feat: added font choosing for android
This commit is contained in:
jideguru
101
lib/src/utils/font_list_parser.dart
Normal file
101
lib/src/utils/font_list_parser.dart
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@@ -0,0 +1,101 @@
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import 'dart:convert';
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import 'dart:io';
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import 'package:rich_editor/src/models/alias.dart';
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import 'package:rich_editor/src/models/config.dart';
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import 'package:rich_editor/src/models/family.dart';
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import 'package:rich_editor/src/models/font.dart';
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import 'package:rich_editor/src/models/system_font.dart';
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import 'package:xml2json/xml2json.dart';
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// A simple port of FontListParser from Java to Kotlin
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// See https://stackoverflow.com/a/29533686/10835183
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class FontListParser {
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File androidFontsFile = File("/system/etc/fonts.xml");
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File androidSystemFontsFile = File("/system/etc/system_fonts.xml");
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List<SystemFont> getSystemFonts() {
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String fontsXml;
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if (androidFontsFile.existsSync()) {
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fontsXml = androidFontsFile.path;
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} else if (androidSystemFontsFile.existsSync()) {
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fontsXml = androidSystemFontsFile.path;
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} else {
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throw ("fonts.xml does not exist on this system");
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}
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Xml2Json xml2json = new Xml2Json();
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xml2json.parse(File(fontsXml).readAsStringSync());
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Map json = jsonDecode(xml2json.toGData());
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Config parser = Config.fromJson(json['familyset']);
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List<SystemFont> fonts = <SystemFont>[];
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for (Family family in parser.families!) {
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if (family.name != null) {
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Font font = Font();
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for (Font f in family.fonts!) {
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font = f;
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if (int.tryParse(f.weight!) == 400) {
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break;
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}
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}
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SystemFont systemFont = new SystemFont(family.name!, font.t ?? '');
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if (fonts.contains(systemFont)) {
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continue;
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}
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fonts.add(new SystemFont(family.name!, font.t ?? ''));
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}
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}
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for (Alias alias in parser.aliases!) {
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if (alias.name == null ||
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alias.to == null ||
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int.tryParse(alias.weight ?? '') == 0) {
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continue;
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}
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for (Family family in parser.families!) {
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if (family.name == null || family.name! == alias.to) {
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continue;
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}
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for (Font font in family.fonts!) {
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if (font.weight == alias.weight) {
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fonts.add(new SystemFont(alias.name!, font.t ?? ''));
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break;
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}
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}
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}
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}
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if (fonts.isEmpty) {
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throw Exception("No system fonts found.");
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}
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// fonts
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// print(fonts);
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return fonts;
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}
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List<SystemFont> safelyGetSystemFonts() {
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try {
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return getSystemFonts();
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} catch (e) {
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List<List> defaultSystemFonts = [
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["cursive", "DancingScript-Regular.ttf"],
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["monospace", "DroidSansMono.ttf"],
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["sans-serif", "Roboto-Regular.ttf"],
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["sans-serif-light" "Roboto-Light.ttf"],
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["sans-serif-medium", "Roboto-Medium.ttf"],
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["sans-serif-black", "Roboto-Black.ttf"],
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["sans-serif-condensed", "RobotoCondensed-Regular.ttf"],
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["sans-serif-thin", "Roboto-Thin.ttf"],
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["serif", "NotoSerif-Regular.ttf"]
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];
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List<SystemFont> fonts = <SystemFont>[];
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for (List names in defaultSystemFonts) {
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File file = new File("/system/fonts/"+ names[1]);
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if (file.existsSync()) {
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fonts.add(new SystemFont(names[0], file.path));
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}
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}
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return fonts;
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}
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}
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}
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@@ -1,5 +1,8 @@
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import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:rich_editor/src/extensions/extensions.dart';
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import 'package:rich_editor/src/models/editor_state.dart';
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import 'package:rich_editor/src/models/enum.dart';
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import 'package:webview_flutter/webview_flutter.dart';
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@@ -15,6 +18,7 @@ class JavascriptExecutorBase {
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String defaultEncoding = "UTF-8";
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String? htmlField = "";
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var didHtmlChange = false;
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Map<CommandName, CommandState> commandStates = {};
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init(WebViewController controller) {
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@@ -196,4 +200,88 @@ class JavascriptExecutorBase {
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static encodeHtml(String html) {
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return Uri.encodeFull(html);
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}
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// bool shouldOverrideUrlLoading(String url) {
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// String decodedUrl;
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// try {
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// decodedUrl = decodeHtml(url);
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// } catch (e) {
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// // No handling
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// return false;
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// }
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//
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// if (url.indexOf(editorStateChangedCallbackScheme) == 0) {
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// editorStateChanged(
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// decodedUrl.substring(editorStateChangedCallbackScheme.length));
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// return true;
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// }
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//
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// return false;
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// }
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//
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// editorStateChanged(String statesString) {
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// try {
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// var editorState = EditorState.fromJson(jsonDecode(statesString));
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//
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// bool currentHtmlChanged = this.htmlField != editorState.html;
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// this.htmlField = editorState.html;
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//
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// retrievedEditorState(editorState.didHtmlChange, editorState.commandStates)
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//
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// if (currentHtmlChanged) {
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// fireHtmlChangedListenersAsync(editorState.html);
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// }
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// }
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// catch (e) {
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// throw("Could not parse command states: $statesString $e");
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// }
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// }
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//
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// retrievedEditorState(bool didHtmlChange,
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// Map<CommandName, CommandState> commandStates) {
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// if (this.didHtmlChange != didHtmlChange) {
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// this.didHtmlChange = didHtmlChange;
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// didHtmlChangeListeners.forEach {
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// it.didHtmlChange(didHtmlChange);
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// }
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// }
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//
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// handleRetrievedCommandStates(commandStates)
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// }
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//
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// handleRetrievedCommandStates(Map<CommandName, CommandState> commandStates) {
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// determineDerivedCommandStates(commandStates)
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//
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// this.commandStates = commandStates;
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//
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// commandStatesChangedListeners.forEach {
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// it.invoke(this.commandStates)
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// }
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// }
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// determineDerivedCommandStates(Map<CommandName, CommandState> commandStates) {
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// commandStates[CommandName.FORMATBLOCK]?.let { formatCommandState ->
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// commandStates.put(CommandName.H1, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "h1")))
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// commandStates.put(CommandName.H2, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "h2")))
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// commandStates.put(CommandName.H3, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "h3")))
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// commandStates.put(CommandName.H4, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "h4")))
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// commandStates.put(CommandName.H5, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "h5")))
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// commandStates.put(CommandName.H6, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "h6")))
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// commandStates.put(CommandName.P, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "p")))
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// commandStates.put(CommandName.PRE, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "pre")))
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// commandStates.put(CommandName.BR, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "")))
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// commandStates.put(CommandName.BLOCKQUOTE, CommandState(formatCommandState.executable, isFormatActivated(formatCommandState, "blockquote")))
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// }
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//
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// commandStates[CommandName.INSERTHTML]?.let { insertHtmlState ->
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// commandStates.put(CommandName.INSERTLINK, insertHtmlState)
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// commandStates.put(CommandName.INSERTIMAGE, insertHtmlState)
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// commandStates.put(CommandName.INSERTCHECKBOX, insertHtmlState)
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// }
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// }
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// String isFormatActivated(CommandState formatCommandState, String format) {
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// return (formatCommandState.value == format)
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// .toString(); // rich_text_editor.js reports boolean values as string, so we also have to convert it to string
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// }
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}
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