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Added getOperatorList to api.js

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pramodhkp 2014-06-17 00:05:38 +05:30
parent 834c69aa0a
commit 1d00e9d13c
2 changed files with 62 additions and 2 deletions
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54
src/display/api.js
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@ -394,6 +394,15 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
* rendering call the function that is the first argument
* to the callback.
*/
/**
* PDF page operator list.
*
* @typedef {Object} PDFOperatorList
* @property {Array} fnArray - Array containing the operator functions.
* @property {Array} argsArray - Array containing the arguments of the
* functions.
*/
/**
* Proxy to a PDFPage in the worker thread.
@ -554,6 +563,45 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
return renderTask;
},
/**
* @return {Promise} A promise resolved with an {@link PDFOperatorList}
* object that represents page's operator list.
*/
getOperatorList: function PDFPageProxy_getOperatorList() {
function operatorListChanged() {
if (intentState.operatorList.lastChunk) {
intentState.opListReadCapability.resolve(intentState.operatorList);
}
}
var renderingIntent = 'oplist';
if (!this.intentStates[renderingIntent]) {
this.intentStates[renderingIntent] = {};
}
var intentState = this.intentStates[renderingIntent];
if (!intentState.opListReadCapability) {
var opListTask = {};
opListTask.operatorListChanged = operatorListChanged;
intentState.receivingOperatorList = true;
intentState.opListReadCapability = createPromiseCapability();
intentState.renderTasks = [];
intentState.renderTasks.push(opListTask);
intentState.operatorList = {
fnArray: [],
argsArray: [],
lastChunk: false
};
this.transport.messageHandler.send('RenderPageRequest', {
pageIndex: this.pageIndex,
intent: renderingIntent
});
}
return intentState.opListReadCapability.promise;
},
/**
* @return {Promise} That is resolved a {@link TextContent}
* object that represent the page text content.
@ -599,7 +647,11 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
_startRenderPage: function PDFPageProxy_startRenderPage(transparency,
intent) {
var intentState = this.intentStates[intent];
intentState.displayReadyCapability.resolve(transparency);
// TODO Refactor RenderPageRequest to separate rendering
// and operator list logic
if (intentState.displayReadyCapability) {
intentState.displayReadyCapability.resolve(transparency);
}
},
/**
* For internal use only.