1 | /* |
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2 | * FCKeditor - The text editor for Internet - http://www.fckeditor.net |
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3 | * Copyright (C) 2003-2009 Frederico Caldeira Knabben |
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4 | * |
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5 | * == BEGIN LICENSE == |
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6 | * |
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7 | * Licensed under the terms of any of the following licenses at your |
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8 | * choice: |
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9 | * |
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10 | * - GNU General Public License Version 2 or later (the "GPL") |
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11 | * http://www.gnu.org/licenses/gpl.html |
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12 | * |
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13 | * - GNU Lesser General Public License Version 2.1 or later (the "LGPL") |
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14 | * http://www.gnu.org/licenses/lgpl.html |
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15 | * |
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16 | * - Mozilla Public License Version 1.1 or later (the "MPL") |
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17 | * http://www.mozilla.org/MPL/MPL-1.1.html |
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18 | * |
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19 | * == END LICENSE == |
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20 | * |
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21 | * FCKEvents Class: used to handle events is a advanced way. |
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22 | */ |
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23 | |
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24 | var FCKEvents = function( eventsOwner ) |
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25 | { |
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26 | this.Owner = eventsOwner ; |
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27 | this._RegisteredEvents = new Object() ; |
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28 | } |
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29 | |
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30 | FCKEvents.prototype.AttachEvent = function( eventName, functionPointer ) |
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31 | { |
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32 | var aTargets ; |
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33 | |
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34 | if ( !( aTargets = this._RegisteredEvents[ eventName ] ) ) |
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35 | this._RegisteredEvents[ eventName ] = [ functionPointer ] ; |
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36 | else |
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37 | { |
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38 | // Check that the event handler isn't already registered with the same listener |
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39 | // It doesn't detect function pointers belonging to an object (at least in Gecko) |
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40 | if ( aTargets.IndexOf( functionPointer ) == -1 ) |
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41 | aTargets.push( functionPointer ) ; |
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42 | } |
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43 | } |
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44 | |
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45 | FCKEvents.prototype.FireEvent = function( eventName, params ) |
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46 | { |
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47 | var bReturnValue = true ; |
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48 | |
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49 | var oCalls = this._RegisteredEvents[ eventName ] ; |
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50 | |
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51 | if ( oCalls ) |
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52 | { |
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53 | for ( var i = 0 ; i < oCalls.length ; i++ ) |
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54 | { |
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55 | try |
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56 | { |
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57 | bReturnValue = ( oCalls[ i ]( this.Owner, params ) && bReturnValue ) ; |
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58 | } |
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59 | catch(e) |
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60 | { |
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61 | // Ignore the following error. It may happen if pointing to a |
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62 | // script not anymore available (#934): |
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63 | // -2146823277 = Can't execute code from a freed script |
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64 | if ( e.number != -2146823277 ) |
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65 | throw e ; |
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66 | } |
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67 | } |
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68 | } |
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69 | |
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70 | return bReturnValue ; |
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71 | } |
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