├── settings.gradle ├── example.gif ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── app ├── src │ ├── main │ │ ├── res │ │ │ ├── mipmap-hdpi │ │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-mdpi │ │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-xhdpi │ │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-xxhdpi │ │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-xxxhdpi │ │ │ │ └── ic_launcher.png │ │ │ ├── drawable-hdpi │ │ │ │ ├── ic_action_redo.png │ │ │ │ ├── ic_action_undo.png │ │ │ │ ├── ic_format_bold.png │ │ │ │ ├── ic_format_clear.png │ │ │ │ ├── ic_format_quote.png │ │ │ │ ├── ic_insert_link.png │ │ │ │ ├── ic_format_bullet.png │ │ │ │ ├── ic_format_italic.png │ │ │ │ ├── ic_format_underline.png │ │ │ │ └── ic_format_strikethrough.png │ │ │ ├── drawable-mdpi │ │ │ │ ├── ic_action_redo.png │ │ │ │ ├── ic_action_undo.png │ │ │ │ ├── ic_format_bold.png │ │ │ │ ├── ic_format_clear.png │ │ │ │ ├── ic_format_quote.png │ │ │ │ ├── ic_insert_link.png │ │ │ │ ├── ic_format_bullet.png │ │ │ │ ├── ic_format_italic.png │ │ │ │ ├── ic_format_underline.png │ │ │ │ └── ic_format_strikethrough.png │ │ │ ├── drawable-xhdpi │ │ │ │ ├── ic_action_redo.png │ │ │ │ ├── ic_action_undo.png │ │ │ │ ├── ic_format_bold.png │ │ │ │ ├── ic_insert_link.png │ │ │ │ ├── ic_format_bullet.png │ │ │ │ ├── ic_format_clear.png │ │ │ │ ├── ic_format_italic.png │ │ │ │ ├── ic_format_quote.png │ │ │ │ ├── ic_format_underline.png │ │ │ │ └── ic_format_strikethrough.png │ │ │ ├── drawable-xxhdpi │ │ │ │ ├── ic_action_redo.png │ │ │ │ ├── ic_action_undo.png │ │ │ │ ├── ic_format_bold.png │ │ │ │ ├── ic_format_bullet.png │ │ │ │ ├── ic_format_clear.png │ │ │ │ ├── ic_format_italic.png │ │ │ │ ├── ic_format_quote.png │ │ │ │ ├── ic_insert_link.png │ │ │ │ ├── ic_format_underline.png │ │ │ │ └── ic_format_strikethrough.png │ │ │ ├── drawable-xxxhdpi │ │ │ │ ├── ic_action_redo.png │ │ │ │ ├── ic_action_undo.png │ │ │ │ ├── ic_format_bold.png │ │ │ │ ├── ic_format_clear.png │ │ │ │ ├── ic_format_quote.png │ │ │ │ ├── ic_insert_link.png │ │ │ │ ├── ic_format_bullet.png │ │ │ │ ├── ic_format_italic.png │ │ │ │ ├── ic_format_underline.png │ │ │ │ └── ic_format_strikethrough.png │ │ │ ├── values │ │ │ │ ├── styles.xml │ │ │ │ ├── colors.xml │ │ │ │ ├── dimens.xml │ │ │ │ └── strings.xml │ │ │ ├── menu │ │ │ │ └── menu_main.xml │ │ │ ├── layout │ │ │ │ ├── dialog_link.xml │ │ │ │ └── activity_main.xml │ │ │ └── values-v21 │ │ │ │ └── styles.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ │ └── io │ │ │ └── github │ │ │ └── mthli │ │ │ └── knifedemo │ │ │ └── MainActivity.java │ └── androidTest │ │ └── java │ │ └── io │ │ └── github │ │ └── mthli │ │ └── knifedemo │ │ └── ApplicationTest.java ├── build.gradle └── proguard-rules.pro ├── knife ├── src │ ├── androidTest │ │ └── java │ │ │ └── io │ │ │ └── github │ │ │ └── mthli │ │ │ └── knife │ │ │ └── ApplicationTest.java │ └── main │ │ ├── res │ │ └── values │ │ │ ├── strings.xml │ │ │ └── attrs.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ └── io │ │ └── github │ │ └── mthli │ │ └── knife │ │ ├── KnifePart.java │ │ ├── KnifeURLSpan.java │ │ ├── KnifeQuoteSpan.java │ │ ├── KnifeBulletSpan.java │ │ ├── KnifeTagHandler.java │ │ ├── KnifeParser.java │ │ └── KnifeText.java ├── proguard-rules.pro └── build.gradle ├── .gitignore ├── gradle.properties ├── gradlew.bat ├── README.md ├── gradlew └── LICENSE /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app', ':knife' 2 | -------------------------------------------------------------------------------- /example.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mthli/Knife/HEAD/example.gif -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- 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-------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Wed Oct 21 11:34:03 PDT 2015 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.8-all.zip 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 2dp 6 | 8dp 7 | 8dp 8 | 2dp 9 | 10 | -------------------------------------------------------------------------------- /knife/src/androidTest/java/io/github/mthli/knife/ApplicationTest.java: -------------------------------------------------------------------------------- 1 | package io.github.mthli.knife; 2 | 3 | import android.app.Application; 4 | import android.test.ApplicationTestCase; 5 | 6 | /** 7 | * Testing Fundamentals 8 | */ 9 | public class ApplicationTest extends ApplicationTestCase { 10 | public ApplicationTest() { 11 | super(Application.class); 12 | } 13 | } -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | 15 | # Gradle files 16 | .gradle/ 17 | build/ 18 | /*/build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Other 30 | .idea/ 31 | *.iml 32 | -------------------------------------------------------------------------------- /app/src/androidTest/java/io/github/mthli/knifedemo/ApplicationTest.java: -------------------------------------------------------------------------------- 1 | package io.github.mthli.knifedemo; 2 | 3 | import android.app.Application; 4 | import android.test.ApplicationTestCase; 5 | 6 | /** 7 | * Testing Fundamentals 8 | */ 9 | public class ApplicationTest extends ApplicationTestCase { 10 | public ApplicationTest() { 11 | super(Application.class); 12 | } 13 | } -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 23 5 | buildToolsVersion "23.0.2" 6 | 7 | defaultConfig { 8 | applicationId "io.github.mthli.knifedemo" 9 | minSdkVersion 14 10 | targetSdkVersion 23 11 | versionCode 2 12 | versionName "1.1" 13 | } 14 | 15 | buildTypes { 16 | release { 17 | minifyEnabled false 18 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 19 | } 20 | } 21 | } 22 | 23 | dependencies { 24 | compile fileTree(include: ['*.jar'], dir: 'libs') 25 | compile project(':knife') 26 | } 27 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /home/matthew/Android/Sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/main/res/menu/menu_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 9 | 10 | 11 | 15 | 16 | 17 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /knife/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /home/matthew/Android/Sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 6 | 7 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /app/src/main/res/layout/dialog_link.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 7 | 8 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /knife/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16 | 17 | 18 | 19 | Knife 20 | 21 | 22 | -------------------------------------------------------------------------------- /app/src/main/res/values-v21/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 12 | 13 | 18 | 19 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m 13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 14 | 15 | # When configured, Gradle will run in incubating parallel mode. 16 | # This option should only be used with decoupled projects. More details, visit 17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 18 | # org.gradle.parallel=true -------------------------------------------------------------------------------- /knife/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16 | 17 | 19 | 20 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | KnifeDemo 5 | https://github.com/mthli/Knife 6 | 7 | 8 | Undo 9 | Redo 10 | GitHub 11 | 12 | 13 | Insert link 14 | http(s):// 15 | OK 16 | Cancel 17 | 18 | 19 | Bold 20 | Italic 21 | Underline 22 | Strikethrough 23 | Bullet 24 | Quote 25 | Insert link 26 | Format clear 27 | 28 | 29 | -------------------------------------------------------------------------------- /knife/src/main/java/io/github/mthli/knife/KnifePart.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package io.github.mthli.knife; 18 | 19 | public class KnifePart { 20 | private int start; 21 | private int end; 22 | 23 | public KnifePart(int start, int end) { 24 | this.start = start; 25 | this.end = end; 26 | } 27 | 28 | public int getStart() { 29 | return start; 30 | } 31 | 32 | public int getEnd() { 33 | return end; 34 | } 35 | 36 | public boolean isValid() { 37 | return start < end; 38 | } 39 | } 40 | -------------------------------------------------------------------------------- /knife/build.gradle: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 | * in compliance with the License. You may obtain a copy of the License at 6 | * 7 | * http://www.apache.org/licenses/LICENSE-2.0 8 | * 9 | * Unless required by applicable law or agreed to in writing, software distributed under the License 10 | * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 | * or implied. See the License for the specific language governing permissions and limitations under 12 | * the License. 13 | */ 14 | 15 | apply plugin: 'com.android.library' 16 | 17 | android { 18 | compileSdkVersion 23 19 | buildToolsVersion "23.0.2" 20 | 21 | defaultConfig { 22 | minSdkVersion 14 23 | targetSdkVersion 23 24 | versionCode 2 25 | versionName "1.1" 26 | } 27 | 28 | buildTypes { 29 | release { 30 | minifyEnabled false 31 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 32 | } 33 | } 34 | } 35 | 36 | dependencies { 37 | compile fileTree(dir: 'libs', include: ['*.jar']) 38 | } 39 | -------------------------------------------------------------------------------- /knife/src/main/res/values/attrs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | -------------------------------------------------------------------------------- /knife/src/main/java/io/github/mthli/knife/KnifeURLSpan.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package io.github.mthli.knife; 18 | 19 | import android.os.Parcel; 20 | import android.text.TextPaint; 21 | import android.text.style.URLSpan; 22 | 23 | public class KnifeURLSpan extends URLSpan { 24 | private int linkColor = 0; 25 | private boolean linkUnderline = true; 26 | 27 | public KnifeURLSpan(String url, int linkColor, boolean linkUnderline) { 28 | super(url); 29 | this.linkColor = linkColor; 30 | this.linkUnderline = linkUnderline; 31 | } 32 | 33 | public KnifeURLSpan(Parcel src) { 34 | super(src); 35 | this.linkColor = src.readInt(); 36 | this.linkUnderline = src.readInt() != 0; 37 | } 38 | 39 | @Override 40 | public void writeToParcel(Parcel dest, int flags) { 41 | super.writeToParcel(dest, flags); 42 | dest.writeInt(linkColor); 43 | dest.writeInt(linkUnderline ? 1 : 0); 44 | } 45 | 46 | @Override 47 | public void updateDrawState(TextPaint ds) { 48 | ds.setColor(linkColor != 0 ? linkColor : ds.linkColor); 49 | ds.setUnderlineText(linkUnderline); 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /knife/src/main/java/io/github/mthli/knife/KnifeQuoteSpan.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package io.github.mthli.knife; 18 | 19 | import android.graphics.Canvas; 20 | import android.graphics.Paint; 21 | import android.os.Parcel; 22 | import android.text.Layout; 23 | import android.text.style.QuoteSpan; 24 | 25 | public class KnifeQuoteSpan extends QuoteSpan { 26 | private static final int DEFAULT_STRIPE_WIDTH = 2; 27 | private static final int DEFAULT_GAP_WIDTH = 2; 28 | private static final int DEFAULT_COLOR = 0xff0000ff; 29 | 30 | private int quoteColor; 31 | private int quoteStripeWidth; 32 | private int quoteGapWidth; 33 | 34 | public KnifeQuoteSpan(int quoteColor, int quoteStripeWidth, int quoteGapWidth) { 35 | this.quoteColor = quoteColor != 0 ? quoteColor : DEFAULT_COLOR; 36 | this.quoteStripeWidth = quoteStripeWidth != 0 ? quoteStripeWidth : DEFAULT_STRIPE_WIDTH; 37 | this.quoteGapWidth = quoteGapWidth != 0 ? quoteGapWidth : DEFAULT_GAP_WIDTH; 38 | } 39 | 40 | public KnifeQuoteSpan(Parcel src) { 41 | super(src); 42 | this.quoteColor = src.readInt(); 43 | this.quoteStripeWidth = src.readInt(); 44 | this.quoteGapWidth = src.readInt(); 45 | } 46 | 47 | @Override 48 | public void writeToParcel(Parcel dest, int flags) { 49 | super.writeToParcel(dest, flags); 50 | dest.writeInt(quoteColor); 51 | dest.writeInt(quoteStripeWidth); 52 | dest.writeInt(quoteGapWidth); 53 | } 54 | 55 | @Override 56 | public int getLeadingMargin(boolean first) { 57 | return quoteStripeWidth + quoteGapWidth; 58 | } 59 | 60 | @Override 61 | public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, 62 | int top, int baseline, int bottom, 63 | CharSequence text, int start, int end, 64 | boolean first, Layout layout) { 65 | Paint.Style style = p.getStyle(); 66 | int color = p.getColor(); 67 | 68 | p.setStyle(Paint.Style.FILL); 69 | p.setColor(quoteColor); 70 | c.drawRect(x, top, x + dir * quoteGapWidth, bottom, p); 71 | 72 | p.setStyle(style); 73 | p.setColor(color); 74 | } 75 | } 76 | -------------------------------------------------------------------------------- /knife/src/main/java/io/github/mthli/knife/KnifeBulletSpan.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package io.github.mthli.knife; 18 | 19 | import android.graphics.Canvas; 20 | import android.graphics.Paint; 21 | import android.graphics.Path; 22 | import android.os.Parcel; 23 | import android.text.Layout; 24 | import android.text.Spanned; 25 | import android.text.style.BulletSpan; 26 | 27 | public class KnifeBulletSpan extends BulletSpan { 28 | private static final int DEFAULT_COLOR = 0; 29 | private static final int DEFAULT_RADIUS = 3; 30 | private static final int DEFAULT_GAP_WIDTH = 2; 31 | private static Path bulletPath = null; 32 | 33 | private int bulletColor = DEFAULT_COLOR; 34 | private int bulletRadius = DEFAULT_RADIUS; 35 | private int bulletGapWidth = DEFAULT_GAP_WIDTH; 36 | 37 | public KnifeBulletSpan(int bulletColor, int bulletRadius, int bulletGapWidth) { 38 | this.bulletColor = bulletColor != 0 ? bulletColor : DEFAULT_COLOR; 39 | this.bulletRadius = bulletRadius != 0 ? bulletRadius : DEFAULT_RADIUS; 40 | this.bulletGapWidth = bulletGapWidth != 0 ? bulletGapWidth : DEFAULT_GAP_WIDTH; 41 | } 42 | 43 | public KnifeBulletSpan(Parcel src) { 44 | super(src); 45 | this.bulletColor = src.readInt(); 46 | this.bulletRadius = src.readInt(); 47 | this.bulletGapWidth = src.readInt(); 48 | } 49 | 50 | @Override 51 | public void writeToParcel(Parcel dest, int flags) { 52 | super.writeToParcel(dest, flags); 53 | dest.writeInt(bulletColor); 54 | dest.writeInt(bulletRadius); 55 | dest.writeInt(bulletGapWidth); 56 | } 57 | 58 | @Override 59 | public int getLeadingMargin(boolean first) { 60 | return 2 * bulletRadius + bulletGapWidth; 61 | } 62 | 63 | @Override 64 | public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, 65 | int top, int baseline, int bottom, 66 | CharSequence text, int start, int end, 67 | boolean first, Layout l) { 68 | if (((Spanned) text).getSpanStart(this) == start) { 69 | Paint.Style style = p.getStyle(); 70 | 71 | int oldColor = p.getColor(); 72 | p.setColor(bulletColor); 73 | p.setStyle(Paint.Style.FILL); 74 | 75 | if (c.isHardwareAccelerated()) { 76 | if (bulletPath == null) { 77 | bulletPath = new Path(); 78 | // Bullet is slightly better to avoid aliasing artifacts on mdpi devices. 79 | bulletPath.addCircle(0.0f, 0.0f, bulletRadius, Path.Direction.CW); 80 | } 81 | 82 | c.save(); 83 | c.translate(x + dir * bulletRadius, (top + bottom) / 2.0f); 84 | c.drawPath(bulletPath, p); 85 | c.restore(); 86 | } else { 87 | c.drawCircle(x + dir * bulletRadius, (top + bottom) / 2.0f, bulletRadius, p); 88 | } 89 | 90 | p.setColor(oldColor); 91 | p.setStyle(style); 92 | } 93 | } 94 | } -------------------------------------------------------------------------------- /knife/src/main/java/io/github/mthli/knife/KnifeTagHandler.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * Copyright (C) 2013-2015 Dominik Schürmann 4 | * Copyright (C) 2013-2015 Juha Kuitunen 5 | * Copyright (C) 2013 Mohammed Lakkadshaw 6 | * Copyright (C) 2007 The Android Open Source Project 7 | * 8 | * Licensed under the Apache License, Version 2.0 (the "License"); 9 | * you may not use this file except in compliance with the License. 10 | * You may obtain a copy of the License at 11 | * 12 | * http://www.apache.org/licenses/LICENSE-2.0 13 | * 14 | * Unless required by applicable law or agreed to in writing, software 15 | * distributed under the License is distributed on an "AS IS" BASIS, 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 | * See the License for the specific language governing permissions and 18 | * limitations under the License. 19 | */ 20 | 21 | package io.github.mthli.knife; 22 | 23 | import android.text.Editable; 24 | import android.text.Html; 25 | import android.text.Spannable; 26 | import android.text.Spanned; 27 | import android.text.style.BulletSpan; 28 | import android.text.style.StrikethroughSpan; 29 | 30 | import org.xml.sax.XMLReader; 31 | 32 | public class KnifeTagHandler implements Html.TagHandler { 33 | private static final String BULLET_LI = "li"; 34 | private static final String STRIKETHROUGH_S = "s"; 35 | private static final String STRIKETHROUGH_STRIKE = "strike"; 36 | private static final String STRIKETHROUGH_DEL = "del"; 37 | 38 | private static class Li {} 39 | private static class Strike {} 40 | 41 | @Override 42 | public void handleTag(boolean opening, String tag, Editable output, XMLReader xmlReader) { 43 | if (opening) { 44 | if (tag.equalsIgnoreCase(BULLET_LI)) { 45 | if (output.length() > 0 && output.charAt(output.length() - 1) != '\n') { 46 | output.append("\n"); 47 | } 48 | start(output, new Li()); 49 | } else if (tag.equalsIgnoreCase(STRIKETHROUGH_S) || tag.equalsIgnoreCase(STRIKETHROUGH_STRIKE) || tag.equalsIgnoreCase(STRIKETHROUGH_DEL)) { 50 | start(output, new Strike()); 51 | } 52 | } else { 53 | if (tag.equalsIgnoreCase(BULLET_LI)) { 54 | if (output.length() > 0 && output.charAt(output.length() - 1) != '\n') { 55 | output.append("\n"); 56 | } 57 | end(output, Li.class, new BulletSpan()); 58 | } else if (tag.equalsIgnoreCase(STRIKETHROUGH_S) || tag.equalsIgnoreCase(STRIKETHROUGH_STRIKE) || tag.equalsIgnoreCase(STRIKETHROUGH_DEL)) { 59 | end(output, Strike.class, new StrikethroughSpan()); 60 | } 61 | } 62 | } 63 | 64 | private void start(Editable output, Object mark) { 65 | output.setSpan(mark, output.length(), output.length(), Spanned.SPAN_MARK_MARK); 66 | } 67 | 68 | private void end(Editable output, Class kind, Object... replaces) { 69 | Object last = getLast(output, kind); 70 | int start = output.getSpanStart(last); 71 | int end = output.length(); 72 | output.removeSpan(last); 73 | 74 | if (start != end) { 75 | for (Object replace : replaces) { 76 | output.setSpan(replace, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 77 | } 78 | } 79 | } 80 | 81 | private static Object getLast(Editable text, Class kind) { 82 | Object[] spans = text.getSpans(0, text.length(), kind); 83 | 84 | if (spans.length == 0) { 85 | return null; 86 | } else { 87 | for (int i = spans.length; i > 0; i--) { 88 | if (text.getSpanFlags(spans[i - 1]) == Spannable.SPAN_MARK_MARK) { 89 | return spans[i - 1]; 90 | } 91 | } 92 | 93 | return null; 94 | } 95 | } 96 | } 97 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Knife 2 | === 3 | 4 | [![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-Knife-brightgreen.svg?style=flat-square)](http://android-arsenal.com/details/1/2924) 5 | 6 | Knife (extend EditText) is a rich text editor component for writing documents in Android. 7 | 8 | Just select text and use one line code to style it! 9 | 10 | Support Android 4.0+ 11 | 12 | ## Example 13 | 14 | ![example.gif](./example.gif "example.gif") 15 | 16 | Here has a [demo apk](https://github.com/mthli/Knife/releases/download/v1.1/KnifeDemo.1.1.apk "KnifeDemo.1.1.apk"), and it's [source code](https://github.com/mthli/Knife/tree/master/app "KnifeDemo.1.1.apk's source code"), very easy to understand~ 17 | 18 | More experiments see [mthli/Type](https://github.com/mthli/Type "mthli/Type"). 19 | 20 | ## Api 21 | 22 | - `bold(boolean valid)` __bold__ the selected text. 23 | 24 | - `italic(boolean valid)` _italic_ the selected text. 25 | 26 | - `underline(boolean valid)` \underline\ the selected text. 27 | 28 | - `strikethrough(boolean valid)` strikethrough the selected text. 29 | 30 | - `bullet(boolean valid)` bullet the selected text. 31 | 32 | - `quote(boolean valid)` quote the selected text. 33 | 34 | - `link(String link)` and `link(String link, int start, int end)` to link the text. 35 | 36 | - `contains(int FORMAT)` return `true` if the selected text contains the FORMAT. 37 | 38 | - `clearFormats()` clear all formats. 39 | 40 | - `redo()` when text changed, you can redo it! 41 | 42 | - `undo()` when text change, you can also undo it! 43 | 44 | - `fromHtml()` import from HTML file. 45 | 46 | - `toHtml()` export as HTML file. 47 | 48 | If you want to get more control of the editable text, just extend KnifeText to get all protected method. 49 | 50 | #### Custom 51 | 52 | - `app:bulletColor` 53 | 54 | - `app:bulletRadius` 55 | 56 | - `app:bulletGapWidth` 57 | 58 | - `app:historyEnable` `true` to enable record history, so you can `redo()` and `undo()`. 59 | 60 | - `app:historySize` the record max limit. 61 | 62 | - `app:linkColor` 63 | 64 | - `app:linkUnderline` `true` to enable link underline. 65 | 66 | - `app:quoteColor` 67 | 68 | - `app:quoteStripeWidth` the quote line width. 69 | 70 | - `app:quoteCapWidth` 71 | 72 | #### TODO 73 | 74 | - Insert image. 75 | 76 | ## Gradle 77 | 78 | At your top-level `build.gradle` file: 79 | 80 | repositories { 81 | // ... 82 | maven { url 'https://jitpack.io' } 83 | } 84 | 85 | And then at your project `build.gradle` file: 86 | 87 | dependencies { 88 | compile 'com.github.mthli:Knife:v1.1' 89 | } 90 | 91 | Done! 92 | 93 | ## Reference 94 | 95 | - [Spans, a Powerful Concept.](http://flavienlaurent.com/blog/2014/01/31/spans/ "Spans, a Powerful Concept.") 96 | 97 | - [Spanned | Android Developers](http://developer.android.com/reference/android/text/Spanned.html "Spanned | Android Developers") 98 | 99 | - [core/java/android/text/Html.java - Google Git](https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/text/Html.java "core/java/android/text/Html.java - Google Git") 100 | 101 | ## Thanks 102 | 103 | - [Squire](https://github.com/neilj/Squire "Squire") 104 | 105 | - [html-textview](https://github.com/SufficientlySecure/html-textview "html-textview") 106 | 107 | ## License 108 | 109 | Copyright 2015 Matthew Lee 110 | 111 | Licensed under the Apache License, Version 2.0 (the "License"); 112 | you may not use this file except in compliance with the License. 113 | You may obtain a copy of the License at 114 | 115 | http://www.apache.org/licenses/LICENSE-2.0 116 | 117 | Unless required by applicable law or agreed to in writing, software 118 | distributed under the License is distributed on an "AS IS" BASIS, 119 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 120 | See the License for the specific language governing permissions and 121 | limitations under the License. 122 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> \(.*\)$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 7 | 8 | 13 | 14 | 17 | 18 | 25 | 26 | 27 | 34 | 35 | 36 | 43 | 44 | 45 | 52 | 53 | 54 | 61 | 62 | 63 | 70 | 71 | 72 | 79 | 80 | 81 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 118 | 119 | 120 | -------------------------------------------------------------------------------- /app/src/main/java/io/github/mthli/knifedemo/MainActivity.java: -------------------------------------------------------------------------------- 1 | package io.github.mthli.knifedemo; 2 | 3 | import android.app.Activity; 4 | import android.app.AlertDialog; 5 | import android.content.DialogInterface; 6 | import android.content.Intent; 7 | import android.net.Uri; 8 | import android.os.Bundle; 9 | import android.text.TextUtils; 10 | import android.view.Menu; 11 | import android.view.MenuItem; 12 | import android.view.View; 13 | import android.widget.EditText; 14 | import android.widget.ImageButton; 15 | import android.widget.Toast; 16 | 17 | import io.github.mthli.knife.KnifeText; 18 | 19 | public class MainActivity extends Activity { 20 | private static final String BOLD = "Bold

"; 21 | private static final String ITALIT = "Italic

"; 22 | private static final String UNDERLINE = "Underline

"; 23 | private static final String STRIKETHROUGH = "Strikethrough

"; // or or 24 | private static final String BULLET = "
  • asdfg
"; 25 | private static final String QUOTE = "
Quote
"; 26 | private static final String LINK = "Link

"; 27 | private static final String EXAMPLE = BOLD + ITALIT + UNDERLINE + STRIKETHROUGH + BULLET + QUOTE + LINK; 28 | 29 | private KnifeText knife; 30 | 31 | @Override 32 | protected void onCreate(Bundle savedInstanceState) { 33 | super.onCreate(savedInstanceState); 34 | setContentView(R.layout.activity_main); 35 | 36 | knife = (KnifeText) findViewById(R.id.knife); 37 | // ImageGetter coming soon... 38 | knife.fromHtml(EXAMPLE); 39 | knife.setSelection(knife.getEditableText().length()); 40 | 41 | setupBold(); 42 | setupItalic(); 43 | setupUnderline(); 44 | setupStrikethrough(); 45 | setupBullet(); 46 | setupQuote(); 47 | setupLink(); 48 | setupClear(); 49 | } 50 | 51 | private void setupBold() { 52 | ImageButton bold = (ImageButton) findViewById(R.id.bold); 53 | 54 | bold.setOnClickListener(new View.OnClickListener() { 55 | @Override 56 | public void onClick(View v) { 57 | knife.bold(!knife.contains(KnifeText.FORMAT_BOLD)); 58 | } 59 | }); 60 | 61 | bold.setOnLongClickListener(new View.OnLongClickListener() { 62 | @Override 63 | public boolean onLongClick(View v) { 64 | Toast.makeText(MainActivity.this, R.string.toast_bold, Toast.LENGTH_SHORT).show(); 65 | return true; 66 | } 67 | }); 68 | } 69 | 70 | private void setupItalic() { 71 | ImageButton italic = (ImageButton) findViewById(R.id.italic); 72 | 73 | italic.setOnClickListener(new View.OnClickListener() { 74 | @Override 75 | public void onClick(View v) { 76 | knife.italic(!knife.contains(KnifeText.FORMAT_ITALIC)); 77 | } 78 | }); 79 | 80 | italic.setOnLongClickListener(new View.OnLongClickListener() { 81 | @Override 82 | public boolean onLongClick(View v) { 83 | Toast.makeText(MainActivity.this, R.string.toast_italic, Toast.LENGTH_SHORT).show(); 84 | return true; 85 | } 86 | }); 87 | } 88 | 89 | private void setupUnderline() { 90 | ImageButton underline = (ImageButton) findViewById(R.id.underline); 91 | 92 | underline.setOnClickListener(new View.OnClickListener() { 93 | @Override 94 | public void onClick(View v) { 95 | knife.underline(!knife.contains(KnifeText.FORMAT_UNDERLINED)); 96 | } 97 | }); 98 | 99 | underline.setOnLongClickListener(new View.OnLongClickListener() { 100 | @Override 101 | public boolean onLongClick(View v) { 102 | Toast.makeText(MainActivity.this, R.string.toast_underline, Toast.LENGTH_SHORT).show(); 103 | return true; 104 | } 105 | }); 106 | } 107 | 108 | private void setupStrikethrough() { 109 | ImageButton strikethrough = (ImageButton) findViewById(R.id.strikethrough); 110 | 111 | strikethrough.setOnClickListener(new View.OnClickListener() { 112 | @Override 113 | public void onClick(View v) { 114 | knife.strikethrough(!knife.contains(KnifeText.FORMAT_STRIKETHROUGH)); 115 | } 116 | }); 117 | 118 | strikethrough.setOnLongClickListener(new View.OnLongClickListener() { 119 | @Override 120 | public boolean onLongClick(View v) { 121 | Toast.makeText(MainActivity.this, R.string.toast_strikethrough, Toast.LENGTH_SHORT).show(); 122 | return true; 123 | } 124 | }); 125 | } 126 | 127 | private void setupBullet() { 128 | ImageButton bullet = (ImageButton) findViewById(R.id.bullet); 129 | 130 | bullet.setOnClickListener(new View.OnClickListener() { 131 | @Override 132 | public void onClick(View v) { 133 | knife.bullet(!knife.contains(KnifeText.FORMAT_BULLET)); 134 | } 135 | }); 136 | 137 | 138 | bullet.setOnLongClickListener(new View.OnLongClickListener() { 139 | @Override 140 | public boolean onLongClick(View v) { 141 | Toast.makeText(MainActivity.this, R.string.toast_bullet, Toast.LENGTH_SHORT).show(); 142 | return true; 143 | } 144 | }); 145 | } 146 | 147 | private void setupQuote() { 148 | ImageButton quote = (ImageButton) findViewById(R.id.quote); 149 | 150 | quote.setOnClickListener(new View.OnClickListener() { 151 | @Override 152 | public void onClick(View v) { 153 | knife.quote(!knife.contains(KnifeText.FORMAT_QUOTE)); 154 | } 155 | }); 156 | 157 | quote.setOnLongClickListener(new View.OnLongClickListener() { 158 | @Override 159 | public boolean onLongClick(View v) { 160 | Toast.makeText(MainActivity.this, R.string.toast_quote, Toast.LENGTH_SHORT).show(); 161 | return true; 162 | } 163 | }); 164 | } 165 | 166 | private void setupLink() { 167 | ImageButton link = (ImageButton) findViewById(R.id.link); 168 | 169 | link.setOnClickListener(new View.OnClickListener() { 170 | @Override 171 | public void onClick(View v) { 172 | showLinkDialog(); 173 | } 174 | }); 175 | 176 | link.setOnLongClickListener(new View.OnLongClickListener() { 177 | @Override 178 | public boolean onLongClick(View v) { 179 | Toast.makeText(MainActivity.this, R.string.toast_insert_link, Toast.LENGTH_SHORT).show(); 180 | return true; 181 | } 182 | }); 183 | } 184 | 185 | private void setupClear() { 186 | ImageButton clear = (ImageButton) findViewById(R.id.clear); 187 | 188 | clear.setOnClickListener(new View.OnClickListener() { 189 | @Override 190 | public void onClick(View v) { 191 | knife.clearFormats(); 192 | } 193 | }); 194 | 195 | clear.setOnLongClickListener(new View.OnLongClickListener() { 196 | @Override 197 | public boolean onLongClick(View v) { 198 | Toast.makeText(MainActivity.this, R.string.toast_format_clear, Toast.LENGTH_SHORT).show(); 199 | return true; 200 | } 201 | }); 202 | } 203 | 204 | private void showLinkDialog() { 205 | final int start = knife.getSelectionStart(); 206 | final int end = knife.getSelectionEnd(); 207 | 208 | AlertDialog.Builder builder = new AlertDialog.Builder(this); 209 | builder.setCancelable(false); 210 | 211 | View view = getLayoutInflater().inflate(R.layout.dialog_link, null, false); 212 | final EditText editText = (EditText) view.findViewById(R.id.edit); 213 | builder.setView(view); 214 | builder.setTitle(R.string.dialog_title); 215 | 216 | builder.setPositiveButton(R.string.dialog_button_ok, new DialogInterface.OnClickListener() { 217 | @Override 218 | public void onClick(DialogInterface dialog, int which) { 219 | String link = editText.getText().toString().trim(); 220 | if (TextUtils.isEmpty(link)) { 221 | return; 222 | } 223 | 224 | // When KnifeText lose focus, use this method 225 | knife.link(link, start, end); 226 | } 227 | }); 228 | 229 | builder.setNegativeButton(R.string.dialog_button_cancel, new DialogInterface.OnClickListener() { 230 | @Override 231 | public void onClick(DialogInterface dialog, int which) { 232 | // DO NOTHING HERE 233 | } 234 | }); 235 | 236 | builder.create().show(); 237 | } 238 | 239 | @Override 240 | public boolean onCreateOptionsMenu(Menu menu) { 241 | getMenuInflater().inflate(R.menu.menu_main, menu); 242 | return super.onCreateOptionsMenu(menu); 243 | } 244 | 245 | @Override 246 | public boolean onOptionsItemSelected(MenuItem item) { 247 | switch (item.getItemId()) { 248 | case R.id.undo: 249 | knife.undo(); 250 | break; 251 | case R.id.redo: 252 | knife.redo(); 253 | break; 254 | case R.id.github: 255 | Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(getResources().getString(R.string.app_repo))); 256 | startActivity(intent); 257 | break; 258 | default: 259 | break; 260 | } 261 | 262 | return true; 263 | } 264 | } 265 | -------------------------------------------------------------------------------- /knife/src/main/java/io/github/mthli/knife/KnifeParser.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * Copyright (C) 2007 The Android Open Source Project 4 | * 5 | * Licensed under the Apache License, Version 2.0 (the "License"); 6 | * you may not use this file except in compliance with the License. 7 | * You may obtain a copy of the License at 8 | * 9 | * http://www.apache.org/licenses/LICENSE-2.0 10 | * 11 | * Unless required by applicable law or agreed to in writing, software 12 | * distributed under the License is distributed on an "AS IS" BASIS, 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 | * See the License for the specific language governing permissions and 15 | * limitations under the License. 16 | */ 17 | 18 | package io.github.mthli.knife; 19 | 20 | import android.graphics.Typeface; 21 | import android.text.Html; 22 | import android.text.Spanned; 23 | import android.text.TextUtils; 24 | import android.text.style.BulletSpan; 25 | import android.text.style.CharacterStyle; 26 | import android.text.style.ImageSpan; 27 | import android.text.style.ParagraphStyle; 28 | import android.text.style.QuoteSpan; 29 | import android.text.style.StrikethroughSpan; 30 | import android.text.style.StyleSpan; 31 | import android.text.style.URLSpan; 32 | import android.text.style.UnderlineSpan; 33 | 34 | public class KnifeParser { 35 | public static Spanned fromHtml(String source) { 36 | return Html.fromHtml(source, null, new KnifeTagHandler()); 37 | } 38 | 39 | public static String toHtml(Spanned text) { 40 | StringBuilder out = new StringBuilder(); 41 | withinHtml(out, text); 42 | return tidy(out.toString()); 43 | } 44 | 45 | private static void withinHtml(StringBuilder out, Spanned text) { 46 | int next; 47 | 48 | for (int i = 0; i < text.length(); i = next) { 49 | next = text.nextSpanTransition(i, text.length(), ParagraphStyle.class); 50 | 51 | ParagraphStyle[] styles = text.getSpans(i, next, ParagraphStyle.class); 52 | if (styles.length == 2) { 53 | if (styles[0] instanceof BulletSpan && styles[1] instanceof QuoteSpan) { 54 | // Let a
follow the BulletSpan or QuoteSpan end, so next++ 55 | withinBulletThenQuote(out, text, i, next++); 56 | } else if (styles[0] instanceof QuoteSpan && styles[1] instanceof BulletSpan) { 57 | withinQuoteThenBullet(out, text, i, next++); 58 | } else { 59 | withinContent(out, text, i, next); 60 | } 61 | } else if (styles.length == 1) { 62 | if (styles[0] instanceof BulletSpan) { 63 | withinBullet(out, text, i, next++); 64 | } else if (styles[0] instanceof QuoteSpan) { 65 | withinQuote(out, text, i, next++); 66 | } else { 67 | withinContent(out, text, i, next); 68 | } 69 | } else { 70 | withinContent(out, text, i, next); 71 | } 72 | } 73 | } 74 | 75 | private static void withinBulletThenQuote(StringBuilder out, Spanned text, int start, int end) { 76 | out.append("
  • "); 77 | withinQuote(out, text, start, end); 78 | out.append("
"); 79 | } 80 | 81 | private static void withinQuoteThenBullet(StringBuilder out, Spanned text, int start, int end) { 82 | out.append("
"); 83 | withinBullet(out, text, start, end); 84 | out.append("
"); 85 | } 86 | 87 | private static void withinBullet(StringBuilder out, Spanned text, int start, int end) { 88 | out.append("
    "); 89 | 90 | int next; 91 | 92 | for (int i = start; i < end; i = next) { 93 | next = text.nextSpanTransition(i, end, BulletSpan.class); 94 | 95 | BulletSpan[] spans = text.getSpans(i, next, BulletSpan.class); 96 | for (BulletSpan span : spans) { 97 | out.append("
  • "); 98 | } 99 | 100 | withinContent(out, text, i, next); 101 | for (BulletSpan span : spans) { 102 | out.append("
    • "); 103 | } 104 | } 105 | 106 | out.append("
"); 107 | } 108 | 109 | private static void withinQuote(StringBuilder out, Spanned text, int start, int end) { 110 | int next; 111 | 112 | for (int i = start; i < end; i = next) { 113 | next = text.nextSpanTransition(i, end, QuoteSpan.class); 114 | 115 | QuoteSpan[] quotes = text.getSpans(i, next, QuoteSpan.class); 116 | for (QuoteSpan quote : quotes) { 117 | out.append("
"); 118 | } 119 | 120 | withinContent(out, text, i, next); 121 | for (QuoteSpan quote : quotes) { 122 | out.append("
"); 123 | } 124 | } 125 | } 126 | 127 | private static void withinContent(StringBuilder out, Spanned text, int start, int end) { 128 | int next; 129 | 130 | for (int i = start; i < end; i = next) { 131 | next = TextUtils.indexOf(text, '\n', i, end); 132 | if (next < 0) { 133 | next = end; 134 | } 135 | 136 | int nl = 0; 137 | while (next < end && text.charAt(next) == '\n') { 138 | next++; 139 | nl++; 140 | } 141 | 142 | withinParagraph(out, text, i, next - nl, nl); 143 | } 144 | } 145 | 146 | // Copy from https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/text/Html.java, 147 | // remove some tag because we don't need them in Knife. 148 | private static void withinParagraph(StringBuilder out, Spanned text, int start, int end, int nl) { 149 | int next; 150 | 151 | for (int i = start; i < end; i = next) { 152 | next = text.nextSpanTransition(i, end, CharacterStyle.class); 153 | 154 | CharacterStyle[] spans = text.getSpans(i, next, CharacterStyle.class); 155 | for (int j = 0; j < spans.length; j++) { 156 | if (spans[j] instanceof StyleSpan) { 157 | int style = ((StyleSpan) spans[j]).getStyle(); 158 | 159 | if ((style & Typeface.BOLD) != 0) { 160 | out.append(""); 161 | } 162 | 163 | if ((style & Typeface.ITALIC) != 0) { 164 | out.append(""); 165 | } 166 | } 167 | 168 | if (spans[j] instanceof UnderlineSpan) { 169 | out.append(""); 170 | } 171 | 172 | // Use standard strikethrough tag rather than or 173 | if (spans[j] instanceof StrikethroughSpan) { 174 | out.append(""); 175 | } 176 | 177 | if (spans[j] instanceof URLSpan) { 178 | out.append(""); 181 | } 182 | 183 | if (spans[j] instanceof ImageSpan) { 184 | out.append(""); 187 | 188 | // Don't output the dummy character underlying the image. 189 | i = next; 190 | } 191 | } 192 | 193 | withinStyle(out, text, i, next); 194 | for (int j = spans.length - 1; j >= 0; j--) { 195 | if (spans[j] instanceof URLSpan) { 196 | out.append(""); 197 | } 198 | 199 | if (spans[j] instanceof StrikethroughSpan) { 200 | out.append(""); 201 | } 202 | 203 | if (spans[j] instanceof UnderlineSpan) { 204 | out.append(""); 205 | } 206 | 207 | if (spans[j] instanceof StyleSpan) { 208 | int style = ((StyleSpan) spans[j]).getStyle(); 209 | 210 | if ((style & Typeface.BOLD) != 0) { 211 | out.append(""); 212 | } 213 | 214 | if ((style & Typeface.ITALIC) != 0) { 215 | out.append(""); 216 | } 217 | } 218 | } 219 | } 220 | 221 | for (int i = 0; i < nl; i++) { 222 | out.append("
"); 223 | } 224 | } 225 | 226 | private static void withinStyle(StringBuilder out, CharSequence text, int start, int end) { 227 | for (int i = start; i < end; i++) { 228 | char c = text.charAt(i); 229 | 230 | if (c == '<') { 231 | out.append("<"); 232 | } else if (c == '>') { 233 | out.append(">"); 234 | } else if (c == '&') { 235 | out.append("&"); 236 | } else if (c >= 0xD800 && c <= 0xDFFF) { 237 | if (c < 0xDC00 && i + 1 < end) { 238 | char d = text.charAt(i + 1); 239 | if (d >= 0xDC00 && d <= 0xDFFF) { 240 | i++; 241 | int codepoint = 0x010000 | (int) c - 0xD800 << 10 | (int) d - 0xDC00; 242 | out.append("&#").append(codepoint).append(";"); 243 | } 244 | } 245 | } else if (c > 0x7E || c < ' ') { 246 | out.append("&#").append((int) c).append(";"); 247 | } else if (c == ' ') { 248 | while (i + 1 < end && text.charAt(i + 1) == ' ') { 249 | out.append(" "); 250 | i++; 251 | } 252 | 253 | out.append(' '); 254 | } else { 255 | out.append(c); 256 | } 257 | } 258 | } 259 | 260 | private static String tidy(String html) { 261 | return html.replaceAll("(
)?", "").replaceAll("(
)?", ""); 262 | } 263 | } 264 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright 2015 Matthew Lee 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | 203 | -------------------------------------------------------------------------------- /knife/src/main/java/io/github/mthli/knife/KnifeText.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2015 Matthew Lee 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package io.github.mthli.knife; 18 | 19 | import android.content.Context; 20 | import android.content.res.TypedArray; 21 | import android.graphics.Typeface; 22 | import android.text.Editable; 23 | import android.text.SpannableStringBuilder; 24 | import android.text.Spanned; 25 | import android.text.TextUtils; 26 | import android.text.TextWatcher; 27 | import android.text.style.BulletSpan; 28 | import android.text.style.QuoteSpan; 29 | import android.text.style.StrikethroughSpan; 30 | import android.text.style.StyleSpan; 31 | import android.text.style.URLSpan; 32 | import android.text.style.UnderlineSpan; 33 | import android.util.AttributeSet; 34 | import android.view.inputmethod.InputMethodManager; 35 | import android.widget.EditText; 36 | 37 | import java.util.ArrayList; 38 | import java.util.LinkedList; 39 | import java.util.List; 40 | 41 | public class KnifeText extends EditText implements TextWatcher { 42 | public static final int FORMAT_BOLD = 0x01; 43 | public static final int FORMAT_ITALIC = 0x02; 44 | public static final int FORMAT_UNDERLINED = 0x03; 45 | public static final int FORMAT_STRIKETHROUGH = 0x04; 46 | public static final int FORMAT_BULLET = 0x05; 47 | public static final int FORMAT_QUOTE = 0x06; 48 | public static final int FORMAT_LINK = 0x07; 49 | 50 | private int bulletColor = 0; 51 | private int bulletRadius = 0; 52 | private int bulletGapWidth = 0; 53 | private boolean historyEnable = true; 54 | private int historySize = 100; 55 | private int linkColor = 0; 56 | private boolean linkUnderline = true; 57 | private int quoteColor = 0; 58 | private int quoteStripeWidth = 0; 59 | private int quoteGapWidth = 0; 60 | 61 | private List historyList = new LinkedList<>(); 62 | private boolean historyWorking = false; 63 | private int historyCursor = 0; 64 | 65 | private SpannableStringBuilder inputBefore; 66 | private Editable inputLast; 67 | 68 | public KnifeText(Context context) { 69 | super(context); 70 | init(null); 71 | } 72 | 73 | public KnifeText(Context context, AttributeSet attrs) { 74 | super(context, attrs); 75 | init(attrs); 76 | } 77 | 78 | public KnifeText(Context context, AttributeSet attrs, int defStyleAttr) { 79 | super(context, attrs, defStyleAttr); 80 | init(attrs); 81 | } 82 | 83 | @SuppressWarnings("NewApi") 84 | public KnifeText(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 85 | super(context, attrs, defStyleAttr, defStyleRes); 86 | init(attrs); 87 | } 88 | 89 | private void init(AttributeSet attrs) { 90 | TypedArray array = getContext().obtainStyledAttributes(attrs, R.styleable.KnifeText); 91 | bulletColor = array.getColor(R.styleable.KnifeText_bulletColor, 0); 92 | bulletRadius = array.getDimensionPixelSize(R.styleable.KnifeText_bulletRadius, 0); 93 | bulletGapWidth = array.getDimensionPixelSize(R.styleable.KnifeText_bulletGapWidth, 0); 94 | historyEnable = array.getBoolean(R.styleable.KnifeText_historyEnable, true); 95 | historySize = array.getInt(R.styleable.KnifeText_historySize, 100); 96 | linkColor = array.getColor(R.styleable.KnifeText_linkColor, 0); 97 | linkUnderline = array.getBoolean(R.styleable.KnifeText_linkUnderline, true); 98 | quoteColor = array.getColor(R.styleable.KnifeText_quoteColor, 0); 99 | quoteStripeWidth = array.getDimensionPixelSize(R.styleable.KnifeText_quoteStripeWidth, 0); 100 | quoteGapWidth = array.getDimensionPixelSize(R.styleable.KnifeText_quoteCapWidth, 0); 101 | array.recycle(); 102 | 103 | if (historyEnable && historySize <= 0) { 104 | throw new IllegalArgumentException("historySize must > 0"); 105 | } 106 | } 107 | 108 | @Override 109 | protected void onAttachedToWindow() { 110 | super.onAttachedToWindow(); 111 | 112 | addTextChangedListener(this); 113 | } 114 | 115 | @Override 116 | protected void onDetachedFromWindow() { 117 | super.onDetachedFromWindow(); 118 | removeTextChangedListener(this); 119 | } 120 | 121 | // StyleSpan =================================================================================== 122 | 123 | public void bold(boolean valid) { 124 | if (valid) { 125 | styleValid(Typeface.BOLD, getSelectionStart(), getSelectionEnd()); 126 | } else { 127 | styleInvalid(Typeface.BOLD, getSelectionStart(), getSelectionEnd()); 128 | } 129 | } 130 | 131 | public void italic(boolean valid) { 132 | if (valid) { 133 | styleValid(Typeface.ITALIC, getSelectionStart(), getSelectionEnd()); 134 | } else { 135 | styleInvalid(Typeface.ITALIC, getSelectionStart(), getSelectionEnd()); 136 | } 137 | } 138 | 139 | protected void styleValid(int style, int start, int end) { 140 | switch (style) { 141 | case Typeface.NORMAL: 142 | case Typeface.BOLD: 143 | case Typeface.ITALIC: 144 | case Typeface.BOLD_ITALIC: 145 | break; 146 | default: 147 | return; 148 | } 149 | 150 | if (start >= end) { 151 | return; 152 | } 153 | 154 | getEditableText().setSpan(new StyleSpan(style), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 155 | } 156 | 157 | protected void styleInvalid(int style, int start, int end) { 158 | switch (style) { 159 | case Typeface.NORMAL: 160 | case Typeface.BOLD: 161 | case Typeface.ITALIC: 162 | case Typeface.BOLD_ITALIC: 163 | break; 164 | default: 165 | return; 166 | } 167 | 168 | if (start >= end) { 169 | return; 170 | } 171 | 172 | StyleSpan[] spans = getEditableText().getSpans(start, end, StyleSpan.class); 173 | List list = new ArrayList<>(); 174 | 175 | for (StyleSpan span : spans) { 176 | if (span.getStyle() == style) { 177 | list.add(new KnifePart(getEditableText().getSpanStart(span), getEditableText().getSpanEnd(span))); 178 | getEditableText().removeSpan(span); 179 | } 180 | } 181 | 182 | for (KnifePart part : list) { 183 | if (part.isValid()) { 184 | if (part.getStart() < start) { 185 | styleValid(style, part.getStart(), start); 186 | } 187 | 188 | if (part.getEnd() > end) { 189 | styleValid(style, end, part.getEnd()); 190 | } 191 | } 192 | } 193 | } 194 | 195 | protected boolean containStyle(int style, int start, int end) { 196 | switch (style) { 197 | case Typeface.NORMAL: 198 | case Typeface.BOLD: 199 | case Typeface.ITALIC: 200 | case Typeface.BOLD_ITALIC: 201 | break; 202 | default: 203 | return false; 204 | } 205 | 206 | if (start > end) { 207 | return false; 208 | } 209 | 210 | if (start == end) { 211 | if (start - 1 < 0 || start + 1 > getEditableText().length()) { 212 | return false; 213 | } else { 214 | StyleSpan[] before = getEditableText().getSpans(start - 1, start, StyleSpan.class); 215 | StyleSpan[] after = getEditableText().getSpans(start, start + 1, StyleSpan.class); 216 | return before.length > 0 && after.length > 0 && before[0].getStyle() == style && after[0].getStyle() == style; 217 | } 218 | } else { 219 | StringBuilder builder = new StringBuilder(); 220 | 221 | // Make sure no duplicate characters be added 222 | for (int i = start; i < end; i++) { 223 | StyleSpan[] spans = getEditableText().getSpans(i, i + 1, StyleSpan.class); 224 | for (StyleSpan span : spans) { 225 | if (span.getStyle() == style) { 226 | builder.append(getEditableText().subSequence(i, i + 1).toString()); 227 | break; 228 | } 229 | } 230 | } 231 | 232 | return getEditableText().subSequence(start, end).toString().equals(builder.toString()); 233 | } 234 | } 235 | 236 | // UnderlineSpan =============================================================================== 237 | 238 | public void underline(boolean valid) { 239 | if (valid) { 240 | underlineValid(getSelectionStart(), getSelectionEnd()); 241 | } else { 242 | underlineInvalid(getSelectionStart(), getSelectionEnd()); 243 | } 244 | } 245 | 246 | protected void underlineValid(int start, int end) { 247 | if (start >= end) { 248 | return; 249 | } 250 | 251 | getEditableText().setSpan(new UnderlineSpan(), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 252 | } 253 | 254 | protected void underlineInvalid(int start, int end) { 255 | if (start >= end) { 256 | return; 257 | } 258 | 259 | UnderlineSpan[] spans = getEditableText().getSpans(start, end, UnderlineSpan.class); 260 | List list = new ArrayList<>(); 261 | 262 | for (UnderlineSpan span : spans) { 263 | list.add(new KnifePart(getEditableText().getSpanStart(span), getEditableText().getSpanEnd(span))); 264 | getEditableText().removeSpan(span); 265 | } 266 | 267 | for (KnifePart part : list) { 268 | if (part.isValid()) { 269 | if (part.getStart() < start) { 270 | underlineValid(part.getStart(), start); 271 | } 272 | 273 | if (part.getEnd() > end) { 274 | underlineValid(end, part.getEnd()); 275 | } 276 | } 277 | } 278 | } 279 | 280 | protected boolean containUnderline(int start, int end) { 281 | if (start > end) { 282 | return false; 283 | } 284 | 285 | if (start == end) { 286 | if (start - 1 < 0 || start + 1 > getEditableText().length()) { 287 | return false; 288 | } else { 289 | UnderlineSpan[] before = getEditableText().getSpans(start - 1, start, UnderlineSpan.class); 290 | UnderlineSpan[] after = getEditableText().getSpans(start, start + 1, UnderlineSpan.class); 291 | return before.length > 0 && after.length > 0; 292 | } 293 | } else { 294 | StringBuilder builder = new StringBuilder(); 295 | 296 | for (int i = start; i < end; i++) { 297 | if (getEditableText().getSpans(i, i + 1, UnderlineSpan.class).length > 0) { 298 | builder.append(getEditableText().subSequence(i, i + 1).toString()); 299 | } 300 | } 301 | 302 | return getEditableText().subSequence(start, end).toString().equals(builder.toString()); 303 | } 304 | } 305 | 306 | // StrikethroughSpan =========================================================================== 307 | 308 | public void strikethrough(boolean valid) { 309 | if (valid) { 310 | strikethroughValid(getSelectionStart(), getSelectionEnd()); 311 | } else { 312 | strikethroughInvalid(getSelectionStart(), getSelectionEnd()); 313 | } 314 | } 315 | 316 | protected void strikethroughValid(int start, int end) { 317 | if (start >= end) { 318 | return; 319 | } 320 | 321 | getEditableText().setSpan(new StrikethroughSpan(), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 322 | } 323 | 324 | protected void strikethroughInvalid(int start, int end) { 325 | if (start >= end) { 326 | return; 327 | } 328 | 329 | StrikethroughSpan[] spans = getEditableText().getSpans(start, end, StrikethroughSpan.class); 330 | List list = new ArrayList<>(); 331 | 332 | for (StrikethroughSpan span : spans) { 333 | list.add(new KnifePart(getEditableText().getSpanStart(span), getEditableText().getSpanEnd(span))); 334 | getEditableText().removeSpan(span); 335 | } 336 | 337 | for (KnifePart part : list) { 338 | if (part.isValid()) { 339 | if (part.getStart() < start) { 340 | strikethroughValid(part.getStart(), start); 341 | } 342 | 343 | if (part.getEnd() > end) { 344 | strikethroughValid(end, part.getEnd()); 345 | } 346 | } 347 | } 348 | } 349 | 350 | protected boolean containStrikethrough(int start, int end) { 351 | if (start > end) { 352 | return false; 353 | } 354 | 355 | if (start == end) { 356 | if (start - 1 < 0 || start + 1 > getEditableText().length()) { 357 | return false; 358 | } else { 359 | StrikethroughSpan[] before = getEditableText().getSpans(start - 1, start, StrikethroughSpan.class); 360 | StrikethroughSpan[] after = getEditableText().getSpans(start, start + 1, StrikethroughSpan.class); 361 | return before.length > 0 && after.length > 0; 362 | } 363 | } else { 364 | StringBuilder builder = new StringBuilder(); 365 | 366 | for (int i = start; i < end; i++) { 367 | if (getEditableText().getSpans(i, i + 1, StrikethroughSpan.class).length > 0) { 368 | builder.append(getEditableText().subSequence(i, i + 1).toString()); 369 | } 370 | } 371 | 372 | return getEditableText().subSequence(start, end).toString().equals(builder.toString()); 373 | } 374 | } 375 | 376 | // BulletSpan ================================================================================== 377 | 378 | public void bullet(boolean valid) { 379 | if (valid) { 380 | bulletValid(); 381 | } else { 382 | bulletInvalid(); 383 | } 384 | } 385 | 386 | protected void bulletValid() { 387 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 388 | 389 | for (int i = 0; i < lines.length; i++) { 390 | if (containBullet(i)) { 391 | continue; 392 | } 393 | 394 | int lineStart = 0; 395 | for (int j = 0; j < i; j++) { 396 | lineStart = lineStart + lines[j].length() + 1; // \n 397 | } 398 | 399 | int lineEnd = lineStart + lines[i].length(); 400 | if (lineStart >= lineEnd) { 401 | continue; 402 | } 403 | 404 | // Find selection area inside 405 | int bulletStart = 0; 406 | int bulletEnd = 0; 407 | if (lineStart <= getSelectionStart() && getSelectionEnd() <= lineEnd) { 408 | bulletStart = lineStart; 409 | bulletEnd = lineEnd; 410 | } else if (getSelectionStart() <= lineStart && lineEnd <= getSelectionEnd()) { 411 | bulletStart = lineStart; 412 | bulletEnd = lineEnd; 413 | } 414 | 415 | if (bulletStart < bulletEnd) { 416 | getEditableText().setSpan(new KnifeBulletSpan(bulletColor, bulletRadius, bulletGapWidth), bulletStart, bulletEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 417 | } 418 | } 419 | } 420 | 421 | protected void bulletInvalid() { 422 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 423 | 424 | for (int i = 0; i < lines.length; i++) { 425 | if (!containBullet(i)) { 426 | continue; 427 | } 428 | 429 | int lineStart = 0; 430 | for (int j = 0; j < i; j++) { 431 | lineStart = lineStart + lines[j].length() + 1; 432 | } 433 | 434 | int lineEnd = lineStart + lines[i].length(); 435 | if (lineStart >= lineEnd) { 436 | continue; 437 | } 438 | 439 | int bulletStart = 0; 440 | int bulletEnd = 0; 441 | if (lineStart <= getSelectionStart() && getSelectionEnd() <= lineEnd) { 442 | bulletStart = lineStart; 443 | bulletEnd = lineEnd; 444 | } else if (getSelectionStart() <= lineStart && lineEnd <= getSelectionEnd()) { 445 | bulletStart = lineStart; 446 | bulletEnd = lineEnd; 447 | } 448 | 449 | if (bulletStart < bulletEnd) { 450 | BulletSpan[] spans = getEditableText().getSpans(bulletStart, bulletEnd, BulletSpan.class); 451 | for (BulletSpan span : spans) { 452 | getEditableText().removeSpan(span); 453 | } 454 | } 455 | } 456 | } 457 | 458 | protected boolean containBullet() { 459 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 460 | List list = new ArrayList<>(); 461 | 462 | for (int i = 0; i < lines.length; i++) { 463 | int lineStart = 0; 464 | for (int j = 0; j < i; j++) { 465 | lineStart = lineStart + lines[j].length() + 1; 466 | } 467 | 468 | int lineEnd = lineStart + lines[i].length(); 469 | if (lineStart >= lineEnd) { 470 | continue; 471 | } 472 | 473 | if (lineStart <= getSelectionStart() && getSelectionEnd() <= lineEnd) { 474 | list.add(i); 475 | } else if (getSelectionStart() <= lineStart && lineEnd <= getSelectionEnd()) { 476 | list.add(i); 477 | } 478 | } 479 | 480 | for (Integer i : list) { 481 | if (!containBullet(i)) { 482 | return false; 483 | } 484 | } 485 | 486 | return true; 487 | } 488 | 489 | protected boolean containBullet(int index) { 490 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 491 | if (index < 0 || index >= lines.length) { 492 | return false; 493 | } 494 | 495 | int start = 0; 496 | for (int i = 0; i < index; i++) { 497 | start = start + lines[i].length() + 1; 498 | } 499 | 500 | int end = start + lines[index].length(); 501 | if (start >= end) { 502 | return false; 503 | } 504 | 505 | BulletSpan[] spans = getEditableText().getSpans(start, end, BulletSpan.class); 506 | return spans.length > 0; 507 | } 508 | 509 | // QuoteSpan =================================================================================== 510 | 511 | public void quote(boolean valid) { 512 | if (valid) { 513 | quoteValid(); 514 | } else { 515 | quoteInvalid(); 516 | } 517 | } 518 | 519 | protected void quoteValid() { 520 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 521 | 522 | for (int i = 0; i < lines.length; i++) { 523 | if (containQuote(i)) { 524 | continue; 525 | } 526 | 527 | int lineStart = 0; 528 | for (int j = 0; j < i; j++) { 529 | lineStart = lineStart + lines[j].length() + 1; // \n 530 | } 531 | 532 | int lineEnd = lineStart + lines[i].length(); 533 | if (lineStart >= lineEnd) { 534 | continue; 535 | } 536 | 537 | int quoteStart = 0; 538 | int quoteEnd = 0; 539 | if (lineStart <= getSelectionStart() && getSelectionEnd() <= lineEnd) { 540 | quoteStart = lineStart; 541 | quoteEnd = lineEnd; 542 | } else if (getSelectionStart() <= lineStart && lineEnd <= getSelectionEnd()) { 543 | quoteStart = lineStart; 544 | quoteEnd = lineEnd; 545 | } 546 | 547 | if (quoteStart < quoteEnd) { 548 | getEditableText().setSpan(new KnifeQuoteSpan(quoteColor, quoteStripeWidth, quoteGapWidth), quoteStart, quoteEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 549 | } 550 | } 551 | } 552 | 553 | protected void quoteInvalid() { 554 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 555 | 556 | for (int i = 0; i < lines.length; i++) { 557 | if (!containQuote(i)) { 558 | continue; 559 | } 560 | 561 | int lineStart = 0; 562 | for (int j = 0; j < i; j++) { 563 | lineStart = lineStart + lines[j].length() + 1; 564 | } 565 | 566 | int lineEnd = lineStart + lines[i].length(); 567 | if (lineStart >= lineEnd) { 568 | continue; 569 | } 570 | 571 | int quoteStart = 0; 572 | int quoteEnd = 0; 573 | if (lineStart <= getSelectionStart() && getSelectionEnd() <= lineEnd) { 574 | quoteStart = lineStart; 575 | quoteEnd = lineEnd; 576 | } else if (getSelectionStart() <= lineStart && lineEnd <= getSelectionEnd()) { 577 | quoteStart = lineStart; 578 | quoteEnd = lineEnd; 579 | } 580 | 581 | if (quoteStart < quoteEnd) { 582 | QuoteSpan[] spans = getEditableText().getSpans(quoteStart, quoteEnd, QuoteSpan.class); 583 | for (QuoteSpan span : spans) { 584 | getEditableText().removeSpan(span); 585 | } 586 | } 587 | } 588 | } 589 | 590 | protected boolean containQuote() { 591 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 592 | List list = new ArrayList<>(); 593 | 594 | for (int i = 0; i < lines.length; i++) { 595 | int lineStart = 0; 596 | for (int j = 0; j < i; j++) { 597 | lineStart = lineStart + lines[j].length() + 1; 598 | } 599 | 600 | int lineEnd = lineStart + lines[i].length(); 601 | if (lineStart >= lineEnd) { 602 | continue; 603 | } 604 | 605 | if (lineStart <= getSelectionStart() && getSelectionEnd() <= lineEnd) { 606 | list.add(i); 607 | } else if (getSelectionStart() <= lineStart && lineEnd <= getSelectionEnd()) { 608 | list.add(i); 609 | } 610 | } 611 | 612 | for (Integer i : list) { 613 | if (!containQuote(i)) { 614 | return false; 615 | } 616 | } 617 | 618 | return true; 619 | } 620 | 621 | protected boolean containQuote(int index) { 622 | String[] lines = TextUtils.split(getEditableText().toString(), "\n"); 623 | if (index < 0 || index >= lines.length) { 624 | return false; 625 | } 626 | 627 | int start = 0; 628 | for (int i = 0; i < index; i++) { 629 | start = start + lines[i].length() + 1; 630 | } 631 | 632 | int end = start + lines[index].length(); 633 | if (start >= end) { 634 | return false; 635 | } 636 | 637 | QuoteSpan[] spans = getEditableText().getSpans(start, end, QuoteSpan.class); 638 | return spans.length > 0; 639 | } 640 | 641 | // URLSpan ===================================================================================== 642 | 643 | public void link(String link) { 644 | link(link, getSelectionStart(), getSelectionEnd()); 645 | } 646 | 647 | // When KnifeText lose focus, use this method 648 | public void link(String link, int start, int end) { 649 | if (link != null && !TextUtils.isEmpty(link.trim())) { 650 | linkValid(link, start, end); 651 | } else { 652 | linkInvalid(start, end); 653 | } 654 | } 655 | 656 | protected void linkValid(String link, int start, int end) { 657 | if (start >= end) { 658 | return; 659 | } 660 | 661 | linkInvalid(start, end); 662 | getEditableText().setSpan(new KnifeURLSpan(link, linkColor, linkUnderline), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 663 | } 664 | 665 | // Remove all span in selection, not like the boldInvalid() 666 | protected void linkInvalid(int start, int end) { 667 | if (start >= end) { 668 | return; 669 | } 670 | 671 | URLSpan[] spans = getEditableText().getSpans(start, end, URLSpan.class); 672 | for (URLSpan span : spans) { 673 | getEditableText().removeSpan(span); 674 | } 675 | } 676 | 677 | protected boolean containLink(int start, int end) { 678 | if (start > end) { 679 | return false; 680 | } 681 | 682 | if (start == end) { 683 | if (start - 1 < 0 || start + 1 > getEditableText().length()) { 684 | return false; 685 | } else { 686 | URLSpan[] before = getEditableText().getSpans(start - 1, start, URLSpan.class); 687 | URLSpan[] after = getEditableText().getSpans(start, start + 1, URLSpan.class); 688 | return before.length > 0 && after.length > 0; 689 | } 690 | } else { 691 | StringBuilder builder = new StringBuilder(); 692 | 693 | for (int i = start; i < end; i++) { 694 | if (getEditableText().getSpans(i, i + 1, URLSpan.class).length > 0) { 695 | builder.append(getEditableText().subSequence(i, i + 1).toString()); 696 | } 697 | } 698 | 699 | return getEditableText().subSequence(start, end).toString().equals(builder.toString()); 700 | } 701 | } 702 | 703 | // Redo/Undo =================================================================================== 704 | 705 | @Override 706 | public void beforeTextChanged(CharSequence text, int start, int count, int after) { 707 | if (!historyEnable || historyWorking) { 708 | return; 709 | } 710 | 711 | inputBefore = new SpannableStringBuilder(text); 712 | } 713 | 714 | @Override 715 | public void onTextChanged(CharSequence text, int start, int before, int count) { 716 | // DO NOTHING HERE 717 | } 718 | 719 | @Override 720 | public void afterTextChanged(Editable text) { 721 | if (!historyEnable || historyWorking) { 722 | return; 723 | } 724 | 725 | inputLast = new SpannableStringBuilder(text); 726 | if (text != null && text.toString().equals(inputBefore.toString())) { 727 | return; 728 | } 729 | 730 | if (historyList.size() >= historySize) { 731 | historyList.remove(0); 732 | } 733 | 734 | historyList.add(inputBefore); 735 | historyCursor = historyList.size(); 736 | } 737 | 738 | public void redo() { 739 | if (!redoValid()) { 740 | return; 741 | } 742 | 743 | historyWorking = true; 744 | 745 | if (historyCursor >= historyList.size() - 1) { 746 | historyCursor = historyList.size(); 747 | setText(inputLast); 748 | } else { 749 | historyCursor++; 750 | setText(historyList.get(historyCursor)); 751 | } 752 | 753 | setSelection(getEditableText().length()); 754 | historyWorking = false; 755 | } 756 | 757 | public void undo() { 758 | if (!undoValid()) { 759 | return; 760 | } 761 | 762 | historyWorking = true; 763 | 764 | historyCursor--; 765 | setText(historyList.get(historyCursor)); 766 | setSelection(getEditableText().length()); 767 | 768 | historyWorking = false; 769 | } 770 | 771 | public boolean redoValid() { 772 | if (!historyEnable || historySize <= 0 || historyList.size() <= 0 || historyWorking) { 773 | return false; 774 | } 775 | 776 | return historyCursor < historyList.size() - 1 || historyCursor >= historyList.size() - 1 && inputLast != null; 777 | } 778 | 779 | public boolean undoValid() { 780 | if (!historyEnable || historySize <= 0 || historyWorking) { 781 | return false; 782 | } 783 | 784 | if (historyList.size() <= 0 || historyCursor <= 0) { 785 | return false; 786 | } 787 | 788 | return true; 789 | } 790 | 791 | public void clearHistory() { 792 | if (historyList != null) { 793 | historyList.clear(); 794 | } 795 | } 796 | 797 | // Helper ====================================================================================== 798 | 799 | public boolean contains(int format) { 800 | switch (format) { 801 | case FORMAT_BOLD: 802 | return containStyle(Typeface.BOLD, getSelectionStart(), getSelectionEnd()); 803 | case FORMAT_ITALIC: 804 | return containStyle(Typeface.ITALIC, getSelectionStart(), getSelectionEnd()); 805 | case FORMAT_UNDERLINED: 806 | return containUnderline(getSelectionStart(), getSelectionEnd()); 807 | case FORMAT_STRIKETHROUGH: 808 | return containStrikethrough(getSelectionStart(), getSelectionEnd()); 809 | case FORMAT_BULLET: 810 | return containBullet(); 811 | case FORMAT_QUOTE: 812 | return containQuote(); 813 | case FORMAT_LINK: 814 | return containLink(getSelectionStart(), getSelectionEnd()); 815 | default: 816 | return false; 817 | } 818 | } 819 | 820 | public void clearFormats() { 821 | setText(getEditableText().toString()); 822 | setSelection(getEditableText().length()); 823 | } 824 | 825 | public void hideSoftInput() { 826 | clearFocus(); 827 | InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 828 | imm.hideSoftInputFromWindow(getWindowToken(), 0); 829 | } 830 | 831 | public void showSoftInput() { 832 | requestFocus(); 833 | InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 834 | imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); 835 | } 836 | 837 | public void fromHtml(String source) { 838 | SpannableStringBuilder builder = new SpannableStringBuilder(); 839 | builder.append(KnifeParser.fromHtml(source)); 840 | switchToKnifeStyle(builder, 0, builder.length()); 841 | setText(builder); 842 | } 843 | 844 | public String toHtml() { 845 | return KnifeParser.toHtml(getEditableText()); 846 | } 847 | 848 | protected void switchToKnifeStyle(Editable editable, int start, int end) { 849 | BulletSpan[] bulletSpans = editable.getSpans(start, end, BulletSpan.class); 850 | for (BulletSpan span : bulletSpans) { 851 | int spanStart = editable.getSpanStart(span); 852 | int spanEnd = editable.getSpanEnd(span); 853 | spanEnd = 0 < spanEnd && spanEnd < editable.length() && editable.charAt(spanEnd) == '\n' ? spanEnd - 1 : spanEnd; 854 | editable.removeSpan(span); 855 | editable.setSpan(new KnifeBulletSpan(bulletColor, bulletRadius, bulletGapWidth), spanStart, spanEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 856 | } 857 | 858 | QuoteSpan[] quoteSpans = editable.getSpans(start, end, QuoteSpan.class); 859 | for (QuoteSpan span : quoteSpans) { 860 | int spanStart = editable.getSpanStart(span); 861 | int spanEnd = editable.getSpanEnd(span); 862 | spanEnd = 0 < spanEnd && spanEnd < editable.length() && editable.charAt(spanEnd) == '\n' ? spanEnd - 1 : spanEnd; 863 | editable.removeSpan(span); 864 | editable.setSpan(new KnifeQuoteSpan(quoteColor, quoteStripeWidth, quoteGapWidth), spanStart, spanEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 865 | } 866 | 867 | URLSpan[] urlSpans = editable.getSpans(start, end, URLSpan.class); 868 | for (URLSpan span : urlSpans) { 869 | int spanStart = editable.getSpanStart(span); 870 | int spanEnd = editable.getSpanEnd(span); 871 | editable.removeSpan(span); 872 | editable.setSpan(new KnifeURLSpan(span.getURL(), linkColor, linkUnderline), spanStart, spanEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 873 | } 874 | } 875 | } 876 | --------------------------------------------------------------------------------