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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | 1x 1x 1x 9x 1x 9x 9x 9x 1x 1x 1x 9x 9x 9x 1x 1x 1x 9x 9x 1x 1x 8x 8x 8x 25x 25x 25x 25x 25x 25x 25x 8x 8x 25x 25x 25x 8x 9x 9x 1x | import {KeyboardHandler} from "./KeyboardHandler";
interface KeyEventFunctions{
beforeKeyEvent?(): void;
afterKeyEvent?():void;
}
//declare var jQuery: JQueryStatic;
export class BanglaLayout implements KeyEventFunctions {
keyboard: KeyboardHandler;
sourceField: string;
constructor(id:string, keyEvents?:KeyEventFunctions) {
this.sourceField = id;
this.keyboard = new KeyboardHandler();
if(typeof keyEvents === "object"){
this.beforeKeyEvent = typeof keyEvents.beforeKeyEvent === "function" ? keyEvents.beforeKeyEvent : this.beforeKeyEvent;
this.afterKeyEvent = typeof keyEvents.afterKeyEvent == "function" ? keyEvents.afterKeyEvent : this.afterKeyEvent;
}
this.setupKeyboardHooks();
// chainability
return this;
}
beforeKeyEvent(): void{};
afterKeyEvent(): void {};
setupKeyboardHooks(){
var inputbox = document.getElementById(this.sourceField);
if (inputbox === null) {
throw new Error("No textarea/text input was found with the provided ID.");
}
var hasHookedAlready:boolean = false;
var root = this;
var returnComputeFn = function(keyEvent:any){
var oEvent = keyEvent;
var oSource = oEvent.srcElement || oEvent.target;
root.beforeKeyEvent();
var returnValue = root.keyboard.handleKeyboardInput(oEvent, oSource);
root.afterKeyEvent();
return returnValue;
};
try {
inputbox.onkeydown = function(keyEvent) {
hasHookedAlready = returnComputeFn(keyEvent);
return hasHookedAlready;
};
inputbox.onkeyup = function (keyEvent) {
if (!!keyEvent)
keyEvent.preventDefault();
};
} catch (e) {
if (console)
console.log(e.message);
}
}
} |