Controls doesn't work when loading two different pdfs

[korteee]

I got two controllers in two different html files each of one changes $scope.pdfUrl.
When I load them for first time I got the wanted result (both of them load the correct pdf). But when I have once loaded both of them when I go back to the firstly loaded and try to use its controls I got the following error:

Error: this.messageHandler is null
WorkerTransport_getPage@http://localhost:8100/lib/pdfjs-dist/build/pdf.js:9970:11
PDFDocumentProxy_getPage@http://localhost:8100/lib/pdfjs-dist/build/pdf.js:8883:14
.link/scope.renderPage@http://localhost:8100/lib/angular-pdf/dist/angular-pdf.js:67:11
.link/<@http://localhost:8100/lib/angular-pdf/dist/angular-pdf.js:195:13
$RootScopeProvider/this.$get</Scope.prototype.$digest@http://localhost:8100/lib/ionic/js/ionic.bundle.js:30239:23
$RootScopeProvider/this.$get</Scope.prototype.$apply@http://localhost:8100/lib/ionic/js/ionic.bundle.js:30503:13
@http://localhost:8100/lib/ionic/js/ionic.bundle.js:65426:7
defaultHandlerWrapper@http://localhost:8100/lib/ionic/js/ionic.bundle.js:16787:3
createEventHandler/eventHandler@http://localhost:8100/lib/ionic/js/ionic.bundle.js:16775:9
triggerMouseEvent@http://localhost:8100/lib/ionic/js/ionic.bundle.js:2953:3
tapClick@http://localhost:8100/lib/ionic/js/ionic.bundle.js:2942:3
tapMouseUp@http://localhost:8100/lib/ionic/js/ionic.bundle.js:3018:5

[simobasso]

Hi @korteee. Can you elaborate this one? Can you show your code or replicate on jsfiddle?

[dennybiasiolli]

Hi @korteee, do you have an example on jsfiddle for us?

[rhyskoedijk]

I experienced this issue myself, mine was caused because both my directives (and the <canvas> within them) shared the same IDs, which causes all the control buttons to apply to every PDF viewer on the page. With the current directive you need to specify the canvasId, which is hard to make unique in angular due to the directives reliance on the link() function to bootstrap the PDF.

In the end, I made a change so that the directive works using class names rather than element ids, it solved my issue and removed the need for element ids all together. I plan on submitting a PR for this once the new version is out.

Not sure if your problem is exactly the same as mine, but it might help.

[simobasso]

@rhyskoedijk #184 is merged! feel free to submit your PR