yetangitu/pdf.js
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Replace getUserData()/setUserData() with CustomEvents

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This commit is contained in:
vyv03354 2013-02-06 07:29:36 +09:00
parent 0058d422be
commit 07491f584f
2 changed files with 23 additions and 27 deletions
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26
extensions/firefox/components/PdfStreamConverter.js
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@ -455,9 +455,9 @@ function RequestListener(actions) {
RequestListener.prototype.receive = function(event) {
var message = event.target;
var doc = message.ownerDocument;
var action = message.getUserData('action');
var data = message.getUserData('data');
var sync = message.getUserData('sync');
var action = event.detail.action;
var data = event.detail.data;
var sync = event.detail.sync;
var actions = this.actions;
if (!(action in actions)) {
log('Unknown action: ' + action);
@ -465,25 +465,27 @@ RequestListener.prototype.receive = function(event) {
}
if (sync) {
var response = actions[action].call(this.actions, data);
message.setUserData('response', response, null);
var detail = event.detail;
detail.__exposedProps__ = {response: 'r'};
detail.response = response;
} else {
var response;
if (!message.getUserData('callback')) {
if (!event.detail.callback) {
doc.documentElement.removeChild(message);
response = null;
} else {
response = function sendResponse(response) {
try {
message.setUserData('response', response, null);
var listener = doc.createEvent('CustomEvent');
listener.initCustomEvent('pdf.js.response', true, false,
{response: response,
__exposedProps__: {response: 'r'}});
return message.dispatchEvent(listener);
} catch (e) {
// message is no longer accessible because the sender is already
// gone. the unloaded sender cannot receive the response anyway.
// doc is no longer accessible because the requestor is already
// gone. unloaded content cannot receive the response anyway.
return false;
}
var listener = doc.createEvent('HTMLEvents');
listener.initEvent('pdf.js.response', true, false);
return message.dispatchEvent(listener);
};
}
actions[action].call(this.actions, data, response);