com.google.gerrit.client.actions.ActionButton.java Source code

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Here is the source code for com.google.gerrit.client.actions.ActionButton.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.google.gerrit.client.actions;

import com.google.gerrit.client.api.ActionContext;
import com.google.gerrit.client.api.ChangeGlue;
import com.google.gerrit.client.api.EditGlue;
import com.google.gerrit.client.api.ProjectGlue;
import com.google.gerrit.client.api.RevisionGlue;
import com.google.gerrit.client.info.ActionInfo;
import com.google.gerrit.client.info.ChangeInfo;
import com.google.gerrit.client.info.ChangeInfo.EditInfo;
import com.google.gerrit.client.info.ChangeInfo.RevisionInfo;
import com.google.gerrit.client.projects.BranchInfo;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;

public class ActionButton extends Button implements ClickHandler {
    private final Project.NameKey project;
    private final BranchInfo branch;
    private final ChangeInfo change;
    private final EditInfo edit;
    private final RevisionInfo revision;
    private final ActionInfo action;
    private ActionContext ctx;

    public ActionButton(Project.NameKey project, ActionInfo action) {
        this(project, null, null, null, null, action);
    }

    public ActionButton(Project.NameKey project, BranchInfo branch, ActionInfo action) {
        this(project, branch, null, null, null, action);
    }

    public ActionButton(ChangeInfo change, ActionInfo action) {
        this(null, null, change, null, null, action);
    }

    public ActionButton(ChangeInfo change, RevisionInfo revision, ActionInfo action) {
        this(null, null, change, null, revision, action);
    }

    private ActionButton(Project.NameKey project, BranchInfo branch, ChangeInfo change, EditInfo edit,
            RevisionInfo revision, ActionInfo action) {
        super(new SafeHtmlBuilder().openDiv().append(action.label()).closeDiv());
        setStyleName("");
        setTitle(action.title());
        setEnabled(action.enabled());
        addClickHandler(this);

        this.project = project;
        this.branch = branch;
        this.change = change;
        this.edit = edit;
        this.revision = revision;
        this.action = action;
    }

    @Override
    public void onClick(ClickEvent event) {
        if (ctx != null && ctx.has_popup()) {
            ctx.hide();
            ctx = null;
            return;
        }

        if (revision != null) {
            RevisionGlue.onAction(change, revision, action, this);
        } else if (edit != null) {
            EditGlue.onAction(change, edit, action, this);
        } else if (change != null) {
            ChangeGlue.onAction(change, action, this);
        } else if (branch != null) {
            ProjectGlue.onAction(project, branch, action, this);
        } else if (project != null) {
            ProjectGlue.onAction(project, action, this);
        }
    }

    @Override
    public void onUnload() {
        if (ctx != null) {
            if (ctx.has_popup()) {
                ctx.hide();
            }
            ctx = null;
        }
        super.onUnload();
    }

    public void link(ActionContext ctx) {
        this.ctx = ctx;
    }

    public void unlink() {
        ctx = null;
    }
}