expense Category</label><br>
<select id="expenseCategory" size="10">
</select>
</div>
<div id="middle">
<label for="expenseSubCategory">Expense Sub Category</label><br>
<select id="expenseSubCategory" size="10">
</select>
</div>
<?!= include('JS_Test'); ?>
</body>
</html>
Then a CSS file to contain all my element formatting.
CSS_Test.html
<style>
#expenseCategory {
width: 90%;
}
#expenseSubCategory {
width: 90%;
}
#left {
width: 25%;
float: left;
}
#middle {
width: 50%;
float: left;
}
</style>
And a javascript file for client side javascript. I've simply hard coded some data to show how the select elements are filled in but this could just as easily be done using template scripting, or google.script.run
<script>
var expenses = [["A","1","2","3"],
["B","4","5"],
["C","6","7","8","9","10"]
];
function expenseCategoryOnClick() {
try {
let expenseCategory = document.getElementById('expenseSubCategory');
expenseCategory.options.length = 0;
expenses[this.selectedIndex].forEach( (expense,index) => {
if( index > 0 ) {
let option = document.createElement("option");
let text = document.createTextNode(expense);
option.appendChild(text);
expenseCategory.appendChild(option);
}
}
);
}
catch(err) {
alert("Error in expenseCategoryOnClick: "+err)
}
}
(function () {
// load first expense
let expenseCategory = document.getElementById('expenseCategory');
expenseCategory.addEventListener("click",expenseCategoryOnClick);
expenses.forEach( expense => {
let option = document.createElement("option");
let text = document.createTextNode(expense[0]);
option.appendChild(text);
expenseCategory.appendChild(option);
}
);
expenseCategory = document.getElementById('expenseSubCategory');
expenses[0].forEach( (expense,index) => {
if( index > 0 ) {
let option = document.createElement("option");
let text = document.createTextNode(expense);
option.appendChild(text);
expenseCategory.appendChild(option);
}
}
);
}
)();
</script>
Then there is the server side code bound to a spreadsheet.
Code.gs
function onOpen(e) {
var menu = SpreadsheetApp.getUi().createMenu("Test");
menu.addItem("Show Test","showTest");
menu.addToUi();
}
// include(filename) required to include html files in the template
function include(filename) {
return HtmlService.createHtmlOutputFromFile(filename)
.getContent();
}
function showTest() {
var html = HtmlService.createTemplateFromFile("HTML_Test");
html = html.evaluate();
html.setWidth(800);
SpreadsheetApp.getUi().showModalDialog(html,"Test");
}
The dialog looks like this. Many more html elements can be added as needed. This just shows the basics. This may be more difficult than an wysiwig html editor but I find I have better control of the appearance and function of my pages this way. Notice I clicked "C" and the sub category is filled in automatically.
Related
How to find and highlight text in WKWebView? I have search option in my app which will search text inside WKWebview. I have to highlight the searched text in WKWebView.
I want to get "browser Find feature" in WKWebView.
I have tried some code in Mac browser which is working in Mac browser but not working in iPhone WKWebView.
I want search text between tags.
<!DOCTYPE html>
<html>
<head>
<title>Test page for Highlight Search Terms</title>
</head>
<body>
<input type="text" id="search" autofocus onkeyup="highlight(document.getElementById('search').value);" />
<div id="content">
<p>Here is some searchable <b>text</b> with some lápices in it, and more lápices, and some <b>for<i>mat</i>t</b>ing</p>
</div>
<script type="text/javascript">
function highlight(text) {
let colour = "#ff0";
unhighlight(document.body, 'ffff00');
while (window.find(text)) {
var range, sel;
if (window.getSelection) {
// IE9 and non-IE
try {
if (!document.execCommand("BackColor", false, colour)) {
makeEditableAndHighlight(colour);
}
} catch (ex) {
makeEditableAndHighlight(colour)
}
} else if (document.selection && document.selection.createRange) {
// IE <= 8 case
range = document.selection.createRange();
range.execCommand("BackColor", false, colour);
}
}
}
function makeEditableAndHighlight(colour) {
var range, sel = window.getSelection();
if (sel.rangeCount && sel.getRangeAt) {
range = sel.getRangeAt(0);
}
document.designMode = "on";
if (range) {
sel.removeAllRanges();
sel.addRange(range);
}
// Use HiliteColor since some browsers apply BackColor to the whole block
if (!document.execCommand("HiliteColor", false, colour)) {
document.execCommand("BackColor", false, colour);
}
document.designMode = "off";
}
function unhighlight(node, colour) {
if (node.nodeType == 1) {
var bg = node.style.backgroundColor;
node.style.backgroundColor = "";
}
var child = node.firstChild;
while (child) {
unhighlight(child, colour);
child = child.nextSibling;
}
}
</script>
</body>
</html>
I want to import an Excel file into my database using angularJS1, Hibernate 4.3.5, Spring mvc 4.2.4. The Excel file is imported via a window (table consisting of children "last name, first name", and parents), the table was filled before manually. The goal now is to fill the table automatically by importing an Excel file. I can read the Excel file on google (json format), but I can not import it into my database. The project consists of a front part (angularJS1) and a back part (hibernate, postgresSQL, DAO). Could you help me please ? This is since Thursday that I seek a solution. Thank you
Here is the code to read my excel file in json format : file : ... Controller.js (front part)
$scope.uploadFile = function (element) {
var file = element.files[0];
console.log("FILE", file);
var reader = new FileReader();
reader.onload = function (event) {
var data = event.target.result;
/*Call XLSX*/
var workbook = XLSX.read(data, {
type: 'binary'
});
/* DO SOMETHING WITH workbook HERE */
var first_sheet_name = workbook.SheetNames[0];
/* Get worksheet */
var worksheet = workbook.Sheets[first_sheet_name];
var excelData = XLSX.utils.sheet_to_json(worksheet);
console.log("EXCELDATA", excelData);
}
}
Here is a sample codepen example created for you.
angular.module('app', [])
.controller('ExcelReadCtrl', function($scope) {
$scope.data = [{firstName:'AAA',lastName:'BBB',age:30}];
$scope.READ = function() {
/*Checks whether the file is a valid excel file*/
var regex = /^([a-zA-Z0-9\s_\\.\-:])+(.xlsx|.xls)$/;
var xlsxflag = false; /*Flag for checking whether excel is .xls format or .xlsx format*/
if ($("#ngexcelfile").val().toLowerCase().indexOf(".xlsx") > 0) {
xlsxflag = true;
}
var reader = new FileReader();
reader.onload = function (e) {
var data = e.target.result;
if (xlsxflag) {
var workbook = XLSX.read(data, { type: 'binary' });
}
else {
var workbook = XLS.read(data, { type: 'binary' });
}
var sheet_name_list = workbook.SheetNames;
var cnt = 0;
sheet_name_list.forEach(function (y) { /*Iterate through all sheets*/
if (xlsxflag) {
var exceljson = XLSX.utils.sheet_to_json(workbook.Sheets[y]);
}
else {
var exceljson = XLS.utils.sheet_to_row_object_array(workbook.Sheets[y]);
}
if (exceljson.length > 0) {
for (var i = 0; i < exceljson.length; i++) {
$scope.data.push(exceljson[i]);
$scope.$apply();
}
}
});
}
if (xlsxflag) {
reader.readAsArrayBuffer($("#ngexcelfile")[0].files[0]);
}
else {
reader.readAsBinaryString($("#ngexcelfile")[0].files[0]);
}
};
});
<html ng-app="app">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.7.7/xlsx.core.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/xls/0.7.4-a/xls.core.min.js"></script>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"
crossorigin="anonymous"></script>
</head>
<body>
<div ng-app>
<h2>Excel Format should be same as table below, xls.core.min.js reads first row as headers</h2>
<div ng-controller="ExcelReadCtrl">
<form>
<input type="file" id="ngexcelfile" />
<input type="button" value="Read Data" ng-click="READ()" />
<br />
<br />
<table border=1>
<thead>
<tr>
<th>Last Name</th>
<th>First Name</th>
<th>Age</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="item in data">
<td>{{item.lastName}}</td>
<td>{{item.firstName}}</td>
<td>{{item.age}}</td>
</tr>
</tbody>
</table>
</form>
</div>
</div>
</body>
</html>
your excel format must be same as data you are trying to load.
Here is example format.
Once you load Excel data is stored in $scope.data use same to pass to backend
Instead of trying to read Excel on Front-End side just upload your excel to the server. Excel Reading via JS will consume a significant amount of MEM in browser.
On Java side its quite easy to read/Write Excel all you need is Apache POI
For Excel reading ref : https://www.mkyong.com/java/apache-poi-reading-and-writing-excel-file-in-java/
Once you done with excel reading, you can pass required data to hibernate to store in DB.
I have to read the excel file on the front because it is the user who update the data in the table by importing the Excel file through a upload interface.
i'm busy with a school project and I have to build a web app. One function that I want to use is Google Maps and HTML5 Geo Location to pin point what the location of the mobile user is.
I have found this HTML5 Geo Location function on http://merged.ca/iphone/html5-geolocation and works very well for me. However, I want the adress data to be placed into a form so that I can submit it to my database when a mobile user Geo locates his position. This causes the marker to be saved and can be viewed on a global website.
Who know how to get the "Your address:" data loaded into a input field of a form?
Below you can find my Html file. Maybe somebody got a better suggestion perhaps?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<title>HTML 5 Geolocation</title>
<style>
#map {
height:300px;
width:300px;
}
</style>
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">google.load("jquery", "1"); google.load("jqueryui", "1");</script>
<script src="http://maps.google.com/maps?file=api&v=2&sensor=false&key=ABQIAAAAiUzO1s6QWHuyzxx-JVN7ABSUL8-Cfeleqd6F6deqY-Cw1iTxhxQkovZkaxsxgKCdn1OCYaq7Ubz3SQ" type="text/javascript"></script>
<script type="text/javascript" src="http://api.maps.yahoo.com/ajaxymap?v=3.8&appid=n2wY9mzV34Hsdslq6TJoeoJDLmAfzeBamSwJX7jBGLnjM7oDX7fU.Oe91KwUbOwqzvc-"></script>
<script type="text/javascript">
// Geolocation with HTML 5 and Google Maps API based on example from maxheapsize: http://maxheapsize.com/2009/04/11/getting-the-browsers-geolocation-with-html-5/
//
// This script is by Merge Database and Design, http://merged.ca/ -- if you use some, all, or any of this code, please offer a return link.
var map;
var mapCenter
var geocoder;
var fakeLatitude;
var fakeLongitude;
function initialize()
{
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition( function (position) {
// Did we get the position correctly?
// alert (position.coords.latitude);
// To see everything available in the position.coords array:
// for (key in position.coords) {alert(key)}
mapServiceProvider(position.coords.latitude,position.coords.longitude);
}, // next function is the error callback
function (error)
{
switch(error.code)
{
case error.TIMEOUT:
alert ('Timeout');
break;
case error.POSITION_UNAVAILABLE:
alert ('Position unavailable');
break;
case error.PERMISSION_DENIED:
alert ('Permission denied');
break;
case error.UNKNOWN_ERROR:
alert ('Unknown error');
break;
}
}
);
}
else
{
alert("I'm sorry, but geolocation services are not supported by your browser or you do not have a GPS device in your computer. I will use a sample location to produce the map instead.");
fakeLatitude = 49.273677;
fakeLongitude = -123.114420;
//alert(fakeLatitude+', '+fakeLongitude);
mapServiceProvider(fakeLatitude,fakeLongitude);
}
}
function mapServiceProvider(latitude,longitude)
{
if (window.location.querystring['serviceProvider']=='Yahoo')
{
mapThisYahoo(latitude,longitude);
}
else
{
mapThisGoogle(latitude,longitude);
}
}
function mapThisYahoo(latitude,longitude)
{
var map = new YMap(document.getElementById('map'));
map.addTypeControl();
map.setMapType(YAHOO_MAP_REG);
map.drawZoomAndCenter(latitude+','+longitude, 3);
// add marker
var currentGeoPoint = new YGeoPoint( latitude, longitude );
map.addMarker(currentGeoPoint);
// Start up a new reverse geocoder for addresses?
// YAHOO Ajax/JS/Rest API does not yet support reverse geocoding (though they do support it via Actionscript... lame)
// So we'll have to use Google for the reverse geocoding anyway, though I've left this part of the script just in case Yahoo! does support it and I'm not aware of it yet
geocoder = new GClientGeocoder();
geocoder.getLocations(latitude+','+longitude, addAddressToMap);
}
function mapThisGoogle(latitude,longitude)
{
var mapCenter = new GLatLng(latitude,longitude);
map = new GMap2(document.getElementById("map"));
map.setCenter(mapCenter, 15);
map.addOverlay(new GMarker(mapCenter));
// Start up a new reverse geocoder for addresses?
geocoder = new GClientGeocoder();
geocoder.getLocations(latitude+','+longitude, addAddressToMap);
}
function addAddressToMap(response)
{
if (!response || response.Status.code != 200) {
alert("Sorry, we were unable to geocode that address");
} else {
place = response.Placemark[0];
$('#address').html('Your address: '+place.address);
}
}
window.location.querystring = (function() {
// by Chris O'Brien, prettycode.org
var collection = {};
var querystring = window.location.search;
if (!querystring) {
return { toString: function() { return ""; } };
}
querystring = decodeURI(querystring.substring(1));
var pairs = querystring.split("&");
for (var i = 0; i < pairs.length; i++) {
if (!pairs[i]) {
continue;
}
var seperatorPosition = pairs[i].indexOf("=");
if (seperatorPosition == -1) {
collection[pairs[i]] = "";
}
else {
collection[pairs[i].substring(0, seperatorPosition)]
= pairs[i].substr(seperatorPosition + 1);
}
}
collection.toString = function() {
return "?" + querystring;
};
return collection;
})();
</script>
</head>
<body onLoad="initialize()">
<div id="content">
<div id="map"></div>
<p id="address"></p>
<form id="ContactForm" action="">
<p>
<label>Topic</label>
<input id="event" name="event" maxlength="120" type="text" autocomplete="off"/>
</p>
<p>
<label>Address</label>
<input id="address" name="address" maxlength="120" type="text" autocomplete="off"/>
</p>
<input id="send" type="button" value="Send"/>
<input id="newcontact" name="newcontact" type="hidden" value="1"></input>
</form>
</div>
</body>
</html>
You have to use JavaScript to set the value of address input field, this way
1- Add name attribute to the form and input.
2- document.formName.inputName.value=place.address;
Good Luck
From http://codemirror.net/doc/manual.html, I only find getRange(),
undo(), redo() etc, and I can't find cut(), copy() and paste API,
and more when I try to run editor.execCommand("cut"), I get the error.
Could you help me? Thanks!
Using clipboard.js, you can define the text() function to grab the value of the CodeMirror's inner document.
Store a reference to the (<textarea>) editor's selector for convenience.
var editorSelector = '#editor' // or '#editor + .CodeMirror';
Instantiate a new ClipBoard object with reference to your button.
new Clipboard('.clip-btn-native', {
text: function(trigger) {
return getCodeMirrorNative(editorSelector).getDoc().getValue();
}
});
Retrieve a CodeMirror Instance via native JavaScript.
function getCodeMirrorNative(target) {
var _target = target;
if (typeof _target === 'string') {
_target = document.querySelector(_target);
}
if (_target === null || !_target.tagName === undefined) {
throw new Error('Element does not reference a CodeMirror instance.');
}
if (_target.className.indexOf('CodeMirror') > -1) {
return _target.CodeMirror;
}
if (_target.tagName === 'TEXTAREA') {
return _target.nextSibling.CodeMirror;
}
return null;
};
Demo
Please see complete; in-depth demo over at JSFiddle.
There are no CodeMirror APIs for cut/copy/paste because browser security restrictions forbid JavaScript from accessing the clipboard programmatically. Paste could be used to steal private data and Cut/Copy can be used as a more elaborate attack vector.
The browser's own native code handles user gestures that access the clipboard (keyboard shortcuts and context menu items), based solely on the currently selected text or focused text field.
This SO thread has a good summary of attempts to work around these restrictions. CodeMirror's approach is the first bullet: it uses a hidden textarea to ensure that user clipboard gestures work, but that still doesn't support programmatic APIs.
But there is a partial workaround: use a small Flash widget (this is the 2nd bullet in the thread above). Flash relaxes the restrictions on Copy/Cut (but not Paste) a bit. It still has to be triggered by some user event, but it could be something like clicking a button in your HTML UI. Wrappers like ZeroClipboard and Clippy make it simple to access to these capabilities without needing to know Flash. You'd need to write a little glue code to pull the appropriate string from CodeMirror when copying, but it shouldn't be too bad.
Add a hidden contenteditable div to your textarea editor wrapper. Contenteditable divs respect new lines and tabs, which we need when copying code.
Here is my CodePen demo
var content = $('.content');
var toCopy = content.find('.copy-this');
// initialize the editor
var editorOptions = {
autoRefresh: true,
firstLineNumber: 1,
lineNumbers: true,
smartIndent: true,
lineWrapping: true,
indentWithTabs: true,
refresh: true,
mode: 'javascript'
};
var editor = CodeMirror.fromTextArea(content.find(".editor")[0], editorOptions);
content[0].editor = editor;
editor.save();
// set editors value from the textarea
var text = content.find('.editor').text();
editor.setValue(text);
// setting with editor.getValue() so that it respects \n and \t
toCopy.text(editor.getValue());
$(document).on('click', '.copy-code', function() {
var content = $(this).closest('.content');
var editor = content[0].editor;
var toCopy = content.find('.copy-this')[0];
var innerText = toCopy.innerText // using innerText here because it preserves newlines
// write the text to the clipboard
navigator.clipboard.writeText(innerText);
});
.content {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.CodeMirror {
height: fit-content !important;
}
.copy-code {
background: #339af0;
width: fit-content;
cursor: pointer;
}
<!-- resources -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.35.0/codemirror.css" />
<script src="https://codemirror.net/lib/codemirror.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.40.0/mode/javascript/javascript.min.js"></script>
<script src=""></script>
<script src=""></script>
<script src=""></script>
<script src=""></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="content">
<!-- button to copy the editor -->
<div class="copy-code" title="copy code">copy</div>
<!-- add contenteditable div as it respects new lines when copying unlike textarea -->
<div class="copy-this" contenteditable style="display: none"></div>
<textarea class="editor" style="display: none;">// here is a comment
// here is another comment
</textarea>
</div>
In Facebook status update box, when I type # and start typing and choose a name, say Steven Gerrard, from the friends list suggested by fb, my friend's name is highlighted in the textarea like this
I checked with Firebug and there's only
a div.highlighter which contains sort of formated text (Steven Gerrard is within b tags)
a textarea inside a div.uiTypeahead. Nothing interesting i could find
and a hidden input, that contains the actual text that will be posted: #[100001915747xxx:Steven Gerrard] is awesome
What is the secret trick behind this? Normal rich text editors like ckeditor usually have an iframe to display the text and an actual textarea to keep the original content. But in this case, I do not see anything. Someone please shed some lights?
I would like to make something like this but have no clue where to begin. Also, if I would like to display a small thumb next to my friend's name, is it possible at all?
Here is how it works:
You superpose the textarea (in front) and a div (behind) that will have the same size, and the same font size.
The textarea must have a transparent background, so we can see its text, but also see the div behind it.
The div behind it will have a white text and white background, so the text it contains will be transparent.
You set a hook on the textarea's keyup, and you process the text it contains as HTML: replace the line breaks by <br/>, replace the double spaces by , and also replace all the words that you want to highlight by a version surrounded by <span style="background-color: #D8DFEA;"></span>.
Since you can see the highlight div behind the textarea, and that the text the highlight div contains is perfectly aligned with the text in the textarea, and that the <span> is visible, you will have the illusion that the text in the textarea is highlighted.
I've written a quick example based on jquery so you can try it yourself, without too much code to analyze.
Here is a sample code you can just copy-paste-save and try:
This sample code will highlight a defined set of word, here: "hello" and "world".
I'll let you adapt it the way you want.
<html>
<head>
<title></title>
<!-- Load jQuery -->
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<!-- The javascript xontaining the plugin and the code to init the plugin -->
<script type="text/javascript">
$(function() {
// let's init the plugin, that we called "highlight".
// We will highlight the words "hello" and "world",
// and set the input area to a widht and height of 500 and 250 respectively.
$("#container").highlight({
words: ["hello","world"],
width: 500,
height: 250
});
});
// the plugin that would do the trick
(function($){
$.fn.extend({
highlight: function() {
// the main class
var pluginClass = function() {};
// init the class
// Bootloader
pluginClass.prototype.__init = function (element) {
try {
this.element = element;
} catch (err) {
this.error(err);
}
};
// centralized error handler
pluginClass.prototype.error = function (e) {
// manage error and exceptions here
//console.info("error!",e);
};
// Centralized routing function
pluginClass.prototype.execute = function (fn, options) {
try {
options = $.extend({},options);
if (typeof(this[fn]) == "function") {
var output = this[fn].apply(this, [options]);
} else {
this.error("undefined_function");
}
} catch (err) {
this.error(err);
}
};
// **********************
// Plugin Class starts here
// **********************
// init the component
pluginClass.prototype.init = function (options) {
try {
// the element's reference ( $("#container") ) is stored into "this.element"
var scope = this;
this.options = options;
// just find the different elements we'll need
this.highlighterContainer = this.element.find('#highlighterContainer');
this.inputContainer = this.element.find('#inputContainer');
this.textarea = this.inputContainer.find('textarea');
this.highlighter = this.highlighterContainer.find('#highlighter');
// apply the css
this.element.css('position','relative');
// place both the highlight container and the textarea container
// on the same coordonate to superpose them.
this.highlighterContainer.css({
'position': 'absolute',
'left': '0',
'top': '0',
'border': '1px dashed #ff0000',
'width': this.options.width,
'height': this.options.height,
'cursor': 'text'
});
this.inputContainer.css({
'position': 'absolute',
'left': '0',
'top': '0',
'border': '1px solid #000000'
});
// now let's make sure the highlit div and the textarea will superpose,
// by applying the same font size and stuffs.
// the highlighter must have a white text so it will be invisible
this.highlighter.css({
'padding': '7px',
'color': '#eeeeee',
'background-color': '#ffffff',
'margin': '0px',
'font-size': '11px',
'font-family': '"lucida grande",tahoma,verdana,arial,sans-serif'
});
// the textarea must have a transparent background so we can see the highlight div behind it
this.textarea.css({
'background-color': 'transparent',
'padding': '5px',
'margin': '0px',
'font-size': '11px',
'width': this.options.width,
'height': this.options.height,
'font-family': '"lucida grande",tahoma,verdana,arial,sans-serif'
});
// apply the hooks
this.highlighterContainer.bind('click', function() {
scope.textarea.focus();
});
this.textarea.bind('keyup', function() {
// when we type in the textarea,
// we want the text to be processed and re-injected into the div behind it.
scope.applyText($(this).val());
});
} catch (err) {
this.error(err);
}
return true;
};
pluginClass.prototype.applyText = function (text) {
try {
var scope = this;
// parse the text:
// replace all the line braks by <br/>, and all the double spaces by the html version
text = this.replaceAll(text,'\n','<br/>');
text = this.replaceAll(text,' ',' ');
// replace the words by a highlighted version of the words
for (var i=0;i<this.options.words.length;i++) {
text = this.replaceAll(text,this.options.words[i],'<span style="background-color: #D8DFEA;">'+this.options.words[i]+'</span>');
}
// re-inject the processed text into the div
this.highlighter.html(text);
} catch (err) {
this.error(err);
}
return true;
};
// "replace all" function
pluginClass.prototype.replaceAll = function(txt, replace, with_this) {
return txt.replace(new RegExp(replace, 'g'),with_this);
}
// don't worry about this part, it's just the required code for the plugin to hadle the methods and stuffs. Not relevant here.
//**********************
// process
var fn;
var options;
if (arguments.length == 0) {
fn = "init";
options = {};
} else if (arguments.length == 1 && typeof(arguments[0]) == 'object') {
fn = "init";
options = $.extend({},arguments[0]);
} else {
fn = arguments[0];
options = $.extend({},arguments[1]);
}
$.each(this, function(idx, item) {
// if the component is not yet existing, create it.
if ($(item).data('highlightPlugin') == null) {
$(item).data('highlightPlugin', new pluginClass());
$(item).data('highlightPlugin').__init($(item));
}
$(item).data('highlightPlugin').execute(fn, options);
});
return this;
}
});
})(jQuery);
</script>
</head>
<body>
<div id="container">
<div id="highlighterContainer">
<div id="highlighter">
</div>
</div>
<div id="inputContainer">
<textarea cols="30" rows="10">
</textarea>
</div>
</div>
</body>
</html>
Let me know if you have any question or if you need help with this code.
After reviewing the way of Facebook do this, I see that the text shown on the screen is:
<span class="highlighterContent"><b>Ws Dev</b> is good</span>
That span is put in a table (with lots of div container), which is style accordingly.
So I think this is the process:
When you type in the box, Facebook does have a textarea that capture what you type, but use javascript to show the typed HTML content in a table.
When you submit, the formatted content in a hidden input (that you already spot in the question) get submitted. It's like "#[100001915747xxx:Steven Gerrard] is awesome".
When the formatted message submit, it is saved to the database. Everytime the page get loaded, from the saved message the HTML is composed and return.
To get the similar effect, you can use any jQuery autocomplete plugin.