Sakurai/pdf.js
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Better errors capturing at the core and stop rendering on error.

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This commit is contained in:
Yury Delendik 2016-03-11 07:59:09 -06:00
parent 4784863ef7
commit 8ba413e761
2 changed files with 58 additions and 41 deletions
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80
src/core/evaluator.js
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@ -755,7 +755,16 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager);
var timeSlotManager = new TimeSlotManager();
return new Promise(function next(resolve, reject) {
return new Promise(function promiseBody(resolve, reject) {
var next = function (promise) {
promise.then(function () {
try {
promiseBody(resolve, reject);
} catch (ex) {
reject(ex);
}
}, reject);
};
task.ensureNotTerminated();
timeSlotManager.reset();
var stop, operation = {}, i, ii, cs;
@ -798,13 +807,13 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
if (type.name === 'Form') {
stateManager.save();
return self.buildFormXObject(resources, xobj, null,
next(self.buildFormXObject(resources, xobj, null,
operatorList, task,
stateManager.state.clone()).
then(function () {
stateManager.restore();
next(resolve, reject);
}, reject);
}));
return;
} else if (type.name === 'Image') {
self.buildPaintImageXObject(resources, xobj, false,
operatorList, name, imageCache);
@ -823,13 +832,13 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
case OPS.setFont:
var fontSize = args[1];
// eagerly collect all fonts
return self.handleSetFont(resources, args, null, operatorList,
next(self.handleSetFont(resources, args, null, operatorList,
task, stateManager.state).
then(function (loadedName) {
operatorList.addDependency(loadedName);
operatorList.addOp(OPS.setFont, [loadedName, fontSize]);
next(resolve, reject);
}, reject);
}));
return;
case OPS.endInlineImage:
var cacheKey = args[0].cacheKey;
if (cacheKey) {
@ -929,10 +938,9 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
case OPS.setFillColorN:
cs = stateManager.state.fillColorSpace;
if (cs.name === 'Pattern') {
return self.handleColorN(operatorList, OPS.setFillColorN,
args, cs, patterns, resources, task, xref).then(function() {
next(resolve, reject);
}, reject);
next(self.handleColorN(operatorList, OPS.setFillColorN, args,
cs, patterns, resources, task, xref));
return;
}
args = cs.getRgb(args, 0);
fn = OPS.setFillRGBColor;
@ -940,10 +948,9 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
case OPS.setStrokeColorN:
cs = stateManager.state.strokeColorSpace;
if (cs.name === 'Pattern') {
return self.handleColorN(operatorList, OPS.setStrokeColorN,
args, cs, patterns, resources, task, xref).then(function() {
next(resolve, reject);
}, reject);
next(self.handleColorN(operatorList, OPS.setStrokeColorN, args,
cs, patterns, resources, task, xref));
return;
}
args = cs.getRgb(args, 0);
fn = OPS.setStrokeRGBColor;
@ -975,10 +982,9 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
}
var gState = extGState.get(dictName.name);
return self.setGState(resources, gState, operatorList, task,
xref, stateManager).then(function() {
next(resolve, reject);
}, reject);
next(self.setGState(resources, gState, operatorList, task, xref,
stateManager));
return;
case OPS.moveTo:
case OPS.lineTo:
case OPS.curveTo:
@ -1023,9 +1029,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
operatorList.addOp(fn, args);
}
if (stop) {
deferred.then(function () {
next(resolve, reject);
}, reject);
next(deferred);
return;
}
// Some PDFs don't close all restores inside object/form.
@ -1301,7 +1305,16 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
var timeSlotManager = new TimeSlotManager();
return new Promise(function next(resolve, reject) {
return new Promise(function promiseBody(resolve, reject) {
var next = function (promise) {
promise.then(function () {
try {
promiseBody(resolve, reject);
} catch (ex) {
reject(ex);
}
}, reject);
};
task.ensureNotTerminated();
timeSlotManager.reset();
var stop, operation = {}, args = [];
@ -1323,9 +1336,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
case OPS.setFont:
flushTextContentItem();
textState.fontSize = args[1];
return handleSetFont(args[0].name).then(function() {
next(resolve, reject);
}, reject);
next(handleSetFont(args[0].name));
return;
case OPS.setTextRise:
flushTextContentItem();
textState.textRise = args[0];
@ -1496,7 +1508,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
stateManager.transform(matrix);
}
return self.getTextContent(xobj, task,
next(self.getTextContent(xobj, task,
xobj.dict.get('Resources') || resources, stateManager,
normalizeWhitespace).then(function (formTextContent) {
Util.appendToArray(textContent.items, formTextContent.items);
@ -1505,9 +1517,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
xobjsCache.key = name;
xobjsCache.texts = formTextContent;
next(resolve, reject);
}, reject);
}));
return;
case OPS.setGState:
flushTextContentItem();
var dictName = args[0];
@ -1527,17 +1538,14 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
}
if (gsStateFont) {
textState.fontSize = gsStateFont[1];
return handleSetFont(gsStateFont[0]).then(function() {
next(resolve, reject);
}, reject);
next(handleSetFont(gsStateFont[0]));
return;
}
break;
} // switch
} // while
if (stop) {
deferred.then(function () {
next(resolve, reject);
}, reject);
next(deferred);
return;
}
flushTextContentItem();

9
src/display/api.js
View File

@ -1716,11 +1716,20 @@ var WorkerTransport = (function WorkerTransportClosure() {
var page = this.pageCache[data.pageNum - 1];
var intentState = page.intentStates[data.intent];
if (intentState.displayReadyCapability) {
intentState.displayReadyCapability.reject(data.error);
} else {
error(data.error);
}
if (intentState.operatorList) {
// Mark operator list as complete.
intentState.operatorList.lastChunk = true;
for (var i = 0; i < intentState.renderTasks.length; i++) {
intentState.renderTasks[i].operatorListChanged();
}
}
}, this);
messageHandler.on('UnsupportedFeature',