com.android.tools.idea.configurations.ConfigurationAction.java Source code

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Here is the source code for com.android.tools.idea.configurations.ConfigurationAction.java

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/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * 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.android.tools.idea.configurations;

import com.android.tools.idea.rendering.ProjectResources;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.fileEditor.FileEditorManager;
import com.intellij.openapi.fileEditor.OpenFileDescriptor;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import javax.swing.*;

abstract class ConfigurationAction extends AnAction implements ConfigurationListener {
    protected final RenderContext myRenderContext;
    private int myFlags;

    public ConfigurationAction(@NotNull RenderContext renderContext, @NotNull String title) {
        this(renderContext, title, null);
    }

    public ConfigurationAction(@NotNull RenderContext renderContext, @NotNull String title, @Nullable Icon icon) {
        super(title, null, icon);
        myRenderContext = renderContext;
    }

    @Override
    public void actionPerformed(AnActionEvent e) {
        tryUpdateConfiguration();
    }

    protected void tryUpdateConfiguration() {
        Configuration configuration = myRenderContext.getConfiguration();
        if (configuration != null) {
            // See if after switching we need to switch files
            Configuration clone = configuration.clone();
            myFlags = 0;
            clone.addListener(this);
            updateConfiguration(clone);
            clone.removeListener(this);

            boolean affectsFileSelection = (myFlags & MASK_FILE_ATTRS) != 0;
            // get the resources of the file's project.
            if (affectsFileSelection) {
                Module module = myRenderContext.getModule();
                assert module != null;
                VirtualFile file = myRenderContext.getVirtualFile();
                ConfigurationMatcher matcher = new ConfigurationMatcher(clone, ProjectResources.get(module, true),
                        file);
                VirtualFile best = matcher.getBestFileMatch();
                if (best != null && !best.equals(file)) {
                    // Switch files, and leave this configuration alone
                    pickedBetterMatch(best);
                    return;
                }
            }

            updateConfiguration(configuration);
        }
    }

    protected void pickedBetterMatch(@NotNull VirtualFile file) {
        // Switch files, and leave this configuration alone
        Module module = myRenderContext.getModule();
        assert module != null;
        Project project = module.getProject();
        OpenFileDescriptor descriptor = new OpenFileDescriptor(project, file, -1);
        FileEditorManager.getInstance(project).openEditor(descriptor, true);
    }

    @Override
    public boolean changed(int flags) {
        myFlags |= flags;
        return true;
    }

    protected abstract void updateConfiguration(@NotNull Configuration configuration);
}