yetangitu/pdf.js
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Initial API implementation

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This commit is contained in:
Yury Delendik 2012-04-09 22:20:57 -07:00
parent d8235925ac
commit 737ed84174
4 changed files with 281 additions and 98 deletions
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17
src/util.js
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@ -275,7 +275,7 @@ function isPDFFunction(v) {
* can be set. If any of these happens twice or the data is required before
* it was set, an exception is throw.
*/
var Promise = (function PromiseClosure() {
var Promise = PDFJS.Promise = (function PromiseClosure() {
var EMPTY_PROMISE = {};
/**
@ -297,6 +297,7 @@ var Promise = (function PromiseClosure() {
}
this.callbacks = [];
this.errbacks = [];
this.progressbacks = [];
};
/**
* Builds a promise that is resolved when all the passed in promises are
@ -312,7 +313,7 @@ var Promise = (function PromiseClosure() {
deferred.resolve(results);
return deferred;
}
for (var i = 0; i < unresolved; ++i) {
for (var i = 0, ii = promises.length; i < ii; ++i) {
var promise = promises[i];
promise.then((function(i) {
return function(value) {
@ -376,6 +377,13 @@ var Promise = (function PromiseClosure() {
}
},
progress: function Promise_progress(data) {
var callbacks = this.progressbacks;
for (var i = 0, ii = callbacks.length; i < ii; i++) {
callbacks[i].call(null, data);
}
},
reject: function Promise_reject(reason) {
if (this.isRejected) {
error('A Promise can be rejected only once ' + this.name);
@ -393,7 +401,7 @@ var Promise = (function PromiseClosure() {
}
},
then: function Promise_then(callback, errback) {
then: function Promise_then(callback, errback, progressback) {
if (!callback) {
error('Requiring callback' + this.name);
}
@ -410,6 +418,9 @@ var Promise = (function PromiseClosure() {
if (errback)
this.errbacks.push(errback);
}
if (progressback)
this.progressbacks.push(progressback);
}
};