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Text widget annotations: do not render on canvas as well

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If interactive forms are enabled, then the display layer takes care of
rendering the form elements. There is no need to draw them on the canvas
as well. This also leads to issues when values are prefilled, because
the text fields are transparent, so the contents that have been rendered
onto the canvas will be visible too.

We address this issue by passing the `renderInteractiveForms` parameter
to the render task and handling it when the page is rendered (i.e., when
the canvas is rendered).
This commit is contained in:
Tim van der Meij 2016-09-14 22:49:37 +02:00
parent adf0972ca5
commit dbea302a6e
5 changed files with 30 additions and 7 deletions
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8
src/display/api.js
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@ -656,6 +656,9 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
* calling of PDFPage.getViewport method.
* @property {string} intent - Rendering intent, can be 'display' or 'print'
* (default value is 'display').
* @property {boolean} renderInteractiveForms - (optional) Whether or not
* interactive form elements are rendered in the display
* layer. If so, we do not render them on canvas as well.
* @property {Array} transform - (optional) Additional transform, applied
* just before viewport transform.
* @property {Object} imageLayer - (optional) An object that has beginLayout,
@ -764,6 +767,8 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
this.pendingCleanup = false;
var renderingIntent = (params.intent === 'print' ? 'print' : 'display');
var renderInteractiveForms = (params.renderInteractiveForms === true ?
true : /* Default */ false);
if (!this.intentStates[renderingIntent]) {
this.intentStates[renderingIntent] = Object.create(null);
@ -784,7 +789,8 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
this.stats.time('Page Request');
this.transport.messageHandler.send('RenderPageRequest', {
pageIndex: this.pageNumber - 1,
intent: renderingIntent
intent: renderingIntent,
renderInteractiveForms: renderInteractiveForms,
});
}