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Convert RenderTask, in src/display/api.js, to an ES6 class

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Also deprecates the `then` method, in favour of the `promise` getter.
This commit is contained in:
Jonas Jenwald 2018-11-08 13:46:02 +01:00
parent ef8e5fd77c
commit 2c003a82d5
4 changed files with 63 additions and 79 deletions
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64
src/display/api.js
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@ -2280,11 +2280,10 @@ class PDFObjects {
/**
* Allows controlling of the rendering tasks.
* @class
* @alias RenderTask
*/
var RenderTask = (function RenderTaskClosure() {
function RenderTask(internalRenderTask) {
class RenderTask {
constructor(internalRenderTask) {
this._internalRenderTask = internalRenderTask;
/**
@ -2296,39 +2295,36 @@ var RenderTask = (function RenderTaskClosure() {
this.onContinue = null;
}
RenderTask.prototype = /** @lends RenderTask.prototype */ {
/**
* Promise for rendering task completion.
* @return {Promise}
*/
get promise() {
return this._internalRenderTask.capability.promise;
},
/**
* Promise for rendering task completion.
* @return {Promise}
*/
get promise() {
return this._internalRenderTask.capability.promise;
}
/**
* Cancels the rendering task. If the task is currently rendering it will
* not be cancelled until graphics pauses with a timeout. The promise that
* this object extends will be rejected when cancelled.
*/
cancel: function RenderTask_cancel() {
this._internalRenderTask.cancel();
},
/**
* Cancels the rendering task. If the task is currently rendering it will
* not be cancelled until graphics pauses with a timeout. The promise that
* this object extends will be rejected when cancelled.
*/
cancel() {
this._internalRenderTask.cancel();
}
/**
* Registers callbacks to indicate the rendering task completion.
*
* @param {function} onFulfilled The callback for the rendering completion.
* @param {function} onRejected The callback for the rendering failure.
* @return {Promise} A promise that is resolved after the onFulfilled or
* onRejected callback.
*/
then: function RenderTask_then(onFulfilled, onRejected) {
return this.promise.then.apply(this.promise, arguments);
},
};
return RenderTask;
})();
/**
* Registers callbacks to indicate the rendering task completion.
*
* @param {function} onFulfilled The callback for the rendering completion.
* @param {function} onRejected The callback for the rendering failure.
* @return {Promise} A promise that is resolved after the onFulfilled or
* onRejected callback.
*/
then(onFulfilled, onRejected) {
deprecated('RenderTask.then method, use the `promise` getter instead.');
return this.promise.then.apply(this.promise, arguments);
}
}
/**
* For internal use only.