105 lines
3.5 KiB
Java
105 lines
3.5 KiB
Java
package com.keylesspalace.tusky.util;
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import androidx.annotation.IntDef;
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import androidx.annotation.IntRange;
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import androidx.annotation.NonNull;
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import androidx.annotation.VisibleForTesting;
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import android.text.Editable;
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import android.text.Selection;
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import android.text.Spannable;
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import android.widget.EditText;
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import me.thanel.markdownedit.SelectionUtils;
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public class HTMLEdit {
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private HTMLEdit() { /* cannot be instantiated */ }
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public static void addBold(@NonNull Editable text) {
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surroundSelectionWith(text, "<b>", "</b>");
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}
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public static void addBold(@NonNull EditText editText) {
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addBold(editText.getText());
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}
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public static void addItalic(@NonNull Editable text) {
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surroundSelectionWith(text, "<i>", "</i>");
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}
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public static void addItalic(@NonNull EditText editText) {
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addItalic(editText.getText());
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}
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public static void addStrikeThrough(@NonNull Editable text) {
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surroundSelectionWith(text, "<del>", "</del>");
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}
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public static void addStrikeThrough(@NonNull EditText editText) {
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addStrikeThrough(editText.getText());
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}
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public static void addLink(@NonNull Editable text) {
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if (!SelectionUtils.hasSelection(text)) {
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SelectionUtils.selectWordAroundCursor(text);
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}
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String selectedText = SelectionUtils.getSelectedText(text).toString().trim();
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int selectionStart = SelectionUtils.getSelectionStart(text);
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String begin = "<a href=\"url\">";
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String end = "</a>";
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String result = begin + selectedText + end;
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SelectionUtils.replaceSelectedText(text, result);
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if (selectedText.length() == 0) {
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Selection.setSelection(text, selectionStart + begin.length());
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} else {
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selectionStart = selectionStart + 9; // <a href=".length()
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Selection.setSelection(text, selectionStart, selectionStart + 3);
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}
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}
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public static void addLink(@NonNull EditText editText) {
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addLink(editText.getText());
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}
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/**
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* Inserts a markdown code block to the specified EditText at the currently selected position.
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*
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* @param text The {@link Editable} view to which to add markdown code block.
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*/
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public static void addCode(@NonNull Editable text) {
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surroundSelectionWith(text, "<code>", "</code>");
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}
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/**
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* Inserts a markdown code block to the specified EditText at the currently selected position.
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*
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* @param editText The {@link EditText} view to which to add markdown code block.
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*/
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public static void addCode(@NonNull EditText editText) {
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addCode(editText.getText());
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}
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public static void surroundSelectionWith(@NonNull Editable text, @NonNull String surroundText, @NonNull String surroundText2) {
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if (!SelectionUtils.hasSelection(text)) {
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SelectionUtils.selectWordAroundCursor(text);
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}
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CharSequence selectedText = SelectionUtils.getSelectedText(text);
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int selectionStart = SelectionUtils.getSelectionStart(text);
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selectedText = selectedText.toString().trim();
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StringBuilder result = new StringBuilder();
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result.append(surroundText).append(selectedText).append(surroundText2);
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int charactersToGoBack = 0;
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if (selectedText.length() == 0) {
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charactersToGoBack = surroundText2.length();
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}
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SelectionUtils.replaceSelectedText(text, result);
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Selection.setSelection(text, selectionStart + result.length() - charactersToGoBack);
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}
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}
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