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Letter spacing CSS support added

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This commit is contained in:
Vladimir Enchev
2016-03-28 14:03:48 +03:00
parent 344aac9c41
commit 1c759649df
10 changed files with 158 additions and 12 deletions
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29
utils/utils.ios.ts
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@ -1,4 +1,5 @@
import dts = require("utils/utils");
import types = require("utils/types");
import common = require("./utils-common");
import {Color} from "color";
import enums = require("ui/enums");
@ -49,7 +50,9 @@ export module ios {
}
}
export function setTextDecorationAndTransform(v: any, decoration: string, transform: string) {
export function setTextDecorationAndTransform(v: any, decoration: string, transform: string, letterSpacing: number) {
let hasLetterSpacing = types.isNumber(letterSpacing) && !isNaN(letterSpacing);
if (v.formattedText) {
if (v.style.textDecoration.indexOf(enums.TextDecoration.none) === -1) {
@ -69,6 +72,22 @@ export module ios {
let span = v.formattedText.spans.getItem(i);
span.text = getTransformedText(v, span.text, transform);
}
if (hasLetterSpacing) {
let attrText;
if(v._nativeView instanceof UIButton){
attrText = (<UIButton>v._nativeView).attributedTitleForState(UIControlState.UIControlStateNormal);
} else {
attrText = v._nativeView.attributedText;
}
attrText.addAttributeValueRange(NSKernAttributeName, letterSpacing, { location: 0, length: v._nativeView.attributedText.length });
if(v._nativeView instanceof UIButton){
(<UIButton>v._nativeView).setAttributedTitleForState(attrText, UIControlState.UIControlStateNormal);
}
}
} else {
let source = v.text;
let attributes = new Array();
@ -76,7 +95,7 @@ export module ios {
var decorationValues = (decoration + "").split(" ");
if (decorationValues.indexOf(enums.TextDecoration.none) === -1) {
if (decorationValues.indexOf(enums.TextDecoration.none) === -1 || hasLetterSpacing) {
let dict = new Map<string, number>();
if (decorationValues.indexOf(enums.TextDecoration.underline) !== -1) {
@ -87,6 +106,10 @@ export module ios {
dict.set(NSStrikethroughStyleAttributeName, NSUnderlineStyle.NSUnderlineStyleSingle);
}
if (hasLetterSpacing) {
dict.set(NSKernAttributeName, letterSpacing);
}
attributes.push({ attrs: dict, range: NSValue.valueWithRange(range) });
}
@ -238,7 +261,7 @@ export function openUrl(location: string): boolean {
class UIDocumentInteractionControllerDelegateImpl extends NSObject implements UIDocumentInteractionControllerDelegate {
public static ObjCProtocols = [UIDocumentInteractionControllerDelegate];
public getViewController() : UIViewController {
public getViewController(): UIViewController {
var frame = require("ui/frame");
return frame.topmost().currentPage.ios;
}