131 lines
4.8 KiB
Markdown
131 lines
4.8 KiB
Markdown
Cordova Printer-Plugin
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======================
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A bunch of printing plugins for Cordova 3.x.x
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by Sebastián Katzer ([github.com/katzer](https://github.com/katzer))
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## Supported Platforms
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- **iOS** *(Print from iOS devices to AirPrint compatible printers)*<br>
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See [Drawing and Printing Guide for iOS](http://developer.apple.com/library/ios/documentation/2ddrawing/conceptual/drawingprintingios/Printing/Printing.html) for detailed informations and screenshots.
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- **Android** *(Print through 3rd party printing apps)*
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## Adding the Plugin to your project
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Through the [Command-line Interface](http://cordova.apache.org/docs/en/3.0.0/guide_cli_index.md.html#The%20Command-line%20Interface):
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```bash
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cordova plugin add https://github.com/katzer/cordova-plugin-printer.git
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```
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## Removing the Plugin from your project
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Through the [Command-line Interface](http://cordova.apache.org/docs/en/3.0.0/guide_cli_index.md.html#The%20Command-line%20Interface):
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```
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cordova plugin rm de.appplant.cordova.plugin.printer
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```
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## Release Notes
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#### Version 0.4.1 (not yet released)
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- Release under LGPL 2.1 license.
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#### Version 0.4.0 (24.08.2013)
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- [feature]: Added Android support<br>
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*Based on the Print Android plugin made by* ***Eion Robb***
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- [feature]: `print()` accepts a 4th arguments for platform specific properties.
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- [change]: the callback of `print()` will be called with a result code about the user action.
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#### Version 0.2.1 (13.08.2013)
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- [feature]: Support for callback scopes.
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#### Version 0.2.0 (11.08.2013)
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- [feature]: Added iOS support<br>
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*Based on the Print iOS plugin made by* ***Randy McMillan***
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## Using the plugin
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The plugin creates the object ```window.plugin.printer``` with two methods:
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### isServiceAvailable()
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Printing is only available on devices capable of multi-tasking (iPhone 3GS, iPhone 4 etc.) running iOS 4.2 or later. You can use this function to hide print functionality from users who will be unable to use it.<br>
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Function takes a callback function, passed to which is a boolean property. Optionally you can assign the scope in which the callback will be executed as a second parameter (default to *window*).
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```javascript
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/*
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* Find out if printing is available. Use this for showing/hiding print buttons.
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*/
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window.plugin.printer.isServiceAvailable(
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function (isAvailable) {
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alert(isavailable ? 'Service is available' : 'Service NOT available');
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}
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);
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```
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**Android:** The callback function will be called with a second argument which is an array, indicating which printer apps are available for printing.
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```javascript
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/*
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* Find out if printing is available. Use this to find out which apps are available for printing.
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*/
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window.plugin.printer.isServiceAvailable(
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function (isAvailable, installedAppIds) {
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alert('The following print apps are installed on your device: ' + installedAppIds.join(', '));
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}
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);
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```
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### print()
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Function takes an html string and (optionally) a callback function. Optionally you can assign the scope in which the callback will be executed as a third parameter (default to *window*).
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```javascript
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// Get HTML string
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var page = document.body.innerHTML;
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/*
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* Pass an HTML and - optionally - a callback function.
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*/
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window.plugin.printer.print(page, function (code) {
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switch (code) {
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case 0: // printing cancelled (cancel button pressed)
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case 2: // printed
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case 3: // printing failed
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case 4: // page not printed (something wrong happened e.g. service is not available)
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}
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}, this);
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```
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**Android:** An App-ID can be assigned as a platform configuration to indicate which 3rd party printing app shall be used. Otherwise the first found application will be used.
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```javascript
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/*
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* Pass an HTML and - optionally - a platform specific configuration.
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*/
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window.plugin.printer.print(page, null, this, { appId: 'epson.print' });
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```
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## Quirks
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### Testing in the iOS Simulator
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There's no need to waste lots of paper when testing - if you're using the iOS simulator, select File->Open Printer Simulator to open some dummy printers (print outs will appear as PDF files).
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### Adding Page Breaks to Printouts
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Use the 'page-break-before' property to specify a page break, e.g.
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```html
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<p>
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First page.
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</p>
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<p style="page-break-before: always">
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Second page.
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</p>
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```
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See W3Schools for more more information: http://www.w3schools.com/cssref/pr_print_pagebb.asp
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Note: you will need to add an extra top margin to new pages.
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### Printing on Real Printers (iOS)
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Printing is only supported on AirPrint-enabled printers or with the use of third-party software on your computer. The following pages contain more information:
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- AirPrint-enabled printers: http://www.apple.com/ipad/features/airprint.html
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- Enabling AirPrint on your computer: http://reviews.cnet.com/8301-19512_7-20023976-233.html, or http://www.ecamm.com/mac/printopia/
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