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‎resources/META-INF/plugin.xml‎

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<idea-plugin>
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<id>com.your.company.unique.plugin.id</id>
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<name>Plugin display name here</name>
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<version>1.0</version>
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<vendor email="stephen.linicoding@gmail.com" url="http://www.zuicoding.com">醉●coding</vendor>
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<description><![CDATA[
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Enter short description for your plugin here.<br>
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<em>most HTML tags may be used</em>
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]]></description>
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<change-notes><![CDATA[
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Add change notes here.<br>
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<em>most HTML tags may be used</em>
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]]>
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</change-notes>
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<!-- please see http://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/build_number_ranges.html for description -->
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<idea-version since-build="145.0"/>
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<!-- please see http://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/plugin_compatibility.html
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on how to target different products -->
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<!-- uncomment to enable plugin in all products
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<depends>com.intellij.modules.lang</depends>
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-->
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<extensions defaultExtensionNs="com.intellij">
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<!-- Add your extensions here -->
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</extensions>
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<actions>
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<!-- Add your actions here -->
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<action id="JSONFormater" class="com.zuicoding.platform.plugins.jsonformater.JSONFormater" text="JSON 格式化"
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description="JSON 格式化">
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<add-to-group group-id="ToolsMenu" anchor="first"/>
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</action>
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</actions>
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</idea-plugin>

‎src/com/zuicoding/platform/plugins/jsonformater/JSONFormater.java‎

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package com.zuicoding.platform.plugins.jsonformater;
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import com.intellij.openapi.actionSystem.AnAction;
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import com.intellij.openapi.actionSystem.AnActionEvent;
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import com.intellij.openapi.ui.DialogWrapper;
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import com.zuicoding.platform.plugins.ui.JSONViewer;
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/**
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* Created by <a href="mailto:stephen.linicoding@gmail.com">Stephen.lin</a> on 2017/12/4
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* <p>
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* <p></p>
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*/
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public class JSONFormater extends AnAction {
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@Override
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public void actionPerformed(AnActionEvent e) {
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DialogWrapper dialog = new JSONViewer();
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dialog.show();
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dialog.setSize(800,600);
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}
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}

‎src/com/zuicoding/platform/plugins/jsonformater/JsonUtils.java‎

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package com.zuicoding.platform.plugins.jsonformater;
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/**
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* Created by <a href="mailto:stephen.linicoding@gmail.com">Stephen.lin</a> on 2017/12/7
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* <p>
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* <p></p>
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*/
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public class JsonUtils {
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private JsonUtils(){}
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private static void addIndentBlank(StringBuilder sb, int indent) {
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for (int i = 0; i < indent; i++) {
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sb.append('\t');
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}
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}
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public static String formatJson(String json){
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if (json== null || json.trim().isEmpty())return "";
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StringBuilder sb = new StringBuilder();
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char last = '\0';
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char current = '\0';
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int indent = 0;
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boolean isInQuotationMarks = false;
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for (int i = 0; i < json.length(); i++) {
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last = current;
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current = json.charAt(i);
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switch (current) {
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case '"':
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if (last != '\\'){
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isInQuotationMarks = !isInQuotationMarks;
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}
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sb.append(current);
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break;
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case '{':
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case '[':
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sb.append(current);
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if (!isInQuotationMarks) {
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sb.append('\n');
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indent++;
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addIndentBlank(sb, indent);
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}
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break;
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case '}':
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case ']':
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if (!isInQuotationMarks) {
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sb.append('\n');
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indent--;
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addIndentBlank(sb, indent);
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}
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sb.append(current);
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break;
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case ',':
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sb.append(current);
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if (last != '\\' && !isInQuotationMarks) {
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sb.append('\n');
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addIndentBlank(sb, indent);
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}
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break;
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default:
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sb.append(current);
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}
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}
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return sb.toString();
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}
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}

‎src/com/zuicoding/platform/plugins/ui/JSONViewer.form‎

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<?xml version="1.0" encoding="UTF-8"?>
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<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="com.zuicoding.platform.plugins.ui.JSONViewer">
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<grid id="27dc6" binding="container" layout-manager="GridLayoutManager" row-count="1" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
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<margin top="0" left="0" bottom="0" right="0"/>
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<constraints>
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<xy x="20" y="20" width="800" height="600"/>
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</constraints>
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<properties>
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<minimumSize width="800" height="600"/>
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</properties>
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<border type="none"/>
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<children>
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<scrollpane id="dbe2d">
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<constraints>
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<grid row="0" column="0" row-span="1" col-span="1" vsize-policy="7" hsize-policy="7" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
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</constraints>
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<properties/>
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<border type="none"/>
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<children>
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<component id="ad571" class="javax.swing.JTextArea" binding="jsonText">
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<constraints/>
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<properties/>
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</component>
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</children>
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</scrollpane>
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</children>
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</grid>
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<inspectionSuppressions>
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<suppress inspection="NoLabelFor" id="ad571"/>
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</inspectionSuppressions>
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</form>

‎src/com/zuicoding/platform/plugins/ui/JSONViewer.java‎

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package com.zuicoding.platform.plugins.ui;
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import com.intellij.openapi.ui.DialogWrapper;
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import com.zuicoding.platform.plugins.jsonformater.JsonUtils;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import javax.swing.*;
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import java.awt.event.ActionEvent;
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/**
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* Created by <a href="mailto:stephen.linicoding@gmail.com">Stephen.lin</a> on 2017/12/7
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* <p>
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* <p></p>
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*/
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public class JSONViewer extends DialogWrapper{
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private JPanel container;
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private JTextArea jsonText;
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public JSONViewer() {
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super(false);
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init();
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setTitle("JSON 格式化");
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setOKButtonText("格式化");
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}
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public JPanel getContainer() {
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return container;
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}
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@NotNull
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@Override
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protected Action[] createActions() {
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Action[] actions = super.createActions();
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actions[0] = new DialogWrapperAction("格式化") {
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@Override
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protected void doAction(ActionEvent actionEvent) {
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String text = jsonText.getText();
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if (text == null || text.trim().isEmpty()) return;
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System.err.println(text);
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jsonText.setText(JsonUtils.formatJson(text));
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}
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};
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return actions;
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}
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@Nullable
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@Override
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protected JComponent createCenterPanel() {
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return container;
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}
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}

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