com.intellij.diff.actions.impl.OpenInEditorWithMouseAction.java Source code

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Here is the source code for com.intellij.diff.actions.impl.OpenInEditorWithMouseAction.java

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/*
 * Copyright 2000-2015 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.diff.actions.impl;

import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.event.EditorMouseEventArea;
import com.intellij.openapi.editor.ex.EditorGutterComponentEx;
import com.intellij.openapi.fileEditor.OpenFileDescriptor;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.project.Project;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.mustbe.consulo.RequiredDispatchThread;

import javax.swing.*;
import java.awt.*;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.util.Collections;
import java.util.List;

public abstract class OpenInEditorWithMouseAction extends AnAction implements DumbAware {
    @NotNull
    private List<? extends Editor> myEditors = Collections.emptyList();

    public OpenInEditorWithMouseAction() {
        setShortcutSet(ActionManager.getInstance().getAction(IdeActions.ACTION_GOTO_DECLARATION).getShortcutSet());
    }

    public void register(@NotNull List<? extends Editor> editors) {
        myEditors = editors;
        for (Editor editor : editors) {
            if (editor == null)
                continue;
            registerCustomShortcutSet(getShortcutSet(), (EditorGutterComponentEx) editor.getGutter());
        }
    }

    @RequiredDispatchThread
    @Override
    public void update(@NotNull AnActionEvent e) {
        InputEvent inputEvent = e.getInputEvent();
        if (!(inputEvent instanceof MouseEvent)) {
            e.getPresentation().setEnabledAndVisible(false);
            return;
        }

        if (e.getProject() == null) {
            e.getPresentation().setEnabledAndVisible(false);
            return;
        }

        if (e.getData(OpenInEditorAction.KEY) == null) {
            e.getPresentation().setEnabledAndVisible(false);
            return;
        }

        Component component = inputEvent.getComponent();
        if (component == null) {
            e.getPresentation().setEnabledAndVisible(false);
            return;
        }

        Point point = ((MouseEvent) inputEvent).getPoint();
        Component componentAt = SwingUtilities.getDeepestComponentAt(component, point.x, point.y);
        if (!(componentAt instanceof EditorGutterComponentEx)) {
            e.getPresentation().setEnabledAndVisible(false);
            return;
        }

        Editor editor = getEditor(componentAt);
        if (editor == null) {
            e.getPresentation().setEnabledAndVisible(false);
            return;
        }

        MouseEvent convertedEvent = SwingUtilities.convertMouseEvent(inputEvent.getComponent(),
                (MouseEvent) inputEvent, componentAt);
        EditorMouseEventArea area = editor.getMouseEventArea(convertedEvent);
        if (area != EditorMouseEventArea.LINE_NUMBERS_AREA) {
            e.getPresentation().setEnabledAndVisible(false);
            return;
        }

        e.getPresentation().setEnabledAndVisible(true);
    }

    @RequiredDispatchThread
    @Override
    public void actionPerformed(@NotNull AnActionEvent e) {
        MouseEvent inputEvent = (MouseEvent) e.getInputEvent();
        OpenInEditorAction openInEditorAction = e.getRequiredData(OpenInEditorAction.KEY);
        Project project = e.getRequiredData(CommonDataKeys.PROJECT);

        Component component = inputEvent.getComponent();
        Point point = inputEvent.getPoint();
        Component componentAt = SwingUtilities.getDeepestComponentAt(component, point.x, point.y);
        MouseEvent convertedEvent = SwingUtilities.convertMouseEvent(inputEvent.getComponent(), inputEvent,
                componentAt);

        Editor editor = getEditor(componentAt);
        assert editor != null;

        int line = editor.xyToLogicalPosition(convertedEvent.getPoint()).line;

        OpenFileDescriptor descriptor = getDescriptor(editor, line);
        if (descriptor == null)
            return;

        openInEditorAction.openEditor(project, descriptor);
    }

    @Nullable
    private Editor getEditor(@NotNull Component component) {
        for (Editor editor : myEditors) {
            if (editor != null && editor.getGutter() == component) {
                return editor;
            }
        }
        return null;
    }

    @Nullable
    protected abstract OpenFileDescriptor getDescriptor(@NotNull Editor editor, int line);
}