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JS - Collect and execute actions at doc and pages level

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* the goal is to execute actions like Open or OpenAction
 * can be tested with issue6106.pdf (auto-print)
 * once #12701 is merged, we can add page actions
This commit is contained in:
Calixte Denizet 2020-12-07 19:22:14 +01:00
parent 142f131ee1
commit 1e2173f038
18 changed files with 829 additions and 125 deletions
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53
src/core/obj.js
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@ -19,6 +19,7 @@ import {
bytesToString,
createPromiseCapability,
createValidAbsoluteUrl,
DocumentActionEventType,
FormatError,
info,
InvalidPDFException,
@ -47,13 +48,14 @@ import {
RefSet,
RefSetCache,
} from "./primitives.js";
import { Lexer, Parser } from "./parser.js";
import {
collectActions,
MissingDataException,
toRomanNumerals,
XRefEntryException,
XRefParseException,
} from "./core_utils.js";
import { Lexer, Parser } from "./parser.js";
import { CipherTransformFactory } from "./crypto.js";
import { ColorSpace } from "./colorspace.js";
import { GlobalImageCache } from "./image_utils.js";
@ -873,11 +875,11 @@ class Catalog {
return shadow(this, "attachments", attachments);
}
get javaScript() {
_collectJavaScript() {
const obj = this._catDict.get("Names");
let javaScript = null;
function appendIfJavaScriptDict(jsDict) {
function appendIfJavaScriptDict(name, jsDict) {
const type = jsDict.get("S");
if (!isName(type, "JavaScript")) {
return;
@ -890,10 +892,10 @@ class Catalog {
return;
}
if (!javaScript) {
javaScript = [];
if (javaScript === null) {
javaScript = Object.create(null);
}
javaScript.push(stringToPDFString(js));
javaScript[name] = stringToPDFString(js);
}
if (obj && obj.has("JavaScript")) {
@ -904,7 +906,7 @@ class Catalog {
// defensive so we don't cause errors on document load.
const jsDict = names[name];
if (isDict(jsDict)) {
appendIfJavaScriptDict(jsDict);
appendIfJavaScriptDict(name, jsDict);
}
}
}
@ -912,10 +914,43 @@ class Catalog {
// Append OpenAction "JavaScript" actions to the JavaScript array.
const openAction = this._catDict.get("OpenAction");
if (isDict(openAction) && isName(openAction.get("S"), "JavaScript")) {
appendIfJavaScriptDict(openAction);
appendIfJavaScriptDict("OpenAction", openAction);
}
return shadow(this, "javaScript", javaScript);
return javaScript;
}
get javaScript() {
const javaScript = this._collectJavaScript();
return shadow(
this,
"javaScript",
javaScript ? Object.values(javaScript) : null
);
}
get jsActions() {
const js = this._collectJavaScript();
let actions = collectActions(
this.xref,
this._catDict,
DocumentActionEventType
);
if (!actions && js) {
actions = Object.create(null);
}
if (actions && js) {
for (const [key, val] of Object.entries(js)) {
if (key in actions) {
actions[key].push(val);
} else {
actions[key] = [val];
}
}
}
return shadow(this, "jsActions", actions);
}
fontFallback(id, handler) {