《Qt5+安装包制作（Qt Installer Framework）》四--component

悠悠 2022-09-08 11:47 130阅读 0赞

# component #

Represents the current component that the Qt Script belongs to. [More...][]

*  [List of all members, including inherited members][List of all members_ including inherited members]

## Properties ##

*  **[archives][]** : stringlist
 *  **[autoCreateOperations][]** : boolean
 *  **[autoDependencies][]** : stringlist
 *  **[default][]** : boolean
 *  **[dependencies][]** : stringlist
 *  **[displayName][]** : string
 *  **[enabled][]** : boolean
 *  **[fromOnlineRepository][]** : boolean
 *  **[installed][]** : boolean
 *  **[name][]** : string
 *  **[repositoryUrl][]** : url
 *  **[userInterfaces][]** : stringlist

## Signals ##

*  **[loaded][]()**
 *  **[valueChanged][]**(string *key*, string *value*)
 *  **[virtualStateChanged][]**()

## Methods ##

*  void **[addAutoDependOn][]**(string *newDependOn*)
 *  void **[addDependency][]**(string *newDependency*)
 *  void **[addDownloadableArchive][]**(string *path*)
 *  boolean **[addElevatedOperation][]**(string *operation*, stringlist *parameters*)
 *  boolean **[addElevatedOperation][addElevatedOperation 1]**(string *operation*, string *parameter1*, string *parameter2*, *...*, string *parameter10*)
 *  **boolean [addOperation][](string *operation*, string *parameter1*, string *parameter2*, *...*, string *parameter10*)**
 *  **boolean [addOperation][addOperation 1](string *operation*, stringlist *parameters*)**
 *  void **[addStopProcessForUpdateRequest][]**(string *process*)
 *  void **[beginInstallation][]**()
 *  boolean **[componentChangeRequested][]**()
 *  **void [createOperations][]()**
 *  void **[createOperationsForArchive][]**(string *archive*)
 *  void **[createOperationsForPath][]**(string *path*)
 *  boolean **[installationRequested][]**()
 *  boolean **[isAutoDependOn][]**(QSet<string> *componentsToInstall*)
 *  boolean **[isDefault][]**()
 *  boolean **[isForcedUpdate][]**()
 *  boolean **[isFromOnlineRepository][]**()
 *  boolean **[isInstalled][]**()
 *  boolean **[isUninstalled][]**()
 *  void **[registerPathForUninstallation][]**(string *path*, boolean *wipe*)
 *  void **[removeDownloadableArchive][]**(string *path*)
 *  void **[removeStopProcessForUpdateRequest][]**(string *process*)
 *  void **[setAutoCreateOperations][]**(boolean *autoCreateOperations*)
 *  void **[setInstalled][]**()
 *  void **[setStopProcessForUpdateRequest][]**(string *process*, boolean *requested*)
 *  void **[setUninstalled][]**()
 *  void **[setUpdateAvailable][]**(boolean *isUpdateAvailable*)
 *  void **[setValue][]**(string *key*, string *value*)
 *  boolean **[uninstallationRequested][]**()
 *  boolean **[updateRequested][]**()
 *  QWidget **[userInterface][]**(string *name*)
 *  string **[value][]**(string *key*, string *value*)

## Detailed Description ##

A minimal valid script needs to contain a constructor, which can look like this:

function Component()
    {
        // Access the global component's name property and log it to the debug console.
        console.log("component: " + component.displayName);
    }

The `Component` class and the script engine both modify the script before it is evaluated. When the modifications are applied to the above snippet, the script changes to:

(function() { [1]
        var component = installer.componentByName('Component.Name.This.Script.Belongs.To'); [2]
        function Component()
        {
            // Access the global component's name property and log it to the debug console.
            console.log("component: " + component.displayName);
        }
    
        if (typeof Component != undefined) [1]
            return new Component; [1]
        else [1]
            throw "Missing Component constructor. Please check your script." [1]
    })();
    
    [1] Changes done by the script engine.
    [2] Changes done by the Component class.

**Note: **The *component* (in lower case) is the global variable the C++ `Component` class introduced. The *component* variable represents the C++ `Component` object that the script belongs to. The *Component* (in upper case) is a JavaScript object that gets instantiated by the script engine.

## Property Documentation ##

<table> 
 <tbody> 
  <tr> 
   <td> <p>archives&nbsp;:&nbsp;stringlist</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns the list of archive URL's (prefixed with `installer://`) registered for the component.

**See also **[addDownloadableArchive][] and [removeDownloadableArchive][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>autoCreateOperations&nbsp;:&nbsp;boolean</p> </td> 
  </tr> 
 </tbody> 
</table>

Specifies whether some standard operations for the component should be automatically created when the installation starts. The default is `true`.

<table> 
 <tbody> 
  <tr> 
   <td> <p>autoDependencies&nbsp;:&nbsp;stringlist</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns the value of the `<AutoDependOn>` tag in the package information file.

<table> 
 <tbody> 
  <tr> 
   <td> <p>default&nbsp;:&nbsp;boolean</p> </td> 
  </tr> 
 </tbody> 
</table>

This read-only property indicates if the component is a default one.

**Note: **Always `false` for virtual components.

**See also **[isDefault][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>dependencies&nbsp;:&nbsp;stringlist</p> </td> 
  </tr> 
 </tbody> 
</table>

This read-only property contains components this component depends on.

<table> 
 <tbody> 
  <tr> 
   <td> <p>displayName&nbsp;:&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a></p> </td> 
  </tr> 
 </tbody> 
</table>

Returns the name of the component as shown in the user interface.

<table> 
 <tbody> 
  <tr> 
   <td> <p>enabled&nbsp;:&nbsp;boolean</p> </td> 
  </tr> 
 </tbody> 
</table>

Indicates whether the component is currently enabled. The property is both readable and writable.

<table> 
 <tbody> 
  <tr> 
   <td> <p>fromOnlineRepository&nbsp;:&nbsp;boolean</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns whether this component has been loaded from an online repository.

**See also **[isFromOnlineRepository][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>installed&nbsp;:&nbsp;boolean</p> </td> 
  </tr> 
 </tbody> 
</table>

This read-only property returns if the component is installed.

**See also **[isInstalled][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>name&nbsp;:&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a></p> </td> 
  </tr> 
 </tbody> 
</table>

Returns the name of the component as set in the `<Name>` tag of the package information file.

<table> 
 <tbody> 
  <tr> 
   <td> <p>repositoryUrl&nbsp;:&nbsp;<a href="http://doc.qt.io/qt-5/qml-url.html" rel="nofollow">url</a></p> </td> 
  </tr> 
 </tbody> 
</table>

Returns the repository URL the component is downloaded from. When this component is not downloaded from an online repository, returns an empty \#[QUrl][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>userInterfaces&nbsp;:&nbsp;stringlist</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns a list of all user interface class names known to this component.

## Signal Documentation ##

<table> 
 <tbody> 
  <tr> 
   <td> <p>loaded()</p> </td> 
  </tr> 
 </tbody> 
</table>

**Emitted when the component has been loaded.**

**Note: The corresponding handler is `onLoaded`**.

<table> 
 <tbody> 
  <tr> 
   <td> <p>valueChanged(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>key</em>,&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>value</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Emitted when the value of the variable with the name *key* changes to *value*.

**Note: **The corresponding handler is `onValueChanged`.

**See also **[setValue][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>virtualStateChanged()</p> </td> 
  </tr> 
 </tbody> 
</table>

Emitted when the virtual state of the component changes.

**Note: **The corresponding handler is `onVirtualStateChanged`.

## Method Documentation ##

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;addAutoDependOn(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>newDependOn</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Adds the component specified by *newDependOn* to the automatic depend-on list.

**See also **[autoDependencies][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;addDependency(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>newDependency</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Adds a new component *newDependency* to the list of dependencies.

**See also **[dependencies][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;addDownloadableArchive(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>path</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Adds the archive *path* to this component. This can only be called when this component was downloaded from an online repository. When adding *path*, it will be downloaded from the repository when the installation starts.

**See also **[removeDownloadableArchive][], [fromOnlineRepository][], and [archives][].

Creates and adds an installation operation for *operation*. Add any number of parameters. The contents of the parameters get variables like "@TargetDir@" replaced with their values, if contained. *operation* is executed with elevated rights.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;addElevatedOperation(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>operation</em>,&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>parameter1</em>&nbsp;= "",&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>parameter2</em>&nbsp;= "",&nbsp;<em>...</em>,&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>parameter10</em>&nbsp;= "")</p> </td> 
  </tr> 
 </tbody> 
</table>

Convenience method for calling addElevatedOperation(string, stringlist) with up to 10 arguments.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;addOperation(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>operation</em>,&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>parameter1</em>&nbsp;= "",&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>parameter2</em>&nbsp;= "",&nbsp;<em>...</em>,&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>parameter10</em>&nbsp;= "")</p> </td> 
  </tr> 
 </tbody> 
</table>

**Convenience method for calling addOperation(string, stringlist) with up to 10 arguments**.

**Creates and adds an installation operation for *operation*. Add any number of parameters. The contents of the parameters get variables like "@TargetDir@" replaced with their values, if contained.**

**The method is typically called from within [component::createOperations()][createOperations].**

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;addStopProcessForUpdateRequest(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>process</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Adds a request for quitting the process *process* before installing, updating, or uninstalling the component.

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;beginInstallation()</p> </td> 
  </tr> 
 </tbody> 
</table>

Starts the component installation. You can override this method by providing a method with the same name in the component script.

Component.prototype.beginInstallation = function()
    {
        // call default implementation
        component.beginInstallation();
        // ...
    }

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;componentChangeRequested()</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns `true` if this component will be changed (update, installation, or uninstallation).

<table> 
 <tbody> 
  <tr> 
   <td> <p><span style="color:#fe2c24;"><strong><span style="background-color:#fefcd8;">void&nbsp;createOperations()</span></strong></span></p> </td> 
  </tr> 
 </tbody> 
</table>

**Creates all operations needed to install this component. You can override this method by providing a method with the same name in the component script:**

Component.prototype.createOperations = function()
    {
        // call default implementation
        component.createOperations();
        // ... add custom operations
    }

The default implementation calls [createOperationsForArchive][] for all archives in this component.

**See also **[component::addOperation()][addOperation 1].

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;createOperationsForArchive(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>archive</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Creates all operations needed to install this component's *archive*. This method gets called from [createOperations][]. You can override this method by providing a method with the same name in the component script.

**Note: **If you call this method from a script, it will not call the script's method with the same name.

The default implementation calls [createOperationsForPath][] for everything contained in the archive. If *archive* is a compressed archive known to the installer system, an Extract operation is created, instead.

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;createOperationsForPath(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>path</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Creates all operations needed to install this component's *path*. *path* is a full qualified filename including the component's name. This method gets called from [createOperationsForArchive][]. You can override it by providing a method with the same name in the component script.

**Note: **RSA signature files are omitted by this method.

**Note: **If you call this method from a script, it will not call the script's method with the same name.

The default implementation is recursively creating Copy and Mkdir operations for all files and folders within *path*.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;installationRequested()</p> </td> 
  </tr> 
 </tbody> 
</table>

Determines whether the user wants to install the component.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;isAutoDependOn(QSet&lt;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&gt;&nbsp;<em>componentsToInstall</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Determines whether the component comes as an auto dependency. Returns `true` if the component needs to be installed.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;isDefault()</p> </td> 
  </tr> 
 </tbody> 
</table>

Indicates if the component is a default one.

**Note: **Always returns `false` for virtual components.

**See also **[default][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;isForcedUpdate()</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns `true` if the component is installed and has a `ForcedUpdate` flag set. Forced updates will be updated together with essential components before any other component can be updated or installed.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;isFromOnlineRepository()</p> </td> 
  </tr> 
 </tbody> 
</table>

Determines whether this component has been loaded from an online repository.

**See also **[addDownloadableArchive][] and [fromOnlineRepository][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;isInstalled()</p> </td> 
  </tr> 
 </tbody> 
</table>

Determines whether the component is installed.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;isUninstalled()</p> </td> 
  </tr> 
 </tbody> 
</table>

Determines whether the component is uninstalled.

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;registerPathForUninstallation(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>path</em>,&nbsp;boolean&nbsp;<em>wipe</em>&nbsp;= false)</p> </td> 
  </tr> 
 </tbody> 
</table>

Registers the file or directory at *path* for being removed when this component gets uninstalled. In case of a directory, this will be recursive. If *wipe* is set to `true`, the directory will also be deleted if it contains changes done by the user after installation.

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;removeDownloadableArchive(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>path</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Removes the archive *path* previously added via [addDownloadableArchive][] from this component. This can only be called when this component was downloaded from an online repository.

**See also **[addDownloadableArchive][], [fromOnlineRepository][], and [archives][].

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;removeStopProcessForUpdateRequest(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>process</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Removes the request for quitting the process *process* again.

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;setAutoCreateOperations(boolean&nbsp;<em>autoCreateOperations</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Setter for the [autoCreateOperations][] property.

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;setInstalled()</p> </td> 
  </tr> 
 </tbody> 
</table>

Set's the components state to installed.

**See also **[isInstalled()][isInstalled].

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;setStopProcessForUpdateRequest(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>process</em>,&nbsp;boolean&nbsp;<em>requested</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

A convenience method for adding or removing the request for stopping *process* depending on whether *requested* is `true` (add) or `false` (remove).

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;setUninstalled()</p> </td> 
  </tr> 
 </tbody> 
</table>

Sets the component state to uninstalled.

**See also **[isUninstalled()][isUninstalled].

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;setUpdateAvailable(boolean&nbsp;<em>isUpdateAvailable</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Sets a flag that the core found an update.

<table> 
 <tbody> 
  <tr> 
   <td> <p>void&nbsp;setValue(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>key</em>,&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>value</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Sets the value of the variable with *key* to *value*.

**See also **[value()][value].

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;uninstallationRequested()</p> </td> 
  </tr> 
 </tbody> 
</table>

Determines whether the user wants to uninstall the component.

<table> 
 <tbody> 
  <tr> 
   <td> <p>boolean&nbsp;updateRequested()</p> </td> 
  </tr> 
 </tbody> 
</table>

Determines whether the user wants to install the update for this component.

<table> 
 <tbody> 
  <tr> 
   <td> <p>QWidget&nbsp;userInterface(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>name</em>)</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns the [QWidget][] created for *name* or `0` if the widget has been deleted or cannot be found.

<table> 
 <tbody> 
  <tr> 
   <td> <p><a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;value(<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>key</em>,&nbsp;<a href="http://doc.qt.io/qt-5/qml-string.html" rel="nofollow">string</a>&nbsp;<em>value</em>&nbsp;= "")</p> </td> 
  </tr> 
 </tbody> 
</table>

Returns the value of variable name *key*. If *key* is not known yet, *defaultValue* is returned.

**Note: **If a component is virtual and you ask for the component value with the key "Default", it will always return `false`.

**See also **[setValue()][setValue].

[More...]: https://doc.qt.io/qtinstallerframework/scripting-component.html#details
[List of all members_ including inherited members]: https://doc.qt.io/qtinstallerframework/scripting-component-members.html
[archives]: https://doc.qt.io/qtinstallerframework/scripting-component.html#archives-prop
[autoCreateOperations]: https://doc.qt.io/qtinstallerframework/scripting-component.html#autoCreateOperations-prop
[autoDependencies]: https://doc.qt.io/qtinstallerframework/scripting-component.html#autoDependencies-prop
[default]: https://doc.qt.io/qtinstallerframework/scripting-component.html#default-prop
[dependencies]: https://doc.qt.io/qtinstallerframework/scripting-component.html#dependencies-prop
[displayName]: https://doc.qt.io/qtinstallerframework/scripting-component.html#displayName-prop
[enabled]: https://doc.qt.io/qtinstallerframework/scripting-component.html#enabled-prop
[fromOnlineRepository]: https://doc.qt.io/qtinstallerframework/scripting-component.html#fromOnlineRepository-prop
[installed]: https://doc.qt.io/qtinstallerframework/scripting-component.html#installed-prop
[name]: https://doc.qt.io/qtinstallerframework/scripting-component.html#name-prop
[repositoryUrl]: https://doc.qt.io/qtinstallerframework/scripting-component.html#repositoryUrl-prop
[userInterfaces]: https://doc.qt.io/qtinstallerframework/scripting-component.html#userInterfaces-prop
[loaded]: https://doc.qt.io/qtinstallerframework/scripting-component.html#loaded-signal
[valueChanged]: https://doc.qt.io/qtinstallerframework/scripting-component.html#valueChanged-signal
[virtualStateChanged]: https://doc.qt.io/qtinstallerframework/scripting-component.html#virtualStateChanged-signal
[addAutoDependOn]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addAutoDependOn-method
[addDependency]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addDependency-method
[addDownloadableArchive]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addDownloadableArchive-method
[addElevatedOperation]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addElevatedOperation-method-1
[addElevatedOperation 1]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addElevatedOperation-method
[addOperation]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addOperation-method-1
[addOperation 1]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addOperation-method
[addStopProcessForUpdateRequest]: https://doc.qt.io/qtinstallerframework/scripting-component.html#addStopProcessForUpdateRequest-method
[beginInstallation]: https://doc.qt.io/qtinstallerframework/scripting-component.html#beginInstallation-method
[componentChangeRequested]: https://doc.qt.io/qtinstallerframework/scripting-component.html#componentChangeRequested-method
[createOperations]: https://doc.qt.io/qtinstallerframework/scripting-component.html#createOperations-method
[createOperationsForArchive]: https://doc.qt.io/qtinstallerframework/scripting-component.html#createOperationsForArchive-method
[createOperationsForPath]: https://doc.qt.io/qtinstallerframework/scripting-component.html#createOperationsForPath-method
[installationRequested]: https://doc.qt.io/qtinstallerframework/scripting-component.html#installationRequested-method
[isAutoDependOn]: https://doc.qt.io/qtinstallerframework/scripting-component.html#isAutoDependOn-method
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[QUrl]: http://doc.qt.io/qt-5/qurl.html
[QWidget]: http://doc.qt.io/qt-5/qwidget.html