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Don't directly access the private map in setGState, and ensure that we avoid indirect objects

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*This patch is based on something I noticed while debugging some of the PDF files in issue 6931.*

In a number of the cases in `setGState`, we're implicitly assuming that we're not dealing with indirect objects (i.e. `Ref`s). See e.g. the 'Font' case, or the various cases where we simply do `gStateObj.push([key, value]);` (since the code in `canvas.js` won't be able to deal with a `Ref` for those cases).

The reason that I didn't use `Dict_forEach` instead, is that it would re-introduce the unncessary closures that PR 5205 removed.
This commit is contained in:
Jonas Jenwald 2016-02-03 16:53:18 +01:00
parent 2d4a1aa0af
commit a1fe2cb443
1 changed files with 7 additions and 7 deletions
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14
src/core/evaluator.js
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@ -468,11 +468,12 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
xref, stateManager) {
// This array holds the converted/processed state data.
var gStateObj = [];
var gStateMap = gState.map;
var gStateKeys = gState.getKeys();
var self = this;
var promise = Promise.resolve();
for (var key in gStateMap) {
var value = gStateMap[key];
for (var i = 0, ii = gStateKeys.length; i < ii; i++) {
var key = gStateKeys[i];
var value = gState.get(key);
switch (key) {
case 'Type':
break;
@ -505,12 +506,11 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
gStateObj.push([key, false]);
break;
}
var dict = xref.fetchIfRef(value);
if (isDict(dict)) {
promise = promise.then(function () {
if (isDict(value)) {
promise = promise.then(function (dict) {
return self.handleSMask(dict, resources, operatorList,
task, stateManager);
});
}.bind(this, value));
gStateObj.push([key, true]);
} else {
warn('Unsupported SMask type');