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1 define([ "dojo/_base/declare", "implab/safe", "implab/guard", "ol3/_ToolBase", "ol3/ToolType" ],
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2
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3 function(declare, safe, guard, _ToolBase, ToolType) {
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4 return declare([ _ToolBase ], {
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5 _pending : null,
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6
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7 _lastResult : null,
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8
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9 toolType : ToolType.Oneshot,
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10
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11 invoke : function() {
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12 },
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13
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14 onActivating : function() {
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15 var me = this;
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16
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17 // start the operation
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18 me._lastResult = me._pending = guard(me,"invoke");
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19
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20 return this.inherited(arguments);
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21 },
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22
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23 onActivated : function() {
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24 var me = this;
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25
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26 // fire the activate event
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27 this.inherited(arguments);
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28
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29 me._pending.then(function() {
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30 if (me._pending) {
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31 me.log("Operation finished, deactivating.");
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32 me._pending = null;
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33 me.deactivate();
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34 }
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35 }, function(ex) {
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36 if (me._pending) {
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37 me.error("Operation failed, deactivating: {0}", ex);
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38 me._pending = null;
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39 me.deactivate();
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40 }
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41 });
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42 },
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43
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44 onDeactivated : function() {
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45 var d = this._pending;
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46 if (d) {
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47 this.log("Cancelling pending operation");
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48 this._pending = null;
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49 d.cancel();
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50 }
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51
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52 return this.inherited(arguments);
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53 },
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54
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55 run : function() {
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56 var me = this;
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57
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58 return me.activate().then(function(success) {
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59 if (success)
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60 return me._lastResult;
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61 throw new Error("Operation declined");
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62 });
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63 }
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64 });
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65 }); |
