1 | // source/credits: "Algorithm": http://www.codingforums.com/showthread.php?s=&threadid=10531 |
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2 | // The constructor should be called with |
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3 | // the parent object (optional, defaults to window). |
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4 | |
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5 | function Timer(){ |
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6 | this.obj = (arguments.length)?arguments[0]:window; |
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7 | return this; |
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8 | } |
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9 | |
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10 | // The set functions should be called with: |
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11 | // - The name of the object method (as a string) (required) |
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12 | // - The millisecond delay (required) |
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13 | // - Any number of extra arguments, which will all be |
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14 | // passed to the method when it is evaluated. |
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15 | |
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16 | Timer.prototype.setInterval = function(func, msec){ |
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17 | var i = Timer.getNew(); |
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18 | var t = Timer.buildCall(this.obj, i, arguments); |
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19 | Timer.set[i].timer = window.setInterval(t,msec); |
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20 | return i; |
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21 | } |
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22 | Timer.prototype.setTimeout = function(func, msec){ |
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23 | var i = Timer.getNew(); |
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24 | Timer.buildCall(this.obj, i, arguments); |
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25 | Timer.set[i].timer = window.setTimeout("Timer.callOnce("+i+");",msec); |
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26 | return i; |
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27 | } |
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28 | |
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29 | // The clear functions should be called with |
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30 | // the return value from the equivalent set function. |
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31 | |
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32 | Timer.prototype.clearInterval = function(i){ |
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33 | if(!Timer.set[i]) return; |
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34 | window.clearInterval(Timer.set[i].timer); |
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35 | Timer.set[i] = null; |
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36 | } |
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37 | Timer.prototype.clearTimeout = function(i){ |
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38 | if(!Timer.set[i]) return; |
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39 | window.clearTimeout(Timer.set[i].timer); |
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40 | Timer.set[i] = null; |
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41 | } |
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42 | |
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43 | // Private data |
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44 | |
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45 | Timer.set = new Array(); |
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46 | Timer.buildCall = function(obj, i, args){ |
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47 | var t = ""; |
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48 | Timer.set[i] = new Array(); |
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49 | if(obj != window){ |
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50 | Timer.set[i].obj = obj; |
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51 | t = "Timer.set["+i+"].obj."; |
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52 | } |
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53 | t += args[0]+"("; |
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54 | if(args.length > 2){ |
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55 | Timer.set[i][0] = args[2]; |
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56 | t += "Timer.set["+i+"][0]"; |
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57 | for(var j=1; (j+2)<args.length; j++){ |
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58 | Timer.set[i][j] = args[j+2]; |
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59 | t += ", Timer.set["+i+"]["+j+"]"; |
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60 | }} |
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61 | t += ");"; |
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62 | Timer.set[i].call = t; |
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63 | return t; |
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64 | } |
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65 | Timer.callOnce = function(i){ |
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66 | if(!Timer.set[i]) return; |
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67 | eval(Timer.set[i].call); |
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68 | Timer.set[i] = null; |
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69 | } |
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70 | Timer.getNew = function(){ |
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71 | var i = 0; |
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72 | while(Timer.set[i]) i++; |
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73 | return i; |
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74 | } |
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