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Firefox: implement content scripts

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This commit is contained in:
Deathamns 2014-11-24 20:47:32 +01:00
parent 67f18d023c
commit 98e5645ab5
1 changed files with 69 additions and 2 deletions
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71
platform/firefox/frameScript.js
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@ -5,8 +5,8 @@
'use strict';
var
app_name = 'ublock',
app_baseURI = 'chrome://' + app_name + '/content/js/',
appName = 'ublock',
contentBaseURI = 'chrome://' + appName + '/content/js/',
listeners = {},
_addMessageListener = function(id, fn) {
_removeMessageListener(id);
@ -29,4 +29,71 @@ addMessageListener('µBlock:broadcast', function(msg) {
}
});
var observer = {
unload: function(e) {
Services.obs.removeObserver(observer, 'content-document-global-created');
observer = listeners = null;
},
onDOMReady: function(e) {
var win = e.target.defaultView;
if (win.location.protocol === 'chrome:' && win.location.host === appName) {
win.sendAsyncMessage = sendAsyncMessage;
win.addMessageListener = _addMessageListener;
win.removeMessageListener = _removeMessageListener;
}
},
observe: function(win) {
if (!win || win.top !== content) {
return;
}
// baseURI is more reliable
var location = Services.io.newURI(
win.location.protocol === 'data:' ? 'data:text/plain,' : win.document.baseURI,
null,
null
);
if (!(win.document instanceof win.HTMLDocument
&& (/^https?$/.test(location.scheme)))) {
return;
}
win = Components.utils.Sandbox([win], {
sandboxPrototype: win,
wantComponents: false,
wantXHRConstructor: false
});
win.sendAsyncMessage = sendAsyncMessage;
win.addMessageListener = _addMessageListener;
win.removeMessageListener = _removeMessageListener;
var lss = Services.scriptloader.loadSubScript;
lss(contentBaseURI + 'vapi-client.js', win);
lss(contentBaseURI + 'contentscript-start.js', win);
if (win.document.readyState === 'loading') {
let docReady = function(e) {
this.removeEventListener(e.type, docReady, true);
lss(contentBaseURI + 'contentscript-end.js', win);
};
win.document.addEventListener('DOMContentLoaded', docReady, true);
}
else {
lss(contentBaseURI + 'contentscript-end.js', win);
}
}
};
Services.obs.addObserver(observer, 'content-document-global-created', false);
addEventListener('unload', observer.unload, false);
// for the Options page
addEventListener('DOMContentLoaded', observer.onDOMReady, true);
})();