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working for most cases
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@paawak
paawak committed May 8, 2016
1 parent 9186719 commit 1351ab4
Showing 1 changed file with 187 additions and 168 deletions.
355 changes: 187 additions & 168 deletions js/bhasha.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,199 +2,218 @@ goog.provide('bhasha.indic.attachEditor');

goog.require('goog.events.KeyHandler');


/**
* Entry point:
* Attaches a KeyListener to the text-area, so that English chars are replaced by Indic chars as the user types
* @param {Element} indicTextEditor The text-area where Indic Text is to be typed.
* Entry point: Attaches a KeyListener to the text-area, so that English chars
* are replaced by Indic chars as the user types
*
* @param {Element}
* indicTextEditor The text-area where Indic Text is to be typed.
*/
bhasha.indic.attachEditor = function(indicTextEditor) {
var indicEditor = new bhasha.indic.IndicEditor(indicTextEditor);
indicEditor.attachIndicListener();
indicEditor.attachIndicListener();
};

/**
* Manages the data and interface for a single text-area.
* @param {Element} indicTextEditor The text-area where Indic Text is to be typed.
*
* @param {Element}
* indicTextEditor The text-area where Indic Text is to be typed.
* @constructor
*/
bhasha.indic.IndicEditor = function(indicTextEditor) {
this.indicTextEditor = indicTextEditor;
this.indicTextEditor = indicTextEditor;
};

/**
* Attaches a KeyListener to the text-area, so that English chars are replaced by Indic chars as the user types
* Attaches a KeyListener to the text-area, so that English chars are replaced
* by Indic chars as the user types
*/
bhasha.indic.IndicEditor.prototype.attachIndicListener = function() {
var keyHandler = new goog.events.KeyHandler(this.indicTextEditor, true);
goog.events.listen(keyHandler, goog.events.KeyHandler.EventType.KEY, this.replaceWithindicStrings);
var keyHandler = new goog.events.KeyHandler(this.indicTextEditor, true);
goog.events.listen(keyHandler, goog.events.KeyHandler.EventType.KEY,
this.replaceWithindicStrings);
};

/**
* Event handler for KeyPressed. Replaces English chars with Indic chars
* @param {goog.events.Event} keyEvent The event object.
*
* @param {goog.events.Event}
* keyEvent The event object.
*/
bhasha.indic.IndicEditor.prototype.replaceWithindicStrings = function(keyEvent) {
var indicTextEditor = keyEvent.target;
var selectionStart = indicTextEditor.selectionStart;
var selectionEnd = indicTextEditor.selectionEnd;
var charTyped = String.fromCharCode(keyEvent.charCode);
var indicString = indicStringMap[charTyped];
console.log("***selectionStart: " + selectionStart + ", selectionEnd: " + selectionEnd + ", charTyped: " + charTyped + ", indicString: " + indicString);

if (keyTypedHistory.length == 3) {
keyTypedHistory = "";
}

if (indicString) {
keyTypedHistory += charTyped;
console.log("replacing roman chars with indic chars");
console.log("keyTypedHistory: " + keyTypedHistory);
keyEvent.preventDefault();
var existingText = indicTextEditor.value;

if (existingText.length == selectionStart) {
indicTextEditor.value = existingText + indicString;
} else {
var textBeforeCaret = existingText.slice(0, selectionStart);
var textAfterCaret = existingText.slice(selectionEnd);
//console.log("textBeforeCaret=" + textBeforeCaret);
//console.log("textAfterCaret=" + textAfterCaret);
indicTextEditor.value = textBeforeCaret + indicString + textAfterCaret;
indicTextEditor.setSelectionRange(selectionStart + 1, selectionStart + 1);
}

} else {
keyTypedHistory = "";
}
};
var indicTextEditor = keyEvent.target;
var selectionStart = indicTextEditor.selectionStart;
var selectionEnd = indicTextEditor.selectionEnd;
var charTyped = String.fromCharCode(keyEvent.charCode);
var indicString = indicStringMap[charTyped];
console.log("***selectionStart: " + selectionStart + ", selectionEnd: "
+ selectionEnd + ", charTyped: " + charTyped + ", indicString: "
+ indicString);

var keyTypedHistory = "";
if (keyTypedHistory.length == 3) {
keyTypedHistory = "";
}

if (indicString) {
keyTypedHistory += charTyped;
console.log("replacing roman chars with indic chars");
console.log("keyTypedHistory: " + keyTypedHistory);
keyEvent.preventDefault();
var existingText = indicTextEditor.value;

var indicStringMap = {
"AU" : "\u0994",
"AN" : "\u0981",
"AI" : "\u0990",
"AH" : "\u0983",
"ee" : "\u09c0",
"ddh" : "\u09a2",
"kh" : "\u0996",
"SS" : "\u09b7\u09cd",
"GH" : "\u0998\u09cd",
"SH" : "\u09b6\u09cd",
"dh" : "\u09a7",
"jj" : "\u09af",
"dd" : "\u09a1",
"jh" : "\u099d",
"RR" : "\u09dc\u09cd",
"LI" : "\u098c",
"RH" : "\u09dd\u09cd",
"rrr" : "\u09c3",
"nga" : "\u0999",
"TTH" : "\u09a0\u09cd",
"z" : "\u099c",
"y" : "\u09df",
"ou" : "\u09cc",
"x" : "\u0995\u09cd\u09b7",
"w" : "\u09cd\u09ac",
"v" : "\u09ad",
"u" : "\u09c1",
"ch" : "\u099b",
"t" : "\u09a4",
"uu" : "\u09c2",
"s" : "\u09b8",
"nya" : "\u099e",
"oo" : "\u09c2",
"r" : "\u09b0",
"ii" : "\u09c0",
"q" : "\u0995",
"p" : "\u09aa",
"o" : "\u09cb",
"n" : "\u09a8",
"m" : "\u09ae",
"l" : "\u09b2",
"k" : "\u0995",
"EE" : "\u0988",
"j" : "\u099c",
"i" : "\u09bf",
"KH" : "\u0996\u09cd",
"DDH" : "\u09a2\u09cd",
"h" : "\u09b9",
"g" : "\u0997",
"f" : "\u09ab",
"e" : "\u09c7",
"d" : "\u09a6",
"c" : "\u099a",
"b" : "\u09ac",
"a" : "\u09be",
"Z" : "\u099c\u09cd",
"Y" : "\u09cd\u09af",
"X" : "\u0995\u09cd\u09b7\u09cd",
"W" : "\u09cd\u09ac",
"V" : "\u09ad\u09cd",
"U" : "\u0989",
"T" : "\u09a4\u09cd",
"S" : "\u09b8\u09cd",
"tt" : "\u099f",
"R" : "\u09b0\u09cd",
"nn" : "\u09a3",
"Q" : "\u0995\u09cd",
"P" : "\u09aa\u09cd",
"O" : "\u0993",
"DH" : "\u09a7\u09cd",
"N" : "\u09a8\u09cd",
"M" : "\u09ae\u09cd",
"L" : "\u09b2\u09cd",
"JJ" : "\u09af\u09cd",
"K" : "\u0995\u09cd",
"DD" : "\u09a1\u09cd",
"J" : "\u099c\u09cd",
"JH" : "\u099d\u09cd",
"I" : "\u0987",
"H" : "\u09b9\u09cd",
"G" : "\u0997\u09cd",
"th" : "\u09a5",
"F" : "\u09ab\u09cd",
"E" : "\u098f",
"au" : "\u09cc",
"D" : "\u09a6\u09cd",
"C" : "\u099a\u09cd",
"B" : "\u09ac\u09cd",
"A" : "\u0985",
"RRR" : "\u098b",
"NGA" : "\u0999\u09cd",
"9" : "\u09ef",
"8" : "\u09ee",
"ai" : "\u09c8",
"7" : "\u09ed",
"6" : "\u09ec",
"5" : "\u09eb",
"4" : "\u09ea",
"3" : "\u09e9",
"ss" : "\u09b7",
"OU" : "\u0994",
"2" : "\u09e8",
"gh" : "\u0998",
"1" : "\u09e7",
"0" : "\u09e6",
"CH" : "\u099b\u09cd",
"aa" : "\u0986",
"." : "\u09f7",
"UU" : "\u098a",
"OO" : "\u098a",
"NYA" : "\u099e\u09cd",
"II" : "\u0988",
"ON" : "\u0982",
"sh" : "\u09b6",
"aT" : "\u09ce",
"rr" : "\u09dc",
"TT" : "\u099f\u09cd",
"NN" : "\u09a3\u09cd",
"rh" : "\u09dd",
"tth" : "\u09a0",
"TH" : "\u09a5\u09cd"
};
if (keyTypedHistory.length > 1) {
var indicTextForTypedHistory = indicStringMap[keyTypedHistory];
if (indicTextForTypedHistory) {
var textBeforeHistory = existingText.slice(0,
existingText.length - (keyTypedHistory.length - 1));
// keyTypedHistory = "";
indicTextEditor.value = textBeforeHistory
+ indicTextForTypedHistory;
return;
}
}

if (existingText.length == selectionStart) {
indicTextEditor.value = existingText + indicString;
} else {
var textBeforeCaret = existingText.slice(0, selectionStart);
var textAfterCaret = existingText.slice(selectionEnd);
// console.log("textBeforeCaret=" + textBeforeCaret);
// console.log("textAfterCaret=" + textAfterCaret);
indicTextEditor.value = textBeforeCaret + indicString
+ textAfterCaret;
indicTextEditor.setSelectionRange(selectionStart + 1,
selectionStart + 1);
}

} else {
keyTypedHistory = "";
}
};

var keyTypedHistory = "";

var indicStringMap = {
"AU" : "\u0994",
"AN" : "\u0981",
"AI" : "\u0990",
"AH" : "\u0983",
"ee" : "\u09c0",
"ddh" : "\u09a2",
"kh" : "\u0996",
"SS" : "\u09b7\u09cd",
"GH" : "\u0998\u09cd",
"SH" : "\u09b6\u09cd",
"dh" : "\u09a7",
"jj" : "\u09af",
"dd" : "\u09a1",
"jh" : "\u099d",
"RR" : "\u09dc\u09cd",
"LI" : "\u098c",
"RH" : "\u09dd\u09cd",
"rrr" : "\u09c3",
"nga" : "\u0999",
"TTH" : "\u09a0\u09cd",
"z" : "\u099c",
"y" : "\u09df",
"ou" : "\u09cc",
"x" : "\u0995\u09cd\u09b7",
"w" : "\u09cd\u09ac",
"v" : "\u09ad",
"u" : "\u09c1",
"ch" : "\u099b",
"t" : "\u09a4",
"uu" : "\u09c2",
"s" : "\u09b8",
"nya" : "\u099e",
"oo" : "\u09c2",
"r" : "\u09b0",
"ii" : "\u09c0",
"q" : "\u0995",
"p" : "\u09aa",
"o" : "\u09cb",
"n" : "\u09a8",
"m" : "\u09ae",
"l" : "\u09b2",
"k" : "\u0995",
"EE" : "\u0988",
"j" : "\u099c",
"i" : "\u09bf",
"KH" : "\u0996\u09cd",
"DDH" : "\u09a2\u09cd",
"h" : "\u09b9",
"g" : "\u0997",
"f" : "\u09ab",
"e" : "\u09c7",
"d" : "\u09a6",
"c" : "\u099a",
"b" : "\u09ac",
"a" : "\u09be",
"Z" : "\u099c\u09cd",
"Y" : "\u09cd\u09af",
"X" : "\u0995\u09cd\u09b7\u09cd",
"W" : "\u09cd\u09ac",
"V" : "\u09ad\u09cd",
"U" : "\u0989",
"T" : "\u09a4\u09cd",
"S" : "\u09b8\u09cd",
"tt" : "\u099f",
"R" : "\u09b0\u09cd",
"nn" : "\u09a3",
"Q" : "\u0995\u09cd",
"P" : "\u09aa\u09cd",
"O" : "\u0993",
"DH" : "\u09a7\u09cd",
"N" : "\u09a8\u09cd",
"M" : "\u09ae\u09cd",
"L" : "\u09b2\u09cd",
"JJ" : "\u09af\u09cd",
"K" : "\u0995\u09cd",
"DD" : "\u09a1\u09cd",
"J" : "\u099c\u09cd",
"JH" : "\u099d\u09cd",
"I" : "\u0987",
"H" : "\u09b9\u09cd",
"G" : "\u0997\u09cd",
"th" : "\u09a5",
"F" : "\u09ab\u09cd",
"E" : "\u098f",
"au" : "\u09cc",
"D" : "\u09a6\u09cd",
"C" : "\u099a\u09cd",
"B" : "\u09ac\u09cd",
"A" : "\u0985",
"RRR" : "\u098b",
"NGA" : "\u0999\u09cd",
"9" : "\u09ef",
"8" : "\u09ee",
"ai" : "\u09c8",
"7" : "\u09ed",
"6" : "\u09ec",
"5" : "\u09eb",
"4" : "\u09ea",
"3" : "\u09e9",
"ss" : "\u09b7",
"OU" : "\u0994",
"2" : "\u09e8",
"gh" : "\u0998",
"1" : "\u09e7",
"0" : "\u09e6",
"CH" : "\u099b\u09cd",
"aa" : "\u0986",
"." : "\u09f7",
"UU" : "\u098a",
"OO" : "\u098a",
"NYA" : "\u099e\u09cd",
"II" : "\u0988",
"ON" : "\u0982",
"sh" : "\u09b6",
"aT" : "\u09ce",
"rr" : "\u09dc",
"TT" : "\u099f\u09cd",
"NN" : "\u09a3\u09cd",
"rh" : "\u09dd",
"tth" : "\u09a0",
"TH" : "\u09a5\u09cd"
};

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