preparing for markdown editor

2025-12-08 19:05:54 +00:00 · 2019-07-22 19:08:55 +02:00 · 2019-07-22 19:08:55 +02:00 · efe7a89714
commit efe7a89714
parent fa0f19cb21
5 changed files with 553 additions and 12 deletions
--- a/app/src/main/java/com/fastaccess/github/di/modules/FragmentModule.kt
+++ b/app/src/main/java/com/fastaccess/github/di/modules/FragmentModule.kt
@ -2,6 +2,7 @@ package com.fastaccess.github.di.modules

 import android.annotation.SuppressLint
 import android.content.Context
+import android.text.util.Linkify
 import com.fastaccess.data.storage.FastHubSharedPreference
 import com.fastaccess.github.R
 import com.fastaccess.github.base.engine.ThemeEngine
@ -47,7 +48,7 @@ class FragmentModule {
        .usePlugin(GlideImagesPlugin.create(context))
        .usePlugin(TablePlugin.create(context))
        .usePlugin(StrikethroughPlugin.create())
-        .usePlugin(LinkifyPlugin.create())
+        .usePlugin(LinkifyPlugin.create(Linkify.EMAIL_ADDRESSES or Linkify.WEB_URLS))
        .usePlugin(
            SyntaxHighlightPlugin.create(
                Prism4j(GrammarLocatorDef()), if (ThemeEngine.isLightTheme(preference.theme)) {
--- a/markdown/build.gradle
+++ b/markdown/build.gradle
@ -1,5 +1,6 @@
 apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'

 android {
--- a/markdown/src/main/java/com/fastaccess/markdown/MarkdownProvider.kt
+++ b/markdown/src/main/java/com/fastaccess/markdown/MarkdownProvider.kt
@ -1,5 +1,7 @@
 package com.fastaccess.markdown

+import android.webkit.MimeTypeMap
+import android.widget.EditText
 import android.widget.TextView
 import androidx.core.text.HtmlCompat
 import androidx.core.view.doOnPreDraw
@ -15,17 +17,14 @@ import org.commonmark.renderer.html.HtmlRenderer
@PrismBundle(includeAll = true)
 object MarkdownProvider {

-    private const val TOGGLE_START = "<span class=\"email-hidden-toggle\">"
-    private const val TOGGLE_END = "</span>"
-    private const val REPLY_START = "<div class=\"email-quoted-reply\">"
-    private const val REPLY_END = "</div>"
-    private const val SIGNATURE_START = "<div class=\"email-signature-reply\">"
-    private const val SIGNATURE_END = "</div>"
-    private const val HIDDEN_REPLY_START = "<div class=\"email-hidden-reply\" style=\" display:none\">"
-    private const val HIDDEN_REPLY_END = "</div>"
-    private const val BREAK = "<br>"
-    private const val PARAGRAPH_START = "<p>"
-    private const val PARAGRAPH_END = "</p>"
+    private val IMAGE_EXTENSIONS = arrayOf(".png", ".jpg", ".jpeg", ".gif", ".svg")
+
+    private val MARKDOWN_EXTENSIONS = arrayOf(".md", ".mkdn", ".mdwn", ".mdown", ".markdown", ".mkd", ".mkdown", ".ron", ".rst", "adoc")
+
+    private val ARCHIVE_EXTENSIONS = arrayOf(
+        ".zip", ".7z", ".rar", ".tar.gz", ".tgz", ".tar.Z", ".tar.bz2", ".tbz2", ".tar.lzma", ".tlz", ".apk", ".jar", ".dmg", ".pdf", ".ico", ".docx",
+        ".doc", ".xlsx", ".hwp", ".pptx", ".show", ".mp3", ".ogg", ".ipynb"
+    )

    fun loadIntoTextView(
        markwon: Markwon,
@ -64,4 +63,244 @@ object MarkdownProvider {
    ) {
        markwon.setMarkdown(textView, html)
    }
+
+    fun addList(
+        editText: EditText,
+        list: String
+    ) {
+        val tag = "$list "
+        val source = editText.text.toString()
+        var selectionStart = editText.selectionStart
+        val selectionEnd = editText.selectionEnd
+        var substring = source.substring(0, selectionStart)
+        val line = substring.lastIndexOf(char = 10.toChar())
+        if (line != -1) {
+            selectionStart = line + 1
+        } else {
+            selectionStart = 0
+        }
+        substring = source.substring(selectionStart, selectionEnd)
+        val split = substring.split("\n".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
+        val stringBuffer = StringBuilder()
+        if (split.isNotEmpty())
+            for (s in split) {
+                if (s.isEmpty() && stringBuffer.isNotEmpty()) {
+                    stringBuffer.append("\n")
+                    continue
+                }
+                if (!s.trim { it <= ' ' }.startsWith(tag)) {
+                    if (stringBuffer.isNotEmpty()) stringBuffer.append("\n")
+                    stringBuffer.append(tag).append(s)
+                } else {
+                    if (stringBuffer.isNotEmpty()) stringBuffer.append("\n")
+                    stringBuffer.append(s)
+                }
+            }
+
+        if (stringBuffer.isEmpty()) {
+            stringBuffer.append(tag)
+        }
+        editText.text.replace(selectionStart, selectionEnd, stringBuffer.toString())
+        editText.setSelection(stringBuffer.length + selectionStart)
+    }
+
+    fun addHeader(
+        editText: EditText,
+        level: Int
+    ) {
+        val source = editText.text.toString()
+        val selectionStart = editText.selectionStart
+        val selectionEnd = editText.selectionEnd
+        val result = StringBuilder()
+        val substring = source.substring(selectionStart, selectionEnd)
+        if (!hasNewLine(source, selectionStart)) result.append("\n")
+        for (i in 0..level) result.append("#")
+        result.append(" ").append(substring)
+        editText.text.replace(selectionStart, selectionEnd, result.toString())
+        editText.setSelection(selectionStart + result.length)
+
+    }
+
+    fun addItalic(editText: EditText) {
+        val source = editText.text.toString()
+        val selectionStart = editText.selectionStart
+        val selectionEnd = editText.selectionEnd
+        val substring = source.substring(selectionStart, selectionEnd)
+        val result = "_" + substring + "_ "
+        editText.text.replace(selectionStart, selectionEnd, result)
+        editText.setSelection(result.length + selectionStart - 2)
+
+    }
+
+    fun addBold(editText: EditText) {
+        val source = editText.text.toString()
+        val selectionStart = editText.selectionStart
+        val selectionEnd = editText.selectionEnd
+        val substring = source.substring(selectionStart, selectionEnd)
+        val result = "**$substring** "
+        editText.text.replace(selectionStart, selectionEnd, result)
+        editText.setSelection(result.length + selectionStart - 3)
+
+    }
+
+    fun addCode(editText: EditText) {
+        try {
+            val source = editText.text.toString()
+            val selectionStart = editText.selectionStart
+            val selectionEnd = editText.selectionEnd
+            val substring = source.substring(selectionStart, selectionEnd)
+            val result: String
+            result = if (hasNewLine(source, selectionStart))
+                "```\n$substring\n```\n"
+            else
+                "\n```\n$substring\n```\n"
+
+            editText.text.replace(selectionStart, selectionEnd, result)
+            editText.setSelection(result.length + selectionStart - 5)
+
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+
+    }
+
+    fun addInlinleCode(editText: EditText) {
+        val source = editText.text.toString()
+        val selectionStart = editText.selectionStart
+        val selectionEnd = editText.selectionEnd
+        val substring = source.substring(selectionStart, selectionEnd)
+        val result = "`$substring` "
+        editText.text.replace(selectionStart, selectionEnd, result)
+        editText.setSelection(result.length + selectionStart - 2)
+
+    }
+
+    fun addStrikeThrough(editText: EditText) {
+        val source = editText.text.toString()
+        val selectionStart = editText.selectionStart
+        val selectionEnd = editText.selectionEnd
+        val substring = source.substring(selectionStart, selectionEnd)
+        val result = "~~$substring~~ "
+        editText.text.replace(selectionStart, selectionEnd, result)
+        editText.setSelection(result.length + selectionStart - 3)
+
+    }
+
+    fun addQuote(editText: EditText) {
+        val source = editText.text.toString()
+        val selectionStart = editText.selectionStart
+        val selectionEnd = editText.selectionEnd
+        val substring = source.substring(selectionStart, selectionEnd)
+        val result: String
+        result = if (hasNewLine(source, selectionStart)) {
+            "> $substring"
+        } else {
+            "\n> $substring"
+
+        }
+        editText.text.replace(selectionStart, selectionEnd, result)
+        editText.setSelection(result.length + selectionStart)
+
+    }
+
+    fun addDivider(editText: EditText) {
+        val source = editText.text.toString()
+        val selectionStart = editText.selectionStart
+        val result: String
+        result = if (hasNewLine(source, selectionStart)) {
+            "-------\n"
+        } else {
+            "\n-------\n"
+        }
+        editText.text.replace(selectionStart, selectionStart, result)
+        editText.setSelection(result.length + selectionStart)
+
+    }
+
+    fun addPhoto(
+        editText: EditText,
+        title: String,
+        link: String
+    ) {
+        val result = "![$title]($link)"
+        insertAtCursor(editText, result)
+    }
+
+    fun addLink(
+        editText: EditText,
+        title: String,
+        link: String
+    ) {
+        val result = "[$title]($link)"
+        insertAtCursor(editText, result)
+    }
+
+    private fun hasNewLine(
+        source: String,
+        selectionStart: Int
+    ): Boolean {
+        var _source = source
+        try {
+            if (_source.isEmpty()) return true
+            _source = _source.substring(0, selectionStart)
+            return _source[_source.length - 1].toInt() == 10
+        } catch (e: StringIndexOutOfBoundsException) {
+            return false
+        }
+    }
+
+    fun isImage(name: String?): Boolean {
+        var name = name
+        if (name.isNullOrEmpty()) return false
+        name = name.toLowerCase()
+        for (value in IMAGE_EXTENSIONS) {
+            val extension = MimeTypeMap.getFileExtensionFromUrl(name)
+            if (extension != null && value.replace(".", "") == extension || name.endsWith(value)) return true
+        }
+        return false
+    }
+
+    fun isMarkdown(name: String?): Boolean {
+        var _name = name
+        if (_name.isNullOrEmpty()) return false
+        _name = _name.toLowerCase()
+        for (value in MARKDOWN_EXTENSIONS) {
+            val extension = MimeTypeMap.getFileExtensionFromUrl(_name)
+            if (extension != null && value.replace(".", "") == extension ||
+                _name.equals("README", ignoreCase = true) || _name.endsWith(value)
+            )
+                return true
+        }
+        return false
+    }
+
+    fun isArchive(name: String?): Boolean {
+        var _name = name
+        if (_name.isNullOrEmpty()) return false
+        _name = _name.toLowerCase()
+        for (value in ARCHIVE_EXTENSIONS) {
+            val extension = MimeTypeMap.getFileExtensionFromUrl(_name)
+            if (extension != null && value.replace(".", "") == extension || _name.endsWith(value)) return true
+        }
+
+        return false
+    }
+
+    fun insertAtCursor(
+        editText: EditText,
+        text: String
+    ) {
+        val oriContent = editText.text.toString()
+        val start = editText.selectionStart
+        val end = editText.selectionEnd
+        if (start >= 0 && end > 0 && start != end) {
+            editText.text = editText.text.replace(start, end, text)
+        } else {
+            val index = if (editText.selectionStart >= 0) editText.selectionStart else 0
+            val builder = StringBuilder(oriContent)
+            builder.insert(index, text)
+            editText.setText(builder.toString())
+            editText.setSelection(index + text.length)
+        }
+    }
 }
--- a/markdown/src/main/java/com/fastaccess/markdown/widget/MarkdownLayout.kt
+++ b/markdown/src/main/java/com/fastaccess/markdown/widget/MarkdownLayout.kt
@ -0,0 +1,86 @@
+package com.fastaccess.markdown.widget
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.View
+import android.widget.EditText
+import android.widget.LinearLayout
+import com.fastaccess.markdown.MarkdownProvider
+import com.fastaccess.markdown.R
+import kotlinx.android.synthetic.main.markdown_buttons_layout.view.*
+
+/**
+ * Created by Kosh on 2019-07-22.
+ */
+class MarkdownLayout : LinearLayout, View.OnClickListener {
+
+    private lateinit var editText: EditText
+
+    constructor(context: Context?) : super(context)
+    constructor(
+        context: Context?,
+        attrs: AttributeSet?
+    ) : super(context, attrs)
+
+    constructor(
+        context: Context?,
+        attrs: AttributeSet?,
+        defStyleAttr: Int
+    ) : super(context, attrs, defStyleAttr)
+
+    override fun onFinishInflate() {
+        super.onFinishInflate()
+        orientation = HORIZONTAL
+        View.inflate(context, R.layout.markdown_buttons_layout, this)
+        if (isInEditMode) return
+    }
+
+    fun init(editText: EditText) {
+        this.editText = editText
+        headerOne.setOnClickListener(this)
+        headerTwo.setOnClickListener(this)
+        headerThree.setOnClickListener(this)
+        bold.setOnClickListener(this)
+        italic.setOnClickListener(this)
+        strikethrough.setOnClickListener(this)
+        bullet.setOnClickListener(this)
+        header.setOnClickListener(this)
+        code.setOnClickListener(this)
+        numbered.setOnClickListener(this)
+        quote.setOnClickListener(this)
+        link.setOnClickListener(this)
+        image.setOnClickListener(this)
+        unCheckbox.setOnClickListener(this)
+        checkbox.setOnClickListener(this)
+        inlineCode.setOnClickListener(this)
+        addEmoji.setOnClickListener(this)
+        signature.setOnClickListener(this)
+
+    }
+
+    override fun onClick(v: View?) {
+        if (editText.selectionEnd == -1 || editText.selectionStart == -1) {
+            return
+        }
+        v?.let {
+            when (it.id) {
+                R.id.headerOne -> MarkdownProvider.addHeader(editText, 1)
+                R.id.headerTwo -> MarkdownProvider.addHeader(editText, 2)
+                R.id.headerThree -> MarkdownProvider.addHeader(editText, 3)
+                R.id.bold -> MarkdownProvider.addBold(editText)
+                R.id.italic -> MarkdownProvider.addItalic(editText)
+                R.id.strikethrough -> MarkdownProvider.addStrikeThrough(editText)
+                R.id.bullet -> MarkdownProvider.addList(editText, "-")
+                R.id.header -> MarkdownProvider.addDivider(editText)
+                R.id.code -> MarkdownProvider.addCode(editText)
+                R.id.numbered -> MarkdownProvider.addList(editText, "1")
+                R.id.quote -> MarkdownProvider.addQuote(editText)
+                R.id.link -> MarkdownProvider.addLink(editText, "", "")
+                R.id.image -> MarkdownProvider.addPhoto(editText, "", "")
+                R.id.unCheckbox -> MarkdownProvider.addList(editText, "- [x]")
+                R.id.checkbox -> MarkdownProvider.addList(editText, "- [ ]")
+                R.id.inlineCode -> MarkdownProvider.addInlinleCode(editText)
+            }
+        }
+    }
+}
--- a/markdown/src/main/res/layout/markdown_buttons_layout.xml
+++ b/markdown/src/main/res/layout/markdown_buttons_layout.xml
@ -0,0 +1,214 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <HorizontalScrollView
+        android:id="@+id/editorIconsHolder"
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:fadeScrollbars="true"
+        android:scrollbarFadeDuration="500"
+        android:scrollbarSize="1dp"
+        android:scrollbarStyle="outsideOverlay">
+
+        <LinearLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="start|center"
+            android:gravity="center"
+            android:orientation="horizontal">
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/headerOne"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/header_one"
+                android:padding="@dimen/spacing_normal"
+                android:src="@drawable/ic_header_one" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/headerTwo"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/header_two"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_header_two" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/headerThree"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/header_three"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_header_three" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/bold"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/bold"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_format_bold" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/italic"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/italic"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_format_italic" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/strikethrough"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/strike_through"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_format_strikethrough" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/bullet"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/bullet"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_format_list_bulleted" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/numbered"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/numbered_list"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_list_numbers" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/checkbox"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/todo_checked"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_checkbox" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/unCheckbox"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/todo_unchecked"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_checkbox_empty" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/header"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/divider"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_minus" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/inlineCode"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/code"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_inline_code" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/code"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/code"
+                android:padding="@dimen/spacing_normal"
+                android:src="@drawable/ic_code" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/quote"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/quote"
+                android:padding="@dimen/spacing_normal"
+
+                android:src="@drawable/ic_format_quote" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/link"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/link"
+                android:padding="@dimen/spacing_micro"
+
+                android:src="@drawable/ic_insert_link" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/image"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/image"
+                android:padding="@dimen/spacing_normal"
+                android:src="@drawable/ic_image" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/signature"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="?selectableItemBackgroundBorderless"
+                android:contentDescription="@string/app_name"
+                android:padding="@dimen/spacing_normal"
+                android:src="@drawable/ic_fasthub_mascot" />
+        </LinearLayout>
+
+    </HorizontalScrollView>
+
+    <View
+        android:layout_width="1dp"
+        android:layout_height="match_parent"
+        android:background="?dividerColor" />
+
+    <androidx.appcompat.widget.AppCompatImageView
+        android:id="@+id/addEmoji"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="end|center"
+        android:background="?selectableItemBackgroundBorderless"
+        android:contentDescription="@string/reactions"
+        android:padding="@dimen/spacing_normal"
+        android:src="@drawable/ic_add_emoji" />
+
+    <androidx.appcompat.widget.AppCompatImageView
+        android:id="@+id/view"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="end|center"
+        android:background="?selectableItemBackgroundBorderless"
+        android:contentDescription="@string/preview"
+        android:padding="@dimen/spacing_normal"
+        android:src="@drawable/ic_eye" />
+</merge>