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Only trigger warning bar on certain unsupported features.

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This commit is contained in:
Brendan Dahl 2014-01-03 09:34:13 -08:00
parent 1bada35388
commit 2228343f77
11 changed files with 70 additions and 74 deletions
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62
src/shared/util.js
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@ -156,21 +156,19 @@ var log = (function() {
}
})();
// A notice for devs that will not trigger the fallback UI. These are good
// for things that are helpful to devs, such as warning that Workers were
// disabled, which is important to devs but not end users.
// A notice for devs. These are good for things that are helpful to devs, such
// as warning that Workers were disabled, which is important to devs but not
// end users.
function info(msg) {
if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.infos) {
log('Info: ' + msg);
PDFJS.LogManager.notify('info', msg);
}
}
// Non-fatal warnings that should trigger the fallback UI.
// Non-fatal warnings.
function warn(msg) {
if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.warnings) {
log('Warning: ' + msg);
PDFJS.LogManager.notify('warn', msg);
}
}
@ -188,15 +186,10 @@ function error(msg) {
log('Error: ' + msg);
}
log(backtrace());
PDFJS.LogManager.notify('error', msg);
UnsupportedManager.notify(UNSUPPORTED_FEATURES.unknown);
throw new Error(msg);
}
// Missing features that should trigger the fallback UI.
function TODO(what) {
warn('TODO: ' + what);
}
function backtrace() {
try {
throw new Error();
@ -210,6 +203,31 @@ function assert(cond, msg) {
error(msg);
}
var UNSUPPORTED_FEATURES = PDFJS.UNSUPPORTED_FEATURES = {
unknown: 'unknown',
forms: 'forms',
javaScript: 'javaScript',
smask: 'smask',
shadingPattern: 'shadingPattern',
font: 'font'
};
var UnsupportedManager = PDFJS.UnsupportedManager =
(function UnsupportedManagerClosure() {
var listeners = [];
return {
listen: function (cb) {
listeners.push(cb);
},
notify: function (featureId) {
warn('Unsupported feature "' + featureId + '"');
for (var i = 0, ii = listeners.length; i < ii; i++) {
listeners[i](featureId);
}
}
};
})();
// Combines two URLs. The baseUrl shall be absolute URL. If the url is an
// absolute URL, it will be returned as is.
function combineUrl(baseUrl, url) {
@ -263,22 +281,6 @@ function assertWellFormed(cond, msg) {
error(msg);
}
var LogManager = PDFJS.LogManager = (function LogManagerClosure() {
var loggers = [];
return {
addLogger: function logManager_addLogger(logger) {
loggers.push(logger);
},
notify: function(type, message) {
for (var i = 0, ii = loggers.length; i < ii; i++) {
var logger = loggers[i];
if (logger[type])
logger[type](message);
}
}
};
})();
function shadow(obj, prop, value) {
Object.defineProperty(obj, prop, { value: value,
enumerable: true,
@ -1152,8 +1154,8 @@ function MessageHandler(name, comObj) {
log.apply(null, data);
}];
}
ah['_warn'] = [function ah_Warn(data) {
warn(data);
ah['_unsupported_feature'] = [function ah_unsupportedFeature(data) {
UnsupportedManager.notify(data);
}];
comObj.onmessage = function messageHandlerComObjOnMessage(event) {