Java tutorial
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We also recommend that a * file or class name and description of purpose be included on the * same "printed page" as the copyright notice for easier * identification within third-party archives. * * Copyright 2016 Alibaba Group * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.taobao.weex.dom; import android.graphics.Typeface; import android.support.annotation.NonNull; import android.support.v4.util.ArrayMap; import android.text.Layout; import android.text.TextUtils; import com.taobao.weex.common.Constants; import com.taobao.weex.dom.flex.CSSAlign; import com.taobao.weex.dom.flex.CSSFlexDirection; import com.taobao.weex.dom.flex.CSSJustify; import com.taobao.weex.dom.flex.CSSPositionType; import com.taobao.weex.dom.flex.CSSWrap; import com.taobao.weex.ui.component.WXText; import com.taobao.weex.ui.component.WXTextDecoration; import com.taobao.weex.utils.WXUtils; import com.taobao.weex.utils.WXViewUtils; import java.util.Collection; import java.util.Iterator; import java.util.Map; import java.util.Set; /** * Store value of component style * */ public class WXStyle implements Map<String, Object>, Cloneable { private static final long serialVersionUID = 611132641365274134L; public static final int UNSET = -1; private @NonNull final Map<String, Object> map; private Map<String, Map<String, Object>> mPesudoStyleMap = new ArrayMap<>();// clz_group:{styleMap} private Map<String, Object> mPesudoResetStyleMap = new ArrayMap<>(); public WXStyle() { map = new ArrayMap<>(); } public int getBlur() { try { if (get(Constants.Name.FILTER) == null) { return 0; } String value = get(Constants.Name.FILTER).toString().trim(); int start = value.indexOf("blur("); int end = value.indexOf("px)"); if (end == -1) { end = value.indexOf(")"); } if (start == 0 && start < end) { int blur = Integer.parseInt(value.substring(5, end)); //unlike css blur filter(https://developer.mozilla.org/en-US/docs/Web/CSS/filter),in weex //we specify the blur radius in [0,10] to improve performance and avoid potential oom issue. return Math.min(10, Math.max(0, blur)); } } catch (NumberFormatException e) { } return 0; } /* * text-decoration **/ public static WXTextDecoration getTextDecoration(Map<String, Object> style) { Object obj = style.get(Constants.Name.TEXT_DECORATION); if (obj == null) { return WXTextDecoration.NONE; } String textDecoration = obj.toString(); if (textDecoration.equals("underline")) { return WXTextDecoration.UNDERLINE; } if (textDecoration.equals("line-through")) { return WXTextDecoration.LINETHROUGH; } return WXTextDecoration.NONE; } public static String getTextColor(Map<String, Object> style) { if (style == null) { return ""; } Object temp = style.get(Constants.Name.COLOR); return temp == null ? "" : temp.toString(); } public static int getFontWeight(Map<String, Object> style) { int typeface = android.graphics.Typeface.NORMAL; if (style != null) { Object temp = style.get(Constants.Name.FONT_WEIGHT); if (temp != null) { String fontWeight = temp.toString(); switch (fontWeight) { case "600": case "700": case "800": case "900": case Constants.Value.BOLD: typeface = Typeface.BOLD; break; } } } return typeface; } public static int getFontStyle(Map<String, Object> style) { int typeface = android.graphics.Typeface.NORMAL; if (style == null) { return typeface; } Object temp = style.get(Constants.Name.FONT_STYLE); if (temp == null) { return typeface; } String fontWeight = temp.toString(); if (fontWeight.equals(Constants.Value.ITALIC)) { typeface = android.graphics.Typeface.ITALIC; } return typeface; } public static int getFontSize(Map<String, Object> style, int viewPortW) { if (style == null) { return (int) WXViewUtils.getRealPxByWidth(WXText.sDEFAULT_SIZE, viewPortW); } int fontSize = WXUtils.getInt(style.get(Constants.Name.FONT_SIZE)); if (fontSize <= 0) { fontSize = WXText.sDEFAULT_SIZE; } return (int) WXViewUtils.getRealPxByWidth(fontSize, viewPortW); } public static String getFontFamily(Map<String, Object> style) { String fontFamily = null; if (style != null) { Object temp; temp = style.get(Constants.Name.FONT_FAMILY); if (temp != null) { fontFamily = temp.toString(); } } return fontFamily; } public static Layout.Alignment getTextAlignment(Map<String, Object> style) { Layout.Alignment alignment = Layout.Alignment.ALIGN_NORMAL; String textAlign = (String) style.get(Constants.Name.TEXT_ALIGN); if (TextUtils.equals(Constants.Value.LEFT, textAlign)) { alignment = Layout.Alignment.ALIGN_NORMAL; } else if (TextUtils.equals(Constants.Value.CENTER, textAlign)) { alignment = Layout.Alignment.ALIGN_CENTER; } else if (TextUtils.equals(Constants.Value.RIGHT, textAlign)) { alignment = Layout.Alignment.ALIGN_OPPOSITE; } return alignment; } public static TextUtils.TruncateAt getTextOverflow(Map<String, Object> style) { TextUtils.TruncateAt truncateAt = null; String ellipse = (String) style.get(Constants.Name.TEXT_OVERFLOW); if (TextUtils.equals(Constants.Name.ELLIPSIS, ellipse)) { truncateAt = TextUtils.TruncateAt.END; } return truncateAt; } public static int getLines(Map<String, Object> style) { return WXUtils.getInt(style.get(Constants.Name.LINES)); } public static int getLineHeight(Map<String, Object> style, int viewPortW) { if (style == null) { return UNSET; } int lineHeight = WXUtils.getInt(style.get(Constants.Name.LINE_HEIGHT)); if (lineHeight <= 0) { lineHeight = UNSET; return lineHeight; } return (int) WXViewUtils.getRealPxByWidth(lineHeight, viewPortW); } /* * flexbox **/ public CSSAlign getAlignItems() { Object alignItems = get(Constants.Name.ALIGN_ITEMS); if (alignItems == null) { return CSSAlign.STRETCH; } return CSSAlignConvert.convert2AlignItems(alignItems.toString().trim()); } public CSSAlign getAlignSelf() { Object alignSelf = get(Constants.Name.ALIGN_SELF); if (alignSelf == null) { return CSSAlign.AUTO; } return CSSAlignConvert.convert2AlignSelf(alignSelf.toString().trim()); } public float getFlex() { return WXUtils.getFloat(get(Constants.Name.FLEX)); } public CSSFlexDirection getFlexDirection() { Object flexDirection = get(Constants.Name.FLEX_DIRECTION); if (flexDirection == null) { return CSSFlexDirection.COLUMN; } return CSSFlexDirectionConvert.convert(flexDirection.toString().trim()); } public CSSJustify getJustifyContent() { Object justifyContent = get(Constants.Name.JUSTIFY_CONTENT); if (justifyContent == null) { return CSSJustify.FLEX_START; } return CSSJustifyConvert.convert(justifyContent.toString().trim()); } public CSSWrap getCSSWrap() { Object cssWrap = get(Constants.Name.FLEX_WRAP); if (cssWrap == null) { return CSSWrap.NOWRAP; } return CSSWrapConvert.convert(cssWrap.toString().trim()); } /* * base **/ public float getWidth() { return WXUtils.getFloat(get(Constants.Name.WIDTH)); } public float getDefaultWidth() { return WXUtils.getFloat(get(Constants.Name.DEFAULT_WIDTH)); } public float getMinWidth() { return WXUtils.getFloat(get(Constants.Name.MIN_WIDTH)); } public float getMaxWidth() { return WXUtils.getFloat(get(Constants.Name.MAX_WIDTH)); } public float getHeight() { return WXUtils.getFloat(get(Constants.Name.HEIGHT)); } public float getDefaultHeight() { return WXUtils.getFloat(get(Constants.Name.DEFAULT_HEIGHT)); } public float getMinHeight() { return WXUtils.getFloat(get(Constants.Name.MIN_HEIGHT)); } public float getMaxHeight() { return WXUtils.getFloat(get(Constants.Name.MAX_HEIGHT)); } /* * border **/ public float getBorderRadius() { float temp = WXUtils.getFloat(get(Constants.Name.BORDER_RADIUS)); if (WXUtils.isUndefined(temp)) { return Float.NaN; } return temp; } public float getBorderTopWidth() { return getBorderWidth(Constants.Name.BORDER_TOP_WIDTH); } private float getBorderWidth(String key) { float temp = WXUtils.getFloat(get(key)); if (WXUtils.isUndefined(temp)) { return getBorderWidth(); } return temp; } //TODO fix : only when set backgroundColor public float getBorderWidth() { return WXUtils.getFloat(get(Constants.Name.BORDER_WIDTH)); } public float getBorderRightWidth() { return getBorderWidth(Constants.Name.BORDER_RIGHT_WIDTH); } public float getBorderBottomWidth() { return getBorderWidth(Constants.Name.BORDER_BOTTOM_WIDTH); } public float getBorderLeftWidth() { return getBorderWidth(Constants.Name.BORDER_LEFT_WIDTH); } public String getBorderColor() { Object color = get(Constants.Name.BORDER_COLOR); return color == null ? null : color.toString(); } public String getBorderStyle() { Object borderStyle = get(Constants.Name.BORDER_STYLE); return borderStyle == null ? null : borderStyle.toString(); } public float getMargin() { return WXUtils.getFloat(get(Constants.Name.MARGIN)); } public float getPadding() { return WXUtils.getFloat(get(Constants.Name.PADDING)); } /* * margin **/ public float getMarginTop() { float temp = WXUtils.getFloat(get(Constants.Name.MARGIN_TOP)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.MARGIN)); } return temp; } public float getMarginLeft() { float temp = WXUtils.getFloat(get(Constants.Name.MARGIN_LEFT)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.MARGIN)); } return temp; } public float getMarginRight() { float temp = WXUtils.getFloat(get(Constants.Name.MARGIN_RIGHT)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.MARGIN)); } return temp; } public float getMarginBottom() { float temp = WXUtils.getFloat(get(Constants.Name.MARGIN_BOTTOM)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.MARGIN)); } return temp; } /* * padding **/ public float getPaddingTop() { float temp = WXUtils.getFloat(get(Constants.Name.PADDING_TOP)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.PADDING)); } return temp; } public float getPaddingLeft() { float temp = WXUtils.getFloat(get(Constants.Name.PADDING_LEFT)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.PADDING)); } return temp; } public float getPaddingRight() { float temp = WXUtils.getFloat(get(Constants.Name.PADDING_RIGHT)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.PADDING)); } return temp; } public float getPaddingBottom() { float temp = WXUtils.getFloat(get(Constants.Name.PADDING_BOTTOM)); if (WXUtils.isUndefined(temp)) { temp = WXUtils.getFloat(get(Constants.Name.PADDING)); } return temp; } /* * position **/ public CSSPositionType getPosition() { Object position = get(Constants.Name.POSITION); if (position == null) { return CSSPositionType.RELATIVE; } return CSSPositionTypeConvert.convert(position.toString().trim()); } public boolean isSticky() { Object position = get(Constants.Name.POSITION); if (position == null) { return false; } return position.toString().equals(Constants.Value.STICKY); } public boolean isFixed() { Object position = get(Constants.Name.POSITION); if (position == null) { return false; } return position.toString().equals(Constants.Value.FIXED); } public float getLeft() { return WXUtils.getFloat(get(Constants.Name.LEFT)); } public float getTop() { return WXUtils.getFloat(get(Constants.Name.TOP)); } public float getRight() { return WXUtils.getFloat(get(Constants.Name.RIGHT)); } public float getBottom() { return WXUtils.getFloat(get(Constants.Name.BOTTOM)); } /* * others **/ public String getBackgroundColor() { Object temp = get(Constants.Name.BACKGROUND_COLOR); return temp == null ? "" : temp.toString(); } public int getTimeFontSize() { int fontSize = WXUtils.getInt(get("timeFontSize")); if (fontSize <= 0) { fontSize = WXText.sDEFAULT_SIZE; } return fontSize; } public float getOpacity() { Object object = get(Constants.Name.OPACITY); float opacity = 1; if (object == null) { return opacity; } return WXUtils.getFloat(object); } public String getOverflow() { Object obj = get(Constants.Name.OVERFLOW); return obj == null ? Constants.Value.VISIBLE : obj.toString(); } @Override public boolean equals(Object o) { return map.equals(o); } @Override public int hashCode() { return map.hashCode(); } @Override public void clear() { map.clear(); } @Override public boolean containsKey(Object key) { return map.containsKey(key); } @Override public boolean containsValue(Object value) { return map.containsValue(value); } @NonNull @Override public Set<Entry<String, Object>> entrySet() { return map.entrySet(); } @Override public Object get(Object key) { return map.get(key); } @Override public boolean isEmpty() { return map.isEmpty(); } @NonNull @Override public Set<String> keySet() { return map.keySet(); } @Override public Object put(String key, Object value) { return map.put(key, value); } @Override public void putAll(Map<? extends String, ?> map) { this.map.putAll(map); } /** * Used by Dom Thread new and update styles. * @param map * @param byPesudo */ public void putAll(Map<? extends String, ?> map, boolean byPesudo) { this.map.putAll(map); if (!byPesudo) { this.mPesudoResetStyleMap.putAll(map); processPesudoClasses(map); } } public Map<String, Object> getPesudoResetStyles() { return mPesudoResetStyleMap; } public Map<String, Map<String, Object>> getPesudoStyles() { return mPesudoStyleMap; } <T extends String, V> void processPesudoClasses(Map<T, V> styles) { Iterator<Map.Entry<T, V>> iterator = styles.entrySet().iterator(); Map<String, Map<String, Object>> pesudoStyleMap = mPesudoStyleMap; while (iterator.hasNext()) { Map.Entry<T, V> entry = iterator.next(); //Key Format: "style-prop:pesudo_clz1:pesudo_clz2" String key = entry.getKey(); int i; if ((i = key.indexOf(":")) > 0) { String clzName = key.substring(i); if (clzName.equals(Constants.PSEUDO.ENABLED)) { //enabled, use as regular style this.mPesudoResetStyleMap.put(key.substring(0, i), entry.getValue()); continue; } else { clzName = clzName.replace(Constants.PSEUDO.ENABLED, "");//remove ':enabled' which is ignored } Map<String, Object> stylesMap = pesudoStyleMap.get(clzName); if (stylesMap == null) { stylesMap = new ArrayMap<>(); pesudoStyleMap.put(clzName, stylesMap); } stylesMap.put(key.substring(0, i), entry.getValue()); } } } @Override public Object remove(Object key) { return map.remove(key); } @Override public int size() { return map.size(); } @NonNull @Override public Collection<Object> values() { return map.values(); } @Override protected WXStyle clone() { WXStyle style = new WXStyle(); style.map.putAll(this.map); for (Entry<String, Map<String, Object>> entry : this.mPesudoStyleMap.entrySet()) { Map<String, Object> valueClone = new ArrayMap<>(); valueClone.putAll(entry.getValue()); style.mPesudoStyleMap.put(entry.getKey(), valueClone); } style.mPesudoResetStyleMap.putAll(this.mPesudoResetStyleMap); return style; } }