gecko-dev/mobile/chrome/content/IndexedDB.js

79 lines
2.4 KiB
JavaScript

/**
* Helper class for IndexedDB, parent part. Listens to
* messages from the child and shows prompts for them.
*/
let IndexedDB = {
_permissionsPrompt: "indexedDB-permissions-prompt",
_permissionsResponse: "indexedDB-permissions-response",
_quotaPrompt: "indexedDB-quota-prompt",
_quotaResponse: "indexedDB-quota-response",
_quotaCancel: "indexedDB-quota-cancel",
_notificationIcon: "indexedDB-notification-icon",
receiveMessage: function(aMessage) {
switch (aMessage.name) {
case "IndexedDB:Prompt":
this.showPrompt(aMessage);
}
},
showPrompt: function(aMessage) {
let browser = aMessage.target;
let payload = aMessage.json;
let host = payload.host;
let topic = payload.topic;
let type;
if (topic == this._permissionsPrompt) {
type = "indexedDB";
payload.responseTopic = this._permissionsResponse;
} else if (topic == this._quotaPrompt) {
type = "indexedDBQuota";
payload.responseTopic = this._quotaResponse;
} else if (topic == this._quotaCancel) {
payload.permission = Ci.nsIPermissionManager.UNKNOWN_ACTION;
browser.messageManager.sendAsyncMessage("IndexedDB:Response", payload);
// XXX Need to actually save this?
return;
}
let prompt = Cc["@mozilla.org/content-permission/prompt;1"].createInstance(Ci.nsIContentPermissionPrompt);
// If the user waits a long time before responding, we default to UNKNOWN_ACTION.
let timeoutId = setTimeout(function() {
payload.permission = Ci.nsIPermissionManager.UNKNOWN_ACTION;
browser.messageManager.sendAsyncMessage("IndexedDB:Response", payload);
timeoutId = null;
}, 30000);
function checkTimeout() {
if (timeoutId === null) return true;
clearTimeout(timeoutId);
timeoutId = null;
return false;
}
prompt.prompt({
type: type,
uri: Services.io.newURI(payload.location, null, null),
window: null,
element: aMessage.target,
cancel: function() {
if (checkTimeout()) return;
payload.permission = Ci.nsIPermissionManager.DENY_ACTION;
browser.messageManager.sendAsyncMessage("IndexedDB:Response", payload);
},
allow: function() {
if (checkTimeout()) return;
payload.permission = Ci.nsIPermissionManager.ALLOW_ACTION;
browser.messageManager.sendAsyncMessage("IndexedDB:Response", payload);
},
});
},
};