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Merge "Adopt HTML/CSS color values in fromHtml()" into nyc-dev

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This commit is contained in:
Daniel U
2016-02-12 11:24:55 +00:00
committed by Android (Google) Code Review
parent 239f248280 1eab97ac8e
commit 43bb0a0643
1 changed files with 62 additions and 57 deletions
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119
core/java/android/text/Html.java
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@@ -54,6 +54,9 @@ import android.text.style.UnderlineSpan;
import java.io.IOException;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
@@ -691,6 +694,22 @@ class HtmlToSpannedConverter implements ContentHandler {
private static Pattern sBackgroundColorPattern;
private static Pattern sTextDecorationPattern;
/**
* Name-value mapping of HTML/CSS colors which have different values in {@link Color}.
*/
private static final Map<String, Integer> sColorMap;
static {
sColorMap = new HashMap<>();
sColorMap.put("darkgray", 0xFFA9A9A9);
sColorMap.put("gray", 0xFF808080);
sColorMap.put("lightgray", 0xFFD3D3D3);
sColorMap.put("darkgrey", 0xFFA9A9A9);
sColorMap.put("grey", 0xFF808080);
sColorMap.put("lightgrey", 0xFFD3D3D3);
sColorMap.put("green", 0xFF008000);
}
private static Pattern getTextAlignPattern() {
if (sTextAlignPattern == null) {
sTextAlignPattern = Pattern.compile("(?:\\s+|\\A)text-align\\s*:\\s*(\\S*)\\b");
@@ -948,7 +967,7 @@ class HtmlToSpannedConverter implements ContentHandler {
final int len = text.length();
if (margin > 0) {
appendNewlines(text, margin);
text.setSpan(new Newline(margin), len, len, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
start(text, new Newline(margin));
}
String style = attributes.getValue("", "style");
@@ -957,14 +976,11 @@ class HtmlToSpannedConverter implements ContentHandler {
if (m.find()) {
String alignment = m.group(1);
if (alignment.equalsIgnoreCase("start")) {
text.setSpan(new Alignment(Layout.Alignment.ALIGN_NORMAL),
len, len, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
start(text, new Alignment(Layout.Alignment.ALIGN_NORMAL));
} else if (alignment.equalsIgnoreCase("center")) {
text.setSpan(new Alignment(Layout.Alignment.ALIGN_CENTER),
len, len, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
start(text, new Alignment(Layout.Alignment.ALIGN_CENTER));
} else if (alignment.equalsIgnoreCase("end")) {
text.setSpan(new Alignment(Layout.Alignment.ALIGN_OPPOSITE),
len, len, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
start(text, new Alignment(Layout.Alignment.ALIGN_OPPOSITE));
}
}
}
@@ -1053,7 +1069,7 @@ class HtmlToSpannedConverter implements ContentHandler {
private static void start(Editable text, Object mark) {
int len = text.length();
text.setSpan(mark, len, len, Spannable.SPAN_MARK_MARK);
text.setSpan(mark, len, len, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
}
private static void end(Editable text, Class kind, Object repl) {
@@ -1064,25 +1080,22 @@ class HtmlToSpannedConverter implements ContentHandler {
}
}
private static void startCssStyle(Editable text, Attributes attributes) {
private void startCssStyle(Editable text, Attributes attributes) {
String style = attributes.getValue("", "style");
if (style != null) {
final int len = text.length();
Matcher m = getForegroundColorPattern().matcher(style);
if (m.find()) {
int c = Color.getHtmlColor(m.group(1));
int c = getHtmlColor(m.group(1));
if (c != -1) {
text.setSpan(new Foreground(c | 0xFF000000), len, len,
Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
start(text, new Foreground(c | 0xFF000000));
}
}
m = getBackgroundColorPattern().matcher(style);
if (m.find()) {
int c = Color.getHtmlColor(m.group(1));
int c = getHtmlColor(m.group(1));
if (c != -1) {
text.setSpan(new Background(c | 0xFF000000), len, len,
Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
start(text, new Background(c | 0xFF000000));
}
}
@@ -1090,7 +1103,7 @@ class HtmlToSpannedConverter implements ContentHandler {
if (m.find()) {
String textDecoration = m.group(1);
if (textDecoration.equalsIgnoreCase("line-through")) {
text.setSpan(new Strikethrough(), len, len, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
start(text, new Strikethrough());
}
}
}
@@ -1134,58 +1147,41 @@ class HtmlToSpannedConverter implements ContentHandler {
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
private static void startFont(Editable text, Attributes attributes) {
private void startFont(Editable text, Attributes attributes) {
String color = attributes.getValue("", "color");
String face = attributes.getValue("", "face");
int len = text.length();
text.setSpan(new Font(color, face), len, len, Spannable.SPAN_MARK_MARK);
if (!TextUtils.isEmpty(color)) {
int c = getHtmlColor(color);
if (c != -1) {
start(text, new Foreground(c | 0xFF000000));
}
}
if (!TextUtils.isEmpty(face)) {
start(text, new Font(face));
}
}
private static void endFont(Editable text) {
int len = text.length();
Font f = getLast(text, Font.class);
int where = text.getSpanStart(f);
text.removeSpan(f);
Font font = getLast(text, Font.class);
if (font != null) {
setSpanFromMark(text, font, new TypefaceSpan(font.mFace));
}
if (where != len) {
if (!TextUtils.isEmpty(f.mColor)) {
if (f.mColor.startsWith("@")) {
Resources res = Resources.getSystem();
String name = f.mColor.substring(1);
int colorRes = res.getIdentifier(name, "color", "android");
if (colorRes != 0) {
ColorStateList colors = res.getColorStateList(colorRes, null);
text.setSpan(new TextAppearanceSpan(null, 0, 0, colors, null),
where, len,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
} else {
int c = Color.getHtmlColor(f.mColor);
if (c != -1) {
text.setSpan(new ForegroundColorSpan(c | 0xFF000000),
where, len,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
}
if (f.mFace != null) {
text.setSpan(new TypefaceSpan(f.mFace), where, len,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
Foreground foreground = getLast(text, Foreground.class);
if (foreground != null) {
setSpanFromMark(text, foreground,
new ForegroundColorSpan(foreground.mForegroundColor));
}
}
private static void startA(Editable text, Attributes attributes) {
String href = attributes.getValue("", "href");
int len = text.length();
text.setSpan(new Href(href), len, len, Spannable.SPAN_MARK_MARK);
start(text, new Href(href));
}
private static void endA(Editable text) {
int len = text.length();
Href h = getLast(text, Href.class);
if (h != null) {
if (h.mHref != null) {
@@ -1194,6 +1190,17 @@ class HtmlToSpannedConverter implements ContentHandler {
}
}
private int getHtmlColor(String color) {
if ((mFlags & Html.FROM_HTML_OPTION_USE_CSS_COLORS)
== Html.FROM_HTML_OPTION_USE_CSS_COLORS) {
Integer i = sColorMap.get(color.toLowerCase(Locale.US));
if (i != null) {
return i;
}
}
return Color.getHtmlColor(color);
}
public void setDocumentLocator(Locator locator) {
}
@@ -1278,11 +1285,9 @@ class HtmlToSpannedConverter implements ContentHandler {
private static class Bullet { }
private static class Font {
public String mColor;
public String mFace;
public Font(String color, String face) {
mColor = color;
public Font(String face) {
mFace = face;
}
}