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Merge pull request #1042 from NativeScript/special-props-binding

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binding to special properties fixed
This commit is contained in:
Vladimir Enchev
2015-11-05 17:12:52 +02:00
parent ae64b90df2 363a44139f
commit 5dd4ea5dfd
2 changed files with 23 additions and 6 deletions
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11
apps/tests/xml-declaration/xml-declaration-tests.ts
View File

@ -455,6 +455,17 @@ export function test_parse_ShouldParseSubProperties() {
TKUnit.assert(sw.visibility === "collapsed", "Expected result: collapsed; Actual result: " + sw.visibility + "; type: " + typeof (sw.visibility));
};
export function test_parse_ShouldParseBindingToSpecialProperty() {
var classProp = "MyClass";
var p = <Page>builder.parse("<Page><Label class='{{ myProp }}' /></Page>");
var obj = new observable.Observable();
obj.set("myProp", classProp);
p.bindingContext = obj;
TKUnit.assertEqual(p.content.className, classProp);
TKUnit.assertEqual(p.content._cssClasses.length, 1);
};
export function test_parse_ShouldParseBindingsWithCommaInsideSingleQuote() {
var expected = "Hi,test"
var bindingString = "{{ 'Hi,' + myProp }}";

6
ui/core/bindable.ts
View File

@ -7,6 +7,7 @@ import trace = require("trace");
import polymerExpressions = require("js-libs/polymer-expressions");
import bindingBuilder = require("../builder/binding-builder");
import viewModule = require("ui/core/view");
import {getSpecialPropertySetter} from "ui/builder/special-properties";
//late import
var _appModule = null;
@ -590,6 +591,10 @@ export class Binding {
// calling off method with null as handler will remove all handlers for options.property event
optionsInstance.off(options.property, null, optionsInstance.bindingContext);
optionsInstance.on(options.property, value, optionsInstance.bindingContext);
} else {
let specialSetter = getSpecialPropertySetter(options.property);
if (specialSetter) {
specialSetter(optionsInstance, value);
} else {
if (optionsInstance instanceof observable.Observable) {
optionsInstance.set(options.property, value);
@ -598,6 +603,7 @@ export class Binding {
}
}
}
}
catch (ex) {
trace.write("Binding error while setting property " + options.property + " of " + optionsInstance + ": " + ex,
trace.categories.Binding,