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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @unrestricted
*/
Persistence.DefaultMapping = class {
/**
* @param {!Workspace.Workspace} workspace
* @param {!Workspace.FileSystemMapping} fileSystemMapping
* @param {function(!Persistence.PersistenceBinding)} onBindingCreated
* @param {function(!Persistence.PersistenceBinding)} onBindingRemoved
*/
constructor(workspace, fileSystemMapping, onBindingCreated, onBindingRemoved) {
this._workspace = workspace;
this._fileSystemMapping = fileSystemMapping;
/** @type {!Set<!Persistence.PersistenceBinding>} */
this._bindings = new Set();
this._onBindingCreated = onBindingCreated;
this._onBindingRemoved = onBindingRemoved;
this._eventListeners = [
workspace.addEventListener(Workspace.Workspace.Events.UISourceCodeAdded, this._onUISourceCodeAdded, this),
workspace.addEventListener(Workspace.Workspace.Events.UISourceCodeRemoved, this._onUISourceCodeRemoved, this),
workspace.addEventListener(Workspace.Workspace.Events.ProjectRemoved, this._onProjectRemoved, this),
this._fileSystemMapping.addEventListener(Workspace.FileSystemMapping.Events.FileMappingAdded, this._remap, this),
this._fileSystemMapping.addEventListener(Workspace.FileSystemMapping.Events.FileMappingRemoved, this._remap, this)
];
this._remap();
}
_remap() {
for (var binding of this._bindings.valuesArray())
this._unbind(binding.network);
var networkProjects = this._workspace.projectsForType(Workspace.projectTypes.Network);
for (var networkProject of networkProjects) {
for (var uiSourceCode of networkProject.uiSourceCodes())
this._bind(uiSourceCode);
}
}
/**
* @param {!Common.Event} event
*/
_onUISourceCodeAdded(event) {
var uiSourceCode = /** @type {!Workspace.UISourceCode} */ (event.data);
this._bind(uiSourceCode);
}
/**
* @param {!Common.Event} event
*/
_onUISourceCodeRemoved(event) {
var uiSourceCode = /** @type {!Workspace.UISourceCode} */ (event.data);
this._unbind(uiSourceCode);
}
/**
* @param {!Common.Event} event
*/
_onProjectRemoved(event) {
var project = /** @type {!Workspace.Project} */ (event.data);
for (var uiSourceCode of project.uiSourceCodes())
this._unbind(uiSourceCode);
}
/**
* @param {!Workspace.UISourceCode} uiSourceCode
* @return {?Persistence.PersistenceBinding}
*/
_createBinding(uiSourceCode) {
if (uiSourceCode.project().type() === Workspace.projectTypes.FileSystem) {
var fileSystemPath = Persistence.FileSystemWorkspaceBinding.fileSystemPath(uiSourceCode.project().id());
var networkURL = this._fileSystemMapping.networkURLForFileSystemURL(fileSystemPath, uiSourceCode.url());
var networkSourceCode = networkURL ? this._workspace.uiSourceCodeForURL(networkURL) : null;
return networkSourceCode ? new Persistence.PersistenceBinding(networkSourceCode, uiSourceCode, false) : null;
}
if (uiSourceCode.project().type() === Workspace.projectTypes.Network) {
var file = this._fileSystemMapping.fileForURL(uiSourceCode.url());
var projectId = file ? Persistence.FileSystemWorkspaceBinding.projectId(file.fileSystemPath) : null;
var fileSourceCode = file && projectId ? this._workspace.uiSourceCode(projectId, file.fileURL) : null;
return fileSourceCode ? new Persistence.PersistenceBinding(uiSourceCode, fileSourceCode, false) : null;
}
return null;
}
/**
* @param {!Workspace.UISourceCode} uiSourceCode
*/
_bind(uiSourceCode) {
console.assert(!uiSourceCode[Persistence.DefaultMapping._binding], 'Cannot bind already bound UISourceCode!');
var binding = this._createBinding(uiSourceCode);
if (!binding)
return;
// TODO(lushnikov): remove this check once there's a single uiSourceCode per url. @see crbug.com/670180
if (binding.network[Persistence.DefaultMapping._binding] || binding.fileSystem[Persistence.DefaultMapping._binding])
return;
this._bindings.add(binding);
binding.network[Persistence.DefaultMapping._binding] = binding;
binding.fileSystem[Persistence.DefaultMapping._binding] = binding;
binding.fileSystem.addEventListener(
Workspace.UISourceCode.Events.TitleChanged, this._onFileSystemUISourceCodeRenamed, this);
this._onBindingCreated.call(null, binding);
}
/**
* @param {!Workspace.UISourceCode} uiSourceCode
*/
_unbind(uiSourceCode) {
var binding = uiSourceCode[Persistence.DefaultMapping._binding];
if (!binding)
return;
this._bindings.delete(binding);
binding.network[Persistence.DefaultMapping._binding] = null;
binding.fileSystem[Persistence.DefaultMapping._binding] = null;
binding.fileSystem.removeEventListener(
Workspace.UISourceCode.Events.TitleChanged, this._onFileSystemUISourceCodeRenamed, this);
this._onBindingRemoved.call(null, binding);
}
/**
* @param {!Common.Event} event
*/
_onFileSystemUISourceCodeRenamed(event) {
var uiSourceCode = /** @type {!Workspace.UISourceCode} */ (event.data);
var binding = uiSourceCode[Persistence.DefaultMapping._binding];
this._unbind(binding.network);
this._bind(binding.network);
}
dispose() {
Common.EventTarget.removeEventListeners(this._eventListeners);
}
};
Persistence.DefaultMapping._binding = Symbol('DefaultMapping.Binding');
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