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Button widget annotations: implement checkboxes and radio buttons

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benweet 2016-11-04 12:01:42 +00:00 • committed by Tim van der Meij
parent d0893b0c48
commit ba012c7a68
4 changed files with 305 additions and 0 deletions
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55
src/core/annotation.js
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@ -106,6 +106,8 @@ AnnotationFactory.prototype = /** @lends AnnotationFactory.prototype */ {
switch (fieldType) {
case 'Tx':
return new TextWidgetAnnotation(parameters);
case 'Btn':
return new ButtonWidgetAnnotation(parameters);
case 'Ch':
return new ChoiceWidgetAnnotation(parameters);
}
@ -767,6 +769,59 @@ var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
return TextWidgetAnnotation;
})();
var ButtonWidgetAnnotation = (function ButtonWidgetAnnotationClosure() {
function ButtonWidgetAnnotation(params) {
WidgetAnnotation.call(this, params);
this.data.pushbutton = this.hasFieldFlag(AnnotationFieldFlag.PUSHBUTTON);
this.data.radio = !this.data.pushbutton &&
this.hasFieldFlag(AnnotationFieldFlag.RADIO);
if (isName(this.data.fieldValue)) {
this.data.fieldValue = this.data.fieldValue.name;
}
// Get the value of the radio button
if (this.data.radio) {
// Generate a unique ID in case no value is found
this.data.buttonValue = Math.random().toString(16).slice(2);
var appearanceState = params.dict.get('AP');
if (isDict(appearanceState)) {
var appearances = appearanceState.get('N');
if (isDict(appearances) && appearances.has('Off')) {
var keys = appearances.getKeys();
for (var i = 0, ii = keys.length; i < ii; i++) {
if (keys[i] !== 'Off') {
this.data.buttonValue = keys[i];
break;
}
}
}
}
}
}
Util.inherit(ButtonWidgetAnnotation, WidgetAnnotation, {
getOperatorList:
function ButtonWidgetAnnotation_getOperatorList(evaluator, task,
renderForms) {
var operatorList = new OperatorList();
// Do not render form elements on the canvas when interactive forms are
// enabled. The display layer is responsible for rendering them instead.
if (renderForms) {
return Promise.resolve(operatorList);
}
if (this.appearance) {
return Annotation.prototype.getOperatorList.call(this, evaluator, task,
renderForms);
}
return Promise.resolve(operatorList);
}
});
return ButtonWidgetAnnotation;
})();
var ChoiceWidgetAnnotation = (function ChoiceWidgetAnnotationClosure() {
function ChoiceWidgetAnnotation(params) {
WidgetAnnotation.call(this, params);