Latest revision as of 07:49, 8 July 2010

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Introduction

The Palm Pre lacks a stock Virtual Keyboard, which can come in handy in many situations. Having a virtual keyboard is good for quick text responses/notes without having to stress the slider too much. Although the biggest use for a virtual keyboard on the Palm Pre is landscape mode. The goal of this Patch/Application is to have a fully integrated Virtual Keyboard for the many tasks where it is an inconvenience to use the hardware keyboard.

Operation

Unlike the Palm Symbol keyboard, you do not have to open the Pre's hardware keyboard to get the on-screen keyboard. Double-tapping the gesture area (near the round silver button that lights up) will bring up the on-screen keyboard if you are in a text input field. Tap with two fingers separated or Double-tap quickly. Currently the rendering takes a few seconds, and a 3rd tap will hide/stop the rendering. After you double-tap the blinking cursor should freeze for a few seconds while the keyboard renders. Be patient, future versions will work to minimize the load lag. When the Virtual Keyboard is displayed, a single tap on the gesture area will hide it.

Theme Selector key

The Theme Selector key is the lower left gears key on the default theme. On the remix themes the theme selector key is the lower right blank key. Tapping this brings up a list of installed themes to switch between.

Drag Mode Key

The Keyboard Drag-mode key is the finger key on the lower right side of the keyboard. On the remix themes the drag-mode key is the lower left blank key. Tapping this puts the keyboard into drag-mode, simply drag and drop the keyboard up and down the screen while this key is active.

Installation Procedure

Use the WebOS Internals over the air installer Preware and simply select the software keyboard from the list of available patches and install it. From Preware go to Available Packages -> Patch -> Mojo to find the Virtual Keyboard.

Known Issues

3-second Load Lag
Must highlight the text box that was highlighted when the VKB was drawn in order to single-tap hide
Backspace/Enter does not work in web pages
Lacks Autocorrect
Need configuration/customization application support

Themes and Options

You may wish to add haptic feedback, click sound feedback and/or custom themes. Currently this consists of editing json file(s). For detailed information on themes and options: Virtual Keyboard Configuration

Technical Background, Explanation and History

On an unmodified Pre if you press the "sym" key a scrollable 5x5 keyboard pops up full of alternate characters.

This is controlled by code incorporated into the framework.js. The specific functions there can be seeen in /usr/palm/frameworks/mojo/submissions/<framework_version>/javascripts/widget_charselector.js

with the layout controlled by 3 files in /usr/palm/frameworks/mojo/submissions/<framework_version>/templates/charselector

the actual list of characters that appear on the screen is controlled by /usr/palm/frameworks/mojo/submissions/<framework_version>/resources/en_us/alternatechars_table.json

On 12 August 2009 Webos-internals contributor Eric Gaudet (irc egaudet) announced success at patching the framework.js to accept a new function derived from the charselector widget. This pre-alpha proof of concept on-screen keyboard was made available as a patch. Since that time, the keyboard has been extended to work in search fields, to be installable as an IPKG, and to be themeable.

Note that this requires patching the primary framework of WebOS. This is not an application running on top of WebOS but rather a modification of the operation of the OS itself to render a custom widget.

@@ Line 1: / Line 1: @@
-[[Image: On_Screen_Keyboard.png|thumb|right]]
+{{template:patch}}
-'''Warning.  This is PRE ALPHA testing grade only software.  It may cause your pre to melt into a puddle and dissolve while turning blue.  Use at your own risk!'''
+[[Image: VirtualKeyboard_1.png|thumb|right]]
-[[Image: On_screen_keyboard_2.png|thumb|right]]
+[[Image: VirtualKeyboard_2.png|thumb|right]]
 =Introduction=
-The Palm Pre ships with a very limited on-screen keyboard for inserting symbols.  It works in portrait and landscape, in all apps, in all fields. This on screen keyboard provides a basis for programmers to develop a fully functional on screen keyboard for the Pre.
+[[Image: VirtualKeyboard_3.png|thumb|right]]
+The Palm Pre lacks a stock Virtual Keyboard, which can come in handy in many situations.  Having a virtual keyboard is good for quick text responses/notes without having to stress the slider too much.  Although the biggest use for a virtual keyboard on the Palm Pre is landscape mode.  The goal of this Patch/Application is to have a fully integrated Virtual Keyboard for the many tasks where it is an inconvenience to use the hardware keyboard.
-=Explanation=
+=Operation=
-On an unmodified Pre if you press the "sym" key and a scrollable 5x5 keyboard pops up full of alternate characters.
+Unlike the Palm Symbol keyboard, you do not have to open the Pre's hardware keyboard to get the on-screen keyboard.  Double-tapping the gesture area (near the round silver button that lights up) will bring up the on-screen keyboard if you are in a text input field. Tap with two fingers separated or Double-tap quickly.  Currently the rendering takes a few seconds, and a 3rd tap will hide/stop the rendering.  After you double-tap the blinking cursor should freeze for a few seconds while the keyboard renders.  Be patient, future versions will work to minimize the load lag.  When the Virtual Keyboard is displayed, a single tap on the gesture area will hide it.
-[[Image: On_screen_keyboard_3.png|thumb|right]]
-This is controlled by code incorporated into the framework.js.  The specific functions there can be seeen in '''/usr/palm/frameworks/mojo/submissions/191.15/javascripts/widget_charselector.js'''
-with the layout controlled by 3 files in '''/usr/palm/frameworks/mojo/submissions/191.15/templates/charselector'''
+=== Theme Selector key ===
+[[Image: VirtualKeyboard_4.png|160px|bottom]]<br><br>
+The Theme Selector key is the lower left gears key on the default theme.  On the remix themes the theme selector key is the lower right blank key.  Tapping this brings up a list of installed themes to switch between.<br><br>
-the actual list of characters that appear on the screen is controlled by '''/usr/palm/frameworks/mojo/submissions/191.15/resources/en_us/alternatechars_table.json'''
+=== Drag Mode Key ===
+[[Image: VirtualKeyboard_5.png|160px|bottom]]<br><br>
+The Keyboard Drag-mode key is the finger key on the lower right side of the keyboard.  On the remix themes the drag-mode key is the lower left blank key.  Tapping this puts the keyboard into drag-mode, simply drag and drop the keyboard up and down the screen while this key is active.
-At the simplest level then, creating an on-screen keyboard requires editing the alternate characters table json, to add the "regular" charcters to it, and then when you want a keyboard, press SYM and poof, a keyboard. The problem with that is, the alternatechars_table.json is "fragile"  the slightests mis-edit results in the pre entering a continuous book cycle.
+=Installation Procedure=
+Use the WebOS Internals over the air installer [[Application:Preware|Preware]] and simply select the software keyboard from the list of available patches and install it.  From Preware go to Available Packages -> Patch -> Mojo to find the Virtual Keyboard.
-At the next level, the framework's copy of widget_charselector.js needs to be modified to not close the keyboard after each keypress.
+=Known Issues=
+* 3-second Load Lag
+* Must highlight the text box that was highlighted when the VKB was drawn in order to single-tap hide
+* Backspace/Enter does not work in web pages
+* Lacks Autocorrect
+* Need configuration/customization application support
-As of 12 August 2009 Webos-internals contributor Eric Gaudet (irc egaudet) announced success at patching the framework.js to accept a new function derived from the charselector widget.  This pre-alpha proof of concept on-screen keyboard is available as a patch.
+=Themes and Options=
+You may wish to add haptic feedback, click sound feedback and/or custom themes.  Currently this consists of editing json file(s).  For detailed information on themes and options: [[Virtual Keyboard Configuration]]
-=Procedure=
+=Technical Background, Explanation and History=
-The patch is on Gitorious, please read the following to install the patch: [[Applying_Patches|Applying Patches]]
+On an unmodified Pre if you press the "sym" key a scrollable 5x5 keyboard pops up full of alternate characters.
-The patch should be stored (on Pre) in: /opt/src/modifications/frameworks/add-onscreen-keyboard.patch
+This is controlled by code incorporated into the framework.js.  The specific functions there can be seeen in '''/usr/palm/frameworks/mojo/submissions/<framework_version>/javascripts/widget_charselector.js'''
-There are also theme images needed in the current release. Folow these instructions to install the patch AND the theme images (NOTE: must be root)
+with the layout controlled by 3 files in '''/usr/palm/frameworks/mojo/submissions/<framework_version>/templates/charselector'''
-<pre>
+the actual list of characters that appear on the screen is controlled by '''/usr/palm/frameworks/mojo/submissions/<framework_version>/resources/en_us/alternatechars_table.json'''
-sh /opt/src/modifications/install add-onscreen-keyboard.patch
-sh /opt/src/modifications/frameworks/install_theme
-</pre>
-=Issues=
+On 12 August 2009 Webos-internals contributor Eric Gaudet (irc egaudet) announced success at patching the framework.js to accept a new function derived from the charselector widget.  This pre-alpha proof of concept on-screen keyboard was made available as a patch.   Since that time, the keyboard has been extended to work in search fields, to be installable as an IPKG, and to be themeable.
-as of 17 August 2009 the following issues are known:
-* Add method to get at numbers and symbols (possibilities: sym,flick) '''Done'''
+''Note that this requires patching the primary framework of WebOS.'' This is not an application running on top of WebOS but rather a modification of the operation of the OS itself to render a custom widget.
-* Modify keyboard dimensions in landscape mode to span accross width '''Done'''
-* Do not bring up keyboard when using hard keyboard clipboard events (might have to disable the keyboard when slider is open exposing hard keyboard)
-* Enable usage to search contacts/universal search -- for example Name, email address, etc are ''search'' fields not text fields.
-* Fix far right column  -- '''DONE 13 Aug'''
-* Verify auto-correct when space added.
-* Possibly (and optionally) play sound or haptic feedback on touch '''Done'''
-* Add clipboard capabilities
-* Explore T9-type, limited-width keyboard options
-* Do not bring up keyboard on swipe gestures, only tap if possible '''Done'''
-* Space, enter, backspace need to work  == '''DONE 13 Aug'''

Difference between revisions of "On Screen Keyboard"