AutoConnectAux is the container for a custom Web page, AutoConnectElement is the component of a page. AutoConnectElements must be contained in AutoConnectAux object. (ie. they are the elements displayed on the custom Web page.) Then AutoConnect makes an AutoConnectAux to a page.
AutoConnectElements (i.e. they are the elements displayed on the custom Web page) must be contained in AutoConnectAux object. AutoConnectElements declared in sketch must be programmed to add to AutoConnectAux one after another. Elements are automatically included in AutoConnectAux by AutoConnect if you load it from the JSON description. In either method, it is common to use the function of AutoConnectAux to access an element with a sketch.
AutoConnectElements declared in sketch must be programmed to add to AutoConnectAux one after another. Elements are automatically included in AutoConnectAux by AutoConnect if you load it from the JSON document. In either method, it is common to use the function of AutoConnectAux to access an element with a sketch.
## Handing AutoConnectElements with the sketches
The AutoConnectAux class has several functions to manipulate AutoConnectElements. The functions can add, delete, retrieve elements, and get and set values.
The add function adds specified AutoConnectElement to the AutoConnectAux. If specified the collection of AutoConnectElements as a `std::vector` of the references to each element, these elements added in bulk.
The add function adds the specified AutoConnectElement to AutoConnectAux. The AutoConnectElementVT type is the [*std::vector*](https://en.cppreference.com/w/cpp/container/vector) of the [*reference wrapper*](https://en.cppreference.com/w/cpp/utility/functional/reference_wrapper) to AutoConnectElements, and you can add these elements in bulk by using the [*list initialization*](https://en.cppreference.com/w/cpp/language/list_initialization) with the sketch.
The AutoConnectElements contained in the AutoConnectAux object are uniquely identified by the name. When adding an AutoConnectElement, if an element with the same name already exists in the AutoConnectAux, checking the type, and if it is the same, the value will be replaced. If another type of AutoConnectElement exists with the same name, that add operation will be invalid.[^1] In the following example, an AutoConnectButton as `button` addition is invalid.
AutoConnectElements contained in AutoConnectAux object are uniquely identified by name. When adding an AutoConnectElement, if an element with the same name already exists in the AutoConnectAux, checking the type, and if it is the same, the value will be replaced. If another type of AutoConnectElement exists with the same name, that add operation will be invalid.[^1] In the following example, AutoConnectButton `button` addition will invalid because `hello` with the same name already exists as AutoConnectText.
[^1]: The valid scope of the name is within an AutoConnectAux.
@ -59,15 +66,15 @@ Similarly this, the uniqueness of the name is also necessary within the JSON doc
To retrieve an element from AutoConnectAux, use the getElement or getElements function. Normally, the getElement is needed when accessing the value of AutoConnectElement in the sketch.
The [**getElement**](apiaux.md#getelement) function returns an AutoConnectElement with the specified name as a key. When you use this function, you need to know the type of AutoConnectElement in advance. To retrieve an AutoConnectElement by specifying its type, use the following method.
@ -94,14 +101,12 @@ AutoConenctText& text = aux->getElement<AutoConnectText>("caption"); // Cast to
Serial.println(text.value);
```
To get all the AutoConnectElements of an AutoConnectAux object use the [**getElements**](apiaux.md#getelements) function. This function returns the vector of the reference wrapper as *AutoConnectElementVT* to all AutoConnectElements registered in the AutoConnectAux.
To get all the AutoConnectElements in an AutoConnectAux object use the [**getElements**](apiaux.md#getelements) function. This function returns the vector of the reference wrapper as **AutoConnectElementVT** to all AutoConnectElements registered in the AutoConnectAux.
*AutoConnectElementVT* is a predefined type for it and can use methods of [std::vector](https://en.cppreference.com/w/cpp/container/vector)<[std::reference_wrapper](https://en.cppreference.com/w/cpp/utility/functional/reference_wrapper)>.
## Loading & saving AutoConnectElements with JSON
AutoConnect supports reading the custom Web page definitions written in JSON and also supports loading and saving of AutoConnectElements. In both cases, the target object is a [JSON document for AutoConnect](acjson.md). However, it can not save all AutoConnectElements contained in the page as a custom Web page. (ie. AutoConnectAux)
@ -503,12 +508,12 @@ For example, the combination of the sketch and JSON document as follows updates
Here holds two case examples. Both examples perform the same function. Only how to incorporate the **AutoConnect** into the sketch differs. Also included in the sample folder, HandlePortal.ino also shows how to use the [PageBuilder](https://github.com/Hieromon/PageBuilder) library for HTML assemblies.
Here hold two case examples. Both examples perform the same function. Only how to incorporate the **AutoConnect** into the sketch differs. Also included in the sample folder, HandlePortal.ino also shows how to use the [PageBuilder](https://github.com/Hieromon/PageBuilder) library for HTML assemblies.
## What does this example do?
Uses the web interface to light the LED connected to the **[NodeMCU](https://github.com/nodemcu/nodemcu-devkit-v1.0)** module D0 port (which could be referred to as *BUILTIN_LED*), the following animation is it.
Uses the web interface to light the LED connected to the D0 (sometimes called *BUILTIN_LED*) port of the **[NodeMCU](https://github.com/nodemcu/nodemcu-devkit-v1.0)** module like the following animation.
Access to the ESP8266 module connected WiFi from the browser then the page contains the current value of the D0 port would be displayed. The page has the buttons to switch the port value. The LED blinks according to the value of the button that was clicked. This example is a typical sketch of manipulating ESP8266's GPIO via WLAN.
Access to the ESP8266 module connected WiFi from the browser then the page contains the current value of the D0 port would be displayed. The page has the buttons to switch the port value. The LED will blink according to the value with clicked by the button. This example is a typical sketch of manipulating ESP8266's GPIO via WLAN.
<imgdata-gifffer="images/ac2.gif"/>
@ -31,7 +31,7 @@ Declare only AutoConnect, performs handleClient.
## Used with MQTT as a client application
The effect of AutoConnect is not only for ESP8266/ESP32 as the web server. It has advantages for something WiFi client as well. For example, AutoConnect is also effective for publishing MQTT messages from various measurement points. Even if the SSID is different for each measurement point, it is not necessary to modify the sketch.
The effect of AutoConnect is not only for ESP8266/ESP32 as the web server. It has advantages for something WiFi client as well. For example, AutoConnect is also convenient for publishing MQTT messages from various measurement points. Even if the SSID is different for each measurement point, it is not necessary to modify the sketch.
This example tries to publish the WiFi signal strength of ESP8266 with MQTT. It uses the [ThingSpeak](https://thingspeak.com/) for MQTT broker. ESP8266 publishes the RSSI value to the channel created on ThingSpeak as [MQTT client](https://github.com/knolleary/pubsubclient). This example is well suited to demonstrate the usefulness of AutoConnect, as RSSI values are measured at each access point usually. Just adding a few lines of code makes it unnecessary to upload sketches with the different SSIDs rewrite for each access point.
style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:3.88055563px;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;writing-mode:lr-tb;text-anchor:start;stroke-width:0.26458332">Original FSbrowser.ino (part of code)</tspan></text>
style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:3.88055563px;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;writing-mode:lr-tb;text-anchor:start;stroke-width:0.26458332">Original FSbrowser.ino (a part of code)</tspan></text>
style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:3.88055563px;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;writing-mode:lr-tb;text-anchor:start;stroke-width:0.26458332">Modified FSbrowser.ino (part of code)</tspan></text>
style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:3.88055563px;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;writing-mode:lr-tb;text-anchor:start;stroke-width:0.26458332">Modified FSbrowser.ino (a part of code)</tspan></text>
@ -31,10 +31,10 @@ The changes I made to adapt the FSBrowser to the AutoConnect menu are slight as
2. Add the menu item named "**Edit**" and "**List**" of AutoConnectAux as each page.
3. Replace the instance of ESP8266WebServer to AutoConnect.
4. Change the menu title to FSBrowser using [AutoConnectConfig::title](apiconfig.md#title).
5. Join the legacy pages to AutoConnect declared at step #1 using [AutoConnect::join](api.md#join).<br>Joining multiple at one time with [std::vector](https://ja.cppreference.com/w/cpp/container/vector/vector)'s' [list initialization](https://en.cppreference.com/w/cpp/language/list_initialization).
5. Join the legacy pages to AutoConnect declared at step #1 using [AutoConnect::join](api.md#join).<br>Joining multiple at one time with the [list initialization](https://en.cppreference.com/w/cpp/language/list_initialization) for [std::vector](https://ja.cppreference.com/w/cpp/container/vector/vector).
6. According to the basic procedure of AutoConnect.<br>Establish a connection with [AutoConnect::begin](api.md#begin) and perform [AutoConnect::handleClient](api.md#handleclient) in **loop()**.
<iclass="fa fa-code"></i> **Modification for FSBrowser** <small>(part of sketch code)</small>
<iclass="fa fa-code"></i> **Modification for FSBrowser** <small>(a part of sketch code)</small>
Hieromon Ikasamo
6 years ago
